CN106196108B - Fire-grating chip architecture body - Google Patents
Fire-grating chip architecture body Download PDFInfo
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- CN106196108B CN106196108B CN201510225027.5A CN201510225027A CN106196108B CN 106196108 B CN106196108 B CN 106196108B CN 201510225027 A CN201510225027 A CN 201510225027A CN 106196108 B CN106196108 B CN 106196108B
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- fire grate
- grate segment
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- slit
- segment
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- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 241000208340 Araliaceae Species 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
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- 239000000470 constituent Substances 0.000 description 1
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Landscapes
- Incineration Of Waste (AREA)
Abstract
The present invention provides a kind of fire-grating chip architecture body, the high-temp combustion for the purpose of capable of corresponding to the reduction and efficient recuperation of heat by harmful substance.Fire-grating chip architecture body of the invention is used in stoker formula burner, comprising: the 1st fire grate segment, with upper wall portions, the front wall portion extended from the front end of the upper wall portions；With the 2nd fire grate segment, it is adjacent in the width direction with the 1st fire grate segment, 1st fire grate segment has convex surface part on the side adjacent with the 2nd fire grate segment, the convex surface part of 1st fire grate segment is abutted with the side of the 2nd fire grate segment, the 1st slit is formed between the side of the 1st fire grate segment and the side of the 2nd fire grate segment, in the state that the convex surface part of the 1st fire grate segment is abutted with the side of the 2nd fire grate segment, the 1st fire grate segment and the 2nd fire grate segment are interconnected.
Description
Technical field
The present invention relates to fire-grating chip architecture bodies.
Background technique
Currently, carrying out the waste of harmless treatment as the harmful substance generated to the burning disposal with waste
The incinerator that processing is arranged, and known stoker formula incinerator.Stoker formula incinerator has the width along incinerator
Direction row and configure side by side fixed grate film column and movable fire grate segment column.Fixed grate film column and movable fire grate segment arrange along
The length direction (transfer direction of burning disposal object) of incinerator and to be alternately arranged be ladder-like.
In recent years, a large amount of offal treatment is arranged through additional setting boiler and turbogenerator in burning disposal function
On the basis of, it is arranged as recuperation of heat and has the function of the power plant to generate electricity.Power plant is necessary to ensure that steady in a long-term
Power supply, it is therefore desirable to not stop incinerator, can stablize and chronically continuously run.Moreover, from economical point
From the point of view of, it also requires that operating management expenses etc. (renewal cost, maintenance expense of consumable part etc.) is made to be bottom line.
Fig. 6 is the side partial cross-sectional of the siege of existing stoker formula incinerator.The furnace of stoker formula incinerator
Bed 1A has the fixed grate film column 5A being made of multiple fixed grate films and the movable fire grate being made of multiple movable fire grate segments
Piece column 5B.Fixed grate film column 5A and movable fire grate segment column 5B alternately matches along the transfer direction (left and right directions in figure) of waste
It sets.Fixed grate film column 5A and movable fire grate segment column 5B are respectively provided with fire grate segment 14.
Movable fire grate segment column 5B is supported on movable frame 7, and fixed grate film column 5A is supported on fixed frame 8.In addition,
Siege 1A has the driving hydraulic cylinder 9 for moving forward and backward movable frame 7, the drive for transmitting hydraulic cylinder power from driving hydraulic cylinder 9
Moving axis 10a, actuating arm 10b and wheel 11.
It is dynamic by the opposite front and back of movable fire grate segment column 5B and fixed grate film column 5A in stoker formula incinerator
Make, and can effectively carry out the transfer, reversion, stirring of waste.In order to make waste combustion, in fixed grate film column 5A and
The lower section of movable fire grate segment column 5B is configured with the bellows 13 for supplying combustion air.Air duct connector is connected on bellows 13
12.And (not shown) such as the dual panel turnover sluice gates (flap damper) of lower part of the bellows 13 by being located at bellows 13 and outside air
Truncation.
Fig. 7 is the outline enlarged side view of existing fixed grate film column 5A shown in fig. 6 and movable fire grate segment column 5B.
As shown, fixed grate film column 5A and movable fire grate segment column 5B are respectively provided with the bearing of the fire grate segment for supporting fire grate segment 14
Beam 5a, 5b.It is chimeric to have the rear portion for being located at scraper plate 15 on protrusion 5a2,5b2 set on the front end of fire grate segment backbar 5a, 5b
Recess portion 15a.In addition, being located at the recess portion 14a and the protrusion on the top for being located at fire grate segment backbar 5a, 5b at the rear portion of fire grate segment 14
5a1,5b1 are chimeric, so that the configuration of fire grate segment 14 is on scraper plate 15.In addition it is also possible to not in fixed grate film column 5A and movably
Scraper plate 15 is set on fire grate segment column 5B.In this case, movable fire grate segment column 5B is to transfer burning disposal object waste, and
It is slid back and forth while directly being contacted with fixed grate film column 5A.
In fixed grate film column 5A and movable fire grate segment column 5B shown in Fig. 7, by by the recess portion 14a of fire grate segment 14
It is embedded in protrusion 5a1,5b1, and is mounted on fire grate segment 14 on fire grate segment backbar 5a, 5b.Thereby, it is possible to not need special work
Fire grate segment 14 is simply provided to industry.In addition, fire grate segment can easily be replaced from the top of fire grate segment 14 in the inside of incinerator
14。
But in fixed grate film column 5A and movable fire grate segment column 5B shown in Fig. 7, worry in transfer waste
In the process, the hard foreign matter 16 in waste can be bitten with wedge-shaped between the upper surface of scraper plate 15 and the lower surface of fire grate segment 14
Gap in.Because the foreign matter 16 is deposited in above-mentioned gap, and fire grate segment 14-1 that can be as shown in phantom in Figure 7 is like that, furnace
Screening 14 floats from fire grate segment backbar 5a, 5b.In this case, it may occur that fire grate segment 14 falls off from protrusion 5a1,5b1 and broken
The case where block of the waste of the case where damage or imperfect combustion state is passed through and is fallen from the lower section of the fire grate segment 14 floated.
Moreover, when the combustion air supplied from the lower section of fire grate segment 14 is to concentrate on above-mentioned expanded due to floating because of fire grate segment 14
When the mode of gap is sprayed into furnace, the uneven of waste combustion can be caused.If waste unevenly burns, worry to draw
The high-temperature oxydation scaling loss of the part of fire grate segment 14 is played, and the durability of fire grate segment 14 is caused to be substantially reduced.
Fig. 8 A is the outline sectional elevation for constituting the existing fire grate segment of fire grate of stoker formula incinerator, and Fig. 8 B is Fig. 8 A
Shown in the part B1 amplification sectional elevation.In addition, Fig. 8 C is the general of fire grate segment in the state of accompanying foreign matter between fire grate segment
Slightly sectional elevation.
As shown in Figure 8 A, multiple fire grate segments 14 are configured between wing furnace screening 4a and central strip part 4, it is more by these
A fire grate segment 14 and constitute siege 1A.As shown in Figure 8 B, combustion air supply is formed between adjacent fire grate segment 14
Slit 17.
Fire grate segment 14 is not affixed in fire grate segment backbar 5a, 5b (referring to Fig. 7), therefore, when hard in waste
When foreign matter 16 enters to slit 17, as shown in Fig. 8 B and Fig. 8 C, fire grate segment 14-1 can float.In this case, slit 17
Width is widened by foreign matter 16, and combustion air is caused to become unevenly to the supply amount of siege 1A, and is caused unstable
Burning.
It can prevent fire grate segment 14 from floating if the upper surface that fire grate segment 14 is fixed on to fire grate segment backbar 5a, 5b.But
It is that in this case, the defined clearance for being displaced fire grate segment 14 to vertical direction disappears, therefore, fixed grate film column
Abrasion significantly occurs for the sliding surface of 5A and movable fire grate segment column 5B.In addition, in the fixed situation of fire grate segment 14, can
When dynamic fire grate segment column 5B sliding, hard foreign matter 16 is bitten with wedge-shaped between the upper surface of scraper plate 15 and the lower surface of fire grate segment 14
Gap in when, fire grate segment 14 can lose because of bending stress upwards.
Fire grate segment 14 uses under high temperature, corrosive environment, and shape is complicated, therefore uses resistance to usually as material
Hot-cast iron or heat resisting cast steel.Casting piece is compared with the not cast condition of carbon steel etc., and bending strength and impact resistance are low, therefore
It needs to use and can be avoided the construction for generating above-mentioned bending stress.
On the other hand, the fire grate segment 14 used in incinerator is exposed to 1200 DEG C or so of thermal-flame, corruption
Corrosion gas and fused salt etc..When the high temperature corrosion of fire grate segment 14 occurs, be periodically required to carry out fire grate segment 14 replacement or
Maintenance thereby has to stop incinerator.Therefore, it is necessary to improve the durability of fire grate segment 14, the number of replacement or maintenance is reduced,
And these operations are carried out with the short time.
In such a case, fire grate segment 14 (is equivalent to JIS SCH2 by the usually used low nickel heat resisting cast steel of for example high chromium
Material) manufacture in the case where, if not cool down fire grate segment 14, thickness can be reduced in a short time because of high temperature corrosion.
As shown in fig. 6, combustion air is under the siege 1A being made of fire grate segment 14 in stoker formula burner
The air duct connector 12 in portion supplies.Pass through the combustion air from siege 1A, thus cools down fire grate segment 14.It is made of fire grate segment 14
Siege 1A reduce the gap that sprays for combustion air, thus, it is possible to obtain high pressure when supplying necessary combustion-supporting air quantity to damage
It loses (for 0.5kPa~2.0kPa, preferably 1kPa~1.5kPa).The result is to be able to maintain that equalization in the inside of bellows 13
Pressure.
Combustion air cools down each fire grate segment 14 with the following table face contact of each fire grate segment 14 on one side, on one side from fire grate segment 14
The gap between the upper surface in gap, fire grate segment 14 and the lower surface of scraper plate 15 between lower surface and the upper surface of scraper plate 15
(sliding contact surface) and slit 17 into furnace by supplying.
Referring to Fig. 7, illustrate supply process of the combustion air to fire grate segment 14.To the combustion-supporting of bellows 13 (referring to Fig. 6) supply
Air and the fin 14b of fire grate segment 14 and the rear-face contact of fire grate segment 14, at the same it is mobile to the front of fire grate segment 14.Then,
Combustion air from the antetheca lower part 14c of fire grate segment 14, scraper plate 15 antetheca lower part 15a and Fig. 8 B shown in slit 17 by
It is supplied into furnace.
As the fire grate segment 14 carried out based on combustion air cooling technology and usually inquire into, pass through and adjust combustion-supporting sky
Gas blowout goes out to use the position of nozzle and slit, contacts combustion air effectively with the high-temperature portion of fire grate segment 14 to cool down the high-temperature portion.
But there is the unexpected closure because of slit or nozzle caused by based on pyrolysate, waste, low-melting-point metal etc., and
The case where high-temperature portion of fire grate segment 14 can not steadily be cooled down.
In addition, when the direction of action of movable fire grate segment column 5B is switched to retrogressing from advance, in the front wall portion of fire grate segment 14
Space is formed between waste layer, the front-surface side of the front wall portion of fire grate segment 14 will not be covered by waste.Fire grate as a result,
The front-surface side of the front wall portion of piece 14 is exposed in high-temperature corrosion environment.The result is that thickness occurs for the front wall portion of fire grate segment 14
Reduction, the slit 17 of fire grate segment 14 can be expanded.In addition, the sliding surface abrasion of antetheca lower part 14c and generate the inclination of fire grate segment 14
And shaking, the foreign matter in waste is easily entered to the lower part of siege 1A as a result,.Moreover, because fire grate segment 14 above-mentioned inclination and
The opening area that above-mentioned shaking will lead to siege 1A increases, and the pressure loss of siege 1A reduces, and the supply of combustion air is uneven.
Fig. 9 is the sectional view of other existing fire grate segments.In fire grate segment 19 shown in Fig. 9, so that combustion air is easy
In upper wall portions 19a and front wall portion 19b with fire grate segment 19 rear-face contact mode by scraper plate 19c, upper wall portions 19a and preceding
The flow path of wall portion 19b formation combustion air.In addition, in order to form the mainstream of combustion air, by the front wall portion 19b's of fire grate segment 19
The opening height dimension of lower part 19e is set to be large.But for the shape, if the waste of transfer or ash 20 are from the opening portion
It invades, then can not easily be discharged to the back side of fire grate segment 14.The result is that opening portion is blocked and interfered by waste or ash 20
The supply of combustion air, burning become unstable.
In nearest incinerator, mesh is reduced to the environmental pressures such as the reduction of harmful substance and the reduction of exhausted air quantity
, and the low latitude gas for strongly being reduced combustion air compares high-temp combustion.In addition, by pushing away using waste as the power generation of fuel
For the purpose of, hot recycling (Thermal Recycle) also is carried out to the high heat waste of waste plastics etc..Because of such operating
The variation of environment and the diversification of waste, the use environment of fire grate segment 14 become harsher.
Therefore, the cooling of fire grate segment 14 only carries out being insufficient by supplying primary air as current
's.It also proposed and water cooling (referring to patent document 1) is carried out to fire grate segment and a small amount of air (ginseng is brushed to the high-temperature portion of fire grate segment
According to patent document 2) scheme.But these are the schemes for the waste for the high high heat of waste plastics mixed fuel burning ratio that burns,
It can cause the increase of prime cost (initial cost) and operating cost (running cost).
Existing technical literature
Patent document 1: Japanese Patent No. 3838639
Patent document 2: Japanese Patent No. 3922992
Summary of the invention
Present invention point in view of the above existing problems, to provide a kind of fire-grating chip architecture body as project, the fire-grating chip architecture
Body can be corresponding to the high-temp combustion for the purpose of the reduction and efficient recuperation of heat by harmful substance.
In addition, another project of the invention is to provide a kind of compared with the past improve with low cost based on combustion air
The fire-grating chip architecture body of cooling effect.
In addition, another project of the invention is to provide one kind not influenced by the hard foreign matter in waste or ash, it is mechanical
The fire-grating chip architecture body of excellent in stability.
In addition, another project of the invention is to provide one kind to be supplied uniformly across combustion air, it can be steadily in the long term
The fire-grating chip architecture body of operating.
The present invention is to be able at least one solved in the above subject and makes.
According to one method of the present invention, a kind of fire-grating chip architecture body is provided.The fire-grating chip architecture body is used in motor-driven furnace
Row's formula burner, comprising: the 1st fire grate segment, with upper wall portions, the front wall portion extended from the front end of the upper wall portions；With
2nd fire grate segment, adjacent in the width direction with the 1st fire grate segment, the 1st fire grate segment is adjacent with the 2nd fire grate segment
Side on have convex surface part, the convex surface part of the 1st fire grate segment is abutted with the side of the 2nd fire grate segment, described
It is formed with the 1st slit between the side of 1st fire grate segment and the side of the 2nd fire grate segment, in the described convex of the 1st fire grate segment
In the state that the facial side with the 2nd fire grate segment abuts, the 1st fire grate segment and the 2nd fire grate segment are interconnected.
Another way according to the present invention, in above-mentioned fire-grating chip architecture body, the upper wall portions of the 1st fire grate segment exist
Front compared with length direction central portion has the 2nd slit.
Another way according to the present invention, in above-mentioned fire-grating chip architecture body, with adjacent with the 1st fire grate segment the
3 fire grate segments, the 3rd fire grate segment have upper wall portions, the 1st fire grate segment so that the 1st fire grate segment the antetheca position
Mode in the top of the upper wall portions of the 3rd fire grate segment configures, in the front end of the front wall portion of the 1st fire grate segment
The 3rd slit is formed between portion and the upper wall portions of the 3rd fire grate segment.
Another way according to the present invention, in above-mentioned fire-grating chip architecture body, the 1st fire grate segment is in the 1st fire grate
The rear of the front wall portion of piece has bearing sliding shoe, is formed with air between the bearing sliding shoe and the front wall portion
Flow path.
Another way according to the present invention, in above-mentioned fire-grating chip architecture body, the bearing sliding shoe is in the front wall portion
Side has inclined surface.
Another way according to the present invention, in above-mentioned fire-grating chip architecture body, the front wall portion of the 1st fire grate segment
Front surface part is constituted in such a way that the upper surface of the upper wall portions relative to the 1st fire grate segment is inclined with obtuse angle.
Another way according to the present invention, in above-mentioned fire-grating chip architecture body, the front wall portion of the 1st fire grate segment
The back side is formed as gradually-reducing shape in a manner of being formed thin the front end of the front wall portion towards front end.
Detailed description of the invention
Fig. 1 is the siege part for indicating the stoker formula incinerator using the fire-grating chip architecture body for having present embodiment
Overall diagram.
Fig. 2A is the top perspective view of fire grate segment.
Fig. 2 B is the top perspective view of fire grate segment.
Fig. 2 C is the face upwarding stereogram of fire grate segment.
Fig. 2 D is the top view of 2 adjacent fire grate segments.
Fig. 2 E is the side view of fire grate segment.
Fig. 3 is the outline amplification of the fixed grate film and movable fire grate segment in the siege for indicate stoker formula incinerator
Sectional view.
Fig. 4 is the top perspective view of fixed grate film column and movable fire grate segment column.
Fig. 5 is the enlarged drawing of the linking portion of fire grate segment.
Fig. 6 is the side partial cross-sectional of the siege of existing stoker formula incinerator.
Fig. 7 is the outline enlarged side view of existing fixed grate film column 5A and movable fire grate segment column 5B.
Fig. 8 A is the outline sectional elevation of existing fire grate segment.
Fig. 8 B is the amplification sectional elevation of part B1 shown in Fig. 8 A.
Fig. 8 C is the outline sectional elevation of fire grate segment in the state of accompanying foreign matter between fire grate segment.
Fig. 9 is the sectional view of other existing fire grate segments.
Description of symbols
1 ... stoker formula incinerator
6 ... fire grate segments
6a ... front wall portion
6a1 ... front surface part
6b ... upper wall portions
6c ... supports sliding shoe
The inclined surface 6c1 ...
The 2nd slit of 6d ...
6g, 6h ... convex surface part
The 1st slit of 6m ...
The 3rd slit of 6n ...
Specific embodiment
Hereinafter, being explained with reference to embodiments of the present invention.In attached drawing described below, for same or equivalent
Constituent element mark identical appended drawing reference and the repetitive description thereof will be omitted.
Fig. 1 is the siege part for indicating the stoker formula incinerator using the fire-grating chip architecture body for having present embodiment
Overall diagram.As shown, stoker formula incinerator 1 is with the siege 1A with step-like configuration as a whole.Siege 1A
It is constituted in a manner of configured with multilayer fire grate 2.Fire grate 2 has arid region along the transfer direction of burning disposal object
2a, the 1st combustion zone 2b, the 2nd combustion zone 2c and after-combustion region 2d.
The both sides of siege 1A in the direction of the width have wing furnace screening 4a (only indicating unilateral in figure), in width direction
Central portion has separator 4.In the example depicted in figure 1,1 separator 4 is equipped on stoker formula incinerator 1, by furnace
Row 2 is divided into two column of left and right.However, it is not limited to this can also be arranged on stoker formula incinerator 1 along width mode it is more
Fire grate 2 is divided into four column of three column of left and right or left and right etc. by a separator 4.
In addition, stoker chip incinerator 1 have air duct 12, be used for the arid region 2a to the fire grate 2 of siege 1A,
1st combustion zone 2b, the 2nd combustion zone 2c and after-combustion region 2d convey combustion air respectively.Air duct 12 with for dividing
Combustion air and to arid region 2a, the 1st combustion zone 2b, the 2nd combustion zone 2c and after-combustion region 2d supply bellows
3a, 3b, 3c, 3d, 3f connection.
The multiple fixed grate films and similarly match in the width direction that there is fire grate 2 width direction along siege 1A to configure
The multiple movable fire grate segments set.The column of the column of fixed grate film and movable fire grate segment along siege 1A burning disposal object
Transfer direction and be alternately configured to ladder-like.
Then, the fire grate segment for constituting the fire-grating chip architecture body of present embodiment is illustrated.Fig. 2A and Fig. 2 B is fire grate
The top perspective view of piece.In addition, Fig. 2 C is the face upwarding stereogram of fire grate segment.Fig. 2 D is the top view of 2 adjacent fire grate segments.Figure
2E is the side view of fire grate segment.Fire grate segment is by casting methods such as sand casting, cavityless casting, lost wax castings by resistance to hot-cast
What steel or heat-resisting cast iron were fabricated.
As shown in Figure 2A and 2B, fire grate segment 6 has upper wall portions 6b and is located at the front wall portion 6a of the front end of upper wall portions 6b.
Upper wall portions 6b behind end side (with front wall portion 6a be opposite side) the back side on have recess portion 6l.It is located at moreover, fire grate segment 6 has
The fin 6i of the back side of upper wall portions 6b.As shown in Figure 2 C, 3 fin 6i extend between front wall portion 6a and recess portion 6l.In addition,
The quantity of fin 6i is not limited to 3.
By upper wall portions 6b and multiple fin 6i mark off Lai gap (inner space) formed and pass through for combustion air
Access.That is, fire grate segment 6 is shaped generally as hollow bulk.In addition, 2 fin 6is of the configuration in two outsides are respectively provided with 2 protrusions
6e1.Each protrusion 6e1 has through hole 6e.Through hole 6e is formed by casting or drilling processing.
Fire grate segment 6 has convex surface part 6g, 6h on its lateral surface.Convex surface part 6g is formed in upper wall portions 6b's and front wall portion 6a
Two sides.In addition, convex surface part 6h is formed in the two sides of the rear end side of upper wall portions 6b.In addition, fire grate segment 6, which has, passes through convex surface part
6g, 6h and be relatively formed as concave concave part 6j.Concave part 6j is formed between convex surface part 6g and convex surface part 6h.In addition,
Fire grate segment 6 can also be only with some of convex surface part 6g, 6h.In addition, fire grate segment 6 can also only have on any one side
There is convex surface part 6g, 6h.
As shown in Figure 2 D, by making convex surface part 6g, 6h of fire grate segment 6 and adjacent other fire grate segments 6 in the width direction
Side abuts, and the 1st slit 6m is formed between the side of fire grate segment 6 and the side of other fire grate segments 6.That is, the 1st slit 6m shape
At between the concave part 6j of fire grate segment 6 and the concave part 6j of other fire grate segments 6.
Convex surface part 6g, 6h and concave part 6j are by carrying out milling (fraise) to the fire grate segment 6 as rough casting
Deng processing and formed.At this point, so that the width of the 1st slit 6m has defined width size (for 0.5mm or more and 2.0mm
Hereinafter, preferably 1.0mm or more and 1.5mm or less) mode fire grate segment 6 is machined.In addition, passing through precision height
Casting method manufacture fire grate segment 6 in the case where, can by casting form convex surface part 6g, 6h and concave part 6j, do not need
Machining.
Fin 6i mutual outside width of the configuration shown in fig. 2 C in two outsides is designed to be the width than upper wall portions 6b
It is narrow, it makes it easy to bite to the foreign matter of the small particle in above-mentioned 1st slit 6m (referring to Fig. 2 D) and be arranged to the lower part of fire grate segment 6
Out.
In addition, upper wall portions 6b is (preceding in the front compared with length direction central portion as shown in Fig. 2A, Fig. 2 B and Fig. 2 D
The side wall portion 6a) there is the 2nd slit 6d.2nd slit 6d is formed when casting fire grate segment 6, and fire grate segment 6 is used as rough casting
It uses.As a result, when considering manufacturing cost, the width of the 2nd slit 6d needs for 4mm or so or more.In the present embodiment, though
Right 2 the 2nd slit 6d are located on upper wall portions 6b, but the quantity of the 2nd slit 6d is not limited to 2.It can be according to the 1st slit 6m
Opening area, the opening area of the 2nd slit 6d, the opening area of aftermentioned 3rd slit 6n and necessary combustion-supporting air quantity, suitably
Adjust the quantity of the 2nd slit 6d.In addition, the quantity of fin 6i can be changed according to the quantity of the 2nd slit 6d.
Be made of fire grate segment 6 siege 1A needs obtained when supplying necessary combustion-supporting air quantity high pressure loss (for
0.5kPa or more and 2.0kPa are hereinafter, preferably 1kPa or more and 1.5kPa or less).1st slit 6m, the 2nd slit 6d and after
The opening area of the 3rd slit 6n stated is adjusted in a manner of siege 1A can be made to obtain the high pressure loss.
As shown in Fig. 2 C and Fig. 2 E, fire grate segment 6 has bearing sliding shoe 6c at the rear (back side) of front wall portion 6a.Branch
Holding sliding shoe 6c is shaped together by casting with fire grate segment 6.As shown in Figure 2 E, the lateral section for supporting sliding shoe 6c is formed
For substantially rectangular shape.Bearing sliding shoe 6c is located at the lower face side of fin 6i.As a result, bearing sliding shoe 6c and front wall portion 6a it
Between be formed with air flow circuit 6k.
As shown in Figure 2 C, bearing sliding shoe 6c have on the face (front surface) of the side front wall portion 6a with towards width direction and
The inclined surface 6c1 that inclined mode is formed.In the present embodiment, bearing sliding shoe 6c is configured to, to support sliding shoe 6c's
The width direction substantially central portion of front surface be vertex, and from the vertex towards width direction both sides with about 10 degree or more and
15 degree of angle tilts below, thus form inclined surface 6c1.
As shown in Figure 2 E, the front surface part 6a1 of the front wall portion 6a of fire grate segment 6 has with the upper surface relative to upper wall portions 6b
Obtuse angle and inclined mode is constituted.Specifically, front wall portion 6a is with below with 100 ° or more and 120 ° relative to upper wall portions 6b
The mode of angle tilts.As a result, when fire grate segment 6 keeps waste mobile, fire grate segment 6 is generated downwards based on waste
Pressing force.As a result, it is possible to inhibiting floating for fire grate segment 6 and stablizing fire grate segment 6.
In addition, as shown in Figure 2 E, in a manner of being formed thin the front end 6f of front wall portion 6a towards front end, making antetheca
The back side of the front end 6f of portion 6a is formed as gradually-reducing shape.The angle at the back side for being formed as gradually-reducing shape of front end 6f is relative to upper wall
The upper surface of portion 6b and be about 45 ° or more and 50 ° or less.
Fig. 3 is fixed grate film and movable fire grate in the siege 1A for indicate stoker formula incinerator shown in FIG. 1
The outline zoom side sectional view of piece.In addition, Fig. 4 is the top perspective view of fixed grate film column and movable fire grate segment column.As Fig. 3 with
And shown in Fig. 4, the fixed grate film column 5A being made of multiple fixed grate films and the movable furnace being made of multiple movable fire grate segments
Screening column 5B is respectively provided with fire grate segment 6 shown in Fig. 2A to Fig. 2 E.The fire-grating chip architecture body of present embodiment is by Fig. 3 and Fig. 4
Shown in multiple fire grate segments 6 constitute.In addition, the siege 1A of present embodiment by the fire grate segment 14 in siege 1A shown in fig. 6 with
And scraper plate 15 is replaced into fire grate segment 6.
As shown in figure 3, the recess portion 6l of fire grate segment 6 is embedded in fixed grate film column 5A and movable fire grate segment column 5B
Protrusion 5a1, the 5b1 being located on the upper surface of fire grate segment backbar 5a, 5b.Fire grate segment 6 is mounted on fire grate segment backbar as a result,
On 5a, 5b.
As shown in figure 3, fire grate segment 6 (an example for being equivalent to the 1st fire grate segment) is (to be equivalent to the 3rd fire grate with other fire grate segments 6
An example of piece) mode adjacent along its length configures.In addition, fire grate segment 6 so that front wall portion 6a be located at it is adjacent along its length
The modes of top of upper wall portions 6b of other fire grate segments 6 configure.By the bearing sliding shoe 6c and other fire grates that make fire grate segment 6
The upper surface of the upper wall portions 6b of piece contacts and supports fire grate segment 6.As a result, in the front end 6f of the front wall portion 6a of fire grate segment 6 and its
The 3rd slit 6n is formed between the upper wall portions 6b of his fire grate segment 6.The width of 3rd slit 6n is more than 0mm and is 0.5mm hereinafter, excellent
It is selected as more than 0mm and is 0.3mm or less.In the present embodiment, by making the width of the 3rd slit 6n within the above range,
And it is able to suppress intrusion and hard foreign matter of the foreign matter from the 3rd slit 6n and is bitten with wedge-shaped.
As being associated with Fig. 2 E explanatorily, in a manner of being formed thin the front end 6f of front wall portion 6a towards front end,
The back side of the front end 6f of front wall portion 6a is formed as gradually-reducing shape.In addition, the angle at the back side for being formed as gradually-reducing shape of front end 6f
Upper surface relative to upper wall portions 6b is about 45 ° or more and 50 ° or less.Even if as a result, foreign matter from the 3rd slit 6n invade to
In the case where the inside of fire grate segment 6, foreign matter can also be discharged with not being detained.In the case where angle is smaller than the range, intrusion
Foreign matter be easy to be detained, when angle is bigger than the range, the intensity of the front end 6f of front wall portion 6a can be become too weak.
In addition, the bearing sliding shoe 6c of fire grate segment 6 has on the face of the side front wall portion 6a as being associated with explanatorily with Fig. 2 C
There is inclined surface 6c1 (referring to Fig. 2 C).Even if foreign matter is invaded from the 3rd slit 6n of fire grate segment 6 to the inside of fire grate segment 6 as a result,
Foreign matter can be made to separate to the left and right along inclined surface 6c1 by the forward motion of fire grate segment 6.The isolated foreign matter in left and right is by setting
The side of fire grate segment 6 opening and to the lower part of siege 1A be discharged.
As shown in figure 4, the fire grate segment 6 of fixed grate film column 5A and movable fire grate segment column 5B (are equivalent to the 1st fire grate segment
An example) with other fire grate segments 6 (an example for being equivalent to the 2nd fire grate segment) be adjacent to configuration in the width direction.In the present embodiment,
By abutting convex surface part 6g, 6h of fire grate segment 6 and convex surface part 6g, 6h of other adjacent fire grate segments 6, and in fire grate segment 6
The 1st slit 6m is formed between side and the side of other fire grate segments 6.In addition, in the present embodiment, although by making 2 furnaces
Convex surface part 6g, 6h of screening 6 is against each other and forms the 1st slit 6m, and but it is not limited to this.For example, if in 2 fire grate segments 6
At least one fire grate segment 6 has convex surface part 6g, 6h on its lateral surface, then by keeping the side of 2 fire grate segments 6 against each other, and
Form the 1st slit 6m.In addition, fire grate segment 6 has at least one of convex surface part 6g, 6h.
In addition, in the present embodiment, being supported in convex surface part 6g, 6h of fire grate segment 6 and the side of other adjacent fire grate segments 6
In the state of connecing, fire grate segment 6 and other fire grate segments 6 are interconnected (fixation).Fig. 5 is the enlarged drawing of the linking portion of fire grate segment 6.
As shown in figure 5, being located at fire grate segment 6 when the convex surface part 6g of fire grate segment 6 is abutted relative to the convex surface part 6g of other fire grate segments 6
Through hole 6e on fin 6i is adjacent with the through hole 6e on the fin 6i for being located at other fire grate segments.It is inserted in these through holes 6e
Enter bolt 18, and is screwed with nut 18a via washer 18b on the end of bolt 18.Fire grate segment 6 and other fire grates as a result,
Piece 6 is interconnected.
In the present embodiment, in the state that convex surface part 6g, 6h of fire grate segment 6 are abutted with the side of other fire grate segments 6,
Fire grate segment 6 and other fire grate segments 6 are interconnected, therefore are able to maintain the size of the 1st slit 6m.Even if incombustible etc. as a result,
Hard foreign matter enters in the 1st slit 6m, is also able to maintain that the size of the 1st slit 6m.The result is, in incinerator operating,
It is able to suppress the variation of the pressure loss of siege 1A.Therefore, combustion air can be supplied uniformly across to siege 1A, it can be ensured that steady
Fixed burning.In addition, the side surface part of fire grate segment 6 can equably be cooled down within the scope of whole length.
In addition, in the present embodiment, fire grate segment 6 and other fire grate segments 6 are interconnected, therefore even if hard foreign matter with wedge
Shape enters in the 3rd slit 6n of fire grate segment 6, can also be born to make based on what foreign matter generated by the weight of multiple fire grate segments 6
The power that fire grate segment 6 floats.Thereby, it is possible to prevent floating for fire grate segment 6.In addition, passing through as the method for preventing fire grate segment from floating
Japanese Unexamined Patent Publication 2013-72628 bulletin etc. and propose the method being fixed on fire grate segment on fire grate segment backbar.This embodiment party
Formula proposes the new method for preventing from floating.
As described above, fire grate segment 6 is manufactured by casting.When oblique with draft on the protrusion 6e1 in fin 6i
When spending, bolt 18 and nut 18a can be tapped with the side generating unit of protrusion 6e1 and be touched.The part contacts in order to prevent, such as Fig. 5
It is shown, the lateral mechanical of protrusion 6e1 can be processed as planar eliminating pattern draft.Alternatively, it is also possible to without machinery
It processes and comes as washer 18b using taper washer.Bolt 18 and the fastening of nut 18a are dimensioned to, even if hard is different
Object bites to the change in size that will not make the 1st slit 6m in the 1st slit 6m.In addition, the mutual connection of fire grate segment 6 does not limit
For bolt 18 and nut 18a, such as pin and split pin (split pin) also can be used.
Then, the flowing of the combustion air in the fire-grating chip architecture body of present embodiment is illustrated referring to Fig. 3 and Fig. 4.
Combustion air as in Fig. 3 as shown in arrow A1 from the lower section of fixed grate film column 5A and movable fire grate segment column 5B supply, and
As flowed as shown in arrow A2 along the front in the upper wall portions 6b of fire grate segment 6 towards fire grate segment 6 in Fig. 3.Then, combustion-supporting
A part of air from the 2nd slit 6d shown in arrow A4 in Fig. 3 into furnace as sprayed.No matter the 2nd slit 6d is with stationary furnace
The mutual alignment of screening column 5A and movable fire grate segment column 5B and the mode exposed always into furnace is located at upper wall portions 6b.In addition, the 2nd
Slit 6d is cleaned by the waste of the upper surface transfer along fire grate segment 6, therefore will not be blocked.Therefore, combustion air
It is supplied uniformly across to siege, and combustion air contacts with upper wall portions 6b and can be cooled effectively fire grate segment 6.
In addition, as shown in figure 4, a part of combustion air as in Fig. 4 as shown in arrow A5, from being formed in fire grate segment 6
Side and other fire grate segments 6 side between the 1st slit 6m sprayed into furnace.In addition, as shown in figure 3, combustion air
A part is led to along the inner face of the upper wall portions 6b of fire grate segment 6 from the air flow circuit 6k between bearing sliding shoe 6c and front wall portion 6a
It crosses, and is sprayed from the 3rd slit 6n into furnace.At this point, combustion air and bearing sliding shoe 6c collision and upward, in Fig. 3
It is moved in upper wall portions 6b and front wall portion 6a towards the 3rd slit 6n as shown in arrow A3.That is, passing through bearing sliding shoe
The presence of 6c, and it is formed with the flow path of the inner face along upper wall portions 6b and front wall portion 6a of combustion air.Accordingly, because combustion-supporting
Air is contacted with upper wall portions 6b and front wall portion 6a, so can be cooled effectively upper wall portions 6b and front wall portion 6a.
In addition, because reducing to the minimum the width of the 3rd slit 6n, the mainstream of combustion air is from the 1st slit 6m and the 2nd
Slit 6d sprays.Therefore, because can mainly make the waste combustion on the top of the upper wall portions 6b of fire grate segment 6, and relatively press down
The burning of the waste in the front of front wall portion 6a processed, so being able to suppress the localized hyperthermia of front wall portion 6a.
In addition, in the present embodiment, bearing sliding shoe 6c is located at the inside of fire grate segment 6, therefore supports sliding shoe 6c and do not have
Expose in oriented furnace.In addition, bearing sliding shoe 6c carried out by combustion air it is air-cooled.Therefore, be able to suppress based on high temperature corrosion and
The abrasion of caused bearing sliding shoe 6c reduces thickness, can maintain the construction for supporting fire grate segment 6 for a long time.
As shown in figure 4, fire-grating chip architecture body according to the present embodiment, combustion air is from the 1st slit 6m, the 2nd slit 6d
It is sprayed with the 3rd slit 6n.The flowing of combustion air will not be unbalance as a result, and combustion air can be made to contact with 6 entirety of fire grate segment.
Therefore, fire grate segment 6 is efficiently cooled down, and improves durability.In addition, combustion-supporting sky can be supplied uniformly across to the entire surface of siege 1A
Gas can make waste uniformly and stably burn.
According to fire-grating chip architecture body discussed above, as the supply mouth of combustion air, and the side wall with fire grate segment 6
Portion (the 1st slit 6m), the front side (the 2nd slit 6d) of upper wall portions 6d and this 3 portions lower part (the 3rd slit 6n) of front wall portion 6a
Position.The flowing of combustion air will not be unbalance as a result, and the back side that can be cooled effectively fire grate segment 6 is whole, improves fire grate segment 6
Durability.
In addition, according to above-mentioned fire-grating chip architecture body, hence it is evident that reduce based on fire grate caused by the hard foreign matter in waste
The chance that piece 6 floats can be continuously run steadily in the long term.
In addition, according to above-mentioned fire-grating chip architecture body, be able to suppress fire grate segment 6 float and adjacent fire grate segment 6 between
The 1st slit 6m size variation.The setting state of fire grate segment 6 can be stablized as a result, therefore, be able to suppress based on primary empty
Scaling loss is corroded in the localized hyperthermia that the part of gas sprays caused non-uniform combustion and fire grate segment 6, seeks the service life of fire grate segment 6
Extend.
In addition, according to above-mentioned fire-grating chip architecture body the servicing machine meeting of fire grate segment 6 can be cut down, therefore it is possible to realize operations to bear
The reduction of load.
In addition, can be realized to arrange the burning disposal with power plant function and be wanted according to above-mentioned fire-grating chip architecture body
It is asking, continuously run and the shortening during repair and maintenance for a long time.In addition, can be improved the year work ratio that burning disposal is arranged, into
The stable power supply of row.Moreover, being capable of providing a kind of stoker formula incinerator that can cut down the operating management expenses arranged.
Embodiments of the present invention are explained above, but the present invention is not limited to above embodiment, it can be in right
Various modifications are carried out in the range of technical idea documented by claim and specification, attached drawing.Even in addition, without direct
Any shape and material being documented in specification and attached drawing are at this Shen as long as playing the role of the present application, effect
In the range of the technical idea that please be invent.
Claims (6)
1. a kind of fire-grating chip architecture body, be used in stoker formula burner comprising:
1st fire grate segment, with upper wall portions, the front wall portion extended from the front end of the upper wall portions；With
2nd fire grate segment, it is adjacent in the width direction with the 1st fire grate segment,
1st fire grate segment has the 1st convex surface part and the 2nd convex surface part on the side adjacent with the 2nd fire grate segment, and described the
1 convex surface part is formed in the entire side of the rear end of the upper wall portions, and the 2nd convex surface part is formed in the front end of the upper wall portions
The entire side in portion and the entire side of the front wall portion,
The 1st convex surface part and the 2nd convex surface part of 1st fire grate segment are abutted with the side of the 2nd fire grate segment, in institute
It states and is formed with the 1st slit between the side of the 1st fire grate segment and the side of the 2nd fire grate segment,
Linearly to extend between the front end and rear end of the upper wall portions of 1st slit in the 1st fire grate segment, institute
The width for stating the 1st slit be 0.5mm or more and 2.0mm hereinafter,
To be abutted in the 1st convex surface part of the 1st fire grate segment and the 2nd convex surface part with the side of the 2nd fire grate segment
In the state of maintain the 1st slit width dimensions mode, the 1st fire grate segment and the 2nd fire grate segment pass through bolt
It is interconnected,
The rear of the front wall portion of 1st fire grate segment in the 1st fire grate segment, which has, is formed as one with the 1st fire grate segment
The bearing sliding shoe of body,
Air flow circuit is formed between the bearing sliding shoe and the front wall portion.
2. fire-grating chip architecture body according to claim 1, which is characterized in that
The upper wall portions of 1st fire grate segment have the 2nd slit in the front compared with length direction central portion,
The width of 2nd slit is 4mm or more.
3. fire-grating chip architecture body according to claim 1 or 2, which is characterized in that
With 3rd fire grate segment adjacent with the 1st fire grate segment,
3rd fire grate segment has upper wall portions,
1st fire grate segment is so that the front wall portion of the 1st fire grate segment is located at the upper wall portions of the 3rd fire grate segment
The mode of top configures,
It is formed between the front end of the front wall portion of the 1st fire grate segment and the upper wall portions of the 3rd fire grate segment
3rd slit,
The width of 3rd slit is more than 0mm and is 0.5mm or less.
4. fire-grating chip architecture body according to claim 1, which is characterized in that
The bearing sliding shoe has inclined surface in the front wall portion side.
5. fire-grating chip architecture body according to claim 1 or 2, which is characterized in that
The front surface part of the front wall portion of 1st fire grate segment is whole with the upper wall portions relative to the 1st fire grate segment
Upper surface have obtuse angle and inclined mode is constituted.
6. fire-grating chip architecture body according to claim 1, which is characterized in that
The back side of the front wall portion of 1st fire grate segment is so that the front end of the front wall portion is formed thin towards front end
Mode is formed as gradually-reducing shape.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510225027.5A CN106196108B (en) | 2015-05-05 | 2015-05-05 | Fire-grating chip architecture body |
| JP2016022849A JP2016211836A (en) | 2015-05-05 | 2016-02-09 | Grate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510225027.5A CN106196108B (en) | 2015-05-05 | 2015-05-05 | Fire-grating chip architecture body |
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| Publication Number | Publication Date |
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| CN106196108A CN106196108A (en) | 2016-12-07 |
| CN106196108B true CN106196108B (en) | 2019-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510225027.5A Active CN106196108B (en) | 2015-05-05 | 2015-05-05 | Fire-grating chip architecture body |
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| Country | Link |
|---|---|
| JP (1) | JP2016211836A (en) |
| CN (1) | CN106196108B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102088268B1 (en) * | 2019-05-22 | 2020-03-13 | 조일금속공업 주식회사 | Grate for incinerator |
| WO2021004852A1 (en) | 2019-07-05 | 2021-01-14 | Hitachi Zosen Inova Ag | Grate block for a combustion grate |
| CN112610955A (en) * | 2020-12-18 | 2021-04-06 | 上海康恒环境股份有限公司 | Combined grate bar structure of incinerator grate |
| KR102508354B1 (en) * | 2021-08-19 | 2023-03-09 | 박준형 | Water Cooled Fire Grate Bar for Stoker Combustion Furnace |
| KR102597019B1 (en) * | 2022-11-30 | 2023-11-01 | 조일금속공업(주) | Air-cooled grate for incinerator |
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| CN202927850U (en) * | 2012-11-26 | 2013-05-08 | 北京奥科瑞丰新能源股份有限公司生物质能研究院 | Fire grate used in dying furnace |
| CN104235861A (en) * | 2014-10-14 | 2014-12-24 | 济南锅炉集团有限公司 | Labyrinth type reciprocating fire grate segment of grate |
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2015
- 2015-05-05 CN CN201510225027.5A patent/CN106196108B/en active Active
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| JP3819624B2 (en) * | 1999-02-17 | 2006-09-13 | 株式会社タクマ | Stair sliding stalker |
| JP2003097807A (en) * | 2001-09-26 | 2003-04-03 | Kubota Corp | Structure of fire grate piece |
| CN200952711Y (en) * | 2005-11-15 | 2007-09-26 | 高心德 | Grate device and one kind of grate bars for energy-saving environment protection boiler |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106196108A (en) | 2016-12-07 |
| JP2016211836A (en) | 2016-12-15 |
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