CN110617494A - Boiler flue cleaning equipment - Google Patents
Boiler flue cleaning equipment Download PDFInfo
- Publication number
- CN110617494A CN110617494A CN201910962739.3A CN201910962739A CN110617494A CN 110617494 A CN110617494 A CN 110617494A CN 201910962739 A CN201910962739 A CN 201910962739A CN 110617494 A CN110617494 A CN 110617494A
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- China
- Prior art keywords
- fixed
- upper cover
- bottom plate
- brush
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 37
- 239000000428 dust Substances 0.000 claims abstract description 48
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 8
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 8
- 241001330002 Bambuseae Species 0.000 claims description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 8
- 239000011425 bamboo Substances 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/035—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing by suction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/047—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices having internal motors, e.g. turbines for powering cleaning tools
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
- F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
- F23J3/026—Cleaning furnace tubes; Cleaning flues or chimneys cleaning the chimneys
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses boiler flue cleaning equipment which is provided with a hard pipe, wherein one end of the hard pipe is connected with a dust collection device through a hose, the other end of the hard pipe is fixedly provided with a dust collection structure, the dust collection structure comprises a circular upper cover and a circular bottom plate, a cavity is formed between the upper cover and the bottom plate, a circle of gap for collecting dust is formed in the edge of the upper cover and the edge of the bottom plate, the other end of the hard pipe is vertically fixed at the central position of the upper cover, the hard pipe is communicated with the cavity between the upper cover and the bottom plate, a bearing is fixed on the hard pipe, side support arms which extend towards two sides and are vertical to the hard pipe are fixedly connected outside the bearing, a cleaning brush driven by a motor to rotate is fixed at the end part of one side support arm, and a roller driven by the motor to rotate is fixed at the end part of the other. The invention adopts the combination of electric drive and the dust collector, thereby solving the problem of environmental pollution caused by smoke dust cleaning, greatly reducing the labor cost and greatly improving the production efficiency.
Description
Technical Field
The invention relates to the field of flue cleaning.
Background
Industrial production and winter heating can not leave the boiler, and the boiler flue can the laying dust in the operation process, influences the heat exchange efficiency of boiler when the laying dust is more, current generally adopts artifical steel wire brush mediation with the laying dust clearance, and reuse compressed air sweeps, and the clearance process is consuming time and is used up power, leads to the fact certain pollution to the environment.
Disclosure of Invention
The invention aims to solve the technical problem of realizing equipment capable of automatically and efficiently cleaning a flue.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a boiler flue cleaning equipment, equipment are equipped with the hard tube, hose connection dust extraction is passed through to hard tube one end, the hard tube other end is fixed with dust collection structure, dust collection structure includes circular shape upper cover and circular shape bottom plate, the cavity has between upper cover and the bottom plate, the edge of upper cover and the edge of bottom plate have the round clearance that is used for the dust absorption, the other end vertical fixation of hard tube puts at the central point of upper cover, cavity intercommunication between hard tube and upper cover, the bottom plate, be fixed with the bearing on the hard tube, the outer rigid coupling of bearing extend to both sides and with hard tube vertically collateral branch supporting arm, one of them collateral branch supporting arm end fixing has by the rotatory clean brush of motor drive, another collateral branch supporting arm end fixing has by the rotatory gyro wheel of motor drive.
The brush structure is characterized in that a circle of circular support is arranged at the gap between the edge of the upper cover and the edge of the bottom plate, gaps are formed between the circular support and the edge of the upper cover and between the circular support and the edge of the bottom plate, and brush structures extending outwards are arranged on the edge of the bottom plate and the circular support.
The upper cover is a truncated cone-shaped plate protruding towards the direction of the hard tube, the bottom plate is a circular flat plate, and a contact switch is fixed on the bottom surface of the bottom plate.
The roller is fixed on the wheel carrier through the wheel shaft, the wheel shaft is parallel to the hard tube, the wheel carrier is fixedly provided with a motor for driving the wheel shaft to rotate, the roller is fixedly connected on the wheel shaft, the cleaning brush comprises a supporting plate and brush bristles fixed on the outer side surface of the supporting plate, the inner side surface of the supporting plate is fixed on an output shaft of the motor, the output shaft of the motor for driving the cleaning brush to rotate is coaxial with the side supporting arms, and the two side supporting arms are coaxial.
The collateral branch braced arm is shaft-like structure, shaft-like structure's inside cavity and outer end opening, the spring has been placed in the shaft-like structure, extension rod one end stretches into the interior compression spring of shaft-like structure, and the other end stretches out shaft-like structure and is used for fixed wheel carrier or the clean brush pivoted motor of drive, the extension rod middle part is equipped with convex spacing ring and spacing ring in shaft-like structure, the opening part of shaft-like structure is equipped with the interior turn-ups structure of restriction spacing ring.
Be fixed with the bearing group on the hard tube, it is fixed the bearing of collateral branch vaulting pole is located between upper cover and the bearing group, the outer rigid coupling of bearing group has rotatory pipe box, the outer rigid coupling of rotatory pipe box has a power section of thick bamboo, the power brush that fixed heliciform arranged on the power section of thick bamboo, power section of thick bamboo and rigid coupling have round drive gear are stretched out to rotatory pipe box one end wherein, the rigid coupling has motor support on the hard tube to be fixed with the motor on motor support, be fixed with power gear on the output shaft of this motor, power gear and drive gear meshing.
The last elastic support seat that has the heliciform and arrange of power section of thick bamboo, a plurality of power brushes fix in proper order in the elastic support seat and the protruding power barrel of power brush body, the elastic support seat includes hollow mount pad, supporting spring has been placed in the mount pad one end opening and the mount pad outwards, the power brush includes the backup pad and fixes the brush hair in one of them side of backup pad, backup pad opposite side rigid coupling threaded rod, the threaded rod is fixed in the screw thread hole of screw thread seat one end, screw thread seat other end extension bar one end stretches into the interior compression supporting spring of mount pad, round spacing ring and spacing ring are established in the mount pad in the screw thread seat outside, the opening part of mount pad is equipped with the inside out limit structure of restriction spacing ring.
The invention adopts the combination of electric drive and the dust collector, thereby solving the problem of environmental pollution caused by smoke dust cleaning, greatly reducing the labor cost and greatly improving the production efficiency.
Drawings
The following is a brief description of the contents of each figure and the symbols in the figures in the description of the invention:
FIG. 1 is a schematic structural view of a boiler flue cleaning apparatus;
FIG. 2 is a schematic view of an elastic support seat;
the labels in the above figures are: 1. a hard tube; 2. an upper cover; 3. a base plate; 4. a circular support; 5. an annular brush; 6. a contact switch; 7. a side support arm; 8. cleaning the brush; 9. a roller; 10. a power cylinder; 11. a drive gear; 12. a power gear; 13. a powered brush; 14. a hose; 15. a mounting seat; 16. a support spring; 17. a threaded seat; 18. a threaded rod.
Detailed Description
The following description of the embodiments with reference to the drawings is provided to describe the embodiments of the present invention, and the embodiments of the present invention, such as the shapes and configurations of the components, the mutual positions and connection relationships of the components, the functions and working principles of the components, the manufacturing processes and the operation and use methods, etc., will be further described in detail to help those skilled in the art to more completely, accurately and deeply understand the inventive concept and technical solutions of the present invention.
The boiler flue cleaning equipment is equipment which extends into a flue and cleans the inner wall of the flue, the equipment is provided with a hard pipe 1, the hard pipe 1 is a cylindrical metal pipe, one end of the hard pipe is connected with a hose 14, the outer end of the hose 14 is connected with an air inlet of dust collection equipment (a dust collector) and can collect the cleaned furnace dust, and the other end of the hard pipe 1 is fixed with a dust collection structure.
The dust collection structure is a disc dust absorption mouth, including circular shape upper cover 2 and circular shape bottom plate 3, the external diameter of upper cover 2 and bottom plate 3 is almost big, connect through vertical connecting rod between upper cover 2 and the bottom plate 3, inside is a cavity for the cavity, preferential upper cover 2 is to 1 convex circular truncated cone form panel of direction of hard tube, bottom plate 3 is circular flat board, 2 marginal domatic can let the stove ash that falls down slide to the dust absorption mouth department at edge of circular truncated cone's upper cover, the edge of upper cover 2 and bottom is whole circular shape side direction dust absorption mouth, the upper cover 2 of circular truncated cone also can make dust absorption mouth department clearance narrow in addition, help improving suction. The other end of the hard tube 1 is vertically fixed at the central position of the upper cover 2, the hard tube 1 is communicated with the cavity between the upper cover 2 and the bottom plate 3, and dust is sucked outwards from the dust suction port through dust suction equipment.
In order to avoid interference, the edge of the upper cover 2 and the edge of the bottom plate 3 need to form a gap with the inner wall of the flue which is matched with the upper cover 2 and the bottom plate 3, namely the inner diameter of the flue needs to print the outer diameters of the upper cover 2 and the bottom plate 3, when the suction force of the dust collection equipment is insufficient or the dust falling is excessive at the same time, a large amount of dust can not be sucked away and falls to the bottom of the flue, therefore, a circle of circular support 4 is arranged at the gap between the edge of the upper cover 2 and the edge of the bottom plate 3, the circular support 4 can be fixed on the bottom plate 3 or the upper cover 2 through a support rod, gaps are respectively arranged at the edges of the circular support 4, the upper cover 2 and the circular support 4, and the circular support 4 are respectively provided with a gap, the circular support 4 is suspended and fixed at the gap (dust collection opening) between the edge of the upper cover 2 and the edge of, also can contact the dust that falls, make things convenient for the dust absorption mouth dust absorption, and two-layer brush hair design has also divided into the dust absorption mouth two-layerly, and the brush hair contact most dust on upper strata (circular support 4) for upper strata dust absorption mouth inhales most dust, and lower floor (on the bottom) brush hair is as the protective layer, will lack the dust that is not inhaled and catch, thereby can make the dust absorption volume can be close the dust volume that whole clearance got off.
The device for cleaning the inner wall of the flue is fixed on a hard tube 1, a bearing is fixed on the hard tube 1, the bearing is fixedly connected with side support arms 7 which extend towards two sides and are vertical to the hard tube 1, the two side support arms 7 have the same structure and are coaxial, namely, on the same axis, the axis is vertical to the axis of the hard tube 1, the side support arms 7 are rod-shaped structures, as shown in figure 2, the inside of the rod-shaped structure is hollow, the outer end of the rod-shaped structure is open, a spring is arranged in the rod-shaped structure, one end of an extension rod extends into the rod-shaped structure to compress the spring, the other end of the extension rod extends out of the rod-shaped structure and is used for fixing a wheel carrier or driving a motor for rotating a cleaning brush 8, a convex limit ring is arranged in the rod-shaped structure, an inward flanging structure for limiting the limit ring is arranged at the opening of the rod-shaped structure, and, cleaning brush 8 and flue inner wall in close contact with can improve clean effect, and gyro wheel 9 and flue inner wall in close contact with can improve the frictional force of gyro wheel 9 and flue inner wall for gyro wheel 9 promotes bearing pivoted revolving force output more reliable.
As described above, the end of one of the side support arms 7 is fixed with the cleaning brush 8 rotated by the motor, and the end of the other side support arm 7 is fixed with the roller 9 rotated by the motor. The roller 9 is fixed on the wheel carrier through the wheel shaft, the wheel shaft is parallel to the hard tube 1, the wheel carrier is fixed with a motor for driving the wheel shaft to rotate, the roller 9 is fixedly connected on the wheel shaft, the distance (rotation radius) from the axis of the hard tube 1 to the outer end of the roller 9 is slightly larger than the inner wall of the flue, the roller 9 can be in close contact with the inner wall of the flue through a compression spring, the cleaning brush 8 comprises a support plate and brush bristles fixed on the outer side surface of the support plate, the inner side surface of the support plate is fixed on the output shaft of the motor, the output shaft of the motor for driving the cleaning brush 8 to rotate is coaxial with the side support arms 7, similarly, the distance (rotation radius) from the axis of the hard tube 1 to the outer end of the cleaning brush 8 is slightly larger than the inner wall of the flue, the cleaning brush 8 can be in close contact with the inner wall of, the dust rubbed down falls to the lower dust suction opening or the upper cover 2 and is sucked away by the dust suction device.
The drive circuit of above-mentioned two electrodes can set up externally, and signal line and power cord extend to motor department through hose 14 and hard tube 1, belongs to prior art to the drive of motor, and it is not being repeated here to describe, and the bottom surface of bottom plate 3 is fixed with touch switch 6, and touch switch 6 can sense whether cleaning equipment is clean to the bottom, can be used to intelligent control, and touch switch 6's signal line extends to drive circuit through hose 14 and hard tube 1.
The cleaning equipment can only clean in a single layer, a push rod (long rod) is required to contact a certain position of the hard tube 1 during use, the flue is slowly pushed downwards or pulled outwards manually, the intelligentization is low, therefore, the cleaning equipment is not optimized, and a set of automatic implementation structure running along the flue is designed.
The implementation structure automatically running along the flue is fixed on a bearing group on the hard pipe 1, the bearing group comprises at least two bearings, the side supporting rod is positioned between the implementation structure automatically running along the flue and the upper cover 2, a rotary pipe sleeve is fixedly connected outside the bearing group, the rotary pipe sleeve is fixedly connected with each bearing of the bearing group, a power cylinder 10 is fixedly connected outside the rotary pipe sleeve, the power cylinder 10 is a cylindrical hollow cylindrical structure, the hollow structure can reduce the weight of equipment and provide the flexibility of the equipment, a power brush 13 spirally arranged is fixed on the power cylinder 10, when the power brush 13 spirally arranged contacts the inner wall of the flue, a spiral feeding mechanism is formed, and the cleaning equipment can reciprocate along the flue by controlling the rotation of the power cylinder 10.
One end of the rotating pipe sleeve extends out of the power cylinder 10 and is fixedly connected with a circle of driving gear 11, the hard pipe 1 is fixedly connected with a motor support, a motor is fixed on the motor support, a power gear 12 is fixed on an output shaft of the motor, the power gear 12 is meshed with the driving gear 11, and then a motor mechanism is arranged, and the motor can also be connected with a driving mechanism.
The power barrel 10 is provided with an elastic supporting seat which is spirally arranged, as shown in fig. 2, a plurality of power brushes 13 are sequentially fixed in the elastic supporting seat, the body of each power brush 13 protrudes out of the power barrel, each independent power brush 13 is convenient to replace and maintain, each elastic supporting seat comprises a hollow mounting seat 15, one end of each mounting seat 15, facing outwards, is opened, a supporting spring 16 is placed in each mounting seat 15, each power brush 13 comprises a supporting plate and bristles fixed on one side of each supporting plate, a threaded rod 18 is fixedly connected to the other side of each supporting plate, the threaded rod 18 is fixed in a threaded hole in one end of each threaded seat 17, one end of an extension rod at the other end of each threaded seat 17 extends into each mounting seat 15 to compress each supporting spring 16, a circle of limiting rings are arranged on the outer side of each threaded seat 17 and are arranged in each mounting seat 15, an inward flanging knot for limiting, when the power brush is put in, each power brush 13 can be tightly contacted with the inner wall of the flue by slightly pressing the supporting spring 16, so that the friction force between the power brush and the inner wall of the flue is improved.
The power brush 13 in the invention can not only provide power for equipment movement, but also perform secondary cleaning on the inner wall of the flue, and is beneficial to improving the cleaning effect of the equipment.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (7)
1. The utility model provides a boiler flue cleaning equipment which characterized in that: equipment is equipped with the hard tube, hose connection dust extraction is passed through to hard tube one end, the hard tube other end is fixed with dust collection structure, dust collection structure includes circular shape upper cover and circular shape bottom plate, the cavity has between upper cover and the bottom plate, the edge of upper cover and the edge of bottom plate have the round clearance that is used for the dust absorption, the other end vertical fixation of hard tube puts at the central point of upper cover, cavity intercommunication between hard tube and upper cover, the bottom plate, be fixed with the bearing on the hard tube, the outer rigid coupling of bearing extend to both sides and with hard tube vertically collateral branch supporting arm, one of them collateral branch supporting arm end fixing has by the rotatory clean brush of motor drive, another collateral branch supporting arm end fixing has by the rotatory gyro wheel of motor drive.
2. The boiler flue cleaning apparatus according to claim 1, wherein: the brush structure is characterized in that a circle of circular support is arranged at the gap between the edge of the upper cover and the edge of the bottom plate, gaps are formed between the circular support and the edge of the upper cover and between the circular support and the edge of the bottom plate, and brush structures extending outwards are arranged on the edge of the bottom plate and the circular support.
3. The boiler flue cleaning apparatus according to claim 2, wherein: the upper cover is a truncated cone-shaped plate protruding towards the direction of the hard tube, the bottom plate is a circular flat plate, and a contact switch is fixed on the bottom surface of the bottom plate.
4. The boiler flue cleaning apparatus according to claim 1, 2 or 3, wherein: the roller is fixed on the wheel carrier through the wheel shaft, the wheel shaft is parallel to the hard tube, the wheel carrier is fixedly provided with a motor for driving the wheel shaft to rotate, the roller is fixedly connected on the wheel shaft, the cleaning brush comprises a supporting plate and brush bristles fixed on the outer side surface of the supporting plate, the inner side surface of the supporting plate is fixed on an output shaft of the motor, the output shaft of the motor for driving the cleaning brush to rotate is coaxial with the side supporting arms, and the two side supporting arms are coaxial.
5. The boiler flue cleaning apparatus according to claim 4, wherein: the collateral branch braced arm is shaft-like structure, shaft-like structure's inside cavity and outer end opening, the spring has been placed in the shaft-like structure, extension rod one end stretches into the interior compression spring of shaft-like structure, and the other end stretches out shaft-like structure and is used for fixed wheel carrier or the clean brush pivoted motor of drive, the extension rod middle part is equipped with convex spacing ring and spacing ring in shaft-like structure, the opening part of shaft-like structure is equipped with the interior turn-ups structure of restriction spacing ring.
6. The boiler flue cleaning apparatus according to claim 1 ohm 5, wherein: be fixed with the bearing group on the hard tube, it is fixed the bearing of collateral branch vaulting pole is located between upper cover and the bearing group, the outer rigid coupling of bearing group has rotatory pipe box, the outer rigid coupling of rotatory pipe box has a power section of thick bamboo, the power brush that fixed heliciform arranged on the power section of thick bamboo, power section of thick bamboo and rigid coupling have round drive gear are stretched out to rotatory pipe box one end wherein, the rigid coupling has motor support on the hard tube to be fixed with the motor on motor support, be fixed with power gear on the output shaft of this motor, power gear and drive gear meshing.
7. The boiler flue cleaning apparatus according to claim 6, wherein: the last elastic support seat that has the heliciform and arrange of power section of thick bamboo, a plurality of power brushes fix in proper order in the elastic support seat and the protruding power barrel of power brush body, the elastic support seat includes hollow mount pad, supporting spring has been placed in the mount pad one end opening and the mount pad outwards, the power brush includes the backup pad and fixes the brush hair in one of them side of backup pad, backup pad opposite side rigid coupling threaded rod, the threaded rod is fixed in the screw thread hole of screw thread seat one end, screw thread seat other end extension bar one end stretches into the interior compression supporting spring of mount pad, round spacing ring and spacing ring are established in the mount pad in the screw thread seat outside, the opening part of mount pad is equipped with the inside out limit structure of restriction spacing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910962739.3A CN110617494B (en) | 2019-10-11 | 2019-10-11 | Boiler flue cleaning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910962739.3A CN110617494B (en) | 2019-10-11 | 2019-10-11 | Boiler flue cleaning equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110617494A true CN110617494A (en) | 2019-12-27 |
| CN110617494B CN110617494B (en) | 2024-09-03 |
Family
ID=68925709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910962739.3A Active CN110617494B (en) | 2019-10-11 | 2019-10-11 | Boiler flue cleaning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110617494B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113500061A (en) * | 2021-07-15 | 2021-10-15 | 西北核技术研究所 | Pipeline cleaning device and method for cleaning metal dust |
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| CN113500061A (en) * | 2021-07-15 | 2021-10-15 | 西北核技术研究所 | Pipeline cleaning device and method for cleaning metal dust |
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| Publication number | Publication date |
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| CN110617494B (en) | 2024-09-03 |
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