CN214260706U - Centrifugal spray drying system - Google Patents

Abstract

The utility model provides a centrifugal spray drying system, which comprises an air filter, a blower and a hot blast stove, the drying box comprises a drying box body, a cyclone separator, a dust remover and an induced draft fan, wherein a first dehumidification pipe is installed at an air outlet of an air filter in a threaded mode, calcium chloride particles are filled in the first dehumidification pipe, the air blower is connected to an air outlet of the first dehumidification pipe through a pipeline, a second dehumidification pipe is installed at an air outlet of a hot blast stove in a threaded mode, activated carbon particles are filled in the second dehumidification pipe, an air distributor is installed above the drying box body and connected to an air outlet of the second dehumidification pipe through a pipeline, an air outlet of the air distributor leads into the drying box body, a centrifugal atomizer is installed above the drying box body, a generating end of the centrifugal atomizer is arranged in the drying box body, a volute heat transfer pipe is installed between the drying box body and the cyclone separator through a pipeline, and a filtering cloth bag is installed in the dust remover; the device carries out dehumidification treatment on the air twice, so that the air entering the drying box is kept dry.

Description

Centrifugal spray drying system

Technical Field

The utility model belongs to the technical field of centrifugal drying equipment, concretely relates to centrifugal spray drying system.

Background

A spray drier for drying and granulating simultaneously features that the pressure, flow and spray hole size of feed liquid pump can be regulated according to technological requirement to obtain needed spherical particles with a certain size ratio, and is suitable for atomizing the solution, suspension, paste and colloid materials into liquid by three atomizers and spraying it directly into tower body, where the dispersed liquid is suspended in hot air flow to accelerate and convey the wet material.

The drying system in the prior art usually directly heats air and then introduces the air into a drying box, heats and atomizes materials into liquid and then prepares material particles. Patent application No. CN201920066665.0, the contents of which are: the utility model discloses a centrifugation spray drying system belongs to drying equipment technical field. Centrifugal spray drying system includes spray drying device, cyclone, tail gas dust remover, air heating filter equipment and feed arrangement, spray drying device's feed inlet with feed arrangement's discharge gate pass through the pipeline and link to each other, spray drying device's air inlet and air heating filter equipment's gas outlet pass through the pipeline and link to each other, spray drying device's bottom right side gas outlet with cyclone's air inlet pass through the pipeline and link to each other, cyclone pass through the draught fan and link to each other with the tail gas dust remover. The centrifugal spray drying system has good drying effect, can prevent wall adhesion, and effectively avoids accidents such as dust explosion, material ignition, product pollution and the like.

Above-mentioned patent can't be to the moisture dehumidification in the air, and moisture and material mix dilution material concentration easily, efficiency and the efficiency of material heating when also influencing the air heating, and the separation is unclean during the leftover material dust in the separator separation air, causes the material along with air escape, causes the extravagant and polluted environment's of material problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem that above-mentioned background art provided, provide following technical scheme:

the utility model provides a centrifugation spray drying system, includes air cleaner, air-blower, hot-blast furnace, drying cabinet, cyclone, dust remover and draught fan, air cleaner, air-blower, hot-blast furnace, drying cabinet, cyclone, dust remover and draught fan connect gradually through the pipeline, first dehumidification pipe is installed to air cleaner's air outlet department screw thread, calcium chloride granule is equipped with in the first dehumidification pipe, the air-blower passes through the pipe connection on the air outlet of first dehumidification pipe, the second dehumidification pipe is installed to the air outlet screw thread of hot-blast furnace, the active carbon granule is equipped with in the second dehumidification pipe, air distributor is installed to the drying cabinet top, air distributor is on the air outlet of second dehumidification pipe through pipe connection, the filter hopper is installed in first dehumidification pipe and the embedding of second dehumidification pipe both ends, air distributor's air outlet accesss to in the drying cabinet, the centrifugal atomizer is installed above the drying box, the generating end of the centrifugal atomizer is arranged in the drying box, a volute heat transfer pipe is installed between the drying box and the cyclone separator through a pipeline, a filter cloth bag is installed in the dust remover, and the bag opening of the filter cloth bag is connected to the air inlet of the dust remover to filter dust.

Preferably, the cross section of the volute heat transfer pipe is of a volute structure, and the outer side of the volute heat transfer pipe is wrapped with an electric heating wire through a heat insulation layer.

Preferably, the lower part of the drying box is a conical box body, and the conical angle of the conical surface is 55 degrees.

Preferably, a plurality of air hammers are installed on the inner side wall of the upper portion of the drying box.

Preferably, quick-opening valves are mounted at the lower ends of the drying box, the cyclone separator and the dust remover.

Preferably, an exhaust chimney is further installed at the air outlet at the upper end of the induced draft fan.

Preferably, the first dehumidification pipe and the second dehumidification pipe are both oval glass pipes.

Preferably, the hot blast stove is a gas hot blast stove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the system is provided with the first dehumidification pipe and the second dehumidification pipe, calcium chloride particles and activated carbon particles are added into the two dehumidification pipes respectively, the calcium chloride particles are high in water absorption and not easy to be heated at high temperature, so that the system has good dehumidification performance on normal-temperature air, the activated carbon particles are stable and can be used for dehumidifying residual moisture in the heated air, and the two dehumidification pipes are glass pipes, so that the moisture saturation condition in the pipe body can be observed conveniently, and the system can be monitored and replaced in time;

2. the system is provided with the volute heat transfer pipe, so that after materials are atomized by hot air, large-particle materials are directly discharged from the bottom of the drying box, and the rest air with a small amount of material particles cannot be condensed into dropping liquid to return to the drying box when entering the separator through a pipeline, so that the cleanness of the drying box is ensured; the outer side of the spiral case heat transfer pipe is wrapped with the electric heating wire and the heat preservation and insulation layer, so that air is not condensed due to cooling, the air can be completely fed into the separator through the action of the draught fan to filter material particles in the air, and the filter cloth bag has the advantages of good filtering effect, low cost and easiness in replacement and cleaning;

3. the system is also provided with a plurality of quick-opening valves, so that unloading is facilitated, cleaning can be performed at any time, and cleanness in the drying system is guaranteed;

4. the system is provided with the gas hot blast stove, the gas combustion cost is lower than the existing electric heating and coal heating cost, and combustion products can not generate gas which pollutes the environment and is harmful to human health, the automation degree is high, and the environmental protection property is good.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural view of a drying box in an embodiment of the present invention;

fig. 3 is a schematic structural view of a first dehumidification pipe in an embodiment of the present invention;

FIG. 4 is a schematic structural view of a spiral casing heat transfer pipe according to an embodiment of the present invention;

the embodiment of the utility model provides a mainly contain following element symbol:

the device comprises an air filter-1, a first dehumidification pipe-101, calcium chloride particles-102, a blower-2, a hot blast stove-3, a second dehumidification pipe-301, activated carbon particles-302, a filter hopper-4, a drying box-5, an air hammer-501, an air distributor-6, a centrifugal atomizer-7, a volute heat transfer pipe-8, an electric heating wire-801, a heat preservation and insulation layer-802, a cyclone separator-9, a dust collector-10, a filter cloth bag-1001, an induced draft fan-11, an exhaust chimney-1101 and a quick-opening valve-12.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

As shown in fig. 1 and 2, a centrifugal spray drying system, includes air cleaner 1, air-blower 2, hot-blast furnace 3, drying cabinet 5, cyclone 9, dust remover 10 and draught fan 11, air cleaner 1, air-blower 2, hot-blast furnace 3, drying cabinet 5, cyclone 9, dust remover 10 and draught fan 11 connect gradually through the pipeline, first dehumidification pipe 101 is installed to air outlet department screw thread of air cleaner 1, calcium chloride granule 102 is equipped with in the first dehumidification pipe 101, air-blower 2 passes through the pipe connection on the air outlet of first dehumidification pipe 101, second dehumidification pipe 301 is installed to the air outlet screw thread of hot-blast furnace 3, active carbon granule 302 is equipped with in the second dehumidification pipe 301, air distributor 6 is installed to 5 tops of drying cabinet, air distributor 6 is through pipe connection to the air outlet of second dehumidification pipe 301, filter 4 is installed in first dehumidification pipe 101 and the equal embedding in second dehumidification pipe 301 both ends, air distributor 6's air outlet accesss to in the drying cabinet 5, centrifugal atomizer 7 is installed to 5 tops of drying cabinet, centrifugal atomizer 7's emergence end sets up in drying cabinet 5, there is spiral case heat-transfer pipe 8 through the pipe installation between drying cabinet 5 and the cyclone 9, install in the dust remover 10 and filter sack 1001, the sack of filtering sack 1001 is connected and is being strained the dirt in the air inlet department of dust remover 10.

This system sets up first dehumidification pipe 101 and second dehumidification pipe 301, add calcium chloride granule 102 and active carbon granule 302 in two dehumidification pipes respectively, calcium chloride granule 102 hydroscopicity is strong, be difficult for high temperature, consequently, have good dehumidification to normal atmospheric temperature air, active carbon granule 302 is stable, can be used to the dehumidification of surplus moisture in the air after the heating, and two dehumidification pipes all are the glass pipe, conveniently observe the interior moisture saturation condition of body, can monitor in time to change.

As shown in fig. 4, the cross section of the spiral case heat transfer pipe 8 is of a spiral case structure, the outer side of the spiral case heat transfer pipe 8 is wrapped by an electric heating wire 801 through a heat insulation layer 802, the system is provided with the spiral case heat transfer pipe 8, so that after materials are atomized through hot air, large particles of the materials are directly discharged through the bottom of the drying box 5, and the rest air with a small amount of material particles cannot be condensed into dropping liquid to return to the drying box 5 when entering a separator through a pipeline, so that the cleanness of the drying box 5 is ensured; and the outer side of the volute heat transfer pipe 8 is wrapped with an electric heating wire 801 and a heat insulation layer 802, so that air cannot be condensed due to cooling, the air can be completely filtered from material particles in the air to the separator through the action of the draught fan 11, and the filter cloth bag 1001 is good in filtering effect, low in cost and easy to replace and clean.

The lower part of the drying box 5 is a conical box body, the cone angle of the conical surface is 55 degrees, the cone angle is large, so that the bottom of the drying box 5 is deep, and the atomization space of materials is increased.

A plurality of air hammers 501 are arranged on the inner side wall of the upper part of the drying box 5.

Quick-opening valves 12 are installed at the lower ends of the drying box 5, the cyclone separators 9 and the dust remover 10, and the system is further provided with a plurality of quick-opening valves 12, so that the drying box can be cleaned at any time when being unloaded conveniently, and cleanness in the drying system is guaranteed.

An exhaust chimney 1101 is further installed at an air outlet at the upper end of the induced draft fan 11; as shown in fig. 3, the first and second dehumidifying pipes 101 and 301 are each an elliptical glass pipe.

The hot-blast furnace 3 is the gas hot-blast furnace, and this system sets up gas hot-blast furnace 3, and the gas combustion cost is with low costs than current electrical heating and coal heating, and the combustion product can not produce polluted environment and harmful human health's gas, and degree of automation is high, and the feature of environmental protection is good.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (8)

1. The utility model provides a centrifugal spray drying system, includes air cleaner (1), air-blower (2), hot-blast furnace (3), drying cabinet (5), cyclone (9), dust remover (10) and draught fan (11), air cleaner (1), air-blower (2), hot-blast furnace (3), drying cabinet (5), cyclone (9), dust remover (10) and draught fan (11) connect gradually its characterized in that through the pipeline: first dehumidification pipe (101) is installed to the screw thread of air outlet department of air cleaner (1), calcium chloride granule (102) are equipped with in first dehumidification pipe (101), air-blower (2) are connected on the air outlet of first dehumidification pipe (101) through the pipeline, second dehumidification pipe (301) are installed to the air outlet screw thread of hot-blast furnace (3), active carbon granule (302) are equipped with in second dehumidification pipe (301), air distributor (6) are installed to drying cabinet (5) top, air distributor (6) are connected to on the air outlet of second dehumidification pipe (301) through the pipeline, filter hopper (4) are all installed in embedding in first dehumidification pipe (101) and second dehumidification pipe (301) both ends, the air outlet of air distributor (6) accesss to in drying cabinet (5), centrifugal atomizer (7) are installed to drying cabinet (5) top, the dust filter is characterized in that the generation end of the centrifugal atomizer (7) is arranged in the drying box (5), a volute heat transfer pipe (8) is installed between the drying box (5) and the cyclone separator (9) through a pipeline, a filter cloth bag (1001) is installed in the dust collector (10), and the bag opening of the filter cloth bag (1001) is connected to the dust filter at the air inlet of the dust collector (10).

2. The drying system of claim 1, wherein: the cross section of the volute heat transfer pipe (8) is of a volute structure, and the outer side of the volute heat transfer pipe (8) is wrapped with an electric heating wire (801) through a heat insulation layer (802).

3. The drying system of claim 2, wherein: the lower part of the drying box (5) is a conical box body, and the cone angle of the conical surface is 55 degrees.

4. The drying system of claim 3, wherein: and a plurality of air hammers (501) are arranged on the inner side wall of the upper part of the drying box (5).

5. The drying system of claim 4, wherein: the lower ends of the drying box (5), the cyclone separator (9) and the dust remover (10) are all provided with quick-opening valves (12).

6. The drying system of claim 5, wherein: an exhaust chimney (1101) is further installed at the air outlet at the upper end of the induced draft fan (11).

7. The drying system of claim 6, wherein: the first dehumidification pipe (101) and the second dehumidification pipe (301) are both oval glass pipes.

8. The drying system of claim 7, wherein: the hot blast stove (3) is a gas hot blast stove.

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