CN116688700A - Dust and smoke explosion-proof purification system for livestock feed processing - Google Patents
Dust and smoke explosion-proof purification system for livestock feed processing Download PDFInfo
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- CN116688700A CN116688700A CN202310935261.1A CN202310935261A CN116688700A CN 116688700 A CN116688700 A CN 116688700A CN 202310935261 A CN202310935261 A CN 202310935261A CN 116688700 A CN116688700 A CN 116688700A
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- dust
- gas
- filter screen
- housing
- spray
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- 239000000428 dust Substances 0.000 title claims abstract description 72
- 244000144972 livestock Species 0.000 title claims abstract description 30
- 238000000746 purification Methods 0.000 title claims abstract description 26
- 239000000779 smoke Substances 0.000 title claims abstract description 24
- 239000007921 spray Substances 0.000 claims abstract description 99
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000003595 mist Substances 0.000 claims abstract description 20
- 238000004880 explosion Methods 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims description 81
- 238000000926 separation method Methods 0.000 claims description 34
- 238000005507 spraying Methods 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000003546 flue gas Substances 0.000 claims description 3
- 244000144977 poultry Species 0.000 claims description 2
- 239000003517 fume Substances 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 27
- 239000002245 particle Substances 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/72—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with backwash arms, shoes or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/79—Regeneration of the filtering material or filter elements inside the filter by liquid process
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
According to the dust and smoke explosion-proof purification system for livestock feed processing, provided by the embodiment of the application, the filter screen and the alternately intermittently operated spray assembly are arranged, so that on one hand, impurity particles in dust-containing gas can be mixed with water mist, small-particle impurities are adhered to be large-particle impurities, the dust removal effect is improved, and meanwhile, the dust particles are adhered to be large, so that the risk of dust explosion is reduced; on the other hand, the filter screen can be intermittently backwashed and cleaned, and the central area of the filter screen always sprays water mist, so that the dust removal vacuum period is avoided, and the risk of blocking the filter screen is reduced.
Description
Technical Field
The application relates to the technical field of gas filtration, in particular to a dust and smoke explosion-proof purification system for livestock feed processing.
Background
During the processing of livestock feed, the raw materials are generally crushed and smashed to be small particles or powder so as to facilitate the subsequent processing. During the crushing and pulverizing process of the raw materials, a large amount of dust particles are usually generated, and since the feed processing is usually performed in a dry environment, the dust particles are extremely liable to cause dust explosion.
Based on this, in the related art, in order to avoid dust explosion during processing, the following solutions are proposed: as described in chinese patent CN113599918B, combustion after dust collection should be prevented; as described in chinese patent CN 110538539B: the temperature inside the case is detected by the temperature sensor, and when the temperature is too high, water is sprayed into the case, so that explosion is timely avoided. Therefore, dust can be treated by spraying dust fall in the dust falling device, on one hand, the device can be effectively cooled, on the other hand, dust can be prevented from being ignited after being collected, but after dust spraying, the dust is easy to adhere to a filter screen and is difficult to clean, and meanwhile, the sprayed air contains a large amount of moisture, so that if the dust is directly discharged into a livestock feed processing factory, the feed, raw materials for producing the feed and the like are easily affected with damp.
Disclosure of Invention
Based on the problems that a filter screen is difficult to clean and feed is easy to wet existing in the conventional livestock feed processing equipment are necessary, the dust and smoke explosion-proof purification system for livestock feed processing is provided.
The above purpose is achieved by the following technical scheme:
the utility model provides a poultry is dust and flue gas explosion-proof clean system for feed processing, it includes shell, filter screen and spray subassembly, the filter screen with spray subassembly set up in inside the shell, along the direction of gas flow in the shell spray subassembly set up in the low reaches of filter screen, spray subassembly includes a plurality of first shower nozzles and a plurality of second shower nozzles, a plurality of first shower nozzles and a plurality of second shower nozzles all set up around first axis interval, first shower nozzle compare the second shower nozzle is close to first axis sets up; the spray assembly is provided with a dust removing stage and a backflushing stage which are alternately performed, in the dust removing stage, the first spray head and the second spray head spray water-containing gas to the filter screen, in the backflushing stage, the first spray head sprays water-containing gas to the filter screen, and the second spray head sprays gas to the filter screen.
In one embodiment, the second spray head includes a second spray head to spray water or an aqueous gas and a second spray head to spray a gas.
In one embodiment, the number of the filter screens and the number of the spraying components are at least two, the filter screens and the spraying components are arranged in a one-to-one correspondence manner, and the filtering energy efficiency of the filter screens is gradually improved along the flowing direction of the gas in the shell.
In one embodiment, the spray volume or the spray volume of the spray assembly is gradually reduced along the flow direction of the gas in the housing.
In one embodiment, the device further comprises a circulation assembly for recovering and discharging the gas discharged from the housing into the spray assembly.
In one embodiment, the circulation assembly includes a separation module disposed at the gas outlet of the housing, the separation module separating the target gas from the gas exhausted from the gas outlet.
In one embodiment, the separation module comprises a separation shell, guide vanes, a collection cavity, a flow baffle, an air inlet and an air outlet, wherein the air inlet is communicated with the air outlet hole of the shell, air flowing in from the air inlet flows to the guide vanes and flows in a spiral path under the guide action of the guide vanes on the inner wall of the separation shell, the collection cavity is arranged at the bottom of the separation shell, the flow baffle is arranged inside the separation shell, and the flow baffle shields the air outlet along the horizontal direction.
In one embodiment, the circulation assembly comprises an air pump, a mist pump, a valve group and a connecting pipeline, wherein the connecting pipeline is used for connecting the shell with the air pump and the mist pump, the air pump is used for pumping gas into the shell, the mist pump is used for pumping doping gas into the shell, and the valve group is used for switching connecting loops of the first spray head, the second spray head, the air pump and the mist pump.
In one embodiment, the housing peripheral wall is provided with a collecting ring, which is arranged close to the sieve and below the sieve.
In one embodiment, the collection ring is removably attached to the housing.
The beneficial effects of the application are as follows:
according to the dust and smoke explosion-proof purification system for livestock feed processing, provided by the embodiment of the application, the filter screen and the alternately intermittently operated spray assembly are arranged, so that on one hand, impurity particles in dust-containing gas can be mixed with water mist, small-particle impurities are adhered to be large-particle impurities, the dust removal effect is improved, and meanwhile, the dust particles are adhered to be large, so that the risk of dust explosion is reduced; on the other hand, the filter screen can be intermittently backwashed and cleaned, and the central area of the filter screen always sprays water mist, so that the dust removal vacuum period is avoided, and the risk of blocking the filter screen is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a dust and smoke explosion-proof purification system for livestock feed processing according to an embodiment of the application;
fig. 2 is a cross-sectional view of a dust and smoke explosion-proof purification system for livestock feed processing according to an embodiment of the application;
fig. 3 is a schematic structural diagram of a spray assembly in a dust and smoke explosion-proof purification system for livestock feed processing according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a separation module in a dust and smoke explosion-proof purification system for livestock feed processing according to an embodiment of the present application;
FIG. 5 is an enlarged view of a portion of the separation module of FIG. 4;
fig. 6 is a schematic structural diagram of a flow baffle in the dust and smoke explosion-proof purification system for livestock feed processing according to an embodiment of the present application;
fig. 7 is a cross-sectional view of a separation housing in a dust and smoke explosion-proof purification system for livestock feed processing according to an embodiment of the application.
Wherein:
100. a housing; 101. an air inlet hole; 102. an air outlet hole; 110. a collection ring; 200. a filter screen; 300. a spray assembly; 301. a first nozzle; 302. a second nozzle; 410. a separation module; 411. separating the shell; 412. a guide vane; 413. a collection chamber; 414. a flow baffle; 415. an air inlet; 416. an air outlet; 417. an adjusting ring; 418. a first connecting rod; 419. a second connecting rod; 420. a third connecting rod; 421. an air pump; 422. a mist pump; 423. and a connecting pipeline.
Detailed Description
The present application will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present application. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
The embodiment of the application provides a dust and smoke explosion-proof purification system for livestock feed processing, which is particularly suitable for air purification and dust explosion prevention during the livestock feed processing; it will be appreciated that it is equally applicable to other processing scenarios where dust particles are prone to be generated. The dust and smoke explosion-proof purification system for livestock feed processing is usually connected to feed processing equipment, and waste gas generated during feed processing is directly discharged or collected by a gas collecting device and then discharged into the dust and smoke explosion-proof purification system for livestock feed processing.
Specifically, as shown in fig. 1 to 7, the dust and smoke explosion-proof purification system for livestock feed processing in this embodiment includes a housing 100, a filter screen 200, and a spray assembly 300. The housing 100 is used to form a relatively isolated area for dust removal operation inside the housing 100, and the housing 100 is provided with an air inlet 101 at the top and an air outlet 102 at the bottom. The filter 200 is disposed inside the housing 100, in this embodiment, the housing 100 is in a shape of a rotator, the rotation axis of the housing 100 is a first axis, and the cross-section of the housing 100 is circular; the filter screen 200 is in a shape of a sphere, the filter screen 200 is coaxially arranged with the housing 100, the outer periphery of the filter screen 200 is attached to the inner peripheral wall surface of the housing 100, and the filter screen 200 protrudes toward the air inlet direction of the housing 100. Along the gas flow direction, the spray assembly 300 is disposed downstream of the filter screen 200, and the spray assembly 300 sprays gas or doping gas toward the filter screen 200, i.e. the gas or doping gas sprayed by the spray assembly 300 is opposite to the flow direction of the dust-containing gas in the housing 100. The spray assembly 300 includes a plurality of first spray heads 301 and a plurality of second spray heads 302, each of the plurality of first spray heads 301 and the plurality of second spray heads 302 being spaced about a first axis, the first spray heads 301 being disposed closer to the first axis than the second spray heads 302. The spray assembly 300 has alternately a dust removal stage in which the first spray head 301 and the second spray head 302 spray the aqueous gas toward the filter screen 200 and a back flushing stage in which the first spray head 301 sprays the aqueous gas toward the filter screen 200 and the second spray head 302 sprays the gas toward the filter screen 200. According to the position where the gas sprayed from the first spray head 301 and the second spray head 302 to the filter screen 200 flows through the filter screen 200, the filter screen 200 can be divided into a central area and an outer peripheral area, the gas or doping gas sprayed from the first spray head 301 always flows through the central area of the filter screen 200, and the gas or doping gas sprayed from the second spray head 302 always flows through the outer peripheral area of the filter screen 200. Because the gas or the doping gas always flows through the central area of the filter screen 200, the dust-containing gas cannot flow through the central area of the filter screen 200, the filter screen 200 at the central area cannot be blocked by impurities, and backflushing is not needed; the outer peripheral area of the filter screen 200 is intermittently passed through the filter screen 200 due to the intermittent passing of the gas or the impurity passing through the filter screen 200, and the impurity is blocked by the filter screen 200 to remain in the filter screen 200 or the area above the filter screen 200, and when the gas or the impurity passing through the filter screen 200 in the reverse direction of the flow direction of the dust-containing gas, the impurity remaining on the filter screen 200 can be washed away and blown to the junction of the inner peripheral wall of the housing 100 and the filter screen 200. In general, the doping gas is usually a water-gas mixture (water mist) which can be cohesively mixed with the impurities in the dust-containing gas and cause the small-particle impurities to be cohered as large-particle impurities; in some embodiments, the dopant gas may also include a dust-reducing adsorbent or catalyst to adsorb or catalyze the harmful impurities in the dust-containing gas.
Therefore, according to the dust and smoke explosion-proof purification system for livestock feed processing, provided by the embodiment of the application, through the arrangement of the filter screen 200 and the spray assembly 300 which alternately and intermittently works, on one hand, impurity particles in dust-containing gas can be mixed with water mist, so that small particle impurities are adhered to be large particle impurities, the dust removal effect is improved, and meanwhile, the risk of dust explosion is reduced due to the fact that the adhesion of the dust particles is enlarged; on the other hand, the filter screen 200 can be intermittently backwashed and cleaned, and the central area of the filter screen 200 always sprays water mist, so that a dust removal vacuum period is avoided, and the risk of the filter screen 200 being blocked is reduced.
In one embodiment of the present application, the second showerhead 302 includes a second spray head for spraying water or an aqueous gas and a second jet head for spraying a gas. When the second spray head sprays water, the second spray head is opened in the dust removal stage, the second spray head is opened or closed, and in the backflushing stage, the second spray head is closed and the second spray head is opened. When the second spray head sprays the water-containing gas, the second spray head is opened in the dust removal stage, the second spray head is closed, and in the backflushing stage, the second spray head is closed and the second spray head is opened. It will be appreciated that the first nozzle 301 may also include a first spray head for spraying water and a first jet head for spraying gas, both of which are always on.
In one embodiment of the present application, the number of the filter screen 200 and the spray assembly 300 is at least two, and the filter screen 200 and the spray assembly 300 are disposed in a one-to-one correspondence, so that the filtering energy efficiency of the filter screen 200 is gradually improved along the gas flowing direction in the housing 100. For convenience of description, the filter screen 200 near the air inlet of the housing 100 is referred to as a first filter screen, and the filter screen far from the air inlet of the housing 100 is referred to as a second filter screen, in this embodiment, the first filter screen and the second filter screen are both physical filter screens, and are both provided with a plurality of filter holes, impurities with a size larger than that of the filter holes cannot pass through the filter holes, and gas can normally pass through the filter holes. The pore diameter of the filtering holes of the first filtering net is larger than that of the second filtering net, and the first filtering net can block and filter impurities with larger sizes; when the dust-containing air after passing through the first filter screen flows through the second filter screen, the second filter screen can block and filter impurities with smaller size. By providing the two-stage filter screen 200, the filtering effect can be enhanced, and the clogging period of the filter screen 200 can be prolonged.
Further, to accommodate staged filtration of the first and second screens, the spray, water jet, or air jet of the spray assembly 300 at the first screen is greater than the spray, water jet, or air jet at the second screen. Generally, since the first filter screen filters impurities with larger size, the total mass and the number of the impurities are larger, and the water amount required for bonding the impurities is larger, the spraying amount or the spraying amount of the spraying assembly 300 at the first filter screen can be adjusted to be larger, so that the impurity characteristics at the first filter screen can be adapted.
In one embodiment of the present application, a circulation assembly is further included for recycling and discharging the gas exhausted from the housing 100 to the spray assembly 300. Generally, the circulation assembly is used for circulating water, and water in the housing 100 is generally injected from the outside to dust the inside; the water within the housing 100 has two flow directions: firstly, the waste water is bonded and combined with impurities to form large-particle sediments, and the large-particle sediments are collected and cleaned uniformly; but instead the filtered gas exits the housing 100. The circulating assembly is arranged, the discharged gas is recycled, the water discharged by the gas after filtering is reduced, and more water and impurities are uniformly collected and cleaned after being bonded. In particular, the circulation assembly is particularly necessary when the spray of spray assembly 300 contains a dust-reducing adsorbent or catalyst.
In one embodiment of the present application, the circulation assembly includes a separation module 410, the separation module 410 is disposed at the air outlet 102 of the housing 100, the separation module 410 separates the air discharged from the air outlet 102 from the water, and the air is directly discharged to the external environment, and the water is re-introduced into the spray assembly 300.
In one embodiment of the present application, the separation module 410 includes a separation housing 411, a guide vane 412, a collection chamber 413, a baffle 414, an air inlet 415 and an air outlet 416, wherein the air inlet 415 is connected to the air outlet 102 of the housing 100, the air flowing in from the air inlet 415 flows to the guide vane 412 and flows in a spiral path on the inner wall of the separation housing 411 under the guide action of the guide vane 412, the collection chamber 413 is disposed at the bottom of the separation housing 411, the baffle 414 is disposed inside the separation housing 411, and the baffle 414 shields the air outlet 416 along the horizontal direction. The gas filtered by the filter screen 200 in the housing 100 is discharged from the gas outlet hole 102, enters the separation housing 411 through the gas outlet 416 of the separation module 410, and flows on the inner wall of the separation housing 411 according to a spiral path by the guide vane 412. In this process, relatively large amounts of water adhere to the inner wall of the separation housing 411 and move down the inner wall of the separation housing 411 to the collection chamber 413, from the connection line 423 of the collection chamber 413 back to the spray assembly 300; the gas can flow from the gap between the baffle 414 and the gas outlet 416 to the gas outlet 102 due to the small mass, and be directly discharged to the outside. Since the gas outlet 416 is directly connected to the outside, most of the gas is discharged into the environment through the gas outlet 416, and a small portion of the gas flows to the connection pipe 423 of the collection chamber 413. The provision of the baffle 414 prevents the gas from flowing out of the gas outlet 416 when the distance of travel along the spiral path is short.
In one embodiment of the present application, the angle of the guide vane 412 is adjustable to change the helical path of the gas that is generated by the guide vane 412. Specifically, the separation module 410 further includes an adjusting ring 417, a first connecting rod 418, a second connecting rod 419 and a third connecting rod 420, where the adjusting ring 417 is disposed along an axis of the separation housing 411 and can move along an axial direction of the separation housing 411, one end of the first connecting rod 418 is fixedly connected to the adjusting ring 417, the other end is rotatably connected to the second connecting rod 419, one end of the second connecting rod 419 away from the first connecting rod 418 is rotatably connected to the third connecting rod 420, the third connecting rod 420 is telescopic, the third connecting rod 420 is L-shaped overall, one end of the third connecting rod 420 away from the second connecting rod 419 is rotatably connected to the baffle 414, and one end of the third connecting rod 420 away from the second connecting rod 419 is fixedly connected to the guide vane 412.
In one embodiment of the present application, the circulation assembly includes an air pump 421, a mist pump 422, a valve set, and a connection pipeline 423, the connection pipeline 423 is used to connect the housing 100 with the air pump 421 and the mist pump 422, the air pump 421 is used to pump air into the housing 100, the mist pump 422 is used to pump doping gas into the housing, and the valve set is used to switch the connection loops of the first nozzle 301, the second nozzle 302, the air pump 421 and the mist pump 422.
In one embodiment of the present application, the peripheral wall of the housing 100 is provided with a collecting ring 110, and the collecting ring 110 is disposed near the filter screen 200 and below the filter screen 200; as shown in fig. 2, the collecting ring 110 is shown in fig. 2, and a detachable collecting structure (not shown) is further provided on the collecting ring 110.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (10)
1. The utility model provides a poultry is dust and flue gas explosion-proof clean system for feed processing, its characterized in that includes shell, filter screen and spray subassembly, the filter screen with spray subassembly set up in inside the shell, along the direction of gas flow in the shell spray subassembly set up in the low reaches of filter screen, spray subassembly includes a plurality of first shower nozzles and a plurality of second shower nozzles, a plurality of first shower nozzles and a plurality of second shower nozzles all set up around first axis interval, first shower nozzle compare the second shower nozzle is close to first axis sets up; the spray assembly is provided with a dust removing stage and a backflushing stage which are alternately performed, in the dust removing stage, the first spray head and the second spray head spray water-containing gas to the filter screen, in the backflushing stage, the first spray head sprays water-containing gas to the filter screen, and the second spray head sprays gas to the filter screen.
2. A dust and smoke explosion protection purification system for livestock feed processing according to claim 1, wherein the second spray head comprises a second spray head for spraying water or an aqueous gas and a second spray head for spraying a gas.
3. The dust and smoke explosion-proof purification system for livestock feed processing according to claim 1, wherein the number of the filter screens and the number of the spraying components are at least two, the filter screens and the spraying components are arranged in one-to-one correspondence, and the filtering energy efficiency of the filter screens is gradually improved along the gas flow direction in the shell.
4. A dust and smoke explosion protection purification system for livestock feed processing according to claim 3, wherein the spray amount, water jet amount or air jet amount of the spray assembly is gradually reduced along the direction of the gas flow in the housing.
5. A dust and flue gas explosion protection purification system for livestock feed processing according to any of claims 1 to 4, further comprising a circulation assembly for recovering and discharging gas after discharge from the housing into the spray assembly.
6. A dust and smoke explosion protection purification system for livestock feed processing according to claim 5, wherein the circulation assembly comprises a separation module disposed at the air outlet of the housing, the separation module separating the target gas from the gas exiting the air outlet.
7. The dust and smoke explosion-proof purification system for livestock feed processing according to claim 6, wherein the separation module comprises a separation housing, guide vanes, a collection cavity, a flow baffle plate, an air inlet and an air outlet, wherein the air inlet is communicated with the air outlet hole of the housing, air flowing in from the air inlet flows to the guide vanes and flows in a spiral path on the inner wall of the separation housing under the guide action of the guide vanes, the collection cavity is arranged at the bottom of the separation housing, the flow baffle plate is arranged in the separation housing, and the flow baffle plate shields the air outlet along the horizontal direction.
8. A dust and smoke explosion protection purification system for livestock feed processing according to claim 5, wherein the circulation assembly comprises an air pump, a mist pump, a valve group and a connecting pipeline, wherein the connecting pipeline is used for connecting the housing with the air pump, the mist pump is used for pumping gas into the housing, the mist pump is used for pumping doping gas into the housing, and the valve group is used for switching the connecting loops of the first spray head, the second spray head, the air pump and the mist pump.
9. A dust and smoke explosion protection purification system for livestock feed processing according to any of claims 1-4, characterized in that the housing peripheral wall is provided with a collecting ring arranged close to the filter screen and below the filter screen.
10. A dust and fume explosion protection purification system for livestock feed processing according to claim 9, wherein said collection ring is removably connected to said housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310935261.1A CN116688700B (en) | 2023-07-28 | 2023-07-28 | Dust and smoke explosion-proof purification system for livestock feed processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310935261.1A CN116688700B (en) | 2023-07-28 | 2023-07-28 | Dust and smoke explosion-proof purification system for livestock feed processing |
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| Publication Number | Publication Date |
|---|---|
| CN116688700A true CN116688700A (en) | 2023-09-05 |
| CN116688700B CN116688700B (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310935261.1A Active CN116688700B (en) | 2023-07-28 | 2023-07-28 | Dust and smoke explosion-proof purification system for livestock feed processing |
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| CN115888363A (en) * | 2022-12-13 | 2023-04-04 | 湖南省楚雄环保科技有限公司 | Waste gas purification system that sprays in tower |
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|---|---|---|---|---|
| CN103757176A (en) * | 2014-01-26 | 2014-04-30 | 江苏博际环境工程科技有限公司 | Primary flue gas-coal gas dedusting and deep purification system of converter |
| CN109692772A (en) * | 2019-01-19 | 2019-04-30 | 常德市佳鸿机械有限责任公司 | A kind of suction mist filter device cleaning oiling machine production line |
| CN115888363A (en) * | 2022-12-13 | 2023-04-04 | 湖南省楚雄环保科技有限公司 | Waste gas purification system that sprays in tower |
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| CN116688700B (en) | 2023-09-29 |
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