CN219072451U - Waste gas treatment system for feed processing - Google Patents
Waste gas treatment system for feed processing Download PDFInfo
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- CN219072451U CN219072451U CN202223330396.5U CN202223330396U CN219072451U CN 219072451 U CN219072451 U CN 219072451U CN 202223330396 U CN202223330396 U CN 202223330396U CN 219072451 U CN219072451 U CN 219072451U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses an exhaust gas treatment system for feed processing, which comprises an air suction device connected with each production unit in the feed processing process, and also comprises an exhaust gas collecting chamber connected with the air suction device, a washing chamber connected with the exhaust gas collecting chamber, a spray chamber connected with the washing chamber, a high-altitude exhaust pipe connected with the top of the spray chamber, and a water treatment sedimentation device connected with the bottom of the washing chamber and the bottom of the spray chamber; a water curtain faucet forming a water curtain and a spray head forming spray water are arranged in the washing chamber, and an atomization spray nozzle forming atomization spray is arranged in the spray chamber; the height of the high-altitude exhaust barrel is 45 meters. The whole system uniformly collects and processes malodorous waste gas, achieves the effect of efficient and centralized processing, and can achieve waste gas processing of each process by one set of equipment, so that the layout of each production process of feed production is more reasonable, and the cost of waste gas processing is greatly reduced.
Description
Technical Field
The utility model relates to the technical field of waste gas treatment technology, in particular to a waste gas treatment system for carrying out harmless and pollution-free treatment on malodorous smell generated in the feed production process.
Background
At present, certain odor is generated in the feed processing process, wherein malodorous gas generated in the processes of puffing, curing, granulating, drying, air cooling and the like can cause malodorous pollution to the surrounding environment if directly discharged. In addition, malodor is emitted when raw materials and products are stored, but the malodor is relatively less; the method has the advantages that the raw materials are purchased according to the production conditions, so that the storage quantity of the raw materials and products in a factory is reduced as much as possible, the raw materials which are overdue and deteriorated are avoided, and the raw materials are prevented from being piled and sunned in the open air, so that the malodor pollution sources are prevented from being increased; the places such as a warehouse are subjected to closed and semi-closed management, so that the unorganized emission of waste gas is reduced; the operation standard of staff is improved, running, overflowing, dripping and leaking in the storage process are reduced, and unorganized emission is reduced. For malodorous gas generated in the feed processing process, the conventional treatment mode is to independently treat the waste gas generated in each production process link, the treatment process is generally filtration (including filtration adsorption modes such as a filter screen and active carbon) and then discharged outdoors, and the waste gas treatment mode has the following problems: (1) Each production procedure is provided with a set of independent treatment equipment, the independent treatment equipment cannot be concentrated together to perform unified treatment, the overall treatment cost is high, each set of independent equipment occupies independent field area, and each set of equipment is arranged in the field corresponding to the production process in a scattered manner, and the reasonable layout of the production field and the large field occupation area are not utilized. (2) The independent waste gas treatment device needs to use a plurality of sets of equipment, uses more parts, and generates great high cost for the maintenance and repair of later equipment. (3) The filter screen and/or the active carbon are/is adopted for main filtration and adsorption, the filter material is required to be replaced continuously, the service cycle is short, the replacement is frequent, the cost is high, the subsequent operation is complicated, and the replacement is very troublesome. (4) The filter screen or the activated carbon is required to be disassembled, debugged and the like after being installed and replaced every time, and once the filter screen or the activated carbon is installed incorrectly or debugged inaccurately, the filtering and adsorbing effects are reduced, so that the purpose of waste gas malodor treatment cannot be effectively solved. (5) The filtering and adsorbing modes of the adopted filter screen or activated carbon are single, and the pure filtering and adsorbing modes can not reach the required emission standard.
Therefore, there is a need for improvements in the art of treating various waste gases produced during the production of feed.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides an exhaust gas treatment system for feed processing, which is connected with each production process of feed processing in a totally-enclosed mode to prevent the emission of an unorganized form of smell; the feed processing production process comprises the production links of feeding, mixing, crushing, puffing, drying, cooling and the like, wherein during normal production, a state that the air suction device and the production processes are mutually closed and not circulated is formed through a closed door, after malodorous gas in the production processes is accumulated to a certain amount, the closed door is opened, malodorous gas uniformly collects waste gas such as malodor and the like emitted in the production processes in a waste gas collecting chamber through a powerful exhaust fan of the air suction device, the waste gas enters a deodorizing device consisting of a washing chamber and a spraying chamber for deodorizing treatment, the waste gas entering the deodorizing device firstly passes through the washing chamber and is primarily deodorized through modes such as a water curtain, spraying and the like, part of waste gas particles are adhered to the surface of a water body, then enters a water treatment precipitation device along with the water body, secondary deodorizing is carried out through the spraying chamber, a large number of atomizing spray heads are arranged in the spraying chamber, the contact area of the water body with the waste gas can be sufficiently increased after atomizing, the waste gas particles can be better adhered, most of the waste gas is purified in the chamber, and the atomized water body also enters the water treatment precipitation device; finally, the exhaust gas after deodorization is discharged at high altitude through an air exhaust drum with the height of 45 meters. The waste gas treatment system can uniformly and intensively store malodorous waste gas generated in each production process, then enters a deodorizing device to perform primary deodorizing and secondary deodorizing purification on malodorous gas, and water mixed with solid particles in the deodorizing process enters a water treatment precipitation device to perform solid precipitation, water separation and the like, and other deodorizing treated water is discharged at high altitude, so that the environment is not polluted. The whole system uniformly collects and processes malodorous waste gas, achieves the effect of efficient and centralized processing, can achieve waste gas treatment of each process by one set of equipment, avoids the technical defect that waste gas devices are required to be independently configured in each production process in the prior art, is small in number of required parts, does not occupy excessive space, ensures that the layout of each production process in feed production is more reasonable, has a simple structure, has obvious effect of deodorizing for many times, does not need to replace parts frequently, and greatly reduces the cost of waste gas treatment.
The technical scheme adopted for solving the technical problems is as follows: the waste gas treatment system for feed processing comprises a suction device, a waste gas collecting chamber, a washing chamber, a spray chamber, a high-altitude exhaust barrel and a water treatment sedimentation device, wherein the suction device is connected with the suction device, the washing chamber is connected with the waste gas collecting chamber, the spray chamber is connected with the washing chamber, the high-altitude exhaust barrel is connected with the top of the spray chamber, and the water treatment sedimentation device is connected with the bottom of the washing chamber and the bottom of the spray chamber; the washing chamber is internally provided with a water curtain faucet forming a water curtain and a spray head forming spray water, and the spray chamber is internally provided with an atomization spray nozzle forming atomization spray; the height of the high-altitude exhaust barrel is 45 meters.
Further, a filter is also arranged in the high-altitude exhaust barrel.
Further, the air suction device comprises eight air suction pipelines which are respectively connected with a feeding unit, a mixing unit, a crushing unit, a puffing unit, a curing unit, a granulating unit, a drying unit and an air cooling unit, each air suction pipeline is provided with a powerful exhaust fan, the front end of each air suction pipeline is provided with a sealing door at the position in front of the powerful exhaust fan, and the rear end of each air suction pipeline is provided with a one-way valve at the position behind the powerful exhaust fan.
Further, the water treatment sedimentation device comprises a water guide pipe connected with the bottom of the washing chamber and the bottom of the spraying chamber, a sedimentation tank connected with the outlet end of the water guide pipe, an aerobic tank connected with the sedimentation tank, an ozone oxidation tank connected with the aerobic tank, and a water purifying tank connected with the ozone oxidation tank.
Further, the top of the spray chamber is provided with a blower arranged at the air inlet end of the high-altitude exhaust barrel.
In summary, the exhaust gas treatment system for feed processing of the present utility model is connected with each production process of feed processing in a totally enclosed manner, so as to prevent the emission of odor in an unorganized manner; the feed processing production process comprises the production links of feeding, mixing, crushing, puffing, drying, cooling and the like, wherein during normal production, a state that the air suction device and the production processes are mutually closed and not circulated is formed through a closed door, after malodorous gas in the production processes is accumulated to a certain amount, the closed door is opened, malodorous gas uniformly collects waste gas such as malodor and the like emitted in the production processes in a waste gas collecting chamber through a powerful exhaust fan of the air suction device, the waste gas enters a deodorizing device consisting of a washing chamber and a spraying chamber for deodorizing treatment, the waste gas entering the deodorizing device firstly passes through the washing chamber and is primarily deodorized through modes such as a water curtain, spraying and the like, part of waste gas particles are adhered to the surface of a water body, then enters a water treatment precipitation device along with the water body, secondary deodorizing is carried out through the spraying chamber, a large number of atomizing spray heads are arranged in the spraying chamber, the contact area of the water body with the waste gas can be sufficiently increased after atomizing, the waste gas particles can be better adhered, most of the waste gas is purified in the chamber, and the atomized water body also enters the water treatment precipitation device; finally, the exhaust gas after deodorization is discharged at high altitude through an air exhaust drum with the height of 45 meters. The waste gas treatment system can uniformly and intensively store malodorous waste gas generated in each production process, then enters a deodorizing device to perform primary deodorizing and secondary deodorizing purification on malodorous gas, and water mixed with solid particles in the deodorizing process enters a water treatment precipitation device to perform solid precipitation, water separation and the like, and other deodorizing treated water is discharged at high altitude, so that the environment is not polluted. The whole system uniformly collects and processes malodorous waste gas, achieves the effect of efficient and centralized processing, can achieve waste gas treatment of each process by one set of equipment, avoids the technical defect that waste gas devices are required to be independently configured in each production process in the prior art, is small in number of required parts, does not occupy excessive space, ensures that the layout of each production process in feed production is more reasonable, has a simple structure, has obvious effect of deodorizing for many times, does not need to replace parts frequently, and greatly reduces the cost of waste gas treatment.
Drawings
FIG. 1 is a schematic diagram showing the construction of an exhaust gas treatment system for feed processing according to example 1 of the present utility model;
FIG. 2 is a schematic diagram of the connection of the exhaust collection chamber to the aspirator and the units;
FIG. 3 is a schematic diagram of the connection of the washing chamber to the shower chamber and the high-altitude exhaust funnel.
Detailed Description
Example 1
The exhaust gas treatment system for feed processing described in this embodiment 1, as shown in fig. 1, 2 and 3, comprises a suction device 9 connected with a feeding unit 1, a mixing unit 2, a crushing unit 3, a puffing unit 4, a curing unit 5, a granulating unit 6, a drying unit 7 and an air cooling unit 8 in the feed processing process, and further comprises an exhaust gas collecting chamber 27 connected with the suction device, a washing chamber 10 connected with the exhaust gas collecting chamber, a spray chamber 11 connected with the washing chamber, an overhead exhaust pipe 12 connected with the top of the spray chamber, and a water treatment precipitation device 13 connected with the bottom of the washing chamber and the bottom of the spray chamber; a water curtain faucet 14 forming a water curtain and a spray head 15 forming spray water outlet are arranged in the washing chamber, and an atomization spray nozzle 16 forming atomization spray is arranged in the spray chamber; the height of the high-altitude exhaust barrel is 45 meters.
In this embodiment 1, a filter 17 is further provided in the high-altitude exhaust pipe. The filter is an activated carbon adsorber, and the activated carbon adsorber is arranged on an exhaust port of the high-altitude exhaust barrel. The active carbon is black powdery and granular amorphous carbon with a plurality of holes, the main component is carbon, the active carbon has strong adsorption capacity, can adsorb gas, liquid or colloidal solid and the like on the surface of the active carbon, can realize the final adsorption treatment of residual or incompletely treated waste gas, and ensures the discharge of clean gas.
In this embodiment 1, the air suction device includes eight air suction pipes 28 respectively connected with the feeding unit, the mixing unit, the crushing unit, the puffing unit, the curing unit, the granulating unit, the drying unit, and the air cooling unit, each air suction pipe is provided with a strong exhaust fan 18, a sealing door 19 is disposed at a position in front of the strong exhaust fan at the front end of the air suction pipe, and a one-way valve 20 is disposed at a position behind the strong exhaust fan at the rear end of the air suction pipe. The strong exhaust fan independently blows the foul waste gas in each production procedure into a waste gas collecting chamber for centralized treatment; when the malodorous gas does not reach a certain amount during the production of each working procedure, the airtight door is in a normally closed state, so that the malodorous gas is prevented from leaking into the air suction pipeline, and the raw material waste caused by the fact that raw material dust and particles enter the air suction pipeline in each production working procedure can be reduced; when the malodorous gas is generated in a sufficient quantity, the airtight door and the one-way valve are opened, the powerful exhaust fan is started, and the malodorous gas in the corresponding production process is blown into the waste gas collecting chamber for centralized treatment.
In this embodiment 1, the water treatment and precipitation device comprises a water guide pipe 21 connected with the bottom of the washing chamber and the bottom of the spraying chamber, a precipitation tank 22 connected with the outlet end of the water guide pipe, an aerobic tank 23 connected with the precipitation tank, an ozone oxidation tank 24 connected with the aerobic tank, and a clean water tank 25 connected with the ozone oxidation tank. The sewage is subjected to solid precipitation in a precipitation tank through a water guide pipe, and then enters an aerobic tank for anaerobic reaction; after the aerobic tank is treated, an ozone oxidation tank is added, and the organic matters which are difficult to decompose are oxidized and degraded by adding ozone; because the hydroxyl radical (OH ■) of the intermediate product of the decomposition of ozone in water has strong oxidation and degradation effects on difficult biodegradable substances such as protein, organic ammonia, unsaturated compounds and the like. Ozone can not only improve the treatment efficiency of wastewater and reduce COD (chemical oxygen demand) and BOD (biological oxygen demand) in wastewater, so that the effluent is stable and reaches the discharge standard.
In the embodiment 1, the top of the spray chamber is provided with a blower 26 arranged at the air inlet end of the high-altitude exhaust funnel. Because the temperature of waste gas generated in production processes such as drying in the feed production process is high, water vapor in the form of white smoke is generated after the waste gas contacts with spray water in a spray chamber, a blower is additionally arranged at the air inlet end of the high-altitude exhaust barrel, and the white smoke is blown back again through the spray chamber to carry out repeated cyclic spray and cooling, so that the discharge of the white smoke at the air outlet end of the high-altitude exhaust barrel is reduced, and the misunderstanding of people in the high altitude caused by the discharge of the white smoke is prevented; even if a small amount of white smoke is generated, the deodorizing effect and the environmental pollution are not affected, because the white smoke is nontoxic and harmless vapor.
Through carrying out waste gas odor concentration detection to the exhaust end of high altitude aiutage, the testing result is: emission concentration (dimensionless) 2290, lower than emission standard value of malodorous pollutant emission standard (GB 14554-93): the height of the exhaust pipe is 45 meters, and the standard limit of the exhaust concentration (dimensionless) is less than or equal to 40000.
In order to reduce the influence of malodor on the surrounding atmosphere, besides the collection and deodorization treatment of exhaust gas such as strictly made malodor, the following control measures are adopted to reduce the influence of malodor: the wide-band evergreen arbor is planted in a factory, and the intercropped shrub is used as a protective forest belt, so that the air is purified to a certain extent. And the purified water purified by the water treatment precipitation device can flow out of the purified water tank to be used for tree irrigation.
The above description is only of the preferred embodiment of the present utility model, and is not intended to limit the structure of the present utility model in any way. Any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims (5)
1. The waste gas treatment system for feed processing is characterized by comprising a suction device, a waste gas collecting chamber, a washing chamber, a spray chamber, a high-altitude exhaust barrel and a water treatment sedimentation device, wherein the suction device is connected with the suction device, the washing chamber is connected with the waste gas collecting chamber, the spray chamber is connected with the washing chamber, the high-altitude exhaust barrel is connected with the top of the spray chamber, and the water treatment sedimentation device is connected with the bottom of the washing chamber and the bottom of the spray chamber; the washing chamber is internally provided with a water curtain faucet forming a water curtain and a spray head forming spray water, and the spray chamber is internally provided with an atomization spray nozzle forming atomization spray; the height of the high-altitude exhaust barrel is 45 meters.
2. The exhaust treatment system for feed processing according to claim 1, wherein a filter is further provided in the high-altitude exhaust pipe.
3. The waste gas treatment system for feed processing according to claim 2, wherein the air suction device comprises eight air suction pipelines which are respectively connected with the feeding unit, the mixing unit, the crushing unit, the puffing unit, the curing unit, the granulating unit, the drying unit and the air cooling unit, each air suction pipeline is provided with a powerful exhaust fan, a sealing door is arranged at the front end of the air suction pipeline and positioned in front of the powerful exhaust fan, and a one-way valve is arranged at the rear end of the air suction pipeline and positioned behind the powerful exhaust fan.
4. A waste gas treatment system for feed processing according to claim 3, wherein the water treatment sedimentation device comprises a water guide pipe connected with the bottom of the washing chamber and the bottom of the spraying chamber, a sedimentation tank connected with the outlet end of the water guide pipe, an aerobic tank connected with the sedimentation tank, an ozone oxidation tank connected with the aerobic tank, and a clean water tank connected with the ozone oxidation tank.
5. The exhaust gas treatment system for feed processing according to claim 4, wherein the top of the spray chamber is provided with a blower positioned at the air inlet end of the high-altitude exhaust funnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223330396.5U CN219072451U (en) | 2022-12-12 | 2022-12-12 | Waste gas treatment system for feed processing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223330396.5U CN219072451U (en) | 2022-12-12 | 2022-12-12 | Waste gas treatment system for feed processing |
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| Publication Number | Publication Date |
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| CN219072451U true CN219072451U (en) | 2023-05-26 |
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| CN202223330396.5U Active CN219072451U (en) | 2022-12-12 | 2022-12-12 | Waste gas treatment system for feed processing |
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- 2022-12-12 CN CN202223330396.5U patent/CN219072451U/en active Active
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