CN112452137A - Intensive livestock and poultry breeding tail end air purification device and method - Google Patents
Intensive livestock and poultry breeding tail end air purification device and method Download PDFInfo
- Publication number
- CN112452137A CN112452137A CN202011480700.7A CN202011480700A CN112452137A CN 112452137 A CN112452137 A CN 112452137A CN 202011480700 A CN202011480700 A CN 202011480700A CN 112452137 A CN112452137 A CN 112452137A
- Authority
- CN
- China
- Prior art keywords
- washing
- liquid
- liquid storage
- storage tank
- chamber
- 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.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/58—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/50—Inorganic acids
- B01D2251/506—Sulfuric acid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0266—Other waste gases from animal farms
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Housing For Livestock And Birds (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an intensive livestock and poultry breeding tail end air purification device and method, wherein the device comprises a house body connected with the tail end of a livestock and poultry house, and the house body comprises a control room, a purification room and an exhaust chamber; a spraying purification device is arranged between the purification chamber and the exhaust chamber; a control system is arranged in the control room; the purifying chamber is provided with a fan; the spraying purification device comprises a washing curtain arranged between the purification chamber and the exhaust chamber, a liquid storage component and a spraying component used for spraying the washing liquid in the liquid storage component onto the washing curtain; the liquid storage assembly comprises a liquid collecting groove and a liquid storage pool, the liquid collecting groove is arranged below the washing curtain, the liquid storage pool is arranged in the control chamber, and the liquid collecting groove is communicated with the liquid storage pool; the spraying component is communicated with the liquid storage tank. The device can purify harmful gas generated in the breeding process, thereby reducing environmental pollution caused by the unorganized discharge problem at the tail end of livestock breeding and reducing the influence on the production and life of surrounding residents.
Description
Technical Field
The invention relates to the technical field of large-scale livestock and poultry breeding equipment, in particular to an intensive livestock and poultry breeding tail end air purification device and method.
Background
Along with the continuous improvement of living standard of people, people have more and more demands on the quantity of meat products of poultry and livestock. Therefore, livestock breeding has become one of leading industries of agricultural economy, a good environment cannot be provided for the growth of livestock due to the fact that a building structure of a traditional large-scale livestock breeding house is closed, a large amount of bad-smelling harmful gases such as ammonia gas, hydrogen sulfide, inhalable particles, skatole and the like are discharged in the breeding process, the health of the livestock is harmed, the resistance of the livestock is reduced, the mortality and morbidity in the breeding process are increased invisibly, the exertion of the production performance is hindered, and even serious influence is generated on breeding personnel and surrounding people; in addition, the odor generated in the breeding process permeates the space of the livestock breeding house and the nearby environment, and causes serious pollution to the surrounding water, soil and atmospheric environment through natural diffusion.
At present, domestic research on reducing the emission of gaseous pollutants in livestock and poultry breeding environment mainly focuses on optimizing feed formulas, improving activated carbon, high-energy photoelectric deodorization equipment, investigating the emission characteristics of malodorous pollutants in livestock and poultry farms and the like. But the research on the air purification technology and equipment at the tail end of the large-scale and commercial livestock and poultry breeding is less. Therefore, how to efficiently purify the gas pollutants in the environment of livestock and poultry is the key for ensuring the sustainable development of the livestock industry, and an intelligent and efficient livestock and poultry breeding end air purification device and method are urgently needed in the industrial development.
Disclosure of Invention
The invention aims to overcome the existing problems and provide an intensive livestock and poultry breeding tail end air purification device which can purify harmful gases (such as ammonia gas, hydrogen sulfide and the like) generated in the breeding process, thereby reducing the environmental pollution caused by the unorganized discharge problem of the livestock and poultry breeding tail end and reducing the influence on the production and life of surrounding residents.
The invention also aims to overcome the problems and provide an intensive livestock and poultry breeding terminal air purification method.
The purpose of the invention is realized by the following technical scheme:
an intensive livestock and poultry breeding tail end air purification device comprises a house body connected with the tail end of a livestock and poultry house, wherein the house body comprises a control room, a purification room and an exhaust room; wherein the content of the first and second substances,
a spraying purification device is arranged between the purification chamber and the exhaust chamber; a control system for controlling the operation of the spraying purification device is arranged in the control room; a fan used for guiding odor in the livestock and poultry house into the purifying chamber is arranged on the wall of the opposite end of the purifying chamber, which is provided with the spraying and purifying device; the spraying purification device comprises a washing curtain arranged between the purification chamber and the exhaust chamber, a liquid storage component used for storing washing liquid and a spraying component used for spraying the washing liquid in the liquid storage component onto the washing curtain; the liquid storage assembly comprises a liquid collecting tank and a liquid storage tank, the liquid collecting tank is arranged below the washing curtain and used for collecting washing liquid sprayed on the washing curtain, the liquid storage tank is arranged in the control chamber, and the liquid collecting tank is communicated with the liquid storage tank; the spraying assembly is communicated with the liquid storage tank;
the working principle of the intensive livestock and poultry breeding tail end air purification device is as follows:
when the poultry house odor purifying device works, the fan is started, odor in the poultry house is led into the purifying chamber after the fan is started, and then the odor is discharged towards the exhaust chamber through the washing curtain and then discharged to the atmosphere through the exhaust chamber; when the odor passes through the washing curtain, the control system controls the spraying component to spray the washing liquid in the liquid storage tank onto the washing curtain, and the odor is sprayed by the washing liquid on the washing curtain, so that harmful gases such as ammonia gas, hydrogen sulfide and the like in the odor can be effectively removed, and the odor is purified; after the washing liquid is sprayed on the washing curtain, the washing liquid flows downwards along the washing curtain under the action of self gravity until flowing into the liquid collecting tank, and then flows into the liquid storage tank through the liquid collecting tank to carry out next purification cycle; through setting up the collecting tank for washing liquid can cyclic utilization, has effectively reduced use cost.
In a preferred aspect of the present invention, the spray assembly includes a side spray assembly disposed at a side of the washing curtain and an upper end spray assembly disposed at an upper end of the washing curtain.
Preferably, the side spray assembly includes a side main pipe, a side branch pipe, a side nozzle, and a side washing pump; one end of the side main pipeline is communicated with the liquid storage tank in the control chamber, the other end of the side main pipeline penetrates through the wall of the control chamber and extends along the side face of the washing curtain in the purification chamber, the side branch pipelines are I-shaped, the middle parts of the side branch pipelines are communicated with the side main pipeline, the side branch pipelines are multiple, the side branch pipelines are uniformly arranged along the side main pipeline, the side nozzles are multiple, and the side nozzles are uniformly arranged at the upper end and the lower end of the side branch pipeline; the side branch pipelines are provided with manual control valves at positions between the side nozzles and the side main pipeline; the side washing pump is arranged in the control chamber and used for pumping the washing liquid in the liquid storage tank to the side main pipe.
Preferably, the upper end spraying assembly comprises an upper end main pipeline, an upper end nozzle, a normally open type electromagnetic valve and an upper end washing pump; one end of the upper end main pipeline is communicated with the liquid storage tank, the other end of the upper end main pipeline penetrates through the wall of the control chamber and extends along the upper end of the washing curtain in the purification chamber, a plurality of upper end nozzles are arranged in the upper end main pipeline and are uniformly arranged along the upper end main pipeline; the normally open type electromagnetic valve is arranged on the upper end main pipeline; the upper end washing pump is arranged in the control chamber and used for pumping the washing liquid in the liquid storage tank into the upper end main pipeline. By adopting the structure, the side spraying component and the upper end spraying component are arranged, so that the washing liquid can be sprayed in the washing curtain more fully, and the effect of purifying air is improved.
In a preferred embodiment of the present invention, an acid adding module is disposed in the control chamber, wherein the acid adding module includes a sulfuric acid storage tank for storing sulfuric acid, a sulfuric acid conduit, and a sulfuric acid pump disposed between the sulfuric acid storage tank and the sulfuric acid conduit; the tail end of the sulfuric acid conduit extends into the liquid storage tank. Through setting up the acidification subassembly, can be through sulphuric acid pump with sulphuric acid in the sulphuric acid storage tank along sulphuric acid pipe pump sending to the liquid reserve tank in, through adding sulphuric acid to the liquid reserve tank for washing liquid pH value in the liquid reserve tank reduces, can improve the purifying power of washing liquid, the effectual ammonia of getting rid of in the foul smell.
Preferably, be equipped with the subassembly of adding water that is used for providing the liquid reserve tank with the pure water in the clean room, the subassembly of adding water includes the inlet tube of being connected with the water source and sets up closed moisturizing solenoid valve on the inlet tube, the end of inlet tube with the liquid reserve tank intercommunication. Through setting up the subassembly that adds water, when the washing liquid of liquid storage tank is not enough, the normal close type moisturizing solenoid valve is opened, provides sufficient pure water in to the liquid storage tank.
Preferably, a waste discharging component for discharging waste cleaning solution in the liquid storage tank is arranged in the control chamber; the waste discharge assembly comprises a waste discharge pipe, a normally closed waste discharge electromagnetic valve and a sewage pond, wherein the normally closed waste discharge electromagnetic valve is arranged on the waste discharge pipe, the sewage pond is arranged outside the house body, the waste discharge pipe is arranged between the normally open electromagnetic valve and the upper end washing pump, one end of the waste discharge pipe is communicated with the upper end main pipeline, and the other end of the waste discharge pipe is communicated with the sewage pond. When the washing liquid in the liquid storage tank reaches the waste discharge standard, the normally open type electromagnetic valve is closed, the normally closed type waste discharge electromagnetic valve is opened, the washing pump at the upper end is started, and the washing liquid in the liquid storage tank is pumped into the waste discharge pipe until being discharged into the sewage disposal tank.
Preferably, a PLC control box is arranged in the control chamber, a differential pressure sensor for detecting air pressure in the purification chamber is arranged in the purification chamber, the upper end main pipe is provided with an EC value sensor for detecting conductivity and an upper end pipe pressure sensor, the side surface main pipe is provided with a pH value sensor for detecting a pH value and a side surface pipe pressure sensor, and an ultrasonic liquid level sensor for detecting a liquid level of the liquid storage tank is arranged above the liquid storage tank; the PLC control box is respectively connected with the differential pressure sensor, the EC value sensor, the upper end pipe pressure sensor, the pH value sensor, the side pipe pressure sensor, the ultrasonic liquid level sensor, the side washing pump, the normally open type electromagnetic valve, the upper end washing pump, the sulfuric acid pump, the normally closed type water replenishing electromagnetic valve and the normally closed type waste discharge electromagnetic valve through lines to form the control system. By adopting the structure, the control of acid adding, water supplementing and waste discharging of the liquid storage tank is realized through the PLC control box, and specifically, when the pH value sensor detects that the acidity in the liquid storage tank is insufficient, the PLC control box controls the sulfuric acid pump to work, and a certain amount of acid is extracted and discharged into the liquid storage tank; when the ultrasonic liquid level sensor detects that the liquid level of the liquid storage tank is lower, the normally closed water replenishing electromagnetic valve is opened to replenish water into the liquid storage tank, and when the pH value sensor and the EC value sensor detect that the pH value and the conductivity of the washing liquid reach the waste discharge index, the normally closed waste discharge electromagnetic valve is automatically opened and closed, and the upper end washing pump is opened to perform waste discharge work.
Preferably, the number of the fans is multiple, the fans are transversely and uniformly arranged along the wall of the purification chamber, an air guide cover is arranged at an outlet of each fan, and the diameter of the air guide cover is gradually increased towards the washing curtain. Through setting up a plurality of fans, can be better with the leading-in to clean room of the foul smell of beasts and birds house, under the effect of wind scooper, carry the foul smell to the washing curtain more easily, further improve the effect of purifying the foul smell.
Preferably, the bottom surface of the liquid collecting tank is an inclined surface which gradually rises towards the direction far away from the liquid storage tank. Through setting up the inclined plane, more be favorable to the washing liquid in the collecting tank to flow into the liquid reserve tank in to retrieve the washing liquid in the collecting tank to the liquid reserve tank more easily.
An intensive livestock and poultry breeding tail end air purification method comprises an automatic working mode, wherein the automatic working mode comprises the following steps:
(1) starting a fan, and introducing odor in the livestock and poultry house into the purifying chamber through the fan;
(2) the ultrasonic liquid level sensor detects the water level height of washing liquid in the liquid storage tank, when the water level of the washing liquid is lower than a preset height, the normally closed water replenishing electromagnetic valve is opened, water supplied by a water source enters the liquid storage tank through the water inlet pipe until the washing liquid in the liquid storage tank reaches the preset height, and the normally closed water replenishing electromagnetic valve is closed;
(3) the pH value sensor detects the pH value of the washing liquid in the liquid storage tank, when the acidity of the washing liquid is insufficient, the sulfuric acid pump is started, the sulfuric acid in the sulfuric acid tank is conveyed into the liquid storage tank through the sulfuric acid guide pipe, and when the acidity of the washing liquid is sufficient, the sulfuric acid pump is stopped;
(4) the side washing pump and the upper end washing pump work, a part of washing liquid in the liquid storage tank is conveyed to the side face of the washing curtain through the side washing pump, then is sprayed on the side edge of the washing curtain through the side nozzle, and the other part of washing liquid is conveyed to the upper end of the washing curtain through the upper end washing pump, and then is sprayed on the upper end of the washing curtain through the upper end nozzle; the odor is sprayed and purified on the washing curtain through the washing liquid, and the washing liquid sprayed on the washing curtain flows downwards along the washing curtain under the action of self gravity until flowing into the liquid collecting tank and then flows into the liquid storage tank through the liquid collecting tank; the odor after spraying and purification is discharged into an exhaust chamber through a washing curtain and then is discharged out of the atmosphere through the exhaust chamber;
(5) the pH value sensor and the EC value sensor respectively detect the pH value and the conductivity of the washing liquid, when the washing liquid reaches a waste discharge index, the side washing pump stops running, the normally-closed waste discharge electromagnetic valve is opened, the upper washing pump continues running, then the normally-open electromagnetic valve is closed, and the washing liquid in the liquid storage tank is discharged to the sewage tank through the waste discharge pipe; and (5) after the pollution discharge is finished, executing the step (2) and entering the next cycle.
Preferably, in the automatic operation mode, an economic operation mode or an efficient operation mode is included; when the economic operation mode is started, the sulfuric acid pump does not work, and the washing liquid in the liquid storage tank is pure water; when the high-efficiency operation mode is started, the sulfuric acid pump works, and the washing liquid in the liquid storage tank is prepared by mixing sulfuric acid and pure water. Specifically, when in summer, the fan in the clean room is opened a large amount for the increase of air volume in the clean room lasts the in-process of a large amount of wind-guiding, makes beasts and birds house ammonia concentration be in lower within range, opens economic operation mode, can save consumptive material costs such as sulphuric acid. When in winter, the quantity of opening of the fans in the purifying chamber is small, so that the ventilation quantity in the purifying chamber is reduced, the concentration of the ammonia gas output by the livestock and poultry house is higher, the efficient operation mode is started, and the ammonia removal capacity can be improved through the acidic cleaning solution. The economic operation mode or the high-efficiency operation mode can be flexibly selected according to actual conditions.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the intensive livestock and poultry breeding terminal air purification device, the cleaning solution in the liquid storage tank is sprayed onto the washing curtain, and the odor is subjected to the contact purification effect of the cleaning solution on the washing curtain, so that harmful gases such as ammonia gas and hydrogen sulfide in the odor can be effectively removed, the odor is purified, and meanwhile, the washing curtain can effectively adsorb and purify dust particles, so that the environmental pollution caused by the unorganized emission problem of the livestock and poultry breeding terminal is reduced, and the influence on the production and the life of surrounding residents is reduced.
2. According to the intensive livestock and poultry breeding tail end air purification device, the liquid collecting tank is arranged below the washing curtain, and washing liquid sprayed by the spraying component flows downwards along the washing curtain under the action of self gravity until flowing into the liquid collecting tank, and then flows into the liquid storage tank through the liquid collecting tank to perform next purification cycle; through setting up the collecting tank for washing liquid can cyclic utilization, has effectively reduced use cost.
Drawings
Fig. 1-2 are schematic structural views of an embodiment of an intensive livestock and poultry breeding terminal air purification device in the present invention, wherein fig. 1 is a perspective view, and fig. 2 is a perspective view in another view direction.
Fig. 3-7 are schematic structural views of the house body without the top and part of the wall body, wherein fig. 3 is a perspective view, fig. 4 is a perspective view from another viewing direction, fig. 5 is a left side view, fig. 6 is a right side view, and fig. 7 is a top view.
Fig. 8 is a partial enlarged view of a portion a in fig. 4.
Fig. 9 is a partial enlarged view of fig. 5 at B.
Fig. 10 is a sectional view taken along the direction C-C in fig. 6.
FIG. 11 is a schematic view of a water feeding assembly according to the present invention.
Detailed Description
In order to make those skilled in the art understand the technical solutions of the present invention well, the following description of the present invention is provided with reference to the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
Example 1
Referring to fig. 1-2, the intensive livestock and poultry breeding terminal air purification device in the embodiment includes a house body connected to a terminal of a livestock and poultry house, and the house body includes a control room 1, a purification room 2 and an exhaust room 3.
Referring to fig. 1-10, a spray purification device is arranged between the purification chamber 2 and the exhaust chamber 3; a fan 4 for guiding odor in the livestock and poultry house into the purifying chamber 2 is arranged on the wall of the purifying chamber 2 at the opposite end provided with the spraying and purifying device; the spraying purification device comprises a washing curtain 5 arranged between the purification chamber 2 and the exhaust chamber 3, a liquid storage component 6 used for storing washing liquid, and a spraying component used for spraying the washing liquid in the liquid storage component 6 onto the washing curtain 5; the liquid storage component 6 comprises a liquid collecting tank 6-1 for collecting the washing liquid sprayed on the washing curtain 5 and a liquid storage tank 6-2 arranged in the control chamber 1, one end of the liquid collecting tank 6-1 is communicated with the liquid storage tank 6-2, and the other end of the liquid collecting tank 6-1 extends along the edge of the purification chamber 2 and is distributed in a U shape; the spraying component is communicated with the liquid storage tank 6-2.
Furthermore, the washing curtain 5 is made of loose and porous PP plastic.
Referring to fig. 3-5, the spray assembly includes a side spray assembly 7 disposed at a side of the wash curtain 5 and an upper end spray assembly 8 disposed at an upper end of the wash curtain 5.
Referring to fig. 3-10, the side shower assembly 7 includes a side main pipe 7-1, a side branch pipe 7-2, a side nozzle 7-3, and a side washing pump 7-4; one end of the side main pipeline 7-1 is communicated with the liquid storage tank 6-2 in the control chamber 1, the other end of the side main pipeline passes through the wall of the control chamber 1 and extends along the side surface of the washing curtain 5 in the purification chamber 2, the side branch pipelines 7-2 are I-shaped, the middle part of the side branch pipeline 7-2 is communicated with the side main pipeline 7-1, the side branch pipelines 7-2 are multiple, the side branch pipelines 7-2 are uniformly arranged along the side main pipeline 7-1, the side nozzles 7-3 are multiple, and the side nozzles 7-3 are uniformly arranged at the upper end and the lower end of the side branch pipeline 7-2; the side branch pipelines 7-2 are provided with manual control valves 7-5 at positions between the side nozzles 7-3 and the side main pipeline 7-1 of the side main pipeline 7-1; the side washing pump 7-4 is provided in the control cabin 1 for pumping washing liquid in the reservoir 6-2 to the side main pipe 7-1. Through setting up side spray set 7, when spraying and purifying, through spraying the washing liquid from the side of washing curtain 5, the washing liquid can be on a large scale cover washing curtain 5, is favorable to purifying the foul smell fully, improves purifying effect.
Referring to fig. 3-10, the upper end spraying assembly 8 includes an upper end main pipe 8-1, an upper end nozzle 8-2, a normally open type solenoid valve 8-3, and an upper end washing pump 8-4; one end of the upper end main pipeline 8-1 is communicated with the liquid storage tank 6-2, the other end of the upper end main pipeline penetrates through the wall of the control room 1 and extends along the upper end of the washing curtain 5 in the purifying room 2, the number of the upper end nozzles 8-2 is multiple, and the multiple upper end nozzles 8-2 are arranged in the upper end main pipeline 8-1 and are uniformly arranged along the upper end main pipeline 8-1; the normally open type electromagnetic valve 8-3 is arranged on the upper end main pipeline 8-1; the upper washing pump 8-4 is arranged in the control room 1 for pumping the washing liquid in the liquid storage tank 6-2 to the upper main pipe 8-1. Adopt above-mentioned structure, through setting up upper end spray assembly 8, the washing liquid sprays from washing curtain 5 top, can spray the washing liquid in washing curtain 5 more fully, further improves air-purifying's effect.
Referring to fig. 4-5 and 8-9, an acid adding assembly 9 is arranged in the control chamber 1, wherein the acid adding assembly 9 comprises a sulfuric acid storage tank 9-1 for storing sulfuric acid, a sulfuric acid conduit 9-2 and a sulfuric acid pump 9-3 arranged between the sulfuric acid storage tank 9-1 and the sulfuric acid conduit 9-2; the tail end of the sulfuric acid guide pipe 9-2 extends into the liquid storage tank 6-2, and the sulfuric acid guide pipe 9-2 is made of Teflon. Through setting up and adding sour subassembly 9, can pump the sulphuric acid in the sulphuric acid storage tank 9-1 to the stock solution 6-2 along sulphuric acid pipe 9-2 through sulphuric acid pump 9-3 in, through adding sulphuric acid in the stock solution 6-2 for the washing liquid pH value in the stock solution 6-2 reduces, can improve the purifying power of washing liquid, gets rid of the ammonia in the foul smell effectively.
Referring to fig. 11, a water adding assembly 10 for supplying pure water to the liquid storage tank 6-2 is disposed in the purification chamber 2, the water adding assembly 10 includes a water inlet pipe 10-1 connected to a water source and a normally closed water replenishing electromagnetic valve 10-2 disposed on the water inlet pipe 10-1, and a distal end of the water inlet pipe 10-1 is communicated with the liquid storage tank 6-2. By arranging the water adding component 10, when the cleaning solution in the liquid storage tank 6-2 is insufficient, the normally closed water supplementing electromagnetic valve 10-2 is opened, and enough pure water is provided for the liquid storage tank 6-2.
Referring to fig. 4-10, a waste discharging assembly 11 for discharging the waste cleaning solution in the liquid storage tank 6-2 is arranged in the control chamber 1; the waste discharge assembly 11 comprises a waste discharge pipe 11-1, a normally closed waste discharge electromagnetic valve 11-2 arranged on the waste discharge pipe 11-1 and a sewage disposal pool 11-3 arranged outside the house body, wherein the waste discharge pipe 11-1 is arranged between the normally open electromagnetic valve 8-3 and an upper end washing pump 8-4, one end of the waste discharge pipe 11-1 is communicated with the upper end main pipe 8-1, and the other end of the waste discharge pipe 11-1 is communicated with the sewage disposal pool 11-3. When the washing liquid in the liquid storage tank 6-2 reaches the waste discharge standard, the normally open type electromagnetic valve 8-3 is closed, the normally closed type waste discharge electromagnetic valve 11-2 is opened, the upper end washing pump 8-4 is started, and the washing liquid in the liquid storage tank 6-2 is pumped into the waste discharge pipe 11-1 until the washing liquid is discharged into the sewage discharge tank 11-3.
Referring to fig. 4-10, a control system for controlling the operation of the spray purification device is arranged in the control room 1; a PLC control box 12 is arranged in the control room 1, a differential pressure sensor 13 for detecting the air pressure in the purification room 2 and the control room 1 is arranged in the purification room 2, the differential pressure sensor 13 comprises a differential pressure probe, one end of the differential pressure probe is arranged in the purification room 2, and the other end of the differential pressure probe is communicated with the control room 1 through a conduit; the upper end main pipeline 8-1 is provided with an EC value sensor 14 for detecting conductivity and an upper end pipe pressure sensor 15, the side surface main pipeline 7-1 is provided with a pH value sensor 16 and a side surface pipe pressure sensor 17 for detecting a pH value, and an ultrasonic liquid level sensor 18 for detecting the liquid level of the liquid storage tank 6-2 is arranged above the liquid storage tank 6-2; the PLC control box 12 is connected with the differential pressure sensor 13, the EC value sensor 14, the upper end pipe pressure sensor 15, the pH value sensor 16, the side pipe pressure sensor 17, the ultrasonic liquid level sensor 18, the side washing pump 7-4, the normally open type electromagnetic valve 8-3, the upper end washing pump 8-4, the sulfuric acid pump 9-3, the normally closed type water replenishing electromagnetic valve 10-2 and the normally closed type waste discharge electromagnetic valve 11-2 through lines to form the control system. By adopting the structure, the PLC control box 12 is used for realizing the control of acid adding, water supplementing and waste discharging of the liquid storage tank 6-2, and particularly, when the pH value sensor 16 detects that the acidity in the liquid storage tank 6-2 is insufficient, the PLC control box 12 controls the sulfuric acid pump to work, pump a certain amount of acid and discharge the acid into the liquid storage tank 6-2; when the ultrasonic liquid level sensor 18 detects that the liquid level of the liquid storage tank 6-2 is low, the normally closed water replenishing electromagnetic valve 10-2 is opened to replenish water into the liquid storage tank 6-2, when the pH value sensor 16 and the EC value sensor 14 detect that the pH value and the conductivity of the washing liquid reach the waste discharge index, the normally closed waste discharge electromagnetic valve 11-2 is automatically opened, the normally open electromagnetic valve 8-3 is closed, and the upper washing pump 8-4 is opened to perform waste discharge work.
Referring to fig. 3 to 4, the number of the fans 4 is 8, the 8 fans 4 are uniformly arranged along the wall of the clean room 2 in the transverse direction, an outlet of each fan 4 is provided with an air guide cover 19, and the diameter of the air guide cover 19 gradually increases towards the washing curtain 5. By arranging 8 fans 4, the odor of the livestock and poultry house can be better guided into the purifying chamber 2, and the odor can be more easily conveyed into the washing curtain 5 under the action of the air guide cover 19, so that the odor purifying effect is further improved.
Further, the fans 4 are controlled by an environmental control system provided in the livestock and poultry house, and are not linked to the PLC control box 12, and the size of the space in the clean room 2 needs to be calculated based on information such as the number, size, and ventilation amount of the fans 4.
Referring to fig. 4 and 7, the bottom surface of the liquid collecting tank 6-1 is an inclined surface which gradually rises towards the direction far away from the liquid storage tank 6-2, and the included angle between the inclined surface and the horizontal plane is 5-10 degrees; the depth of the liquid storage tank 6-2 is greater than that of the liquid collection tank 6-1. On one hand, the cleaning solution in the liquid collecting tank 6-1 can flow into the liquid storage tank 6-2 more conveniently by arranging the inclined surface, so that the cleaning solution in the liquid collecting tank 6-1 can be recovered into the liquid storage tank 6-2 more easily; on the other hand, the liquid collecting tank 6-1 and the liquid storage tank 6-2 can lead the recovered washing liquid to flow back to the liquid storage tank 6-2 to enter the next purification circulation through the principle of a communicating vessel.
Referring to fig. 3-4 and 6-7, the control room 1 and the clean room 2 are of a concrete structure, the exhaust room 3 is of a steel frame structure 23, and access doors 20 for maintenance are arranged between the control room 1 and the clean room 2 as well as between the control room 3 and the exhaust room 2; the top of the exhaust chamber is provided with an exhaust port 21, and by arranging the exhaust port 21, the gas purified by the washing curtain 5 is exhausted into the atmosphere through the exhaust port 21.
Referring to fig. 7, a floor drain 22 is provided at the bottom of the exhaust chamber 3. By arranging the floor drain 22, accumulated water and pollution discharge of the exhaust chamber 3 can be realized.
Referring to fig. 4-5 and 8-9, Y-shaped filters 24 are disposed on both the side main pipe 7-1 and the upper end main pipe 8-1. By arranging the Y-shaped filter 24, impurities in the washing liquid can be filtered, and the side nozzles 7-3 and the upper end nozzle 8-2 are prevented from being blocked.
Specifically, the livestock and poultry house is a pigsty, a chicken house and other common livestock and poultry breeding houses, and the livestock and poultry house needs to meet a closed large-scale breeding mode and is a single building with a fresh air ventilation system.
Referring to fig. 1 to 10, the intensive livestock and poultry breeding terminal air purification device has the working principle that:
when the poultry house odor purifying device works, the fan 4 is started, after the fan 4 is started, odor in the poultry house is introduced into the purifying chamber 2, then the odor is discharged to the exhaust chamber 3 through the washing curtain 5, and then the odor is discharged to the atmosphere through the exhaust chamber 3; when the odor passes through the washing curtain 5, the control system controls the spraying component to spray the washing liquid in the liquid storage tank 6-2 onto the washing curtain 5, and the odor passes through the spraying of the washing liquid on the washing curtain 5, so that harmful gases such as ammonia gas, hydrogen sulfide and the like in the odor can be effectively removed, and the odor is purified; after the washing liquid is sprayed on the washing curtain 5, the washing liquid flows downwards along the washing curtain 5 under the action of self gravity until flowing into the liquid collecting tank 6-1, and then flows into the liquid storage tank 6-2 through the liquid collecting tank 6-1 to carry out next purification cycle; by arranging the liquid collecting tank 6-1, the washing liquid can be recycled, and the use cost is effectively reduced.
The intensive livestock and poultry breeding tail end air purification method in the implementation disclosure comprises an automatic working mode, wherein the automatic working mode comprises the following steps:
(1) starting a fan 4, and introducing odor in the livestock and poultry house into the purifying chamber 2 through the fan 4;
(2) the ultrasonic liquid level sensor 18 detects the water level height of the washing liquid in the liquid storage tank 6-2, when the water level of the washing liquid is lower than the preset height, the normally closed water replenishing electromagnetic valve 10-2 is opened, water source supply enters the liquid storage tank 6-2 through the water inlet pipe 10-1 until the washing liquid in the liquid storage tank 6-2 reaches the preset height, and the normally closed water replenishing electromagnetic valve 10-2 is closed;
(3) a pH value sensor 16 detects the pH value of the washing liquid in the liquid storage tank 6-2, when the acidity of the washing liquid is insufficient, a sulfuric acid pump 9-3 is started, sulfuric acid in a sulfuric acid tank is conveyed into the liquid storage tank 6-2 through a sulfuric acid conduit 9-2, and when the acidity of the washing liquid integrally reaches the degree participating in purification, the conveying of the sulfuric acid pump 9-3 is stopped;
(4) the side washing pump 7-4 and the upper end washing pump 8-4 work, one part of washing liquid in the liquid storage tank 6-2 is conveyed to the side of the washing curtain 5 through the side washing pump 7-4, then sprayed on the side of the washing curtain 5 through the side nozzle 7-3, and the other part of washing liquid is conveyed to the upper end of the washing curtain 5 through the upper end washing pump 8-4, and then sprayed on the upper end of the washing curtain 5 through the upper end nozzle 8-2; the odor is sprayed and purified on the washing curtain 5 through the washing liquid, the washing liquid sprayed on the washing curtain 5 flows downwards along the washing curtain 5 under the action of self gravity until flowing into the liquid collecting tank 6-1, and then flows into the liquid storage tank 6-2 through the liquid collecting tank 6-1; the odor after spraying and purification is discharged into the exhaust chamber 3 through the washing curtain 5 and then is discharged out of the atmosphere through the exhaust chamber 3;
(5) the pH value sensor 16 and the EC value sensor 14 respectively detect the pH value and the conductivity of the washing liquid, when the washing liquid reaches a waste discharge index, the side washing pump 7-4 stops running, the normally closed waste discharge electromagnetic valve 11-2 is opened, the upper washing pump 8-4 continues running, then the normally open electromagnetic valve 8-3 is closed, and the washing liquid in the liquid storage tank 6-2 is discharged to a sewage tank through the waste discharge pipe 11-1; and (5) after the pollution discharge is finished, executing the step (2) and entering the next cycle.
Further, in the automatic working mode, an economic running mode or an efficient running mode is included; when the economic operation mode is started, the sulfuric acid pump 9-3 does not work, and the washing liquid in the liquid storage tank 6-2 is pure water; when the high-efficiency operation mode is started, the sulfuric acid pump 9-3 works, and the washing liquid in the liquid storage tank 6-2 is prepared by mixing sulfuric acid and pure water. Specifically, when in summer, the fan 4 in clean room 2 is opened the quantity many for the air volume increases in the clean room 2, at the in-process that lasts a large amount of wind-guiding, makes animal house ammonia concentration be in lower within range, opens economic operation mode, can save consumptive material costs such as sulphuric acid. When in winter, the number of the fans 4 in the purifying chamber 2 is small, so that the ventilation volume in the purifying chamber 2 is reduced, the concentration of the ammonia gas output by the livestock and poultry house is higher, the high-efficiency operation mode is started, and the ammonia removal capacity can be improved through the acidic washing solution. The economic operation mode or the high-efficiency operation mode can be flexibly selected according to actual conditions.
Example 2
The intensive livestock and poultry breeding terminal air purification method in the embodiment is different from the embodiment 1 in the following point: the system comprises a manual working mode, wherein the manual working mode is that a start-stop knob of a control panel on a PLC control box 12 is manually pushed to control a spraying and purifying device, an acid adding component 9, a water adding component 10 and a waste discharging component 11; when the automatic working mode is started, the PLC control box 12 automatically controls the spraying and purifying device, the acid adding component 9, the water adding component 10 and the waste discharging component 11 through a programmable logic control PLC program. The operation process of the manual working mode is consistent with the operation flow of the automatic working mode, the manual working mode has the advantage of flexibility, when equipment is overhauled and maintained and the automatic working mode breaks down, all links of the full purification process can be operated through manual control, and for an operator, the basic logic principle of the operation of the equipment needs to be known in advance under the manual working mode.
The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.
Claims (10)
1. An intensive livestock and poultry breeding tail end air purification device comprises a house body connected with the tail end of a livestock and poultry house, wherein the house body comprises a control room, a purification room and an exhaust room; it is characterized in that the preparation method is characterized in that,
a spraying purification device is arranged between the purification chamber and the exhaust chamber; a control system for controlling the operation of the spraying purification device is arranged in the control room; a fan used for guiding odor in the livestock and poultry house into the purifying chamber is arranged on the wall of the opposite end of the purifying chamber, which is provided with the spraying and purifying device; the spraying purification device comprises a washing curtain arranged between the purification chamber and the exhaust chamber, a liquid storage component used for storing washing liquid and a spraying component used for spraying the washing liquid in the liquid storage component onto the washing curtain; the liquid storage assembly comprises a liquid collecting tank and a liquid storage tank, the liquid collecting tank is arranged below the washing curtain and used for collecting washing liquid sprayed on the washing curtain, the liquid storage tank is arranged in the control chamber, and the liquid collecting tank is communicated with the liquid storage tank; the spraying component is communicated with the liquid storage tank.
2. The intensive livestock and poultry breeding terminal air purification device according to claim 1, wherein the spray assembly comprises a side spray assembly arranged at the side of the washing curtain and an upper end spray assembly arranged at the upper end of the washing curtain; wherein the content of the first and second substances,
the side spraying assembly comprises a side main pipeline, a side branch pipeline, a side nozzle and a side washing pump; one end of the side main pipeline is communicated with the liquid storage tank in the control chamber, the other end of the side main pipeline penetrates through the wall of the control chamber and extends along the side face of the washing curtain in the purification chamber, the side branch pipelines are I-shaped, the middle parts of the side branch pipelines are communicated with the side main pipeline, the side branch pipelines are multiple, the side branch pipelines are uniformly arranged along the side main pipeline, the side nozzles are multiple, and the side nozzles are uniformly arranged at the upper end and the lower end of the side branch pipeline; the side branch pipelines are provided with manual control valves at positions between the side nozzles and the side main pipeline; the side washing pump is arranged in the control chamber and used for pumping the washing liquid in the liquid storage tank to the side main pipe;
the upper end spraying assembly comprises an upper end main pipeline, an upper end nozzle, a normally open type electromagnetic valve and an upper end washing pump; one end of the upper end main pipeline is communicated with the liquid storage tank, the other end of the upper end main pipeline penetrates through the wall of the control chamber and extends along the upper end of the washing curtain in the purification chamber, a plurality of upper end nozzles are arranged in the upper end main pipeline and are uniformly arranged along the upper end main pipeline; the normally open type electromagnetic valve is arranged on the upper end main pipeline; the upper end washing pump is arranged in the control chamber and used for pumping the washing liquid in the liquid storage tank into the upper end main pipeline.
3. The intensive livestock and poultry breeding terminal air purification device according to claim 1 or 2, wherein an acid adding component is arranged in the control room, wherein the acid adding component comprises a sulfuric acid storage tank for storing sulfuric acid, a sulfuric acid conduit and a sulfuric acid pump arranged between the sulfuric acid storage tank and the sulfuric acid conduit; the tail end of the sulfuric acid conduit extends into the liquid storage tank.
4. The intensive livestock and poultry breeding tail end air purification device according to claim 3, wherein a water adding assembly for supplying pure water to a liquid storage tank is arranged in the purification chamber, the water adding assembly comprises a water inlet pipe connected with a water source and a normally closed water supplementing electromagnetic valve arranged on the water inlet pipe, and the tail end of the water inlet pipe is communicated with the liquid storage tank.
5. The intensive livestock and poultry breeding terminal air purification device according to claim 4, wherein a waste discharging component for discharging waste cleaning solution in the liquid storage tank is arranged in the control chamber; the waste discharge assembly comprises a waste discharge pipe, a normally closed waste discharge electromagnetic valve and a sewage pond, wherein the normally closed waste discharge electromagnetic valve is arranged on the waste discharge pipe, the sewage pond is arranged outside the house body, the waste discharge pipe is arranged between the normally open electromagnetic valve and the upper end washing pump, one end of the waste discharge pipe is communicated with the upper end main pipeline, and the other end of the waste discharge pipe is communicated with the sewage pond.
6. The intensive livestock and poultry breeding terminal air purification device according to claim 5, wherein a PLC control box is arranged in the control chamber, a differential pressure sensor for detecting air pressure in the purification chamber is arranged in the purification chamber, the upper end main pipe is provided with an EC value sensor for detecting conductivity and an upper end pipe pressure sensor, the side main pipe is provided with a pH value sensor for detecting pH value and a side pipe pressure sensor, and an ultrasonic liquid level sensor for detecting liquid level of the liquid storage tank is arranged above the liquid storage tank; the PLC control box is respectively connected with the differential pressure sensor, the EC value sensor, the upper end pipe pressure sensor, the pH value sensor, the side pipe pressure sensor, the ultrasonic liquid level sensor, the side washing pump, the normally open type electromagnetic valve, the upper end washing pump, the sulfuric acid pump, the normally closed type water replenishing electromagnetic valve and the normally closed type waste discharge electromagnetic valve through lines to form the control system.
7. The intensive livestock and poultry breeding terminal air purification device according to claim 1, 2, 4, 5 or 6, wherein the number of the fans is multiple, the fans are uniformly arranged along the wall of the purification chamber in the transverse direction, an air guide cover is arranged at the outlet of each fan, and the diameter of the air guide cover is gradually increased towards the washing curtain.
8. The intensive livestock and poultry breeding terminal air purification device according to claim 1, 2, 4, 5 or 6, wherein the bottom surface of the liquid collecting tank is an inclined surface, and the inclined surface gradually rises towards the direction far away from the liquid storage tank.
9. An intensive livestock and poultry breeding tail end air purification method is characterized by comprising an automatic working mode, wherein the automatic working mode comprises the following steps:
(1) starting a fan, and introducing odor in the livestock and poultry house into the purifying chamber through the fan;
(2) the ultrasonic liquid level sensor detects the water level height of washing liquid in the liquid storage tank, when the water level of the washing liquid is lower than a preset height, the normally closed water replenishing electromagnetic valve is opened, water supplied by a water source enters the liquid storage tank through the water inlet pipe until the washing liquid in the liquid storage tank reaches the preset height, and the normally closed water replenishing electromagnetic valve is closed;
(3) the pH value sensor detects the pH value of the washing liquid in the liquid storage tank, when the acidity of the washing liquid is insufficient, the sulfuric acid pump is started, the sulfuric acid in the sulfuric acid tank is conveyed into the liquid storage tank through the sulfuric acid guide pipe, and when the acidity of the washing liquid integrally reaches the degree participating in purification, the sulfuric acid pumping is stopped;
(4) the side washing pump and the upper end washing pump work, a part of washing liquid in the liquid storage tank is conveyed to the side face of the washing curtain through the side washing pump, then is sprayed on the side edge of the washing curtain through the side nozzle, and the other part of washing liquid is conveyed to the upper end of the washing curtain through the upper end washing pump, and then is sprayed on the upper end of the washing curtain through the upper end nozzle; the odor is sprayed and purified on the washing curtain through the washing liquid, and the washing liquid sprayed on the washing curtain flows downwards along the washing curtain under the action of self gravity until flowing into the liquid collecting tank and then flows into the liquid storage tank through the liquid collecting tank; the odor after spraying and purification is discharged into an exhaust chamber through a washing curtain and then is discharged out of the atmosphere through the exhaust chamber;
(5) the pH value sensor and the EC value sensor respectively detect the pH value and the conductivity of the washing liquid, when the washing liquid reaches a waste discharge index, the side washing pump stops running, the normally-closed waste discharge electromagnetic valve is opened, the upper washing pump continues running, then the normally-open electromagnetic valve is closed, and the washing liquid in the liquid storage tank is discharged to the sewage tank through the waste discharge pipe; and (5) after the pollution discharge is finished, executing the step (2) and entering the next cycle.
10. The intensive livestock and poultry breeding terminal air purification method according to claim 9, wherein in the automatic working mode, an economic operation mode or an efficient operation mode is included; when the economic operation mode is started, the sulfuric acid pump does not work, and the washing liquid in the liquid storage tank is pure water; when the high-efficiency operation mode is started, the sulfuric acid pump works, and the washing liquid in the liquid storage tank is prepared by mixing sulfuric acid and pure water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011480700.7A CN112452137A (en) | 2020-12-14 | 2020-12-14 | Intensive livestock and poultry breeding tail end air purification device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011480700.7A CN112452137A (en) | 2020-12-14 | 2020-12-14 | Intensive livestock and poultry breeding tail end air purification device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112452137A true CN112452137A (en) | 2021-03-09 |
Family
ID=74804345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011480700.7A Withdrawn CN112452137A (en) | 2020-12-14 | 2020-12-14 | Intensive livestock and poultry breeding tail end air purification device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112452137A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113080067A (en) * | 2021-04-09 | 2021-07-09 | 华南农业大学 | AI-based poultry house air sterilizing system |
| CN113102452A (en) * | 2021-04-02 | 2021-07-13 | 广东亿云智能环保科技有限公司 | Large-scale kitchen garbage biodegradable treatment facility of recoverable waste heat |
-
2020
- 2020-12-14 CN CN202011480700.7A patent/CN112452137A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102452A (en) * | 2021-04-02 | 2021-07-13 | 广东亿云智能环保科技有限公司 | Large-scale kitchen garbage biodegradable treatment facility of recoverable waste heat |
| CN113080067A (en) * | 2021-04-09 | 2021-07-09 | 华南农业大学 | AI-based poultry house air sterilizing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100951307B1 (en) | Deodorizing System for livestock facility | |
| CN112452137A (en) | Intensive livestock and poultry breeding tail end air purification device and method | |
| KR101681014B1 (en) | An apparatus for processing malodor gas | |
| CN203108434U (en) | Composite biofilter deodorizing device | |
| CN108144386A (en) | A kind of method of poultry house air multistage cleaning deodorization | |
| CN214552468U (en) | Intensive livestock and poultry breeding terminal air purification device | |
| CN207733438U (en) | A kind of duck culturing house | |
| CN206152614U (en) | Air washing deodorization system of plant | |
| CN213326886U (en) | Colony house fecaluria acidizing device | |
| CN104756884B (en) | Cultivation, purification integrative environmentally-friendly type poultry room | |
| CN207970666U (en) | A kind of aquaculture foul waste gas processing unit | |
| CN217287891U (en) | Deodorization clean system is used in poultry | |
| CN211035734U (en) | Double-deck canopy membrane structure slot type compost system | |
| CN212262890U (en) | Fertilizer deodorization system | |
| CN114713024A (en) | Special dust removal deodorization system in chicken farm | |
| CN115301032A (en) | Full-automatic medium-large chicken farm ecological environment purifying system | |
| CN111587812A (en) | Air purification device for henhouse | |
| CN206746306U (en) | A kind of refuse landfill odor treating device | |
| CN207401342U (en) | Deodoration system | |
| CN218307036U (en) | Integrated deodorization system for building cultivation | |
| CN220343169U (en) | Three-dimensional breeding device of live pig | |
| CN215196264U (en) | A deodorization system for beasts and birds plant | |
| CN219333783U (en) | Biological deodorization filtering pond device | |
| CN214178521U (en) | Automatic air-purifying's canopy of raising cattle | |
| CN211188439U (en) | Air purification device for livestock and poultry house |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210309 |
|
| WW01 | Invention patent application withdrawn after publication |