Air purification device for slaughter workshop

Abstract

The invention discloses a slaughter workshop air purification device, and relates to the technical field of air purification treatment, the slaughter workshop air purification device comprises a tunnel-shaped box body, the interior of the box body is sequentially provided with a primary filtering assembly, a secondary filtering assembly, a washing assembly, a packed bed assembly, a wire mesh demister and a centrifugal fan from an air inlet to an air outlet; a lifting mechanism is arranged on the upper portion of the box body, a walking trolley is arranged on the track, the washing assembly is arranged on the walking trolley and comprises a washing pipe and a first flushing pipe, and a switching mechanism is arranged on the walking trolley. Pollutants in the slaughter workshop can be removed through multi-stage filtration and purification, so that the purification effect is greatly improved, the positive transformation of the equipment from regular shutdown and high-strength manual disassembly and washing to automatic maintenance and deep cleaning as required is realized, the original purification efficiency of filtration and filling can be continuously recovered, and the service life of the equipment is prolonged. Manual operation risks and labor intensity can be greatly reduced, and stable and efficient operation of equipment in the whole life cycle is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of air purification technology, and more particularly to an air purification device for slaughterhouses. Background Technology

[0002] Slaughterhouses generate large amounts of foul-smelling gases during production, primarily originating from the waiting area, slaughterhouse, and wastewater treatment plant. Air pollutants in slaughterhouses mainly include: grease aerosols, blood mist, hair, dust, odors (ammonia, hydrogen sulfide, amines, etc.), and potential microorganisms. These gases are not only harmful to human health but also negatively impact air quality within the factory area, the outdoor environment, nearby residents, and cause corrosion to equipment. Therefore, comprehensive odor control in slaughterhouses to ensure emissions meet standards is crucial for creating an environmentally friendly slaughtering industry.

[0003] However, traditional air handling equipment in slaughterhouses can only perform simple gas filtration, and its deep purification effect is generally limited. It is difficult to effectively remove various pollutants, so the discharged gas still contains certain pollutants. Moreover, the equipment needs to be cleaned regularly by hand, which is time-consuming, labor-intensive, and requires significant labor costs. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of the general effect of air purification in slaughterhouses and the difficulty in cleaning the equipment in the prior art, and to propose an air purification device for slaughterhouses.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An air purification device for a slaughterhouse includes a tunnel-shaped housing with an air inlet and an air outlet at each end. Inside the housing, from the air inlet to the air outlet, are sequentially arranged a primary filter assembly, a secondary filter assembly, a washing assembly, a packing bed assembly, a wire mesh demister, and a centrifugal fan. A lifting mechanism is located at the top of the housing. A track is fixedly connected along the length of the housing, and a trolley is mounted on the track. The washing assembly is mounted on the trolley and includes a washing pipe for washing the air and a first flushing pipe for cleaning the primary and secondary filter assemblies. A switching mechanism is provided on the trolley for switching the positions of the primary and secondary filter assemblies.

[0006] In some embodiments, the primary filter assembly includes a baffle and a plurality of wedge-shaped extension frames. The baffle is fixedly connected to the housing and is used to separate the air inlet from the extension frames. The plurality of extension frames are fixed to the baffle in a linear array, and an exhaust gap is left between two adjacent extension frames. The interior of the extension frame is provided with a filter chamber with an open outer side, and two symmetrically distributed mounting grooves are provided on the wedge-shaped inclined surface of the outer surface of the extension frame. Both mounting grooves are provided with coarse filter screens.

[0007] In some embodiments, a drain groove is provided on the lower surface of the extension frame, a first sealing plate is provided inside the drain groove, a first hinge is provided between the first sealing plate and the extension frame, and a first connecting rod is connected between several first sealing plates. A through groove is provided on the upper surface of the extension frame, a second sealing plate connected to the lifting mechanism is inserted into the through groove, and a second connecting rod is connected between several second sealing plates.

[0008] In some embodiments, the baffle is provided with a linkage mechanism, which includes a fixed box fixedly connected to the baffle and a pull rod and a first pressure rod slidably connected to the baffle. The fixed box is rotatably connected to a driven gear, and a lower rack and an upper rack are respectively meshed on both sides of the driven gear. The pull rod is L-shaped and fixed to the lower rack, and the pull rod abuts against the lower surface of the first connecting rod. The first pressure rod is inverted L-shaped and fixed to the upper rack, and the first pressure rod abuts against the lower surface of the second connecting rod.

[0009] In some embodiments, the secondary filtration assembly includes a mounting frame and a first movable plate connected to a lifting mechanism. A plurality of filter plates arranged in a rectangular array are fixedly connected to the mounting frame. A plurality of clearance gaps are provided on the mounting frame. Two symmetrically distributed sealing doors are connected to the clearance gaps via a second hinge. The first movable plate is slidably connected to the upper part of the housing and abuts against the upper surface of the mounting frame.

[0010] In some embodiments, the lower part of the clearance gap is provided with an opening and closing mechanism connected to the sealing door. The opening and closing mechanism includes a fixed plate fixed to the lower part of the clearance gap and a second pressure rod slidably connected to the mounting bracket. An extension rod is fixedly connected to the outside of the fixed plate, and a rotating rod is rotatably connected to the extension rod. A counterweight is fixedly connected to the outer end of the rotating rod, and a rectangular transmission groove is opened at the lower part of the rotating rod. A push rod is slidably inserted into the transmission groove, and both ends of the push rod are rotatably connected to transmission rods. The ends of the two transmission rods away from the push rod are respectively hinged to the two sealing doors. A reset rod that abuts against the upper surface of the rotating rod is fixedly connected to the lower part of the second pressure rod.

[0011] In some embodiments, the switching mechanism includes a rotating disk rotatably connected to a traveling trolley and a servo motor fixed to the traveling trolley. The washing pipe and the first rinsing pipe are both fixed to the rotating disk, and a gear ring is fixedly connected to the outside of the rotating disk. The output end of the servo motor is driven by a drive gear that meshes with the gear ring.

[0012] In some embodiments, the liquid supply mechanism includes a liquid supply hose and two distribution pipes. One distribution pipe is connected to a washing pipe and the other distribution pipe is connected to a first flushing pipe. One end of the liquid supply hose is fixedly connected to a tee. One distribution pipe is connected to one outlet of the tee and the other distribution pipe is connected to the other outlet of the tee. Both connecting pipes are equipped with a first solenoid valve. A second flushing pipe is fixed on the side of the traveling trolley near the secondary filtration component, and an infusion pipe is connected between the distribution pipe connected to the first flushing pipe and the second flushing pipe.

[0013] In some embodiments, a protective box is fixedly connected to the housing, and a traveling trolley is located inside the protective box. The protective box is open on the side near the secondary filter component. A second movable plate is slidably connected to the upper part of the housing and abuts against the opening of the protective box. The second movable plate is connected to a lifting mechanism. A clearance groove adapted to the rotating disk is provided at the lower part of the opening of the protective box. A third sealing plate adapted to the clearance groove is fixedly connected to one side of the traveling trolley.

[0014] In some embodiments, the lifting mechanism includes a lifting frame and hydraulic cylinders. The lifting frame is slidably connected to the upper part of the housing, and there are several hydraulic cylinders, each fixed to the housing. The extension and retraction ends of the several hydraulic cylinders are all fixed to the lifting frame.

[0015] Compared with the prior art, the present invention provides an air purification device for slaughterhouses, which has the following beneficial effects: 1. Through multi-stage filtration and purification, pollutants in the slaughterhouse can be removed, greatly improving the purification effect and effectively improving the working environment. This reduces the risk of employees being exposed to inhalable particulate matter, pathogenic microorganisms, and toxic and malodorous gases, reducing occupational health hazards. At the same time, it ensures that exhaust emissions meet standards continuously and stably, avoiding impacts and corrosion on the air quality of the factory area, the outdoor environment, nearby residents, and equipment. 2. Through the setting of the primary filter component, since the filter chamber is wedge-shaped and the coarse filter screen is also tilted along the airflow direction, the intercepted hair, large debris and larger oil droplets will enter the innermost part of the filter chamber under the flushing of the airflow. Therefore, it can play a certain self-cleaning role for the coarse filter screen, avoid excessive impurities adhering to the coarse filter screen, and thus extend the cleaning cycle to a certain extent. 3. Through the coordinated design of the traveling trolley, washing components, and liquid supply mechanism, the equipment has achieved a positive transformation from "periodic shutdown and high-intensity manual disassembly and cleaning" to "automatic maintenance and on-demand deep cleaning". This not only continuously restores the original purification efficiency of the filter and packing material and prevents performance degradation caused by dirt accumulation, but also significantly reduces the risks and labor intensity of manual operation, ensuring stable and efficient operation throughout the entire life cycle of the equipment. At the same time, it significantly reduces the consumption of chemical cleaning agents and wastewater discharge, truly achieving a triple optimization of purification efficiency, operating costs, and maintenance safety. 4. Through the coordinated design of the lifting mechanism and the linkage mechanism, when the primary filter component needs to be cleaned, the lifting mechanism can automatically open the drain tank and the through tank by raising it, and at the same time open the upper space of the primary filter component to facilitate the movement of the trolley and the cleaning of the primary filter component. After cleaning, the lifting mechanism will automatically reset the above parts to prevent affecting the subsequent purification work. This achieves the purpose of automatically opening and closing the above components without manual operation, effectively improving work efficiency. 5. Through the coordinated design of the lifting mechanism and the opening and closing mechanism, when the secondary filter component needs to be cleaned, the lifting mechanism can automatically open the clearance by raising to facilitate the passage of the first flushing pipe. After cleaning, the clearance will automatically close as the lifting mechanism resets, further improving the automation level and practicality of the device. 6. Through the coordinated design of the lifting mechanism, protective box, and traveling trolley, the lifting mechanism will automatically open the protective box when it is raised to facilitate the movement of the traveling trolley. When the traveling trolley is reset, the lifting mechanism will automatically close the protective box, preventing detergent from entering the protective box during air washing and affecting the traveling trolley and related components, thus ensuring the normal service life and normal operation of the equipment.

[0016] Other advantages, objectives and features of the invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be learned from practice of the invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a partial cross-sectional view of the present invention. Figure 2 This is a frontal three-dimensional structural diagram of the present invention; Figure 3 This is a side sectional view of the primary filter assembly. Figure 4 This is a side sectional view of the secondary filter assembly. Figure 5This is a frontal three-dimensional structural diagram of the lifting mechanism; Figure 6 This is a side view of the three-dimensional structure of the primary filter assembly; Figure 7 This is a front sectional view of the primary filter assembly. Figure 8 This is a top-view cross-sectional structural diagram of the primary filter assembly; Figure 9 This is a three-dimensional structural diagram of the linkage mechanism; Figure 10 This is a side view of the three-dimensional structure of the secondary filter assembly; Figure 11 for Figure 10 Enlarged structural diagram at point A in the middle; Figure 12 This is a top-view cross-sectional structural diagram of the opening and closing mechanism. Figure 13 This is a partial side sectional view of the mounting bracket. Figure 14 This is a frontal 3D structural diagram of the moving trolley. Figure 15 This is a schematic diagram of the front sectional view of the traveling trolley.

[0018] In the diagram: 1. Housing; 101. Air inlet; 102. Air outlet; 103. Inspection door; 104. Observation window; 2. Primary filter assembly; 201. Baffle; 202. Extension frame; 203. Filter chamber; 204. Mounting slot; 205. Coarse filter screen; 206. Exhaust gap; 207. Drainage trough; 208. First sealing plate; 209. First connecting rod; 2010. First hinge; 2011. Through groove; 2012. Second sealing plate; 2013. Second connecting rod; 2014. Sliding rod; 3. Secondary filter assembly; 301. Mounting frame; 3 02. Filter plate; 304. First movable plate; 305. Clearance clearance; 306. Sealing door; 307. Second hinge; 308. Sealing strip; 309. Slide groove; 4. Washing assembly; 401. Washing pipe; 402. Atomizing nozzle; 403. First flushing pipe; 404. First flushing nozzle; 405. Second flushing pipe; 406. Second flushing nozzle; 5. Packing bed assembly; 6. Wire mesh demister; 7. Centrifugal fan; 8. Linkage mechanism; 801. Fixed box; 802. Pull rod; 803. First pressure rod; 804. Driven gear; 805. Lower rack 806. Upper rack; 9. Opening and closing mechanism; 901. Fixed plate; 902. Extension rod; 903. Rotating rod; 904. Counterweight; 906. Transmission groove; 907. Transmission rod; 908. Push rod; 909. Second pressure rod; 9010. Reset rod; 9011. Guide pin; 10. Traveling trolley; 1001. Frame; 1002. Traveling wheel; 1003. Traveling motor; 1004. Guard plate; 1005. Third sealing plate; 11. Track; 12. Switching mechanism; 1201. Rotating disk; 1202. Gear ring; 1203. Drive gear; 1204 Servo motor; 13 Liquid supply mechanism; 1301 Liquid supply hose; 1302 Distribution pipe; 1303 Connecting pipe; 1304 T-junction; 1305 First solenoid valve; 1306 Hose; 1307 Infusion pipe; 14 First collection tray; 15 Second collection tray; 16 Third collection tray; 17 Drain pipe; 18 Connecting pipe; 19 Second solenoid valve; 20 Protective box; 2001 Second movable plate; 2002 Clearance groove; 2003 Limit switch; 21 Lifting mechanism; 2101 Lifting frame; 2102 Hydraulic cylinder. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Reference Figure 1 and Figure 2An air purification device for a slaughterhouse includes a tunnel-shaped housing 1. Air inlets 101 and outlets 102 are located at both ends of the housing 1. Both air inlets 101 and outlets 102 are equipped with rainproof louvers and bird netting. Inspection doors 103 are located outside the housing 1, outside the primary filter assembly 2, outside the washing assembly 4, and outside the centrifugal fan 7. Inspection doors 103 are equipped with observation windows 104 for easy internal observation. Inside the housing 1, from the air inlet 101 to the outlet 102, are sequentially arranged the primary filter assembly 2, the secondary filter assembly 3, the washing assembly 4, the packing bed assembly 5, the wire mesh demister 6, and the centrifugal fan 7. The packing bed assembly 5 is filled with activated carbon fiber packing. The outlet of the centrifugal fan 7 is connected to the outlet 102. A lifting mechanism 21 is located at the top of the housing 1. A track 11 is fixedly connected inside the box 1 along the length direction. A trolley 10 is provided on the track 11, and the washing component 4 is provided on the trolley 10. The washing assembly 4 includes five washing pipes 401 for washing the air and five first flushing pipes 403 for cleaning the primary filter assembly 2 and the secondary filter assembly 3. Four atomizing nozzles 402 are installed on each washing pipe 401, and eight first flushing nozzles 404 are installed on each first flushing pipe 403, arranged in four groups. The traveling trolley 10 is equipped with five switching mechanisms 12. One washing pipe 401 forms a group with an adjacent first flushing pipe 403 and is connected to the corresponding switching mechanism 12. The switching mechanism 12 can be used to switch the positions of the primary filter assembly 2 and the secondary filter assembly 3.

[0021] Reference Figure 3 as well as Figure 6-9 The primary filter assembly 2 includes a baffle 201 and four wedge-shaped extension frames 202. The baffle 201 is fixedly connected inside the housing 1 to separate the air inlet 101 from the extension frames 202. The four extension frames 202 are fixed to the baffle 201 in a linear array, and an exhaust gap 206 is left between two adjacent extension frames 202. The interior of the extension frame 202 is provided with a filter chamber 203 with an open outer side, and two symmetrically distributed mounting grooves 204 are provided on the wedge-shaped inclined surface of the outer surface of the extension frame 202. Both mounting grooves 204 are provided with coarse filter screens 205.

[0022] The lower surface of the extension frame 202 is provided with a drain trough 207. The drain trough 207 is provided with a first sealing plate 208. A first hinge 2010 is provided between the first sealing plate 208 and the extension frame 202. A first connecting rod 209 is connected between the four first sealing plates 208. The upper surface of the extension frame 202 is provided with a through groove 2011. A second sealing plate 2012 is inserted into the through groove 2011. A second connecting rod 2013 is connected between the four second sealing plates 2012. A sliding rod 2014 connected to the lifting mechanism 21 is fixedly installed on the upper surface of the second sealing plate 2012. The sliding rod 2014 is slidably installed on the upper part of the housing 1. A first sealing ring is fixed on the housing 1 and sleeved on the outside of the sliding rod 2014 to seal the sliding connection.

[0023] A linkage mechanism 8 is provided on the baffle 201. The linkage mechanism 8 includes a fixed box 801 fixedly connected to the baffle 201 and a pull rod 802 and a first pressure rod 803 slidably connected to the baffle 201. A driven gear 804 is rotatably connected inside the fixed box 801. A lower rack 805 and an upper rack 806 are respectively meshed on both sides of the driven gear 804. The lower rack 805 and the upper rack 806 are slidably installed inside the fixed box 801. The pull rod 802 is L-shaped and fixed to the lower rack 805. The pull rod 802 abuts against the lower surface of the first connecting rod 209. The first pressure rod 803 is inverted L-shaped and fixed to the upper rack 806. The first pressure rod 803 abuts against the lower surface of the second connecting rod 2013.

[0024] Reference Figure 4 as well as Figure 10-13 There are two secondary filter components 3, and each secondary filter component 3 includes a mounting frame 301 and a first movable plate 304 connected to the lifting mechanism 21. Several filter plates 302 arranged in a rectangular array are fixedly connected to the mounting frame 301. The filter plates 302 are multi-layer sintered metal filter plates. Five clearance gaps 305 are opened on the mounting frame 301, which are respectively corresponding to the washing pipe 401. Two symmetrically distributed sealing doors 306 are connected in the clearance gaps 305 through the second hinge 307. The first movable plate 304 is slidably connected to the upper part of the box 1 and abuts against the upper surface of the mounting frame 301. Moreover, a second sealing ring is fixed on the box 1 and sleeved on the outside of the box 1 to seal the sliding connection.

[0025] The lower part of the clearance 305 is provided with an opening and closing mechanism 9 connected to the sealing door 306. The opening and closing mechanism 9 includes a fixed plate 901 fixed to the lower part of the clearance 305 and a second pressure rod 909. An extension rod 902 is fixedly connected to the outside of the fixed plate 901. A rotating rod 903 is rotatably connected to the extension rod 902. A counterweight 904 is fixedly connected to the outer end of the rotating rod 903. A rectangular transmission groove 906 is opened at the lower part of the rotating rod 903. A push rod 908 is slidably inserted into the transmission groove 906. Both ends of the push rod 908 are rotatably connected to transmission rods 907. A connecting groove adapted to the fixed plate 901 is opened on the fixed plate 901. The two transmission rods 907 are far away from each other. One end of the push rod 908 passes through the connecting groove and is hinged to the two sealing doors 306. The upper end of the second pressure rod 909 abuts against the lower surface of the first movable plate 304, and the second pressure rod 909 is slidably installed inside the mounting bracket 301. A guide pin 9011 is fixedly connected to the mounting bracket 301 and abuts against the outer surface of the second pressure rod 909 to guide the up and down sliding of the second pressure rod 909. The lower part of the second pressure rod 909 is fixedly connected to the reset rod 9010. The lower part of the mounting bracket 301 is provided with a sliding groove 309 that matches the reset rod 9010. The reset rod 9010 extends out of the mounting bracket 301 through the sliding groove 309 and abuts against the upper surface of the rotating rod 903.

[0026] Reference Figure 1 , Figure 14 and Figure 15 The traveling trolley 10 includes a frame 1001, on which four traveling wheels 1002 are mounted for traveling on tracks 11. Two servo motors 1204 are also mounted on the frame 1001, and each servo motor 1204 is connected to one of the two traveling wheels 1002 for transmission. A guard plate 1004 is fixedly mounted on the lower part of the frame 1001.

[0027] A protective box 20 is fixedly connected inside the housing 1. A traveling trolley 10 is located inside the protective box 20. The protective box 20 is open on the side near the secondary filter component 3. A second movable plate 2001 is slidably connected to the upper part of the housing 1 and abuts against the opening of the protective box 20. The second movable plate 2001 is connected to the lifting mechanism 21. A third sealing ring is fixed on the housing 1 and sleeved on the outside of the second movable plate 2001 to seal the sliding connection. A clearance groove 2002 adapted to the rotating disk 1201 is provided at the lower part of the opening of the protective box 20. A third sealing plate 1005 adapted to the clearance groove 2002 is fixedly connected to one side of the protective plate 1004.

[0028] The switching mechanism 12 includes a rotating disk 1201 rotatably connected to the guard plate 1004 and a servo motor 1204 fixed to the guard plate 1004. The washing pipe 401 and the first rinsing pipe 403 are both fixed to the rotating disk 1201, and a gear ring 1202 is fixedly connected to the outside of the rotating disk 1201. The output end of the servo motor 1204 is driven by a drive gear 1203 that meshes with the gear ring 1202. The drive gear 1203 is rotatably mounted on the guard plate 1004.

[0029] The liquid supply mechanism 13 includes a liquid supply hose 1301 and two distribution pipes 1302. One distribution pipe 1302 is connected to the washing pipe 401 and the other distribution pipe 1302 is connected to the first flushing pipe 403. One end of the liquid supply hose 1301 is fixedly connected to a tee 1304, which is fixed to the guard plate 1004. One distribution pipe 1302 is connected to one outlet of the tee 1304 and the other distribution pipe 1302 is connected to the other outlet of the tee 1304. Both connecting pipes 1303 are equipped with a first solenoid valve 1305. A second flushing pipe 405 is fixed on the side of the traveling trolley 10 near the secondary filter assembly 3. A second flushing nozzle 406 is installed on the second flushing pipe 405. A delivery pipe 1307 is connected between the distribution pipe 1302, which is connected to the first flushing pipe 403, and the second flushing pipe 405.

[0030] Reference Figure 5 The lifting mechanism 21 includes a lifting frame 2101 and a hydraulic cylinder 2102. The lifting frame 2101 is slidably connected to the upper part of the housing 1. There are several hydraulic cylinders 2102, which are respectively fixed on the housing 1. The telescopic ends of the several hydraulic cylinders 2102 are all fixed to the lifting frame 2101. The sewage trough 207, the first movable plate 304 and the second movable plate 2001 are all fixedly installed on the lower part of the lifting frame 2101.

[0031] Reference Figure 1-4 Inside the housing 1, a first collection tray 14 is installed below the primary filter assembly 2, a second collection tray 15 is installed below the secondary filter assembly 3, and a third collection tray 16 is installed below the washing assembly 4. A drain pipe 17 is also installed at the bottom of the housing 1. Connecting pipes 18 are installed between the first collection tray 14, the second collection tray 15, and the third collection tray 16 and the drain pipe 17, and a second solenoid valve 19 is installed on each of the three connecting pipes 18.

[0032] In this invention, the outer end of the liquid supply hose 1301 is initially connected to an external washing liquid tank, which contains oxidizing washing liquid. The first solenoid valve 1305 connected to the washing pipe 401 is in the open state, and the other first solenoid valve 1305 is in the closed state. At this time, the washing pipe 401 and the atomizing nozzle 402 are both facing the secondary filter assembly 3, and the second solenoid valve 19 is also in the closed state.

[0033] When air purification is performed in the slaughterhouse, turning on the centrifugal fan 7 creates negative pressure inside the housing 1, which draws polluted air from the slaughterhouse into the housing 1 through the air inlet 101. After entering the housing 1, the air first enters the filter chamber 203 and undergoes coarse filtration through the coarse filter 205 before passing through the exhaust gap 206 into the secondary filter assembly 3. During this process, the coarse filter 205 filters the air, intercepting hair, large debris, and larger oil droplets. Because the filter chamber 203 is wedge-shaped and the coarse filter 205 is tilted along the airflow direction, the intercepted hair, large debris, and larger oil droplets are flushed into the innermost part of the filter chamber 203 by the airflow, thus providing a self-cleaning effect for the coarse filter 205.

[0034] The air entering the secondary filter component 3 will undergo secondary fine filtration under the filtration of filter plate 302. At this time, small particles, small oil mists and some odors in the air can be filtered, thereby further removing pollutants in the air. Then, air enters the washing assembly 4. At this time, the external delivery pump pumps the oxidizing washing liquid into the supply hose 1301, and delivers it through one of the outlets of the three-way valve 1304 to the distribution pipe 1302 connected to the washing pipe 401. The distribution pipe 1302 then delivers the washing liquid to the washing pipe 401 through the hose 1306, and finally sprays it onto the flowing air through the atomizing nozzle 402. At this time, the oxidizing washing liquid can chemically wash the air. Since the main component of the oxidizing washing liquid is sodium hypochlorite solution, it can oxidize and decompose pollutants such as hydrogen sulfide, mercaptans, and aldehydes. It can also react with ammonia in the air to generate chloramine, which has a certain ammonia removal effect. At the same time, it can also perform strong sterilization and disinfection to prevent biofilm from growing in the system. Therefore, through the gas-liquid contact that occurs during the washing process, pollutants are transferred from the gas phase to the liquid phase and neutralized or decomposed through chemical reactions, thus removing pollutants once again.

[0035] The gas then enters the subsequent packed bed assembly 5, passing through the activated carbon fiber packing within it. Through its large specific surface area and microporous structure, the activated carbon fiber packing acts like a sponge, capturing and locking odorous gas molecules (such as thiols, indole, aldehydes, etc.) within its pores, effectively removing pollutants. The air then continues to pass through the wire mesh demister 6, which removes moisture from the air. Finally, the air is extracted by the centrifugal fan 7 and discharged through the outlet 102, thus completing the entire air purification process.

[0036] When it is necessary to clean the coarse filter screen 205 and the filter plate 302, firstly connect the outer end of the supply hose 1301 to the flushing liquid tank, which contains alkaline detergent. Then open the first solenoid valve 1305 connected to the first flushing pipe 403 and close the other first solenoid valve 1305. Then start the servo motor 1204 to drive the drive gear 1203 to rotate a certain number of times. At this time, the drive gear 1203 can drive the rotating disk 1201 and the washing pipe 401 and the first flushing pipe 403 to rotate 180 degrees around the axis of the rotating disk 1201 through the gear ring 1202. At this time, the first flushing pipe 403 and the first flushing nozzle 404 can be rotated to the side facing the secondary filter component 3. Then, the hydraulic cylinder 2102 is activated, causing its telescopic end to push the lifting frame 2101 upward to a certain height. At this time, the lifting frame 2101 can drive the sliding rod 2014, the second sealing plate 2012, the second connecting rod 2013, the first movable plate 304, and the second movable plate 2001 to rise to a certain height. At this time, the second sealing plate 2012 is pulled out of the through groove 2011 and separates, opening the through groove 2011. Simultaneously, due to the rise of the second connecting rod 2013, the restriction on the first pressure rod 803 is released. Therefore, at this time, the first sealing plate 208 and the first connecting rod 2001 are... Under its own weight, the connecting rod 209 will rotate downward at a certain angle via the first hinge 2010, thereby opening the drain trough 207. At the same time, the downward pressure of the first connecting rod 209 will drive the pull rod 802 and the lower rack 805 to slide down a certain distance. The lower rack 805 will then drive the upper rack 806 and the first pressure rod 803 to slide upward a certain distance via the driven gear 804, in preparation for the subsequent resetting of the first sealing plate 208. At this time, the upper space of the primary filter assembly 2 can be opened so that the traveling trolley 10 can travel to that location.

[0037] The upward movement of the first movable plate 304 not only opens the upper space of the secondary filter assembly 3, facilitating the movement of the trolley 10 to that location and through, but also releases the downward pressure restriction of the first movable plate 304 on the second pressure rod 909. During this process, the counterweight 904, under its own weight, can press down on the rotating rod 903 to rotate around the axis between it and the extension rod 902 by a certain angle. At this time, the rotating rod 903 can push the push rod 908 through the transmission groove 906. The push rod 908 then pushes the two sealing doors 306 through the transmission rod 907 to rotate and open through the second hinge 307, thereby opening the clearance gap 305 to facilitate the passage of the first flushing pipe 403. At the same time, the rotating rod 903 can push the second pressure rod 909 upward through the reset rod 9010 to slide, thereby making the upper end of the second pressure rod 909 higher than the upper surface of the mounting bracket 301 by a certain distance, so as to facilitate subsequent reset. Moreover, since this distance is small, it will not obstruct the movement of the trolley 10.

[0038] Then the walking motor 1003 can be started to drive the walking trolley 10 to travel a certain distance along the track 11 until the first flushing pipe 403 and the first flushing nozzle 404 are located on the side of the filter plate 302 facing the packing bed assembly 5, and the second flushing pipe 405 and the second flushing nozzle 406 are located above the other side of the filter plate 302. At this time, the first flushing nozzle 404 and the second flushing nozzle 406 are facing the left and right sides of the filter plate 302 respectively. Then, the flushing liquid is pumped into the supply hose 1301 again by an external pump, and then enters the distribution pipe 1302 connected to the first flushing pipe 403 through the tee 1304 and the connecting pipe 1303. It then enters the first flushing pipe 403 and the second flushing pipe 405 respectively, and is finally sprayed out to the left and right sides of the filter plate 302 through the first flushing nozzle 404 and the second flushing nozzle 406. The water flow from the first flushing nozzle 404 can backwash the filter plate 302, flushing the impurities on the filter plate 302 towards the side closer to the primary filter component 2. The cleaning liquid sprayed from the second flushing nozzle 406 can flush the filter plate 302 diagonally downwards, and flush the impurities flushed out by the first flushing nozzle 404 downwards into the lower second collection plate 15 and the third collection plate 16. At this time, the second solenoid valve 19 is opened, and the sewage can be discharged out of the device through the drain pipe 17.

[0039] After the filter plate 302 is cleaned, the cleaning stops and it is moved above the primary filter assembly 2 by the traveling trolley 10. During this process, the first flushing pipe 403 will also pass through the clearance gap 305 and enter the exhaust gap 206. The first flushing nozzle 404 is also facing the outside of the coarse filter screen 205, while the second flushing pipe 405 is just above the through groove 2011, and the second flushing nozzle 406 is also facing the inside of the coarse filter screen 205. Then, the rinsing fluid is pumped into the supply hose 1301 again by the external pump. At this time, the cleaning fluid sprayed from the first rinsing nozzle 404 can be sprayed towards the outside of the coarse filter screen 205 and flush the impurities on the coarse filter screen 205 to the inside. Then, the water flow sprayed from the second rinsing nozzle 406 can flush the impurities on the inside of the coarse filter screen 205 downwards, and at the same time, it will flush away the impurities at the very inside of the filter chamber 203. At this time, the rinsing fluid and impurities flushed down can fall into the first collection tray 14 through the pre-opened drain trough 207, and finally be discharged through the drain pipe 17.

[0040] After cleaning the coarse filter 205, the cleaning can be stopped, and the trolley 10, the first flushing pipe 403, and the second flushing pipe 405 can be moved back to their original positions. During this process, the trolley 10 will move back into the protective box 20, and the protective plate 1004 and the third sealing plate 1005 will also reset and block the upper opening of the clearance groove 2002. Moreover, since a limit switch 2003 electrically connected to the walking motor 1003 is installed on the inner wall of the protective box 20 away from the opening, it prevents the trolley 10 from overtraveling when resetting and avoids collisions. Then, the lifting frame 2101 is controlled to reset downwards by the hydraulic cylinder 2102. During this process, the second movable plate 2001 will slide back to the opening of the protective box 20. Therefore, the lower part and the outer perimeter of the protective box 20 can be sealed to prevent the medicine for atomizing and washing the air from entering the protective box 20 and affecting the trolley 10.

[0041] Furthermore, when the lifting frame 2101 resets downwards, it also drives the second sealing plate 2012, the second connecting rod 2013, the sliding rod 2014, and the first movable plate 304 to reset, thereby sealing and closing the through groove 2011 and closing the upper space of the secondary filter assembly 3 to facilitate subsequent filtration. The reset of the second connecting rod 2013 can also press down on the first pressure rod 803 to reset. The first pressure rod 803 then drives the pull rod 802 to slide upwards and reset via the upper rack 806, the driven gear 804, and the lower rack 805. The pull rod 802 then rotates the first sealing plate 208 back into the drain trough 207 via the first connecting rod 209, thereby sealing the drain trough 207 as well.

[0042] The reset of the first movable plate 304 can also press down the second pressure rod 909 to reset. The second pressure rod 909 then presses the rotating rod 903 to reset via the reset rod 9010. The rotating rod 903 then closes and resets the sealing door 306 via the transmission groove 906, the push rod 908, and the transmission rod 907, thereby closing the clearance gap 305 again. During the closing of the two sealing doors 306, the sealing strip 308 fixedly installed on the edge of one of the sealing doors 306 will abut against the contact point of the two sealing doors 306, thus playing a sealing role and preventing air leakage during purification and filtration.

[0043] This completes the automatic cleaning of the primary filter element 2 and the secondary filter element 3, making the cleaning process automatic and eliminating the need for manual disassembly and cleaning. This greatly saves manpower and resources, improves work efficiency, and reduces the required labor costs.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A kind of slaughter plant air purification device, including tunnel-like box (1), the two ends of box (1) are equipped with air inlet (101) and air outlet (102) respectively, it is characterized by: The inside of the box (1) is sequentially provided with a primary filter assembly (2), a secondary filter assembly (3), a washing assembly (4), a filler bed assembly (5), a wire mesh demister (6) and a centrifugal fan (7) from the air inlet (101) to the air outlet (102), and the upper portion of the box (1) is provided with a lifting mechanism (21); The box (1) is fixedly connected with a track (11) along the length direction, the track (11) is provided with a walking trolley (10), and the washing assembly (4) is arranged on the walking trolley (10); The washing assembly (4) comprises a washing pipe (401) for washing air and a first flushing pipe (403) for cleaning the primary filter assembly (2) and the secondary filter assembly (3), and the walking trolley (10) is provided with a switching mechanism (12) for switching the positions of the primary filter assembly (2) and the secondary filter assembly (3).

2. The abattoir air purification apparatus defined in claim 1, characterised in that: The primary filter assembly (2) comprises a baffle (201) and a plurality of wedge-shaped extension frames (202), the baffle (201) is fixedly connected in the box (1) and is used for separating the air inlet (101) from the extension frames (202), the plurality of extension frames (202) are linearly arranged on the baffle (201) in sequence, and an exhaust gap (206) is arranged between adjacent two extension frames (202), the inside of the extension frame (202) is provided with a filter cavity (203) with an open outer side, and two symmetrically distributed mounting grooves (204) are arranged on the wedge-shaped inclined surface of the outer surface of the extension frame (202), and the two mounting grooves (204) are both provided with coarse filter screens (205).

3. The abattoir air cleaning device according to claim 2, characterised in that: The lower surface of the extension frame (202) is provided with a blowdown groove (207), the inside of the blowdown groove (207) is provided with a first sealing plate (208), a first hinge (2010) is arranged between the first sealing plate (208) and the extension frame (202), a first connecting rod (209) is connected between the plurality of first sealing plates (208), the upper surface of the extension frame (202) is provided with a through groove (2011), the inside of the through groove (2011) is inserted with a second sealing plate (2012) connected with the lifting mechanism (21), and the plurality of second sealing plates (2012) are connected with a second connecting rod (2013).

4. The abattoir air cleaning device of claim 3, wherein: The baffle (201) is provided with a linkage mechanism (8), the linkage mechanism (8) comprises a fixed box (801) fixedly connected to the baffle (201), a pull rod (802) and a first pressing rod (803) which are both slidingly connected to the baffle (201), the inside of the fixed box (801) is rotatably connected with a driven gear (804), the two sides of the driven gear (804) are respectively meshingly connected with a lower rack (805) and an upper rack (806), the pull rod (802) is L-shaped and fixed to the lower rack (805), and the pull rod (802) abuts against the lower surface of the first connecting rod (209), the first pressing rod (803) is inverted L-shaped and fixed to the upper rack (806), and the first pressing rod (803) abuts against the lower surface of the second connecting rod (2013).

5. The abattoir air purification apparatus defined in claim 1, characterised in that: The secondary filter assembly (3) comprises a mounting frame (301) and a first movable plate (304) connected with a lifting mechanism (21), the mounting frame (301) is fixedly connected with a plurality of filter plates (302) arranged in a rectangular array, a plurality of avoiding gaps (305) are formed in the mounting frame (301), two symmetrically distributed sealing doors (306) are connected in the avoiding gaps (305) through a second hinge (307), and the first movable plate (304) is slidingly connected to the upper portion of the box body (1) and abuts against the upper surface of the mounting frame (301).

6. The abattoir air purification apparatus defined in claim 5, characterised in that: The lower portion of the avoiding gap (305) is provided with an opening and closing mechanism (9) connected with the sealing door (306), the opening and closing mechanism (9) comprises a fixed plate (901) fixed to the lower portion of the avoiding gap (305) and a second pressing rod (909) slidingly connected to the mounting frame (301), the outer portion of the fixed plate (901) is fixedly connected with an extension rod (902), the extension rod (902) is rotatably connected with a rotating rod (903), the outer end of the rotating rod (903) is fixedly connected with a counterweight (904), a rectangular transmission groove (906) is formed in the lower portion of the rotating rod (903), a push rod (908) is slidingly inserted into the transmission groove (906), the two ends of the push rod (908) are rotatably connected with transmission rods (907), the ends of the two transmission rods (907) away from the push rod (908) are respectively hinged to the two sealing doors (306), and the lower portion of the second pressing rod (909) is fixedly connected with a reset rod (9010) abutting against the upper surface of the rotating rod (903).

7. The abattoir air purification apparatus defined in claim 1, characterised in that: The switching mechanism (12) comprises a rotating disc (1201) rotatably connected to the walking trolley (10) and a servo motor (1204) fixed to the walking trolley (10), the washing pipe (401) and the first flushing pipe (403) are fixed to the rotating disc (1201), and the outer portion of the rotating disc (1201) is fixedly connected with a gear ring (1202), and the output end of the servo motor (1204) is drivingly connected with a driving gear (1203) meshing with the gear ring (1202).

8. The abattoir air cleaning device according to claim 7, characterised in that: The liquid supply mechanism (13) comprises a liquid supply hose (1301) and two distribution pipes (1302), one of which is connected with the washing pipe (401) through a hose (1306), and the other is connected with the first flushing pipe (403) through a hose (1306). One end of the liquid supply hose (1301) is fixedly connected with a tee joint (1304), one of the two distribution pipes (1302) is connected with one of the liquid outlets of the tee joint (1304) through a communication pipe (1303), and the other is connected with the other liquid outlet of the tee joint (1304) through a communication pipe (1303). The two communication pipes (1303) are provided with first electromagnetic valves (1305). The walking trolley (10) is fixedly connected with the second flushing pipe (405) on the side close to the secondary filter assembly (3), and the distribution pipe (1302) connected with the first flushing pipe (403) is connected with the second flushing pipe (405) through a liquid delivery pipe (1307).

9. The abattoir air purification apparatus defined in claim 7, characterised in that: The box (1) is fixedly connected with a protective box (20), the walking trolley (10) is arranged in the protective box (20), the side of the protective box (20) close to the secondary filter assembly (3) is open, the upper part of the box (1) is slidably connected with a second movable plate (2001) abutting against the opening of the protective box (20), the second movable plate (2001) is connected with the lifting mechanism (21), the lower part of the opening of the protective box (20) is provided with an avoiding groove (2002) matched with the rotating disc (1201), and the side of the walking trolley (10) is fixedly connected with a third sealing plate (1005) matched with the avoiding groove (2002).

10. The abattoir air purification apparatus defined in claim 1, characterised in that: The lifting mechanism (21) comprises a lifting frame (2101) and an oil cylinder (2102), the lifting frame (2101) is slidably connected to the upper part of the box (1), the oil cylinder (2102) is a plurality of and is fixedly connected to the box (1), and the extension ends of the plurality of oil cylinders (2102) are fixedly connected with the lifting frame (2101).

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