Pollution discharge device of scalding pool for slaughtering pigs

Abstract

The invention discloses a sewage discharging device of a scalding pool for pig slaughtering, and relates to the technical field of sewage treatment.The sewage discharging device comprises a scalding pool main body, and the outer portion of the scalding pool main body is sequentially communicated with a settling box, a filtering box and a purifying box; a longitudinal partition plate is mounted in the filter box, a plurality of penetrating grooves which are uniformly distributed are formed in the longitudinal partition plate, and blocking nets for blocking impurities are mounted in the penetrating grooves; a facing moving box and a back moving box are attached to the two sides of the longitudinal partition plate respectively, and the facing moving box is close to the settling box. Swing scrapers used for pushing and scraping the bottom of the filter box are arranged on the two sides of the longitudinal partition plate and are in linkage with the front moving box or the back moving box. According to the blowdown device of the scalding pool for pig slaughtering, by arranging the facing moving box, the back moving box, the swing scraper and other structures, covering type continuous treatment of impurities is achieved, operation such as shutdown and disassembly and assembly is not needed, the working intensity of operators is reduced, the swing scraper is linked with the facing moving box and the back moving box, pushing scraping and stirring are conducted, efficient filtering is achieved, and the use efficiency of the blowdown device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the sewage treatment technical field, especially to a pig slaughtering scalding tank sewage discharge device. BACKGROUND

[0002] At present, the fixed-point slaughtering is basically realized in the country, and the private slaughtering and indiscriminate slaughtering behaviors are eliminated, and the ear-marked live pigs cannot be transported. However, due to different situations in different regions, the mechanical slaughtering method cannot be quickly promoted. In most areas, hot water needs to be used to scald the pigs during the slaughtering and processing process. The existing hot water scalding pool is mostly a canal type. The pig carcass is pulled under the controllable lifting guide rail, and the pig is kept in the suspended state in the scalding pool by using the conveying mechanism to travel. After the immersion and scalding is completed, the pig is lifted to the pig falling device in front of the hair removal machine. The whole immersion and scalding process does not need manual operation, and basically realizes the mechanical processing of the production line.

[0003] In the patent with the name of a pig slaughtering scalding tank sewage discharge device (patent application number: CN202022996318.3), a pig slaughtering scalding tank sewage discharge device is disclosed. The structure is simple, convenient to operate, can filter the sludge and pig hair in the water, treat the odor and bacteria in the water, is conducive to reuse, avoids direct discharge to pollute the environment, saves resources, filters the pig hair through the screen, and the screen can be removed for easy cleaning, and the screen is easy to block due to too much pig hair.

[0004] Therefore, it is necessary to provide a pig slaughtering scalding tank sewage discharge device to solve the above problems. SUMMARY

[0005] The present application aims to provide a pig slaughtering scalding tank sewage discharge device to solve the problem that the device needs to be manually removed during actual use, which is complicated to operate, especially when there is a lot of impurities such as pig hair, which increases the working intensity of the operator and needs to improve the use efficiency.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a pig slaughtering scalding tank sewage discharge device, comprising a scalding tank body, the outside of the scalding tank body is sequentially communicated with a settling tank, a filter box and a purification tank; The inside of the filter box is provided with a longitudinal partition plate, the longitudinal partition plate is provided with a plurality of evenly distributed through slots, and the through slots are provided with a blocking net for blocking impurities; The two sides of the longitudinal partition plate are respectively attached with a front moving box and a back moving box, and the front moving box is close to the settling tank; The two sides of the longitudinal partition plate are provided with a swing scraper for pushing and scraping the bottom of the filter box, and the swing scraper is connected with the front moving box or the back moving box. During wastewater treatment, the front and back moving boxes move back and forth synchronously, covering multiple through slots in sequence. The back moving box backwashes the filter screen, while the front moving box draws in the filter. At the same time, the swing scraper moves back and forth along the length of the filter box, pushing and scraping the filter box and dispersing impurities.

[0007] Preferably, the thickness of the barrier net is less than the width of the channel, and a collection area for impurities is formed in the channel on the side of the barrier net near the settling box.

[0008] Preferably, both sides of the longitudinal plate are provided with moving rods, the inner wall of the filter box has a side groove for the moving rods to slide, the oscillating scraper is rotatably mounted on the corresponding moving rod, and a tie rod is provided between the moving rod and the front or back moving box.

[0009] Preferably, the moving rod is fitted with a torsion spring that cooperates with the oscillating scraper.

[0010] Preferably, the swivel scraper is provided with an agitation component for stirring the water, the agitation component including a longitudinal plate and an agitator.

[0011] Preferably, the top of the front-moving box is connected to a front-moving pipe for connecting to the slaughterhouse suction pipe, and the top of the back-moving box is connected to a back-moving pipe for connecting to the slaughterhouse water conveyance pipe, and both the front-moving pipe and the back-moving box slide on the top of the filter box.

[0012] Preferably, the filter box is provided with a control component that drives the front and back pipes to move up and down synchronously. The control component includes a main frame and a first electric push rod.

[0013] Preferably, the upper surface of the bottom of the filter box is inclined, and the end away from the settling box is inclined downward.

[0014] Preferably, the length and width of the inner cavities of the welcoming box and the backing box are the same as the length and width of the through slot.

[0015] Preferably, a transverse plate is slidably arranged inside the settling box, and a second electric push rod is installed at the bottom of the settling box, with the transverse plate fixed to the telescopic end of the second electric push rod.

[0016] The technical effects and advantages of this invention are as follows: 1. This invention achieves continuous, comprehensive treatment of impurities by setting up structures such as a front-moving box, a back-moving box, and a swivel scraper, eliminating the need for machine shutdowns and disassembly, thus reducing the workload of operators. Furthermore, the swivel scraper is linked with the front-moving box and the back-moving box to push, scrape, and stir, achieving efficient filtration and improving the efficiency of the sewage discharge device. 2. The up-and-down reciprocating movement of the front and back moving boxes can agitate the sewage, disperse the pig hair, prevent it from sticking together and forming "felt", reduce the pressure of subsequent impurity treatment, and at the same time, the agitation can also reduce the impact of sewage on the screen and other structures, extending their service life. 3. The front and back moving boxes cooperate with multiple through slots in sequence, so that multiple nets can participate in the interception process, avoiding excessive wear of a certain net, ensuring uniform lifespan, and facilitating overall uniform replacement; 4. Utilize the front and back action boxes to create a covered space, separating it from the outside, to ensure that the recoil and suction forces are concentrated and to avoid the dispersion of force; 5. A water flow is formed within the covered space from the back of the moving box to the front of the moving box. This water flow does not interfere with the external sewage flow and filtration, ensuring that sewage treatment and impurity treatment can proceed normally. 6. By setting up structures such as a scraper, the oil sludge deposited at the bottom of the filter box is pushed and scraped to assist the operator in cleaning. At the same time, the sewage can be stirred to ensure the practicality of the sewage discharge device. 7. A torsion spring is installed so that the oscillating scraper can swing adaptably, and its bottom end is attached to the upper surface of the bottom of the settling tank, which is suitable for the inclined surface of the bottom of the filter tank and always maintains the pushing and scraping effect. 8. By setting up a pull bar, the residual power of the moving box and the moving box is used to realize the reciprocating movement of the swivel scraper when the moving box and the moving box are engaged with multiple through slots in sequence, thereby reducing energy consumption and ensuring ease of operation. 9. When the scraper moves back and forth, it drives the longitudinal plate and the stirring rod to move back and forth synchronously, stirring the sewage and expanding the stirring range. It also utilizes the residual power of the moving box and the moving box to further reduce energy consumption. 10. By setting up structures such as cross plates and second electric push rods, the instantaneous breakage rate can be reduced, residual sewage can be treated, and scraping and cleaning can be achieved. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the sewage discharge device of the scalding tank for pig slaughtering according to the present invention.

[0018] Figure 2 This is a schematic diagram of the sewage discharge device of the scalding tank for pig slaughtering according to the present invention from another perspective.

[0019] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0020] Figure 4 This is a schematic diagram of the sedimentation tank and filter box structure of the present invention.

[0021] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point B.

[0022] Figure 6 This is a schematic diagram of the cross plate and the second electric push rod structure of the present invention.

[0023] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at point C.

[0024] Figure 8 For the present invention Figure 6 Enlarged schematic diagram of the structure at point D.

[0025] Figure 9 This is a schematic diagram of the longitudinal plate and the back-moving box structure of the present invention.

[0026] Figure 10 For the present invention Figure 9 Enlarged schematic diagram of the structure at point E in the middle.

[0027] Figure 11 This is a schematic diagram of the longitudinal plate and through-slot structure of the present invention.

[0028] Figure 12 For the present invention Figure 11 Enlarged schematic diagram of the structure at point F.

[0029] Figure 13 This is a schematic diagram of the slotted and barrier structure of the present invention.

[0030] In the diagram: 1. Main body of the scalding tank; 2. Settling tank; 3. Filter box; 4. Purification box; 5. Longitudinal plate; 6. Through channel; 7. Barrier net; 8. Collection area; 9. Front drive box; 10. Back drive box; 11. Front drive pipe; 12. Back drive pipe; 13. Main frame; 14. First electric push rod; 15. Side channel; 16. Moving rod; 1601. Circular section; 1602. Rectangular section; 17. Swing scraper; 18. Torsion spring; 19. Tie bar; 20. Longitudinal plate; 21. Stirring rod; 22. Transverse plate; 23. Second electric push rod; 24. Valve; 25. Flow channel; 26. Base; 27. Sewage outlet pipe. Detailed Implementation

[0031] This invention provides, for example Figures 1-13 The sewage discharge device of a scalding tank for pig slaughtering shown includes a scalding tank body 1 and a base 26. The base 26 is a brick-concrete structure, located on the floor of the slaughterhouse workshop, and is equipped with steps for easy access by operators.

[0032] The scalding tank body 1 is equipped with a water inlet pipe (not shown in the figure) that connects to the hot water supply pipeline of the slaughterhouse, and hot water is injected into the scalding tank body 1 through the water inlet pipe. Specifically, hot water is injected into the scalding tank body 1, and then the pig is placed into the scalding tank body 1 for scalding treatment, which facilitates subsequent operations such as hair removal. The scalding treatment and its working principle are common existing technologies and will not be described in detail here.

[0033] Reference Figure 1 , Figure 2 , Figure 4 As shown, considering that the wastewater discharged from the scalding pool after the scalding process will inevitably contain various impurities such as pig hair and mud, in order to achieve efficient and stable wastewater treatment, a settling tank 2, a filter box 3 and a purification box 4 are installed on the outside of the main body 1 of the scalding pool.

[0034] Among them, reference Figure 2 , Figure 3 , Figure 4 As shown, the outside of the scalding pool body 1 is connected to a sewage outlet pipe 27. The end of the sewage outlet pipe 27 away from the scalding pool body 1 is connected to the top of the settling tank 2. A valve 24 is installed on the sewage outlet pipe 27. When scalding, the sewage outlet pipe 27 is closed by the valve 24. When discharging sewage, the valve 24 is opened and the sewage enters the interior of the settling tank 2 through the sewage outlet pipe 27. Gravity sedimentation of sand and sludge occurs inside the settling tank 2.

[0035] Reference Figure 6 As shown, a flow channel 25 is provided at the end of the settling tank 2 facing away from the sewage outlet pipe 27, and the flow channel 25 is located in the upper half of the side wall of the settling tank 2. Its top end is lower than the bottom end of the connection between the sewage outlet pipe 27 and the settling tank 2. The filter box 3 is fixedly installed on the outer wall of the settling tank 2. The settling tank 2 is connected to the filter box 3 through the flow channel 25. The position where the flow channel 25 connects to the filter box 3 is located at the top of the side wall of the filter box 3. The sewage treated by gravity sand and sludge settling enters the interior of the filter box 3 through the flow channel 25, and impurities such as pig hair and suspended solids are intercepted inside the filter box 3.

[0036] Reference Figure 6 As shown, the upper surface of the bottom of the filter box 3 is inclined, and the end away from the settling box 2 is inclined downward, so that the sewage can flow away from the settling box 2.

[0037] Reference Figure 1 , Figure 2 , Figure 6 As shown, the bottom of the purification box 4 is connected to the bottom of the filter box 3 at the end away from the settling box 2, and the purification box 4 is connected to the slaughterhouse water recycling pipe. Sterilization and deodorization are carried out inside the purification box 4.

[0038] The purification chamber 4 is equipped with activated carbon filter cartridges, ultraviolet lamps and other structures (not shown in the figure) to achieve sterilization and deodorization. The purification process is a common existing technology and will not be described in detail here.

[0039] The purification box 4 is fixedly installed on the ground and can also support the filter box 3 and other structures.

[0040] The system is equipped with a settling tank 2, a filter box 3, and a purification box 4, forming a continuous process of "sedimentation, filtration, and purification". The entire process can achieve on-site treatment and reuse of wastewater without interrupting production.

[0041] Considering that in existing technologies, filter screens and other structures are usually installed inside the filter box 3 to trap impurities such as pig hair and suspended solids, after a certain period of use, impurities adhere to the filter screen, easily causing it to become clogged. This requires manual disassembly and cleaning of the filter screen, especially when there are many impurities, increasing the workload of operators. Furthermore, the wastewater has a certain temperature, posing a risk of burns. To ensure efficient wastewater treatment and improve the efficiency of the sewage discharge device, a longitudinal plate 5 is installed inside the filter box 3. The longitudinal plate 5 is attached to the four inner walls of the filter box 3. The longitudinal plate 5 has multiple grooves 6 evenly distributed along its height, penetrating the longitudinal plate 5. A screen 7 is installed inside the grooves 6. The screen 7 is made of stainless steel, is heat-resistant, and has several filter holes to intercept impurities.

[0042] Reference Figure 6 , Figure 7 As shown, the thickness of the barrier net 7 is less than the width of the channel 6, and the barrier net 7 is installed inside the channel 6 at one end away from the settling box 2, so that a collection area 8 for impurity concentration can be formed on the side of the channel 6 where the barrier net 7 is close to the settling box 2, and the impurities intercepted by the barrier net 7 accumulate inside the collection area 8.

[0043] Specifically, the wastewater that has undergone gravity sedimentation and sludge treatment enters the interior of the filter box 3 through the flow channel 25 and flows from the settling box 2 toward the purification box 4. The screen 7 intercepts impurities, and the intercepted impurities accumulate inside the collection area 8 for subsequent treatment.

[0044] Reference Figure 5 , Figure 6 , Figure 13 As shown, in order to process the impurities accumulated inside the collection area 8, a welcoming box 9 and a back moving box 10 are respectively attached to both sides of the longitudinal plate 5. The welcoming box 9 is close to the settling box 2. The welcoming box 9 and the back moving box 10 have the same size, and their inner cavities are relatively distributed and move up and down synchronously.

[0045] The length and width of the inner cavities of the forward-moving box 9 and the reverse-moving box 10 are the same as the length and width of the through slot 6, as shown in the reference. Figure 7 As shown, when the welcoming box 9 and the back moving box 10 move synchronously to correspond to one of the through slots 6, the welcoming box 9 and the back moving box 10 are both attached to the longitudinal plate 5. The welcoming box 9, the back moving box 10, and the through slot 6 form a covering space. First, the welcoming box 9 sucks away the original sewage and some impurities inside the covering space, and then water is pumped into the back moving box 10 to backwash the through slot 6, so that the stubborn impurities on the screen 7 are loosened, and the welcoming box 9 is used to suck away the impurities in time.

[0046] Furthermore, the water supplied to the back-moving box 10 can be supplemented with cleaning solution to assist in cleaning.

[0047] The front and back boxes 9 and 10 are used to form a covered space that is isolated from the outside, ensuring that the recoil and suction forces are concentrated and avoiding the dispersion of forces.

[0048] The net 7 at a certain location is within the covered space and is in the state of impurity treatment, while the nets 7 at other locations can normally intercept impurities. A water flow is formed in the covered space from the back moving box 10 to the front moving box 9. This water flow does not interfere with the external sewage flow and filtration, ensuring that sewage treatment and impurity treatment are carried out normally.

[0049] The welcoming box 9 and the back-moving box 10 move up and down and cooperate with multiple through slots 6 in sequence to achieve continuous processing of impurities without the need for machine shutdown, disassembly and assembly, etc., reducing the workload of operators.

[0050] The moving box 9 and the moving box 10 move up and down repeatedly, which can agitate the sewage, disperse the pig hair, prevent them from sticking together and forming "felt", reduce the pressure of subsequent impurity treatment, and at the same time, the agitation can also reduce the impact of sewage on the screen 7 and other structures, and extend their service life.

[0051] The incoming drive box 9, the outgoing drive box 10, and multiple through slots 6 work together in sequence to enable multiple nets 7 to participate in the interception process, avoid excessive wear of a certain net 7, ensure uniform lifespan, and facilitate overall unified replacement.

[0052] Furthermore, the accumulation of impurities inside the collection area 8 does not affect the movement of the front-moving box 9 and the back-moving box 10.

[0053] In actual use, the settling box 2, filter box 3 and purification box 4 can be made of transparent material, such as polycarbonate board, so that the operator can observe and control the incoming box 9, the outgoing box 10, etc., and can also control the timed movement of the incoming box 9, the outgoing box 10, etc., and adjust according to the specific use.

[0054] For example: when the control box 9 and the control box 10 correspond to the lower position of the barrier 7, the sewage will pass through the upper position of the barrier 7, and the upper position of the barrier 7 is in working state; when the control box 9 and the control box 10 correspond to the upper position of the barrier 7, the sewage will pass through the lower position of the barrier 7, and the lower position of the barrier 7 is in working state.

[0055] In actual use, rubber pads are provided on the side of the front-moving box 9 and the back-moving box 10 that are close to the longitudinal plate 5 to reduce wear and ensure sealing.

[0056] Meanwhile, the filter box 3 can be equipped with guide rods (not shown in the figure) that cooperate with the incoming moving box 9 and the outgoing moving box 10 to ensure that the incoming moving box 9 and the outgoing moving box 10 move stably up and down, and that the incoming moving box 9 and the outgoing moving box 10 are always attached to the longitudinal plate 5.

[0057] Reference Figure 5 , Figure 10 , Figure 13 As shown, in order to realize the up and down movement of the welcoming box 9 and the back moving box 10, the top of the welcoming box 9 is connected to the welcoming pipe 11, and the top of the filter box 3 is provided with a through groove for the welcoming pipe 11 to slide. The top of the welcoming pipe 11 is connected to the suction pipe of the slaughterhouse by a hose or the like. The welcoming pipe 11 and the welcoming box 9 suck up the sewage, impurities and the like inside the collection area 8, and the sucked impurities enter the centralized processing area of ​​the slaughterhouse for unified processing.

[0058] Suction processing is a common existing technology, which will not be elaborated here. For example, the suction pipeline is connected to a pneumatic diaphragm pump, etc., and adjustments are made according to the specific application.

[0059] The top of the back-moving box 10 is connected to the back-moving pipe 12, and the top of the filter box 3 is provided with a through groove for the back-moving pipe 12 to slide. The top of the back-moving pipe 12 is connected to the slaughterhouse water conveying pipeline by a hose or the like. Water conveying is a common existing technology, which will not be described in detail here, and there are no impurities in the water.

[0060] Suction treatment is a common existing technology and will not be elaborated here. For example, water conveyance pipelines are connected to water pumps, etc., and adjustments are made according to the specific application.

[0061] The filter box 3 is equipped with a control component that drives the incoming pipe 11 and the outgoing pipe 12 to move up and down synchronously. The control component includes a main frame 13 and a first electric push rod 14. The incoming pipe 11 and the outgoing pipe 12 are both fixed on the main frame 13. The fixed end of the first electric push rod 14 is fixedly installed on the outer wall of the filter box 3. The main frame 13 is fixedly installed on the telescopic end of the first electric push rod 14. The first electric push rod 14 and the main frame 13 drive the incoming pipe 11 and the outgoing pipe 12 to move up and down, thereby driving the incoming box 9 and the outgoing box 10 to move up and down synchronously.

[0062] Specifically, the telescopic end of the first electric push rod 14 is extended, causing the main frame 13 to move upward, and the welcoming tube 11 and the back moving tube 12 to move upward synchronously, thereby causing the welcoming box 9 and the back moving box 10 to move upward synchronously; the telescopic end of the first electric push rod 14 is retracted, causing the main frame 13 to move downward, and the welcoming tube 11 and the back moving tube 12 to move downward synchronously, thereby causing the welcoming box 9 and the back moving box 10 to move downward synchronously, that is, the covering space formed by the welcoming box 9, the back moving box 10, and the through slot 6 moves.

[0063] Considering that after sewage discharge, a composite sludge of "mud, sand, protein and oil flocs, and fine pig hair" is easily deposited at the bottom of the filter box 3, which is both heavy and sticky, in order to assist operators in processing the sludge, moving rods 16 are provided on both sides of the longitudinal plate 5. The moving rods 16 include a circular section 1601 and two rectangular sections 1602. The circular section 1601 is located between the two rectangular sections 1602. A side groove 15 is provided on the inner wall of the filter box 3 for the rectangular sections 1602 to slide.

[0064] In actual use, ball bearings or other components can be installed on the rectangular segment 1601 to improve the smoothness of sliding.

[0065] A swivel scraper 17 is rotatably mounted on the circular segment 1602. The swivel scraper 17 can scrape the bottom upper surface of the filter box 3. A circular groove is opened at one end of the swivel scraper 17. The circular groove surrounds the outside of the moving rod 16. A torsion spring 18 is mounted on the moving rod 16. One end of the torsion spring 18 is fixedly connected to the moving rod 16, and the other end of the torsion spring 18 is fixedly connected to the swivel scraper 17.

[0066] Because the upper surface of the bottom of the filter box 3 is inclined and the end away from the settling box 2 is inclined downward, a torsion spring 18 is provided so that the swing scraper 17 can swing adaptively, and its bottom end is attached to the upper surface of the bottom of the settling box 2, which is suitable for the inclined surface of the bottom of the filter box 3, and always maintains the pushing and scraping effect.

[0067] When the scraper 17 adheres to the upper surface of the bottom of the settling tank 2 and moves back and forth along the length of the filter box 3, it can push and scrape the sludge deposited at the bottom of the filter box 3, assisting the operator in cleaning and reducing the operator's workload.

[0068] During the sewage discharge process, the scraper 17 can agitate the sewage to prevent pig hair from getting tangled together and forming "felt".

[0069] By setting up structures such as the scraper 17, the oil sludge deposited at the bottom of the filter box 3 is pushed and scraped to assist the operator in cleaning. At the same time, the sewage can be stirred to ensure the practicality of the sewage discharge device.

[0070] In actual use, the filter box 3 is equipped with a treatment tank, cover plate and other structures. During the sewage discharge process, the treatment tank is closed by the cover plate. After the sewage discharge, the operator removes the cover plate and the treatment tank cleans the oil sludge.

[0071] This invention achieves continuous, comprehensive treatment of impurities by setting up structures such as the welcoming box 9, the back moving box 10, and the swing scraper 17, eliminating the need for shutdowns and disassembly, thus reducing the workload of operators. Furthermore, the swing scraper 17 is linked with the welcoming box 9 and the back moving box 10 to push, scrape, and stir, achieving efficient filtration and improving the efficiency of the sewage discharge device.

[0072] To enable the reciprocating movement of the swing scraper 17, a pull bar 19 is rotatably mounted on the moving rod 16. The pull bar 19 located on the side of the longitudinal plate 5 near the settling box 2 has its end away from the corresponding moving rod 16 rotatably mounted on the side wall of the facing box 9. The pull bar 19 located on the side of the longitudinal plate 5 away from the settling box 2 has its end away from the corresponding moving rod 16 rotatably mounted on the side wall of the back moving box 10.

[0073] Reference Figure 6 , Figure 7 As shown, in actual use (taking the welcoming box 9 as an example), when the welcoming box 9 moves downward, the end of the pull bar 19 on the right side away from the corresponding moving rod 16 moves downward, causing the moving rod 16 to move to the right in the right side groove 15, and the swing scraper 17 moves to the right; while when the welcoming box 9 moves upward, the end of the pull bar 19 on the right side away from the corresponding moving rod 16 moves upward, causing the moving rod 16 to move to the left in the right side groove 15, and the swing scraper 17 moves to the left, thereby realizing the reciprocating movement of the swing scraper 17.

[0074] By setting up the pull bar 19, the remaining power of the moving box 9 and the moving box 10 is used to realize the reciprocating movement of the swivel scraper 17 when the moving box 9 and the moving box 10 are engaged with multiple through slots 6 in sequence, thereby reducing energy consumption and ensuring convenient operation.

[0075] Compared to existing technologies that use electric push rods and other structures, which require overcoming difficulties such as sewage, high temperature, and wiring, this invention achieves linkage by setting a pull bar 19, making it more practical.

[0076] The bottom of the swivel scraper 17 is equipped with a replaceable scraper (not shown in the figure), which can be made of, but is not limited to, ultra-high molecular weight polyethylene material. It is wear-resistant and corrosion-resistant, and operators can perform regular maintenance and replacement.

[0077] In addition, scrapers for pushing and scraping the inner wall of the filter box 3 can be installed at both ends of the moving rod 16, and can be adjusted according to the specific use.

[0078] Reference Figure 8 , Figure 10 , Figure 13 As shown, in order to expand the agitation range, an agitation component for agitating the water is provided at the oscillating scraper 17. The agitation component includes a longitudinal plate 20 and an agitating rod 21. The longitudinal plate 20 is located on the side of the end position of the oscillating scraper 17 and is fixed on the rectangular section 1602. The agitating rod 21 is fixed on the longitudinal plate 20, and multiple agitating rods 21 can be provided.

[0079] When the swivel scraper 17 moves back and forth, it drives the longitudinal plate 20 and the stirring rod 21 to move back and forth synchronously, stirring the sewage and expanding the stirring range. It also utilizes the residual power of the moving box 9 and the moving box 10 to further reduce energy consumption.

[0080] By utilizing the movement of the stirring components, the front-moving box 9, the back-moving box 10, and the swivel scraper 17, the system performs double stirring in all directions. Stirring before filtration ensures uniform wastewater concentration and guarantees uniform filtration. Stirring after filtration also ensures uniform wastewater concentration, facilitating subsequent purification treatment.

[0081] Reference Figure 6 As shown, considering that after the sewage discharge is completed, there is still some sewage in the settling tank 2 in addition to mud and sludge, in order to discharge the sewage quickly, a transverse plate 22 is slidably installed inside the settling tank 2. A second electric push rod 23 is installed at the bottom of the settling tank 2. A through groove is opened at the bottom of the settling tank 2 for the extension end of the second electric push rod 23 to pass through. The inner diameter of the through groove is larger than the outer diameter of the extension end of the second electric push rod 23, so that external air can enter the settling tank 2 from the through groove at the position below the transverse plate 22. The transverse plate 22 is fixed on the extension end of the second electric push rod 23.

[0082] A sealing ring is provided on the outer circumference of the cross plate 22 to ensure sealing and reduce wear during vertical movement.

[0083] The first electric push rod 14, the second electric push rod 23, and other structures are all connected to the power supply of the slaughterhouse.

[0084] In actual use, the top of the settling tank 2 is equipped with a treatment tank, a cover plate and other structures. During the sewage discharge process, the treatment tank is closed with the cover plate. After the sewage discharge, the operator can remove the cover plate and the treatment tank can be used to clean the mud and sludge.

[0085] Before the sewage discharge begins, the extension end of the second electric push rod 23 is extended, causing the cross plate 22 to move upward inside the settling tank 2. This makes the distance between the upper surface of the cross plate 22 and the bottom of the flow channel 25 smaller. When the sludge blocks enter the settling tank 2 with the sewage through the sewage outlet pipe 27, the drop is smaller, reducing the instantaneous breakage rate. The fewer the broken sludge particles, the lower the probability of blockage and the load on the subsequent screen 7.

[0086] As the amount of sewage gradually increases, the extension end of the second electric push rod 23 is slowly retracted, causing the cross plate 22 to move slowly downwards. It has a large settling and accommodating space, allowing gravity sedimentation of sand and sludge to occur inside the settling box 2.

[0087] After the sewage discharge is completed, there is some sewage in the settling tank 2. At this time, the extension end of the second electric push rod 23 can be controlled to slowly extend, driving the cross plate 22 to move upward inside the settling tank 2. At this time, the sewage enters the filter box 3 through the flow channel 25 for filtration. When the solid layer (mud, sludge, etc.) approaches the bottom of the flow channel 25, the extension end of the second electric push rod 23 stops extending, thus achieving the function of assisting in the treatment of the remaining sewage.

[0088] Next, the operator can clean the mud and sludge inside the settling tank 2. Since the cross plate 22 has moved upward inside the settling tank 2 beforehand and pushed and scraped the lower half of the inner wall of the settling tank 2, the depth to be cleaned is greatly reduced, making it easier for the operator to clean.

[0089] By setting up structures such as the transverse plate 22 and the second electric push rod 23, the instantaneous breakage rate is reduced, the remaining sewage is treated, and the cleaning is achieved through pushing and scraping.

Claims

1. A sewage discharge device for a scalding tank used in pig slaughtering, comprising a scalding tank body (1), characterized in that: The main body (1) of the hot water tank is connected in sequence to a settling tank (2), a filter tank (3) and a purification tank (4). The filter box (3) is equipped with a longitudinal plate (5), which has multiple evenly distributed slots (6) and a screen (7) for intercepting impurities is installed in the slots (6). The longitudinal plate (5) has an incoming box (9) and a back-moving box (10) attached to its two sides respectively, and the incoming box (9) is close to the settling box (2). Both sides of the longitudinal plate (5) have a swing scraper (17) for scraping the bottom of the filter box (3), and the swing scraper (17) is linked with the front moving box (9) or the back moving box (10). During wastewater treatment, the welcoming box (9) and the back box (10) move back and forth synchronously, covering multiple through slots (6) in sequence. The back box (10) backwashes the screen (7), and the welcoming box (9) sucks it up. At the same time, the swing scraper (17) moves back and forth along the length of the filter box (3), pushing and scraping the filter box (3) and dispersing impurities.

2. The sewage discharge device for a scalding tank used in pig slaughtering according to claim 1, characterized in that: The thickness of the barrier net (7) is less than the width of the channel (6), and the channel (6) forms a collection area (8) for impurity concentration on the side of the barrier net (7) near the settling box (2).

3. The sewage discharge device for a scalding tank used in pig slaughtering according to claim 1, characterized in that: Both sides of the longitudinal plate (5) are provided with moving rods (16), the inner wall of the filter box (3) has a side groove (15) for the moving rods (16) to slide, the swing scraper (17) is rotatably mounted on the corresponding moving rod (16), and a pull strip (19) is provided between the moving rod (16) and the welcoming box (9) or the back box (10).

4. The sewage discharge device for a scalding tank used in pig slaughtering according to claim 3, characterized in that: The moving rod (16) is fitted with a torsion spring (18) that cooperates with the oscillating scraper (17).

5. The sewage discharge device for a scalding tank used in pig slaughtering according to claim 1, characterized in that: The oscillating scraper (17) is provided with an agitation component for stirring the water, the agitation component including a longitudinal plate (20) and an agitator (21).

6. The sewage discharge device for a scalding tank used in pig slaughtering according to claim 1, characterized in that: The top of the front-moving box (9) is connected to a front-moving pipe (11) for connecting to the slaughterhouse suction pipe, and the top of the back-moving box (10) is connected to a back-moving pipe (12) for connecting to the slaughterhouse water transport pipe. Both the front-moving pipe (11) and the back-moving box (10) slide on the top of the filter box (3).

7. The sewage discharge device for a scalding tank used in pig slaughtering according to claim 6, characterized in that: The filter box (3) is provided with a control component on its exterior that drives the front moving pipe (11) and the back moving pipe (12) to move up and down synchronously. The control component includes a main frame (13) and a first electric push rod (14).

8. The sewage discharge device for a scalding tank used in pig slaughtering according to claim 1, characterized in that: The bottom upper surface of the filter box (3) is inclined, and the end away from the settling box (2) is inclined downward.

9. The sewage discharge device for a scalding tank used in pig slaughtering according to claim 1, characterized in that: The length and width of the inner cavity of the front moving box (9) and the back moving box (10) are the same as the length and width of the through groove (6).

10. The sewage discharge device for a scalding tank used in pig slaughtering according to claim 1, characterized in that: The settling box (2) has a sliding cross plate (22) inside, and a second electric push rod (23) is installed at the bottom of the settling box (2). The cross plate (22) is fixed on the telescopic end of the second electric push rod (23).

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