Environment-friendly harmless sewage treatment device for meat duck processing

Abstract

The invention discloses an environment-friendly innocent sewage treatment device for meat duck processing, and belongs to the technical field of meat duck processing device.The environment-friendly innocent sewage treatment device comprises a sewage treatment equipment body, a pretreatment cavity is formed in the water inlet end of the sewage treatment equipment body, and the pretreatment cavity is in the shape of a quarter of a cylinder; the top of the pretreatment cavity is communicated with a feed port, the side surface of the pretreatment cavity is communicated with a discharge port, and the water outlet end of the discharge port is communicated with the interior of the sewage treatment equipment body. According to the multi-grid cleaning device, the vertical rail, the arc-shaped rail and the transverse rail form the sliding rail, so that the sliding frame can drive the grid plate to stably move between the filtering position and the cleaning position, and the core requirement for cleaning multiple grids according to needs is met; the aperture of the multiple grids is gradually reduced in the direction from the feeding port to the discharging port, the filtering load of the grid plates close to the feeding port is higher due to the fact that the grid plates intercept large-size impurities, high-frequency targeted cleaning can be achieved through independent transferring, and the load difference of graded filtering is adapted.

Description

Technical Field

[0001] This invention belongs to the technical field of meat duck processing equipment, and particularly relates to an environmentally friendly and harmless wastewater treatment device for meat duck processing. Background Technology

[0002] In the wastewater treatment process of the duck meat processing industry, the pretreatment stage, as the first barrier before the wastewater enters the advanced treatment system, plays a crucial role in intercepting large solid impurities such as duck feathers, bone fragments, and visceral residues, as well as sticky impurities such as grease flocs and fine meat scraps. Its operational stability directly determines the load of subsequent wastewater treatment equipment and the final effluent compliance rate. However, current mainstream pretreatment equipment generally faces core pain points in practical applications: the impurities in duck meat processing wastewater are not only large in size and highly viscous, but also easily entangle and clump together, causing rapid clogging of filter components. At the same time, impurities tend to adhere to the inner wall of the pretreatment chamber, forming residual accumulations, which significantly increases the frequency of manual cleaning and seriously affects the continuity and efficiency of wastewater treatment.

[0003] To address the problem of filter clogging, existing technologies propose a solution of "fixed metal mesh frame, single filter screen, hammer impact, and reverse water pump flushing." This solution uses a water pressure sensor to monitor the clogging status and trigger online cleaning. However, this solution can only achieve overall cleaning of a single filter screen, cannot classify and intercept impurities of different sizes, and has no special ability to treat residual impurities on the inner wall of the chamber. The cleaning effect is limited and it is difficult to adapt to the characteristics of duck meat processing wastewater and the need for efficient pretreatment. Summary of the Invention

[0004] The purpose of this invention is to propose an environmentally friendly and harmless wastewater treatment device for duck processing, in order to solve the problems of traditional technologies that can only achieve overall cleaning of a single filter screen, cannot classify and intercept impurities of different sizes, and have no special treatment capability for residual impurities on the inner wall of the cavity, resulting in limited cleaning effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An environmentally friendly and harmless wastewater treatment device for duck processing includes a wastewater treatment equipment body. The inlet end of the wastewater treatment equipment body is provided with a pretreatment chamber, which is in the shape of a quarter cylinder. The top of the pretreatment chamber is connected to a feed inlet, and the side is connected to a discharge outlet. The outlet end of the discharge outlet is connected to the interior of the wastewater treatment equipment body. The inner walls of the feed inlet, pretreatment chamber and discharge outlet are fixedly connected to sliding rails. Multiple sliding frames are slidably connected on the sliding rails. The outer side of the sliding frame is sealed and slidably engaged with the inner wall of the pretreatment chamber and discharge outlet. The inside of the frame is sealed and snapped with a grid plate. The grid aperture of the multiple grid plates gradually decreases from the feed inlet to the discharge outlet. Both the inlet and outlet are connected to a drive mechanism, which is used to drive the sliding frame to slide linearly along both ends of the sliding track. The pretreatment cavity is connected to a rotating mechanism, which drives the sliding frame to rotate coaxially along the middle of the sliding track. A window is provided on the side of the feed inlet, and an electric window door is installed on the window.

[0006] Preferably, a vertical track is fixedly connected to the inner wall of the feed inlet, an arc-shaped track is fixedly connected to the inner wall of the pretreatment chamber, the arc-shaped track is coaxially arranged with the pretreatment chamber, and a horizontal track is fixedly connected to the inner wall of the discharge outlet. The vertical track, the arc-shaped track, and the horizontal track are smoothly connected to form a sliding track.

[0007] Preferably, the driving mechanism includes an electric telescopic rod installed on the outside of the feed inlet. The output end of the electric telescopic rod is fixedly connected to a mounting frame. Multiple sliding frames are connected to the mounting frame, and the multiple sliding frames correspond one-to-one with multiple sliding frames. An electromagnet is installed on the sliding frame, and a ferromagnetic block is embedded inside the sliding frame. The electromagnet and the ferromagnetic block are magnetically engaged. When the output end of the electric telescopic rod moves, the sliding frame is driven to slide along the axial direction of the feed inlet through the magnetic engagement between the electromagnet and the ferromagnetic block. Multiple sliding frames are slidably connected to the mounting frame, and the mounting frame is fixedly connected to the outermost sliding frame and the two adjacent sliding frames by a separating spring.

[0008] Preferably, the rotating mechanism includes a drive motor installed on the outside of the pretreatment chamber, an electric telescopic shaft fixedly connected to the output end of the drive motor, a transmission groove opened at one end of the sliding frame, the electric telescopic shaft sealingly penetrates the side wall of the pretreatment chamber, and its output end is engaged with the transmission groove after extension, and the electric telescopic shaft coincides with the center of the arc track.

[0009] Preferably, a cleaning mechanism is connected to the side of the feed inlet away from the window for cleaning the grid plate at the window. The cleaning mechanism includes a cleaning motor installed on the outside of the feed inlet. A threaded rod is coaxially fixedly connected to the output end of the cleaning motor. A sliding frame is threadedly connected to the threaded rod. One end of the sliding frame is sealed and slides through the side wall of the feed inlet and is fixedly connected to an mounting sleeve. A rotating roller is connected to the mounting sleeve. A cleaning brush is fixedly connected to the rotating roller. A collection trough is fixedly connected to the outside of the window. When the cleaning brush moves axially along the threaded rod with the sliding frame, it sweeps the upper surface of the grid plate and pushes the debris out of the window and into the inside of the collection trough.

[0010] Preferably, the cleaning mechanism further includes a flushing assembly, which includes a connecting frame fixedly connected to the mounting sleeve. A diversion pipe is fixedly connected to the connecting frame. The inlet end of the diversion pipe is connected to a high-pressure water pipe, and the outlet end is provided with multiple spray holes. The high-pressure water pipe is sealed through the feed inlet and connected to an external high-pressure water source. The water outlet direction of the multiple spray holes is towards the contact gap between the cleaning brush and the grid plate.

[0011] Preferably, the inner side of the feed inlet is connected to a receiving groove for accommodating the mounting sleeve, rotating roller, cleaning brush, connecting frame and diverting pipe. The sliding frame includes an end plate threaded through and connected to a threaded rod. A plurality of sliding rods are fixedly connected to the end of the end plate near the cleaning motor. The ends of the plurality of sliding rods away from the end plate are sealed and extend through into the receiving groove and are fixedly connected to the mounting sleeve and connecting frame.

[0012] Preferably, the multiple sliding frames are located on the transverse track inside the discharge port when in operation, and are magnetically attracted and fixed by the drive mechanism. A differential pressure sensor is installed on the discharge port, and the multiple detection ends of the differential pressure sensor are distributed on both sides of the multiple grid plates to detect the pressure difference on both sides of a single grid plate. The electric telescopic rod, electromagnet, drive motor, electric window, cleaning motor, external high-pressure water source and differential pressure sensor are all electrically connected to a controller. The controller is installed on the sewage treatment equipment body and is used to receive the signal from the differential pressure sensor and control the working state of each actuator.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. In this invention, the sliding track composed of vertical track, arc track, and horizontal track can realize the smooth movement of the sliding frame and the grid plate between the filtration position and the cleaning position, which meets the core requirement of cleaning multiple grids on demand; the aperture of the multiple grids decreases step by step from the inlet to the outlet. The grid plate near the inlet has a higher filtration load due to intercepting large-sized impurities, and can be cleaned at high frequency through independent movement, which can adapt to the load difference of graded filtration; at the same time, the sliding frame can scrape the inner wall of the quarter-cylindrical pretreatment chamber during the movement, which can also achieve the effect of retrieval of residual impurities in the chamber and reduce the accumulation of impurities in the chamber.

[0014] 2. In this invention, the driving mechanism drives the sliding frame to move linearly through the magnetic cooperation between the electromagnet and the ferromagnetic block, and the rotating mechanism drives the sliding frame to rotate through the engagement of the electric telescopic shaft and the transmission groove. The two mechanisms work together to realize the switching of the grid plate posture and the movement of its position, which is convenient to operate and avoids complex linkage structures.

[0015] 3. In this invention, the cleaning mechanism combines cleaning brush sweeping with high-pressure water jet rinsing, and works with windows and collection tanks to achieve efficient removal and centralized collection of impurities. The grating plate can be cleaned without disassembling the sliding frame, shortening downtime for maintenance. The grating plate and the sliding frame are connected by a snap-fit, which facilitates subsequent disassembly and replacement.

[0016] 4. In this invention, the differential pressure sensor is linked with the controller, which can monitor the blockage status of each grid plate in real time and automatically trigger the cleaning process. Each actuator works in concert to improve the automation level of the device and adapt to the continuous pretreatment requirements of meat duck processing wastewater. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an environmentally friendly and harmless wastewater treatment device for duck processing proposed in this invention. Figure 2 This is a schematic diagram of the inlet, pretreatment chamber, and outlet of an environmentally friendly and harmless wastewater treatment device for duck processing proposed in this invention. Figure 3 This is a vertical sectional view of the pretreatment chamber of an environmentally friendly and harmless wastewater treatment device for duck processing proposed in this invention. Figure 4 This is a schematic diagram of the rotating mechanism of an environmentally friendly and harmless wastewater treatment device for duck processing proposed in this invention. Figure 5 This is a schematic diagram of the cleaning mechanism of an environmentally friendly and harmless wastewater treatment device for duck processing proposed in this invention. Figure 6 This is a vertical sectional view of the sliding frame of an environmentally friendly and harmless wastewater treatment device for duck processing proposed in this invention.

[0018] In the diagram: 1. Wastewater treatment equipment body; 2. Pretreatment chamber; 3. Inlet; 4. Outlet; 5. Vertical track; 6. Arc track; 7. Horizontal track; 8. Sliding track; 9. Sliding frame; 10. Grating plate; 11. Electric telescopic rod; 12. Mounting frame; 13. Sliding frame; 14. Separating spring; 15. Electromagnet; 16. Ferromagnetic block; 17. Drive motor; 18. Electric telescopic shaft; 19. Transmission groove; 20. Window; 21. Electric window door; 22. Receiving tank; 23. Cleaning motor; 24. Threaded rod; 25. Sliding frame; 26. End plate; 27. Sliding rod; 28. Mounting sleeve; 29. ​​Rotating roller; 30. Cleaning brush; 31. Collection tank; 32. High-pressure water pipe; 33. Connecting frame; 34. Diverter pipe; 35. Spray nozzle; 36. Differential pressure sensor; 37. Controller. 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 Figures 1-3 An environmentally friendly and harmless wastewater treatment device for duck processing includes a wastewater treatment equipment body 1. The wastewater treatment equipment body 1 has a pretreatment chamber 2 at its inlet end. The pretreatment chamber 2 is in the shape of a quarter cylinder. The top of the pretreatment chamber 2 is connected to an inlet 3 and the side is connected to an outlet 4. The outlet end of the outlet 4 is connected to the interior of the wastewater treatment equipment body 1.

[0021] The inner wall of the pretreatment chamber 2 is a smooth arc surface, which avoids the accumulation of impurities on the inner wall of the pretreatment chamber 2. The axis of the feed inlet 3 is set vertically to guide the sewage to flow into the pretreatment chamber 2 from top to bottom. The axis of the discharge outlet 4 is set horizontally and is coaxially connected with the water inlet channel of the sewage treatment equipment body 1 to ensure smooth sewage flow.

[0022] The inner walls of the feed inlet 3, the pretreatment chamber 2 and the discharge outlet 4 are fixedly connected to a sliding rail 8. Multiple sliding frames 9 are slidably connected on the sliding rail 8. The outer side of the sliding frame 9 is sealed and slidably engaged with the inner wall of the pretreatment chamber 2 and the discharge outlet 4. The inside of the frame 9 is sealed and snapped with a grid plate 10. The grid aperture of the multiple grid plates 10 gradually decreases from the feed inlet 3 toward the discharge outlet 4.

[0023] A sealing gasket is embedded on the outside of the sliding frame 9. The sealing gasket fits tightly against the inner wall of the sliding track 8, which can prevent sewage from leaking through the gap between the sliding frame 9 and the track. The grid plate 10 and the sliding frame 9 adopt a snap-fit ​​connection structure, which facilitates the quick disassembly and replacement of the grid plate 10. Multiple grid plates 10 are arranged according to the aperture gradient to achieve graded interception of impurities of different sizes in sewage.

[0024] The feed inlet 3 is the cleaning position of the grid plate 10. When the grid plate 10 moves to the cleaning position, it is easy to be cleaned. The discharge outlet 4 is the filtering position of the grid plate 10. When the grid plate 10 is in the filtering position, it maintains the filtering working state.

[0025] A vertical track 5 is fixedly connected to the inner wall of the feed inlet 3, and an arc track 6 is fixedly connected to the inner wall of the pretreatment chamber 2. The arc track 6 is coaxially arranged with the pretreatment chamber 2. A horizontal track 7 is fixedly connected to the inner wall of the discharge outlet 4. The vertical track 5, the arc track 6, and the horizontal track 7 are smoothly connected to form a sliding track 8.

[0026] The curvature of the inner wall of the pre-processing cavity 2 matches the curvature of the arc track 6, which can guide the sliding frame 9 to move along the preset trajectory.

[0027] The inner wall of the sliding track 8 is provided with a guide groove, and the bottom of the sliding frame 9 is provided with a guide block that cooperates with the guide groove to ensure that the sliding frame 9 does not deviate when it moves along the track.

[0028] Both the feed inlet 3 and the discharge outlet 4 are connected to a drive mechanism, which is used to drive the sliding frame 9 to slide linearly along both ends of the sliding track 8.

[0029] The drive mechanisms are respectively set for the vertical track 5 and the horizontal track 7. The two sets of drive mechanisms have the same structural specifications and can respectively drive the sliding frame 9 to make vertical linear motion on the vertical track 5 and horizontal linear motion on the horizontal track 7, so as to meet the motion requirements of the sliding frame 9 in different track sections.

[0030] The drive mechanism includes an electric telescopic rod 11 installed on the outside of the feed inlet. The output end of the electric telescopic rod 11 is fixedly connected to a mounting frame 12. Multiple sliding frames 13 are connected to the mounting frame 12. The multiple sliding frames 13 correspond one-to-one with multiple sliding frames 9. Electromagnets 15 are installed on the sliding frames 13.

[0031] Reference Figure 6 The sliding frame 9 has a ferromagnetic block 16 embedded inside. The electromagnet 15 and the ferromagnetic block 16 are magnetically engaged. When the output end of the electric telescopic rod 11 moves, the sliding frame 9 is driven to slide along the feed port axis through the magnetic engagement of the electromagnet 15 and the ferromagnetic block 16.

[0032] The feed inlet includes a feed port 3 and a discharge port 4. Two sets of drive mechanisms are respectively installed on the outer side walls of the two feed ports. The installation position is parallel to the axis of the corresponding track. The magnetic attraction force of the electromagnet 15 can be adjusted by the controller 37. When the sliding frame 9 needs to be fixed, the attraction force is increased, and when the sliding frame 9 needs to move, the attraction force is reduced, taking into account both the stability of the fixation and the flexibility of the movement.

[0033] A drive mechanism is symmetrically arranged on both sides of the feed inlet, thereby improving the smoothness of the movement of the drive sliding frame 9.

[0034] Multiple sliding brackets 13 are slidably connected to the mounting bracket 12, and a separator spring 14 is fixedly connected between the mounting bracket 12 and the outermost sliding bracket 13, as well as between two adjacent sliding brackets 13.

[0035] When the separating spring 14 is in its naturally extended state, it can maintain a fixed distance between two adjacent sliding frames 13, thereby driving the corresponding sliding frame 9 to maintain a distance within the track, preventing multiple sliding frames 9 from colliding and interfering during movement. The sliding frame 13 and the mounting frame 12 are connected by a sliding guide rail to ensure that the sliding frame 13 slides smoothly along the mounting frame 12.

[0036] Reference Figure 2 and Figure 4A rotating mechanism is connected to the pretreatment chamber 2 to drive the sliding frame 9 to rotate coaxially along the middle of the sliding track 8.

[0037] The middle part of the sliding track 8 is an arc track 6. The driving direction of the rotating mechanism is adapted to the tangential direction of the arc track 6, which can drive the sliding frame 9 to make circular motion along the arc track 6, realize the attitude switching of the sliding frame 9 from vertical to horizontal state, and meet the conversion requirements of the grid plate 10 between the two material ports.

[0038] The rotating mechanism includes a drive motor 17 installed on the outside of the pretreatment chamber 2. The output end of the drive motor 17 is fixedly connected to an electric telescopic shaft 18. One end of the sliding frame 9 is provided with a transmission groove 19. The electric telescopic shaft 18 is sealed through the side wall of the pretreatment chamber 2, and its output end is extended and engaged with the transmission groove 19. The electric telescopic shaft 18 coincides with the center of the arc track 6.

[0039] An electric telescopic shaft 18 is also rotatably mounted on the side of the pretreatment chamber 2 away from the drive motor 17. A transmission groove 19 is also provided on the sliding frame 9 to engage with the electric telescopic shaft 18. The two electric telescopic shafts 18 are symmetrically distributed to improve the smoothness of the rotation of the driving sliding frame 9.

[0040] The end of the electric telescopic shaft 18 is provided with a limiting protrusion, and the inner side of the transmission groove 19 is provided with a limiting groove that matches the limiting protrusion. After the two are engaged, they can transmit torque and prevent slippage when the drive motor 17 is running. A sealed bearing is provided at the penetration point between the electric telescopic shaft 18 and the pretreatment chamber 2, which ensures the normal rotation of the electric telescopic shaft 18 and prevents sewage leakage in the pretreatment chamber 2.

[0041] Reference Figure 3 and Figure 5 A window 20 is provided on the side of the feed inlet 3, and an electric window door 21 is installed on the window 20.

[0042] The opening position of window 20 corresponds to the middle section of vertical track 5, and its size is larger than the outer size of sliding frame 9, so that the grille plate 10 can be taken out or put in from window 20. The electric window door 21 is electrically connected to controller 37 and can automatically open or close according to cleaning instructions. A sealing strip is provided between window 20 and electric window door 21 to ensure airtightness.

[0043] A cleaning mechanism is connected to the side of the feed inlet 3 away from the window 20 for cleaning the grid plate 10 at the window 20. The cleaning mechanism includes a cleaning motor 23 installed on the outside of the feed inlet 3. A threaded rod 24 is coaxially fixedly connected to the output end of the cleaning motor 23. A sliding frame 25 is threadedly connected to the threaded rod 24. One end of the sliding frame 25 is sealed and slides through the side wall of the feed inlet 3 and is fixedly connected to an installation sleeve 28. A rotating roller 29 is connected to the installation sleeve 28. A cleaning brush 30 is fixedly connected to the rotating roller 29. A collection trough 31 is fixedly connected to the outside of the window 20. When the cleaning brush 30 moves axially along the threaded rod 24 with the sliding frame 25, it sweeps the upper surface of the grid plate 10 and pushes the debris out of the window 20 and into the inside of the collection trough 31.

[0044] The rotating roller 29 is rotatably connected to the mounting sleeve 28. The rotating roller 29 can rotate on its own as the sliding frame 25 moves when the cleaning brush 30 contacts the grid plate 10. If a gear is fixed on the rotating roller 29 and a rack is fixed on the inner wall of the feed inlet 3, the gear meshes on the rack, which improves the cleaning effect of the cleaning brush 30 on the surface of the grid plate 10.

[0045] The opening of the collection trough 31 faces upward and is aligned with the outer edge of the window 20, which can receive impurities pushed out from the window 20 and prevent impurities from scattering and causing pollution.

[0046] The cleaning mechanism also includes a flushing assembly, which includes a connecting frame 33 fixedly connected to the mounting sleeve 28. A diversion pipe 34 is fixedly connected to the connecting frame 33. The inlet end of the diversion pipe 34 is connected to a high-pressure water pipe 32, and the outlet end is provided with multiple spray holes 35. The high-pressure water pipe 32 is sealed through the feed inlet 3 and connected to an external high-pressure water source. The water outlet direction of the multiple spray holes 35 is towards the contact gap between the cleaning brush 30 and the grid plate 10.

[0047] The nozzles 35 are arranged in an array on the side wall of the diversion pipe 34. The water pressure can be adjusted by an external high-pressure water source. The high-pressure water flow can impact and clean the impurities between the brush 30 and the grid plate 10, making it easier to clean and remove the impurities, thus achieving deep cleaning of the grid plate 10.

[0048] The sliding frame 25 has a groove inside for the high-pressure water pipe 32 to pass through, so that the high-pressure water pipe 32 can maintain water supply to the diversion pipe 34 when the sliding frame 25 moves.

[0049] The inner side of the feed inlet 3 is connected to a receiving groove 22, which is used to accommodate the mounting sleeve 28, rotating roller 29, cleaning brush 30, connecting frame 33 and diversion pipe 34.

[0050] The sliding frame 25 includes an end plate 26 threaded through and connected to the threaded rod 24. Four sliding rods 27 are fixedly connected to the end of the end plate 26 near the cleaning motor 23. The ends of the four sliding rods 27 away from the end plate 26 are sealed and penetrate into the receiving groove 22, and are fixedly connected to the mounting sleeve 28 and the connecting frame 33. Two mounting sleeves 28 at the same horizontal height are rotatably connected to a rotating roller 29. The two rotating rollers 29 and two diverting pipes 34 are distributed on both sides of the corresponding grid plate 10, which facilitates the synchronous cleaning of both sides of the grid plate 10. The upper surface of the corresponding grid plate 10 is aligned with or slightly higher than the bottom of the window 20, which improves the subsequent cleaning effect.

[0051] The location of the receiving groove 22 corresponds to the movement trajectory of the cleaning mechanism, and its internal space dimensions match the external dimensions of the mounting sleeve 28 and auxiliary components. When the cleaning mechanism is not working, the mounting sleeve 28 and auxiliary components can be stored in the receiving groove 22 to avoid interfering with the movement of the sliding frame 9.

[0052] When in operation, multiple sliding frames 9 are located on the horizontal track 7 inside the discharge port 4 and are magnetically attracted and fixed by the drive mechanism. A differential pressure sensor 36 is installed on the discharge port 4. Multiple detection ends of the differential pressure sensor 36 are distributed on both sides of multiple grid plates 10 to detect the pressure difference on both sides of a single grid plate 10. The electric telescopic rod 11, electromagnet 15, drive motor 17, electric window 21, cleaning motor 23, external high-pressure water source and differential pressure sensor 36 are all electrically connected to a controller 37. The controller 37 is installed on the sewage treatment equipment body 1 and is used to receive the signal from the differential pressure sensor 36 and control the working status of each actuator.

[0053] The differential pressure sensor 36 can monitor the pressure difference between the two sides of each grid plate 10 in real time. When the pressure difference reaches the preset threshold, it is determined that the corresponding grid plate 10 is blocked. The controller 37 will automatically trigger the drive mechanism, the rotation mechanism and the cleaning mechanism to move and clean the grid plate 10 in sequence. The actuators include the electric telescopic rod 11, the electromagnet 15, the drive motor 17, the electric window 21, the cleaning motor 23 and the control valve of the external high-pressure water source. Each actuator works together under the command of the controller 37 to realize the automated operation of the device.

[0054] In use, multiple sliding frames 9 carry grid plates 10 with different apertures. They are fixed to the horizontal track 7 inside the discharge port 4 in sequence according to the magnetic adsorption of the drive mechanism, with the large aperture grid plate 10 being closer to the feed inlet 3 and the small aperture grid plate 10 being closer to the sewage treatment equipment body 1. The adjacent sliding frames 9 maintain a fixed distance defined by the separating spring 14.

[0055] Wastewater containing duck feathers, bone fragments, internal organ residues, and small meat scraps generated from duck processing flows vertically into a quarter-cylindrical pretreatment chamber 2 through the feed inlet 3. It passes through multiple grid plates 10 in sequence to complete the grading and interception. Large impurities such as duck feathers and bone fragments are intercepted by the grid plates 10 with larger apertures, while small impurities such as small meat scraps and grease flocs are intercepted by the subsequent small-aperture grid plates 10. The filtered wastewater enters the wastewater treatment equipment body 1 through the discharge outlet 4.

[0056] The differential pressure sensor 36 monitors the pressure difference on both sides of each grid plate 10 in real time, and the data is synchronously transmitted to the controller 37. The controller 37 records the arrangement position of each grid plate 10 on the horizontal track 7, where the end closer to the arc track 6 is the "front end" and the end farther away from the arc track 6 is the "rear end".

[0057] When the pressure difference between the two sides of a target grid plate 10 reaches a preset threshold, the controller 37 determines that the grid plate is blocked and then starts the working process. According to the position of the target grid plate 10, the controller 37 first instructs the electromagnets 15 of the drive mechanism corresponding to all unblocked grid plates 10 in front of it to reduce the attraction force, and starts the electric telescopic rod 11 on the side of the discharge port 4 to push the mounting frame 12, which drives all the front sliding frames 9 to move sequentially towards the arc track 6. Whenever a front sliding frame 9 moves to the end of the arc track 6, the electric telescopic shaft 18 of the rotating mechanism extends and gets into its transmission groove 19, and the drive motor 17 drives it to rotate 90° to switch to the vertical state. Then, the electromagnet 15 at the corresponding position on the side of the feed inlet 3 moves down and is energized to attract the ferromagnetic block 16 of the sliding frame 9, and moves it to the temporary storage position of the vertical track 5 for fixation. This step is repeated until there is no obstruction in front of the sliding frame 9 corresponding to the target grid plate 10 and it moves smoothly to the end of the arc track 6, and the electric telescopic rod 11 on the side of the discharge port 4 stops moving.

[0058] The electric telescopic shaft 18 of the rotating mechanism extends and engages with the transmission groove 19 of the target sliding frame 9. The drive motor 17 starts and drives the target sliding frame 9 to rotate 90° coaxially along the arc track 6 through the electric telescopic shaft 18, completing the attitude switch from horizontal to vertical. The corresponding electromagnet 15 of the drive mechanism on the feed port 3 moves down to the cleaning position, i.e., the position corresponding to the window 20, and is energized to attract the ferromagnetic block 16 of the target sliding frame 9, achieving precise reception and fixation.

[0059] The controller 37 commands the electric window 21 to open, and simultaneously starts the cleaning mechanism. The output end of the cleaning motor 23 drives the threaded rod 24 to rotate, which in turn drives the sliding frame 25 and the mounting sleeve 28 to move. The rotating roller 29 and the cleaning brush 30, which are stored inside the receiving groove 22, are moved out. The cleaning brush 30 slides against the surface of the grid plate 10, and the rotating roller 29 rotates on its own as it moves, cleaning the duck feathers, residual bone fragments and other impurities wrapped around the surface of the grid plate 10. At the same time, the high-pressure water source is turned on, and the water flows through the high-pressure water pipe 32 and the diversion pipe 34 and sprays out from the nozzle 35, impacting the contact gap between the cleaning brush 30 and the grid plate 10. After the impurities are washed away, they are pushed by the cleaning brush 30 and fall into the collection tank 31 through the window 20.

[0060] Before the target grid is cleaned, the controller 37 initiates the reset process of the front temporary grid. The electromagnet 15 on the temporary storage position of the feed inlet 3 reduces its suction force, and the electric telescopic rod 11 pushes the temporary sliding frame 9 to move along the vertical track 5 to the arc track 6. After the rotating mechanism rotates 90° to switch to the horizontal state, the electric telescopic rod 11 on the discharge port 4 pulls the mounting frame 12 in the opposite direction, and sends the front sliding frame 9 back to the original temporary storage position of the horizontal track 7 in sequence. The electromagnet 15 increases its suction force to fix it.

[0061] After the target grid is cleaned, the cleaning mechanism is reset and stored in the receiving slot 22, and the electric window door 21 is closed. Under the coordinated action of the feed inlet 3 drive mechanism and the rotating mechanism, the target sliding frame 9 returns to its original position along the path of the vertical track 5, the arc track 6 and the horizontal track 7. The electromagnet 15 of the drive mechanism increases the attraction force to fix it again. If there are still other grid plates 10 with excessive pressure difference, the controller 37 repeats the above process of "front-end temporary storage, target transfer, cleaning and overall reset" to realize the device's cyclic filtration and cleaning operation.

[0062] 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.

Claims

1. A kind of meat duck processing sewage environmental protection harmless treatment device, including sewage treatment equipment ontology (1), the water inlet end of sewage treatment equipment ontology (1) is equipped with pre-treatment cavity (2), it is characterized by, The pretreatment cavity (2) is in the shape of a quarter cylinder, the top of the pretreatment cavity (2) is communicated with a feeding port (3), the side is communicated with a discharging port (4), and the water outlet end of the discharging port (4) is communicated with the inside of the sewage treatment equipment body (1); The feeding port (3), the pretreatment cavity (2) and the discharging port (4) are fixedly connected with sliding rails (8) on the inner walls, a plurality of sliding frames (9) are slidably connected on the sliding rails (8), the outer side of the sliding frame (9) is in sealing sliding fit with the inner walls of the pretreatment cavity (2) and the discharging port (4), the inside of the sliding frame (9) is sealingly connected with a grating plate (10), the grating hole diameters of the plurality of grating plates (10) gradually decrease from the feeding port (3) to the discharging port (4); The feeding port (3) and the discharging port (4) are both connected with driving mechanisms for driving the sliding frame (9) to linearly slide along the two ends of the sliding rail (8); The pretreatment cavity (2) is connected with a rotating mechanism for driving the sliding frame (9) to coaxially rotate along the middle part of the sliding rail (8); The feeding port (3) is provided with a window (20) on the side, and the window (20) is provided with an electric window door (21).

2. The meat duck processing sewage environment-friendly harmless treatment device according to claim 1, characterized in that, The feeding port (3) is fixedly connected with a vertical rail (5) on the inner wall, the pretreatment cavity (2) is fixedly connected with an arc-shaped rail (6) on the inner wall, the arc-shaped rail (6) is coaxially arranged with the pretreatment cavity (2), and the discharging port (4) is fixedly connected with a horizontal rail (7) on the inner wall; the vertical rail (5), the arc-shaped rail (6) and the horizontal rail (7) are smoothly connected and form the sliding rail (8).

3. The meat duck processing sewage environment-friendly harmless treatment device according to claim 2, characterized in that, The driving mechanism comprises an electric telescopic rod (11) mounted on the outside of the feeding port, the output end of the electric telescopic rod (11) is fixedly connected with a mounting frame (12), a plurality of sliding frames (13) are connected on the mounting frame (12), the plurality of sliding frames (13) correspond to the plurality of sliding frames (9) one by one, an electromagnet (15) is mounted on the sliding frame (13), a ferromagnetic block (16) is embedded in the sliding frame (9), the electromagnet (15) and the ferromagnetic block (16) are magnetically matched, and when the output end of the electric telescopic rod (11) moves, the sliding frame (9) is driven to slide along the axis of the feeding port through the magnetic matching of the electromagnet (15) and the ferromagnetic block (16); The plurality of sliding frames (13) are all slidably connected on the mounting frame (12), and the mounting frame (12) is fixedly connected with the outermost sliding frame (13) and the adjacent two sliding frames (13).

4. The meat duck processing sewage environment-friendly harmless treatment device according to claim 3, characterized in that, The rotating mechanism comprises a driving motor (17) mounted on the outside of the pretreatment cavity (2), the output end of the driving motor (17) is fixedly connected with an electric telescopic shaft (18), one end of the sliding frame (9) is provided with a transmission groove (19), the electric telescopic shaft (18) sealingly penetrates through the side wall of the pretreatment cavity (2), and the output end of the electric telescopic shaft (18) is in clamping fit with the transmission groove (19) after being elongated, and the center of the arc-shaped rail (6) coincides with the electric telescopic shaft (18).

5. The meat duck processing sewage environment-friendly harmless treatment device according to claim 4, characterized in that, The feeding port (3) is connected with a cleaning mechanism on the side away from the window (20) for cleaning the grating plate (10) at the window (20), the cleaning mechanism comprises a cleaning motor (23) mounted on the outside of the feeding port (3), a threaded rod (24) coaxially fixedly connected to the output end of the cleaning motor (23), a sliding frame (25) threadedly connected to the threaded rod (24), one end of the sliding frame (25) sealingly slidingly penetrating the side wall of the feeding port (3) and fixedly connected with a mounting sleeve (28), a rotating roller (29) connected to the mounting sleeve (28), a cleaning brush (30) fixedly connected to the rotating roller (29), and a collecting groove (31) fixedly connected to the outside of the window (20), wherein the cleaning brush (30) sweeps the upper surface of the grating plate (10) when moving along the threaded rod (24) with the sliding frame (25) and pushes the sundries out of the window (20) to fall into the inside of the collecting groove (31).

6. The environmentally friendly and harmless sewage treatment device for processing meat ducks according to claim 5, characterized in that, The cleaning mechanism further comprises a flushing assembly, the flushing assembly comprises a connecting frame (33) fixedly connected to the mounting sleeve (28), a shunt pipe (34) fixedly connected to the connecting frame (33), a high-pressure water pipe (32) communicated with the water inlet end of the shunt pipe (34), and a plurality of spray holes (35) formed in the water outlet end of the shunt pipe (34), the high-pressure water pipe (32) sealingly penetrates the feeding port (3) and is communicated with an external high-pressure water source, and the water outlet directions of the plurality of spray holes (35) are towards the contact gap between the cleaning brush (30) and the grating plate (10).

7. The meat duck processing sewage environment-friendly harmless treatment device according to claim 6, characterized in that, The inside of the feeding port (3) is communicated with a containing groove (22) for containing the mounting sleeve (28), the rotating roller (29), the cleaning brush (30), the connecting frame (33) and the shunt pipe (34), the sliding frame (25) comprises an end plate (26) threadedly connected to the threaded rod (24), a plurality of sliding rods (27) fixedly connected to one end of the end plate (26) close to the cleaning motor (23), and the plurality of sliding rods (27) sealingly penetrate into the containing groove (22) from one end away from the end plate (26) and are fixedly connected with the mounting sleeve (28) and the connecting frame (33).

8. The meat duck processing sewage environment-friendly harmless treatment device according to claim 5, characterized in that, A plurality of the sliding frames (9) in the working state are located on the horizontal rails (7) in the inside of the discharge port (4) and are magnetically adsorbed and fixed by the driving mechanism, a differential pressure sensor (36) is mounted on the discharge port (4), a plurality of detection ends of the differential pressure sensor (36) are correspondingly distributed on both sides of the plurality of grating plates (10) for detecting the pressure difference on both sides of the single grating plate (10), the electric telescopic rod (11), the electromagnet (15), the driving motor (17), the electric window door (21), the cleaning motor (23), the external high-pressure water source and the differential pressure sensor (36) are all electrically connected with a controller (37) mounted on the sewage treatment equipment body (1) for receiving the signals of the differential pressure sensor (36) and controlling the working states of the actuators.

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