Solid impurity crushing treatment device for sewage treatment

Abstract

A solid impurity crushing treatment device for sewage treatment belongs to the technical field of sewage treatment.The solid impurity crushing treatment device comprises a machine body, the inner wall of the machine body is slidably connected with a filtering grating, the side wall of the filtering grating is provided with a backflushing anti-blocking mechanism, a mounting groove is formed in the machine body, and the inner wall of the mounting groove is provided with a knocking discharging mechanism; a uniform mixing and beating mechanism is arranged on the inner wall of the machine body, a smashing roller is fixedly installed on the inner wall of the machine body, a gear motor is fixedly installed on the outer wall of the machine body, an output shaft of the gear motor is fixedly connected with the axis of the smashing roller, and the backflushing anti-blocking mechanism comprises a fixed sliding block arranged on the side wall of a filtering grating and drives the filtering grating to move up and down in a reciprocating mode. The inside of the filtering grid is backwashed through water flow, the knocking discharging mechanism comprises a knocking rod which is arranged below the filtering grid and moves, the knocking rod can be in contact with the filtering grid in the rapid downward moving process, the filtering grid is knocked, and impurities adsorbed in the filtering grid are thrown away.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a solid impurity crushing and treatment device for wastewater treatment. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, healthcare, and catering, and is increasingly becoming a part of everyday life. Urban wastewater is mainly discharged through sewage pipes, and it typically contains a significant amount of solid impurities and oil. Before entering the main treatment facilities, these solid impurities need to be treated. Solid impurity treatment involves efficiently crushing these solid wastes into fine particles, allowing them to flow smoothly through subsequent processes, preventing pipe blockage, and degrading them through microorganisms or ultimately removing them by sedimentation. This protects critical equipment and ensures the stable and continuous operation of the entire wastewater treatment system.

[0003] The solid waste treatment device and method for wastewater recycling disclosed in patent number "CN115846364B" uses several cleaning protrusions to clean the drainage holes of the draining screen, thereby effectively preventing the draining screen from clogging and ensuring the drainage effect of the draining screen. When two cleaning blocks get close to a certain extent, the magnetic poles of the side magnetic plates on the side walls of the two cleaning blocks are opposite, which allows the two cleaning blocks to attract each other. As they get closer, the two cleaning blocks can effectively clean the remaining area of ​​the draining screen.

[0004] However, the above-mentioned device still has the following problems during implementation: Because solid impurities in wastewater have high moisture content and strong viscosity, when cleaning blocks are used to squeeze and scrape the drain screen, the lateral force generated by the direct scraping pushes the impurities into the deep pores of the drain screen. At the same time, the pressed and sticky impurities adhere tightly to the drain screen, causing the impurities to form irreversible and tight adhesion within the mesh. Furthermore, the coefficient of friction between the cleaning block and the drain screen increases with the amount of impurities adhering, which in turn exacerbates the clogging of the drain screen and reduces the flow rate, leading to a decrease in operating efficiency and a reduction in the lifespan of the equipment. Summary of the Invention

[0005] The purpose of this invention is to solve the problems mentioned in the background art, and to provide a solid impurity crushing and treatment device for wastewater treatment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a solid impurity pulverizing and processing device for sewage treatment, comprising a body, a filter screen slidably connected to the inner wall of the body, and a backwash anti-clogging mechanism provided on the side wall of the filter screen; an installation groove is provided inside the body, and a knocking discharge mechanism is provided on the inner wall of the installation groove; a mixing and tapping mechanism is provided on the inner wall of the body; a pulverizing roller is fixedly installed on the inner wall of the body, and a reduction motor is fixedly installed on the outer wall of the body; the output shaft of the reduction motor is fixedly connected to the axis of the pulverizing roller; a water inlet frame is fixedly connected to the top of the body, and a drain valve is fixedly installed on the outer wall of the body; The backwashing and anti-clogging mechanism includes a fixed slider installed on the side wall of the filter screen, which drives the filter screen to move up and down reciprocally, and backwashes the inside of the filter screen through water flow. The tapping discharge mechanism includes a tapping rod that is positioned below the filter grid and moves downwards. During the rapid downward movement of the filter grid, the tapping rod will come into contact with the filter grid itself, causing the filter grid to be tapped and the impurities adsorbed inside to be thrown off. The mixing and tapping mechanism includes a first tapping plate disposed inside the machine body. During the rapid downward movement of the filter grid, the first tapping plate is simultaneously driven to rotate and stir inside the machine body, preventing impurities from accumulating at the bottom of the machine body.

[0007] Furthermore, a first tension spring is fixedly connected to the bottom of the fixed slider, a circular frame is fixedly connected to the top of the first tension spring, and a square frame is fixedly connected above the circular frame. Two U-shaped blocks are slidably connected through the outer walls of the circular frame and the square frame. A second tension spring is fixedly connected to the opposite sides of the two U-shaped blocks. A sliding plate is slidably connected to the inner wall of the square frame. A pressing rod is fixedly connected to the side wall of the sliding plate, and the outer wall of the pressing rod is slidably connected through the inside of the square frame. A first spring is fixedly connected to the end of the sliding plate away from the pressing rod. A through groove is formed inside the fixed slider, and a sliding groove is formed on the inner wall of the machine body. A fixed rod is fixedly connected to the inner wall of the sliding groove.

[0008] Furthermore, the outer wall of the fixed slider is fixedly connected to the outer wall of the filter grid, the outer wall of the fixed slider is slidably connected to the inner wall of the slide groove, the end of the first tension spring away from the fixed slider is fixedly connected to the inner wall of the slide groove, the inner wall of the circular frame corresponds to the inner wall of the through groove, the side wall of the sliding plate corresponds to the outer inclined surface of the upper end of the U-shaped block, the end of the first spring away from the sliding plate is fixedly connected to the inner wall of the square frame, the outer wall of the end of the fixed rod corresponds to the inner wall of the through groove, and the top of the through groove corresponds to the outer inclined surface of the lower end of the U-shaped block.

[0009] Furthermore, the inner wall of the chute is rotatably connected to a first rotating rod, and the outer wall of the first rotating rod inside the chute has a threaded groove. The end of the extrusion rod away from the sliding plate is engaged with the inner wall of the threaded groove, and the interior of the fixed slider is slidably connected to the outer wall of the first rotating rod.

[0010] Furthermore, the tapping discharge mechanism includes a fixed block, and a sliding rod is slidably connected through the interior of the fixed block. A connecting plate is fixedly connected to the top of the sliding rod, and the end of the tapping rod is fixedly connected to the top of the connecting plate. A perforated plate is fixedly connected to the outer wall of the sliding rod, and the outer wall of the perforated plate is slidably connected to the inner wall of the fixed block. A second spring is fixedly connected to the bottom of the perforated plate, and several protrusions are fixedly connected to the outer wall of the sliding rod.

[0011] Furthermore, the outer wall of the fixing block is fixedly connected to the inner wall of the mounting groove, the outer wall of the connecting plate is slidably connected to the inner wall of the mounting groove, the end of the striking rod away from the connecting plate corresponds to the lower part of the filter grid, and the end of the second spring away from the perforated plate is fixedly connected to the inner wall of the fixing block.

[0012] Furthermore, the mixing and tapping mechanism includes a mounting frame, and a connecting shaft is rotatably connected to the outer wall of the mounting frame. A torsion spring is fixedly connected to the side wall of the connecting shaft, and the end of the torsion spring away from the connecting shaft is fixedly connected to the side wall of the mounting frame. A fixing plate is fixedly connected to the outer wall of the connecting shaft. The outer wall of the first tapping plate is fixedly connected to the end of the fixing plate, and a second tapping plate is rotatably connected to the side wall of the first tapping plate.

[0013] Furthermore, the outer wall of the mounting bracket is fixedly connected to the inner wall of the machine body, the outer walls of the plurality of protrusions correspond to the ends of the fixing plate, the outer wall of the first striking plate is slidably connected to the inner wall of the machine body, and the outer wall of the second striking plate is slidably connected to the inner wall of the machine body.

[0014] Furthermore, the machine body is internally rotatably connected to a second rotating shaft, and a water wheel is fixedly installed on the outer wall of the second rotating shaft. A first helical gear is fixedly connected to the end of the second rotating shaft, and a second helical gear is fixedly connected to the top of the first rotating rod. The inner wall of the teeth of the first helical gear meshes with the inner wall of the teeth of the second helical gear.

[0015] Compared with existing technologies, the above solution has the following advantages: The tension of the second spring causes the two U-shaped blocks to reset, allowing their ends to slide back into the square frame. Simultaneously, the ends of the U-shaped blocks limit the sliding plate, causing the squeezing rod to disengage from the threaded groove. During this process, the impact of the water flow on the filter screen causes it to move downwards along the machine's interior. The tension of the first spring accelerates the downward movement of the filter screen, pressing down on the wastewater that hasn't yet been discharged. At this point, some of the wastewater passes through the gaps in the filter screen and is squeezed back up to the top. During this process, the water flow reverses the pressure on the gaps and flows upwards, forming a reverse impact flow that passes through the gaps, dislodging blockages from the filter screen, completely removing impurities adhering to the gaps, preventing equipment blockage, and improving continuous processing capacity.

[0016] 2. The filter screen slides downwards via a fixed slider. The bottom of the filter screen then contacts the top of the striking rod, subjecting both the screen and the rod to a significant impact force. This causes a change in the speed of the filter screen's downward movement, resulting in a strong impact on impurities adhering to the gaps within the screen. Simultaneously, the screen itself vibrates due to the impact, transmitting this vibration to the impurities within each gap. This vibration further forces the impurities to detach. Because the impurities mixed in the wastewater are highly viscous, the vibration causes them to continue moving downwards due to inertia, thus subjecting them to a shearing force within the filter screen gaps. This effectively throws the sticky impurities to the top of the filter screen, enhancing its adaptability and further improving the efficiency of impurity removal.

[0017] 3. During the flipping process of the fixed plate, the corresponding protrusion will pass over the fixed plate and disengage. At this time, the fixed plate is no longer subjected to the squeezing force of the protrusion and will be reset and flipped by the torque of the torsion spring. This causes the first tapping plate to reset and slide inside the machine body. By designing multiple protrusions, the first tapping plate can continuously flip. During this process, the first tapping plate can scrape impurities off the inner wall of the machine body, while driving one end of the second tapping plate to tap the bottom of the machine body. This can squeeze and tap the impurities remaining at the bottom of the machine body, so that the impurities are mixed with the sewage. This prevents the impurities from clumping or adhering to the dead corners at the bottom of the machine body, and makes the crushed solid particles easier to mix evenly with the sewage, avoiding uneven treatment or secondary pollution caused by excessive concentration in dead corners. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure proposed in this invention; Figure 2 This is a schematic diagram of the internal structure of the body proposed in this invention; Figure 3This is a schematic diagram of the structural transmission of the water turbine and filter screen proposed in this invention; Figure 4 This is a schematic diagram of the structural transmission of the first rotating rod and the pressing rod proposed in this invention; Figure 5 This is a schematic diagram of the structural connection between the fixed slider and the extrusion rod proposed in this invention; Figure 6 This is a schematic diagram of the transmission structure of the striking rod and protrusion proposed in this invention; Figure 7 This is a schematic diagram of the transmission structure of the protrusion and the second striking plate proposed in this invention.

[0019] The markings in the attached diagram are as follows: 1. Machine body; 2. Filter grid; 3. Backflush anti-clogging mechanism; 4. Slide chute; 5. Knocking discharge mechanism; 6. Mounting slot; 7. Mixing and tapping mechanism; 8. First rotating rod; 9. Threaded groove; 10. Second rotating shaft; 11. Water wheel; 12. First helical gear; 13. Second helical gear; 14. Crushing roller; 15. Gearbox; 16. Water inlet frame; 17. Drain valve; 301. Fixed slider; 302. First tension spring; 303. Circular frame; 304. Square Frame; 305, U-shaped block; 306, second tension spring; 307, sliding plate; 308, pressing rod; 309, first spring; 310, through groove; 311, fixing rod; 501, fixing block; 502, sliding rod; 503, connecting plate; 504, striking rod; 505, perforated plate; 506, second spring; 507, protrusion; 701, mounting bracket; 702, connecting shaft; 703, torsion spring; 704, fixing plate; 705, first striking plate; 706, second striking plate. Detailed Implementation

[0020] 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.

[0021] In the description of this invention, it should be understood that the terms "upper," "lower," "top surface," "bottom surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are only used to distinguish an entity or operation from another entity or operation, and do not require or imply any actual relationship, order, or relative importance between these entities or operations.

[0022] Example 1, please refer to Figures 1-4A solid impurity crushing and treatment device for sewage treatment includes a body 1, a filter screen 2 slidably connected to the inner wall of the body 1, and a backwash anti-clogging mechanism 3 provided on the side wall of the filter screen 2. An installation groove 6 is provided inside the body 1, and a knocking discharge mechanism 5 is provided on the inner wall of the installation groove 6. A mixing and tapping mechanism 7 is provided on the inner wall of the body 1. A first rotating rod 8 is rotatably connected through the inner wall of a chute 4. A second rotating shaft 10 is rotatably connected inside the body 1, and a water wheel 11 is fixedly installed on the outer wall of the second rotating shaft 10. The ends of the two rotating shafts 10 are fixedly connected to a first helical gear 12, and the top of the first rotating rod 8 is fixedly connected to a second helical gear 13. The inner walls of the teeth of the first helical gear 12 and the inner walls of the teeth of the second helical gear 13 mesh with each other. The inner wall of the machine body 1 is fixedly installed with a crushing roller 14, and the outer wall of the machine body 1 is fixedly installed with a reduction motor 15. The output shaft of the reduction motor 15 is fixedly connected to the axis of the crushing roller 14. The top of the machine body 1 is fixedly connected with a water inlet frame 16, and the outer wall of the machine body 1 is fixedly installed with a drain valve 17. The backwash anti-clogging mechanism 3 includes a fixed slider 301 disposed on the side wall of the filter grid 2. A first tension spring 302 is fixedly connected to the bottom of the fixed slider 301. A circular frame 303 is fixedly connected to the top of the first tension spring 302. A square frame 304 is fixedly connected above the circular frame 303. Two U-shaped blocks 305 are slidably connected through the outer walls of the circular frame 303 and the square frame 304. A second tension spring 306 is fixedly connected to the opposite sides between the two U-shaped blocks 305. A sliding plate 307 is slidably connected to the inner wall of the square frame 304. A pressing rod 308 is fixedly connected to the side wall of the sliding plate 307. The outer wall of the pressing rod 308 is slidably connected through the inside of the square frame 304. A first spring 309 is fixedly connected to the end of the sliding plate 307 away from the pressing rod 308. A through groove 310 is opened through the inside of the fixed slider 301. Furthermore, the inner wall of the body 1 is provided with a sliding groove 4, and a fixing rod 311 is fixedly connected to the inner wall of the sliding groove 4. The outer wall of the fixing slider 301 is fixedly connected to the outer wall of the filter grid 2, and the outer wall of the fixing slider 301 is slidably connected to the inner wall of the sliding groove 4. The end of the first tension spring 302 away from the fixing slider 301 is fixedly connected to the inner wall of the sliding groove 4. The inner wall of the circular frame 303 corresponds to the inner wall of the through groove 310. The side wall of the sliding plate 307 is opposite to the inclined surface of the outer wall of the upper end of the U-shaped block 305. The first spring 309 is fixedly connected to the inner wall of the square frame 304 at one end away from the sliding plate 307. The outer wall of the end of the fixed rod 311 corresponds to the inner wall of the through groove 310. The top of the through groove 310 corresponds to the outer inclined surface of the lower end of the U-shaped block 305. The outer wall of the first rotating rod 8 located inside the sliding groove 4 is provided with a threaded groove 9. The end of the pressing rod 308 away from the sliding plate 307 is engaged with the inner wall of the threaded groove 9. The interior of the fixed slider 301 is slidably connected to the outer wall of the first rotating rod 8. More specifically, when discharging sewage, solid impurities need to be treated first. Sewage with solid impurities is added into the machine body 1 through the water inlet frame 16. At the same time, the drive reduction motor 15 drives the crushing roller 14 to rotate. As the sewage flows downward through the crushing roller 14, the crushing roller 14 can block the solid impurities in the sewage and crush them into a specified volume. Then, the mixed impurities and sewage are discharged together by opening the drain valve 17. Since the bottom of the water inlet frame 16 is located on one side of the water wheel 11, the added sewage will impact one side of the water wheel 11 and cause the water wheel 11 to rotate. Then, through the matching meshing of the first helical gear 12 and the second helical gear 13, the water wheel 11 will drive the first rotating rod 8 to rotate continuously through the second rotating shaft 10. Since the end of the extrusion rod 308 is engaged with the inner wall of the threaded groove 9, during the rotation of the first rotating rod 8, the fixed slider 301 will slide upward along the inner wall of the groove 4 through the ring frame 303. During the process, the end of the extrusion rod 308 slides along the inner wall of the threaded groove 9, and then the first tension spring 302 will be continuously stretched. At the same time, the fixed slider 301 will drive the filter screen 2 to rise at a constant speed along the body 1. Then, when the extrusion rod 308 slides to the top of the threaded groove 9, the rotation of the first rotating rod 8 will extrude the end of the extrusion rod 308 through the threaded groove 9. The extrusion rod 308 is then subjected to the extrusion force, which drives the sliding plate 307 to slide along the inner wall of the square frame 304, compressing the first spring 309. At the same time, the sliding plate 307 will extrude the inclined surface of the end of the U-shaped block 305 during the sliding process, causing the U-shaped blocks 305 on both sides to move away from the inside of the square frame 304. Meanwhile, the second tension spring 306 is stretched. Then, the sliding plate 307 will pass over the end of the U-shaped block 305. At this time, the tension of the second tension spring 306 will drive the two U-shaped blocks 305 to reset, so that their ends slide back into the inside of the square frame 304. At the same time, the end of the U-shaped block 305 will limit the sliding plate 307, so that the sliding plate 307 will disengage the extrusion rod 308 from the engagement state with the threaded groove 9. During this process, the impact of the water flow on the filter screen 2 will cause it to move downward along the inside of the machine body 1. At the same time, the tension of the first tension spring 302 will accelerate the downward movement of the filter screen 2, causing the first tension spring 302 to press down on the sewage that has not yet been discharged below. At this time, some of the sewage below will pass through the gaps of the filter screen 2 and be squeezed back to the top of the filter screen 2. During this process, the water flow will squeeze the gaps of the filter screen 2 in the opposite direction and flow to the top, forming a strong backwash, which will thoroughly remove the impurities adhering to the gaps, prevent equipment blockage, and improve continuous processing capacity.

[0023] After the filter grid 2 has moved down, the fixed slider 301 will move along the inner wall of the groove 4. During this process, the fixed rod 311 will slide to the inner wall of the through groove 310. Then, the end of the fixed rod 311 will pass through the inside of the fixed slider 301 and contact the inner wall of the annular frame 303. Then, the lower end slope of the U-shaped blocks 305 on both sides will be squeezed by the fixed rod 311, so that the two U-shaped blocks 305 are far away from the inner wall of the square frame 304. Then, the sliding plate 307 is no longer limited by the U-shaped blocks 305. Then, the sliding plate 307 is driven to slide inside the square frame 304 by the elastic force of the first spring 309. At the same time, the sliding plate 307 drives the pressing rod 308 to abut against the inner wall of the threaded groove 9 to complete the engagement state. Then, during the continuous rotation of the first rotating rod 8, the fixed slider 301 will move repeatedly.

[0024] Example 2, please refer to Figures 1-6 Based on Embodiment 1, in this embodiment, the tapping discharge mechanism 5 includes a tapping rod 504 disposed below the filter grid 2. The tapping discharge mechanism 5 includes a fixing block 501, and a sliding rod 502 is slidably connected through the inside of the fixing block 501. A connecting plate 503 is fixedly connected to the top of the sliding rod 502. The end of the tapping rod 504 is fixedly connected to the top of the connecting plate 503. A perforated plate 505 is fixedly connected to the outer wall of the sliding rod 502, and the outer wall of the perforated plate 505 is slidably connected to the inner wall of the fixing block 501. A second spring 506 is fixedly connected to the bottom of the perforated plate 505. Several protrusions 507 are fixedly connected to the outer wall of the sliding rod 502. Furthermore, the outer wall of the fixing block 501 is fixedly connected to the inner wall of the mounting groove 6, the outer wall of the connecting plate 503 is slidably connected to the inner wall of the mounting groove 6, the end of the striking rod 504 away from the connecting plate 503 corresponds to the lower part of the filter grid 2, and the end of the second spring 506 away from the perforated plate 505 is fixedly connected to the inner wall of the fixing block 501. More specifically, as the fixed slider 301 drives the filter screen 2 to slide downwards along the inner wall of the body 1, when the filter screen 2 is displaced to the designated position, the bottom of the filter screen 2 will contact the top of the striking rod 504. Since the downward movement of the filter screen 2 is relatively rapid, both the filter screen 2 and the striking rod 504 will be subjected to a large impact force, causing the downward movement of the filter screen 2 to change speed. This will cause the impurities adhering inside the gaps of the filter screen 2 to be subjected to a large impact force from the water flow. At the same time, the filter screen 2 itself will vibrate due to the impact, and this vibration will be transmitted to the impurities adhering inside each gap. The vibration can further cause the impurities adhering inside the gaps of the filter screen 2 to be detached by force. Since the impurities mixed in the sewage have high humidity and viscosity, the vibration can cause the impurities to continue to move downwards due to inertia, thereby being subjected to a shearing force inside the gaps of the filter screen 2. This effectively throws the sticky impurities to the top of the filter screen 2, and the stronger adaptability further improves the impurity removal efficiency inside the filter screen 2. During the downward movement of the filter grid 2, the connecting plate 503 and the sliding rod 502 will move downward synchronously via the striking rod 504. Then, the sliding rod 502 will drive the perforated plate 505 to slide downward along the inside of the fixed block 501. At the same time, the second spring 506 will be compressed, which will then drive the striking rod 504 to reset. By providing damping oil inside the fixed block 501, the striking rod 504 will not move rapidly when the filter grid 2 impacts it, and the impact will not affect the downward movement of the filter grid 2. Then, the sliding rod 502 will drive several protrusions 507 to move downward simultaneously. Example 3, please refer to Figures 1-7 Based on Embodiment 2, in this embodiment, the mixing and tapping mechanism 7 includes a first tapping plate 705 disposed inside the machine body 1. The mixing and tapping mechanism 7 includes a mounting frame 701, and a connecting shaft 702 is rotatably connected to the outer wall of the mounting frame 701. A torsion spring 703 is fixedly connected to the side wall of the connecting shaft 702, and the end of the torsion spring 703 away from the connecting shaft 702 is fixedly connected to the side wall of the mounting frame 701. A fixing plate 704 is fixedly connected to the outer wall of the connecting shaft 702. The outer wall of the first tapping plate 705 is fixedly connected to the end of the fixing plate 704. A second tapping plate 706 is rotatably connected to the side wall of the first tapping plate 705. Furthermore, the outer wall of the mounting bracket 701 is fixedly connected to the inner wall of the body 1, the outer walls of several protrusions 507 correspond to the ends of the fixing plate 704, the outer wall of the first striking plate 705 is slidably connected to the inner wall of the body 1, and the outer wall of the second striking plate 706 is slidably connected to the inner wall of the body 1. More specifically, as the slide bar 502 moves several protrusions 507 downwards, the inclined end of each protrusion 507 contacts the outer wall of the fixed plate 704, pressing it and causing the fixed plate 704 to rotate the connecting shaft 702 around the mounting bracket 701. Simultaneously, the torsion spring 703 deforms. The fixed plate 704 then causes the first striking plate 705 to flip synchronously, and its outer wall slides along the inner wall of the body 1. Simultaneously, the first striking plate 705 also causes one end of the second striking plate 706 to shift. After the fixed plate 704 flips to a specified angle, the corresponding protrusion 507 passes over the fixed plate 704 and disengages. At this point, the fixed plate 704... 04 is no longer subjected to the squeezing force of the protrusion 507 and will be reset and flipped by the torque of the torsion spring 703. At this time, the first tapping plate 705 is reset and slid inside the machine body 1. By designing multiple protrusions 507, the first tapping plate 705 can continuously flip. During the process, the first tapping plate 705 can scrape off impurities from the inner wall of the machine body 1, and at the same time drive one end of the second tapping plate 706 to tap the bottom of the machine body 1. This can squeeze and tap the impurities remaining at the bottom of the machine body 1, so that the impurities are mixed with the sewage. This avoids the impurities from clumping or adsorbing into the dead corners at the bottom of the machine body 1, making it easier for the crushed solid particles to mix evenly with the sewage, and avoiding uneven treatment or secondary pollution caused by excessive concentration in dead corners.

[0025] The working principle of this invention is as follows: When discharging sewage, solid impurities need to be treated first. Sewage with solid impurities is added into the body 1 through the water inlet frame 16. At the same time, the drive reduction motor 15 drives the crushing roller 14 to rotate. As the sewage flows downward through the crushing roller 14, the crushing roller 14 can block the solid impurities in the sewage and then crush them into a specified volume. After that, the mixed impurities and sewage are discharged together by opening the drain valve 17. Since the bottom of the water inlet frame 16 is located on one side of the water wheel 11, the added sewage will impact one side of the water wheel 11 and cause the water wheel 11 to rotate. Then, through the matching meshing of the first helical gear 12 and the second helical gear 13, the water wheel 11 will drive the first rotating rod 8 to rotate continuously through the second rotating shaft 10. Since the end of the extrusion rod 308 is engaged with the inner wall of the threaded groove 9, during the rotation of the first rotating rod 8, the fixed slider 301 will slide upward along the inner wall of the groove 4 through the ring frame 303. During the process, the end of the extrusion rod 308 slides along the inner wall of the threaded groove 9, and then the first tension spring 302 will be continuously stretched. At the same time, the fixed slider 301 will drive the filter screen 2 to rise at a constant speed along the body 1. Then, when the extrusion rod 308 slides to the top of the threaded groove 9, the rotation of the first rotating rod 8 will extrude the end of the extrusion rod 308 through the threaded groove 9. The extrusion rod 308 is then subjected to the extrusion force, which drives the sliding plate 307 to slide along the inner wall of the square frame 304, compressing the first spring 309. At the same time, the sliding plate 307 will extrude the inclined surface of the end of the U-shaped block 305 during the sliding process, causing the U-shaped blocks 305 on both sides to move away from the inside of the square frame 304. Meanwhile, the second tension spring 306 is stretched. Then, the sliding plate 307 will pass over the end of the U-shaped block 305. At this time, the tension of the second tension spring 306 will drive the two U-shaped blocks 305 to reset, so that their ends slide back into the inside of the square frame 304. At the same time, the end of the U-shaped block 305 will limit the sliding plate 307, so that the sliding plate 307 will disengage the extrusion rod 308 from the engagement state with the threaded groove 9. During this process, the impact of the water flow on the filter screen 2 will cause it to move downward along the inside of the machine body 1. At the same time, the tension of the first tension spring 302 will accelerate the downward movement of the filter screen 2, causing the first tension spring 302 to press down on the sewage that has not yet been discharged below. At this time, some of the sewage below will pass through the gaps of the filter screen 2 and be squeezed back to the top of the filter screen 2. During this process, the water flow will squeeze the gaps of the filter screen 2 in the opposite direction and flow to the top, forming a strong backwash, which will thoroughly remove the impurities adhering to the gaps, prevent equipment blockage, and improve continuous processing capacity.

[0026] As the fixed slider 301 drives the filter screen 2 to slide downwards along the inner wall of the body 1, when the filter screen 2 is displaced to the designated position, the bottom of the filter screen 2 will contact the top of the striking rod 504. Since the downward movement of the filter screen 2 is relatively rapid, both the filter screen 2 and the striking rod 504 will be subjected to a large impact force, causing the downward movement of the filter screen 2 to change speed. This will cause the impurities adhering inside the gaps of the filter screen 2 to be subjected to a large impact force from the water flow. At the same time, the filter screen 2 itself will vibrate due to the impact, and this vibration will be transmitted to the impurities adhering inside each gap. The vibration can further force the impurities adhering inside the gaps of the filter screen 2 to detach. Since the impurities mixed in the sewage have high humidity and viscosity, the vibration can cause the impurities to continue to move downwards due to inertia, thereby being subjected to a shearing force inside the gaps of the filter screen 2, effectively throwing the sticky impurities to the top of the filter screen 2.

[0027] It should be noted that all the devices in this application are common devices on the market, and can be selected according to the needs of specific use. The circuit connection relationship of each device is a simple series and parallel connection circuit. There is no innovation in the circuit connection part. Those skilled in the art can easily implement it. It belongs to the prior art and will not be described in detail.

[0028] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A solid impurity pulverizing and processing device for wastewater treatment, comprising a body (1), characterized in that: The inner wall of the machine body (1) is slidably connected to a filter grid (2), and the side wall of the filter grid (2) is provided with a backwash anti-clogging mechanism (3). The machine body (1) is provided with an installation groove (6), and the inner wall of the installation groove (6) is provided with a knocking discharge mechanism (5). The inner wall of the machine body (1) is provided with a mixing and beating mechanism (7). The inner wall of the machine body (1) is fixedly installed with a crushing roller (14), and the outer wall of the machine body (1) is fixedly installed with a reduction motor (15). The output shaft of the reduction motor (15) is fixedly connected to the axis of the crushing roller (14). The top of the machine body (1) is fixedly connected with a water inlet frame (16), and the outer wall of the machine body (1) is fixedly installed with a drain valve (17). The backwash and anti-clogging mechanism (3) includes a fixed slider (301) set on the side wall of the filter grid (2), which drives the filter grid (2) to move up and down back and forth, and backwashes the inside of the filter grid (2) through water flow; The tapping discharge mechanism (5) includes a tapping rod (504) disposed below the filter grid (2). During the rapid downward movement of the filter grid (2), the filter grid (2) contacts the tapping rod (504) and taps the filter grid (2) itself, causing the impurities adsorbed inside to be thrown off. The mixing and tapping mechanism (7) includes a first tapping plate (705) disposed inside the machine body (1), which simultaneously drives the first tapping plate (705) to flip and stir inside the machine body (1) during the rapid downward movement of the filter grid (2).

2. The solid impurity pulverizing and processing device for wastewater treatment according to claim 1, characterized in that, The bottom of the fixed slider (301) is fixedly connected to a first tension spring (302), the top of the first tension spring (302) is fixedly connected to a circular frame (303), and a square frame (304) is fixedly connected above the circular frame (303). The outer walls of the circular frame (303) and the square frame (304) are slidably connected to two U-shaped blocks (305). The opposite sides of the two U-shaped blocks (305) are fixedly connected to a second tension spring (306), and the inner wall of the square frame (304) is slidably connected to... There is a sliding plate (307), and a pressing rod (308) is fixedly connected to the side wall of the sliding plate (307). The outer wall of the pressing rod (308) is slidably connected through the inside of the square frame (304). A first spring (309) is fixedly connected to one end of the sliding plate (307) away from the pressing rod (308). A through groove (310) is opened through the inside of the fixed slider (301). A sliding groove (4) is opened on the inner wall of the machine body (1), and a fixing rod (311) is fixedly connected to the inner wall of the sliding groove (4).

3. The solid impurity pulverizing and processing device for wastewater treatment according to claim 2, characterized in that, The outer wall of the fixed slider (301) is fixedly connected to the outer wall of the filter grid (2), and the outer wall of the fixed slider (301) is slidably connected to the inner wall of the slide groove (4). The end of the first tension spring (302) away from the fixed slider (301) is fixedly connected to the inner wall of the slide groove (4). The inner wall of the circular frame (303) corresponds to the inner wall of the through groove (310). The side wall of the sliding plate (307) corresponds to the outer inclined surface of the upper end of the U-shaped block (305). The end of the first spring (309) away from the sliding plate (307) is fixedly connected to the inner wall of the square frame (304). The outer wall of the end of the fixed rod (311) corresponds to the inner wall of the through groove (310). The top of the through groove (310) corresponds to the outer inclined surface of the lower end of the U-shaped block (305).

4. The solid impurity pulverizing and processing device for wastewater treatment according to claim 3, characterized in that, The inner wall of the slide groove (4) is rotatably connected to a first rotating rod (8), and the outer wall of the first rotating rod (8) inside the slide groove (4) is provided with a threaded groove (9). The end of the extrusion rod (308) away from the sliding plate (307) is engaged with the inner wall of the threaded groove (9), and the interior of the fixed slider (301) is slidably connected to the outer wall of the first rotating rod (8).

5. A solid impurity pulverizing and processing device for wastewater treatment according to claim 4, characterized in that, The tapping discharge mechanism (5) includes a fixed block (501), and a sliding rod (502) is slidably connected through the inside of the fixed block (501). A connecting plate (503) is fixedly connected to the top of the sliding rod (502). The end of the tapping rod (504) is fixedly connected to the top of the connecting plate (503). A perforated plate (505) is fixedly connected to the outer wall of the sliding rod (502), and the outer wall of the perforated plate (505) is slidably connected to the inner wall of the fixed block (501). A second spring (506) is fixedly connected to the bottom of the perforated plate (505). Several protrusions (507) are fixedly connected to the outer wall of the sliding rod (502).

6. The solid impurity pulverizing and processing device for wastewater treatment according to claim 5, characterized in that, The outer wall of the fixing block (501) is fixedly connected to the inner wall of the mounting groove (6), the outer wall of the connecting plate (503) is slidably connected to the inner wall of the mounting groove (6), the end of the striking rod (504) away from the connecting plate (503) corresponds to the lower part of the filter grid (2), and the end of the second spring (506) away from the perforated plate (505) is fixedly connected to the inner wall of the fixing block (501).

7. A solid impurity pulverizing and processing device for wastewater treatment according to claim 6, characterized in that, The mixing and tapping mechanism (7) includes a mounting frame (701), and a connecting shaft (702) is rotatably connected to the outer wall of the mounting frame (701). A torsion spring (703) is fixedly connected to the side wall of the connecting shaft (702), and one end of the torsion spring (703) away from the connecting shaft (702) is fixedly connected to the side wall of the mounting frame (701). A fixing plate (704) is fixedly connected to the outer wall of the connecting shaft (702). The outer wall of the first tapping plate (705) is fixedly connected to the end of the fixing plate (704), and a second tapping plate (706) is rotatably connected to the side wall of the first tapping plate (705).

8. A solid impurity pulverizing and processing device for wastewater treatment according to claim 7, characterized in that, The outer wall of the mounting bracket (701) is fixedly connected to the inner wall of the body (1), the outer walls of the plurality of protrusions (507) correspond to the ends of the fixing plate (704), the outer wall of the first striking plate (705) is slidably connected to the inner wall of the body (1), and the outer wall of the second striking plate (706) is slidably connected to the inner wall of the body (1).

9. A solid impurity pulverizing and processing device for wastewater treatment according to claim 8, characterized in that, The machine body (1) is rotatably connected to a second rotating shaft (10), and a water wheel (11) is fixedly installed on the outer wall of the second rotating shaft (10). A first helical gear (12) is fixedly connected to the end of the second rotating shaft (10), and a second helical gear (13) is fixedly connected to the top of the first rotating rod (8). The inner wall of the teeth of the first helical gear (12) meshes with the inner wall of the teeth of the second helical gear (13).

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