Automatic filtering system for metallurgical wastewater treatment

Abstract

The invention relates to the technical field of metallurgical wastewater treatment, in particular to an automatic filtering system for metallurgical wastewater treatment, which comprises a shell and a filter bag, the filter bag is fixedly mounted in the shell, a water inlet pipeline and a water outlet pipeline are respectively fixedly mounted on the shell, and the water inlet pipeline and the water outlet pipeline are respectively positioned on two sides of the filter bag; the collecting assembly is arranged on the water inlet pipeline, when water flow is small or large cakes or crystals do not exist in the water inlet pipeline, and the filter bag cannot be rubbed or scraped, the collecting assembly does not work, and then liquid flow in the water inlet pipeline cannot be affected; when the filter bag is used for filtering the metallurgical wastewater and larger cakes or crystals exist, the collecting component can discharge the cakes or crystals out of the water inlet pipeline and collect the cakes or crystals, so that the filter bag is prevented from being scratched by the cakes or crystals, the service life of the filter bag is prolonged, and the filtering quality of the metallurgical wastewater is ensured.

Description

Technical Field

[0001] This invention relates to the field of metallurgical wastewater treatment technology, specifically to an automatic filtration system for metallurgical wastewater treatment. Background Technology

[0002] Automatic filtration systems for metallurgical wastewater treatment are highly efficient devices that can automatically intercept and filter suspended particles, oils, and other impurities in metallurgical wastewater, thus achieving preliminary purification of the water. They have advantages such as high automation, high filtration accuracy, and fast treatment efficiency, effectively reducing manual operation costs and improving the quality and efficiency of metallurgical wastewater treatment. They are widely used in wastewater treatment in the metallurgical industry.

[0003] In the process of metallurgical wastewater treatment, when the impurities in the wastewater are mainly non-sticky solid particles and crystals, if the ambient temperature suddenly drops, the solubility of some substances inside the pipe will decrease accordingly. The substances originally dissolved in the water will become supersaturated and crystallize out. The lumps or crystals have irregular shapes and a certain degree of hardness. When they come into contact with the filter bag with the liquid flow, their sharp edges are like tiny knives, which can easily cause friction or scratches on the surface of the filter bag. If these lumps or crystals have high hardness, such as some metal salt crystals, they are more likely to damage the filter bag material when they come into contact with the filter bag under high pressure, thereby affecting the filtration effect.

[0004] To address the aforementioned issues, existing technologies offer several solutions. For example, patent application number CN202121655519.5 provides a bag filter for membrane separation safety. This utility model's filter accurately ensures filtration precision and allows for quick filter bag replacement. It is easy to operate and prevents material impurities from entering the material circulation system, prevents large particles from damaging the pump impeller, and prevents small particles or fibrous debris from entering the membrane channels, scratching the membrane filter layer, or even clogging the membrane channels. While this solution enables quick filter bag replacement and improves worker efficiency, if the filter bag breaks during operation, it will instantly lose its filtration capacity, leading to unfiltered liquid flowing through the filter bag and contaminating the filtered liquid. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic filtration system for metallurgical wastewater treatment, which solves the problem that when clumps or crystals come into contact with the filter bag as the liquid flows, they are prone to friction or scratching the filter bag surface. If these clumps or crystals have high hardness, they are more likely to damage the filter bag material when they come into contact with the filter bag under high pressure, thereby affecting the filtration effect.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An automatic filtration system for treating metallurgical wastewater includes a housing and a filter bag. The filter bag is fixedly installed inside the housing. An inlet pipe and an outlet pipe are also fixedly installed on the housing, located on opposite sides of the filter bag. The inlet pipe has a 90° bend at its inner end. A mounting base is fixedly connected to the inlet pipe. A door is hinged at the bend of the inlet pipe, located on the outer side of the bend. The inner side of the door has an arc surface consistent with the inner wall of the inlet pipe. A collection assembly with a barrier bar is provided on the mounting base. The collection assembly controls the door to open when the barrier bar is impacted by a solid, allowing the solid to be discharged from the inlet pipe and collected. A motor is fixedly connected to the mounting base, with its output end connected to the door. The motor controls the door to close.

[0008] As is easily understood, this design involves installing a collection component on the inlet pipe. When the metallurgical wastewater to be filtered contains clumps or crystals, these clumps or crystals will enter the inlet pipe along with the liquid. If the water flow velocity is low, larger clumps or crystals will concentrate at the bottom of the inlet pipe and move without significantly impacting the filter bag. In this case, the clumps or crystals will not contact the barrier. However, if the water flow velocity is high, the clumps or crystals will concentrate in the middle of the inlet pipe and flow rapidly with the liquid. When the clumps or crystals reach the corner of the inlet pipe, they will contact the barrier and remain on it. At this point, the collection component controls the opening of the chamber door, and the clumps or crystals will flow down the inner wall of the chamber door. The water flows into the collection chamber. Therefore, this design ensures that when the water flow is low or there are no large clumps or crystals inside the inlet pipe, and the filter bag is not at risk of being rubbed or scratched, the collection component will not operate, thus not affecting the liquid flow inside the inlet pipe and ensuring the filtration efficiency of the automatic filtration system for metallurgical wastewater treatment. However, when the water flow rate is high and there are large clumps or crystals inside the inlet pipe, the collection component will discharge the clumps or crystals from the inlet pipe and collect them, preventing the filter bag from being scratched by the clumps or crystals, and thus preventing the filter bag from breaking and contaminating the filtered liquid. Therefore, this design improves the service life of the filter bag and ensures the filtration quality of the metallurgical wastewater.

[0009] Preferably, the collection assembly includes a collection chamber located inside the mounting base. The bottom of the collection chamber has an arc surface. A rotating rod is hinged inside the chamber door. A blocking rod is fixedly connected to the rotating rod. A torsion spring is provided between the rotating rod and the chamber door. One end of the blocking rod inside the water inlet pipe is inclined. Rotating blocks are fixedly connected to both ends of the rotating rod. Sliding blocks are also slidably connected to both sides of the chamber door. A spring is provided between one end of the sliding block and the chamber door. The rotating block contacts one side of the sliding block. Locking holes are provided on both sides of the mounting base. One end of the sliding block extends into the locking hole.

[0010] As is easily understood, this design involves sliding a block 1 on the door. When the agglomerates collide with the barrier bar located at the corner, the weight of the agglomerates combined with the pressure of the liquid impacting them causes the barrier bar to rotate. This causes the rotating blocks on both sides of the rotating bar to rotate away from the sliding block 1. As a result, the sliding block 1 loses its support and can no longer lock the door. Consequently, the water flow can immediately open the door, allowing the agglomerates or crystals to flow into the collection chamber along the inner wall of the door. Therefore, this design allows the barrier bar to immediately release its lock on the door after being impacted by agglomerates or crystals, enabling the door to be opened by the water flow immediately. This improves the sensitivity of the collection component, allowing it to expel the agglomerates or crystals from the inlet pipe as quickly as possible.

[0011] Preferably, two sliding blocks are slidably connected to both sides of the door, and a spring is provided between the two sliding blocks and the door. A notch is provided on the two sliding blocks, and the rotating block contacts the inner wall of the notch. Sliding grooves are provided on both sides of the mounting base, and the two sliding blocks extend into the sliding grooves. An inclined surface is provided at the end of the sliding groove away from the door.

[0012] As is easily understood, this design involves sliding a second block on the door, causing the agglomerates to collide with a barrier bar located at the corner. The barrier bar drives a rotating rod to rotate, causing the rotating blocks on both sides of the rotating rod to rotate away from the first sliding block. After the barrier bar has rotated a certain angle, the rotating blocks contact the second sliding block, preventing the barrier bar from rotating further. Only when the door is fully opened can the second sliding block contact the inclined surface. At this point, the inclined surface presses against the second sliding block, causing it to move. Once the notch on the second sliding block reaches the position of the rotating block, the barrier bar can continue to rotate, allowing the agglomerates or crystals to flow into the collection chamber. Therefore, this design ensures that the barrier bar can only rotate fully after the door is fully open. This prevents the barrier bar from rotating immediately after the agglomerates or crystals collide with it, which could lead to larger agglomerates or crystals continuing to flow along the inlet pipe before the door is fully open, as they cannot pass through the door and have lost the support of the barrier bar. This ensures the reliability of the collection assembly and thus improves the service life of the filter bag.

[0013] Preferably, the mounting base has a control rod 1 and a control rod 2 rotatably connected inside, the control rod 1 and control rod 2 are coaxially arranged, the motor output end is fixedly connected to the control rod 1, one end of the control rod 2 is hinged to the control rod 3, the control rod 3 is hinged to the bin door, the line connecting the center of the control rod 3 and the control rod 2 and the hinge point of the control rod 3 and the bin door is horizontal, the control rod 1 has a limit groove 1, the limit groove 1 has a limit block slidably connected inside the limit groove 1, the limit block and the inner wall of the limit groove 1 are provided with a spring 3, the control rod 2 has a limit groove 2, one end of the limit block extends into the limit groove 2, the end of the limit block located in the limit groove is provided with an inclined surface, the collection bin has a crushing rod rotatably connected inside, the motor output end is fixedly connected to the motor output end, the mounting base has a gear 2 rotatably connected, the gear 1 and gear 2 mesh, the gear 2 is fixedly connected to the crushing rod, the inner wall of the mounting base is provided with a contact switch, the contact switch is electrically connected to the motor.

[0014] As is easily understood, this design incorporates a motor mounted on the mounting base and a crushing rod inside the collection chamber. When lumps or crystals enter the collection chamber, the crushing rod rotates, crushing the lumps or crystals. The collection chamber also contains control levers one and two. When the chamber door is fully open, it contacts a switch on the inner wall of the mounting base, starting the motor and commencing the crushing of lumps or crystals. Initially, the motor's rotation does not affect the chamber door. After a period of time, the motor rotates in the opposite direction. At this point, the motor can control the rotation of control lever one... The rotation of control levers two and three enables the motor to drive the chamber door to close against the water pressure. When the chamber door is fully closed, the center of control lever three is collinear with the center of control lever two and the line connecting control lever three to the hinge point of the chamber door. Therefore, the chamber door is supported by control lever three, preventing the chamber door from vibrating due to the impact of the water flow when closing. This avoids the vibration affecting the flow of liquid inside the inlet pipe and prevents the vibration from accelerating the wear of the collection components. Therefore, this design not only ensures the filtration efficiency of the automatic filtration system for metallurgical wastewater treatment but also improves the service life of the collection components.

[0015] Preferably, the bottom of the collection chamber has a channel that connects the collection chamber to the water inlet pipe. The water inlet pipe has a protrusion located at the outlet of the channel.

[0016] As is easily understood, this design involves setting a channel at the bottom of the collection chamber and connecting the channel to the inlet pipe. When the clumps or crystals inside the collection chamber are crushed to a certain extent, they will flow into the channel and return to the inlet pipe. Therefore, this design saves the staff from cleaning the collection chamber after it has collected a certain amount of material, and also saves the staff from processing the clumps or crystals after they are recovered. Thus, this design reduces the workload of the staff and reduces the maintenance cost of the automatic filtration system for metallurgical wastewater treatment.

[0017] Preferably, an isolation rod one is fixedly connected inside the mounting base, and an isolation rod two is hinged to the isolation rod one. A torsion spring is provided at the hinge point between the isolation rod two and the isolation rod one, and the isolation rod one restricts the isolation rod two from rotating toward the position of the warehouse door.

[0018] As is easily understood, when the chamber door opens to a certain extent, clumps or crystals will fall into the collection chamber. At this time, the motor will control the crushing rod to crush the clumps or crystals. Because the clumps or crystals collide with the crushing rod and the inner wall of the collection chamber, they may bounce inside the collection chamber. If the chamber door is open at this time, the clumps or crystals may bounce back into the water inlet pipe, which may cause the clumps or crystals to scratch the filter bag. This design uses two isolation rods inside the mounting base. When the clumps or crystals fall into the collection chamber, they will first collide with the second isolation rod. Due to the restriction of the first isolation rod, the second isolation rod can only move and rotate in one direction. Therefore, the clumps or crystals can only enter the crushing area of ​​the collection chamber from one side, but cannot return to the side where the chamber door is. This prevents the clumps or crystals from bouncing back into the water inlet pipe due to splashing, thus improving the collection effect of the collection component.

[0019] Preferably, the crushing rod is installed in a staggered manner with isolation rod one and isolation rod two, and isolation rod three is fixedly connected inside the collection chamber. Isolation rod three is installed in a staggered manner with the crushing rod, and the crushing rod extends outward. The crushing rod is intersected with isolation rod two and isolation rod three.

[0020] As is easily understood, this design involves installing the crushing rod in a staggered manner with isolation rod one and isolation rod two, and with the crushing rod extending outwards. When clumps or crystals compress isolation rod two, causing the isolation rod to rotate, the crushing rod will pass through isolation rod two during rotation, pressing the clumps or crystals downwards. This initially crushes the clumps or crystals before conveying them deeper into the collection chamber. This further prevents the clumps or crystals from bouncing after being crushed, and also prevents clumps or crystals of various shapes from getting stuck on isolation rod two, thus improving the crushing efficiency of the crushing rod.

[0021] Preferably, a baffle plate is slidably connected to the water inlet pipe. The side of the baffle plate near the inner wall of the water inlet pipe has an arc surface consistent with the inner wall of the water inlet pipe. A connecting rod is fixedly connected to one side of the baffle plate, and a connecting rod is hinged to one end of the connecting rod. One end of the connecting rod is hinged to the compartment door.

[0022] As is easily understood, this design involves installing a baffle plate in the inlet pipe. During the opening of the chamber door, the second connecting rod hinged to one side of the door will drive the first connecting rod to slide. The first connecting rod, in turn, will drive the baffle plate to slide towards the chamber door. Therefore, this design allows the baffle plate to gradually rise through sliding during the opening of the chamber door, thereby blocking the clumps or crystals on the barrier rod. This further prevents the clumps or crystals from falling off the barrier rod and re-entering the inlet pipe during the opening of the chamber door, which could then scratch the filter bag. Thus, this design improves the reliability of the collection assembly.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. This invention, by installing a collection component on the inlet pipe, allows the collection component to remain inactive when the water flow is low or when there are no large clumps or crystals inside the inlet pipe, thus avoiding any risk of friction or scratching of the filter bag. This prevents disruption of the liquid flow inside the inlet pipe. However, when the water flow rate is high and there are large clumps or crystals, the collection component will discharge and collect the clumps or crystals from the inlet pipe, preventing the filter bag from being scratched by the clumps or crystals. Therefore, this design improves the service life of the filter bag and ensures the filtration quality of metallurgical wastewater.

[0025] 2. This invention utilizes a sliding block installed on the tank door. This design allows the barrier bar to immediately release the lock on the tank door after being impacted by clumps or crystals, thereby enabling the tank door to be opened by the water flow immediately. This improves the sensitivity of the collection component, allowing it to discharge clumps or crystals from the inlet pipe immediately, preventing the filter bag from being scratched by clumps or crystals, and extending the service life of the automatic filtration system for metallurgical wastewater treatment.

[0026] 3. This invention features a sliding block 2 installed on the door. This design ensures that the barrier bar can only rotate fully after the door is fully opened. This prevents the barrier bar from rotating prematurely after impacting clumps or crystals, which could cause larger clumps or crystals to continue flowing along the inlet pipe with the liquid before the door is fully open. This ensures the reliability of the collection assembly and improves the service life of the filter bag. Attached Figure Description

[0027] Figure 1This is a schematic diagram of the automatic filtration system for metallurgical wastewater treatment according to the present invention.

[0028] Figure 2 for Figure 1 A cross-sectional axial view of the structure;

[0029] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0030] Figure 4 for Figure 1 Sectional view at point BB;

[0031] Figure 5 for Figure 4 Larger image at point C;

[0032] Figure 6 for Figure 1 Sectional view at point DD;

[0033] Figure 7 This is a schematic diagram of the structure of the storage door of the present invention;

[0034] Figure 8 for Figure 7 Sectional view at EE;

[0035] Figure 9 for Figure 8 Enlarged view of point F in the middle.

[0036] In the diagram: 1. Outer shell; 2. Filter bag; 3. Inlet pipe; 4. Outlet pipe; 5. Mounting base; 6. Chamber door; 7. Barrier bar; 8. Collection chamber; 9. Rotating rod; 10. Rotating block; 11. Sliding block one; 12. Spring one; 13. Locking hole; 14. Sliding block two; 15. Notch; 16. Sliding groove; 17. Motor; 18. Control rod one; 19. Control rod two; 20. Control rod three; 21. Limiting groove one; 22. Limiting block; 23. Spring two; 24. Limiting groove two; 25. Inclined surface; 26. Crushing rod; 27. Gear one; 28. Gear two; 29. ​​Channel; 30. Isolation rod one; 31. Isolation rod two; 32. Isolation rod three; 33. Baffle plate; 34. Contact switch; 35. Connecting rod one; 36. Connecting rod two; 37. Spring three; 38. Protrusion. Detailed Implementation

[0037] This invention provides an automatic filtration system for treating metallurgical wastewater, the technical solution of which is as follows:

[0038] Please see Figures 1 to 9An automatic filtration system for treating metallurgical wastewater includes a housing 1 and a filter bag 2. The filter bag 2 is fixedly installed inside the housing 1. An inlet pipe 3 and an outlet pipe 4 are also fixedly installed on the housing 1, located on opposite sides of the filter bag 2. The inlet pipe 3 has a 90° bend at one end inside the housing 1. A mounting base 5 is fixedly connected to the inlet pipe 3. A door 6 is hinged at the bend of the inlet pipe 3, located on the outside of the bend. The inner side of the door 6 has an arc surface consistent with the inner wall of the inlet pipe 3. A collection assembly with a barrier bar 7 is provided on the mounting base 5. The collection assembly controls the door 6 to open when the barrier bar 7 is impacted by a solid object. A motor 17 is fixedly connected to the mounting base 5. The output end of motor 17 is connected to the door 6. Motor 17 controls the door 6 to close, and solids are discharged from the water inlet pipe 3 and collected. The collection assembly includes a collection chamber 8, which is located inside the mounting base 5. The bottom of the collection chamber 8 has an arc surface. A rotating rod 9 is hinged inside the door 6. A blocking rod 7 is fixedly connected to the rotating rod 9. A torsion spring is provided between the rotating rod 9 and the door 6. One end of the blocking rod 7 inside the water inlet pipe 3 is inclined. Rotating blocks 10 are fixedly connected to both ends of the rotating rod 9. Sliding blocks 11 are also slidably connected to both sides of the door 6. A spring 12 is provided between one end of the sliding block 11 and the door 6. The rotating block 10 contacts one side of the sliding block 11. Locking holes 13 are provided on both sides of the mounting base 5. One end of the sliding block 11 extends into the locking hole 13.

[0039] For further details, please refer to Figures 1 to 9The door 6 has two sliding blocks 14 slidably connected to both sides. A spring 23 is provided between the sliding block 14 and the door 6. The sliding block 14 has a notch 15. The rotating block 14 contacts the inner wall of the notch 15. The mounting base 5 has sliding grooves 16 on both sides. The sliding block 14 extends into the sliding groove 16. The end of the sliding groove 16 away from the door has an inclined surface. The bottom of the collection chamber 8 has a channel 29 that connects the collection chamber 8 to the water inlet pipe 3. The water inlet pipe 3 has a protrusion 38 located at the outlet of the channel 29. The mounting base 5 has a motor 17 fixedly connected to it. The mounting base 5 has a control rod 18 and a control rod 29 rotatably connected inside it. The control rod 18 and the control rod 29 are coaxially arranged. The output end of the motor 17 is fixedly connected to the control rod 18. One end of the control rod 29 is hinged to a control rod 30. Rod 3 20 is hinged to the door 6. The line connecting the center of control rod 3 20 and control rod 2 19 and the hinge point of control rod 3 20 and door 6 is horizontal. A limit groove 1 21 is opened on control rod 1 18. A limit block 22 is slidably connected inside the limit groove 1 21. A spring 3 37 is provided between the limit block 22 and the inner wall of the limit groove 1 21. A limit groove 24 is opened on control rod 2 19. One end of the limit block 22 extends into the limit groove 24. An inclined surface 25 is provided at the end of the limit block 22 located inside the limit groove. A crushing rod 26 is rotatably connected inside the collection bin 8. A gear 1 27 is fixedly connected to the output end of motor 17. A gear 2 28 is rotatably connected to mounting base 5. Gear 1 27 and gear 2 28 mesh. Gear 2 28 is fixedly connected to crushing rod 26. A contact switch 34 is provided on the inner wall of mounting base 5. The contact switch 34 is electrically connected to motor 17.

[0040] Please see Figures 1 to 9 An isolation rod 30 is fixedly connected inside the mounting base 5. An isolation rod 31 is hinged to the isolation rod 30. A torsion spring is provided at the hinge point between the isolation rod 31 and the isolation rod 30. The isolation rod 30 restricts the isolation rod 30 from rotating toward the position of the door 6. The crushing rod 26 is installed in a staggered manner with the isolation rods 30 and 31. An isolation rod 32 is fixedly connected inside the collection chamber 8. The isolation rod 32 is installed in a staggered manner with the crushing rod 26, and the crushing rod 26 extends outward. The crushing rod 26 is intersected with the isolation rods 31 and 32. A baffle plate 33 is slidably connected to the water inlet pipe 3. The side of the baffle plate 33 near the inner wall of the water inlet pipe 3 has an arc surface consistent with the inner wall of the water inlet pipe 3. A connecting rod 35 is fixedly connected to one side of the baffle plate 33, and a connecting rod 36 is hinged to the end of the connecting rod 35. One end of the connecting rod 36 is hinged to the door 6.

[0041] When clumps or crystals are present in the inlet pipe 3 and move rapidly with the liquid, they will concentrate in the middle of the inlet pipe 3 due to the high-speed flow of the liquid. When the clumps reach the corner of the inlet pipe 3, they will collide with the blocking rod 7 located at the corner. At this time, due to the weight of the clumps and the pressure of the liquid impacting the clumps, the blocking rod 7 will drive the rotating rod 9 to rotate. At this time, the rotating blocks 10 on both sides of the rotating rod 9 will rotate away from the sliding block 11 and contact the sliding block 24. At this time, the sliding block 11 loses the support of the rotating block 10, the motor 17 starts, and the output of the motor 17 drives the control rod 18 to rotate. The limit block 22 on the control rod 18 contacts the limit block 24. The control lever 19 moves away from the inner wall of the limiting groove 24. At this time, the door 6 is opened by the pressure of the water flow. The sliding block 11 moves away from the locking hole 13, and the sliding block 14 slides along the sliding groove 16. After moving a distance, the sliding block 14 moves away from the sliding groove 16 and is squeezed by the inner wall of the mounting base 5. At this time, the notch 15 on the sliding block 14 reaches the position of the rotating block 10. At this time, the blocking rod 7 continues to rotate, and the rotating block 10 rotates to the notch 15. During the opening of the door 6, the connecting rod 36 hinged on one side of the door 6 will drive the connecting rod 35 to slide. The connecting rod 35 will then drive the baffle plate 33 to slide towards the door 6. At this time, when the door 6 is fully opened and the blocking rod 7 is fully opened, the door 6 opens. After complete rotation, the agglomerates lose the support of the barrier bar 7 and, impacted by the water flow, flow along the inner wall of the chamber door 6 into the collection chamber 8. At this point, the agglomerates come into contact with the second isolation bar 31. The second isolation bar 31 rotates around the first isolation bar 30 due to the impact of the agglomerates, causing the agglomerates to continue moving. At this point, the agglomerates come into contact with the crushing bar 26 and the third isolation bar 32. During the rotation of the motor 17, the crushing bar 26 is driven to rotate through the first gear 27 and the second gear 28. At this point, the agglomerates are crushed by the crushing bar 26 and the third isolation bar 32. When the agglomerates are crushed to a certain extent, they will flow back into the inlet pipe 3 through the channel 29 at the bottom of the collection chamber 8 with the water flow. After the agglomerates on the barrier bar 7 have completely fallen into the collection chamber 8, the rotating bar 9 and the barrier bar 7 are subjected to torsion. The spring resets the spring, and the rotating blocks 10 on both sides of the rotating rod 9 leave the notch 15 on the sliding block 2 14 and contact the sliding block 1 11. After a period of time, the motor 17 stops and rotates in the opposite direction. At this time, the motor 17 drives the control rod 1 18 to rotate, and the limit block 22 on the control rod 1 18 contacts the inner wall of the upper limit groove 24 of the control rod 2 19. At this time, the control rod 1 18 drives the control rod 2 19 to rotate, and then the control rod 2 19 drives the control rod 3 20 to rotate. At this time, the control rod 3 20 pushes the compartment door 6 to close. When the compartment door 6 is completely closed, the sliding block 1 11 inside the compartment door 6 returns to the locking hole 13, and the sliding block 2 14 also returns to the sliding groove 16. The baffle plate 33 is also completely reset. At this time, the motor 17 stops rotating.

[0042] The specific embodiment of the present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the embodiments described above. For those skilled in the art, various changes, modifications, substitutions, and variations made to these embodiments without departing from the principles and ideas of the present invention should still fall within the protection scope of the present invention.

Claims

1. An automatic filtration system for treating metallurgical wastewater, comprising a housing (1) and a filter bag (2), wherein the filter bag (2) is fixedly installed inside the housing (1), and an inlet pipe (3) and an outlet pipe (4) are respectively fixedly installed on the housing (1), wherein the inlet pipe (3) and the outlet pipe (4) are respectively located on both sides of the filter bag (2), characterized in that, The water inlet pipe (3) has a bend at one end inside the outer shell (1), the bend angle is 90°, and a mounting base (5) is fixedly connected to the water inlet pipe (3). A door (6) is hinged at the bend of the water inlet pipe (3), and the door (6) is located outside the bend. The side of the door (6) inside the water inlet pipe (3) has an arc surface consistent with the inner wall of the water inlet pipe (3). A collection component with a barrier bar (7) is provided on the mounting base (5). The collection component is used to control the door (6) to open when the barrier bar (7) is impacted by a solid. A motor (17) is fixedly connected to the mounting base (5). The output end of the motor (17) is connected to the door (6), and the motor (17) controls the door (6) to close.

2. The automatic filtration system for metallurgical wastewater treatment according to claim 1, characterized in that, The collection assembly includes a collection chamber (8) located inside the mounting base (5). The bottom of the collection chamber (8) is provided with an arc surface. A rotating rod (9) is hinged inside the chamber door (6). A blocking rod (7) is fixedly connected to the rotating rod (9). A torsion spring is provided between the rotating rod (9) and the chamber door (6). One end of the blocking rod (7) located inside the water inlet pipe (3) is inclined. Rotating blocks (10) are fixedly connected to both ends of the rotating rod (9). Sliding blocks (11) are also slidably connected to both sides of the chamber door (6). A spring (12) is provided between one end of the sliding block (11) and the chamber door (6). The rotating block (10) contacts one side of the sliding block (11). Locking holes (13) are provided on both sides of the mounting base (5). One end of the sliding block (11) extends into the locking hole (13).

3. An automatic filtration system for metallurgical wastewater treatment according to claim 2, characterized in that, The two sides of the door (6) are slidably connected to the sliding block two (14), and the two sliding block two (14) and the door (6) are provided with the spring two (23). The sliding block two (14) has a notch (15) and the rotating block (14) contacts the inner wall of the notch (15). The two sides of the mounting base (5) are provided with sliding grooves (16), and the sliding block two (14) extends into the sliding groove (16). The end of the sliding groove (16) away from the door is provided with an inclined surface.

4. An automatic filtration system for metallurgical wastewater treatment according to claim 2, characterized in that, The mounting base (5) is rotatably connected to control rod one (18) and control rod two (19). Control rod one (18) and control rod two (19) are coaxially arranged. The output end of the motor (17) is fixedly connected to control rod one (18). Control rod three (20) is hinged to one end of control rod two (19). Control rod three (20) is hinged to the door (6). The line connecting the center of control rod three (20) and control rod two (19) and the hinge point of control rod three (20) and door (6) is horizontal. A limit groove one (21) is opened on control rod one (18). A limit block (22) is slidably connected inside the limit groove one (21). A space is provided between the limit block (22) and the inner wall of the limit groove one (21). There is a spring three (37), a limit groove two (24) is opened on the control rod two (19), one end of the limit block (22) extends into the limit groove two (24), the end of the limit block (22) located inside the limit groove is provided with an inclined surface (25), the collection bin (8) is rotatably connected to the crushing rod (26), the output end of the motor (17) is fixedly connected to the gear one (27), the mounting base (5) is rotatably connected to the gear two (28), the gear one (27) meshes with the gear two (28), the gear two (28) is fixedly connected to the crushing rod (26), the inner wall of the mounting base (5) is provided with a contact switch (34), and the contact switch (34) is electrically connected to the motor (17).

5. An automatic filtration system for metallurgical wastewater treatment according to claim 4, characterized in that, The bottom of the collection chamber (8) is provided with a channel (29), which connects the collection chamber (8) to the water inlet pipe (3). The water inlet pipe (3) is provided with a protrusion (38), which is located at the outlet of the channel (29).

6. An automatic filtration system for metallurgical wastewater treatment according to claim 5, characterized in that, An isolation rod 1 (30) is fixedly connected inside the mounting base (5). An isolation rod 2 (31) is hinged on the isolation rod 1 (30). A torsion spring is provided at the hinge point between the isolation rod 2 (31) and the isolation rod 1 (30). The isolation rod 1 (30) restricts the isolation rod 2 (30) from rotating toward the location of the warehouse door (6).

7. An automatic filtration system for metallurgical wastewater treatment according to claim 6, characterized in that, The crushing rod (26) is installed in a staggered manner with the first isolation rod (30) and the second isolation rod (31). The collection chamber (8) is fixedly connected with the third isolation rod (32). The third isolation rod (32) is installed in a staggered manner with the crushing rod (26), and the crushing rod (26) extends outward. The crushing rod (26) is intersected with the second isolation rod (31) and the third isolation rod (32).

8. An automatic filtration system for metallurgical wastewater treatment according to claim 7, characterized in that, A baffle plate (33) is slidably connected to the water inlet pipe (3). The baffle plate (33) has an arc that is consistent with the inner wall of the water inlet pipe (3) on one side. A connecting rod (35) is fixedly connected to one side of the baffle plate (33), and a connecting rod (36) is hinged to one end of the connecting rod (35). One end of the connecting rod (36) is hinged to the door (6).

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