Filtering device for industrial wastewater

Abstract

The utility model discloses a filtering device for industrial wastewater, and relates to the technical field of industrial wastewater treatment. The device comprises a filter tank, a detachable filter screen which is arranged between the inner side walls of the filter tank and is close to the top, a sewage collecting tank which is arranged at the inner bottom end of the filter tank, and a deslagging mechanism which is arranged at the inner bottom end of the sewage collecting tank. According to the utility model, the detachable filter screen is subjected to backwashing treatment through the backwashing assembly, so that the filter effect is prevented from being influenced by blocking of meshes by dregs when industrial wastewater is filtered and treated by the detachable filter screen from bottom to top; meanwhile, through the moving mechanism, the flushing spray pipe can be horizontally driven in a reciprocating manner to move above the detachable filter screen to carry out comprehensive back-flushing cleaning operation, and a series of complex operations such as disassembly, replacement and maintenance of the filter screen by shutdown are not needed, so that the aim of continuously, efficiently, comprehensively and effectively flushing and cleaning the filter screen for the filter device is fulfilled; the working efficiency of the filtering device is greatly improved, the maintenance cost of the device is reduced, and the economic benefit is improved.

Description

Technical Field

[0001] This utility model belongs to the field of industrial wastewater treatment technology, and in particular relates to a filtration device for industrial wastewater. Background Technology

[0002] Industrial wastewater is an unavoidable byproduct of industrial production activities. Direct discharge of industrial wastewater poses a serious threat to the ecological environment and human health. Moreover, with the acceleration of industrialization, the discharge of industrial wastewater is increasing year by year. In order to reduce the threat to the ecological environment and human health caused by direct discharge of industrial wastewater, and at the same time improve the utilization rate of water resources, technicians have developed a filtration device for industrial wastewater to filter and purify it.

[0003] However, existing industrial wastewater filtration devices are prone to clogging of the filter components during prolonged use, affecting filtration efficiency. Cleaning by vibration is not thorough, and disassembling and replacing the filter components is cumbersome, impacting the device's operating efficiency. There are technical problems that prevent the device from quickly, comprehensively, and effectively cleaning the filter components without shutting down the machine to ensure filtration efficiency and effectiveness. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a filtration device for industrial wastewater, which can effectively solve the problems of the existing technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a filtration device for industrial wastewater, including a filtration tank, a detachable filter screen disposed between the inner side walls of the filtration tank near the top, and a sludge collection tank disposed at the bottom of the filtration tank, and further including:

[0007] The slag discharge mechanism is located at the bottom of the sludge collection tank.

[0008] A flushing nozzle is installed above a removable filter screen inside the filter tank, and a backwash nozzle is provided at the bottom end of the flushing nozzle.

[0009] A water tank is located at the middle of the bottom front end of the filter pool. A backwash pump is installed at the top of the water tank, and a water delivery hose is installed at the output end of the backwash pump.

[0010] The moving mechanism is located between the top of the outside of the flushing nozzle and both sides of the top of the filter tank.

[0011] Furthermore, the backwash nozzles are arranged at equal intervals at the bottom end of the flushing nozzle, and one end of the water delivery hose is fixedly connected to and communicates with the top end of the flushing nozzle.

[0012] Furthermore, the moving mechanism includes a positioning seat, a guide groove, a moving box, a servo motor, moving wheels, bottom limiting wheels, and side limiting wheels. The positioning seat is fixedly connected to the position between the top two sides of the filter tank near the rear end. The moving box is provided on the outer side of the positioning seat. The top, bottom, and rear end of the positioning seat are provided with guide grooves. The servo motor is located at the top of the rear end of the moving box. Moving wheels are provided at the top between the two ends inside the moving box. The moving wheels are connected to the output end of the servo motor through shafts. Bottom limiting wheels are provided at the bottom between the two ends inside the moving box. Side limiting wheels are provided at the middle position of the rear end of the moving box. Safety protection structures are provided between the bottom of the two sides of the moving box and the top of the two sides inside the filter tank.

[0013] Furthermore, the front end of the movable box is fixedly connected to the top of the outer side of the flushing nozzle, and the movable wheel, bottom limiting wheel and side limiting wheel are correspondingly embedded in the inside of the guide groove, and the movable wheel, bottom limiting wheel and side limiting wheel can roll inside the guide groove.

[0014] Furthermore, an inlet is provided on one side of the filter tank near the bottom, an overflow outlet is provided on the other side of the filter tank near the top, a slag discharge outlet is provided at the middle of the bottom of the other side of the filter tank, and a sealing slot is provided on the inner side wall of the filter tank near the top, and the outer side of the removable filter screen is inserted into the interior of the sealing slot.

[0015] Furthermore, the slag discharge mechanism includes a drive motor and a spiral discharge shaft. The drive motor is located at the middle position of the bottom end on one side of the filter tank, and the spiral discharge shaft is located at the middle position of the bottom end inside the sludge collection tank. One side of the spiral discharge shaft passes through the inside of the filter tank through a sealing bushing and is connected to the output end of the drive motor.

[0016] Furthermore, the safety protection structure includes guide rods, partitions, and pull ropes. The guide rods are fixedly connected to the two ends at the top between the two sides inside the filter tank. A partition is provided between the outer sides of the guide rods, and the partition can move between the outer sides of the guide rods. The two sides of the movable box are fixedly connected to the partitions on the corresponding sides. Pull ropes are provided between the two ends of the partitions and the two sides inside the filter tank.

[0017] This utility model has the following beneficial effects:

[0018] This invention utilizes a backwashing assembly to backwash a detachable filter screen, preventing debris from clogging the mesh and affecting filtration efficiency when filtering industrial wastewater from bottom to top. Simultaneously, a moving mechanism horizontally reciprocates the flushing nozzle above the detachable filter screen for comprehensive backwashing and cleaning. This eliminates the need for complex operations such as disassembly, replacement, and maintenance of the filter screen during system shutdown, achieving sustainable and efficient comprehensive and effective cleaning of the filter screen. This significantly improves the working efficiency of the filtration device, reduces maintenance costs, and enhances its economic benefits. Furthermore, the horizontal movement of the moving mechanism, via a pull rope, moves a partition horizontally outside the guide rod, ensuring normal operation of the backwashing mechanism while providing isolation and protection from above the filtration tank, preventing operators from accidentally falling into the tank and improving the safety of the device during operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 This is a rear-view perspective view of the present invention;

[0022] Figure 3 This is a rear cross-sectional view of the present invention;

[0023] Figure 4 This is a partial sectional view of the filter tank of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Filter tank; 2. Water tank; 3. Backwash pump; 4. Water delivery hose; 5. Guide rod; 6. Baffle; 7. Positioning seat; 8. Guide channel; 9. Moving box; 10. Flushing nozzle; 11. Overflow port; 12. Slag discharge port; 13. Removable filter screen; 14. Servo motor; 15. Water inlet; 16. Drive motor; 17. Sludge collection tank; 18. Spiral discharge shaft; 19. Sealing slot; 20. Backwash nozzle; 21. Moving wheel; 22. Bottom limit wheel; 23. Side limit wheel; 24. Pull rope. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-4 As shown, this utility model is a filtration device for industrial wastewater, including a filtration tank 1, a detachable filter screen 13 disposed between the inner side walls of the filtration tank 1 near the top, and a sludge collection tank 17 disposed at the bottom of the filtration tank 1, and further including:

[0028] An inlet 15 is located near the bottom on one side of the filter tank 1. Industrial wastewater requiring filtration is pumped into the filter tank 1 through the inlet 15 using a pressurization device. A sealing slot 19 is located near the top of the inner side wall of the filter tank 1. A removable filter screen 13 is inserted into the sealing slot 19. When the liquid level in the filter tank 1 rises to the level of the removable filter screen 13, the industrial wastewater is filtered from bottom to top using a counter-current method. An overflow port 11 is located near the top on the other side of the filter tank 1. The filtered wastewater overflows through the overflow port 11 and is discharged to the next treatment process. The filtered residue is collected at the bottom of the sludge collection tank 17. A slag discharge port 12 is provided at the middle position of the bottom end on the other side of the filter tank 1; a slag discharge mechanism is provided at the bottom end inside the sludge collection tank 17. The slag discharge mechanism includes a drive motor 16 and a spiral discharge shaft 18. The drive motor 16 is provided at the middle position of the bottom end on one side of the filter tank 1. The spiral discharge shaft 18 is provided at the middle position of the bottom end inside the sludge collection tank 17. One side of the spiral discharge shaft 18 is connected to the output end of the drive motor 16 through a sealing bushing. When too much slag is collected in the sludge collection tank 17, the slag discharge port 12 is opened and the drive motor 16 is started to drive the spiral discharge shaft 18 to continuously convey the slag to the slag discharge port 12 for discharge.

[0029] A flushing nozzle 10 is installed above the removable filter screen 13 inside the filter tank 1. A backwash nozzle 20 is provided at the bottom end of the flushing nozzle 10. The backwash nozzles 20 are arranged at equal intervals at the bottom end of the flushing nozzle 10. The removable filter screen 13 is thoroughly backwashed and cleaned through the backwash nozzles 20. A water tank 2 is located at the middle position of the bottom front end of the filter tank 1. A backwash pump 3 is installed at the top of the water tank 2. A water delivery hose 4 is installed at the output end of the backwash pump 3. One end of the water delivery hose 4 is fixedly connected to and communicates with the top end of the flushing nozzle 10. The backwash pump 3 draws flushing water from the water tank 2 and delivers it to the flushing nozzle 10 through the water delivery hose 4. Finally, it is sprayed out through the backwash nozzles 20.

[0030] When in use, the backwash pump 3, which is set at the top of the water tank 2, is started to draw the cleaning water inside the water tank 2, and the water is delivered to the flushing spray pipe 10 through the water delivery hose 4, which is connected to the flushing spray pipe 10 at its output end. Finally, the water is sprayed from above onto the detachable filter screen 13 through the backwash nozzles 20, which are arranged at equal intervals at the bottom of the flushing spray pipe 10, to perform backwash cleaning.

[0031] The moving mechanism is located between the top of the outer side of the flushing nozzle 10 and both sides of the top of the filter tank 1. The moving mechanism includes a positioning seat 7, a guide groove 8, a moving box 9, a servo motor 14, moving wheels 21, bottom limiting wheels 22, and side limiting wheels 23. The positioning seat 7 is fixedly connected to the position near the rear end between the two sides of the top of the filter tank 1. The moving box 9 is located on the outer side of the positioning seat 7. The top, bottom, and rear end of the positioning seat 7 are provided with guide grooves 8. The servo motor 14 is located on the top of the rear end of the moving box 9. The moving wheels 21 are located on the top between the two ends inside the moving box 9. The moving wheels 21 are connected to the output end of the servo motor 14 through a shaft. The servo motor 14 can drive the moving wheels 21 to rotate forward and backward inside the moving box 9. The movable box 9 has a bottom limiting wheel 22 between its two ends and a side limiting wheel 23 at the middle of its rear end. The front end of the movable box 9 is fixedly connected to the top of the outer side of the flushing nozzle 10. The movable wheel 21, the bottom limiting wheel 22, and the side limiting wheel 23 are correspondingly embedded in the inside of the guide groove 8. The movable wheel 21, the bottom limiting wheel 22, and the side limiting wheel 23 can roll inside the guide groove 8. When the movable wheel 21 is driven to roll inside the guide groove 8, it can drive the movable box 9 to move horizontally and stably on the positioning seat 7, thereby driving the flushing nozzle 10 to move horizontally. At the same time, the bottom limiting wheel 22 and the side limiting wheel 23 roll in the guide groove 8 at the corresponding positions to stabilize the movable box 9.

[0032] When in use, the servo motor 14 located at the top rear end of the mobile box 9 is activated to drive the mobile wheel 21 connected to its output end to roll horizontally back and forth in the corresponding end guide groove 8. This drives the mobile box 9 to move horizontally back and forth outside the positioning seat 7, thereby driving the flushing nozzle 10 and the backwash nozzle 20 to move back and forth above the detachable filter screen 13 to perform backwashing operations. At the same time, the bottom limiting wheel 22 located at the bottom of both ends inside the mobile box 9 and the side limiting wheel 23 located at the rear end roll in the corresponding guide groove 8 to stabilize the mobile box 9, thereby ensuring the stability of the flushing nozzle 10 when it is moved.

[0033] A safety protection structure is provided between the bottom of both sides of the mobile box 9 and the top of both sides inside the filter tank 1. The safety protection structure includes guide rods 5, partitions 6 and pull ropes 24. The guide rods 5 are fixedly connected to the top two ends between the two sides inside the filter tank 1. The partitions 6 are provided between the outer sides of the guide rods 5 and can move between the outer sides of the guide rods 5. The guide rods 5 limit the partitions 6 and can block and protect the filter tank 1 from above. The two sides of the mobile box 9 are fixedly connected to the partitions 6 on the corresponding sides. The two ends of the partitions 6 are provided between the two sides inside the filter tank 1 and the two sides inside the filter tank 1. The pull ropes 24 can be used to move the partitions 6 with the mobile box 9.

[0034] When the movable box 9 moves horizontally back and forth on the outside of the positioning seat 7, it drives the partitions 6 fixedly connected on both sides to move at the same time. The pull rope 24 connected between the partitions 6 can make the partitions 6 move between the outside of the guide rod 5 at the same time, thereby avoiding affecting the normal movement of the movable box 9 and achieving the function of blocking and protecting from the filter pool 1.

[0035] Working Principle: When using the industrial wastewater filtration device, the industrial wastewater to be filtered is first pumped into the filter tank 1 through the inlet 15 via a pressurization device. When the liquid level in the filter tank 1 rises to the removable filter screen 13, it is filtered from bottom to top using a counter-current method. The filtered wastewater overflows through the overflow port 11 and is discharged to the next treatment process. The filtered residue is collected at the bottom of the collection tank 17. When too much residue is collected in the collection tank 17, the slag discharge port 12 is opened and the drive motor 16 is started to drive the spiral discharge shaft 18 to continuously convey the residue to the slag discharge port 12 and discharge it from the device. After the device has been running for a long time, the backwash pump 3 is started to draw the cleaning water from the water tank 2 and deliver it through the water softener. Pipe 4 delivers water to the flushing nozzle 10, and finally sprays it from above onto the removable filter screen 13 through the backwash nozzle 20 for backwashing and cleaning. At the same time, the servo motor 14 is started to drive the moving wheel 21 to roll horizontally back and forth in the corresponding end guide groove 8, which drives the moving box 9 to move horizontally back and forth outside the positioning seat 7. This, in turn, drives the flushing nozzle 10 and the backwash nozzle 20 to move back and forth above the removable filter screen 13 for a comprehensive backwashing operation. Meanwhile, the bottom limiting wheel 22 and the side limiting wheel 23 roll in the corresponding guide groove 8 to stabilize the moving box 9. The partition 6 moves with the moving box 9 and is pulled by the pull rope 24 to move simultaneously, ensuring that the flushing operation is carried out normally while providing protection from the filter tank 1 and ensuring the safe operation of the device.

[0036] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A filtration device for industrial wastewater, comprising a filter tank (1), a removable filter screen (13) disposed between the inner side walls of the filter tank (1) near the top, and a sludge collection tank (17) disposed at the bottom of the filter tank (1), characterized in that, Also includes: The slag discharge mechanism is located at the bottom of the sludge collection tank (17); A flushing nozzle (10) is installed above a removable filter screen (13) inside the filter tank (1), and a backwash nozzle (20) is provided at the bottom end of the flushing nozzle (10). A water tank (2) is located at the middle position of the bottom front end of the filter pool (1). A backwash pump (3) is installed at the top of the water tank (2), and a water delivery hose (4) is installed at the output end of the backwash pump (3). The moving mechanism is located between the top of the outside of the flushing nozzle (10) and the two sides of the top of the filter tank (1).

2. The industrial wastewater filtration device according to claim 1, characterized in that, The backwash nozzles (20) are arranged at equal intervals at the bottom end of the flushing nozzle (10), and one end of the water supply hose (4) is fixedly connected to and communicates with the top end of the flushing nozzle (10).

3. The industrial wastewater filtration device according to claim 1, characterized in that, The moving mechanism includes a positioning seat (7), a guide groove (8), a moving box (9), a servo motor (14), a moving wheel (21), a bottom limiting wheel (22), and a side limiting wheel (23). The positioning seat (7) is fixedly connected to the position between the top two sides of the filter tank (1) near the rear end. The moving box (9) is provided on the outside of the positioning seat (7). The top, bottom, and rear end of the positioning seat (7) are provided with guide grooves (8). The servo motor (14) is located at the top of the rear end of the moving box (9). The top of the moving box (9) between the two ends is provided with a moving wheel (21). The moving wheel (21) is connected to the output end of the servo motor (14) through a shaft. The bottom of the moving box (9) between the two ends is provided with a bottom limiting wheel (22). The middle position of the rear end of the moving box (9) is provided with a side limiting wheel (23). A safety protection structure is provided between the bottom of the two sides of the moving box (9) and the top of the two sides inside the filter tank (1).

4. The industrial wastewater filtration device according to claim 3, characterized in that, The front end of the movable box (9) is fixedly connected to the top of the outside of the flushing nozzle (10). The movable wheel (21), the bottom limiting wheel (22), and the side limiting wheel (23) are correspondingly embedded in the inside of the guide groove (8), and the movable wheel (21), the bottom limiting wheel (22), and the side limiting wheel (23) can roll inside the guide groove (8).

5. The industrial wastewater filtration device according to claim 1, characterized in that, The filter pool (1) has an inlet (15) near the bottom on one side, an overflow port (11) near the top on the other side, a slag discharge port (12) in the middle of the bottom on the other side, a sealing slot (19) in the inner sidewall of the filter pool (1) near the top, and the outer side of the detachable filter screen (13) is inserted into the interior of the sealing slot (19).

6. The industrial wastewater filtration device according to claim 1, characterized in that, The slag discharge mechanism includes a drive motor (16) and a spiral discharge shaft (18). The drive motor (16) is located at the middle position of the bottom end of one side of the filter tank (1). The spiral discharge shaft (18) is located at the middle position of the bottom end inside the sludge collection tank (17). One side of the spiral discharge shaft (18) passes through the inside of the filter tank (1) through a sealing bushing and is connected to the output end of the drive motor (16).

7. A filtration device for industrial wastewater according to claim 3, characterized in that, The safety protection structure includes guide rods (5), partitions (6), and pull ropes (24). The guide rods (5) are fixedly connected to the top two ends between the two sides inside the filter tank (1). The partitions (6) are provided between the outer sides of the guide rods (5) and can move between the outer sides of the guide rods (5). The two sides of the movable box (9) are fixedly connected to the partitions (6) on the corresponding sides. The two ends between the partitions (6) and the two sides inside the filter tank (1) are provided with pull ropes (24).

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