A kind of active carbon filter backwash wastewater recycling circulating device

Abstract

The utility model relates to wastewater treatment technical field, concretely is a kind of activated carbon filter backwash wastewater recycling circulating device, including circulating water tank, filter screen, backflush mechanism, backwater pipe and clearing mechanism;Circulating water tank bottom is communicated with residue collecting hopper, and the top of circulating water tank is detachably connected with sealing cover;Filter screen is detachably set in circulating water tank, and fixedly connected with support ring in circulating water tank;Backflush mechanism is set on sealing cover, and one end of backflush mechanism penetrates sealing cover and extends to circulating water tank, and the other end of backflush mechanism is connected with activated carbon filter outlet;Backwater pipe penetrates circulating water tank;Clearing mechanism is set in circulating water tank for clearing filter screen.This utility model is set between circulating water tank, filter screen, backflush mechanism and backwater pipe, guarantees the flushing effect while realizing the recycling of water, both can reduce the waste of water resources, and can reduce the pollution to water resources.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a device for recycling backwash wastewater from activated carbon filters. Background Technology

[0002] After a certain period of use, activated carbon filters trap and adsorb a certain amount of impurities and dirt in their filter media, which causes the quality of the effluent to decline. Backwashing of activated carbon filters involves passing water in the reverse direction through the filter media, causing the filter media to expand and suspend. The shearing force of the water flow and the collision and friction of the particles clean the filter media, causing the dirt inside the filter media to be removed and discharged with the backwash water, thereby ensuring the quality of the effluent from the activated carbon filter.

[0003] Chinese Patent CN216191231U discloses an automatic backwashing activated carbon filter, comprising a filter body, supporting columns installed at the four corners of the bottom of the filter body, a mounting seat on the upper inner side of the filter body, a mounting groove installed on the bottom inner wall of the filter body, an activated carbon filter basket installed on the top of the mounting seat and embedded in the top of the mounting groove, a pressure sensor installed at the bottom of the inner wall of the filter body and inside the mounting groove, a liquid outlet pipe installed at the bottom of the filter body and through the inside of the mounting groove, and a liquid outlet solenoid valve sleeved around the liquid outlet pipe, and an inlet pipe and a backwash drain pipe installed sequentially from top to bottom on the right side of the filter body. The overall device has a simple structure, is easy to use for automated all-round liquid spraying backwashing of the internal filtration structure of the activated carbon filter, and has high stability and practicality, and has certain promotional value.

[0004] However, the above technical solution has the following shortcomings: the wastewater generated by the backwashing device is usually discharged directly to the sewage outlet without a circulation device, which results in the water not being fully utilized, causing not only pollution of some water resources, but also waste of water resources. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a device for recycling backwash wastewater from activated carbon filters.

[0006] The technical solution of this utility model: a device for recycling backwash wastewater from activated carbon filters, comprising:

[0007] The circulating water tank has a slag collection hopper at the bottom and a detachable sealing cover at the top.

[0008] The filter screen is detachably installed inside the circulating water tank, and a support ring is fixedly connected inside the circulating water tank. The filter screen is installed on the support ring.

[0009] The backwash mechanism is installed on the sealing cover. One end of the backwash mechanism passes through the sealing cover and extends into the circulating water tank, while the other end of the backwash mechanism is connected to the outlet of the activated carbon filter.

[0010] The return water pipe runs through the circulating water tank and extends into the circulating water tank. The other end of the return water pipe is connected to the inlet of the activated carbon filter.

[0011] The unclogging mechanism is installed inside the circulating water tank to unclogging the filter screen. One end of the unclogging mechanism is connected to the return water pipe.

[0012] Preferably, the backwashing mechanism includes a circulating water pump, an inlet pipe, and a delivery pipe; the circulating water pump is mounted on the sealing cover, one end of the inlet pipe is connected to the inlet of the circulating water pump, the other end of the inlet pipe passes through the sealing cover and extends into the circulating water tank, one end of the delivery pipe is connected to the outlet of the circulating water pump, and the other end of the delivery pipe is connected to the outlet of the activated carbon filter.

[0013] Preferably, both the return water pipe and the supply water pipe are equipped with shut-off valves to isolate the backflushing mechanism from the activated carbon filter.

[0014] Preferably, the inlet pipe and the return pipe are located on the upper and lower sides of the filter screen, respectively, with the inlet pipe located above the filter screen and the return pipe located below the filter screen.

[0015] Preferably, the unclogging mechanism includes a mounting box, a mounting shaft, a cleaning brush, and a power impeller; the mounting box is installed inside the circulating water tank by a support rod, one end of the mounting shaft is rotatably installed inside the mounting box, and the other end of the mounting shaft passes through the mounting box and is rotatably connected to the mounting box, the cleaning brush is installed outside the mounting box and is fixedly connected to the mounting shaft, the cleaning brush contacts the bottom of the filter screen, and the power impeller is installed inside the mounting box and is fixedly connected to the mounting shaft.

[0016] Preferably, the bottom of the slag collection hopper is connected to a slag discharge valve, and the bottom of the slag collection hopper is provided with multiple support legs.

[0017] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0018] This invention utilizes a combination of a circulating water tank, a filter screen, a backwashing mechanism, and a return water pipe to achieve the recycling of backwash water. During the circulation process, the backwash water is filtered, ensuring effective rinsing while achieving water recycling. This reduces water waste and pollution. The anti-clogging mechanism automatically cleans the filter screen, ensuring its filtration efficiency. Attached Figure Description

[0019] Figure 1 This is a perspective view of one embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional view of one embodiment of the present invention;

[0021] Figure 3 This is a cross-sectional view of the unblocking mechanism in one embodiment of the present invention;

[0022] Figure 4 This is a perspective view of the mounting box in one embodiment of the present invention.

[0023] Reference numerals in the attached diagram: 1. Circulating water tank; 2. Slag hopper; 31. Circulating water pump; 32. Inlet pipe; 33. Water delivery pipe; 41. Mounting box; 42. Mounting shaft; 43. Cleaning brush; 44. Power impeller; 5. Sealing cover; 6. Filter screen; 7. Support ring; 8. Return water pipe; 9. Shut-off valve; 10. Slag discharge valve; 11. Support leg. Detailed Implementation

[0024] Example 1

[0025] like Figure 1-4 As shown, the present invention proposes an activated carbon filter backwash wastewater reuse and recycling device, which includes a circulating water tank 1, a filter screen 6, a backwashing mechanism, a return water pipe 8, and a blockage removal mechanism.

[0026] The bottom of the circulating water tank 1 is connected to the slag collection hopper 2, the top of the circulating water tank 1 is detachably connected to the sealing cover 5, the bottom of the slag collection hopper 2 is connected to the slag discharge valve 10, and the bottom of the slag collection hopper 2 is provided with multiple support legs 11.

[0027] The filter screen 6 is detachably installed inside the circulating water tank 1. A support ring 7 is fixedly connected inside the circulating water tank 1, and the filter screen 6 is installed on the support ring 7.

[0028] The backwash mechanism is installed on the sealing cover 5. One end of the backwash mechanism passes through the sealing cover 5 and extends into the circulating water tank 1. The other end of the backwash mechanism is connected to the outlet of the activated carbon filter.

[0029] The return water pipe 8 passes through the circulating water tank 1 and extends into the circulating water tank 1. The other end of the return water pipe 8 is connected to the inlet of the activated carbon filter.

[0030] The unclogging mechanism is installed in the circulating water tank 1 to unclog the filter screen 6. One end of the unclogging mechanism is connected to the return water pipe 8.

[0031] Example 2

[0032] like Figure 1-2As shown, this utility model proposes an activated carbon filter backwash wastewater reuse and recycling device. Compared with Embodiment 1, this embodiment also specifically discloses the structure of the backwash mechanism. The backwash mechanism includes a circulating water pump 31, an inlet pipe 32, and a delivery pipe 33. The circulating water pump 31 is mounted on the sealing cover 5 and is driven by a variable frequency motor. It is connected to the control system and power supply through wires. One end of the inlet pipe 32 is connected to the inlet of the circulating water pump 31, and the other end of the inlet pipe 32 passes through the sealing cover 5 and extends into the circulating water tank 1. One end of the delivery pipe 33 is connected to the outlet of the circulating water pump 31, and the other end of the delivery pipe 33 is connected to the outlet of the activated carbon filter. Both the return pipe 8 and the delivery pipe 33 are equipped with shut-off valves 9 to isolate the backwash mechanism from the activated carbon filter. The inlet pipe 32 and the return pipe 8 are located on the upper and lower sides of the filter screen 6, respectively. The inlet pipe 32 is located above the filter screen 6, and the return pipe 8 is located below the filter screen 6.

[0033] Example 3

[0034] like Figure 2-4 As shown, this utility model proposes an activated carbon filter backwash wastewater reuse and recycling device. Compared with Embodiment 2, this embodiment also specifically discloses the structure of the unclogging mechanism. The unclogging mechanism includes a mounting box 41, a mounting shaft 42, a cleaning brush 43, and a power impeller 44. The mounting box 41 is set in the circulating water tank 1 by a support rod. One end of the mounting shaft 42 is rotatably set in the mounting box 41, and the other end of the mounting shaft 42 passes through the mounting box 41 and is rotatably connected to the mounting box 41. The cleaning brush 43 is set outside the mounting box 41 and is fixedly connected to the mounting shaft 42. The cleaning brush 43 contacts the bottom of the filter screen 6. The power impeller 44 is set in the mounting box 41 and is fixedly connected to the mounting shaft 42.

[0035] When the activated carbon filter needs to be backwashed, first isolate the activated carbon filter from the system. Open the shut-off valve 9 on the return water pipe 8 and the supply water pipe 33 to connect the backwashing mechanism with the activated carbon filter. The circulating water pump 31 works to send water from the circulating water tank 1 to the activated carbon filter through the inlet water pipe 32 and the supply water pipe 33 to backwash the activated carbon filter. The backwash water enters the circulating water tank 1 through the return water pipe 8. When the backwash water enters the circulating water tank 1 through the return water pipe 8, it drives the mounting shaft 42 to rotate through the power impeller 44. The rotation of the mounting shaft 42 drives the cleaning brush 43 to rotate and clean the filter screen 6. After the backwashing is completed, turn off the circulating water pump 31 and the shut-off valve 9, put the activated carbon filter back into the system, and open the slag discharge valve 10 to discharge the slag.

[0036] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A device for recycling backwash wastewater from an activated carbon filter, characterized in that, include: A circulating water tank (1) is connected to a slag collection hopper (2) at its bottom, and a sealing cover (5) is detachably connected to the top of the circulating water tank (1). The filter screen (6) is detachably installed in the circulating water tank (1), and a support ring (7) is fixedly connected inside the circulating water tank (1). The filter screen (6) is installed on the support ring (7). The backwash mechanism is set on the sealing cover (5). One end of the backwash mechanism passes through the sealing cover (5) and extends into the circulating water tank (1). The other end of the backwash mechanism is connected to the outlet of the activated carbon filter. The return water pipe (8) passes through the circulating water tank (1) and extends into the circulating water tank (1). The other end of the return water pipe (8) is connected to the inlet of the activated carbon filter. The unclogging mechanism is installed in the circulating water tank (1) to unclogging the filter screen (6). One end of the unclogging mechanism is connected to the return water pipe (8).

2. The activated carbon filter backwash wastewater reuse and recycling device according to claim 1, characterized in that, The backwash mechanism includes a circulating water pump (31), an inlet pipe (32), and a delivery pipe (33). The circulating water pump (31) is mounted on the sealing cover (5). One end of the inlet pipe (32) is connected to the inlet of the circulating water pump (31), and the other end of the inlet pipe (32) passes through the sealing cover (5) and extends into the circulating water tank (1). One end of the delivery pipe (33) is connected to the outlet of the circulating water pump (31), and the other end of the delivery pipe (33) is connected to the outlet of the activated carbon filter.

3. The activated carbon filter backwash wastewater reuse and recycling device according to claim 2, characterized in that, Both the return water pipe (8) and the supply water pipe (33) are equipped with shut-off valves (9) to isolate the backwash mechanism from the activated carbon filter.

4. The activated carbon filter backwash wastewater reuse and recycling device according to claim 2, characterized in that, The inlet pipe (32) and the return pipe (8) are located on the upper and lower sides of the filter screen (6), respectively. The inlet pipe (32) is located above the filter screen (6), and the return pipe (8) is located below the filter screen (6).

5. The activated carbon filter backwash wastewater reuse and recycling device according to claim 1, characterized in that, The unclogging mechanism includes a mounting box (41), a mounting shaft (42), a cleaning brush (43), and a power impeller (44). The mounting box (41) is installed inside the circulating water tank (1) by a support rod. One end of the mounting shaft (42) is rotatably installed inside the mounting box (41), and the other end of the mounting shaft (42) passes through the mounting box (41) and is rotatably connected to the mounting box (41). The cleaning brush (43) is installed outside the mounting box (41) and is fixedly connected to the mounting shaft (42). The cleaning brush (43) contacts the bottom of the filter screen (6). The power impeller (44) is installed inside the mounting box (41) and is fixedly connected to the mounting shaft (42).

6. The activated carbon filter backwash wastewater reuse and recycling device according to claim 1, characterized in that, The bottom of the slag collection hopper (2) is connected to a slag discharge valve (10), and the bottom of the slag collection hopper (2) is provided with multiple support legs (11).

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