Backwash water pipe slag separating and filtering device

Abstract

The utility model discloses a backwashing water pipe slag separation filter device, which comprises a filter pipe, a filter screen and a backwashing mechanism, the filter screen and the backwashing mechanism are arranged on the filter pipe, the backwashing mechanism comprises a washing pipe, a washing nozzle, an adjusting pipe, a washing protection box, a driving part, a supply pipe and a liquid pump, the washing pipe is arranged in a through hole at the top of the filter pipe, and the adjusting pipe is arranged in the through hole. The lower end of the flushing pipe extends downwards into the filter pipe, a flushing nozzle is arranged at the lower end part of the flushing pipe, the upper end of the flushing pipe is connected with the adjusting pipe, the flushing protection box covers the top of the filter pipe and covers the flushing pipe and the adjusting pipe, and the adjusting pipe penetrates out of the flushing protection box to be connected with the supply pipe, the liquid pump, the valve and the filter pipe. The driving part is arranged at the outer top of the flushing protection box, the lower end of the driving part penetrates into the flushing protection box to be connected with the flushing pipe, and a blow-down valve is arranged at the bottom of the filter pipe on the left side of the filter screen. According to the utility model, dirt in the filter can be effectively flushed, the dirt is prevented from blocking a pipeline and the filter, and normal water supply is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of backwater filtering or pipeline anti-blocking, and particularly relates to a backwashing water pipe slag separation filtering device. Background Art

[0002] In industrial production, in order to save resources and costs, return water is fully utilized. For example, in a mineral processing plant, the water after the first mineral processing will be roughly filtered and reused as return water. With the recycling of return water, a large amount of fine debris such as underground explosive skin mixed in the return water will enter the water pipe. Due to factors such as the size of the water pipe, the debris will easily block the pipe, causing the water to become smaller or even disappear. Therefore, the development of a water filter with automatic cleaning function is the key to solving the problem. Utility Model Content

[0003] The utility model provides a water pipe slag separation and filtering device for backwashing.

[0004] The utility model is realized through the following technical scheme: it comprises a filter tube, a filter screen and a backwashing mechanism are arranged at the middle section of the filter tube, the backwashing mechanism comprises a flushing pipe, a flushing nozzle, an adjustment pipe, a flushing protective box, a driving member, a supply pipe, and a liquid pump, the flushing pipe is arranged in a through hole at the top of the filter tube, the two are movably matched, the lower end of the flushing pipe extends downward into the interior of the filter tube, a flushing nozzle is arranged at its lower end, and the flushing pipe and the flushing nozzle are both on the right side of the filter screen, the upper end of the flushing pipe is connected to the adjustment pipe, the flushing protective box cover is arranged at the top of the filter tube, and covers the flushing pipe and the adjustment pipe, the adjustment pipe passes through the flushing protective box to connect the supply pipe, the supply pipe is sequentially connected to the liquid pump, the valve and the liquid outlet end of the filter tube, the driving member is arranged at the top outside the flushing protective box, the lower end of the driving member passes through the flushing protective box to connect the flushing pipe, the flushing pipe is controlled to do lifting movement, and a sewage valve is arranged at the bottom of the filter tube on the left side of the filter screen.

[0005] Furthermore, a positioning tube is provided in each flushing protection box, one end of the positioning tube is closed, and the other end is connected to the adjustment tube, and the tube body of the positioning tube is connected in series to the top of each flushing tube, and the lower end of the driving member is connected to the positioning tube.

[0006] Furthermore, the adjustment tube is a flexible tube, and a trumpet-shaped boosting tube is provided between the adjustment tube and the supply tube. The small end of the boosting tube penetrates into the filter tube and is fixed on the filter tube, and the large end is connected to the supply tube.

[0007] The beneficial effects of the utility model are as follows: the utility model has a compact structure, and by directly installing the flushing mechanism on the filter tube body, under normal circumstances, it does not interfere with the water supply, and is started for backwashing only when cleaning is needed. On the basis of filtering the return water, it can automatically complete the flushing and cleaning functions, and can effectively flush the dirt inside the filter to avoid the accumulation of dirt, thereby reducing the clogging of the pipe and the filter by the dirt, and ensuring the normal water supply to the subsequent water-using equipment; it significantly reduces the failure rate and the maintenance frequency, and also solves the problem of manual replacement and unblocking of blocked pipes, greatly improving work efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model;

[0009] Figure 2 It is a structural schematic diagram of the backwashing mechanism;

[0010] Figure 3 It is a structural schematic diagram of the filter screen and the circular support frame;

[0011] Numbers in the figure: 1~filter tube, 2~left pipe section, 3~right pipe section, 4~flange, 5~filter screen, 6~circular support frame, 7~flushing pipe, 8~flushing nozzle, 9~adjusting pipe, 10~flushing protective box, 11~driving part, 12~supply pipe, 13~positioning pipe, 14~liquid pump, 15~water storage tank, 16~valve, 17~drain valve, 18~boosting pipe. DETAILED DESCRIPTION

[0012] In order to enable those skilled in the art to better understand the technical solution of the utility model, its specific implementation method is described in detail below with reference to the accompanying drawings.

[0013] like Figures 1 to 3The backwashing water pipe slag filtering device shown comprises a filter tube 1, a filter screen 5 and a backwashing mechanism are arranged at the middle section of the filter tube 1, the backwashing mechanism comprises a flushing pipe 7, a flushing nozzle 8, an adjustment pipe 9, a flushing protection box 10, a driving member 11, a supply pipe 12, and a liquid pump 14, the flushing pipe 7 is arranged in a through hole at the top of the filter tube 1, and the two are connected by a sealing slip ring to ensure that the flushing pipe 7 can slide up and down in the through hole, the lower end of the flushing pipe 7 extends downward into the interior of the filter tube 1, and a flushing nozzle 8 is arranged at its lower end, and the flushing pipe 7 and the flushing nozzle 8 They are all on the right side of the filter screen 5. The upper end of the flushing pipe 7 is connected to the adjustment pipe 9. The flushing protective box 10 is covered at the top of the filter tube 1 and covers the flushing pipe 7 and the adjustment pipe 9. The adjustment pipe 9 passes through the flushing protective box 10 to connect to the supply pipe 12. The supply pipe 12 is connected to the liquid pump 14, the valve 16 and the liquid outlet end of the filter tube 1 in sequence. The driving member 11 is arranged at the top outside the flushing protective box 10. The lower end of the driving member 11 passes through the flushing protective box 10 to connect to the flushing pipe 7 to control the flushing pipe 7 to make lifting movement. A drain valve 17 is arranged at the bottom of the filter tube 1 on the left side of the filter screen 5.

[0014] The filter tube 1 is formed by a left pipe section 2 and a right pipe section 3 connected together. Flanges 4 are respectively arranged at the interfaces of the left pipe section 2 and the right pipe section 3. The inner diameter of the flange 4 on the left pipe section 2 is smaller than the inner diameter of the flange 4 on the right pipe section 3. At least three limit blocks are arranged on the inner circumference of the right pipe section 3. The limit blocks limit the circular support frame 6 equipped with the filter screen 5 between the limit blocks and the flange 4 of the left pipe section 2. The position limitation prevents the filter screen 5 from shaking randomly due to the action of water flow.

[0015] The driving member 11 is a cylinder, a hydraulic cylinder or an electric push rod, and the driving member 11 is sealed and connected to the filter tube 1 by a sliding sealing ring to ensure that there is no leakage when the driving member 11 moves normally.

[0016] There are at least three filter screens 5, which are equidistantly arranged on a circular support frame 6. From the liquid inlet end to the liquid outlet end of the filter tube 1, the mesh aperture of the filter screen 5 decreases, and the mesh aperture ratio of adjacent filter screens 5 is 1:0.5-0.7. At least three filter screens 5 with inconsistent apertures are arranged to filter and remove residues and debris of different volumes in turn, thereby improving the filtering effect and solving the defects of clogging and insufficient filtration of a single filter screen 5.

[0017] A flushing pipe 7 is provided on the right side of each filter screen 5, and the upper end of each flushing pipe 7 passes through the filter tube 1 upward to connect to the adjustment pipe 9, so that each filter screen 5 is correspondingly provided with a flushing pipe 7, thereby improving the flushing effect, and at the same time, the residue and debris attached to each filter screen 5 are reversely flushed into the left pipe section 2 of the filter tube 1, and finally discharged from the drain valve 17.

[0018] A positioning tube 13 is provided in each of the flushing protective boxes 10. One end of the positioning tube 13 is closed and the other end is connected to the adjustment tube 9. The tube body of the positioning tube 13 is connected in series to the top of each flushing tube 7. The lower end of the driving member 11 is connected to the positioning tube 13. Each flushing tube 7 is fixed by the positioning tube 13 to ensure that they can be raised and lowered synchronously under the drive of the driving member 11, thereby solving the problem of motion interference caused by the lack of synchronization of the flushing tubes 7.

[0019] The adjustment tube 9 is a flexible tube and has a certain excess length to ensure that the driving member 11 drives the positioning tube 13 to perform lifting and lowering movements without being interfered by the adjustment tube 9, and can supply water to the flushing tube 7 normally. A trumpet-shaped boosting tube 18 is provided between the adjustment tube 9 and the supply tube 12. The small end of the boosting tube 18 passes through the filter tube 1 and is fixed on the filter tube 1, and the large end is connected to the supply tube 12, thereby increasing the water outlet pressure of the flushing nozzle 8 and making the flushing and decontamination ability stronger.

[0020] It also includes a water storage tank 15 , the liquid inlet of the water storage tank 15 is connected to the valve 16 through the supply pipe 12 , and the liquid outlet is connected to the liquid pump 14 through the supply pipe 12 .

[0021] The top of the water storage tank 15 is provided with a material adding port. To ensure clean flushing, detergent can be added into the water storage tank 15 through the material adding port.

[0022] Working mode of the utility model:

[0023] 1. Install the filter tube 1 on the pipeline, and connect the left pipe section 2 to the water outlet end of the pipeline, and the right pipe section 3 to the water inlet end of the pipeline; during normal operation, the driving member 11 drives the positioning tube 13 to rise, so that the flushing nozzle 8 is close to the inner top of the filter tube 1 to reduce the resistance to water, and at the same time prevent the flushing tube 7 and the flushing nozzle 8 from being damaged by long-term flushing of water. The water in the pipeline enters from the left pipe section 2, and is discharged into the pipeline from the right pipe section 3 after being filtered. At the same time, open the valve 16 on the supply pipe 12, so that the water in the pipeline is automatically input into the water storage tank 15 for storage under the action of negative pressure. After the storage is full, you can choose to close the valve 16 or not.

[0024] 2. When the system has been running for a certain period of time, which can be set according to actual needs, such as one week, two weeks, one month, etc., when the filter screen 5 needs to be flushed and cleaned, the water supply in the pipeline is stopped, or the water supply may not be stopped. The drain valve 17 is opened, and the liquid pump 14 is started to extract water from the water storage tank 15 into the booster pipe 18 to supply the booster adjustment pipe 9, which is then distributed to each flushing pipe 7 by the positioning pipe 13. The filter screen 5 on the left side is flushed through the flushing nozzle 8, and the debris and scum under reverse flushing pass through the filter screen 5 into the left pipe section 2 in turn, and are finally discharged from the drain valve 17.

[0025] 3. During the flushing process, the driving member 11 drives the positioning tube 13 to descend so that the flushing nozzle 8 can fully flush the filter screen 5. To ensure sufficient cleaning, the driving member 11 can be controlled to drive the positioning tube 13 to repeatedly move downward and upward. When the flushing is completed, the driving member 11 drives the positioning tube 13 to rise and reset, and the drain valve 17 and the liquid pump 14 can be closed.

Claims

1. A backwashing water pipe slag filter device, comprising a filter tube (1), a filter screen (5) and a backwashing mechanism arranged at the middle section of the filter tube (1), characterized in that: The backwashing mechanism comprises a flushing pipe (7), a flushing nozzle (8), an adjustment pipe (9), a flushing protection box (10), a driving member (11), a supply pipe (12), and a liquid pump (14). The flushing pipe (7) is arranged in a through hole at the top of the filter pipe (1). The two are movably matched. The lower end of the flushing pipe (7) extends downward into the interior of the filter pipe (1). The flushing nozzle (8) is arranged at the lower end thereof. The flushing pipe (7) and the flushing nozzle (8) are both located on the right side of the filter screen (5). The upper end of the flushing pipe (7) is connected to the adjustment pipe (9). The flushing protection box (10) covers It is arranged at the top of the filter tube (1) and covers the flushing tube (7) and the adjustment tube (9). The adjustment tube (9) passes through the flushing protective box (10) and is connected to the supply tube (12). The supply tube (12) is connected to the liquid pump (14), the valve (16) and the liquid outlet end of the filter tube (1) in sequence. The driving member (11) is arranged at the top outside the flushing protective box (10). The lower end of the driving member (11) passes through the flushing protective box (10) and is connected to the flushing tube (7) to control the flushing tube (7) to move up and down. A sewage discharge valve (17) is arranged at the bottom of the filter tube (1) on the left side of the filter screen (5).

2. The backwashing water pipe slag filter device according to claim 1, characterized in that: The driving member (11) is a cylinder, a hydraulic cylinder or an electric push rod.

3. The backwashing water pipe slag filter device according to claim 1, characterized in that: The filter screens (5) are at least three in number, and the filter screens (5) are equidistantly arranged on a circular support frame (6). From the liquid inlet end to the liquid outlet end of the filter tube (1), the mesh aperture of the filter screen (5) decreases, and the mesh aperture ratio of adjacent filter screens (5) is 1:0.5-0.

7.

4. The backwashing water pipe slag filter device according to claim 3, characterized in that: A flushing pipe (7) is provided on the right side of each filter screen (5), and the upper end of each flushing pipe (7) passes through the filter pipe (1) upwards and is connected to the adjustment pipe (9).

5. The backwashing water pipe slag filter device according to claim 1, characterized in that: A positioning tube (13) is arranged in each of the flushing protection boxes (10), one end of the positioning tube (13) is closed, and the other end is connected to the adjustment tube (9), and the tube body of the positioning tube (13) is connected in series to the top of each flushing tube (7), and the lower end of the driving member (11) is connected to the positioning tube (13).

6. The backwashing water pipe slag filter device according to claim 1, characterized in that: The adjustment tube (9) is a flexible tube. A boosting tube (18) with a trumpet-shaped structure is provided between the adjustment tube (9) and the supply tube (12). The small-mouthed end of the boosting tube (18) penetrates into the filter tube (1) and is fixed on the filter tube (1), while the large-mouthed end is connected to the supply tube (12).

7. The backwashing water pipe slag filter device according to claim 1, characterized in that: The filter tube (1) is formed by butt-jointing a left tube section (2) and a right tube section (3), and flanges (4) are respectively arranged at the interfaces of the left tube section (2) and the right tube section (3), and the inner diameter of the flange (4) on the left tube section (2) is smaller than the inner diameter of the flange (4) on the right tube section (3), and at least three stop blocks are arranged on the inner circumference of the right tube section (3).

8. The backwashing water pipe slag filter device according to claim 1, characterized in that: It also comprises a water storage tank (15), wherein the liquid inlet of the water storage tank (15) is connected to a valve (16) via a supply pipe (12), and the liquid outlet is connected to a liquid pump (14) via the supply pipe (12).

9. The backwashing water pipe slag filter device according to claim 8, characterized in that: The top of the water storage tank (15) is provided with a material adding port.

Images