CN114470960A - Drainage filtering device for vanadium precipitation wastewater tank and using method thereof - Google Patents

Abstract

The invention discloses a drainage filtering device for a vanadium-precipitating wastewater tank and a use method thereof, the drainage filtering device comprises a flow distribution box, a partition plate is fixedly connected inside the flow distribution box, a slide block is connected between the inner wall of the flow distribution box and the partition plate in a sliding manner, a through groove is formed in the outer side of the slide block, a first connecting rod is fixedly connected to one side of the slide block, a first piston is fixedly connected to one end, away from the slide block, of the first connecting rod, a second connecting rod is fixedly connected to one side, away from the first connecting rod, of the slide block, and a second piston is fixedly connected to one end, away from the slide block, of the second connecting rod. Can avoid the impurity directly to block up the filter, be favorable to practical application and operation.

Description

A kind of drainage filter device for vanadium precipitation wastewater pool and using method thereof

technical field

The invention belongs to the technical field of drainage filtration, in particular to a drainage filtration device for vanadium precipitation waste water pools and a use method thereof.

Background technique

In the current life, vanadium is a metal element, the element symbol is V, a silver-gray metal, belonging to the VB group in the periodic table, atomic number 23, atomic weight 50.9414, body-centered cubic crystal, common valences are +5, +4 , +3, +2. Vanadium has a high melting point and is a refractory metal, ductile, hard and non-magnetic. It has the ability to resist hydrochloric acid and sulfuric acid, and its resistance to gas, salt and water corrosion is better than that of most stainless steels. When the wastewater is discharged from the vanadium precipitation wastewater pool, it is often necessary to filter the wastewater again.

However, when the existing vanadium precipitation wastewater pool is drained, the wastewater is often simply passed into the filter cartridge with a filter screen for filtering, and when the filter screen inside the filter cartridge is blocked, it cannot continue to drain. The filtration operation affects the entire process, and at the same time, it is impossible to quickly clear the blockage inside the filter cartridge, which is not conducive to practical application and operation.

Invention content:

The purpose of the present invention is to provide a drainage filter device for vanadium precipitation waste water tank and its use method in order to solve the above problems, and solve the problems mentioned in the background art.

In order to solve the above-mentioned problems, the present invention provides a kind of technical scheme:

A drainage filtering device for vanadium precipitation waste water tank, comprising a shunt box, a partition plate is fixedly connected inside the shunt box, a sliding block is slidably connected between the inner wall of the shunt box and the partition plate, and an outer side of the slider is slidably connected. A through groove is opened, a first connecting rod is fixedly connected to one side of the slider, a first piston is fixedly connected to the end of the first connecting rod away from the slider, and the side of the slider away from the first connecting rod is fixedly connected A second connecting rod is fixedly connected, and one end of the second connecting rod away from the slider is fixedly connected with a second piston. A first connecting pipe is fixedly connected to the outside of the shunt box and is located on one side of the first piston, and one end of the first connecting pipe that is far away from the shunt box is fixedly connected with a first filter cartridge. One side of the piston is fixedly connected with a second connecting pipe, an adjustment mechanism is arranged on the outside of the shunt box and located between the first connecting pipe and the second connecting pipe, and one end of the second connecting pipe away from the shunt box is fixedly connected with a The second filter cartridge, the inside of the first filter cartridge and the second filter cartridge are both slidably connected with a filter plate, the outer side of the filter plate is equally spaced with first filter holes, the first filter cartridge and the second filter The inside of the cylinder and one side of the filter plate are provided with a clearing mechanism, and the bottom of the first filter cylinder and the second filter cylinder and the bottom of the filter plate are fixedly connected with discharge pipes, and the outer sides of the discharge pipes are all fixedly connected. A shutter is provided.

Preferably, the adjustment mechanism includes a through hole, a through hole is defined on the outside of the shunt box and located between the first connecting pipe and the second connecting pipe, and a U is fixedly connected to the outside of the shunt box and located outside the through hole. The outer side of the U-shaped plate is threadedly connected with a threaded rod, the end of the threaded rod close to the shunt box penetrates the U-shaped plate and is rotatably connected with a fixed rod, and the end of the fixed rod away from the threaded rod extends through the through hole to the The inside of the shunt box is slidably connected with the through hole, a push rod is fixedly connected to the outside of the fixing rod and located inside the shunt box, and one end of the push rod away from the fixing rod penetrates through the through slot and is slidably connected with the through slot.

Preferably, the blocking removal mechanism includes a chute, the top and bottom of the inner wall of the first filter cartridge and the second filter cartridge and one side of the filter plate are both provided with a chute, and the top and bottom of the filter plate are both A moving block is fixedly connected, and the moving blocks extend to the inside of the corresponding chute and are slidably connected with the chute, and a return spring is fixedly connected to one side of the inner wall of the chute, and the return spring is far away from the chute One end of the inner wall is fixedly connected with the corresponding moving block, and a fixed plate is fixedly connected to the inside of the first filter cartridge and the second filter cartridge and is located on one side of the filter plate, and the fixed plate is close to one side of the filter plate and A thimble is fixedly connected to one side of the first filter hole, and a second filter hole is opened on the outer side of the fixed plate and between two adjacent thimbles.

Preferably, a water inlet pipe is fixedly connected to a side of the shunt box away from the first connecting pipe.

Preferably, both ends of the first filter cartridge and the second filter cartridge away from the shunt box are fixedly connected with a drain pipe.

Preferably, the through groove and the separator form an included angle of forty-five degrees.

Preferably, the filter plates all form an included angle of 60 degrees with the horizontal plane.

Preferably, an adjustment knob is fixedly connected to one end of the threaded rod away from the fixing rod.

A method of using a drainage filter device for a vanadium-precipitating waste water tank, comprising the following steps:

S1. Install the equipment at the designated position, connect the water inlet pipe to the waste water pipeline in the vanadium precipitation waste water tank, and at the same time connect the two drain pipes to the waste water conveying pipeline, and then the waste water in the vanadium precipitation waste water tank enters the diversion Inside the box, through the cooperation of the first piston and the second piston, the waste water enters the corresponding first filter cartridge or the second filter cartridge, and the waste water entering the first filter cartridge or the second filter cartridge passes through the filter plate and the filter plate. The first filter hole is filtered, and then discharged through the second filter hole and the drain pipe;

S2. When the waste water enters the corresponding first filter cartridge or the second filter cartridge, the waste water impacts the filter plate, pushing the filter plate to move, and at the same time squeezes the corresponding return spring through the moving block, through the elastic force of the return spring As well as the impact of the waste water flow, the filter plate reciprocates. At the same time, when the filter plate moves to the fixed plate, the first filter hole on the filter plate is cleared through the top needle, and the discharge pipe can be opened through the gate, and the discharge pipe can be discharged through the valve plate. The pipe cleans the impurities generated by the blockage removal;

S3. At the same time, when one of the first filter cartridge or the second filter cartridge is blocked or there are many impurities, the threaded rod can be driven to rotate through the adjustment knob, so as to drive the fixed rod to slide inside the through hole, and at the same time pass the fixed rod. The cooperation between the outer push rod and the through groove drives the slider to move in the shunt box, and then drives the first piston and the second piston to move correspondingly through the first connecting rod and the second connecting rod, so as to control the first and second pistons. When a connecting pipe and the second connecting pipe are connected and disconnected, the first filter cartridge or the second filter cartridge is replaced to perform the filtering operation.

The beneficial effects of the present invention are as follows: the present invention has a compact structure and strong practicability. By setting a shunt box to connect two filter cartridges, when one of the filter cartridges is blocked, it can be switched to the other filter cartridge for drainage and filtration, thereby ensuring the entire The process can be carried out smoothly, and at the same time, by setting up a blocking removal mechanism inside the filter cartridge, it can prevent impurities from directly blocking the filter plate, which is beneficial to practical application and operation.

Description of drawings:

For ease of description, the present invention is described in detail by the following specific implementations and accompanying drawings.

Fig. 1 is the top view of the present invention;

Fig. 2 is the top sectional view of the present invention;

Fig. 3 is the enlarged view of A place in Fig. 2;

4 is a schematic diagram of the internal structure of the first filter cartridge of the present invention.

In the figure: 1, shunt box; 2, partition; 3, slider; 4, through groove; 5, first connecting rod; 6, first piston; 7, second connecting rod; 8, second piston; 9 91, through hole; 92, U-shaped plate; 93, threaded rod; 94, fixed rod; 95, push rod; 96, adjustment knob; 10, first connecting pipe; 11, gate; 12, first 1. Filter cartridge; 13. Second connecting pipe; 14. Second filter cartridge; 15. Filter plate; 16. First filter hole; 17. Blocking mechanism; 171. Chute; 172. Moving block; Spring; 174, fixed plate; 175, thimble; 176, second filter hole; 18, water inlet pipe; 19, drain pipe; 20, discharge pipe.

Detailed ways:

As shown in Figures 1-4, this specific implementation adopts the following technical solutions:

Example:

A drainage filter device for vanadium precipitation waste water tank, comprising a shunt box 1, a partition plate 2 is fixedly connected to the inside of the shunt box 1, and the inside of the shunt box 1 is facilitated to be better divided by the partition plate 2; A sliding block 3 is slidably connected between the inner wall of the box 1 and the partition plate 2 , a through groove 4 is opened on the outer side of the sliding block 3 , and a first connecting rod 5 is fixedly connected to one side of the sliding block 3 . One end of a connecting rod 5 away from the slider 3 is fixedly connected with a first piston 6 , and a side of the slider 3 away from the first connecting rod 5 is fixedly connected with a second connecting rod 7 , and the second connecting rod 7 is far away from the sliding block 5 . One end of the block 3 is fixedly connected with a second piston 8, and the first piston 6 and the second piston 8 are both slidably connected between the partition plate 2 and the inner wall of the shunt box 1, and the first piston 6 and the second piston 8 are convenient. The waste water inside the shunt box 1 is better blocked and shunted; the first connecting pipe 10 is fixedly connected to the outside of the shunt box 1 and located on one side of the first piston 6, and the first piston 6 facilitates better control of the first connecting pipe 10. A connection pipe 10 is connected and disconnected; the end of the first connection pipe 10 away from the distribution box 1 is fixedly connected with the first filter cartridge 12 , and the outside of the distribution box 1 and on the side of the second piston 8 is fixedly connected with a first filter cartridge 12 . Two connecting pipes 13 , through the second piston 8 to facilitate better control of the on-off of the second connecting pipe 13 ; an adjustment mechanism is provided on the outside of the shunt box 1 and between the first connecting pipe 10 and the second connecting pipe 13 9. One end of the second connecting pipe 13 away from the shunt box 1 is fixedly connected with a second filter cartridge 14, and a filter plate 15 is slidably connected to the inside of the first filter cartridge 12 and the second filter cartridge 14. The outer side of the plate 15 is equally spaced with first filter holes 16, and the filter plate 15 and the first filter holes 16 are used to facilitate better filtering operations; the first filter cartridge 12 and the second filter cartridge 14 are located inside and located at One side of the filter plate 15 is provided with a blocking removal mechanism 17, and a discharge pipe 20 is fixedly connected to the bottom of the first filter cartridge 12 and the second filter cartridge 14 and below the filter plate 15. The outer side is provided with a shutter 11 , which facilitates better removal of filtered impurities through the discharge pipe 20 , and facilitates better control of the on-off of the discharge pipe 20 through the shutter 11 .

Wherein, the adjustment mechanism 9 includes a through hole 91 , a through hole 91 is formed on the outside of the shunt box 1 and located between the first connecting pipe 10 and the second connecting pipe 13 , and the through hole 91 is outside the shunt box 1 and located in the through hole The outer side of 91 is fixedly connected with a U-shaped plate 92, and the outer side of the U-shaped plate 92 is threadedly connected with a threaded rod 93. The end of the threaded rod 93 close to the shunt box 1 penetrates the U-shaped plate 92 and is rotatably connected with a fixed rod 94. One end of the fixing rod 94 away from the threaded rod 93 extends through the through hole 91 to the interior of the shunt box 1 and is slidably connected with the through hole 91 . A push rod 95 is fixedly connected to the outside of the fixing rod 94 and inside the shunt box 1 . , the end of the push rod 95 away from the fixed rod 94 penetrates through the through groove 4 and is slidably connected with the through groove 4. By setting the adjustment mechanism 9, it is convenient to better adjust the relative position of the first piston 6 and the second piston 8, thereby controlling The connection between the first connecting pipe 10 and the second connecting pipe 13 is, specifically, driven by the adjusting knob 96 to drive the threaded rod 93 to rotate, so as to drive the fixed rod 94 to slide inside the through hole 91 , and at the same time push the outside of the fixed rod 94 The cooperation between the rod 95 and the through groove 4 drives the slider 3 to move in the interior of the shunt box 1, and then drives the first piston 6 and the second piston 8 through the first connecting rod 5 and the second connecting rod 7 to correspondingly Move, so as to control the connection between the first connection pipe 10 and the second connection pipe 13, and replace the first filter cartridge 12 or the second filter cartridge 14 to perform the filtering operation.

Wherein, the blocking removal mechanism 17 includes a chute 171 , and the top and bottom of the inner walls of the first filter cartridge 12 and the second filter cartridge 14 are provided with a chute 171 on one side of the filter plate 15 . The top and bottom of 15 are fixedly connected with moving blocks 172, the moving blocks 172 all extend to the inside of the corresponding chute 171 and are slidably connected with the chute 171, and one side of the inner wall of the chute 171 is fixedly connected with a return. Position spring 173, one end of the return spring 173 away from the inner wall of the chute 171 is fixedly connected with the corresponding moving block 172, the first filter cartridge 12 and the second filter cartridge 14 are located inside and on one side of the filter plate 15 Both are fixedly connected with a fixed plate 174, the side of the fixed plate 174 close to the filter plate 15 and the side of the first filter hole 16 are fixedly connected with a thimble 175, the outer side of the fixed plate 174 is located in the adjacent two A second filter hole 176 is opened between the thimbles 175. By setting the blocking removal mechanism 17, it is convenient to better clear the blockage of the first filter hole 16 on the filter plate 15. Specifically, when the waste water enters the first filter cartridge 12 or After the inside of the second filter cartridge 14, the waste water impacts the filter plate 15, pushes the filter plate 15 to move, and at the same time squeezes the corresponding return spring 173 through the moving block 172, through the elastic force of the return spring 173 and the impact of the waste water flow , so that the filter plate 15 reciprocates, and when the filter plate 15 moves to the fixed plate 174, the first filter hole 16 on the filter plate 15 is blocked by the ejector pin 175, and the waste water is filtered through the first filter hole 16. Then it is discharged through the second filter hole 176 and the drain pipe 19 .

Wherein, a water inlet pipe 18 is fixedly connected to the side of the shunt box 1 away from the first connecting pipe 10 .

Wherein, the ends of the first filter cartridge 12 and the second filter cartridge 14 away from the shunt box 1 are fixedly connected with a drain pipe 19, and the drain pipe 19 facilitates better discharge of filtered water.

Wherein, the through groove 4 and the partition plate 2 form an included angle of forty-five degrees, which is convenient for better transmission.

Wherein, the filter plate 15 forms an included angle of 60 degrees with the horizontal plane, which is convenient to better ensure that the impurities filtered on the filter plate 15 can fall naturally.

Wherein, the end of the threaded rod 93 away from the fixing rod 94 is fixedly connected with an adjustment knob 96 , and the adjustment knob 96 facilitates better driving the threaded rod 93 to rotate.

A method of using a drainage filter device for a vanadium-precipitating waste water tank, comprising the following steps:

S1, install the equipment on the designated position, connect the water inlet pipe 18 with the waste water pipeline in the vanadium sinking waste water tank, and simultaneously connect the two drain pipes 19 with the waste water conveying pipeline, and then the waste water in the vanadium sinking waste water tank is connected. Entering the inside of the distribution box 1, through the cooperation of the first piston 6 and the second piston 8, the waste water enters the corresponding first filter cartridge 12 or the second filter cartridge 14, and enters the first filter cartridge 12 or the second filter cartridge 12 or the second filter cartridge. The waste water inside the cylinder 14 is filtered through the filter plate 15 and the first filter hole 16, and then discharged through the second filter hole 176 and the drain pipe 19;

S2. When the waste water enters the corresponding first filter cartridge 12 or the inside of the second filter cartridge 14, the waste water impacts the filter plate 15, pushes the filter plate 15 to move, and at the same time squeezes the corresponding return spring 173 through the moving block 172, through the The elastic force of the return spring 173 and the impact of the waste water flow make the filter plate 15 reciprocate. At the same time, when the filter plate 15 moves to the fixed plate 174, the first filter hole 16 on the filter plate 15 is cleaned by the ejector pin 175. Blocking, and the discharge pipe 20 can be opened through the gate 11, and the impurities generated by the blockage removal can be cleaned through the discharge pipe 20;

S3. At the same time, when one of the first filter cartridge 12 or the second filter cartridge 14 is blocked or has a lot of impurities, the threaded rod 93 can be driven to rotate through the adjustment knob 96, thereby driving the fixed rod 94 in the through hole 91. At the same time, through the cooperation between the push rod 95 on the outer side of the fixed rod 94 and the through groove 4, the slider 3 is driven to move in the interior of the shunt box 1, and then the first connecting rod 5 and the second connecting rod 7 are driven. The first piston 6 and the second piston 8 move correspondingly, so as to control the connection between the first connecting pipe 10 and the second connecting pipe 13, and replace the first filter cartridge 12 or the second filter cartridge 14 for filtering operation.

In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top" ", "inside", "front", "center", "both ends", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present invention and simplifying the description, and It is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and should not be understood as indicating or implying relative importance or implying the number of technical features indicated, Thus, features defined as "first", "second", "third", "fourth" may expressly or implicitly include at least one of such features.

In the present invention, unless otherwise expressly specified and limited, terms such as "installation", "arrangement", "connection", "fixation", "swivel connection" and other terms should be understood in a broad sense, for example, it may be a fixed connection, or It can be a detachable connection or an integrated body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction between the two elements. Unless otherwise clearly defined, those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (9)

1. A drainage filter device for vanadium-precipitation wastewater pond, comprising a shunt box (1), characterized in that the interior of the shunt box (1) is fixedly connected with a partition plate (2), and the A sliding block (3) is slidably connected between the inner wall and the partition plate (2), a through groove (4) is formed on the outer side of the sliding block (3), and one side of the sliding block (3) is fixedly connected with a first sliding block (3). A connecting rod (5), one end of the first connecting rod (5) away from the slider (3) is fixedly connected with a first piston (6), and one end of the slider (3) away from the first connecting rod (5) The side is fixedly connected with a second connecting rod (7), the end of the second connecting rod (7) away from the slider (3) is fixedly connected with a second piston (8), the first piston (6) and the second The pistons (8) are all slidably connected between the partition plate (2) and the inner wall of the shunt box (1), and a first connection is fixedly connected to the outside of the shunt box (1) and located on one side of the first piston (6). A pipe (10), one end of the first connecting pipe (10) away from the shunt box (1) is fixedly connected with a first filter cartridge (12), the outside of the shunt box (1) and located at the second piston (8) A second connecting pipe (13) is fixedly connected to one side of the shunt box (1), and an adjusting mechanism (9) is provided on the outside of the shunt box (1) and between the first connecting pipe (10) and the second connecting pipe (13), A second filter cartridge (14) is fixedly connected to one end of the second connecting pipe (13) away from the shunt box (1), and the first filter cartridge (12) is slidably connected to the inside of the second filter cartridge (14). There is a filter plate (15), the outer side of the filter plate (15) is equally spaced with first filter holes (16), the first filter cartridge (12) and the second filter cartridge (14) are located inside the filter One side of the plate (15) is provided with a blocking removal mechanism (17), and the bottom of the first filter cartridge (12) and the second filter cartridge (14) and below the filter plate (15) are fixedly connected with a discharge A pipe (20) is provided with a shutter (11) on the outside of the discharge pipe (20). 2. A kind of drainage filtering device for vanadium precipitation wastewater pool according to claim 1, characterized in that, the adjusting mechanism (9) comprises a through hole (91), and the outside of the shunt box (1) is located in the first A through hole (91) is formed between a connecting pipe (10) and the second connecting pipe (13), and a U-shaped plate (92) is fixedly connected to the outside of the shunt box (1) and to the outside of the through hole (91). The outer side of the U-shaped plate (92) is threadedly connected with a threaded rod (93), and one end of the threaded rod (93) close to the shunt box (1) penetrates the U-shaped plate (92) and is rotatably connected with a fixed rod (94). ), the end of the fixing rod (94) away from the threaded rod (93) extends through the through hole (91) to the interior of the shunt box (1) and is slidably connected with the through hole (91). A push rod (95) is fixedly connected outside and inside the shunt box (1), and one end of the push rod (95) away from the fixing rod (94) penetrates through the through groove (4) and is slidably connected with the through groove (4). 3. A kind of drainage filtering device for vanadium precipitation waste water pool according to claim 1, characterized in that, the blocking removal mechanism (17) comprises a chute (171), and the first filter cartridge (12) is connected with the first filter cartridge (12) The top and bottom of the inner wall of the second filter cartridge (14) and on one side of the filter plate (15) are provided with chute (171), and the top and bottom of the filter plate (15) are fixedly connected with moving blocks (172) , the moving blocks (172) all extend to the inside of the corresponding chute (171) and are slidably connected with the chute (171), and a return spring (173) is fixedly connected to one side of the inner wall of the chute (171). ), one end of the return spring (173) away from the inner wall of the chute (171) is fixedly connected with the corresponding moving block (172), the first filter cartridge (12) and the second filter cartridge (14) And the side located on the filter plate (15) is fixedly connected with a fixed plate (174), and the fixed plate (174) is fixed on the side close to the filter plate (15) and on the side of the first filter hole (16). A thimble (175) is connected, and a second filter hole (176) is opened on the outer side of the fixing plate (174) and between two adjacent thimbles (175). 4. A kind of drainage filter device for vanadium precipitation waste water tank according to claim 1, is characterized in that, the side of described shunt box (1) away from first connecting pipe (10) is fixedly connected with water inlet pipe (18) . 5. A kind of drainage filter device for vanadium precipitation waste water tank according to claim 1, is characterized in that, described first filter cartridge (12) and second filter cartridge (14) are far away from one end of shunt box (1) both at one end. A drain pipe (19) is fixedly connected. 6 . The drainage filtering device for vanadium precipitation wastewater pool according to claim 1 , wherein the through groove ( 4 ) and the partition plate ( 2 ) are at an angle of forty-five degrees. 7 . 7 . The drainage filter device for vanadium precipitation wastewater pool according to claim 1 , wherein the filter plates ( 15 ) all form an included angle of 60 degrees with the horizontal plane. 8 . 8 . The drainage filtering device for vanadium precipitation wastewater pool according to claim 2 , wherein an adjusting knob (96) is fixedly connected to one end of the threaded rod (93) away from the fixing rod (94). 9 . 9. the using method of a kind of drainage filter device for vanadium precipitation waste water tank according to any one of claims 1-8, is characterized in that, comprises the following steps: S1. Install the equipment at the designated position, connect the water inlet pipe (18) to the waste water pipeline in the vanadium precipitation waste water tank, and simultaneously connect the two drain pipes (19) to the waste water transportation pipeline, and then connect the vanadium precipitation waste water to the waste water pipeline. The waste water in the pool enters the inside of the shunt box (1), and through the cooperation of the first piston (6) and the second piston (8), the waste water enters the corresponding first filter cartridge (12) or the second filter cartridge (14). ), the waste water entering the first filter cartridge (12) or the second filter cartridge (14) is filtered through the filter plate (15) and the first filter hole (16), and then passes through the second filter hole (176) and Drain pipe (19) for discharge; S2. When the waste water enters the corresponding first filter cartridge (12) or the inside of the second filter cartridge (14), the waste water impacts the filter plate (15), pushes the filter plate (15) to move, and simultaneously passes through the moving block (172) Squeeze the corresponding return spring (173), through the elastic force of the return spring (173) and the impact of the waste water flow, the filter plate (15) reciprocates, and when the filter plate (15) moves toward the fixed plate (174) ) moves, the first filter hole (16) on the filter plate (15) is cleared by the ejector pin (175), and the discharge pipe (20) can be opened through the shutter (11), and the discharge pipe (20) Clean up the impurities generated by the blockage; S3. At the same time, when one of the first filter cartridge (12) or the second filter cartridge (14) is blocked or there are many impurities, the threaded rod (93) can be driven to rotate through the adjusting knob (96), thereby driving The fixed rod (94) slides inside the through hole (91), and at the same time, through the cooperation between the push rod (95) outside the fixed rod (94) and the through groove (4), the slider (3) is driven in the shunt box ( 1) moves the position inside, and then drives the first piston (6) and the second piston (8) to move correspondingly through the first connecting rod (5) and the second connecting rod (7), thereby controlling the first connecting pipe ( 10) Connecting and disconnecting the second connecting pipe (13), replacing the first filter cartridge (12) or the second filter cartridge (14) to perform the filtering operation.

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