CN218980621U - Garbage leachate pretreatment device with backwashing function - Google Patents

Abstract

The utility model relates to a take landfill leachate preprocessing device of back flush function, it includes the pretreatment case, be provided with the filter on the inner wall of pretreatment case, be provided with the cleaning member on the pretreatment case, the cleaning member is used for cleaning the filter upper surface, it is provided with a plurality of back flush shower nozzles to slide on the pretreatment case, a plurality of back flush shower nozzles all are located the one end that the filter is close to ground, the delivery port of back flush shower nozzle sets up towards the filter, be provided with the subassembly that slides on the pretreatment case, the subassembly that slides is used for driving a plurality of back flush shower nozzles and slides in step. The application has the effect of improving the filtration efficiency of the percolate.

Description

Garbage leachate pretreatment device with backwashing function

Technical Field

The application relates to the field of landfill leachate, in particular to a landfill leachate pretreatment device with a backwashing function.

Background

The landfill leachate is high-concentration organic wastewater which is formed by deducting saturated water holding capacity of garbage and a soil covering layer from water contained in the garbage in a landfill, rain and snow water entering the landfill and other water and passing through the garbage layer and the soil covering layer, but the landfill leachate is inevitably doped with some solid impurities, and the impurities are required to be separated from the leachate.

In the related art, a filter screen is generally used for screening solid impurities, but after a certain time, the solid impurities can block meshes of the filter screen, impurities on the surface of the filter screen can be scraped by using a scraper, but part of impurities embedded in the meshes of the filter screen still cannot be removed, the filter screen is always blocked, the filtration rate of percolate is slowed down, and the treatment efficiency of the pretreatment device is further reduced.

Disclosure of Invention

In order to improve the filtration efficiency of leachate, the application provides a landfill leachate preprocessing device of back flush function.

The garbage leachate pretreatment device with the backwashing function adopts the following technical scheme:

the utility model provides a take landfill leachate preprocessing device of back flush function, includes the pretreatment case, be provided with the filter on the inner wall of pretreatment case, be provided with the cleaning member on the pretreatment case, the cleaning member is used for cleaning the filter upper surface, it is provided with a plurality of back flush shower nozzles to slide on the pretreatment case, a plurality of the back flush shower nozzles all are located the one end that the filter is close to ground, the delivery port of back flush shower nozzle sets up towards the filter, be provided with the subassembly that slides on the pretreatment case, the subassembly that slides is used for driving a plurality of back flush shower nozzles and slides in step.

Through adopting above-mentioned technical scheme, through the setting of back flush shower nozzle, when the filter was stopped up on the pretreatment tank, stopped the filtration liquid and got into the pretreatment tank earlier, and the back flush shower nozzle of restarting is towards the filter injection water column, and the impurity in the filtration pore can be pushed up to the filter upper surface to the water column of spouting, and the rethread cleaning member gets rid of the impurity on the filter screen upper surface, and then makes the filter plate maintain in the state of relative unblock, has improved the filtration rate of filter, has improved preprocessing device's treatment effeciency promptly.

Optionally, be provided with the preparation case on the pretreatment case, the first mouth that slides has been seted up on the pretreatment case, the second mouth that slides has been seted up on the preparation case, the first mouth that slides communicates each other with the second mouth that slides, the subassembly that slides sets up on the preparation case, the subassembly that slides includes at least one screw rod, slider, connecting rod and places the board, the screw rod rotates and sets up on the preparation case, slider and screw rod threaded connection, place the board and be connected with the slider rotation, the one end of connecting rod prepares the case and rotates to be connected, the other end of connecting rod rotates with place the board to be connected, a plurality of back flush shower nozzle all is located places the board, be provided with drive assembly on the preparation case, drive assembly is used for driving the screw rod and rotates.

Through adopting above-mentioned technical scheme, when need clean the filtration hole of filter, through drive assembly drive screw rod rotation, the screw rod drives the slider and slides towards the connecting rod, and simultaneously, the connecting rod rotates towards the pretreatment case, and then, places the board and drives back flush shower nozzle and slide towards filter one end, back flush shower nozzle washes the filter; when the filter plate is cleaned, the first screw rod is driven to reversely rotate, the sliding block slides away from the connecting rod, the connecting rod synchronously slides towards the preparation box, and the placing plate slides away from the filter plate until the placing plate is completely positioned in the preparation box; through the cooperation of the first screw rod, the sliding block, the connecting rod and the placement plate, the back flushing spray head can be always positioned in the preparation box when the pretreatment box filters percolate, so that the possibility of pollution caused by the percolate to the back flushing spray head is reduced.

Optionally, the pretreatment box is provided with a slide way, and the slide way is used for sliding connection of the sliding block.

By adopting the technical scheme, the sliding track of the sliding block is fixed by the sliding way, so that the possibility of damage to the placing plate caused by rotation of the sliding block is reduced.

Optionally, the driving assembly comprises a motor, at least one driving belt wheel and at least one synchronous belt wheel, wherein the driving belt wheel is connected with the output end of the motor, the synchronous belt wheel is connected with the driving belt wheel through a synchronous belt, and the synchronous belt wheel is connected with the screw rod.

Through adopting above-mentioned technical scheme, the starter motor, motor drive band pulley rotates, and then passes through the synchronous pulley rotation that the hold-in range links to each other with the drive band pulley to the slider slides along the slide, finally realizes placing the opening and accomodating of board.

Optionally, a baffle is slidably disposed on the pretreatment tank, and the baffle is used for sealing the first sliding port.

Through adopting above-mentioned technical scheme, through the setting of baffle, when the pretreatment case handled the filtration liquid, make the baffle seal first mouth that slides, separate between baffle will pretreatment case and the preparation case promptly, reduced the filtration liquid and got into the possibility in the preparation case, further improved the cleanliness factor of back flush shower nozzle.

Optionally, set up on the baffle in the cooperation piece, the spout has been seted up on the pretreatment case, the spout is used for supplying the cooperation piece to slide and connects, be provided with the guide block on the pretreatment case, the guide slot has been seted up on the guide block, guide slot and spout intercommunication each other.

Through adopting above-mentioned technical scheme, when back flush shower nozzle is located the preparation case, the baffle is to the first mouth that slides, when filter plate needs to clean, drives the baffle and slides along the spout until place the board and can slide to the pretreatment case in, when placing the baffle again, can be earlier with the lower bottom surface of baffle and the interior diapire butt of guide way to promote the baffle until the baffle slides and get into in the spout, through the setting of guide way, need not operating personnel and lift the baffle to in the spout, make the installation of baffle more light and simple.

Optionally, the drain has been seted up on the pretreatment case, be provided with the closing plate on the pretreatment case, the closing plate is used for sealed drain, the cleaning member includes a plurality of cooperation shower nozzle, a plurality of cooperation shower nozzle is located the one end that the back flush shower nozzle was kept away from to the filter.

Through adopting above-mentioned technical scheme, when the clean filter of needs, open the closing plate, start back flush shower nozzle with impurity top in the filter filtration pore to the upper surface of filter, the cooperation flushing shower nozzle can wash impurity on the filter upper surface to drain department, impurity along with rivers outflow pretreatment tank, the filter is accomplished cleanly, finally through the sealed drain of closing plate can.

Optionally, the one end that the closing plate was kept away from to the filter sets up away from ground, and the one end that the closing plate was close to the filter sets up near ground.

Through adopting above-mentioned technical scheme, the filter of slope can be directed to cooperation shower nozzle spun rivers and be located the impurity on the filter upper surface, and the direction impurity slides to drain department, has improved the cleanliness factor of filter.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the back flush spray heads, when the filter plate on the pretreatment tank is blocked, the water column sprayed by the back flush spray heads can push impurities in the filter holes to the upper surface of the filter plate, and then the impurities on the upper surface of the filter screen are removed through the cleaning piece, so that the filter plate is maintained in a relatively unimpeded state, the filtration rate of the filter plate is improved, and the treatment efficiency of the pretreatment device is improved;

2. through the cooperation of the first screw rod, the sliding block, the connecting rod and the placement plate, the back flushing spray head can be always positioned in the preparation box when the pretreatment box filters percolate, so that the possibility of pollution caused by the percolate to the back flushing spray head is reduced;

3. the impurity on the upper surface of the filter plate can be flushed to the sewage outlet by matching with the flushing nozzle, and finally the impurity flows out of the pretreatment box along with water flow.

Drawings

Fig. 1 is an overall schematic diagram of a pretreatment device in an embodiment of the present application.

Fig. 2 is a schematic view showing a mounting portion in an embodiment of the present application.

Fig. 3 is a schematic view showing a screw portion in the embodiment of the present application.

Reference numerals illustrate: 1. a pretreatment box; 101. a filter plate; 102. a first slip port; 2. a sewage outlet; 201. a sealing plate; 3. a preparation box; 301. a second sliding port; 4. a baffle; 5. a mating block; 6. a chute; 7. a handle; 8. a mounting frame; 9. a water tank; 10. a slideway; 11. a slide block; 12. a screw; 13. placing a plate; 14. back flushing the spray head; 15. a connecting rod; 16. a drive assembly; 1601. a motor; 1602. a driving belt wheel; 1603. a synchronous pulley; 17. a first delivery tube; 18. a water diversion pipe; 19. a second delivery tube; 20. matching with a flushing spray head; 21. a guide block; 22. a guide groove.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-3.

The embodiment of the application discloses a landfill leachate pretreatment device with a backwashing function. Referring to fig. 1 and 2, a garbage leachate pretreatment device with a backwash function comprises a pretreatment tank 1, wherein a filter plate 101 is fixed on the side wall of the pretreatment tank 1, a sewage outlet 2 is formed in one side wall of the pretreatment tank 1, the inner bottom wall of the sewage outlet 2 is connected with the upper surface of the filter plate 101, a sealing plate 201 is fixed on the pretreatment tank 1 through bolts, and the sealing plate 201 is used for sealing the sewage outlet 2. The filter plate 101 is obliquely arranged, one end of the filter plate 101, which is far away from the sealing plate 201, is far away from the ground, and one end of the filter plate 101, which is close to the sealing plate 201, is close to the ground. The percolate is poured into the pretreatment tank 1, and impurities in the percolate can be filtered by the filter plate 101.

Referring to fig. 1 and 2, a preliminary tank 3 is fixedly provided on a side wall of the pretreatment tank 1, a first sliding port 102 is provided on the preliminary tank, a second sliding port 301 is provided on the preliminary tank 3, and the first sliding port 102 and the second sliding port 301 are communicated with each other.

Referring to fig. 1 and 2, a baffle 4 is slidably disposed on the pretreatment tank 1, a matching block 5 is integrally formed on the baffle 4, a chute 6 is formed on the pretreatment tank 1, the chute 6 is used for slidably connecting a slide block 11, and a handle 7 is fixedly disposed on the side wall of the baffle 4.

Referring to fig. 2, a guide block 21 is welded to the pretreatment tank 1, a guide groove 22 is formed in the guide block 21, and the guide groove 22 is communicated with the chute 6.

Referring to fig. 2, a mounting bracket 8 is vertically provided on the bottom wall of the preliminary tank 3, and a water tank 9 is fixedly provided in the preliminary tank 3.

Referring to fig. 2 and 3, two slide ways 10 are fixedly arranged on the mounting frame 8, the two slide ways 10 are vertically arranged, two screw rods 12 are rotatably arranged on the mounting frame 8, the two screw rods 12 are located in the slide ways 10, sliding blocks 11 are connected to the two screw rods 12 in a threaded mode, the slide ways 10 are used for sliding the sliding blocks 11, a placing plate 13 is rotatably arranged on the sliding blocks 11, a plurality of back flushing spray heads 14 are fixedly arranged on the placing plate 13, in the embodiment of the application, the number of the back flushing spray heads 14 is thirty-five, seven back flushing spray heads 14 are in a group of five groups, seven back flushing spray heads 14 in the same group are arranged along the length direction of the placing plate 13, and the five back flushing spray heads 14 are arranged along the width direction of the placing plate 13. The placing plate 13 is rotatably connected with two connecting rods 15, one end, away from the placing plate 13, of each connecting rod 15 is rotatably connected with the mounting frame 8, the preparation box 3 is provided with a driving assembly 16, and the driving assembly 16 is used for driving the two screws 12 to synchronously rotate.

Referring to fig. 3, the driving assembly 16 includes a motor 1601, two driving pulleys 1602 and two synchronous pulleys 1603, the motor 1601 is located on a top wall of the preparation box 3, the two driving pulleys 1602 are fixedly connected with an output end of the motor 1601, one driving pulley 1602 is connected with one synchronous pulley 1603 through a synchronous belt, the other driving pulley 1602 is connected with the other synchronous pulley 1603 through a synchronous belt as well, one synchronous pulley 1603 is fixedly connected with one screw 12, and the other synchronous pulley 1603 is fixedly connected with the other screw 12.

Through the start motor 1601, the output end of the motor 1601 synchronously drives two driving pulleys 1602 to rotate, and then drives a synchronous pulley 1603 connected with the driving pulleys 1602 through a synchronous belt to rotate, further, the screw 12 synchronously rotates, and further, the sliding block 11 slides along the sliding way 10, namely the placing plate 13 synchronously slides.

Referring to fig. 2 and 3, the water tank 9 is connected with a first delivery pipe 17, the placement plate 13 is provided with a water diversion pipe 18, the first delivery pipe 17 is connected with the water diversion pipe 18, and the water diversion pipe 18 can distribute water in the first delivery pipe 17 to each backwash shower nozzle 14. In this embodiment, the first conveying pipe 17 is a 304 stainless steel metal hose, and a certain length is reserved for the placement plate 13 to displace.

Referring to fig. 2, a plurality of cooperation flushing nozzles 20 are fixedly arranged on the side wall of the pretreatment tank 1, and the cooperation flushing nozzles 20 are arranged along the horizontal direction, in this embodiment, the number of cooperation flushing nozzles 20 is five. Five second delivery pipes 19 are connected to the water tank 9, the second delivery pipes 19 being used to deliver water to the cooperating shower heads 20.

After the filtering plate 101 filters the percolate, a part of impurities may remain on the upper surface of the filtering plate 101, and another part of impurities may be fitted into the filtering holes on the filtering plate 101. When the impurities in the filter holes need to be cleaned, the percolate is stopped to enter the pretreatment tank 1, the handle 7 on the baffle plate 4 is pulled, the baffle plate 4 is driven to slide along the chute 6 until the baffle plate 4 does not seal the first sliding opening 102 any more, the motor 1601 is started again, the motor 1601 drives the driving belt wheel 1602 to rotate, the synchronous belt wheel 1603 connected with the driving belt wheel 1602 through the synchronous belt rotates, the screw 12 further synchronously rotates, the sliding block 11 slides along the sliding way 10 towards the ground, the connecting rod 15 slides away from the mounting frame 8, the placing plate 13 synchronously slides towards the filter plate 101, the sealing plate 201 is separated from the pretreatment tank 1 after that, the water tank 9 is started again, so that water in the water tank 9 enters the first conveying pipe 17 and the second conveying pipe 19 and is conveyed into the back flushing spray head 14 and the matched flushing spray head 20, the water in the back flushing spray head 14 can clean the filter holes on the filter plate 101 and push the impurities in the filter plate 101 to the upper surface, the water flow matched with the flushing spray head 14 can flush the impurities on the upper surface 2 of the filter plate 101 towards the drain outlet 2, and the impurities can be finally discharged from the drain outlet 2. The amount of impurities remaining on the filter plate 101 after cleaning is extremely small, so that the filter plate 101 is kept in a relatively smooth state, and the filtering rate of the filter plate 101 is improved, namely, the treatment efficiency of the pretreatment device is further improved.

After the filter plate 101 is cleaned, the sealing plate 201 is fixed on the side wall of the pretreatment box 1 through bolts, the sealing plate 201 seals the sewage outlet 2, then the water supply of the water tank 9 to the first conveying pipe 17 and the second conveying pipe 19 is stopped, the screw 12 is driven by the motor 1601 to reversely rotate, the placing plate 13 slides towards the mounting frame 8 until the upper top surface of the sliding block 11 is abutted with the inner top wall of the slideway 10. In this embodiment, there is an included angle between the placement plate 13 and the mounting frame 8 all the time. After the storage of the placement plate 13 is completed, the baffle 4 is placed in the guide groove 22, the baffle 4 is pushed to slide, the baffle 4 is slid into the chute 6 through the guide groove 22, and the baffle 4 is pushed continuously, so that the baffle 4 seals the first sliding opening 102. By the arrangement of the guide groove 22, the process of placing the baffle 4 by an operator is easier and simpler.

The implementation principle of the garbage leachate pretreatment device with the backwashing function is as follows: the filter holes of the filter plate 101 are cleaned through the back flushing spray head 14, impurities in the filter holes are flushed to the upper surface of the filter plate 101, and then the upper surface of the filter plate 101 is flushed through the cooperation of the flushing spray head 20, so that the impurities are discharged from the sewage outlet 2.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The utility model provides a take landfill leachate preprocessing device of back flush function which characterized in that: including pretreatment tank (1), be provided with filter (101) on the inner wall of pretreatment tank (1), be provided with the cleaning member on pretreatment tank (1), the cleaning member is used for cleaning filter (101) upper surface, it is provided with a plurality of back flush shower nozzles (14) to slide on pretreatment tank (1), a plurality of back flush shower nozzles (14) all are located the one end that filter (101) is close to the ground, the delivery port of back flush shower nozzle (14) sets up towards filter (101), be provided with the subassembly that slides on pretreatment tank (1), the subassembly that slides is used for driving a plurality of back flush shower nozzles (14) and slides in step.

2. The garbage leachate pretreatment device with a backwash function according to claim 1, wherein the garbage leachate pretreatment device is characterized in that: the pretreatment box (1) is provided with a preparation box (3), a first sliding opening (102) is formed in the pretreatment box (1), a second sliding opening (301) is formed in the preparation box (3), the first sliding opening (102) and the second sliding opening (301) are mutually communicated, a sliding component is arranged on the preparation box (3), the sliding component comprises a plurality of screws (12), a sliding block (11), a connecting rod (15) and a placing plate (13), the screws (12) are rotationally arranged on the preparation box (3), the sliding block (11) is in threaded connection with the screws (12), the placing plate (13) is rotationally connected with the sliding block (11), one end of the connecting rod (15) is rotationally connected with the placing plate (13), the other end of the connecting rod (15) is rotationally connected with the placing plate (13), a plurality of back flushing spray heads (14) are all arranged on the placing plate (13), and the driving component (16) is arranged on the preparation box (3) and is used for driving the screws (12).

3. The garbage leachate pretreatment device with a backwash function according to claim 2, wherein the garbage leachate pretreatment device is characterized in that: the pretreatment box (1) is provided with a slide way (10), and the slide way (10) is used for sliding connection of the sliding block (11).

4. The garbage leachate pretreatment device with a backwash function according to claim 2, wherein the garbage leachate pretreatment device is characterized in that: the driving assembly (16) comprises a motor (1601), at least one driving belt wheel (1602) and at least one synchronous belt wheel (1603), wherein the driving belt wheel (1602) is connected with the output end of the motor (1601), the synchronous belt wheel (1603) is connected with the driving belt wheel (1602) through a synchronous belt, and the synchronous belt wheel (1603) is connected with the screw (12).

5. The garbage leachate pretreatment device with a backwash function according to claim 2, wherein the garbage leachate pretreatment device is characterized in that: the pretreatment box (1) is provided with a baffle plate (4) in a sliding mode, and the baffle plate (4) is used for sealing the first sliding opening (102).

6. The garbage leachate pretreatment device with a backwash function according to claim 5, wherein the garbage leachate pretreatment device is characterized in that: set up on baffle (4) in cooperation piece (5), spout (6) have been seted up on pretreatment tank (1), spout (6) are used for supplying cooperation piece (5) to slide and connect, be provided with guide block (21) on pretreatment tank (1), guide slot (22) have been seted up on guide block (21), guide slot (22) and spout (6) intercommunication each other.

7. The garbage leachate pretreatment device with a backwash function according to claim 1, wherein the garbage leachate pretreatment device is characterized in that: the sewage treatment device is characterized in that a sewage outlet (2) is formed in the pretreatment box (1), a sealing plate (201) is arranged on the pretreatment box (1), the sealing plate (201) is used for sealing the sewage outlet (2), and the cleaning piece comprises a plurality of matched flushing spray heads (20), wherein the matched flushing spray heads (20) are located at one end, far away from the back flushing spray heads (14), of the filter plate (101).

8. The garbage leachate pretreatment device with a backwash function according to claim 1, wherein the garbage leachate pretreatment device is characterized in that: one end of the filter plate (101) far away from the sealing plate (201) is far away from the ground, and one end of the filter plate (101) near the sealing plate (201) is near the ground.

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