CN216737871U - Landfill leachate treatment system - Google Patents

Abstract

The utility model discloses a landfill leachate treatment system, which comprises a crusher, a conveying device, an extrusion device, a filter tank, a sedimentation device and a reverse osmosis membrane, wherein the crusher is communicated with the conveying device, and an outlet of the conveying device is arranged above the extrusion device; the extrusion device comprises an extrusion box, the top of the extrusion box is provided with a hopper, one side of the extrusion box is provided with a driving box, a push rod is arranged in the driving box, the end part of the push rod is fixedly connected with an extrusion plate, the bottom of the extrusion box consists of a leakage plate and a discharge plate, and the discharge plate is connected with a discharge tank through a discharge pipeline; a filter screen is arranged in the filter tank, the sedimentation device comprises a mixing tank and a sedimentation tank, an adding port is arranged at the top of the mixing tank, the bottom of the sedimentation tank is connected with a sewage discharge tank through a sewage discharge pipeline, the sedimentation tank is connected with a reverse osmosis membrane, and the outlet of the reverse osmosis membrane is connected with a liquid storage tank; the utility model is used for solving the problems that the treatment process of the landfill leachate in the prior art is single, the pollutant treatment is incomplete, and the treated wastewater still has pollution.

Description

Landfill leachate treatment system

Technical Field

The utility model relates to the technical field of garbage treatment equipment, in particular to a garbage leachate treatment system.

Background

The landfill leachate refers to water and precipitation contained in garbage in a landfill, the leachate is a product of gravity flow of liquid in the landfill, the nature of the leachate is not fixed due to the influence of various factors on the liquid in the flow process, and the landfill leachate is high-concentration organic wastewater with complex components and can cause serious environmental pollution if directly discharged into the environment without treatment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a landfill leachate treatment system, which is used for solving the problems that the treatment process of landfill leachate in the prior art is single, pollutants are not completely treated, and the treated wastewater still has pollution.

In order to achieve the purpose, the utility model adopts the following technical scheme: a landfill leachate treatment system comprises a crusher, a conveying device, an extrusion device, a filtering tank, a sedimentation device and a reverse osmosis membrane, wherein an outlet of the crusher is communicated with an inlet of the conveying device, and an outlet of the conveying device is arranged above the extrusion device; the extrusion device comprises an extrusion box, a hopper is arranged at the top of the extrusion box, a baffle is arranged at the bottom of the hopper, a driving box is arranged on one side of the extrusion box, the driving box is communicated with the extrusion box, a push rod is horizontally arranged in the driving box, an extrusion plate is fixedly connected to the end part of the push rod, the extrusion plate is attached to the side wall and the bottom of the extrusion box, the bottom of the extrusion box consists of a leakage plate and a discharge plate, the discharge plate is positioned on one side away from the driving box, a filter tank is arranged at the bottom of the leakage plate, and the bottom of the discharge plate is connected with a discharge tank through a discharge pipeline; be provided with the filter screen in the filter tank, subside the device and include blending tank and settling cask, the export of filtering the jar passes through the import intercommunication of pipeline with the blending tank, the top of blending tank is provided with adds the mouth, the export of blending tank and the import intercommunication through pipeline and settling cask, the bottom of settling cask is connected with the blowdown jar through sewage pipes, the exit of settling cask passes through the access connection of pipeline and reverse osmosis membrane, be provided with the high-pressure pump on the pipeline between settling cask and the reverse osmosis membrane, the export of reverse osmosis membrane has the liquid storage pot through the pipe connection.

Optionally, the conveying device adopts a screw conveyer, the screw conveyer is arranged in an inclined mode, the inlet height of the screw conveyer is lower than the outlet height, the bottommost end of the screw conveyer is provided with a backflow pipeline, and the backflow pipeline is communicated with the filter tank.

Optionally, an iron remover is arranged above the baffle and fixedly connected to the inner wall of the hopper.

Optionally, the extrusion plate is of an L-shaped structure, a vertical plate of the extrusion plate is fixedly connected to the end of the push rod, and a transverse plate of the extrusion plate is fixedly connected to the top of the vertical plate and extends towards the direction of the push rod; the inner wall of the extrusion box is fixedly connected with a partition board matched with the extrusion plate, and the extrusion plate, the partition board, the side wall of the extrusion box and the bottom of the extrusion box jointly enclose an extrusion space.

Optionally, a guide plate is fixedly connected between the partition plate and the top of the extrusion box.

The garbage leachate treatment system has the following advantages:

(1) the crushing back of rubbish is sent into the extrusion incasement by conveyer and is extruded, rubbish is through the extrusion back, rubbish passes through in the discharge tube gets into the discharge tank, filtration liquid sees through the bushing and gets into in the filtration jar, filtration liquid filters through the filter screen, get rid of large granule impurity, then get into in the mixing tank again, add the flocculating agent in to the mixing tank, make the organic matter flocculation in the filtration liquid, and deposit in the sedimentation tank, the organic matter impurity that deposits down passes through in the sewage pipes gets into the blowdown jar, and liquid then handles in getting into reverse osmosis membrane, reverse osmosis membrane's export high concentration metal ion solution and entering storage tank, reverse osmosis membrane's production water outlet output water purification, but recycle.

(2) The iron remover can remove metal impurities in the garbage and avoid the damage to the extrusion device.

(3) The extrusion plate and the partition plate of the L-shaped structure can separate garbage, and garbage is prevented from splashing out of an extrusion space when the garbage is extruded.

(4) The deflector can play the effect of blockking to the rubbish that gets into from the extrusion case top, avoids rubbish to drop at the baffle top, and can't be retrieved by the extrusion.

Drawings

Fig. 1 is a structural arrangement diagram of the present invention.

Fig. 2 is a schematic view of the structure of the pressing device.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1-2, a landfill leachate treatment system comprises a crusher 1, a conveying device, an extrusion device, a filtering tank 17, a sedimentation device and a reverse osmosis membrane 25, wherein the crusher 1 is used for crushing garbage, so that the subsequent extrusion operation is facilitated.

Conveyer is used for carrying the rubbish after the breakage to the extrusion device in, conveyer adopts screw conveyer 2, and the slope of screw conveyer 2 sets up, and screw conveyer 2's import height is less than the export height, and screw conveyer 2's entry and breaker 1's export intercommunication, screw conveyer 2's export setting are in extrusion device's import top, and screw conveyer 2's bottommost is provided with return line 3, return line 3 and filter tank 17 intercommunication.

Extrusion device can extrude the rubbish after the breakage, extrude the filtration liquid in the rubbish, extrusion device includes extrusion box 5, extrusion box 5's top is provided with hopper 4, hopper 4 is located screw conveyer 2's export below, hopper 4's bottom is provided with baffle 7, baffle 7 top is provided with de-ironing separator 8, de-ironing separator 8 fixed connection is on hopper 4's inner wall, the metallic impurity in the rubbish can be detached to de-ironing separator 8, avoid it to cause the harm to extrusion device. When a certain amount of garbage is accumulated in the hopper 4, the baffle 7 is opened to place the garbage into the extrusion box 5, then the baffle 7 is closed, the hopper 4 continues to store the garbage, and the extrusion box 5 extrudes the garbage. One side of squeeze box 5 is provided with drive case 6, drive case 6 and squeeze box 5 intercommunication, the level is provided with push rod 9 in the drive case 6, the tip fixedly connected with stripper plate 10 of push rod 9, fixedly connected with and stripper plate 10 assorted baffle 11 on the right side inner wall of squeeze box 5, baffle 11 level sets up and the same with drive case 6's height, fixedly connected with deflector 12 between baffle 11 and the top of squeeze box 5, deflector 12 can play the effect of blockking to the rubbish that gets into from the top of squeeze box 5, avoid rubbish to drop at baffle 11 top, and can't be retrieved by the extrusion. Stripper plate 10 is L type structure, riser 28 fixed connection of stripper plate 10 is at the tip of push rod 9, diaphragm 29 fixed connection of stripper plate 10 extends at riser 28 top and left side, riser 28 and extrusion box 5's lateral wall and bottom laminating, diaphragm 29 and drive box 6's top and baffle 11's bottom laminating, stripper plate 10, baffle 11, extrusion box 5's lateral wall and extrusion box 5's bottom enclose jointly and become extrusion space 30, the stripper plate 10 and the baffle 11 of L type structure can play the effect of separation to rubbish, avoid when extrusion rubbish, rubbish spill extrusion space 30. The bottom of extrusion case 5 comprises bushing 13 and discharge board 14, and bushing 13 area slightly is big and set up on the left side, and discharge board 14 area is less and set up on the right side, filters jar 17 and sets up in bushing 13's bottom, and discharge board 14's bottom has discharge tank 16 through discharge piping connection. When the garbage falls into the extrusion box 5, the push rod 9 pushes the extrusion plate 10 to the right to extrude the garbage, percolate in the garbage is extruded and falls into the filter tank 17 through the leakage plate 13, then the discharge plate 14 is opened, and the extruded garbage can enter the discharge tank 16 through the discharge pipeline.

The filter tank 17 is used for filtering large-particle impurities, so that the filtered percolate meets the flocculation condition, a filter screen 18 is arranged in the filter tank 17, and the percolate in the screw conveyor 2 and the percolate in the extrusion box 5 are collected in the filter tank and then enter the sedimentation device after being filtered by the filter screen 18.

The settling device is used for getting rid of the organic pollutant in the filtration liquid, and the settling device includes blending tank 19 and settling cask 21, and the export of filter tank 17 passes through the import intercommunication of pipeline with blending tank 19, and the export of blending tank 19 communicates with the import through pipeline and settling cask 21, and the bottom of settling cask 21 is connected with blowdown jar 23 through sewage pipes. An adding port 20 is formed in the top of the mixing tank 19, a flocculating agent is added into the mixing tank 19 through the adding port 20, the flocculating agent is fully mixed with liquid in the mixing tank 19 and then enters a settling tank 21, and in the settling tank 21, flocculated organic matters are precipitated at the bottom of the settling tank 21 and are discharged into a sewage discharge tank 23 through a sewage discharge pipeline.

The export of settling cask 21 passes through the access connection of pipeline and reverse osmosis membrane 25, is provided with high-pressure pump 24 on the pipeline between settling cask 21 and the reverse osmosis membrane 25, and the export of reverse osmosis membrane 25 has liquid storage pot 26 through the pipe connection, and reverse osmosis membrane 25 is used for filtering the metal ion in the filtration liquid. The flocculated leachate meets the requirement of reverse osmosis, and is pressurized by a high-pressure pump 24 to enter a reverse osmosis membrane 25, after reverse osmosis treatment, a high-concentration metal ion solution is produced at an outlet of the reverse osmosis membrane 25 and enters a liquid storage tank 26 for storage, and purified water is produced at a water production port 27 of the reverse osmosis membrane 25 and can be recycled.

This application adopts multiple technology to handle filtration liquid, obtains the result and all places in corresponding jar of body, the follow-up centralized processing of being convenient for, and what actual output was pollution-free water purification, realizes landfill leachate's processing zero release.

The embodiments described above are only a part of the embodiments of the present invention, and not all of them. All other embodiments that can be obtained by a person skilled in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention.

Claims (5)

1. The utility model provides a landfill leachate processing system which characterized in that: the device comprises a crusher, a conveying device, an extrusion device, a filtering tank, a sedimentation device and a reverse osmosis membrane, wherein an outlet of the crusher is communicated with an inlet of the conveying device, and an outlet of the conveying device is arranged above the extrusion device; the extrusion device comprises an extrusion box, a hopper is arranged at the top of the extrusion box, a baffle is arranged at the bottom of the hopper, a driving box is arranged on one side of the extrusion box, the driving box is communicated with the extrusion box, a push rod is horizontally arranged in the driving box, an extrusion plate is fixedly connected to the end part of the push rod, the extrusion plate is attached to the side wall and the bottom of the extrusion box, the bottom of the extrusion box consists of a leakage plate and a discharge plate, the discharge plate is positioned on one side away from the driving box, a filter tank is arranged at the bottom of the leakage plate, and the bottom of the discharge plate is connected with a discharge tank through a discharge pipeline; be provided with the filter screen in the filter tank, subside the device and include blending tank and settling cask, the export of filtering the jar passes through the import intercommunication of pipeline with the blending tank, the top of blending tank is provided with adds the mouth, the export of blending tank and the import intercommunication through pipeline and settling cask, the bottom of settling cask is connected with the blowdown jar through sewage pipes, the exit of settling cask passes through the access connection of pipeline and reverse osmosis membrane, be provided with the high-pressure pump on the pipeline between settling cask and the reverse osmosis membrane, the export of reverse osmosis membrane has the liquid storage pot through the pipe connection.

2. The landfill leachate treatment system of claim 1, wherein: the conveying device adopts a screw conveyer, the screw conveyer is obliquely arranged, the inlet height of the screw conveyer is lower than the outlet height, the bottommost end of the screw conveyer is provided with a backflow pipeline, and the backflow pipeline is communicated with the filter tank.

3. The landfill leachate treatment system of claim 1, wherein: an iron remover is arranged above the baffle and fixedly connected to the inner wall of the hopper.

4. The landfill leachate treatment system of claim 1, wherein: the extrusion plate is of an L-shaped structure, a vertical plate of the extrusion plate is fixedly connected to the end part of the push rod, and a transverse plate of the extrusion plate is fixedly connected to the top of the vertical plate and extends towards the direction of the push rod; the inner wall of the extrusion box is fixedly connected with a partition board matched with the extrusion plate, and the extrusion plate, the partition board, the side wall of the extrusion box and the bottom of the extrusion box jointly enclose an extrusion space.

5. The landfill leachate treatment system of claim 4, wherein: a guide plate is fixedly connected between the partition plate and the top of the extrusion box.

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