CN218786544U

CN218786544U - Heavy metal ion precipitation device for landfill leachate

Info

Publication number: CN218786544U
Application number: CN202222969156.3U
Authority: CN
Inventors: 魏彦崇; 杨智
Original assignee: Guangdong Xinwanjiang Ecological Environment Technology Co ltd
Current assignee: Guangdong Xinwanjiang Ecological Environment Technology Co ltd
Priority date: 2022-07-04
Filing date: 2022-11-08
Publication date: 2023-04-04
Anticipated expiration: 2032-11-08

Abstract

The utility model discloses a heavy metal ion deposits device for landfill leachate, including the device main tank body, welded fastening has same W font baffle on the front side inner wall of device main tank body, rear side inner wall, left side inner wall and the right side inner wall, the top fixed mounting of W font baffle has one and device main tank body front and back side inner wall fixed mounting's mounting box. The utility model discloses when stirring the puddler that inside medicament and the sewage utilization rotary drum of sedimentation chamber drove its outside, the puddler still stirs the inside medicament and the sewage of sedimentation chamber from the commentaries on classics this moment, thereby stirring efficiency has been improved, can also in addition when sediment row material pipe blow off water, it shakes about driving the filter screen to carry out continuous, thereby can be better to sediment row material pipe exhaust sewage filter, very big reduction the phenomenon that the filter screen took place to block up, can satisfy the user demand.

Description

Heavy metal ion precipitation device for landfill leachate

Technical Field

The utility model relates to a landfill leachate handles technical field, especially relates to a heavy metal ion deposits device for landfill leachate.

Background

The landfill leachate refers to sewage formed by leaching water generated by decomposing organic substances in the garbage and free water, precipitation, infiltrated underground water and the like in the garbage in the landfill and stacking process, and when the humidity of a garbage stack body exceeds the water holding capacity of the garbage stack body, inorganic pollutants such as suspended or dissolved organic pollutants, heavy metals and the like in the garbage stack body are dissolved out together, so that the leachate is generated; the leachate treatment is the last link of the sanitary landfill, and if the strict standard requirement is not high, the leachate treatment not only brings immeasurable pollution and harm to the surrounding environment and brings threat to human health, but also brings loss of the original meaning of the sanitary landfill.

Through retrieval, the authorized notice number CN214829560U discloses a heavy metal ion precipitation device for landfill leachate, which comprises a left precipitation space and a right precipitation space, wherein the precipitation space comprises a pretreatment cavity and a precipitation cavity, a filter screen is arranged in the middle of a collection cavity below the precipitation space, a pretreatment dosing device and a precipitation dosing device are arranged outside the pretreatment cavity and the precipitation cavity, a stirring motor is arranged in the precipitation cavity, and output shafts at two ends of the stirring motor drive stirrers at two sides to operate and stir through a one-way bearing, a driving gear and a driven gear respectively; the device solves the problems that two independent stirring devices are arranged in a stirring link to respectively stir filtrate and liquid medicine in two independent filtrate channels, the manufacturing cost of equipment is high, and the two power driving devices are difficult to independently control and operate.

Above-mentioned patent still exists some not enoughly, and the stirring of the inside sewage of sedimentation chamber and medicament can only carry out the stirring of unidirectional side for the inefficiency of stirring, and adopt fixed filter screen, its long-time easy emergence of using blocks up, to above problem, we have provided a heavy metal ion precipitation device for landfill leachate for this reason.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a heavy metal ion precipitation device for landfill leachate.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a heavy metal ion precipitation device for landfill leachate comprises a device main box body, wherein the same W-shaped partition plate is welded and fixed on the front inner wall, the rear inner wall, the left inner wall and the right inner wall of the device main box body, the top of the W-shaped partition board is fixedly provided with a mounting box fixedly arranged with the inner walls of the front side and the rear side of the main box body of the device, a vertical clapboard fixedly arranged with the inner walls at the front side and the rear side of the main box body of the device is welded and fixed between the top of the mounting box and the inner wall at the top of the main box body of the device, a V-shaped clapboard fixedly arranged with the inner walls of the front side and the rear side of the main box body of the device is welded and fixed between the left side of the vertical clapboard and the inner wall of the left side of the main box body of the device and between the right side of the vertical clapboard and the inner wall of the right side of the main box body of the device, the same filter screen is slidably sleeved among the front inner wall, the rear inner wall, the left inner wall and the right inner wall of the main box body of the device, a double-shaft motor is fixedly arranged between the front inner wall and the rear inner wall of the mounting box, two output shafts of the double-shaft motor respectively extend to the outer side of the mounting box and are fixedly sleeved with a stirring mechanism, the inner walls of the left side and the right side of the main box body of the device are both fixedly provided with an elastic driving mechanism matched with the stirring mechanism, two output shafts of the double-shaft motor are fixedly sleeved with eccentric wheels, the bottom of each eccentric wheel is movably contacted with an elastic guide mechanism for driving the filter screen to move up and down, the top of the main box body of the device is fixedly communicated with a pretreatment feeding branch pipe, the bottom of the V-shaped clapboard is fixedly communicated with a pretreatment discharging pipe, the bottom of the W-shaped partition board is fixedly communicated with two sedimentation discharge pipes, and the bottom of the main box body of the device is fixedly communicated with a discharge pipe.

As a further preferred aspect of the present invention: rabbling mechanism includes rotary drum, circular seal cover, connecting rod, a plurality of straight-teeth gear and a plurality of puddler, the fixed suit of circular seal cover is in the output shaft outside of biaxial motor, the fixed suit of rotary drum is in the outside that corresponds circular seal cover, and the top and the bottom of rotary drum rotate the installation with the puddler that corresponds respectively, biaxial motor's output shaft extends to in corresponding the rotary drum and with connecting rod welded fastening, the fixed suit of straight-teeth gear is close to the one end that corresponds the biaxial motor output shaft in the puddler.

As further preferable in the present technical solution: elastic drive mechanism includes connecting block, first spring and two racks, two of telescopic link, cylindrical structure the telescopic link welded fastening respectively in the left side inner wall and the right side inner wall of device main tank body, the telescopic link is kept away from the one end that corresponds device main tank body inner wall extend to in the rotary drum and with connecting block welded fastening, and the rotary drum is sealed to rotate the suit in the outside of telescopic link, and one side that corresponds the telescopic link was kept away from to the connecting block sets up to the slope cross-section to cooperate with the connecting rod roll, first spring suit is in the outside of telescopic link, first spring welded fastening corresponds between the inner wall of connecting block and rotary drum, the lateral wall fixed cover of connecting block is equipped with the erection bearing, two the rack bonds respectively and is fixed in top and the bottom that corresponds the erection bearing outer lane, the front side of rack meshes with the rear side that corresponds the straight-teeth gear mutually.

As further preferable in the present technical solution: the elastic guide mechanism comprises a T-shaped plate and a second spring, the top of the T-shaped plate is attached to the bottom of the corresponding eccentric wheel, the bottom of the T-shaped plate is welded and fixed with the top of the filter screen, the second spring is sleeved outside the corresponding T-shaped plate, the second spring is welded and fixed between the inner wall of the top of the T-shaped plate and the inner wall of the bottom of the mounting box, and the mounting box and the W-shaped partition plate are slidably sleeved with the two T-shaped plates.

As further preferable in the present technical solution: the inner chamber top of device owner box is separated for two sedimentation spaces through erecting baffle and W font baffle, and the sedimentation space is separated for preliminary treatment chamber and the sedimentation chamber that is located V font baffle below through V font baffle.

As further preferable in the present technical solution: and an elastic rubber sleeve is sleeved on the outer side of the T-shaped plate and is fixedly bonded between the bottom of the W-shaped partition plate and the top of the filter screen.

As further preferable in the present technical solution: supporting legs are welded and fixed at four corners of the bottom of the main box body of the device.

As further preferable in the present technical solution: electric control valves are fixedly mounted at the pipe orifices of the pretreatment discharge pipe, the precipitation discharge pipe and the discharge pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses when the puddler to the inside medicament of sedimentation chamber and the utilization of sewage rotary drum drive its outside stirs, the puddler is still from changeing to stir sedimentation chamber inside medicament and sewage this moment, thereby stirring efficiency has been improved, can also arrange the material pipe when blow off water in the sediment in addition, it shakes about driving the filter screen to carry out continuous, thereby can be better arrange the material pipe exhaust sewage to the sediment and filter, very big reduction the phenomenon that the filter screen took place to block up, can satisfy the user demand.

Drawings

FIG. 1 is a sectional view of the heavy metal ion precipitation device for landfill leachate according to the present invention;

FIG. 2 is an enlarged view of the structure of the area A in FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the structure of the area B in FIG. 1 according to the present invention;

fig. 4 is the utility model provides a heavy metal ion deposits device's for landfill leachate structure elevation.

In the figure: 1. a device main box body; 2. a W-shaped partition plate; 3. mounting a box; 4. a vertical partition plate; 5. a V-shaped partition plate; 6. a filter screen; 7. a double-shaft motor; 8. a drum; 9. a circular seal cartridge; 10. a telescopic rod; 11. connecting blocks; 12. a first spring; 13. a connecting rod; 14. a rack; 15. a spur gear; 16. a stirring rod; 17. an eccentric wheel; 18. a T-shaped plate; 19. a second spring; 20. pretreating a feeding branch pipe; 21. pre-treating a discharge pipe; 22. a sediment discharge pipe; 23. a discharge pipe; 24. an elastic rubber sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a heavy metal ion precipitation device for landfill leachate comprises a device main box body 1, wherein supporting legs are welded and fixed at four corners of the bottom of the device main box body 1, a mounting box 3 fixedly mounted with the inner walls of the front and the rear sides of the device main box body 1 is welded and fixed at the top of a W-shaped partition 2,W-shaped partition 2 on the inner walls of the front and the rear sides of the device main box body 1, a vertical partition 4 fixedly mounted with the inner walls of the front and the rear sides of the device main box body 1 is welded and fixed between the top of the mounting box 3 and the inner wall of the top of the device main box body 1, a V-shaped partition 5 fixedly mounted with the inner walls of the front and the rear sides of the device main box body 1 is welded and fixed between the left side of the vertical partition 4 and the inner wall of the left side of the device main box body 1 and between the right side of the vertical partition 4 and the inner wall of the device main box body 1, the device comprises a device main box body 1, an inner cavity of the device main box body 1 is divided into two sedimentation spaces by a vertical partition plate 4 and a W-shaped partition plate 2, the sedimentation spaces are divided into a pretreatment cavity and a sedimentation cavity below the V-shaped partition plate 5 by the V-shaped partition plate 5, a same filter screen 6 is sleeved between the front inner wall and the rear inner wall of the device main box body 1 in a sliding mode, a double-shaft motor 7 is fixedly installed between the front inner wall and the rear inner wall of a mounting box 3, two output shafts of the double-shaft motor 7 respectively extend to the outer side of the mounting box 3 and are fixedly sleeved with a stirring mechanism, a first bearing mounting hole is formed in each of the left inner wall and the right inner wall of the mounting box 3, a first sealing bearing fixedly sleeved with the outer side of an output shaft of the double-shaft motor 7 is fixedly bonded on the inner side wall of the first bearing mounting hole, and the stirring mechanism comprises a rotary drum 8, the device comprises a circular sealing sleeve 9, a connecting rod 13, a plurality of spur gears 15 and a plurality of stirring rods 16, wherein the circular sealing sleeve 9 is fixedly sleeved outside an output shaft of the double-shaft motor 7, a rotary drum 8 is fixedly sleeved outside the corresponding circular sealing sleeve 9, the top and the bottom of the rotary drum 8 are respectively rotatably installed with the corresponding stirring rods 16, second bearing installation holes matched with the corresponding stirring rods 16 are formed in the top and the bottom of the rotary drum 8, a second sealing bearing which is fixedly sleeved with the outer side of the corresponding stirring rod 16 in a bonding mode is fixedly arranged on the inner side wall of each second bearing installation hole in a bonding mode, an output shaft of the double-shaft motor 7 extends into the corresponding rotary drum 8 and is fixedly welded with the connecting rod 13, and the spur gear 15 is fixedly sleeved at one end, close to the output shaft of the corresponding double-shaft motor 7, of the stirring rod 16;

an elastic driving mechanism matched with a connecting rod 13 is fixedly arranged on the inner wall of the left side and the inner wall of the right side of the device main box body 1, the elastic driving mechanism comprises a telescopic rod 10, a connecting block 11 with a cylindrical structure, a first spring 12 and two racks 14, the two telescopic rods 10 are respectively welded and fixed on the inner wall of the left side and the inner wall of the right side of the device main box body 1, wherein the telescopic rod 10 comprises a first rectangular outer tube welded and fixed with the corresponding side wall of the device main box body 1, a first rectangular inner rod is slidably sleeved inside the first rectangular outer tube, one end of the first rectangular inner rod, far away from the corresponding inner wall of the device main box body 1, extends into a rotary drum 8 and is welded and fixed with the connecting block 11, the rotary drum 8 is hermetically and rotatably sleeved on the outer side of the first rectangular outer tube, wherein a third bearing mounting hole is arranged at the central position of one side of the rotary drum 8, far away from the double-shaft motor 7, a third sealing bearing which is fixedly sleeved with the outer side of the first rectangular outer pipe in a bonding mode is fixedly bonded on the inner side wall of the third bearing mounting hole, one side, far away from the side corresponding to the first rectangular inner rod, of the connecting block 11 is provided with an inclined cross section and is matched with the connecting rod 13 in a rolling mode, a ball is movably embedded at one end, matched with the inclined cross section of the connecting block 11, of the connecting rod 13, the connecting rod 13 is matched with the inclined cross section of the connecting block 11 in a rolling mode through the ball, the first spring 12 is sleeved on the outer side of the first rectangular inner rod in a sleeving mode, the first spring 12 is fixedly welded between the corresponding connecting block 11 and the inner wall, far away from the double-shaft motor 7, of the rotary drum 8, a mounting bearing is fixedly sleeved on the outer side wall of the connecting block 11, the two racks 14 are fixedly bonded on the top and the bottom of the outer ring of the corresponding mounting bearing respectively, and the front sides of the racks 14 are meshed with the rear sides of the corresponding straight gears 15;

two output shafts of the double-shaft motor 7 are fixedly sleeved with eccentric wheels 17, the bottom of each eccentric wheel 17 is movably contacted with an elastic guide mechanism used for driving the filter screen 6 to move up and down, each elastic guide mechanism comprises a T-shaped plate 18 and a second spring 19, the top of each T-shaped plate 18 is attached to the bottom of the corresponding eccentric wheel 17, the bottom of each T-shaped plate 18 is welded and fixed with the top of the filter screen 6, each second spring 19 is sleeved on the outer side of the corresponding T-shaped plate 18, each second spring 19 is welded and fixed between the inner wall of the top of each T-shaped plate 18 and the inner wall of the bottom of the mounting box 3, an elastic rubber sleeve 24 is sleeved on the outer side of each T-shaped plate 18, each elastic rubber sleeve 24 is bonded and fixed between the bottom of the W-shaped partition plate 2 and the top of the filter screen 6, two first sliding mounting holes which are slidably sleeved on the outer side of the corresponding T-shaped plate 18 are formed in the inner wall of the bottom of the mounting box 3, and two second sliding mounting holes which are slidably sleeved on the outer side of the corresponding T-shaped partition plate 18 are formed in the top of the W-shaped partition plate 2;

the fixed intercommunication in top of device main tank body 1 has preliminary treatment feeding branch pipe 20, and preliminary treatment feeding branch pipe 20 is the font structure of falling Y to be linked together with two preliminary treatment chambeies simultaneously, and the fixed intercommunication in bottom of V font baffle 5 has preliminary treatment row material pipe 21, and the fixed intercommunication in bottom of W font baffle 2 has two sediment row material pipe 22 that are linked together with corresponding precipitation chamber, and the fixed intercommunication in bottom of device main tank body 1 has row material pipe 23, and row material pipe 21 is arranged in the preliminary treatment, and the equal fixed mounting in mouth of pipe department of sediment row material pipe 22 and row material pipe 23 has automatically controlled valve, the utility model discloses when utilizing puddler 16 that rotary drum 8 drove its outside to medicament and sewage to precipitation intracavity portion stirs, puddler 16 still spin at this moment is changeed and is stirs the medicament and sewage of precipitation intracavity portion, thereby has improved stirring efficiency, can also when sediment pipe 22 blew water in addition, drive filter screen 6 and shake from top to bottom constantly, thereby can be better arrange the row material pipe 22 discharge to the sediment and filter, very big reduction screen 6 takes place the phenomenon of jam, can satisfy the user demand.

The working principle is as follows: when in use, the front side of the main box body 1 of the device is provided with a motor control switch for controlling the start and the close of the double-shaft motor 7 and a valve control switch for controlling the electric control valve, and the electric control valve on the precipitation and discharge pipe 22 is in a close state;

firstly, sewage and a medicament are injected into a left pretreatment cavity and a right pretreatment cavity through a pretreatment feeding branch pipe 20, then the medicament and the sewage in the pretreatment cavities flow into corresponding precipitation cavities through corresponding pretreatment discharging pipes 21, then a worker controls a double-shaft motor 7 to start through a motor control switch, the double-shaft motor 7 drives a corresponding circular sealing sleeve 9, an eccentric wheel 17 and a connecting rod 13 to rotate through an output shaft, the circular sealing sleeve 9 drives a corresponding rotary drum 8 to rotate, so that the rotary drum 8 rotates on the outer side of a corresponding first rectangular outer pipe, the rotary drum 8 drives a corresponding stirring rod 16 to rotate, the connecting rod 13 rotates the connecting rod 13 of the first half circle to push the connecting block 11 to move towards the direction close to the corresponding telescopic rod 10 under the matching of the inclined section of the connecting block 11, the connecting block 11 drives the corresponding rack 14 to move towards the direction close to the telescopic rod 10 through the mounting bearing, the rack 14 drives the stirring rod 16 to rotate automatically through meshing with the straight gear 15, when the connecting block 11 moves towards the direction of the telescopic rod 10, the corresponding telescopic rod 10 can be shortened and the first spring 12 can be compressed, when the connecting rod 13 rotates for the second half circle, the connecting rod 13 releases the extrusion force on the connecting block 11, the first spring 12 can drive the connecting block 11 to move towards the direction far away from the telescopic rod 10 and enable the telescopic rod 10 to extend, and the stirring rod 16 rotates continuously along with the rotation of the connecting rod 13, so that the stirring rod 16 rotates circularly in the forward and reverse directions automatically, and the stirring rod 16 outside the rotating cylinder 8 is driven to stir the medicine, so that the stirring efficiency is high;

in addition, when the eccentric wheel 17 rotates the first half circle, the eccentric wheel 17 can push the T-shaped plate 18 to move downwards and compress the second spring 19, the two T-shaped plates 18 drive the filter screen 6 to move downwards together, when the eccentric wheel 17 rotates the second half circle, the eccentric wheel 17 can release the downward thrust on the T-shaped plate 18, the second spring 19 in the compression state drives the filter screen 6 to move upwards through the T-shaped plate 18, along with the continuous rotation of the eccentric wheel 17, the filter screen 6 can shake up and down circularly, after the reaction of the medicament in the sedimentation chamber and the sewage is completed, the double-shaft motor 7 continues to be in the starting state, then the electric control valve on the sedimentation discharge pipe 22 is opened by using the valve control switch, the sewage discharged by the sedimentation discharge pipe 22 is filtered by the filter screen 6 which shakes up and down circularly, the filtered sewage is filtered, and finally discharged through the discharge pipe 23.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a heavy metal ion deposits device for landfill leachate, includes device main tank body (1), welded fastening has same W font baffle (2) on front side inner wall, rear side inner wall, left side inner wall and the right side inner wall of device main tank body (1), the top fixed mounting of W font baffle (2) have one with device main tank body (1) front and back side inner wall fixed mounting's mounting box (3), welded fastening has one with device main tank body (1) front and back side inner wall fixed mounting's perpendicular baffle (4) between the top of mounting box (3) and the top inner wall of device main tank body (1), erect between the left side of baffle (4) and the left side inner wall of device main tank body (1) and between the right side inner wall of the right side of perpendicular baffle (4) and device main tank body (1) all welded fastening have one with device main tank body (1) front and back side inner wall fixed mounting's V font baffle (5), its characterized in that it is equipped with device main tank body (1) front and back side inner wall fixed mounting box (6) sliding fastening mechanism, the front side inner wall of device main tank body (1) and rear side inner wall (3) are equipped with the two motor drive mechanism, the inner wall (7) and the inner wall of stirring mechanism that the front side inner wall (3) and the stirring mechanism that the stirring is equipped with the right side inner wall (7) extend to be equipped with the two motor fixing mechanism respectively, two output shafts of biax motor (7) are all fixed the cover and are equipped with eccentric wheel (17), the bottom movable contact of eccentric wheel (17) has one to be used for driving the elasticity guiding mechanism that filter screen (6) reciprocated, the fixed intercommunication in top of device case (1) has preliminary treatment feeding branch pipe (20), the fixed intercommunication in bottom of V font baffle (5) has the preliminary treatment to arrange material pipe (21), the fixed intercommunication in bottom of W font baffle (2) has two to deposit row material pipe (22), the fixed intercommunication in bottom of device case (1) has row material pipe (23).

2. The heavy metal ion precipitation device for landfill leachate according to claim 1, characterized in that, the rabbling mechanism includes rotary drum (8), circular seal cover (9), connecting rod (13), a plurality of spur gear (15) and a plurality of puddler (16), the fixed suit of circular seal cover (9) is in the output shaft outside of double-shaft motor (7), the fixed suit of rotary drum (8) is in the outside that corresponds circular seal cover (9), and the top and the bottom of rotary drum (8) rotate the installation with corresponding puddler (16) respectively, the output shaft of double-shaft motor (7) extend to correspond in rotary drum (8) and with connecting rod (13) welded fastening, the fixed suit of spur gear (15) is in puddler (16) near the one end that corresponds double-shaft motor (7) output shaft.

3. The heavy metal ion precipitation device for landfill leachate according to claim 2, characterized in that, elastic drive mechanism includes telescopic link (10), connecting block (11), first spring (12) and two racks (14) of cylindrical structure, two telescopic link (10) welded fastening respectively in the left side inner wall and the right side inner wall of device main tank (1), telescopic link (10) keep away from the one end that corresponds device main tank (1) inner wall extend to in rotary drum (8) and with connecting block (11) welded fastening, and rotary drum (8) seal rotation suit is in the outside of telescopic link (10), one side that corresponds telescopic link (10) was kept away from to connecting block (11) sets up to the slope cross-section to with connecting rod (13) roll fit, first spring (12) suit is in the outside of telescopic link (10), first spring (12) welded fastening is between the inner wall that corresponds connecting block (11) and rotary drum (8), the lateral wall fixed suit of connecting block (11) is equipped with the installation bearing, two racks (14) are bonded fastening respectively in the top and the bottom that corresponds the installation bearing, the front side of outer lane (14) corresponds the meshing with straight-tooth wheel (15).

4. The heavy metal ion precipitation device for landfill leachate according to claim 1, wherein the elastic guide mechanism comprises a T-shaped plate (18) and a second spring (19), the top of the T-shaped plate (18) is attached to the bottom of the corresponding eccentric wheel (17), the bottom of the T-shaped plate (18) is welded and fixed with the top of the filter screen (6), the second spring (19) is sleeved outside the corresponding T-shaped plate (18), the second spring (19) is welded and fixed between the inner wall of the top of the T-shaped plate (18) and the inner wall of the bottom of the mounting box (3), and the mounting box (3) and the W-shaped partition plate (2) are both slidably sleeved with the two T-shaped plates (18).

5. The heavy metal ion precipitation device for landfill leachate according to claim 1, wherein the upper part of the inner chamber of the main tank body (1) of the device is divided into two precipitation spaces by a vertical partition plate (4) and a W-shaped partition plate (2), and the precipitation spaces are divided into a pretreatment chamber and a precipitation chamber below the V-shaped partition plate (5) by a V-shaped partition plate (5).

6. The heavy metal ion precipitation device for landfill leachate according to claim 4, wherein the outside of the T-shaped plate (18) is sleeved with an elastic rubber sleeve (24), and the elastic rubber sleeve (24) is adhesively fixed between the bottom of the W-shaped partition plate (2) and the top of the filter screen (6).

7. The heavy metal ion precipitation device for landfill leachate according to claim 1, wherein four corners of the bottom of the main tank (1) of the device are welded and fixed with supporting legs.

8. The heavy metal ion precipitation device for landfill leachate according to claim 1, wherein the electric control valves are fixedly installed at the pipe openings of the pretreatment discharging pipe (21), the precipitation discharging pipe (22) and the discharging pipe (23).