CN215327398U

CN215327398U - Landfill leachate softening treatment device

Info

Publication number: CN215327398U
Application number: CN202121280898.4U
Authority: CN
Inventors: 叶素霞; 郑佳; 蒋建龙; 陈坚; 章旭钢; 汤文静
Original assignee: Hangzhou Kangnuo Environment Technology Engineering Co ltd
Current assignee: Hangzhou Kangnuo Environment Technology Engineering Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-12-28
Anticipated expiration: 2031-06-08

Abstract

The utility model belongs to the field of garbage leachate treatment devices, and particularly relates to a garbage leachate softening treatment device. The specific technical scheme is as follows: the device comprises a treatment box body, wherein a first filter cylinder is arranged in the treatment box body, a blocking cylinder is arranged on the inner wall of the first filter cylinder in a sliding manner, the upper end of the blocking cylinder extends out of the treatment box body and is connected with a top plate arranged at the top outside the treatment box body in a sliding manner, filter holes are uniformly distributed and arranged at intervals on the circumferential side wall of the first filter cylinder, and through holes corresponding to the filter holes are uniformly distributed and arranged at intervals on the circumferential side wall of the blocking cylinder; a filter screen is fixedly arranged in the filter hole. The simple equipment structure is adopted to realize the flocculation and primary filtration process of the landfill leachate, is particularly suitable for small-scale landfill leachate treatment, and reduces the equipment cost and the equipment floor area.

Description

Landfill leachate softening treatment device

Technical Field

The utility model belongs to the field of garbage leachate treatment devices, and particularly relates to a garbage leachate softening treatment device.

Background

The landfill leachate refers to high-concentration organic wastewater which is formed by deducting the saturated water holding capacity of garbage and a soil covering layer from water contained in the garbage in a garbage landfill, rain, snow and water entering the landfill and other water and passing through the garbage layer and the soil covering layer.

At present, the membrane bioreactor + membrane advanced treatment is a common treatment process for landfill leachate, that is, the landfill leachate after anaerobic treatment enters the membrane bioreactor for membrane biochemical treatment, and the landfill leachate after membrane biochemical treatment is directly subjected to membrane advanced treatment and finally discharged. Generally, the landfill leachate after membrane biochemical treatment still contains inorganic salt ions such as calcium and magnesium, so carbonate precipitates are easily formed, and the precipitates easily pollute the membrane and cause loss of equipment and the membrane, so that the effluent quality and the recovery rate of membrane advanced treatment are reduced. The inorganic salt ions in the leachate need to be flocculated, and then the precipitates generated by flocculation are separated for multiple times, so that the processes involve multiple devices, the occupied area is large, and the treatment cost is higher for small-scale landfill leachate. Therefore, a landfill leachate softening treatment device which is suitable for small scale, high in filtration precision and simple in equipment structure is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the background art, the utility model aims to provide a refuse leachate softening treatment device.

In order to realize the purpose of the utility model, the technical proposal adopted by the utility model is as follows: the garbage leachate softening treatment device comprises a treatment box body, wherein a first filter cylinder is arranged in the treatment box body, a blocking cylinder is arranged on the inner wall of the first filter cylinder in a sliding manner, the upper end of the blocking cylinder extends out of the treatment box body and is connected with a top plate arranged at the top outside the treatment box body in a sliding manner, filter holes are uniformly distributed and arranged at intervals on the circumferential side wall of the first filter cylinder, and through holes corresponding to the filter holes are uniformly distributed and arranged at intervals on the circumferential side wall of the blocking cylinder; a filter screen is fixedly arranged in the filter hole, and a space enclosed by the first filter cartridge and the treatment box body is a flocculation area.

Preferably, a sliding groove is formed in the side wall of the top plate, a sliding block corresponding to the sliding groove is arranged on the side wall of the upper end of the blocking cylinder, a first groove is formed in the same side wall of the sliding block at the upper end of the blocking cylinder, a compression spring is fixed in the first groove, and a limiting block is fixed at the other end of the compression spring;

when the sliding block is positioned at the top end of the sliding groove, one end, far away from the compression spring, of the limiting block extends out of the first groove, and the lower surface of the limiting block abuts against the upper surface of the top plate.

Preferably, a hand rest is arranged on the side wall of the blocking cylinder and close to the top end.

Preferably, the bottom in the treatment box body is provided with a second groove corresponding to the lower end of the blocking cylinder.

Preferably, a rotating shaft is arranged in the flocculation area, two ends of the rotating shaft are respectively connected with the bottom and the top of the treatment box body through bearings, the upper end of the rotating shaft extends out of the top of the treatment box body and is fixedly connected with the output end of the motor, and a plurality of groups of stirring blades are arranged on the rotating shaft at intervals.

Preferably, a second filter cartridge is arranged in the treatment box body and outside the first filter cartridge, the space enclosed by the inner wall of the second filter cartridge, the outer wall of the first filter cartridge and the treatment box body is a filtering area, and the space enclosed by the outer wall of the second filter cartridge, the inner wall of the treatment box body and the treatment box body is a clear water area.

Preferably, at least one third filter cartridge is arranged in the processing box body and between the first filter cartridge and the second filter cartridge, and the filter pore size of the third filter cartridge is larger than that of the second filter cartridge.

Preferably, a water outlet is formed in the side wall of the treatment box body and close to the top of the treatment box body, the water outlet is connected with a water outlet pipe, and a vacuum pump is arranged on the water outlet pipe.

Preferably, just be located in the flocculation district it is provided with the agent mouth that adds that leaks hopper-shaped to handle the box top, it is connected with the pencil that adds the agent mouth, be provided with the measuring pump on the pencil to add.

Preferably, just be located in the flocculation district it is provided with first drain to handle the bottom half, just be located in the filtering area it is provided with the second drain to handle the bottom half, first drain, second drain are connected with first blow off pipe, second blow off pipe respectively, be provided with the blowoff valve on first blow off pipe, the second blow off pipe.

The utility model has the following beneficial effects:

according to the utility model, the blocking cylinder is arranged in the first filter cylinder in a sliding manner, the first filter cylinder is provided with the filtering holes, the blocking cylinder is provided with the through holes, the blocking cylinder is moved upwards or downwards, the filtering holes and the through holes are in one-to-one correspondence, the garbage leachate flows out from the flocculation area, the filtering net is arranged in the filtering holes, the filtering net has a certain interception effect on flocculation precipitation in the flocculation area, and the primary filtering effect on the garbage leachate is achieved. The device sets up a fender section of thick bamboo and first cartridge filter in same processing box, not only can carry out flocculation technology to landfill leachate, flocculation and precipitation in can also the prefiltration landfill leachate after accomplishing, adopt simple equipment structure to realize flocculation, the prefiltration technology of landfill leachate, and specially adapted small-scale landfill leachate handles, has reduced equipment cost and equipment area.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention (filter holes correspond to through holes one to one);

FIG. 2 is a schematic view of a portion A of FIG. 1;

FIG. 3 is a schematic view of a first filter cartridge according to the present invention (the first filter cartridge is expanded);

FIG. 4 is a schematic view of the overall structure of the present invention (the filter holes are staggered with respect to the through holes);

FIG. 5 is a schematic view of a portion B of FIG. 4;

fig. 6 is a schematic cross-sectional view taken along line C-C in fig. 4.

In the drawings, the reference numbers: the sewage treatment device comprises a treatment box body 1, a clean water area 3, a through hole 4, a bearing 5, a sewage valve 6, a first sewage discharge pipe 7, a second sewage discharge pipe 8, a first filter cylinder 9, a filter hole 10, a stirring blade 11, a second filter cylinder 12, a rotating shaft 13, a flocculation area 14, an additive port 15, a motor 16, a water inlet pipe 17, a filter area 18, a water outlet pipe 19, a vacuum pump 20, a blocking cylinder 21, a sliding groove 22, a hand support 23, a limiting block 24, a first groove 25, a compression spring 26, a sliding block 27 and a top plate 28.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The utility model discloses a landfill leachate softening treatment device, which comprises a treatment box body 1, wherein a first filter cylinder 9 is arranged in the treatment box body 1, a blocking cylinder 21 is arranged on the inner wall of the first filter cylinder 9 in a sliding manner, the outer side wall of the blocking cylinder 21 is attached to the inner side wall of the first filter cylinder 9, and the blocking cylinder 21 can slide up and down on the inner wall of the first filter cylinder 9. Keep off a section of thick bamboo 21 upper end and stretch out handle box 1, and with the setting be in sliding connection between the roof 28 at the outer top of handling box 1, equipartition, interval are provided with filtration pore 10 on the 9 circumference lateral walls of first cartridge filter, keep off on the 21 circumference lateral walls of a section of thick bamboo equipartition, interval be provided with filter pore 10 corresponding through-hole 4. A filter screen (not shown in fig. 1, 3 and 4, but shown in fig. 2 and 5) is fixedly arranged in the filter hole 10, and a space enclosed by the first filter cartridge 9 and the treatment tank 1 is a flocculation area 14.

It should be noted that, when the treatment tank 1 needs to flocculate the landfill leachate, the filtering holes 10 are staggered with the through holes 4, the solid part of the blocking cylinder 21 blocks the filtering holes 10, the solid part of the first filter cylinder 9 blocks the through holes 4, and at this time, the landfill leachate is stored in the flocculation zone 14 to participate in flocculation reaction; after the flocculation reaction of the landfill leachate is finished, the retaining cylinder 21 is moved upwards or downwards, so that the filtering holes 10 and the through holes 4 are in one-to-one correspondence, the landfill leachate flows out of the flocculation area 14, a filter screen is arranged in the filtering holes 10, the filter screen has a certain interception effect on the flocculation precipitation in the flocculation area 14, and the landfill leachate is primarily filtered. The device sets up a fender section of thick bamboo 21 and first cartridge filter 9 in same treatment box 1, not only can carry out flocculation technology to landfill leachate, flocculation sedimentation in can also the prefiltering landfill leachate after accomplishing, adopts simple equipment structure to realize flocculation, the prefiltration technology of landfill leachate, and specially adapted small-scale landfill leachate handles, has reduced equipment cost and equipment area.

Further, in order to accurately align the filtering holes 10 and the through holes 4, a sliding groove 22 is formed in the side wall of the top plate 28, and a sliding block 27 corresponding to the sliding groove 22 is formed in the side wall of the upper end of the blocking cylinder 21. Specifically, the length of the sliding groove 22 corresponds to the sliding distance of the blocking cylinder 21, the distance between two through holes 4 adjacent in the vertical direction on the blocking cylinder 21 is a, the length of the sliding block 27 in the sliding groove 22 is b, and then the length of the sliding groove 22 is n × a + b, where n is an integer greater than 0, 1, 2, 3, … …, and preferably, the length of the sliding groove 22 is a + b. It should be noted that the number of the sets of the sliding grooves 22 and the sliding blocks 27 is at least one, and when the number of the sets is greater than 2, the sliding grooves 22 are uniformly distributed on the side wall of the top plate 28 for stable sliding.

When the sliding block 27 slides to the lowest end in the sliding groove 22, the sliding block 27 abuts against the bottom end of the sliding groove 22, so that the sliding block 27 is limited to continuously slide downwards, and the stability of the baffle cylinder 21 in the first filter cylinder 9 is ensured. When the sliding block 27 slides in the sliding groove 22 to the highest end, in order to limit the position of the blocking cylinder 21 on the inner wall of the first filter cartridge 9, a first groove 25 is arranged at the upper end of the blocking cylinder 21 and on the same side wall of the sliding block 27, a compression spring 26 is fixed in the first groove 25, and a limiting block 24 is fixed at the other end of the compression spring 26. When the slider 27 slides to the highest end in the sliding groove 22, one side of the limiting block 24 away from the compression spring 26 loses the resisting effect of the side wall of the top plate 28, and under the effect of the compression spring 26, one end of the limiting block 24 away from the compression spring 26 slides out of the first groove 25 and the lower surface of the first groove is propped against the upper surface of the top plate 28, so that the limiting effect of the blocking cylinder 21 in the vertical direction is realized. When the limiting block 21 needs to slide downwards on the inner wall of the first filter cartridge 9, the limiting block 24 is extruded into the first groove 25, the limiting block 21 is pushed downwards, and the other end of the limiting block 24, which is far away from the compression spring 26, abuts against the side wall of the top plate 28.

Furthermore, a hand support 23 is arranged on the side wall of the retainer 21 and close to the top end, and the retainer 21 is lifted upwards or put down downwards through the hand support 23, so that the operation is convenient.

Further, when the blocking cylinder 21 slides downwards to abut against the bottom of the treatment box body 1, in order to better limit the position of the blocking cylinder 21, a second groove corresponding to the lower end of the blocking cylinder 21 is formed in the bottom of the treatment box body 1. When the retaining cylinder 21 slides downwards to the bottom end, the lower end of the retaining cylinder 21 is inserted into the second groove, it should be noted that the cross section of the second groove is slightly larger than that of the lower end of the retaining cylinder 21, and the lower end of the retaining cylinder 21 is prevented from being taken out of the second groove difficultly when the retaining cylinder 21 slides upwards.

Further, a rotating shaft 13 is arranged in the flocculation area 14, two ends of the rotating shaft 13 are respectively connected with the bottom and the top of the treatment box body 1 through bearings 5, the upper end of the rotating shaft 13 extends out of the top of the treatment box body 1 and is fixedly connected with the output end of a motor 16, and a plurality of groups of stirring blades 11 are arranged on the rotating shaft 13 at intervals. When the flocculation process is carried out, the motor 16 is started, the rotating shaft 13 drives the stirring blades 11 to start stirring the garbage leachate, so that the flocculation reaction of the garbage leachate is fully reacted, and the motor 16 is closed after the flocculation is finished.

Further, a second filter cartridge 12 is arranged in the treatment box body 1 and outside the first filter cartridge 9, the inner wall of the second filter cartridge 12, the outer wall of the first filter cartridge 9 and the space enclosed by the treatment box body 1 are a filtering area 18, and the outer wall of the second filter cartridge 12, the inner wall of the treatment box body 1 and the space enclosed by the treatment box body 1 are a clear water area 3. The flocculated landfill leachate enters the filtering area 18 after coarse filtration and enters the clear water area 3 after fine filtration by the second filter cylinder 12.

Further, in order to filter for multiple times and ensure the filtering precision of the landfill leachate so as to protect downstream equipment, at least one third filter cylinder is arranged in the treatment box body 1 and between the first filter cylinder 9 and the second filter cylinder 12, the filtering aperture of the third filter cylinder is larger than that of the second filter cylinder 12, and the filtering aperture of the first filter cylinder 9 is larger than that of the third filter cylinder.

Furthermore, a water outlet is formed in the side wall of the treatment box body 1 close to the top, the water outlet is connected with a water outlet pipe 19, and a vacuum pump 20 is arranged on the water outlet pipe 19. When the garbage leachate begins to work, the vacuum pump 20 is started, the processes of coarse filtration and multiple filtration are completed in a vacuum environment, and the effluent quality of the garbage leachate is ensured.

Further, 14 and being located in flocculation district the 1 top of processing box is provided with the agent mouth 15 that adds that leaks hopper-shaped, it is connected with the pencil that adds the agent mouth 15, be provided with the measuring pump on the pencil that adds the pencil. The flocculation area 14 is positioned at the top of the treatment tank body 1 and is provided with a water inlet which is connected with a landfill leachate inlet pipe 17.

Further, 14 in flocculation district just are located it is provided with first drain to handle 1 bottom of box, 18 in filtering area just are located it is provided with the second drain to handle 1 bottom of box, first drain, second drain are connected with first blow off pipe 7, second blow off pipe 8 respectively, be provided with blowoff valve 6 on the blow off pipe. After the filtration is finished, the blowdown valve 6 is opened, and the sediments in the flocculation zone 14 and the filtration zone 18 are discharged.

The working process of the landfill leachate softening treatment device is as follows: firstly, a flocculation process is carried out, the filtering holes 10 and the through holes 4 are staggered by pulling the retaining cylinder 21 through the hand support 23, the garbage percolate enters the flocculation area 14 through the water inlet pipe 17, the amount of the flocculant needing to participate in the reaction is added through the metering pump, the motor 16 is started, the garbage percolate is stirred by the stirring blades 11, and the garbage percolate is subjected to a flocculation reaction.

After flocculation is finished, the vacuum pump 20 is started, the baffle cylinder 21 is lifted through the hand support 23 to ensure that the filter holes 10 are aligned with the through holes 4, the landfill leachate enters the filter area 18 from the flocculation area 14 through the filter screen, the landfill leachate in the filter area 18 sequentially passes through the third filter cylinder and the second filter cylinder 12, enters the clear water area 3 after being filtered for many times, and is finally discharged through the water outlet pipe 19 to enter the next process.

After the filtration is finished, the blowoff valve is opened to discharge the sediment in the flocculation area and the filtration area.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various changes, modifications, alterations, and substitutions which may be made by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. Landfill leachate softens processing apparatus, including handling box (1), its characterized in that: a first filter cylinder (9) is arranged in the treatment box body (1), a blocking cylinder (21) is arranged on the inner wall of the first filter cylinder (9) in a sliding mode, the upper end of the blocking cylinder (21) extends out of the treatment box body (1) and is connected with a top plate (28) arranged at the outer top of the treatment box body (1) in a sliding mode, filter holes (10) are uniformly distributed and arranged at intervals on the circumferential side wall of the first filter cylinder (9), and through holes (4) corresponding to the filter holes (10) are uniformly distributed and arranged at intervals on the circumferential side wall of the blocking cylinder (21); the filter screen is fixedly arranged in the filter hole (10), and a space enclosed by the first filter cartridge (9) and the treatment box body (1) is a flocculation area (14).

2. The landfill leachate softening treatment device of claim 1, wherein: a sliding groove (22) is formed in the side wall of the top plate (28), a sliding block (27) corresponding to the sliding groove (22) is arranged on the side wall of the upper end of the blocking cylinder (21), a first groove (25) is formed in the upper end of the blocking cylinder (21) and located on the same side wall of the sliding block (27), a compression spring (26) is fixed in the first groove (25), and a limiting block (24) is fixed at the other end of the compression spring (26);

when the sliding block (27) is positioned at the top end of the sliding groove (22), one end of the limiting block (24) far away from the compression spring (26) extends out of the first groove (25), and the lower surface of the limiting block is abutted to the upper surface of the top plate (28).

3. The landfill leachate softening treatment device of claim 2, wherein: and a hand support (23) is arranged on the side wall of the retaining cylinder (21) and close to the top end.

4. The landfill leachate softening treatment device of claim 3, wherein: and a second groove corresponding to the lower end of the blocking cylinder (21) is arranged at the bottom in the treatment box body (1).

5. The landfill leachate softening treatment device of claim 1, wherein: be provided with axis of rotation (13) in flocculation district (14), axis of rotation (13) both ends pass through bearing (5) respectively with handle box (1) bottom, top and be connected, axis of rotation (13) upper end is stretched out handle box (1) top and motor (16) output fixed connection, the interval is provided with multiunit stirring vane (11) on axis of rotation (13).

6. The landfill leachate softening treatment device of claim 5, wherein: handle in box (1), first cartridge filter (9) outside and be provided with second cartridge filter (12), second cartridge filter (12) inner wall, first cartridge filter (9) outer wall with the space that handles box (1) and enclose is filtering area (18), second cartridge filter (12) outer wall, handle box (1) inner wall with the space that handles box (1) and enclose is clear water district (3).

7. The landfill leachate softening treatment device of claim 6, wherein: and at least one third filter cartridge is arranged in the treatment box body (1) and between the first filter cartridge (9) and the second filter cartridge (12), and the filter pore size of the third filter cartridge is larger than that of the second filter cartridge (12).

8. The landfill leachate softening treatment device of claim 1, wherein: the water outlet is formed in the side wall of the treatment box body (1) and close to the top, the water outlet is connected with a water outlet pipe (19), and a vacuum pump (20) is arranged on the water outlet pipe (19).

9. The landfill leachate softening treatment device of claim 1, wherein: just be located in flocculation district (14) handle box (1) top and be provided with hopper-shaped agent mouth (15) that adds, it is connected with the pencil that adds agent mouth (15), be provided with the measuring pump on the pencil that adds.

10. The landfill leachate softening treatment device of claim 6, wherein: the sewage treatment device is characterized in that a first sewage draining port is formed in the bottom of the treatment box body (1) and is located in the flocculation area (14), a second sewage draining port is formed in the bottom of the treatment box body (1) and is located in the filtering area (18), the first sewage draining port and the second sewage draining port are respectively connected with a first sewage draining pipe (7) and a second sewage draining pipe (8), and sewage draining valves are arranged on the first sewage draining pipe (7) and the second sewage draining pipe (8).