CN219630750U - Bag filter for landfill leachate - Google Patents
Bag filter for landfill leachate Download PDFInfo
- Publication number
- CN219630750U CN219630750U CN202320713187.4U CN202320713187U CN219630750U CN 219630750 U CN219630750 U CN 219630750U CN 202320713187 U CN202320713187 U CN 202320713187U CN 219630750 U CN219630750 U CN 219630750U
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- China
- Prior art keywords
- tank body
- pipe
- jar body
- bag filter
- outer tank
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- 239000000149 chemical water pollutant Substances 0.000 title claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 239000010802 sludge Substances 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 17
- 239000010865 sewage Substances 0.000 abstract description 13
- 238000007599 discharging Methods 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 6
- 239000013049 sediment Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 238000004062 sedimentation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model relates to a bag filter for landfill leachate, which comprises an outer tank body and an inner filter tank body, wherein the outer tank body is arranged on a supporting frame, the upper end of the outer tank body is provided with a liquid inlet pipe, the lower end of the outer tank body is provided with a drain pipe, the inner filter tank body is arranged in the outer tank body, a cavity is formed between the outer tank body and the inner filter tank body, a plurality of meshes are arranged on the side wall of the inner filter tank body, the drain pipe is communicated with the cavity, the upper end of the inner filter tank body is communicated with the liquid inlet pipe, the lower end of the inner filter tank body is provided with a mud discharge pipe, and the mud discharge pipe extends out of the outer tank body. The mesh of the inner filtering tank body can filter suspended matters, large-particle sediment, fibrous matters and other impurities in the percolate, so that the impurities are left in the inner filtering tank body and discharged through a mud discharging pipe, the filtered percolate flows out through a drain pipe at the lower end of the outer tank body, the quality of sewage is effectively improved, the water inlet requirement of a sewage treatment station is met, and the problems that shutdown is caused by blocking a drum grid due to overlarge impurity content of the percolate and the sewage treatment is environment-friendly are solved.
Description
Technical Field
The utility model relates to the technical field of garbage treatment, in particular to a bag filter for garbage leachate.
Background
In the process of collecting, treating and disposing the household garbage, garbage percolate can be generated due to physical, biological and chemical actions such as compaction, fermentation and the like. The landfill leachate of the sewage treatment station in the prior art generally adopts: the treatment process comprises a rotary drum grid, a primary sedimentation tank, a regulating tank, an anaerobic reactor, an anaerobic effluent sedimentation tank, a two-stage A (anoxic)/0 (aerobic) membrane bioreactor and an NF+RO membrane treatment system.
In daily operation, the problem that the primary sedimentation tank is more and more in sediment and the effective space is smaller and more serious is found that the drum grating of the sewage treatment station is often blocked to cause water bleeding, and the drum grating is stopped and sewage overflows for a plurality of times, so that the treatment effect of garbage leachate is affected and the environmental protection problem is caused. The main reason is that suspended matters, sediment, fibrous matters and other impurities exist in the percolate tanks among the channels, the particles are large and large, and if the impurities are not removed before entering the regulating tank, the problem exists for a long time, so that the normal operation of the sewage treatment station is seriously affected.
Disclosure of Invention
The utility model provides a bag filter for landfill leachate, which aims at solving the problem that impurities such as suspended matters, silt and the like exist in leachate in the prior art and influence the normal work of a sewage treatment station.
The technical scheme for solving the technical problems is as follows: the utility model provides a bag filter for landfill leachate, includes outer jar body and interior filtration jar body, outer jar body is installed on the support frame, the upper end of outer jar body is equipped with the feed liquor pipe, and the lower extreme is equipped with the drain pipe, interior filtration jar body sets up in the outer jar body, outer jar body with be formed with the cavity between the interior filtration jar body, be equipped with a plurality of meshes on the lateral wall of interior filtration jar body, the drain pipe with the cavity intercommunication, the upper end of interior filtration jar body with the feed liquor pipe intercommunication, the lower extreme is equipped with the mud pipe, the mud pipe stretches out outer jar body.
On the basis of the technical scheme, the utility model can also make the following improvements for the technical scheme in order to achieve the convenience of use and the stability of equipment:
preferably, the lower end of the inner filtering tank body is provided with a V-shaped mud discharging connecting pipe, and the inner filtering tank body is communicated with the mud discharging pipe through the V-shaped mud discharging connecting pipe.
Preferably, the upper end of the inner filtering tank body is provided with a fixing flange, the outer tank body is internally provided with a supporting flange, the supporting flange is positioned below the liquid inlet pipe, and the fixing flange is in sealing connection with the supporting flange.
Preferably, a rib plate is arranged in the outer tank body, and the rib plate is connected with the support flange.
Preferably, a cover plate is arranged at the upper end of the outer tank body, a transition cavity is formed between the cover plate and the support flange, an overflow pipe is arranged on the cover plate, and the overflow pipe is communicated with the transition cavity.
Preferably, a hand hole is formed in the cover plate, and the hand hole is communicated with the transition cavity.
Preferably, the lower end of the outer tank body is provided with a conical cylinder body, and the drain pipe is arranged on the side wall of the conical cylinder body.
Preferably, the support frame comprises a support seat and channel steel, wherein the support seat is installed on the channel steel, and the outer tank body is installed on the support seat.
Preferably, the material of the inner filtering tank body is stainless steel, and the diameter of the mesh is a, and a is more than 0 and less than or equal to 3mm.
The beneficial effects of the utility model are as follows: the mesh of the inner filtering tank body can filter suspended matters, large-particle sediment, fibrous matters and other impurities in the percolate, so that the impurities are left in the inner filtering tank body and discharged through a mud discharging pipe, filtered percolate flows out through a drain pipe at the lower end of the outer tank body, the quality of sewage is effectively improved, the water inlet requirement of a sewage treatment station is met, the problems that the shutdown and the sewage treatment is not up to standard due to the blocking of a rotary drum grid due to the overlarge impurity content of the percolate are solved, and meanwhile, the volume of a sedimentation tank and an adjusting tank is guaranteed, and the increasingly severe environment protection requirement is met.
Drawings
FIG. 1 is a schematic view of a bag filter of the present utility model;
fig. 2 is a schematic view of the bag filter of the present utility model in use.
The reference numerals are recorded as follows: 1. a hand hole; 2. a liquid inlet pipe; 3. an outer can; 4. an inner filter tank; 5. a support base; 6. a mud pipe; 7. channel steel; 8. a drain pipe; 9. a cover plate; 10. a support flange; 11. rib plates; 12. an overflow pipe; 13. v-shaped mud discharging connecting pipe; 14. a transition chamber; 15. a percolating tank; 16. a submersible sewage pump; 17. a stirrer; 18. a drum grid; 19. and (5) an adjusting pool.
Detailed Description
In the description of the present utility model, it should be understood that the directions or positional relationships indicated in the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
As shown in fig. 1 and 2, the utility model discloses a bag filter for landfill leachate, which comprises an outer tank body 3 and an inner filter tank body 4, wherein the outer tank body 3 is arranged on a supporting frame, the upper end of the outer tank body 3 is provided with a liquid inlet pipe 2, the lower end of the outer tank body is provided with a drain pipe 8, the inner filter tank body 4 is arranged in the outer tank body 3, a cavity is formed between the outer tank body 3 and the inner filter tank body 4, the cavity is a passage for the filtered leachate to circulate, a plurality of meshes are arranged on the side wall of the inner filter tank body 4, the meshes are uniformly arranged along the circumferential direction of the inner filter tank body 4, the filtering effect is ensured, the drain pipe 8 is communicated with the cavity, the upper end of the inner filter tank body 4 is communicated with the liquid inlet pipe 2, the lower end of the inner filter tank body 4 is provided with a mud discharge pipe 6, the mud discharge pipe 6 extends out of the outer tank body 3, and the mud discharge pipe 6 timely discharges impurities in the inner filter tank body 4.
The mud discharging pipe 6 is provided with a valve, so that impurities in the inner filtering tank body 4 can be discharged periodically.
The lower extreme of the inner filter tank body 4 is provided with a V-shaped sludge discharge connecting pipe 13, a plurality of meshes are uniformly arranged on the side wall of the V-shaped sludge discharge connecting pipe 13, the filtering effect of percolate is further improved, the content of the percolate in impurities is reduced, and the inner filter tank body 4 is communicated with the sludge discharge pipe 6 through the V-shaped sludge discharge connecting pipe 13. The V-shaped sludge discharge connecting pipe 13 has an aggregation effect on impurities, so that the impurities are discharged through the sludge discharge pipe 6 more smoothly.
The upper end welding of the inner filter tank body 4 has a fixed flange, be equipped with support flange 10 in the outer tank body 3, support flange 10 is located the below of feed liquor pipe 2, fixed flange with support flange 10 sealing connection, after fixed flange and support flange 10 crisscross setting, fixed flange with be equipped with rubber seal between the support flange 10, make the filtration liquid totally get into the inner filter tank body 4 and filter, avoid unfiltered filtration liquid to flow into in the cavity and influence the filter effect.
The rib plates 11 are arranged in the outer tank body 3, the rib plates 11 are connected with the support flange 10, the cross sections of the rib plates 11 are triangular, the rib plates 11 are welded with the lower ends of the support flange 10, the support strength of the support flange 10 is increased, the support effect on the inner filter tank body 4 is improved, and the inner filter tank body 4 is stably arranged in the outer tank body 3.
The upper end of the outer tank body 3 is provided with a cover plate 9, the outer tank body 3 is sealed, peculiar smell is reduced and dispersed, the environment-friendly requirement is guaranteed to be met, a transition cavity 14 is formed between the cover plate 9 and the support flange 10, an overflow pipe 12 is arranged on the cover plate 9, the overflow pipe 12 is communicated with the transition cavity 14, and when the inner filtering tank body 4 breaks down, redundant percolate returns to the percolating pond 15 or other collecting devices through the overflow pipe 12.
The cover plate 9 is provided with a hand hole 1, the hand hole 1 is communicated with the transition cavity 14, and the hand hole 1 is provided with a hand hole cover. The inner filtering tank body 4 is convenient to maintain by arranging the hand hole 1, so that the convenience of maintenance is improved.
The lower end of the outer tank body 3 is provided with a conical cylinder body, and the drain pipe 8 is arranged on the side wall of the conical cylinder body. The filtered percolate is discharged in time through a drain pipe 8, and at least one drain pipe 8 is arranged.
The support frame includes supporting seat 5 and channel-section steel 7, outer jar body 3 is installed on the supporting seat 5, specifically, outer jar body 3 welding or through the bolt fastening on supporting seat 5, supporting seat 5 passes through the bolt to be installed on channel-section steel 7, guarantee the stability of outer jar body 3 installation.
The material of the inner filtering tank body 4 is stainless steel, the inner filtering tank body 4 is made of SUS304 stainless steel plates with the thickness of 2mm, the diameter of the mesh is a, a is more than 0 and less than or equal to 3mm, and is preferably 1mm-3mm, so that the filtering effect on percolate is ensured.
The working process of the utility model is as follows:
the percolate in the percolating tank 15 is conveyed to the liquid inlet pipe 2 on the side wall of the outer tank 3 through the submerged pump 16, flows into the inner filter tank 4, flows into the cavity between the inner filter tank 4 and the outer tank 3 after being filtered by the meshes, flows into the rotary drum grating 18 through the drain pipe 8 at the bottom, flows into the regulating tank 19 after being filtered again through the rotary drum grating 18, and impurities such as large particles and suspended matters are left in the inner filter tank 4 and discharged through the mud discharge pipe 6, and when the meshes of the inner filter tank 4 are blocked to influence the discharge of the percolate, the percolate returns to the percolating tank from the overflow pipe 12. By presetting the bag filter at the front end of the rotary drum grating 18, a large amount of large particles and impurities in the percolate are filtered, the probability of blocking and water bleeding of the rotary drum grating 18 is greatly reduced, and the stable operation of the percolate treatment system is ensured and the environmental protection requirement is met.
Further, in order to improve the filtering effect of the percolate, a stirrer 17 is arranged in the percolating tank 15, the percolate is stirred by the stirrer 17 and then is conveyed to the liquid inlet pipe 2 under the action of the submersible sewage pump 16, and large-particle impurities are filtered and simultaneously play a role in cleaning the sludge and sundries at the bottom of the percolating tank 15.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (9)
1. A bag filter for landfill leachate, its characterized in that includes outer jar body (3) and interior filtration jar body (4), outer jar body (3) are installed on the support frame, the upper end of outer jar body (3) is equipped with feed liquor pipe (2), and the lower extreme is equipped with drain pipe (8), interior filtration jar body (4) set up in outer jar body (3), outer jar body (3) with be formed with the cavity between interior filtration jar body (4), be equipped with a plurality of meshes on the lateral wall of interior filtration jar body (4), drain pipe (8) with cavity intercommunication, the upper end of interior filtration jar body (4) with feed liquor pipe (2) intercommunication, the lower extreme is equipped with mud pipe (6), mud pipe (6) stretch out outer jar body (3).
2. Bag filter according to claim 1, characterized in that the lower end of the inner filter tank body (4) is provided with a V-shaped sludge discharge pipe (13), the inner filter tank body (4) being in communication with the sludge discharge pipe (6) via the V-shaped sludge discharge pipe (13).
3. Bag filter according to claim 1, characterized in that the upper end of the inner filter tank body (4) is provided with a fixing flange, the outer tank body (3) is internally provided with a support flange (10), the support flange (10) is positioned below the liquid inlet pipe (2), and the fixing flange is in sealing connection with the support flange (10).
4. A bag filter according to claim 3, characterized in that a gusset (11) is provided in the outer tank (3), the gusset (11) being connected to the support flange (10).
5. A bag filter according to claim 3, characterized in that the upper end of the outer tank (3) is provided with a cover plate (9), a transition cavity (14) is formed between the cover plate (9) and the support flange (10), an overflow pipe (12) is arranged on the cover plate (9), and the overflow pipe (12) is communicated with the transition cavity (14).
6. Bag filter according to claim 5, characterized in that the cover plate (9) is provided with hand holes (1), which hand holes (1) communicate with the transition chamber (14).
7. Bag filter according to claim 5, characterized in that the lower end of the outer tank (3) is provided with a conical cylinder, the drain pipe (8) being arranged on the side wall of the conical cylinder.
8. Bag filter according to claim 1, characterized in that the support frame comprises a support seat (5) and a channel steel (7), the outer tank (3) being mounted on the support seat (5), the support seat (5) being mounted on the channel steel (7).
9. Bag filter according to claim 1, characterized in that the material of the inner filter tank body (4) is stainless steel, and the diameter of the mesh is a,0 < a < 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320713187.4U CN219630750U (en) | 2023-03-30 | 2023-03-30 | Bag filter for landfill leachate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320713187.4U CN219630750U (en) | 2023-03-30 | 2023-03-30 | Bag filter for landfill leachate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219630750U true CN219630750U (en) | 2023-09-05 |
Family
ID=87819496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320713187.4U Active CN219630750U (en) | 2023-03-30 | 2023-03-30 | Bag filter for landfill leachate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219630750U (en) |
-
2023
- 2023-03-30 CN CN202320713187.4U patent/CN219630750U/en active Active
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| GR01 | Patent grant |