CN220589039U - Sludge conveying device used in sewage treatment system - Google Patents
Sludge conveying device used in sewage treatment system Download PDFInfo
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- CN220589039U CN220589039U CN202321974526.0U CN202321974526U CN220589039U CN 220589039 U CN220589039 U CN 220589039U CN 202321974526 U CN202321974526 U CN 202321974526U CN 220589039 U CN220589039 U CN 220589039U
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- sludge
- sewage
- storage tank
- sewage treatment
- valve
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- 239000010802 sludge Substances 0.000 title claims abstract description 124
- 239000010865 sewage Substances 0.000 title claims abstract description 47
- 239000010801 sewage sludge Substances 0.000 claims abstract description 47
- 238000003756 stirring Methods 0.000 claims abstract description 31
- 239000003245 coal Substances 0.000 claims abstract description 24
- 238000002309 gasification Methods 0.000 claims abstract description 22
- 230000000903 blocking effect Effects 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 6
- 238000000227 grinding Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000011001 backwashing Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001546 nitrifying effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model belongs to a sludge conveying device used in a sewage treatment system; the device comprises a sewage treatment pipeline and a gasification coal mill, wherein the sewage treatment pipeline is connected with a sludge concentration tank with a sludge scraper arranged inside, an outlet of the sludge concentration tank is connected with a first inlet of a sewage sludge storage tank, an outlet of the sewage sludge storage tank is connected with a sludge inlet of the gasification coal mill, and a second inlet of the sewage sludge storage tank is connected with an accident tank; a stirring unit is arranged in the sewage sludge storage tank, and a sludge feeding pump is arranged between the outlet of the sewage sludge storage tank and the sludge inlet of the gasification coal mill; the method has the advantages of effectively utilizing the wastewater of the accident pool, improving the scaling condition of the outward-conveying gasification coal grinding pipeline, avoiding the defect that the pipeline is blocked by the sludge frequently, reducing the labor intensity of blocking clearing personnel and lowering the running cost of enterprises.
Description
Technical Field
The utility model belongs to the field of sewage treatment systems, and particularly relates to a sludge conveying device used in a sewage treatment system.
Background
At present, the sludge generated in the sewage treatment system of the chemical industry generally adopts a mode of conveying the sludge to a gasification coal mill for utilization, a large amount of sludge is generated in the sewage treatment system in the actual operation process, a large amount of sedimentary substances are contained in the sludge, the flowing state in pipeline conveying is complex, and the condition that the sludge blocks a pipeline often occurs; when the situation occurs, the pipeline needs to be cleaned manually, so that the labor intensity is high, and the defect of high operation cost exists.
Disclosure of Invention
The present utility model is directed to a sludge conveying device for use in a sewage treatment system, so as to solve the problems set forth in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the sludge conveying device comprises a sewage treatment pipeline and a gasification coal mill, wherein the sewage treatment pipeline is connected with a sludge concentration tank with a sludge scraper arranged inside, an outlet of the sludge concentration tank is connected with a first inlet of a sewage sludge storage tank, an outlet of the sewage sludge storage tank is connected with a sludge inlet of the gasification coal mill, and a second inlet of the sewage sludge storage tank is connected with an accident tank; the inside of the sewage sludge storage tank is provided with a stirring unit, and a sludge feeding pump is arranged between the outlet of the sewage sludge storage tank and the sludge inlet of the gasification coal mill.
The beneficial effects of the utility model are as follows: the sewage is conveyed into the sludge concentration tank through the sewage treatment pipeline, the sludge scraper in the sludge concentration tank is used for discharging sludge and conveying the sludge to the sewage sludge storage tank.
As a further scheme of the utility model: the stirring unit comprises a stirring motor, a main shaft extending to the inner lower part of the sewage sludge storage tank and stirring blades sleeved on the main shaft.
As a further scheme of the utility model: when the stirring unit is one, the stirring motor is arranged at the middle position of the top of the sewage sludge storage tank; when the stirring units are multiple, the stirring motors are uniformly arranged on the outer side wall of the sewage sludge storage tank.
As a further scheme of the utility model: a first valve is arranged between the sewage treatment pipeline and the sludge concentration tank, and a second valve and a concentration pump are sequentially arranged between the sludge concentration tank and the sewage storage tank.
As a further scheme of the utility model: a third valve and an accident pump are sequentially arranged between the accident pool and the second inlet of the sewage storage pool.
As a further scheme of the utility model: a fourth valve is arranged between the outlet of the sewage sludge storage pool and the sludge feeding pump, a tee joint and a fifth valve are sequentially arranged between the sludge feeding pump and the sludge inlet of the gasification coal mill, and a back flushing water pipeline with a sixth valve is arranged at the third end of the tee joint.
As a further scheme of the utility model: and a window for observing the internal blocking condition of the pipeline is arranged on the pipeline between the sludge feeding pump and the tee joint.
The utility model also comprises a PLC control device, wherein the signal input end of the PLC control device is respectively connected with the differential pressure sensor and the liquid level sensor, and the signal output end of the PLC control device is respectively connected with the third valve, the fourth valve, the fifth valve, the sixth valve and the sludge feeding pump; the differential pressure sensor is arranged at the inlet and the outlet of the sludge feed pump, and the liquid level sensor is arranged on the sewage sludge storage pool.
As a further scheme of the utility model: the signal input end of the PLC control device is also connected with a flow sensor, and the flow sensor is arranged at the outlet of the sludge feed pump.
According to the sludge conveying device used in the sewage treatment system, the accident pool wastewater in the accident pool is introduced into the sewage sludge storage pool, the sludge discharged from the sludge concentration pool is softened and diluted by utilizing the characteristic that the accident pool wastewater is acidic so as to enhance the fluidity of the sludge, the scaling problem of an external air-feeding coal grinding pipeline is solved, the problem of frequently occurring sludge blocking the pipeline is avoided, and meanwhile, the characteristic of convenient observation of the interior of the pipeline can be realized by arranging a backwashing water pipeline and a window, and the convenient observation comprises the observation of the blocking condition of the interior of the pipeline, the judgment of backwashing time and the observation of the effect after backwashing; so as to achieve the characteristics of reducing the labor intensity of clearing the blockage and reducing the operation cost; further, in order to reduce the frequency of pipeline blockage, the utility model is provided with a liquid level sensor which can monitor the liquid level condition of materials in the sewage sludge storage pool so as to judge the soft condition and dilution condition of the sludge, thereby realizing long-time stable operation of the sludge conveying pipeline, and simultaneously, in order to facilitate control, the utility model is also provided with a differential pressure sensor so as to achieve the characteristics of timely direction blockage and convenient control of backwash opportunity; the method has the advantages of effectively utilizing the wastewater of the accident pool, improving the scaling condition of the outward-conveying gasification coal grinding pipeline, avoiding the defect that the pipeline is blocked by the sludge frequently, reducing the labor intensity of blocking clearing personnel and lowering the running cost of enterprises.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the structure of the sewage sludge storage tank in the utility model;
fig. 3 is a control schematic block diagram of the present utility model.
In the figure: 1. a sewage treatment pipeline; 2. gasifying coal mill; 3. a sludge concentration tank; 4. a mud scraper; 5. a sewage mud storage tank; 6. an accident pool; 7. a sludge feed pump; 8. a stirring motor; 9. a main shaft; 10. stirring blades; 11. a first valve; 12. a second valve; 13. a third valve; 14. a fourth valve; 15. a fifth valve; 16. a sixth valve; 17. a concentration pump; 18. an accident pump; 19. backwash water pipeline; 20. a window; 21. a PLC control device; 22. a differential pressure sensor; 23. a liquid level sensor; 24. a flow sensor.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, the present utility model is a sludge conveying device used in a sewage treatment system, the sludge conveying device used in the sewage treatment system comprises a sewage treatment pipeline 1 and a gasification coal mill 2, the sewage treatment pipeline 1 is connected with a sludge concentration tank 3 with a sludge scraper 4 inside, an outlet of the sludge concentration tank 3 is connected with a first inlet of a sewage sludge storage tank 5, an outlet of the sewage sludge storage tank 5 is connected with a sludge inlet of the gasification coal mill 2, and a second inlet of the sewage sludge storage tank 5 is connected with an accident tank 6; the interior of the sewage sludge storage tank 5 is provided with a stirring unit, and a sludge feeding pump 7 is arranged between the outlet of the sewage sludge storage tank 5 and the sludge inlet of the gasification coal mill 2. In the process, sewage in the sewage treatment pipeline 1 enters the sludge concentration tank 3 for concentration and sludge generation, when the sludge reaches a certain amount, the sludge scraper 4 is started and is sent to the sewage sludge storage tank 5, meanwhile, accident pool wastewater in the accident pool 6 enters the sewage sludge storage tank 5, the stirring unit is started to uniformly mix the sludge with the accident pool wastewater, and the characteristics of the accident pool wastewater are utilized for softening and diluting the sludge so as to improve the fluidity of the sludge, improve the scaling problem of the out-feeding gasification coal grinding pipeline effectively and avoid the frequent occurrence of the characteristic of blocking the pipeline by the sludge. The sludge feeding pump 7 is preferably a sludge screw pump; in the utility model, sewage in a sewage treatment pipeline 1 is preferably subjected to biochemical treatment by adopting an SBR (sequencing batch reactor) process, nitrification and denitrification in a tank are alternately operated, and because of concentration and cyclic utilization, high calcium and magnesium ions and hardness exist in the wastewater in the chemical industry, the alkalinity/ammonia nitrogen ratio of the nitrifying reaction of the activated sludge is maintained to be generally above 3, and the alkalinity in the wastewater is generally insufficient to maintain the normal operation of the nitrifying reaction, so that carbonate is required to be added into a sludge concentration tank 3 to maintain the normal operation of the nitrifying reaction, and the carbonate is reacted with calcium and magnesium ions in water to generate carbonate precipitation after the carbonate is added, so that a large amount of inorganic sludge exists in the water; and inorganic sludge enters a sludge storage tank along with sludge discharged by the sludge concentration tank 3, so that a large amount of inorganic sludge and aged sludge can subside. The accident pool wastewater is acidic, has a softening effect on sludge discharged from the sludge concentration pool 3, is stirred and sent outwards through the sludge storage pool, and effectively improves scaling of an outwards sent gasification coal grinding pipeline and deposition of the sludge concentration pool 3.
Further, the stirring unit comprises a stirring motor 8, a main shaft 9 extending to the inner lower part of the sewage sludge storage tank 5 and a stirring blade 10 sleeved on the main shaft 9. The stirring blade 10 is arranged at the inner lower part of the sewage sludge storage tank 5 and is used for fully mixing the accident tank wastewater and the sludge.
Further, when the stirring unit is one, the stirring motor 8 is arranged at the middle position of the top of the sewage sludge storage tank 5; when the stirring units are multiple, the stirring motors 8 are uniformly arranged on the outer side wall of the sewage sludge storage tank 5. The utility model provides an installation scheme of two stirring units, which is based on the fact that the accident pool wastewater and sludge can be fully mixed.
Further, a first valve 11 is arranged between the sewage treatment pipeline 1 and the sludge concentration tank 3, and a second valve 12 and a concentration pump 17 are sequentially arranged between the sludge concentration tank 3 and the sewage storage tank 5.
Further, a third valve 13 and an accident pump 18 are sequentially arranged between the accident pool 6 and the second inlet of the sewage storage mud pool 5.
Further, a fourth valve 14 is arranged between the outlet of the sewage sludge storage tank 5 and the sludge feeding pump 7, a tee joint and a fifth valve 15 are sequentially arranged between the sludge feeding pump 7 and the sludge inlet of the gasification coal mill 2, and a back flushing water pipeline 19 with a sixth valve 16 is arranged at the third end of the tee joint. By the arrangement, the back flushing of the sludge conveying pipeline can be realized, and the purpose of facilitating blockage clearing can be achieved when the pipeline is blocked by sludge.
Further, a window 20 for observing the blocking condition inside the pipeline is arranged on the pipeline between the sludge feed pump 7 and the tee joint. The condition inside the pipeline can be conveniently observed through setting up window 20 to judge back flush opportunity and observe the characteristics of effect behind the back flush, namely: the purpose of clearing blockage can be realized on the premise of not disassembling the pipeline.
Referring to fig. 3, the utility model further includes a PLC control device 21, wherein a signal input end of the PLC control device 21 is respectively connected with a differential pressure sensor 22 and a liquid level sensor 23, and a signal output end of the PLC control device 21 is respectively connected with a third valve 13, a fourth valve 14, a fifth valve 15, a sixth valve 16 and a sludge feeding pump 7; the differential pressure sensor 22 is arranged at the inlet and the outlet of the sludge feeding pump 7, and the liquid level sensor 23 is arranged on the sewage sludge storage tank 5.
Further, the signal input end of the PLC control device 21 is further connected to a flow sensor 24, and the flow sensor 24 is disposed at the outlet of the sludge feed pump 7.
The working principle of the utility model is as follows: the sewage in the sewage treatment pipeline 1 enters a sludge concentration tank 3 to be concentrated and generate sludge, when the sludge reaches a certain amount, a sludge scraper 4 is started and is sent to a sewage sludge storage tank 5, meanwhile, accident pool wastewater in an accident pool 6 enters the sewage sludge storage tank 5, a stirring unit is started to uniformly mix the sludge with the accident pool wastewater, the sludge is softened and diluted by utilizing the characteristics of the accident pool wastewater, and the softened and diluted sludge is pumped to a gasification coal mill 2 through a sludge feeding pump 7 for use; the process is continuously operated, the liquid level sensor 23 is used for detecting the liquid level in the sewage sludge storage tank 5, and when the liquid level does not accord with the corresponding threshold value, the PLC control device 21 can control the third valve 13 to be opened, so that the accident pool wastewater in the accident pool 6 is fed into the sewage sludge storage tank 5; when the liquid level meets the corresponding threshold value, the third valve 13 can be controlled to be closed by the PLC control device 21; further, the utility model judges whether the pipeline is blocked or not through the differential pressure sensor 22 or the cooperation flow sensor 24, when the detection is in a reasonable threshold value, the detection proves that the pipeline is in a normal operation state, when the detection is in an unreasonable threshold value, the detection proves that the pipeline is in an abnormal operation state, at the moment, the PLC control device 21 controls the fourth valve 14 and the sixth valve 16 to be opened, the fifth valve 15 is closed, backwash water in the backwash water pipeline 19 is utilized for blocking removal, and the condition in the pipeline is observed through the window 20, after the pipeline blocking removal is finished, the PLC control device 21 controls the fourth valve 14 and the fifth valve 15 to be opened, the sixth valve 16 is closed, and the sludge feed pump 7 is started, so that the sludge in the sewage sludge storage tank 5 is conveyed into the gasification coal mill 2.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. The utility model provides a mud conveyor who uses in sewage treatment system, includes sewage treatment pipeline (1) and gasification coal pulverizer (2), and sewage treatment pipeline (1) links to each other with inside sludge concentration pond (3) that are equipped with mud scraper (4), its characterized in that: the outlet of the sludge concentration tank (3) is connected with the first inlet of the sewage sludge storage tank (5), the outlet of the sewage sludge storage tank (5) is connected with the sludge inlet of the gasification coal mill (2), and the second inlet of the sewage sludge storage tank (5) is connected with the accident tank (6);
the inside of the sewage sludge storage tank (5) is provided with a stirring unit, and a sludge feeding pump (7) is arranged between the outlet of the sewage sludge storage tank (5) and the sludge inlet of the gasification coal mill (2).
2. A sludge transfer apparatus for use in a sewage treatment system as claimed in claim 1, wherein: the stirring unit comprises a stirring motor (8), a main shaft (9) extending to the inner lower part of the sewage sludge storage tank (5) and stirring blades (10) sleeved on the main shaft (9).
3. A sludge transfer apparatus for use in a sewage treatment system as claimed in claim 2, wherein: when the stirring unit is one, the stirring motor (8) is arranged at the middle position of the top of the sewage sludge storage tank (5);
when the stirring units are multiple, the stirring motors (8) are uniformly arranged on the outer side wall of the sewage sludge storage tank (5).
4. A sludge transfer apparatus for use in a sewage treatment system as claimed in claim 1, wherein: a first valve (11) is arranged between the sewage treatment pipeline (1) and the sludge concentration tank (3), and a second valve (12) and a concentration pump (17) are sequentially arranged between the sludge concentration tank (3) and the sewage storage tank (5).
5. A sludge transfer apparatus for use in a sewage treatment system as claimed in claim 1, wherein: a third valve (13) and an accident pump (18) are sequentially arranged between the accident pool (6) and the second inlet of the sewage storage mud pool (5).
6. A sludge transfer apparatus for use in a sewage treatment system as claimed in claim 1, wherein: a fourth valve (14) is arranged between the outlet of the sewage sludge storage pool (5) and the sludge feeding pump (7), a tee joint and a fifth valve (15) are sequentially arranged between the sludge feeding pump (7) and the sludge inlet of the gasification coal mill (2), and a back flushing water pipeline (19) with a sixth valve (16) is arranged at the third end of the tee joint.
7. A sludge transfer apparatus for use in a sewage treatment system as claimed in claim 6, wherein: and a window (20) for observing the internal blocking condition of the pipeline is arranged on the pipeline between the sludge feeding pump (7) and the tee joint.
8. A sludge transfer apparatus for use in a sewage treatment system as claimed in claim 1, wherein: the device also comprises a PLC control device (21), wherein the signal input end of the PLC control device (21) is respectively connected with the differential pressure sensor (22) and the liquid level sensor (23), and the signal output end of the PLC control device (21) is respectively connected with the third valve (13), the fourth valve (14), the fifth valve (15), the sixth valve (16) and the sludge feeding pump (7);
the differential pressure sensor (22) is arranged at the inlet and the outlet of the sludge feeding pump (7), and the liquid level sensor (23) is arranged on the sewage sludge storage tank (5).
9. A sludge transfer apparatus for use in a sewage treatment system as claimed in claim 8, wherein: the signal input end of the PLC control device (21) is also connected with a flow sensor (24), and the flow sensor (24) is arranged at the outlet of the sludge feeding pump (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321974526.0U CN220589039U (en) | 2023-07-26 | 2023-07-26 | Sludge conveying device used in sewage treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321974526.0U CN220589039U (en) | 2023-07-26 | 2023-07-26 | Sludge conveying device used in sewage treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220589039U true CN220589039U (en) | 2024-03-15 |
Family
ID=90166207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321974526.0U Active CN220589039U (en) | 2023-07-26 | 2023-07-26 | Sludge conveying device used in sewage treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220589039U (en) |
-
2023
- 2023-07-26 CN CN202321974526.0U patent/CN220589039U/en active Active
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