CN215855746U - Sludge drying device - Google Patents
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- CN215855746U CN215855746U CN202122129537.6U CN202122129537U CN215855746U CN 215855746 U CN215855746 U CN 215855746U CN 202122129537 U CN202122129537 U CN 202122129537U CN 215855746 U CN215855746 U CN 215855746U
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Abstract
The invention discloses a sludge drying device, which comprises a sludge storage tank, a sludge pump and a flocculating agent feeding mechanism, wherein the sludge storage tank is provided with a sludge storage tank; the lower parts of the two sludge storage pools are respectively provided with a sludge inlet and a sludge outlet, the upper parts of the two sludge storage pools are respectively provided with a clear liquid overflow port, and a plurality of submersible stirrers are arranged in the two sludge storage pools; a mud inlet of the mud pump is communicated with one mud storage pool, and a mud outlet of the mud pump is communicated with the other mud storage pool; the flocculating agent feeding mechanism is arranged at the bottom of the sludge storage tanks and is used for feeding flocculating agents into the two sludge storage tanks; this scheme not only makes the work distribution between the mud storage pool more reasonable, has more realized more excellent treatment effect through the leading quenching and tempering operation of sewage to the current not good problem of mud storage pool application effect has been solved conscientiously.
Description
Technical Field
The invention relates to the technical field of sludge treatment, in particular to a sludge drying device.
Background
Sludge drying, also known as sludge dewatering, refers to a process of removing most of the water content from sludge by the action of percolation or evaporation, etc., which facilitates the transportation, accumulation, utilization or further treatment of the sludge, and the final purpose is to reuse the dried sludge.
The sludge storage tank is needed to be used when the sludge is dried, but the sludge storage tank is only used for temporary transfer of excess sludge, the moisture content of the discharged sludge is more than 98%, and the excess sludge discharged by the production line needs to be modified by adding chemicals into a modifying tank of a drying workshop to reduce the moisture content, so that on one hand, the modifying time is longer (2.5 hours), and the operation efficiency of the drying workshop is influenced; on the other hand, the tempering effect in the tempering tank is poor, the water content of sludge entering the plate frame machine is still more than 97%, the filter pressing time is long, the capacity is influenced, and the power consumption is increased, so that the capacity of a sludge drying workshop is always low; and the treatment capacity of each mud storage tank is different, so that part of the mud storage tanks are in a high-load working state for a long time, and part of the mud storage tanks can not be fully utilized for a long time.
In conclusion, the existing sludge storage tank has poor application effect, and therefore a technical scheme capable of solving the problem is urgently needed.
Disclosure of Invention
The invention aims to provide a sludge drying device to solve the problem that the existing sludge storage tank is poor in application effect.
In order to solve the technical problem, the invention provides a sludge drying device which comprises a first sludge storage tank, a second sludge storage tank, a sludge pump and a flocculating agent feeding mechanism, wherein the first sludge storage tank is connected with the sludge pump; a first sludge inlet and a first sludge outlet are formed in the lower part of the first sludge storage pool, a first clear liquid overflow port is formed in the upper part of the first sludge storage pool, and a plurality of first submersible stirrers are arranged in the first sludge storage pool; a second sludge inlet and a second sludge outlet are formed in the lower part of the second sludge storage pool, a second clear liquid overflow port is formed in the upper part of the second sludge storage pool, and a plurality of second submersible stirrers are arranged in the second sludge storage pool; a mud inlet of the mud pump is communicated with one of the first mud storage pool and the second mud storage pool, and a mud outlet of the mud pump is communicated with the other one of the first mud storage pool and the second mud storage pool; the flocculating agent feeding mechanism is arranged at the bottom of the first sludge storage pool and the bottom of the second sludge storage pool, and the flocculating agent feeding mechanism is used for feeding flocculating agents into the first sludge storage pool and the second sludge storage pool.
In one embodiment, a plurality of first submersible stirrers are arranged at the positions of the inner wall of the first mud storage pool, and the stirring direction of the first submersible stirrers is aligned with the first mud outlet.
In one embodiment, the second submersible stirrers are arranged at the positions of the inner wall of the second mud storage pool, and the stirring directions of the second submersible stirrers are aligned with the second mud outlet.
In one embodiment, a first time control switch is arranged in a control box of the first submersible stirrer and used for controlling the first submersible stirrer to stop working for 10-15 minutes after working for 2-3 hours.
In one embodiment, a second time control switch is arranged in a control box of the second submersible stirrer and used for controlling the second submersible stirrer to stop working for 10-15 minutes after working for 2-3 hours.
In one embodiment, the first sludge storage tank is provided with a plurality of first water suction pumps, and the first water suction pumps are used for pumping water and discharging water from the interior of the first sludge storage tank.
In one embodiment, the second sludge storage tank is provided with a plurality of second water suction pumps, and the second water suction pumps are used for pumping water and discharging water from the interior of the second sludge storage tank.
In one embodiment, the mud storage space of the first mud storage pool is larger than that of the second mud storage pool, the mud inlet of the mud pump is connected and communicated with the second mud storage pool, and the mud outlet of the mud pump is connected and communicated with the first mud storage pool.
The invention has the following beneficial effects:
firstly, as the mud inlet of the mud pump is communicated with one of the first mud storage tank and the second mud storage tank, and the mud outlet of the mud pump is communicated with the other of the first mud storage tank and the second mud storage tank, when one of the mud storage tanks works in an overload state, the mud pump can be used for transferring the mud into the mud storage tank with lower load, so that the work distribution among the mud storage tanks is more reasonable; secondly, because flocculating agent input mechanism locates first storage mud pit with the bottom in mud pit is stored up to the second, flocculating agent input mechanism is used for doing first storage mud pit with the second stores up mud pit and puts in the flocculating agent, so will make the quenching and tempering operation of sewage leading, realized more excellent treatment to the current not good problem of mud pit application effect of storing up has practically been solved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic top view of a structure provided in an embodiment of the present invention.
The reference numbers are as follows:
10. a first sludge storage tank; 11. a first sludge inlet; 12. a first sludge outlet; 13. a first clear liquid overflow port; 14. a first submersible mixer; 15. a first time-controlled switch; 16. a first water pump;
20. a second sludge storage tank; 21. a second sludge inlet; 22. a second sludge outlet; 23. a second clear liquid overflow port; 24. a second submersible mixer; 25. a second time control switch; 26. a first water pump;
30. a dredge pump;
40. flocculating agent input mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The invention provides a sludge drying device, the embodiment of which is shown in figure 1 and comprises a first sludge storage tank 10, a second sludge storage tank 20, a sludge pump 30 and a flocculating agent throwing mechanism 40; a first sludge inlet 11 and a first sludge outlet 12 are arranged at the lower part of the first sludge storage pool 10, a first clear liquid overflow port 13 is arranged at the upper part of the first sludge storage pool 10, and a plurality of first submersible stirrers 14 are arranged inside the first sludge storage pool 10; a second sludge inlet 21 and a second sludge outlet 22 are arranged at the lower part of the second sludge storage pool 20, a second clear liquid overflow port 23 is arranged at the upper part of the second sludge storage pool 20, and a plurality of second submersible stirrers 24 are arranged inside the second sludge storage pool 20; a sludge inlet of the sludge pump 30 is connected and communicated with one of the first sludge storage tank 10 and the second sludge storage tank 20, and a sludge outlet of the sludge pump 30 is connected and communicated with the other one of the first sludge storage tank 10 and the second sludge storage tank 20; the flocculating agent throwing mechanism 40 is arranged at the bottoms of the first sludge storage tank 10 and the second sludge storage tank 20, and the flocculating agent throwing mechanism 40 is used for throwing flocculating agents into the first sludge storage tank 10 and the second sludge storage tank 20.
Since the working principle and the beneficial effect of the first sludge storage tank 10 and the second sludge storage tank 20 are the same, the working principle and the beneficial effect of the second sludge storage tank 20 can be obtained by taking the first sludge storage tank 10 as an example and repeating the following steps.
When the device is used, sludge can enter the first sludge storage tank 10 through the first sludge inlet 11, and the continuous operation of the first submersible stirrer 14 can continuously stir the sludge in the first sludge storage tank 10, so that sludge precipitation is avoided, and the sludge can be discharged by pushing the sludge to the first sludge outlet 12.
Wherein, the flocculating agent putting mechanism 40 puts the flocculating agent into the first sludge storage tank 10; specifically, the flocculant feeding mechanism 40 can be implemented in various ways, such as loading a flocculant in a container, and then feeding the flocculant by opening and closing a valve, or feeding the flocculant by pumping the flocculant through a pump body, specifically selecting the flocculant according to actual application scenarios.
In addition, in this embodiment, one flocculating agent throwing mechanism 40 may be used to set a flow dividing structure and throw flocculating agents into the first sludge storage tank 10 and the second sludge storage tank 20, or two flocculating agent throwing mechanisms may be used to respectively throw flocculating agents into the first sludge storage tank 10 and the second sludge storage tank 20.
Therefore, the method is equivalent to that the flocculating agent (polyacrylamide) which is to be added into the conditioning tank of the drying workshop is added into the first sludge storage tank 10 in a front-mounted manner, the adding point can be selected near the first sludge inlet 11, and the flocculating agent and the sludge are uniformly mixed by utilizing the hydraulic impact of the first sludge inlet 11 and the first submersible stirrer 14.
After the sludge drying device disclosed by the embodiment is adopted, the conditioning time of a drying workshop is shortened from 2.5 hours to about 1 hour, and the operation efficiency is improved to a greater extent; the water content of the sludge discharged from the sludge storage tank is reduced to 97.5% from 98.6%, sometimes can be reduced to 96%, the filter pressing time of a plate frame is greatly shortened, and electric energy is saved; the discharge amount of the residual sludge in the biochemical pool of the whole plant can be increased by about 1 time; the increase in dry sludge yield was 31.8%.
In addition, assuming that the mud pump 30 of this embodiment is used for pumping the sludge in the second mud storage tank 20 to the first mud storage tank 10, when the sludge in the second mud storage tank 20 is too much and the sludge in the first mud storage tank 10 is not full, the mud pump 30 can be used for pumping the sludge in the second mud storage tank 20 to the first mud storage tank 10, so that the work distribution among the mud storage tanks is more reasonable.
In conclusion, the scheme not only enables the work distribution among the sludge storage tanks to be more reasonable, but also realizes a better treatment effect through the preposed conditioning operation of the sewage, thereby really solving the problem of poor application effect of the existing sludge storage tanks.
As shown in fig. 1, a plurality of first submersible mixers 14 are disposed at various positions on the inner wall of the first mud storage tank 10, and the mixing direction of the plurality of first submersible mixers 14 is aligned with the first mud outlet 12.
Specifically, the plurality of first submersible mixers 14 of this embodiment are disposed adjacent to the first sludge inlet 11, for example, a portion of the first submersible mixers 14 may be disposed on both sides of the first sludge inlet 11, and a portion of the first submersible mixers 14 may be disposed between the first sludge inlet 11 and the first sludge outlet 12, so as to ensure smooth transfer of sludge from the first sludge inlet 11 to the first sludge outlet 12.
Wherein, the first submersible mixer 14 will be provided with a structure similar to a stirring blade, so when the first submersible mixer 14 works, sludge can enter from the stirring blade side of the first submersible mixer 14 and be output from the stirring blade side of the first submersible mixer 14, and the sludge output direction of the first submersible mixer 14 is aligned with the first sludge outlet 12, so that the sludge can be better sent to the first sludge outlet 12 to be discharged.
As shown in fig. 1, a plurality of second submersible mixers 24 are disposed at various positions on the inner wall of the second mud storage tank 20, and the mixing direction of the plurality of second submersible mixers 24 is aligned with the second mud outlet 22.
Specifically, the second submersible mixers 24 of this embodiment are disposed adjacent to the second sludge inlet 21, for example, a portion of the second submersible mixers 24 are disposed on two sides of the second sludge inlet 21, and a portion of the second submersible mixers 24 are disposed between the second sludge inlet 21 and the second sludge outlet 22, so as to ensure smooth transfer of sludge from the second sludge inlet 21 to the second sludge outlet 22.
Wherein, the second submersible mixer 24 will be provided with the structure similar to the mixing blade, so when the second submersible mixer 24 works, the sludge can enter from the mixing blade side of the second submersible mixer 24 and be output from the mixing blade side of the second submersible mixer 24, and the sludge output direction of the second submersible mixer 24 is aligned with the second sludge outlet 22, so that the sludge can be ensured to be better sent to the second sludge outlet 22 for discharge.
As shown in fig. 1, a first time control switch 15 is arranged in the control box of the first submersible mixer 14, and the first time control switch 15 is used for controlling the first submersible mixer 14 to stop working for 10-15 minutes after working for 2-3 hours.
In the prior art, the submersible stirrer is continuously operated for 24 hours, but the submersible stirrer is damaged due to overhigh working strength, and after the first time control switch 15 is additionally arranged, the first submersible stirrer 14 can be conveniently stopped and rested after being operated for a long time, so that the damage rate of the first submersible stirrer 14 is reduced; and after the flocculant is added, the efficiency of forming the supernatant by separating the sludge water is improved, so that the addition of the first time control switch 15 provides more time for forming the supernatant, namely the sludge is precipitated and formed into the supernatant to be discharged in the shutdown process of the first submersible stirrer 14, so that the application effect of the flocculant is exerted more fully, and important help is provided for reducing the water content of the sludge.
The operation time of the first submersible mixer 14 can be set to 2 hours, 2.5 hours or 3 hours, and the stop operation time can be set to 10 minutes, 12.5 minutes or 15 minutes, for example, in this embodiment, the first submersible mixer 14 is preferably stopped for 10 minutes every 2 hours of operation, so as to more reasonably distribute the operation and stop time of the first submersible mixer 14.
As shown in fig. 1, a second time control switch 25 is arranged in the control box of the second submersible mixer 24, and the second time control switch 25 is used for controlling the second submersible mixer 24 to stop working for 10-15 minutes after working for 2-3 hours.
In the prior art, the submersible stirrer is continuously operated for 24 hours, but the submersible stirrer is damaged due to overhigh working strength, and after the second time control switch 25 is additionally arranged, the submersible stirrer 24 can be conveniently stopped and rested after being operated for a long time, so that the damage rate of the second submersible stirrer 24 is reduced; and after the flocculant is added, the efficiency of supernatant liquid formation by sludge-water separation is improved, so that the addition of the second time control switch 25 provides more time for the formation of the supernatant liquid, namely, the sludge is precipitated and the supernatant liquid is discharged conveniently in the process of stopping the second submersible stirrer 24, thereby more fully exerting the application effect of the flocculant and providing important help for reducing the water content of the sludge.
The operation time of the second submersible mixer 24 can be set to 2 hours, 2.5 hours or 3 hours, and the stop operation time can be set to 10 minutes, 12.5 minutes or 15 minutes, for example, in this embodiment, the second submersible mixer 24 is preferably stopped for 10 minutes every 2 hours of operation, so as to more reasonably distribute the operation and stop time of the second submersible mixer 24.
As shown in fig. 1, the first sludge storage tank 10 is provided with a plurality of first suction pumps 16, and the plurality of first suction pumps 16 are used for pumping water from the interior of the first sludge storage tank 10 and discharging the water.
In the prior art, a flocculating agent cannot be added into the first sludge storage tank 10, so that the efficiency of forming the supernatant in the first sludge storage tank 10 is low, and the first supernatant overflow port 13 can meet the requirement of discharging the supernatant; however, after the flocculant feeding mechanism 40 is additionally arranged in the embodiment, the formation of the supernatant can be greatly accelerated, and the first supernatant overflow port 13 is difficult to meet the timely discharge of the supernatant, so that the plurality of first water pumps 16 are additionally arranged in the embodiment to timely draw the supernatant for discharge by using the plurality of first water pumps 16, and the problem of overlarge discharge amount of the supernatant is solved.
As shown in fig. 1, the second sludge storage tank 20 is provided with a plurality of second water pumps 26, and the plurality of second water pumps 26 are used for pumping water from the interior of the second sludge storage tank 20 and discharging the water.
In the prior art, a flocculating agent cannot be added into the second sludge storage tank 20, so that the efficiency of forming the supernatant in the second sludge storage tank 20 is low, and the second supernatant overflow port 23 can meet the requirement of discharging the supernatant; however, after the flocculant feeding mechanism 40 is additionally arranged in the embodiment, the formation of the supernatant can be greatly accelerated, and the overflow port 23 of the second supernatant is difficult to meet the requirement for timely discharging of the supernatant, so that the second water pumps 26 are additionally arranged in the embodiment to timely draw and discharge the supernatant by utilizing the second water pumps 26, and the problem of overlarge discharge amount of the supernatant is solved.
As shown in fig. 1, the mud storage space of the first mud storage tank 10 is larger than the mud storage space of the second mud storage tank 20, the mud inlet of the mud pump 30 is connected and communicated with the second mud storage tank 20, and the mud outlet of the mud pump 30 is connected and communicated with the first mud storage tank 10.
After the first sludge storage tank 10 and the second sludge storage tank 20 are arranged to have different sludge storage spaces, the sludge can be more flexibly allocated, for example, if the sludge storage amount of the first sludge storage tank 10 is 100 tons, the sludge storage amount of the second sludge storage tank 20 is 70 tons, if 50 tons of sludge needs to be processed at the moment, the second sludge storage tank 20 can be independently opened to work, if 80 tons of sludge needs to be processed, the first sludge storage tank 10 can be independently opened to work, or 80 tons of sludge is distributed to the first sludge storage tank 10 and the second sludge storage tank 20 to be jointly processed, so that the flexibility of the sludge drying device is greatly improved.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (8)
1. A sludge drying device, which is characterized in that,
comprises a first sludge storage tank, a second sludge storage tank, a sludge pump and a flocculating agent feeding mechanism;
a first sludge inlet and a first sludge outlet are formed in the lower part of the first sludge storage pool, a first clear liquid overflow port is formed in the upper part of the first sludge storage pool, and a plurality of first submersible stirrers are arranged in the first sludge storage pool;
a second sludge inlet and a second sludge outlet are formed in the lower part of the second sludge storage pool, a second clear liquid overflow port is formed in the upper part of the second sludge storage pool, and a plurality of second submersible stirrers are arranged in the second sludge storage pool;
a mud inlet of the mud pump is communicated with one of the first mud storage pool and the second mud storage pool, and a mud outlet of the mud pump is communicated with the other one of the first mud storage pool and the second mud storage pool;
the flocculating agent feeding mechanism is arranged at the bottom of the first sludge storage pool and the bottom of the second sludge storage pool, and the flocculating agent feeding mechanism is used for feeding flocculating agents into the first sludge storage pool and the second sludge storage pool.
2. The sludge drying device as claimed in claim 1, wherein the first submersible mixers are disposed at the inner wall of the first sludge storage tank, and the mixing direction of the first submersible mixers is aligned with the first sludge outlet.
3. The sludge drying device as claimed in claim 1, wherein the second submersible mixers are disposed at the inner wall of the second sludge storage tank, and the mixing direction of the second submersible mixers is aligned with the second sludge outlet.
4. The sludge drying device as claimed in claim 1, wherein a first time control switch is arranged in the control box of the first submersible mixer, and the first time control switch is used for controlling the first submersible mixer to stop working for 10-15 minutes after working for 2-3 hours.
5. The sludge drying device as claimed in claim 1, wherein a second time control switch is arranged in the control box of the second submersible mixer, and the second time control switch is used for controlling the second submersible mixer to stop working for 10-15 minutes after working for 2-3 hours.
6. The sludge drying device as claimed in claim 1, wherein the first sludge storage tank is provided with a plurality of first water pumps, and the plurality of first water pumps are used for pumping water from the inside of the first sludge storage tank and discharging the water.
7. The sludge drying device as claimed in claim 1, wherein the second sludge storage tank is provided with a plurality of second water pumps, and the plurality of second water pumps are used for pumping water from the inside of the second sludge storage tank and discharging the water.
8. The sludge drying device as claimed in claim 1, wherein the sludge storage space of the first sludge storage tank is larger than the sludge storage space of the second sludge storage tank, the sludge inlet of the sludge pump is connected and communicated with the second sludge storage tank, and the sludge outlet of the sludge pump is connected and communicated with the first sludge storage tank.
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|---|---|---|---|
| CN202122129537.6U CN215855746U (en) | 2021-09-03 | 2021-09-03 | Sludge drying device |
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| CN202122129537.6U CN215855746U (en) | 2021-09-03 | 2021-09-03 | Sludge drying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113666610A (en) * | 2021-09-03 | 2021-11-19 | 广州市净水有限公司 | Sludge drying device |
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2021
- 2021-09-03 CN CN202122129537.6U patent/CN215855746U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113666610A (en) * | 2021-09-03 | 2021-11-19 | 广州市净水有限公司 | Sludge drying device |
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