CN111116007A - Method for optimizing operation of concentration tank and improving efficiency - Google Patents
Method for optimizing operation of concentration tank and improving efficiency Download PDFInfo
- Publication number
- CN111116007A CN111116007A CN201911418470.9A CN201911418470A CN111116007A CN 111116007 A CN111116007 A CN 111116007A CN 201911418470 A CN201911418470 A CN 201911418470A CN 111116007 A CN111116007 A CN 111116007A
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- Prior art keywords
- sludge
- conveying
- concentration
- box body
- concentration tank
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
Abstract
The invention relates to a method for optimizing the operation of a concentration tank and improving the efficiency, which comprises the following steps: conveying all sludge into a sludge storage tank for storage, and ensuring the sludge inlet amount by maintaining the liquid level of a sludge storage tank to ensure the liquid level difference between the sludge storage tank and a sludge inlet pump to the maximum extent; conveying the sludge in the first sludge storage tank into a concentration tank by a sludge inlet pump in batches, adding a medicament into the concentration tank to fully mix and react the medicament and the sludge, and conveying the sludge subjected to primary concentration back to the sludge storage tank again under the action of the sludge inlet pump through a return pipeline; conveying the sludge subjected to primary concentration into a concentration tank by a sludge inlet pump one by one, and adding a medicament into the concentration tank to fully mix and react the medicament and the sludge; conveying the sludge subjected to secondary concentration into a centrifugal dehydrator for dehydration through a sludge inlet pump, and conveying the sludge subjected to dehydration into a sludge storage chamber for storage through a spiral conveying device.
Description
Technical Field
The invention relates to the technical field of environmental remediation, in particular to a method for optimizing the operation of a concentration tank and improving the efficiency.
Background
The existing process has the disadvantages that the retention time of sludge in a concentration tank is too long, the reflux load of a sludge system is too high under the action of microbial anaerobic digestion and phosphorus release, and the phosphorus removal of the system is adversely affected; and the elevation of the bottom of the concentration tank is close to the elevation of the sludge inlet pump, so that when the sludge level of the concentration tank is low, the fluctuation of the sludge inlet amount is large, the adjustment of the dehydrator is frequent, and the sludge treatment amount and the medicament consumption amount are influenced to a certain extent.
Disclosure of Invention
The invention can screen out large impurities in the sludge wrapped by the spiral conveying mechanism, and can discharge residual moisture in the sludge in an evaporation mode by a heating mode, thereby playing a role in improving the practical performance of the sludge, and providing a method for optimizing the operation of the concentration tank and improving the efficiency.
In order to solve the technical problem, the invention provides a method for optimizing the operation of a concentration tank and improving the efficiency, which is characterized by comprising the following steps: the method comprises the following steps:
s1: centralized mud storage: conveying all sludge into a sludge storage tank for storage, and ensuring the sludge inlet amount by maintaining the liquid level of a sludge storage tank to ensure the liquid level difference between the sludge storage tank and a sludge inlet pump to the maximum extent;
s2: primary lifting and concentration: conveying the sludge in the first sludge storage tank into a concentration tank by a sludge inlet pump in batches, adding a medicament into the concentration tank to fully mix and react the medicament and the sludge, and conveying the sludge subjected to primary concentration back to the sludge storage tank again under the action of the sludge inlet pump through a return pipeline;
s3: and (3) secondary lifting and concentration: conveying the sludge subjected to the step S2 into the concentration tank by a sludge inlet pump one by one again, and adding a medicament into the concentration tank to fully mix and react the medicament with the sludge;
s4: centrifuging to remove water: and (5) conveying the sludge subjected to the step S3 into a centrifugal dehydrator for dehydration through a sludge inlet pump, and conveying the dehydrated sludge into a sludge storage chamber for storage through a screw conveying device.
Further: the batch-by-batch conveying in the steps S2 and S3 means that the first batch of sludge is conveyed to the concentration tank continuously after reacting in the concentration tank for a period of time to carry out reaction, and the steps are repeated in sequence until all the sludge is conveyed into the concentration tank.
And further: the spiral conveying device in the step S4 comprises a conveying box body, wherein a conveying plate and a partition plate are arranged in the conveying box body, the two ends of the conveying plate are respectively connected with the inner wall of the conveying box body and the partition plate through connecting pieces, the conveying box body is divided into an upper space and a lower space through the conveying plate and the partition plate, wherein the upper layer space is a spiral conveying layer, the lower layer space is a belt conveying layer, the bottom of the conveying box body on the right side of the partition plate is provided with a first discharge hole, the top of the left side of the conveying box body is provided with a feed inlet, a rotating shaft is movably connected in the spiral conveying layer, the rotating shaft is provided with a helical blade, one end of the rotating shaft passes through the side wall of the conveying box body and is connected with the servo motor, the conveying plate is provided with a through hole, and the spiral conveying layer is communicated with the belt conveying layer through the through hole.
And further: the cross section of the conveying plate is arc-shaped.
And further: and a belt conveyor is arranged in the belt conveying layer and is positioned right below the through hole.
And further: the bottom of the conveying box body at the left end of the belt conveyor is provided with a second discharge hole, the second discharge hole is internally connected with the dispersing plate body through a rotating shaft, and the rotating shaft is connected with the servo motor.
And further: an electric heating pipe is also arranged in the belt conveyor.
After the structure is adopted, the spiral conveying mechanism can sieve out large impurities in the sludge, and residual moisture in the sludge can be discharged in an evaporation mode in a heating mode, so that the effect of improving the practical performance of the spiral conveying mechanism is achieved; and the design also has the advantages of simple structure, easy manufacture, practicality and high efficiency.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a structural view of a screw conveyor.
Detailed Description
The invention provides a method for optimizing the operation of a concentration tank and improving the efficiency, which is characterized by comprising the following steps: the method comprises the following steps:
s1: centralized mud storage: conveying all sludge into a sludge storage tank for storage, and ensuring the sludge inlet amount by maintaining the liquid level of a sludge storage tank to ensure the liquid level difference between the sludge storage tank and a sludge inlet pump to the maximum extent;
s2: primary lifting and concentration: conveying the sludge in the first sludge storage tank into a concentration tank by a sludge inlet pump in batches, adding a medicament into the concentration tank to fully mix and react the medicament and the sludge, and conveying the sludge subjected to primary concentration back to the sludge storage tank again under the action of the sludge inlet pump through a return pipeline;
s3: and (3) secondary lifting and concentration: conveying the sludge subjected to the step S2 into the concentration tank by a sludge inlet pump one by one again, and adding a medicament into the concentration tank to fully mix and react the medicament with the sludge;
s4: centrifuging to remove water: and (5) conveying the sludge subjected to the step S3 into a centrifugal dehydrator for dehydration through a sludge inlet pump, and conveying the dehydrated sludge into a sludge storage chamber for storage through a screw conveying device.
The batch-by-batch delivery in the steps S2 and S3 means that the first batch of sludge is reacted in the concentration tank for a period of time, and then the second batch of sludge is continuously delivered to the concentration tank for reaction, and the steps are repeated in sequence until all the sludge is delivered into the concentration tank.
The novel spiral conveying device shown in figure 1 comprises a conveying box body 1, wherein a conveying plate 5 and a partition plate 7 are arranged in the conveying box body 1, two ends of the conveying plate 5 are respectively connected to the inner wall of the conveying box body 1 and the partition plate 7 through connecting pieces 6, the conveying box body 1 is divided into an upper space and a lower space through the conveying plate 5 and the partition plate, the upper space is a spiral conveying layer, the lower space is a belt conveying layer, a first discharge hole 8 is formed in the bottom of the conveying box body 1 on the right side of the partition plate 7, a feed hole 15 is formed in the top of the left side of the conveying box body 1, a rotating shaft 3 is movably connected in the spiral conveying layer, a spiral blade 4 is mounted on the rotating shaft 3, one end of the rotating shaft 3 penetrates through the side wall of the conveying box body 1 to be connected with a servo motor 2, and a through hole, the spiral conveying layer is communicated with the belt conveying layer through a through hole, the cross section of the conveying plate 5 is arc-shaped, the partition plate 7 is fixedly connected to the bottom in the conveying box body 1 through the L-shaped plate 9, and two side walls of the L-shaped plate 9 are respectively connected with the conveying box body and the partition plate 7 through second bolts. The invention can sieve out large impurities in the sludge wrapped by the spiral conveying mechanism, and can discharge residual moisture in the sludge in an evaporation mode by a heating mode, thereby playing a role in increasing the practical performance; and the design also has the advantages of simple structure, easy manufacture, practicality and high efficiency.
A belt conveyor 12 is arranged in the belt conveying layer shown in fig. 1, the belt conveyor 12 is positioned right below the through hole, and a second discharge hole 10 is formed in the bottom of the conveying box body 1 at the left end of the belt conveyor 12.
A second discharge hole is formed in the bottom of the conveying box body 1 at the left end of the belt conveyor shown in fig. 1, the second discharge hole is connected with a dispersion plate body 11 through a rotating shaft, and the rotating shaft is connected with a servo motor; an electric heating pipe 9 is also arranged in the belt conveyor.
Claims (7)
1. A method for optimizing the operation of a concentration tank and improving the efficiency is characterized in that: the method comprises the following steps:
s1: centralized mud storage: conveying all sludge into a sludge storage tank for storage, and ensuring the sludge inlet amount by maintaining the liquid level of a sludge storage tank to ensure the liquid level difference between the sludge storage tank and a sludge inlet pump to the maximum extent;
s2: primary lifting and concentration: conveying the sludge in the first sludge storage tank into a concentration tank by a sludge inlet pump in batches, adding a medicament into the concentration tank to fully mix and react the medicament and the sludge, and conveying the sludge subjected to primary concentration back to the sludge storage tank again under the action of the sludge inlet pump through a return pipeline;
s3: and (3) secondary lifting and concentration: conveying the sludge subjected to the step S2 into the concentration tank by a sludge inlet pump one by one again, and adding a medicament into the concentration tank to fully mix and react the medicament with the sludge;
s4: centrifuging to remove water: and (5) conveying the sludge subjected to the step S3 into a centrifugal dehydrator for dehydration through a sludge inlet pump, and conveying the dehydrated sludge into a sludge storage chamber for storage through a screw conveying device.
2. The method of claim 1, wherein the method comprises the steps of: the batch-by-batch conveying in the steps S2 and S3 means that the first batch of sludge is conveyed to the concentration tank continuously after reacting in the concentration tank for a period of time to carry out reaction, and the steps are repeated in sequence until all the sludge is conveyed into the concentration tank.
3. The method of claim 1, wherein the method comprises the steps of: the spiral conveying device in the step S4 comprises a conveying box body, wherein a conveying plate and a partition plate are arranged in the conveying box body, the two ends of the conveying plate are respectively connected with the inner wall of the conveying box body and the partition plate through connecting pieces, the conveying box body is divided into an upper space and a lower space through the conveying plate and the partition plate, wherein the upper layer space is a spiral conveying layer, the lower layer space is a belt conveying layer, the bottom of the conveying box body on the right side of the partition plate is provided with a first discharge hole, the top of the left side of the conveying box body is provided with a feed inlet, a rotating shaft is movably connected in the spiral conveying layer, the rotating shaft is provided with a helical blade, one end of the rotating shaft passes through the side wall of the conveying box body and is connected with the servo motor, the conveying plate is provided with a through hole, and the spiral conveying layer is communicated with the belt conveying layer through the through hole.
4. The method of claim 3, wherein the method comprises the steps of: the cross section of the conveying plate is arc-shaped.
5. The method of claim 3, wherein the method comprises the steps of: and a belt conveyor is arranged in the belt conveying layer and is positioned right below the through hole.
6. The method of claim 3, wherein the method comprises the steps of: the bottom of the conveying box body 1 at the left end of the belt conveyor is provided with a second discharge hole, the second discharge hole is internally connected with a dispersion plate body through a rotating shaft, and the rotating shaft is connected with a servo motor.
7. The method of claim 3, wherein the method comprises the steps of: an electric heating pipe is also arranged in the belt conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911418470.9A CN111116007A (en) | 2019-12-31 | 2019-12-31 | Method for optimizing operation of concentration tank and improving efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911418470.9A CN111116007A (en) | 2019-12-31 | 2019-12-31 | Method for optimizing operation of concentration tank and improving efficiency |
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| Publication Number | Publication Date |
|---|---|
| CN111116007A true CN111116007A (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911418470.9A Pending CN111116007A (en) | 2019-12-31 | 2019-12-31 | Method for optimizing operation of concentration tank and improving efficiency |
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| CN (1) | CN111116007A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0460214A1 (en) * | 1989-02-23 | 1991-12-11 | Kurita Water Industries Ltd. | Flocculating apparatus |
| CN101234841A (en) * | 2008-01-02 | 2008-08-06 | 广州普得环保设备有限公司 | Sludge concentration dehydration method |
| JP4177752B2 (en) * | 2003-12-26 | 2008-11-05 | 株式会社東芝 | Sludge drying equipment |
| CN101525209A (en) * | 2008-03-05 | 2009-09-09 | 齐继红 | Mechanical dehydration half-drying system for sludge |
| CN102167490A (en) * | 2011-05-23 | 2011-08-31 | 江苏恒亮离心机制造有限公司 | Integrated treatment method for thickening, drying and purifying municipal sludge |
| CN202808557U (en) * | 2012-07-19 | 2013-03-20 | 南京林业大学 | Sludge dewatering device of sewage plant |
| CN103693840A (en) * | 2014-01-21 | 2014-04-02 | 益阳首创水务有限责任公司 | Sludge storage tank and sludge concentration process |
| CN208018940U (en) * | 2018-01-31 | 2018-10-30 | 辽宁水利职业学院 | A kind of soil screening plant |
-
2019
- 2019-12-31 CN CN201911418470.9A patent/CN111116007A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0460214A1 (en) * | 1989-02-23 | 1991-12-11 | Kurita Water Industries Ltd. | Flocculating apparatus |
| JP4177752B2 (en) * | 2003-12-26 | 2008-11-05 | 株式会社東芝 | Sludge drying equipment |
| CN101234841A (en) * | 2008-01-02 | 2008-08-06 | 广州普得环保设备有限公司 | Sludge concentration dehydration method |
| CN101525209A (en) * | 2008-03-05 | 2009-09-09 | 齐继红 | Mechanical dehydration half-drying system for sludge |
| CN102167490A (en) * | 2011-05-23 | 2011-08-31 | 江苏恒亮离心机制造有限公司 | Integrated treatment method for thickening, drying and purifying municipal sludge |
| CN202808557U (en) * | 2012-07-19 | 2013-03-20 | 南京林业大学 | Sludge dewatering device of sewage plant |
| CN103693840A (en) * | 2014-01-21 | 2014-04-02 | 益阳首创水务有限责任公司 | Sludge storage tank and sludge concentration process |
| CN208018940U (en) * | 2018-01-31 | 2018-10-30 | 辽宁水利职业学院 | A kind of soil screening plant |
Non-Patent Citations (1)
| Title |
|---|
| 王彝季: "高炉煤气洗涤水污泥一次沉淀浓缩法", 《冶金动力》 * |
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Application publication date: 20200508 |
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