CN1704342A - Preliminary sedimentation tank bucket back-flushing method - Google Patents
Preliminary sedimentation tank bucket back-flushing method Download PDFInfo
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- CN1704342A CN1704342A CN 200410046172 CN200410046172A CN1704342A CN 1704342 A CN1704342 A CN 1704342A CN 200410046172 CN200410046172 CN 200410046172 CN 200410046172 A CN200410046172 A CN 200410046172A CN 1704342 A CN1704342 A CN 1704342A
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- slurry transportation
- mud
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- bucket
- sedimentation tank
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Abstract
The invention relates to a method for backwashing baggers of preliminary sedimentation tank which comprises the following operational steps, closing the mud valve of the previous slurry conveying unit, and closing the mud valve of the next slurry conveying unit, halting the operation of the pump package for the next mud conveying unit, and opening the backwashing valve of the previous mud conveying unit, starting the operation of the pump package for the next mud conveying unit, and injecting the mud with water into the bagger of the next mud conveying unit through the backwashing pipes and the backwashing valve.
Description
Technical field
The present invention relates to a kind of preliminary sedimentation tank bucket back-flushing method, this method utilizes the sewage of preliminary sedimentation tank self that sludge bucket is carried out counterflush.
Background technology
The sewage of common sewage work is through behind the aerated grit chamber; particle diameter is removed substantially greater than the sand grains of 0.2mm; but also have the part particle diameter can not remove fully, enter follow-up processing unit with water outlet, and be deposited in preliminary sedimentation tank irrigation channel and the bucket less than the fine sand of 0.2mm.These sand-grain volumes are little, quality heavy, flowability is poor, be difficult to processing, will stop up preliminary sedimentation tank water-in and bucket mud discharging mouth after a while, and influence is operation normally.Therefore annual spring, Qiu Liangji, sewage work all will arrange the time specially and cut off the water in turn, the organizational strength sand removal, at ordinary times, the preliminary sedimentation tank bucket stops up and also must stop into manually to draw clearly after the water emptying when serious, both labor intensive material resources, the normal operation of influence again.Therefore, need to propose a kind of preliminary sedimentation tank bucket back-flushing method.
Summary of the invention
The object of the present invention is to provide a kind of preliminary sedimentation tank bucket back-flushing method, this method utilizes the sewage of preliminary sedimentation tank self that sludge bucket is carried out counterflush.
The objective of the invention is to realize: a kind of preliminary sedimentation tank bucket back-flushing method by following technical proposals, use preliminary sedimentation tank slurry transportation pipeline to carry out, a plurality of buckets on the described preliminary sedimentation tank are set up in parallel, described bucket bottom is provided with many and takes out the mud arm, this arm is provided with the arm valve, at least constitute a slurry transportation unit by two buckets, take out the mud arm and be connected in parallel on the mud person in charge for many in this slurry transportation unit, this mud is responsible for head end and is provided with pulverizer and slurry transportation pump group successively, an outlet of this slurry transportation pump group is communicated with the mud concentration basin by the spoil disposal valve, and another outlet of this slurry transportation pump group is communicated with the tail end that the mud in the back slurry transportation unit is responsible for by back flushing pipeline and back flush valves; Utilize the unitary mud of previous slurry transportation that the bucket in the back slurry transportation unit is carried out counterflush, its operating process is:
A, close the unitary spoil disposal valve of previous slurry transportation, and close the unitary spoil disposal valve of a back slurry transportation;
B, the unitary pump group of a back slurry transportation out of service, and open the unitary back flush valves of previous slurry transportation;
C, the unitary pump group of the startup previous slurry transportation of operation are injected into muddy water in the back unitary bucket of slurry transportation by back flushing pipeline and back flush valves the bucket of clear and coherent obstruction.
Compared with the prior art the present invention has following advantage:
1, when sludge bucket obstruction spoil disposal is smooth, uses counter-flushing pipeline to wash, do not need to stop the operation of whole preliminary sedimentation tank, for a long time emptying.
2, the present invention utilizes the sewage of preliminary sedimentation tank self that sludge bucket is carried out counterflush, has saved and has manually drawn the heavy physical labor that digs.
3, utilization of the present invention is faced the sludge pump group mutually and is recoiled, and need not stop into water and can eliminate the obstruction of bucket also without emptying, reduces the influence to operation to greatest extent.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1, system layout synoptic diagram of the present invention
Embodiment
Referring to Fig. 1, preliminary sedimentation tank bucket back-flushing method of the present invention, use preliminary sedimentation tank slurry transportation pipeline to carry out, a plurality of buckets 1 on the described preliminary sedimentation tank are set up in parallel, described bucket bottom is provided with many and takes out mud arm 2, this arm is provided with arm valve 3, at least constitute a slurry transportation unit 4 by two buckets, take out the mud arm and be connected in parallel on the mud person in charge 5 for many in this slurry transportation unit, this mud is responsible for head end and is provided with pulverizer 6 and slurry transportation pump group 7 successively, this slurry transportation pump group is provided with two slush pump, an outlet of this slurry transportation pump group is communicated with mud concentration basin 9 by spoil disposal valve 8, and the tail end that another of this slurry transportation pump group exports by the mud person in charge 15 in back flushing pipeline 10 and back flush valves 11 and the back slurry transportation unit is communicated with; Utilize the unitary mud of previous slurry transportation that the bucket in the back slurry transportation unit is carried out counterflush, its operating process is:
A, close the unitary spoil disposal valve 8 of previous slurry transportation, and close the unitary spoil disposal valve 18 of a back slurry transportation;
B, the unitary pump group 17 of a back slurry transportation out of service, and open the unitary back flush valves 11 of previous slurry transportation;
C, the unitary pump group 7 of the startup previous slurry transportation of operation, the unitary muddy water of this slurry transportation is injected among the unitary mud person in charge of a back slurry transportation by back flushing pipeline and back flush valves, and then by take out the mud arm, the arm valve is injected in the back unitary bucket of slurry transportation, the bucket of clear and coherent obstruction.
Claims (1)
1, a kind of preliminary sedimentation tank bucket back-flushing method, it is characterized in that: use preliminary sedimentation tank slurry transportation pipeline to carry out, a plurality of buckets on the described preliminary sedimentation tank are set up in parallel, described bucket bottom is provided with many and takes out the mud arm, this arm is provided with the arm valve, at least constitute a slurry transportation unit by two buckets, take out the mud arm and be connected in parallel on the mud person in charge for many in this slurry transportation unit, this mud is responsible for head end and is provided with pulverizer and slurry transportation pump group successively, an outlet of this slurry transportation pump group is communicated with the mud concentration basin by the spoil disposal valve, and another outlet of this slurry transportation pump group is communicated with the tail end that the mud in the back slurry transportation unit is responsible for by back flushing pipeline and back flush valves; Utilize the unitary mud of previous slurry transportation that the bucket in the back slurry transportation unit is carried out counterflush, its operating process is:
A, close the unitary spoil disposal valve of previous slurry transportation, and close the unitary spoil disposal valve of a back slurry transportation;
B, the unitary pump group of a back slurry transportation out of service, and open the unitary back flush valves of previous slurry transportation;
C, the unitary pump group of the startup previous slurry transportation of operation are injected into muddy water in the back unitary bucket of slurry transportation by back flushing pipeline and back flush valves the bucket of clear and coherent obstruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410046172 CN1704342A (en) | 2004-06-03 | 2004-06-03 | Preliminary sedimentation tank bucket back-flushing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410046172 CN1704342A (en) | 2004-06-03 | 2004-06-03 | Preliminary sedimentation tank bucket back-flushing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1704342A true CN1704342A (en) | 2005-12-07 |
Family
ID=35576238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410046172 Pending CN1704342A (en) | 2004-06-03 | 2004-06-03 | Preliminary sedimentation tank bucket back-flushing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN1704342A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806300A (en) * | 2010-04-26 | 2010-08-18 | 云南大红山管道有限公司 | Underflow pump blowoff valve device and switching method thereof |
-
2004
- 2004-06-03 CN CN 200410046172 patent/CN1704342A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806300A (en) * | 2010-04-26 | 2010-08-18 | 云南大红山管道有限公司 | Underflow pump blowoff valve device and switching method thereof |
| CN101806300B (en) * | 2010-04-26 | 2013-04-17 | 云南大红山管道有限公司 | Underflow pump blowoff valve device and switching method thereof |
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| AD01 | Patent right deemed abandoned | ||
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