CN107281839A - A kind of ash removal method of deduster - Google Patents
A kind of ash removal method of deduster Download PDFInfo
- Publication number
- CN107281839A CN107281839A CN201710603328.6A CN201710603328A CN107281839A CN 107281839 A CN107281839 A CN 107281839A CN 201710603328 A CN201710603328 A CN 201710603328A CN 107281839 A CN107281839 A CN 107281839A
- Authority
- CN
- China
- Prior art keywords
- bin
- deashing
- storehouse
- line valve
- deduster
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
Abstract
A kind of ash removal method of deduster, belongs to all kinds of deduster deashing operating technology fields.The present invention is arranged on when selected bin is cut into manual deashing pattern, other bins are still in automatic ash removing state, when deashing process order goes to selected storehouse, due to the storehouse is had been chosen as into manual mode, therefore the Off-line valve in the storehouse is not turned off, the storehouse is also there will be no deashing action, and deashing execution sequence has skipped the storehouse.The signal that manually selects in selected storehouse is replaced this storehouse Off-line valve and reaches a signal simultaneously, goes the Off-line valve for triggering next bin to close, it is ensured that the deashing action of next storehouse and later each bin is carried out by original automated manner.The present invention solves the drawbacks of deashing of all bins must be operated wholly off by deduster when changing dust-removal cloth-bag, greatly improves the efficiency of dust collection during maintenance, and environmental benefit is notable.
Description
Technical field
The invention belongs to all kinds of deduster deashing operating technology fields, specifically providing one kind can realize to deduster
Individual or certain several ash silo are cut to manual deashing pattern, the method that other bins remain in that automatic ash removing mode.
Background technology
Current deduster dust-removing control system is automatic sequence deashing mode of operation, i.e., after deashing operation starts, by
First bin starts order automatic ash removing, stops after to the last a bin deashing is finished, it is impossible to realize some or certain
Several specific bins are cut to manual purge mode.So the drawbacks of, which is that, needs to change removing in a certain bin or a few bins
During dirt cloth bag, deduster soot cleaning system must just be stopped, whole bins all stop deashing, so that removing during result in maintenance
Dirt poor effect, environmental issue is protruded.In the case, such a drawback is effectively eliminated using the method, it is to avoid due to
The situation that the deduster tail gas that causes carries a large amount of dusts secretly is overhauled, the maintenance on time of equipment had both been ensure that, more drastically increase
Environmental benefit during maintenance.
The content of the invention
It is an object of the invention to being normally carried out that deashing during ensureing deduster maintenance is operated, removed during improving maintenance
The efficiency of dust collection of dirt device, is reduced due to overhauling the influence caused to atmospheric environment.
Former purge mode：
Original deduster purge mode only has " timing automatic deashing " and " differential pressure automatic ash removing " two ways, this two kinds
Mode is automatic ash removing, can only carry out deashing operation to each bin order, as long as starting, in the case where not putting stopping only
Each storehouse deashing such as energy could stop after finishing, even if intermediate point stops, and the bin in storehouse number can not be carried out clearly after maintenance storehouse
Ash manipulation.After restarting, deashing operation can only be proceeded by from first storehouse again.
Present disclosure：A kind of ash removal method of deduster, its step is as follows：
Step 1: " automatic ash removing " pattern and " manual deashing " pattern are respectively arranged with each bin of deduster,
The Off-line valve of each bin has " open mode " and " closed mode " simultaneously；
Step 2: being " manual deashing " pattern by bin status modifier for the bin for needing to overhaul；Finished for maintenance
Bin, by bin status modifier be " automatic ash removing " pattern；
Step 3: when deashing starts, being cleaned one by one by bin order, now n=1；
Step 4: when being swept into n-th of bin, judging the deashing pattern of n-th of bin；
Step 5: if n-th of bin is automatic ash removing state, now n-th of bin Off-line valve is closed, and is entered
The cleaning works of n-th of bin of row, after cleaning is finished, is adjusted to open mode, into step by the Off-line valve of n-th of bin
Six；If the deashing pattern of n-th of bin is manual deashing state, now n-th of bin Off-line valve is in open mode, now
To n-th of bin without sweeping, into step 6；
Step 6: judging whether n is more than or equal to m, m is the bin number of deduster；If n is more than or equal to m, just clear
Grey end-of-job；If n is less than m, n=n+1, i.e. n from a number is increased, into step 4.
It is arranged on when selected bin is cut into manual deashing pattern, other bins work as deashing still in automatic ash removing state
When procedural order goes to selected storehouse, due to the storehouse is had been chosen as into manual mode, therefore the Off-line valve in the storehouse is not turned off, the storehouse
There will be no deashing action, deashing execution sequence has skipped the storehouse.Simultaneously by selected storehouse manually select signal replace this storehouse from
Line valve reaches a signal, goes the Off-line valve for triggering next bin to close, it is ensured that the deashing action of next storehouse and later each bin is pressed
Original automated manner is carried out.It is achieved thereby that maintenance bin operated without deashing, while do not influence again maintenance during other
The normal operation of bin deashing operation, ensure that the efficiency of deashing during overhauling to greatest extent, overhaul selected storehouse after finishing
Purge mode is elected as automatically again, and normal automatic ash removing operator scheme is put into again.
The present invention solves deduster must be wholly off by the deashing operation of all bins when changing dust-removal cloth-bag
Drawback, greatly improves the efficiency of dust collection during maintenance, and environmental benefit is notable.
Brief description of the drawings：
Fig. 1：Former deashing schematic flow sheet.
Fig. 2：This method deashing schematic flow sheet.
Embodiment
A kind of specific implementation method of the ash removal method of deduster is as follows：
1st, under deduster normal operating condition, each storehouse is in automatic ash removing pattern, after deashing operation starts, by first
Individual bin starts, and order is acted backward, the Off-line valve opening signal in previous storehouse, and the triggering closed as next storehouse Off-line valve is believed
Number, the to the last deashing release of a bin, Off-line valve after opening whole deashing process terminate.When needing, maintenance is a certain
During individual or certain several storehouse, it would be desirable to which the Off-line valve of the bin of maintenance is cut to manual mode, manual ringing replaces the Off-line valve in this storehouse
Reaching a signal goes the Off-line valve for triggering next storehouse to close, and other bin deashing patterns are constant, are still automated manner.
2nd, the bin for needing to overhaul is cut to after manual mode, starts soot cleaning system by original normal mode of operation, be
After system starts, deashing operation is performed in order, and when going to selected bin, the Off-line valve that manual ringing can cut off the bin is closed
Instruction is closed, the Off-line valve in this storehouse is not turned off, deashing action would not also be performed, while manual ringing is replaced into this storehouse Off-line valve
Reach a signal, the Off-line valve for going to trigger next storehouse is closed so that selected storehouse is skipped in deashing action, directly perform next storehouse and
The deashing operation of later bin.So, bin is overhauled while being normally carried out what the deashing for ensureing non-maintenance bin was acted
Deashing action without.
3rd, after maintenance terminates, manual bin switchback automatic mode again is cut to during by maintenance, makes maintenance bin and phase
The linkage signal of adjacent bin reverts to original Off-line valve and closes signal in place again, and original automatic ash removing process is put into again.
Below by taking certain coal chemical industry enterprises dry coke quenching regional environment dedusting as an example.
1st, the deduster of environmental dust removal totally 12 ash silos, each 2 rooms in storehouse, altogether 24 Off-line valves.Normal operating condition
Under, each bin is in automatic ash removing pattern, and after deashing operation starts, by the 1# rooms of 1# storehouses, the Off-line valve of 1# storehouses 1# rooms is opened
Signal, the trigger signal closed as 1# storehouses 2# rooms Off-line valve, are sequentially acted, to the last 12# storehouses 2# rooms is clear backward in place
Whole deashing process terminates after grey release, Off-line valve opening.Exemplified by needing to overhaul by 3# storehouses, when needing maintenance 3# storehouses,
1# the and 2# rooms Off-line valve in 3# storehouses is cut to manual mode, other bin deashing patterns are constant, are still automated manner.Believe manually
The Off-line valve of number this room of replacement reaches a signal and goes the Off-line valve for triggering lower 4# storehouses 1# rooms to close so that deashing operation continue into
OK.
2nd, 1# the and 2# rooms Off-line valve in 3# storehouses is cut after a manual mode, deashing system is started by original normal mode of operation
System, after system starts, performs deashing operation, when the deashing release of 2# storehouses 2# rooms, after Off-line valve is opened, due to manual in order
Signal can cut off the out code of 3# storehouses 1# rooms Off-line valve, and the Off-line valve of 1# rooms is not turned off, and deashing action would not also be held
OK, while the manual ringing of 1# rooms is reached into a signal instead of 1# rooms Off-line valve, because 2# rooms are also at manual mode, therefore 2# rooms
Off-line valve do not turn off yet, deashing action do not perform, 3# storehouses 2# rooms manual ringing is reached into a signal instead of Off-line valve and goes to touch
The Off-line valve for sending out 4# storehouses 1# rooms is closed, and deashing action continues executing with order and performed, so that deashing action has skipped the two of 3# storehouses
Individual room.So, while the deashing action for ensureing other bins can be normally carried out, the deashing action of two rooms in 3# storehouses is not
Can carry out.
3rd, after maintenance terminates, by the Off-line valve of 3# storehouses 1# and 2# rooms again switchback automatic mode, the 2# rooms in 2# storehouses are reached
Position signal is closed as linkage signal triggering 3# storehouses 1# rooms Off-line valve again, and the Off-line valve of 3# storehouses 1# rooms reaches a signal and made again
For linkage signal triggering 2# rooms, the Off-line valve of 3# storehouses 2# rooms reaches a signal and is used as linkage signal triggering 4# storehouses 1# rooms offline again
Valve is closed.Original automatic ash removing pattern is thus reverted to again.
Claims (1)
1. a kind of ash removal method of deduster, it is characterised in that：
Step 1: being respectively arranged with " automatic ash removing " pattern and " manual deashing " pattern in each bin of deduster, simultaneously
The Off-line valve of each bin is provided with " open mode " and " closed mode "；
Step 2: being " manual deashing " pattern by bin status modifier for the bin for needing to overhaul；The storehouse finished for maintenance
Room, is " automatic ash removing " pattern by bin status modifier；
Step 3: when deashing starts, being cleaned one by one by bin order, now n=1；
Step 4: when being swept into n-th of bin, judging the deashing pattern of n-th of bin；
Step 5: if n-th of bin is automatic ash removing state, now n-th of bin Off-line valve is closed, and carries out the
The cleaning works of n bin, after cleaning is finished, is adjusted to open mode, into step 6 by the Off-line valve of n-th of bin；Such as
Really the deashing pattern of n-th of bin is manual deashing state, and now n-th of bin Off-line valve is in open mode, now to n-th
Individual bin is without sweeping, into step 6；
Step 6: judging whether n is more than or equal to m, m is the bin number of deduster；If n is more than or equal to m, firm ashman
Work terminates；If n is less than m, n=n+1, into step 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710603328.6A CN107281839A (en) | 2017-07-22 | 2017-07-22 | A kind of ash removal method of deduster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710603328.6A CN107281839A (en) | 2017-07-22 | 2017-07-22 | A kind of ash removal method of deduster |
Publications (1)
| Publication Number | Publication Date |
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| CN107281839A true CN107281839A (en) | 2017-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710603328.6A Pending CN107281839A (en) | 2017-07-22 | 2017-07-22 | A kind of ash removal method of deduster |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113680159A (en) * | 2021-08-27 | 2021-11-23 | 济南环陶环保工程有限公司 | Bag-type dust collector back-blowing control method suitable for dry quenching environment dust removal system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104147874A (en) * | 2014-07-29 | 2014-11-19 | 光大环保（中国）有限公司 | Control method and control system for bag-type dust collector |
| CN105233588A (en) * | 2015-11-17 | 2016-01-13 | 光大环保技术研究院（深圳）有限公司 | Control system and method used for pulse dust removal of bag-type dust remover |
| CN105709511A (en) * | 2016-01-19 | 2016-06-29 | 中国矿业大学 | Method and device for improving dust removal effect and explosion-proof performance of dust remover |
-
2017
- 2017-07-22 CN CN201710603328.6A patent/CN107281839A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104147874A (en) * | 2014-07-29 | 2014-11-19 | 光大环保（中国）有限公司 | Control method and control system for bag-type dust collector |
| CN105233588A (en) * | 2015-11-17 | 2016-01-13 | 光大环保技术研究院（深圳）有限公司 | Control system and method used for pulse dust removal of bag-type dust remover |
| CN105709511A (en) * | 2016-01-19 | 2016-06-29 | 中国矿业大学 | Method and device for improving dust removal effect and explosion-proof performance of dust remover |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113680159A (en) * | 2021-08-27 | 2021-11-23 | 济南环陶环保工程有限公司 | Bag-type dust collector back-blowing control method suitable for dry quenching environment dust removal system |
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Application publication date: 20171024 |