CN202667197U - Pulverized coal filter cleaning and recycling device - Google Patents
Pulverized coal filter cleaning and recycling device Download PDFInfo
- Publication number
- CN202667197U CN202667197U CN2012202793396U CN201220279339U CN202667197U CN 202667197 U CN202667197 U CN 202667197U CN 2012202793396 U CN2012202793396 U CN 2012202793396U CN 201220279339 U CN201220279339 U CN 201220279339U CN 202667197 U CN202667197 U CN 202667197U
- Authority
- CN
- China
- Prior art keywords
- negative pressure
- filter
- coal
- nitrogen gas
- nitrogen
- 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.)
- Expired - Fee Related
Links
- 239000003245 coal Substances 0.000 title claims abstract description 29
- 238000004140 cleaning Methods 0.000 title abstract description 10
- 238000004064 recycling Methods 0.000 title 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000000843 powder Substances 0.000 claims abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims description 19
- 239000000428 dust Substances 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 2
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 3
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000002817 coal dust Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- Y02W30/54—
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model provides a buggy filter cleans recovery unit is connected with a negative pressure recovery breathing pipe and a nitrogen gas intake pipe respectively on buggy filter, and the negative pressure is retrieved the breathing pipe other end and is connected on the coal pulverizer negative pressure returns the powder pipeline through manual gate valve, and the nitrogen gas intake pipe other end is through manual gate valve and nitrogen gas pipe connection. The utility model has simple structure, needs no additional equipment and control mechanism, and has two functions of recovery and cleaning; a high-efficiency filtering system is adopted, pure suction type operation is realized, and secondary dust raising is avoided; the recovered coal powder can be reused, so that the aim of reducing the cost is fulfilled; the dust collection range is wide, the absorption rate is high, and zero emission is realized; the service life of the filter can be greatly prolonged, the filter can be replaced once in 3 months to 18 months, the consumption of spare parts is reduced, and the use cost is reduced.
Description
Technical field
The utility model belongs to the mechanical pipe apparatus field, relates in particular to a kind of dust cleaning retracting device for the pulverized coal injection in blast furnace filter.
Background technology
Filter is indispensable key equipment in the blast-furnace coal powder injection process.Owing to being mixed with thick, bulky grain thing and other braided fiber, wood chip foreign material in the raw coal, line clogging occurs often in coal injection production, for fear of stopping coal cleaning pipeline, therefore on each coal powder injection house steward of system, be provided with a two pass coal fine filter, adopt the mode of alternately switching, all the time guarantee that a coal powder injection pipeline is unimpeded, play the purpose of continuous coal powder injection.
But in the actual production process, because inside was all the time with nitrogen and the remaining coal dust (20kg) of certain pressure when the two pass coal fine filter switched, all need the cleaning work through 6-8 time every day, this with pressure, the frequent opening and closing ball valve for filter of band dust, not only accelerate the wearing and tearing of valve, increased spare parts consumption and expense expenditure; And the nitrogen that is accompanied by certain pressure discharges, and remaining coal dust also is emitted in the atmosphere, and nitrogen amount increases moment in the factory building, the injury that very easily suffocates, and cause a large amount of suspension coal dusts to fly upward, contaminated environment and air, serious harm worker physical and mental health.In addition, because the physicochemical property characteristics of coal, bituminous coal powder volatilizees greater than 10%, the accident of just very easily blasting, and consequence is very serious.
Summary of the invention
The utility model aims to provide a kind of simple, and small investment, instant effect can be effectively reclaim a large amount of dust, and environmental contamination reduction prolongs filter service life, reduces the coal fine filter cleaning retracting device of cost.
For this reason, the solution taked of the utility model is:
A kind of coal fine filter cleaning retracting device, it is characterized in that, on coal fine filter, be connected with respectively a negative pressure and reclaim air intake duct and a nitrogen air inlet pipe, negative pressure reclaims the air intake duct other end and is connected on the coal pulverizer negative pressure powder retrieving pipe road, the nitrogen air inlet pipe other end is connected with nitrogen pipeline, and negative pressure reclaims on air intake duct and the nitrogen air inlet pipe and is equipped with hand sluice valve.
Using method of the present utility model and beneficial effect are:
When need reclaiming in the filter dust, the two ends cut-out that first filter and winding-up tank is connected with the blast furnace distributor makes filter form the band pressure space of sealing.Open the hand sluice valve on the negative pressure recovery air intake duct, utilize the negative pressure in coal pulverizer negative pressure powder retrieving pipe road, the filter internal pressure is discharged.Open hand sluice valve on the nitrogen air inlet pipe, can clean the remaining coal dust in the clean filter junction chamber space.Close hand sluice valve on the nitrogen air inlet pipe, open the hand sluice valve on the negative pressure recovery air intake duct, utilize the rotation of medium-speed pulverizer row coal draught fan impeller, in filter, form air current flow and cause vacuum, utilize the suction inspiration coal dust of supplemental air flow and other braided fiber, wood chip foreign material etc.
The utility model is simple in structure, convenient operation, and small investment, how instant effect need not to increase equipment and controlling organization; Employing has high-efficiency filtration systems, and only import but no export is guaranteed in the pure-suction type operation, without reentrainment of dust; How power is realized zero power operation, and the coal dust of recovery can reuse, and reaches the purpose that reduces cost; Good dedusting effect, the advantages such as (clean absorption rate 〉=99%) that has that the dust suction scope is wide, clean absorption rate is high, and reached zero-emission.Simultaneously, because the utility model when opening filter deashing valve, does not have air-flow through inner, without extra wearing and tearing, thereby filter was changed by 3 months once brought up to replacing in 18 months once the service life that can greatly improve filter, reduce spare parts consumption, reduced use cost.
Description of drawings
Accompanying drawing is coal fine filter cleaning retracting device installment state schematic diagram:
Among the figure: negative pressure powder retrieving pipe road 1, air intake duct hand sluice valve 2, negative pressure reclaim air intake duct 3, winding-up pipeline 4, filter 5, coal dust distribution duct 6, nitrogen air inlet pipe 7, air inlet pipe hand sluice valve 8, nitrogen pipeline 9.
The specific embodiment
By accompanying drawing as seen, the utility model coal fine filter cleaning retracting device is to connect winding-up pipeline 4 at original filter 5 one ends, the other end connects on the basis of coal dust distribution duct 6, on coal fine filter 5, be connected with respectively again a negative pressure and reclaim air intake duct 3 and a nitrogen air inlet pipe 7, the other end that negative pressure reclaims air intake duct 3 is connected on the negative pressure powder retrieving pipe road 1 of coal pulverizer, reclaims air intake duct 3 in the negative pressure near filter 5 one sides an air intake duct hand sluice valve 2 is housed.The other end of nitrogen air inlet pipe 7 is connected on the nitrogen pipeline 9, also is provided with air inlet pipe hand sluice valve 8 on the nitrogen air inlet pipe 7.
Claims (1)
1. a coal fine filter cleans retracting device, it is characterized in that, on coal fine filter, be connected with respectively a negative pressure and reclaim air intake duct and a nitrogen air inlet pipe, negative pressure reclaims the air intake duct other end and is connected on the coal pulverizer negative pressure powder retrieving pipe road, the nitrogen air inlet pipe other end is connected with nitrogen pipeline, and negative pressure reclaims on air intake duct and the nitrogen air inlet pipe and is equipped with hand sluice valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202793396U CN202667197U (en) | 2012-06-14 | 2012-06-14 | Pulverized coal filter cleaning and recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202793396U CN202667197U (en) | 2012-06-14 | 2012-06-14 | Pulverized coal filter cleaning and recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202667197U true CN202667197U (en) | 2013-01-16 |
Family
ID=47488130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202793396U Expired - Fee Related CN202667197U (en) | 2012-06-14 | 2012-06-14 | Pulverized coal filter cleaning and recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202667197U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962351A (en) * | 2014-04-21 | 2014-08-06 | 鞍钢股份有限公司 | Cleaning method for chemical raw material conveying pipeline |
-
2012
- 2012-06-14 CN CN2012202793396U patent/CN202667197U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962351A (en) * | 2014-04-21 | 2014-08-06 | 鞍钢股份有限公司 | Cleaning method for chemical raw material conveying pipeline |
| CN103962351B (en) * | 2014-04-21 | 2017-04-26 | 鞍钢股份有限公司 | Cleaning method for chemical raw material conveying pipeline |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202824051U (en) | Central dust collection device | |
| CN201140008Y (en) | Positive pressure inverse air draft bag-type dust-collector | |
| CN211945447U (en) | Blowing-sucking type gas collection dust removal device | |
| CN202667197U (en) | Pulverized coal filter cleaning and recycling device | |
| CN108970319A (en) | A kind of energy conservation and environmental protection cleaner | |
| CN207655319U (en) | A kind of electrostatic precipitation system | |
| CN207628099U (en) | A kind of movable type polishing dust remover | |
| CN203702040U (en) | Drill dust collector capable of cleaning filter elements automatically | |
| CN103239815B (en) | Powered air filtering mouth mask | |
| CN206045637U (en) | A kind of powder collection device | |
| CN205400943U (en) | Pneumatics is patted and is loose gas blowout and blows self -cleaning formula air cleaner | |
| CN204637882U (en) | A kind of vehicle carried dust cleaning apparatus | |
| CN203669800U (en) | Dust collection and slag removing system of drilling machine | |
| CN203990198U (en) | A kind of coal-burning boiler staged electric-bag complex dust collector | |
| CN206081925U (en) | Mining excavator deduster of filter cylinder | |
| CN204121888U (en) | A kind of self-cleaning air filter apparatus | |
| CN203303524U (en) | Air filtration mask | |
| CN203170135U (en) | Low pressure pulse cloth bag deduster | |
| CN203724961U (en) | Feeding dust-removing recycling system | |
| CN208287691U (en) | A kind of cabinet type deduster enhancing wind pressure | |
| CN203582006U (en) | Negative-pressure feeding machine | |
| CN207024892U (en) | A kind of offline pulsed jet cloth filter | |
| CN206893666U (en) | Accumulator box novel ventilation device | |
| CN205965329U (en) | Pulse bag house dust collector device | |
| CN205461469U (en) | Strain locellus blowback bag collector in inertia |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20180614 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |