CN1818079A - Gas pressurizing and back-flushing apparatus and process for externally filtering dust collecting and distributing of blast furnace - Google Patents
Gas pressurizing and back-flushing apparatus and process for externally filtering dust collecting and distributing of blast furnace Download PDFInfo
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- CN1818079A CN1818079A CN 200610012484 CN200610012484A CN1818079A CN 1818079 A CN1818079 A CN 1818079A CN 200610012484 CN200610012484 CN 200610012484 CN 200610012484 A CN200610012484 A CN 200610012484A CN 1818079 A CN1818079 A CN 1818079A
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- gas
- blowback
- water
- valve
- oil separator
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Abstract
A blast furnace gas dedusting backblowing with the gas forcing backblowing equipment and the technology are provided in the invention. The equipment is made up of the high active cooler, the oil water separator, the pump valve, the reducing valve, the air tank, the conduit, the gas compression pump, the oil water separator, the fluctuating check valve and the gas tank. The technology can use the gas to backblow instead of the N2. So it can save the cost and be easy to do.
Description
One, technical field:
The present invention relates to a kind of coal gas pressurization blowback equipment and technology thereof, particularly a kind of blast furnace gas externally filtering dust collecting blowback adapted coal gas pressurization blowback equipment and technology thereof.
Two, background technology:
At present, at iron work, because N
2Not enough or do not have a N
2Source of the gas, filter or gas dust removal system can not maybe can not guarantee the N of 24 hours every days outward
2Supply, thus when the dedusting blowback can the time stopping time hold and maybe can not select outside filter method dedusting of blast furnace gas processing unit for use, influenced the ordinary production of blast furnace, this is the deficiencies in the prior art.
Three, summary of the invention:
The objective of the invention is to invent a kind of blast furnace gas externally filtering dust collecting blowback adapted coal gas pressurization blowback equipment and technology thereof, in order to solve N
2Not enough or do not have a N
2Maybe can't use blast furnace gas externally filtering dust collecting processing unit problem and can't work.
Purpose of the present invention can realize by following embodiment: blowback equipment of the present invention is by high-effect cooling device, water-and-oil separator, pump valve, reducing valve, gas-holder, pipeline, gas compressor, water-and-oil separator second, lift check valve and pressurization back gas tank constitute, it is characterized in that the preceding termination gas inlet of water cooler, thereafter termination water-and-oil separator front end, water-and-oil separator rear end access valve front end, termination reducing valve front end behind the ball valve, another ball valve front end of termination behind the reducing valve, termination gas-holder front end behind another ball valve, pipe nipple road behind the gas-holder, the pipeline the other end is connected with the gas compressor inlet mouth, the gas compressor air outlet is connected with water-and-oil separator second front end, termination lift check valve front end after the water-and-oil separator second, termination pressurization back gas tank inlet end behind the lift check valve, pressurization back gas tank gas exit connects the blowback total pipeline; In addition, the front and back end of reducing valve is in the rear end of the front end of ball valve and another ball valve and be connected to ball valve third; In the rear end of the inlet mouth of gas compressor and water-and-oil separator second and be connected to the folding valve.
Back blowing process of the present invention is: existing purified gas is through the high-effect cooling device cooling, and water-and-oil separator separates, and reducing valve decompression, gas-holder are purified, the gas compressor compression, water-and-oil separator second is further separated, and pressurization back gas tank is further purified, and just sends into the blowback total pipeline.
Coal gas of the present invention pressurization blowback, should note opening when running 5-10sim pressurized tank pressure is raised to 3.5-4.5Mpa behind the booster fan room can the follow procedure blowback; The blowback time need be adjusted the pipeline blowback at interval, by 5s transfer 10s promptly by the nitrogen blowback timed interval to the pressing gas blowback timed interval.
Advantage of the present invention is: less investment, and instant effect, floor space is little, and technology is simple, and easy handling can utilize coal gas pressurization blowback, and can obtain and utilize N
2The effect same of blowback is by using, for pebble stove coal gas dust-laden＜5mgNm
3, 120 ℃-250 ℃ of temperature; Blast furnace uses 1150 ℃-1200 ℃ of wind-warm syndrome degree, utilization coefficient 〉=40, and ratio of putting coke into furnace＜430kg/t, coal are than 130kg/t, with the both economical technical indicator advanced person of similar blast furnace.
Four, description of drawings
Fig. 1 is an integral device organigram of the present invention.
Five, embodiment:
As shown in Figure 1, blowback equipment of the present invention is by high-effect cooling device 1, water-and-oil separator 2, pump valve 3, reducing valve 4, gas-holder 5, pipeline 6, gas compressor 7, water-and-oil separator second 8, lift check valve 9 and pressurization back gas tank constitute, it is characterized in that water cooler 1 preceding termination gas inlet, thereafter termination water-and-oil separator 2 front ends, water-and-oil separator 2 rear end access valves 3 front ends, ball valve 3 back termination reducing valve 4 front ends, reducing valve 4 back another ball valve 3 front ends of termination, another ball valve 3 back termination gas-holder 5 front ends, pipe nipple road, gas-holder 5 back 6, pipeline 6 the other ends are connected with gas compressor 7 inlet mouths, gas compressor 7 air outlets are connected with water-and-oil separator second 8 front ends, water-and-oil separator second 8 back termination lift check valve 9 front ends, termination pressurization back, lift check valve 9 back gas tank 10 inlet ends, pressurization back gas tank 10 gas exits connect the blowback total pipeline; In addition, the front and back end of reducing valve 4 is in the rear end of the front end of ball valve 3 and another ball valve 3 and be connected to ball valve the third 3; In the rear end of the inlet mouth of gas compressor 7 and water-and-oil separator second 8 and be connected to the folding valve.
Pressurization back blowing process of the present invention cools off through high-effect cooling device 1 for existing purified gas, and water-and-oil separator 2 separates, and reducing valve 4 decompressions, gas-holder 5 are purified, gas compressor 7 compressions, water-and-oil separator second 8 is further separated, and pressurization back gas tank 10 is further purified, and just sends into the blowback total pipeline.
Coal gas of the present invention pressurization blowback, should note opening when running 5-10sim pressurized tank pressure is raised to 3.5-4.5Mpa behind the booster fan room can the follow procedure blowback; The blowback time need be adjusted the pipeline blowback at interval, by 5s transfer 10s promptly by the nitrogen blowback timed interval to the pressing gas blowback timed interval.
Claims (3)
1, a kind of blast furnace gas externally filtering dust collecting blowback adapted coal gas pressurization blowback equipment, by high-effect cooling device (1), water-and-oil separator (2), pump valve (3), reducing valve (4), gas-holder (5), pipeline (6), gas compressor (7), water-and-oil separator second (8), lift check valve (9) and pressurization back gas tank constitute, it is characterized in that the preceding termination gas inlet of water cooler (1), thereafter termination water-and-oil separator (2) front end, water-and-oil separator (2) rear end access valve (3) front end, ball valve (3) back termination reducing valve (4) front end, reducing valve (4) back another ball valve of termination (3) front end, another ball valve (3) back termination gas-holder (5) front end, pipe nipple road (6), gas-holder (5) back, pipeline (6) the other end is connected with gas compressor (7) inlet mouth, gas compressor (7) air outlet is connected with water-and-oil separator second (8) front end, water-and-oil separator second (8) back termination lift check valve (9) front end, termination pressurization back, lift check valve (9) back gas tank (10) inlet end, pressurization back gas tank (10) gas exit connects the blowback total pipeline; In addition, the front and back end of reducing valve (4) is in the rear end of the front end of ball valve (3) and another ball valve (3) and be connected to ball valve third (3); In the rear end of the inlet mouth of gas compressor (7) and water-and-oil separator second (8) and be connected to the folding valve.
2, a kind of blast furnace gas externally filtering dust collecting blowback adapted coal gas pressurization back blowing process, it is characterized in that existing purified gas is through high-effect cooling device (1) cooling, water-and-oil separator (2) separates, reducing valve (4) decompression, gas-holder (5) are purified, gas compressor (7) compression, water-and-oil separator second (8) is further separated, and pressurization back gas tank (10) is further purified, and just sends into the blowback total pipeline.
3, blast furnace gas externally filtering dust collecting blowback adapted coal gas according to claim 2 pressurization back blowing process, it is characterized in that coal gas pressurization blowback should be noted opening when running 5-10sim pressurized tank pressure is raised to 3.5-4.5Mpa behind the booster fan room can the follow procedure blowback; The blowback time need be adjusted the pipeline blowback at interval, by 5s transfer 10s promptly by the nitrogen blowback timed interval to the pressing gas blowback timed interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610012484 CN1818079A (en) | 2006-03-06 | 2006-03-06 | Gas pressurizing and back-flushing apparatus and process for externally filtering dust collecting and distributing of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610012484 CN1818079A (en) | 2006-03-06 | 2006-03-06 | Gas pressurizing and back-flushing apparatus and process for externally filtering dust collecting and distributing of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1818079A true CN1818079A (en) | 2006-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610012484 Pending CN1818079A (en) | 2006-03-06 | 2006-03-06 | Gas pressurizing and back-flushing apparatus and process for externally filtering dust collecting and distributing of blast furnace |
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| CN (1) | CN1818079A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613777B (en) * | 2009-07-17 | 2012-01-04 | 中冶东方工程技术有限公司 | Process for backblowing and deashing through bag-type dust remover by blast furnace dry method |
| CN104481844A (en) * | 2014-11-14 | 2015-04-01 | 柳州市安龙机械设备有限公司 | Front-load cooler assembly |
-
2006
- 2006-03-06 CN CN 200610012484 patent/CN1818079A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613777B (en) * | 2009-07-17 | 2012-01-04 | 中冶东方工程技术有限公司 | Process for backblowing and deashing through bag-type dust remover by blast furnace dry method |
| CN104481844A (en) * | 2014-11-14 | 2015-04-01 | 柳州市安龙机械设备有限公司 | Front-load cooler assembly |
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