CN204644385U - Coal-gas recovering equipment in furnace top material tank for blast furnace - Google Patents
Coal-gas recovering equipment in furnace top material tank for blast furnace Download PDFInfo
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- CN204644385U CN204644385U CN201520284150.XU CN201520284150U CN204644385U CN 204644385 U CN204644385 U CN 204644385U CN 201520284150 U CN201520284150 U CN 201520284150U CN 204644385 U CN204644385 U CN 204644385U
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Abstract
The utility model discloses the coal-gas recovering equipment in a kind of furnace top material tank for blast furnace, comprise the diffusion mouth of blast furnace top equipment, the diffusion mouth of blast furnace top equipment is arranged on by the pipeline of normally open valve gate control, and normally open valve arranges the parallel port be made up of with the auxiliary line comprising gas fan rapid switching valve behind the door; Described auxiliary line comprises gas fan, in the front and back of gas fan, arrange a valve respectively, and this parallel port is connected with the coal-gas recovering dust-removal system at rear; Furnace roof batch can is connected with time equalizing valve of on purified gas pipeline, and furnace roof batch can is connected with the secondary equalizing valve on coal gas gas-holder pipeline; Furnace roof batch can is provided with the material loading valve of charging and the baiting valve to the blanking of blast furnace burner hearth.The utility model is rational in infrastructure, environmental protection, easy to use, safe.
Description
Technical field
The utility model relates to the coal-gas recovering equipment in a kind of furnace top material tank for blast furnace.
Background technology
Furnace charge in furnace top material tank for blast furnace enters after in blast furnace chamber, and be filled with dust-laden coal gas in batch can, must be disposed within very short time, the method for prior art is directly discharged in air, pollutes large.
Summary of the invention
The purpose of this utility model is to provide a kind of rational in infrastructure, the coal-gas recovering equipment in environmental protection, convenience, safe furnace top material tank for blast furnace.
Technical solution of the present utility model is:
Coal-gas recovering equipment in a kind of furnace top material tank for blast furnace, it is characterized in that: the diffusion mouth comprising blast furnace top equipment, the diffusion mouth of blast furnace top equipment is arranged on by the pipeline of normally open valve gate control, and normally open valve arranges the parallel port be made up of with the auxiliary line comprising gas fan rapid switching valve behind the door; Described auxiliary line comprises gas fan, in the front and back of gas fan, arrange a valve respectively, and this parallel port is connected with the coal-gas recovering dust-removal system at rear; Furnace roof batch can is connected with time equalizing valve of on purified gas pipeline, and furnace roof batch can is connected with the secondary equalizing valve on coal gas gas-holder pipeline; Furnace roof batch can is provided with the material loading valve of charging and the baiting valve to the blanking of blast furnace burner hearth.
Coal gas gas-holder pipeline arranges gas compressor; Furnace roof batch can is provided with the material loading valve of charging and the baiting valve to the blanking of blast furnace burner hearth.
The utility model is rational in infrastructure, environmental protection, easy to use, safe.Secondary all pressure high pressure gas substitutes the technique (coal gas reservoir pressure 0.8MPa) of high pressure nitrogen.Thus ensure that the purity of gas recovery, namely ensure the calorific value of coal gas, do not affect subsequent technique demand.In order to meet blast furnace smelting process requirement, so add the auxiliary line of valve and gas fan composition, fast the residual gas in batch can be transported to furnace roof emission coal gas and reclaim dust-removal system, ensure in short period of time that the pressure in furnace roof batch can is standard atmospheric pressure, allows furnace charge enter batch can smoothly by material loading valve.Also coal-gas recovering, the dust removal problem of emergency diffusion mouth is solved in the lump.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
The coal-gas recovering equipment of a kind of furnace top material tank for blast furnace 14 li, comprise the diffusion mouth 7 of blast furnace top equipment 5, the diffusion mouth of blast furnace top equipment is arranged on the pipeline that controlled by normally open valve door 6, arranges the parallel port be made up of with the auxiliary line comprising gas fan 9 rapid switching valve 11 after normally open valve door 6; Described auxiliary line comprises gas fan 9, in the front and back of gas fan, arrange a valve 8,10 respectively, and this parallel port is connected with the coal-gas recovering dust-removal system 12 at rear; Furnace roof batch can 14 is connected with an equalizing valve 3 on purified gas (from dry-method bag-type house outlet) pipeline, and furnace roof batch can is connected with the secondary equalizing valve 4 on coal gas gas-holder 2 pipeline.Coal gas gas-holder pipeline arranges gas compressor 1.Furnace roof batch can 14 is provided with the material loading valve 15 of charging and the baiting valve 16 to the blanking of blast furnace burner hearth.
Coal-gas recovering method:
(1) be arranged on by the diffusion mouth of blast furnace top equipment by the pipeline of normally open valve gate control, normally open valve arranges the parallel port be made up of with the auxiliary line comprising gas fan rapid switching valve behind the door; Described auxiliary line comprises gas fan, in the front and back of gas fan, arrange a valve respectively, and this parallel port is connected with the coal-gas recovering dust-removal system at rear; Furnace roof batch can is connected with time equalizing valve of on purified gas pipeline, and furnace roof batch can is connected with the secondary equalizing valve on coal gas gas-holder pipeline;
(2) open the material loading valve of furnace roof batch can, after furnace charge delivers to furnace roof batch can specified amount by handling equipment, close material loading valve; Open an equalizing valve, be pressurized to furnace chamber pressure by furnace roof batch can, as pressure is inadequate, then opens secondary equalizing valve again, be pressurized to prescribed value to furnace roof batch can, then open baiting valve, allow furnace charge enter furnace chamber;
(3) furnace charge in furnace roof batch can enters after in blast furnace chamber through baiting valve, is filled with dust-laden coal gas, is opened by rapid switching valve in furnace roof batch can, enters furnace roof emission coal gas and reclaims dust-removal system, carry out dust removal process after the several seconds; Then gas fan is started, synchronously open the valve be arranged on described auxiliary line before and after gas fan, and close rapid switching valve, after remaining for batch can gas pressure is extracted into normal atmosphere rapidly, close the valve before gas fan on auxiliary line, gas fan 9 quits work, then closes the valve on auxiliary line after gas fan;
(4) open material loading valve, repeat above step poly-, namely blast furnace enters the circulation of smelting.
Claims (2)
1. the coal-gas recovering equipment in a furnace top material tank for blast furnace, it is characterized in that: the diffusion mouth comprising blast furnace top equipment, the diffusion mouth of blast furnace top equipment is arranged on by the pipeline of normally open valve gate control, and normally open valve arranges the parallel port be made up of with the auxiliary line comprising gas fan rapid switching valve behind the door; Described auxiliary line comprises gas fan, in the front and back of gas fan, arrange a valve respectively, and this parallel port is connected with the coal-gas recovering dust-removal system at rear; Furnace roof batch can is connected with time equalizing valve of on purified gas pipeline, and furnace roof batch can is connected with the secondary equalizing valve on coal gas gas-holder pipeline; Furnace roof batch can is provided with the material loading valve of charging and the baiting valve to the blanking of blast furnace burner hearth.
2. the coal-gas recovering equipment in furnace top material tank for blast furnace according to claim 1, is characterized in that: coal gas gas-holder pipeline arranges gas compressor; Furnace roof batch can is provided with the material loading valve of charging and the baiting valve to the blanking of blast furnace burner hearth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520284150.XU CN204644385U (en) | 2015-05-06 | 2015-05-06 | Coal-gas recovering equipment in furnace top material tank for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520284150.XU CN204644385U (en) | 2015-05-06 | 2015-05-06 | Coal-gas recovering equipment in furnace top material tank for blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204644385U true CN204644385U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520284150.XU Active CN204644385U (en) | 2015-05-06 | 2015-05-06 | Coal-gas recovering equipment in furnace top material tank for blast furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104789721A (en) * | 2015-05-06 | 2015-07-22 | 江苏鑫沅阀业有限公司 | Method for recycling coal gas in material tank on top of blast furnace and special device |
| CN111809010A (en) * | 2020-06-19 | 2020-10-23 | 中钢设备有限公司 | Blast furnace top gas pressure-equalizing bleeding system and control method thereof |
-
2015
- 2015-05-06 CN CN201520284150.XU patent/CN204644385U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104789721A (en) * | 2015-05-06 | 2015-07-22 | 江苏鑫沅阀业有限公司 | Method for recycling coal gas in material tank on top of blast furnace and special device |
| CN111809010A (en) * | 2020-06-19 | 2020-10-23 | 中钢设备有限公司 | Blast furnace top gas pressure-equalizing bleeding system and control method thereof |
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