CN204550461U - A kind of coke oven heating blast furnace gas air feeder - Google Patents
A kind of coke oven heating blast furnace gas air feeder Download PDFInfo
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- CN204550461U CN204550461U CN201520021367.1U CN201520021367U CN204550461U CN 204550461 U CN204550461 U CN 204550461U CN 201520021367 U CN201520021367 U CN 201520021367U CN 204550461 U CN204550461 U CN 204550461U
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Abstract
The utility model provides a kind of coke oven heating blast furnace gas air feeder, comprise the blast furnace gas inlet pipe be communicated with coke oven, the blast furnace gas pipe be connected with blast furnace gas inlet pipe, be arranged on the valve on blast furnace gas pipe, it is characterized in that the forward and backward bypass pipe being provided with its diameter and being less than blast furnace gas pipe blast furnace gas pipe being positioned at valve, and bypass pipe entrance end and exit end are respectively equipped with gate valve, between two gate valves, establish variable valve.The bypass pipe of blast furnace gas pipe is less than by arranging its diameter on blast furnace gas pipe, eliminate the impact of outer net gas pressure flowing, ensure that bypass pipe gas flow is stablized, meanwhile, by variable valve that bypass pipe is arranged and second, third control valve, gas flow, pressure are regulated and controled in good time, so that when coke-oven gas reduces for amount outward, corresponding minimizing blast furnace gas, for amount, fundamentally solves the waste of Gas Resource, for enterprise is cost-saving.
Description
Technical field
The utility model relates to a kind of air feeder, and particularly a kind of coke oven heating blast furnace gas air feeder, belongs to gas conveying device technical field.
Background technology
In some coking of coal production processes, usually can on a coke oven, use blast furnace gas and coke-oven gas two kinds of coal gas to heat, and guarantee the coal gas equilibrium of supply and demand by the row that blast furnace gas and coke-oven gas combustion chamber use.With regard to existence conditions, when coke oven uses lower than 20 row's blast furnace (BF) gas heating, because blast furnace coal tolerance is less, comparatively speaking, gas line diameter is too large, although blast furnace gas valve closes very little, also can be frequent due to the fluctuation of outer net blast-furnace gas pressure, blast furnace gas flow cannot be stabilized in the required scope of heating, thus it is large to cause coke-oven heating-temperature to fluctuate, coke oven temperature regulates extremely difficult, is therefore unfavorable for coke oven normal heating.The combustion chamber row that blast furnace gas uses is fewer, and the more difficult control of coal gas amount is more unstable.Therefore be necessary to be improved prior art.
Summary of the invention
For solving existing coke oven when using the blast furnace (BF) gas heating lower than 20 rows, because the fluctuation of outer net blast-furnace gas pressure is frequent, and affect the problems such as the stable heating of coke oven, the utility model provides a kind of coke oven heating low discharge blast furnace gas air feeder.
The utility model is completed by following technical proposal: a kind of coke oven heating low discharge blast furnace gas air feeder, comprise the blast furnace gas inlet pipe be communicated with coke oven, the blast furnace gas pipe be connected with blast furnace gas inlet pipe, be arranged on the valve on blast furnace gas pipe, before it is characterized in that blast furnace gas pipe is positioned at valve, after be provided with the bypass pipe that its diameter is less than blast furnace gas pipe, and bypass pipe entrance end and exit end are respectively equipped with gate valve, variable valve is established between two gate valves, when being less than 20 row with convenient blast furnace gas combustion room row, close blast furnace gas tube valve, open bypass pipe gate valve and variable valve, coal gas is made to enter coke oven combustion by bypass pipe, simultaneously because bypass pipe caliber is little, gas flow easily controls, and can blast-furnace gas pressure be stablized, again by bypass pipe variable valve, solve stable problem when using low discharge blast furnace gas well.
Described bypass pipe entrance end is connected on the blast furnace gas pipe before valve, exit end is connected in the blast furnace gas pipe after valve or blast furnace gas inlet pipe, when being less than 20 row with convenient blast furnace gas combustion room row, close blast furnace gas tube valve, change and provide low discharge blast furnace gas by bypass pipe to coke oven.
Described bypass pipe diameter is 1/3 ~ 1/5 times of gas pipe diameter.
The utility model has following advantages and effect: adopt such scheme, can conveniently by before be positioned at valve on blast furnace gas pipe, the rear bypass pipe its diameter being set and being less than blast furnace gas pipe, effectively can eliminate the impact of outer net gas pressure fluctuation, ensure that bypass pipe gas flow is stablized, simultaneously, by two gate valves that bypass pipe is arranged and variable valve therebetween, solve the problem of coal gas amount instability when using blast furnace gas combustion room row less well, so that when coke-oven gas reduces for amount outward, corresponding minimizing blast furnace gas is for amount, fundamentally solve the waste of Gas Resource, for enterprise is cost-saving.The utility model structure is simple, does not need to carry out excessive transformation to gaspipe network, just can get a desired effect.Be a desirable blast furnace gas pipe in fact.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
The coke oven heating low discharge blast furnace gas air feeder that the utility model provides, comprise the blast furnace gas inlet pipe 3 be communicated with coke oven, the blast furnace gas pipe 1 be connected with blast furnace gas inlet pipe 3, be arranged on the valve 2 on blast furnace gas pipe 1, blast furnace gas pipe 1 is positioned at the forward and backward bypass pipe 7 being provided with its diameter and being less than blast furnace gas pipe 1 of valve 2, and bypass pipe 7 entrance end and exit end are respectively equipped with gate valve 4,6, between two gate valves 4,6, establish variable valve 5; Described bypass pipe 7 entrance end is connected on the blast furnace gas pipe 1 before valve 2, and exit end is connected in the blast furnace gas inlet pipe 3 after valve 2, and described bypass pipe 7 diameter is 1/4 times of gas pipe 1 diameter.When blast furnace gas combustion room row is less than 20 row, closes blast furnace gas pipe 1 valve 2, open bypass pipe 7 gate valve 4,6 and variable valve 5, make coal gas enter coke oven combustion by bypass pipe 7, blast furnace gas inlet pipe 3; When using blast furnace gas combustion room row to be greater than 20 row, close bypass pipe valve 4,6 and motor-driven control valve 5, open blast furnace gas pipe 1 valve 2, coal gas enters coke oven combustion by blast furnace gas pipe 1, blast furnace gas inlet pipe 3.
Claims (3)
1. a coke oven heating low discharge blast furnace gas air feeder, comprise the blast furnace gas inlet pipe be communicated with coke oven, the blast furnace gas pipe be connected with blast furnace gas inlet pipe, be arranged on the valve on blast furnace gas pipe, it is characterized in that the forward and backward bypass pipe being provided with its diameter and being less than blast furnace gas pipe blast furnace gas pipe being positioned at valve, and bypass pipe entrance end and exit end are respectively equipped with gate valve, between two gate valves, establish variable valve.
2. coke oven heating low discharge blast furnace gas air feeder according to claim 1, it is characterized in that described bypass pipe entrance end be connected to valve before blast furnace gas pipe on, exit end is connected in the blast furnace gas pipe after valve or blast furnace gas inlet pipe.
3. coke oven heating low discharge blast furnace gas air feeder according to claim 1, is characterized in that described bypass pipe diameter is 1/3 ~ 1/5 times of gas pipe diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520021367.1U CN204550461U (en) | 2015-01-13 | 2015-01-13 | A kind of coke oven heating blast furnace gas air feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520021367.1U CN204550461U (en) | 2015-01-13 | 2015-01-13 | A kind of coke oven heating blast furnace gas air feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204550461U true CN204550461U (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520021367.1U Active CN204550461U (en) | 2015-01-13 | 2015-01-13 | A kind of coke oven heating blast furnace gas air feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204550461U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107641672A (en) * | 2017-09-29 | 2018-01-30 | 四川德胜集团钒钛有限公司 | A kind of blast furnace gas oven pipeline |
| CN114702969A (en) * | 2022-04-25 | 2022-07-05 | 新余钢铁股份有限公司 | Coke oven heating system |
-
2015
- 2015-01-13 CN CN201520021367.1U patent/CN204550461U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107641672A (en) * | 2017-09-29 | 2018-01-30 | 四川德胜集团钒钛有限公司 | A kind of blast furnace gas oven pipeline |
| CN114702969A (en) * | 2022-04-25 | 2022-07-05 | 新余钢铁股份有限公司 | Coke oven heating system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |