CN201443682U - Iron-fining furnace coal gas charging bucket two-way pressure-equalizing system - Google Patents
Iron-fining furnace coal gas charging bucket two-way pressure-equalizing system Download PDFInfo
- Publication number
- CN201443682U CN201443682U CN2009200300937U CN200920030093U CN201443682U CN 201443682 U CN201443682 U CN 201443682U CN 2009200300937 U CN2009200300937 U CN 2009200300937U CN 200920030093 U CN200920030093 U CN 200920030093U CN 201443682 U CN201443682 U CN 201443682U
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- Prior art keywords
- pressure
- equalizing
- valve
- coal gas
- pressing system
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Abstract
The utility model discloses an iron-fining furnace coal gas charging bucket two-way pressure-equalizing system, which is provided with an additional pressure-equalizing system with the same structure based on an existing pressure-equalizing system. A tee joint is arranged on a coal gas pipeline, two blind flange valves are further connected on the tee joint, and the tee joint is further respectively connected with two sets of pressure-equalizing systems via the two blind flange valves. The two-way pressure-equalizing system has the advantages that one set of pressure-equalizing system is adopted as a working system, the other set is employed as a backup system in normal time, when the working system is repaired due to malfunctions, users close the blind flange valve of the pressure equalizing system and simultaneously open the blind flange valve of the backup system to continue supplying coal gas, and accordingly normal work is not affected.
Description
Technical field
The utility model relates to the coal gas batch can that iron-smelting furnace is used.
Background technique
The coal gas batch can that present iron works iron-smelting furnace is used is all installed the equal pressing system of a cover.All pressing system is connected to form by blank-plate valve, pressure equalizing valve and pressure-equalizing and discharging valve.When said system breaks down maintenance, need close gas pipe line and blank-plate valve damping down and handle, influence normal ironmaking work.In addition, the pressure-equalizing and discharging valve that said system is used is the DN300 crank arm type, and valve plate and contact surface of valve seat width be 30mm only, and is equipped with
The silica gel sealing ring of 10mm; Because valve plate acts frequently, seal ring very easily weares and teares, and causes gas leakage, thereby can not balance batch can and the interior pressure of stove, influences material and advances stove smoothly.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, proposes the equal pressing system of a kind of two-way.
Technological scheme is: it comprises the existing equal pressing system of being made up of pressure equalizing valve, pressure-equalizing and discharging valve and blank-plate valve of a cover, it is characterized in that, also comprises the equal pressing system of second cover, and the equal pressing system of second cover is also connected to form by pressure equalizing valve, pressure-equalizing and discharging valve and blank-plate valve; The interconnection mode of the first equal pressing system of cover and the equal pressing system of second cover is: a threeway is set on gas pipe line, inserts two blank-plate valve again in threeway, be connected with the equal pressing system of second cover with first cover respectively by two blank-plate valve again.
In order to improve the life-span of blank-plate valve, above-mentioned pressure-equalizing and discharging valve adopts the rectilinear pressure equalizing valve of DN250.
The utility model good effect is: overlap as work system with one at ordinary times, another set of as standby system, when work system hinders maintenance for some reason, close this system's blank-plate valve, the blank-plate valve of opening standby system simultaneously continues air feed, does not influence proper functioning like this, and the pressure-equalizing and discharging valve adopts rectilinear, not fragile, rate of fault is low.
Description of drawings
Fig. 1 is the schematic representation of the utility model embodiment.
Marginal data: 1,5-pressure equalizing valve, 2,4,8, the 9-blank-plate valve, the 3-threeway, 6,11-pressure-equalizing and discharging valve, the equal pressing system of 7-second cover, 10-has equal pressing system, 12-coal gas system now.
Embodiment
As shown in the figure, the utility model is to increase the equal pressing system of a cover in addition to be called the equal pressing system 7 of second cover on the basis of existing equal pressing system 10, as can be seen from the figure, existing equal pressing system connects to form by pressure equalizing valve 1, pressure-equalizing and discharging valve 11 and blank-plate valve 9, and the equal pressing system 7 of second cover that increases newly is connected to form by pressure equalizing valve 5, pressure-equalizing and discharging valve 6 and blank-plate valve 8; Gas pipe line is provided with threeway 3, inserts two blank-plate valve 2 and 4 in threeway 3 again, is connected with the equal pressing system 7 of second cover with existing equal pressing system 10 respectively with 4 by blank-plate valve 2 again.
In order to improve the life-span of blank-plate valve, above-mentioned pressure-equalizing and discharging valve 6 and 11 all adopts the rectilinear pressure equalizing valve of DN250.
Claims (2)
1. equal pressing system of iron-smelting furnace coal gas batch can two-way, it comprises the equal pressing system of being made up of pressure equalizing valve, pressure-equalizing and discharging valve and blank-plate valve of a cover, it is characterized in that also comprise the equal pressing system of second cover, the equal pressing system of second cover is also connected to form by pressure equalizing valve, pressure-equalizing and discharging valve and blank-plate valve; The interconnection mode of the first equal pressing system of cover and the equal pressing system of second cover is: a threeway is set on gas pipe line, inserts two blank-plate valve again in threeway, be connected with the equal pressing system of second cover with first cover respectively by two blank-plate valve again.
2. the equal pressing system of iron-smelting furnace coal gas batch can two-way as claimed in claim 1 is characterized in that described pressure-equalizing and discharging valve all adopts the rectilinear pressure equalizing valve of DN250.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200300937U CN201443682U (en) | 2009-07-22 | 2009-07-22 | Iron-fining furnace coal gas charging bucket two-way pressure-equalizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200300937U CN201443682U (en) | 2009-07-22 | 2009-07-22 | Iron-fining furnace coal gas charging bucket two-way pressure-equalizing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201443682U true CN201443682U (en) | 2010-04-28 |
Family
ID=42548362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200300937U Expired - Fee Related CN201443682U (en) | 2009-07-22 | 2009-07-22 | Iron-fining furnace coal gas charging bucket two-way pressure-equalizing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201443682U (en) |
-
2009
- 2009-07-22 CN CN2009200300937U patent/CN201443682U/en not_active Expired - Fee Related
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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: 20100428 Termination date: 20140722 |
|
| EXPY | Termination of patent right or utility model |