CN203295523U - Gas supply system for furnace roof of blast furnace - Google Patents
Gas supply system for furnace roof of blast furnace Download PDFInfo
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- CN203295523U CN203295523U CN2013203148571U CN201320314857U CN203295523U CN 203295523 U CN203295523 U CN 203295523U CN 2013203148571 U CN2013203148571 U CN 2013203148571U CN 201320314857 U CN201320314857 U CN 201320314857U CN 203295523 U CN203295523 U CN 203295523U
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Abstract
The utility model discloses a gas supply system for a furnace roof of a blast furnace. The gas supply system comprises a furnace roof nitrogen system used for supplying nitrogen to the furnace roof of the blast furnace, a furnace roof coal gas system which is parallel to the furnace roof nitrogen system and used for supplying the coal gas to the furnace roof of the blast furnace, and a switch device which is used for switching the gas source supplied to the furnace roof of the blast furnace and arranged between the furnace roof coal gas system and the furnace roof nitrogen system. According to the gas supply system, the furnace roof coal gas system is parallel to the conventional furnace roof nitrogen system and the switch device is arranged between the furnace roof nitrogen system and the furnace roof coal gas system, the coal gas or the nitrogen can be supplied to the furnace roof of the blast furnace according to the practical working condition independently or simultaneously, so as to ensure enough gas source for the furnace roof of the blast furnace and normal operation of the equipment, reduce or eliminate nitrogen consumption and improve the blast furnace gas heating value. Moreover, the gas supply system which is formed by modifying the conventional furnace roof gas supply system can be applied.
Description
Technical field
The utility model belongs to metallurgical technology field, is specifically related to a kind of blast furnace roof airing system.
Background technology
In the blast furnace ironmaking production process, the at present general normal operation of adopting nitrogen to keep the part key equipment in the blast furnace roof system mainly comprises: adopt high pressure nitrogen to seal furnace top distributing gear and assist cooling, adopt high pressure nitrogen to the furnace roof batch can all press, when the clack box temperature is higher under furnace roof, employing nitrogen is lowered the temperature etc.The a large amount of nitrogen of above process need consumption, increased pig iron cost, and especially to the iron and steel enterprise of some nitrogen supply (NS) deficiencies, nitrogen lacks or the nitrogen pressure fluctuation also often causes production, equipment failure, greatly affects production stability.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of blast furnace roof airing system, and this blast furnace roof airing system can reduce or cancel the consumption of furnace roof nitrogen, improves blast furnace gas calorific value, effectively cuts operating costs.
For achieving the above object, the utility model provides following technical scheme:
A kind of blast furnace roof airing system, comprise for supply the furnace roof nitrogen system of nitrogen to described blast furnace roof, it is characterized in that: also comprise and be arranged in parallel with described furnace roof nitrogen system and be used for the stock gas system that gives gas to blast furnace roof, and be provided with between described stock gas system and furnace roof nitrogen system for the shifter of switching selection to blast furnace roof air feed source of the gas.
Further, described stock gas system comprises the gas main that is connected with coal gas supplying system, described gas main comprises that the coal gas that is connected with batch can once all presses path and be used for the pressurize pressurization cooling channel of cooling process of coal gas, described pressurization cooling channel is provided with press for pressing gas, be used for the interchanger of cooling coal gas and be used for the gas tank of the coal gas of storage after the pressurization cooling process, is provided with for the connecting pipeline system to furnace roof batch can, lower clack box and distributor air feed between described gas tank and described blast furnace roof.
Further, described furnace roof nitrogen system comprises the nitrogen pot I that is connected with the nitrogen gas transmission pipeline net work, the delivery conduit of described nitrogen pot I comprises that the nitrogen secondary that the nitrogen-sealed cooling channel I that is arranged in parallel is connected with batch can with being positioned at blast furnace roof all presses path I, is connected with distributor with the lower clack box that is positioned at blast furnace roof respectively after the cooling branch road I of nitrogen-sealed that described nitrogen-sealed cooling channel I is divided into two parallel connections;
The delivery conduit of described gas tank comprises that the coal gas sealing cooling channel I that is arranged in parallel all presses path I with the gas secondary that is connected with the furnace roof batch can, is connected with distributor with the lower clack box that is positioned at blast furnace roof respectively after the coal gas that described coal gas sealing cooling channel I is divided into two parallel connections seals cooling branch road I;
Be provided with the displacement bypass between described coal gas sealing cooling channel I and nitrogen-sealed cooling channel I, be respectively equipped with for the switching valve of switching selection to blast furnace roof air feed source of the gas on described displacement bypass, coal gas sealing cooling channel I and nitrogen-sealed cooling channel I.
Further, described gas secondary is all pressed on path I and coal gas sealing cooling channel I and is equipped with for variable valve I, the vacuum breaker I and the trip valve I that control coal gas output, and the variable valve I and the trip valve I that are arranged on described coal gas sealing cooling channel I are separately positioned on two cooling branch road I of described coal gas sealing;
Described nitrogen secondary is all pressed on path I and nitrogen-sealed cooling channel I variable valve II, vacuum breaker II and the trip valve II that is equipped with for controlling nitrogen output, and the variable valve II and the trip valve II that are arranged on described nitrogen-sealed cooling channel I are separately positioned on two cooling branch road I of described nitrogen-sealed.
Further, described furnace roof nitrogen system comprises the nitrogen pot II that is connected with the nitrogen gas transmission pipeline net work, is provided with between described gas tank and nitrogen pot II for the secondary that is connected with batch can and all presses path II and be used for the sealing cooling channel II that is connected with lower clack box, distributor respectively.
Further, described secondary is all pressed path II to comprise respectively and is all pressed branch road II and the secondary Jun Yazong road II that is connected with batch can with the secondary that gas tank is connected with nitrogen pot II; Described sealing cooling channel II comprises the cooling shunt II of the sealing that is connected with gas tank, nitrogen pot II respectively and the cooling branch road II of sealing that is connected with lower clack box, distributor respectively, seals cooling shunt II and seal between cooling branch road II to be provided with the cooling total road II of sealing;
Described secondary Jun Yazong road II is provided with variable valve III and vacuum breaker III, and described secondary all presses branch road II to be provided with trip valve III; The cooling shunt II of described sealing is provided with trip valve IV, and the cooling branch road II of described sealing is provided with variable valve IV and trip valve V, and the cooling branch road II of described sealing goes up or seals cooling total road II and is provided with vacuum breaker IV.
Further, also be provided with the nitrogen air-supply duct that is connected for the nitrogen gas transmission pipeline net work on described gas tank, the delivery conduit of described gas tank comprises that the secondary that the sealing cooling channel III that is arranged in parallel is connected with batch can with being positioned at blast furnace roof all presses path III, is connected with distributor with the lower clack box that is positioned at blast furnace roof respectively after the cooling branch road III of sealing that described sealing cooling channel III is divided into two parallel connections.
Further, be equipped with trip valve VI on described pressurization cooling channel and nitrogen air-supply duct;
Described secondary is all pressed on path III and sealing cooling channel III and is equipped with for variable valve V, the vacuum breaker V and the trip valve VII that control gas output, and the variable valve V and the trip valve VII that are arranged on described sealing cooling channel III are separately positioned on two cooling branch road III of described sealing.
Further, described interchanger is two and is separately positioned on the both sides, front and back of described press.
Further, described coal gas once all presses path to be provided with trip valve VIII; Described gas tank and nitrogen pot are provided with safety valve.
The beneficial effects of the utility model are:
Blast furnace roof airing system of the present utility model, by with existing furnace roof nitrogen system, being set up in parallel the stock gas system, and between furnace roof nitrogen system and stock gas system, shifter is set, can supply separately coal gas or nitrogen to blast furnace roof according to actual condition, also can supply coal gas and nitrogen to blast furnace roof simultaneously, and obtain following effect:
1) gas that enters blast furnace roof becomes coal gas by nitrogen, can improve blast furnace gas calorific value;
2) can cancel or reduce nitrogen consumption, be conducive to cut operating costs, alleviate the situation of Steel Plant's nitrogen anxiety;
3) blast furnace roof airing system of the present utility model is simple in structure, can implement after transforming on the basis of existing furnace roof airing system, and less investment, profitable, rate of return on investment is high.
Description of drawings
In order to make the purpose of this utility model, technical scheme and beneficial effect clearer, the utility model provides following accompanying drawing to describe:
Fig. 1 is the structural representation of the utility model blast furnace roof airing system the first embodiment;
Fig. 2 is the structural representation of the utility model blast furnace roof airing system the second embodiment;
Fig. 3 is the structural representation of the utility model blast furnace roof airing system the 3rd embodiment.
Description of reference numerals:
The 1-batch can; Clack box under 2-; The 3-distributor; 4-coal gas is once all pressed path; The 5-cooling channel that pressurizes; The 6-press; The 7-interchanger; The 8-gas tank; 9-raw gas pipe network; 10-raw gas air-supply duct; The 11-fly-ash separator; 12-purified gas pipe network; 13-purified gas air-supply duct; 14-relief valve group; 15-trip valve VIII; 16-nitrogen gas transmission pipeline net work; 17-nitrogen pot I; 18-nitrogen-sealed cooling channel I; 19-nitrogen secondary is all pressed path I; The cooling branch road I of 20-nitrogen-sealed; 21-coal gas sealing cooling channel I; The 22-gas secondary is all pressed path I; The cooling branch road I of 23-coal gas sealing; 24-variable valve I; 25-vacuum breaker I; 26-trip valve I; 27-variable valve II; 28-vacuum breaker II; 29-trip valve II; 30-replaces bypass; The 31-switching valve;
32-nitrogen pot II; The 35-secondary is all pressed branch road II; 36-secondary Jun Yazong road II; 37-seals cooling shunt II; 38-seals cooling branch road II; 39-seals cooling total road II; 40-variable valve III; 41-vacuum breaker III; 42-trip valve III; 43-trip valve IV; 44-variable valve IV; 45-trip valve V; 46-vacuum breaker IV;
47-nitrogen air-supply duct; 48-sealing cooling channel III; The 49-secondary is all pressed path III; 50-seals cooling branch road III; 51-trip valve VI; 52-variable valve V; 53-vacuum breaker V; 54-trip valve VII; 55-safety valve II; 56-safety valve II; 57-safety valve III.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
The first embodiment
As shown in Figure 1, be the structural representation of the utility model blast furnace roof airing system the first embodiment.The blast furnace roof airing system of the present embodiment, comprise for to blast furnace roof, supplying the furnace roof nitrogen system of nitrogen and be arranged in parallel with the furnace roof nitrogen system and be used for the stock gas system that gives gas to blast furnace roof, and be provided with between stock gas system and furnace roof nitrogen system for the shifter of switching selection to blast furnace roof air feed source of the gas.
As shown in Figure 1, the stock gas system of the present embodiment comprises the gas main that is connected with coal gas supplying system, gas main comprises that the coal gas that is connected with batch can 1 once all presses path 4 and be used for the pressurize pressurization cooling channel 5 of cooling process of coal gas, pressurization cooling channel 5 is provided with press 6 for pressing gas, be used for the interchanger 7 of cooling coal gas and be used for the gas tank 8 of the coal gas of storage after the pressurization cooling process, is provided with between gas tank 8 and blast furnace roof for the connecting pipeline system to furnace roof batch can 1, lower clack box 2 and distributor 3 air feed.
Preferably, interchanger 7 is two and is separately positioned on the both sides, front and back of press 6, can better cooling coal gas, and coal gas once all presses path 4 to be provided with trip valve VIII15, is used for controlling coal gas and once all presses the break-make of path 4.
Further, the furnace roof nitrogen system comprises the nitrogen pot I17 that is connected with nitrogen gas transmission pipeline net work 16, the delivery conduit of nitrogen pot I17 comprises that the nitrogen-sealed cooling channel I18 that is arranged in parallel all presses path I19 with the nitrogen secondary that is connected with furnace roof batch can 1, nitrogen-sealed cooling channel I18 is connected with distributor 3 with the lower clack box 2 that is positioned at blast furnace roof respectively after being divided into the cooling branch road I20 of nitrogen-sealed of two parallel connections, can realize the function of hopper 1, lower clack box 2 and distributor 3 the supply of nitrogen to blast furnace roof.The delivery conduit of gas tank 8 comprises that the coal gas sealing cooling channel I21 that is arranged in parallel all presses path I22 with the gas secondary that is connected with furnace roof batch can 1, coal gas sealing cooling channel I21 be divided into after the cooling branch road I23 of coal gas sealing of two parallel connections respectively with furnace roof under clack box 1 be connected with distributor 2, can realize the function of to furnace top material tank for blast furnace 1, lower clack box 2 and distributor 3, supplying coal gas.
Preferably, gas secondary is all pressed on path I22 and coal gas sealing cooling channel I21 and is equipped with for variable valve I24, the vacuum breaker I25 and the trip valve I26 that control coal gas output, the variable valve I24 and the trip valve I26 that are arranged on coal gas sealing cooling channel I21 are separately positioned on two cooling branch road I23 of coal gas sealing, be used for controlling respectively downward clack box 2 and distributor 3 supply coal gas, two cooling branch road I23 of coal gas sealing of the present embodiment share a vacuum breaker I25.The nitrogen secondary is all pressed on path I19 and nitrogen-sealed cooling channel I18 variable valve II27, vacuum breaker II28 and the trip valve II29 that is equipped with for controlling nitrogen output, the variable valve II27 and the trip valve II29 that are arranged on nitrogen-sealed cooling channel I18 are separately positioned on two cooling branch road I20 of nitrogen-sealed, and the cooling branch road I20 of two nitrogen-sealeds of the present embodiment shares a vacuum breaker II28.Be equipped with safety valve I55 on the gas tank 8 of the present embodiment and nitrogen pot I17.
be provided with displacement bypass 30 between coal gas sealing cooling channel I21 and nitrogen-sealed cooling channel I18, displacement bypass 30, be respectively equipped with on coal gas sealing cooling channel I21 and nitrogen-sealed cooling channel I18 for the switching valve 31 of switching selection to blast furnace roof air feed source of the gas, by at coal gas sealing cooling channel I21 and nitrogen-sealed cooling channel I18, switching valve 31 being set, can select to supply separately coal gas or nitrogen to blast furnace top equipment according to actual condition, or to blast furnace top equipment, supply simultaneously coal gas and nitrogen, by displacement bypass 30 is set, can realize the exchange utilization of gas tank 8 delivery conduits and nitrogen pot I17, improve the reliability of piping system.
The blast furnace roof airing system of the present embodiment, by with existing furnace roof nitrogen system, being set up in parallel the stock gas system, and between furnace roof nitrogen system and stock gas system, shifter is set, can supply separately coal gas or nitrogen to blast furnace roof according to actual condition, also can be simultaneously to blast furnace roof supply coal gas and nitrogen, guaranteeing provides sufficient source of the gas and equipment normally to move to blast furnace roof, and has obtained following effect:
1) gas that enters blast furnace roof becomes coal gas by nitrogen, can improve blast furnace gas calorific value;
2) can cancel or reduce nitrogen consumption, be conducive to cut operating costs, alleviate the situation of Steel Plant's nitrogen anxiety;
3) blast furnace roof airing system of the present utility model is simple in structure, can implement after transforming on the basis of existing furnace roof airing system, and less investment, profitable, rate of return on investment is high.
The second embodiment
As shown in Figure 2, be the structural representation of the utility model blast furnace roof airing system the second embodiment.The blast furnace roof airing system of the present embodiment, comprise for to blast furnace roof, supplying the furnace roof nitrogen system of nitrogen and be arranged in parallel with the furnace roof nitrogen system and be used for the stock gas system that gives gas to blast furnace roof, and be provided with between stock gas system and furnace roof nitrogen system for the shifter of switching selection to blast furnace roof air feed source of the gas.As shown in Figure 2, the stock gas system of the present embodiment comprises the gas main that is connected with coal gas supplying system, gas main comprises that the coal gas that is connected with batch can 1 once all presses path 4 and be used for the pressurize pressurization cooling channel 5 of cooling process of coal gas, pressurization cooling channel 5 is provided with press 6 for pressing gas, be used for the interchanger 7 of cooling coal gas and be used for the gas tank 8 of the coal gas of storage after the pressurization cooling process, is provided with between gas tank 8 and blast furnace roof for the connecting pipeline system to furnace roof batch can 1, lower clack box 2 and distributor 3 air feed.
The furnace roof nitrogen system of the present embodiment comprises the nitrogen pot II32 that is connected with nitrogen gas transmission pipeline net work 16, is provided with between gas tank 8 and nitrogen pot II32 for the secondary that is connected with batch can 1 and all presses path II and be used for the sealing cooling channel II that is connected with lower clack box 2, distributor 3 respectively.The secondary of the present embodiment is all pressed path II to comprise respectively and is all pressed branch road II35 and the secondary Jun Yazong road II36 that is connected with batch can 1 with the secondary that gas tank 8 is connected with nitrogen pot II32.Sealing cooling channel II comprises the cooling shunt II37 of the sealing that is connected with gas tank 8, nitrogen pot II32 respectively and the cooling branch road II38 of sealing that is connected with lower clack box 2, distributor 3 respectively, seals cooling shunt II37 and seal between cooling branch road II38 to be provided with the cooling total road II39 of sealing.The secondary Jun Yazong road II36 of the present embodiment is provided with variable valve III40 and vacuum breaker III41, secondary all presses branch road II35 to be provided with trip valve III42,, by at secondary, all pressing branch road II35 that trip valve III42 is set, can switch and select to batch can 1 supply coal gas or nitrogen.
Seal cooling shunt II37 and be provided with trip valve IV43, seal cooling branch road II38 and be provided with variable valve IV44 and trip valve V45, seal on cooling branch road II38 or seal cooling total road II39 and be provided with vacuum breaker IV46, the vacuum breaker IV46 of the present embodiment is arranged on the cooling total road II39 of sealing, and namely two secondaries all press branch road II35 to share a vacuum breaker IV46.Be equipped with safety valve II56 on the gas tank 8 of the present embodiment and nitrogen pot II32.
Other embodiments of the present embodiment are identical with the first embodiment, are not repeated.
The 3rd embodiment
As shown in Figure 3, be the structural representation of the utility model blast furnace roof airing system the 3rd embodiment.The blast furnace roof airing system of the present embodiment, comprise for to blast furnace roof, supplying the furnace roof nitrogen system of nitrogen and be arranged in parallel with the furnace roof nitrogen system and be used for the stock gas system that gives gas to blast furnace roof, and be provided with between stock gas system and furnace roof nitrogen system for the shifter of switching selection to blast furnace roof air feed source of the gas.As shown in Figure 3, the stock gas system of the present embodiment comprises the gas main that is connected with coal gas supplying system, gas main comprises that the coal gas that is connected with batch can 1 once all presses path 4 and be used for the pressurize pressurization cooling channel 5 of cooling process of coal gas, pressurization cooling channel 5 is provided with press 6 for pressing gas, be used for the interchanger 7 of cooling coal gas and be used for the gas tank 8 of the coal gas of storage after the pressurization cooling process, is provided with between gas tank 8 and blast furnace roof for the connecting pipeline system to furnace roof batch can 1, lower clack box 2 and distributor 3 air feed.
Also be provided with the nitrogen air-supply duct 47 that is connected for nitrogen gas transmission pipeline net work 16 on gas tank 8, the delivery conduit of gas tank 8 comprises that the secondary that the sealing cooling channel III48 that is arranged in parallel is connected with batch can 1 with being positioned at blast furnace roof all presses path III49, and sealing cooling channel III48 is connected with distributor 3 with the lower clack box 2 that is positioned at blast furnace roof respectively after being divided into the cooling branch road III50 of sealing of two parallel connections.
Be equipped with trip valve VI51 on the pressurization cooling channel 5 of the present embodiment and nitrogen air-supply duct 47, be used for the mixed gas that switching is chosen in gas tank 8 storage coal gas or nitrogen or stores nitrogen, coal gas, and then control to the gas of blast furnace roof supply.
Secondary is all pressed on path III49 and sealing cooling channel III48 and is equipped with for variable valve V52, the vacuum breaker V53 and the trip valve VII54 that control gas output, the variable valve V52 and the trip valve VII54 that are arranged on sealing cooling channel III48 are separately positioned on two cooling branch road III50 of sealing, be used for controlling lower clack box 2 and distributor 3 air feed respectively, and two cooling branch road III50 of sealing of the present embodiment share a vacuum breaker V53.The gas tank 8 of the present embodiment is provided with safety valve III57.
Other embodiments of the present embodiment are identical with the first embodiment, are not repeated.
Explanation is finally, above preferred embodiment is only unrestricted in order to the technical solution of the utility model to be described, although by above preferred embodiment, the utility model is described in detail, but those skilled in the art are to be understood that, can make various changes to it in the form and details, and not depart from the utility model claims limited range.
Claims (10)
1. blast furnace roof airing system, comprise for supply the furnace roof nitrogen system of nitrogen to described blast furnace roof, it is characterized in that: also comprise and be arranged in parallel with described furnace roof nitrogen system and be used for the stock gas system that gives gas to blast furnace roof, and be provided with between described stock gas system and furnace roof nitrogen system for the shifter of switching selection to blast furnace roof air feed source of the gas.
2. blast furnace roof airing system according to claim 1, it is characterized in that: described stock gas system comprises the gas main that is connected with coal gas supplying system, described gas main comprises that the coal gas that is connected with batch can once all presses path and be used for the pressurize pressurization cooling channel of cooling process of coal gas, described pressurization cooling channel is provided with the press for pressing gas, for the interchanger of cooling coal gas with for the gas tank of storing the coal gas after the pressurization cooling process, be provided with between described gas tank and described blast furnace roof for to the furnace roof batch can, the connecting pipeline system of lower clack box and distributor air feed.
3. blast furnace roof airing system according to claim 2, it is characterized in that: described furnace roof nitrogen system comprises the nitrogen pot I that is connected with the nitrogen gas transmission pipeline net work, the delivery conduit of described nitrogen pot I comprises that the nitrogen secondary that the nitrogen-sealed cooling channel I that is arranged in parallel is connected with batch can with being positioned at blast furnace roof all presses path I, is connected with distributor with the lower clack box that is positioned at blast furnace roof respectively after the cooling branch road I of nitrogen-sealed that described nitrogen-sealed cooling channel I is divided into two parallel connections;
The delivery conduit of described gas tank comprises that the coal gas sealing cooling channel I that is arranged in parallel all presses path I with the gas secondary that is connected with the furnace roof batch can, is connected with distributor with the lower clack box that is positioned at blast furnace roof respectively after the coal gas that described coal gas sealing cooling channel I is divided into two parallel connections seals cooling branch road I.
4. blast furnace roof airing system according to claim 3, it is characterized in that: described gas secondary is all pressed on path I and coal gas sealing cooling channel I and is equipped with for variable valve I, the vacuum breaker I and the trip valve I that control coal gas output, and the variable valve I and the trip valve I that are arranged on described coal gas sealing cooling channel I are separately positioned on two cooling branch road I of described coal gas sealing;
Described nitrogen secondary is all pressed on path I and nitrogen-sealed cooling channel I variable valve II, vacuum breaker II and the trip valve II that is equipped with for controlling nitrogen output, and the variable valve II and the trip valve II that are arranged on described nitrogen-sealed cooling channel I are separately positioned on two cooling branch road I of described nitrogen-sealed;
Be provided with the displacement bypass between described coal gas sealing cooling channel I and nitrogen-sealed cooling channel I, be respectively equipped with for the switching valve of switching selection to blast furnace roof air feed source of the gas on described displacement bypass, coal gas sealing cooling channel I and nitrogen-sealed cooling channel I.
5. blast furnace roof airing system according to claim 2, it is characterized in that: described furnace roof nitrogen system comprises the nitrogen pot II that is connected with the nitrogen gas transmission pipeline net work, is provided with between described gas tank and nitrogen pot II for the secondary that is connected with batch can and all presses path II and be used for the sealing cooling channel II that is connected with lower clack box, distributor respectively.
6. blast furnace roof airing system according to claim 5, it is characterized in that: described secondary is all pressed path II to comprise respectively and is all pressed branch road II and the secondary Jun Yazong road II that is connected with batch can with the secondary that gas tank is connected with nitrogen pot II; Described sealing cooling channel II comprises the cooling shunt II of the sealing that is connected with gas tank, nitrogen pot II respectively and the cooling branch road II of sealing that is connected with lower clack box, distributor respectively, seals cooling shunt II and seal between cooling branch road II to be provided with the cooling total road II of sealing;
Described secondary Jun Yazong road II is provided with variable valve III and vacuum breaker III, and described secondary all presses branch road II to be provided with trip valve III; The cooling shunt II of described sealing is provided with trip valve IV, and the cooling branch road II of described sealing is provided with variable valve IV and trip valve V, and the cooling branch road II of described sealing goes up or seals cooling total road II and is provided with vacuum breaker IV.
7. blast furnace roof airing system according to claim 2, it is characterized in that: also be provided with the nitrogen air-supply duct that is connected for the nitrogen gas transmission pipeline net work on described gas tank, the delivery conduit of described gas tank comprises that the sealing cooling channel III that is arranged in parallel all presses path III with the secondary that is connected with the furnace roof batch can, is connected with distributor with the lower clack box that is positioned at blast furnace roof respectively after the cooling branch road III of sealing that described sealing cooling channel III is divided into two parallel connections.
8. blast furnace roof airing system according to claim 7, is characterized in that: be equipped with trip valve VI on described pressurization cooling channel and nitrogen air-supply duct;
Described secondary is all pressed on path III and sealing cooling channel III and is equipped with for variable valve V, the vacuum breaker V and the trip valve VII that control gas output, and the variable valve V and the trip valve VII that are arranged on described sealing cooling channel III are separately positioned on two cooling branch road III of described sealing.
9. according to claim 2-6 described blast furnace roof airing systems of any one is characterized in that: described interchanger is two and is separately positioned on the both sides, front and back of described press.
10. according to claim 2-6 described blast furnace roof airing systems of any one, it is characterized in that: described coal gas once all presses path to be provided with trip valve VIII; Described gas tank and nitrogen pot are provided with safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203148571U CN203295523U (en) | 2013-06-03 | 2013-06-03 | Gas supply system for furnace roof of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203148571U CN203295523U (en) | 2013-06-03 | 2013-06-03 | Gas supply system for furnace roof of blast furnace |
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| Publication Number | Publication Date |
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| CN203295523U true CN203295523U (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203148571U Expired - Lifetime CN203295523U (en) | 2013-06-03 | 2013-06-03 | Gas supply system for furnace roof of blast furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255251A (en) * | 2013-06-03 | 2013-08-21 | 中冶赛迪工程技术股份有限公司 | Blast furnace top gas supply system |
| 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 |
-
2013
- 2013-06-03 CN CN2013203148571U patent/CN203295523U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255251A (en) * | 2013-06-03 | 2013-08-21 | 中冶赛迪工程技术股份有限公司 | Blast furnace top gas supply system |
| WO2014194583A1 (en) * | 2013-06-03 | 2014-12-11 | 中冶赛迪工程技术股份有限公司 | Gas supply system for furnace roof of blast furnace |
| 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 |
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Granted publication date: 20131120 |