CN1208079A - Blast furnace and hot-blast stove water-cooling system with valves - Google Patents
Blast furnace and hot-blast stove water-cooling system with valves Download PDFInfo
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- CN1208079A CN1208079A CN 97108184 CN97108184A CN1208079A CN 1208079 A CN1208079 A CN 1208079A CN 97108184 CN97108184 CN 97108184 CN 97108184 A CN97108184 A CN 97108184A CN 1208079 A CN1208079 A CN 1208079A
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Abstract
In the water cooling system, the same cooling parts of the valve in blast furnaces are connected serially to main water inlet pipe so that the total cooling water amount equals the sum of the cooling water amounts of the valves in blast furnaces and is 50% lower than that for separate water supply. If necessary, the valves may be also water-supplied separately. The system may realize change-over between forward water flow and backward water flow in the valves.
Description
The present invention relates to the iron-smelting blast furnace auxiliary facility, particularly the cooling system of hotblast stove valve.
Hotblast stove is the topmost auxiliary facility of iron-smelting blast furnace.For guaranteeing continuously that to blast furnace feed hot blast adopt at least two hotblast stoves to use in groups usually, each hotblast stove alternately burns stove and air-supply.For example adopt three hotblast stoves two to burn one and send technology.The valve of hotblast stove (hot blast valve, chimney valve and combustion valve etc. are arranged) often is in work under the high temperature, water-cooling system need be set cool off.Put down in writing the prior art of cooling system in the document " ironmaking design aids " (metallurgical industry press, 1979).Its principle is: water coolant is introduced by water inlet manifold, by arm each hotblast stove valve is separated the cooling of supplying water, and drains then.Its shortcoming is: for guaranteeing that the hotblast stove valve is not burnt out, required service discharge when the flooding quantity of each hotblast stove valve should be its maximum heating load that bears, total inflow then for this reason service discharge multiply by the platform number of hotblast stove valve.Alternately burn stove and air feeding technique owing to adopt, the thermal load difference of each hotblast stove its valve when burning stove with air-supply is very big.Above-mentioned service discharge is suitable to the hotblast stove valve that is in the higher temperatures state, and the hotblast stove valve that is in the lower temperature state has just been wasted very much.In addition, water-cooling system need change flow direction often in maintenance and promptly recoil and reach the purpose of filth-clearing, and available technology adopting temporarily with the mode of each hotblast stove valve entery and delivery port water pipe reversal connection, is operated cumbersome when need recoil.
The object of the present invention is to provide a kind of water-saving water-cooling system, its total inflow is adjustable as and is in high temperature respectively and the required actual water supply sum of cryogenic each hotblast stove valve gets final product, also can carry out separately in case of necessity and supply water, and can realize the switching between the current forward flow and recoil in the pipeline easily each hotblast stove valve.
The object of the present invention is achieved like this: the water-cooling system of using the blast funnace hot blast stove valve in groups, contain at least two and need refrigerative hotblast stove valve, cooling water pipeline and by-pass valve control thereof, after the identical cooling of each hotblast stove valve position connected successively with cooling water pipeline, its head and the tail were connected with water shoot respectively with water inlet manifold again.By-pass valve control contains than hotblast stove valve quantity and lacks 1 seperating vale, is installed in successively between the two hotblast stove valves, handles seperating vale, can carry out relay pumping to each hotblast stove valve or separate switching between the water supply.Two six-way valves that seperating vale is made up of three two-way valves, before wherein first two-way valve connects, back two hotblast stove valves, second two-way valve connects previous hotblast stove valve and water shoot, the 3rd two-way valve connects water inlet manifold and next hotblast stove valve, during relay pumping, first two-way valve is opened, second, the 3rd two-way valve cuts out, seperating vale is in the series connection station, and cooling-water flowing through route is: water inlet manifold--first hotblast stove valve--first seperating vale--second hotblast stove valve--second seperating vale------last hotblast stove valve---water shoot; Separate when supplying water, first two-way valve cuts out, second, the 3rd two-way valve opened, seperating vale is in separation station, first hotblast stove valve cooling-water flowing through route is: water inlet manifold--first hotblast stove valve--first seperating vale---water shoot, last hotblast stove valve cooling-water flowing through route is: water inlet manifold, and--last seperating vale--last hotblast stove valve---water shoot, all the other each hotblast stove valve cooling-water flowings through route are: water inlet manifold--n-1 platform seperating vale--n seat hotblast stove valve--n platform seperating vale---water shoot.
Purpose of the present invention can also realize like this: also contain in the described by-pass valve control and the identical recoil valve of hotblast stove valve quantity, last recoil valve is directly parallel in the going into of hotblast stove valve, the outlet.All the other each be connected in parallel in the outlet of the inlet of each hotblast stove valve and the seperating vale behind this hotblast stove valve, handle recoil valve, switching between forward water supply or the recoil water supply can carried out each hotblast stove valve, the two-position five-way valve that described recoil valve is made up of two T-valve, in first recoil valve, first T-valve connects water inlet manifold, first hotblast stove valve and water shoot, second T-valve connects water inlet manifold, first seperating vale and water shoot, in the end in recoil valve, first T-valve connects previous seperating vale, last hotblast stove valve and water shoot, second T-valve connects water inlet manifold, last hotblast stove valve and water shoot, in all the other each recoil valves, first T-valve connects n-1 platform seperating vale, n seat hotblast stove valve and water shoot, second T-valve connects water inlet manifold, n platform seperating vale and water shoot, during the forward relay pumping, seperating vale is in the series connection station, first T-valve is connected water inlet manifold (for first recoil valve) or last seperating vale (for all the other each recoil valves) and hotblast stove valve in the recoil valve, disconnect with water shoot, second T-valve connected hotblast stove valve (for last recoil valve) or seperating vale (for all the other each recoil valves) and water shoot, disconnect with water inlet manifold, be that recoil valve is in the forward station, cooling-water flowing through route is: water inlet manifold--first recoil valve--first hotblast stove valve--first seperating vale--second recoil valve--second hotblast stove valve--second seperating vale------last recoil valve--last hotblast stove valve--last recoil valve----water shoot; Forward separates when supplying water, seperating vale is in separation station, recoil valve is in the forward station, first hotblast stove valve cooling route is: water inlet manifold--first recoil valve--first hotblast stove valve--first seperating vale--first recoil valve---water shoot, last hotblast stove valve cooling route is: water inlet manifold--last recoil valve--and last hotblast stove valve--last recoil valve---water shoot, all the other each hotblast stove valve cooling routes are: water inlet manifold--last seperating vale--last recoil valve--last hotblast stove valve--last recoil valve---water shoot; When recoil is supplied water, seperating vale is in separation station, first T-valve is connected hotblast stove valve and water shoot in the recoil valve, disconnect with water inlet manifold (for first recoil valve) or seperating vale (for all the other each recoil valves), second T-valve connected water inlet manifold and hotblast stove valve (for last recoil valve) or seperating vale (for all the other each recoil valves), disconnect with water shoot, be that recoil valve is in the recoil station, the current route of last hotblast stove valve of flowing through is:------last hotblast stove valve--last recoil valve---water shoot, all the other each hotblast stove valve current routes are last recoil valve water inlet manifold: water inlet manifold--n platform recoil valve----n platform seperating vale--n seat hotblast stove valve--n platform recoil valve---water shoot.
Because the identical cooling of each hotblast stove valve position is connected in series on the water inlet manifold successively, so they will reach thermal equilibrium on the same temperature in the Inlet and outlet water temperature range of setting, no matter and it is in higher temperatures state or lower temperature state.Total inflow calculates by the thermal value sum that its heat of taking away equals each hotblast stove valve, and score total inflow when supplying water equals the platform number that maximum service discharge in each hotblast stove multiply by the hotblast stove valve and saved water greatly.Sending technology with three hotblast stoves, two burnings one is example, and after the mode of being connected in series was all adopted in its hot blast valve, chimney valve, each identical cooling position of combustion valve, the separation way of supplying water of comparable prior art economized on water nearly 50%.Owing to adopted seperating vale, can when needed the relay pumping state have been switched to and separate the water supply state.Adopt recoil valve then can be when maintenance easily to the water supply that recoils of hotblast stove valve.
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is the embodiment of the invention one synoptic diagram;
Fig. 2 is the embodiment of the invention two synoptic diagram;
Fig. 3 is that two six logical seperating vales are implemented illustration;
Fig. 4 is an A-A sectional view among Fig. 3;
Fig. 5 is another station figure of Fig. 4.
Fig. 6 implements illustration for the two-position five-way recoil valve;
Fig. 7 is a B-B sectional view among Fig. 5.
Fig. 8 is another station figure of Fig. 7.
Embodiment one as shown in Figure 1, three hotblast stoves use in groups, the identical cooling position 11,12,13 of its three hot blast valves (also can be chimney valve or combustion valve) is with after two seperating vales, 21,22 usefulness cooling water pipelines are connected successively, and its head and the tail are connected with water shoot 8 with water inlet manifold 1 again.Two six-way valves that seperating vale all is made up of three two-way valves 31,32,33, wherein two-way valve 31 connects forward and backward two hot blast valves, and two-way valve 32 connects previous hot blast valve and water shoot 8, and two-way valve 33 connects water inlet manifold and next hot blast valve.During relay pumping, two seperating vales 21,22 are in the right working position station of promptly connecting, two-way valve 31 is opened, and two-way valve 32,33 cuts out, and cooling-water flowing through route is: water inlet manifold 1---hot blast valve 11---seperating vale 21---hot blast valve 12---seperating vale 22---hot blast valve 13---water shoot 8; Separate when supplying water, it is separation station that two seperating vales 21,22 are in left station, and two-way valve 31 cuts out, and two-way valve 32,33 is opened, and cooling-water flowing through route is: water inlet manifold 1---hot blast valve 11---seperating vale 21---water shoot 8; Water inlet manifold 1---seperating vale 21---hot blast valve 12---seperating vale 22---water shoot 8; Water inlet manifold 1---seperating vale 22---hot blast valve 13---water shoot 8.
Embodiment two as shown in Figure 2, on the basis of Fig. 1 again with recoil valve 41,42 are connected in hot blast valve 11 respectively in parallel, 12 inlet and seperating vale 21, in 22 the outlet, 43 of recoil valves are connected in going into of hotblast stove valve 13 in parallel, in the outlet, recoil valve all is by two T- valve 51,52 two-position five-way valves of forming, in recoil valve 41, T-valve 51 connects water inlet manifold 1, hot blast valve 11 and water shoot 8, T-valve 52 connects water inlet manifold 1, seperating vale 21 and water shoot 8, in recoil valve 42, T-valve 51 connects seperating vale 21, hot blast valve 12 and water shoot 8, T-valve 52 connects water inlet manifold 1, seperating vale 22 and water shoot 8, in recoil valve 43, T-valve 51 connects seperating vale 22, hot blast valve 13 and water shoot 8, T-valve 52 connects water inlet manifold 1, hot blast valve 13 and water shoot 8.Each recoil valve all has left and right two stations, and the switching mode of its T-valve as shown in Figure 2.During the forward relay pumping, seperating vale and recoil valve all are in right working position, and cooling-water flowing through route is: water inlet manifold 1---recoil valve 41---hot blast valve 11---seperating vale 21---recoil valve 42----hot blast valve 12---seperating vale 22---recoil valve 43---hot blast valve 13---recoil valve 43----water shoot 8; Forward separates when supplying water, seperating vale is in left station, recoil valve is in right working position, cooling-water flowing through route is: water inlet manifold 1---recoil valve 41---hot blast valve 11---seperating vale 21---recoil valve 41---water shoot 8, water inlet manifold 1---seperating vale 21---recoil valve 42---hot blast valve 12---seperating vale 22---recoil valve 42---water shoot 8, water inlet manifold 1---seperating vale 22---recoil valve 43---hot blast valve 13---recoil valve 43---water shoot 8; When recoil is supplied water, seperating vale and recoil valve all are in left station, the recoil route is: water inlet manifold 1---recoil valve 41----seperating vale 21---hot blast valve 11---recoil valve 41---water shoot 8, water inlet manifold 1---recoil valve 42---seperating vale 22---hot blast valve 12---recoil valve 42---water shoot 8, water inlet manifold 1---recoil valve 43---hot blast valve 13---recoil valve 43---water shoot 8.
Above-mentioned two six logical seperating vales can be as Fig. 3, Fig. 4,3 two logical Combined ball valves shown in Figure 5, being fixed with gear 61,62,63 on the valve rod of three ball valves 31,32,33 also is meshing with each other successively, handle this gear mechanism and can make 31,32,33 interlocks of three ball valves, when ball valve 31 was opened, ball valve 32,33 was just in time closed (Fig. 4); When ball valve 31 was closed, ball valve 32,33 was just in time opened (Fig. 5).
Above-mentioned two-position five-way recoil valve can be as Fig. 6, Fig. 7, two threeway Combined ball valves shown in Figure 8, be fixed with gear 71,72 on the valve rod of two ball valves 51,52 and be meshing with each other, handle this gear mechanism and can make 51,52 interlocks of two ball valves, when ball valve 52 was in the water shoot on position, ball valve 51 was in and pipeline on position (Fig. 7); When ball valve 51 was in the water shoot on position, ball valve 52 was in and pipeline on position (Fig. 8).
Claims (4)
1, a kind of water-cooling system of using the blast funnace hot blast stove valve in groups, contain at least two and need refrigerative hotblast stove valve, cooling water pipeline and by-pass valve control thereof, after connecting successively with cooling water pipeline in the identical cooling position that it is characterized in that each hotblast stove valve, its head and the tail are connected with water shoot respectively with water inlet manifold again, described by-pass valve control contains than hotblast stove valve quantity and lacks 1 seperating vale, be installed in successively between the two hotblast stove valves, handle seperating vale, can carry out relay pumping to each hotblast stove valve or separate switching between the water supply, two six-way valves that described seperating vale is made up of three two-way valves, before wherein first two-way valve connects, back two hotblast stove valves, second two-way valve connects the hotblast stove valve and the water shoot of front, the 3rd two-way valve connects water inlet manifold and next hotblast stove valve, during relay pumping, first two-way valve is opened, and second, the 3rd two-way valve cuts out, and seperating vale is in the series connection station; Separate when supplying water, first two-way valve cuts out, and second, third two-way valve is opened, and seperating vale is in separation station.
2, use the water-cooling system of blast funnace hot blast stove valve according to claim 1 in groups, it is characterized in that described by-pass valve control also contains and the identical recoil valve of hotblast stove valve quantity, last recoil valve then is directly parallel in going into of hotblast stove valve, in the outlet, all the other each recoil valves are connected in parallel in the outlet of the inlet of each hotblast stove valve and the seperating vale behind this hotblast stove valve, handle recoil valve, switching between forward water supply or the recoil water supply can carried out the identical cooling position of each hotblast stove valve, the two-position five-way valve that described recoil valve is made up of two T-valve, in first recoil valve, first T-valve connects water inlet manifold, first hotblast stove valve and water shoot, second T-valve connects water inlet manifold, first seperating vale and water shoot, in the end in recoil valve, first T-valve connects previous seperating vale, last hotblast stove valve and water shoot, second T-valve connects water inlet manifold, last hotblast stove valve and water shoot, in all the other each recoil valves, first T-valve connects n-1 platform seperating vale, n seat hotblast stove valve and water shoot, second T-valve connects water inlet manifold, n platform seperating vale and water shoot, during the forward relay pumping, seperating vale is in the series connection station, first T-valve is connected water inlet manifold (for first recoil valve) or last seperating vale (for all the other each recoil valves) and hotblast stove valve in the recoil valve, disconnect with water shoot, second T-valve connected hotblast stove valve (for last recoil valve) or seperating vale (for all the other each recoil valves) and water shoot, disconnect with water inlet manifold, promptly recoil valve is in the forward station; Forward separates when supplying water, and seperating vale is in separation station, and recoil valve is in the forward station; When recoil is supplied water, seperating vale is in separation station, first T-valve is connected hotblast stove valve and water shoot in the recoil valve, disconnect with water inlet manifold (for first recoil valve) or seperating vale (for all the other each recoil valves), second T-valve connected water inlet manifold and hotblast stove valve (for last recoil valve) or seperating vale (for all the other each recoil valves), disconnect with water shoot, promptly recoil valve is in the recoil station.
3, the water-cooling system of using the blast funnace hot blast stove valve in groups as claimed in claim 2, it is characterized in that described two six logical seperating vales are 3 two logical Combined ball valves, being fixed with gear on the valve rod of three ball valves also is meshing with each other successively, handle this gear mechanism and can make three ball valve interlocks, when first ball valve was opened, second, third ball valve was just in time closed; When first ball valve was closed, second, third ball valve was just in time opened.
4, as using the water-cooling system of the hotblast stove valve of blast furnace as described in the claim 2 in groups, it is characterized in that described two-position five-way recoil valve is two threeway Combined ball valves, be fixed with gear on the valve rod of two ball valves and be meshing with each other, handle this gear mechanism and can make two ball valve interlocks, when second ball valve was in the water shoot on position, first ball valve was in the pipeline on position and disconnects with water shoot; When first ball valve was in the water shoot on position, second ball valve was in the pipeline on position and disconnects with water shoot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97108184 CN1208079A (en) | 1997-08-08 | 1997-08-08 | Blast furnace and hot-blast stove water-cooling system with valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97108184 CN1208079A (en) | 1997-08-08 | 1997-08-08 | Blast furnace and hot-blast stove water-cooling system with valves |
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| Publication Number | Publication Date |
|---|---|
| CN1208079A true CN1208079A (en) | 1999-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97108184 Pending CN1208079A (en) | 1997-08-08 | 1997-08-08 | Blast furnace and hot-blast stove water-cooling system with valves |
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| CN (1) | CN1208079A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107846115A (en) * | 2017-11-20 | 2018-03-27 | 山西太钢不锈钢股份有限公司 | Finishing mill frame main motor cooling means |
| CN108193009A (en) * | 2017-12-31 | 2018-06-22 | 安徽马钢工程技术集团有限公司 | Hot-blast stove cools down water system and control method |
| CN113981162A (en) * | 2021-11-09 | 2022-01-28 | 马鞍山钢铁股份有限公司 | Leakage detection device for hot blast valve of closed soft water system |
-
1997
- 1997-08-08 CN CN 97108184 patent/CN1208079A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107846115A (en) * | 2017-11-20 | 2018-03-27 | 山西太钢不锈钢股份有限公司 | Finishing mill frame main motor cooling means |
| CN108193009A (en) * | 2017-12-31 | 2018-06-22 | 安徽马钢工程技术集团有限公司 | Hot-blast stove cools down water system and control method |
| CN108193009B (en) * | 2017-12-31 | 2019-07-30 | 安徽马钢设备检修有限公司 | The cooling water system of hot-blast stove and control method |
| CN113981162A (en) * | 2021-11-09 | 2022-01-28 | 马鞍山钢铁股份有限公司 | Leakage detection device for hot blast valve of closed soft water system |
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