CN101705320B - Pore channel cooling method of damaged cooling wall of blast furnace and device thereof - Google Patents
Pore channel cooling method of damaged cooling wall of blast furnace and device thereof Download PDFInfo
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- CN101705320B CN101705320B CN2009102130140A CN200910213014A CN101705320B CN 101705320 B CN101705320 B CN 101705320B CN 2009102130140 A CN2009102130140 A CN 2009102130140A CN 200910213014 A CN200910213014 A CN 200910213014A CN 101705320 B CN101705320 B CN 101705320B
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Abstract
The invention belongs to the reformation field of damaged cooling walls of blast furnaces, relating to a pore channel cooling method of a damaged cooling wall of a blast furnace and a device thereof. The damaged cooling wall is independently separated, a metal corrugated flexible pipe are respectively inserted into a water inlet pipe and a water outlet pipe of the cooling wall, the front end of each metal corrugated flexible pipe is blocked by a core plug, metal corrugated flexible pipes with smaller pipe diameters are then inserted in the metal corrugated flexible pipes, the front ends of the flexible pipes are blocked by core plugs, a plurality of pores are arranged on the core plugs, slurry with high heat conduction factor is filled between the cooling wall and the large metal corrugated flexible pipes, cooling water passes through a cavity formed between the large and small metal corrugated flexible pipes, passes through the pore channels of the small metal corrugated flexible pipes and then flows out of the small metal corrugated flexible pipes, and then the cooling effect is achieved. The invention can improve the phenomena that one part of the cooling pore channels of the cooling wall is burnt out or the channels are small, solve the problem of water leakage, ensure cooling intensity, prolong the service life of the damaged cooling wall and solve a thorny problem restricting the production of the blast furnace.
Description
Technical field
The invention belongs to damaged cooling wall of blast furnace and transform field, a kind of specifically pore channel cooling method of damaged cooling wall of blast furnace and device thereof.
Background technology
Blast furnace cooling wall breakage leaks, and is the formidable enemy that blast furnace is produced, and is restricting the production of blast furnace and the lifting of technico-economical comparison, even is influencing the furnace life of blast furnace.At present, the cooling treatment method that blast furnace cooling wall breakage is commonly used later on probably has following several: separate the damaged cooling wall pipeline separately from system (1), adopts separately and supply water, and is convenient to control water, reduces the stove water yield of bleeding; (2) poling cooling penetrates metallic hose in the damaged cooling wall duct, fill a kind of slurry of high thermal conductivity coefficient outside metallic hose and between the inwall of cooling stave duct, the external water supply cooling of metallic hose; (3) ventilation body cooling separates logical steam in back or rare gas element cooling separately with the cooling stave of breakage; (4) two water inlet coolings after the independent separation of the cooling stave pipeline of breakage, are given all water flowing coolings of water inlet pipe and rising pipe; (5) outer water spray cooling, the cooling of outside the furnace shell of damaged cooling wall correspondence, spraying water.
More than four kinds of methods all have separately a defective, (1) kind method:, more suitable at the damaged less situation of cooling stave wall body, when the wall body breakage was big, the water yield of the blast furnace that bleeds was big, and the wall body duct is stopped up, water coolant can not flow or flow velocity very low, cooling performance is poor; (2) kind method: more unobstructed at the cooling hole channel ratio, more suitable, when foreign matter stopped up the duct, poling just can't carry out; (3) kind method: the thermal conductivity of gas is very low, cooling intensity low, and (4) kind method: the water yield of the blast furnace that bleeds is big, and measures wayward; (5) kind method: cooling intensity is low, and water coolant can not reclaim, and environment is poor.Above the whole bag of tricks, the part that all can not well solve cooling stave cooling duct is burnt out stifled or the very little situation of passage.
Summary of the invention
Technical problem to be solved by this invention is: at the shortcoming of above prior art existence, a kind of pore channel cooling method of damaged cooling wall of blast furnace and device thereof are proposed, the part that can well solve cooling stave cooling duct is burnt out stifled or the very little situation of passage, solved the problem of leaking, guarantee cooling intensity, prolong the work-ing life of damaged cooling wall, solve the great difficult problem that the restriction blast furnace is produced.
The technical scheme that the present invention solves above technical problem is:
Pore channel cooling method of damaged cooling wall of blast furnace, carry out according to the following steps:
(1) at cooling duct blocks or near the cooling stave that blocks, damaged cooling wall is separated separately;
(2) in the water inlet pipe of cooling stave and rising pipe, respectively insert a metal bellow, the front end of metal bellow with plug stifled on;
(3) insert a metal bellow that caliber is littler again in metal bellow, the front end of flexible pipe blocks up with plug, opens several little ducts on plug;
(4) between cooling stave and big metal bellow, irritate the slurry of high thermal conductivity coefficient;
(5) at the back termination water-supply pipe of big metal bellow, with the cavity of water coolant by forming between the large and small metal bellow, little duct on little metal bellow plug enters little metal bellow again, is flowed out by little metal bellow, reaches the refrigerative effect.
The device of pore channel cooling method of damaged cooling wall of blast furnace, comprise cooling stave water inlet pipe and rising pipe, in the water inlet pipe of cooling stave and rising pipe, respectively insert a metal bellow, the front end of metal bellow blocks up with plug, in metal bellow, insert the metal bellow that caliber is littler, the front end of tubule footpath metal bellow blocks up with plug, on the metal bellow plug of tubule footpath, open several apertures, between cooling stave and big metal bellow, irritate the slurry of high thermal conductivity coefficient, at the back termination water-supply pipe of big metal bellow, water-supply pipe is with big, the cavity that forms between the little metal bellow links to each other.
Between big metal bellow and water-supply pipe, a ball valve is installed, is convenient to controlled chilling intensity.The slurry of high thermal conductivity coefficient is silicon carbide, silicon nitride or carbon element material.
Advantage of the present invention is: the invention solves the problem that damaged cooling wall works on, solved the problem of leaking, and the flow velocity height of water coolant, cooling intensity can reach requirement, and cooling intensity control is easily.More stable to making air-flow in the stove, slag crust is more firm, helps regular, cupola well active of the type of furnace, guarantee the stable smooth operation of blast furnace, energy-saving and cost-reducing, improve molten steel quality, and help maintenance, the works better of iron mouth and avoided the furnace bottom carbon brick to be subjected to the erosion of water coolant.The part that the present invention can well solve cooling stave cooling duct is burnt out stifled or the very little situation of passage, has solved the problem of leaking, and guarantees cooling intensity, prolongs the work-ing life of damaged cooling wall, solves the great difficult problem that the restriction blast furnace is produced.The situation of blast furnace cooling wall breakage is commonplace at present, adopts method method of the present invention that damaged cooling wall is worked again, prolongs the work-ing life of blast furnace cooling stave, has guaranteed cooling intensity, has avoided the extension of blast furnace cooling wall breakage.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Embodiment one
Pore channel cooling method of damaged cooling wall of blast furnace, carry out according to the following steps:
(1) at cooling duct blocks or near the cooling stave that blocks, damaged cooling wall is separated separately;
(2) in the water inlet pipe of cooling stave and rising pipe, respectively insert a metal bellow, the front end of metal bellow with plug stifled on;
(3) insert a metal bellow that caliber is littler again in metal bellow, the front end of flexible pipe blocks up with plug, opens several little ducts on plug;
(4) irritate the slurry of high thermal conductivity coefficient between cooling stave and big metal bellow, the slurry of high thermal conductivity coefficient can be silicon carbide, silicon nitride or carbon element material.
(5) at the back termination water-supply pipe of big metal bellow, with the cavity of water coolant by forming between the large and small metal bellow, little duct on little metal bellow plug enters little metal bellow again, flow out by little metal bellow, reach the refrigerative effect, between big metal bellow and water-supply pipe, a ball valve is installed, is convenient to controlled chilling intensity.
The device of pore channel cooling method of damaged cooling wall of blast furnace, comprise cooling stave water inlet pipe and rising pipe, in the water inlet pipe of cooling stave duct inwall 3 and rising pipe, respectively insert a big metal bellow 1, the front end of big metal bellow 1 blocks up with copper plug 5, insert the little metal bellow 2 that caliber is littler for 1 li at big metal bellow, the front end of tubule footpath metal bellow 2 blocks up with the plug 6 of perforate, between cooling stave duct inwall 3 and big metal bellow 1, irritate high thermal conductivity coefficient slurry 4, back termination water-supply pipe 8 at big metal bellow 1, water-supply pipe 8 is with big, the cavity that forms between the little metal bellow links to each other, and water-supply pipe 8 is provided with ball valve 7.
The invention solves the problem that damaged cooling wall works on, solved the problem of leaking, the flow velocity height of water coolant, cooling intensity can reach requirement, and cooling intensity control is easily.More stable to making air-flow in the stove, slag crust is more firm, helps regular, cupola well active of the type of furnace, guarantee the stable smooth operation of blast furnace, energy-saving and cost-reducing, improve molten steel quality, and help maintenance, the works better of iron mouth and avoided the furnace bottom carbon brick to be subjected to the erosion of water coolant.
The present invention can also have other embodiment, and the technical scheme that equal replacement of all employings or equivalent transformation form all drops within the scope of protection of present invention.
Claims (4)
1. pore channel cooling method of damaged cooling wall of blast furnace is characterized in that: carry out according to the following steps:
(1) at cooling duct blocks or near the cooling stave that blocks, damaged cooling wall is separated separately;
(2) in the water inlet pipe of cooling stave and rising pipe, respectively insert a metal bellow, the front end of metal bellow with plug stifled on;
(3) insert a metal bellow that caliber is littler again in metal bellow, the front end of flexible pipe blocks up with plug, opens several little ducts on plug;
(4) irritate the slurry of high thermal conductivity coefficient between cooling stave and big metal bellow, the slurry of described high thermal conductivity coefficient is silicon carbide, silicon nitride or carbon element material;
(5) at the back termination water-supply pipe of big metal bellow, with the cavity of water coolant by forming between the large and small metal bellow, little duct on little metal bellow plug enters little metal bellow again, is flowed out by little metal bellow, reaches the refrigerative effect.
2. pore channel cooling method of damaged cooling wall of blast furnace as claimed in claim 1 is characterized in that: a ball valve is installed between described big metal bellow and water-supply pipe, is convenient to controlled chilling intensity.
3. the device that is used for the described pore channel cooling method of damaged cooling wall of blast furnace of claim 1, comprise cooling stave water inlet pipe and rising pipe, it is characterized in that: in the water inlet pipe of described cooling stave and rising pipe, respectively insert a metal bellow, the front end of described metal bellow blocks up with plug, in described metal bellow, insert the metal bellow that caliber is littler, the front end of described tubule footpath metal bellow blocks up with plug, on the metal bellow plug of described tubule footpath, open several apertures, between described cooling stave and big metal bellow, irritate the slurry of high thermal conductivity coefficient, at the back termination water-supply pipe of described big metal bellow, described water-supply pipe and described big, the cavity that forms between the little metal bellow links to each other.
4. the device of pore channel cooling method of damaged cooling wall of blast furnace as claimed in claim 3, it is characterized in that: described water-supply pipe is provided with ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102130140A CN101705320B (en) | 2009-11-03 | 2009-11-03 | Pore channel cooling method of damaged cooling wall of blast furnace and device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102130140A CN101705320B (en) | 2009-11-03 | 2009-11-03 | Pore channel cooling method of damaged cooling wall of blast furnace and device thereof |
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| CN101705320A CN101705320A (en) | 2010-05-12 |
| CN101705320B true CN101705320B (en) | 2011-01-05 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102107271B (en) * | 2010-12-31 | 2013-01-16 | 烟台万隆真空冶金有限公司 | Endogenous-steam cooling casting method for castings |
| CN106521062A (en) * | 2016-12-14 | 2017-03-22 | 四川德胜集团钒钛有限公司 | Repairing method of blast furnace cooling wall water cooling system |
| CN113502364A (en) * | 2021-06-10 | 2021-10-15 | 上海宝冶冶金工程有限公司 | Method and structure for passing water-cooled tube at bottom of blast furnace |
| CN114990266B (en) * | 2022-05-26 | 2024-01-16 | 武汉钢铁有限公司 | Blast furnace cooler capable of blocking damaged part |
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