CN101914645B - Method and device for blocking and unchoking blast furnace tuyere - Google Patents
Method and device for blocking and unchoking blast furnace tuyere Download PDFInfo
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- CN101914645B CN101914645B CN2010102668758A CN201010266875A CN101914645B CN 101914645 B CN101914645 B CN 101914645B CN 2010102668758 A CN2010102668758 A CN 2010102668758A CN 201010266875 A CN201010266875 A CN 201010266875A CN 101914645 B CN101914645 B CN 101914645B
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- furnace tuyere
- blast
- pressure gas
- blast furnace
- unchoking
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000000903 blocking effect Effects 0.000 title abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 31
- 239000003245 coal Substances 0.000 claims abstract description 25
- 230000007306 turnover Effects 0.000 claims description 8
- 239000011819 refractory material Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000009970 fire resistant effect Effects 0.000 description 7
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 239000004927 clay Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003721 gunpowder Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to a method and a device for blocking and unchoking a blast furnace tuyere. The device for blocking the blast furnace tuyere can be tightly embedded in a small sleeve of the blast furnace tuyere, is a hollow component made from a crisp fireproof material and is provided with an upper end opening and a closed lower end. The method for blocking and unchoking the blast furnace tuyere comprises the following steps of: tightly embedding the device for blocking the blast furnace tuyere in the small sleeve of the blast furnace tuyere so as to block the blast furnace tuyere; and emitting rigid objects by a spraying or ejecting device to break the closed end of the device for blocking the blast furnace tuyere so as to unchok the through hole. The device for unchoking the blast furnace tuyere, which is matched with the method, optimally adopts spraying equipment mainly formed by modifying a coal gun. The device of the invention has simple structure, easy production and low cost, can generate favorable effects of blocking and unchoking the blast furnace tuyere. Meanwhile, the matched method is easy to implement, has high yield and can effectively ensure the safety of a staff and the smooth operation of production.
Description
Technical field
The present invention is specifically related to a kind of device of blast-furnace tuyere and the method and device of unchoking blast furnace tuyere of stopping up.
Technical field
The young cover of all air intakes all opens wide in the blast furnace ordinary production; But during conditions of blast furnace generation severe disorder; Be to guarantee the certain blast energy of blast furnace, need interim blocking portion tuyere small sleeve: or, when the young cover breakage of part air intake is leaked when serious; For a large amount of cohesion of formation slag iron before not making the tuyere small sleeve that leaks burn out tuyere small sleeve once more, often also need the young cover of interim this regional air intake of obstruction.The mode of traditional young cover of obstruction blast furnace air inlet mainly is to stop up the air port with manual type with loose shape indefinite form refractory matter such as water stemming material etc.; But because the defective of putty itself and the difference of operator's state of the art; Blocked tuyere small sleeve often taking place blow open automatically, maybe need disclose when blowing in young cover and disclose not open, and putty is not in the tuyere small sleeve front position; Cause tuyere small sleeve to burn out or blowpipe burns accident, have a strong impact on thereby conditions of blast furnace and production caused.
The utility model that patent publication No. CN2934249, open day are on August 15th, 2007 has proposed a kind of fire-resistant core 1 that is used to stop up blast furnace tuyere small sleeve; It is a frusto-conical; The length of fire-resistant core is 70～100mm: fire-resistant core upper bottom surface 3 equates that with the young cover internal diameter of air intake the bottom surface center of circle is left one and disclosed pore 4 with bottom surface 2 diameters.Disclosing the pore aperture is 20～40mm; Disclosing the pore degree of depth is 1/3～1/2 of the fire-resistant core length overall of frustum of a cone.Be easy to the defective that dispelled though this utility model has overcome the stifled air port of amorphous refractory, it still needs the manual mode mediation, and connects comparatively difficulty of operation.
Summary of the invention
One of the object of the invention is to propose a kind of obstruction blast-furnace tuyere device, and it can firmly stop up blast-furnace tuyere, and can connect easily, thereby overcomes deficiency of the prior art.
For realizing the foregoing invention purpose, the present invention has adopted following technical scheme:
A kind of device that stops up blast-furnace tuyere, it can closely be embedded in the blast furnace tuyere small sleeve, it is characterized in that, the hollow member of this device for processing by the fragility refractory materials, its open upper end, the lower end is a closedend.
Particularly, this device is frustum type shell member.
This device is flowerpot shape member.
Sheathed high temperature resistant body on the device outer wall of said obstruction blast-furnace tuyere.
The method of a kind of obstruction and unchoking blast furnace tuyere is characterized in that this method is:
The device that (1) will stop up blast-furnace tuyere as stated closely is embedded in the blast furnace tuyere small sleeve, thereby blast-furnace tuyere is stopped up;
(2) smash the device closedend of said obstruction blast-furnace tuyere with an injection or catapult-launching gear emission rigid objects, thereby blast-furnace tuyere is connected.
Further; Said injection or catapult-launching gear adopt the spraying high-pressure gas device with straight tube-like structure; And set gradually two air valves along the spraying high-pressure gas direction in the said tubular structure; Offer one on the tube wall between these two air valves and can supply the side valve of a spherical rigid objects turnover, the internal diameter of said spherical rigid objects diameter≤said tubular structure.
Said step (2) is specially:
A) get one have a tubular structure the spraying high-pressure gas device, and two air valves are set in this spraying high-pressure gas device, and offer one between these two valves on the tube wall and can supply the side valve of a spherical rigid objects turnover along the spraying high-pressure gas direction;
B) close above-mentioned two air valves, open side valve, a spherical rigid objects is inserted in the spraying high-pressure gas device, close side valve again;
C) exit end with the spraying high-pressure gas device points to blast furnace tuyere small sleeve; And open above-mentioned two air valves rapidly; Spherical rigid objects is flown out by spraying high-pressure gas device exit end under the promotion of high pressure gas; And smash the closedend of the device of said obstruction blast-furnace tuyere, blast-furnace tuyere is connected.
The specific operation process of opening air valve among the step c is: at first open the air valve away from spraying high-pressure gas device exit end, then open the air valve near spraying high-pressure gas device exit end rapidly.
Said spraying high-pressure gas device adopts the coal rifle.
A kind of device of unchoking blast furnace tuyere; Being used to connect employing stops up the blast furnace that the device of blast-furnace tuyere stops up as stated and seals; It is characterized in that: this device is one to have the spraying high-pressure gas device of straight tube-like structure; The direction that its exit end is pointed in this spraying high-pressure gas device upper edge sets gradually at least two air valves; At least one side valve that supplies the spherical rigid objects turnover of diameter≤spraying high-pressure gas device internal diameter is set on the tube wall between these two air valves, and is connected with in the spraying high-pressure gas device and can promotes the high pressure gas that spherical rigid objects smashes the device that stops up blast-furnace tuyere.
The device of this unchoking blast furnace tuyere comprises a coal rifle; The direction that its exit end is pointed in this coal rifle upper edge sets gradually two air valves; Be provided with one on the coal rifle rifle wall between these two air valves and can supply the side valve of spherical rigid objects turnover, and be connected with in the coal rifle and can promote the high pressure gas that spherical rigid objects smashes the device that stops up blast-furnace tuyere.
The present invention adopts materials such as potter's clay to process lower end closed; The hollow member of open upper end; The shell member of frustum type particularly, and with the obstruction blast furnace tuyere small sleeve, not only overcome in the conventional art and to have stopped up blast-furnace tuyere with the indefinite form bulk material and be easy to the defective that dispelled; And the thickness compared to prior art is big, disclose the little fire-resistant core of pore bore, is easier to connect.Preferably; Can be provided with high temperature resistant body on the device outer wall of said obstruction blast-furnace tuyere; Prevent in the process of installing to make the device that stops up blast-furnace tuyere impaired, in addition owing to receive external impacts; High temperature resistant by this body also can reach order and stop up between device and the blast furnace tuyere small sleeve of blast-furnace tuyere and realize sealing fully.
Further, the danger that possibly exist when considering in the prior art with the manual mode unchoking blast furnace tuyere, the invention allows for adopt spray or catapult-launching gear emission rigid objects to impact plugging device to its closedend of above-mentioned blast furnace tuyere small sleeve broken; Thereby the technical scheme of conducting blast-furnace tuyere; The technical scheme operator need not near blast-furnace tuyere by this, have ensured its personnel safety, have larger caliber and than minimal thickness again and because of the device of above-mentioned obstruction blast-furnace tuyere; Be easy to grappling; Be easy to smash, be easy to carry out thereby make to connect to operate, success ratio is high.
Above-mentioned injection or catapult-launching gear can adopt with high pressure gas, spring, drag-line etc. as the conventional manual of propulsion source or spray automatically or catapult-launching gear, like similar gunpowder firearms, air gun or bow and crossbow etc.But consider the particular surroundings of steel-making iron work, the present invention preferably adopts spraying high-pressure gas appliance arrangement structures such as coal rifle is improved, and makes it to form a kind of device of unchoking blast furnace tuyere; The staff is when needs mediation blast-furnace tuyere; Only need in the coal rifle, to pass to high pressure gas etc., and air valve on the coal rifle and side valve etc. are carried out simple operations, promptly can the coal rifle eject; Steel ball with big kinetic energy smashes the device of above-mentioned obstruction blast-furnace tuyere; Its propulsion source is cheap and easy to get, and is simple in structure, easy handling.
Compared with prior art, beneficial effect of the present invention is: the apparatus structure of this obstruction blast-furnace tuyere is simple, is easy to produce, and is with low cost; And can firmly stop up blast furnace tuyere small sleeve, and be easy to connect, simultaneously; The method that is used to connect the blast-furnace tuyere that the device with this obstruction blast-furnace tuyere stops up is convenient to implement, and success ratio is high, and cost is low; Can effectively guarantee staff's the safety and the trouble-free operation of production, the corollary apparatus of this method is simple in structure simultaneously, is easy to produce safeguard.The present invention can be widely used in all kinds of blast furnaces or the enterprises such as coking, oil refining.
Description of drawings
Fig. 1 is the structural representation of a kind of fire-resistant core in the prior art;
Fig. 2 is a kind of structural representation that stops up the device of blast-furnace tuyere in the specific embodiment of the invention;
Fig. 3 is another structural representation that stops up the device of blast-furnace tuyere in the specific embodiment of the invention;
Fig. 4 is the structural representation of a kind of device of unchoking blast furnace tuyere in the specific embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment content of the present invention is further specified.
Shown in Fig. 2～4; A kind of device that stops up blast-furnace tuyere, it can closely be embedded in the blast furnace tuyere small sleeve 6, the flowerpot shape member 5 of this device for being processed by materials such as fire-resistant potter's clay, fragility stone material, clay, graphite; Its upper end 51 openings, lower end 52 is a closedend.
Further, also can sheathed one high temperature resistant body 8 on the outer wall of above-mentioned flowerpot shape member 5, it can prevent that flowerpot shape member 5 is impaired owing to receive external impacts in the process of installing, and can make and realize sealing fully between flowerpot shape member 5 and the blast furnace tuyere small sleeve.
Perforation by the method for the blast-furnace tuyere that said apparatus stops up is: smash the device closedend of said obstruction blast-furnace tuyere with an injection or catapult-launching gear emission rigid objects, thereby blast-furnace tuyere is connected.
Above-mentioned injection or catapult-launching gear are optional in order to conventional sparging unit or the catapult-launching gear as propulsion source such as high pressure gas, spring, drag-line; Like equipment of similar gunpowder firearms, air gun or bow and crossbow etc., the rigid objects of its emission can be selected not hard thing of specified shape of sphere, bulk or other for use.
Preferably; This case contriver utilizes the common equipment in steel-making, the iron work to develop a kind of device of unchoking blast furnace tuyere; It comprises a coal rifle 7; The direction that its exit end is pointed in this coal rifle upper edge sets gradually two air valves 71,72; Be provided with one on the coal rifle rifle wall between these two air valves and can supply the side valve 73 of the spherical rigid objects of a spherical rigid objects (like the hard spheroid of steel ball, iron ball, stone ball, shot or other materials) 74 turnover, and be connected with in the coal rifle and can promote the high pressure gas (flowing to A) that spherical rigid objects smashes the device that stops up blast-furnace tuyere.This sphere rigid objects diameter is slightly less than coal rifle internal diameter.The air pressure of high pressure gas is adjustable, but should reach such standard at least, and the kinetic energy that makes spherical rigid objects puncture said basin-shaped component lower end 52 can be provided.
The blast furnace method for sealing that adopts the device of above-mentioned obstruction blast-furnace tuyere to stop up with the device perforation of above-mentioned unchoking blast furnace tuyere is:
Close above-mentioned two air valves 71,72, open side valve 73, spherical rigid objects 74 is inserted in the coal rifle, close side valve again;
The exit end of coal rifle is pointed to blast furnace tuyere small sleeve; At first open air valve 71 away from coal rifle exit end; Then open air valve 72 rapidly near coal rifle exit end; Spherical rigid objects is flown out by coal rifle exit end under the promotion of high pressure gas, and puncture the device of above-mentioned obstruction blast-furnace tuyere, blast-furnace tuyere is connected.
The above is merely in order to explain the present invention's preferred embodiment; Be not that the attempt tool is to do any formal restriction to the present invention; Be with, all have in following any modification or change of doing relevant the present invention of identical invention spirit, all must be included in the category that the invention is intended to protection.
Claims (6)
1. device that stops up blast-furnace tuyere, it can closely be embedded in the blast furnace tuyere small sleeve, it is characterized in that, the frustum type shell member of this device for processing by the fragility refractory materials, its open upper end, the lower end is a closedend.
2. the device of obstruction blast-furnace tuyere according to claim 1 is characterized in that: sheathed high temperature resistant body on the device outer wall of said obstruction blast-furnace tuyere.
3. one kind is stopped up and the method for unchoking blast furnace tuyere, it is characterized in that this method is:
(1) device with the described obstruction blast-furnace tuyere of claim 1 closely is embedded in the blast furnace tuyere small sleeve, thereby blast-furnace tuyere is stopped up;
(2) get one have the straight tube-like structure the spraying high-pressure gas device, and two air valves are set in this spraying high-pressure gas device, and offer one between these two valves on the tube wall and can supply the side valve of a spherical rigid objects turnover along the spraying high-pressure gas direction;
Close above-mentioned two air valves, open side valve, a spherical rigid objects is inserted in the spraying high-pressure gas device, close side valve again;
The exit end of spraying high-pressure gas device is pointed to blast furnace tuyere small sleeve; And open rapidly successively away from the air valve of spraying high-pressure gas device exit end with near the air valve of spraying high-pressure gas device exit end; Spherical rigid objects is flown out by spraying high-pressure gas device exit end under the promotion of high pressure gas; And smash the closedend of the device of said obstruction blast-furnace tuyere, blast-furnace tuyere is connected.
4. the method for obstruction as claimed in claim 3 and unchoking blast furnace tuyere is characterized in that: said spraying high-pressure gas device adopts the coal rifle.
5. the device of a unchoking blast furnace tuyere; Being used to connect employing stops up the blast furnace that the device of blast-furnace tuyere stops up according to claim 1 and seals; It is characterized in that: this device is one to have the spraying high-pressure gas device of straight tube-like structure; The direction that its exit end is pointed in this spraying high-pressure gas device upper edge sets gradually at least two air valves; At least one side valve that supplies the spherical rigid objects turnover of diameter≤spraying high-pressure gas device internal diameter is set on the tube wall between these two air valves, and is connected with in the spraying high-pressure gas device and can promotes the high pressure gas that spherical rigid objects smashes the device that stops up blast-furnace tuyere.
6. the device of unchoking blast furnace tuyere according to claim 5; It is characterized in that: the device of this unchoking blast furnace tuyere adopts a coal rifle; The direction that its exit end is pointed in this coal rifle upper edge sets gradually two air valves; Be provided with one on the coal rifle rifle wall between these two air valves and can supply the side valve of spherical rigid objects turnover, and be connected with in the coal rifle and can promote the high pressure gas that spherical rigid objects smashes the device of said obstruction blast-furnace tuyere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102668758A CN101914645B (en) | 2010-08-31 | 2010-08-31 | Method and device for blocking and unchoking blast furnace tuyere |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102668758A CN101914645B (en) | 2010-08-31 | 2010-08-31 | Method and device for blocking and unchoking blast furnace tuyere |
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| Publication Number | Publication Date |
|---|---|
| CN101914645A CN101914645A (en) | 2010-12-15 |
| CN101914645B true CN101914645B (en) | 2012-07-04 |
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| CN2010102668758A Active CN101914645B (en) | 2010-08-31 | 2010-08-31 | Method and device for blocking and unchoking blast furnace tuyere |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6016549B2 (en) * | 2012-09-20 | 2016-10-26 | 三菱重工業株式会社 | Slag remover |
| CN103725817A (en) * | 2012-10-16 | 2014-04-16 | 广东韶钢松山股份有限公司 | Blast-furnace tuyere blocking device |
| CN104313223A (en) * | 2014-10-31 | 2015-01-28 | 山东钢铁股份有限公司 | Adjusting device for air intake area of blast furnace air intake |
| CN107805679B (en) * | 2017-10-31 | 2019-09-20 | 马鞍山钢铁股份有限公司 | A kind of blast-furnace tuyere burn after rapid plugging method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100782686B1 (en) * | 2001-08-14 | 2007-12-07 | 주식회사 포스코 | Automatic shredding device of blast furnace outer wall |
| JP2006241534A (en) * | 2005-03-04 | 2006-09-14 | Jfe Steel Kk | Blast furnace tuyere closing tool |
| CN2867263Y (en) * | 2005-12-16 | 2007-02-07 | 沈志盛 | Pneumatic push device |
| CN2934249Y (en) * | 2006-07-28 | 2007-08-15 | 上海梅山钢铁股份有限公司 | A kind of refractory core used to block the small sleeve of blast furnace tuyere |
| KR100805719B1 (en) * | 2006-12-19 | 2008-02-21 | 주식회사 포스코 | Apparatus for opening a closed furnace vent |
| CN201770717U (en) * | 2010-08-31 | 2011-03-23 | 江苏沙钢集团有限公司 | Device for blocking and conducting blast-furnace tuyere |
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| CN101914645A (en) | 2010-12-15 |
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