CN203796988U - Ball valve for blast furnace coal injection gun - Google Patents
Ball valve for blast furnace coal injection gun Download PDFInfo
- Publication number
- CN203796988U CN203796988U CN201420005104.7U CN201420005104U CN203796988U CN 203796988 U CN203796988 U CN 203796988U CN 201420005104 U CN201420005104 U CN 201420005104U CN 203796988 U CN203796988 U CN 203796988U
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- valve body
- connecting sleeve
- body case
- locking nut
- ball valve
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Abstract
The utility model provides a ball valve for a blast furnace coal injection gun. The ball valve comprises a locking nut, a buckle sleeve, a connecting sleeve, a valve body box and a fixed flange, wherein a ball and a guide rail are arranged in the valve body box; the locking nut, the buckle sleeve, the connecting sleeve, the valve body box and the fixed flange share the same center line; the locking nut, the buckle sleeve and the connecting sleeve are the same in inner diameter, but the inner diameter is smaller than the diameter of the ball in the valve body box; the vertical height of the valve body box is larger than the diameter of the ball and larger than the inner diameter of the connecting sleeve. The ball valve is reasonable in design, simple in structure, convenient to assemble and disassemble, long in service life and capable of being closed quickly and guaranteeing that combination is airtight, and therefore the ball valve can be widely used in blast-furnace equipment of the metallurgical industry.
Description
Technical field
The application relates to a kind of valve, especially relates to a kind of coal powder lance for blast furnace ball valve.
Background technique
In metallurgy technology, blast furnace is modal smelting equipment, and at present along with the extensive use of coal powder injection technology, coal spouting gun is also more and more for blast furnace iron-making process process.But, by coal spouting gun insert and extract in the process of blast furnace, the high-temperature atmosphere of high furnace interior can and outside low temperature between form passage, thereby cause steam leakage, cause the inhomogeneous of inside temperature.
Summary of the invention
For the problem in above industry, the application provides a kind of coal powder lance for blast furnace ball valve, and this ball valve can be applied on the coal spouting gun equipment of blast furnace.
Coal powder lance for blast furnace for when coal powder lance for blast furnace insertion with while extracting, for realizing opening and closing of equipment, can ensure to control hot gas in blast furnace not excessive with one of application of ball valve, can ensure again the stability of blast-furnace tuyere closure.
Coal powder lance for blast furnace with the application of ball valve two in order to realize the fixing of coal spouting gun, ensure that stable coal powder injection air-flow is input in blast furnace.
For above-mentioned technical problem, the utility model provides a kind of coal powder lance for blast furnace ball valve, and it comprises locking nut, buckle cover, connecting sleeve, valve body case and fastening flange, and described valve body case comprises spheroid and guide rail; Wherein said locking nut, buckle cover, connecting sleeve, valve body case and fastening flange have common center line; Wherein said locking nut, buckle cover and connecting sleeve have identical internal diameter, but described internal diameter is less than the diameter of described spheroid in described valve body case; The vertical height of wherein said valve body case is greater than the diameter of described spheroid, is greater than the internal diameter of described connecting sleeve.
Wherein locking nut can be used for ball valve and coal spouting gun to fix, and fastening flange can be used for ball valve and blast furnace to fix.
Further, the material of described locking nut is Q235 steel.
Further, the material of described buckle cover is Q235 steel.
Further, the material of described connecting sleeve is No. 45 steel.
Further, described fastening flange and valve body case are by being welded together.
In addition, in actual production, because the environment that coal powder lance for blast furnace uses with ball valve is sternly bad, easily there is damaged and corrosion equal loss, thereby have a strong impact on its working life, therefore, in order to keep the hardness of coal powder lance for blast furnace ball valve, can pass through on the surface of ball valve deposition process plating one deck hardened layer, hardened layer is hard alloy layer, it comprises carbide, nitride or the boride etc. of IVB, VB, group vib metal, and the method for deposition can be used physical vapor deposition and chemical vapor deposition.
Further, in order to keep the intensity of ball valve, pass through deposition process plating one deck wearing layer on the surface of ball valve, wearing layer is ceramic wearing coat, ceramic wearing coat is alumina layer, and alumina layer can obtain by conventional deposition process, for example vapor deposition.
In actual production, can be chosen in ball valve surface deposition hardened layer or wearing layer according to the actual service condition of ball valve, hardened layer and wearing layer can use one deck, also can use two-layer, and use when two-layer, the position of hard alloy layer and ceramic wearing coat can exchange.
In addition, and due to coal spouting gun with ball valve in use, also may touch various tight bad conditions, and in order to keep the corrosion resistance of ball valve, can comprise one deck anticorrosion layer at its outermost, for example plastic layer or high polymer layer, anticorrosion layer can obtain by the method applying.
According to foregoing description, the coal powder lance for blast furnace that the application provides has following beneficial effect with ball valve.
1, ball valve is reasonable in design, simple in structure.
2, ball valve can be realized quick-make, ensures in conjunction with tightly air tight.
3, ball valve can make coal spouting gun firmly install, and easy to loading and unloading, in use can not change because of vibration the position of spray gun.
4, ball valve can ensure that pulverized coal flow does not wash away air port, thereby reduces the replacing quantity of tuyere case.
5, ball valve can improve coal combustion rate, reduces energy consumption.
6, ball valve outer surface covers hardened layer and wear resistance can extend its working life greatly.
7, the use of ball valve can reduce the blast furnace staying time, increases economic efficiency.
The scheme of above-mentioned single scheme or combination can be reached above-described one or more advantage.The application's advantage, object and progressive significantly, and can be understood completely via specification, embodiment and accompanying drawing.
Brief description of the drawings
Fig. 1 is the sectional view of coal powder lance for blast furnace ball valve.
Fig. 2 is coal powder lance for blast furnace ball valve surface coating structural representation.
Wherein, reference character: locking nut---1, buckle cover---2, connecting sleeve---3, valve body case---4, fastening flange---5, spheroid---6, guide rail---7, hardened layer---8, wearing layer---9, anticorrosion layer---10.
Embodiment
Embodiment 1: a kind of coal powder lance for blast furnace ball valve, and it comprises locking nut 1, buckle cover 2, connecting sleeve 3, valve body case 4 and fastening flange 5, described valve body case comprises spheroid 6 and guide rail 7; Wherein said locking nut 1, buckle cover 2, connecting sleeve 3, valve body case 4 and fastening flange 5 have common center line; Wherein said locking nut 1, buckle cover 2 and connecting sleeve 3 have identical internal diameter, but described internal diameter is less than the diameter of the interior described spheroid 6 of described valve body case 4; The vertical height of wherein said valve body case 4 is greater than the diameter of described spheroid 6, is greater than the internal diameter of described connecting sleeve 3.
Embodiment 2: a kind of coal powder lance for blast furnace ball valve, and it comprises locking nut 1, buckle cover 2, connecting sleeve 3, valve body case 4 and fastening flange 5, described valve body case comprises spheroid 6 and guide rail 7; Wherein said locking nut 1, buckle cover 2, connecting sleeve 3, valve body case 4 and fastening flange 5 have common center line; Wherein said locking nut 1, buckle cover 2 and connecting sleeve 3 have identical internal diameter, but described internal diameter is less than the diameter of the interior described spheroid 6 of described valve body case 4; The vertical height of wherein said valve body case 4 is greater than the diameter of described spheroid 6, is greater than the internal diameter of described connecting sleeve 3.Be coated with successively hardened layer 8 on ball valve surface, wearing layer 9 and anticorrosion layer 10.
Embodiment 3: a kind of coal powder lance for blast furnace ball valve, and it comprises locking nut 1, buckle cover 2, connecting sleeve 3, valve body case 4 and fastening flange 5, described valve body case comprises spheroid 6 and guide rail 7; Wherein said locking nut 1, buckle cover 2, connecting sleeve 3, valve body case 4 and fastening flange 5 have common center line; Wherein said locking nut 1, buckle cover 2 and connecting sleeve 3 have identical internal diameter, but described internal diameter is less than the diameter of the interior described spheroid 6 of described valve body case 4; The vertical height of wherein said valve body case 4 is greater than the diameter of described spheroid 6, is greater than the internal diameter of described connecting sleeve 3.Be coated with successively hardened layer 8 and anticorrosion layer 10 on ball valve surface.
Embodiment 4: a kind of coal powder lance for blast furnace ball valve, and it comprises locking nut 1, buckle cover 2, connecting sleeve 3, valve body case 4 and fastening flange 5, described valve body case comprises spheroid 6 and guide rail 7; Wherein said locking nut 1, buckle cover 2, connecting sleeve 3, valve body case 4 and fastening flange 5 have common center line; Wherein said locking nut 1, buckle cover 2 and connecting sleeve 3 have identical internal diameter, but described internal diameter is less than the diameter of the interior described spheroid 6 of described valve body case 4; The vertical height of wherein said valve body case 4 is greater than the diameter of described spheroid 6, is greater than the internal diameter of described connecting sleeve 3.Be coated with successively wearing layer 9 and anticorrosion layer 10 on ball valve surface.
In the time of practical application, the coal powder lance for blast furnace ball valve providing in embodiment, the Multiple Types such as its inside nominal diameter can comprise 20,25,40mm, nominal pressure is controlled at 0.6MPa left and right, operating temperature control is not for generally higher than 350 DEG C, and working medium can be the mal-conditions such as coal dust, water, oil, dust-containing airflow.And the embodiment who mentions in the application is only example, should not be construed as the restriction of claim scope.Those skilled in the art can pick out multiple variation, modification and amendment.
In addition; in the situation that not deviating from the present application spirit and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the application certainly, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the application.
Claims (4)
1. a coal powder lance for blast furnace ball valve, it comprises locking nut, buckle cover, connecting sleeve, valve body case and fastening flange, described valve body case comprises spheroid and guide rail; Wherein said locking nut, buckle cover, connecting sleeve, valve body case and fastening flange have common center line; Wherein said locking nut, buckle cover and connecting sleeve have identical internal diameter, but described internal diameter is less than the diameter of described spheroid in described valve body case; The vertical height of wherein said valve body case is greater than the diameter of described spheroid, is greater than the internal diameter of described connecting sleeve; Be coated with successively hardened layer on ball valve surface, wearing layer and anticorrosion layer;
The material of wherein said locking nut is Q235 steel, and the material of described buckle cover is Q235 steel.
2. a coal powder lance for blast furnace ball valve, it comprises locking nut, buckle cover, connecting sleeve, valve body case and fastening flange, described valve body case comprises spheroid and guide rail; Wherein said locking nut, buckle cover, connecting sleeve, valve body case and fastening flange have common center line; Wherein said locking nut, buckle cover and connecting sleeve have identical internal diameter, but described internal diameter is less than the diameter of described spheroid in described valve body case; The vertical height of wherein said valve body case is greater than the diameter of described spheroid, is greater than the internal diameter of described connecting sleeve; Be coated with successively hardened layer and anticorrosion layer on ball valve surface;
The material of wherein said locking nut is Q235 steel, and the material of described buckle cover is Q235 steel.
3. a coal powder lance for blast furnace ball valve, it comprises locking nut, buckle cover, connecting sleeve, valve body case and fastening flange, described valve body case comprises spheroid and guide rail; Wherein said locking nut, buckle cover, connecting sleeve, valve body case and fastening flange have common center line; Wherein said locking nut, buckle cover and connecting sleeve have identical internal diameter, but described internal diameter is less than the diameter of described spheroid in described valve body case; The vertical height of wherein said valve body case is greater than the diameter of described spheroid, is greater than the internal diameter of described connecting sleeve; Be coated with successively wearing layer and anticorrosion layer on ball valve surface;
The material of wherein said locking nut is Q235 steel, and the material of described buckle cover is Q235 steel.
4. according to the coal powder lance for blast furnace ball valve described in any one in claim 1-3, the material that it is characterized in that described connecting sleeve is No. 45 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420005104.7U CN203796988U (en) | 2014-01-06 | 2014-01-06 | Ball valve for blast furnace coal injection gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420005104.7U CN203796988U (en) | 2014-01-06 | 2014-01-06 | Ball valve for blast furnace coal injection gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203796988U true CN203796988U (en) | 2014-08-27 |
Family
ID=51379200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420005104.7U Expired - Fee Related CN203796988U (en) | 2014-01-06 | 2014-01-06 | Ball valve for blast furnace coal injection gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203796988U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246959A (en) * | 2016-08-23 | 2016-12-21 | 中国十九冶集团有限公司 | Non-return valve |
| CN107267699A (en) * | 2017-06-12 | 2017-10-20 | 山东钢铁股份有限公司 | A kind of blast furnace injection device |
-
2014
- 2014-01-06 CN CN201420005104.7U patent/CN203796988U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246959A (en) * | 2016-08-23 | 2016-12-21 | 中国十九冶集团有限公司 | Non-return valve |
| CN107267699A (en) * | 2017-06-12 | 2017-10-20 | 山东钢铁股份有限公司 | A kind of blast furnace injection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Wu Caifeng Document name: Notification to Go Through Formalities of Registration |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20150106 |
|
| EXPY | Termination of patent right or utility model |