CN2647866Y - Homogenizing pressure apparatus for air density case of blast furnace top without bell - Google Patents
Homogenizing pressure apparatus for air density case of blast furnace top without bell Download PDFInfo
- Publication number
- CN2647866Y CN2647866Y CN 03258228 CN03258228U CN2647866Y CN 2647866 Y CN2647866 Y CN 2647866Y CN 03258228 CN03258228 CN 03258228 CN 03258228 U CN03258228 U CN 03258228U CN 2647866 Y CN2647866 Y CN 2647866Y
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- CN
- China
- Prior art keywords
- blast furnace
- airtight box
- pressure
- airtight
- gas
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- Expired - Fee Related
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Abstract
The utility model discloses a pressure equalizing device of an airtight chest of a blast furnace and a furnace top with no bell, and device is designed to prevent the gas of the blast furnace from entering into the airtight chest and damaging the parts in the chest, and to keep the normal work of the furnace top with no bell. The utility model includes a shell of the airtight chest which is connected with a sealed cowling of the blast furnace gas and nitrogen pipes leading to the airtight chest. The utility model is characterized in that a pressure equalizing equipment is arranged outside the sealed cowling of the blast furnace gas and the shell of the airtight chest, the pressure equalizing equipment is a close shell, the inner part of the pressure equalizing equipment is arranged with a water seal and a bucket covered on the water seal, the bottom of the pressure equalizing equipment is connected with the shell of the airtight chest by pipes, and the upper part of the pressure equalizing equipment is directly connected with the sealed cowling of the blast furnace gas or connected by an ascending tube of the blast furnace gas. The utility model can keep the pressure in the airtight chest vary along with the change of the pressure of the gas of the blast furnace top, keep the pressure in the airtight chest a bit higher than the pressure of the gas of the blast furnace, and use a little nitrogen to keep the slight pressure difference between the airtight chest and the gas of the furnace top to maintain the balance.
Description
Technical field: the utility model relates to the equalizing device that a kind of blast furnace does not have clock furnace roof airtight box.
Background technology: at present, in the prior art, the no clock top airtight box of Iron And Steel Industry blast furnace for the raw gas that prevents blast furnace enters the component that damage in it in case, guarantees no clock furnace roof works better, mainly contains air seal and the two kinds of methods of water-cooled water-sealed taked.Preceding a kind of method is by logical nitrogen in airtight box, makes the pressure of the interior pressure of airtight box a little more than the furnace roof raw gas, thereby reaches the purpose of sealing; A kind of method in back is to pass to nitrogen in the airtight box and all press and guarantee not have clock furnace roof works better by establishing water sealed tank between the turning unit of airtight box and fixing part, utilize the water-lute blast furnace raw gas in the groove, giving simultaneously.The common defects of two kinds of methods is that the consumption of nitrogen is bigger, increases production cost; And the nitrogen in the airtight box enters the efficient that blast furnace gas can make blast furnace gas calorific value reduce to have influence on blast furnace; Wherein a kind of method in back also exists and feeds the phenomenon of leaking in the oriented stove behind the nitrogen.
The utility model content:
Task of the present utility model is, provide a kind of blast furnace not have clock furnace roof airtight box equalizing device at the problems referred to above, this device can make the change in pressure of the interior pressure of airtight box with blast furnace furnace roof raw gas, and make the interior pressure of airtight box a little more than blast furnace raw gas pressure, keep the nitrogen balance airtight box of feeding airtight box and the small pressure reduction of stock gas.
Technical solution of the present utility model is:, a kind of blast furnace does not have clock furnace roof airtight box equalizing device, comprise airtight box housing that is connected with the blast furnace gas sealing cover and the nitrogen pipeline that feeds airtight box, it is characterized in that: between intravital revolving part of airtight box shell and mounting block, be provided with the airtight box gap, be provided with one in the outside of blast furnace gas sealing cover and airtight box housing and all press equipment, this all presses device external is all to press apparatus casing, all press the interior bottom of apparatus casing to be provided with water seal, top is covered with a staving, all press the apparatus casing bottom to be connected with the airtight box housing by pipeline, top directly is connected with the blast furnace gas sealing cover by pipeline or is connected with the blast furnace gas sealing cover by the blast furnace gas upcast again, wherein, nitrogen pipeline is connected with airtight box and all presses the pipeline of equipment to be connected.
Compared with prior art, advantage of the present utility model is:
(1) since all pressure equipment be communicated with blast furnace gas sealing cover 8 by pipeline and the airtight box gap that connects nitrogen, make the space of all pressing a sealing of formation between equipment staving, water seal and the airtight tank shell.Like this, when the pressure in the blast furnace gas sealing cover raises, all press the staving in the apparatus casing to descend thereupon, cause the airtight box internal pressure to raise; Otherwise, when the pressure in the blast furnace gas sealing cover reduces, all press the staving in the apparatus casing to rise thereupon, cause the airtight box internal pressure to descend, promptly the nature of the pressure in the airtight box is along with the change in pressure of blast furnace furnace roof raw gas.
(2), so just avoided the phenomenon of leaking in the oriented stove behind the feeding nitrogen owing to cancellation water seal between airtight box revolving part and mounting block replaces the gap.Because the nitrogen amount that is fed during operation is slightly larger than the spillage in airtight box gap, staving weight is light again, all press the space and the interior pressure reduction of blast furnace gas sealing cover that form between equipment staving, water seal and the airtight tank shell very little so make, so the spillage in airtight box revolving part and mounting block gap is also very little.
(3) because when blast furnace gas sealing cover internal pressure was stablized, staving was elevated to the extreme higher position, a part of nitrogen leaks by all pressing the equipment water seal; When the nitrogen that raise to feed when blast furnace gas sealing cover internal pressure can not compensate, staving 3 times will, when blast furnace gas sealing cover internal pressure reduced, staving raise, part nitrogen is by the leakage of equal setting-out envelope when arriving the extreme higher position.Therefore, no matter how blast furnace gas sealing cover internal pressure fluctuates, and the space pressure of all pressing the sealing that forms between equipment staving, water seal, connecting pipe and the airtight tank shell is all a little more than producer gas sealing cover internal pressure.
(4) if the utility model is used for the no clock furnace roof of water-cooled water-sealed, promptly adopt water seal between airtight box revolving part and the mounting block, then the nitrogen consumption is minimum.Its working process and aforesaid (3) point are basic identical.But, because staving is in light weight, connecting pipe, all press the interior pressure reduction of the space that forms between equipment staving, water seal and the airtight tank shell and blast furnace gas sealing cover very little, so the water seal between airtight box revolving part and mounting block can not leaked yet in stove.
Description of drawings: Fig. 1 is a structural representation sketch of the present utility model.
Embodiment: as shown in the figure, this blast furnace does not have clock furnace roof airtight box equalizing device, comprise airtight box housing that is connected with the blast furnace gas sealing cover and the nitrogen pipeline that feeds airtight box, it is characterized in that: be provided with airtight box gap 5 between revolving part in airtight box housing 6 and the mounting block, be provided with one in the outside of blast furnace gas sealing cover 8 and airtight box housing 6 and all press equipment, this all presses device external is all to press apparatus casing 2, all press apparatus casing 2 interior bottoms to be provided with water seal 4, top is covered with a staving 3, all press apparatus casing 2 bottoms to be connected with airtight box housing 6 by pipeline 1, top directly is connected with blast furnace gas sealing cover 8 by pipeline 7, perhaps be connected with blast furnace gas sealing cover 8 again by the blast furnace gas upcast, wherein, nitrogen pipeline 9 is connected with pipeline 1.
Claims (1)
1, a kind of blast furnace does not have clock furnace roof airtight box equalizing device, comprise airtight box housing that is connected with the blast furnace gas sealing cover and the nitrogen pipeline that feeds airtight box, it is characterized in that: be provided with airtight box gap (5) between revolving part in airtight box housing (6) and the mounting block, be provided with one in the outside of blast furnace gas sealing cover (8) and airtight box housing (6) and all press equipment, this all presses device external is all to press apparatus casing (2), all press the interior bottom of apparatus casing (2) to be provided with water seal (4), top is covered with a staving (3), all press apparatus casing (2) bottom to be connected with airtight box housing (6) by pipeline (1), top directly is connected with blast furnace gas sealing cover (8) by pipeline (7), perhaps be connected with blast furnace gas sealing cover (8) again by the blast furnace gas upcast, wherein, nitrogen pipeline (9) is connected with pipeline (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03258228 CN2647866Y (en) | 2003-08-06 | 2003-08-06 | Homogenizing pressure apparatus for air density case of blast furnace top without bell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03258228 CN2647866Y (en) | 2003-08-06 | 2003-08-06 | Homogenizing pressure apparatus for air density case of blast furnace top without bell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2647866Y true CN2647866Y (en) | 2004-10-13 |
Family
ID=34328857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03258228 Expired - Fee Related CN2647866Y (en) | 2003-08-06 | 2003-08-06 | Homogenizing pressure apparatus for air density case of blast furnace top without bell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2647866Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857809A (en) * | 2010-05-30 | 2010-10-13 | 张家界三木能源开发有限公司 | Sealing device for biomass gasification furnace |
| CN102388152A (en) * | 2009-04-28 | 2012-03-21 | 保尔伍斯股份有限公司 | Method for feeding a burden to a blast furnace |
| CN102586518A (en) * | 2012-01-10 | 2012-07-18 | 中冶南方工程技术有限公司 | Method for carrying out voltage-sharing bleeding on furnace top of blast furnace by using nitrogen |
-
2003
- 2003-08-06 CN CN 03258228 patent/CN2647866Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102388152A (en) * | 2009-04-28 | 2012-03-21 | 保尔伍斯股份有限公司 | Method for feeding a burden to a blast furnace |
| CN102388152B (en) * | 2009-04-28 | 2015-04-01 | 保尔伍斯股份有限公司 | Method for feeding a burden to a blast furnace |
| CN101857809A (en) * | 2010-05-30 | 2010-10-13 | 张家界三木能源开发有限公司 | Sealing device for biomass gasification furnace |
| CN102586518A (en) * | 2012-01-10 | 2012-07-18 | 中冶南方工程技术有限公司 | Method for carrying out voltage-sharing bleeding on furnace top of blast furnace by using nitrogen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wu Manjie Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041013 Termination date: 20090907 |