CN204589217U - The device that a kind of bell-less furnace top blast furnace process trunnion gets stuck - Google Patents
The device that a kind of bell-less furnace top blast furnace process trunnion gets stuck Download PDFInfo
- Publication number
- CN204589217U CN204589217U CN201520137359.3U CN201520137359U CN204589217U CN 204589217 U CN204589217 U CN 204589217U CN 201520137359 U CN201520137359 U CN 201520137359U CN 204589217 U CN204589217 U CN 204589217U
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- Prior art keywords
- blast furnace
- bell
- straight tube
- gets stuck
- less
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model belongs to the improvement of iron-smelting blast furnace bell-less furnace top feeding device structure, the particularly device that gets stuck of a kind of bell-less furnace top blast furnace process trunnion, comprise in blast furnace roof material loading airtight box and central throat tube is set, be connected to the straight tube of FlexbleJoint by upper flange above airtight box, uniform in the circumferential wall of straight tube through hole is set, the pipe connecting of respectively affixed downward inclination on through hole, pipe connecting is installed with valve, the outlet pipe that valve connects arranges rapid-acting coupling.The utility model is rational in infrastructure, can realize fast processing central throat tube and get stuck, make damping down time shorten, can realize protecting close silicon rubber loop, and protection lower seal, Accident prevention expands.
Description
Technical field
The utility model belongs to the improvement of iron-smelting blast furnace bell-less furnace top feeding device structure, particularly the device that gets stuck of a kind of bell-less furnace top blast furnace process trunnion.
Background technology
The blast furnace of some iron and steel enterprise adopts bell-less furnace top material loading, because central throat tube internal diameter is Φ 600mm in airtight box, and coke granule the longest more than 200mm in material, if the words that in coke, bulk is concentrated, just may produce the phenomenon of material card in trunnion, all kinds of special-shaped foreign material may be mixed in addition in material, they have passed each road foreign matter and flutter and catch device and enter in stove, it can block at trunnion place, and cause material to pass through, central throat tube card material is larger on the impact of producing, first its frequency is higher, secondly, the central throat tube intractability that gets stuck is large, traditional method will carry out damping down, after open lower close clack box manhole and disclose material, process needs 4h the soonest, if cannot damping down rapidly in blast furnace casting process, close silicon rubber loop under the rapid scaling loss of hot-air channel can be formed, cause fault spread.
Utility model content
The purpose of this utility model is the device providing a kind of bell-less furnace top blast furnace process trunnion to get stuck, and it is rational in infrastructure, can realize fast processing central throat tube and get stuck; make damping down time shorten; can realize protecting close silicon rubber loop, protection lower seal, Accident prevention expands.
The purpose of this utility model is achieved in that the device that a kind of bell-less furnace top blast furnace process trunnion gets stuck, comprise in blast furnace roof material loading airtight box and central throat tube is set, be connected to the straight tube of FlexbleJoint by upper flange above airtight box, uniform in the circumferential wall of straight tube through hole is set, the pipe connecting of respectively affixed downward inclination on through hole, pipe connecting is installed with valve, the outlet pipe that valve connects arranges rapid-acting coupling.
The straight tube of one section of connection airtight box upper flange and FlexbleJoint is had above blast furnace non-bell top airtight box, it is generally cast steel, thickness reaches more than 50mm, height specification is 500mm and 1200mm two kinds, the utility model respectively installs the disposal hole of a DN50 in 4 directions of straight tube, outside mounted valve and rapid-acting coupling, disposal hole and straight tube angle at 45 °; When occurring getting stuck phenomenon, can process according to following steps.
1, gas pulsation: install rapid-acting coupling rapidly, is filled with nitrogen by four interporal lacunas in central throat tube, produces vibrations by pressure variation, and reaches the effect that foreign material or bulk come off, and completes whole process;
2, nitrogen maintenance: be limited with 10min, if foreign material or bulk cannot come off, then often opens nitrogen valve, before blast furnace staying, carries out maintenance to lower sealing valve, prevents lower close silicon rubber loop scaling loss, stops fault spread.
If 3 cannot process, after damping down, remove rapid-acting coupling, open valve, material disclosed by use instrument, putty can be disclosed, and decreases lower clack box switching time, reaches the object shortening the treatment time.
The utility model is simple and reasonable for structure, achieves fast processing central throat tube and gets stuck, make damping down time shorten, achieve the protection to close silicon rubber loop, and protection lower seal, Accident prevention expands.
Accompanying drawing explanation
Be further described the utility model below in conjunction with accompanying drawing, Fig. 1 is sectional structure schematic diagram of the present utility model.
Embodiment
The device that a kind of bell-less furnace top blast furnace process trunnion gets stuck, as shown in Figure 1, comprise in blast furnace roof material loading airtight box and central throat tube is set, be connected to the straight tube 1 of FlexbleJoint by upper flange above airtight box, uniform in the circumferential wall of straight tube 1 through hole is set, the pipe connecting 2 of respectively affixed downward inclination on through hole, pipe connecting 2 is installed with valve 3, the outlet pipe that valve 3 connects arranges rapid-acting coupling 4.Uniform in the circumferential wall of straight tube 14 through holes are set.Pipe connecting 2 is 40 °-50 ° with the angle of straight tube 1 axis.
Claims (3)
1. the device that gets stuck of a bell-less furnace top blast furnace process trunnion, comprise in blast furnace roof material loading airtight box and central throat tube is set, be connected to the straight tube (1) of FlexbleJoint by upper flange above airtight box, it is characterized in that: uniform in the circumferential wall of straight tube (1) through hole is set, the pipe connecting (2) of respectively affixed downward inclination on through hole, pipe connecting (2) is installed with valve (3), the outlet pipe that valve (3) connects arranges rapid-acting coupling (4).
2. the device that gets stuck of a kind of bell-less furnace top blast furnace process trunnion according to claim 1, is characterized in that: uniformly in the circumferential wall of straight tube (1) arrange 4 through holes.
3. the device that gets stuck of a kind of bell-less furnace top blast furnace process trunnion according to claim 1, is characterized in that: pipe connecting (2) is 40 °-50 ° with the angle of straight tube (1) axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520137359.3U CN204589217U (en) | 2015-03-11 | 2015-03-11 | The device that a kind of bell-less furnace top blast furnace process trunnion gets stuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520137359.3U CN204589217U (en) | 2015-03-11 | 2015-03-11 | The device that a kind of bell-less furnace top blast furnace process trunnion gets stuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204589217U true CN204589217U (en) | 2015-08-26 |
Family
ID=53925390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520137359.3U Expired - Fee Related CN204589217U (en) | 2015-03-11 | 2015-03-11 | The device that a kind of bell-less furnace top blast furnace process trunnion gets stuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204589217U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111172340A (en) * | 2019-12-27 | 2020-05-19 | 河钢股份有限公司承德分公司 | Blast furnace bunker preparing device |
-
2015
- 2015-03-11 CN CN201520137359.3U patent/CN204589217U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111172340A (en) * | 2019-12-27 | 2020-05-19 | 河钢股份有限公司承德分公司 | Blast furnace bunker preparing device |
| CN111172340B (en) * | 2019-12-27 | 2021-11-19 | 河钢股份有限公司承德分公司 | Blast furnace bunker preparing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150826 Termination date: 20160311 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |