CN202648373U - Anti-jam structure for shaft furnace bustle pipe - Google Patents
Anti-jam structure for shaft furnace bustle pipe Download PDFInfo
- Publication number
- CN202648373U CN202648373U CN 201220245904 CN201220245904U CN202648373U CN 202648373 U CN202648373 U CN 202648373U CN 201220245904 CN201220245904 CN 201220245904 CN 201220245904 U CN201220245904 U CN 201220245904U CN 202648373 U CN202648373 U CN 202648373U
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- bustle pipe
- shaft furnace
- furnace
- sweeping
- improves
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- Expired - Fee Related
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- Manufacture Of Iron (AREA)
Abstract
Provided is an anti-jam structure for a shaft furnace bustle pipe. A shaft furnace bustle pipe sweeping mechanism is arranged above the shaft furnace bustle pipe. The anti-jam structure for the shaft furnace bustle pipe comprises a ring tube and a plurality of sweeping sub-tubes which are communicated with the ring tube. Each sweeping sub-tube is inserted into the bustle pipe and has an outlet which corresponds to a coal gas deoxidation outlet of the internal side of the bustle pipe. Each sweeping sub-tube is provided with a control valve. A sweeping system of the shaft furnace bustle pipe is added and used to sweep the bustle pipe by blowing regularly in order to prevent the bustle pipe from being jammed. And the additional sweeping system improves the air permeability of a furnace charge tock column on the front end of the bustle pipe, enables the deoxidation coal gas to be blown into the central position of the shaft furnace, distributes the coal gas flow more reasonably, deoxidates furnace charge completely, improves the metalization rate of furnace charge, improves the utilization rate of the coal gas, improves the work rate, guarantees that the production is stable and smooth and lowers the focal ration and the fuel ratio of a fusion gasification furnace and the cost of melted iron.
Description
Technical field
The utility model relates to smelting equipment, particularly a kind of shaft furnace bustle pipe blockage structure that prevents.
Background technology
Ironmaking technique of fusion and reduction is comprised of two parts up and down: the reduction shaft furnace of upper part and the melting gasification furnace of lower part.The generation coal gas that melting gasification furnace produces through convert the cooled coal gas cooling, after the cyclone dust collectors dedusting, obtain reducing gas, enter shaft furnace from shaft furnace bustle pipe, shaft furnace inside iron-containing charge is reduced.Because the inner furnace charge of shaft furnace can produce powder in the blanking process, the frequent control of dust in shaft furnace bustle pipe place, a large amount of Powdered furnace charges are piled up in the bustle pipe front end, or because the material of choking, and reducing gas is at the inner carbon dust of analysing carbon reaction generation of shaft furnace, cause shaft furnace bustle pipe to stop up, affect reducing gas and enter shaft furnace.Reducing gas stream can not enter shaft furnace inside, then affects the Gas Flow normal distribution, makes the gas pressure loss, has affected the reduction of reducing gas to iron-containing charge.
Especially, shaft furnace inside has increased by two ADG pipelines, shaft furnace occurs and surrounds and watches the pressure reduction rising, and gas utilization rate descends, the phenomenon that degree of metalization descends.Open the inspection bustle pipe and find that bustle pipe is all stopped up by the dust that coal gas is brought into.And if the shaft furnace bustle pipe blockage phenomenon, then further affect reducing gas from bustle pipe normally enter shaft furnace, reduced reducing gas enters shaft furnace from shaft furnace bustle pipe ratio.Simultaneously, the obstruction of bustle pipe front end has also aggravated the damaged situation of the anti-material in bustle pipe place.
Summary of the invention
The purpose of this utility model is to design a kind of shaft furnace bustle pipe blockage structure that prevents, increases the shaft furnace bustle pipe purging system, prevents that bustle pipe from stopping up; Improve the gas permeability of bustle pipe front end furnace charge stock column, make reducing gas blow to as far as possible the shaft furnace center, it is more reasonable that Gas Flow is distributed, and furnace charge is reduced more fully, improves the furnace charge degree of metalization, improves gas utilization rate; Improve operating rate, guarantee the stable smooth operation of producing; Reduce coke ratio, fuel ratio that melting gasification furnace uses, reduce molten iron cost.
For achieving the above object, the technical solution of the utility model is:
A kind of shaft furnace bustle pipe blockage structure that prevents, it is characterized in that, above the bustle pipe of the shaft furnace outside, a shaft furnace bustle pipe blowing mechanism is set, comprise endless tube and some purging arms that is communicated with endless tube, each purges arm and inserts in the bustle pipe, and it exports the reducing gas exit of corresponding bustle pipe inboard; Purge on the arm and establish control valve.
Further, the control valve on the described purging arm is ball valve.
The utility model regularly purges bustle pipe by purging arm, prevents that bustle pipe from stopping up, and the Powdered furnace charge of bustle pipe front end is blown away, and makes bustle pipe and bustle pipe front end steam stove unobstructed.
The beneficial effects of the utility model are:
The utility model can prevent the shaft furnace bustle pipe blockage phenomenon, dust in the establishment coal gas is in the deposition of bustle pipe front end, the reasonably optimizing that shaft furnace inside Gas Flow is distributed has great role, reduce the generation that the shaft furnace bustle pipe place produces caking, make reducing gas enter the shaft furnace center from shaft furnace bustle pipe, improve gas utilization rate, improve shaft furnace DRI degree of metalization, reduce the coke ratio, the fuel ratio that use in the melting gasification furnace.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the partial sectional view of the utility model embodiment.
The specific embodiment
Referring to Fig. 1, Fig. 2, the shaft furnace bustle pipe blockage structure that prevents of the present utility model, above shaft furnace 10 outside bustle pipes 20, a shaft furnace bustle pipe blowing mechanism is set, comprise endless tube 1 and some purging arms 2 that is communicated with endless tube 1, each purges arm and inserts in the bustle pipe 20, and it exports the reducing gas outlet 201 of corresponding bustle pipe 20 inboards; Purge on the arm 2 and establish control valve 3.
The utility model regularly purges bustle pipe 20 by purging arm 2, and the Powdered furnace charge 30 of bustle pipe 20 front ends is blown away, and prevents that bustle pipe from stopping up, and makes bustle pipe and bustle pipe front end steam stove unobstructed.
The utility model prevents that by increasing the shaft furnace bustle pipe purging system bustle pipe from stopping up; Simultaneously, improve the gas permeability of bustle pipe front end furnace charge stock column, make reducing gas blow to as far as possible the shaft furnace center, it is more reasonable that Gas Flow is distributed, and furnace charge is reduced more fully, improves the furnace charge degree of metalization, improves gas utilization rate; Improve operating rate, guarantee the stable smooth operation of producing; Reduce coke ratio, fuel ratio that melting gasification furnace uses, reduce molten iron cost.
Claims (2)
1. one kind prevents the shaft furnace bustle pipe blockage structure, it is characterized in that, above the bustle pipe of the shaft furnace outside, a shaft furnace bustle pipe blowing mechanism is set, comprise endless tube and some purging arms that is communicated with endless tube, each purges arm and inserts in the bustle pipe, and it exports the reducing gas exit of corresponding bustle pipe inboard; Purge on the arm and establish control valve.
2. the shaft furnace bustle pipe blockage structure that prevents as claimed in claim 1 is characterized in that, the control valve on the described purging arm is ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220245904 CN202648373U (en) | 2012-05-29 | 2012-05-29 | Anti-jam structure for shaft furnace bustle pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220245904 CN202648373U (en) | 2012-05-29 | 2012-05-29 | Anti-jam structure for shaft furnace bustle pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202648373U true CN202648373U (en) | 2013-01-02 |
Family
ID=47417470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220245904 Expired - Fee Related CN202648373U (en) | 2012-05-29 | 2012-05-29 | Anti-jam structure for shaft furnace bustle pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202648373U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106755693A (en) * | 2017-03-09 | 2017-05-31 | 江苏省冶金设计院有限公司 | Hot charging gas-based shaft kiln system and method |
| CN111410997A (en) * | 2019-01-05 | 2020-07-14 | 新疆八一钢铁股份有限公司 | Ou ye coal gas pipeline blockage cleaning device |
| CN114593593A (en) * | 2022-03-21 | 2022-06-07 | 河南郑矿机器有限公司 | Feeding sealing and anti-blocking device and method for rotary equipment |
-
2012
- 2012-05-29 CN CN 201220245904 patent/CN202648373U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106755693A (en) * | 2017-03-09 | 2017-05-31 | 江苏省冶金设计院有限公司 | Hot charging gas-based shaft kiln system and method |
| CN111410997A (en) * | 2019-01-05 | 2020-07-14 | 新疆八一钢铁股份有限公司 | Ou ye coal gas pipeline blockage cleaning device |
| CN114593593A (en) * | 2022-03-21 | 2022-06-07 | 河南郑矿机器有限公司 | Feeding sealing and anti-blocking device and method for rotary equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAOGANG GROUP CO., LTD. Free format text: FORMER OWNER: BAOSHAN IRON + STEEL CO., LTD. Effective date: 20130105 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201900 BAOSHAN, SHANGHAI TO: 200122 PUDONG NEW AREA, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130105 Address after: 200122 No. 370 Pu circuit, Shanghai, Pudong New Area Patentee after: Baosteel Group Corporation Address before: 201900 Fujin Road, Shanghai, No. 885, No. Patentee before: Baoshan Iron & Steel Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20210529 |