CN202599078U - Device for adjusting coal gas in shaft furnace - Google Patents
Device for adjusting coal gas in shaft furnace Download PDFInfo
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- CN202599078U CN202599078U CN 201220181401 CN201220181401U CN202599078U CN 202599078 U CN202599078 U CN 202599078U CN 201220181401 CN201220181401 CN 201220181401 CN 201220181401 U CN201220181401 U CN 201220181401U CN 202599078 U CN202599078 U CN 202599078U
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- coal gas
- pipeline
- shaft furnace
- furnace
- adjusting device
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Abstract
The utility model discloses a device for adjusting coal gas in a shaft furnace. The device comprises at least one pipeline and sealing plates, wherein at least one pipeline penetrates through a peripheral pipe of the shaft furnace; a channel is formed on an annular wall in the peripheral pipe below the pipelines; and the sealing plates are arranged in walls, which are positioned at the head and tail ends of the pipeline, of the shaft furnace to seal part of the channel and form an opening through which coal gas can enter a center position in the furnace along the channel below the pipelines. By the device, a great deal of coal gas can arrive at the center position of the furnace, so that distribution of dust and coal gas flow on a cross section is improved, the coal gas utilization rate and the metallization rate are high, the furnace charge pressure difference is reduced, the stability of operation of the furnace is greatly improved, the adaptability of the furnace is improved, the probability of abnormal states of the pipeline and the like is reduced, and the yield is improved.
Description
Technical field
The utility model relates to metallurgical equipment, particularly a kind of shaft furnace coal gas adjusting device.
Background technology
Along with resource consumption, contradiction that coke is in short supply become increasingly conspicuous, a great problem that metallurgy industry faces is exactly constantly rising violently of cost of material, like iron ore, continues in recent years to sharp rise, and reduces pig iron cost and seems particularly urgent.In the smelting iron and steel, how improving gas utilization rate, reduce coke ratio and coal ratio, is the most important thing thereby reduce supplies consumption.
In order to produce high-end product, low silicon smelting becomes trend of the times, and reducing the siliceous necessary condition of the pig iron is to guarantee that sufficient slag iron physics heat is to satisfy the needs of desulfurization.If long-term underheat average siliceously is lower than reasonable lower limit, slag iron physics heat is not enough, can cause the cupola well situation to worsen even coal gas runs off normal.Though low coke ratio, high gas utilization rate and high coke ratio, low gas utilization rate all can obtain dry iron, clearly the former is our needs.From falling the burnt angle of silicon joint, it is dual improving the gas utilization rate effect, in the time of high and stable yields, keeps high gas utilization rate very necessary.
Reasonably the coal gas distributions helps to obtain low stock column pressure reduction, high gas unit consumption and high gas utilization rate, thereby obtains high degree of metalization.Part coal gas flows through in development and forms high-temperature region, pipeline etc. easily, and reasonably the coal gas distributions can reduce the high-temperature region, the risk of the working of a furnaces such as reduction bonds, pipeline.
Traditional measures such as high wind speed, high blast energy, high wind-warm syndrome, high oxygen enrichment, high roof pressure have progressively solved and have inscribed between furnace condition anterograde, have kept higher gas utilization rate, but still have many conflicts, are the unity of opposites like High Pressure Difference and gas utilization rate.Do not have gas utilization rate without pressure reduction, keep high gas utilization rate to need certain pressure reduction.But the rising of pressure reduction will threaten the stable smooth operation of the working of a furnace.In case raw material changes greatly, will cause coal gas stream unstable, generation pipeline, the material etc. that collapses cause the decline of gas utilization rate, thereby have increased the weight of the dependence to raw material.The high-temperature behavior of the raising of coke quality, particularly coke (CRI, CSR) is laid a good foundation for improving gas utilization rate.But the cost of coke is high, and coking brings serious environmental pollution.
In existing regulating measure, measures such as air port air blast, logical oxygen cause the edge air-flow strong, a little less than the center; In order to suppress the edge, distribution devices such as cloth plate washer, distributing device have been invented in the centre of development; They control cloth radius, fabric thickness or cloth point above the stove charge level, thereby regulate the coal gas distributions, improve gas utilization rate; But the adjusting yardstick of edge coal gas stream is difficult to control, and is careless slightly, is easy to change into the edge and crosses Sheng even edge pipeline.Under the cloth mode contexts such as cloth plate washer,, penetrate and carry out according to original trend basically in the process,, arrive the charge level top, form top coal gas output up to penetrating charge level in case bottom coal gas distribution pattern forms.
Summary of the invention
The purpose of the utility model is to provide a kind of shaft furnace coal gas adjusting device, makes coal gas more arrive the stove center more, thereby improves dust and coal gas distributions on the cross section; Obtain high gas utilization rate and high degree of metalization; Reduce furnace charge pressure reduction simultaneously, improve the stability of furnace maneuver greatly, improve stove adaptability; The occurrence probability of abnormal conditions such as minimizing pipeline improves output.
For achieving the above object, the technical scheme of the utility model is:
A kind of shaft furnace coal gas adjusting device, it comprises, and at least one pipeline runs through the setting of shaft furnace bustle pipe, and pipeline below bustle pipe internal ring wall forms a passage; Closure plate, its be arranged at said pipeline end to end two ends vertical furnace within the walls, seal the part of above-mentioned passage, formation can make coal gas get into the opening of center in the stove along square channel under the pipeline.
Further, described pipeline is a three-decker, comprises internal lining pipe, outer tube and baffle.
Be provided with ceramic fiber blanket between described outer tube and the baffle.
Described pipeline is triangular form or platypelloid type hollow-core construction.
In addition, establish water cooled pipeline in the described pipeline.
After the utility model is installed; Form the nature angle of rest (repose) owing to add furnace charge, the pipeline below forms a triangular duct naturally, and coal gas is after gas inlet gets into bustle pipe; Part coal gas is through getting in the stove after the bustle pipe air inlet of under shed penetrates furnace wall around the edge; Part coal gas arrives the stove center through the triangular duct that the coal gas adjusting device forms, thereby improves dust and coal gas distributions on the cross section, obtains high gas utilization rate and high degree of metalization; Reduce furnace charge pressure reduction simultaneously, improve the stability of furnace maneuver greatly, improve stove adaptability, the occurrence probability of abnormal conditions such as minimizing pipeline improves output.
The beneficial effect of the utility model:
1. improve dust and coal gas distribution on the cross section in the stove.
2. improve gas utilization rate and degree of metalization.
3. reduce furnace charge pressure reduction, improve the stability of furnace maneuver greatly, improve stove adaptability.
4. reduce the occurrence probability of abnormal condition such as pipeline, improve output.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the A-A cross-sectional schematic of Fig. 1.
Fig. 3 is the B-B cross-sectional schematic of Fig. 1.
Fig. 4 is the structural representation of pipeline among the utility model embodiment.
The specific embodiment
Referring to Fig. 1～Fig. 4, a kind of shaft furnace coal gas adjusting device of the utility model, it comprises, and two pipelines 1,2 run through shaft furnace 10 bustle pipes 20 and are provided with, and pipeline below bustle pipe 20 internal ring walls form a passage; Closure plate 3; It is arranged at said pipeline 1, and (with pipeline 1 is example; Down with) end to end in the furnace wall at two ends, formation can make coal gas get into the opening 201 of center in the stove along 1 time square channel of pipeline, through regulating closure plate 3; Can regulate the size of opening 201, thereby regulate the coal gas amount that three corner channels get into the stove center along pipeline 1 below.
Described pipeline 1 is a three-decker, comprises internal lining pipe 11, outer tube 12 and baffle 13.
Be provided with ceramic fiber blanket between described outer tube and the baffle.
Described pipeline 1 is triangular form or platypelloid type hollow-core construction.Establish water cooled pipeline 4 in the described pipeline 1.
Coal gas is after gas inlet 30 gets into bustle pipe 20; Part coal gas is through getting in the stove after bustle pipe 20 air inlets 202 of under shed penetrate furnace wall around the edge; The passage that part coal gas forms through pipeline 1,2 belows naturally arrives the stove center; Thereby improve dust and coal gas distributions on the cross section, obtain high gas utilization rate and high degree of metalization; Reduce furnace charge pressure reduction simultaneously, improve the stability of furnace maneuver greatly, improve stove adaptability, the occurrence probability of abnormal conditions such as minimizing pipeline improves output.
The utility model coal gas adjusting device is used in the middle of furnace charge, improves coal gas and distributes, and improves gas utilization rate, is suitable for blast furnace technology, smelting reduction process or other metallurgy industry and produces qualified molten iron.
Claims (6)
1. a shaft furnace coal gas adjusting device is characterized in that, comprise,
At least one pipeline runs through the setting of shaft furnace bustle pipe, and pipeline below bustle pipe internal ring wall forms a passage;
Closure plate, its be arranged at said pipeline end to end two ends vertical furnace within the walls, seal the part of above-mentioned passage, formation can make coal gas get into the opening of center in the stove along square channel under the pipeline.
2. shaft furnace coal gas adjusting device as claimed in claim 1 is characterized in that described pipeline is a three-decker, comprises internal lining pipe, outer tube and baffle.
3. shaft furnace coal gas adjusting device as claimed in claim 2 is characterized in that, is provided with ceramic fiber blanket between described outer tube and the baffle.
4. according to claim 1 or claim 2 shaft furnace coal gas adjusting device is characterized in that described pipeline is triangular form or platypelloid type hollow-core construction.
5. according to claim 1 or claim 2 shaft furnace coal gas adjusting device is characterized in that, establishes water cooled pipeline in the described pipeline.
6. shaft furnace coal gas adjusting device as claimed in claim 4 is characterized in that, establishes water cooled pipeline in the described pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220181401 CN202599078U (en) | 2012-04-25 | 2012-04-25 | Device for adjusting coal gas in shaft furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220181401 CN202599078U (en) | 2012-04-25 | 2012-04-25 | Device for adjusting coal gas in shaft furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202599078U true CN202599078U (en) | 2012-12-12 |
Family
ID=47316608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220181401 Expired - Fee Related CN202599078U (en) | 2012-04-25 | 2012-04-25 | Device for adjusting coal gas in shaft furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202599078U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115679028A (en) * | 2022-09-16 | 2023-02-03 | 新疆八一钢铁股份有限公司 | Low-silicon smelting method for Ou metallurgical furnace |
-
2012
- 2012-04-25 CN CN 201220181401 patent/CN202599078U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115679028A (en) * | 2022-09-16 | 2023-02-03 | 新疆八一钢铁股份有限公司 | Low-silicon smelting method for Ou metallurgical furnace |
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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: 20121231 |
|
| 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: 20121231 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 |
Granted publication date: 20121212 Termination date: 20210425 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |