CN203065494U - Blast furnace dust injection utilizing device - Google Patents
Blast furnace dust injection utilizing device Download PDFInfo
- Publication number
- CN203065494U CN203065494U CN2013200140864U CN201320014086U CN203065494U CN 203065494 U CN203065494 U CN 203065494U CN 2013200140864 U CN2013200140864 U CN 2013200140864U CN 201320014086 U CN201320014086 U CN 201320014086U CN 203065494 U CN203065494 U CN 203065494U
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- Prior art keywords
- winding
- blast furnace
- injection
- coal
- blast
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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Abstract
The utility model relates to a blast furnace dust injection utilizing device. Dust collected by a gravity deduster or a cyclone dust collector is conveyed to a coal powder injection pipeline by way of pressurized injection and enters into a blast-furnace crucible to combust with blast furnace coal injection from a blast furnace tuyere. The blast furnace dust injection utilizing device is adopted. A control valve is arranged on a discharge pipeline between an ash bucket and an injection tank. In a blast furnace coal injection system, a coal injection device is communicated with a blast furnace coal distributor through a blast furnace coal injection header pipe. The blast furnace coal distributor is communicated with a blast furnace blowing-in tuyere through a coal injection branch pipe. A dust injection pipeline is arranged at the outlet end of the injection tank. The injection tank is connected to the blast furnace coal injection header pipe through the dust injection pipeline, and the access point is in front of the inlet of the coal distributor of the blast furnace coal injection system. The utilizing process flow of blast furnace dust is greatly simplified, and dust rise and consumption in the transfer process of dust are avoided, so that the device is beneficial for environmental protection and energy conservation and consumption reduction.
Description
Technical field
The utility model belongs to blast furnace byproduct recovery technology field, is specifically related to a kind ofly blast furnace dust winding-up is entered blast furnace carry out re-use device.
Background technology
Blast furnace dust has been used various ways as the blast furnace ironmaking byproduct and has recycled, as directly sending sintering plant as the raw materials for sintering batching, carry out separation and concentration and obtain the smart powder of ferrous grade high ferro with powdered carbon, gas ash is blown into recovery forms such as blast furnace with the raw coal mixing after grinding into powder through flotation-gravity treatment sorting process.In the above-mentioned technology, gas ash all needs frequent transhipment, transhipment and complete processing complexity, and gas ash loss and dust phenomenon are more serious in the transport process, and contaminate environment increases the processing energy consumption.
The utility model content
The technical problems to be solved in the utility model is: at complex process, contaminate environment and the serious problem of loss in the gas ash recycling process in the prior art, a kind of blast furnace dust winding-up use device is provided, can simplify blast furnace dust energetically and utilize technical process, avoid gas ash transport process dust, reduce the consumption of gas ash transport process, thereby be conducive to environmental protection and energy-saving and cost-reducing.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
Blast furnace dust winding-up use device, it is characterized in that: mainly comprise gas ash injection system, blast-furnace coal powder injection system, the gas ash injection system mainly comprises the winding-up jar of gas ash ash bucket and below; On the discharge pipe between ash ash bucket and winding-up jar control valve is set; In the blast-furnace coal powder injection system, coal powder blowing device is communicated with the blast-furnace coal powder divider by the pulverized coal injection house steward; The blast-furnace coal powder divider is communicated with blast furnace air-supply air port by coal jetting branch; A winding-up jar exit end arranges gas ash winding-up pipeline; The winding-up jar inserts on the pulverized coal injection house steward by gas ash winding-up pipeline, and access point is before the pulverized coal distributor entrance of blast-furnace coal powder injection system.
By technique scheme, gas ash ash bucket below arranges two winding-up jars arranged side by side, between gas ash ash bucket and each winding-up jar an independently discharge pipe is set respectively, and described control valve is set respectively on each discharge pipe; Each winding-up jar exit end arranges gas ash winding-up pipeline respectively; Each gas ash winding-up pipeline inserts on the pulverized coal injection house steward.
By technique scheme, described control valve comprises manual valve, trip valve, star-like unloading valve, feed valve from top to bottom.
By technique scheme, at the winding-up jar LOAD CELLS is set.
Gas ash enters the winding-up jar through discharge channel, enter among the pulverized coal injection house steward by gas ash winding-up pipeline through winding-up jar winding-up back, and together enter in the blast-furnace coal powder divider with coal dust, enter blast furnace air-supply air port through coal jetting branch then, finally enter blast furnace and burn.
The entrance end of winding-up jar stops blast furnace gas to enter in the winding-up jar by star-like unloading valve; Because the micro-blast furnace gas that exists in the gas ash gap may enter in the tank body, for safety, adopt nitrogen to carry out the gas ash winding-up, thereby gas ash is sent.
Manual valve, trip valve all are to stop discharging under the emergency state or maintenance state.The inlet that feed valve control gas ash enters the winding-up jar.
Below gravitational precipitator or tornado dust collector ash bucket, blowing device is installed, is utilized gravity dumping, economic environmental protection; Adopt nitrogen that gas ash is sent simultaneously, safe and reliable.
Adopt said apparatus, the gas ash that gravitational precipitator or tornado dust collector are collected is transported in the coal spraying pipeline by the pressurization injection method, enters the blast furnace hearth burning with pulverized coal injection in blast furnace from blast-furnace tuyere.
With respect to prior art, the utility model provides a kind of novel gas ash use device, utilize gravity to unload ash, and the pipeline of carrying gas ash of will jetting inserts on the coal powder injection house steward, access point is before coal injection system pulverized coal distributor entrance, gas ash with spray into blast furnace after coal dust mixes in coal spraying pipeline, whole process has adopted enclosed dust winding-up delivery technology, simplify blast furnace dust and utilize technical process, avoid gas ash transport process dust, reduce the consumption of gas ash transport process, thereby be conducive to environmental protection and energy-saving and cost-reducing.
Description of drawings
Fig. 1: according to the blast furnace dust winding-up use device structural representation of the utility model enforcement;
Description of reference numerals among each figure: 1, gas ash ash bucket; 2, manual valve; 3, trip valve; 4, star-like unloading valve; 5, feed valve; 6, winding-up jar; 7, LOAD CELLS; 8, gas ash winding-up pipeline; 9, pulverized coal injection house steward; 10, blast-furnace coal powder tripper; 11, coal jetting branch; 12, blast furnace air-supply air port; 13, blast furnace.
Embodiment:
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing 1, but do not limit the utility model.
Blast furnace dust winding-up use device mainly comprises gas ash injection system, blast-furnace coal powder injection system as shown in Figure 1, and the gas ash injection system mainly comprises the winding-up jar 6 of gas ash ash bucket 1 and below; On the discharge pipe that ash ash bucket 1 and winding-up jar are 6 control valve is set, comprises manual valve 2, trip valve 3, star-like unloading valve 4, feed valve 5 from top to bottom; Winding-up jar 6 exit end arrange gas ash winding-up pipeline 8.In the blast-furnace coal powder injection system, coal powder blowing device is communicated with blast-furnace coal powder divider 10 by pulverized coal injection house steward 9; Blast-furnace coal powder divider 10 is communicated with the blast furnace air-supply air port 12 of blast furnace 13 by coal jetting branch 11.
Winding-up jar 6 inserts on the pulverized coal injection house stewards 9 by gas ash winding-up pipeline 8, and access point is before pulverized coal distributor 10 entrances of blast-furnace coal powder injection system; Gas ash with spray in the blast furnace 13 after coal dust mixes in coal spraying pipeline.Adopt said apparatus, the gas ash that gravitational precipitator or tornado dust collector are collected is transported in the coal spraying pipeline by the pressurization injection method, enters the blast furnace hearth burning with pulverized coal injection in blast furnace from blast-furnace tuyere.
Further, for the ease of calculating the blending ratio of gas ash and coal dust, at winding-up jar 6 LOAD CELLS 7 is set, is used for the metering of gas ash winding-up process.
Further, in order to make gas ash winding-up amount guaranteed, and maintain easily, two parallel winding-up passages are set in the gas ash injection system, be that gas ash ash bucket 1 below arranges two winding-up jars 6 arranged side by side, gas ash ash bucket 1 and each 6 in winding-up jar arrange an independently discharge pipe respectively, and control valve is set respectively on each discharge pipe, comprise manual valve 2, trip valve 3, star-like unloading valve 4, feed valve 5 from top to bottom; Each winding-up jar 6 exit end arranges gas ash winding-up pipeline 8 respectively.Each gas ash winding-up pipeline 8 inserts on the pulverized coal injection house steward 9, and access point is before pulverized coal distributor 10 entrances of blast-furnace coal powder injection system; Gas ash with spray in the blast furnace 13 after coal dust mixes in pulverized coal injection house steward 9.
Gas ash enters the winding-up jar through discharge channel, enter among the pulverized coal injection house steward 9 by gas ash winding-up pipeline through winding-up jar 6 winding-up backs, and together enter in the blast-furnace coal powder divider with coal dust, enter blast furnace air-supply air port 12 through coal jetting branch then, finally enter blast furnace 13 and burn.
The entrance end of winding-up jar 6 stops blast furnace gases to enter in the winding-up jar 6 by star-like unloading valve 4; Because the micro-blast furnace gas that exists in the gas ash gap may enter in the tank body, for safety, adopt nitrogen to carry out the gas ash winding-up, thereby gas ash is sent.
Below gravitational precipitator or tornado dust collector ash bucket, blowing device is installed, is utilized gravity dumping, economic environmental protection; Adopt nitrogen that gas ash is sent simultaneously, safe and reliable.
Above disclosed only is preferred embodiment of the present utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalence of doing according to the utility model claim changes, and still belongs to protection domain of the present utility model.
Claims (4)
1. blast furnace dust winding-up use device, it is characterized in that: mainly comprise gas ash injection system, blast-furnace coal powder injection system, the gas ash injection system mainly comprises the winding-up jar of gas ash ash bucket and below; On the discharge pipe between ash ash bucket and winding-up jar control valve is set; In the blast-furnace coal powder injection system, coal powder blowing device is communicated with the blast-furnace coal powder divider by the pulverized coal injection house steward; The blast-furnace coal powder divider is communicated with blast furnace air-supply air port by coal jetting branch; A winding-up jar exit end arranges gas ash winding-up pipeline; The winding-up jar inserts on the pulverized coal injection house steward by gas ash winding-up pipeline, and access point is before the pulverized coal distributor entrance of blast-furnace coal powder injection system.
2. device according to claim 1 is characterized in that: two winding-up jars arranged side by side are set below the gas ash ash bucket, between gas ash ash bucket and each winding-up jar an independently discharge pipe are set respectively, described control valve is set respectively on each discharge pipe; Each winding-up jar exit end arranges gas ash winding-up pipeline respectively; Each gas ash winding-up pipeline inserts on the pulverized coal injection house steward.
3. device according to claim 1 and 2, it is characterized in that: described control valve comprises manual valve, trip valve, star-like unloading valve, feed valve from top to bottom.
4. device according to claim 3 is characterized in that: at the winding-up jar LOAD CELLS is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200140864U CN203065494U (en) | 2013-01-11 | 2013-01-11 | Blast furnace dust injection utilizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200140864U CN203065494U (en) | 2013-01-11 | 2013-01-11 | Blast furnace dust injection utilizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203065494U true CN203065494U (en) | 2013-07-17 |
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ID=48764308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200140864U Expired - Lifetime CN203065494U (en) | 2013-01-11 | 2013-01-11 | Blast furnace dust injection utilizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203065494U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106399609A (en) * | 2016-12-07 | 2017-02-15 | 中冶南方工程技术有限公司 | Process system and method for blast furnace injection sintering mine returning |
| CN116103457A (en) * | 2023-02-07 | 2023-05-12 | 中冶赛迪工程技术股份有限公司 | Stable injection control method of blast furnace coal injection system |
-
2013
- 2013-01-11 CN CN2013200140864U patent/CN203065494U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106399609A (en) * | 2016-12-07 | 2017-02-15 | 中冶南方工程技术有限公司 | Process system and method for blast furnace injection sintering mine returning |
| CN116103457A (en) * | 2023-02-07 | 2023-05-12 | 中冶赛迪工程技术股份有限公司 | Stable injection control method of blast furnace coal injection system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |