CN202570326U - Coal coke powder crushing and screening system - Google Patents
Coal coke powder crushing and screening system Download PDFInfo
- Publication number
- CN202570326U CN202570326U CN 201220017728 CN201220017728U CN202570326U CN 202570326 U CN202570326 U CN 202570326U CN 201220017728 CN201220017728 CN 201220017728 CN 201220017728 U CN201220017728 U CN 201220017728U CN 202570326 U CN202570326 U CN 202570326U
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- Prior art keywords
- coke powder
- sintering
- coal
- particle size
- outlet
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000011335 coal coke Substances 0.000 title abstract description 7
- 238000012216 screening Methods 0.000 title abstract 3
- 238000005245 sintering Methods 0.000 claims abstract description 45
- 239000003245 coal Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000005516 engineering process Methods 0.000 claims description 15
- 230000018044 dehydration Effects 0.000 claims description 11
- 238000006297 dehydration reaction Methods 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 2
- 239000002808 molecular sieve Substances 0.000 claims description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 12
- 238000002485 combustion reaction Methods 0.000 abstract description 11
- 239000000571 coke Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002708 enhancing effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 206010010219 Compulsions Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000004452 microanalysis Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
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Abstract
The utility model discloses a coal coke powder crushing and screening system which is used for a combination of a sintering technique and a blast furnace coal blow technique. The coal coke powder crushing and screening system comprises a crushing device, a dehydrator and a particle size grading device, wherein the outlet of the crushing device is connected with the inlet of the dehydrator; the outlet of the dehydrator is connected with the inlet of the particle size grading device; a small particle size outlet of the particle size grading device is connected with a coal blow port of a blast furnace coal blow system; and a large particle size outlet of the particle size grading device is connected with a sintering device. Large particle size coal coke powder is put into sintered ore production to improve the properties and quality of the sintered ores and improve the productivity, so that the flame velocity of the combustion zone is higher, and the sintering time is shorter, thereby enhancing the productivity of the sintering machine; after the combustion condition is improved and the heat utilization efficiency is enhanced, the coke addition amount is lowered, the sintering yield is enhanced, and the cold strength of the sintered ores is maintained; and when the small particle size coal coke powder is used for the blast furnace coal blow technique, the coal coke powder resources are utilized sufficiently and efficiently.
Description
Technical field
The utility model relates to a kind of coke powder and crushes and screens system, is applied to sintering process and blast furnace and blows in the coal technology process combined system.
Background technology
State compulsion is carried out the policy of energy-saving and emission-reduction, presses for the technology of energy-saving and emission-reduction.Chinese at present metallurgy industry, system before the iron under sintering deposit and blast furnace are produced, its process energy consumption accounts for about 60% of enterprise energy consumption.The coke powder that when producing sintering deposit, uses, granularity will reduce the sintering utilization rate during less than certain numerical value, more influence the sintering deposit metallurgical performance when badly influencing sintering solid fuel consumption.How when improving sinter quality, to reduce the sintering deposit energy consumption, reach the purpose that reduces the blast furnace fuel ratio simultaneously, press for a kind of energy-saving and emission-reduction, the efficient technology of utilizing of coke powder.
In sintering process, find that through optical micro analysis different with most of iron ores, coke powder is not a kind of good granulated material, they are not adhered to breeze material shell and are wrapped fully.Particularly more obvious during deep-bed sintering, it is not enough to show as the heat supply of sinter bed top.The high negative pressure state provides sufficient oxygen amount for the burning of combustion zone solid carbon, and when fuel granularity attenuated, burning velocity was accelerated relatively, thereby made the burning zone attenuation; The amount of liquid phase that produces is not enough, causes the sintering deposit caking rate to reduce, and quantity of return mines increases; Mixed carbon comtent increases, and energy consumption increases, and output reduces.But thinner coke powder particle (＜0.25mm) embedded particle to adhere in the breeze layer; This just limits contacting of gas and coke powder; Compare with big coke powder, this is actually the burning that has stoped little coke powder, therefore; The small-particle coal coke powder is the burning in the combustion zone forward position not, but has prolonged the trailing edge in this district.After combustion zone is widened, can reduce the gas permeability in this district, the decline of sintering air mass flow, negative pressure rising, output are descended.
In order to improve sintering efficient, usually the coke powder of small grain size is separated, but isolated coal dust is not used efficiently.
The utility model content
In order to address the above problem; The utility model provides a kind of coke powder to crush and screen system, is applied to sintering process and blast furnace and blows in the coal technology process combined system, coke powder is carried out granularity divide into groups; The coarsegrain coke powder gets into sintering process; The small grain size coke powder gets into blast furnace and blows coal technology, and the coke powder resource is made full use of, and realizes the technology of energy-saving and emission-reduction.
The technical scheme of the employing of the utility model is: a kind of coke powder crushes and screens system; Being applied to sintering process and blast furnace blows coal technology and combines; Comprise breaker, dehydration dehydrating unit and grading device; The outlet of said breaker is connected with the inlet of said dehydration dehydrating unit; The outlet of said dehydration dehydrating unit is connected with the inlet of said grading device, and the coal mouth that blows that the small grain size outlet and the blast furnace of said grading device blows the coal measures system is connected, and the coarsegrain outlet of said grading device is connected with sintering equipment.The coarsegrain coke powder drops into sintering deposit production, can improve sintering performance and quality, and productivity ratio improves, the combustion zone flame speed is faster, and sintering time is shorter, improves the productivity ratio of sintering machine; Combustion position improves, utilization efficiency of heat energy after improve, coke ratio has just descended, and has improved sintering finished rate simultaneously and has kept the cold strength of sintering deposit, the small grain size coke powder is used for blast furnace and blows coal technology, has utilized the coke powder resource fully efficiently.
Preferably, described breaker is four-roller crusher tool, double-roll crusher, rod-toothed crusher, impact breaker, gyratory crusher, hammer mill or jaw crushing machinery.
Preferably, said grading device is cyclone separator or molecular sieve.
Preferably, said dehydration dehydrating unit is flash dryer or directly-heated type rotary drying equipment.
The beneficial effect of the utility model is: a kind of coke powder crushes and screens system, is applied to sintering process and blast furnace and blows coal technology and combine, and the coarsegrain coke powder is used for sintering system; The small grain size coke powder is used for blast furnace and blows coal; (the coke powder particle diameter can improve sintering performance and quality from 1.35mm～2.5mm) input sintering deposit production to the coarsegrain coke powder, and productivity ratio improves, the combustion zone flame speed is faster; Sintering time is shorter, improves the productivity ratio of sintering machine; Combustion position improves, utilization efficiency of heat energy after improve, coke ratio has just descended, and has improved sintering finished rate simultaneously and has kept the cold strength of sintering deposit, the small grain size coke powder is used for blast furnace and blows coal technology, has utilized the coke powder resource fully efficiently.
Description of drawings
Fig. 1 crushes and screens the sketch map of system for a kind of coke powder that the utility model provided.
The specific embodiment
For technological means and the effect of further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, to the specific embodiment of the utility model specify as after.
Embodiment 1
A kind of coke powder crushes and screens system; Be applied to sintering process and blast furnace and blow coal technology and combine, comprise breaker 1, dehydration dehydrating unit 2 and grading device 3, the outlet of said breaker is connected with the inlet of said dehydration dehydrating unit; The outlet of said dehydration dehydrating unit is connected with the inlet of said grading device; The coal mouth that blows that the small grain size outlet and the blast furnace of said grading device blows coal measures system 4 is connected, and the coarsegrain outlet of said grading device is connected with sintering equipment 5, and the coarsegrain coke powder drops into sintering deposit production; Can improve sintering performance and quality; Productivity ratio improves, the combustion zone flame speed is faster, and sintering time is shorter, improves the productivity ratio of sintering machine; Combustion position improves, utilization efficiency of heat energy after improve, coke ratio has just descended, and has improved sintering finished rate simultaneously and has kept the cold strength of sintering deposit, the small grain size coke powder is used for blast furnace and blows coal technology, has utilized the coke powder resource fully efficiently.
The above only is the preferred embodiment of the utility model, is not the utility model is done any pro forma restriction; Though the utility model discloses as above with preferred embodiment; Yet be not in order to limiting the utility model, anyly be familiar with the professional and technical personnel, in not breaking away from the utility model technical scheme scope; When the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be the content that does not break away from the utility model technical scheme, to any simple modification that above embodiment has done, all still belong in the scope of the utility model technical scheme according to the technical spirit of the utility model.
Claims (4)
1. a coke powder crushes and screens system; Being applied to sintering process and blast furnace blows coal technology and combines; Comprise breaker, dehydration dehydrating unit and grading device; The outlet of said breaker is connected with the inlet of said dehydration dehydrating unit, and the outlet of said dehydration dehydrating unit is connected with the inlet of said grading device, it is characterized in that:
The coal mouth that blows that the small grain size outlet and the blast furnace of said grading device blows the coal measures system is connected, and the coarsegrain outlet of said grading device is connected with sintering equipment.
2. coke powder according to claim 1 crushes and screens system, it is characterized in that described breaker is four-roller crusher tool, double-roll crusher, rod-toothed crusher, impact breaker, gyratory crusher, hammer mill or jaw crushing machinery.
3. coke powder according to claim 1 crushes and screens system, it is characterized in that said grading device is cyclone separator or molecular sieve.
4. coke powder according to claim 1 crushes and screens system, it is characterized in that said dehydration dehydrating unit is flash dryer or directly-heated type rotary drying equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220017728 CN202570326U (en) | 2012-01-16 | 2012-01-16 | Coal coke powder crushing and screening system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220017728 CN202570326U (en) | 2012-01-16 | 2012-01-16 | Coal coke powder crushing and screening system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202570326U true CN202570326U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220017728 Expired - Fee Related CN202570326U (en) | 2012-01-16 | 2012-01-16 | Coal coke powder crushing and screening system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202570326U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090978A (en) * | 2016-06-23 | 2016-11-09 | 山东钢铁股份有限公司 | A kind of method improving solid fuel utilization ratio and the application in the production technology of sintering deposit thereof |
-
2012
- 2012-01-16 CN CN 201220017728 patent/CN202570326U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090978A (en) * | 2016-06-23 | 2016-11-09 | 山东钢铁股份有限公司 | A kind of method improving solid fuel utilization ratio and the application in the production technology of sintering deposit thereof |
| CN106090978B (en) * | 2016-06-23 | 2018-07-31 | 山东钢铁股份有限公司 | A kind of method improving solid fuel utilization rate and its application in sinter production |
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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 |
Free format text: FORMER OWNER: YU YUANHAO ZHANG JIANLIANG FENG GENSHENG Effective date: 20130603 Owner name: QIAO CHUNMING Free format text: FORMER OWNER: YIN TONG Effective date: 20130603 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100041 SHIJINGSHAN, BEIJING TO: 100020 DONGCHENG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130603 Address after: 100020 Beijing City, Dongcheng District Chaoyang Gate South Street No. 229 Patentee after: Qiao Chunming Address before: 100041 Beijing Shijingshan Huang Nanyuan 1-504 Patentee before: Yin Tong Patentee before: Yu Yuanhao Patentee before: Zhang Jianliang Patentee before: Feng Gensheng |
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| ASS | Succession or assignment of patent right |
Owner name: RUNLIAN YIYING (BEIJING) TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: QIAO CHUNMING Effective date: 20140415 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100020 DONGCHENG, BEIJING TO: 100044 XICHENG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140415 Address after: 100044 Beijing city Xicheng District Xizhimen Street No. 18 building 6 unit 1109 (Desheng Park) Patentee after: Run Lian Yi (Beijing) Technology Co., Ltd. Address before: 100020 Beijing City, Dongcheng District Chaoyang Gate South Street No. 229 Patentee before: Qiao Chunming |
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| ASS | Succession or assignment of patent right |
Owner name: QIAO CHUNMING Free format text: FORMER OWNER: RUNLIAN YIYING (BEIJING) TECHNOLOGY CO., LTD. Effective date: 20140820 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100044 XICHENG, BEIJING TO: 102209 CHANGPING, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140820 Address after: 102209 Beijing city small town east of Changping District Blue Village No. 12 Patentee after: Qiao Chunming Address before: 100044 Beijing city Xicheng District Xizhimen Street No. 18 building 6 unit 1109 (Desheng Park) Patentee before: Run Lian Yi (Beijing) Technology Co., Ltd. |
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| 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: 20121205 Termination date: 20170116 |