CN104449846A - Preparation and conveying method and preparation and conveying device of pulverized coal - Google Patents
Preparation and conveying method and preparation and conveying device of pulverized coal Download PDFInfo
- Publication number
- CN104449846A CN104449846A CN201410741541.XA CN201410741541A CN104449846A CN 104449846 A CN104449846 A CN 104449846A CN 201410741541 A CN201410741541 A CN 201410741541A CN 104449846 A CN104449846 A CN 104449846A
- Authority
- CN
- China
- Prior art keywords
- coal
- pulverized coal
- coal dust
- preparation
- conveying
- Prior art date
- 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.)
- Pending
Links
- 239000003245 coal Substances 0.000 title claims abstract description 79
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000012535 impurity Substances 0.000 claims abstract description 9
- 238000010298 pulverizing process Methods 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims abstract description 6
- 230000009977 dual effect Effects 0.000 claims abstract description 5
- 230000005484 gravity Effects 0.000 claims abstract description 5
- 239000002817 coal dust Substances 0.000 claims description 65
- 239000000843 powder Substances 0.000 claims description 33
- 239000000567 combustion gas Substances 0.000 claims description 17
- 239000000446 fuel Substances 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 7
- 230000004913 activation Effects 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000003915 liquefied petroleum gas Substances 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract description 2
- 239000002737 fuel gas Substances 0.000 abstract description 2
- 230000001351 cycling effect Effects 0.000 abstract 2
- 239000003517 fume Substances 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000010926 purge Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004087 circulation Effects 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0956—Air or oxygen enriched air
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses a preparation and conveying method and a preparation and conveying device of pulverized coal. The method comprises the steps of pulverized coal preparation and pulverized coal conveying; the negative-pressure pulverization technology is adopted for preparing the pulverized coal, pulverized coal leakage can be effectively prevented, the explosive-proof grade of the device can be lowered and the investment can be reduced; a fume furnace provides hot air for drying and conveying the pulverized coal in a coal pulverizer, fuel gas in the fume furnace can release heat through liquefied petroleum gas or purge gas in the system, and the energy consumption cost can be reduced; fiber impurities contained in the pulverized coal collected by a pulverized coal collecting device can be removed by a fiber separator or a vibrating screen, and then the pulverized coal enters a pulverized coal storage cabin, the pulverized coal under normal pressure in the pulverized coal storage cabin can enter a pulverized coal charging tank under the dual actions of gravity and activated gas after passing through two or three pressure charging and releasing cycling lock hopper vessels, a certain pressure difference exists between the pulverized coal charging tank and a gasifier, and the flow rate of the pulverized coal can be controlled by a regulating valve; the impurities in the pulverized coal can be removed in a conveying process, and besides, multiple pressure charging and releasing cycling lock hopper vessels can ensure stable discharging; and the design is exquisite, the cost is low and the using effect is good.
Description
Technical field
The present invention relates to chemical field, especially a kind of preparation of coal dust and carrying method and device.
Background technology
Pulverized coal gasification furnace uses raw material to be coal dust, and combustion reactions and coal dust conveying all have strict demand to the granularity, water-content etc. of coal dust.Existing coal dust is produced can produce higher pressure usually, and therefore, for meeting gasification reaction needs, usual device anti-hazard classification requires higher, and the cost of investment of equipment is also larger, and existing production technology energy consumption is also higher.Coal dust is after production completes, and its impurity is many, and transport neither be very convenient.
Summary of the invention
The object of the invention is: provide a kind of preparation of coal dust and carrying method and device, its production safety is reliable, and equipment cost is low, effectively can remove the impurity in coal dust, and conveying good stability, to overcome the deficiencies in the prior art.
The present invention is achieved in that preparation and the carrying method of coal dust, comprises the preparation of coal dust and the conveying of fine coal, and the preparation of coal dust is, after feed coal being sent into raw material coal bunker, coal to be fed fuel dropping pipe through feeder and enters coal pulverizer and be polished by the coal in raw material coal bunker; Warm air is provided to enter in coal pulverizer in combustion gas furnace, the coal dust that fineness is qualified rises with warm air, being entered by transfer lime receives in powder device, after the fine coal that warm air is brought into by receipts powder device is collected, one branch's warm air is sent back in rear combustion gas furnace by induced draft fan and circulates, another warm air is exported emptying by induced draft fan; The conveying of coal dust is, to the coal dust of powder device collection be received by sending into coal dust bunker after the fiber impurity in separating screen device removing coal dust, normal pressure pulverized coal in coal dust bunker is entered powder coal charge tank after lock hopper container under gravity and activation gas dual function, and coal dust is sent in vapourizing furnace by powder coal charge tank.
The preparation of coal dust and the device of carrying method, be divided into fuel pulverizing plant and pulverized coal conveying device, fuel pulverizing plant comprises combustion gas furnace, the output terminal of combustion gas furnace is communicated with the bottom of coal pulverizer by pipeline, the top of coal pulverizer is connected with receipts powder device by pipeline, and the air vout end receiving powder device connects drain and combustion gas furnace respectively by the pipeline with induced draft fan; Pulverized coal conveying device comprises the separating screen device be connected with the powder outlet end receiving powder device, is provided with coal dust bunker, is connected with coal dust lock hopper container in the bottom of coal dust bunker, be connected with powder coal charge tank in the bottom of coal dust lock hopper container in the below of separating screen device.
Described separating screen device is Celloco fractionator Celloco or vibratory screening apparatus.
Described coal dust lock hopper container is two or more.
Owing to have employed technique scheme, compared with prior art, pulverized coal preparation of the present invention adopts negative pressure powder-making technique, effectively can prevent leakage of pulverized coal, reduces device anti-hazard classification, reduces investment; Combustion gas furnace provides the drying of warm air for coal dust in coal pulverizer and conveying, and combustion gas furnace fuel gas can use liquefied petroleum gas (LPG) or system periodic off-gases to produce heat, reduces energy consumption cost; Coal dust bunker is entered after the coal dust that coal powder collection device is collected removes by Celloco fractionator Celloco or vibratory screening apparatus the fiber impurity contained in coal dust, again normal pressure pulverized coal in coal dust bunker is entered powder coal charge tank after the coal dust lock hopper container of pressure release is filled in two or three circulations under gravity and activation gas dual function, powder coal charge tank and vapourizing furnace keep certain pressure reduction, by governor valve control pulverized coal flow.Not only eliminate the impurity in coal dust in course of conveying, and the lock hopper container that pressure release is filled in multiple circulation can ensure the stable of blanking.Deft design of the present invention, with low cost, result of use is good.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of fuel pulverizing plant of the present invention;
Accompanying drawing 2 is the structural representation of pulverized coal conveying device of the present invention.
Embodiment
Embodiments of the invention: the preparation of coal dust and carrying method, comprise the preparation of coal dust and the conveying of fine coal, and the preparation of coal dust is, after feed coal being sent into raw material coal bunker, coal to be fed fuel dropping pipe through feeder and enters coal pulverizer 3 and be polished by the coal in raw material coal bunker; Warm air is provided to enter in coal pulverizer 3 in combustion gas furnace 2, the coal dust that fineness is qualified rises with warm air, entered by transfer lime 1 and receive the cloth bag collection machine that powder device 4(can adopt routine) in, after the fine coal that warm air is brought into by receipts powder device 4 is collected, one branch's warm air is sent back in rear combustion gas furnace 2 by induced draft fan 6 and circulates, another warm air is exported emptying by induced draft fan 6; The conveying of coal dust is, the coal dust collected by receipts powder device 4 sends into coal dust bunker 8 removed the fiber impurity in coal dust by separating screen device 7 after, normal pressure pulverized coal in coal dust bunker 8 is entered powder coal charge tank 10 after lock hopper container 9 under gravity and activation gas dual function, and coal dust is sent in vapourizing furnace 11 by powder coal charge tank 10.
The preparation of coal dust and the device of carrying method, be divided into fuel pulverizing plant and pulverized coal conveying device, fuel pulverizing plant comprises combustion gas furnace 2, the output terminal of combustion gas furnace 2 is communicated with the bottom of coal pulverizer 3 by pipeline 1, the top of coal pulverizer 3 is connected with receipts powder device 4 by pipeline 1, and the air vout end receiving powder device 4 connects drain 5 and combustion gas furnace 2 respectively by the pipeline 1 with induced draft fan 6; Pulverized coal conveying device comprises the separating screen device 7 be connected with the powder outlet end receiving powder device 4, coal dust bunker 8 is provided with in the below of separating screen device 7, be connected with three coal dust lock hoppers 9 in the bottom of coal dust bunker 8, be connected with powder coal charge tank 10 in the bottom of coal dust lock hopper 9; Described separating screen device 7 is Celloco fractionator Celloco or vibratory screening apparatus.
Claims (4)
1. the preparation of coal dust and a carrying method, comprise the preparation of coal dust and the conveying of fine coal, it is characterized in that: the preparation of coal dust is, after feed coal being sent into raw material coal bunker, coal to be fed fuel dropping pipe through feeder and enters coal pulverizer and be polished by the coal in raw material coal bunker; Warm air is provided to enter in coal pulverizer in combustion gas furnace, the coal dust that fineness is qualified rises with warm air, being entered by transfer lime receives in powder device, after the fine coal that warm air is brought into by receipts powder device is collected, one branch's warm air is sent back in rear combustion gas furnace by induced draft fan and circulates, another warm air is exported emptying by induced draft fan; The conveying of coal dust is, to the coal dust of powder device collection be received by sending into coal dust bunker after the fiber impurity in separating screen device removing coal dust, normal pressure pulverized coal in coal dust bunker is entered powder coal charge tank after lock hopper container under gravity and activation gas dual function, and coal dust is sent in vapourizing furnace by powder coal charge tank.
2. one kind adopts the preparation of coal dust as claimed in claim 1 and the device of carrying method, be divided into fuel pulverizing plant and pulverized coal conveying device, it is characterized in that: fuel pulverizing plant comprises combustion gas furnace (2), it is characterized in that: the output terminal of combustion gas furnace (2) is communicated with the bottom of coal pulverizer (3) by pipeline (1), the top of coal pulverizer (3) is connected with receipts powder device (4) by pipeline (1), and the air vout end receiving powder device (4) connects drain (5) and combustion gas furnace (2) respectively by the pipeline (1) with induced draft fan (6); Pulverized coal conveying device comprises the separating screen device (7) be connected with the powder outlet end receiving powder device (4), coal dust bunker (8) is provided with in the below of separating screen device (7), be connected with coal dust lock hopper container (9) in the bottom of coal dust bunker (8), be connected with powder coal charge tank (10) in the bottom of coal dust lock hopper container (9).
3. the preparation of coal dust according to claim 2 and e Foerderanlage, is characterized in that: described separating screen device (7) is Celloco fractionator Celloco or vibratory screening apparatus.
4. the preparation of coal dust according to claim 2 and e Foerderanlage, is characterized in that: described coal dust lock hopper container (9) is two or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410741541.XA CN104449846A (en) | 2014-12-09 | 2014-12-09 | Preparation and conveying method and preparation and conveying device of pulverized coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410741541.XA CN104449846A (en) | 2014-12-09 | 2014-12-09 | Preparation and conveying method and preparation and conveying device of pulverized coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104449846A true CN104449846A (en) | 2015-03-25 |
Family
ID=52896609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410741541.XA Pending CN104449846A (en) | 2014-12-09 | 2014-12-09 | Preparation and conveying method and preparation and conveying device of pulverized coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104449846A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107954218A (en) * | 2017-12-13 | 2018-04-24 | 航天长征化学工程股份有限公司 | Coal grinding and pulverized coal conveying system |
| CN109652142A (en) * | 2019-01-22 | 2019-04-19 | 安徽昊源化工集团有限公司 | A kind of control method for powdered coal pressure and transferring program for powdered coal gasification |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037620A (en) * | 2007-04-27 | 2007-09-19 | 兖矿鲁南化肥厂 | Coal spraying nozzle for coal gasification device and combustion device |
| CN101294765A (en) * | 2008-06-05 | 2008-10-29 | 神华集团有限责任公司 | Low rank coal high temperature flue gas drying method and device |
| CN101939264A (en) * | 2007-11-09 | 2011-01-05 | 芬欧汇川集团 | Waste water treatment from a biomass-to-liquid process comprising synthesis gas production and integrated factory facility |
| CN102140371A (en) * | 2010-12-11 | 2011-08-03 | 水煤浆气化及煤化工国家工程研究中心 | Pulverized coal gasification device capable of measuring feeding quantity and performing on-line calibration of solid mass flow meter and on-line calibration method thereof |
| CN102352268A (en) * | 2011-09-08 | 2012-02-15 | 西北化工研究院 | Method for producing synthesis gas by using coal powder as raw material |
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-
2014
- 2014-12-09 CN CN201410741541.XA patent/CN104449846A/en active Pending
Patent Citations (8)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107954218A (en) * | 2017-12-13 | 2018-04-24 | 航天长征化学工程股份有限公司 | Coal grinding and pulverized coal conveying system |
| CN109652142A (en) * | 2019-01-22 | 2019-04-19 | 安徽昊源化工集团有限公司 | A kind of control method for powdered coal pressure and transferring program for powdered coal gasification |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160308 Address after: 273500 Shandong city of Jining province Fushan Road No. 298 Applicant after: YANKUANG GROUP Co.,Ltd. Address before: Guizhou province Guiyang City Kaiyang County 550306 Yong Wen Xiang Huang Bai wells Applicant before: GUIZHOU KAIYANG CHEMICAL Co.,Ltd. |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |
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| RJ01 | Rejection of invention patent application after publication |