CN105258481A - Pulverized coal drier - Google Patents
Pulverized coal drier Download PDFInfo
- Publication number
- CN105258481A CN105258481A CN201510782327.3A CN201510782327A CN105258481A CN 105258481 A CN105258481 A CN 105258481A CN 201510782327 A CN201510782327 A CN 201510782327A CN 105258481 A CN105258481 A CN 105258481A
- Authority
- CN
- China
- Prior art keywords
- fine coal
- flue gas
- temperature flue
- bobbin carriage
- pulverized coal
- Prior art date
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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[C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 239000003245 coal Substances 0.000 title claims abstract description 106
- 239000003546 flue gases Substances 0.000 claims abstract description 49
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound 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Abstract
Description
Technical field
The invention belongs to technical field of coal chemical industry, be specifically related to a kind of fine coal drier.
Background technology
To the drying of low order not viscosity fine coal (particle diameter <6mm), mainly contain following three kinds of technology at present:
1, roller drying technology, this technology adopts about 450 DEG C of high-temperature flue gas as drying medium, and with fine coal direct contact heat transfer, actual moving process is explosive and make the destructive distillation of part fine coal, causes operational danger quality that is high and fine coal to reduce.
2, air flow bed technology, coal grain serious wear, high-temperature flue gas is taken a large amount of fine powder out of and is difficult to process, and there is drying system oxygen content and exceed standard, and easily combustion explosion and dust explosion occurs, and operating process exists very large potential safety hazard.
3, tube type drying technology, consumable accessory is many, elevated-temperature seal difficulty, and the more important thing is that the investment cost of equipment is very big, cost performance is low.
Summary of the invention
The object of this invention is to provide a kind of fine coal drier, as the drier of solid granular and powder material, safer, more efficiently.
The technical solution adopted in the present invention is:
Fine coal drier, is characterized in that:
Comprise fine coal charging bobbin carriage, high-temperature flue gas outlet bobbin carriage, fine coal blanking cylindrical shell and high-temperature flue gas import bobbin carriage and fine coal discharging bobbin carriage from top to bottom;
Fine coal feed pipe box top is provided with the fine coal charging mouth of pipe, is provided with fine coal tremie pipe between bottom and fine coal blanking cylindrical shell top; Be provided with fine coal tremie pipe between fine coal blanking cylinder body bottom and fine coal discharge nozzle box top, bottom fine coal discharging bobbin carriage, be provided with the fine coal discharging mouth of pipe;
High-temperature flue gas import bobbin carriage sidewall is provided with high-temperature flue gas air inlet, and high-temperature flue gas inlet tube box top and high-temperature flue gas export between bobbin carriage and be provided with high-temperature flue gas heat exchanger tube; High-temperature flue gas outlet bobbin carriage sidewall is provided with high-temperature flue gas gas outlet.
Fine coal blanking inner barrel is provided with downward-sloping and that length the is different deflection plate that gathers materials.
Fine coal blanking cylindrical shell is provided with mechanical oscillation.
Fine coal blanking inner barrel is provided with central tube from bottom to top, and on central tube tube wall, subsection setup has many places through hole, and central tube top is stretched out from fine coal charging bobbin carriage sidewall through high-temperature flue gas outlet bobbin carriage.
Fine coal blanking inner barrel is provided with downward-sloping and waney gas collection umbrella.
The present invention has the following advantages:
1, safety:
Drying medium is 300 DEG C of flue gases, is strictly separated by two-tube boxboard with fine coal, there will not be and leaks blast; Fine coal and gas do not mix, and eliminate the another factor of dust explosion.
2, quality:
Can not be there is fierce collision friction in fine coal, loss is very little in dry run; Heat air temperature 300 DEG C can not make fine coal destructive distillation, and fine coal quality is ensured further.
3, investment cost:
This equipment belongs to double tube plate heat exchanger structure, few easy workout part, and sealing is reliable, and a cost of investment is one of percentage of equal other equipment of production capacity left and right.
4, reliability:
Heating fully, and can not putty, and effectively prevent material arch formation, 6 heat exchanger tubes are around a fine coal flow channel, and gather materials deflection plate and the not isometrical design of gas collection umbrella, applicable interval, also has mechanical vibrator, more ensure that its operational reliability.
Accompanying drawing explanation
Fig. 1 is structure chart of the present invention.
Fig. 2 is A-A sectional view.
Fig. 3 is B-B sectional view.
Fig. 4 is C-C sectional view.
Fig. 5 is D-D sectional view.
Fig. 6 is E-E sectional view.
In figure, 1-fine coal charging bobbin carriage, 2-steam extracts pipe out, 3-fine coal tremie pipe, 4-high-temperature flue gas outlet bobbin carriage, 5-high-temperature flue gas heat exchanger tube, 6-gathers materials deflection plate, 7-gas collection umbrella, 8-fine coal blanking cylindrical shell, 9-central tube, 10-mechanical oscillation, 11-high-temperature flue gas import bobbin carriage, 12-fine coal discharging bobbin carriage.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention will be described in detail.
A kind of fine coal drier that the present invention relates to, in Coal Chemical Industry operation to the drying of solid granular and powder material.Comprise fine coal charging bobbin carriage 1, high-temperature flue gas outlet bobbin carriage 4, fine coal blanking cylindrical shell 8 and high-temperature flue gas import bobbin carriage 11 and fine coal discharging bobbin carriage 12 from top to bottom.
Fine coal charging bobbin carriage 1 top is provided with the fine coal charging mouth of pipe, is provided with fine coal tremie pipe 3 between bottom and fine coal blanking cylindrical shell 8 top.Be provided with fine coal tremie pipe 3 bottom fine coal blanking cylindrical shell 8 and between fine coal discharging bobbin carriage 12 top, bottom fine coal discharging bobbin carriage 12, be provided with the fine coal discharging mouth of pipe.Fine coal blanking cylindrical shell 8 inside is provided with downward-sloping and that length the is different deflection plate 6 that gathers materials, and downward-sloping and waney gas collection umbrella 7.Fine coal blanking cylindrical shell 8 is also provided with mechanical oscillation 10.
High-temperature flue gas import bobbin carriage 11 sidewall is provided with high-temperature flue gas air inlet, and high-temperature flue gas import bobbin carriage 11 top and high-temperature flue gas export between bobbin carriage 4 and be provided with high-temperature flue gas heat exchanger tube 5; High-temperature flue gas outlet bobbin carriage 4 sidewall is provided with high-temperature flue gas gas outlet.
Fine coal blanking cylindrical shell 8 inside is provided with central tube 9 from bottom to top, and on central tube 9 tube wall, subsection setup has many places through hole, and central tube 9 top is stretched out from fine coal charging bobbin carriage 1 sidewall through high-temperature flue gas outlet bobbin carriage 4.
Carrying out practically process is:
Tube side:
Fine coal joins fine coal charging bobbin carriage 1 from mouth of pipe N1, enters fine coal blanking cylindrical shell 8 by fine coal tremie pipe 3, by the deflection plate 6 that gathers materials with against short-circuit, after high-temperature flue gas heat exchanger tube 5 heats, descending with material, steam overflows, outside gas collection umbrella 7 lower production well extraction equipment.After dry, fine coal is toward fine coal discharging bobbin carriage 12, discharges from the N4 mouth of pipe.
Shell side:
High-temperature flue gas passes into from mouth of pipe N3, and adverse current upwards, in fine coal blanking cylindrical shell 8 after high-temperature flue gas heat exchanger tube 5 heats fine coal, by high-temperature flue gas outlet bobbin carriage 4, is discharged from mouth of pipe N2.
Center extraction pipe:
In fine coal blanking cylindrical shell 8 fine coal be heated after steam overflow, with in the descending process of coal, collected 7 by several waney gas collection umbrella, and by the passage on central tube 9, steam is drawn, a carry over part filters outside, a part centrally descending discharge of pipe 9.
Content of the present invention is not limited to cited by embodiment, and the conversion of those of ordinary skill in the art by reading description of the present invention to any equivalence that technical solution of the present invention is taked, is claim of the present invention and contains.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510782327.3A CN105258481A (en) | 2015-11-16 | 2015-11-16 | Pulverized coal drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510782327.3A CN105258481A (en) | 2015-11-16 | 2015-11-16 | Pulverized coal drier |
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| Publication Number | Publication Date |
|---|---|
| CN105258481A true CN105258481A (en) | 2016-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510782327.3A CN105258481A (en) | 2015-11-16 | 2015-11-16 | Pulverized coal drier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106563389A (en) * | 2016-11-17 | 2017-04-19 | 天津科技大学 | Spray-freezing microchannel dryer |
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| CN101936648A (en) * | 2010-09-26 | 2011-01-05 | 中冶焦耐(大连)工程技术有限公司 | Humidifier for uniformly drying coking coal of different particle diameters by using hot flue gas of coke furnace |
| JP2011226774A (en) * | 2010-04-15 | 2011-11-10 | Coperion Gmbh | Apparatus for cooling or heating discrete materials |
| CN102260559A (en) * | 2011-05-31 | 2011-11-30 | 李柏荣 | High-quality coal product production plant and production system |
| CN203011087U (en) * | 2013-01-09 | 2013-06-19 | 张爱军 | Radiation type drying machine |
| CN203132399U (en) * | 2013-01-31 | 2013-08-14 | 常州朗脉洁净技术有限公司 | Clean tube type heat exchanger with double tube sheets |
| CN205175066U (en) * | 2015-11-16 | 2016-04-20 | 西安航天华威化工生物工程有限公司 | Fine coal desicator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011226774A (en) * | 2010-04-15 | 2011-11-10 | Coperion Gmbh | Apparatus for cooling or heating discrete materials |
| CN101936648A (en) * | 2010-09-26 | 2011-01-05 | 中冶焦耐(大连)工程技术有限公司 | Humidifier for uniformly drying coking coal of different particle diameters by using hot flue gas of coke furnace |
| CN102260559A (en) * | 2011-05-31 | 2011-11-30 | 李柏荣 | High-quality coal product production plant and production system |
| CN203011087U (en) * | 2013-01-09 | 2013-06-19 | 张爱军 | Radiation type drying machine |
| CN203132399U (en) * | 2013-01-31 | 2013-08-14 | 常州朗脉洁净技术有限公司 | Clean tube type heat exchanger with double tube sheets |
| CN205175066U (en) * | 2015-11-16 | 2016-04-20 | 西安航天华威化工生物工程有限公司 | Fine coal desicator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106563389A (en) * | 2016-11-17 | 2017-04-19 | 天津科技大学 | Spray-freezing microchannel dryer |
| CN106563389B (en) * | 2016-11-17 | 2019-05-03 | 天津科技大学 | Spray chilling microchannel drier |
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Application publication date: 20160120 |