CN105258481A - Pulverized coal drier - Google Patents

Pulverized coal drier Download PDF

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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
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CN
China
Prior art keywords
fine coal
flue gas
temperature flue
bobbin carriage
pulverized coal
Prior art date
Application number
CN201510782327.3A
Other languages
Chinese (zh)
Inventor
马新辉
张睿
吴涵宇
成由甲
左冬声
赵仕哲
李万万
Original Assignee
西安航天华威化工生物工程有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 西安航天华威化工生物工程有限公司 filed Critical 西安航天华威化工生物工程有限公司
Priority to CN201510782327.3A priority Critical patent/CN105258481A/en
Publication of CN105258481A publication Critical patent/CN105258481A/en

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Abstract

The invention relates to a pulverized coal drier. A conventional pulverized coal drying technology has defects in safety and quality guarantee. The pulverized coal drier comprises a pulverized coal feeding pipe box, a high temperature flue gas outlet pipe box, a pulverized coal discharging cylinder body, a high temperature flue gas inlet pipe box and a pulverized coal discharging pipe box from top to bottom, wherein a pulverized coal feeding pipe opening is formed in the top of the pulverized coal feeding pipe box; pulverized coal discharging pipes are arranged between the bottom of the pulverized coal feeding pipe box and the top of the pulverized coal discharging cylinder body; pulverized coal discharging pipes are arranged between the bottom of the pulverized coal discharging cylinder body and the pulverized coal discharging pipe box; a pulverized coal discharging pipe opening is formed in the bottom of the pulverized coal discharging pipe box; a high temperature flue gas inlet is formed in the side wall of the high temperature flue gas inlet pipe box; high temperature flue gas heat exchange pipes are arranged between the top of the high temperature flue gas inlet pipe box and the high temperature flue gas outlet pipe box; and a high temperature flue gas outlet is formed in the side wall of the high temperature flue gas outlet pipe box. The pulverized coal drier provided by the invention overcomes the defects in the prior art and has the advantages of high efficiency, low energy consumption and low cost.

Description

Fine coal drier

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)

1. fine coal drier, is characterized in that:
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) between fine coal blanking cylindrical shell (8) bottom and fine coal discharging bobbin carriage (12) top, fine coal discharging bobbin carriage (12) bottom is provided with the fine coal discharging mouth of pipe;
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.
2. fine coal drier according to claim 1, is characterized in that:
Fine coal blanking cylindrical shell (8) inside is provided with the downward-sloping and deflection plate that gathers materials (6) that length is different.
3. fine coal drier according to claim 1, is characterized in that:
Fine coal blanking cylindrical shell (8) is provided with mechanical oscillation (10).
4. fine coal drier according to claim 1, is characterized in that:
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).
5. fine coal drier according to claim 1, is characterized in that:
Fine coal blanking cylindrical shell (8) inside is provided with downward-sloping and waney gas collection umbrella (7).
CN201510782327.3A 2015-11-16 2015-11-16 Pulverized coal drier CN105258481A (en)

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

Publications (1)

Publication Number Publication Date
CN105258481A true CN105258481A (en) 2016-01-20

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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)

* Cited by examiner, † Cited by third party
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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
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