CN202902752U - High-moisture lignite drying device - Google Patents
High-moisture lignite drying device Download PDFInfo
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- CN202902752U CN202902752U CN2012205951669U CN201220595166U CN202902752U CN 202902752 U CN202902752 U CN 202902752U CN 2012205951669 U CN2012205951669 U CN 2012205951669U CN 201220595166 U CN201220595166 U CN 201220595166U CN 202902752 U CN202902752 U CN 202902752U
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- brown coal
- drying
- coal
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model relates to a high moisture brown coal drying device belongs to coal processing and comprehensive utilization field. The utility model discloses constitute by feed bin, screw discharger, belt conveyor, broken screening machine, rotary drier, cyclone, sack cleaner, latent heat recovery unit, fan and water treatment and steam regenerating unit who is equipped with the clamp cover. The device's characteristics are that drying efficiency is high, safety, environmental protection, and the used steam of dry brown coal can cyclic utilization after handling moreover, can carry out abundant drying to the brown coal that the water content is higher, can reduce the influence of brown coal granularity to drying efficiency simultaneously.
Description
Technical field
The utility model relates to a kind of high-moisture brown coal drying device, belongs to Coal dressing and comprehensive utilization field.
Background technology
China's lignite resource is abundant, and the brown coal moisture is up to 15wt%～50wt%, and caloric value is low, is not easy to long-distance transportation, also is not suitable for direct combustion power generation.Process the moisture that reduces brown coal by drying, can improve the caloric value of brown coal, reduce cost of transportation.The brown coal drying and dehydrating technology is a lot, can be divided into dry three kinds of mechanical drying, dehydration by evaporation drying and non-evaporating dehydrolysis.Mechanical drying is in coal preparation plant's extensive use, but its disposal ability and drying efficiency are difficult to adapt to the requirement of brown coal drying; The dehydration by evaporation dry technology requires the little and even drying that also is difficult to satisfy brown coal of coal particle size; Non-evaporation drying is take the steam drying technology as representative, and the large drying efficiency of disposal ability is high, can carry out drying to the higher brown coal of water content and process.
Summary of the invention
The purpose of this utility model characteristics are that drying efficiency is high, safety, environmental protection, and the used steam of drying brown coal after treatment can be recycling.High-moisture brown coal and the steam counter current contacting in rotary dryer that is characterised in that of the present utility model, the flue gas of generation is through cyclone separator and twice dedusting of sack cleaner; Be sent to feeding warehouse from sack cleaner high-temperature flue gas out through recovery of latent heat device and blower fan brown coal are carried out preheating; Water vapor condensation in the flue gas is recycling by water treatment and steam regenerative system generation superheated steam simultaneously.For the higher brown coal of water content are carried out abundant drying, reduce simultaneously the brown coal granularity to the impact of drying efficiency, the utility model has carried out the two-stage crushing and screening to the brown coal that enter rotary dryer, makes the brown coal feed size less than 50mm.
Description of drawings
Fig. 1 is the utility model flow chart
Fig. 2 is the utility model system and device figure
Among the figure: the 1-feed bin; The 2-screw discharging machine; The 3-belt conveyer; 4-crusberscreen 1; 5-crusberscreen 2; The 6-rotary dryer; The 7-cyclone dust collectors; The 8-sack cleaner; 9-recovery of latent heat device; The 10-blower fan; 11-water treatment and steam regenerating unit;
The specific embodiment
Such as accompanying drawing 1, granularity is after 15%～50% brown coal enter feeding warehouse less than 300mm and water content, is sent to broken screen(ing) machine through screw discharging machine and belt conveyer and carries out preliminary crushing and screening; Adopt overheated steam as the thermal source of rotary dryer, granularity enters less than or equal to the brown coal of 50mm carries out drying in the rotary dryer, and granularity is dry through entering after the second-time breakage in the rotary dryer greater than the brown coal of 50mm, and dried brown coal enter warehouse for finished product; Out flue gas enters the air inlet of cyclone dust collectors from rotary dryer, and larger particle is discharged from the discharging opening of cyclone dust collectors and entered the warehouse for finished product; Enter sack cleaner from the air outlet flue gas out of cyclone dust collectors, the coal grain that granularity is less is discharged from sack cleaner and is sent to the boiler combustion utilization, out flue gas is after latent heat recoverer reclaims heat in the sack cleaner, a part is sent to feed bin preheating brown coal, unavailable partially draining through blower fan; Another part through water treatment and steam regenerating unit with the water vapor condensation in the flue gas, in settling tank, remove coal dust after, be sent to and produce the vapor recycle utilization in the boiler.
Such as accompanying drawing 2, a kind of high-moisture brown coal drying system device is mainly by the feed bin 1 that is provided with chuck, auger stripper 2, belt conveyer 3, crusberscreen 4 and crusberscreen 5, rotary dryer 6, cyclone dust collectors 7, sack cleaner 8, recovery of latent heat device 9, blower fan 10 and water treatment and steam regenerating unit 11 form.It is characterized in that the feed bin 1 that is provided with chuck is connected with auger stripper 2, crusberscreen 4, crusberscreen 5 and water treatment and steam regenerating unit 11 are connected with rotary dryer 6, rotary dryer 6 is connected with cyclone dust collectors 7, cyclone dust collectors 7 are connected with sack cleaner 8, and recovery of latent heat device 9 and blower fan 10 and water treatment and steam regenerating unit 11 are connected.Granularity is after 15%～50% brown coal enter feeding warehouse 1 less than 300mm and water content, is sent to broken screen(ing) machine 4 through screw discharging machine 2 and belt conveyer 3 and carries out preliminary crushing and screening; Adopt the superheated steam of boiler generation as the thermal source of rotary dryer, granularity after the screening is delivered to less than or equal to brown coal under the sieve of 50mm and carried out drying in the rotary dryer 6, oversize is sent into crusberscreen 5 and is crushed to granularity and delivers to after less than 50mm and carry out drying in the rotary dryer 6, and dried brown coal enter warehouse for finished product.Out flue gas enters the air inlet of cyclone dust collectors 7 from rotary dryer 6, and larger particle is discharged from the discharging opening of cyclone dust collectors 7 and entered the warehouse for finished product; Enter sack cleaner 8 from the air outlet flue gas out of cyclone dust collectors 7, the coal grain that granularity is less is discharged from sack cleaner 8 and is sent to the boiler combustion utilization, out flue gas is after recovery of latent heat device 9 reclaims heats in the sack cleaner 8, a part is sent to preheating brown coal in the chuck of feed bin 1, unavailable partially draining through blower fan 10; Another part through water treatment and steam regenerating unit 11 with the water vapor condensation in the flue gas, in settling tank, remove coal dust after, be sent to and produce the utilization of regeneration vapor recycle in the boiler.
Claims (1)
1. high-moisture brown coal drying device, the feed bin (1) that it is characterized in that being provided with chuck is connected with auger stripper (2), crusberscreen (4), crusberscreen (5) and water treatment and steam regenerating unit (11) are connected with rotary dryer 6, rotary dryer (6) is connected with cyclone dust collectors (7), cyclone dust collectors (7) are connected with sack cleaner (8), and recovery of latent heat device (9) and blower fan (10) and water treatment and steam regenerating unit (11) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205951669U CN202902752U (en) | 2012-11-05 | 2012-11-05 | High-moisture lignite drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205951669U CN202902752U (en) | 2012-11-05 | 2012-11-05 | High-moisture lignite drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202902752U true CN202902752U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205951669U Expired - Fee Related CN202902752U (en) | 2012-11-05 | 2012-11-05 | High-moisture lignite drying device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202902752U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219475A (en) * | 2015-10-28 | 2016-01-06 | 中国矿业大学 | Brown coal upgrading system and method for upgrading thereof |
| CN109090142A (en) * | 2018-08-13 | 2018-12-28 | 云南中翼鼎东能源科技开发有限公司 | The method and system of natural and multi-functional plant growth regulator are prepared using lignite |
-
2012
- 2012-11-05 CN CN2012205951669U patent/CN202902752U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219475A (en) * | 2015-10-28 | 2016-01-06 | 中国矿业大学 | Brown coal upgrading system and method for upgrading thereof |
| CN109090142A (en) * | 2018-08-13 | 2018-12-28 | 云南中翼鼎东能源科技开发有限公司 | The method and system of natural and multi-functional plant growth regulator are prepared using lignite |
| CN109090142B (en) * | 2018-08-13 | 2021-02-05 | 云南中翼鼎东能源科技开发有限公司 | Method and system for preparing natural multifunctional plant growth regulator by using lignite |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20151105 |
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| EXPY | Termination of patent right or utility model |