CN102564084A - Low-temperature waste-heat coal slime drying device - Google Patents
Low-temperature waste-heat coal slime drying device Download PDFInfo
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- CN102564084A CN102564084A CN2012100657724A CN201210065772A CN102564084A CN 102564084 A CN102564084 A CN 102564084A CN 2012100657724 A CN2012100657724 A CN 2012100657724A CN 201210065772 A CN201210065772 A CN 201210065772A CN 102564084 A CN102564084 A CN 102564084A
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- coal slime
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- drying device
- heat
- rotary drying
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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Abstract
The invention relates to a material drying device, and in particular relates to a low-temperature waste-heat coal slime drying device. The low-temperature waste-heat coal slime drying device comprises an air-source heat pump, a waste-heat heater and a rotary drying drum, and is characterized in that the air-source heat pump consists of a compressor, a condenser, an expansion valve and an evaporator; the outer side of the evaporator is provided with an air inlet in a connecting manner; the outer end of the rotary drying drum is provided with a feeding port; the inner end of the rotary drying drum is provided with a discharging port; and a fan close to one end of the feeding port is arranged on the rotary drying drum in a connecting manner. The low-temperature waste-heat coal slime drying device has the beneficial effects that the technical scheme is reasonable, the structure is simple and easy, and the operating cost is low; and the low-temperature waste-heat coal slime drying device is conductive to reducing the energy consumption of coal slime and reducing pollutant discharging, and powerfully enhances the construction of green mining areas and harmonious mining areas.
Description
(1) technical field
The present invention relates to a kind of material drying unit, particularly a kind of low temperature exhaust heat coal slime drying unit.
(2) background technology
The semi-solid thing of the moisture formation of coal slime general reference coal dust is a kind of product in the coal production process.The degree of depth of coal processing and range are all in fast development, and the output of coal slime rises significantly, how to improve the added value of coal slime, makes coal slime turn waste into wealth, and has become the problem that presses for research.The research and development of coal slime dryer and production are the most effectively ways that coal slime is reclaimed and utilizes.At present most popular is the rotary kiln dryer: the rotary kiln dryer mainly is that the high-temperature flue gas that utilizes fuel (coal, natural gas) burning to produce is dried coal slime in rotary kiln.This dryer has characteristics such as energy consumption height, thermal losses are big, operating cost height, has limited its application.And utilize coal as the dryer of raw material since coal-fired sulfur-bearing cause dryer afterbody dewing corrosion easily and cause the dust pollution of surrounding enviroment.In addition, when the oven dry coal slime consumed mass energy, coal mining enterprise produced a large amount of mine waste heats, return air waste heat, gas electricity waste heat, residual heat of air compressor etc. in process of production.These low temperature heat energies also fail fully to be effectively utilized, and utilize the above-mentioned waste heat energy to realize that green recycling economy is significant for energy-saving and emission-reduction.
(3) summary of the invention
The present invention is in order to remedy the deficiency of prior art, provide a kind of simple for structure, operating cost is low, energy consumption is low, can reduce the low temperature exhaust heat coal slime drying unit of pollutant emission.
The present invention realizes through following technical scheme:
A kind of low temperature exhaust heat coal slime drying unit; Comprise air source heat pump, waste heat heater and rotary drying cylinder; It is characterized in that: said air source heat pump is made up of compressor, condenser, expansion valve and evaporimeter, and the evaporimeter outside is connected with air inlet, and rotary drying cylinder outer end is provided with charging aperture; Rotary drying cylinder inner end is provided with discharging opening, is connected with blower fan near charging aperture one end on the rotary drying cylinder.
Said blower fan, rotary drying cylinder, waste heat heater, condenser are connected through airduct with evaporimeter successively.
Said compressor, condenser, expansion valve and evaporimeter are connected through refrigerant pipe successively.
The invention has the beneficial effects as follows: utilize the condensation heat of low temperature exhaust heat and air dewetting to carry out the coal slime oven dry, advantage such as the scheme that possesses skills is reasonable, simple for structure, operating cost is low; The residual heat resources that make full use of in the mine production process help to reduce coal slime oven dry energy consumption, reduce pollutant emission, have effectively promoted the construction in green mining area, harmonious mining area.
(4) description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Accompanying drawing 1 is a structural representation of the present invention;
Among the figure, 1 air source heat pump, 2 waste heat heaters, 3 rotary drying cylinders, 4 compressors, 5 condensers, 6 expansion valves, 7 evaporimeters, 8 air inlets, 9 charging apertures, 10 discharging openings, 11 blower fans, 12 airducts, 13 refrigerant pipes.
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.This embodiment comprises air source heat pump 1, waste heat heater 2 and rotary drying cylinder 3; Air source heat pump is made up of compressor 4, condenser 5, expansion valve 6 and evaporimeter 7; Evaporimeter 7 outsides are connected with air inlet 8; Rotary drying cylinder 3 outer ends are provided with charging aperture 9, and rotary drying cylinder 9 inner ends are provided with discharging opening 10, are connected with blower fan 11 near charging aperture 9 one ends on the rotary drying cylinder 3.Blower fan 11, rotary drying cylinder 3, waste heat heater 2, condenser 5 and evaporimeter 7 are connected through airduct 12 successively.Compressor 4, condenser 5, expansion valve 6 and evaporimeter 7 are connected through refrigerant pipe 13 successively.
Adopt low temperature exhaust heat coal slime drying unit of the present invention; Outside air passes through the evaporimeter 7 that air inlet 8 gets into air source heat pumps 1 under the effect of blower fan 11; Reduce in evaporimeter 7 air temperature and humidities, get into the condenser 5 of air source heat pump 1 again, the condensation waste heat temperature of absorption refrigeration agent in condenser 5 raises; Pass through waste heat heater 2 further heat temperature raisings afterwards, become the air of high temperature drying.The air of high temperature drying in rotary drying cylinder 3 with wet coal slime generation heat and mass, the moisture of taking away in the coal slime becomes the low temperature humid air.Humid air is discharged under the effect of blower fan 11.Wet coal slime gets into rotary drying cylinder 3 through charging aperture 9, and dried coal slime is discharged through discharging opening 10, accomplishes dry run.
Claims (3)
1. low temperature exhaust heat coal slime drying unit; Comprise air source heat pump (1), waste heat heater (2) and rotary drying cylinder (3); It is characterized in that: said air source heat pump is made up of compressor (4), condenser (5), expansion valve (6) and evaporimeter (7); Evaporimeter (7) outside is connected with air inlet (8); Rotary drying cylinder (3) outer end is provided with charging aperture (9), and rotary drying cylinder (9) inner end is provided with discharging opening (10), and rotary drying cylinder (3) is gone up and is connected with blower fan (11) near charging aperture (9) one ends.
2. low temperature exhaust heat coal slime drying unit according to claim 1 is characterized in that: said blower fan (11), rotary drying cylinder (3), waste heat heater (2), condenser (5) and evaporimeter (7) are connected through airduct (12) successively.
3. low temperature exhaust heat coal slime drying unit according to claim 1 is characterized in that: said compressor (4), condenser (5), expansion valve (6) and evaporimeter (7) are connected through refrigerant pipe (13) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100657724A CN102564084A (en) | 2012-03-14 | 2012-03-14 | Low-temperature waste-heat coal slime drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100657724A CN102564084A (en) | 2012-03-14 | 2012-03-14 | Low-temperature waste-heat coal slime drying device |
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| CN102564084A true CN102564084A (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100657724A Pending CN102564084A (en) | 2012-03-14 | 2012-03-14 | Low-temperature waste-heat coal slime drying device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759260A (en) * | 2012-07-12 | 2012-10-31 | 西安交通大学 | Lignite drying and upgrading system |
| CN105202895A (en) * | 2015-09-28 | 2015-12-30 | 无锡恒腾精密机械有限公司 | Anti-corrosion dryer |
| CN105859097A (en) * | 2016-05-24 | 2016-08-17 | 华南理工大学 | Method and device for drying sludge by utilizing thermal power plant waste heat |
| CN111981770A (en) * | 2020-08-12 | 2020-11-24 | 安徽电力股份有限公司淮南田家庵发电厂 | Coal drying device for coal-fired power plant |
| CN113108591A (en) * | 2021-04-30 | 2021-07-13 | 浙江工业大学 | Stirring device suitable for drying garbage and drying method thereof |
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| CN201297829Y (en) * | 2008-09-01 | 2009-08-26 | 珠海慧生能源技术发展有限公司 | Energy-saving drying system |
| WO2009153842A1 (en) * | 2008-06-20 | 2009-12-23 | Shibata Katsumi | Drying apparatus |
| CN101986074A (en) * | 2010-11-22 | 2011-03-16 | 大唐鸡西热电有限责任公司 | Method for drying coal slime by hot wind and smoke of power station boiler |
| CN201992959U (en) * | 2011-03-10 | 2011-09-28 | 郑州市鼎力干燥设备有限公司 | Coal slurry drying device |
| CN202018186U (en) * | 2011-03-25 | 2011-10-26 | 华北电力大学（保定） | System using boiler flue gas waste heat for drying brown coal |
| CN202470658U (en) * | 2012-03-14 | 2012-10-03 | 煤炭工业济南设计研究院有限公司 | Low temperature waste heat coal slurry drying device |
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2012
- 2012-03-14 CN CN2012100657724A patent/CN102564084A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2009153842A1 (en) * | 2008-06-20 | 2009-12-23 | Shibata Katsumi | Drying apparatus |
| CN201297829Y (en) * | 2008-09-01 | 2009-08-26 | 珠海慧生能源技术发展有限公司 | Energy-saving drying system |
| CN101986074A (en) * | 2010-11-22 | 2011-03-16 | 大唐鸡西热电有限责任公司 | Method for drying coal slime by hot wind and smoke of power station boiler |
| CN201992959U (en) * | 2011-03-10 | 2011-09-28 | 郑州市鼎力干燥设备有限公司 | Coal slurry drying device |
| CN202018186U (en) * | 2011-03-25 | 2011-10-26 | 华北电力大学（保定） | System using boiler flue gas waste heat for drying brown coal |
| CN202470658U (en) * | 2012-03-14 | 2012-10-03 | 煤炭工业济南设计研究院有限公司 | Low temperature waste heat coal slurry drying device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759260A (en) * | 2012-07-12 | 2012-10-31 | 西安交通大学 | Lignite drying and upgrading system |
| CN102759260B (en) * | 2012-07-12 | 2014-07-02 | 西安交通大学 | Lignite drying and upgrading system |
| CN105202895A (en) * | 2015-09-28 | 2015-12-30 | 无锡恒腾精密机械有限公司 | Anti-corrosion dryer |
| CN105859097A (en) * | 2016-05-24 | 2016-08-17 | 华南理工大学 | Method and device for drying sludge by utilizing thermal power plant waste heat |
| CN111981770A (en) * | 2020-08-12 | 2020-11-24 | 安徽电力股份有限公司淮南田家庵发电厂 | Coal drying device for coal-fired power plant |
| CN113108591A (en) * | 2021-04-30 | 2021-07-13 | 浙江工业大学 | Stirring device suitable for drying garbage and drying method thereof |
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Application publication date: 20120711 |