CN102607254A - Device for drying biomass fuel by using biomass power plant boiler flue gas - Google Patents

Device for drying biomass fuel by using biomass power plant boiler flue gas Download PDF

Info

Publication number
CN102607254A
CN102607254A CN2012100969552A CN201210096955A CN102607254A CN 102607254 A CN102607254 A CN 102607254A CN 2012100969552 A CN2012100969552 A CN 2012100969552A CN 201210096955 A CN201210096955 A CN 201210096955A CN 102607254 A CN102607254 A CN 102607254A
Authority
CN
China
Prior art keywords
power plant
flue gas
plant boiler
inlet
electric power
Prior art date
Application number
CN2012100969552A
Other languages
Chinese (zh)
Inventor
卢英林
汪宝峰
刘庆春
申济
王东向
柏杨
Original Assignee
沈阳远大科技实业有限公司
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 沈阳远大科技实业有限公司 filed Critical 沈阳远大科技实业有限公司
Priority to CN2012100969552A priority Critical patent/CN102607254A/en
Publication of CN102607254A publication Critical patent/CN102607254A/en

Links

Abstract

A device for drying biomass fuel by using biomass power plant boiler flue gas comprises a sawdust drying device and a biomass power plant boiler connected with a flue gas processing device. The sawdust drying device comprises an air blower, a frequency conversion speed adjusting electric feeding machine, a multi-ring drum dryer and a cyclone separator which are connected. The biomass power plant boiler connected with the flue gas processing device comprises the biomass power plant boiler, a bag-type dust remover, a draught fan and a chimney which are connected. A flue gas outlet of the boiler and the air blower are connected with a front bypass valve, an outlet of the cyclone separator and an inlet of the bag-type dust remover are connected with a rear bypass valve, a flue gas outlet of the boiler and an inlet of the bag-type dust remover are connected with a separation valve, an relative humidity sensor and a temperature sensor are arranged at an inlet position of the bag-type dust remover, and a control end of a frequency conversion speed adjusting motor of the frequency conversion speed adjusting electric feeding machine is connected with a controller. The device utilizes high-temperature flue gas of the biomass power plant boiler to dry sawdust, a dew-point controller is arranged in tail gas, and heat of the flue gas is utilized to the maximum extent.

Description

Utilize the equipment of biomass electric power plant boiler flue oven dry biomass fuel
Technical field
The present invention relates to a kind of equipment of drying biomass fuel, particularly a kind of hot air source device of drying biomass fuel equipment.
Background technology
Biomass fuel is a kind of regenerative resource of excellence.Boiler is that the steam power plant of fuel is called biomass electric power plant with the biomass fuel.
In the biomass fuel that biomass electric power plant is used, wood chip is the most frequently used biomass fuel.The wood raw material moisture content is higher, generally is 40%~45%, and the highest also has more than 60%; The higher direct burning of wet wood chip of moisture content is difficult on fire; And water evaporates consumption of calorie in combustion process causes the actual calorific value of wood chip to reduce, and furnace temperature is difficult to reach the boiler design value; Cause boiler thermal output to reduce greatly, be primary prerequisite so wood chip is dried into; The biomass electric power plant boiler is connected with apparatus for treating flue gas such as sack cleaner, air-introduced machine and chimney, has carbon granules in the flue dust that the wood chip incomplete combustion is discharged, and is prone to sack cleaner is burnt out, and causes power plant's smoke evacuation to exceed standard and economic loss; The exhaust gas temperature of biomass electric power plant boiler generally is about 200 ℃, if directly enter atmosphere, causes energy waste unavoidably.
The oven dry wood chip can adopt the wood chip drying plant, the development of the long-range Scientific and Technical Industry Co., Ltd in LiaoNing, China Shenyang, a kind of wood chip drying plant of production.This wood chip drying plant comprises continuous air blast, electronic batcher, multi-ring drum drying machine and cyclone separator; The wood chip drying plant will have the hot air source device; The hot air source device of wood chip drying plant is a hot-blast stove; During use, consume a large amount of energy, the cost of biomass electric power plant generating is improved.
The exhaust gas temperature of biomass electric power plant boiler is higher, generally is about 200 ℃, has certain value, but flue gas be difficult to utilize, particularly as the hot air source of drying plant.In the prior art, do not utilize the equipment that utilizes biomass electric power plant boiler flue oven dry biomass fuel of power plant boiler as the hot air source device.
Summary of the invention
The objective of the invention is in order to overcome above-mentioned deficiency, propose a kind of equipment that utilizes biomass electric power plant boiler flue oven dry biomass fuel.
The present invention realizes with following method.
Invention scheme of the present invention is: be connected the equipment of wood chip oven dry in the apparatus for treating flue gas of biomass electric power plant boiler, let the hot air source device of biomass electric power plant boiler as the wood chip drying plant.
For realizing the foregoing invention scheme; Utilize the equipment of biomass electric power plant boiler flue oven dry biomass fuel to comprise wood chip drying plant and the biomass electric power plant boiler that is connected with apparatus for treating flue gas; The wood chip drying plant comprises continuous air blast, electrical variable frequency adjustable speed batcher, multi-ring drum drying machine and cyclone separator, and the biomass electric power plant boiler that is connected with apparatus for treating flue gas comprises continuous biomass electric power plant boiler, sack cleaner, air-introduced machine and chimney, and the outlet of air blast and electrical variable frequency adjustable speed batcher links to each other with the inlet of multi-ring drum drying machine; The outlet of multi-ring drum drying machine links to each other with the inlet of cyclone separator; The flue gas outlet of biomass electric power plant boiler links to each other with the inlet of sack cleaner, and the outlet of sack cleaner links to each other with the inlet of air-introduced machine, and the outlet of air-introduced machine links to each other with the inlet of chimney; Be connected with preceding bypass valve between the flue gas outlet of biomass electric power plant boiler and the inlet of air blast; Be connected with the back bypass valve between the outlet of cyclone separator and the inlet of sack cleaner, be connected with separation valve door between the flue gas outlet of biomass electric power plant boiler and the inlet of sack cleaner, relative humidity sensor and temperature sensor are installed in the sack cleaner porch; The control end of the frequency control motor of electrical variable frequency adjustable speed batcher is connected with controller; Controller has continuous single-chip microcomputer and fuzzy control appearance, and single-chip microcomputer has and can calculate corresponding dew-point temperature and export dew-point temperature Signal Processing program according to the moisture signal and the temperature signal of input, and the fuzzy control appearance has the fuzzy amplifier that can amplify the dew-point temperature signal of input and export the fuzzy control signal; Control signal after amplifying is input in the frequency converter of frequency control batcher; Thereby control material loading speed and material loading amount, promptly---when system's exhaust temperature of getting rid of was lower than dew-point temperature, material loading speed reduced; The material amount that gets into drying machine reduces; Thereby system's exhaust temperature of discharge is raise, carry out plateau up to being higher than dew-point temperature, vice versa.
During use; Current bypass valve closes with the back bypass valve, when separation valve door is opened; The flue gas that the flue gas outlet of biomass electric power plant boiler is discharged, successively through sack cleaner, air-introduced machine and chimney emptying, the biomass electric power plant boiler is for producing the normal operation of steam.
When separation valve door is closed, when preceding bypass valve and back bypass valve are opened; The flue gas that the flue gas outlet of biomass electric power plant boiler is discharged; Successively through air blast, multi-ring drum drying machine; Emptying behind cyclone separator, sack cleaner, air-introduced machine and the chimney, the biomass electric power plant boiler is for producing the normal operation of steam.
The biomass electric power plant boiler produces high-temperature flue gas when operation; The electrical variable frequency adjustable speed batcher is discharged wet wood chip quantitatively; Air blast is mixed into Dual-Phrase Distribution of Gas olid to high-temperature flue gas and wet wood chip and is blown in the multi-ring drum drying machine; Wet wood chip contacts with high-temperature flue gas at multi-ring drum drying machine is dried, and flue gas becomes the low temperature moisture that is higher than dew point, and the wood chip of oven dry and low temperature moisture are discharged from the discharging opening of multi-ring drum drying machine and got into cyclone separator; The low temperature moisture is discharged from the air outlet of cyclone separator upper end and is got into behind the sack cleaner by air-introduced machine sucking-off emptying; The wood chip of oven dry is discharged from the discharging opening of cyclone separator lower end, is used for the fuel as the biomass electric power plant boiler, lets the biomass electric power plant boiler for producing the normal operation of steam.
When the biomass electric power plant boiler normally moves for producing steam,, should reduce exhaust gas temperature as much as possible, but exhaust gas temperature can not be lower than the dew-point temperature of tail gas in order to maximally utilise the heat of flue gas.The present invention has relative humidity sensor and the temperature sensor of installing in the sack cleaner porch, frequency control
The control end of the frequency control motor of moving batcher is connected with controller; Controller has continuous single-chip microcomputer and fuzzy control appearance; Single-chip microcomputer has and can calculate corresponding dew-point temperature and export dew-point temperature Signal Processing program according to the moisture signal and the temperature signal of input, and the fuzzy control appearance has the fuzzy amplifier that can amplify the dew-point temperature signal of input and export the fuzzy control signal.When the single-chip microcomputer in the controller is calculated corresponding dew-point temperature and is lower than dew-point temperature according to moisture signal and the temperature signal of input; The control signal that the output of fuzzy control appearance is amplified; Let the material loading speed of electrical variable frequency adjustable speed batcher reduce, because flue tolerance and temperature are certain, so the effluent gas temperature of getting rid of from drying machine will rise; After exhaust gas temperature was higher than dew-point temperature, the moving batcher of frequency control got into normal stability program.Make exhaust gas temperature be higher than dew-point temperature all the time, maximally utilise the heat of flue gas.
The present invention with the biomass electric power plant boiler as the hot air source device; The high-temperature flue gas oven dry wood chip that utilizes the biomass electric power plant boiler to discharge; Maximally utilised the heat of high-temperature flue gas; Saved mass energy, the wood chip of oven dry has improved the efficiency of combustion of wood chip in boiler as the fuel of biomass electric power plant boiler.
Below in conjunction with accompanying drawing, the present invention is done explanation further.
Description of drawings
Fig. 1 utilizes the master of the equipment of biomass electric power plant boiler flue oven dry biomass fuel to look sketch map according to a kind of of invention scheme proposition of the present invention.
The specific embodiment
Among Fig. 1; Utilize the equipment of biomass electric power plant boiler flue oven dry biomass fuel to comprise wood chip drying plant 1 and the biomass electric power plant boiler 2 that is connected with apparatus for treating flue gas; The wood chip drying plant comprises continuous air blast 3, electrical variable frequency adjustable speed batcher 4, multi-ring drum drying machine 5 and cyclone separator 6; The biomass electric power plant boiler that is connected with apparatus for treating flue gas comprises continuous biomass electric power plant boiler 7, sack cleaner 8, air-introduced machine 9 and chimney 10; The outlet of air blast and electrical variable frequency adjustable speed batcher links to each other with the inlet of multi-ring drum drying machine; The outlet of multi-ring drum drying machine links to each other with the inlet of cyclone separator; The flue gas outlet of biomass electric power plant boiler links to each other with the inlet of sack cleaner, and the outlet of sack cleaner links to each other with the inlet of air-introduced machine, and the outlet of air-introduced machine links to each other with the inlet of chimney; Bypass valve 11 before being connected with between the flue gas outlet of biomass electric power plant boiler and the inlet of air blast; Be connected with back bypass valve 12 between the outlet of cyclone separator and the inlet of sack cleaner, be connected with separation valve door 13 between the flue gas outlet of biomass electric power plant boiler and the inlet of sack cleaner, relative humidity sensor and temperature sensor 14 are installed in the sack cleaner porch; The control end of the frequency control motor of electrical variable frequency adjustable speed batcher is connected with controller 15; Controller has continuous single-chip microcomputer and fuzzy control appearance, and single-chip microcomputer has and can calculate corresponding dew-point temperature and export dew-point temperature Signal Processing program according to the moisture signal and the temperature signal of input, and the fuzzy control appearance has the fuzzy amplifier that can amplify the dew-point temperature signal of input and export the fuzzy control signal.

Claims (1)

1. equipment that utilizes biomass electric power plant boiler flue oven dry biomass fuel; Comprise wood chip drying plant and the biomass electric power plant boiler that is connected with apparatus for treating flue gas; The wood chip drying plant comprises continuous air blast, electrical variable frequency adjustable speed batcher, multi-ring drum drying machine and cyclone separator, and the biomass electric power plant boiler that is connected with apparatus for treating flue gas comprises continuous biomass electric power plant boiler, sack cleaner, air-introduced machine and chimney, and the outlet of air blast and electrical variable frequency adjustable speed batcher links to each other with the inlet of multi-ring drum drying machine; The outlet of multi-ring drum drying machine links to each other with the inlet of cyclone separator; The flue gas outlet of biomass electric power plant boiler links to each other with the inlet of sack cleaner, and the outlet of sack cleaner links to each other with the inlet of air-introduced machine, and the outlet of air-introduced machine links to each other with the inlet of chimney; It is characterized in that: be connected with preceding bypass valve between the flue gas outlet of biomass electric power plant boiler and the inlet of air blast; Be connected with the back bypass valve between the outlet of cyclone separator and the inlet of sack cleaner, be connected with separation valve door between the flue gas outlet of biomass electric power plant boiler and the inlet of sack cleaner, relative humidity sensor and temperature sensor are installed in the sack cleaner porch; The control end of the frequency control motor of electrical variable frequency adjustable speed batcher is connected with controller; Controller has continuous single-chip microcomputer and fuzzy control appearance, and single-chip microcomputer has and can calculate corresponding dew-point temperature and export dew-point temperature Signal Processing program according to the moisture signal and the temperature signal of input, and the fuzzy control appearance has the fuzzy amplifier that can amplify the dew-point temperature signal of input and export the fuzzy control signal; Control signal after amplifying is input in the frequency converter of frequency control batcher; Thereby control material loading speed and material loading amount, promptly---when system's exhaust temperature of getting rid of was lower than dew-point temperature, material loading speed reduced; The material amount that gets into drying machine reduces; Thereby system's exhaust temperature of discharge is raise, carry out plateau up to being higher than dew-point temperature, vice versa.
CN2012100969552A 2012-04-05 2012-04-05 Device for drying biomass fuel by using biomass power plant boiler flue gas CN102607254A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012100969552A CN102607254A (en) 2012-04-05 2012-04-05 Device for drying biomass fuel by using biomass power plant boiler flue gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012100969552A CN102607254A (en) 2012-04-05 2012-04-05 Device for drying biomass fuel by using biomass power plant boiler flue gas

Publications (1)

Publication Number Publication Date
CN102607254A true CN102607254A (en) 2012-07-25

Family

ID=46524868

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012100969552A CN102607254A (en) 2012-04-05 2012-04-05 Device for drying biomass fuel by using biomass power plant boiler flue gas

Country Status (1)

Country Link
CN (1) CN102607254A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104315832A (en) * 2014-08-26 2015-01-28 江苏新沂沪千人造板制造有限公司 Device for recycling heat energy of boiler flue gas
CN104567335A (en) * 2015-01-27 2015-04-29 中国能源建设集团江苏省电力设计院有限公司 System and technological method for drying coal slime by high-temperature flue gas of power station
CN106766760A (en) * 2017-01-25 2017-05-31 九三粮油工业集团有限公司 A kind of bean dregs drying plant

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5046265A (en) * 1989-12-04 1991-09-10 Kalb G William Method and system for reducing the moisture content of sub-bituminous coals and the like
CN201068344Y (en) * 2007-06-22 2008-06-04 刘孝武 Petroleum coke breeze combustion transmission device for industrial furnace
CN101224358A (en) * 2007-01-18 2008-07-23 张大伟 Active carbocoal filtering adsorption material processing equipment
CN201269688Y (en) * 2008-09-05 2009-07-08 常州市范群干燥设备有限公司 Explosion-proof drying machine
CN201500555U (en) * 2009-09-28 2010-06-09 西安建筑科技大学 Ultrafine powder preparation device
CN201529567U (en) * 2009-10-23 2010-07-21 河南理工大学 Permanent magnetic roll type magnetic separating apparatus
CN101915497A (en) * 2010-08-13 2010-12-15 辽宁中田干燥设备制造有限公司 Lignite-drying and quality-improving process for preparing superheated steam from waste heat steam
CN202141309U (en) * 2011-06-07 2012-02-08 郑水成 Integration device of biomass fuel burning and residual-heat utilization
CN102345967A (en) * 2011-08-31 2012-02-08 南宁吉然糖业技术有限公司 Multi-level impulse bagasse drying system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5046265A (en) * 1989-12-04 1991-09-10 Kalb G William Method and system for reducing the moisture content of sub-bituminous coals and the like
CN101224358A (en) * 2007-01-18 2008-07-23 张大伟 Active carbocoal filtering adsorption material processing equipment
CN201068344Y (en) * 2007-06-22 2008-06-04 刘孝武 Petroleum coke breeze combustion transmission device for industrial furnace
CN201269688Y (en) * 2008-09-05 2009-07-08 常州市范群干燥设备有限公司 Explosion-proof drying machine
CN201500555U (en) * 2009-09-28 2010-06-09 西安建筑科技大学 Ultrafine powder preparation device
CN201529567U (en) * 2009-10-23 2010-07-21 河南理工大学 Permanent magnetic roll type magnetic separating apparatus
CN101915497A (en) * 2010-08-13 2010-12-15 辽宁中田干燥设备制造有限公司 Lignite-drying and quality-improving process for preparing superheated steam from waste heat steam
CN202141309U (en) * 2011-06-07 2012-02-08 郑水成 Integration device of biomass fuel burning and residual-heat utilization
CN102345967A (en) * 2011-08-31 2012-02-08 南宁吉然糖业技术有限公司 Multi-level impulse bagasse drying system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104315832A (en) * 2014-08-26 2015-01-28 江苏新沂沪千人造板制造有限公司 Device for recycling heat energy of boiler flue gas
CN104567335A (en) * 2015-01-27 2015-04-29 中国能源建设集团江苏省电力设计院有限公司 System and technological method for drying coal slime by high-temperature flue gas of power station
CN106766760A (en) * 2017-01-25 2017-05-31 九三粮油工业集团有限公司 A kind of bean dregs drying plant

Similar Documents

Publication Publication Date Title
CN101581532B (en) Multi-effect system and process for pre-drying lignite through overheated steam
CN102155744B (en) System for pre-drying coal with high water content by utilizing residual heat of boiler gas
CN203116491U (en) Lignite water take-out lignite efficient burning system
CN201748770U (en) Brown coal drying and quality-improving system
CN201964722U (en) Solar energy and air stove combined drying equipment
CN102476907B (en) Method of high-efficiency high-speed environmentally-friendly energy-saving sludge treatment system
CN102292459B (en) Method for producing pulverized coal
CN201836894U (en) Garbage incinerator
CN103673545B (en) Energy saving and environment friendly hot blast vegetable drying device
CN101216254B (en) Heating picking process for promoting cement kiln residual heat generating efficiency
CN102563659B (en) Refuse incineration power generation process and refuse incineration power generation equipment
CN103115478B (en) Drying equipment
CN101565263B (en) Sludge superheated vapor drying system of two-stage paddle dryer and drying process thereof
AU2009347547B2 (en) Multi-effect brown coal predrying system using superheated steam and process thereof
CN102954678B (en) Utilize method and the device thereof of biomass boiler flue gas drying biomass material
CN202470035U (en) Direct combustion biomass fuel boiler
CN101693843B (en) Coal steam rotating moisture control process system and method thereof
CN201974013U (en) PET (Polyethylene Terephthalate) bottle-flake hot-air circulating and continuous-drying system
CN102690035A (en) System and process for drying sludge using pulse combustion internal heating fluid bed
CN201581118U (en) Wet molybdenum concentrate drying and roasting system
CN102258923A (en) Method for recycling and reusing tail gas of calcium carbide furnace
CN102661666A (en) Tail gas utilization method and tail gas utilization system of rotary lime kiln
CN101975388B (en) Biomass boiler system capable of saving energy and reducing emission
CN205138078U (en) Energy -saving calcium base desulfurizer and desulfurized gypsum drying system
CN203478599U (en) Hot-blast stove for biomass particles

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120725