CN102654283B - Cyclone combustion system for coal slag powder - Google Patents

Cyclone combustion system for coal slag powder Download PDF

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Publication number
CN102654283B
CN102654283B CN201210034438.2A CN201210034438A CN102654283B CN 102654283 B CN102654283 B CN 102654283B CN 201210034438 A CN201210034438 A CN 201210034438A CN 102654283 B CN102654283 B CN 102654283B
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China
Prior art keywords
powder
air
cinder
chuck
coal slag
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Expired - Fee Related
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CN201210034438.2A
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Chinese (zh)
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CN102654283A (en
Inventor
刘效洲
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Canaan energy-conserving and environment-protective Science and Technology Ltd. of Zhongshan city
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Guangdong University of Technology
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Publication of CN102654283B publication Critical patent/CN102654283B/en
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Abstract

The invention discloses a cyclone combustion system for coal slag powder. The cyclone combustion system comprises a combustion cylinder, a coal slag powder combustor, a feeding device and a pulverizing mechanism, wherein the coal slag powder combustor is mounted at the combustion cylinder; the feeding device is connected with the coal slag powder combustor through a feeding pipe; and the pulverizing mechanism is connected with the feeding device so as to supply powder fuel to the feeding device. The cyclone combustion system for the coal slag powder has the following beneficial effects: 1, the pulverizing is carried out by recycling high-temperature emitted flue gas of a boiler, and materials, such as coal slag, can be effectively dried during pulverizing; 2, the operating cost is low, the waste high-temperature exhausted flue gas is utilized, the waste is changed into the valuable, and the generation of other energy consumption is reduced; 3, the environmental protection performance is good, most of heating and drying links are omitted, and the emission of other pollutants is reduced while the efficiency is increased; and 4, heat outside the cyclone combustion cylinder is fully used for heating air for combustion, so that the combustion can be more full, the waste heat is fully circulated and recycled, and the effect of changing waste into the valuable is achieved.

Description

Cinder braize vortex burning system
Technical field
The invention belongs to field of combustion technology, particularly a kind of cinder braize vortex burning system.
Background technology
China is energy resource consumption big country, and in the wastage in bulk or weight of the national energy, coal occupies very large proportion, reaches more than 75%.In Industrial Boiler, still adopt in a large number grate furnace at present, grate furnace burns lump coal (bituminous coal), and broken coal, particularly anchracite duff cannot burn.Cause like this environmental pollution to increase the weight of, and along with the rising of coal price, burning cost is also more and more higher.
The coal-fired cinder of discharging of thermal power plant, industry and civil boiler and other equipment, although impurity is many, also has very high burning and is worth, and will cause serious energy waste if abandoned like this.Therefore cinder and coal mixer mill are made to powder, can make full use of and economize on resources.But cinder powder is relatively difficult to burning, burning-point is higher, and general burner is difficult to directly fully burn.
Summary of the invention
The object of the invention is the deficiency existing for the above prior art, provide a kind of simple in structure, sufficient combustion and can effectively utilize the cinder braize vortex burning system of residual heat of exhaust flue gas.
The present invention is achieved in that cinder braize vortex burning system, comprise combustion barrel, be installed on cinder powder burner, charging gear and the powder process mechanism of described combustion barrel, described charging gear is connected with described cinder pulverized coal dregs powder burner by feed pipe, and described powder process mechanism and described charging gear are connected to charging gear provides powder fuel.
Described combustion barrel lateral wall is provided with the first chuck that is hermetic seal state space with described combustion barrel lateral wall, on described the first chuck, is provided with air intake, is provided with air delivery pipe and is connected with the tangent air inlet of described combustion barrel on described the first chuck.
Described cinder powder burner lateral wall is provided with the second chuck that is hermetic seal state space with described cinder powder burner lateral wall, described the second chuck communicates with described combustion barrel top air inlet, and described air delivery pipe is provided with branch line and is connected and communicates with described the second chuck.
Described powder process mechanism comprises fuel pulverizing plant and separation of air from dust device, the air intake vent of described fuel pulverizing plant is connected with boiler exhaust flue by air-heater, the powder outlet of described fuel pulverizing plant is connected with described separation of air from dust device by conveyance conduit, and the powder delivery outlet of described separation of air from dust device is connected with filler bin.Discharge flue gas by boiler up to nearly 260 DEG C directly causes in fuel pulverizing plant and mixes with cinder etc., and limit oven dry limit powder process can be dried fuel such as cinders like this in powder process, makes full use of discarded discharge flue gas, reaches the object turning waste into wealth.
Between described fuel pulverizing plant and separation of air from dust device, be provided with drier, couple together by carrier pipe, be further dried for powder fuels such as the cinder powder to after pulverizing.
The gas discharge outlet of described separation of air from dust device is connected with deduster, and deduster is connected with chimney by pipeline.
In described cinder powder burner, be provided with powder spray gun, the nozzle middle part of described powder spray gun is provided with the cone for disperseing biomass powder, and biomass powder is ejected uniformly around cone, catch fire and be more prone to, and burning is more abundant.
Described powder spray gun is connected with metering device by carrier pipe, for the controlled biomass powder fuel that quantitatively provides.
Described metering device connects and comprises hopper, dosing mechanism and air compressor, described hopper is installed on the material inlet place of described dosing mechanism, the material outlet of described dosing mechanism is connected with described carrier pipe, and one end of described carrier pipe is connected with described air compressor.
Described air compressor is connected by wind conveying pipe with described the first chuck, and the air intake of air compressor is the hot-air that adds in described the first chuck.
Described dosing mechanism can be screw(-type) feeder.Described combustion barrel can be cyclone firing cylinder, on the sidewall of described cyclone firing cylinder top, is provided with at least one tangent air inlet.
The present invention has following beneficial effect: 1. recycle boiler high temperature discharge flue gas and carry out powder process, can effectively be dried in powder process materials such as cinders; 2. operating cost is low: utilize discarded high temperature discharge flue gas, reach and turn waste into wealth, reduce the generation of other energy consumptions; 3. environmental protection is good: reduced most of heat drying link, when raising the efficiency, also reduced the discharge of other pollutant; 4. make full use of heat outside cyclone firing cylinder, for heating the air for burning, make burning more abundant, and the abundant discarded cinder of recycling boiler, turn waste into wealth, be typical recycling economy.
Brief description of the drawings
Fig. 1 is the structural representation of cinder braize vortex burning system of the present invention;
Fig. 2 is feeding structure schematic diagram in cinder braize vortex burning system of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail.
Cinder braize vortex burning system, as shown in Figure 1, comprise combustion barrel 1, be installed on cinder powder burner 24, charging gear and the powder process mechanism of described combustion barrel, described charging gear is connected with described cinder pulverized coal dregs powder burner 24 by feed pipe 21, and described powder process mechanism and described charging gear are connected to charging gear provides powder fuel.Described powder process mechanism is Novel integral negative-pressure ejecting powder process packing auger structure, as it comprises fuel pulverizing plant 8 and separation of air from dust device 10, the air intake vent of described fuel pulverizing plant 8 is connected with the exhaust uptake of boiler 5 by air-heater 6, the powder outlet of described fuel pulverizing plant 8 is connected with described separation of air from dust device 10 by conveyance conduit 9, and the powder delivery outlet of described separation of air from dust device 10 is connected with filler bin 14.What boiler 5 was discharged by reference directly mixes powder process with cinder etc. up to nearly 260 DEG C of discharge flue gases to fuel pulverizing plant 8, can in powder process, be dried fuel such as cinders like this, makes full use of discarded discharge flue gas, reaches the object turning waste into wealth.On carrier pipe between powder delivery outlet and the filler bin 14 of described separation of air from dust device 10, be provided with flapper 12.Described filler bin 14 is connected with hopper 16 by impeller blanking device 15.Described fuel pulverizing plant 8 is provided with material inlet, on described material inlet, feed hopper is installed, so that add the mixture of cinder and coal.Between described fuel pulverizing plant 8 and separation of air from dust device 10, be provided with drier 17, couple together by carrier pipe 9, be further dried for powder fuels such as the cinder powder to after pulverizing.Between described fuel pulverizing plant 8 and drier 17, be provided with high pressure positive blower 18, for delivery of the powder-gas mixture of described fuel pulverizing plant 8 material outlets, make the powder outlet of fuel pulverizing plant in negative pressure state, be beneficial to powder gas and carry.The gas discharge outlet of described separation of air from dust device 10 is connected with deduster 11, and deduster 11 is connected with chimney 13 by pipeline, and toxic emission is gone out.Described fuel pulverizing plant can be fan mill.Described blower fan can be roots blower.Described boiler 5 is connected with cyclone firing cylinder 1 by secondary furnace 4, and described cyclone firing cylinder 1 is provided with tangent air inlet 2 and slag-drip opening 3.
In described cinder powder burner, be provided with cinder powder spray gun, the nozzle middle part of described cinder powder spray gun is provided with the cone for disperseing cinder powder, makes cinder powder around cone, be equably divergent shape and ejects, and catch fire and be more prone to, and burning is more abundant.Described cone can be the nozzle middle part that is fixedly welded on described cinder powder spray gun.Described cinder powder spray gun is connected with metering device by carrier pipe 21, for the controlled cinder powder fuel that quantitatively provides.Described metering device connects and comprises hopper 16, dosing mechanism and air compressor 19, described hopper 16 is installed on the material inlet place of described dosing mechanism 20, the material outlet of described dosing mechanism 20 is connected with described carrier pipe 21, and one end of described carrier pipe 21 is connected with described air compressor 19.Described dosing mechanism 20 can be screw(-type) feeder, and its one end is provided with motor, for driving feeding screw rod, carries out feed.
As shown in Figure 2, described combustion barrel 1 lateral wall is provided with the first chuck 22 that is hermetic seal state space with described combustion barrel 1 lateral wall, on described the first chuck 22, be provided with air intake 26, on described the first chuck 22, be provided with air delivery pipe 25 and be connected with the tangent air inlet 2 of described combustion barrel.Described cinder powder burner 24 lateral walls are provided with the second chuck 23 that is hermetic seal state space with described cinder powder burner 24 lateral walls, described the second chuck 23 communicates with described combustion barrel 1 top air inlet, and described air delivery pipe is provided with branch line and is connected and communicates with described the second chuck 23.Between described air delivery pipe 25 and tangent air inlet 2, be provided with the first control valve, for controlling tangential intake.Between described air delivery pipe 25 and the second chuck 23, be provided with the second control valve, for controlling intake.Described combustion barrel 8 can be cyclone firing cylinder, can be vertical or horizontal setting.Described combustion barrel 1 can be cyclone firing cylinder.
Described air compressor 19 is connected by wind conveying pipe 27 with described the first chuck 22, and the air intake of air compressor 19 is the hot-air that adds in described the first chuck 22.
Above-mentioned embodiment is not limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also should belong to category of the present invention, and scope of patent protection of the present invention should be limited by each claim.

Claims (4)

1. cinder braize vortex burning system, comprise combustion barrel, be installed on cinder powder burner, charging gear and the powder process mechanism of described combustion barrel, it is characterized in that: described charging gear is connected with described cinder powder burner by feed pipe, and described powder process mechanism and described charging gear are connected to charging gear provides powder fuel; Described combustion barrel lateral wall is provided with the first chuck that is hermetic seal state space with described combustion barrel lateral wall, on described the first chuck, is provided with air intake, is provided with air delivery pipe and is connected with the tangent air inlet of described combustion barrel on described the first chuck; Described cinder powder burner lateral wall is provided with the second chuck that is hermetic seal state space with described cinder powder burner lateral wall, described the second chuck communicates with described combustion barrel top air inlet, and described air delivery pipe is provided with branch line and is connected and communicates with described the second chuck; Described powder process mechanism comprises fuel pulverizing plant and separation of air from dust device, the air intake vent of described fuel pulverizing plant is connected with boiler exhaust flue by air-heater, the powder outlet of described fuel pulverizing plant is connected with described separation of air from dust device by conveyance conduit, and the powder delivery outlet of described separation of air from dust device is connected with filler bin; Between described fuel pulverizing plant and separation of air from dust device, be provided with drier; Between described fuel pulverizing plant and drier, be provided with high pressure positive blower, for delivery of the powder-gas mixture of described fuel pulverizing plant material outlet, make the powder outlet of fuel pulverizing plant in negative pressure state; The gas discharge outlet of described separation of air from dust device is connected with deduster, and deduster is connected with chimney by pipeline.
2. according to cinder braize vortex burning system claimed in claim 1, it is characterized in that: in described cinder powder burner, be provided with powder spray gun, the nozzle middle part of described powder spray gun is provided with the cone for disperseing biomass powder.
3. according to cinder braize vortex burning system claimed in claim 1, it is characterized in that: described powder spray gun is connected with metering device by carrier pipe, for the controlled biomass powder fuel that quantitatively provides; Described metering device connects and comprises hopper, dosing mechanism and air compressor, described hopper is installed on the material inlet place of described dosing mechanism, the material outlet of described dosing mechanism is connected with described carrier pipe, and one end of described carrier pipe is connected with described air compressor.
4. according to cinder braize vortex burning system claimed in claim 3, it is characterized in that: described air compressor is connected by wind conveying pipe with described the first chuck, the air intake of air compressor is the hot-air that adds in described the first chuck.
CN201210034438.2A 2012-02-15 2012-02-15 Cyclone combustion system for coal slag powder Expired - Fee Related CN102654283B (en)

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CN102654283B true CN102654283B (en) 2014-09-24

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104421954A (en) * 2013-11-22 2015-03-18 柳州市润澄针织有限公司 Boiler
CN106322424B (en) * 2016-04-08 2019-01-25 上海理工大学 Volute air-inlet furnace cigarette mixing chamber and the boiler using brown coal including it

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS582509A (en) * 1981-06-26 1983-01-08 Hitachi Ltd Combustion method of pulverized coal
JPH07113509A (en) * 1993-08-27 1995-05-02 Nippon Furnace Kogyo Kaisha Ltd Heat accumulation type low nox burner
JP2002243110A (en) * 2001-02-19 2002-08-28 Hitachi Ltd Pulverized coal boiler
CN201488507U (en) * 2009-07-29 2010-05-26 刘效洲 Energy-saving hot air drying system used in ceramics factory
CN201488267U (en) * 2009-09-03 2010-05-26 兰州泰得燃烧设备工程有限公司 Hot blast stove

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS582509A (en) * 1981-06-26 1983-01-08 Hitachi Ltd Combustion method of pulverized coal
JPH07113509A (en) * 1993-08-27 1995-05-02 Nippon Furnace Kogyo Kaisha Ltd Heat accumulation type low nox burner
JP2002243110A (en) * 2001-02-19 2002-08-28 Hitachi Ltd Pulverized coal boiler
CN201488507U (en) * 2009-07-29 2010-05-26 刘效洲 Energy-saving hot air drying system used in ceramics factory
CN201488267U (en) * 2009-09-03 2010-05-26 兰州泰得燃烧设备工程有限公司 Hot blast stove

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Patentee after: Canaan energy-conserving and environment-protective Science and Technology Ltd. of Zhongshan city

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