CN101837239B - System for dehydration of acid mist dust of plaster and dust removal and desulfurization of fluidized bed furnace by baking by using residual heat - Google Patents
System for dehydration of acid mist dust of plaster and dust removal and desulfurization of fluidized bed furnace by baking by using residual heat Download PDFInfo
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- CN101837239B CN101837239B CN2010101348235A CN201010134823A CN101837239B CN 101837239 B CN101837239 B CN 101837239B CN 2010101348235 A CN2010101348235 A CN 2010101348235A CN 201010134823 A CN201010134823 A CN 201010134823A CN 101837239 B CN101837239 B CN 101837239B
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- dust
- fluidized bed
- bed furnace
- settling compartment
- acid mist
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Treating Waste Gases (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a system for the dehydration of acid mist dust of plaster and the dust removal and desulfurization of fluidized bed furnace by baking by using residual heat. The system consists of an air inlet pipe, a dust settling chamber, an exhaust pipe, a valve, an auger, a dust-settling bucket at the tail of the fluidized bed boiler, a double cyclone dust collector, a secondary cyclone dust collector, a draught fan, a water film desulphurization device, a chimney, and a scraper conveyor and is characterized in that the dust settling chamber is arranged at the top of the fluidized bed boiler; the moisture of the dusty airflow through the dust settling chamber is evaporated on a stainless steel plate of the dust settling chamber under the action of the residual heat; dry powder slides into the auger at the bottom from the stainless steel plate of the dust settling chamber to be output from the dust settling chamber for recycling; the air inlet pipe of the dust settling chamber is connected with a burner hood of a drier; an air outlet pipe is connected with the dust-settling bucket of an induced duct of the fluidized bed boiler; and the clean air at the tail of the dust settling chamber is sucked into a dust-removal system at the tail of the fluidized bed boiler by using the suction force of the draught fan and then discharged from the chimney. The system of the invention solves the problem of environmental pollution caused by the direct discharge of sulfur-bearing gas and water-bearing acid mist dusts during production of plaster powder, can recycle a large amount of plaster dusts and is suitable for plaster powder manufacturing enterprises.
Description
Technical field
Patent of the present invention relates to a kind ofly to be utilized waste heat to bake acid mist dirt and reaches the dehydration of acid mist dirt, depositing dust, recycling and fluidized bed furnace dedusting and dust removal with desulfurization by water film system, belongs to environmental technology field.
Background technology
As everyone knows, a large amount of sulfurous gas and acid mist dirt are arranged directly to airborne release in the land plaster process, this sulfurous gas and acid mist dirt are quite large to the destruction of trees, vegetation, and not even a blade of grass grows in place of arrival; And have a large amount of land plasters to drop to the chimney surrounding to count on the soil in kilometer range or on building, destroy local ecological environment, have a strong impact on local resident's production, life and healthy, although relevant department and manufacturer have taked a lot of measures, but still have at present many land plasters producer still to have the problems referred to above, tracing it to its cause is also there is no a set of equipment that can thoroughly solve sulfurous gas and acid mist dirt at present.
Summary of the invention
Directly to airborne release sulfurous gas and acid mist dirt, to destroy local ecological environment in order to solve in existing land plaster process, have a strong impact on local resident's production, life and healthy problem, the invention provides a kind of profit utilizes waste heat to bake gypsum dehydration acid mist dirt and fluidized bed furnace dusting and desulfuring system, with eliminate or while alleviating land plaster on the pollution of ecological environment, on the impact of people's productive life, and recycle a large amount of land plasters, reduce production costs.
[0004] for solving its technical problem, the technical solution used in the present invention is: design a set of air inlet pipe that comprises, dust-settling compartment, blast pipe and valve, auger, fluidized bed furnace afterbody depositing dust bucket, double-cyclone dust collector, second cyclone dust extractor, air-introduced machine, moisture film desulfurizer and chimney, the waste heat that utilizes of drag conveyor bakes gypsum dehydration acid mist dirt and fluidized bed furnace dusting and desulfuring system, described dust-settling compartment is arranged on the fluidized bed furnace top, be provided with a plurality of stainless steel separators in dust-settling compartment, the bottom of dust-settling compartment is provided with the auger of major axis, utilize the waste heat of fluidized bed furnace to act on a plurality of stainless steel separators in dust-settling compartment, to evaporate by the moisture in the dust-contained airflow of dust-settling compartment, dry powder slides into output dust-settling compartment recycling in the auger of bottom from the corrosion resistant plate of dust-settling compartment, the air inlet pipe of dust-settling compartment is connected with the kiln head cover of dryer, and tail gas and fluidized bed furnace flue gas that the dust-settling compartment escape pipe is discharged are compiled in dust hopper, utilize air-introduced machine suction by dust-settling compartment afterbody pure qi (oxygen) inspiration fluidized bed furnace afterbody dust pelletizing system, then through chimney discharged to atmosphere in.The escape pipe of dust-settling compartment is provided with the valve of controlling flow, and the size of valve opening is with drying machine kiln hood junction surface gas excessive being as the criterion not;
[0005] compared with prior art, the present invention has following characteristics and progress:
[0006] 1, solved sulfurous gas and the direct problem that causes environmental pollution of discharging of aqueous acids spray dust in the land plaster process, be conducive to national energy-saving and reduce discharging implementing of policy, be conducive to ecological environment and be not damaged.
[0007] 2, UTILIZATION OF VESIDUAL HEAT IN, save the energy.Fluidized bed furnace is in dryer gypsum dehydration process, and top has a large amount of waste heats to distribute, and utilizes the waste heat roasting to examine acid cloud and is dewatered, and waste heat has obtained good utilization.
[0008] 3, dust recycling.A land plaster factory that produces 30000 tons per year, annual recyclable 200-300 ton land plaster, can save the production cost of ten thousand yuan of 5-7.
[0009] 4, the deduster energy consumption is low.Each system needs only a U150 auger, and this auger only needs 1.5KW-2.2KW motor, and the system airflow operation needs only the fluidized bed furnace air-introduced machine of a 11KW, so system operation cost is extremely low.
[0010] 5, save the labour.As long as debug, operation needs the workman to operate hardly.
[0011] [accompanying drawing explanation] below in conjunction with the drawings and specific embodiments, the present invention is further described
[0012] Fig. 1 is dust-settling compartment structural representation of the present invention,
[0013] Fig. 2 is overall structure schematic diagram of the present invention,
[0014] in figure: 1, gypsum dehydration acid mist dirt air inlet pipe, 2, dust-settling compartment, 3, dust-settling compartment demarcation strip, 4, steam brick, 5 alumina silicate heat-preservation cotton, 6, the China fir plate, 7, escape pipe, 8, fluidized bed furnace, 9, auger (conveying worm), 10, row's dust pipe, 11, double-cyclone dust collector, 12, escape pipe valve, 13, fluidized bed furnace afterbody depositing dust bucket, 14, second cyclone dust extractor, 15, air-introduced machine, 16, water dedusting devulcanizer, 17, chimney, 18, dust hopper, 19, relay valve, 20, drag conveyor.
[0015] [specific embodiment] is with reference to accompanying drawing: a kind of waste heat that utilizes bakes gypsum dehydration acid mist dirt and fluidized bed furnace dusting and desulfuring system, bag is mainly by air inlet pipe 1, dust-settling compartment 2, escape pipe 7, escape pipe valve 12, auger 9, fluidized bed furnace afterbody depositing dust bucket 13, double-cyclone dust collector 11, second cyclone dust extractor 14, air-introduced machine 15, moisture film desulfurizer 16 and chimney 17, drag conveyor 20 forms, dust-settling compartment 2 is arranged on the top of boiling body of heater 8, the body of heater exterior wall is increased to two meters, be beneficial to insulation, by U150 type auger 9(conveying worm) be arranged in the middle of furnace roof, the auger length long 0.5-0.6m of body of heater that seethes with excitement, one end of auger is connected with motor, the other end is provided with row's dust pipe 10, in order to discharge dust.∠ 40 angle steel weldering grids for auger top, the two sides angle is 60 degree, high 1.7m, oblique wide 1.95m, the corrosion resistant plate staking is on the grid of ∠ 40 angle steel welding.In dust-settling compartment, it is the elongated skewed slot, be divided into four chambers with three trapezoidal dividing plates in this skewed slot, each chamber width is 1.4 ~ 1.6 m, and dividing plate is welded into trapezoidal with angle bar, and the riveting thickness corrosion resistant plate that is 0.6mm ~ 0.8mm, dividing plate has two kinds of upper ventilation and lower ventilations, when Inlet Manifold Design during at upper air, a gas outlet, Room under, two gas outlet, Room are upper, three gas outlet, Room under, four gas outlets, Room are upper, last gas outlet, chamber must be upper; The top of dust-settling compartment covers tightly with the China fir plate, and 25 ~ 35 millimeters of the thickness of China fir plate are paved with the steam brick after pad one deck alumina silicate heat-preservation cotton on the China fir plate.Tail gas and fluidized bed furnace flue gas that dust-settling compartment is discharged are compiled in dust hopper 18, and most of dust is just fallen into dust hopper, by relay valve 19 automatic removing dusts to drag conveyor 20.Drag conveyor is installed to outside workshop by the fluidized bed furnace bottom always, ashes is delivered to ash material with pneumatic transporting and process field.Mist after turning is upwards entered in cyclone deduster 11 in parallel through pipeline by dust hopper, the air-flow basal area of passing through due to cyclone deduster in parallel doubles, wind speed lowers, won a good depositing dust time, 80% dust is down into the bottom of this deduster thus, and by relay valve, automatically discharged in drag conveyor 20, the double-cyclone dust collector intended diameter is 1.2m, height 4.2m, cross air quantity and be 6000 to 8000m
3/ h; The top 11 of double-cyclone dust collector is communicated with second cyclone dust extractor 14 air inlet pipe, and gas enters second cyclone dust extractor depositing dust again, has again 15% left and right flue dust to be lowered, and the relay valve bottom deduster is automatically discharged in scrapper conveyor; Second cyclone dust extractor 14 is designed to diameter design 1.4m, height 4.8m-5.2m, and crossing air quantity is 10000-20000m
3/ h.The top of secondary whirlwind is connected with air-introduced machine 15 by pipeline, the exhaust air rate 8000m of this air-introduced machine
3/ h-10000m
3/ h, blast is 5000-7000KPa, the flow velocity that now contains the mist of a small amount of flue gas increases rapidly, blast increases, the outlet of air-introduced machine is connected with water dedusting devulcanizer 16 by pipeline, gas blows in moisture film depositing dust desulfurizer, hydrogen sulfide content after water is taken a shower, sulfur dioxide, the pernicious gases such as carbon dioxide are adsorbed with water, with the Purge gas of water smoke through chimney 17 discharged to atmosphere, water quality in moisture film simplified wet FGD device for reducing dust is acid can constantly be increased, standby soda ash, quick lime adds in pond and neutralizes, adjust acid-base value, with the test of PH test paper, be neutral, can outwards discharge.
Claims (2)
1. one kind is utilized waste heat to bake gypsum dehydration acid mist dirt and fluidized bed furnace dusting and desulfuring system, by air inlet pipe, dust-settling compartment, blast pipe and valve, auger, fluidized bed furnace afterbody depositing dust bucket, double-cyclone dust collector, second cyclone dust extractor, air-introduced machine, moisture film desulfurizer and chimney, drag conveyor forms, it is characterized in that: described dust-settling compartment is arranged on the fluidized bed furnace top, be provided with a plurality of stainless steel separators in dust-settling compartment, the bottom of dust-settling compartment is provided with the auger of major axis, utilize the waste heat of fluidized bed furnace to act on a plurality of stainless steel separators in dust-settling compartment, to evaporate by the moisture in the dust-contained airflow of dust-settling compartment, dry powder slides into output dust-settling compartment recycling in the auger of bottom from the corrosion resistant plate of dust-settling compartment, the air inlet pipe of dust-settling compartment is connected with the kiln head cover of dryer, and tail gas and fluidized bed furnace flue gas that the dust-settling compartment escape pipe is discharged are compiled in dust hopper, utilize air-introduced machine suction by dust-settling compartment afterbody pure qi (oxygen) inspiration fluidized bed furnace afterbody dust pelletizing system, then through chimney discharged to atmosphere in.
2. utilize according to claim 1 waste heat to bake gypsum dehydration acid mist dirt and fluidized bed furnace dusting and desulfuring system, it is characterized in that: in dust-settling compartment, be the elongated skewed slot, be divided into four chambers with three trapezoidal dividing plates in this skewed slot, each chamber width is 1.4 ~ 1.6 m, dividing plate is welded into trapezoidal with angle bar, and the riveting thickness corrosion resistant plate that is 0.6mm ~ 0.8mm, dividing plate has two kinds of upper ventilation and lower ventilations, when Inlet Manifold Design during at upper air, one gas outlet, Room under, two gas outlets, Room are upper, three gas outlets, Room under, four gas outlet, Room are upper, and last gas outlet, chamber must be upper; The top of dust-settling compartment covers tightly with the China fir plate, and 25 ~ 35 millimeters of the thickness of China fir plate are paved with the steam brick after pad one deck alumina silicate heat-preservation cotton on the China fir plate.
3. utilize according to claim 1 waste heat to bake gypsum dehydration acid mist dirt and fluidized bed furnace dusting and desulfuring system, it is characterized in that the escape pipe of dust-settling compartment is provided with the valve of controlling flow, this valve can be regulated the size of aperture.
4. utilize according to claim 1 waste heat to bake gypsum dehydration acid mist dirt and fluidized bed furnace dusting and desulfuring system, it is characterized in that: tail gas and fluidized bed furnace fume pipe that dust-settling compartment is discharged are parallel in escape pipe, the lower end of escape pipe is provided with relay valve, give vent to anger mouth of pipe below is provided with drag conveyor, and drag conveyor is installed to ash material outside workshop by the fluidized bed furnace bottom always and processes.
5. utilize according to claim 1 waste heat to bake gypsum dehydration acid mist dirt and fluidized bed furnace dusting and desulfuring system, it is characterized in that: the diameter of double-cyclone dust collector is 1.2m, height 4.2m, and crossing air quantity is 6000 ~ 8000m
3/ h; The top of double-cyclone dust collector is provided with tracheae with the top of second cyclone dust extractor and is communicated with, and two deduster bottoms are equipped with relay valve, and the below of relay valve is provided with scrapper conveyor.
6. utilize according to claim 1 waste heat to bake gypsum dehydration acid mist dirt and fluidized bed furnace dusting and desulfuring system, it is characterized in that: the diameter of second cyclone dust extractor is 1.3 ~ 1.5m, height 4.8m ~ 5.2m, and crossing air quantity is 10000 ~ 20000m
3/ h, the top of secondary whirlwind is connected with air-introduced machine by pipeline, and this enters the exhaust air rate 8000m of air-introduced machine
3~ 10000m
3, blast is 5000 ~ 7000KPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101348235A CN101837239B (en) | 2010-03-25 | 2010-03-25 | System for dehydration of acid mist dust of plaster and dust removal and desulfurization of fluidized bed furnace by baking by using residual heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101348235A CN101837239B (en) | 2010-03-25 | 2010-03-25 | System for dehydration of acid mist dust of plaster and dust removal and desulfurization of fluidized bed furnace by baking by using residual heat |
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| Publication Number | Publication Date |
|---|---|
| CN101837239A CN101837239A (en) | 2010-09-22 |
| CN101837239B true CN101837239B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101348235A Expired - Fee Related CN101837239B (en) | 2010-03-25 | 2010-03-25 | System for dehydration of acid mist dust of plaster and dust removal and desulfurization of fluidized bed furnace by baking by using residual heat |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550127B (en) * | 2015-01-19 | 2017-10-17 | 郑州晨航机电科技有限公司 | Novel environment friendly particle, granular material surface cleaning system |
| CN104791806B (en) * | 2015-04-22 | 2017-03-08 | 福建龙岩尔彬农业发展有限责任公司 | A kind of dedusting deodorization incinerator |
| CN105731843A (en) * | 2016-01-23 | 2016-07-06 | 澧县方石坪镇杨朴矿山机械厂 | Dustless production method of building gypsum powder |
| CN110038369A (en) * | 2019-04-28 | 2019-07-23 | 镇江江南化工有限公司 | A kind of method that eddy flow combination ultrafiltration membrane removes ultra tiny droplet in industrial gasses |
| CN113952817A (en) * | 2020-07-15 | 2022-01-21 | 桃源县平安机械设备制造有限公司 | Multistage adjustable dust removal equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2176818Y (en) * | 1992-07-13 | 1994-09-14 | 陈洪俊 | Dusting device |
| CN2230615Y (en) * | 1995-07-28 | 1996-07-10 | 魏忠武 | Wet desulfurizing and dust collecting apparatus |
| CN2283513Y (en) * | 1996-08-30 | 1998-06-10 | 卜秋芝 | Adsorption boiler dust remover |
| CN2496541Y (en) * | 2001-08-23 | 2002-06-26 | 东北大学 | Dust-precipitating and desulfurizing integration apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1057743A (en) * | 1996-08-14 | 1998-03-03 | Mitsubishi Heavy Ind Ltd | Dust removing device |
| JPH10314623A (en) * | 1997-05-15 | 1998-12-02 | Ishikawajima Harima Heavy Ind Co Ltd | Cyclone dust collector and circulating fluidized bed boiler using same |
-
2010
- 2010-03-25 CN CN2010101348235A patent/CN101837239B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2176818Y (en) * | 1992-07-13 | 1994-09-14 | 陈洪俊 | Dusting device |
| CN2230615Y (en) * | 1995-07-28 | 1996-07-10 | 魏忠武 | Wet desulfurizing and dust collecting apparatus |
| CN2283513Y (en) * | 1996-08-30 | 1998-06-10 | 卜秋芝 | Adsorption boiler dust remover |
| CN2496541Y (en) * | 2001-08-23 | 2002-06-26 | 东北大学 | Dust-precipitating and desulfurizing integration apparatus |
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|---|---|
| CN101837239A (en) | 2010-09-22 |
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Granted publication date: 20130605 Termination date: 20140325 |