CN201658941U - Desulfurization system for removing acid mist dust and dust in fludized bed furnace by using waste heat to bake gypsum - Google Patents
Desulfurization system for removing acid mist dust and dust in fludized bed furnace by using waste heat to bake gypsum Download PDFInfo
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- CN201658941U CN201658941U CN2010201441117U CN201020144111U CN201658941U CN 201658941 U CN201658941 U CN 201658941U CN 2010201441117 U CN2010201441117 U CN 2010201441117U CN 201020144111 U CN201020144111 U CN 201020144111U CN 201658941 U CN201658941 U CN 201658941U
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- dust
- bed furnace
- settling compartment
- fluidized bed
- 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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Abstract
The utility model relates to a desulfurization system for removing acid mist dust and dust in fludized bed furnace by using waste heat to bake gypsum, which comprises an air inlet pipe, a dust-settling compartment, an exhaust pipe, a valve, a screw conveyer, a dust-settling hopper at the tail part of a fluidized bed furnace, a double-cyclone dust collector, a secondary cyclone dust collector, a draught fan, a water film desulfurization device, a chimney and a scraper conveyer. The desulfurization system is characterized in that the dust-settling compartment is arranged on the top of the fluidized bed furnace, water in a dust-containing airflow passing through the dust-settling compartment is evaporated by using the waste heat to act on a stainless steel plate of the dust-settling compartment, and dry powder slides into the screw conveyer at the bottom from the stainless steel plate of the dust-settling compartment to be discharged from the dust-settling compartment for recycling. The air inlet pipe in the dust-settling compartment is connected with a kiln head cover of a dryer, an air outlet pipe is connected with the dust-settling hopper of an air draught pipe of the fluidized bed furnace, and clean air in the tail part of the dust-settling compartment is absorbed into the dedusting system at the tail part of the fluidized bed furnace by using the suction force of the draught fan and then exhausted from the chimney. The system solves the problem of environmental pollution caused by direct emission of sulfurous gas and water-containing acid mist dust in the production process of the gypsum, can recycle a large amount of gypsum dust and is suitable to production enterprises of gypsum powder.
Description
[technical field] the utility model patent 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] is well-known, a large amount of sulfurous gas and acid mist dirt is arranged directly to airborne release in the land plaster production process, and this sulfurous gas and acid mist dirt are quite big to the destruction of trees, vegetation, and not even a blade of grass grows in the place of arrival; And there is a large amount of land plasters to drop to around the chimney on the soil in the number kilometer range or on the building, destroy local ecological environment, have a strong impact on local resident's production, life and healthy, though relevant department and manufacturer have taked a lot of measures, but still have many land plasters manufacturer still to have the problems referred to above at present, tracing it to its cause is also not have a cover can thoroughly solve the equipment of sulfurous gas and acid mist dirt at present.
[summary of the invention] directly will destroy local ecological environment to airborne release sulfurous gas and acid mist dirt in order to solve in the existing land plaster production process, have a strong impact on local resident's production, life and healthy problem, the utility model provides a kind of profit to utilize waste heat to bake gypsum dehydration acid mist dirt and fluidized bed furnace dusting and desulfuring system, with eliminate or when alleviating land plaster and producing to the pollution of ecological environment, to the influence of people's productive life, and recycle a large amount of land plasters, reduce production costs.
For solving its technical problem, the technical solution adopted in the utility model is: this system is mainly 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 is formed, its feature is: 1, described dust-settling compartment is installed in the fluidized bed furnace top, in the dust-settling compartment is the elongated skewed slot, be divided into four chambers with three trapezoidal dividing plates in this skewed slot, the width of each chamber is 1.4～1.6m, dividing plate has the ventilation of going up and ventilates two kinds down, the China fir flaggy is stamped at the top of dust-settling compartment, 25～35 millimeters of the thickness of China fir flaggy, on the China fir flaggy, be lined with alumina silicate heat-preservation cotton layer, be stamped steam brick layer above the alumina silicate heat-preservation cotton layer, the bottom of dust-settling compartment is provided with the auger of major axis, and the output of auger is provided with drainage conduit; The air inlet pipe of dust-settling compartment is connected with the kiln hood cover of dryer, and the escape pipe of dust-settling compartment is connected with the induced duct depositing dust bucket of fluidized bed furnace.
2, the blast pipe of dust-settling compartment is provided with the valve of control flow, and the aperture size of this valve can be regulated.
3, the tail gas and the fluidized bed furnace fume pipe of dust-settling compartment discharge are parallel in the blast pipe, and the lower end of blast pipe is provided with relay valve, and the exhaust pipe mouth below is provided with drag conveyor.
4, the diameter of double-cyclone dust collector is 1.1～103m, height 4.1～403m, 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 the deduster bottom is provided with relay valve, and the below of relay valve is provided with the scraper plate machine.
5, 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 links to each other with air-introduced machine by pipeline, and this goes into the exhaust air rate 8000m of air-introduced machine
3～10000m
3, blast is 5000～7000KPa,
Compared with prior art, the utility model has following characteristics and progress:
1, solved in the land plaster production process sulfurous gas and aqueous acids spray dust directly discharging cause environmental pollution problems, help implementing of national energy-saving and emission-reduction policy, help ecological environment and be not damaged.
2, UTILIZATION OF VESIDUAL HEAT IN, energy savings, fluidized bed furnace is in dryer gypsum dehydration process, and the top has a large amount of waste heats to distribute, and utilizes the waste heat roasting to examine acid cloud and dewaters, and waste heat has obtained good utilization.
3, dust recycling.A land plaster factory that produces 30000 tons per year, annual recyclable 200-300 ton land plaster can be saved the production cost of ten thousand yuan of 5-7.
4, the deduster energy consumption is low, and each system needs only a U150 auger, and this auger only needs the 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.
5, save the labour, as long as debug, operation needs the workman to operate hardly.
[description of drawings] further specifies the utility model below in conjunction with the drawings and specific embodiments
Fig. 1 is a dust-settling compartment structural representation of the present utility model,
Fig. 2 is an overall structure schematic diagram of the present utility model,
Among the figure: 1, gypsum dehydration acid mist dirt air inlet pipe, 2, dust-settling compartment, 3, dust-settling compartment demarcation strip, 4, steam brick, 5, the alumina silicate heat-preservation cotton, 6, China fir plate, 7, blast pipe, 8, fluidized bed furnace, 9, auger (conveying worm), 10, row's dust pipe, 11, double-cyclone dust collector, 12, exhaust valve, 13, fluidized bed furnace afterbody depositing dust bucket, 14, second cyclone dust extractor, 15, air-introduced machine, 16, the dust removal with desulfurization by water film device, 17, chimney, 18, dust hopper, 19, relay valve, 20, drag conveyor.
[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, blast pipe 7, exhaust 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 is formed, dust-settling compartment 2 is installed in the top of boiling body of heater 8, the body of heater exterior wall is increased two meters, be beneficial to insulation, U150 type auger 9 (conveying worm) is installed in the middle of the 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.Auger top is 60 degree with ∠ 40 angle steel weldering grid, two sides angle, high 1.7m, and oblique wide 1.95m, the corrosion resistant plate staking is on the grid of ∠ 40 angle steel welding.In the dust-settling compartment is the elongated skewed slot, be divided into four chambers with three trapezoidal dust-settling compartment demarcation strips 3 in this skewed slot, each chamber width is about 1.5m, dividing plate is welded into trapezoidal with angle bar, riveting corrosion resistant plate (thickness 0.6mm-0.8mm), dividing plate has ventilation of going up and two kinds of ventilations down, and when Inlet Manifold Design during in last air inlet, gas outlet, a Room is following; Gas outlet, two Room is last; Gas outlet, three Room is following; Gas outlet, four Room is last, and last gas outlet, chamber must be last.The flow direction of air-flow is a undaform, can increase gas channel length and increases and the corrosion resistant plate contact area.The top of dust-settling compartment 2 covers completely with China fir plate 6,30 millimeters of the thickness of China fir plate, and pad one deck alumina silicate heat-preservation cotton 5 on the China fir plate, the top of China fir plate paved with steam brick 4, and dust-settling compartment is close and not tight, and favourable steam distributes.Tail gas and fluidized bed furnace flue gas that dust-settling compartment is discharged are compiled in the 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 the workshop by the fluidized bed furnace bottom always, ashes is delivered to the ash material with strength handles the field.Mist after turning is upwards entered in the bispin wind deduster 11 in parallel through pipeline by dust hopper, because the air-flow basal area multiplication that bispin wind deduster in parallel is passed through, wind speed lowers, won a good depositing dust time, 80% dust is down into the bottom of this deduster thus, and row is in drag conveyor 20 automatically by relay valve, and the double-cyclone dust collector intended diameter is 1.2m, height 4.2m crosses air quantity and is 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 once more, has 15% left and right sides flue dust to be lowered again, and is arranged in the scraper plate machine automatically by the relay valve of deduster bottom; 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 links to each other 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 contain the mist of a small amount of flue gas this moment increases rapidly, blast increases, the outlet of air-introduced machine links to each other with dust removal with desulfurization by water film device 16 by pipeline, gas blows in the moisture film depositing dust desulfurizer, hydrogen sulfide content after water is taken a shower, sulfur dioxide, pernicious gases such as carbon dioxide are adsorbed with water, the Purge gas of band water smoke is arranged to atmosphere through chimney 17, water quality in the simple and easy wet desulphurization device for reducing dust of moisture film is acid can constantly to be increased, and is equipped with soda ash, the quick lime adding neutralizes in the pond, adjusts acid-base value, with the test of PH test paper is neutral, can outwards discharge.
Claims (5)
1. one kind is utilized waste heat to bake gypsum dehydration acid mist dirt and fluidized bed furnace dusting and desulfuring system, mainly 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 is formed, it is characterized in that: described dust-settling compartment is installed in the fluidized bed furnace top, in the dust-settling compartment is the elongated skewed slot, be divided into four chambers with three trapezoidal dividing plates in this skewed slot, the width of each chamber is 1.4～1.6m, dividing plate has the ventilation of going up and ventilates two kinds down, the China fir flaggy is stamped at the top of dust-settling compartment, 25～35 millimeters of the thickness of China fir flaggy, on the China fir flaggy, be lined with alumina silicate heat-preservation cotton layer, be stamped steam brick layer above the alumina silicate heat-preservation cotton layer, the bottom of dust-settling compartment is provided with the auger of major axis, and the output of auger is provided with drainage conduit; The air inlet pipe of dust-settling compartment is connected with the kiln hood cover of dryer, and the escape pipe of dust-settling compartment is connected with the induced duct depositing dust bucket of fluidized bed furnace.
2. bake gypsum dehydration acid mist dirt and fluidized bed furnace dusting and desulfuring system according to the described waste heat that utilizes of claim 1, it is characterized in that: the blast pipe of dust-settling compartment is provided with the valve of control flow, and the aperture size of this valve can be regulated.
3. bake gypsum dehydration acid mist dirt and fluidized bed furnace dusting and desulfuring system according to claim 1 or the 2 described waste heats that utilize, it is characterized in that: tail gas and fluidized bed furnace fume pipe that dust-settling compartment is discharged are parallel in the blast pipe, the lower end of blast pipe is provided with relay valve, and the exhaust pipe mouth below is provided with drag conveyor.
4. bake gypsum dehydration acid mist dirt and fluidized bed furnace dusting and desulfuring system according to the described waste heat that utilizes of claim 1, it is characterized in that: the diameter of double-cyclone dust collector is 1.1～103m, height 4.1～403m, 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 the deduster bottom is provided with relay valve, and the below of relay valve is provided with the scraper plate machine.
5. bake gypsum dehydration acid mist dirt and fluidized bed furnace dusting and desulfuring system according to the described waste heat that utilizes of claim 1, 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 links to each other with air-introduced machine by pipeline, and this exhaust air rate of going into air-introduced machine is 8000m
3～10000m
3, blast is 5000～7000KPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201441117U CN201658941U (en) | 2010-03-25 | 2010-03-25 | Desulfurization system for removing acid mist dust and dust in fludized bed furnace by using waste heat to bake gypsum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201441117U CN201658941U (en) | 2010-03-25 | 2010-03-25 | Desulfurization system for removing acid mist dust and dust in fludized bed furnace by using waste heat to bake gypsum |
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| Publication Number | Publication Date |
|---|---|
| CN201658941U true CN201658941U (en) | 2010-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201441117U Expired - Fee Related CN201658941U (en) | 2010-03-25 | 2010-03-25 | Desulfurization system for removing acid mist dust and dust in fludized bed furnace by using waste heat to bake gypsum |
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|---|---|
| CN (1) | CN201658941U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109011997A (en) * | 2018-09-14 | 2018-12-18 | 杨朴 | A kind of calcium sulphate dihydrate is dehydrated the processing method of acid cloud |
-
2010
- 2010-03-25 CN CN2010201441117U patent/CN201658941U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109011997A (en) * | 2018-09-14 | 2018-12-18 | 杨朴 | A kind of calcium sulphate dihydrate is dehydrated the processing method of acid cloud |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20130325 |