CN209333449U

CN209333449U - Cotton seed sulfuric acid lint desulfurating dust-removing equipment

Info

Publication number: CN209333449U
Application number: CN201822131738.8U
Authority: CN
Inventors: 马仁杰; 郭广; 马明銮; 陈强
Original assignee: HUANONG SEED MACHINERY MANUFACTURING Co Ltd SHIHEZI CITY
Current assignee: HUANONG SEED MACHINERY MANUFACTURING Co Ltd SHIHEZI CITY
Priority date: 2018-12-19
Filing date: 2018-12-19
Publication date: 2019-09-03
Anticipated expiration: 2028-12-19

Abstract

This application involves a kind of equipment of sulfuric acid suede desulfurization and dedusting more particularly to a kind of cotton seed sulfuric acid lint desulfurating dust-removing equipments；It includes between dedusting, the first air-introduced machine, pulse dust collector, the second air-introduced machine, spray column, sedimentation basin and chimney；The entrance that air exit between dedusting passes through the piping connection equipped with the first air-introduced machine to pulse dust collector；The gas access that the outlet of pulse dust collector passes through the piping connection equipped with the second air-introduced machine to spray column lower part.Due to implementing above-mentioned technical proposal, emission after cotton seed sulfuric acid lint is sent between dedusting by the application removes 0.5 μm of diameter or more of partial carbonization object, particle dust, 0.5 μm or less fine dusts are removed by pulse dust collector again, finally desulfurization is discharged in desulfurizing tower, and doctor solution can be recycled by settling tank；The serious problem of product pollution after cotton-seed ginning, protecting ecology, atmospheric environment are eliminated in the application desulfurization, high dust collection efficiency.

Description

Cotton seed sulfuric acid lint desulfurating dust-removing equipment

Technical field

This application involves a kind of equipment of sulfuric acid suede desulfurization and dedusting more particularly to a kind of cotton seed sulfuric acid lint desulfurization and dedusting to set It is standby.

Background technique

Coal-burning boiler desulfurization and dedusting is by the fine particle and dust and sulfur dioxide SO in flue gas₂, nitrogen oxides removes Go the discharge standard for reaching country or place.And cotton seed sulfuric acid lint is a high pollutive industries, primary pollution source is logical Partial carbonization object --- the sulfuric acid suede generated after persulfuric acid processing and drying.Contain a large amount of sulfur dioxide, discharge capacity in emission It is 5-8 times of plain cylindrical furnace (same to tonnage) discharge capacity, up to 10000-15000mg/m³.Nitrogen oxides discharge capacity is plain cylindrical furnace discharge capacity 3-5 times, it may be assumed that 5000-10000 mg/m³。

SO caused by cotton-seed ginning and plain cylindrical furnace₂Amount is different, because cotton-seed ginning is in addition to fire coal boiler fume The SO of generation₂Outside, it is removed after being heated by sulfuric acid and contains a large amount of sulfur dioxide and nitrogen oxides in the sulfuric acid suede to get off.Under During column formula can calculate separately out cotton-seed ginning, sulfur dioxide contained in (i.e. coal-burning boiler) and sulfuric acid suede in flue gas Total amount.

The SO that coal-burning boiler generates per hour₂Amount:

Mg/h=(Kg/h) × sulfur content (%) × 2 × coal consumption rate (%) × 106.In formula: mg/h --- it generates per hour SO₂Amount；(Kg/h) --- Coal-fired capacity (200kg) per hour；The sulfur content of coal is generally 1%；Combustion rate is generally 95-98%；

That is: 200 × 1% × 2 × 95% × 106=3.8 × 106mg/h.

The SO generated per hour in sulfuric acid suede₂Amount:

mg/h =( Kg/h) ×18%×14%×2×106.In formula: mg/h --- SO containing sulfur dioxide in sulfuric acid suede₂ Amount；Kg/h --- cotton seed sulfuric acid treatment amount 3000kg per hour；18% --- sulfur acid water mixed liquid ratio in cotton seed；14%—— Sulfuric acid concentration in sulfuric acid water mixed liquid；

That is: 3000 × 18% × 14% × 2 × 106=151.2 × 106 mg/h.

It can be learnt from above-mentioned calculating data: sulfur dioxide SO₂Discharge amount largely derive from sulfuric acid suede, because This only changes, optimization fuel band is far from being enough.According to the annual blowdown flow rate statistics of Seed processing factory, a year processing capacity The sulfuric acid suede that 3000 tons of medium-sized Seed processing factory generates every year reaches 300000 kilograms, this some of the contaminants a part is discharged into In atmosphere, a part polluted soil and water resource.Serious pollution is caused to ecology, atmosphere.

Summary of the invention

The purpose of the application is to propose a kind of elimination SO₂Dust pollution protects the cotton seed sulfuric acid lint desulfurization of environment to remove Dirt equipment.

The technical solution of the application is achieved in that cotton seed sulfuric acid lint desulfurating dust-removing equipment comprising between dedusting, One air-introduced machine, pulse dust collector, the second air-introduced machine, spray column, sedimentation basin and chimney；Air exit between dedusting passes through equipped with the The piping connection of one air-introduced machine to pulse dust collector entrance；The outlet of pulse dust collector passes through the pipeline equipped with the second air-introduced machine Be connected to the gas access of spray column lower part, spray tower bottom is connected with sedimentation basin, the outlet at the top of spray column by pipeline with Chimney is connected.

Further, spraying and dedusting room is equipped in dedusting, spraying and dedusting ceiling portion is communicated with decompression chamber, spraying and dedusting room Bottom is communicated with drain outlet；Spraying and dedusting chamber interior is equipped at least two and is intervally arranged cyclone dust collectors, spraying and dedusting room Spray head is installed at corresponding cyclone dust collectors top vent pipe top position.

Further, spraying and dedusting ceiling portion is connected to decompression chamber, outlet in the outlet passageway of inverted triangle shape by bottom Quantity and the cyclone dust collectors one-to-one correspondence and outlet passageway in channel are located at the surface of cyclone dust collectors top vent pipe；Spray Head corresponds to the two sides of the bottom for being distributed in each outlet passageway and is located at right above two side clearance of cyclone dust collectors.

Further, decompression chamber from the inside to the outside change from small to big by promoting menstruation；The external port of decompression chamber is by being equipped with the first air-introduced machine Piping connection to pulse dust collector entrance.

Further, screw feeder is installed in drain outlet；Pollution discharge pond is equipped with below the outlet of drain outlet.

Due to implementing above-mentioned technical proposal, the emission after cotton seed sulfuric acid lint is sent between dedusting and removes diameter by the application 0.5 μm or more of partial carbonization object, particle dust, then 0.5 μm or less fine dusts are removed by pulse dust collector, finally in desulfurization Desulfurization is discharged in tower, and doctor solution can be recycled by settling tank；The application desulfurization, high dust collection efficiency, after eliminating cotton-seed ginning The serious problem of product pollution, protecting ecology, atmospheric environment.

Detailed description of the invention

The specific structure of the application is provided by drawings and examples below:

Fig. 1 is the positive structure diagram of the application most preferred embodiment；

Fig. 2 is the overlooking structure diagram of the application most preferred embodiment.

Legend: between 1. dedustings, 2. first air-introduced machines, 3. pulse dust collectors, 4. second air-introduced machines, 5. spray columns, 6. precipitatings Pond, 7. chimneys, 8. spraying and dedusting rooms, 9. decompression chambers, 10. drain outlets, 11. cyclone dust collectors, 12. spray heads, 13. outlets are logical Road, 14. pollution discharge ponds, 15. alkaline fluids spray throwers, 16. water purification spray throwers, 17. precipitating pipelines, 18. sedimentation flues.

Specific embodiment

The application is not limited by following embodiments, can be determined according to the technical solution of the application and actual conditions specific Embodiment.

As shown in Figure 1, 2, cotton seed sulfuric acid lint desulfurating dust-removing equipment includes the 1, first air-introduced machine 2, pulse dust removal between dedusting Device 3, the second air-introduced machine 4, spray column 5, sedimentation basin 6 and chimney 7；1 air exit is by being equipped with the first air-introduced machine 2 between dedusting Piping connection to pulse dust collector 3 entrance；The outlet of pulse dust collector 3 is by being equipped with the piping connection of the second air-introduced machine 4 extremely The gas access of 5 lower part of spray column, 5 bottom of spray column are connected with sedimentation basin 6, and the outlet at 5 top of spray column passes through pipeline and cigarette Chimney 7 is connected.

As shown in Figure 1, 2, spraying and dedusting room 8 is equipped between dedusting in 1, is communicated with decompression chamber 9 at the top of spraying and dedusting room 8, is sprayed Leaching 8 bottom of dirt pocket is communicated with drain outlet 10；At least two are equipped with inside spraying and dedusting room 8 to be intervally arranged cyclone dust collectors 11, spraying and dedusting room 8 is equipped with spray head 12 at corresponding 11 top vent pipe top position of cyclone dust collectors.

Cyclone dust collectors 11 are one kind of dust-extraction unit；Dust removal mechanism is that dust-contained airflow is made to rotate, by means of from Grit is separated from air-flow and is trapped in wall by mental and physical efforts, then so that grit is fallen into ash bucket by gravity.Cyclone dust collectors 11 Top is exhaust pipe, and bottom is sewage draining exit.Pulse dust collector 3 has purification efficiency high, and processing gas ability is big, and performance is stablized, The advantages that life-span of the filter bag is long, easy to operate, and maintenance load is small.After gas rotating accelerates to flow into decompression chamber 9, flow velocity is fast, presses Power is big, is not easy to subsequent processing, and being depressured reduction of speed by decompression chamber 9 can enable the fine dusts in gas be easier to by pulse dust collector 3 It removes clean.Spray head 12 can spray downwards carbon water or buck.

In use, the emission after sulfuric acid lint is sent into cyclone dust collectors 11, and after Rotary dust collecting, 0.5 μm of diameter It is thin that above partial carbonization object, particle dust are directly discharged into 10,0.5 μm of drain outlet or less from 11 bottom blow-down mouth of cyclone dust collectors Small dust is sent out with air-flow from 11 top vent pipe of cyclone dust collectors upwards, is rinsed by spray head 12, a part of dust, two Sulfur oxide, nitrogen oxides are swept away, and remaining gas enters the decompression of decompression chamber 9, are drawn by the first air-introduced machine 2 and are sent into pulse dust collector 3,0.5 μm or less the fine dusts from 1 escape between dedusting are intercepted, efficiency of dust collection is up to 99% or more.The gas that dedusting finishes is by Two blowers introduce in desulfurizing tower, and the purification gas up to standard after desulfurization is discharged from chimney 7.

As shown in Figure 1, 2, decompression chamber is connected in the outlet passageway 13 of inverted triangle shape by bottom at the top of spraying and dedusting room 8 9, the quantity and cyclone dust collectors 11 of outlet passageway 13 correspond and outlet passageway 13 is located at 11 top vent of cyclone dust collectors The surface of pipe；Spray head 12 corresponds to the two sides of the bottom for being distributed in each outlet passageway 13 and is located at 11 two sides of cyclone dust collectors Right above gap.

The gas that 11 top vent pipe of cyclone dust collectors is discharged can be purified again, is wet by 12 one side of spray head Change；On the other hand it can avoid dust recycling, form secondary pollution.Spray head can be effectively increased in the outlet passageway 13 of inverted triangle shape 12 spray efficiency.

As shown in Figure 1, 2, decompression chamber 9 from the inside to the outside change from small to big by promoting menstruation；The external port of decompression chamber 9 equipped with first by drawing The piping connection of blower 2 to pulse dust collector 3 entrance.

As shown in Figure 1, 2, screw feeder is installed in drain outlet 10；Blowdown is equipped with below the outlet of drain outlet 10 Pond 14.

As shown in Figure 1, 2, the alkaline fluids spray thrower 15 that multilayer is connected with sedimentation basin 6, spray are equipped in the middle part of spray column 5 5 top of tower is equipped with the water purification spray thrower 16 that multilayer is connected with external water pipe；5 bottom of spray column, which is additionally provided with, to be connected with sedimentation basin 6 Precipitate pipeline 17；The outlet at 5 top of spray column is connected to chimney 7 by vertical sedimentation flue 18.

Desulfurizing tower is the circle tower made of carbon steel, glass reinforced plastic or quartz, and inside is equipped with several layers spray thrower and removes Day with fog.Sedimentation basin 6 is connected with desulfurizing agent feed-line, and mountable sensor in spray column 5 implements gas after monitoring spray effect PH value accomplish that desulfurization is thorough to adjust the conveying capacity of desulfurizing agent.Desulfurizing agent can be sodium hydroxide solution, de- using double alkali It is splendid that sulphur method carries out desulfurization effect, and overcomes the shortcomings that lime method is easy fouling, avoids calcium sulfite, calcium sulfate in tower Fouling in interior and pipeline influences system work.

The akaline liquid that gas is first sprayed with alkaline fluids spray thrower 15 in uphill process acts on, and continues to rise after desulfurization It acts on and washing with the clean water that water purification spray thrower 16 sprays, finally in the precipitating by sedimentation flue 18, it is ensured that be discharged from chimney 7 Be standard compliant purification gas.And dust, SO₂Gas, as the desulfurizing agent that spray thrower sprays falls together and by heavy Shallow lake pipeline 17 enters sedimentation basin 6, and after sedimentation basin 6 precipitates working process, desulfurizing agent passes through alkaline fluids spray thrower 15 again and follows Ring uses.

The desulfurization and dust-removal method carried out using the application, it is characterised in that include the following steps: the first step, by cotton seed sulfuric acid Utilize cyclone dust collectors 11 by 0.5 μm of diameter or more of partial carbonization object, particle dust in 1 between emission feeding dedusting after lint It removes, remaining gas is entering the decompression of decompression chamber 9 after the flushing of spray head 12, is drawn by the first air-introduced machine 2；Second step, will The gas that first blower is drawn is sent into pulse dust collector 3, intercepts 0.5 μm or less the fine dusts from 1 escape between dedusting；By place Gas after reason is drawn by the second blower；Third step, the gas that the second blower is drawn are sent into desulfurizing tower, and gas is from bottom to top The sweetening liq sprayed by spray thrower, the SO in gas₂Settling tank is drained into doctor solution sedimentation tower bottom, is reached by purified Standard gas body is sent to the discharge of chimney 7.

The above technical characteristic constitutes the most preferred embodiment of the application, with stronger adaptability and best implementation effect Fruit can increase and decrease inessential technical characteristic according to actual needs, to meet the needs of different situations.

Claims

1. a kind of cotton seed sulfuric acid lint desulfurating dust-removing equipment, it is characterised in that: including between dedusting, the first air-introduced machine, pulse dust removal Device, the second air-introduced machine, spray column, sedimentation basin and chimney；Air exit between dedusting is connected by the pipeline equipped with the first air-introduced machine It is connected to the entrance of pulse dust collector；The outlet of pulse dust collector passes through the piping connection equipped with the second air-introduced machine to spray column lower part Gas access, spray tower bottom is connected with sedimentation basin, and the outlet at the top of spray column is connected by pipeline with chimney.

2. cotton seed sulfuric acid lint desulfurating dust-removing equipment according to claim 1, it is characterised in that: be equipped with spray in dedusting Dirt pocket, spraying and dedusting ceiling portion are communicated with decompression chamber, and spraying and dedusting room bottom is communicated with drain outlet；Spraying and dedusting chamber interior It is equipped at least two to be intervally arranged cyclone dust collectors, spraying and dedusting room corresponds at cyclone dust collectors top vent pipe top position Spray head is installed.

3. cotton seed sulfuric acid lint desulfurating dust-removing equipment according to claim 2, it is characterised in that: spraying and dedusting ceiling portion is logical It crosses bottom and is connected to decompression chamber in the outlet passageway of inverted triangle shape, the quantity and cyclone dust collectors of outlet passageway correspond and goes out Gas channel is located at the surface of cyclone dust collectors top vent pipe；The corresponding two sides of the bottom for being distributed in each outlet passageway of spray head And it is located at right above two side clearance of cyclone dust collectors.

4. cotton seed sulfuric acid lint desulfurating dust-removing equipment according to claim 2 or 3, it is characterised in that: decompression chamber by it is interior extremely Outer promoting menstruation is changed from small to big；The entrance that the external port of decompression chamber passes through the piping connection equipped with the first air-introduced machine to pulse dust collector.

5. cotton seed sulfuric acid lint desulfurating dust-removing equipment according to claim 2 or 3, it is characterised in that: pacify in drain outlet Equipped with screw feeder；Pollution discharge pond is equipped with below the outlet of drain outlet.

6. cotton seed sulfuric acid lint desulfurating dust-removing equipment according to claim 1 or 2 or 3, it is characterised in that: in the middle part of spray column Equipped with the alkaline fluids spray thrower that multilayer is connected with sedimentation basin, spray column top is equipped with the water purification that multilayer is connected with external water pipe Spray thrower；Spray tower bottom is additionally provided with the precipitating pipeline being connected with sedimentation basin；Outlet at the top of spray column passes through vertical sedimentation Flue is connected to chimney.