CN108786436A - A kind of middle-size and small-size industrial furnace emission-control equipment - Google Patents
A kind of middle-size and small-size industrial furnace emission-control equipment Download PDFInfo
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- CN108786436A CN108786436A CN201810714258.6A CN201810714258A CN108786436A CN 108786436 A CN108786436 A CN 108786436A CN 201810714258 A CN201810714258 A CN 201810714258A CN 108786436 A CN108786436 A CN 108786436A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1425—Regeneration of liquid absorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
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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
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Abstract
A kind of middle-size and small-size industrial furnace emission-control equipment, including exhaust-gas treatment tank, sedimentation basin, reduction pond, stripping pond and clear water reserviors；Exhaust-gas treatment tank is followed successively by cleaning dust area, fluidization regions, biological adsorption area, demister, activated carbon area and exhaust fan bottom-up；Exhaust gas wash is equipped in cleaning dust area, including tap water spray thrower, waste water catchment cone tank, air inlet pipe and gas distribution pipe；Fluidization regions are equipped with fluidisation liquid spray thrower, fluidized packing material, fluidisation liquid storage slot and storage slot and fluidize liquid delivery pipe；Demister is baffle plate demister or overflowing board demister；It includes mixed zone and settling zone to restore pond；Stripping pond includes stripping area and Disengagement zone；Clear water reserviors are equipped with clear water reserviors water inlet pipe and clear water reserviors outlet pipe.
Description
Technical field
The present invention relates to technical field of atmospheric pollution control, especially a kind of middle-size and small-size industrial furnace emission-control equipment.
Background technology
Industrial boilers in China has a large capacity and a wide range, and the generally existing type of furnace is old, it is relatively low to use coal poor quality, exhaust gas temperature, pollution
The features such as load fluctuation is larger, management level is poor, causes the application of current main-stream gas denitrifying technology to be restricted.Due to pot
N0 in kiln gasXThe overwhelming majority is the NO of indissoluble, and generally use oxidizing process, complexometry, reduction method increase NOx in practical application
Solubility.Currently, oxidizing process combination wet denitration technology application relative maturity, but oxidation cost is higher, while Oxygen in Liquid agent
Use can give rear end wastewater treatment increase difficulty.The absorbent used in complexometry combination wet denitration technology is easily by flue gas oxygen
Change, regeneration cost is higher, its industrial applications is caused to be restricted.Often by NOx gas phases in reduction method combination wet denitration technology
Oxidation is combined with liquid-phase reduction absorption, and higher removal efficiency may be implemented.The existing middle-size and small-size industry using above-mentioned technology
There is the problems such as technical equipment is complicated, cumbersome, processing cost is high mostly in stove emission-control equipment.
Meanwhile it is less to the high concentration denitration wastewater concern generated during wet denitration at present, common high concentration is de-
The physical treatment process of nitre waste water can only be by the NO in denitration wastewater2 -It is shifted or is concentrated, fail to realize its harmless treatment.It is raw
Wastewater treatment time of object facture is longer, floor space is larger, and microorganism is difficult to adapt to the larger industry of load fluctuation
Scene.In contrast, it the advantages that chemical reduction method adaptable strong, stable water outlet, can at normal temperatures realize to NO2 -Height
Effect removal, product are harmless N2And sulfate, there is wider prospects for commercial application.
Invention content
The technical problem to be solved by the present invention is to：Overcome prior art device is complicated, cumbersome, processing cost compared with
High problem provides a kind of middle-size and small-size industrial furnace emission-control equipment, and various middle-size and small-size industrial furnace exhaust gas can be effectively treated,
It is simple in structure, it is easy to operate.
The technical solution adopted by the present invention to solve the technical problems is：A kind of middle-size and small-size industrial furnace exhaust-gas treatment dress
It sets, including exhaust-gas treatment tank, sedimentation basin, reduction pond, stripping pond and clear water reserviors.
The exhaust-gas treatment tank be followed successively by bottom-up cleaning dust area, fluidization regions, biological adsorption area, demister,
Activated carbon area and exhaust fan.
The cleaning dust area is located at the lowest part of exhaust-gas treatment tank；Exhaust gas is equipped in the cleaning dust area to wash
Component, the exhaust gas wash include that superposed tap water spray thrower, the waste water positioned at lower part catchment cone tank, are given up
The water cone tank that catchments connects sedimentation basin with pipeline by discharge of wastewater valve, and the waste water of sedimentation basin enters the market through precipitation process heel row up to standard
Political affairs sewage network；Cleaning dust area middle and lower part is equipped with air inlet pipe and gas distribution pipe；Tap water spray thrower connects tap water inlet pipe.
The fluidization regions are equipped with fluidization components, and the fluidization components include superposed fluidisation liquid spray thrower, position
Fluidized packing material in middle part, the storage slot of the fluidisation liquid positioned at lower part and storage slot fluidize liquid delivery pipe.The fluidized packing material is by nothing
Machine inert material is made, and using hollow ball or other polyhedron-shaped, exhaust gas is blown into from fluidization regions lower part, and fluidized packing material is in stream
Change state.Fluidized packing material lower part is equipped with support plate with holes, and the aperture of support plate is less than the size of fluidized packing material.
The fluidisation liquid is sodium sulfite solution.
The biological adsorption area is equipped with adsorption stuffing, and the adsorption stuffing is by dried activated sludge, feces of livestock and poultry, wood
Bits, activated carbon and multi-panel hollow plastic ball by volume 3:1:10:2:20 are mixed.
The biological adsorption area top is equipped with demister, and demister is to be collected the big drop in gas, and make
Return, reduce the moisture in gas, operation principle is that gas enters demister, by a series of bends, is discharged from top,
And water droplet is due to the effect of its quality and kinetic energy, when by racetrack portion, straight line falls, and collides the surface of demister, and
It rebounds under to gravity.
The demister top is equipped with activated carbon area, and activated carbon is arranged in the activated carbon area, and activated carbon requires tool
There are hole prosperity, large specific surface area, adsorption rate fast, anti-friction, resistance to flushing, such as passes through the operation of long period, hair
Existing activated carbon becomes sticky, and gas velocity just needs to replace activated carbon in time when reducing.
Specifically, the exhaust-gas treatment tank centre is cylindrical, upper and lower ends are conical tank body, offered on tank body
Observation port and maintenance replacement port, tank body volume size according to pending gas flow number depending on, using vertical vertical placement.
For ease of the clean gas discharge handled, it is equipped at the conical tank body of the exhaust-gas treatment tank topmost
Exhaust fan.
Further, the fluidization components be also equipped be arranged on the outside of fluidization regions will fluidisation liquid pump enter to fluidize liquid spray
The fluidisation liquid circulating pump and fluidisation liquid adder of device, the fluidisation liquid adder include fluidisation flow container and fluidisation flow container stirring
Device, fluidisation liquid adder are connected to fluidisation liquid circulating pump by pipeline with valve.
Further match with cylindrical tank container, the cross section of the fluidisation liquid storage slot is circle, fluidisation
Liquid, which stores, is equipped with fluidisation liquid collector above slot, it is most upper that the lower end diameter for fluidizing liquid collector is less than fluidisation liquid storage slot
The diameter in portion.Fluidisation liquid collector makes the aggregation of fluidisation liquid be back to fluidisation liquid storage slot.
Further, the tap water spray thrower, fluidisation liquid spray thrower are helical form spray thrower；The liquid ejected is in
Existing mist, and mixing together between water mist, do not stay dead angle, are conducive to the contact area for expanding exhaust gas and solution, improve absorptivity
And assimilation effect.
Further preferred equipment, demister are baffle plate demister or overflowing board demister.
The reduction pond includes mixed zone and settling zone, and mixed zone bottom is equipped with reduction pond water inlet pipe, the water inlet of reduction pond
The storage slot that pipe connects exhaust-gas treatment tank fluidizes liquid delivery pipe, and mixed zone middle and upper part is equipped with reducing agent adder, in mixed zone
Portion is provided with mixed zone blender；In the settling zone be equipped with baffle, the baffle with reduction pond inner wall formed as waste water into
Enter the waste water runner of settling zone, the exit of settling zone is equipped with reduction pond three phase separator, and the outlet top of settling zone is equipped with also
Former pond overfalling weir, reduction pond overfalling weir connection reduction pond outlet pipe, settling zone bottom is designed to pyramidal structure, in settling zone bottom
It is provided with reduction pond drain valve.The reducing agent of reducing agent adder addition is sulfamic acid solution.Mixed zone middle and upper part is equipped with pH
It is worth adjuster.
The stripping pond includes stripping area and Disengagement zone, and stripping area bottom is provided with aeration plate, the aeration plate
Top is equipped with stripping pond water distribution branch pipe, the stripping pond water distribution branch pipe connection stripping pond water inlet pipe, the connection of stripping pond water inlet pipe
Restore pond outlet pipe；The aeration plate is connected with the air blower outside stripping pond by aeration tube, be equipped in the Disengagement zone every
The inner wall of plate, the partition board and sedimentation basin forms the waste water runner for entering Disengagement zone as waste water, and the exit of Disengagement zone, which is equipped with, blows
The outlet top of de- pond three phase separator, Disengagement zone is equipped with stripping pond overfalling weir, and Disengagement zone bottom is designed to pyramidal structure, is dividing
Area bottom is provided with stripping pond drain valve.Stripping pond overfalling weir connection stripping pond outlet pipe.Stripping pond is equipped with conical upper cover,
The top of conical upper cover is equipped with gas collecting tube.
The clear water reserviors are equipped with clear water reserviors water inlet pipe and clear water reserviors outlet pipe, and clear water reserviors water inlet pipe is connected to the water outlet of stripping pond
Pipe, clear water reserviors outlet pipe connection fluidisation liquid circulating pump.
The beneficial effects of the invention are as follows：
1. exhaust gas initially enters in cleaning dust area, tap water is sprayed from uniformly distributed tap water spray thrower, is formed countless thin
Small droplet, after being sufficiently mixed contact with exhaust gas, the substances such as dust in exhaust gas are absorbed in tap water；Exhaust gas ascends into stream
Change area, the huge surface area of fluidized packing material forms huge liquid film area, and the nitrogen oxides in exhaust gas is fluidized liquid absorption, then
Fluidisation liquid stream enters in the fluidisation liquid storage slot of lower part；Exhaust gas ascends into biological adsorption area, and exhaust gas is by micro- life in adsorption stuffing
Object adsorbs and biochemical reaction occurs；Subsequently into demister, the drop in gas is blocked gas herein；Then gas
Into activated carbon area, the substance and drop that are mingled in gas are intercepted absorb herein, and so far exhaust gas is processed into clean
Net gas realizes qualified discharge.
2. fluidizing the fluidisation liquid waste water in liquid storage slot by storing slot fluidisation liquid delivery pipe and reduction pond water inlet pipe to enter
Pond is restored, is mixed with reducing agent, pH value adjuster adjusts the pH value of waste water, is stirred using mixed zone blender；In waste water
Nitrogen oxides be reduced into nitrogen, the waste water after reduction reaction enters settling zone, and the reduction pond three phase separator of settling zone is real
Now it is separated by solid-liquid separation；Solids sinks to the lower part of settling zone under gravity, passes through the reduction pond drain valve discharge of bottom；
Waste water enters stripping pond water inlet pipe by restoring pond overfalling weir and reduction pond outlet pipe.
3. waste water enters the middle and lower part in stripping pond by stripping pond water inlet pipe and stripping pond water distribution branch pipe；Positioned at stripping pond
Aeration plate below water distribution branch pipe generates a large amount of tiny bubbles, and the nitrogen that the reduction reaction in waste water is generated blows out the water surface, blows
Waste water after de- enters Disengagement zone, and stripping pond three phase separator, which is realized, to be separated by solid-liquid separation；Solids is sunk under gravity
The lower part of Disengagement zone passes through the stripping pond drain valve discharge of bottom；Waste water is entered by stripping pond overfalling weir, stripping pond outlet pipe
Clear water reserviors.
4. the water outlet of clear water reserviors enters fluidisation liquid circulating pump by clear water reserviors outlet pipe, recycle.
5. reduction pond drain valve and stripping pond drain valve discharge sediment it is concentrated, dehydration after transport outward.
The exhaust-gas treatment jar structure of the present invention is simple, and easily fabricated, easy to operate, operating cost is low, can be effectively treated each
The middle-size and small-size industrial furnace exhaust gas of kind.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of the exhaust-gas treatment tank of the embodiment of the present invention；Fig. 2 is reduction of embodiment of the present invention pond
Structural schematic diagram；Fig. 3 is the structural schematic diagram in stripping of embodiment of the present invention pond.
In Fig. 1, Fig. 2, Fig. 3：1. cleaning dust area, 1-1. tap water spray throwers, 1-2. waste water catchments cone tank, and 1-3. is useless
Water discharging valve, 1-4. air inlet pipe, 1-5. gas distribution pipes, 1-6. tap water inlet pipes, 2. fluidization regions, 2-1. fluidize liquid spray thrower, 2-
2. fluidized packing material, 2-3. fluidizes liquid and stores slot, and 2-4. fluidizes liquid circulating pump, and 2-5. fluidizes liquid adder, and 2-6. fluidizes liquid aggregation
Device, 3. biological adsorption areas, 3-1. adsorption stuffings, 4. demisters, 5. activated carbon areas, 6. exhaust fans, 7. reduction ponds, 7-1. mixing
Area, the settling zones 7-2., 7-3. restore pond water inlet pipe, 7-4. reducing agent adders, the mixed zones 7-5. blender, 7-6. baffles, 7-
7. restoring pond three phase separator, 7-8. restores pond overfalling weir, and 7-9. restores pond drain valve, 7-10.pH value adjusters, 8. strippings
Pond, 8-1. strippings area, the Disengagement zone 8-2., 8-3. aeration plates, 8-4. strippings pond water distribution branch pipe, 8-5. strippings pond water inlet pipe, 8-6.
Air blower, 8-7. partition boards, 8-8. strippings pond three phase separator, 8-9. strippings pond overfalling weir, 8-10. strippings pond drain valve, 8-11.
Stripping pond upper cover, 8-12. gas collecting tubes, 9. clear water reserviors.
Specific implementation mode
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant to the invention.
Embodiment
A kind of middle-size and small-size industrial furnace emission-control equipment of the present invention as shown in Figures 1 to 3, including exhaust-gas treatment tank,
Sedimentation basin, reduction pond 7, stripping pond 8 and clear water reserviors 9.
The exhaust-gas treatment tank is followed successively by cleaning dust area 1, fluidization regions 2, biological adsorption area 3, demisting bottom-up
Device 4, activated carbon area 5 and exhaust fan 6.
The cleaning dust area 1 is located at the lowest part of exhaust-gas treatment tank；It is washed equipped with exhaust gas in the cleaning dust area
Wash component, the exhaust gas wash includes that superposed tap water spray thrower 1-1, the waste water positioned at lower part catchment taper
Slot 1-2, the waste water cone tank 1-2 that catchments connect sedimentation basin with pipeline by discharge of wastewater valve 1-3, the wastewater sedimentation processing of sedimentation basin
Heel row up to standard enters municipal sewage pipe network；1 middle and lower part of cleaning dust area is equipped with air inlet pipe 1-4 and gas distribution pipe 1-5；Tap water spray thrower
1-1 connection tap water inlet pipes 1-6.
The fluidization regions 2 are equipped with fluidization components, and the fluidization components include superposed fluidisation liquid spray thrower 2-
1, the fluidisation liquid storage slot 2-3 positioned at the fluidized packing material 2-2 at middle part, positioned at lower part and and storage slot fluidisation liquid delivery pipe.It is described
Fluidized packing material is made of inorganic inert material, and using hollow ball or other polyhedron-shaped, exhaust gas is blown into from fluidization regions lower part, stream
Change filler and is in fluidized state.The lower parts fluidized packing material 2-2 are equipped with support plate with holes, and the aperture of support plate is less than fluidized packing material 2-
2 size.
The fluidisation liquid is sodium sulfite solution.
The biological adsorption area 3 is equipped with adsorption stuffing 3-1, and the adsorption stuffing 3-1 is by dried activated sludge, animal dung
Just, sawdust, activated carbon and multi-panel hollow plastic ball by volume 3:1:10:2:20 are mixed.
The biological adsorption area top be equipped with demister 4, demister 4 be the big drop in gas is collected, and
It is allowed to return, reduces the moisture in gas, operation principle is that gas enters demister 4, by a series of bends, is arranged from top
Go out, and water droplet is due to the effect of its quality and kinetic energy, when by racetrack portion, straight line falls, and collides the surface of demister 4,
And to rebounding under gravity.
4 top of demister is equipped with activated carbon area 5, and activated carbon, activated carbon requirement are arranged in the activated carbon area 5
Have many advantages, such as hole prosperity, large specific surface area, adsorption rate fast, anti-friction, resistance to flushing, such as pass through the operation of long period,
It was found that activated carbon becomes sticky, gas velocity just needs to replace activated carbon in time when reducing.
The exhaust-gas treatment tank centre is cylindrical, upper and lower ends are conical tank body, and sight is offered on the tank body
Survey mouth and maintenance replacement port, tank body volume size according to pending gas flow number depending on, using vertical vertical placement.
For ease of the clean gas discharge handled, it is equipped at the conical tank body of the exhaust-gas treatment tank topmost
Exhaust fan 6.
Further, the fluidization components be also equipped be arranged on the outside of fluidization regions will fluidisation liquid pump enter to fluidize liquid spray
The fluidisation liquid circulating pump 2-4 and fluidisation liquid adder 2-5, the fluidisation liquid adder 2-5 of device include fluidisation flow container and fluidisation
Flow container blender, fluidisation liquid adder 2-5 are connected to fluidisation liquid circulating pump 2-4 by pipeline with valve.
Further match with cylindrical tank container, the cross section of the fluidisation liquid storage slot 2-3 is circle, stream
Change and be equipped with fluidisation liquid collector 2-6 above liquid storage slot 2-3, the lower end diameter of the fluidisation liquid collector 2-6 is less than fluidisation
Liquid stores the diameter of slot 2-3 topmosts.Fluidisation liquid collector 2-6 makes the aggregation of fluidisation liquid be back to fluidisation liquid storage slot 2-3.
Further, the tap water spray thrower 1-1, fluidisation liquid spray thrower 2-1 are helical form spray thrower；It ejects
Mist, and mixing together between water mist is presented in liquid, does not stay dead angle, is conducive to the contact area for expanding exhaust gas and liquid, improves
Absorptivity and assimilation effect.
Further preferred equipment, demister 4 are baffle plate demister.
For ease of overhaul of the equipments and equipment rotation, the exhaust-gas treatment tank, which has, is arranged in parallel spare each other or work simultaneously
Two sets made, the air inlet pipe of two sets of exhaust-gas treatment tanks is connected to gas sampling transport system, two sets of exhaust gas with valve by pipeline
The waste gas outlet of process tank is connected to exhaust tube by pipeline with valve, can be realized and be switched by valve, when exhausted air quantity is big two
Complete equipment is run simultaneously.
The reduction pond 7 includes mixed zone 7-1 and settling zone 7-2, and the mixed zone bottoms 7-1 are equipped with reduction pond water inlet pipe 7-
3, the storage slot of reduction pond water inlet pipe 7-3 connection exhaust-gas treatment tanks fluidizes liquid delivery pipe, and mixed zone middle and upper part adds equipped with reducing agent
Add device 7-4, mixed zone blender 7-5 is provided in the middle part of mixed zone；In the settling zone be equipped with baffle 7-6, the baffle with also
The inner wall in former pond forms the waste water runner for entering settling zone as waste water, and the exit of settling zone is equipped with reduction pond three phase separator
The outlet top of 7-7, settling zone are equipped with reduction pond overfalling weir 7-8, and reduction pond overfalling weir 7-8 connections restore pond outlet pipe, precipitation
Area bottom is designed to pyramidal structure, and settling zone bottom is provided with reduction pond drain valve 7-9.The 7-4 additions of reducing agent adder
Reducing agent is sulfamic acid solution.Mixed zone middle and upper part is equipped with pH value adjuster 7-10.
The stripping pond 8 includes stripping area 8-1 and Disengagement zone 8-2, and the stripping area bottoms 8-1 are provided with aeration plate 8-3, institute
The top for the aeration plate stated is equipped with stripping pond water distribution branch pipe 8-4, the stripping pond water distribution branch pipe 8-4 connection strippings pond water inlet pipe
8-5, the water inlet pipe 8-5 connections of stripping pond restore pond outlet pipe；The aeration plate 8-3 is connected with by aeration tube outside stripping pond
Air blower 8-6, is equipped with partition board 8-7 in the Disengagement zone, and the inner wall of the partition board and sedimentation basin, which is formed as waste water, enters Disengagement zone
Waste water runner, the exit of Disengagement zone is equipped with stripping pond three phase separator 8-8, and it is excessive that the outlet top of Disengagement zone is equipped with stripping pond
Mill weir 8-9, Disengagement zone bottom are designed to pyramidal structure, and Disengagement zone bottom is provided with stripping pond drain valve 8-10.It overflows in stripping pond
Mill weir 8-9 connection strippings pond outlet pipe.Stripping pond is equipped with conical upper cover 8-11, and the top of conical upper cover is equipped with gas collecting tube 8-
12。
The clear water reserviors 9 are equipped with clear water reserviors water inlet pipe and clear water reserviors outlet pipe, and clear water reserviors water inlet pipe connection stripping pond goes out
Water pipe, clear water reserviors outlet pipe connection fluidisation liquid circulating pump 2-4.
The process that middle-size and small-size industrial furnace emission-control equipment using the present invention is operated is：
1. exhaust gas initially enters in cleaning dust area 1, tap water is sprayed from uniformly distributed tap water spray thrower 1-1, is formed
Countless fine mists, after being sufficiently mixed contact with exhaust gas, the substances such as dust in exhaust gas are absorbed in tap water；Exhaust gas rises
Into fluidization regions 2, the huge surface areas of fluidized packing material 2-2 form huge liquid film area, and the nitrogen oxides in exhaust gas is fluidized
Liquid absorbs, and then fluidizes in the fluidisation liquid storage slot 2-3 that liquid stream enters lower part；Exhaust gas ascends into biological adsorption area 3, and exhaust gas is inhaled
Simultaneously biochemical reaction occurs for microorganism adsorption in attached filler 3-1；Gas is subsequently into demister 4, and the drop in gas is herein
It is blocked；Then gas enters activated carbon area 5, and the substance and drop being mingled in gas are intercepted under absorption herein
Come, so far exhaust gas is processed into clean gas, and exhaust fan 6 is discharged gas up to standard is handled.
2. fluidizing the fluidisation liquid waste water in liquid storage slot by storing slot fluidisation liquid delivery pipe and reduction pond water inlet pipe to enter
Pond 7 is restored, is mixed with the reducing agent of reducing agent adder 7-4 additions, the pH value that pH value adjuster 7-10 adjusts waste water is 2~4,
Waste water is stirred using mixed zone blender 7-5；Nitrogen oxides in waste water is reduced into nitrogen, useless after reduction reaction
Water enters settling zone 7-2, and reduction pond three phase separator 7-7, which is realized, to be separated by solid-liquid separation；It is heavy that solids is sunk under gravity
The lower part in shallow lake area is discharged by the reduction pond drain valve 7-9 of bottom；Waste water is by restoring pond overfalling weir 7-8 and the water outlet of reduction pond
Pipe enters stripping pond water inlet pipe 8-5.
3. waste water enters the middle and lower part in stripping pond by stripping pond water inlet pipe 8-5 and stripping pond water distribution branch pipe 8-4；Aeration plate
8-3 generates a large amount of tiny bubbles, and the nitrogen that the reduction reaction in waste water is generated blows out the water surface, and the nitrogen of blowout is by gas collecting tube 8-
12 collect discharge, and the waste water after stripping enters Disengagement zone 8-2, and stripping pond three phase separator 8-8, which is realized, to be separated by solid-liquid separation；Solids exists
The lower part that Disengagement zone is sunk under the action of gravity is discharged by the stripping pond drain valve 8-10 of bottom；Waste water passes through stripping pond
Overfalling weir 8-9, stripping pond outlet pipe enter clear water reserviors 9.
4. the water outlet of clear water reserviors 9 enters fluidisation liquid circulating pump 2-4 by clear water reserviors outlet pipe, recycle.
5. the sediment of reduction pond drain valve 7-9 and stripping pond drain valve 8-10 discharges is concentrated, is transported outward after dehydration.
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (2)
1. a kind of middle-size and small-size industrial furnace emission-control equipment, it is characterised in that：Including exhaust-gas treatment tank, sedimentation basin, reduction pond
(7), stripping pond (8) and clear water reserviors (9)；
The exhaust-gas treatment tank is followed successively by cleaning dust area (1), fluidization regions (2), biological adsorption area (3), removes bottom-up
Day with fog (4), activated carbon area (5) and exhaust fan (6)；
The cleaning dust area (1) is located at the lowest part of exhaust-gas treatment tank；It is washed equipped with exhaust gas in the cleaning dust area (1)
Component is washed, the exhaust gas wash includes superposed tap water spray thrower (1-1), the waste water collection water cone positioned at lower part
Shape slot (1-2), the waste water cone tank (1-2) that catchments connect sedimentation basin by discharge of wastewater valve (1-3) with pipeline；Cleaning dust area
(1) middle and lower part is equipped with air inlet pipe (1-4) and gas distribution pipe (1-5)；Tap water spray thrower (1-1) connects tap water inlet pipe (1-6)；
The fluidization regions (2) are equipped with fluidization components, and the fluidization components include superposed fluidisation liquid spray thrower (2-
1), the fluidisation liquid storage slot (2-3) positioned at the fluidized packing material at middle part (2-2), positioned at lower part and storage slot fluidize liquid delivery pipe；Institute
It states fluidized packing material (2-2) to be made of inorganic inert material, using hollow ball or other polyhedron-shaped, exhaust gas is from fluidization regions lower part
It is blown into, fluidized packing material is in fluidized state；The lower part fluidized packing material (2-2) is equipped with support plate with holes, and the aperture of support plate is less than
The size of fluidized packing material (2-2)；
The fluidisation liquid is sodium sulfite solution；
The biological adsorption area (3) is equipped with adsorption stuffing (3-1)；
Described biological adsorption area (3) top is equipped with demister (4), and the demister top is equipped with activated carbon area (5)；It is described
The topmost of exhaust-gas treatment tank exhaust fan (6) is installed；
The fluidization components are furnished with the fluidisation liquid for entering to fluidize liquid spray thrower by liquid pump is fluidized being arranged on the outside of fluidization regions and recycle
(2-4) and fluidisation liquid adder (2-5) are pumped, the fluidisation liquid adder (2-5) includes fluidisation flow container and fluidisation flow container stirring
Device, fluidisation liquid adder (2-5) are connected to fluidisation liquid circulating pump (2-4) by pipeline with valve；
The cross section of the fluidisation liquid storage slot (2-3) is circle, and fluidisation liquid aggregation is equipped with above fluidisation liquid storage slot (2-3)
Device (2-6), the lower end diameter of the fluidisation liquid collector (2-6) are less than the diameter of fluidisation liquid storage slot (2-3) topmost；Stream
Changing liquid collector (2-6) makes the aggregation of fluidisation liquid be back in fluidisation liquid storage slot (2-3)；
The demister (4) is baffle plate demister or overflowing board demister；
The tap water spray thrower (1-1), fluidisation liquid spray thrower (2-1) are helical form spray thrower；The liquid ejected is presented
Mist, and mixing together between water mist；
The exhaust-gas treatment tank centre is cylindrical, upper and lower ends are conical tank body, and observation port is offered on the tank body
With maintenance replacement port, tank body volume size according to pending gas flow number depending on, using vertical vertical placement；
The reduction pond (7) includes mixed zone (7-1) and settling zone (7-2), and the bottom mixed zone (7-1) is equipped with the water inlet of reduction pond
It manages (7-3), the storage slot that reduction pond water inlet pipe (7-3) connects exhaust-gas treatment tank fluidizes liquid delivery pipe, and mixed zone middle and upper part is equipped with
Reducing agent adder (7-4) is provided with mixed zone blender (7-5) in the middle part of mixed zone；Baffle (7- is equipped in the settling zone
6), the baffle and the inner wall in reduction pond form the waste water runner for entering settling zone as waste water, and the exit of settling zone is equipped with also
The outlet top of former pond three phase separator (7-7), settling zone is equipped with reduction pond overfalling weir (7-8), and reduction pond overfalling weir (7-8) is even
Reduction pond outlet pipe is connect, settling zone bottom is designed to pyramidal structure, and settling zone bottom is provided with reduction pond drain valve (7-9)；
The reducing agent of reducing agent adder (7-4) addition is sulfamic acid solution；Mixed zone middle and upper part is equipped with pH value adjuster (7-10)；
The stripping pond (8) includes stripping area (8-1) and Disengagement zone (8-2), and the bottom stripping area (8-1) is provided with aeration plate
The top of (8-3), the aeration plate are equipped with stripping pond water distribution branch pipe (8-4), the stripping pond water distribution branch pipe (8-4) connection
Stripping pond water inlet pipe (8-5), stripping pond water inlet pipe (8-5) connection reduction pond outlet pipe；The aeration plate (8-3) passes through aeration
Pipe is connected with the air blower (8-6) outside stripping pond, and partition board (8-7), the inner wall of the partition board and sedimentation basin are equipped in the Disengagement zone
The waste water runner for entering Disengagement zone as waste water is formed, the exit of Disengagement zone is equipped with stripping pond three phase separator (8-8), separation
The outlet top in area is equipped with stripping pond overfalling weir (8-9), and Disengagement zone bottom is designed to pyramidal structure, is provided in Disengagement zone bottom
Stripping pond drain valve (8-10)；Stripping pond overfalling weir (8-9) connects stripping pond outlet pipe；Stripping pond is equipped with conical upper cover (8-
11), the top of conical upper cover is equipped with gas collecting tube (8-12)；
The clear water reserviors (9) are equipped with clear water reserviors water inlet pipe and clear water reserviors outlet pipe, and clear water reserviors water inlet pipe is connected to the water outlet of stripping pond
Pipe, clear water reserviors outlet pipe connection fluidisation liquid circulating pump (2-4).
2. a kind of middle-size and small-size industrial furnace emission-control equipment as described in claim 1, it is characterised in that：The absorption is filled out
Expect (3-1) by dried activated sludge, feces of livestock and poultry, sawdust, activated carbon and multi-panel hollow plastic ball by volume 3:1:10:2:20 is mixed
Conjunction is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810714258.6A CN108786436A (en) | 2018-07-03 | 2018-07-03 | A kind of middle-size and small-size industrial furnace emission-control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810714258.6A CN108786436A (en) | 2018-07-03 | 2018-07-03 | A kind of middle-size and small-size industrial furnace emission-control equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108786436A true CN108786436A (en) | 2018-11-13 |
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ID=64074134
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810714258.6A Pending CN108786436A (en) | 2018-07-03 | 2018-07-03 | A kind of middle-size and small-size industrial furnace emission-control equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109316937A (en) * | 2018-11-15 | 2019-02-12 | 临沂齐泽医药技术有限公司 | A kind of wet boiler fume desulfurizing and dedusting device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104923067A (en) * | 2015-06-06 | 2015-09-23 | 常州大学 | Integrated CS2 exhaust air treatment device |
| CN105036469A (en) * | 2015-07-21 | 2015-11-11 | 常州大学 | Advanced treatment system for dye wastewater |
-
2018
- 2018-07-03 CN CN201810714258.6A patent/CN108786436A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104923067A (en) * | 2015-06-06 | 2015-09-23 | 常州大学 | Integrated CS2 exhaust air treatment device |
| CN105036469A (en) * | 2015-07-21 | 2015-11-11 | 常州大学 | Advanced treatment system for dye wastewater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109316937A (en) * | 2018-11-15 | 2019-02-12 | 临沂齐泽医药技术有限公司 | A kind of wet boiler fume desulfurizing and dedusting device |
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Application publication date: 20181113 |