CN208287798U - A kind of efficient oxidation wet desulphurization device - Google Patents
A kind of efficient oxidation wet desulphurization device Download PDFInfo
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- CN208287798U CN208287798U CN201721625840.2U CN201721625840U CN208287798U CN 208287798 U CN208287798 U CN 208287798U CN 201721625840 U CN201721625840 U CN 201721625840U CN 208287798 U CN208287798 U CN 208287798U
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Abstract
The utility model relates to a kind of efficient oxidation wet desulphurization devices, including desulfurizing tower, gas inlet and exhanst gas outlet are provided on the desulfurizing tower, catch basin is formed on the bottom of the desulfurizing tower, the gas inlet is connected with exhaust gases passes, hybrid hydrostatic case is provided on the exhaust gases passes, the exhaust gases passes of the hybrid hydrostatic case leading portion are mixing flue, along being provided with pressure-air jet pipe at central axis in the mixing flue, the head seal of the pressure-air jet pipe, multiple spiral nozzles are evenly arranged on peripheral wall, the pressure-air jet pipe is connected with high-pressure pump.It is provided at least one spiral fan blade in the middle part of the hybrid hydrostatic case, the hybrid hydrostatic case upper wall is provided with multiple cleaning sprayers, and the bottom of the hybrid hydrostatic case is provided with inclined floor, and the lower end of the inclined floor is connected by sewage draining valve with dredge pump.The utility model has many advantages, such as that reliable performance, oxidation efficiency are high, operating cost is low, desulfurization effect is ideal.
Description
Technical field
The utility model relates to technical field of waste gas treatment, and in particular to a kind of efficient oxidation wet desulphurization device.
Background technique
With rapid development of economy, the industries such as electric power, metallurgy, chemical industry and building materials generate a large amount of cigarette containing sulfur dioxide
Gas is discharged into atmosphere and pollutes, and sulfur dioxide becomes one of Air Pollutant Discharge.In order to eliminate sulfur dioxide pollution, people
Many methods for reducing SO2 emissions are found through great efforts, wherein with the most use with wet desulphurization.Usual wet desulphurization
When directly obtain be sulfur dioxide reacted with the absorbent for being modulated into " slurries " shape generate sulphite, in many cases for
Convenient for the recycling of desulfurization product, need sulfite oxidation into sulfate.Although containing in the flue gas containing sulfur dioxide
A certain amount of oxygen can play the role of for ite being oxidized to sulfate, but oxygen content is lower in flue gas after all, cannot
Ite is completely oxidized to sulfate, needs other supplemental oxygen.It is industrially typically employed in absorption tower bottom setting catch basin,
The sulphite " slurries " stored into catch basin is passed through air, oxidative salt in the form of bubbling.For example, with lime stone
Or lime be absorbent, remove flue gas in sulfur dioxide when, absorption tower bottom be provided with storage absorbent lime stone or lime and
The circulating slot of desulfurization product calcium sulfite " slurries ", blasts air to circulating slot, makes calcium sulfite oxidation at convenient for recycling
Calcium sulfate (gypsum).
There are two defects for this method that air oxidation sulphite is passed through in the form of bubbling: " bubbling " mode mass transfer
Low efficiency, coefficient of oxygen utilization is low, and required air quantity is big, increases flue gas after desulfurization amount；The air being passed through will pass through " slurries " layer, gram
Clothes " slurries " layer be formed by resistance, overcome resistance to require the expenditure of energy, it is desirable that oxidation effectiveness is good, by " slurries " layer get over
Thickness, resistance is bigger, consumes energy higher.When practical application, in order to reach best oxidation effectiveness, aeration tube is set, is opened up on pipe
The air outlet slit of even distribution enables air to be uniformly distributed on slot cross-section catchmenting；Increase as far as possible simultaneously " slurries " that air passes through
Thickness degree.Necessarily cause the pressure head for conveying the air blower of air to increase in this way, increases energy consumption.Therefore it provides a kind of oxidation
It is high-efficient, operating cost is low, the ideal wet desulphurization device of desulfurization effect become urgent problem to be solved.
Utility model content
For the above problem in the prior art, high, operation that the purpose of the utility model is to provide a kind of desulfuration efficiencies
It is at low cost, to the significant efficient oxidation wet desulphurization device of the oxidation effectiveness of sulphite.
In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of efficient oxidation wet desulphurization device, packet
Desulfurizing tower is included, gas inlet and exhanst gas outlet are provided on the desulfurizing tower, catch basin is formed on the bottom of the desulfurizing tower；It is described
Agitating device, aeration tube are provided in catch basin, the aeration tube is connected with Aeration fan；The catch basin also respectively with slurry
Fluid supply pump, gypsum draw pump and are connected；
The desulfurizing tower top is disposed with the first spraying layer, the second spraying layer, third spraying layer from up to down, each to spray
The nozzle misalignment of drenching layer is arranged, and the nozzle of the first spraying layer, the second spraying layer is arranged downward, and the nozzle of third spraying layer is upward
Setting；Each spraying layer passes sequentially through air and liquid mixer, circulating pump, filter device and is connected with catch basin, the air and liquid mixer
Also it is connected with pure air supply pump；The connector of the filter device and catch basin is set to the top of catch basin；
The gas inlet 3 is connected with exhaust gases passes, and hybrid hydrostatic case, the mixing are provided on the exhaust gases passes
The exhaust gases passes of plenum chamber leading portion are mixing flue, are sprayed along being provided with pressure-air at central axis in the mixing flue
Pipe, the head seal of the pressure-air jet pipe are evenly arranged with multiple spiral nozzles on peripheral wall, the pressure-air jet pipe with
High-pressure pump is connected；
It is provided at least one spiral fan blade in the middle part of the hybrid hydrostatic case, the hybrid hydrostatic case upper wall is provided with multiple
Cleaning sprayer, the bottom of the hybrid hydrostatic case are provided with inclined floor, the lower end of the inclined floor by sewage draining valve with
Dredge pump is connected；
The filter device includes filter screen, and the filter screen is towards scraper plate is provided on a side surface of catch basin, also
Including the fixed rotating shaft for being located at filter screen center position and vertically passing screen surface is arranged, it is provided on the fixed rotating shaft
First bevel gear, the fixed rotating shaft are fixedly connected with scraper plate, further include cleaning motor, the head of the output shaft for cleaning motor
Portion is provided with the second bevel gear cooperated with each other with first bevel gear.
Further, the slurries supply pump is successively connected with limestone slurry liquid case, Limestone silo；The gypsum is drawn
Pump be successively connected with gypsum cyclone, gypsum dehydration machine, the gypsum dehydration machine is connected with filtrate receiver, the filtrate receiver and
Catch basin is connected.
Further, it is located in the desulfurizing tower above the first spraying layer and is provided with demister.
Further, further include control unit, described control unit respectively with Aeration fan, high-pressure pump, pure air
Supply pump is connected.
Further, the quantity of the spiral fan blade is 3.
Further, flow control valve is also respectively provided on the connecting line of each spraying layer and air and liquid mixer.
In addition, in technical solution described in the utility model, all do not do is illustrated, can be used normal in this field
Rule means realize the technical program.
The utility model has the advantage that the utility model is realized by three kinds of different modes and supplements sky into flue gas
Gas, and flue gas can adequately be mixed with air, desulfurization slurry, and it is anti-adequately oxidation can be carried out to calcium sulfite
It answers, realizes high-efficiency desulfurization.And the air capacity that different modes are pumped into can be adjusted in the setting of control unit, guaranteeing to aoxidize
Operating cost can be reduced while effect as far as possible.This is provided with filter device to the utility model, passes through setting filtering dress
It sets and can be effectively reduced the blocked probability of nozzle, guarantee the long-time steady operation of system.The utility model has performance can
It leans on, the advantages that oxidation efficiency is high, operating cost is low, desulfurization effect is ideal, is conducive to large-scale promotion application.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model filter device.
In figure: 1, desulfurizing tower；2, catch basin；3, gas inlet；4, exhanst gas outlet；5, hybrid hydrostatic case；6, flue is mixed；
7, pressure-air jet pipe；8, spiral nozzle；9, high-pressure pump；10, cleaning sprayer；11, spiral fan blade；12, inclined floor；13,
Sewage draining valve；14, dredge pump；15, the first spraying layer；16, the second spraying layer；17, third spraying layer；18, circulating pump；19, mistake
Filter device；20, air and liquid mixer；21, pure air supply pump；22, Limestone silo；23, limestone slurry liquid case；24, slurries supply
To pump；25, agitating device；26, aeration tube；27, Aeration fan；28, gypsum draws pump；29, gypsum cyclone；30, gypsum is de-
Water dispenser；31, filtrate receiver；32, demister；33, filter screen；34, scraper plate；35, fixed rotating shaft, 36, clean motor, 37, output shaft,
38 first bevel gears；39, second bevel gear.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
Referring to Fig. 1-2, a kind of efficient oxidation wet desulphurization device, including desulfurizing tower 1 is provided with cigarette on the desulfurizing tower 1
Catch basin 2 is formed on the bottom of gas import 3 and exhanst gas outlet 4, the desulfurizing tower 1；Be provided in the catch basin agitating device 25,
Aeration tube 26, the aeration tube 26 are connected with Aeration fan 27；The catch basin also draws with slurries supply pump 24, gypsum respectively
Pump 28 is connected out.
1 top of desulfurizing tower is disposed with the first spraying layer 15, the second spraying layer 16, third spraying layer from up to down
17, the nozzle misalignment setting of each spraying layer, and the nozzle of the first spraying layer 15, the second spraying layer 16 is arranged downward, third spray
The nozzle of layer 17 is arranged upward.By the nozzle for each spraying layer that is staggered, can reinforce spraying slurries to tower body inside
Coverage rate.And the nozzle of third spraying layer 17 is set upward, on the one hand expand the moving region for spraying slurries, extend slurries with
The incorporation time of flue gas collides the slurries of sprinkling mutually, disperses slurries more, increases the contact surface with flue gas
Product, and then improve desulfuration efficiency.
Each spraying layer passes sequentially through air and liquid mixer 20, circulating pump 18, filter device 19 and is connected with catch basin 2, described
Air and liquid mixer 20 is also connected with pure air supply pump 21；The connector of the filter device 19 and catch basin 2 is set to
The top of catch basin 2.Compressed air is mixed with slurries by air and liquid mixer, it on the one hand can be swollen due to compressed air
Swollen effect keeps the drop of the slurries sprayed smaller, thinner, to expand the contact area and area coverage of slurries and flue gas, increases
Big desulfuration efficiency；On the other hand the blocking probability of nozzle can be also reduced, finally, containing for flue gas in desulfurizing tower 1 can also be improved
Oxygen amount improves the oxidation effectiveness of sulphite.
The gas inlet 3 is connected with exhaust gases passes, and hybrid hydrostatic case 5 is provided on the exhaust gases passes, described mixed
The exhaust gases passes for closing 5 leading portion of plenum chamber are mixing flue 6, and the mixing flue 6 is interior empty along high pressure is provided at central axis
Gas blowout pipe 7, the head seal of the pressure-air jet pipe 7 are evenly arranged with multiple spiral nozzles 8 on peripheral wall, and the high pressure is empty
Gas blowout pipe 7 is connected with high-pressure pump 9.
Air is injected into flue gas by pressure-air jet pipe 7, and then improves the oxygen content of flue gas, the utility model high pressure
It is evenly arranged with multiple spiral nozzles 8 in the head seal and peripheral wall of air lance 7, and then flue gas and sky can be greatly improved
The mixed effect of gas, and biggish windage will not be brought.
At least one spiral fan blade 11 is provided in the middle part of the hybrid hydrostatic case 5,5 upper wall of hybrid hydrostatic case is provided with
Multiple cleaning sprayers 10, the bottom of the hybrid hydrostatic case 5 are provided with inclined floor 12, and the lower end of the inclined floor 12 passes through
Sewage draining valve 13 is connected with dredge pump 14.
Spiral fan blade 11 is especially arranged inside it, can greatly promote flue gas and air for the setting of hybrid hydrostatic case 5
Mixing, to be ready in advance to the oxidation of calcium sulfite in desulfurizing tower.And since hybrid hydrostatic case 5 works long hours
Inside will necessarily gather many flue dust, therefore be provided with cleaning sprayer 10, and inclined floor 12 dips down along flow of flue gas direction
Tiltedly, very easily hybrid hydrostatic case 5 can be cleaned and last blowdown works.
The filter device 19 includes filter screen 33, and the filter screen 33 is towards being provided on a side surface of catch basin 2
Scraper plate 34 further includes the fixed rotating shaft 35 that positioned at filter screen center position and vertically passing screen surface is arranged, the fixation
First bevel gear 38 is provided in shaft 35, the fixed rotating shaft 35 is fixedly connected with scraper plate 34, further includes cleaning motor 36, institute
The head for stating the output shaft 37 of cleaning motor 36 is provided with the second bevel gear 39 cooperated with each other with first bevel gear 38.It crosses
The setting of strainer 33 can be effectively reduced the blocking probability of spraying layer nozzle, and the components such as motor and scraper plate are arranged, can be timely
Lime white, the calcium plaster coagulation being blocked on filter screen 33 are cleared up, can guarantee the long-time steady operation of filter device 19.
As a preference, the slurries supply pump 24 is successively connected with limestone slurry liquid case 23, Limestone silo 22；Institute
It states gypsum extraction pump 28 to be successively connected with gypsum cyclone 29, gypsum dehydration machine 30, the gypsum dehydration machine 30 and filtrate receiver
31 are connected, and the filtrate receiver 31 is connected with catch basin 2.It is located above the first spraying layer 15 in the desulfurizing tower 1 and is provided with
Demister 32.
Further include control unit, described control unit respectively with Aeration fan 27, high-pressure pump 9, pure air supply pump
21 are connected.It, can be according to, to the oxidization condition of calcium sulfite, control adjusts in time in desulfurizing tower 1 by the way that control unit is arranged
The air capacity that Aeration fan 27, high-pressure pump 9, pure air supply pump 21 supply, so that in the premise for reaching oxidation requirements
Under, the air capacity being pumped into flue gas is minimum, the minimum effect of operating cost.
The quantity of the spiral fan blade 11 is 3.It is also set respectively on each spraying layer and the connecting line of air and liquid mixer 20
It is equipped with flow control valve.By the way that flow control valve is arranged, the pressure of each spraying layer can be adjusted, and then make to spraying effect
Adjustment.
As being well known that, in order to control the water flow in each connecting line, in attached drawing 1 although it is not shown, but
It is that multiple shut-off valves, flow valve, booster pump can be set according to actual needs in each pipeline etc., does not go to live in the household of one's in-laws on getting married further herein
It states.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (6)
1. a kind of efficient oxidation wet desulphurization device, including desulfurizing tower, gas inlet is provided on the desulfurizing tower and flue gas goes out
Mouthful, catch basin is formed on the bottom of the desulfurizing tower；Be provided with agitating device, aeration tube in the catch basin, the aeration tube with
Aeration fan is connected；The catch basin also draws pump with slurries supply pump, gypsum respectively and is connected；It is characterized by: described
Desulfurizing tower top is disposed with the first spraying layer, the second spraying layer, third spraying layer from up to down, and the nozzle of each spraying layer is wrong
Position setting, and the nozzle of the first spraying layer, the second spraying layer is arranged downward, the nozzle of third spraying layer is arranged upward；Each spray
Layer passes sequentially through air and liquid mixer, circulating pump, filter device and is connected with catch basin, the air and liquid mixer also with pure air
Supply pump is connected；The connector of the filter device and catch basin is set to the top of catch basin；The gas inlet and cigarette
Gas channel is connected, and hybrid hydrostatic case is provided on the exhaust gases passes, the exhaust gases passes of the hybrid hydrostatic case leading portion are mixed
Close flue, the mixing flue is interior along being provided with pressure-air jet pipe, the head of the pressure-air jet pipe at central axis
It seals, is evenly arranged with multiple spiral nozzles on peripheral wall, the pressure-air jet pipe is connected with high-pressure pump；The mixing is quiet
It is provided at least one spiral fan blade in the middle part of pressure case, the hybrid hydrostatic case upper wall is provided with multiple cleaning sprayers, the mixing
The bottom of plenum chamber is provided with inclined floor, and the lower end of the inclined floor is connected by sewage draining valve with dredge pump；It is described
Filter device includes filter screen, and the filter screen further includes being located at filtering towards scraper plate is provided on a side surface of catch basin
Net center position and the fixed rotating shaft of vertically passing screen surface setting, are provided with first bevel gear on the fixed rotating shaft,
The fixed rotating shaft is fixedly connected with scraper plate, further include clean motor, it is described clean motor output shaft head be provided with
The second bevel gear that first bevel gear cooperates with each other.
2. efficient oxidation wet desulphurization device according to claim 1, it is characterised in that: the slurries supply pump successively with
Limestone slurry liquid case, Limestone silo are connected；The gypsum draws pump and is successively connected with gypsum cyclone, gypsum dehydration machine,
The gypsum dehydration machine is connected with filtrate receiver, and the filtrate receiver is connected with catch basin.
3. efficient oxidation wet desulphurization device according to claim 1 or 2, it is characterised in that: be located in the desulfurizing tower
Demister is provided with above first spraying layer.
4. efficient oxidation wet desulphurization device according to claim 1, it is characterised in that: it further include control unit, it is described
Control unit is connected with Aeration fan, high-pressure pump, pure air supply pump respectively.
5. efficient oxidation wet desulphurization device according to claim 1, it is characterised in that: the quantity of the spiral fan blade is
3.
6. efficient oxidation wet desulphurization device according to claim 1, it is characterised in that: each spraying layer and air and liquid mixer
Connecting line on be also respectively provided with flow control valve.
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| CN201721625840.2U CN208287798U (en) | 2017-11-28 | 2017-11-28 | A kind of efficient oxidation wet desulphurization device |
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| CN201721625840.2U CN208287798U (en) | 2017-11-28 | 2017-11-28 | A kind of efficient oxidation wet desulphurization device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107998863A (en) * | 2017-11-28 | 2018-05-08 | 江苏民生重工有限公司 | A kind of efficient oxidation wet desulphurization device |
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- 2017-11-28 CN CN201721625840.2U patent/CN208287798U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107998863A (en) * | 2017-11-28 | 2018-05-08 | 江苏民生重工有限公司 | A kind of efficient oxidation wet desulphurization device |
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