CN208229653U - A kind of washing ammonia desulfuration equipment - Google Patents
A kind of washing ammonia desulfuration equipment Download PDFInfo
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- CN208229653U CN208229653U CN201820480310.1U CN201820480310U CN208229653U CN 208229653 U CN208229653 U CN 208229653U CN 201820480310 U CN201820480310 U CN 201820480310U CN 208229653 U CN208229653 U CN 208229653U
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Abstract
The utility model is a kind of washing ammonia desulfuration equipment, including the prewashing tower connected by interface channel and absorption tower, the prewashing top of tower is provided with kiln gas air inlet, it is provided with kiln gas gas outlet at the top of the absorption tower, is disposed with aerosol cohesion along smoke movement direction inside the prewashing tower and washes layer, spraying layer, circulating cooling layer.Flue gas is handled using the utility model, on the basis of spraying layer is cooling, one layer of circulating cooling layer is superimposed, increases and carry out mass-and heat-transfer effect between flue gas, improve the abjection ability of back segment electrostatic precipitator, is the deep purifying processing to flue gas.
Description
Technical field
The utility model relates to ammonia desulfuration equipments, and in particular to a kind of washing ammonia desulfuration equipment.
Background technique
Increase aerosol in the prewashing tower of ammonia desulfuration equipment and agglomerate water wash system, the basic function of aerosol washing system is logical
It crosses using aerosol two-fluid spray system, clear water atomization is generated into a large amount of droplets, is significantly increased and aerosol subtle in flue gas
Contact probability, to improve desulfurization dust-removing efficiency.
CN204933781U discloses a kind of air atomization spray gun, including inner sleeve, setting are in inner sleeve wherein one end
Air cap and connection the water inlet pipe and air inlet pipe of inner sleeve the other end, the inner sleeve with air cap are set
It protrudes into desulfurizing tower, is additionally provided with adjusting retaining mechanism, the adjusting locking in the middle part of the inner sleeve between desulfurizing tower
Mechanism includes being fixed at ring flange at the top of desulfurizing tower, being fixed on ring flange and offer externally threaded company in outside wall surface
Female connector, collet and lock nut.However, although this method discloses the spray gun that may be used in aerosol, but wash system
It is not high that bulk cargo sets efficiency of dust collection.
CN205731707U discloses a kind of ammonia desulfuration equipment with aerosol coacervation water wash system device, specifically discloses
Spray gun, prewashing tower, water circuit system and air-channel system are connected between the aerosol coacervation water wash system and desulfurizing tower by interface channel
It connects, the spray gun is distributed in the tower top, Ta Nei and interface channel of prewashing tower, and two spray guns, setting in tower is arranged in the tower top
One spray gun, interface channel is interior to be arranged a spray gun；The spray head of two spray guns of the tower top is placed in prewashing tower downward.So
And the method use excessive water resources, meanwhile, it cannot slowly become slant acidity after the water resource and smoke reaction that use,
It cannot be recycled.Therefore, it not only pollutes the environment, but also also creates a large amount of waste.
Therefore, the prior art lacks the washing ammonia desulfuration equipment that a kind of relative energy-saving is environmentally friendly, saves water.
Utility model content
To solve the above problems, the utility model provides a kind of washing ammonia desulfuration equipment, it can not only pass through atomized water
Mass-and heat-transfer effect is carried out between flue gas, further decreases flue-gas temperature, makes the aerosol of the water vapour and remaining in flue gas
Grain object condenses on water mist particle, and droplet is made to grow up, and to further increase demisting efficiency, and uses recirculated cooling water and spray
Device cooperation, can save water and protect environment.
The utility model concrete scheme is as follows:
A kind of washing ammonia desulfuration equipment, including the prewashing tower connected by interface channel and absorption tower, the prewashing tower
Top is provided with kiln gas air inlet, is provided with kiln gas gas outlet at the top of the absorption tower, along flue gas inside the prewashing tower
The direction of motion is disposed with aerosol cohesion washing layer, spraying layer, circulating cooling layer.
In the actual production process, flue gas to be processed is generally the biggish situation of the exhaust gas volumns such as coal-burning power plant, standard
Exhaust gas volumn is generally 30000-50000Nm3/ h, and flue-gas temperature is 130 DEG C or so.Therefore, only only spraying cooling, it is cooling
Time is short, and cooling capacity is limited, and cooling efficiency is in contrast relatively low.Therefore, on the basis of spraying layer is cooling, superposition one
Layer circulating cooling layer, increases and carries out mass-and heat-transfer effect between flue gas, significantly reduce the temperature of flue gas, is subsequent absorption
Tower, which is further processed, provides very big convenience.
Preferably, the circulating cooling layer is successively connected by circulation with cooling water tank, cooling water pump.
Preferably, the circulating cooling layer includes cooling water pipe and water pipe fixing device, the water pipe fixing device
The cooling water pipe is fixed on to the inner wall of the prewashing tower.
Preferably, the circulating cooling layer includes the flow slowing down net being arranged in around the cooling water pipe tube body, institute
Stating flow slowing down net is porous wire netting.Porous wire netting not only can also slow down spray liquid with reducing smoke flowing velocity
Water velocity, not only increase the gas heat exchanger time of flue gas and cooling water pipe, also increase the gas heat of flue gas and spray liquid
Swap time further increases the cooling effect of flue gas.
Preferably, the cooling water pipe is multilayer equidistant placement from top to bottom, quadrature arrangement between upper layer and lower layer is described
Cooling water pipe is 10-20 layers shared, and the ratio between the distance between every layer and the caliber of the cooling water pipe are 1:1-3.This arrangement side
Formula, space utilization rate is high, good cooling results.
Preferably, on the flow slowing down network arrangements and under be disposed with three layers, top layer's screen size is 2.00-
4.00mm, that is, 5 mesh to 10 mesh, middle layer screen pore size are 2.00-0.850mm, that is, -20 mesh of 10 mesh, top layer's sieve
Pore size is 0.850-0.300mm, that is, -50 mesh of 20 mesh.Screen size is very few, can bring relatively high air resistance, and
Screen size is excessive, will not bring relatively good slowing effect.Therefore, screen size is successively reduced using three layers, it can band
Carry out proper slowing effect, advantageously promotes makings heat transfer.
Preferably, length of the cooling water pipe in prewashing tower inner height direction is the 1/4-1/3 of prewashing tower height degree.Only
Guaranteed certain height, not only will not influence the pattern of prewashing tower entirety, but also can guarantee the time of contact of flue gas and cooling water, into
And guarantee cooling efficiency.
Preferably, the spraying layer is connected by circulation with Sprayer Circulation water pump, the flow set of the Sprayer Circulation water pump
For 10-20m3/ h, the flow set of the cooling water pump are 10-100m3/ h, the volume of the cooling water tank are 100-1000m3。
30000-50000Nm is generally according to standard fume amount3/ h, and flue-gas temperature is 130 DEG C or so, according to actual condition, design
Reasonable technological parameter ensure that air-flow cooling effect.
Preferably, the interface channel inner upper is provided with spray gun.
Preferably, the spray gun includes gun shot and spray head, the spray head is welded on one end of gun shot, the spray head
Angle with gun shot is 90-180 °, and the spray head is equipped with 3-20 spray orifice, and the spray orifice is evenly distributed on spray head, described
The diameter range of spray orifice is 0.1-3mm；The other end of the gun shot is equipped with air hose and water pipe, the air hose and water pipe
Aperture ratio is 1:0.8~1.2, and the diameter of the air hose is 20-100mm.
The utility model has the beneficial effects that
1. the utility model is superimposed one layer of circulating cooling layer on the basis of spraying layer is cooling, increases and carried out between flue gas
Mass-and heat-transfer effect, greatly improves flue gas cooling effect, so that prewashing tower slurries spray carries out at low temperature, reduces sulfurous
The volatilization of sour ammonium, it is possible to reduce the generation of aerosol；
2. cooling water pipe and air-flow speed reduction screen cooperate, the heat exchanger time of air-flow and liquid is increased, is further mentioned
High cooling effect；
3. the utility model increases specific surface using spray gun atomization technique atomized water, increase is touched mutually with microfluidic aerosol intergranular
The frequency hit simultaneously occurs to agglomerate coalescence phenomenon, so that molecule is become larger particles, these particles are easy to the electricity in back segment
Removed in demister, than prewashing tower increase newly one layer of slurries spraying effect it is more preferable, energy conservation.
4. the utility model is not only more environmentally-friendly efficient, but also water resource is greatly saved.
Detailed description of the invention
Fig. 1 apparatus main body structural schematic diagram；
Fig. 2A-A cross-sectional view.
Appended drawing reference: prewashing tower 1, absorption tower 2, kiln gas air inlet 3, kiln gas gas outlet 4, aerosol cohesion washing layer 5,
Spraying layer 6, circulating cooling layer 7, Sprayer Circulation water pump 8, circulating chilled water water pump 9, cooling water tank 10, spray gun 11, interface channel 12,
Cooling water pipe 13, flow slowing down net 14, water pipe fixing device 15.
Specific embodiment
Specific embodiment of the present utility model is described further below:
A kind of washing ammonia desulfuration equipment, as depicted in figs. 1 and 2, including 1 He of prewashing tower connected by interface channel 12
Absorption tower 2 is provided with kiln gas air inlet 3 at the top of the prewashing tower 1, is provided with kiln gas gas outlet at the top of the absorption tower 2
4, aerosol cohesion washing layer 5, spraying layer 6, circulating cooling layer 7 are disposed with along smoke movement direction inside the prewashing tower 1.
The circulating cooling layer 7 is successively connected by circulation with cooling water tank 10, cooling water pump 9.The spraying layer 6 and Sprayer Circulation water pump 8
It is connected by circulation.12 inner upper of interface channel is provided with spray gun 11.The circulating cooling layer 7 includes 13 He of cooling water pipe
The cooling water pipe 13 is fixed on the inner wall of the prewashing tower 1 by water pipe fixing device 15, the water pipe fixing device 15.It is described
Circulating cooling layer 7 includes the flow slowing down net 14 being arranged in around 13 tube body of cooling water pipe, and the flow slowing down net 14 is
Porous wire netting.
Preferably, the cooling water pipe 13 is multilayer equidistant placement, quadrature arrangement between upper layer and lower layer, institute from top to bottom
It states cooling water pipe 13 and shares 10-20 layers, the ratio between the distance between every layer and the caliber of the cooling water pipe 13 are 1:1-3.It is this
Arrangement, space utilization rate is high, good cooling results.
Preferably, on the flow slowing down net 14 arrangement and under be disposed with three layers, top layer's screen size is 2.00-
4.00mm, that is, 5 mesh to 10 mesh, middle layer screen pore size are 2.00-0.850mm, that is, -20 mesh of 10 mesh, top layer's sieve
Pore size is 0.850-0.300mm, that is, -50 mesh of 20 mesh.Screen size is very few, can bring relatively high air resistance, and
Screen size is excessive, will not bring relatively good slowing effect.Therefore, screen size is successively reduced using three layers, it can band
Carry out proper slowing effect, advantageously promotes makings heat transfer.
Preferably, length of the cooling water pipe in prewashing tower inner height direction is the 1/4-1/3 of prewashing tower height degree.Only
Guaranteed certain height, not only will not influence the pattern of prewashing tower entirety, but also can guarantee the time of contact of flue gas and cooling water, into
And guarantee cooling efficiency.
Preferably, the spraying layer is connected by circulation with Sprayer Circulation water pump, the flow set of the Sprayer Circulation water pump
For 10-20m3/ h, the flow set of the cooling water pump are 10-100m3/ h, the volume of the cooling water tank are 100-1000m3。
30000-50000Nm is generally according to standard fume amount3/ h, and flue-gas temperature is 130 DEG C or so, according to actual condition, design
Reasonable technological parameter ensure that air-flow cooling effect.
Preferably, the spray gun includes gun shot and spray head, the spray head is welded on one end of gun shot, the spray head
Angle with gun shot is 90-180 °, and the spray head is equipped with 3-20 spray orifice, and the spray orifice is evenly distributed on spray head, described
The diameter range of spray orifice is 0.1-3mm；The other end of the gun shot is equipped with air hose and water pipe, the air hose and water pipe
Aperture ratio is 1:0.8~1.2, and the diameter of the air hose is 20-100mm.
The absorption tower 2 is disposed with washing tower tray, packing layer, spraying layer, electric demisting along the direction of motion of kiln gas
Device, wet electrical dust precipitator.The washing tower tray is eddy flow gas cap tower tray.Described filler layer is ceramic packing.Wash tower tray, filler
The absorption tower washing layer of layer, spraying layer composition, realizes low concentration clear water three-level circulating water wash, to the ammonia and sulfuric acid of flue gas entrainment
Ammonium is washed, and flue gas entrainment, water washing device and packing layer can be substantially reduced, and is improved desulphurizing ability, is reduced aerosol
It generates, strengthens the trapping and washing to subtle aerosol, increase partial size, promote the removal efficiency to aerosol.It is detailed in patent one
The water washing device (206343056 U of CN) of kind high efficiency removing aerosol.The electrostatic precipitator is arranged before wet electrical dust precipitator
It face can be with smooth air-flow；Wet electrical dust precipitator includes regular hexagon honeycomb electroconductive frp anode tube, titanium pole discharge lines and height
Pulased power supply unit is pressed, the output end of high-voltage pulse electric source device connects titanium pole discharge lines, and the high-voltage pulse power source is base pressure
The integrated high voltage power supply of superimposed pulse voltage, titanium pole discharge lines are located at the center of anode tube.It is detailed in patent one kind and is based on arteries and veins
Rush the new and effective wet type electric precipitator (205887177 U of CN) of power supply.
Handle flue gas using the utility model, on the basis of spraying layer is cooling, be superimposed one layer of circulating cooling layer, increase with
Mass-and heat-transfer effect is carried out between flue gas, is conducive to the absorption to subtle aerosol, coacervation, partial size increase, is improved back segment electricity demisting
The abjection ability of device is the deep purifying processing to flue gas.
According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and is modified.Therefore, the utility model is not limited to specific embodiment disclosed and described above, right
Some modifications and changes of utility model should also be as falling into the protection scope of the claims of the present utility model.In addition, although
It is used some specific terms in this specification, these terms are merely for convenience of description, not to the utility model structure
At any restrictions.
Claims (10)
1. a kind of washing ammonia desulfuration equipment, including the prewashing tower connected by interface channel and absorption tower, the prewashing tower top
Portion is provided with kiln gas air inlet, is provided with kiln gas gas outlet at the top of the absorption tower, which is characterized in that in the prewashing tower
Portion is disposed with aerosol cohesion washing layer, spraying layer, circulating cooling layer along smoke movement direction.
2. the apparatus according to claim 1, which is characterized in that the circulating cooling layer successively with cooling water tank, cooling water
Pump circulation connection.
3. the apparatus of claim 2, which is characterized in that the circulating cooling layer includes that cooling water pipe and water pipe are solid
Determine device, the cooling water pipe is fixed on the inner wall of the prewashing tower by the water pipe fixing device.
4. device according to claim 3, which is characterized in that the circulating cooling layer includes being arranged in the cooling water pipe
Flow slowing down net around tube body, the flow slowing down net are porous wire netting.
5. device according to claim 3 or 4, which is characterized in that the cooling water pipe is the equidistant cloth of multilayer from top to bottom
Set, quadrature arrangement between upper layer and lower layer, shared 10-20 layers of the cooling water pipe, the distance between every layer with the cooling water pipe
The ratio between caliber be 1:1-3.
6. device according to claim 4, which is characterized in that be disposed with three under on the flow slowing down network arrangements
Layer, top layer's screen size are 2.00-4.00mm, and middle layer screen pore size is 2.00-0.850mm, and top layer's screen size is
0.850-0.300mm。
7. device according to claim 3 or 4, which is characterized in that the cooling water pipe is in prewashing tower inner height direction
Length is the 1/4-1/3 of prewashing tower height degree.
8. the apparatus of claim 2, which is characterized in that the spraying layer is connected by circulation with Sprayer Circulation water pump, institute
The flow set for stating Sprayer Circulation water pump is 10-20m3/ h, the flow set of the cooling water pump are 10-100m3/ h is described cold
But the volume of water tank is 100-1000m3。
9. device according to claim 1 or 2, which is characterized in that the interface channel inner upper is provided with spray gun.
10. device according to claim 9, which is characterized in that the spray gun includes gun shot and spray head, the spray head weldering
It connects in one end of gun shot, the angle of the spray head and gun shot is 90-180 °, and the spray head is equipped with 3-20 spray orifice, described
Spray orifice is evenly distributed on spray head, and the diameter range of the spray orifice is 0.1-3mm；The other end of the gun shot is equipped with air hose
And water pipe, the aperture ratio of the air hose and water pipe are 1:0.8~1.2, the diameter of the air hose is 20-100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820480310.1U CN208229653U (en) | 2018-03-30 | 2018-03-30 | A kind of washing ammonia desulfuration equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820480310.1U CN208229653U (en) | 2018-03-30 | 2018-03-30 | A kind of washing ammonia desulfuration equipment |
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| Publication Number | Publication Date |
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| CN208229653U true CN208229653U (en) | 2018-12-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108261910A (en) * | 2018-03-30 | 2018-07-10 | 广东佳德环保科技有限公司 | A kind of washing ammonia desulfuration equipment |
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2018
- 2018-03-30 CN CN201820480310.1U patent/CN208229653U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108261910A (en) * | 2018-03-30 | 2018-07-10 | 广东佳德环保科技有限公司 | A kind of washing ammonia desulfuration equipment |
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