CN206767683U - A kind of flue gas desulfurization waste-water is concentrated by evaporation processing unit - Google Patents
A kind of flue gas desulfurization waste-water is concentrated by evaporation processing unit Download PDFInfo
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- CN206767683U CN206767683U CN201720424621.1U CN201720424621U CN206767683U CN 206767683 U CN206767683 U CN 206767683U CN 201720424621 U CN201720424621 U CN 201720424621U CN 206767683 U CN206767683 U CN 206767683U
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 110
- 239000003546 flue gas Substances 0.000 title claims abstract description 109
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 95
- 230000023556 desulfurization Effects 0.000 title claims abstract description 95
- 239000002351 wastewater Substances 0.000 title claims abstract description 90
- 238000001704 evaporation Methods 0.000 title claims abstract description 56
- 230000008020 evaporation Effects 0.000 title claims abstract description 55
- 239000000945 filler Substances 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 238000009826 distribution Methods 0.000 claims description 23
- 238000012856 packing Methods 0.000 claims description 19
- 238000001035 drying Methods 0.000 claims description 14
- 238000004062 sedimentation Methods 0.000 claims description 13
- 238000000889 atomisation Methods 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 4
- 239000002910 solid waste Substances 0.000 abstract description 4
- 239000000779 smoke Substances 0.000 abstract 1
- 230000008719 thickening Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- 239000003245 coal Substances 0.000 description 3
- 239000012717 electrostatic precipitator Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
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- 239000010883 coal ash Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 239000004033 plastic Substances 0.000 description 1
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- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
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- 238000001556 precipitation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
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- Treating Waste Gases (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
A kind of flue gas desulfurization waste-water is concentrated by evaporation processing unit, it includes a tower body, water-distributing device, filler evaporation layer and tower basin are disposed with inside the tower body from top to bottom, the circulating pump that pipeline connects the tower basin and the water-distributing device respectively is provided with outside the tower body, the tower body is provided with smoke inlet between the filler evaporation layer and the tower basin, exhanst gas outlet is provided with above the water-distributing device, the tower basin is connected with desulfurization wastewater entrance, and the tower basin bottom is provided with dope outlet.A kind of flue gas desulfurization waste-water provided by the utility model is concentrated by evaporation processing unit, is evaporated using filler, can greatly improve desulfurization wastewater and be concentrated by evaporation efficiency, while can reduce the flue gas and the machinery of the desulfurization wastewater is carried；Greatly improve to desulfurization wastewater thickening efficiency.The zero-emission of desulfurization wastewater can be realized, while does not produce solid waste.
Description
Technical Field
The utility model relates to the technical field of environmental protection, in particular to flue gas desulfurization waste water evaporation and concentration processing apparatus.
Background
For the desulfurization wastewater generated after the coal-fired flue gas of a thermal power plant is treated, the traditional treatment method (triple box process) mainly comprises chemical treatment, mainly comprises the processes of neutralization, sedimentation, flocculation, concentration and clarification and the like, and after the chemical treatment of simple chemical-adding coagulation precipitation, the desulfurization wastewater still has the characteristics of high salt content, high corrosivity and the like, and can generate adverse effects on the environment no matter the desulfurization wastewater is directly discharged or is merged into a sewage plant of the city government. Therefore, the desulfurization wastewater needs to be concentrated, and the zero emission of the desulfurization wastewater is realized by performing filter pressing or evaporation on the basis of the concentration.
At present, the desulfurization wastewater concentration technology mainly adopts the following modes: firstly, a membrane permeation process is adopted, and the defects are high energy consumption and small concentration rate; the MVR concentration process is adopted, so that the equipment investment is large and the energy consumption is high; thirdly, the conventional flue gas evaporation process is adopted, the evaporation efficiency is low, and the equipment volume is large.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem, the utility model provides a flue gas desulfurization waste water evaporative concentration processing apparatus, it includes a tower body, the tower body is inside from last to having set gradually water distribution device, filler evaporation layer and tower pond down, the tower body outside is provided with and connects respectively through the pipeline the tower pond with the circulating pump of water distribution device, the tower body is in filler evaporation layer with be provided with the flue gas entry between the tower pond water distribution device top is provided with the flue gas export. The tower body is connected with a desulfurization waste water inlet, and the lower part of the tower tank is provided with a concentrated solution outlet.
Preferably, the flue gas inlet is connected to an upstream section of a boiler flue and the flue gas outlet is connected to a downstream section of the boiler flue.
Preferably, the desulfurization waste water inlet is arranged on the body of the tower body 1 or a channel communicated with the interior of the tower body.
Preferably, the filler evaporation layer is composed of a filler and a support structure.
Preferably, the filler and the support structure are an integrally made structure.
Preferably, the packing is structured packing or random packing.
Preferably, the filler is one or more trays.
Preferably, the packing is corrugated packing or wire mesh packing or spherical packing or honeycomb packing.
Preferably, the water distribution device is a water distribution tank or a water distribution pipe or a spraying device.
Preferably, the tower pond comprises a sedimentation pond and an overflow pond, and the sedimentation pond and the overflow pond are communicated through an overflow hole or an overflow pipe.
Preferably, the sedimentation tank is of an inverted cone type.
Preferably, the tower is connected in parallel or in series with the boiler flue.
Preferably, the concentrated solution outlet is connected with a flue gas evaporation device, the flue gas evaporation device at least comprises an evaporator specially used for mixing and heating flue gas, and a pressure water pump and a pipeline which are connected with the evaporator, a flue gas inlet of the evaporator is connected with a front or rear high-temperature flue of an air preheater, and an outlet of the evaporator is connected with a front flue of an inlet of an electric dust collector; an atomization drying device is arranged in the evaporator. And the pressure water pump is respectively connected with the concentrated solution outlet and the atomization drying device.
Preferably, the atomizing and drying device is a high-speed centrifugal atomizing disc.
The flue gas desulfurization wastewater evaporative concentration treatment device provided by the utility model adopts filler evaporation, so that the evaporative concentration efficiency of desulfurization wastewater can be greatly improved, and the mechanical carrying of flue gas on the desulfurization wastewater can be reduced; after the flue gas is washed by the tower body, part of SO can be removedXAnd particulate matter, and the like; and partial desulfurization wastewater can be recovered through the desulfurization absorption tower, so that the process water consumption is reduced. Rely on the utility model provides a desulfurization waste water tower body with flue gas evaporation to dryness device can realize desulfurization waste water's zero release, does not produce solid waste simultaneously, realizes energy-conservation, water conservation, zero release's purpose.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
FIG. 1 is a schematic structural diagram of an evaporative concentration treatment apparatus for flue gas desulfurization wastewater according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a modified embodiment based on FIG. 1;
FIG. 3 is a schematic structural diagram of the use principle of the flue gas desulfurization wastewater evaporative concentration treatment device shown in FIG. 1.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
FIG. 1 is a schematic structural diagram of an evaporative concentration treatment apparatus for flue gas desulfurization wastewater according to an embodiment of the present invention; referring to fig. 1, the utility model provides a flue gas desulfurization waste water evaporative concentration processing apparatus, it includes a tower body 1, 1 inside from last to having set gradually water distribution device 4, filler evaporation layer 3 and tower pond 5 down of tower body, 1 outside of tower body is provided with and connects respectively through the pipeline tower pond 5 with water distribution device 4's circulating pump 2, tower body 1 is in filler evaporation layer 3 with be provided with flue gas inlet 8 between the tower pond 5 water distribution device 4 top is provided with flue gas export 9. The tower body 1 is connected with a desulfurization waste water inlet 6, and the lower part of the tower tank 5 is provided with a concentrated solution outlet 7.
The desulfurization waste water inlet 6 can be arranged on the body of the tower body 1 and connected with the tower pool 5 (as shown in the figure), and also can be arranged on a pipeline connected with the circulating pump 2 or other channels communicated with the inside of the tower body, as long as the desulfurization waste water can be conveyed into the tower body 1, of course, the desulfurization waste water inlet 6 can also be arranged on a pipeline connected with the flue gas inlet 8, so that the desulfurization waste water can exchange heat with the flue gas in the process of flowing into the tower body 1.
The utility model provides a flue gas desulfurization waste water evaporation concentration processing apparatus, when using, can be parallelly connected with boiler flue, that is to say, flue gas entry 8 is connected with boiler flue's upper reaches section 10, exhanst gas outlet 9 with boiler flue's downstream section 11 is connected. Therefore, the flue gas can be introduced into the tower body 1 from the upstream section 10 of the boiler flue, and enters the downstream section 11 of the boiler flue after exchanging heat with the desulfurization wastewater and evaporating in the tower body 1. Viewed from the flow direction of the flue gas, the upstream section 10 and the downstream section 11 of the boiler flue are respectively positioned at the upstream and the downstream of the flue gas flow, and the flue gas temperature of the upstream section 10 of the boiler flue is high, and the flue gas temperature of the downstream section 11 of the boiler flue is low. The desulfurization wastewater to be concentrated enters the tower body 1 through the desulfurization wastewater inlet 6 and enters the tower tank 5, the desulfurization wastewater in the tower tank 5 flows into the water distribution device 4 under the driving of the circulating pump 2, the desulfurization wastewater is uniformly distributed to the filler evaporation layer 3 by the water distribution device 4, and the desulfurization wastewater flows downwards along the filler evaporation layer 3 under the action of gravity; flue gas is followed boiler flue upper reaches section 10 draws the warp flue gas entry 8 gets into in the tower body 1, and the flow passes through filler evaporation layer 4, the flue gas with desulfurization waste water is in heat transfer in the filler evaporation layer 3, desulfurization waste water part is evaporated and is sneaked into the flue gas, flue gas humidity increases and carries partial steam warp the exhanst gas outlet 9 flows out tower body 1 and gets into boiler flue downstream section, desulfurization waste water is because of partial evaporation concentration decrement, falls into downwards the tower pond. Under the drive of circulating pump 2, desulfurization waste water is through many times of circulation evaporation, and the concentration can be higher and higher, and the volume is less and less, passes through when reaching certain concentration concentrate export 7 discharges the tower body 1.
The concentrated solution outlet 7 is disposed at the lower portion of the tower tank 5, that is, the concentrated solution outlet 7 may be disposed at the bottom of the tower tank 5, or may be disposed at a lower portion (i.e., near the bottom) of the sidewall of the tower tank 5, as long as it is convenient for the concentrated solution generated after the concentration of the desulfurization waste water to flow out.
Because the filler evaporation layer 3 can increase the heat exchange area of the desulfurization wastewater and prolong the retention time of the desulfurization wastewater, the heat exchange and evaporation of the flue gas and the desulfurization wastewater can be greatly improved, and the concentration efficiency of the desulfurization wastewater is greatly improved. Meanwhile, the filler evaporation layer 3 can reduce the mechanical carrying of the flue gas on the desulfurization wastewater, so that the pollution of chloride ions or other impurities in the desulfurization wastewater on the flue gas is reduced. In addition, after the flue gas is washed by the filler evaporation layer 3 and the desulfurization wastewater, part of SO can be removedXAnd impurities such as particles.
The flue gas flows through the filler evaporation layer 3 from bottom to top, the desulfurization wastewater flows through the filler evaporation layer 3 from top to bottom, and the flue gas and the desulfurization wastewater are in a countercurrent heat exchange mode in the filler evaporation layer 3; it will be understood by those skilled in the art that in practical use, the flue gas and the desulfurization waste water can be concentrated by exchanging the positions of the flue gas inlet 8 and the flue gas outlet 9 so that the flue gas and the desulfurization waste water are in concurrent heat exchange in the filler evaporation layer 3. But the countercurrent heat exchange mode is higher in heat exchange efficiency and less in mechanical carrying of the flue gas compared with the concurrent heat exchange mode.
The filler evaporation layer 3 can be composed of a filler and a support structure, and the filler and the support structure can be detachable structures or integrally manufactured structures; the filler can be regular filler, random filler or tray; the packing can be corrugated packing, so that the heat exchange efficiency is higher. Of course, the filler can also be selected from a wire mesh filler, a spherical filler, a honeycomb filler and the like; the filler can be made of polytetrafluoroethylene plastic, so that the filler has the advantages of good corrosion resistance, difficult scaling and the like, and can also be made of stainless steel or titanium metal or other corrosion-resistant materials; in order to facilitate the assembly and disassembly of the filler evaporation layer 3, a detachable loading and unloading window (not shown in the figure) can be arranged on the tower body 1 corresponding to the filler evaporation layer 3.
The water distribution device 4 can be a water distribution tank structure, so that the water distribution device has the advantages of uniform water distribution, blockage resistance, good anti-scaling performance and the like, and can also adopt structures such as a water distribution pipe, a nozzle and the like.
FIG. 2 is a schematic structural diagram of a modified embodiment based on FIG. 1; referring to fig. 2, in a modified embodiment, the tower 5 may include a settling tank 12 and an overflow tank 13, that is, the settling tank 12 may be an inverted cone in the tower 1; the space between the side wall of the settling tank 12 and the side wall of the tower body 1 is the overflow tank 13. The upper part of the side wall of the sedimentation tank 12 can be provided with overflow holes or overflow pipes, so that the sedimentation tank 12 and the overflow tank 13 can be communicated through the overflow holes or the overflow pipes. The lower part of the sedimentation tank 12 is connected with the concentrated solution outlet 7, and the overflow tank 13 is connected with the circulating pump 2 through a pipeline. The desulfurization waste water falling from the filler evaporation layer 3 firstly falls into the sedimentation tank 12, and solid matters in the desulfurization waste water are precipitated in the sedimentation tank 12 and then discharged through the concentrated solution outlet 7. The desulfurization wastewater with a small solid content in the upper part of the sedimentation tank 12 flows into the overflow tank 13 through an overflow hole or an overflow pipe, and the desulfurization wastewater in the overflow tank 13 is pumped into the water distribution device 4 through the circulating pump 2 to be circularly heated and evaporated.
Fig. 3 is a schematic diagram of the principle of use structure of the flue gas desulfurization wastewater evaporative concentration processing apparatus shown in fig. 1, and as shown in fig. 3, in a preferred embodiment, the flue gas inlet 8 of the tower body 1 is connected with the upstream section 10 of the boiler flue, which is the flue after the outlet of the boiler induced draft fan 15, through a pipeline, the flue gas outlet 9 of the tower body 1 is connected with the flue gas inlet of the desulfurization absorption tower 16, which is the downstream section 11 of the boiler flue, through the tower body 1, the flue gas entering the tower body 1 is the flue gas after the boiler induced draft fan 15, and is sent into the desulfurization absorption tower 16 after passing through the tower body 1, and the desulfurization wastewater is mixed with the moisture of the flue gas through evaporation, and is recovered through the desulfurization absorption tower 16 (actually, the moisture evaporation of the desulfurization absorption tower is reduced. In this embodiment, the tower body 1 and the pipeline connected thereto are connected in parallel as a bypass with the boiler flue between the outlet of the induced draft fan 15 and the inlet of the desulfurization absorption tower 16, and the flue gas at the outlet of the induced draft fan 15 flows through the tower body 1. Considering that the resistance of bypass is big than boiler flue internal resistance, for balanced pressure can set up fan 19 on the 1 flue gas inlet pipeline of tower body, simultaneously 1 flue gas inlet of tower body sets up flue gas inlet baffle 20 set up flue gas outlet baffle 21 on the tower body outlet flue, through adjusting fan 19 rotational speed or flue gas inlet baffle 20 or flue gas outlet baffle 21 can adjust and get into the flue gas volume and the velocity of flow of tower body 1 to the resistance in the control tower body 1 can compromise the mechanical of control flue gas to desulfurization waste water simultaneously and carry.
Of course, a fan may also be arranged on the pipeline of the flue gas outlet 9 of the tower body 1, but this solution will have high requirements for fan material selection. When the evaporation capacity is large, the tower body 1 can be selected to be connected in series in the boiler flue 18, all flue gas from the outlet of the induced draft fan 15 flows through the tower body 1 uniformly, and at the moment, in order to control the flow rate of the flue gas in the tower body 1 to reduce the carrying, the section of the tower body 1 needs to be large. In order to reduce the mechanical carrying of flue gas, tower body 1 the exhanst gas outlet can set up the defroster device, in this embodiment, adopts control flue gas velocity of flow, optimizes the flow field, reduces the mechanical carrying of flue gas, so does not set up the defroster, in addition, can adopt ripple packing itself to possess stronger defogging ability in this embodiment.
In a preferred embodiment, a feed pump 22 and a wastewater feed valve 23 may be provided on the pipe of the desulfurization wastewater inlet 6. By adjusting the wastewater feed valve 23 or the feed pump 22, the desulfurization wastewater entering the tower body 1 can be controlled, and the liquid level of the tower tank 5 can be maintained.
In a preferred embodiment, the concentrated solution outlet 7 is connected with a flue gas evaporation device, the flue gas evaporation device at least comprises an evaporator 25 specially used for mixing and heating flue gas and a pressure water pump 26 connected with the evaporator 25, an inlet flue of the evaporator 25 is connected with an outlet flue of an air preheater 27 (if the concentrated solution to be evaporated to dryness needs a large amount, the concentrated solution can be connected with a high-temperature flue in front of the air preheater or a denitration device), and an outlet of the evaporator 25 is connected with an inlet flue of an electric dust remover 28 (if a low-temperature coal economizer is arranged in front of the electric dust remover, the low-temperature coal economizer is connected with a front flue of the low-temperature coal economizer); an atomization drying device 29 is arranged in the evaporator 25. Concentrate export 7 with be provided with pressure water pump 26 on the pipeline between the flue gas evaporation to dryness device, the concentrate warp pressure water pump 26 certainly concentrate export 7 is taken out and is sent to after the pressurization atomizing drying device 29, atomizing drying device 29 can be atomizer, the concentrate warp atomizing drying device 29 atomizes the blowout and with the high temperature flue gas mixes and the evaporation to dryness, and chloride ion and other matter combinations and other particulate matters follow the high temperature flue gas gets into electrostatic precipitator 28 the effect of electrostatic precipitator 28 is got rid of down and is mixed with the coal ash, can reduce or avoid the production of solid useless. In this embodiment, the original flue is utilized and the atomization drying device 29 is additionally arranged as the evaporator 25, the evaporator 25 is connected in series with the outlet flue of the air preheater 27, all flue gas in the outlet flue of the air preheater 27 flows through the evaporator 25, and the evaporation drying effect is good due to the large amount of flue gas. The evaporator 25 can also be a container independent of the original flue, the evaporator 25 and the pipeline connected with the evaporator are connected in parallel with the outlet flue of the air preheater as a flue gas bypass, and the flue gas part at the outlet of the air preheater flows through the evaporator 25, so that the scheme needs higher flue gas temperature. In this example atomizing drying device 29 adopts the atomizing nozzle, and atomization effect is good, can reduce evaporation to dryness time and flow, reduces the possibility that the water droplet directly gets into in the electrostatic precipitator and causes equipment to harm. The atomization drying device can also adopt a high-speed centrifugal atomizing disk.
In a preferred embodiment, the post-treatment device for the desulfurization wastewater can also be a sludge pump and a sludge filter-pressing device (the sludge pump and the sludge filter-pressing device can also be integrated), and the concentrated solution is pumped from the concentrated solution outlet to the sludge filter-pressing device for dehydration, filter-pressing and solidification, but solid waste can be generated in the scheme.
The utility model adopts filler evaporation, which can greatly improve the efficiency of evaporative concentration of the desulfurization wastewater and reduce the mechanical carrying of the flue gas on the desulfurization wastewater; after the flue gas is washed by the tower body, part of SO can be removedXAnd particulate matter, and the like; and partial desulfurization wastewater can be recovered through the desulfurization absorption tower, so that the process water consumption is reduced. Rely on the utility model provides a desulfurization waste water tower body with flue gas evaporation to dryness device can realize desulfurization waste water's zero release, does not produce solid waste simultaneously, realizes energy-conservation, water conservation, zero release's purpose.
Claims (14)
1. The utility model provides a flue gas desulfurization waste water evaporative concentration processing apparatus, its characterized in that, it includes a tower body, the tower body is inside from last to having set gradually water distribution device, filler evaporation layer and tower pond down, the tower body outside is provided with and connects respectively through the pipeline the tower pond with the circulating pump of water distribution device, the tower body is in filler evaporation layer with be provided with the flue gas entry between the tower pond water distribution device top is provided with the flue gas export, the tower body is connected with the desulfurization waste water entry, tower pond lower part is provided with the dense fluid export.
2. The evaporative concentration treatment apparatus for flue gas desulfurization wastewater as set forth in claim 1, wherein the flue gas inlet is connected to an upstream section of a boiler flue, and the flue gas outlet is connected to a downstream section of the boiler flue.
3. The evaporative concentration treatment device for flue gas desulfurization wastewater as set forth in any one of claims 1 and 2, wherein the desulfurization wastewater inlet is provided in the body of the tower body 1 or in a passage communicating with the inside of the tower body.
4. The evaporative concentration treatment device for flue gas desulfurization wastewater as set forth in one of claims 1 and 2, wherein the filler evaporation layer is composed of a filler and a support structure.
5. The evaporative concentration treatment apparatus for flue gas desulfurization wastewater as set forth in claim 4, wherein the filler and the support structure are of an integrally formed structure.
6. The evaporative concentration treatment device for flue gas desulfurization wastewater as recited in claim 4, wherein the packing is structured packing or random packing.
7. The evaporative concentration treatment device for flue gas desulfurization wastewater as set forth in one of claims 1 and 2, wherein the filler is one or more than one tray.
8. The evaporative concentration treatment device for flue gas desulfurization wastewater as recited in claim 4, wherein the packing is corrugated packing, wire mesh packing, spherical packing or honeycomb packing.
9. The evaporative concentration treatment device for flue gas desulfurization wastewater as recited in one of claims 1 and 2, wherein the water distribution device is a water distribution tank or a water distribution pipe or a spraying device.
10. The evaporative concentration treatment device for flue gas desulfurization wastewater as set forth in one of claims 1 and 2, wherein the tower tank comprises a sedimentation tank and an overflow tank, and the sedimentation tank and the overflow tank are communicated through an overflow hole or an overflow pipe.
11. The evaporative concentration treatment device for flue gas desulfurization wastewater as recited in claim 10, wherein the sedimentation tank is in an inverted cone shape.
12. The evaporative concentration treatment device for flue gas desulfurization wastewater as recited in claim 2, wherein the tower body is connected in parallel or in series with the boiler flue.
13. The flue gas desulfurization wastewater evaporative concentration treatment device as claimed in one of claims 1 and 2, wherein the concentrated solution outlet is connected with a flue gas evaporation device, the flue gas evaporation device at least comprises an evaporator specially used for mixing and heating flue gas, and a pressure water pump and a pipeline connected with the evaporator, a flue gas inlet of the evaporator is connected with a front or rear high-temperature flue of an air preheater, and an outlet of the evaporator is connected with a front flue of an inlet of an electric dust remover; an atomization drying device is arranged in the evaporator, and the pressure water pump is respectively connected with the concentrated solution outlet and the atomization drying device.
14. The evaporative concentration treatment device for flue gas desulfurization wastewater as recited in claim 13, wherein the atomizing and drying device is a high-speed centrifugal atomizing disk.
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| CN201720424621.1U CN206767683U (en) | 2017-04-21 | 2017-04-21 | A kind of flue gas desulfurization waste-water is concentrated by evaporation processing unit |
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| CN201720424621.1U CN206767683U (en) | 2017-04-21 | 2017-04-21 | A kind of flue gas desulfurization waste-water is concentrated by evaporation processing unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109775791A (en) * | 2019-03-20 | 2019-05-21 | 上海发电设备成套设计研究院有限责任公司 | A kind of the desulfurization wastewater concentration reducing device and processing method of automatic desludging |
| CN110980843A (en) * | 2019-11-15 | 2020-04-10 | 大唐华银电力股份有限公司耒阳分公司 | Dry crystallization device of flue gas desulfurization waste water in advance of coal power plant |
| CN113184932A (en) * | 2021-04-26 | 2021-07-30 | 武汉天空蓝环保科技有限公司 | Utilize flue gas evaporative concentration device and desulfurization effluent disposal system |
| CN115304116A (en) * | 2022-06-17 | 2022-11-08 | 华电电力科学研究院有限公司 | High-salinity wastewater concentration treatment device and method based on enhanced natural evaporation |
-
2017
- 2017-04-21 CN CN201720424621.1U patent/CN206767683U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109775791A (en) * | 2019-03-20 | 2019-05-21 | 上海发电设备成套设计研究院有限责任公司 | A kind of the desulfurization wastewater concentration reducing device and processing method of automatic desludging |
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