CN204097264U - A kind of device of desulfurization wastewater zero release - Google Patents
A kind of device of desulfurization wastewater zero release Download PDFInfo
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- CN204097264U CN204097264U CN201420456684.1U CN201420456684U CN204097264U CN 204097264 U CN204097264 U CN 204097264U CN 201420456684 U CN201420456684 U CN 201420456684U CN 204097264 U CN204097264 U CN 204097264U
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- waste water
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- 239000002351 wastewater Substances 0.000 title claims abstract description 125
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 41
- 230000023556 desulfurization Effects 0.000 title claims abstract description 38
- 239000010881 fly ash Substances 0.000 claims abstract description 34
- 239000000706 filtrate Substances 0.000 claims description 18
- 239000000428 dust Substances 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 8
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 6
- 239000010419 fine particle Substances 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 6
- 229910001410 inorganic ion Inorganic materials 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 21
- 150000002500 ions Chemical class 0.000 description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 13
- 239000003546 flue gas Substances 0.000 description 13
- 239000002245 particle Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 239000003500 flue dust Substances 0.000 description 9
- 239000007787 solid Substances 0.000 description 9
- 238000000926 separation method Methods 0.000 description 6
- 238000004062 sedimentation Methods 0.000 description 5
- 238000000889 atomisation Methods 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000012717 electrostatic precipitator Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000036642 wellbeing Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Physical Water Treatments (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a kind of device of desulfurization wastewater zero release.In prior art, desulfurization wastewater needs to carry out purifying treatment and could discharge water body.The utility model provides a kind of device of desulfurization wastewater zero release, is made up of desulphurization system, two-section type waste-water vortex device, ultrasonic wave atomizing nozzle, fly-ash separator, waste water pump and waste water transferpump; Described two-section type waste-water vortex device comprises the sub-body of eddy flow, upflow tube and filter screen; Described cyclone inlets is all connected with desulphurization system with underflow opening, and described overflow port is connected with ultrasonic wave atomizing nozzle; Described fly-ash separator is provided with inlet flue duct; Described ultrasonic wave atomizing nozzle is connected with the inlet flue duct of fly-ash separator, and described fly-ash separator is connected with desulphurization system.The utility model reasonable in design, arranges outward without waste water, saves water resources, saves space, saves cost, effectively can remove the inorganic ion in waste water and heavy metal ion.
Description
Technical field
The utility model relates to a kind of device of desulfurization wastewater zero release, for the control of contaminated wastewater.
Background technology
Along with the increasingly stringent of national environmental protection policy, most of in-service fired power generating unit and newly-built fired power generating unit are provided with flue gas desulfurization (FGD) unit, ensure boiler smoke qualified discharge.At present, coal fired power plant flue gas desulfurization application of installation is Limestone-gypsum Wet Flue Gas Desulfurization Process technique the most widely, the Main By product of this technique is desulfurated plaster and desulfurization wastewater, its desulfurization wastewater contains a large amount of impurity, as suspended substance, inorganic ion, heavy metal ion etc., needing to carry out purifying treatment could discharge water body.
The world today, water scarcity, if adopt certain technique that desulfurization wastewater is become resource circulation utilization, will be the thing of the society that promotes the well-being of mankind.Desulfuration waste water treatment process basic step neutralizes nothing more than, flocculate, precipitate and outer row.Many desulfuration waste water treatment process newly developed in recent years, as techniques such as evaporation, reuse, clarifications, although this kind of technique can have certain effect to the recycling of desulfurization wastewater, but problem is also many, such as need that newly-increased large number quipments facility, floor space are large, investment is large, technical process is complicated, equipment failure rate is high, operating performance is undesirable, dehydrating effect is not good, specific resistance to filtration is inconvenient, there is waste water arranges phenomenon etc. outward.If these problems can not get good solution, the industrial application of various desulfuration waste water treatment process will be had a strong impact on.
Authorized announcement date is on 07 17th, 2013, Authorization Notice No. is in the Chinese patent of CN 102180549 B, disclose a kind of zero emission treatment of desulfured waste water, comprise the following steps: 1) desulfurization wastewater after thionizer desulfurization is entered preliminary sedimentation tank, through initial gross separation in preliminary sedimentation tank, isolated upper clear supernate is transported in Buffer Pool through slush pump; 2) by the desulfurization wastewater in Buffer Pool successively by atomisation unit and electrostatic precipitator; 3) waste water larger for preliminary sedimentation tank bottom solid content is transported to sludge buffer pool through sludge pump, the waste water that the solid content in sludge buffer pool is larger is transported to pressure filter through another sludge pump; 4) waste water after filtration is sent back in preliminary sedimentation tank through slush pump.This zero emission treatment of desulfured waste water needs to adopt preliminary sedimentation tank and Buffer Pool, its floor space is large, specific resistance to filtration is inconvenient, and be equiped with strainer in waste water transport pipe, easily cause line clogging, pipeline in addition between high-pressure pump and atomizing nozzle is provided with well heater, increases energy consumption and cost.
Utility model content
The purpose of this utility model is to overcome above shortcomings in prior art, and provides a kind of reasonable in design, arranges outward without waste water, save water resources, save space, save cost, effectively can remove the device of the desulfurization wastewater zero release of inorganic ion in waste water and heavy metal ion.
The technical scheme in the invention for solving the above technical problem is: the device of this desulfurization wastewater zero release, it is characterized in that: by desulphurization system, there is the two-section type waste-water vortex device of fine particle classification removal and overflow filtering function, for waste water being atomized into the ultrasonic wave atomizing nozzle of the droplet carrying a large amount of electric negative ion, for removing the fly-ash separator of inorganic salt and dust, waste water for desulphurization system being produced is transported to the waste water pump of two-section type waste-water vortex device and is used for the waste water that the overflow port of upflow tube overflows to be transported to the waste water transferpump composition of ultrasonic wave atomizing nozzle, described two-section type waste-water vortex device comprises the sub-body of eddy flow, upflow tube and filter screen, the sub-body of described eddy flow is provided with cyclone inlets and underflow opening, described underflow opening is positioned at the bottom of the sub-body of eddy flow, described upflow tube is arranged on the sub-body of eddy flow, described upflow tube is provided with filtrate chamber, described filter screen is arranged in filtrate chamber, and described upflow tube has overflow port, and the overflow port of upflow tube is positioned on filtrate chamber and the sub-body of eddy flow, described cyclone inlets is all connected with desulphurization system with underflow opening, and described overflow port is connected with ultrasonic wave atomizing nozzle, described fly-ash separator is provided with inlet flue duct, described ultrasonic wave atomizing nozzle is connected with the inlet flue duct of fly-ash separator, described fly-ash separator is connected with desulphurization system, above-mentioned connection all adopts pipeline to connect, described waste water pump is arranged on the pipeline between desulphurization system and cyclone inlets, and described waste water transferpump is arranged on the pipeline between upflow tube and ultrasonic wave atomizing nozzle.The utility model reasonable in design, solves the process handling problems of desulfurization wastewater, and waste water circulates at the device of desulfurization wastewater zero release, and whole device does not have waste water to arrange outward, saves water resources; Two-section type waste-water vortex device instead of common waste-water vortex device, three headers and medicine system etc., and does not need newly-increased structure (building) building, saves space, saves cost; Solve conventional waste water swirler solid-liquor separation effect undesirable, cause the problem of eddy flow blocking; Cancel the plate and frame(type)filter press in common process, decrease investment and equipment failure rate; Can effectively improve fly-ash separator efficiency of dust collection, and not affect fly-ash separator and normally run; Effectively can remove the inorganic ion in waste water and heavy metal ion.
Filter screen described in the utility model is from the bottom up in drawing shape in, and the bottom of described filter screen and the tube wall of upflow tube are fitted.The upper dimension of filter screen is designed to corresponding size according to actual needs, and ensure that overflow filtrate solid content is less than 0.5%, filter screen can filter out the fine particle that particle diameter is greater than 5um, and plays rectifying action, is convenient to clean.
Filter screen described in the utility model is that abrasion-proof corrosion-proof corrosion material is made.
Ultrasonic wave atomizing nozzle described in the utility model comprises ultrasonic generator and atomizing nozzle, and described ultrasonic generator is connected with atomizing nozzle.Ultrasonic generator can make waste water be atomized by high-frequency vibration, and in atomization process, discharge a large amount of electric negative ions, atomizing nozzle is sent into the inlet flue duct of fly-ash separator again, electricity negative ion is combined with flue dust and realizes pre electrified, small droplet is dried very soon in high-temperature flue gas stream, in droplet, inorganic salt are separated out and are formed particle, and play the effect of cooling, humidification to flue gas.
A treatment process for the device of desulfurization wastewater zero release, is characterized in that: its step is as follows:
(1) desulfurization wastewater that desulphurization system produces is delivered to two-section type waste-water vortex device through waste water pump;
(2) through the waste water of two-section type waste-water vortex device process, a part returns desulphurization system from underflow opening, and another part enters next link by the filtration in upflow tube;
(3) filtered by upflow tube, make the suspended particle particle diameter of overflow filtrate be less than 5um, solid content is less than 0.5%, then by waste water transferpump, overflow filtrate is delivered to ultrasonic wave atomizing nozzle;
(4) waste water is atomized into the small droplet of below 10um by ultrasonic wave atomizing nozzle, produces a large amount of electric negative ion simultaneously, and sprays into the inlet flue duct of fly-ash separator;
(5) atomized particles is dried under the effect of the high-temperature flue gas of inlet flue duct, and enters fly-ash separator with flue gas;
(6) electric negative ion and flue dust generation electrostatic react, and make flue dust carry out pre electrified, promote flue dust cohesion;
(7) in waste water, inorganic salt and dust are removed in fly-ash separator, and waste water by fly-ash separator, then enters desulphurization system with the form of steam of purifying waste water;
(8) waste water that desulphurization system produces circulates through above-mentioned steps, reaches desulphurization system wastewater zero discharge.
The utility model compared with prior art, has the following advantages and effect: structure is simple, and reasonable in design, solve the process handling problems of desulfurization wastewater, waste water circulates at the device of desulfurization wastewater zero release, and whole device does not have waste water to arrange outward, saves water resources; Two-section type waste-water vortex device instead of common waste-water vortex device, three headers and medicine system etc., and does not need newly-increased structure (building) building, saves space, saves cost; Solve conventional waste water swirler solid-liquor separation effect undesirable, cause the problem of eddy flow blocking; Cancel the plate and frame(type)filter press in common process, decrease investment and equipment failure rate; Can effectively improve fly-ash separator efficiency of dust collection, and not affect fly-ash separator and normally run; Effectively can remove the inorganic ion in waste water and heavy metal ion.
Accompanying drawing explanation
Fig. 1 is the schema of the device of desulfurization wastewater zero release in the utility model embodiment.
Fig. 2 is the structural representation of two-section type waste-water vortex device.
Embodiment
Below in conjunction with accompanying drawing, also by embodiment, the utility model is described in further detail, and following examples are that the utility model is not limited to following examples to explanation of the present utility model.
Embodiment 1.
See Fig. 1 to Fig. 2, the device of the desulfurization wastewater zero release of the present embodiment is made up of desulphurization system 1, two-section type waste-water vortex device 2, ultrasonic wave atomizing nozzle 3, fly-ash separator 4, waste water pump 5 and waste water transferpump 6.
Two-section type waste-water vortex device 2 in the present embodiment comprises the sub-body 21 of eddy flow, upflow tube 22 and filter screen 23, the sub-body 21 of eddy flow has fine particle classification and removes function, and upflow tube 22 has overflow filtering function, the sub-body 21 of eddy flow is provided with cyclone inlets 24 and underflow opening 25, underflow opening 25 is positioned at the bottom of the sub-body 21 of eddy flow, upflow tube 22 is arranged on the sub-body 21 of eddy flow, upflow tube 22 is provided with filtrate chamber 26, filter screen 23 is arranged in filtrate chamber 26, upflow tube has overflow port 27, the overflow port 27 of upflow tube 22 is positioned on filtrate chamber 26 and the sub-body 21 of eddy flow, the bottom of upflow tube 22 is positioned at the sub-body 21 of eddy flow, the bottom of upflow tube 22 is positioned at the top of the sub-body 21 of eddy flow, after desulfurization wastewater enters the sub-body 21 of eddy flow from cyclone inlets 24, solid-liquid separation is carried out in the sub-body 21 of eddy flow, the waste water that eddy flow body 21 bottom solid content is larger is discharged through underflow opening 25, and certainly flow back to desulphurization system 1, solid content less waste water outflow in eddy flow body 21 top enters upflow tube 22, overflow is when filter screen 23, carry out degree of depth solid-liquid separation, diameter of particle in filtrate is made to be less than 5 um, filtrate solid content is less than 0.5%, last overflow filtrate is discharged through overflow port 27.
Cyclone inlets 24 in the present embodiment is all connected with desulphurization system with underflow opening 25, and overflow port 27 is connected with ultrasonic wave atomizing nozzle 3; Fly-ash separator 4 is provided with inlet flue duct 41; Ultrasonic wave atomizing nozzle 3 is connected with the inlet flue duct 41 of fly-ash separator 4, fly-ash separator 4 is connected with desulphurization system 1, above-mentioned connection all adopts pipeline to connect, waste water pump 5 is arranged on the pipeline between desulphurization system 1 and cyclone inlets 24 and waste water for desulphurization system 1 being produced is transported to two-section type waste-water vortex device 2, and waste water transferpump 6 is arranged on the pipeline between upflow tube 22 and ultrasonic wave atomizing nozzle 3 and waste water for being overflowed by the overflow port 27 of upflow tube 22 is transported to ultrasonic wave atomizing nozzle 3.
Filter screen 23 in the present embodiment is from the bottom up in drawing shape in, the bottom of filter screen 23 and the tube wall of upflow tube 22 are fitted, the upper dimension of filter screen 23 is designed to corresponding size according to actual needs, and preferably, filter screen 23 is round table-like, ensure that overflow filtrate solid content is less than 0.5%, filter screen 23 can filter out the fine particle that particle diameter is greater than 5um, and plays rectifying action, is convenient to clean, filter screen 23 is made, to extend its work-ing life for abrasion-proof corrosion-proof corrosion material.
Ultrasonic wave atomizing nozzle 3 in the present embodiment comprises ultrasonic generator 31 and atomizing nozzle 32, ultrasonic generator 31 is connected with atomizing nozzle 32, ultrasonic generator 31 can make waste water be atomized by high-frequency vibration, and in atomization process, discharge a large amount of electric negative ions, waste water after atomization is sent in the inlet flue duct 41 of fly-ash separator 4 by atomizing nozzle 32 again, electricity negative ion and flue dust combine and realize pre electrified in inlet flue duct 41, small droplet is dried very soon in high-temperature flue gas stream, in droplet, inorganic salt are separated out and are formed particle, and cooling is played to flue gas, the effect of humidification, precipitate particle and flue dust condense and enter fly-ash separator 4 with flue gas, remove with dust, do not affect fly-ash separator 4 normally to run, water vapour after purification enters desulphurization system 1 with flue gas, finally form desulfurization wastewater, desulfurization wastewater enters next circulation.
The apparatus structure of the desulfurization wastewater zero release in the present embodiment is reasonable in design, solves the process handling problems of desulfurization wastewater, and waste water circulates at the device of desulfurization wastewater zero release, and whole device does not have waste water to arrange outward, saves water resources; Two-section type waste-water vortex device 2 instead of common waste-water vortex device, three headers and medicine system etc., and does not need newly-increased structure (building) building, saves space, saves cost; Solve conventional waste water swirler solid-liquor separation effect undesirable, cause the problem of eddy flow blocking; Cancel the plate and frame(type)filter press in common process, decrease investment and equipment failure rate; Can effectively improve fly-ash separator efficiency of dust collection, and not affect fly-ash separator and normally run; Effectively can remove the inorganic ion in waste water and heavy metal ion.
A kind for the treatment of process of device of desulfurization wastewater zero release: its step is as follows:
(1) desulfurization wastewater that desulphurization system 1 produces is delivered to two-section type waste-water vortex device 2 through waste water pump 5;
(2) through the waste water that two-section type waste-water vortex device 2 processed, a part returns desulphurization system 1 from underflow opening, and another part enters next link by the filtration in upflow tube 22;
(3) filtered by upflow tube 22, make the suspended particle particle diameter of overflow filtrate be less than 5um, solid content is less than 0.5%, then by waste water transferpump 6, overflow filtrate is delivered to ultrasonic wave atomizing nozzle 3;
(4) waste water is atomized into the small droplet of below 10um by ultrasonic wave atomizing nozzle 3, produces a large amount of electric negative ion simultaneously, and sprays into the inlet flue duct 41 of fly-ash separator 4;
(5) atomized particles is dried under the effect of the high-temperature flue gas of inlet flue duct 41, and enters fly-ash separator 4 with flue gas;
(6) electric negative ion and flue dust generation electrostatic react, and make flue dust carry out pre electrified, promote flue dust cohesion;
(7) in waste water, inorganic salt and dust are removed in fly-ash separator 4, and waste water by fly-ash separator 4, then enters desulphurization system 1 with the form of steam of purifying waste water;
(8) waste water that desulphurization system 1 produces circulates through above-mentioned steps, reaches desulphurization system wastewater zero discharge.
Above content described in this specification sheets is only to the explanation of the utility model example.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from the content of the utility model specification sheets or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (4)
1. a device for desulfurization wastewater zero release, is characterized in that: by desulphurization system, have fine particle classification removal and overflow filtering function two-section type waste-water vortex device, for waste water being atomized into the ultrasonic wave atomizing nozzle of the droplet carrying a large amount of electric negative ion, the fly-ash separator being used for removing inorganic salt and dust, the waste water pump being used for the waste water that desulphurization system produces to be transported to two-section type waste-water vortex device and the waste water transferpump that is used for the waste water that the overflow port of upflow tube overflows to be transported to ultrasonic wave atomizing nozzle forms; Described two-section type waste-water vortex device comprises the sub-body of eddy flow, upflow tube and filter screen, the sub-body of described eddy flow is provided with cyclone inlets and underflow opening, described underflow opening is positioned at the bottom of the sub-body of eddy flow, described upflow tube is arranged on the sub-body of eddy flow, described upflow tube is provided with filtrate chamber, described filter screen is arranged in filtrate chamber, and described upflow tube has overflow port, and the overflow port of upflow tube is positioned on filtrate chamber and the sub-body of eddy flow; Described cyclone inlets is all connected with desulphurization system with underflow opening, and described overflow port is connected with ultrasonic wave atomizing nozzle; Described fly-ash separator is provided with inlet flue duct; Described ultrasonic wave atomizing nozzle is connected with the inlet flue duct of fly-ash separator, described fly-ash separator is connected with desulphurization system, above-mentioned connection all adopts pipeline to connect, described waste water pump is arranged on the pipeline between desulphurization system and cyclone inlets, and described waste water transferpump is arranged on the pipeline between upflow tube and ultrasonic wave atomizing nozzle.
2. the device of desulfurization wastewater zero release according to claim 1, is characterized in that: described filter screen is from the bottom up in drawing shape in, and the bottom of described filter screen and the tube wall of upflow tube are fitted.
3. the device of desulfurization wastewater zero release according to claim 1 and 2, is characterized in that: described filter screen is that abrasion-proof corrosion-proof corrosion material is made.
4. the device of desulfurization wastewater zero release according to claim 1, it is characterized in that: described ultrasonic wave atomizing nozzle comprises ultrasonic generator and atomizing nozzle, described ultrasonic generator is connected with atomizing nozzle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420456684.1U CN204097264U (en) | 2014-08-14 | 2014-08-14 | A kind of device of desulfurization wastewater zero release |
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| CN201420456684.1U CN204097264U (en) | 2014-08-14 | 2014-08-14 | A kind of device of desulfurization wastewater zero release |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163535A (en) * | 2014-08-14 | 2014-11-26 | 华电电力科学研究院 | Desulfurization wastewater zero discharge device and treatment method |
| CN105271459A (en) * | 2015-10-13 | 2016-01-27 | 南京常荣声学股份有限公司 | Waste-liquid polyphase separation apparatus and waste-liquid separation method |
| CN106630358A (en) * | 2017-01-23 | 2017-05-10 | 浙江大学 | Zero-release coupling humidifying dust-removing synergizing system and method for desulfurization wastewater |
-
2014
- 2014-08-14 CN CN201420456684.1U patent/CN204097264U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163535A (en) * | 2014-08-14 | 2014-11-26 | 华电电力科学研究院 | Desulfurization wastewater zero discharge device and treatment method |
| CN104163535B (en) * | 2014-08-14 | 2016-04-20 | 华电电力科学研究院 | A kind of device of desulfurization wastewater zero release and treatment process |
| CN105271459A (en) * | 2015-10-13 | 2016-01-27 | 南京常荣声学股份有限公司 | Waste-liquid polyphase separation apparatus and waste-liquid separation method |
| CN105271459B (en) * | 2015-10-13 | 2018-02-06 | 南京常荣声学股份有限公司 | A kind of waste liquid multi-phase separation device and its separation method |
| CN106630358A (en) * | 2017-01-23 | 2017-05-10 | 浙江大学 | Zero-release coupling humidifying dust-removing synergizing system and method for desulfurization wastewater |
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