CN104984589B - Wastewater treatment device based on wet desulphurization system - Google Patents
Wastewater treatment device based on wet desulphurization system Download PDFInfo
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- CN104984589B CN104984589B CN201510391885.7A CN201510391885A CN104984589B CN 104984589 B CN104984589 B CN 104984589B CN 201510391885 A CN201510391885 A CN 201510391885A CN 104984589 B CN104984589 B CN 104984589B
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- water
- filtrate
- water tank
- wastewater treatment
- filtrate water
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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 135
- 239000000706 filtrate Substances 0.000 claims abstract description 62
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 29
- 239000002351 wastewater Substances 0.000 claims abstract description 26
- 235000019738 Limestone Nutrition 0.000 claims abstract description 17
- 239000006028 limestone Substances 0.000 claims abstract description 17
- 230000023556 desulfurization Effects 0.000 claims abstract description 15
- 239000002002 slurry Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 18
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 17
- 239000010865 sewage Substances 0.000 claims description 13
- 239000002699 waste material Substances 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 4
- 238000007701 flash-distillation Methods 0.000 claims description 4
- 239000003317 industrial substance Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 239000006228 supernatant Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract 5
- 230000003009 desulfurizing effect Effects 0.000 abstract 2
- 239000010440 gypsum Substances 0.000 abstract 2
- 229910052602 gypsum Inorganic materials 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000005352 clarification Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 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
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention discloses a wastewater treatment device based on a wet desulphurization system. The wastewater treatment device comprises a gypsum hydrocyclone station, a recycling water tank, a vacuum belt fulter, a filtrate water defecator, a filtrate water clean-water tank, a limestone slurry circulating tank, a main system on desulfurization waste water treatment, a pressure filter, an outer-drainage treating system and a desulfurizing absorption tower. Upper-layer clean water coming out from the gypsum hydrocyclone station flows into the recycling water tank, the recycling water tank is connected with two branches of pipelines, one branch of recycling water is sent to the desulfurizing absorption tower, and the other branch of recycling water is sent to the limestone slurry circulating tank; the lower-layer wastewater coming out from the filtrate water defecator enters into the vacuum belt fulter, the filtrate passing through the vacuum belt fulter enters into the filtrate water defecator, and wet electric wastewater and gas-flue hydrophobic are also enter into the filtrate water defecator at the same tine. The wastewater treatment device based on the wet desulphurization system has the advantages that the pollution of the wastewater is decreased, and water consumption is lowered; the adaptability and the stability are good; the technological process is easy, and investment and cost on operation and maintenance are low; the effect of the filtrate water defecator is good.
Description
Technical field
The present invention relates to wastewater treatment equipment, more specifically, it is related to a kind of wastewater treatment based on wet desulfurization system
Device.
Background technology
At present, it is to meet tightened up environmental requirement, many coal-burning power plants arrange wet-esp after desulfuration absorbing tower
System (hereinafter referred to as wet electricity).Wet electricity needs a large amount of flushing waters, the partial flushing water to wash away after pole plate, flows out from ash bucket, portion
Divide and recycle, part is outer to be lined up as wet electric waste water.The effluent part contain more float (concentration typically 2000～
Between 4000mg/L), pH value is between 4～6, it is impossible to directly utilize.If in entering the waste water system of other devices, Shi Bizeng
Plus pollution, cause water consume to increase, and the water balance of miscellaneous equipment is destroyed, affect equipment operation.
The content of the invention
The purpose of the present invention is to overcome deficiency of the prior art, there is provided a kind of rational in infrastructure, reduces contaminated wastewater, is reduced
The wastewater treatment equipment based on wet desulfurization system of water consume.
This wastewater treatment equipment based on wet desulfurization system, including Gypsum Fibrosum rotational flow station, reuse water tank, vacuum belt be de-
Water dispenser, filtrate water clarifier, filtrate water filtered water tank, lime stone slurry circulating box, desulfurization wastewater process main system, pressure filter, outer
Disintegrating system in waste pipe and desulfuration absorbing tower；The upper strata clear water stood out from Gypsum Fibrosum eddy flow flow to reuse water tank, is connect by reuse water tank
Two-way pipeline, recycle-water is delivered to all the way desulfuration absorbing tower, and lime stone slurry circulating box is delivered on another road；Go out from Gypsum Fibrosum rotational flow station
The lower floor's sewage for coming enters vacuum belt dewaterer, and the filtrate after vacuum belt dewaterer then enters filtrate water clarifier,
Simultaneously wet electric waste water and flue are hydrophobic also into filtrate water clarifier, divide three tunnels from filtrate water clarifier liquid out, all the way
It is all the way bottom sewage into filtrate water filtered water tank for overflow water, is all the way bed mud, into filter pressing into desulfuration absorbing tower
Machine；It is all the way overflow from filtrate water filtered water tank liquid out point two-way, into lime stone slurry circulating box, another road is bottom
Portion's sewage, into wastewater treatment main system wastewater treatment, the bed mud of generation and the bed mud one from filtrate water clarifier out are carried out
Feeding pressure filter is played, the liquid Jing after the process of wastewater treatment main system then sends into outer disintegrating system in waste pipe, converts after flash distillation
For salt, industrial chemicals are eventually formed.
As preferred：The filtrate water clarifier middle part increases swash plate, and supernatant liquid enters swash plate from bottom, between swash plate
Flow up and complete clarification activities, while being furnished with the rake low rate mixing machine and actuating device for spoil disposal in bottom.
As preferred：The filtrate water filtered water tank is the anti-corrosion water tank for having agitator.
The invention has the beneficial effects as follows：
1st, reduce contaminated wastewater, reduce water consume
This waste water system simultaneously to Gypsum Fibrosum waste water, wet electric waste water and flue is hydrophobic processes, while useless after by process
Water delivers to respectively lime stone pulping system and desulfuration absorbing tower is reclaimed and used, and it is former that the outer draining in part then generates chemical industry Jing after processing
Material, the system is reduced or even has prevented discharge of wastewater pollution, and effectively reduces the water consume of system.
2nd, adaptability and good stability
This waste water system is based on the Gypsum Fibrosum rotational flow station system of wet desulfurization system, reuse water system and wastewater treatment main system
It is improved, it is adaptable to which all wet desulfurization systems, adaptability is good.Adaptability is good when whole system tackles many variable working condition, surely
It is fixed reliable.
3rd, technological process is simple, and investment and O＆M cost are low
The Gypsum Fibrosum rotational flow station system of the more original wet desulphurization of this waste water system, reuse water system and wastewater treatment main system,
Filtrate separator is reduced, filtrate water clarifier, filtrate water filtered water tank and connecting pipe is increased, system process is simply straight
See.System capital equipment, material are conventional products, it is easy to purchase, and cost of investment is low.Filtrate water clarifier power is not more than
3kW, energy consumption is relatively low, and system equipment is few, and pipeline is simple, while the side-product for producing can bring certain income, offsets part O＆M
Cost, O＆M cost is low.
4th, filtrate water clarifier relatively fruit is good
Filtrate water clarifier volume is big, and equipped with swash plate, can effectively lift clarifying effect.
Description of the drawings
Fig. 1 is present system structural representation；
Fig. 2 is single filtrate water clarifier schematic diagram；
Description of reference numerals：Water inlet 1, outlet 2, mud discharging mouth 3, actuating device 4, swash plate 5, the rotation of reuse water tank 6, Gypsum Fibrosum
Stream station 7, vacuum belt dehydration 8, wet electric waste water and flue is hydrophobic 9, filtrate water clarifier 10, filtrate water filtered water tank 11, limestone
Slurry circulation case 12, desulfuration absorbing tower 13, wastewater treatment main system 14, outer disintegrating system in waste pipe 15, pressure filter 16.
Specific embodiment
The present invention is described further with reference to embodiment.The explanation of following embodiments is only intended to help and understands this
Invention.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, also
Some improvement and modification can be carried out to the present invention, these are improved and modification also falls into the protection domain of the claims in the present invention
It is interior.
As shown in Figure 1 to Figure 2.This wastewater treatment equipment based on wet desulfurization system of the present invention, including Gypsum Fibrosum rotation
Stream station 7, reuse water tank 6, vacuum belt dewaterer 8, filtrate water clarifier 10, the circulation of filtrate water filtered water tank 11, lime stone slurry
Case 12, desulfurization wastewater processes main system 14, pressure filter 16, outer disintegrating system in waste pipe 15 and desulfuration absorbing tower 13；From Gypsum Fibrosum eddy flow
7 upper strata clear water out of standing flow to reuse water tank 6, and by reuse water tank 6 two-way pipeline is connect, and recycle-water is delivered to all the way desulfurization absorption
Deliver to lime stone slurry circulating box 12 in tower 13, another road；It is dehydrated into vacuum belt from the lower floor's sewage out of Gypsum Fibrosum rotational flow station 7
Machine 8, the filtrate after vacuum belt dewaterer 8 then enters filtrate water clarifier 10, while wet electric waste water and flue are hydrophobic
It is all the way overflow water from three tunnels of the liquid out of filtrate water clarifier 10 point into filtrate water clarifier 10, it is clear into filtrate water
Water tank 11, is all the way bottom sewage, is all the way bed mud, into pressure filter 16 into desulfuration absorbing tower 13；From filtrate water filtered water tank
11 liquid out point two-way, is all the way overflow, and into lime stone slurry circulating box 12, another road is bottom sewage, enters useless
Water process main system 14 carries out wastewater treatment, and the bed mud of generation sends into filter pressing together with from the bed mud out of filtrate water clarifier 10
Machine 16, the liquid Jing after the process of wastewater treatment main system then sends into outer disintegrating system in waste pipe 15, salt is converted into after flash distillation, most
After form industrial chemicals.The middle part of the filtrate water clarifier 10 increases swash plate 5, and supernatant liquid enters swash plate 5 from bottom, in swash plate
Flow up between 5 and complete clarification activities, while being furnished with the rake low rate mixing machine and actuating device 4 for spoil disposal in bottom.Filter
Liquid water filtered water tank 11 is the anti-corrosion water tank for having agitator.
The system is divided into two parts, i.e. reuse water section and sewage disposal part by demarcation line of Gypsum Fibrosum rotational flow station 7, is
Visible Fig. 1 of concrete composition of system.
(1) reuse water section
Reuse water tank 6 is flow to from the upper strata clear water out of Gypsum Fibrosum rotational flow station 7, two-way pipeline is connect by reuse water tank 6, by reuse
Water delivers to all the way desulfuration absorbing tower 13, and lime stone slurry circulating box 12 is delivered on another road.
(2) sewage disposal part
Reuse water tank 6 is flow to from the upper strata clear water out of Gypsum Fibrosum rotational flow station 7, two-way pipeline is connect by reuse water tank 6, by reuse
Water delivers to all the way desulfuration absorbing tower 13, and lime stone slurry circulating box 12 is delivered on another road；From Gypsum Fibrosum rotational flow station 7, lower floor out is dirty
Water enters vacuum belt dewaterer 8, and the filtrate after vacuum belt dewaterer 8 then enters filtrate water clarifier 10, while wet
Electric waste water and flue are hydrophobic also into filtrate water clarifier 10, from three tunnels of the liquid out of filtrate water clarifier 10 point, all the way for
Overflow water, is all the way bottom sewage into filtrate water filtered water tank 11, is all the way bed mud, into filter pressing into desulfuration absorbing tower 13
Machine 16；It is all the way overflow from the liquid out of filtrate water filtered water tank 11 point two-way, it is another into lime stone slurry circulating box 12
Road is bottom sewage, and into wastewater treatment main system 14 (i.e. the original wastewater treatment main system of wet desulfurization system) waste water is carried out
Process, the bed mud of generation sends into pressure filter 16, Jing wastewater treatment main systems together with from the bed mud out of filtrate water clarifier 10
Liquid after process then sends into outer disintegrating system in waste pipe 15, (waste water is steamed using boiler of power plant auxiliary steam through flash distillation
Send out) after be converted into salt, eventually form industrial chemicals.
(3) filtrate water clarifier 10
The prelimer volume about 20% to 50% that the filtrate water clarifier 10 is relatively generally used, and the middle part in case
Increase swash plate 5, treat that supernatant liquid enters the area of swash plate 5 from bottom, clarification activities are completed during flowing up between plate, can enter
One step lifts clarifying effect, while being furnished with rake low rate mixing machine and actuating device 4 in bottom, for spoil disposal, concrete structure can
See Fig. 2.
(4) wastewater treatment main system 14
It is Ca (OH) that raw wastewater processes the treatment additive of main system 142, NaOH being changed in the present system, can effectively subtract
Solid content in few outer draining.
(5) filtrate water filtered water tank 11
Filtrate water filtered water tank 11 be one with agitator anti-corrosion water tank, due to water quality it is more clear, during the water tank normal work
Use as transfer water tank, when there is accident conditions, i.e., when the water with a large amount of impurity enters the water tank, agitator can be started
Prevent bed mud from depositing.The filtrate water filtered water tank 11 plays a part of intermediate transit and storage, allow clear liquid in waste water according to
Operating mode applies to limestone pulping, the connection of two aspects of waste water advanced improvement, filtrate water clarifier 10 and filtrate water filtered water tank 11
Operation is closed, system operation is effectively ensured.
Claims (2)
1. a kind of wastewater treatment equipment based on wet desulfurization system, it is characterised in that：Including Gypsum Fibrosum rotational flow station (7), recycle-water
Case (6), vacuum belt dewaterer (8), filtrate water clarifier (10), filtrate water filtered water tank (11), lime stone slurry circulating box
(12), desulfurization wastewater processes main system (14), pressure filter (16), outer disintegrating system in waste pipe (15) and desulfuration absorbing tower (13)；From
Gypsum Fibrosum rotational flow station (7) upper strata clear water out flow to reuse water tank (6), and by reuse water tank (6) two-way pipeline is connect, by recycle-water one
Desulfuration absorbing tower (13) is delivered on road, and lime stone slurry circulating box (12) is delivered on another road；From Gypsum Fibrosum rotational flow station (7) lower floor out
Sewage enters vacuum belt dewaterer (8), and the filtrate after vacuum belt dewaterer (8) then enters filtrate water clarifier
(10), while wet electric waste water and flue are hydrophobic also into filtrate water clarifier (10), from filtrate water clarifier (10) liquid out
The tunnels of Ti Fen tri-, are all the way overflow water, are all the way bottom sewage into filtrate water filtered water tank (11), into desulfuration absorbing tower (13),
It is all the way bed mud, into pressure filter (16)；It is all the way overflow from filtrate water filtered water tank (11) liquid out point two-way, enters
Lime stone slurry circulating box (12), another road is bottom sewage, and into wastewater treatment main system (14) wastewater treatment is carried out, and is produced
Bed mud send into pressure filter (16) together with from filtrate water clarifier (10) bed mud out, Jing after the process of wastewater treatment main system
Liquid then send into outer disintegrating system in waste pipe (15), salt is converted into after flash distillation, eventually form industrial chemicals；The filtrate water
Defecator (10) middle part increases swash plate (5), and supernatant liquid enters swash plate (5), flows up between swash plate (5) and complete clear from bottom
Clear operation, while being furnished with the rake low rate mixing machine and actuating device (4) for spoil disposal in bottom.
2. the wastewater treatment equipment based on wet desulfurization system according to claim 1, it is characterised in that：The filtrate water
Filtered water tank (11) is the anti-corrosion water tank for having agitator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510391885.7A CN104984589B (en) | 2015-07-02 | 2015-07-02 | Wastewater treatment device based on wet desulphurization system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510391885.7A CN104984589B (en) | 2015-07-02 | 2015-07-02 | Wastewater treatment device based on wet desulphurization system |
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| Publication Number | Publication Date |
|---|---|
| CN104984589A CN104984589A (en) | 2015-10-21 |
| CN104984589B true CN104984589B (en) | 2017-04-19 |
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|---|---|---|---|
| CN201510391885.7A Active CN104984589B (en) | 2015-07-02 | 2015-07-02 | Wastewater treatment device based on wet desulphurization system |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204798990U (en) * | 2015-07-02 | 2015-11-25 | 浙江天地环保工程有限公司 | Effluent treatment plant based on wet flue gas desulfurization system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2973794B1 (en) * | 2011-04-11 | 2014-04-11 | Veolia Water Solutions & Tech | CLARIFICATION-TREATED WATER TREATMENT PROCESS COMPRISING AN ADSORPTION OF A CLARIFIED WATER PORTION AND CLARIFICATION OF ADSORBED CLARIFIED WATER MIXTURE AND WATER TO BE PROCESSED |
| CN103910445A (en) * | 2012-12-31 | 2014-07-09 | 武汉光谷环保科技股份有限公司 | Desulfurization wastewater treatment device adopting efficient clarifier |
| CN204058115U (en) * | 2014-06-30 | 2014-12-31 | 武汉龙净环保工程有限公司 | Desulfurization wastewater treatment system |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204798990U (en) * | 2015-07-02 | 2015-11-25 | 浙江天地环保工程有限公司 | Effluent treatment plant based on wet flue gas desulfurization system |
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Address after: Hangzhou City, Zhejiang province 310012 Huaxing Road No. 99 (Hangzhou Neusoft business building) Patentee after: Zhejiang Tiandi Environmental Protection Technology Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310012 Huaxing Road No. 99 (Hangzhou Neusoft business building) Patentee before: ZHEJIANG TIANDI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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Address after: No.99, Huaxing Road, Hangzhou City, Zhejiang Province (Hangzhou Neusoft venture building) Patentee after: Zhejiang Zheneng Technology Environmental Protection Group Co.,Ltd. Country or region after: China Address before: No.99, Huaxing Road, Hangzhou City, Zhejiang Province (Hangzhou Neusoft venture building) Patentee before: Zhejiang Tiandi Environmental Protection Technology Co.,Ltd. Country or region before: China |