CN205974125U - Desulfurization waste water zero release processing system - Google Patents

Desulfurization waste water zero release processing system Download PDF

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Publication number
CN205974125U
CN205974125U CN201620467366.4U CN201620467366U CN205974125U CN 205974125 U CN205974125 U CN 205974125U CN 201620467366 U CN201620467366 U CN 201620467366U CN 205974125 U CN205974125 U CN 205974125U
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China
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coal
desulfurization wastewater
thermal power
waste water
water
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Expired - Fee Related
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CN201620467366.4U
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Chinese (zh)
Inventor
闫爱军
钱伟
张建斌
郭新茹
李周平
杜越
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China Datang Corp Science and Technology Research Institute Co Ltd Northwest Branch
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China Datang Corp Science and Technology Research Institute Co Ltd Northwest Branch
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Abstract

The utility model discloses a desulfurization waste water zero release processing system for coal -fired thermal power field, its characterized in that: including desulfurization waste water baffle -box (1), desulfurization waste water baffle -box (1) is used for collecting the desulfurization waste water that coal -fired thermal power produced, and its exit end has connected gradually desulfurization waste water pump (2), has softened coagulation and clarification and has filtered integration treatment device (3), middle water tank (4), middle water pump (5), degree of depth softening installation (6), membrane concentration device (7), concentrating spent liquor pond (8), concentrated waste liquid pump (9), water distribution device (10), water distribution device (10) arrange in coal -fired thermal power's dust remover (11) and/or sediment storehouse (12) top of coal -fired thermal power. The utility model discloses waste control by waste's process systems is adopted in capital construction and operation cheap cost, with desulfurization waste water soften with the membrane concentration after for ash removal system and deslagging system absorb, realize the zero release of desulfurization waste water.

Description

A kind of desulfurization wastewater zero-discharge treatment system
Technical field
This utility model is related to Industrial Wastewater Treatment and resource circulation utilization technology, more particularly, to a kind of desulfurization wastewater zero-emission Put processing system, for coal-fired field of thermal power.
Background technology
China's coal-electricity base resource concentrations, mainly concentrate Siklingelei, Erdos, Jin Bei, Jinzhong City, Jin Dong, Shan North, Hami, accurate eastern, peaceful north-east area, and be in contrary distribution with water resource.Especially northern area water resource is more poor. Shanxi, Gansu, the water resources quantity in Ningxia 3 province (autonomous region) only account for the 7.5% of northern water resources quantity, and natural resources of groundwater amount is only Account for the 8.9% of northern natural resources of groundwater amount.This 3 provinces (autonomous region) and Shaanxi about, the Inner Mongol and Xinjiang are autonomous Area, annual rainfall, how in below 500mm, also has some areas less than 250mm, the sunshine-duration is long in addition, and evaporation capacity is big, water resource Very poor.Therefore, in northern area Development of Power Plant, being generated electricity using air cooling has significant conservation benefits.
In order to prevent natively very fragile ecological environment from deteriorating further it is necessary to waste water should be realized in air cooling power plant Zero-emission.According to the Northwest 22 coal-burning power plant's engineering sounding example, the weight of current air cooling power-plant waste zero-emission Point is the zero-emission of desulfurization wastewater.Desulfurization wastewater is processed using pretreatment-embrane method or electrodialysis concentration-evaporative crystallization technique, Technically feasible, but economy is poor, and capital construction and operating cost are higher.
Utility model content
Technical problem to be solved in the utility model is, the capital construction existing for existing method for treating desulfurized wastewater and The higher problem of operating cost, provides a kind of desulfurization wastewater zero-discharge treatment system, its capital construction and running cost low cost, comprehensive effect Benefit is high.
In order to reach solution above-mentioned technical problem, this utility model employs the following technical solutions and is achieved.
A kind of desulfurization wastewater zero-discharge treatment system, for coal-fired field of thermal power it is characterised in that:Including desulfurization Waste water baffle-box, described desulfurization wastewater baffle-box is used for collecting the desulfurization wastewater that coal-fired thermal power generation produces, and its port of export is successively It is connected with desulfurization wastewater pump, soften coagulation clarification filtering integral processing meanss, intermediate water tank, middle water pump, depth softening dress Put, film condensing device, concentrating spent liquor pond, thickened waste liquid pump, water-distributing device;Described water-distributing device is arranged in coal-fired firepower and sends out The slag silo roof portion of the interior and/or coal-fired thermal power generation of the cleaner unit of electricity.
Preferably, described softening coagulation clarification filtering integral processing meanss be with Calx-soda soften medicine charging function, The integrated treatment unit of coagulant medicine charging function, coagulation clarification function and ceramic filter function.
Preferably, described depth softening plant is Weak Acid Ion exchanger, strong acid ion exchanger or nanofiltration device.
When this utility model uses, desulfurization wastewater softens through softening coagulation clarification filtering integral processing meanss and depth After device carries out sofening treatment, thoroughly eliminate the heavy metal in water and fouling tendency ion, after water outlet concentrates through film condensing device, The water yield substantially reduces, and only designs the 1/3-1/5 of the water yield.Desulfurization wastewater after concentration is arranged in cleaner unit and/or slag storehouse The water-distributing device at top sprays, and is respectively used to ash disposal system and slag removing system, and a part is entered ash disposal system by smoke evaporative, salinity System, another part is mixed wet consumption by slag removing system evaporation.
The beneficial effects of the utility model are:
(1) adopt the technique of the treatment of wastes with processes of wastes against one another it is achieved that the zero-emission of desulfurization wastewater.
(2) desulfurization wastewater after softening avoids scaling in subsequent technique.
(3) the traditional desulfurization wastewater Zero-discharge treating process of ratio, capital construction and operating cost reduce 60-80%, economic benefit Significantly.
Brief description
Fig. 1 is structural representation of the present utility model;
Wherein, 1- desulfurization wastewater baffle-box, 2- desulfurization wastewater pump, 3- softens coagulation clarification filtering integral processing meanss, 4- intermediate water tank, 5- middle water pump, 6- depth softening plant, 7- film condensing device, 8- waste liquid concentrates pond, 9- concentrating spent liquor Pump, 10- water-distributing device, 12- cleaner unit, 13- slag storehouse.
Specific embodiment
As shown in figure 1, being a kind of preferred embodiment of desulfurization wastewater zero discharge treatment device of the present utility model, it is used for Coal-fired field of thermal power, specifically includes desulfurization wastewater baffle-box (1), and described desulfurization wastewater baffle-box (1) is used for collecting fire coal The desulfurization wastewater that thermal power generation produces, its port of export is connected with desulfurization wastewater pump (2) in turn, softens coagulation clarification filtering integral Processing meanss (3), intermediate water tank (4), middle water pump (5), depth softening plant (6), film condensing device (7), concentrating spent liquor water Pond (8), thickened waste liquid pump (9), water-distributing device (10).Wherein water-distributing device (10) is arranged in the cleaner unit of coal-fired thermal power generation (11) slag storehouse (12) top with coal-fired thermal power generation in.
Wherein, from the desulfurization wastewater of the gypsum dehydration separator outlet exclusion of the desulphurization system of coal-fired thermal power generation, enter Desulfurization wastewater baffle-box (1), after desulfurization wastewater pump (2) pressurization, enters and softens coagulation clarification filtering integral processing meanss (3), after one-level sofening treatment, most heavy metal ion and hardness ions are removed.Soften coagulation clarification and filter one Body processing meanss (3) water outlet enters intermediate water tank (4), after middle water pump (5) pressurization, enters depth softening plant (6) and enters Row secondary softening is processed, and removes remaining heavy metal ion and residual harness.Wherein, depth softening plant (6) adopts ion to hand over Change softening bed.
Ion exchange softening bed water outlet enters film condensing device (7) and is concentrated, and the waste water after concentration enters concentrating spent liquor Pond (8), is concentrated waste drains pump (9) circulation and squeezes into water-distributing device (10).A small amount of desulfurization wastewater after concentration is through water-distributing device (10) it is sprayed in cleaner unit (11) and slag storehouse (12) top, a part is entered ash disposal system, another portion by smoke evaporative, salinity Divide and wet consumption is mixed by slag removing system evaporation.
This utility model is described further below taking the treatment for reuse of certain power plant desulfurization waste water as a example.
Certain power plant desulfurization waste water quality is as shown in table 1.
Desulfurization wastewater, about 14t/h, after softened coagulation clarification filtering integral processing meanss (3) one-level sofening treatment, greatly Part hardness is removed, and residual harness is about 40mg/L, then carries out depth sofening treatment, hardness through depth softening plant (6) It is about 0-1mg/L.Produce water and enter film condensing device (7), be further concentrated, the response rate controls about 80%, and the water yield is about 2- 3t/h.
This utility model is softened using depth and the desulfurization wastewater of membrance concentration is concentrated, and concentrates waste water and is used for ash disposal or removes Slag system.Using the handling process of the treatment of wastes with processes of wastes against one another, capital construction and operating cost are cheap, and economical realizes desulfurization wastewater zero-emission.

Claims (3)

1. a kind of desulfurization wastewater zero-discharge treatment system, for coal-fired field of thermal power it is characterised in that:Including desulfurization wastewater Baffle-box (1), described desulfurization wastewater baffle-box (1) is used for collecting the desulfurization wastewater that coal-fired thermal power generation produces, its port of export according to Secondary be connected with desulfurization wastewater pump (2), soften coagulation clarification filtering integral processing meanss (3), intermediate water tank (4), middle water pump (5), depth softening plant (6), film condensing device (7), concentrating spent liquor pond (8), thickened waste liquid pump (9), water-distributing device (10);
Described water-distributing device (10) is arranged in the slag storehouse of the interior and/or coal-fired thermal power generation of cleaner unit (11) of coal-fired thermal power generation (12) top.
2. desulfurization wastewater zero-discharge treatment system according to claim 1 it is characterised in that:Described softening coagulation clarification mistake Filter integrated treatment unit (3) be with Calx-soda soften medicine charging function, coagulant medicine charging function, coagulation clarification function with And the integrated treatment unit of ceramic filter function.
3. desulfurization wastewater zero-discharge treatment system according to claim 1 it is characterised in that:Described depth softening plant For Weak Acid Ion exchanger, strong acid ion exchanger or nanofiltration device.
CN201620467366.4U 2016-05-20 2016-05-20 Desulfurization waste water zero release processing system Expired - Fee Related CN205974125U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
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US11502322B1 (en) 2022-05-09 2022-11-15 Rahul S Nana Reverse electrodialysis cell with heat pump
US11502323B1 (en) 2022-05-09 2022-11-15 Rahul S Nana Reverse electrodialysis cell and methods of use thereof
US11855324B1 (en) 2022-11-15 2023-12-26 Rahul S. Nana Reverse electrodialysis or pressure-retarded osmosis cell with heat pump
US12040517B2 (en) 2022-11-15 2024-07-16 Rahul S. Nana Reverse electrodialysis or pressure-retarded osmosis cell and methods of use thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11502322B1 (en) 2022-05-09 2022-11-15 Rahul S Nana Reverse electrodialysis cell with heat pump
US11502323B1 (en) 2022-05-09 2022-11-15 Rahul S Nana Reverse electrodialysis cell and methods of use thereof
US11563229B1 (en) 2022-05-09 2023-01-24 Rahul S Nana Reverse electrodialysis cell with heat pump
US11611099B1 (en) 2022-05-09 2023-03-21 Rahul S Nana Reverse electrodialysis cell and methods of use thereof
US11699803B1 (en) 2022-05-09 2023-07-11 Rahul S Nana Reverse electrodialysis cell with heat pump
US12107308B2 (en) 2022-05-09 2024-10-01 Rahul S Nana Reverse electrodialysis cell and methods of use thereof
US11855324B1 (en) 2022-11-15 2023-12-26 Rahul S. Nana Reverse electrodialysis or pressure-retarded osmosis cell with heat pump
US12040517B2 (en) 2022-11-15 2024-07-16 Rahul S. Nana Reverse electrodialysis or pressure-retarded osmosis cell and methods of use thereof

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20170222

Termination date: 20180520