CN204490542U - A kind of system of full factory waste water zero discharge - Google Patents
A kind of system of full factory waste water zero discharge Download PDFInfo
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- CN204490542U CN204490542U CN201520093864.2U CN201520093864U CN204490542U CN 204490542 U CN204490542 U CN 204490542U CN 201520093864 U CN201520093864 U CN 201520093864U CN 204490542 U CN204490542 U CN 204490542U
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Abstract
The utility model discloses a kind of system of full factory waste water zero discharge, comprise the waste water collection device (1) for collecting full factory waste water, Wet FGD (2) and desulfurization wastewater Zero emission device (3), the liquid discharge pipe of waste water collection device (1) connects Wet FGD (2) by pipeline, and described Wet FGD (2) connects desulfurization wastewater Zero emission device (3) for the liquid discharge pipe of discharging desulfurization wastewater by pipeline.The beneficial effects of the utility model are: utilize the high-temperature flue gas in Wet FGD to carry out evaporation decrement to the waste water of original big yield, to realize the Btu utilization of useless high-temperature flue gas and to reduce the wastewater flow rate of Zero emission device process, thus make the occupation of land of desulfurization wastewater Zero emission device, investment, working cost all lower.
Description
Technical field
The utility model relates to technical field of waste water processing, particularly, relates to a kind of system being applicable to the full factory waste water zero discharge processing the enterprise such as fuel-burning power plant, Industrial Stoves.
Background technology
Fuel-burning power plant, Industrial Stoves etc. use the enterprise of boiler to have Wastewater Form Circulating Cooling Water, trade effluent, externally discharge containing various wastewater such as coal waste water, oily(waste)water, sanitary wastewaters, the waste water quality of discharge is various, the water yield differs, also be mixed with the large discharge draining having discontinuity, particularly the process of some high slat-containing wastewaters is more difficult, and the waste water of big yield realizes zero release simultaneously needs larger equipment occupation of land, higher facility investment and working cost.
Fuel-burning power plant, Industrial Stoves etc. use the enterprise of boiler at home under Eleventh Five-Year Plan environmental requirement, have all built flue gas desulfurization (FGD) unit, wherein Wet Flue Gas Desulfurization Technology at home accounting more than 90%.Wet flue gas desulfurizer because the cigarette temperature entering desulfurizer is high, needs constantly to supplement process water to maintain the water yield and the heat balance of desulfurizer in operational process.
Wastewater treatment difficulty in factory, wherein effluent part is the same with desulfurization wastewater is high slat-containing wastewater, cannot externally discharge after simple process, and domestic current Duo Jia mechanism and enterprise are all in the test work carrying out desulfurization wastewater Zero emission device and system.
That understands water pollution along with people gos deep into, more and more stricter to the control criterion of water pollution both at home and abroad.Come out from the viewpoint of Sustainable development, along with water resources day by day day by day deficient, environmental requirement progressively strict, the recovery of waste water (comprising desulfurization wastewater class high salt waste) and zero release are the inexorable trends of power plant water development.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of system of full factory waste water zero discharge of saving energy consumption, reducing costs.
The technical scheme in the invention for solving the above technical problem is:
A kind of system of full factory waste water zero discharge, comprise the waste water collection device for collecting full factory waste water, Wet FGD and desulfurization wastewater Zero emission device, the liquid discharge pipe of waste water collection device connects Wet FGD by pipeline, and described Wet FGD connects desulfurization wastewater Zero emission device for the liquid discharge pipe of discharging desulfurization wastewater by pipeline.
Thus waste water collection device non-recurrent draining can be become regular draining with the water yield controlling to enter Wet FGD be stablize, the continuous print water yield.Preferably, waste water transfer line is in the system laid with the waste water pump for transport wastewater between different device by actual demand, waste water enters waste water collection device according to the flow velocity set, flow.
Preferably, waste water cascade utilization decrement pretreatment unit is also provided with between described waste water collection device and Wet FGD, the liquid discharge pipe of waste water collection device connects waste water cascade utilization decrement pretreatment unit by pipeline, and the liquid discharge pipe of waste water cascade utilization decrement pretreatment unit connects Wet FGD by pipeline.Preferably, waste water enters waste water cascade utilization decrement pretreatment unit according to the flow velocity set, flow, pretreated waste water is by being pumped into Wet FGD, and the waste water after evaporation concentration is discharged by the bottom of Wet FGD and entered desulfurization wastewater Zero emission device.
Preferably, be provided with and described full factory waste water carried out by different water quality, water yield situation multiple waste water collection device of collecting and carries out pretreated multiple waste water cascade utilization decrement pretreatment unit by different water quality, water yield situation.
Optionally, the liquid discharge pipe of described waste water collection device or waste water cascade utilization decrement pretreatment unit connects the liquid-inlet pipe of the spray equipment of Wet FGD by pipeline, waste water imports Wet FGD from the liquid-inlet pipe of the spray equipment of Wet FGD; Or in the tower body of Wet FGD, set up a spray equipment A again, the liquid discharge pipe of waste water collection device or waste water cascade utilization decrement pretreatment unit connects the liquid-inlet pipe of spray equipment A by pipeline, waste water imports Wet FGD from the liquid-inlet pipe of spray equipment A, preferred this spray equipment A is arranged at the top of original spray equipment, thus can improve the heat exchanger effectiveness of high-temperature flue gas; Or a waste water liquid-inlet pipe is set on tower body, the liquid discharge pipe of waste water collection device or waste water cascade utilization decrement pretreatment unit connects waste water liquid-inlet pipe by pipeline, and waste water imports Wet FGD from this waste water liquid-inlet pipe; Or the liquid discharge pipe of waste water collection device or waste water cascade utilization decrement pretreatment unit connects the pulping device of Wet FGD by pipeline, waste water enters Wet FGD with slurries.
Described waste water cascade utilization decrement pretreatment unit is the settling tank adopting the RO reverse osmosis water disposal facility of RO reverse osmosis technology, the high-frequency vibration film adopting vibration membrane technology, bioreactor sewage water treatment unit or adopt dosing flocculation, clarification technique.Can be realized the recycling of the part water yield by waste water cascade utilization decrement pretreatment unit, the remaining dense water that cannot process enters Wet FGD again.As adopted RO reverse osmosis water disposal facility to carry out to the waste water of low saline salinity the recycling that pre-treatment realizes the part water yield, the remaining dense water that cannot process enters Wet FGD again.
Described desulfurization wastewater Zero emission device is adopt the multiple-effect evaporator of multiple-effect evaporation technology or adopt the MVR vaporizer of MVR technology (mechanical vapor recompression technology).
Described Wet FGD comprises tower body, the top of tower body is provided with wet flue gas relief outlet, the bottom of tower body is provided with the import of high temperature dry flue gas, top in tower body is provided with spray equipment, the liquid-inlet pipe of spray equipment connects water supply installation, and the bottom of tower body is provided with the desulfurization wastewater liquid discharge pipe of discharging desulfurization wastewater.
Described Wet FGD is also provided with liquid circulating apparatus, liquid circulating apparatus comprises the circulation liquid-inlet pipe of circulation drain pipe, recycle pump and the connection spray equipment liquid-inlet pipe being arranged at tower body bottom, circulation drain pipe connects the fluid inlet of recycle pump, the liquid outlet of circulation liquid-inlet pipe communication loop pump.
To sum up, the beneficial effects of the utility model are:
The utility model is specially adapted to process fuel-burning power plant, the waste water that full factory of the enterprises such as Industrial Stoves produces, the high-temperature waste flue gas utilizing boiler to produce carries out evaporation concentration decrement treatment to waste water, the high-temperature flue gas in Wet FGD is utilized to carry out evaporation decrement to the waste water of original big yield, to realize the Btu utilization of useless high-temperature flue gas and to reduce the wastewater flow rate of Zero emission device process, realize the object of waste recycling, because a large amount of waste water moisture all evaporates in desulfurizer, the water yield entering desulfurization wastewater Zero emission device is less, thus make the occupation of land of desulfurization wastewater Zero emission device, investment, working cost is all lower, and full factory waste water zero discharge can be realized, simultaneously owing to other waste water be instead of the technique make up water of desulfurizer, the make up water being equivalent to save desulfurizer can save the process water that desulfurization treatment process consumes, reach the effect of water saving, thus energy consumption is low, cost is low, take up an area little advantage to make the utility model have.
The utility model by Wastewater Form Circulating Cooling Water, trade effluent, all undertaken collecting or pre-treatment by different water quality, water yield situation containing coal waste water, oily(waste)water, all waste water of sanitary wastewater Deng Quan factory, to realize preliminary wastewater minimisation and the stable subsequent disposal waste water water yield.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is water treatment process schematic diagram of the present utility model;
Fig. 3 is a kind of structural representation that waste water enters wet desulphurization device;
Fig. 4 is the another kind of structural representation that waste water enters wet desulphurization device;
Fig. 5 is the third structural representation that waste water enters wet desulphurization device;
Fig. 6 is the structural representation that the utility model arranges waste water cascade utilization decrement pretreatment unit;
Fig. 7 is the water treatment process schematic diagram that the utility model arranges waste water cascade utilization decrement pretreatment unit.
Mark and corresponding component title in accompanying drawing:
1-waste water collection device, 2-Wet FGD, 3-desulfurization wastewater Zero emission device, 4-waste water cascade utilization decrement pretreatment unit, 5-tower body, 6-wet flue gas relief outlet, the import of 7-high temperature dry flue gas, 8-spray equipment, 9-desulfurization wastewater liquid discharge pipe, 10-circulation drain pipe, 11-recycle pump, 12-circulation liquid-inlet pipe, 13-spray equipment A, 14-waste water liquid-inlet pipe.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the utility model do, but embodiment of the present utility model is not limited thereto.
Embodiment 1:
A kind of system of full factory waste water zero discharge, as shown in Figure 1 and Figure 2, comprise the waste water collection device 1 for collecting full factory waste water, Wet FGD 2 and desulfurization wastewater Zero emission device 3, the liquid discharge pipe of waste water collection device 1 connects Wet FGD 2 by pipeline, and described Wet FGD 2 connects desulfurization wastewater Zero emission device 3 for the liquid discharge pipe of discharging desulfurization wastewater by pipeline.Add up after testing, the moisture evaporated in waste water accounts for 60 ~ 80% of raw wastewater total amount.
Thus waste water collection device 1 non-recurrent draining can be become regular draining with the water yield controlling to enter Wet FGD 2 be stablize, the continuous print water yield.Preferably, waste water transfer line is in the system laid with the waste water pump for transport wastewater between different device by actual demand, as shown in Figure 2..
Optionally, as shown in Figure 3, the liquid discharge pipe of waste water collection device 1 connects the liquid-inlet pipe of the spray equipment 8 of Wet FGD 2 by pipeline, waste water imports Wet FGD 2 from the liquid-inlet pipe of the spray equipment 8 of Wet FGD 2; Or as shown in Figure 4, a spray equipment A13 is set up again in the tower body 5 of Wet FGD 2, the liquid discharge pipe of waste water collection device 1 connects the liquid-inlet pipe of spray equipment A13 by pipeline, waste water imports Wet FGD 2 from the liquid-inlet pipe of spray equipment A13, preferred this spray equipment A13 is arranged at the top of original spray equipment 8, thus can improve the heat exchanger effectiveness of high-temperature flue gas; Or as shown in Figure 5, tower body 5 arranging a waste water liquid-inlet pipe 14, the liquid discharge pipe of waste water collection device 1 connects waste water liquid-inlet pipe 14 by pipeline, and waste water imports Wet FGD 2 from this waste water liquid-inlet pipe 14; The liquid discharge pipe of waste water collection device 1 can also be connected the pulping device of Wet FGD 2 by pipeline, waste water enters Wet FGD 2 with slurries.
Optionally, as shown in Figure 1, multiple waste water collection device 1 can be set, thus described full factory waste water is collected by different water quality, water yield situation.
Preferably, described desulfurization wastewater Zero emission device 3 is adopt the multiple-effect evaporator of multiple-effect evaporation technology or adopt the MVR vaporizer of MVR technology (mechanical vapor recompression technology).
As shown in Figure 1 and Figure 2, adopt the method for the system of described a kind of full factory waste water zero discharge, comprise the following steps:
S1, full factory waste water enter waste water collection device 1;
S2, waste water enter Wet FGD 2 from waste water collection device 1;
S3, high temperature dry flue gas enter in Wet FGD 2;
S4, high temperature dry flue gas and waste water comes into heat transferring contact in Wet FGD 2, the portion of water evaporation in waste water adds wet flue gas and discharges from Wet FGD 2 top; Add up after testing, the moisture evaporated in waste water accounts for 60 ~ 80% of raw wastewater total amount;
Concentrated after S5, waste water contact with heat smoke, discharge from Wet FGD 2 with desulfurization wastewater;
The desulfurization wastewater of S6, discharge enters desulfurization wastewater Zero emission device 3 and realizes zero release.
The high-temperature flue gas in Wet FGD 2 is utilized to carry out evaporation decrement to the waste water of original big yield, to realize the Btu utilization of useless high-temperature flue gas and to reduce the wastewater flow rate of Zero emission device process.Because a large amount of waste water moisture all evaporates in desulfurizer, the water yield entering desulfurization wastewater Zero emission device 3 is less, thus make the occupation of land of desulfurization wastewater Zero emission device 3, investment, working cost all lower, through Experimental comparison, the occupation of land of desulfurization wastewater Zero emission device 3, investment, working cost can reduce by 60 ~ 70%.
Described full factory waste water comprise Wastewater Form Circulating Cooling Water, trade effluent, containing coal waste water, oily(waste)water, all waste water of sanitary wastewater Deng Quan factory.
Optionally, as shown in Figure 1, described full factory waste water enters waste water collection device 1 and refers to and collected by different water quality, water yield situation by described full factory waste water.Then enter in Wet FGD 2 by the whole waste water after collecting by different water quality, water yield situation, waste water carries out moisture evaporation concentration to play the object of wastewater minimisation in Wet FGD.
Described Wet FGD 2 is the conventional multipurpose plant in this area, as shown in Figure 3, it comprises tower body 5, the top of tower body 5 is provided with wet flue gas relief outlet 6, the bottom of tower body 5 is provided with high temperature dry flue gas import 7, top in tower body 5 is provided with spray equipment 8, and the liquid-inlet pipe of spray equipment 8 connects water supply installation, and the bottom of tower body 5 is provided with the desulfurization wastewater liquid discharge pipe 9 of discharging desulfurization wastewater.
When implementing the method for full factory waste water zero discharge described in the utility model, as shown in Figure 3, waste water can be imported Wet FGD 2 from the liquid-inlet pipe of the spray equipment 8 of Wet FGD 2; Or as shown in Figure 4, a spray equipment A13 is set up again in the tower body 5 of Wet FGD 2, then waste water imports Wet FGD 2 from the liquid-inlet pipe of spray equipment A13, preferred this spray equipment A13 is arranged at the top of original spray equipment 8, thus can improve the heat exchanger effectiveness of high-temperature flue gas; Or as shown in Figure 5, tower body 5 arranges a waste water liquid-inlet pipe 14, then waste water is imported Wet FGD 2 from this waste water liquid-inlet pipe 14.
Optionally, described Wet FGD 2 is also provided with liquid circulating apparatus, liquid circulating apparatus comprises the circulation drain pipe 10, recycle pump 11 and the circulation liquid-inlet pipe 12 being connected spray equipment 8 liquid-inlet pipe that are arranged at tower body 5 bottom, circulation drain pipe 10 connects the fluid inlet of recycle pump 11, the liquid outlet of circulation liquid-inlet pipe 12 communication loop pump 11.
Preferably, the temperature entering the high temperature dry flue gas in Wet FGD 2 is 80 ~ 160 DEG C, and in described step S4, the temperature of the flue gas that Wet FGD 2 top is discharged is at 50 ~ 60 DEG C.
Preferably, described step S6 adopts multiple-effect evaporation technology or MVR technology (mechanical vapor recompression technology) to realize desulfurization to divide water zero discharge.
Embodiment 2:
A kind of system of full factory waste water zero discharge, its structure is with the full factory waste water zero discharge system described in embodiment 1, the difference of full factory waste water zero discharge system described in itself and embodiment 1 is, as shown in Figure 6, Figure 7, waste water cascade utilization decrement pretreatment unit 4 is also provided with between described waste water collection device 1 and Wet FGD 2, the liquid discharge pipe of waste water collection device 1 connects waste water cascade utilization decrement pretreatment unit 4 by pipeline, and the liquid discharge pipe of waste water cascade utilization decrement pretreatment unit 4 connects Wet FGD 2 by pipeline.Preferably, waste water enters waste water cascade utilization decrement pretreatment unit 4 according to the flow velocity set, flow, pretreated waste water is by being pumped into Wet FGD 2, and the waste water after evaporation concentration is discharged by the bottom of Wet FGD 2 and entered desulfurization wastewater Zero emission device 3.
Described waste water cascade utilization decrement pretreatment unit 4 is the settling tank adopting the RO reverse osmosis water disposal facility of RO reverse osmosis technology, the high-frequency vibration film adopting vibration membrane technology, bioreactor sewage water treatment unit or adopt dosing flocculation, clarification technique.Can be realized the recycling of the part water yield by waste water cascade utilization decrement pretreatment unit 4, reach the object of the pre-decrement of waste water cascade utilization, the remaining dense water that cannot process enters Wet FGD 2 again.As adopted RO reverse osmosis water disposal facility to carry out to the waste water of low saline salinity the recycling that pre-treatment realizes the part water yield, the remaining dense water that cannot process enters Wet FGD 2 again.
Preferably, as shown in Figure 6, multiple waste water collection device 1 and multiple waste water cascade utilization decrement pretreatment unit 4 can be set, thus carry out pre-treatment by different water quality, water yield situation after being collected by different water quality, water yield situation by described full factory waste water, realize the pre-decrement of waste water cascade utilization, the clear water reuse that pre-treatment obtains, then enter in Wet FGD 2 by carrying out pretreated whole waste water by different water quality, water yield situation, waste water carries out moisture evaporation concentration to play the object of wastewater minimisation in Wet FGD.
Optionally, as shown in Figure 3, the liquid discharge pipe of described waste water cascade utilization decrement pretreatment unit 4 connects the liquid-inlet pipe of the spray equipment 8 of Wet FGD 2 by pipeline, waste water imports Wet FGD 2 from the liquid-inlet pipe of the spray equipment 8 of Wet FGD 2; Or as shown in Figure 4, a spray equipment A13 is set up again in the tower body 5 of Wet FGD 2, the liquid discharge pipe of waste water cascade utilization decrement pretreatment unit 4 connects the liquid-inlet pipe of spray equipment A13 by pipeline, waste water imports Wet FGD 2 from the liquid-inlet pipe of spray equipment A13, preferred this spray equipment A13 is arranged at the top of original spray equipment 8, thus can improve the heat exchanger effectiveness of high-temperature flue gas; Or as shown in Figure 5, tower body 5 arranging a waste water liquid-inlet pipe 14, the liquid discharge pipe of waste water cascade utilization decrement pretreatment unit 4 connects waste water liquid-inlet pipe 14 by pipeline, and waste water imports Wet FGD 2 from this waste water liquid-inlet pipe 14; The liquid discharge pipe of waste water cascade utilization decrement pretreatment unit 4 can also be connected the pulping device of Wet FGD 2 by pipeline, waste water enters Wet FGD 2 with slurries.
Adopt the method for the system of described a kind of full factory waste water zero discharge, as shown in Figure 6, Figure 7, its step is with the method for the full factory waste water zero discharge described in embodiment 1, be with the difference of the method for factory waste water zero discharge complete described in embodiment 1, in described step S2, before waste water enters Wet FGD 2 from waste water collection device 1, also comprise and the waste water in waste water collection device 1 is carried out pretreated step, then will import in Wet FGD 2 through pretreated waste water.Can be realized the recycling of the part water yield by Wastewater Pretreatment step, the remaining dense water that cannot process enters Wet FGD 2 again.As pre-treatment step can adopt RO reverse osmosis water disposal facility to carry out to the waste water of low saline salinity the recycling that pre-treatment realizes the part water yield, the remaining dense water that cannot process enters Wet FGD 2 again.Add up after testing, the water yield that pre-treatment step reclaims accounts for 20 ~ 40% of raw wastewater total amount.
Preferably, as shown in Figure 6, described pre-treatment of being carried out by the waste water in waste water collection device 1 refers to that the waste water by described full factory waste water is undertaken collecting by different water quality, water yield situation carries out pre-treatment by different water quality, water yield situation, then enter in Wet FGD 2 by carrying out pretreated whole waste water by different water quality, water yield situation, waste water carries out moisture evaporation concentration to play the object of wastewater minimisation in Wet FGD.
As mentioned above, the utility model can be realized preferably.
Claims (9)
1. the system of a full factory waste water zero discharge, it is characterized in that, comprise the waste water collection device (1) for collecting full factory waste water, Wet FGD (2) and desulfurization wastewater Zero emission device (3), the liquid discharge pipe of waste water collection device (1) connects Wet FGD (2) by pipeline, and described Wet FGD (2) connects desulfurization wastewater Zero emission device (3) for the liquid discharge pipe of discharging desulfurization wastewater by pipeline.
2. the system of a kind of full factory waste water zero discharge according to claim 1, it is characterized in that, waste water cascade utilization decrement pretreatment unit (4) is also provided with between described waste water collection device (1) and Wet FGD (2), the liquid discharge pipe of waste water collection device (1) connects waste water cascade utilization decrement pretreatment unit (4) by pipeline, and the liquid discharge pipe of waste water cascade utilization decrement pretreatment unit (4) connects Wet FGD (2) by pipeline.
3. the system of a kind of full factory waste water zero discharge according to claim 2, it is characterized in that, waste water cascade utilization decrement pretreatment unit (4) is the settling tank adopting the RO reverse osmosis water disposal facility of RO reverse osmosis technology, the high-frequency vibration film adopting vibration membrane technology, bioreactor sewage water treatment unit or adopt dosing flocculation, clarification technique.
4. according to the system of a kind of full factory waste water zero discharge in claim 1 ~ 3 described in any one, it is characterized in that, described desulfurization wastewater Zero emission device (3) is adopt the multiple-effect evaporator of multiple-effect evaporation technology or adopt the MVR vaporizer of MVR technology.
5. the system of a kind of full factory waste water zero discharge according to claim 1, it is characterized in that, the liquid discharge pipe of described waste water collection device (1) connects the liquid-inlet pipe of the spray equipment (8) of Wet FGD (2) by pipeline, waste water imports Wet FGD (2) from the liquid-inlet pipe of the spray equipment (8) of Wet FGD (2); Or a spray equipment A(13 is set up again in the tower body (5) of Wet FGD (2)), the liquid discharge pipe of waste water collection device (1) connects spray equipment A(13 by pipeline) liquid-inlet pipe, waste water is from spray equipment A(13) liquid-inlet pipe import Wet FGD (2); Or a waste water liquid-inlet pipe is set on tower body (5), the liquid discharge pipe of waste water collection device (1) connects waste water liquid-inlet pipe by pipeline, and waste water imports Wet FGD (2) from this waste water liquid-inlet pipe; Or the liquid discharge pipe of waste water collection device (1) connects the pulping device of Wet FGD (2) by pipeline, waste water enters Wet FGD (2) with slurries.
6. the system of a kind of full factory waste water zero discharge according to Claims 2 or 3, it is characterized in that, the liquid discharge pipe of described waste water cascade utilization decrement pretreatment unit (4) connects the liquid-inlet pipe of the spray equipment (8) of Wet FGD (2) by pipeline, waste water imports Wet FGD (2) from the liquid-inlet pipe of the spray equipment (8) of Wet FGD (2); Or a spray equipment A(13 is set up again in the tower body (5) of Wet FGD (2)), the liquid discharge pipe of waste water cascade utilization decrement pretreatment unit (4) connects spray equipment A(13 by pipeline) liquid-inlet pipe, waste water is from spray equipment A(13) liquid-inlet pipe import Wet FGD (2); Or a waste water liquid-inlet pipe (14) is set on tower body (5), the liquid discharge pipe of waste water cascade utilization decrement pretreatment unit (4) connects waste water liquid-inlet pipe (14) by pipeline, and waste water imports Wet FGD (2) from this waste water liquid-inlet pipe (14); Or the liquid discharge pipe of waste water cascade utilization decrement pretreatment unit (4) connects the pulping device of Wet FGD (2) by pipeline, waste water enters Wet FGD (2) with slurries.
7. the system of a kind of full factory waste water zero discharge according to Claims 2 or 3, it is characterized in that, be provided with and described full factory waste water carried out by different water quality, water yield situation multiple waste water collection devices (1) of collecting and carries out pretreated multiple waste water cascade utilization decrement pretreatment unit (4) by different water quality, water yield situation.
8. the system of a kind of full factory waste water zero discharge according to claim 1, it is characterized in that, described Wet FGD (2) comprises tower body (5), the top of tower body (5) is provided with wet flue gas relief outlet (6), the bottom of tower body (5) is provided with high temperature dry flue gas import (7), top in tower body (5) is provided with spray equipment (8), the liquid-inlet pipe of spray equipment (8) connects water supply installation, and the bottom of tower body (5) is provided with the desulfurization wastewater liquid discharge pipe (9) of discharging desulfurization wastewater.
9. the system of a kind of full factory waste water zero discharge according to claim 8, it is characterized in that, described Wet FGD (2) is also provided with liquid circulating apparatus, liquid circulating apparatus comprises the circulation drain pipe (10), recycle pump (11) and the circulation liquid-inlet pipe (12) being connected spray equipment (8) liquid-inlet pipe that are arranged at tower body (5) bottom, circulation drain pipe (10) connects the fluid inlet of recycle pump (11), the liquid outlet of circulation liquid-inlet pipe (12) communication loop pump (11).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104671315A (en) * | 2015-02-10 | 2015-06-03 | 成都锐思环保技术股份有限公司 | Method and system for realizing zero discharge of whole factory wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671315A (en) * | 2015-02-10 | 2015-06-03 | 成都锐思环保技术股份有限公司 | Method and system for realizing zero discharge of whole factory wastewater |
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Granted publication date: 20150722 Effective date of abandoning: 20180123 |