CN203700070U - Device for mixing and recycling steel waste water and municipal sewage - Google Patents

Device for mixing and recycling steel waste water and municipal sewage Download PDF

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Publication number
CN203700070U
CN203700070U CN201320810242.8U CN201320810242U CN203700070U CN 203700070 U CN203700070 U CN 203700070U CN 201320810242 U CN201320810242 U CN 201320810242U CN 203700070 U CN203700070 U CN 203700070U
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water
tank
pipeline
steel
connects
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王智
王国臣
王广文
梁兆军
刘国新
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BEIJING ZNXY ENERGY-SAVING ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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BEIJING ZNXY ENERGY-SAVING ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Abstract

The utility model relates to a device for mixing and recycling steel waste water and municipal sewage. The device for mixing and recycling the steel waste water and municipal sewage comprises a grid well, an oil-separating tank, a regulating tank, a high-density clarification tank, a V-shaped filtration tank, a disinfection water tank, an ultrafiltration device and a reverse osmosis device, wherein an input hole of the grid well is connected with a waste water pipeline of a steel mill, an output hole of the grid well is connected with an input hole of the oil-separating tank by virtue of a pipeline, an output hole of the oil-separating tank is connected with a steel mill waste water input hole of the regulating tank by virtue of a pipeline, a municipal sewage input hole connected with a municipal sewage pipeline is also formed in the regulating tank; mixed water of the steel mill waste water and municipal sewage is treated by virtue of the high-density clarification tank, the V-shaped filtration tank, the disinfection water tank, the ultrafiltration device and the reverse osmosis device and is discharged as clear water and concentrated water. The device for mixing and recycling the steel waste water and municipal sewage has the beneficial effects that the steel mill waste water and the municipal sewage are mixed firstly and then recycled, and the municipal sewage is utilized as water supplement for steel production, so that waste water is recycled, and new water resource is greatly saved.

Description

The device of a kind of steel wastewater and the reuse of municipal wastewater mixed regeneration
Technical field
The utility model belongs to waste water reclamation treatment unit, relates in particular to the device of a kind of steel wastewater and the reuse of municipal wastewater mixed regeneration.
Background technology
Iron and steel mainly contains by watering technology classification: 1. component cooling water; 2. process cooling water; 3. washing, purifying water; 4. Boiler Steam water.Root Ju water Classification of water Qualities: 1. high-temperature technology uses softening water or deionized water; 2. clean recirculated water (discord material directly contacts); 3. turbid circulating water (directly contacting with material).Iron and steel enterprise is used water resources quantity to exceed 24 billion cubic meters every year, exceedes every year and has the sewage of 12 billion cubic meters to enter river, river, lake, sea, or entered in soil.Along with the expansion of Iron and Steel Production scale, also growing to the demand of water.At present, domestic is mainly to take " pre-treatment+advanced treatment " to recycling of wastewater from steel, but advanced treatment often the part water yield carry out advanced treatment, the easy like this water that makes is in working cycle, salt concentration constantly raises, and desalting efficiency is low, and fouling, corrosion phenomenon easily occur water lines.Meanwhile, the water consumption of Iron And Steel Industry is by evaporating, and the cooling damage of wafing, leaks and water amount of blowdown composition, needs in time system to be carried out to moisturizing, could meet the demand of water consumption.Most of iron and steel enterprise is directly used underground water or the direct moisturizing of reservoir water, has wasted valuable water resources.
Summary of the invention
The purpose of this utility model is the technical scheme that proposes the device of a kind of steel wastewater and the reuse of municipal wastewater mixed regeneration, utilizes the moisturizing water source of municipal wastewater as iron and steel enterprise.
To achieve these goals, the technical solution of the utility model is: the device of a kind of steel wastewater and the reuse of municipal wastewater mixed regeneration, comprises grille well, oil trap, equalizing tank, high dense settling pond, V-type filter tank, disinfection pool, ultra-filtration equipment, reverse osmosis unit; The input aperture of described grille well connects waste water of steel plants pipeline, the delivery port of grille well connects the input aperture of described oil trap by pipeline, the delivery port of described oil trap connects the waste water of steel plants input aperture of described equalizing tank by pipeline, equalizing tank is also provided with the municipal wastewater input aperture being connected with municipal wastewater pipeline;
The delivery port of equalizing tank connects the input aperture of described high dense settling pond by pipeline, the delivery port of high dense settling pond connects the input aperture in described V-type filter tank by pipeline, and the delivery port in V-type filter tank connects described disinfection pool by pipeline;
The delivery port of disinfection pool connects the access port of ultra-filtration equipment by pipeline, ultra-filtration equipment send mouthful the access port that connects described reverse osmosis unit by pipeline, reverse osmosis unit is provided with clear water output channel and concentrated water discharge pipeline.
Further, described grille well be provided with coarse rack that one mesh width is 25mm with together with the mesh width fine fack that is 10mm, grille well is also provided with the Shaftless screw conveyor that residue that grid is held back is discharged.
Further, described oil trap is to utilize floating method to remove the oil trap that relative density in sewage is less than 1 oil slick, is provided with oil skimmer vessel in oil trap.
Further, the bottom of described equalizing tank is provided with the mixing submersible agitator that sewage is carried out to mix and blend.
Further, the delivery port of described equalizing tank connects the input aperture of described high dense settling pond by being provided with the pipeline of lift pump.
Further, described high dense settling pond comprises the front coagulation basin, reaction tank, preliminary sedimentation-concentration basin, inclined tube separate tank, the rear coagulation basin that set gradually along water (flow) direction.
Further, described ultra-filtration equipment comprises the ultrafiltration lift pump, more medium filter, self-cleaning filter, ultra filtration filter, the ultrafiltration product water tank that set gradually along treatment scheme.
Further, described reverse osmosis unit comprises the reverse osmosis booster pump, cartridge filter, reverse osmosis high-pressure pump, the reverse osmosis membrane group that set gradually along treatment scheme; Described reverse osmosis membrane group is provided with clear water delivery port and dense water output, and described clear water delivery port connects described clear water output channel, and described dense water output connects described concentrated water discharge pipeline.
In order to reduce the discharge of dirt and to effectively utilize regeneration effluent device, V-type filter tank, more medium filter and ultra filtration filter adopt the sewage producing through described device water after treatment and by backwash to send equalizing tank back to and circulate into purifying treatment in backwash process.
Described V-type filter tank, more medium filter and ultra filtration filter are respectively equipped with backwash water-in and backwash water outlet, and described disinfection pool and ultrafiltration are produced water tank and be respectively equipped with backwash water outlet, and described equalizing tank is provided with backwash water-in; The backwash water-in of V-type filter tank and more medium filter is connected the backwash water outlet of disinfection pool by pipeline, the backwash water-in of ultra filtration filter connects the backwash water outlet of ultrafiltration product water tank by pipeline; The backwash water outlet of V-type filter tank, more medium filter and ultra filtration filter is connected the backwash water-in of equalizing tank by pipeline.
The beneficial effects of the utility model are: the device that adopts steel wastewater and municipal wastewater combination treatment to carry out reuse again, according to the production feature of individual enterprise, time in short supply, utilizes the moisturizing of municipal wastewater as Iron and Steel Production at underground water or surface water resources; Make waste water reclaiming, save a large amount of new water resourcess, can solve iron and steel enterprise and be limited by the realistic problem of regional shortage of water resources, utilized the sewage treatment equipment resource of iron and steel enterprise, for the purifying treatment of municipal wastewater simultaneously.
Below in conjunction with drawings and Examples, the utility model is described in detail.
Brief description of the drawings
Fig. 1 is the utility model structure drawing of device.
Embodiment
As Fig. 1, the device of a kind of steel wastewater and the reuse of municipal wastewater mixed regeneration, comprises grille well 10, oil trap 20, equalizing tank 30, high dense settling pond 40, V-type filter tank 50, disinfection pool 60, ultra-filtration equipment 70, reverse osmosis unit 80; The input aperture of described grille well connects waste water of steel plants pipeline, the delivery port of grille well connects the input aperture of described oil trap by pipeline, the delivery port of described oil trap connects the waste water of steel plants input aperture of described equalizing tank by pipeline, equalizing tank is also provided with the municipal wastewater input aperture being connected with municipal wastewater pipeline;
The delivery port of equalizing tank connects the input aperture of described high dense settling pond by pipeline, the delivery port of high dense settling pond connects the input aperture in described V-type filter tank by pipeline, and the delivery port in V-type filter tank connects described disinfection pool by pipeline;
The delivery port of disinfection pool connects the access port of ultra-filtration equipment by pipeline, ultra-filtration equipment send mouthful the access port that connects described reverse osmosis unit by pipeline, reverse osmosis unit is provided with clear water output channel 81 and concentrated water discharge pipeline 82.
Described grille well be provided with one coarse rack 11 with together with fine fack 12, grille well is also provided with the Shaftless screw conveyor 13 that residue that grid is held back is discharged.
Described oil trap is to utilize floating method to remove the oil trap that relative density in sewage is less than 1 oil slick, is provided with oil skimmer vessel 21, (density of known water is 1) in oil trap.
The bottom of described equalizing tank is provided with the mixing submersible agitator 31 that sewage is carried out to mix and blend.
The delivery port of described equalizing tank connects the input aperture of described high dense settling pond by being provided with the pipeline of lift pump 32.
Described high dense settling pond comprises the front coagulation basin 41, reaction tank 42, preliminary sedimentation-concentration basin 43, inclined tube separate tank 44, the rear coagulation basin 45 that set gradually along water (flow) direction.
Described ultra-filtration equipment comprises the ultrafiltration lift pump 71, more medium filter 72, self-cleaning filter 73, ultra filtration filter 74, the ultrafiltration product water tank 75 that set gradually along treatment scheme.
Described reverse osmosis unit comprises the reverse osmosis booster pump 83, cartridge filter 84, reverse osmosis high-pressure pump 85, the reverse osmosis membrane group 86 that set gradually along treatment scheme; Described reverse osmosis membrane group is provided with clear water delivery port and dense water output, and described clear water delivery port connects described clear water output channel, and described dense water output connects described concentrated water discharge pipeline.
Described V-type filter tank, more medium filter and ultra filtration filter are respectively equipped with backwash water-in and backwash water outlet, and described disinfection pool and ultrafiltration are produced water tank and be respectively equipped with backwash water outlet, and described equalizing tank is provided with backwash water-in; The backwash water-in of V-type filter tank and more medium filter is connected the backwash water outlet of disinfection pool by backwash water supply line 91, the backwash water-in of ultra filtration filter connects the backwash water outlet of ultrafiltration product water tank by backwash water supply line; The backwash water outlet of V-type filter tank, more medium filter and ultra filtration filter is connected the backwash water-in of equalizing tank by backwash draining 92 pipelines.
Embodiment mono-:
As Fig. 1, the device of above-mentioned a kind of steel wastewater and the reuse of municipal wastewater mixed regeneration, comprises grille well 10, oil trap 20, equalizing tank 30, high dense settling pond 40, V-type filter tank 50, disinfection pool 60, ultra-filtration equipment 70, reverse osmosis unit 80;
Grille well be provided with coarse rack 11 that one mesh width is 25mm with together with the mesh width fine fack 12 that is 10mm, grille well is provided with the Shaftless screw conveyor 13 that residue that grid is held back is discharged.
The volume of oil trap is definite according to actual design, is provided with oil skimmer vessel 21 in oil trap, and the oil skimmer vessel in this enforcement is that oil number is the belt Oil scraper of 150 ls/h.
The volume of equalizing tank is definite according to actual design, and the bottom of equalizing tank is provided with four 5kw mixing submersible agitators 31 that sewage carried out to mix and blend.
On the pipeline that connects equalizing tank delivery port and high dense settling pond input aperture, be provided with lift pump 32.
Described high dense settling pond comprises the front coagulation basin 41, reaction tank 42, preliminary sedimentation-concentration basin 43, inclined tube separate tank 44, the rear coagulation basin 45 that set gradually along water (flow) direction; The volume of the volume of the volume of front coagulation basin, the volume of reaction tank, preliminary sedimentation-concentration basin, the volume of inclined tube separate tank, rear coagulation basin is determined according to actual design.
Ultra-filtration equipment comprises the ultrafiltration lift pump 71, more medium filter 72, self-cleaning filter 73, ultra filtration filter 74, the ultrafiltration product water tank 75 that set gradually along treatment scheme; Ultrafiltration lift pump is that flow is 400m 3the mixed flow pump of/h, self-cleaning filter is the strainer with electronic backwash function, and ultra filtration filter is YNTSH-DS-A3 type cross-flow backwash filter, and the volume that water tank is produced in ultrafiltration is 400 cubic metres.
Reverse osmosis unit comprises the reverse osmosis booster pump 83, cartridge filter 84, reverse osmosis high-pressure pump 85, the reverse osmosis membrane group 86 that set gradually along treatment scheme; Reverse osmosis booster pump is that flow is 167 m 3the water pump of/h, power 30kW, the flow of cartridge filter is 167 m 3/ h, reverse osmosis high-pressure pump is that flow is 167 m 3the water pump of/h, power 75KW.Reverse osmosis membrane group is provided with clear water delivery port and dense water output, and clear water delivery port connects clear water output channel 81, and dense water output connects concentrated water discharge pipeline 82.
V-type filter tank, more medium filter and ultra filtration filter are respectively equipped with backwash water-in and backwash water outlet, and described disinfection pool and ultrafiltration are produced water tank and be respectively equipped with backwash water outlet, and described equalizing tank is provided with backwash water-in; The backwash water-in of V-type filter tank and more medium filter is connected the backwash water outlet of disinfection pool by backwash water supply line 91, the backwash water-in of ultra filtration filter connects the backwash water outlet of ultrafiltration product water tank by backwash water supply line; The backwash water outlet of V-type filter tank, more medium filter and (ultra filtration filter) is connected the backwash water-in of equalizing tank by backwash draining 92 pipelines.
The each several part of this device connects by pipeline, forms a steel wastewater and municipal wastewater mixed regeneration reclamation set, and the de-mineralized water after its purification is got back to water reservoir for production system; Reverse osmosis unit produces the strong brine of water, supplements water and slag produced from steel-smelting use as blast furnace slag flushing.Device waste water of steel plants and the municipal wastewater mixture of processing 1000 cubic metres per hour of the present embodiment.
The residue that grid is held back is transported to grid slag case by Shaftless screw conveyor and stores, timing outward transport.The method of oil trap utilization floating is removed the oil slick that in sewage, relative density is less than 1, is provided with skimming plant 1 simultaneously and overlaps; The residence time of waste water in oil trap is 1.2 hours.Equalizing tank carries out the adjusting homogenizing of water quality, the water yield to steel wastewater and two kinds of water of municipal wastewater, waste water of steel plants and the residence time of municipal wastewater mixture in equalizing tank are 4 hours, and arrange 4 in bottom and mix submersible agitator, sewage in equalizing tank is carried out to mix and blend, prevent that mud, sedimentation of suspension are at the bottom of equalizing tank pond.Then by lift pump by the sewage lifting in equalizing tank in high dense settling pond.High dense settling pond system is divided into the synthesis of five unit: front coagulation, reaction tank, preliminary sedimentation-concentration basin and inclined tube separate tank, rear coagulation, the totally 21 minutes residence time of sewage.In high dense settling pond, need to add lime, coagulating agent, coagulant aids and sulfuric acid, now form clear water and thickened sludge, partial concentration mud refluxes, partial concentration mud be sent to mud concentrated between.Clear water enters V-type filter tank, and V-type filter tank adopts the quartz sand filtering layer of single-size as filtrate; Adopt the gas that does not make filtering layer expand, the surface sweep washing that water back flushing simultaneously has drainage concurrently; Adopt air cushion distribution air and special strainer head to carry out gas, water dispenser technique.The clean water basin of sterilizing of entering again, adopt clorox sterilization.Now, delivery turbidity ﹤ 5NTU, suspended substance ﹤ 15mg/l, oily ﹤ 2mg/l, COD ﹤ 40mg/l, reaches the requirement of the water inlet of ultra-filtration equipment.Finally enter ultra-filtration equipment and reverse osmosis unit.Clear electrical conductivity of water≤50 μ the S/cm of final reverse osmosis unit output, total hardness (in CaCO3)≤10 mg/l, chlorion≤5 mg/l, total dissolved solid≤20 mg/l, other indexs all can't check.The rate of recovery >=95% of ultra-filtration equipment, the rate of recovery >=75% of reverse osmosis unit, reverse osmosis desalination rate >=98%.Iron and steel enterprise is replaced under the situation of the new water of the Nature as moisturizing at municipal wastewater, and the water outlet after reverse osmosis still can reach the reuse standard of industrial de-mineralized water.

Claims (9)

1. a device for steel wastewater and the reuse of municipal wastewater mixed regeneration, comprises grille well, oil trap, equalizing tank, high dense settling pond, V-type filter tank, disinfection pool, ultra-filtration equipment, reverse osmosis unit; It is characterized in that, the input aperture of described grille well connects waste water of steel plants pipeline, the delivery port of grille well connects the input aperture of described oil trap by pipeline, the delivery port of described oil trap connects the waste water of steel plants input aperture of described equalizing tank by pipeline, equalizing tank is also provided with the municipal wastewater input aperture being connected with municipal wastewater pipeline;
The delivery port of equalizing tank connects the input aperture of described high dense settling pond by pipeline, the delivery port of high dense settling pond connects the input aperture in described V-type filter tank by pipeline, and the delivery port in V-type filter tank connects described disinfection pool by pipeline;
The delivery port of disinfection pool connects the access port of ultra-filtration equipment by pipeline, ultra-filtration equipment send mouthful the access port that connects described reverse osmosis unit by pipeline, reverse osmosis unit is provided with clear water output channel and concentrated water discharge pipeline.
2. the device of a kind of steel wastewater according to claim 1 and the reuse of municipal wastewater mixed regeneration, it is characterized in that, described grille well be provided with coarse rack that one mesh width is 25mm with together with the mesh width fine fack that is 10mm, grille well is also provided with the Shaftless screw conveyor that residue that grid is held back is discharged.
3. the device of a kind of steel wastewater according to claim 1 and the reuse of municipal wastewater mixed regeneration, is characterized in that, described oil trap is to utilize floating method to remove the oil trap that relative density in sewage is less than 1 oil slick, is provided with oil skimmer vessel in oil trap.
4. the device of a kind of steel wastewater according to claim 1 and the reuse of municipal wastewater mixed regeneration, is characterized in that, the bottom of described equalizing tank is provided with the mixing submersible agitator that sewage is carried out to mix and blend.
5. the device of a kind of steel wastewater according to claim 1 and the reuse of municipal wastewater mixed regeneration, is characterized in that, the delivery port of described equalizing tank connects the input aperture of described high dense settling pond by being provided with the pipeline of lift pump.
6. the device of a kind of steel wastewater according to claim 1 and the reuse of municipal wastewater mixed regeneration, it is characterized in that, described high dense settling pond comprises the front coagulation basin, reaction tank, preliminary sedimentation-concentration basin, inclined tube separate tank, the rear coagulation basin that set gradually along water (flow) direction.
7. the device of a kind of steel wastewater according to claim 1 and the reuse of municipal wastewater mixed regeneration, it is characterized in that, described ultra-filtration equipment comprises the ultrafiltration lift pump, more medium filter, self-cleaning filter, ultra filtration filter, the ultrafiltration product water tank that set gradually along treatment scheme.
8. the device of a kind of steel wastewater according to claim 1 and the reuse of municipal wastewater mixed regeneration, it is characterized in that, described reverse osmosis unit comprises the reverse osmosis booster pump, cartridge filter, reverse osmosis high-pressure pump, the reverse osmosis membrane group that set gradually along treatment scheme; Described reverse osmosis membrane group is provided with clear water delivery port and dense water output, and described clear water delivery port connects described clear water output channel, and described dense water output connects described concentrated water discharge pipeline.
9. according to the device of a kind of steel wastewater described in claim 1 or 7 or 8 and the reuse of municipal wastewater mixed regeneration, it is characterized in that, described V-type filter tank, more medium filter and ultra filtration filter are respectively equipped with backwash water-in and backwash water outlet, described disinfection pool and ultrafiltration are produced water tank and are respectively equipped with backwash water outlet, and described equalizing tank is provided with backwash water-in; The backwash water-in of V-type filter tank and more medium filter is connected the backwash water outlet of disinfection pool by pipeline, the backwash water-in of ultra filtration filter connects the backwash water outlet of ultrafiltration product water tank by pipeline; The backwash water outlet of V-type filter tank, more medium filter and ultra filtration filter is connected the backwash water-in of equalizing tank by pipeline.
CN201320810242.8U 2013-12-11 2013-12-11 Device for mixing and recycling steel waste water and municipal sewage Active CN203700070U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105254065A (en) * 2015-10-21 2016-01-20 内蒙古包钢钢联股份有限公司 Multi-path low-energy-consumption recycling system for steel wastewater
CN107651775A (en) * 2017-09-29 2018-02-02 四川德胜集团钒钛有限公司 Slag cooling waste water recovery and processing system
CN108218007A (en) * 2018-02-13 2018-06-29 鞍钢股份有限公司 A kind of urban life Treated sewage reusing is in the method for integrated iron and steel works
CN111919754A (en) * 2020-09-16 2020-11-13 王灵琳 Potato tissue culture method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105254065A (en) * 2015-10-21 2016-01-20 内蒙古包钢钢联股份有限公司 Multi-path low-energy-consumption recycling system for steel wastewater
CN107651775A (en) * 2017-09-29 2018-02-02 四川德胜集团钒钛有限公司 Slag cooling waste water recovery and processing system
CN108218007A (en) * 2018-02-13 2018-06-29 鞍钢股份有限公司 A kind of urban life Treated sewage reusing is in the method for integrated iron and steel works
CN111919754A (en) * 2020-09-16 2020-11-13 王灵琳 Potato tissue culture method

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