CN205500999U - Washing wastewater that sprays paint handles recycling system - Google Patents

Abstract

The utility model discloses a washing wastewater that sprays paint handles recycling system, including the wastewater collection case, the initial response water tank, electricity flocculation circulation case, high frequency electric electrolytic flocculation device, second reaction water tank, concentrated tank, the sludge press filtration device, the tubular micro -filtration membrane device, in and the water tank, belt cleaning device and charge device, this wastewater collection case, the initial response water tank, electricity flocculation circulation case, high frequency electric electrolytic flocculation device, second reaction water tank, concentrated tank, the tubular micro -filtration membrane device, in with the water tank consecutive, this sludge press filtration device links to each other with concentrated tank, this belt cleaning device links to each other with the tubular micro -filtration membrane device, this charge device is respectively with first, second reaction water tank links to each other with the water tank in with. By this, through utilize wastewater collection case, initial response water tank, electricity flocculation circulation case, high frequency electric electrolytic flocculation device, second reaction water tank, concentrated tank, sludge press filtration device, tubular micro -filtration membrane device in, and water tank and charge device handle waste water, realize energy saving and emission reduction's purpose.

Description

Spray paint and clean wastewater treatment and renovation system

Technical field

This utility model relates to sewage treatment equipment art, refer in particular to one spray paint cleaning wastewater treatment and renovation system System.

Background technology

In automobile, household electrical appliances, furniture industry and partly plastic processing industry, coating operation mostly uses modern spraying skill Art, is carried out in hermetic container formula paint spray booth or paint workshop, and outfit is sent accordingly, exhaust system, dampness paint removal system.This wet The main purpose of gas paint removal mist system is: remove over-sprayed paint fog；Prevent coating cloud from treating the pollution of spray piece；Keep the scene intact work of spraying paint The health of personnel, spray pretend in industry frequently with dampness paint spray booth use water as absorbent, constitute spray chamber circulating water.

Along with the development of modern application techniques, paint consumption increases day by day, it will usually have paint not greatly to be coated with Install on workpiece, become overspray paint, severe contamination surrounding air and environment.It is currently used for clearing up the method sprayed paint mainly Mechanical curettage method, owing to paint viscosity is big, paint can not thoroughly be removed, and this method treatment effeciency is low.So spraying paint in wet type Commonly used paint waste water treatment agents in processing equipment, paint spray waste water treatment agent is for processing the row such as automobile, mobile phone and furniture Industry damp process sprays paint the useless paint produced in recirculated water, this medicament can by adsorbing, disperse, destroying the Chemical Physics principles such as decomposition, Make the paint falling into recirculated water in painting process be disperseed, condense, inharmonious, and be prone to be separated from the water out, thus reach to follow The purpose of ring water long period safety and economic operation.Present water treatment agent depression effeCt is bad, and pour point depression rate is the highest so that recirculated water Utilizing number of times few, utilization rate is the highest.Therefore, one should be designed and spray paint cleaning wastewater treatment and renovation system to solve the problems referred to above.

Utility model content

In view of this, this utility model is for the disappearance of prior art existence, and its main purpose is to provide one and sprays paint clearly Wash wastewater treatment and renovation system, utilize sewage collecting box, the first reaction water tank, electricity flocculation circulating box, high-frequency electrical flocculation plant, the Waste water is carried out by two reaction water tanks, concentration water tank, sludge press filtration device, tube type filter membrance device, neutralization water tank and chemicals dosing plant Process, it is achieved the purpose that energy-saving and emission-reduction, cleaning produce.

For achieving the above object, this utility model uses such as purgation technical scheme:

One is sprayed paint and is cleaned wastewater treatment and renovation system, includes sewage collecting box, the first reaction water tank, electricity flocculation circulation Case, high-frequency electrical flocculation plant, second reaction water tank, concentrate water tank, sludge press filtration device, tube type filter membrance device, neutralize water tank, Cleaning device and chemicals dosing plant, connecting between this sewage collecting box and the first reaction water tank has the first elevator pump；This first reaction It is connected between water tank with electricity flocculation circulating box and has the second elevator pump；This electricity flocculation circulating box is connected between high-frequency electrical flocculation plant Having electricity flocculation elevator pump, the liquid outlet of this high-frequency electrical flocculation plant is connected with electricity flocculation circulating box and the second reaction water tank respectively； The liquid outlet of this second reaction water tank is connected with concentrating water tank, and this concentration water tank has liquid outlet and mud discharging mouth, this mud Filter-pressing device includes sludge pump, pressure filter, filtrate box and filtrate pump, and this sludge pump is connected to concentrate the mud discharging mouth of water tank And between pressure filter, this filtrate box is connected to the liquid outlet of pressure filter, this filtrate pump is connected to liquid outlet and the concentration of filtrate box Between water tank；It is connected between the liquid outlet of this concentration water tank with tube type filter membrance device and has a circulating pump；This tube type filter membrance fills Putting and have inlet, clear water output and dense water out, this clear water output is connected with neutralizing water tank, this dense water out and concentration water tank It is connected；This cleaning device includes flushing water pump and a plurality of cleaning water tank, this flushing water pump be connected to wherein one clean water tank with Between the inlet of tube type filter membrance device；This chemicals dosing plant includes for the first reaction water tank and the acid of neutralization water tank dosing Liquid dosing tank and for second reaction water tank dosing alkali liquor dosing tank.

As a kind of preferred version: described electricity flocculation circulating box includes the first ionization water tank and the second ionization water tank, this is the years old One ionization water tank and the second ionization water tank respectively with above-mentioned second elevator pump, electricity flocculation elevator pump and the going out of high-frequency electrical flocculation plant Liquid mouth is connected.

As a kind of preferred version: described concentration water tank is provided with one for controlling the liquid level of above-mentioned circulating pump start and stop Meter.

As a kind of preferred version: described cleaning device also has a cleaning sewage collecting box, above-mentioned tube type filter membrance fills The clear water output put can be connected with cleaning sewage collecting box and above-mentioned a plurality of cleaning water tank by open and close type respectively with dense water out.

As a kind of preferred version: in described first reaction water tank, pH value is 3-4, and in the second reaction water tank, pH value is 8-9, Neutralizing pH value in water tank is 6.5-8.5.

This utility model compared with prior art has clear advantage and beneficial effect, specifically, by above-mentioned technology Scheme understands, and by collecting the rinse water of spraying paint produced in production process, pipeline causes the cleaning sewage collecting box that sprays paint, through useless Water collection tank, the first reaction water tank, electricity flocculation circulating box, high-frequency electrical flocculation plant, the second reaction water tank, concentration water tank, mud Waste water is processed by filter-pressing device, tube type filter membrance device, neutralization water tank and chemicals dosing plant, makes product water meet the cleaning of user Recycle water standard, reuse is to matting, it is achieved energy-saving and emission-reduction, cleaning produce.

For more clearly illustrating architectural feature of the present utility model and effect, it is right to come with specific embodiment below in conjunction with the accompanying drawings It is described in detail.

Accompanying drawing explanation

Fig. 1 is the wastewater treatment process schematic diagram of this utility model.

Accompanying drawing identifier declaration:

10, sewage collecting box 20, first reacts water tank

30, electricity flocculation circulating box 31, first ionizes water tank

32, the second ionization water tank 40, high-frequency electrical flocculation plant

41, liquid outlet 50, second reacts water tank

60, water tank 61, liquid outlet are concentrated

62, mud discharging mouth 63, liquidometer

70, sludge press filtration device 71, sludge pump

72, pressure filter 73, filtrate box

74, filtrate pump 80, tube type filter membrance device

81, inlet 82, clear water output

83, dense water out 90, neutralization water tank

100, cleaning device 101, cleaning sewage collecting box

102, flushing water pump 103, cleaning water tank

110, chemicals dosing plant 111, acid solution dosing tank

112, alkali liquor dosing tank the 120, first elevator pump

130, the second elevator pump 140, electricity flocculation elevator pump

150, circulating pump.

Detailed description of the invention

This utility model as shown in Fig. 1, one spray paint cleaning wastewater treatment and renovation system, include sewage collecting box 10, First reaction water tank 20, electricity flocculation circulating box 30, high-frequency electrical flocculation plant 40, second react water tank 50, concentrate water tank 60, mud Filter-pressing device 70, tube type filter membrance device 80, neutralization water tank 90, cleaning device 100 and chemicals dosing plant 110, wherein:

It is connected between this sewage collecting box 10 with the first reaction water tank 20 and has the first elevator pump 120, this sewage collecting box 10 In water inject in the first reaction water tank 20 through the first elevator pump 120 (0.75KW).

It is connected between this first reaction water tank 20 with electricity flocculation circulating box 30 and has the second elevator pump 130, this first reaction water In case 20, water is in the second elevator pump 130 (0.75KW) injects electricity flocculation circulating box 30.

Being connected between this electricity flocculation circulating box 30 and high-frequency electrical flocculation plant 40 and have electricity flocculation elevator pump 140, this electricity flocculates Circulating box 30 includes the first ionization water tank 31 and the second ionization water tank 32, this first ionization water tank 31 and second 32 points of water tank of ionization The not liquid outlet 41 with above-mentioned second elevator pump 130, electricity flocculation elevator pump 140 and high-frequency electrical flocculation plant 40 is connected, and this is first years old In ionization water tank 31 and the second ionization water tank 32, water injects high-frequency electrical flocculation plant 40 through electricity flocculation elevator pump 140 (0.75KW) In.

The liquid outlet 41 of this high-frequency electrical flocculation plant 40 respectively with the first ionization water tank 31 and the second ionization water tank 32 and the Two reaction water tanks 50 are connected.

The liquid outlet of this second reaction water tank 50 is connected with concentrating water tank 60.

This concentration water tank 60 has liquid outlet 61 and mud discharging mouth 62.

This sludge press filtration device 70 includes sludge pump 71, pressure filter 72, filtrate box 73 and filtrate pump 74, this sludge pump 71 Being connected to concentrate between mud discharging mouth 62 and the pressure filter 72 of water tank 60, what this filtrate box 73 was connected to pressure filter 72 goes out liquid Mouthful, this filtrate pump 74 is connected to the liquid outlet of filtrate box 73 and concentrates between water tank 60；

It is connected between the liquid outlet 61 of this concentration water tank 60 and tube type filter membrance device 80 and has a circulating pump 150, condensed water In case 60, liquid declines in filter membrane device 80 through circulating pump 150 (2.2KW) ascending pipe, and is provided with a use in concentrating in water tank 60 In the liquidometer 63 controlling the start and stop of above-mentioned circulating pump 150.

This tube type filter membrance device 80 has inlet 81, clear water output 82 and dense water out 83, this clear water output 82 with Neutralizing water tank 90 to be connected, this dense water out 83 is connected with concentrating water tank 60.

This cleaning device 100 includes cleaning sewage collecting box 101, flushing water pump 102, a plurality of cleaning water tank 103, and this is clear Wash water pump 102 (0.75KW) is connected to wherein one clean between water tank 101 and the inlet 81 of tube type filter membrance device 80；Above-mentioned The clear water output 82 of tube type filter membrance device 80 and dense water out 83 respectively can open and close type and cleaning sewage collecting box 101 and above-mentioned A plurality of cleaning water tanks 103 are connected.

This chemicals dosing plant 110 includes being arranged at the first reaction water tank 20 and neutralizing the acid solution dosing tank 111 above water tank 90 And it being arranged at the alkali liquor dosing tank 112 above the second reaction water tank 50, in the first reaction water tank 20, pH value is 3-4, and second is anti- Answering pH value in water tank 50 is 8-9, and neutralizing pH value in water tank 90 is 6.5-8.5.

This set Waste Water Treatment mainly have employed the continuous high frequency pulse electro-flocculation+VF tubular type membrane treatment process of advanced person, Handling process is without any flocculant.

The electrolysis of conventional low voltage height electric current broken through by high-frequency electrical flocculation plant 40, uses the high-tension pulse of high voltage small area analysis Punching electricity flocculence, utilizes electrochemical principle, produces electrochemical reaction by applying high voltage effect, electric energy is converted into chemistry Can, in specific electricity flocculation apparatus flow process, the organic or inorganic polluter in waste water is aoxidized and reduction reaction, enters And condense, floating except pollutant are separated from water body, to oil emulsion, larger molecular organics, microorganism, heavy metal ion, fluorine from Son, turbidity and part coloured class material have good removal effect, the huge sum of money such as including Cr6+, Zn2+, Ni2+, Cu2+, Cd2+ Belong to, CN, oil, phosphate and COD, the various noxious pollutants such as SS and colourity.Comparing with traditional chemical coagulation, high-frequency electrical is flocculated Device 40 processes that technique has good separating effect, body refuse moisture content is low, floor space is little, be easily achieved advantages such as automatically controlling.

The high-frequency direct-current electric current following functional characteristics of tool:

Biological effect:

When pollutant during high frequency electric puts on water, owing to the frequency of electric current is high, direction change is fast, make band pollutant Ion in tissue will not occur significant displacement, varying less of ion concentration, can only vibrate back and forth near equilbrium position, The heat because of friction, so high-frequency electrical flocculation also can produce heat effect.

Heat effect:

Owing to high frequency electric causes the motion of the interior microgranule of band pollutant tissue, in the liquid of band pollutant, just can produce heat Effect, it is as follows that it produces principle:

When high frequency electric is by the liquid tissue of band pollutant, the liquid intermediate ion (A) of band pollutant, charged colloidal particle Grain (B) produces quick moving back and forth or vibrating along electric lines of force direction in the electric field, passes through groups of contaminants conducting current forms Knitting, the electrolyte molecule (C) (D) in the liquid of band pollutant is in high-frequency electric field, and non-polar molecule produces electron displacement polarization, has Pole molecule produces orientation polarization, is organized by pollutant with dielectric displacement current forms, along with increasing of frequency, conducts shared by electric current Proportion gradually decrease and displacement current proportion is gradually increased.When high frequency electric is by liquid, conduction electric current causes body Interior ohm consume, displacement current causes the dielectrical loss in liquid, thus produces the thermal effect that degree is different in various tissues Should.(1) high frequency electric → conductor part → ion and charged colloidal particle vibrate → conduct the consume of electric current (including eddy current) → ohm → Heat effect.(2) high frequency electric → electrolyte (including electric capacity) → dipole orientation and rotation → displacement current → dielectrical loss → Heat effect.

Non-thermal effect:

When above change intensity little to be not enough to produce temperature raise in the case of, high frequency electric still can make ion, charged Colloid, dipole generation vibration and rotation, the most likely change tissue change, biophysical properties, i.e. electromagnetic field vibration effect Should.Such as the selectivity point-like heat production produced due to resonance absorption；Butterfat, erythrocyte charged particle is along electroline one-tenth arranged evenly Beading (E) phenomenon, in the liquid of band pollutant, magnetisable material is by magnetic field change etc. in various degree, consequent biology Learn effect and claim non-thermal effect.

High-frequency electrical flocculation has following function, and water quality situation can be depended on to adjust:

Shortwave electricity flocculates:

Application wavelength is that the high-frequency alternating current of 100～10 meters produces magnetic field institute or electric field with this in the liquid of band pollutant The method reaching electricity flocculation purpose, claims shortwave electricity flocculence.Owing to using cable coil electrode, during electricity flocculation, mainly utilize height Frequently alternating electromagnetic field causes tissue heat production by producing eddy current during band contaminant fluid tissue.Shortwave electricity flocculence produces whirlpool electricity Stream belongs to conduction electric current, the liquid that emphasis effect resistance is little, reaches electricity flocculation by the liquid of band pollutant and electrode distance.

Ultrashort wave electricity flocculates:

Application wavelength 10～the liquid of the hyperfrequency ac process band pollutant of 1 meter, with reach electricity flocculation method, Conventional capacitive field electricity flocculation, also known as hyperfrequency electricity flocculence, principal biological effect is heat effect and non-thermal effect, its heat Effect is incomplete same with shortwave, and because of under ultra high frequency electrical field effect, with displacement current point advantage, dielectric loss heat production is main, Heat production distribution ratio is more uniform, but due to some pollutant, heat is difficult to take away for current, and it is overheated to be easily generated, when actual electrotherapy Adjustable elevates the temperature with electrode distance.Ultrashort wave is using low-intensity effect, and can not measure temperature with a current blanking method During rising, the most clearly, same external heat effect is then without similar effect for its biological effect.Non-thermal effect is made in low-intensity Substantially, during high intensity effect, this special role is just covered by heat effect in used time performance.

Microwave electricity flocculates:

Microwave electricity flocculence be application wavelength be 1 meter～1 millimeter superfrequency Electromagnetic Field in process sewage method, It from shortwave, ultrashort wave different, be a kind of directional electromagnetic radiation therapy, microwave can be divided into decimetric wave according to wavelength difference (wavelength 100～10cm), centimeter wave (wavelength 10～1cm frequency 2,450Hz).The wavelength of microwave between long-wave infrared with ultrashort Between ripple, therefore some physical property is similar to light wave, as propagated in wave beam shape, has and fills the air performance, and meeting different medium can cause Reflection, refraction, diffraction, absorb, gathering etc.；During the liquid of microwave radiation band pollutant, part energy is absorbed, another part Energy is then reflected by each layer tissue, and the tissue being wherein imbued with moisture more absorbs microwave energy, and fatty tissue reflects relatively Many.Therefore the heat effect of microwave should be big with the material heat production that the tissue and interface that are imbued with moisture content is many.

Radio frequency electrical flocculates:

Employing wireless electric wave acts on the method for sewage disposal and is referred to as radio frequency electrical flocculence.High frequency, hyperfrequency and superfrequency (microwave) electromagnetic wave broadly falls into radio-frequency region.The mechanism of action: due to some contamination thing growth shortwave and microwave band, mainly profit With its high temperature produced to process.The mechanism of action: due to pollutant growth deformity, when radio-frequency electrical energy is that tissue resorption is changed into heat Can and when making pollutant tissue temperature raise, thus reach demolition purpose, pH reduction；Make the intracellular deoxidation of pollutant simultaneously Ribonucleic acid, ribonucleic acid and protein synthesis are suppressed, in addition the lysosome increased activity in pollutant cytoplasm, and have The newest lysosome produces, and finally results in pollutant and dissolves.Meanwhile, the S phase cell resisting lonizing radiation is most sensitive to high temperature, easily It is killed, moreover it is possible to strengthen the weary oxygen phase cell sensitivity to lonizing radiation.Therefore, radiofrequency hyperthermia electricity flocculence can significantly improve effect Really.

Compare with traditional chemical coagulation, high-frequency electrical flocculation plant process technique have good separating effect, body refuse moisture content low, Floor space is little, be easily achieved advantages such as automatically controlling.

High-frequency electrical flocculation plant main feature:

Stable: it is steady that high-frequency electrical flocculation plant processes process operation, water stabilization, overcome owing to medicament is raw simultaneously Produce the change of producer, pharmacy quality change, dosages distribution change, the change of added amount of chemical and water change of water quality etc. because of The instability of the process quality that element causes；

Operating cost is low: investing and traditional agent-feeding treatment technique are substantially suitable, but operating cost only tradition adds Medicine processes the 1/10 of technique；Directly powering (commercial power 220V/380V can directly power) with alternating current, little power consumption (processes 1m3 Waste water power consumption is 1 ~ 3 kW.h, concrete depending on water quality situation), only chemical method and the 1/5～1/3 of other processing method；

Reduce sludge quantity: the sludge quantity that high-frequency electrical flocculation plant facture produces produces than traditional agent-feeding treatment technique Sludge quantity few 40%, thus greatly reduce the disposal expense of mud；

Floor space is few: cost of investment is relatively low, range is wide, occupation area of equipment is few, and about 0.5m2/CMD(the most only accounts for The 1/5 of general biochemical treatment)；

High treating effect: the hydroxide that high-frequency electrical flocculation plant 40 facture produces is higher than the activity of medical method, cohesion High adsorption capacity, high treating effect, can reach A2 level water standard (method of chemical treatment is difficult to reach)；In continuous high frequency pulse During electricity flocculation treatment, the oxygen that anode produces and chlorine can make Organic substance occur oxidation to become harmless components, and play and kill Bacterium effect；In continuous high frequency pulse electro-flocculation film processing procedure, the reduction that negative electrode occurs makes oxidized form pigment reduce And become colourless substance；

Controllability is high: can be obtained by regulation pole plate combination, voltage strength, electric current density, pH value, electrical conductivity etc. Good treatment efficiency；

Automatic Control: use logical formula control system full-automatic control system, easy to operate simply, safeguard easily, labor Fatigue resistance is low；

Service life is long: be more than 10 years in the normal and proper use of lower life-span.

Tube type filter membrance device 80 is that a kind of tubular membrane filters, and it is low that it is dependent on that solid separated from solution by film Pressure separating technology.Now have been widely used for abrasive waste water circulating and recovering.VF system simple is presented herein below introduce and operation step Rapid:

The water outlet of (1) second reaction water tank 50 flows to concentrate in water tank 60 by gravity, has started solid-liquid separation.From concentration Water in water tank 60 is risen in tube type filter membrance device 80 by circulating pump 150.

(2) utilizing crossflow filtration technique, the mud in waste water is got at a high speed in the middle of membrane tube, is then return to concentrate water tank 60.Primary water or infiltration water regulate to the final water tank 90 that neutralizes through film is laggard.Often by film once, mud just concentrates a bit. In order to stop quickly blocking or dirty stifled film gas to be used and clean product water backwash.Thus force fenestra interior or the blocking on film surface Thing returns in sludge stream.

(3) in concentration water tank 60, it is mounted with that a set of liquidometer 63 is to control the start and stop of circulating pump 150.Concentrate water tank 60 Purpose is to ensure that is got to the water solid concentration of membrane module between 3%-5%, and the dehydration of solid is automatic.Concentrate water tank 60 Solid is got in pressure filter 72 or sludge concentration tank with a sludge pump 71, and the cycle of sludge pump 71 and frequency are to automatically control 's.Sometimes operations staff needs to do a simple sedimentation test from the concentration inner sampling of water tank 60.The result of this test may Field adjustment is carried out sometimes for sludge pump 71.

(4) produce discharge to monitor continuously.If operations staff observe flow low to predetermined value time, then being accomplished by of film Learn and clean.According to the arranged of membrane module, all or part of film can be carried out.Clean and once need 2 ~ 3 hours Complete.When cleaning operation, operations staff needs hand switch valve.Acidic cleaning solution is used for cleaning inorganic foulants, and NaClO uses Carry out organics removal.Before again putting into operation, need to use fresh water flushing membrane.Chemical cleaning tank and fresh water tank and circulation Pump is the major part of purging system on the spot.

(5) the product water of membrane module flows to neutralize in water tank under stress.

(6) mud concentrated in water tank 60 is periodically got to sludge concentration tank or pressure filter 72 by sludge pump 71.

Tube type filter membrance device 80 include fixed mount, back washing device, circulating pump, on the spot purging system, purge tank, pneumatic every Membrane pump, Electric control, instrument, dense water pot etc..This system has assorted all pipelines, cable and the equipment run.

1. the technique comparing traditional coagulating sedimentation+sand filtration, its advantage is as follows:

Automaticity is the highest, simple to operate

Filtering water (absolute membrane filtration) reliably

Can be with intermittent duty

Owing to need not rapid subsidence, so decreasing the interpolation of water treatment agent, such as PAM, PAC

Product discharge can be increased by the quantity increasing film

2. technical performance (see table)

3. market segment and concrete application (see table)

Waste water treatment process principle:

This Waste Water Treatment uses the combined treatment process of continuous high frequency pulse electro-flocculation+tube type filter membrance filtering technique Technology carries out qualified discharge process to it.

(1) organic substance contained in waste water, enters high-frequency electrical flocculation plant 40, in acid condition inside device A series of electrochemical reactions that the high-frequency pulse current occurred causes, break up organic substance and become the organic substance of little molecule, And there is redox simultaneously, and then organic pollution qualitative response is formed float and is removed by filtration, significantly drop COD value content in low waste water and the colourity of removal waste water；

(2) the dry mud cake that thickened sludge is formed after pressure filter 72 is dehydrated is sent to disposal centre process.Filtrate returns Reprocess to concentrating water tank 60.

Cleaning wastewater treatment and renovation step of spraying paint is as follows:

(1) cleaning wastewater collection of being sprayed paint in workshop is in sewage collecting box 10, to reach buffering and the purpose of equilibrium water quality；

(2) by the first elevator pump 120, waste water in sewage collecting box 10 is injected in the first reaction water tank 20, and in first Adding acid medicinal liquid in reaction water tank 20, making water PH in the first reaction water tank 20 is 3-4 for value.

(3) by the second elevator pump 130, water in first reaction water tank 20 is injected separately into the first ionization water tank 31 and second Ionization water tank 32 carries out ionization process, and by electricity flocculation elevator pump 140 by the first ionization water tank 31 and the second ionization water tank 32 In the water crossed through ionization process inject in high-frequency electrical flocculation plant 40, the internal high-frequency impulse occurred of high-frequency electrical flocculation plant 40 The chemical reaction that electric current causes, breaks up Organic substance in water matter as small molecule organic material, and redox reaction occurs simultaneously, And then organic pollution qualitative response is formed float and is removed by filtration, the COD value content being greatly lowered in waste water and going Except the colourity of waste water, the water processed through high-frequency electrical flocculation plant 40 turns again to the first ionization water tank 31 and the second ionizing water Case 32 carries out ionization process, inject circular treatment in high-frequency electrical flocculation plant 40 through electricity flocculation elevator pump 140 the most again until In water COD value content and colourity up to standard after, flow into second reaction water tank 50 in, in second reaction water tank 50 in add carbon dust, alkali Property medicinal liquid so that it is the pH value of water is 8-9；

Water in (4) second reaction water tanks 50 relies on gravity to enter and concentrates in water tank 60, carry out solid-liquid separation, and mud passes through Sludge pump 71 is extracted in pressure filter 72 and carries out filter pressing and be processed into mud cake and filtrate, and filtrate enters in filtrate box 73, by filtrate pump 74 Again return to concentrate in water tank 60 and carry out concentration；

(5) concentrate liquid in water tank 60 and decline in filter membrane device 80 through circulating pump 150 ascending pipe, tube type filter membrance device 80 carry out cross flow filter process, are divided into the dense water containing mud and primary water and infiltration water, return to dense water concentrate in water tank 60, Primary water and infiltration water being flowed into neutralizes in water tank 90, adds acid medicinal liquid in neutralizing so that it is pH value reaches 6.5-in water tank 90 8.5；Staff observe tube type filter membrance device 80 flow low to predetermined value time, use clean device 100 it is carried out clearly Wash process.

Design focal point of the present utility model is, by collecting the cleaning waste water that sprays paint produced in production process, by pipeline Cause the cleaning sewage collecting box that sprays paint, through sewage collecting box, first reaction water tank, electricity flocculation circulating box, high-frequency electrical flocculation plant, Waste water is entered by the second reaction water tank, concentration water tank, sludge press filtration device, tube type filter membrance device, neutralization water tank and chemicals dosing plant Row processes, and makes product water meet the cleaning recycle water standard of user, and reuse is to matting, it is achieved energy-saving and emission-reduction, cleaning produce.

The above, be only preferred embodiment of the present utility model, not make technical scope of the present utility model Any restriction, thus every according to technical spirit of the present utility model to any trickle amendment made for any of the above embodiments, equivalent become Change and modify, all still falling within the range of technical solutions of the utility model.

Claims (5)

1. one kind spray paint cleaning wastewater treatment and renovation system, it is characterised in that: include sewage collecting box, first reaction water tank, Electricity flocculation circulating box, high-frequency electrical flocculation plant, the second reaction water tank, concentration water tank, sludge press filtration device, tube type filter membrance dress Putting, neutralize water tank, clean device and chemicals dosing plant, connecting between this sewage collecting box and the first reaction water tank has the first lifting Pump；It is connected between this first reaction water tank with electricity flocculation circulating box and has the second elevator pump；This electricity flocculation circulating box is wadded a quilt with cotton with high-frequency electrical Connecting between solidifying device and have electricity flocculation elevator pump, the liquid outlet of this high-frequency electrical flocculation plant flocculates with electricity circulating box and second respectively Reaction water tank is connected；The liquid outlet of this second reaction water tank is connected with concentrating water tank, and this concentration water tank has liquid outlet and mud Floss hole, this sludge press filtration device includes sludge pump, pressure filter, filtrate box and filtrate pump, and this sludge pump is connected to condensed water Between mud discharging mouth and the pressure filter of case, this filtrate box is connected to the liquid outlet of pressure filter, and this filtrate pump is connected to filtrate box Liquid outlet and concentrate between water tank；It is connected between the liquid outlet of this concentration water tank with tube type filter membrance device and has a circulating pump； This tube type filter membrance device has inlet, clear water output and dense water out, and this clear water output is connected with neutralizing water tank, this dense water Export and be connected with concentration water tank；This cleaning device includes flushing water pump and a plurality of cleaning water tank, and this flushing water pump is connected to it In one clean between water tank and the inlet of tube type filter membrance device；This chemicals dosing plant include for first reaction water tank and in With the acid solution dosing tank of water tank dosing and for the alkali liquor dosing tank to the second reaction water tank dosing.

Cleaning wastewater treatment and renovation system of spraying paint the most according to claim 1, it is characterised in that: described electricity flocculation circulating box Promote with above-mentioned second respectively including the first ionization water tank and the second ionization water tank, this first ionization water tank and the second ionization water tank The liquid outlet of pump, electricity flocculation elevator pump and high-frequency electrical flocculation plant is connected.

Cleaning wastewater treatment and renovation system of spraying paint the most according to claim 1, it is characterised in that: described concentration water tank sets It is equipped with one for controlling the liquidometer of above-mentioned circulating pump start and stop.

Cleaning wastewater treatment and renovation system of spraying paint the most according to claim 1, it is characterised in that: described cleaning device also has There are a cleaning sewage collecting box, the clear water output of above-mentioned tube type filter membrance device and dense water out can to give up with cleaning by open and close type respectively Water collection tank and above-mentioned a plurality of cleaning water tank are connected.

Cleaning wastewater treatment and renovation system of spraying paint the most according to claim 1, it is characterised in that: described first reaction water tank Middle pH value is 3-4, and in the second reaction water tank, pH value is 8-9, and neutralizing pH value in water tank is 6.5-8.5.