KR102306422B1 - Controllable Reusing Equipment for Washing Water of Metal Working Process by Rotated Electrolytic Ionizer and New Hydro-cyclone - Google Patents

Abstract

The controlled metal processing process water reuse device of the present invention ionizes, settles, and separates electrically stable neutral fine particles in the metal processing process water, and filtrates and reuses the residual turbidity in the effluent, a rotary electrode ionizer, a rapid agitation condenser and slow speed It is composed of agitated condenser, centrifugal hydrocyclone and microfilter.
The rotating electrode ionizer (2) of the controlled metal processing process water reuse device of the present invention converts electrically neutral fine metal chips and neutral fine particles such as oxide scale and emulsified oil to a rotating electrode (2) controlled to an appropriate current density. It is ionized while preventing polarization with -1), and it is possible to aggregate even with a very small amount of coagulant in the rapid stirring agglomeration machine (3).
Centrifugal separation hydrocyclone (6) of the present invention is a device that separates particles having a fluid inflow rate of 10 to 15 cm/sec, an inflow pressure of 1 to 1.5 atm, and a fluid specific gravity close to 1 by centripetal force of the tea-cup effect. It is composed of a screw tube shaft (6-6), a hydrocyclone screw tube shaft (6-6) and a hydrocyclone inclined screw (6-7) inclined at 45 degrees to maximize the separation efficiency of light particles flowing in at low speed.
Trace residual turbidity in the effluent sedimented and floated in the centrifugal separation hydrocyclone (6) is filtered by a microfilter (7) to prevent clogging of the filter and extend the life of the metalworking process water. It is a water reuse device.

Description

Controllable Reusing Equipment for Washing Water of Metal Working Process by Rotated Electrolytic Ionizer and New Hydro-cyclone

.

[Technical field to which the invention belongs and prior art in that field]

The metal processing process water of the present invention is water used for surface cleaning, and water used for a long time shows high turbidity including fine metal chips, oxide scale, and trace emulsified oil. and turbidity should be treated. Metal working process oil or cutting oil such as water-soluble cutting oil used in the metal processing process contains a base oil concentration of 5% or more. classified and processed. The following is the state of the prior art for the treatment or reuse of wastewater containing particulate matter or metal processing process water or other process water containing metal chips, oil, sludge, and the like. A general treatment method for particulate matter is mainly by filtration or flotation separation of particles using microbubbles. The treatment method of other oil (oil) is oil-water separation or centrifugation.

Patent Registration No. 10-1576379 relates to a washing water cleaning device for machine tools, which can be reused after completely removing impurities contained in the washing water used for lubrication and cleaning during machining of machine tools, thereby reducing wastewater treatment costs and removing impurities. An object of the present invention is to provide a washing water cleaning device for machine tools that can prevent contamination of processed products due to accumulation. The invention for implementing this is provided on one side of the machine tool 10, the washing water used for processing using the machine tool 10 is introduced and stored, and the washing water purified by removing impurities contained in the washing water a septic tank 20 for discharging; a washing water circulation unit 30 that sucks the washing water stored in the septic tank 20 to the outside of the septic tank 20 and introduces it into the septic tank 20 to circulate and supply; a microbubble generating device 40 provided in the septic tank 20 to generate and supply microbubbles to the washing water flowing in through the washing water circulation unit 30 to induce the microbubbles and aggregated impurities to float quickly; a skimmer 60 for transferring impurities suspended in the upper portion of the washing water to an impurity collecting unit 70 provided on one side of the septic tank 20; and a washing water pressure feeding unit 80 for pumping the washing water from which the impurities are removed to be reused in the machining operation using the machine tool 10 .

The filtration device for removing metallic impurities generated during the anodizing process of metal of Patent Registration No. 10-1114887 relates to a filtration device for removing metallic impurities generated during the anodizing process of metal. A filtration device for treating metallic impurities, the filtration device comprising: a filtration tank in which a plurality of filtration spaces are formed by a plurality of partition walls having drainage holes having a difference in height so that the electrolyte moves sequentially; A filter cloth for adsorbing floating substances such as oil when the electrolyte moves sequentially through a plurality of filtration spaces through the drain hole of the partition wall, and a metal anode member installed in the filtration space to adsorb dissolved copper of the electrolyte; It is characterized in that it consists of a negative electrode member. The filtration device according to the present invention has a plurality of filtration spaces formed to sequentially transfer the electrolyte to efficiently remove dissolved copper, etc. from the electrolyte used for anodizing metal, and re-insert it into the electrolytic cell to block changes in the concentration of the electrolyte, etc. This prevents the shortening of the life of the electrolyte and reduces the maintenance cost of the electrolyte, as well as cleaning the anode and cathode members installed in the filtration device to remove dissolved copper simply using diluted nitric acid solution. .

The oil-water separator of Patent Registration No. 10-1234718 is connected to a dirty tank 500 for storing waste washing liquid, an oil suction device 200 for collecting oil floating on the top of the dirty tank, and the oil suction device to store the waste washing fluid. The separation main body 100 that separates fine chips and oil, and the pressure-feeding pipe 400 that is connected to the discharge pipe 250 of the oil suction machine 200 to re-inject the washing liquid in the separation main body to the T elbow inlet 700 And, it is mounted on the pressure feeding pipe to circulate the washing liquid inside the separation main body 100 and generate a negative pressure suction force at the T-elbow inlet to suck the waste washing liquid through the oil aspirator 200 and send it to the inside of the separation main body 100 It is an oil-water separator comprising a high-pressure fluid pump 300 and a clean tank 600 in which the washing liquid from which oil has been removed is recovered and stored. By installing the pipe 400, the negative pressure suction force generated in the lower vertical pipe 720 of the T-elbow inlet 700 connected to the pressure feeding pipe suctions the waste washing solution of the dirty tank 500 and sending it to the separation main body 100, It has excellent oil-water separation function, low manufacturing cost and maintenance cost, and has a remarkable effect of automatically supplying clean washing solution without a resident worker.

The chip filtering device for washing water capable of automatic backwashing of Patent Registration No. 10-1359340 includes a dirty tank 700, a clean tank 800, a fluid pump 600, the first and second three-way automatic opening/closing valves (500, 510), In the washing water chip filtering device capable of automatic backwashing comprising the first and second two-way automatic on/off valves (520, 530), the pressure sensor member (300) and the cylindrical housing body (100) having a built-in filter (200), The contaminated washing water stored in the dirty tank 700 is a first inlet pipe 710 , a first three-way automatic opening/closing valve 500 , a main pipe 940 , and a second three-way automatic opening and closing by driving the fluid pump 600 . It flows into the receiving body 100 through the valve 510 and the first main body pipe 900, and the metallic chips and sludge are filtered through the filter mounted inside the receiving body, and the filtered washing water is After being discharged through the inlet and outlet pipe 930 connected to the upper part of the receiving body, the T-type pipe 920 connected to the inlet and outlet pipe, and the first discharge pipe 720 connected to the T-type pipe, the clean tank ( 800), but when the pressure in the housing body rises due to clogging of the filter hole, the pressure sensor inside the pressure sensor member 300 detects it, and the controller compares it with a preset value Therefore, if it is higher than the set value, it is determined that the filter hole is clogged, and an electric signal is sent to the automatic opening/closing valves to operate, thereby performing a backwashing process. Compared to the conventional backwashing device, the device has a simple structure, so the failure rate is low, the manufacturing cost is low, and the clogging phenomenon of the filter filter does not occur, thereby reducing maintenance costs.

Patent Registration No. 10-0483253's method of reusing cutting oil and washing liquid using ozone injection and the invention of the device are obtained by diluting a liquid or powder detergent stock solution with a pH concentration of 11 to 13 with water to a range of 3-5% using ultrasonic or spray method. It relates to a water-soluble alkali-based cleaning process and device for cleaning contaminants such as microchips and metal processing fluids attached to products through a cleaning mechanism, and ozone is applied to a washing tank and/or oil-water separation tank containing a cleaning solution and oil in a contaminated state. An ozone sterilization process for sterilizing bacteria contained in the washing solution and oil by injection, and a particle removal process for removing fine metal chips within 20 microns by passing the washing solution and oil sterilized in the ozone sterilization process through a pre-filter; , An oil removal process in which the large particle washing solution and oil not removed in the particle removal process are combined with oil particles of about 10-20 microns in an oil-water separation tank filled with media and floated to the top to remove other oil, and the oil removal process In order to reuse a part of the washing solution purified by the membrane filter, the filtrate and the oil in the micellar form that have passed through the membrane filter are mixed, and the mixed solution of the filtrate and the oil is discharged to the membrane filter. a circulating process in which the feed is transferred to and the remainder is recirculated to the concentrate mixing process, but transferred to the cutting oil concentration tank after a certain period of time has elapsed; To provide a method and apparatus for recycling a washing solution using ozone injection comprising: As described above, the present invention provides an ozone injection process that prevents contamination of the washing tank due to the generation of microorganisms, generation of odors, and a decrease in the concentration of the cleaning agent. It is possible to solve the problem and secure a stable permeate flow by using an uncontaminated membrane filter. In addition, the above invention separates the used cutting oil from the cleaning solution in the membrane filter and circulates it, so that it can be reused after removing the residue of the cutting oil. In addition, the invention provides a control signal input process for measuring the pH of the cleaning solution discharged from the membrane filter, converting the measured pH value into an electrical signal and inputting it as a control signal of the cleaning agent input control valve, so that the cleaning agent input is efficient , and the pH concentration of the washing tank can be constantly adjusted.

The invention of the waste slurry regeneration apparatus and regeneration method of Patent Registration No. 10-1020151 is a centrifugal separator that separates abrasives, cutting oil, and the rest (abrasive crushed material and cutting powder) by centrifuging the waste slurry step by step, and passing through the centrifugal separator It consists of an abrasive recycling device that regenerates the separated abrasive for ceramics sintering, and a water/dispersible polyalkylene glycol ester recycling device that separates and recovers aqueous/dispersible polyalkylene glycol esters from the cutting oil separated by the centrifugal separator. To provide a waste slurry regeneration device and a regeneration method that can improve the regeneration efficiency to 80% or more and minimize waste generation.

Patent Registration No. 10-1417277 relates to a wastewater coagulation treatment device, which allows foreign substances contained in wastewater to be coagulated through a coagulant and discharged automatically, and wastewater can be continuously input for purification treatment, as well as at the initial stage of stirring in the primary mixing tank. It is possible to improve the efficiency of wastewater purification by removing odors from wastewater and treating even the fine sludge contained in the tertiary treated water by remarkably lowering the odor and pollution load on the raw wastewater through secondary and tertiary treatment. , It relates to a wastewater coagulation treatment device in which each treatment tank is continuously formed in one device to realize a compact device. Conventional wastewater flocculation treatment equipment has limitations in treating foreign substances by agglomeration and sludge because the stirrer and sedimentation tank are not subdivided. In addition, there was a problem that a large number of transfer pipes and pumps were required, and a large amount of installation space was occupied.

[Technical task to be accomplished by the invention]

The technical tasks to be achieved by the controlled metal processing process water reuse apparatus of the present invention are as follows.

First, fine metal chips and fine particles such as oxide scale and trace emulsified oil contained in the metal processing process water are electrically neutral in water, so ionic bonding does not occur even if a coagulant is injected, so agglomeration does not occur well. At this time, when a coagulant is injected after ionization while preventing polarization with the rotating electrode 2-1 controlled to an appropriate current density, the opposite ions are combined to enable aggregation.

Second, fine particles ionized at an appropriate current density in the rotating electrode ionizer (2) are effective for ionic bonding even with a smaller amount of coagulant than the amount of coagulant injected during treatment of relatively non-ionized neutral particles in the rapid stirring coagulator (3). made available for use.

Third, in the existing hydrocyclone sedimentation process, the inlet pressure of the fluid is 2 to 3 atm, and the particles in the fluid are transferred to the circumferential surface by centrifugal force by the fluid swirl flow generated by introducing the fluid at high speed (200 to 500 cm/sec) with a pressurized pump, etc. It collides and separates sedimentation into the lower cone part, and separation is possible only when the specific gravity of the particles is large and strong, but the centrifugal separation hydrocyclone (6) of the present invention has a fluid inflow rate of 10 to 15 cm/sec, an inlet pressure of 1 to 1.5 atm, It is a device that separates particles with a fluid specific gravity close to 1 by centripetal force of the tea-cup effect. 6-7) to maximize the separation efficiency of light particles entering at low speed.

Fourth, only trace residual turbidity not removed in the centrifugal hydrocyclone was filtered in a microfilter to reduce clogging of the filter and extend the lifespan.

[Constitution of the invention]

The controlled metal processing process water reuse apparatus of the present invention is composed of four parts: a rotating electrode ionizer, a rapid-stir condenser, a slow-stir coagulator, a centrifugal hydrocyclone, and a micro filter, and the configuration and functions are described in detail using reference numerals If you do:

1) is located on one side of the upper portion of the rotating electrode ionizer 2, and is an inlet for metal processing process water through which fine metal chips and fine particles such as oxide scale and emulsified oil are introduced.

2) removes electrically neutral fine metal chips and fine particles such as oxidized scale and emulsified oil introduced into the metal processing process water inlet (1) with the rotating electrode motor (2-3) and the rotating electrode gear head (2- 4) and a rotating electrode (2-1) controlled to an appropriate current density and a rotating electrode support (2-2), it is a rotating electrode ionizer that ionizes while preventing polarization.

2-1) is located in the inner center of the rotating electrode ionizer 2, connected to the rotating electrode motor and rotating electrode gearhead, and electrically neutral fine metal chips and fine particles such as oxide scale and emulsified oil. It is a mesh type rotating electrode that ionizes while preventing polarization by controlling the current density to an appropriate level.

2-2) is located at the upper and lower parts of the rotating electrode 2-1, and is a rotating electrode support that supports the electrode while preventing a short circuit by fixing the electrode and the electrode at a predetermined interval.

2-3) is a rotating electrode motor located at the outer upper end of the rotating electrode ionizer 2 and connected to the rotating electrode 2-1 to provide a rotation speed of the rotating electrode.

2-4) is a rotating electrode gear head connected to the lower part of the rotating electrode motor 2-3 and connected to the rotating electrode rotation shaft to control the rotation speed of the rotating electrode.

2-5) is a rotating electrode rotating shaft that is connected to the rotating electrode motor 2-3, the rotating electrode gear head 2-4, and the rotating electrode 2-1 inside the rotating electrode ionizer to form a central axis of rotation.

2-6) is a rotating electrode motor (2-3) and a rotating electrode gear head ( 2-4) and the rotating electrode ionizer outlet that ionizes and flows out with the rotating electrode 2-1 controlled to an appropriate current density.

2-7) is a DC power supply that is located outside the rotating electrode ionizer 2 and is connected to the rotating electrode 2-1 with an electric wire to supply an appropriate voltage and current.

3) is located connected to the outlet (2-6) of the rotary electrode ionizer, and a rapid stirring motor (3) to quickly contact the fine metal chips ionized in the rotating electrode ionizer and fine particles such as oxide scale and emulsified oil with the coagulant. It is a rapid stirring condenser composed of -1), a rapid stirring gear head (3-2), a rapid stirring rotating shaft and blades (3-3), a metering pump (3-4), and a chemical tank (3-5).

4) is located in connection with the rapid agitation condenser 3 and includes a slow stirring motor 4-1 and a slow stirring gear head 4-2 for slowly stirring the flocculation flocs formed in the rapid agitation flocculation unit into condensed flocs. ), a slow-stirring rotating shaft, a blade (4-3), and a slow-stirring condenser consisting of an outlet (4-4) for a slow-stirring condenser.

5) is located on the outer lower surface of the slow stirring condenser 4 and the centrifugal separation hydrocyclone 6 and is a condensation floe thickening tank in which the flocculation discharged through the hydrocyclone settling part outlet 6-10 is stored.

6) is located connected to one side of the slow stirring condenser (4), and the number of condensation floes introduced into the hydrocyclone tangential inlet (6-1) is measured with the hydrocyclone floating separator plate (6-5) and the hydrocyclone screw pipe shaft ( 6-6) and the hydrocyclone inclined screw (6-7) and discharged to the hydrocyclone sedimentation outlet (6-10), and the effluent from which the condensation floe is removed is discharged to the hydrocyclone outlet (6-3) separate hydrocyclones.
Centrifugal separation hydrocyclone (6) of the present invention is a device that separates particles having a fluid inflow rate of 10 to 15 cm/sec, an inflow pressure of 1 to 1.5 atm, and a fluid specific gravity close to 1 by centripetal force of the tea-cup effect. It is composed of a screw tube shaft (6-6), a hydrocyclone screw tube shaft (6-6) and a hydrocyclone inclined screw (6-7) inclined at 45 degrees to maximize the separation efficiency of light particles flowing in at low speed.

6-1) is a hydrocyclone tangential inlet located at the rear end of the slowly stirring coagulator outlet 4-4, formed tangentially to the outer circumferential surface of the centrifugal separation hydrocyclone, and through which the condensed flux water formed in the slow stirring coagulator flows in.

6-2) is formed in a tangential direction at an angle of 90 degrees on the outer circumferential surface of the centrifugal separation hydrocyclone 6 (based on 0 degrees of the hydrocyclone outlet), and is located at a height between the inclined screw and the floating separator plate to prevent condensation flocs It is a hydrocyclone tangential circulation inlet configured to circulate 5 to 10% of the hydrocyclone effluent in order to increase the sedimentation efficiency of the hydrocyclone.

6-3) is located in the lower part of the centrifugal separation hydrocyclone 6 [based on 0 degree of the hydrocyclone outlet] and is the hydrocyclone outlet through which the effluent from which the condensation flocs are removed.

6-4) is a circulation pump connected to the hydrocyclone tangential circulation inlet 6-2 and the hydrocyclone tangential circulation outlet 6-8 through a pipe to circulate and pump water discharged from the hydrocyclone outlet.

6-5) is located below the hydrocyclone tangential inlet 6-1, and is a hydrocyclone floating separation plate from which floating condensed flocs are flotationally separated.

6-6) is connected to the hydrocyclone inclined screw (6-7) in the inner center of the centrifugal separation hydrocyclone (6) and is vertically fixed, and is a tea-cup effect of the hydrocyclone inclined screw (6-7). It is a hydrocyclone tube shaft that transports the settling coagulation flocs collected on the central hydrocyclone screw tube shaft (6-6) to the hydrocyclone settling section (6-9).

6-7) is located connected to the outer circumferential surface of the hydrocyclone screw tube shaft, and is formed with a constant conical inclination toward the center along the inner circumferential surface of the hydrocyclone. It is an inclined screw.

6-8) is formed in a tangential direction at a point of 270 degrees on the outer peripheral surface of the centrifugal separation hydrocyclone 6 (based on 0 degrees of the hydrocyclone outlet), and the hydrocyclone tangential circulation inlet 6-2 and the circulation pump and piping It is a hydrocyclone tangential circulation outlet configured to circulate 5 to 10% of the hydrocyclone effluent in order to increase the sedimentation efficiency of the centrifugal hydrocyclone.

6-9) is located connected to the lower end of the centrifugal hydrocyclone (6) with an external pipe, and the hydrocyclone screw pipe shaft ( After being transported to 6-6), it is the hydrocyclone sedimentation part that is transported and collected through the lower external pipe.

6-10) is a hydrocyclone sedimentation part outlet for discharging the settling flocculation collected in the hydrocyclone sedimentation part 6-9 to the flocculation flocculation tank 5.

7) flows the residual turbidity in the effluent from the hydrocyclone outlet (6-3) into the microfilter inlet (7-1), and then filters it through the microfilter filter (7-2) to the microfilter outlet (7) -3) is a microfilter (7) formed to flow out.

7-1) is a microfilter inlet formed on the outer circumferential surface of a plurality of hollow cylindrical microfilter filters, through which centrifugal hydrocyclone effluent flows into the outer circumferential surface of a cylindrical microfilter with a hole in the center.

7-2) is a microfilter filter composed of a plurality of hollow cylindrical microfilter filters.

7-3) is a microfilter outlet formed hollow in the center of the plurality of cylindrical microfilter filters to filter out residual turbidity in the hydrocyclone effluent.

8) is located on one side of the outside of the microfilter 7, and is an outlet for metal processing process water through which filtered water from which residual turbidity has been removed from the microfilter is discharged.

The controlled metal processing process water reuse device of the present invention ionizes, settles, and flotations electrically stable neutral fine particles in the metal processing process water, filters and reuses the residual turbidity in the effluent, a rotary electrode ionizer, a rapid agitation condenser and slow speed It consists of four parts: agitation condenser, centrifugal hydrocyclone, and microfilter.

The electrically neutral fine metal chips and fine particles such as oxidized scale and emulsified oil introduced into the metal processing process water inlet (1) are mixed with a rotating electrode motor (2-3), a rotating electrode gear head (2-4) and a rotating electrode ionizer (2) that ionizes while preventing polarization with a rotating electrode (2-1) controlled to an appropriate current density;

A rapid stirring motor (3) which is connected to one side of the rotating electrode ionizer (2) and rapidly agitates the fine metal chips ionized in the rotating electrode ionizer and fine particles such as oxide scale and emulsified oil with the coagulant -1), rapid stirring gearhead (3-2), rapid stirring rotating shaft and blades (3-3), a rapid stirring condenser (3) consisting of a metering pump (3-4) and a chemical tank (3-5); ;

A slow agitation motor (4) which is connected to one side of the rapid stir coagulator (3) and transports the coagulated floes formed in the quick stir coagulator (4-1) to the slow stir coagulator (4-1) and slowly agitates to form large condensed floes -1), a slow stirring gear head (4-2), a slow stirring rotating shaft and a blade (4-3), and a slow stirring coagulator (4) consisting of a slow stirring coagulator outlet (4-4);

It is located connected to one side of the slow agitation coagulator (4), and the number of condensed flux introduced into the hydrocyclone inlet (6-1) is transferred to the hydrocyclone floating separator plate (6-5) and the hydrocyclone screw pipe shaft (6-6) and a centrifugal separation hydrocyclone ( 6) and;

It is located connected to one side of the centrifugal separation hydrocyclone (6) and filters the residual turbidity introduced into the microfilter inlet (7-1) in the microfilter filter (7-2), and the microfilter outlet (7-3) It is composed of a microfilter (7) and a metal processing process water outlet (8) flowing out into the

The fine metal chips and neutral fine particles such as oxide scale and emulsified oil are ionized at an appropriate current density in the rotating electrode ionizer (2), and the coagulant is injected in the rapid stirring agglomeration unit (3) to rapidly electrically and electrically with the ionized fine particles. After neutralization and ionic bonding, a coagulation floe is formed in the slow stirring condenser (4), sedimentation and floating separation are discharged in the centrifugal hydrocyclone (6), and the residual turbidity in the hydrocyclone effluent is measured in the microfilter filter (7-2). It is a controlled-type metalworking process water reuse device that filters and flows out to the metal working process water outlet 8 for reuse.

The fine metal chips and fine particles such as oxide scale and trace emulsified oil contained in the metal processing process water were electrically neutral in water, so ionic bonding did not occur even after the coagulant was injected, so agglomeration did not occur well. At this time, by applying appropriate electricity to ionize the neutral fine particles and then injecting a coagulant, the opposite ions combine to enable aggregation. The invention effect of the controlled metal processing process water reuse apparatus of the present invention is as follows.

First, the rotating electrode ionizer of the controlled metal processing process water reuse apparatus of the present invention converts electrically neutral fine metal chips and neutral fine particles such as oxide scale and emulsified oil to a rotating electrode (2-1) controlled with an appropriate current density. ) to prevent polarization and enable ionization.

Second, the fine particles ionized with an appropriate current density in the rotating electrode ionizer (2) are effective for ionic bonding even with a small amount of coagulant than the amount of coagulant injected during treatment of relatively non-ionized neutral particles in the rapid stirring coagulator (3). made available for use.

Third, in the existing hydrocyclone sedimentation process, the inlet pressure of the fluid is 2 to 3 atm, and the particles in the fluid are transferred to the circumferential surface by centrifugal force by the swirling flow of the fluid generated by introducing it at high speed (200 to 500 cm/sec) with a pressurized pump, etc. It collides and separates by sedimentation into the lower cone, and separation was possible only when the specific gravity of the particles was large and firm. Centrifugal separation hydrocyclone (6) of the present invention is a device that separates particles having a fluid inflow rate of 10 to 15 cm/sec, an inflow pressure of 1 to 1.5 atm, and a fluid specific gravity close to 1 by centripetal force of the tea-cup effect. It is composed of a screw tube shaft (6-6), a hydrocyclone screw tube shaft (6-6) and a hydrocyclone inclined screw (6-7) inclined at 45 degrees to maximize the separation efficiency of light particles flowing in at low speed. Tea-cup effect (effect of tea-cup): When the light tea leaves in the teacup are stirred slowly with a spoon, they gather in the lower center and settle. Light particles in the fluid rotating at low speed are collected in the lower center and separated by centripetal force. am.

1 is a top view of a controlled metal processing process water reuse device.
2 is a side view of a controlled metalworking process water reuse apparatus.
3 is a cross-sectional view of the rotating electrode ionizer.
4 is a cross-sectional view of the rapid-stir coagulator and the slow-stir coagulator.
Figure 5 is a top view of the rapid stir coagulator and the slow stir coagulator.
6 is a cross-sectional view of a centrifugal hydrocyclone.
7 is a top view of a centrifugal hydrocyclone.
8 is a cross-sectional view of the microfilter.
9 is a top view of the microfilter.
<Explanation of symbols in the drawing>
1. Metalworking process water inlet
2. Rotating electrode ionizer
2-1. rotating electrode
2-2. Rotating electrode support
2-3. rotating electrode motor
2-4. rotating electrode gear head
2-5. Rotating Electrode Rotation Shaft
2-6. Rotating electrode ionizer outlet
2-7. DC power supply
3. Rapid agitation condenser
3-1. rapid agitation motor
3-2. rapid agitation gearhead
3-3. Rapid agitation shaft and blades
3-4. metering pump
3-5. pharmacy
4. Slow stirring condenser
4-1. Slow stirring motor
4-2. Slow stirring gear head
4-3. Slow stirring shaft and blades
4-4. Slow stirring condenser outlet
5. Condensation Floc Concentrator
6. Centrifugal Hydrocyclones
6-1. Hydrocyclone tangential inlet
6-2. Hydrocyclone tangential circulation inlet
6-3. hydrocyclone outlet
6-4. circulation pump
6-5. hydrocyclone floating separator
6-6. hydrocyclone screw tube
6-7. hydrocyclone inclined screw
6-8. Hydrocyclone tangential circulation outlet
6-9. hydrocyclone settling
6-10. Hydrocyclone sedimentation outlet
7. Microfilter
7-1. Microfilter inlet
7-2. microstrain filter
7-2. microfilter outlet
8. Metalworking process water outlet

.

Claims (1)

The electrically neutral fine metal chips and fine particles such as oxidized scale and emulsified oil introduced into the metal processing process water inlet (1) are mixed with a rotating electrode motor (2-3), a rotating electrode gear head (2-4) and a rotating electrode ionizer (2) for ionizing while preventing polarization with a rotating electrode (2-1) controlled to an appropriate current density;
A rapid stirring motor (3) which is connected to one side of the rotating electrode ionizer (2) and rapidly agitates the fine metal chips ionized in the rotating electrode ionizer and fine particles such as oxide scale and emulsified oil with the coagulant -1), rapid stirring gearhead (3-2), rapid stirring rotating shaft and blades (3-3), a rapid stirring condenser (3) consisting of a metering pump (3-4) and a chemical tank (3-5); ;
A slow agitation motor (4-1) which is connected to one side of the rapid stir coagulator (3) and slowly stirs the coagulated flocs formed in the rapid stir coagulator (4) into the slow stir coagulator (4) to form large coagulated flocs. ), a slow stirring gear head (4-2), a slow stirring rotating shaft and blades (4-3), a slow stirring coagulator (4) consisting of a slow stirring condenser outlet (4-4) and;
It is located connected to one side of the slow stirring condenser (4), and the number of condensed flux introduced into the hydrocyclone inlet (6-1) is transferred to the hydrocyclone floating separator plate (6-5) and the hydrocyclone screw pipe shaft (6-6) and a centrifugal separation hydrocyclone ( 6) and;
It is located connected to one side of the centrifugal separation hydrocyclone (6) and filters the residual turbidity introduced into the microfilter inlet (7-1) in the microfilter filter (7-2), and the microfilter outlet (7-3) It is composed of a micro filter (7) that flows out into
The fine metal chips and neutral fine particles such as oxide scale and emulsified oil are ionized at an appropriate current density in the rotating electrode ionizer (2), and the coagulant is injected in the rapid stirring agglomeration unit (3) to rapidly electrically and electrically with the ionized fine particles. After neutralization and ionic bonding, the condensation flocs formed in the slow-stirring condenser (4) are sedimented and floated in the centrifugal separation hydrocyclone (6), and the residual turbidity in the hydrocyclone effluent is filtered by a microfilter filter (7-2) and metal Control-type metalworking process water reuse device that flows out and reuses the processing process water outlet (8)

Images