KR20110113795A - Treatment system for forging mold release agent using separation membrane - Google Patents

Abstract

The present invention relates to a forging release agent wastewater treatment apparatus, and is configured to effectively separate and discharge the forging release agent wastewater into the release agent component and water by using a membrane, thereby reducing the water content in the waste while providing excellent separation performance and treatment efficiency. In addition, the present invention relates to a forging release agent wastewater treatment apparatus that can reduce the amount of waste generated and the treatment cost, and reduce the environmental cost of the process. The present invention is to treat the release agent wastewater generated in the forging step, the storage tank in which the release agent wastewater is collected and stored; A first bubble generating device generating microbubbles in the release agent wastewater of the storage tank so that aeration for preventing oil oxidation of the release agent wastewater is achieved; A plurality of tubular separators for separating and removing the releasing agent component from the releasing agent waste water transferred from the storage tank, and a separation membrane module for discharging the filtration water separated from the releasing agent component from the outside of the separation membrane to the hollow inside the separation membrane through the membrane pores; A second bubble generating device generating micro bubbles in the release agent wastewater of the separator module to remove contaminants adhered to the separator surface; It includes; treatment water storage tank for storing the filtered water discharged from the membrane module.

Description

Treatment system for forging mold release agent using separation membrane

The present invention relates to a forging release agent wastewater treatment apparatus, and more particularly, to a forging release agent wastewater treatment apparatus capable of effectively separating and removing the release agent component from the release agent wastewater generated in the forging process.

A forging process of automobile parts is a kind of plastic working, and is a process of forming a predetermined product shape by applying compression (impact) to a metal, and is largely divided into free forging and die forging.

At present, mold forging technology is mainly used to produce a large number of complex shaped products.

In the forging process, a releasing agent is used for smooth separation of the molded product, and the releasing agent injected into the mold is discharged in a mixed state with the cooling water of the forging process, and the release agent waste water is discharged in a mixed state of the releasing agent and the cooling water.

Release agent wastewater generated in the forging process is a wastewater containing a release agent such as graphite and an additive of an oil component, and the treated water is transferred to a wastewater treatment plant after the release agent and oil component are removed from an oil / water separation tank.

At this time, if the release agent and oil components contained in the forged release agent wastewater without proper treatment may exceed the discharge allowance bar, it may violate the regulation of wastewater treatment plant effluent.

Therefore, it is necessary to stably treat the releasing agent and oil components from the releasing agent wastewater through proper pretreatment and to stably treat the wastewater treatment plant.

In addition, since the release agent and oil-based waste separated from the water are classified as designated wastes and consigned, it is necessary to minimize the water content of the release agent and the oil-based waste to reduce the overall generation amount and the treatment cost of the waste.

However, in the case of using the conventional oil and water separation tank, since the separation and treatment efficiency is very low, there is a problem in that the water content in the waste is excessive, the waste generation amount and the treatment cost are large, and the entrusted treatment cost of the waste is very high, thereby increasing the environmental cost of the process.

In addition, since the separation efficiency of the oil-water separation tank for the forging release agent wastewater is low, a large amount of water cannot be separated and reused and disposed of as waste, thereby increasing the water consumption of the production process.

In addition, high efficiency forging release agent wastewater treatment technology is not applied, the work environment is greatly reduced due to decay and odor caused by long-term stay, etc. There is a problem such as causing frequent complaints due to odor emissions.

Therefore, the present invention has been invented to solve the above problems, and as a treatment device for effectively separating and removing the release agent component, that is, the release agent and the oil component from the release agent wastewater generated in the forging process, excellent separation performance and treatment efficiency The purpose is to provide a forging release agent wastewater treatment apparatus that can reduce the water content in the waste, thereby reducing the amount of waste generated and treatment costs, and reduce the environmental cost of the process.

In addition, an object of the present invention is to provide a forging release agent waste water treatment apparatus that can be reduced by the water input of the process by being configured to re-introduce the treated water separated from the release agent particles by the separation membrane in the forging process.

In addition, the present invention can solve the problems of decay and odor generation of the conventional release agent wastewater by maximizing the separation of the release agent particles and water, thereby improving the working environment as well as solving complaints due to odor emissions. The purpose is to provide a forging release agent wastewater treatment apparatus that can be.

In order to achieve the above object, the present invention is to treat the release agent wastewater generated in the forging process, the storage tank in which the release agent wastewater is collected and stored; A first bubble generating device generating microbubbles in the release agent wastewater of the storage tank so that aeration for preventing oil oxidation of the release agent wastewater is achieved; A plurality of tubular separators for separating and removing the releasing agent component from the releasing agent waste water transferred from the storage tank, and a separation membrane module for discharging the filtration water separated from the releasing agent component from the outside of the separation membrane to the hollow inside the separation membrane through the membrane pores; A second bubble generating device generating micro bubbles in the release agent wastewater of the separator module to remove contaminants adhered to the separator surface; It provides a forged release agent wastewater treatment apparatus using a separation membrane comprising a; treated water storage tank for storing the filtered water discharged from the membrane module.

Here, the membrane module module, the membrane module housing is formed with an inlet portion connected to the waste water supply pipe for receiving the release agent wastewater from the storage tank, and the filtered water discharge port is connected to the filtered water discharge pipe for discharging the filtered water to the treatment water storage tank; And a plurality of tubular separators installed in the membrane module housing so as to communicate with the filtrate outlet so that the filtrate separated from the release agent component is discharged through the filtrate outlet from the inner hollow.

In addition, the filtered water discharge pipe is installed in the filtered water discharge pump for transferring the filtered water to the treated water storage tank, the opening and closing valve for opening and closing the flow path of the filtered water discharge pipe is installed, the back washing pipe is connected to the filtered water discharge pipe from the treated water storage tank, The back washing pipe is characterized in that the back washing pump for sucking and filtering the filtered water of the treated water storage tank and pumped to the filtered water discharge pipe, and the on-off valve for opening and closing the flow path of the back washing pipe.

In addition, between the storage tank and the membrane module is characterized in that the circulating water discharge pipe for recovering the release agent wastewater not filtered by the membrane from the membrane module to the storage tank.

In addition, the first bubble generating apparatus, and a first blower for supplying air for generating fine bubbles in the release agent waste water of the storage tank; And an air supply pipe connected to the lower portion of the storage tank at the outlet side of the first blower so that the air supplied by the first blower can be injected into the release agent wastewater at the lower portion of the storage tank.

In addition, the second bubble generating apparatus, and a second blower for supplying air for generating fine bubbles in the release agent wastewater of the membrane module; And an air supply pipe connected to supply air supplied by the second blower to the release agent wastewater of the membrane module.

In addition, the air supply pipe is connected to the inlet portion of the membrane module into which the release agent wastewater transferred from the storage tank is input, so that the air supplied by the second blower is supplied to the separator module in a state mixed with the release agent wastewater at the inlet portion. It is done.

The apparatus may further include an exhaust gas treatment device connected to an upper portion of the treatment water storage tank and an exhaust pipe to purify and discharge the exhaust gas discharged from the treatment water storage tank.

In addition, the exhaust gas treatment device is connected through the upper portion of the storage tank and the exhaust pipe is characterized in that the exhaust gas discharged from the storage tank to be purified.

In addition, the exhaust gas treatment device is characterized in that it is configured by filling the activated carbon that can adsorb particles in the exhaust gas.

Accordingly, according to the forging release agent wastewater treatment apparatus of the present invention, as a treatment device for separating and removing the release agent component from the release agent wastewater generated in the forging process, it is possible to effectively separate and discharge the forging release agent wastewater into the release agent component and water using a separator. By being configured to be able to reduce the water content in the waste while providing excellent separation performance and treatment efficiency, thereby reducing the amount of waste generated and disposal costs, there is an advantage to reduce the environmental cost of the process.

In addition, since the treated water separated from the release agent particles by the separator can be re-injected into the forging process, there is an advantage that can reduce the amount of water used in the process.

In addition, in the present invention, by maximizing the separation of the release agent particles and water, it is possible to prevent the decay and odor generation of the releasing agent wastewater, which is a conventional problem, thereby improving the working environment as well as solving complaints due to odor emissions. There is an advantage to this.

1 is a view showing the overall configuration of the forging release agent wastewater treatment apparatus according to an embodiment of the present invention.
Figure 2 is a view showing the cross-sectional structure of the capillary fabric support membrane in the forging release agent wastewater treatment apparatus according to the present invention.
3 is a view showing a capillary fabric support in the separator of FIG.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a forging release agent wastewater treatment apparatus, and more particularly, to a treatment apparatus for separating and removing a release agent component such as a release agent and an oil component from a release agent wastewater generated in a forging process, and particularly, using a separation membrane module employing a separation membrane. The present invention relates to a forging release agent wastewater treatment apparatus configured to effectively separate and discharge the release agent wastewater into a release agent component and water (filtration water and treated water).

In the forged release agent wastewater treatment apparatus of the present invention can provide excellent separation performance and treatment efficiency to reduce the moisture content in the waste, thereby reducing the waste generation and treatment costs, it is possible to reduce the environmental cost of the process.

In addition, the present invention is configured to re-enter the treated water separated from the release agent particles by the separation membrane in the forging process, there is an advantage that can reduce the amount of water used in the process.

In addition, in the present invention, by maximizing the separation of the release agent particles and water, it is possible to prevent the decay and odor generation of the releasing agent wastewater, which is a conventional problem, thereby improving the working environment as well as solving complaints due to odor emissions. There is an advantage to this.

Hereinafter, the configuration of the forging release agent wastewater treatment apparatus according to the present invention with reference to the accompanying drawings will be described in detail.

1 is a view showing the overall configuration of the forging release agent wastewater treatment apparatus according to an embodiment of the present invention, Figure 2 is a view showing a cross-sectional structure of the capillary fabric support membrane in the forging release agent wastewater treatment apparatus according to the present invention, 3 is a view showing a capillary fabric support in the separator of FIG.

In the forging release agent wastewater treatment apparatus 100 of the present invention, the release agent wastewater is separated into a release agent component and water by using the separator 132, and the water (filtered water and treated water) from which the release agent component is separated is stored in the treated water storage tank 150. After the supply to the forging process to be reused, the releasing agent wastewater that is not filtered by the separation membrane is recycled to the separation tank is recovered to the storage tank 110 stored in the release agent wastewater is applied.

In this recirculation method, only the filtered water passing through the separation membrane 132 is finally discharged by re-feeding the release agent wastewater (containing the release agent and the oil component) which is not filtered by the separation membrane 132 back to the separation membrane to provide excellent separation performance. You can do it.

Looking at the configuration, the forging release agent wastewater treatment apparatus 100 of the present invention, the storage tank 110 in which the release agent wastewater generated in the forging process is collected and stored, and the first for generating micro-bubbles in the release agent wastewater of the storage tank (110) The bubble generator 120 and a plurality of tubular separators 132 for separating and removing the release agent component from the release agent wastewater transferred from the storage tank 110 are installed, and the release agent component is hollowed out from the outside of the separator through the membrane pores. Separation membrane module 130 for passing through the filtered water to be separated, the second bubble generating device 140 for generating micro-bubbles in the release agent waste water of the membrane module 130, and discharged from the membrane module 130 It is configured to include a treated water storage tank 150 to store the filtered water.

In a preferred embodiment, the forging release agent wastewater treatment device 100 of the above configuration may further include an exhaust gas treatment device 160 connected to the upper portion of the treatment water storage tank 150 and through the exhaust pipe 161. The exhaust gas treatment device 160 may be further connected to the upper portion of the storage tank 110 through a separate exhaust pipe 162.

First, the storage tank 110 is a storage tank in the form of a sealed inner space, the waste water injection pipe 111 is connected to the upper, the waste water injection pipe 111 is pumped by pumping the release agent waste water discharged from the process Bar from the waste water transfer pump 112, the releasing agent waste water that is pumped by the waste water transfer pump 112 is transferred to the storage tank 110 through the waste water injection pipe 111 is temporarily stored.

In addition, the lower portion of the storage tank 110 is connected to the wastewater supply pipe 113 for supplying the release agent wastewater to the membrane module 130, the wastewater supply pipe 113 for suctioning and releasing the release agent wastewater of the storage tank 110 The wastewater supply pump 114 and the opening / closing valve 115 for opening and closing the flow path of the wastewater supply pipe 113 are provided.

The waste water supply pipe 113 is finally connected to the inlet 134 installed at the lower inlet side of the membrane module 130.

In addition, the exhaust pipe 162 connected to the upper portion of the storage tank 110 is connected to the exhaust gas treatment device 160 as described above, and the circulation water discharge pipe 137 is connected to the upper portion of the storage tank 110 separately.

The circulating water discharge pipe 137 is a pipe for recovering the release agent wastewater which is not filtered by the separator 132 in the separator module 130, and is connected from the circulating water outlet 135b of the separator module 130.

Accordingly, the release agent wastewater recovered to the storage tank 110 through the circulation water outlet 135b and the circulation water discharge pipe 137 is supplied to the separator module 130 together with the new release agent wastewater to filter the separation agent component. It goes through again.

In addition, the first bubble generator 120 may include a first blower 121 for supplying air for generating micro-bubbles in the release agent wastewater of the storage tank 110, the first blower 121 of The air supply pipe 122 connected to the outlet side is connected to the lower portion of the storage tank (110).

Accordingly, when the first blower 121 is driven, air supplied through the air supply pipe 122 is injected into the lower portion of the storage tank 110, and finally, air is injected into the release agent wastewater in the storage tank 110 to generate fine bubbles. .

At this time, it is also possible to install a diffuser for injecting the air supplied through the air supply pipe 122 into the release agent waste water in the lower portion of the storage tank 110.

As described above, the first bubble generator 120 injects air into the release agent wastewater in the storage tank 110 so that microbubbles are generated in the release agent wastewater, thereby generating microbubbles to prevent oil oxidation of the release agent wastewater. The first aeration will occur.

The first aeration treated release agent wastewater is supplied to the inlet 134 of the membrane module 130 by the wastewater supply pipe 113 and the wastewater supply pump 114, the membrane module 130, the inner space is sealed A membrane module housing 131 provided in a tank form and having an inlet 134, a filtered water outlet 135a, and a circulating water outlet 135b, and an inner hollow inside the membrane module housing 131 may be filtered water outlet 135a. And a plurality of separation membranes 132 which are installed to communicate with each other and pass through the pores and discharge the filtered water separated from the release agent component through the filtered water outlet 135a from the inner hollow.

An inlet 134 is provided at the lower portion of the membrane module housing 131 to receive release agent wastewater from the storage tank 110, and a wastewater supply pipe 113 is connected to the inlet 134 in the storage tank 110. The release agent wastewater supplied through the wastewater supply pipe 113 may be introduced into the membrane module housing 131.

In addition, a second bubble generator 140 may be connected to the inlet 134, and the second bubble generator 140 supplies air for generating microbubbles in the release agent wastewater of the membrane module housing 131. It may be configured to include a second blower 141, the air supply pipe 142 connected to the outlet side of the second blower 141 is connected to the inlet 134.

When the second blower 141 is driven, the air supplied through the air supply pipe 142 is injected into the inlet 134, and the air in the inlet 134 is mixed with the release agent wastewater in the membrane module housing. As it is injected into the 131, eventually the release agent wastewater in the membrane module housing 131 is caused by the injection of air micro-bubbles.

As such, when air is supplied to the membrane module 130 together with the release agent wastewater subjected to the first aeration treatment in the storage tank 110 to generate micro bubbles, contaminants adhered to the surface of the membrane 132 may be separated by the micro bubbles. In addition, the membrane pores may be prevented from being blocked by contaminants so that membrane filtration performance of the membrane may be continuously maintained.

The contaminants separated by the microbubbles are discharged through the circulation water outlet 135b and the circulation water discharge pipe 137.

In FIG. 1, reference numerals 135c and 135d denote drain ports and drain valves respectively installed at the inlet port 134.

The separation membrane 132 is installed in a plurality of integrally combined configuration in the membrane module housing 131, wherein the plurality of separation membrane 132 is installed to be arranged side by side along the longitudinal direction of the membrane module housing 131, One end portion is provided with a fixing member 133a fixed to the inner surface of the membrane module housing 131.

The fixing member 133a serves to fix and support one end of each separation membrane 132 in the membrane module housing 131.

In addition, the other end of each membrane 132 in the membrane module housing 131 is fixedly supported on the inner surface of the membrane module housing by the fixing member 133b in an open state, and the fixing members 133b are each membrane 132. Membrane module housing is filled with a release agent waste water filling the outlet side portion of each separation membrane, since the other end portion of each of the separation membrane is an outlet side through which the filtered hollow fluid is discharged. It serves to separate from the inner region 135f.

In the membrane module housing 131, a region that is completely separated from the region 135f filled with release agent wastewater by the fixing member 133b, that is, an outlet region communicating with the internal hollow of the separator 132 and discharged therefrom 135e) has a structure in communication with the filtered water outlet 135a of the membrane module housing 131.

Therefore, the filtered water separated from the release agent component through the membrane pores of the separation membrane 132 passes through the outlet region 135e in the hollow inside the separation membrane 132 and then is discharged through the filtered water outlet 135a.

In the present invention, as the separator 132, a fluororesin hollow fiber membrane may be used, and as an example of the fluororesin hollow fiber membrane, a PVDF separator may be used.

At this time, the PVDF material itself is very hydrophobic (hydrophobic) it is easy to cause membrane contamination by the material to be treated, there is a disadvantage that it is difficult to increase the water flow due to the formation of pores, preferably modified hydrophilized PVDF separator Use is preferred.

The hydrophilized PVDF separator is a separator in which a hydrophilic monomer is polymerized in PVDF to increase hydrophilicity and increase water permeability, strength and fouling resistance, and a manufacturing process thereof is disclosed in Patent Application No. 2007-89388.

In addition, as the separator 132, as shown in FIG. 2, it is possible to use a capillary fabric support membrane having increased strength using a capillary fabric support.

Forged release agent wastewater is an oil-based wastewater that is different from general wastewater and wastewater, and because of its high viscosity, fouling can easily occur, so excessive aeration is required during operation.

Accordingly, since single yarn may occur due to the strength of the membrane, in the present invention, it is preferable to use a separator having a hollow fiber membrane and a water reinforcing reinforcement disposed on the inner circumferential surface. This becomes possible.

Capillary fabric support may be used as the reinforcing material, it is advantageous to use a separator in which the water-permeable capillary fabric support is integrally fixed to the hollow inside the separator in treating the forged release agent wastewater, for example, poly After preparing a hollow tubular fabric support as shown in FIG. 3 as an ester yarn, a polymer separator such as PVDF may be coated on the surface of the fabric support (see FIG. 2).

At this time, the inner diameter and the outer diameter of the fabric support may be about 1.0mm, about 1.3mm.

The manufacturing process of the capillary fabric support membrane is disclosed in Patent Application No. 2005-23774.

On the other hand, the treated water storage tank 150 is a component for collecting and storing the filtered water discharged from the membrane module 130, the treated water storage tank 150, the filtered water discharge pipe 136 from the filtered water outlet 135a of the membrane module 130 Is connected, the filtration water discharge pipe 136 has a filtration water discharge pump 139 for suctioning and transporting the filtration water filtered by the membrane module 130, and the opening and closing valve 138 for opening and closing the flow path of the filtration water discharge pipe 136 Is installed.

The filtered water from which the releasing agent component is removed when the filtration water discharge pump 139 is driven may be transferred to the treatment water storage tank 150 through the filtration water discharge port 135a and the filtration water discharge pipe 136 and stored therein. The filtered water stored in the treated water storage tank 150 is then re-introduced to the forging process can be used as cooling water.

Although not shown in the drawings for the process input of the filtered water stored in the treated water storage tank 150, the treated water storage tank may be connected to the filtered water supply pipe, the filtered water supply pipe to suck the filtered water stored in the treated water storage tank process Filtrate supply pump for pumping into the can be installed.

And, in a preferred embodiment, the back washing pipe 151 may be connected to the lower portion of the treated water storage tank 150 to the filtered water discharge pipe 136 so that the back washing operation, the back washing pipe 151 The back washing pump 152 for sucking and filtering the filtered water of the treated water storage tank 150 and feeding it to the filtered water discharge pipe 136, and the on-off valve 153 for opening and closing the flow path of the back washing pipe 151 is installed. do.

The backwashing pipe 151 is connected to the upstream position of the filtered water discharge pump 139, which is contaminated by the backwash, that is, the filtered water passes through the separation membrane 132 in the reverse direction, and is attached to the separation membrane 132. It is to remove the substance.

When the backwashing pump 152 is driven, the treated water (filtration water) stored in the treated water storage tank 150 may be supplied to the filtered water outlet 135a of the membrane module 130 as the backwashing pipe 151. In this case, the filtered water introduced in the reverse direction through the filtered water outlet 135a is discharged to the outside of the separation membrane 132 from the inner hollow of each separation membrane 132, the contaminants attached to the separation membrane 132 can be removed. .

As described above, in the membrane module for filtering the release agent wastewater, a process of more reliably removing foreign substances adhering to the separator through periodic backwashing is required.

On the other hand, the upper portion of the treatment water storage tank 150 is connected to the exhaust gas treatment device 160 through the exhaust pipe 161, the exhaust gas treatment device 160 is the upper portion and the storage tank 110 of the treatment water storage tank 150. A component for treating and discharging the exhaust gas discharged through the exhaust pipes 161 and 162 from an upper portion thereof may be configured to have a structure filled with activated carbon capable of adsorbing particles in the exhaust gas.

The exhaust gas treatment device 160 is discharged after treating the odor discharged from the storage tank 110 and the treated water storage tank 150 with activated carbon. There is no need to provide a separate ventilator (exhaust duct, etc.).

Basically, in the forging release agent wastewater treatment apparatus 100 of the present invention, the storage tank 110, the membrane module 130, the treated water storage tank 150, and the like have all the internal spaces in a sealed structure, so that odors generated during the water treatment process may occur. It can prevent the divergence to the outside.

The configuration of the forging release agent wastewater treatment apparatus according to an embodiment of the present invention has been described above, and the operation state will be described below.

First, the wastewater transfer pump 112 is driven to transfer the releasing agent wastewater generated in the forging process to the storage tank 110, and the wastewater supply pump 114 is driven while the release tank wastewater is filled to some extent in the storage tank 110. The release agent wastewater is supplied from the 110 to the membrane module 130.

At this time, the first bubble generating device 120 (first blower) is driven to generate microbubbles in the release agent wastewater of the storage tank 110, and the release agent wastewater subjected to the first aeration treatment is supplied to the separator module 132. .

In addition, the second bubble generating device 140 (second blower) is driven to generate micro-bubbles in the release agent wastewater filled in the membrane module 130, in which the inlet portion of the membrane module 130 is injected into the release agent wastewater ( 134) is injected at the same time so that the release agent waste water is supplied to the inside of the membrane module together with the air.

In the separation membrane module 130, the release agent component of the release agent wastewater is separated from the water by the separation membrane 132, and the filtered water introduced into the hollow inside the separation membrane through the pores of the separation membrane 132 is driven by the filtered water discharge pump 139. The filtered water discharge port 135a and the filtered water discharge pipe 136 are transferred to the treated water storage tank 150.

On the other hand, the release agent wastewater outside the separator containing the release agent component that did not pass through the separation membrane 132 is transferred back to the storage tank 110 through the circulation water outlet 135b and the circulation water discharge pipe 137 for filtration treatment. Recycled to the membrane module 130.

By treating the release agent wastewater by the operation process as described above, the treated water collected in the treated water storage tank 150 is again fed into the forging process and reused as cooling water, and the exhaust gas generated in the storage tank 110 and the treated water storage tank 150. After the purification through the exhaust gas treatment device 160 is discharged.

In addition, periodically performing the above-described membrane backwashing process, in which case the backwashing pump 152 is driven to flow back the filtrate of the treated water storage tank 150 to the membrane module 130, and the backflow of the filtered water separator 132 ) Is passed in the reverse direction and washing is performed.

In the backwashing process, all of the remaining pumps except for the backwash pump 152 are stopped, and all the remaining valves except the on / off valve 153 of the backwashing pipe 151 opened for the filtered water backflow. It is desirable to close.

In addition, the membrane module 130 is operated in such a way as to have a rest period (for example, repeating 3 minutes rest for 7 minutes operation) in the middle of the operation, and supplying air to the membrane module 130 with the second blower 141 during the rest period. This prevents fouling of the membrane.

In addition, it is possible to include a differential pressure measuring means capable of measuring the differential pressure at the front and rear ends of the membrane module 130, in this case, when the differential pressure detected by the differential pressure measuring means rises above a predetermined value (eg, NaOCl, etc.). ), It is possible to maintain the membrane performance continuously.

In this way, the release agent wastewater treatment apparatus according to the present invention is configured to effectively separate and discharge the release agent component and water by treating the forged release agent wastewater in an external circulation method through the membrane module employing the separation membrane, excellent separation performance and treatment efficiency While providing a water content in the waste can be reduced, thereby reducing the amount of waste generated and disposal costs, there is an advantage to reduce the environmental cost of the process.

In addition, since the treated water separated from the release agent particles by the separator can be re-injected into the forging process, there is an advantage that can reduce the amount of water used in the process.

In addition, in the present invention, by maximizing the separation of the release agent particles and water, it is possible to prevent the decay and odor generation of the releasing agent wastewater, which is a conventional problem, thereby improving the working environment as well as solving complaints due to odor emissions. There is an advantage to this.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. Modified forms are also included within the scope of the present invention.

100: forging release agent wastewater treatment device 110: storage tank
111: wastewater injection pipe 112: wastewater transfer pump
113: wastewater supply pipe 114: wastewater supply pump
115: on-off valve 120: first bubble generating device
121: first blower 122: air supply pipe
130: membrane module 131: membrane module housing
132: separator 133a, 133b: fixing member
134: inlet portion 135a: filtered water outlet
135b: circulating water outlet 135c: drain port
135d: drain valve 135e: outlet area
136: filtered water discharge pipe 137: circulating water discharge pipe
138: on-off valve 139: filtered water discharge pump
140: second bubble generator 141: second blower
142: air supply pipe 150: treated water storage tank
151: back washing pipe 152: back washing pump
153: on-off valve 160: exhaust gas treatment device
161: exhaust pipe 162: exhaust pipe

Claims (12)

For treating the release agent wastewater generated in the forging process,
A storage tank 110 in which release agent wastewater is collected and stored;
A first bubble generator (120) for generating a microbubble in the release agent wastewater of the storage tank (110) to allow aeration to prevent oil oxidation of the release agent wastewater;
A plurality of tubular separators 132 for separating and removing the release agent component from the release agent wastewater transferred from the storage tank 110 are installed, and the filtered water separated from the release agent component in the hollow inside the separator from the separator membrane 132 through the separator pores. Separation membrane module 130 to pass through and discharge;
A second bubble generator (140) for generating microbubbles in the release agent wastewater of the separator module (130) to remove contaminants attached to the separator (132) surface;
Treatment water storage tank 150 for storing the filtered water discharged from the membrane module 130;
Forging release agent wastewater treatment apparatus using a separator comprising a.
The method according to claim 1,
The membrane module 130,
Filtrate discharge port is connected to the inlet 134 is connected to the waste water supply pipe 113 for receiving the release agent wastewater from the storage tank 110, and the filtrate discharge pipe 136 for discharging the filtered water to the treatment water storage tank 150 A membrane module housing 131 having a 135a formed therein;
A plurality of tubular separation membranes 132 installed inside the membrane module housing 131 to communicate with the filtered water outlet 135a to discharge the filtered water separated from the release agent component through the filtered water outlet 135a from the inner hollow. ;
Forging release agent wastewater treatment apparatus using a separation membrane comprising a.
The method according to claim 2,
The filtered water discharge pipe 136 is provided with a filtered water discharge pump 139 for transferring the filtered water to the treated water storage tank 150, and an opening and closing valve 138 for opening and closing the flow path of the filtered water discharge pipe 136,
A backwashing pipe 151 is connected to the filtered water discharge pipe 136 at the upstream side of the filtered water discharge pump 139 in the treated water storage tank 150.
The backwashing pipe 151 opens and closes a flow path of the backwashing pump 152 for sucking the filtrate of the treated water storage tank 150 and feeding the filtered water to the filtrate discharge pipe 136. Forging release agent wastewater treatment apparatus using a separator, characterized in that the on-off valve 153 is installed.
The method according to claim 1,
Between the storage tank 110 and the membrane module 130, a circulating water discharge pipe 137 for recovering the release agent wastewater not filtered by the membrane 132 from the membrane module 130 to the storage tank 110 is connected. Forging release agent wastewater treatment apparatus using a separation membrane.
The method according to claim 1,
The first bubble generator 120,
A first blower 121 for supplying air for generating fine bubbles in the release agent wastewater of the storage tank 110;
An air supply pipe 122 connected to the lower portion of the storage tank 110 at the outlet side of the first blower 121 so that the air supplied by the first blower 121 may be injected into the release agent wastewater from the lower portion of the storage tank 110. );
Forging release agent wastewater treatment apparatus using a separation membrane comprising a.
The method according to claim 1,
The second bubble generator 140,
A second blower 141 for supplying air for generating fine bubbles in the release agent wastewater of the membrane module 130;
An air supply pipe 142 connected to supply the air supplied by the second blower 141 to the release agent wastewater of the membrane module 130;
Forging release agent wastewater treatment apparatus using a separation membrane comprising a.
The method of claim 6,
The air supply pipe 142 is connected to the inlet part 134 of the membrane module 130 into which the releasing agent waste water transferred from the storage tank 110 is input, so that the air supplied by the second blower 141 is supplied to the inlet part ( Forging releasing agent wastewater treatment apparatus using a separator, characterized in that to be supplied to the membrane module 130 in a mixed state with the releasing agent wastewater in 134).
The method according to claim 1,
An exhaust gas treatment device 160 connected to an upper portion of the treatment water storage tank 150 and an exhaust pipe 161 to purify and discharge the exhaust gas discharged from the treatment water storage tank 150; Forging release agent wastewater treatment apparatus using a separation membrane.
The method according to claim 8,
The exhaust gas treatment device 160 is connected to the upper portion of the storage tank 110 and the exhaust pipe 162 by the forging release agent wastewater treatment apparatus using a separator, characterized in that to purify the exhaust gas discharged from the storage tank 110. .
The method according to claim 8 or 9,
The exhaust gas treatment device 160 is a forging release agent wastewater treatment apparatus using a separator, characterized in that by filling the activated carbon that can adsorb particles in the exhaust gas.
The method according to claim 1 or 2,
The separator 132 is a forging release agent wastewater treatment apparatus using a separator, characterized in that the hydrophilized PVDF separator.
The method according to claim 1 or 2,
The separator 132 is a forging mold release agent wastewater treatment apparatus using a separator, characterized in that the capillary fabric support membrane is a water-repellent capillary fabric support for disintegrating strength on the inner peripheral surface of the polymer membrane.

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