CN116870702B - A cutting fluid two-way separation and filtering mechanism and its cutting fluid treatment system and method - Google Patents

Abstract

The invention discloses a cutting fluid bidirectional separation filtering mechanism and a cutting fluid treatment system and method thereof, belonging to the technical field of cutting fluid treatment. When the invention is used for filtering different types of cutting fluids, the filter does not need to be frequently detached, cleaned and reinstalled, so that the convenience degree of the cutting fluid treatment is improved, and the invention is better suitable for the treatment of different types of cutting fluids.

Description

A cutting fluid two-way separation and filtering mechanism and its cutting fluid treatment system and method

Technical field

The present invention relates to the technical field of cutting fluid treatment, and in particular to a cutting fluid bidirectional separation and filtering mechanism and a cutting fluid treatment system and method thereof.

Background technique

Cutting fluid is a machining fluid that is scientifically compounded from a variety of super functional additives. It has good cooling, cleaning, lubrication, and anti-rust effects. However, if metal cutting emulsion is not properly maintained during use, it will deteriorate, thus affecting the processing effect and even making it unusable. Moreover, the waste liquid of emulsion belongs to the category of hazardous waste HW09. If it is discharged directly, it will cause huge harm to the environment. However, the general sewage treatment method is not only difficult to treat metal cutting emulsion, but also costly.

There are two major categories of cutting fluids commonly used in metal cutting, namely water-based cutting fluids and oil-based cutting fluids. Oil-based cutting fluids are composed of base oil mixed with different proportions of extreme pressure wear-resistant additives, lubricants, and anti-rust additives. It is synthesized with additives such as antifungal agents, antifungal agents, refrigerants, etc.; water-based cutting fluid is scientifically formulated from a variety of super functional additives. The difference in composition leads to great differences between the two in terms of waste liquid treatment and filter equipment maintenance.

Most of the existing automated cutting fluid treatment equipment filters a single type of cutting fluid through modular filter components for reuse or waste liquid treatment. For example, the Chinese patent with the authorization announcement number CN 104031733 B discloses a treatment of waste cutting fluid. The method and separation and recovery system include: heating and pressurizing the waste cutting fluid to be processed and then performing rough filtration to remove solid impurities; performing membrane filtration separation on the waste cutting fluid after rough filtration to obtain cutting clear fluid and cutting concentrated fluid; Treat the cutting fluid as hazardous waste liquid, and use the clear cutting fluid to prepare cutting fluid or transport it to the sewage treatment system and discharge it after biochemical treatment to meet standards. This solution does not have special settings for different types of cutting fluids. When dealing with different types of cutting fluids, the conventional method of replacing different filters can only be used.

For another example, the Chinese patent application publication number CN 111499069 A discloses a comprehensive waste cutting fluid treatment system and a waste cutting fluid treatment method. The comprehensive waste cutting fluid treatment system includes a cutting fluid collection device, a tubular membrane system, a circulation tank, a multi-stage RO system, a preparation tank, a filter, a deamination membrane system, a water production tank, a sulfuric acid tank, a RO concentrate tank, and normal temperature evaporation system, oil and water concentrate tank, and demulsification system. This solution uses a special organic membrane to effectively separate oily wastewater and salty wastewater. It only considers the treatment of oily wastewater and does not have the ability to handle different types of cutting fluids.

In summary, the existing cutting fluid treatment systems cannot adapt to the filtration needs of various cutting fluids. If used to filter different types of cutting fluids, the filters need to be frequently removed, cleaned, and reinstalled, which will lead to a cumbersome processing process. , takes a long time, and ultimately affects the actual reuse efficiency of cutting fluid during processing.

Contents of the invention

The purpose of the present invention is to provide a cutting fluid bidirectional separation and filtration mechanism and a cutting fluid treatment system and method to solve the problems existing in the above-mentioned prior art and use a separation control chamber to control the direction of oil-based cutting fluid and water-based cutting fluid. It is processed through different filter modules. When used to filter different types of cutting fluids, there is no need to frequently remove, clean and reinstall the filters. This improves the convenience of cutting fluid processing and is better suitable for different types of cutting fluids. Types of cutting fluid handling.

In order to achieve the above objects, the present invention provides the following solutions:

The invention provides a cutting fluid bidirectional separation and filtering mechanism, which includes a separation control chamber and a cutting fluid inlet, an oil-based cutting fluid outlet and a water-based cutting fluid outlet provided on the separation control chamber. The cutting fluid inlet is used for connection Cutting fluid input pipeline, the oil-based cutting fluid outlet is connected to an oil-based cutting fluid filter module, the water-based cutting fluid outlet is connected to a water-based cutting fluid filter module, and the oil-based cutting fluid filter module The purified water outlet and the purified water outlet of the water-based cutting fluid filtration module lead to the purified liquid pool. A movable valve flap is provided in the separation control chamber. Moving the movable valve flap can connect the cutting fluid inlet to all places. The oil-based cutting fluid outlet may be connected to the water-based cutting fluid outlet. When the oil-based cutting fluid enters the cutting fluid inlet, the cutting fluid inlet and the oil-based cutting fluid outlet are connected, and the water-based cutting fluid enters the cutting fluid inlet. When the cutting fluid is imported, the cutting fluid inlet and the water-based cutting fluid outlet are connected.

Preferably, the separation control chamber includes a chamber body and the movable valve flap arranged in the chamber body, and the cutting fluid inlet, the oil-based cutting fluid outlet and the water-based cutting fluid outlet are distributed in a U-shape. , the oil-based cutting fluid outlet and the water-based cutting fluid outlet are arranged oppositely, the movable valve flap adopts a rotating paddle, the same side of the rotating paddle is used as a working surface, and the working surface is located on the rotating paddle. The two extreme positions of the swing path of the piece serve as the oil-based cutting fluid working surface facing the oil-based cutting fluid outlet and the water-based cutting fluid working surface facing the water-based cutting fluid outlet.

Preferably, a rotation shaft is provided through the warehouse body, the rotation paddle is installed on the rotation shaft, and an end of the rotation shaft extending out of the warehouse body is connected to a rotation drive mechanism.

Preferably, the rotational driving mechanism includes a driven gear and a driving gear that mesh with each other. The driven gear is installed on the rotating shaft. The driving gear is connected to a driving motor. By controlling the positive and negative directions of the driving motor, The rotation controls the two-way swing of the rotating paddle.

Preferably, the cutting fluid input pipeline is provided with an oil concentration detection sensor for detecting the concentration of cutting fluid oil in the cutting fluid input pipeline. The oil concentration detection sensor is arranged at a distance from the chamber body that meets the requirements of the detected cutting fluid inflow. The time of the warehouse body matches the action time of the rotating paddle.

The present invention provides a cutting fluid treatment system, which includes a waste liquid pretreatment mechanism and a cutting fluid two-way separation and filtering mechanism as described above. The waste liquid pretreatment mechanism includes interconnected bag-type slag separators and nano-flat tanks. Mask coarse filter tank, the inlet of the pretreatment mechanism is connected to the sewage inlet and the cutting fluid to be treated is introduced, and the outlet of the nano planar membrane coarse filter tank is connected to the cutting fluid input pipeline.

Preferably, it includes an oil-based cutting fluid circulation barrel and a water-based cutting fluid circulation barrel. The oil-based cutting fluid circulation barrel and the water-based cutting fluid circulation barrel are respectively connected to the cutting fluid inlet, and are controlled on and off through valves. The concentrated water outlet of the oil-based cutting fluid filter module is connected to the oil-based cutting fluid circulation barrel, and the concentrated water outlet of the water-based cutting fluid filter module is connected to the water-based cutting fluid circulation barrel.

Preferably, it includes a maintenance backwash mechanism, the maintenance backwash mechanism includes a cleaning liquid supply structure and a waste residue collection structure, the cleaning liquid supply structure is used to provide cleaning liquid, and the waste residue collection structure is used to collect the waste residue obtained by backwashing. .

Preferably, the waste slag collection structure includes a settling box and a slag collecting box. The settling box is connected to the cutting fluid inlet. The impurities precipitated in the lower layer of the settling box are passed into the slag collecting box. The upper layer of the settling box is The cutting fluid flows back to continue processing.

The invention also provides a cutting fluid treatment method, which includes the following contents:

Pour the cutting fluid into the cutting fluid inlet of the separation control chamber;

Before the cutting fluid enters the cutting fluid inlet, the oil concentration detection sensor is used to determine whether the incoming cutting fluid is an oil-based cutting fluid or a water-based cutting fluid;

The oil concentration detection sensor transmits the judgment signal to the control system of the separation control chamber;

The control system controls the position of the movable valve flap in the separation control chamber so that the cutting fluid inlet is connected to the oil-based cutting fluid outlet or the water-based cutting fluid outlet. Specifically, when the detection result is oil-based cutting fluid, the The cutting fluid inlet is connected to the oil-based cutting fluid outlet. When the test result is water-based cutting fluid, the cutting fluid inlet is connected to the water-based cutting fluid outlet;

The oil-based cutting fluid flows through the oil-based cutting fluid outlet into the oil-based cutting fluid filter module for processing, and the water-based cutting fluid flows through the water-based cutting fluid outlet into the water-based cutting fluid filter module for processing;

The clean water obtained after treatment with oil-based cutting fluid or water-based cutting fluid is discharged into the clean water pool for recycling.

Compared with the prior art, the present invention achieves the following technical effects:

(1) The present invention uses a separation control chamber to control the direction of oil-based cutting fluid and water-based cutting fluid, so that they can be processed through different filter modules. When used for filtration of different types of cutting fluids, there is no need to frequently disassemble the filter. removal, cleaning and reinstallation, which improves the convenience of cutting fluid treatment and is better suitable for the treatment of different types of cutting fluids;

(2) The valve disc of the separation control chamber of the present invention adopts a rotating paddle, and the on-off path is changed by the swing of the rotating paddle, which can easily realize the selection of the circulation path of oil-based cutting fluid and water-based cutting fluid; in addition, The driving motor is used to drive the forward and reverse rotation of the driving gear and the driven gear to control the position of the rotating paddle, which can achieve rapid switching as needed and is easy to operate;

(3) The present invention detects the oil concentration of the cutting fluid through the oil concentration detection sensor to determine whether it is an oil-based cutting fluid or a water-based cutting fluid, and then controls the rotating paddle to be in different positions based on the determined results to achieve separate oil control. Base cutting fluid and water-based cutting fluid are processed using different filter modules, which can achieve automatic control;

(4) The present invention is equipped with an oil-based cutting fluid circulation barrel and a water-based cutting fluid circulation barrel. The oil-based cutting fluid circulation barrel and the water-based cutting fluid circulation barrel are respectively connected to the cutting fluid inlet. The oil-based cutting fluid filters the concentrated water of the module. The outlet is connected to the oil-based cutting fluid circulation barrel, and the concentrated water outlet of the water-based cutting fluid filter module is connected to the water-based cutting fluid circulation barrel. Through the above settings, the filtered concentrated water can be recirculated, so that the concentrated water can be refluxed and recycled. Treatment, improve the filtration effect of cutting fluid, while reducing the amount of cutting fluid to avoid the waste of cutting fluid.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the drawings of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the bidirectional separation and filtering mechanism of cutting fluid according to the present invention;

Figure 2 is a schematic diagram showing the internal structure of the warehouse body in Figure 1;

Figure 3 is a schematic structural diagram of the oil-based cutting fluid filter module of the present invention;

Figure 4 is a schematic structural diagram of the water-based cutting fluid filtration module of the present invention;

Figure 5 is a schematic structural diagram of the cutting fluid treatment system of the present invention;

Figure 6 is an overall flow chart of cutting fluid treatment according to the present invention;

Among them, 1. Oil-based cutting fluid outlet; 2. Chamber cover; 3. Water-based cutting fluid outlet; 4. Water-based cutting fluid filter module; 41. First water inlet; 42. First concentrated water outlet; 43. First water purification outlet; 44. First tubular filter element; 5. Driven gear; 6. Chamber body; 7. Oil-based cutting fluid filtration module; 71. Second water inlet; 72. Second concentrated water outlet; 73. Second water purification outlet; 74. Second tubular filter element; 8. Rotating shaft; 9. Rotating paddle; 11. Frame bracket; 12. Valve; 13. Water-based cutting fluid circulation barrel; 14. Oil-based cutting Liquid circulation barrel; 15. Cleaning tank; 16. Water pump; 17. Liquid anti-corrosion diaphragm pressure gauge; 18. Liquid return diaphragm pump; 19. Waste liquid pretreatment mechanism; 20. Moving wheel set; 21. Cutting fluid inlet; 22 , Waste residue collection structure; 23. Sewage liquid inlet.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

The purpose of the present invention is to provide a cutting fluid bidirectional separation and filtration mechanism and a cutting fluid treatment system and method to solve the problems existing in the existing technology and use a separation control chamber to control the direction of oil-based cutting fluid and water-based cutting fluid, so that It is processed through different filter modules. When used to filter different types of cutting fluids, there is no need to frequently remove, clean and reinstall the filters. This improves the convenience of cutting fluid processing and is better suitable for different types of cutting fluids. Cutting fluid treatment.

In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figures 1 to 4, the present invention provides a two-way separation and filtering mechanism for cutting fluid, including a separation control chamber. The separation control chamber includes a chamber body 6 and a chamber cover 2. The chamber cover 2 can be removed from the chamber body 6. The chamber cover 2 is provided with a cutting fluid inlet 21, and the chamber body 6 is provided with an oil-based cutting fluid outlet 1 and a water-based cutting fluid outlet 3. The cutting fluid inlet 21 is used to connect the cutting fluid input pipeline, and the cutting fluid to be processed is introduced into the separation control chamber through the cutting fluid inlet 21. The oil-based cutting fluid outlet 1 is connected to an oil-based cutting fluid filter module 7. The oil-based cutting fluid filter module 7 is provided with a second water inlet 71, a second clean water outlet 73 and a second concentrated water outlet 72. The second inlet The water port 71 is connected to the oil-based cutting fluid outlet 1; the water-based cutting fluid outlet 3 is connected to a water-based cutting fluid filter module 4, and the water-based cutting fluid filter module 4 is provided with a first water inlet 41, a first clean water outlet 43 and The first concentrated water outlet 42 and the first water inlet 41 are connected to the water-based cutting fluid outlet 3 . The first concentrated water outlet 42 and the second concentrated water outlet 72 can be refluxed for reprocessing, and the first purified water outlet 43 and the second purified water outlet 73 lead to the purified liquid pool.

As shown in Figures 3 and 4, the oil-based cutting fluid filter module 7 and the water-based cutting fluid filter module 4 have the same structure. Among them, the second water inlet 71 and the second concentrated water inlet 71 of the oil-based cutting fluid filter module 7 The water outlet 72 and the second clean water outlet 73 are respectively provided with connecting structures such as connecting flanges, and multiple second tubular filter elements 74 are distributed internally. The second tubular filter element 74 can be a silicon carbide semiconductor inorganic membrane tubular filter element. The first water inlet 41, the first concentrated water outlet 42 and the first clean water outlet 43 of the water-based cutting fluid filtration module 4 are respectively provided with connection structures such as connecting flanges, and multiple first tubular filter elements 44 are distributed internally. , the first tubular filter element 44 can be a silicon carbide semiconductor inorganic membrane tubular filter element. The oil-based cutting fluid filtration module 7 and the water-based cutting fluid filtration module 4 adopt the same filtration principle, that is, cross-flow filtration. By applying driving force on both sides of the membrane, the sewage flows parallel to the filter membrane under the driving force of the pump. Small molecules pass through the filter membrane while pollutants still flow on the membrane surface. Since there is no strong conflict between the liquid and the filter membrane, the flow direction of the mixed liquid is tangent to the membrane surface under the action of power, and the shear force formed between the liquid and the membrane surface is To a certain extent, it can effectively reduce the accumulation of impurities on the membrane surface and block the filter pores, and also facilitates backwashing of the filtration device in the later stage.

There is a movable valve flap in the warehouse 6. Moving the movable valve flap can make the cutting fluid inlet 21 connected to the oil-based cutting fluid outlet 1 or the water-based cutting fluid outlet 3. The setting form of the movable valve flap can be in the movable valve flap. Two channels are set up. The two channels have different application states at different valve positions. At one valve position, one channel is connected to the cutting fluid inlet 21 and the oil-based cutting fluid outlet 1. At another valve position, the other channel is connected. The cutting fluid inlet 21 and the water-based cutting fluid outlet 3; alternatively, the movable valve flap can be rotated to change the corresponding communication position. By controlling the position of the movable valve disc automatically or manually, when the oil-based cutting fluid enters the cutting fluid inlet 21, the cutting fluid inlet 21 is connected to the oil-based cutting fluid outlet 1, and when the water-based cutting fluid enters the cutting fluid inlet 21, the cutting fluid The inlet 21 is connected with the water-based cutting fluid outlet 3. The invention uses a separation control chamber to control the direction of oil-based cutting fluid and water-based cutting fluid, so that they can be processed through different filter modules. When used to filter different types of cutting fluids, the filter does not need to be frequently removed and cleaned. and reinstallation, which improves the convenience of cutting fluid processing and is better suitable for processing different types of cutting fluids.

As shown in Figures 1 and 2, the cutting fluid inlet 21, the oil-based cutting fluid outlet 1 and the water-based cutting fluid outlet 3 are distributed in a vertical shape. The oil-based cutting fluid outlet 1 and the water-based cutting fluid outlet 3 are arranged oppositely. Import 21 is located at the top of the character shape. The movable valve disc adopts a rotating paddle 9, and the same surface of the rotating paddle 9 is used as a working surface. The two extreme positions of the swing path of the rotating paddle 9 serve as the oil-based cutting fluid working surface facing the oil-based cutting fluid outlet 1. and the water-based cutting fluid working surface facing the water-based cutting fluid outlet 3. When used as an oil-based cutting fluid working surface, the cutting fluid inlet 21 and the oil-based cutting fluid outlet 1 are connected to form a circulation path for the oil-based cutting fluid. When used as a water-based cutting fluid working surface, the cutting fluid inlet 21 and the water-based cutting fluid are connected. The liquid outlet 3 is connected to form a circulation path for the water-based cutting fluid. By swinging the paddle 9, the on-off path is changed, and the circulation paths of oil-based cutting fluid and water-based cutting fluid can be easily selected.

The warehouse body 6 is provided with a rotating shaft 8 running through it. The rotating paddle 9 is installed on the rotating shaft 8. The rotation of the rotating shaft 8 can drive the rotating paddle 9 to a rotating position. One end of the rotating shaft 8 extending out of the warehouse body 6 is connected with a rotating shaft. Driving mechanism, the rotating driving mechanism can be manual or electric.

The rotation driving mechanism includes a driven gear 5 and a driving gear that mesh with each other. The driven gear 5 is installed on the rotating shaft 8. The driving gear is connected to a driving motor. By controlling the forward and reverse rotation of the driving motor, the two-way swing of the rotating paddle 9 can be controlled. . The driving motor is used to drive the driving gear and the driven gear 5 to rotate forward and reverse to control the position of the rotating paddle 9, which can realize quick switching as needed and is easy to operate.

The cutting fluid input pipeline is provided with an oil concentration detection sensor for detecting the concentration of cutting fluid oil circulating in the cutting fluid input pipeline. The oil concentration detection sensor is arranged at a distance from the bin body 6 to meet the time required for the detected cutting fluid to flow into the bin body 6 The requirement is to match the action time of the rotating paddle 9, that is, the electrical signal can be given enough time to be transmitted to the control system, and the control system is used to issue control instructions to control the action of the rotating paddle 9. The function of the oil concentration detection sensor is mainly to detect the concentration of oil in the cutting fluid to determine whether it is an oil-based cutting fluid or a water-based cutting fluid. The principle is that the oil-based cutting fluid has a higher oil concentration and fewer impurities. ; The concentration of oil doped in water-based cutting fluid is low. According to the relevant data analysis of the oil concentration in the cutting fluid, the concentration range is summarized, and the oil concentration sensor parameters are set to a fixed value within this range. When the detected When the concentration is greater than this threshold, the system determines that the pipeline is passing through oil-based cutting fluid. At this time, the oil concentration sensor will send out an electrical signal and pass it to the drive motor. The drive motor drives the driving gear to rotate forward and controls the meshing with the driving gear. The driven gear 5 rotates to the designated position, so that the rotating paddle 9 contacts the bottom partition of the chamber 6, thereby realizing the connection of the pipeline on this side of the oil-based cutting fluid, and flowing into the oil-based cutting fluid filter module through this pipeline 7. Complete the filtration of oil-based cutting fluid. On the contrary, if the detected concentration is lower than this threshold, the oil concentration sensor controls the driving motor to reverse, and the rotating paddle 9 also rotates reversely to a designated position in contact with the bottom partition on the other side of the bin 6, and the oil concentration sensor controls the driving motor to reverse. The pipeline is switched to the side of the pipeline corresponding to the water-based cutting fluid, and flows into the water-based cutting fluid filter module 4 through the pipeline to complete the filtration of the water-based cutting fluid. The oil concentration of the cutting fluid is detected through the oil concentration detection sensor to determine whether it is an oil-based cutting fluid or a water-based cutting fluid. Then, the rotating paddle 9 is controlled to be in different positions according to the determined results, so as to achieve separate detection of oil-based cutting fluid and water-based cutting fluid. Water-based cutting fluids are processed using different filtration modules, enabling automatic control.

The invention solves the problem that the existing filtering device cannot adapt to the filtration needs of multiple cutting fluids when reusing a single type of cutting fluid through modular filter components, and the existing equipment has complex working device circuits and low working efficiency. Technical issues, the system design is reasonable, the pipeline switching between oil-based cutting fluid and water-based cutting fluid is automatically completed, the corresponding filter module is adaptively switched according to the detection result of the cutting fluid type, and the dual-module filter module conversion is completed to cope with different conditions. In the cutting fluid filtration process of various types of machine tools, the recovery efficiency has been greatly improved, and high technical effects have been achieved in the recovery process.

As shown in FIGS. 5 and 6 , the present invention provides a cutting fluid treatment system, which includes a waste liquid pretreatment mechanism 19 and a cutting fluid bidirectional separation and filtering mechanism as described above. The waste liquid pretreatment mechanism 19 includes interconnected bag-type Slag separator tank and nano plane membrane coarse filter tank. The bag type slag separator tank has a long service life. It can initially remove floating oil and coarse slag in waste cutting fluid. Its inlet is connected to the waste liquid inlet 23 and passes into the cutting fluid to be treated. , the outlet of the nano planar membrane coarse filter tank is connected to the cutting fluid input pipeline, and the cutting fluid input pipeline is connected to the separation control chamber of the cutting fluid two-way separation and filtering mechanism, and the cutting fluid processed by the waste liquid pretreatment mechanism 19 is transported to the oil-based cutting machine. The liquid filtration module 7 or the water-based cutting fluid filtration module 4 performs corresponding filtration processing. The bag-type slag separator and nano-plane membrane coarse filter can be reused multiple times. The product consumables are easy to replace and the separation cost is low. It can effectively improve the separation efficiency of the entire machine while protecting subsequent pipelines and devices. The cutting fluid treatment system includes a display installation port for installing an industrial-grade display, which can display the working status in real time and display information such as the operation of each pump during the treatment process and related parameters of the treatment. The cutting fluid treatment system includes a frame bracket 11. The above-mentioned tanks, modules and other structures are installed on the frame bracket 11. A moving wheel set 20 is provided at the bottom of the frame bracket 11 to facilitate moving the position as needed.

It includes an oil-based cutting fluid circulation barrel 14 and a water-based cutting fluid circulation barrel 13. The oil-based cutting fluid circulation barrel 14 and the water-based cutting fluid circulation barrel 13 are respectively connected to the cutting fluid inlet 21, and are controlled on and off through the valve 12, that is to say , when filtering the oil-based cutting fluid, open the oil-based cutting fluid circulation barrel 14, and when filtering the water-based cutting fluid, open the water-based cutting fluid circulation barrel 13. The concentrated water outlet of the oil-based cutting fluid filtration module 7 is connected to the oil-based cutting fluid circulation barrel 14 to form a recycling process of the filtered concentrated water of the oil-based cutting fluid. The concentrated water outlet of the water-based cutting fluid filtration module 4 is connected to the water-based cutting fluid circulation barrel 13 to form a recycling process of the concentrated water filtered by the water-based cutting fluid. A liquid return diaphragm pump 18 is provided between each circulation barrel and the separation control chamber, and each circulation barrel is independently provided with a valve 12 for control. The liquid return diaphragm pump 18 can be used as power to drive the concentrated water circulation, and the concentrated water can be refluxed. Circulation and reprocessing can improve the filtration effect of cutting fluid, while reducing the amount of cutting fluid and avoiding the waste of cutting fluid. The lower layer of the oil-based cutting fluid circulation barrel 14 and the water-based cutting fluid circulation barrel 13 is designed with a tapered bottom, which can be used to collect waste residue, which is beneficial to cleaning up the waste liquid after the filtration cycle is completed.

It includes maintenance of the backwash mechanism. The maintenance backwash mechanism includes a cleaning liquid supply structure and a waste residue collection structure 22. The cleaning liquid supply structure is used to provide cleaning liquid. The cleaning liquid is located in the cleaning tank 15. The water pump 16 is used as power to pump the cleaning liquid from The first concentrated water outlet 42 leads to the water-based cutting fluid filter module 4 or the second concentrated water outlet 72 leads to the oil-based cutting fluid filter module 7. The waste residue collection structure 22 is used to collect the waste residue obtained by backwashing. When it is detected that the flow rate in the filtration module decreases (the flow rate condition can be judged by the pressure change of the liquid anti-corrosion diaphragm pressure gauge 17, if the pressure is too high, there may be serious blockage in the module), the cutting fluid filtration process is suspended. , perform backwashing, and after the impurities and dirt are hydraulically discharged from the filter module, the normal filtering function of the filter module can be restored.

The cleaning pool 15 is responsible for cleaning chemical reagents and maintaining a good reflow rate of the device. A variety of drugs can be stored in different tanks at the same time, or a separate tank can be used to fill different drugs as needed, including sterilization drugs and pickling drugs. , alkali cleaning chemicals, surfactants, water, etc.

The waste residue collection structure 22 includes a sedimentation tank and a slag collection box. The sedimentation tank is connected to the cutting fluid inlet 21. The waste residue obtained by backwashing flows out from the cutting fluid inlet 21 to the sedimentation tank. The impurities precipitated in the lower layer of the sedimentation tank pass into the slag collection box. The sedimentation tank The upper cutting fluid flows back to continue processing.

As shown in Figures 5 and 6, the present invention also provides a cutting fluid treatment method, which includes the following:

Pass the cutting fluid into the cutting fluid inlet 21 of the separation control chamber;

Before the cutting fluid enters the cutting fluid inlet 21, the oil concentration detection sensor is used to determine whether the incoming fluid is an oil-based cutting fluid or a water-based cutting fluid;

The oil concentration detection sensor transmits the judgment signal to the control system of the separation control chamber;

The control system controls the position of the movable valve disc in the separation control chamber so that the cutting fluid inlet 21 is connected to the oil-based cutting fluid outlet 1 or the water-based cutting fluid outlet 3. Specifically, when the test result is oil-based cutting fluid, the cutting fluid inlet 21 Connected to the oil-based cutting fluid outlet 1, when the detection result is water-based cutting fluid, the cutting fluid inlet 21 is connected to the water-based cutting fluid outlet 3;

The oil-based cutting fluid passes through the oil-based cutting fluid outlet 1 and flows into the oil-based cutting fluid filter module 7 for processing, and the water-based cutting fluid flows through the water-based cutting fluid outlet 3 into the water-based cutting fluid filter module 4 for processing;

The clean water obtained after treatment with oil-based cutting fluid or water-based cutting fluid is discharged into the clean water pool for recycling.

Specific examples are used in the present invention to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for those of ordinary skill in the art, based on this The idea of the invention will be subject to change in the specific implementation and scope of application. In summary, the contents of this description should not be construed as limitations of the present invention.

Claims (10)

1. A cutting fluid bidirectional separation filtering mechanism is characterized in that: the oil-based cutting fluid inlet is used for being connected with a cutting fluid input pipeline, the oil-based cutting fluid outlet is connected with an oil-based cutting fluid filtering module, the water-based cutting fluid outlet is connected with a water-based cutting fluid filtering module, a water purifying outlet of the oil-based cutting fluid filtering module and a water purifying outlet of the water-based cutting fluid filtering module are communicated with a water purifying pond, a movable valve clack is arranged in the separation control bin, the movable valve clack is moved to enable the cutting fluid inlet to be communicated with the oil-based cutting fluid outlet or the water-based cutting fluid outlet, when oil-based cutting fluid enters the cutting fluid inlet, the cutting fluid inlet is communicated with the oil-based cutting fluid outlet, and when water-based cutting fluid enters the cutting fluid inlet, the cutting fluid inlet is communicated with the water-based cutting fluid outlet.

2. The cutting fluid bidirectional separation filter mechanism according to claim 1, wherein: the separation control bin comprises a bin body and movable valve clacks arranged in the bin body, the cutting fluid inlet, the oil-based cutting fluid outlet and the water-based cutting fluid outlet are distributed in a delta shape, the oil-based cutting fluid outlet and the water-based cutting fluid outlet are oppositely arranged, the movable valve clacks adopt rotary paddles, the same surface of the rotary paddles is used as a working surface, and the two limit positions of the working surface on the swinging path of the rotary paddles are respectively used as an oil-based cutting fluid working surface facing the oil-based cutting fluid outlet and a water-based cutting fluid working surface facing the water-based cutting fluid outlet.

3. The cutting fluid bidirectional separation filter mechanism according to claim 2, wherein: the rotary shaft is arranged on the bin body in a penetrating mode, the rotary shifting sheet is arranged on the rotary shaft, and one end, extending out of the bin body, of the rotary shaft is connected with a rotary driving mechanism.

4. The cutting fluid bidirectional separation filter mechanism according to claim 3, wherein: the rotary driving mechanism comprises a driven gear and a driving gear which are meshed with each other, the driven gear is arranged on the rotating shaft, the driving gear is connected with a driving motor, and the bidirectional swing of the rotary plectrum is controlled by controlling the forward and reverse rotation of the driving motor.

5. The cutting fluid bidirectional separation filter mechanism according to claim 4, wherein: the cutting fluid input pipeline is provided with an oil concentration detection sensor for detecting the oil concentration of cutting fluid in the cutting fluid input pipeline, and the setting position of the oil concentration detection sensor is away from the distance between the bin bodies, so that the requirement that the detected time of flowing the cutting fluid into the bin bodies is matched with the action time of the rotary shifting sheets is met.

6. A cutting fluid treatment system, characterized by: the device comprises a waste liquid pretreatment mechanism and the cutting fluid bidirectional separation filtering mechanism as claimed in any one of claims 1 to 5, wherein the waste liquid pretreatment mechanism comprises a cloth bag type slag separation tank and a nano planar membrane rough filtration tank which are mutually communicated, an inlet of the pretreatment mechanism is connected with a sewage inlet and is communicated with cutting fluid to be treated, and an outlet of the nano planar membrane rough filtration tank is connected with the cutting fluid input pipeline.

7. The cutting fluid treatment system of claim 6, wherein: the cutting fluid recycling device comprises an oil-based cutting fluid recycling barrel and a water-based cutting fluid recycling barrel, wherein the oil-based cutting fluid recycling barrel and the water-based cutting fluid recycling barrel are respectively connected with a cutting fluid inlet and are controlled by a valve in an on-off mode, a concentrated water outlet of an oil-based cutting fluid filtering module is connected with the oil-based cutting fluid recycling barrel, and a concentrated water outlet of the water-based cutting fluid filtering module is connected with the water-based cutting fluid recycling barrel.

8. The cutting fluid treatment system of claim 6, wherein: the device comprises a maintenance backwashing mechanism, wherein the maintenance backwashing mechanism comprises a cleaning liquid supply structure and a waste residue collection structure, the cleaning liquid supply structure is used for supplying cleaning liquid, and the waste residue collection structure is used for collecting waste residues obtained by backwashing.

9. The cutting fluid treatment system of claim 8, wherein: the waste residue collection structure comprises a precipitation tank and a residue collection tank, wherein the precipitation tank is connected with the cutting fluid inlet, impurities precipitated on the lower layer of the precipitation tank are introduced into the residue collection tank, and the upper layer cutting fluid of the precipitation tank is refluxed for continuous treatment.

10. The cutting fluid treatment method is characterized by comprising the following steps of:

a cutting fluid inlet for introducing the cutting fluid into the separation control bin;

judging whether the cutting fluid is the oil-based cutting fluid or the water-based cutting fluid through an oil concentration detection sensor before the cutting fluid enters the cutting fluid inlet;

the oil concentration detection sensor transmits the judged signal to a control system of the separation control bin;

the control system controls the position of the movable clack in the separation control bin, so that the cutting fluid inlet is communicated with the oil-based cutting fluid outlet or the water-based cutting fluid outlet, specifically, when the detection result is oil-based cutting fluid, the cutting fluid inlet is communicated with the oil-based cutting fluid outlet, and when the detection result is water-based cutting fluid, the cutting fluid inlet is communicated with the water-based cutting fluid outlet;

the oil-based cutting fluid is introduced into the oil-based cutting fluid filtering module for treatment through the oil-based cutting fluid outlet, and the water-based cutting fluid is introduced into the water-based cutting fluid filtering module for treatment through the water-based cutting fluid outlet;

the oil-based cutting fluid or the purified water obtained after the water-based cutting fluid is treated is discharged into a purified water tank for recycling.