Aluminum-containing slag and aluminum chip cutting fluid cleaning and recycling system

Abstract

This invention discloses a cutting fluid cleaning and recycling system containing aluminum slag and aluminum chips, relating to the field of wastewater treatment technology. It includes a main filtration mechanism, a secondary filtration mechanism, and a water pump. The main filtration mechanism includes a main water tank, with a servo motor mounted on its outer wall. Both sides of the main water tank have openings, and inner filter screens are fixedly connected to these openings. The secondary filtration mechanism is connected to the two outer sides of the main filtration mechanism. This invention reduces the content of aluminum slag and aluminum chips in the recycled cutting fluid by adding a side water tank outside the main water tank, thus relocating the water pump from the main tank to the side water tank. By installing a double-layer filter consisting of an inner filter screen and an outer filter screen at the openings of the main and side water tanks, the amount of aluminum slag and aluminum chips in the recycled cutting fluid is reduced. This also reduces the amount of aluminum slag and aluminum chips sucked in by the water pump during operation, decreasing the pump failure rate and reducing the frequency, time, and labor costs of pump cleaning and maintenance, thereby improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a system for cleaning and reusing cutting fluid containing aluminum slag and aluminum chips. Background Technology

[0002] In the die casting process, spray technology is mainly used for cooling and lubrication. By cooling the mold with spray, its temperature is reduced, thereby accelerating the solidification speed of the casting and improving production efficiency. Cutting fluid is sprayed into the mold surface in atomized form to form a cooling film; at the same time, it is evenly coated on the mold surface by the spray device, reducing friction between the mold and the casting, extending the mold life, and improving the surface quality of the casting.

[0003] For example, the "Cutting Fluid Filtration and Recovery Device" with patent publication number CN106693489B includes a filter drum and a rotating shaft. The surface of the filter drum is provided with several through holes. An inner scraper and a diversion funnel are provided on the rotating shaft of the filter drum. A discharge pipe is provided on one side of the filter drum, and a conveyor belt is provided on the other side of the filter drum. It also includes a support, on which an outer scraper is provided. One end of the outer scraper abuts against the filter drum, and the other end of the outer scraper is located above the conveyor belt. A drying device is provided below the conveyor belt. A waste box and a chip storage box are arranged in sequence below the end of the conveyor belt. A magnet is provided above the end of the conveyor belt.

[0004] However, in existing technologies, the equipment generates a large amount of aluminum dross and shavings during processing. Some of the fine aluminum dross flows into the water tank along with the cutting fluid. Long-term accumulation causes the auxiliary water pump to become clogged, reducing water pressure and triggering equipment alarms and shutdowns. Because the water pump is installed in a compact location with a small dross removal hole, operation is inconvenient and cleaning is incomplete. The water pump also needs to be dismantled and lifted out for cleaning, increasing labor costs and impacting production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a cleaning and recycling system for cutting fluid containing aluminum dross and aluminum chips, to solve the problem described in the background art where equipment generates a large amount of aluminum dross and aluminum chips during processing. Some fine aluminum dross flows into the water tank with the cutting fluid. Long-term accumulation leads to blockage of the auxiliary water pump, reduced water pressure, and equipment alarm shutdown. Because the water pump is installed in a compact location with a small slag removal hole, operation is inconvenient and cleaning is incomplete. Furthermore, the water pump needs to be dismantled and lifted out for cleaning, increasing labor costs and affecting production efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cutting fluid cleaning and recycling system containing aluminum slag and aluminum chips, comprising a main filtration mechanism, a secondary filtration mechanism, and a water pump. The main filtration mechanism includes a main water tank. Currently, cutting fluid is directly recycled by the pump after part processing. However, during the flow of the cutting fluid, some aluminum chips and filter residue generated on the surface of the parts due to processing are generated. These chips and residue can easily cause blockage during pump circulation, affecting the normal operation of the cutting fluid in the recycling system. A servo motor is installed on the outer wall of the main water tank. Openings are opened on both sides of the main water tank, and internal filter screens are fixedly connected to the openings. The secondary filtration mechanism is connected to the two outer sides of the main filtration mechanism. The water pump recycles the cutting fluid from the secondary filtration mechanism. A conveyor belt is fixedly connected to the output end of the servo motor, moving the water pump from its original position in the main water tank to the secondary water tank. Internal filters are installed at the openings of the main water tank and the side water tank. The double-layer filter screen, consisting of an inner and outer filter screen, reduces the content of aluminum slag and aluminum chips in the recovered cutting fluid, thereby reducing the failure rate of the water pump. A settling tank is set above the bottom wall of the main water tank. One end of the conveyor belt body is located above the settling tank, and the other end of the conveyor belt body is located at the bottom of the inner filter screen. An elastic ruler is fixedly connected to the outer wall of the inner filter screen. A driven roller group is driven by the conveyor belt body. A lever is fixedly connected to the outer wall of the driven roller group. The driven roller group vibrates by moving the elastic ruler through the lever. The conveyor belt body can transport the aluminum slag accumulated at the inner filter screen to another location. At the same time, the driven roller group is driven to run during the operation of the conveyor belt body. Every time the driven roller group rotates, it will move the elastic ruler once through the lever. The elastic ruler is made of elastic material and deforms after contacting the lever. When the deformation reaches a certain degree, it will cause the surface of the inner filter screen to vibrate, thereby shaking off the aluminum slag adhering to the surface of the inner filter screen.

[0007] Preferably, the inner wall of the main water tank is fixedly connected to a work platform via a frame. The work platform is used for processing parts, and the parts can be cut, die-cast, or formed on the work platform. The surface of the work platform is provided with channels for the flow of cutting fluid, so that as much cutting fluid as possible flows from the work platform to the main water tank for recycling.

[0008] Preferably, a recycling mechanism is provided on both outer sides of the workstation. The recycling mechanism includes a liquid storage chamber that stores the recycled cutting fluid. Positioning frames are installed at both ends of the liquid storage chamber. The positioning frames are positioned on the main water tank by screws. The position of the screws can be adjusted to change the position of the liquid storage chamber and thus change the position of the spray nozzle applying cutting fluid to the workstation.

[0009] Preferably, a positioning frame is fixedly connected to the outer wall of the liquid storage cavity, and the liquid storage cavity is fixedly connected to the outer wall of the main water tank through the positioning frame.

[0010] Preferably, the bottom end of the liquid storage chamber is connected to a spray nozzle, through which the liquid storage chamber sprays cutting fluid onto the worktable.

[0011] Preferably, the secondary filtration mechanism includes a side water tank, which is fixedly connected to the outer wall of the main water tank, and a secondary filter screen is fixedly connected to the inner wall of the side water tank.

[0012] Preferably, the water pump is connected to one end of the side water tank, and an external filter screen is installed at the other end of the side water tank. The external filter screen and the internal filter screen are located on both sides of the opening, respectively.

[0013] Preferably, the water pump and the liquid storage chamber are connected by a pipeline.

[0014] Preferably, it also includes a cutting fluid collection module, a cutting fluid recycling module, and a cutting fluid reuse module. The cutting fluid collection module is used to collect and filter the waste cutting fluid from the workstation. The cutting fluid recycling module provides the treated cutting fluid to the spray nozzle through a water pump. The cutting fluid reuse module sprays the cutting fluid onto the workstation through the spray nozzle.

[0015] Preferably, the cutting fluid recycling module includes a primary filtration module, a secondary filtration module, and an aluminum dross / chip separation module; the primary filtration module is located inside the main filtration mechanism and is used for preliminary filtration of aluminum dross / chips; the secondary filtration module is located inside the secondary filtration mechanism and is used for secondary filtration of the cutting fluid; the aluminum dross / chip separation module is located inside the main filtration mechanism and is used to clean the aluminum dross / chips accumulated on the inner filter screen.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, by adding a side water tank outside the main water tank of the cutting fluid recycling system, the original water pump position is moved from the main water tank to the side water tank. By setting a double-layer filter screen consisting of an inner filter screen and an outer filter screen at the opening of the main water tank and the side water tank, the content of aluminum slag and aluminum chips in the recycled cutting fluid is reduced. The amount of aluminum slag and aluminum chips sucked in by the water pump during use is also reduced accordingly, thereby reducing the failure rate of the water pump, reducing the number of cleaning and maintenance times and labor costs of cleaning the pump body, and improving production efficiency.

[0017] 2. In this invention, a servo motor is installed on the outside of the main water tank, and the servo motor drives the conveyor belt to run, so as to transport and clean the aluminum slag and aluminum chips accumulated on the inner filter screen in a timely manner, thereby avoiding clogging of the inner filter screen.

[0018] 3. In this invention, the transmission belt body and the driven roller group are linked by a synchronous pulley, so that the transmission belt body drives the driven roller group to rotate when it runs. Every time the driven roller group rotates once, it will move the elastic ruler once by the pawl. The elastic ruler is made of elastic material and deforms after contacting the pawl. When the deformation reaches a certain degree, it will cause the surface of the inner filter screen to vibrate, thereby shaking off the aluminum dross adhering to the surface of the inner filter screen, improving the cleaning effect of aluminum dross and aluminum chips on the inner filter screen, and further improving the cutting fluid exchange efficiency of the main water tank and the side water tank.

[0019] 4. In this invention, the positioning frame is connected by screws, which allows for flexible adjustment of the position of the positioning frame and the liquid storage chamber, thereby adjusting the spray position on the worktable so as to apply cutting fluid to parts with different shapes and ensure that the cutting fluid can be sprayed all over the surface of the parts. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the aluminum slag and aluminum chip cutting fluid cleaning and reuse system of the present invention. Figure 1 ; Figure 2 This is a three-dimensional structural diagram of the aluminum slag and aluminum chip cutting fluid cleaning and reuse system of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the main water tank in the aluminum slag and aluminum chip cutting fluid cleaning and reuse system of the present invention; Figure 4 This is a schematic diagram of the main filtration mechanism in the aluminum slag and aluminum chip cutting fluid cleaning and reuse system of the present invention; Figure 5 The working principle of the aluminum slag and aluminum chip cutting fluid cleaning and reuse system of the present invention. Figure 1 ; Figure 6 The working principle of the aluminum slag and aluminum chip cutting fluid cleaning and reuse system of the present invention. Figure 2 ; Figure 7 This is a system block diagram of the aluminum slag and aluminum chip cutting fluid cleaning and reuse system of the present invention.

[0021] In the diagram: 1. Workstation; 2. Recycling mechanism; 21. Liquid storage chamber; 22. Positioning frame; 23. Spray head; 3. Main filtration mechanism; 31. Main water tank; 32. Conveyor belt body; 33. Driven roller group; 330. Paddle; 34. Inner filter screen; 340. Flexible ruler; 35. Servo motor; 36. Settling tank; 4. Secondary filtration mechanism; 41. Side water tank; 42. Outer filter screen; 43. Secondary filter screen; 5. Water pump. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1: Refer to Figure 1-7 As shown: A cutting fluid cleaning and recycling system containing aluminum slag and aluminum chips includes a main filtration mechanism 3, a secondary filtration mechanism 4, and a water pump 5. The main filtration mechanism 3 includes a main water tank 31, with a servo motor 35 installed on the outer wall of the main water tank 31. Both sides of the main water tank 31 have openings, and an inner filter screen 34 is fixedly connected to the openings. The secondary filtration mechanism 4 is connected to the two outer sides of the main filtration mechanism 3. The water pump 5 circulates and recycles the cutting fluid in the secondary filtration mechanism 4. The output end of the servo motor 35 is fixedly connected to a conveyor belt body 32. A settling tank 36 is set above the bottom wall of the main water tank 31. One end of the conveyor belt body 32 is located above the settling tank 36, and the other end of the conveyor belt body 32 is located at the bottom of the inner filter screen 34. An elastic ruler 340 is fixedly connected to the outer wall of the inner filter screen 34. The conveyor belt body 32 is driven by a driven roller group 33. A paddle 330 is fixedly connected to the outer wall of the driven roller group 33. The driven roller group 33 vibrates by moving the elastic ruler 340 through the paddle 330.

[0024] The existing cutting fluid is directly recycled by the pump after the parts are machined. However, during the flow of the cutting fluid, some aluminum chips and filter residues generated on the surface of the parts due to the machining process can easily cause blockage when the pump is circulated, which can affect the normal operation of the cutting fluid in the return system. In this embodiment, two auxiliary water tanks are added outside the main water tank, and the water pump 5 is moved from its original position in the main water tank to the auxiliary water tanks. A double-layer filter screen consisting of an inner filter screen 34 and an outer filter screen 42 is installed at the opening of the main water tank 31 and the side water tank 41, thereby reducing the content of aluminum slag and aluminum chips in the recovered cutting fluid, reducing the failure rate of the water pump 5, and reducing the number of cleaning and maintenance times and time and labor costs of cleaning the pump body. The cutting fluid in the main water tank 31 flows from the inner filter screen 34 and the opening to the side water tank 41. When the liquid flows, it will also cause aluminum slag and aluminum chips to accumulate on the inner filter screen 34. After a large amount of aluminum chips and aluminum slag accumulate, it will affect the free exchange of cutting fluid in the main water tank 31 and the side water tank 41. A conveyor belt body 32 is provided at the bottom of the inner filter screen 34. The conveyor belt body 32 can transport the aluminum dross accumulated on the inner filter screen 34 to another location. At the same time, during the operation of the conveyor belt body 32, the driven roller group 33 is driven to run. Every time the driven roller group 33 rotates, it will push the elastic ruler 340 once through the paddle 330. The elastic ruler 340 is made of elastic material and deforms after contacting the paddle 330. When the deformation reaches a certain degree, it will cause the surface of the inner filter screen 34 to vibrate, thereby shaking off the aluminum dross adhering to the surface of the inner filter screen 34, improving the flow rate of the inner filter screen 34 and satisfying the filtration effect of the inner filter screen 34. After being shaken off from the inner filter screen 34, the aluminum dross falls onto the surface of the conveyor belt body 32 and is transported to the settling tank 36 by the conveyor belt body 32. Multiple through holes are opened on the surface of the settling tank 36. The aluminum dross and aluminum chips are stored in the settling tank 36. The cutting fluid adsorbed by the aluminum chips returns to the main water tank 31 for filtration.

[0025] Example 2: According to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a workbench 1 is fixedly connected to the inner wall of the main water tank 31 via a frame. A recycling mechanism 2 is installed on both outer sides of the workbench 1, and the recycling mechanism 2 includes a liquid storage chamber 21. A positioning frame 22 is fixedly connected to the outer wall of the liquid storage chamber 21, and the liquid storage chamber 21 is fixedly connected to the outer wall of the main water tank 31 via the positioning frame 22. A spray nozzle 23 is connected to the bottom end of the liquid storage chamber 21, and the liquid storage chamber 21 sprays cutting fluid onto the workbench 1 through the spray nozzle 23.

[0026] In this embodiment, the workstation 1 is used for processing parts. The parts can be cut, die-cast, and formed on the workstation 1. During the cutting process, the cutting fluid is sprayed using the recycling mechanism 2 set on both sides of the workstation 1. The recycled cutting fluid is stored in the storage chamber 21. Positioning frames 22 are installed at both ends of the storage chamber 21. The positioning frames 22 are positioned on the main water tank 31 by screws. The position of the screws can be adjusted to change the position of the storage chamber 21 and the position of the spray nozzle 23 applying cutting fluid to the workstation 1. The surface of the workstation 1 is provided with channels for the flow of cutting fluid, so that as much cutting fluid as possible flows from the workstation 1 to the main water tank 31 for recycling and treatment, avoiding the accumulation of cutting fluid on the workstation 1 and affecting normal part processing.

[0027] Example 3: According to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the secondary filtration mechanism 4 includes a side water tank 41, which is fixedly connected to the outer wall of the main water tank 31. A secondary filter screen 43 is fixedly connected to the inner wall of the side water tank 41. The water pump 5 is connected to one end of the side water tank 41, and an outer filter screen 42 is installed at the other end of the side water tank 41. The outer filter screen 42 and the inner filter screen 34 are located on both sides of the opening, respectively. The water pump 5 is connected to the liquid storage chamber 21 through a pipe.

[0028] In this embodiment, the side water tank 41 is installed at the two openings of the main water tank 31. The openings are separated by an inner filter screen 34 and an outer filter screen 42, so that after the cutting fluid enters the side water tank 41 from the main water tank 31, aluminum slag and aluminum chips are filtered by the inner filter screen 34, resulting in a smaller amount of aluminum chips and aluminum slag in the cutting fluid in the side water tank 41. At the same time, a secondary filter screen 43 is set in both side water tanks 41 for secondary filtration to remove smaller aluminum chips in the cutting fluid. The cutting fluid is recycled only after secondary treatment. The water pump 5 is connected to the secondary treated cutting fluid to ensure that the recycled cutting fluid is purer and contains fewer impurities.

[0029] Example 4: According to Figure 7 As shown, the aluminum slag and aluminum chip cutting fluid cleaning and recycling system also includes a cutting fluid collection module, a cutting fluid recycling module, and a cutting fluid reuse module. The cutting fluid collection module is used to collect and filter the waste cutting fluid from the workstation 1. The cutting fluid recycling module provides the treated cutting fluid to the spray nozzle 23 via a water pump 5. The cutting fluid reuse module sprays the cutting fluid onto the workstation 1 via the spray nozzle 23. The cutting fluid recycling module includes a primary filtration module, a secondary filtration module, and an aluminum slag and aluminum chip separation module. The primary filtration module is located inside the main filtration mechanism 3 and is used for preliminary filtration of aluminum slag and aluminum chips. The secondary filtration module is located inside the secondary filtration mechanism 4 and is used for secondary filtration of the cutting fluid. The aluminum slag and aluminum chip separation module is located inside the main filtration mechanism 3 and is used to clean the aluminum slag and aluminum chips accumulated on the inner filter screen 34.

[0030] The method of use and working principle of this device: First, the cutting fluid is collected in the storage chamber 21. The cutting fluid is sprayed out in the form of water mist using the spray nozzle 23 and combines with the parts on the worktable 1 to form a water film on the processed parts. This cools and de-temperatures the parts and lubricates the surface of the parts, making it easier for them to be removed from the mold. After the cutting fluid accumulates on the part, it forms a water flow that carries aluminum dross and aluminum chips into the main water tank 31. After the cutting fluid accumulates to a certain capacity in the main water tank 31, the excess cutting fluid flows out from the outlet and carries the aluminum dross and aluminum chips to accumulate on the inner filter screen 34. Then, the servo motor 35 on the outside of the main water tank 31 is activated, and the servo motor 35 drives the conveyor belt body 32 to run, so that the conveyor belt body 32 transports the accumulated aluminum dross and aluminum chips outward from the lower end of the inner filter screen 34 until it moves to the settling tank 36, so that the aluminum dross and aluminum chips can filter out excess cutting fluid in the settling tank 36. Meanwhile, during the operation of the conveyor belt body 32, the driven roller group 33 is driven to run. Every time the driven roller group 33 rotates once, it will push the elastic ruler 340 once through the paddle 330. The elastic ruler 340 is made of elastic material and deforms after contacting the paddle 330. When the deformation reaches a certain level, it will cause the surface of the inner filter screen 34 to vibrate, thereby shaking off the aluminum dross adhering to the surface of the inner filter screen 34. After the cutting fluid enters the side water tank 41 from the main water tank 31, it is filtered for a second time using a secondary filter screen 43 to remove smaller aluminum chips from the cutting fluid. The cutting fluid is then recycled after secondary treatment. The water pump 5 transports the finally treated cutting fluid back to the storage chamber 21 for reuse.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cleaning and recycling system for cutting fluid containing aluminum slag and aluminum chips, comprising a main filtration unit (3), a secondary filtration unit (4), and a water pump (5), characterized in that: The main filtration mechanism (3) includes a main water tank (31), a servo motor (35) is provided on the outer wall of the main water tank (31), and openings are provided on both sides of the main water tank (31), with an inner filter screen (34) fixedly connected at the opening. The secondary filtration mechanism (4) is connected to the two outer sides of the main filtration mechanism (3). The water pump (5) circulates the cutting fluid in the secondary filtration mechanism (4) for reuse. The output end of the servo motor (35) is fixedly connected to a conveyor belt body (32). A servo motor is provided on the upper part of the inner bottom wall of the main water tank (31). There is a settling tank (36), one end of the conveyor belt body (32) is located above the settling tank (36), and the other end of the conveyor belt body (32) is located at the bottom of the inner filter screen (34). An elastic ruler (340) is fixedly connected to the outer wall of the inner filter screen (34). The conveyor belt body (32) is driven by a driven roller group (33). A paddle (330) is fixedly connected to the outer wall of the driven roller group (33). The driven roller group (33) vibrates by moving the elastic ruler (340) through the paddle (330).

2. The aluminum slag and aluminum chip cutting fluid cleaning and reuse system according to claim 1, characterized in that: The inner wall of the main water tank (31) is fixedly connected to the work platform (1) via a frame.

3. The aluminum slag and aluminum chip cutting fluid cleaning and reuse system according to claim 2, characterized in that: The workstation (1) is provided with a recycling mechanism (2) on both sides, and the recycling mechanism (2) includes a liquid storage chamber (21).

4. The aluminum slag and aluminum chip cutting fluid cleaning and reuse system according to claim 3, characterized in that: The outer wall of the liquid storage chamber (21) is fixedly connected to a positioning frame (22), and the liquid storage chamber (21) is fixedly connected to the outer wall of the main water tank (31) through the positioning frame (22).

5. The aluminum slag and aluminum chip cutting fluid cleaning and reuse system according to claim 4, characterized in that: The bottom end of the liquid storage chamber (21) is connected to a spray nozzle (23), through which the liquid storage chamber (21) sprays cutting fluid onto the worktable (1).

6. The aluminum slag and aluminum chip cutting fluid cleaning and reuse system according to claim 1, characterized in that: The secondary filtration mechanism (4) includes a side water tank (41), which is fixedly connected to the outer wall of the main water tank (31), and a secondary filter screen (43) is fixedly connected to the inner wall of the side water tank (41).

7. The aluminum slag and aluminum chip cutting fluid cleaning and reuse system according to claim 6, characterized in that: The water pump (5) is connected to one end of the side water tank (41), and an external filter screen (42) is installed at the other end of the side water tank (41). The external filter screen (42) and the internal filter screen (34) are located on both sides of the opening.

8. The aluminum slag and aluminum chip cutting fluid cleaning and reuse system according to claim 3, characterized in that: The water pump (5) is connected to the liquid storage chamber (21) via a pipe.

9. The aluminum slag and aluminum chip cutting fluid cleaning and reuse system according to claim 5, characterized in that: It also includes a cutting fluid collection module, a cutting fluid recycling module and a cutting fluid reuse module. The cutting fluid collection module is used to collect and filter the waste cutting fluid from the workstation (1). The cutting fluid recycling module provides the treated cutting fluid to the spray nozzle (23) through a water pump (5). The cutting fluid reuse module sprays the cutting fluid onto the workstation (1) through the spray nozzle (23).

10. The aluminum slag and aluminum chip cutting fluid cleaning and reuse system according to claim 9, characterized in that: The cutting fluid recycling module includes a primary filtration module, a secondary filtration module, and an aluminum slag and aluminum chip separation module. The primary filtration module is located inside the main filtration mechanism (3) and is used for preliminary filtration of aluminum slag and aluminum chips. The secondary filtration module is located inside the secondary filtration mechanism (4) and is used for secondary filtration of the cutting fluid. The aluminum slag and aluminum chip separation module is located inside the main filtration mechanism (3) and is used to clean the aluminum slag and aluminum chips accumulated on the inner filter screen (34).

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