A cutting fluid purification system

Abstract

The utility model relates to cutting fluid purification treatment equipment technical field, concretely relates to a cutting fluid purification system. Cutting fluid purification system includes the filter equipment, centrifugal device and recovery device that communicate in proper order. The filter equipment includes liquid suction tank and filter box, and the filter box is installed with the baffle that divides filter box into cavity one and cavity two. Cavity one communicates the liquid outlet no. 1 of liquid suction tank. The baffle includes the oblique section that is set up to the right upper direction along the horizontal direction, and the oblique section is sequentially provided with multiple groups of filter assembly from left to right. Each group of filter assembly includes filter plate and at least one filter cylinder, and the filter cylinder is vertically installed in cavity one and its bottom communicates cavity two. The filter plate is installed in cavity two and the junction of filter plate and oblique section is located at the left side of filter cylinder. The recovery device is used for collecting cutting fluid, dirty oil and waste residue after centrifugation respectively. The utility model realizes multiple filtration to waste cutting fluid through the synergies of liquid suction tank and filter box, improves its filtration effect.

Description

Technical Field

[0001] This utility model relates to the technical field of cutting fluid purification equipment, and specifically to a cutting fluid purification system. Background Technology

[0002] Cutting fluid is an industrial liquid used in metal cutting and grinding processes to cool and lubricate cutting tools and workpieces. It is scientifically formulated with a variety of high-performance additives, possessing excellent cooling, lubrication, rust prevention, degreasing and cleaning properties, corrosion resistance, and easy dilution. It overcomes the shortcomings of traditional soap-based emulsions, such as odor in summer, difficulty in dilution in winter, and poor rust prevention. It also has no adverse effects on lathe paint and is suitable for cutting and grinding ferrous metals. It is currently the most advanced grinding product, with all its performance indicators superior to saponified oils. It features excellent cooling, cleaning, and rust prevention properties, and is non-toxic, odorless, non-corrosive to humans and equipment, and environmentally friendly. As people's understanding of cutting fluids continues to improve and their practical experience continues to grow, it has been discovered that injecting oil into the cutting area can achieve a good machined surface. Initially, people used animal and vegetable oils as cutting fluids, but these oils are prone to deterioration and have a short service life. Therefore, people began to refine lubricating oils from crude oil and invented various high-performance lubricating oil additives. Currently, water-based cutting fluids can be divided into emulsions, semi-synthetic cutting fluids, and fully synthetic cutting fluids.

[0003] Because cutting fluid is relatively expensive and contains a large amount of metal shavings and other impurities after long-term use, it is necessary to purify waste cutting fluid. Existing cutting fluid purification devices, due to their poor filtration efficiency, leave residual impurities such as iron filings and dust in the purified cutting fluid, preventing it from meeting the requirements for recycling and reuse. Utility Model Content

[0004] To address the technical problem that existing cutting fluid purification systems have poor filtration performance, resulting in the presence of impurities such as iron filings and dust in the purified cutting fluid, thus preventing the purified cutting fluid from meeting the requirements for recycling and reuse, this utility model provides a cutting fluid purification system.

[0005] This utility model adopts the following technical solution: a cutting fluid purification system, comprising a filtration device, a centrifuge device, and a recovery device. The filtration device includes a suction tank and a filter box. The suction tank is used to adsorb the waste cutting fluid to be treated and perform preliminary filtration. A partition is installed in the upper left of the filter box, dividing the filter box into a first chamber and a second chamber. The first chamber is connected to the outlet of the suction tank. The partition includes an inclined section that is horizontally inclined to the upper right. Multiple sets of filter components are arranged sequentially from left to right on the inclined section. Each set of filter components includes a filter plate and at least one filter cylinder. The filter cylinder is vertically installed in the first chamber and its bottom is connected to the second chamber. The filter plate is installed in the second chamber, and the connection between the filter plate and the inclined section is located on the left side of the filter cylinder. The filter plate is used to further filter the waste cutting fluid filtered by the filter cylinder. The inlet end of the centrifuge device is connected to the outlet end of the filter box, and the outlet end of the centrifuge device is connected to the inlet end of the recovery device. The centrifuge device is used to separate the waste cutting fluid filtered by the filter plate into waste residue, recyclable cutting fluid, and sludge. The recovery device includes a cutting fluid recovery tank, a waste oil recovery tank, and a waste residue recovery tank, all connected to the centrifuge unit. The cutting fluid recovery tank is used to collect the cutting fluid after centrifugation, the waste oil recovery tank is used to collect the waste oil after centrifugation, and the waste residue recovery tank is used to collect the waste residue after centrifugation.

[0006] As a further improvement of this utility model, the partition also includes a vertical section and a horizontal section. The vertical section extends downward from the top of the filter box. One end of the inclined section is connected to the end of the vertical section, and the other end of the inclined section slopes downward to the left and connects to the horizontal section. The end of the horizontal section away from the inclined section is fixedly connected to the left inner wall of the filter box. The filter cylinders of the multiple filter assemblies are sequentially installed on the inclined section along the horizontal direction.

[0007] In a typical technical solution of this utility model, each filter assembly includes multiple filter cylinders, which are arranged side by side along the front and rear direction of the filter box.

[0008] As a further improvement of this utility model, one end of the filter plate is fixed to the bottom of the inclined section and is located on the left side of the filter cylinder in the vertical direction, while the other end of the filter plate is inclined downward.

[0009] As a further improvement of this utility model, the diameter of the filter holes on the filter plate is smaller than the diameter of the filter holes on the filter cylinder.

[0010] In a typical technical solution of this utility model, a baffle is vertically downward at the top of the suction box. The baffle is used to divide the suction box into a left cavity and a right cavity that are interconnected at the bottom. A second inlet is provided on the top of the suction box near the left cavity. At least one filter basket is installed in the left cavity. One end of the filter basket is fixedly installed on the left side wall of the suction box, and the other end of the filter basket is fixedly installed on the baffle. The opening of the filter basket is aligned with the second inlet.

[0011] As a further improvement of this utility model, the liquid suction box also includes a vacuum suction device, which is connected to the right cavity and is used to suction air from the right cavity.

[0012] As a further improvement of this utility model, filter holes are provided below the connection between the baffle and the filter basket, and the filter holes are respectively connected to the left cavity and the right cavity.

[0013] As a further improvement of this utility model, the number of filter baskets can be multiple, and multiple filter baskets are arranged sequentially in the left cavity along the vertical direction.

[0014] As a further improvement of this utility model, an overflow port is provided on the side wall of the cutting fluid recovery tank near the top, and the liquid overflowing from the cutting fluid recovery tank is transported to the suction tank through the overflow port.

[0015] The technical solution provided by this utility model has the following beneficial effects:

[0016] (1) The cutting fluid purification system provided by this utility model includes a suction tank and a filter tank. The suction tank is used to perform preliminary filtration on the suctioned waste cutting fluid to be treated. The waste cutting fluid after preliminary filtration can be filtered a second time through the filter cylinder in the filter tank, and then filtered a third time through the filter plate. This achieves multiple filtrations of the waste cutting fluid, improving its filtration effect. In addition, the centrifugal device in the cutting fluid purification system can separate the cutting fluid, sludge, and waste residue in the waste cutting fluid after multiple filtrations under the action of centrifugal force, further improving the purification effect of the cutting fluid system on the waste cutting fluid.

[0017] (2) The cutting fluid purification system provided by this utility model sets multiple sets of filter components on the inclined section, so that the bottom of the multiple sets of filter components increases sequentially from left to right in the vertical direction. This setting allows the multiple sets of filter components to automatically start different numbers of filter components to filter the waste cutting fluid in the cavity according to the position of the liquid level in the cavity, thereby effectively ensuring the filtration speed of the filter box. Attached Figure Description

[0018] Figure 1 A flowchart of the cutting fluid purification system provided by this utility model.

[0019] Figure 2 A flow chart of the cutting fluid purification system provided by this utility model.

[0020] Figure 3 This is a schematic diagram of the internal structure of the liquid suction box and the filter box when they are connected.

[0021] Figure 4 This is a schematic diagram of the internal structure of the filter box provided by this utility model.

[0022] Figure 5 This is a schematic diagram of the internal structure of the liquid suction box provided by this utility model.

[0023] The following are marked in the diagram: 11. Liquid suction box; 111. Baffle; 112. Left cavity; 113. Right cavity; 114. Liquid inlet 2; 115. Vacuum suction device; 116. Filter basket; 12. Filter box; 121. Cavity 1; 122. Cavity 2; 123. Filter cylinder; 124. Filter plate; 13. Partition; 131. Inclined section; 132. Vertical section; 133. Horizontal section; 2. Centrifuge device; 31. Cutting fluid recovery box; 32. Sludge recovery box; 33. Waste residue recovery box. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0025] This embodiment provides a cutting fluid purification system, such as Figures 1 to 3 As shown, it includes a filtration device, a centrifuge device 2, and a recovery device. The filtration device includes a suction tank 11 and a filter tank 12. The suction tank 11 is used to absorb the waste cutting fluid to be treated and perform preliminary filtration. The outlet of the suction tank 11 is connected to the inlet of the filter tank 12. The waste cutting fluid after preliminary filtration by the suction tank 11 can be transported to the filter tank 12 for further filtration. The inlet of the centrifuge device 2 is connected to the outlet of the filter tank 12. The centrifuge device 2 is used to filter the waste cutting fluid after filtration by the filter tank 12. After centrifugation by the centrifuge device 2, the waste cutting fluid can be separated into waste residue, recyclable cutting fluid, and sludge. The centrifuge device 2 can be a common centrifuge device 2 in the prior art. Therefore, the specific structure of the centrifuge device 2 will not be described in detail in this embodiment. The recovery device includes a cutting fluid recovery tank 31, a sludge recovery tank 32, and a waste residue recovery tank 33. The inlet of the cutting fluid recovery tank 31 is connected to one of the outlets of the centrifuge device 2. The waste cutting fluid separated after centrifugation in the centrifuge device 2 enters the cutting fluid recovery tank 31 through this outlet. The inlet of the sludge recovery tank 32 is connected to the other outlet of the centrifuge device 2. The sludge separated after centrifugation in the waste cutting fluid enters the sludge recovery tank 32 through this outlet. The inlet of the waste residue recovery tank 33 is connected to the outlet of the centrifuge device 2. The waste residue separated after centrifugation in the waste cutting fluid enters the waste residue recovery tank 33 through the outlet. The centrifuge device 2 can separate the cutting fluid, sludge, and waste residue in the waste cutting fluid after multiple filtrations using centrifugal force, further improving the purification effect of the cutting fluid purification system on the waste cutting fluid.

[0026] Please refer to Figure 1 The cutting fluid recovery tank 31 has an overflow port on its side wall, located near the top of the tank. When the liquid in the cutting fluid recovery tank 31 rises to the overflow port, the liquid on the upper surface of the tank can flow back into the suction tank 11 through the overflow port. In this embodiment, since the density of oil is less than that of cutting fluid, the oil in the cutting fluid will float to the surface. By providing the overflow port, the floating oil in the cutting fluid temporarily stored in the cutting fluid recovery tank 31 can be transported back to the suction tank 11 for recirculation and filtration, thereby improving the purification effect of the entire cutting fluid purification system.

[0027] Please refer to Figure 3 and Figure 4 A partition 13 is installed inside the filter box 12, located in the upper left corner. The partition 13 divides the filter box 12 into two chambers: chamber one 121 and chamber two 122. The inlet end of the filter box 12 is connected to chamber one 121, allowing waste cutting fluid, after preliminary filtration by the suction tank 11, to enter chamber one 121 through the inlet end. The partition 13 includes a vertical section 132, an inclined section 131, and a horizontal section 133. The vertical section 132 extends vertically downward from the top of the filter box 12, with a gap between it and the bottom of the filter box 12. One end of the inclined section 131 is fixedly connected to the end of the vertical section 132, and the other end of the inclined section 131 is inclined downward to the left and connected to one end of the horizontal section 133. The other end of the horizontal section 133 is fixedly connected to the left inner wall of the filter box 12. The horizontal section 133 is lower in the vertical direction than the end of the vertical section 132. The inclined section 131 is provided with multiple sets of filter components from left to right. Each set of filter components includes a filter plate 124 and at least one filter cylinder 123. The filter cylinder 123 is vertically installed in the first cavity 121 and its bottom is connected to the second cavity 122. The filter plate 124 is installed in the second cavity 122 and the connection between the filter plate 124 and the inclined section 131 is located on the left side of the filter cylinder 123. The filter plate 124 is used to further filter the waste cutting fluid that has been filtered by the filter cylinder 123 and enters the second cavity 122.

[0028] In this embodiment, since multiple filter components are arranged sequentially along the inclined section 131, when the amount of waste cutting fluid entering the cavity 121 is small, causing its liquid level to be lower than the bottom of the filter cylinder 123 in the second filter component, only one filter component will filter the waste cutting fluid in the cavity 121. When the amount of waste cutting fluid in the cavity 121 is large, the liquid level will rise, allowing the next set, or even multiple sets, of filter components on the inclined section 131 to filter the waste cutting fluid in the cavity 121. Therefore, in this embodiment, by arranging multiple filter components on the inclined section 131, the filter box 12 can automatically activate different numbers of filter components according to the amount of liquid entering the cavity 121. This ensures the filtration speed of the filter box 12 without abusing the filter components, thereby improving the service life of the filter components and reducing the cleaning load on the filter components later. Furthermore, in this embodiment, the suction box 11 can not only suction the waste cutting fluid to be treated, but also perform a preliminary filtration of the suctioned waste cutting fluid, trapping larger particles of impurities in the waste cutting fluid. This also prevents larger impurities in the waste cutting fluid from clogging the filter holes of the filter cartridge 123 and the filter plate 124, thereby extending the filtration time of the filter assembly and reducing the cleaning frequency of the filter assembly. The filter cartridge 123 in the filter assembly can perform secondary filtration of the waste cutting fluid entering the first cavity 121, and the waste cutting fluid after secondary filtration can flow into the second cavity 122 through the filter cartridge 123, and undergo a third filtration along the filter plate 124 installed in the second cavity 122. Therefore, in this embodiment, through the synergistic effect of the suction tank 11 and the filter assembly, the waste cutting fluid to be treated can be filtered three times. Through multiple filtrations, the filtration effect of the entire cutting fluid purification system can be greatly improved. In addition, with the centrifuge device 2 and the cutting fluid recovery tank 31, the centrifuge device 2 can separate the cutting fluid, sludge, and waste residue in the waste cutting fluid after three filtrations by centrifugation. The separated cutting fluid can also be separated by sedimentation in the cutting fluid recovery tank 31. Thus, the cutting fluid purification system provided in this embodiment can effectively separate impurities and sludge in the waste cutting fluid, so that the separated cutting fluid can be recycled and reused.

[0029] In this embodiment, each filter assembly includes multiple filter cartridges 123, which are arranged side-by-side along the front-back direction of the filter box 12. By using multiple filter cartridges 123 in each filter assembly, the filtration speed of each filter assembly can be increased. Simultaneously, the side-by-side arrangement of multiple filter cartridges 123 along the front-back direction of the filter box 12 allows the waste cutting fluid filtered by the multiple filter cartridges 123 in each filter assembly to flow into the cavity 122 and undergo a third filtration along the filter plate 124 of the filter assembly. This enables each filter assembly to perform a third filtration of the waste cutting fluid filtered by multiple filter cartridges 123 through a single filter plate 124, thus simplifying the structure of the filter assembly while maintaining the required filtration speed.

[0030] Please refer to Figure 3 and Figure 4 One end of the filter plate 124 is fixed to the bottom of the inclined section 131 and is located on the left side of the filter cylinder 123 in the vertical direction, while the other end of the filter plate 124 is inclined downwards. By placing the filter plate 124 in each filter assembly on the left side of the filter cylinder 123, all the waste cutting fluid filtered by the filter cylinder 123 can flow onto the filter plate 124 for a third filtration. This achieves thorough and effective filtration of the waste cutting fluid entering the filter box 12 through the cooperation of the filter cylinder 123 and the filter plate 124. In this embodiment, by setting the filter plate 124 to be inclined downwards to the right, the filtration time of the waste cutting fluid filtered by the filter cylinder 123 on the filter plate 124 can be extended, thereby improving the filtration effect of the filter plate 124.

[0031] The pore size of the filter plate 124 can be smaller than that of the filter cylinder 123, so that the filter plate 124 can trap impurities with smaller diameters in the waste cutting fluid, thereby improving the filtration effect of the filter box 12.

[0032] Please refer to Figure 1 and Figure 5The suction box 11 can be a hollow cuboid structure. A baffle 111 can be vertically mounted on the top of the suction box 11, with a gap between the bottom of the baffle 111 and the bottom of the suction box 11. The baffle 111 divides the suction box 11 into a left cavity 112 and a right cavity 113, which are interconnected at their bottoms. A second inlet 114 is located on the top plate of the suction box 11 near the left cavity 112. The second inlet 114 is connected to the left cavity 112 and can be fitted with a suction hose. Waste cutting fluid to be treated can be drawn into the left cavity 112 through the suction hose. The suction box 11 also includes a vacuum suction device 115, which is connected to the right cavity 113. The vacuum suction device 115 can create a negative pressure environment within the entire suction box 11 by suctioning the right cavity 113. By setting up a vacuum suction device 115, a negative pressure environment is created inside the suction tank 11. Under this negative pressure, the waste cutting fluid to be treated can be drawn into the left cavity 112 through the suction hose. Furthermore, in this embodiment, the suction tank 11 has its inlet 114 and the vacuum suction device 115 located in different cavities. This ensures that when the vacuum suction device 115 is suctioning from the suction tank 11, the waste cutting fluid entering through the inlet 114 is prevented from entering the vacuum suction device 115 by the baffle 111, thus protecting the vacuum suction device 115.

[0033] Please refer to Figure 3 and Figure 5 At least one filter basket 116 is installed inside the left cavity 112. One end of the filter basket 116 is fixedly installed on the partition 13, and the other end of the filter basket 116 is fixedly installed on the left inner wall of the suction box 11. The opening of the filter basket 116 is aligned with the second liquid inlet 114. The filter basket 116 is used to perform preliminary filtration of the waste cutting fluid sucked in through the second liquid inlet 114, so that the suction box 11 can not only perform liquid suction operation, but also perform preliminary filtration of the sucked-in waste cutting fluid.

[0034] Multiple filter baskets 116 can be arranged vertically within the left cavity 112. In this embodiment, two filter baskets 116 are preferred. A filter hole is provided below the connection between the baffle 111 and the uppermost filter basket 116, and the filter hole connects to the left cavity 112 and the right cavity 113 respectively. By providing a filter hole below the connection between the uppermost filter basket 116 and the baffle 111, the left cavity 112 and the right cavity 113 above the filter basket 116 are vertically separated by a solid baffle 111. This effectively prevents waste cutting fluid entering through the inlet 114 from passing through the baffle 111 and entering the vacuum suction device 115, thus protecting the vacuum suction device 115. Furthermore, by providing filter holes below the connection between the baffle 111 and the uppermost filter basket 116, sufficient communication space is provided at the bottom of the left cavity 112 and the right cavity 113. This allows the vacuum suction device 115 to quickly suction air from the left cavity 112 while suctioning the right cavity 113, thereby increasing the suction speed of the vacuum suction device 115 over the entire suction tank 11 and reducing the suction load on the vacuum suction device 115. In this embodiment, the vacuum suction device 115 can be a vacuum pump.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cutting fluid purification system, characterized in that, It includes: The filtration device includes a suction tank (11) and a filter tank (12). The suction tank (11) is used to absorb the waste cutting fluid to be treated and perform preliminary filtration on it. A partition (13) is installed in the upper left of the filter tank (12) to divide the filter tank (12) into a cavity one (121) and a cavity two (122). The cavity one (121) is connected to the liquid outlet one of the suction tank (11). The partition (13) includes an inclined section (131) that is inclined to the upper right in the horizontal direction. The inclined section (131) extends from the left... Multiple sets of filter components are arranged sequentially from right to left. Each set of filter components includes a filter plate (124) and at least one filter cylinder (123). The filter cylinder (123) is vertically installed in the first cavity (121) and its bottom is connected to the second cavity (122). The filter plate (124) is installed in the second cavity (122) and the connection between the filter plate (124) and the inclined section (131) is located on the left side of the filter cylinder (123). The filter plate (124) is used to filter the waste cutting fluid after the filter cylinder (123) is filtered again. The centrifuge device (2) has its inlet end connected to the outlet end of the filter box (12) and its outlet end connected to the inlet end of the recovery device; the centrifuge device (2) is used to separate the waste cutting fluid filtered by the filter plate (124) into waste residue, recyclable cutting fluid and sludge oil. The recovery device includes a cutting fluid recovery tank (31), a sludge recovery tank (32), and a waste residue recovery tank (33) that are respectively connected to the centrifuge device (2); the cutting fluid recovery tank (31) is used to collect the cutting fluid after centrifugation by the centrifuge device (2); the sludge recovery tank (32) is used to collect the sludge after centrifugation by the centrifuge device (2); and the waste residue recovery tank (33) is used to collect the waste residue after centrifugation by the centrifuge device (2).

2. The cutting fluid purification system as described in claim 1, characterized in that, The partition (13) further includes a vertical section (132) and a horizontal section (133). The vertical section (132) extends downward from the top of the filter box (12). One end of the inclined section (131) is connected to the end of the vertical section (132). The other end of the inclined section (131) is inclined to the lower left and connected to the horizontal section (133). The end of the horizontal section (133) away from the inclined section (131) is fixedly connected to the left inner wall of the filter box (12).

3. The cutting fluid purification system as described in claim 2, characterized in that, Each of the filter components includes multiple filter cartridges (123), which are arranged side by side along the front and back direction of the filter box (12).

4. The cutting fluid purification system as described in claim 2, characterized in that, One end of the filter plate (124) is fixed to the bottom of the inclined section (131) and is located on the left side of the filter cylinder (123) in the vertical direction, while the other end of the filter plate (124) is inclined downward.

5. The cutting fluid purification system as described in claim 1, characterized in that, The aperture of the filter holes on the filter plate (124) is smaller than the aperture of the filter holes on the filter cylinder (123).

6. The cutting fluid purification system as described in claim 1, characterized in that, A baffle (111) is vertically downward at the top of the suction box (11). The baffle (111) is used to divide the suction box (11) into a left cavity (112) and a right cavity (113) that are interconnected at the bottom. A second inlet (114) is provided on the top of the suction box (11) near the left cavity (112). At least one filter basket (116) is installed in the left cavity (112). One end of the filter basket (116) is fixedly installed on the left side wall of the suction box (11), and the other end of the filter basket (116) is fixedly installed on the baffle (111). The opening of the filter basket (116) is aligned with the second inlet (114).

7. The cutting fluid purification system as described in claim 6, characterized in that, The liquid suction box (11) also includes a vacuum suction device (115), which is connected to the right cavity (113) and is used to suction the air in the right cavity (113).

8. The cutting fluid purification system as described in claim 6, characterized in that, The baffle (111) is provided with filter holes below the connection point with the filter basket (116), and the filter holes are respectively connected to the left cavity (112) and the right cavity (113).

9. The cutting fluid purification system as described in claim 6, characterized in that, The number of filter baskets (116) can be multiple, and multiple filter baskets (116) are arranged sequentially in the vertical direction within the left cavity (112).

10. The cutting fluid purification system as described in claim 1, characterized in that, An overflow port is provided on the side wall of the cutting fluid recovery tank (31) near the top, and the liquid overflowing from the cutting fluid recovery tank (31) is transported to the liquid suction tank (11) through the overflow port.

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