Low-temperature evaporation and concentration equipment for waste cutting fluid

Abstract

The utility model relates to the technical field of evaporation and concentration equipment, in particular to low-temperature evaporation and concentration equipment for waste cutting fluid, which comprises a mounting seat, a support plate arranged at the top of the mounting seat, a distillation kettle arranged on the side wall of the support plate and used for distilling the waste fluid, and a coil pipe arranged inside the distillation kettle. An evaporator used for collecting water vapor is further arranged on the side wall of the supporting plate, the exterior of the distillation still is communicated with a gas conveying pipe, one end of the gas conveying pipe is communicated with one end of the evaporator, and impurities contained in the cutting fluid waste liquid can be filtered through a filtering plate in the filtering box; then, in order to prevent filtering holes in a filtering plate from being blocked, a driving motor drives a rotating rod to rotate, meanwhile, a protruding block outside the rotating rod can also rotate, the filtering plate is extruded in a reciprocating mode, the filtering plate can be in a vibration state all the time under the action of a spring telescopic rod, and therefore the filtering effect is improved. The filtering holes in the filtering plate are effectively prevented from being blocked.

Description

Technical Field

[0001] This utility model relates to the technical field of evaporation and concentration equipment, specifically to a low-temperature evaporation and concentration equipment for cutting fluid waste. Background Technology

[0002] In machining equipment, cutting fluid is used as an auxiliary material to ensure product quality and extend the service life of cutting tools. Cutting fluid is made by rationally configuring emulsion and water in a certain proportion. Generally, cutting fluid is recycled after simple treatment. However, cutting fluid that has reached the end of its service life is called waste cutting fluid. Waste cutting fluid needs to be treated to remove particulate matter, floating oil, COD and other pollutants. The concentrated liquid filtered out is stored and recycled, and the filtered water is reused or discharged.

[0003] Chinese Patent Publication No. CN215440034U discloses a wastewater concentration, evaporation, and discharge device, including an operating chamber and a motor mounted above the operating chamber. The top center of the operating chamber is fixedly connected to the motor via a fixing block. One end of the motor's output shaft is fixedly connected to a rotating rod via a coupling. Rotating plates are fixedly connected to both sides of the outer surface of the rotating rod, inside the operating chamber. A cleaning plate adapted to the inner wall of the operating chamber is fixedly connected to the bottom of the rotating plate near the inner wall of the operating chamber. This utility model relates to the field of wastewater concentration, evaporation, and discharge technology. This wastewater concentration, evaporation, and discharge device, through the motor, allows the cleaning plates and cleaning sleeves to simultaneously clean the inner wall of the operating chamber and the heating rods, effectively removing dirt generated during operation, enhancing cleaning efficiency and heating effect, thereby improving evaporation efficiency, extending the device's service life, and further enhancing its practicality.

[0004] The device works by injecting wastewater into an operating tank, then concentrating and evaporating the wastewater before finally discharging it. However, the wastewater contains suspended solids and large particulate impurities, and injecting these contaminants directly into the operating tank can easily affect the concentration and evaporation of the wastewater. Utility Model Content

[0005] To address the aforementioned issues, a low-temperature evaporation and concentration device for cutting fluid waste is provided. This device utilizes a filter plate inside a filter box to filter impurities contained within the cutting fluid waste, preventing these impurities from affecting subsequent concentration and evaporation. Furthermore, to prevent clogging of the filter pores inside the filter plate, a drive motor rotates a rotating rod, simultaneously causing external protrusions on the rotating rod to rotate, thus repeatedly squeezing the filter plate. Under the action of a spring-loaded telescopic rod, the filter plate remains in a state of vibration, effectively preventing clogging of the filter pores inside the filter plate.

[0006] To address the problems of existing technologies, this utility model provides a low-temperature evaporation and concentration device for cutting fluid waste, including a mounting base. A support plate is provided on the top of the mounting base, and a distillation vessel for distilling the waste fluid is provided on the side wall of the support plate. A disc-shaped tube is provided inside the distillation vessel, and an evaporator for collecting water vapor is also provided on the side wall of the support plate. A gas supply pipe is connected to the outside of the distillation vessel, with one end of the gas supply pipe connected to one end of the evaporator. A water storage tank is provided on the top of the mounting base, and a water supply pipe is connected inside the water storage tank, with one end of the water supply pipe connected to the other end of the evaporator. A filter assembly for filtering impurities from the waste fluid is provided on the top of the distillation vessel.

[0007] Preferably, the filtration assembly includes a filter box disposed on top of the distillation kettle, a filter plate for filtering impurities is movably disposed inside the filter box, a connecting pipe is connected to the bottom of the filter box, one end of the connecting pipe is connected to the inside of the distillation kettle, and a solenoid valve is disposed inside the connecting pipe.

[0008] Preferably, mounting blocks are provided on both inner walls of the filter box, and spring telescopic rods are provided on both top sides of the mounting blocks. The telescopic ends of the spring telescopic rods are connected to the bottom of the filter plate. A drive motor is provided on the outer wall of the filter box, and a rotating rod is provided on the output shaft of the drive motor through a coupling. One end of the rotating rod is rotatably connected to the inner wall of the filter box, and a protrusion for pressing the filter plate is provided on the outside of the rotating rod.

[0009] Preferably, a compressor and a condenser are respectively provided on the top of the mounting base. The output end of the compressor is connected to one end of the disc tube through a pipe, and the input end of the condenser is connected to the other end of the disc tube through a pipe. The output end of the condenser is connected to a return pipe, and the other end of the return pipe is connected to the inside of the evaporator. The input end of the compressor is also connected to the inside of the evaporator.

[0010] Preferably, the reflux pipe is equipped with an expansion valve for cooling.

[0011] Preferably, the top of the distillation vessel is equipped with a vacuum pump for generating negative pressure.

[0012] Preferably, the top of the mounting base is provided with a drain pump for discharging the concentrate, and the input end of the drain pump is connected to the bottom of the distillation vessel through a pipe.

[0013] Preferably, the top of the mounting base is provided with a drain pump for draining water from the inside of the water storage tank, and the input end of the drain pump is connected to the inside of the water storage tank through a pipe.

[0014] Preferably, the top of the filter box is connected to an inlet hopper for easy liquid intake.

[0015] Preferably, the front end of the filter box is provided with a rotating door for easy cleaning of the filter plate.

[0016] The advantages of this utility model compared to the prior art are:

[0017] 1. The filter plate inside the filter box can filter out impurities contained in the waste cutting fluid, preventing these impurities from affecting the subsequent concentration and evaporation of the waste cutting fluid. To prevent the filter pores inside the filter plate from being blocked, the drive motor drives the rotating rod to rotate, and the protrusions on the outside of the rotating rod also rotate, thereby repeatedly squeezing the filter plate. Under the action of the spring telescopic rod, the filter plate will be in a state of vibration, effectively preventing the filter pores inside the filter plate from being blocked.

[0018] 2. The refrigerant is compressed by the compressor into a high-temperature, high-pressure gaseous state. The high-temperature, high-pressure gaseous refrigerant enters the disc tube inside the distillation kettle through the pipeline. The refrigerant inside the disc tube releases heat, which heats the cutting fluid waste liquid inside the distillation kettle through heat exchange. As the heat is transferred, the water in the cutting fluid waste liquid evaporates rapidly in the low-temperature, low-pressure environment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a low-temperature evaporation and concentration device for cutting fluid waste.

[0020] Figure 2 This is a side view schematic diagram of a low-temperature evaporation and concentration device for cutting fluid waste.

[0021] Figure 3 This is a schematic diagram of some components in a low-temperature evaporation and concentration device for cutting fluid waste.

[0022] Figure 4 This is a schematic diagram of the internal structure of the distillation vessel in a low-temperature evaporation and concentration device for cutting fluid waste.

[0023] Figure 5 This is a schematic diagram of the filter box in a low-temperature evaporation and concentration device for cutting fluid waste.

[0024] Figure 6 This is a schematic diagram of the structure of a filter plate in a low-temperature evaporation and concentration device for cutting fluid waste.

[0025] The following are the labels in the diagram: 1. Mounting base; 2. Support plate; 3. Water storage tank; 4. Water supply pipe; 5. Evaporator; 6. Gas supply pipe; 7. Filter box; 8. Vacuum pump; 9. Distillation kettle; 10. Drain pump; 11. Compressor; 12. Condenser; 13. Drive motor; 14. Liquid inlet hopper; 15. Return pipe; 16. Expansion valve; 17. Coiled tube; 18. Solenoid valve; 19. Rotating rod; 20. Protrusion; 21. Filter plate; 22. Mounting block; 23. Spring telescopic rod; 24. Connecting pipe; 25. Drain pump. Detailed Implementation

[0026] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0027] like Figures 1 to 6 As shown, this utility model provides:

[0028] A low-temperature evaporation and concentration device for cutting fluid waste includes a mounting base 1, a support plate 2 on the top of the mounting base 1, a distillation vessel 9 for distilling the waste fluid on the side wall of the support plate 2, a disc tube 17 inside the distillation vessel 9, an evaporator 5 for collecting water vapor on the side wall of the support plate 2, a gas supply pipe 6 connected to the outside of the distillation vessel 9, one end of the gas supply pipe 6 connected to one end of the evaporator 5, a water storage tank 3 on the top of the mounting base 1, a water supply pipe 4 connected to the inside of the water storage tank 3, one end of the water supply pipe 4 connected to the other end of the evaporator 5, and a filter assembly for filtering impurities in the waste fluid on the top of the distillation vessel 9.

[0029] Impurities in the waste cutting fluid are filtered by the filter assembly. Then, the waste cutting fluid inside the distillation vessel 9 is heated by heat exchange. As heat is transferred, the water in the waste cutting fluid evaporates rapidly under low temperature and low pressure, generating steam. The steam is discharged from the gas supply pipe 6 at the top of the distillation vessel 9 and enters the interior of the evaporator 5.

[0030] like Figure 6 As shown, the filtration assembly includes a filter box 7 disposed on top of the distillation vessel 9. A filter plate 21 for filtering impurities is movably disposed inside the filter box 7. A connecting pipe 24 is connected to the bottom of the filter box 7. One end of the connecting pipe 24 is connected to the inside of the distillation vessel 9. A solenoid valve 18 is disposed inside the connecting pipe 24.

[0031] The filter plate 21 inside the filter box 7 can filter out the impurities contained in the waste cutting fluid, preventing these impurities from affecting the subsequent concentration and evaporation of the waste cutting fluid.

[0032] like Figure 6As shown, mounting blocks 22 are provided on both inner walls of the filter box 7. Spring telescopic rods 23 are provided on both sides of the top of the mounting blocks 22. The telescopic ends of the spring telescopic rods 23 are connected to the bottom of the filter plate 21. A drive motor 13 is provided on the outer wall of the filter box 7. A rotating rod 19 is provided on the output shaft of the drive motor 13 through a coupling. One end of the rotating rod 19 is rotatably connected to the inner wall of the filter box 7. A protrusion 20 for squeezing the filter plate 21 is provided on the outside of the rotating rod 19.

[0033] When it is necessary to prevent the filter holes inside the filter plate 21 from being blocked, the drive motor 13 drives the rotating rod 19 to rotate. At the same time, the protrusion 20 on the outside of the rotating rod 19 also rotates, thereby repeatedly squeezing the filter plate 21. Under the action of the spring telescopic rod 23, the filter plate 21 will be in a state of vibration, effectively preventing the filter holes inside the filter plate 21 from being blocked.

[0034] like Figure 2 and Figure 3 As shown, a compressor 11 and a condenser 12 are respectively installed on the top of the mounting base 1. The output end of the compressor 11 is connected to one end of the coil tube 17 through a pipe. The input end of the condenser 12 is connected to the other end of the coil tube 17 through a pipe. The output end of the condenser 12 is connected to a return pipe 15. The other end of the return pipe 15 is connected to the inside of the evaporator 5. The input end of the compressor 11 is also connected to the inside of the evaporator 5.

[0035] The refrigerant, such as Freon, is compressed by the compressor 11 to become a high-temperature, high-pressure gaseous state. The high-temperature, high-pressure gaseous refrigerant enters the disc tube 17 inside the distillation kettle 9 through the pipe, and the refrigerant inside the disc tube 17 releases heat.

[0036] like Figure 3 As shown, an expansion valve 16 for cooling is installed inside the reflux pipe 15.

[0037] The pressure and temperature are reduced by the condenser 12 and expansion valve 16, and the fluid returns to the compressor 11 for the next cycle.

[0038] like Figure 3 As shown, a vacuum pump 8 for generating negative pressure is installed on the top of the distillation vessel 9.

[0039] The vacuum pump 8 extracts air from the distillation vessel 9, reducing the internal pressure. Since the boiling point of a liquid is positively correlated with pressure, the pressure reduction causes the boiling point of the liquid to drop significantly, providing the necessary conditions for subsequent low-temperature evaporation below 37°C.

[0040] like Figure 2 As shown, the top of the mounting base 1 is equipped with a drain pump 10 for discharging concentrated liquid, and the input end of the drain pump 10 is connected to the bottom of the distillation vessel 9 through a pipe.

[0041] The concentrated liquid inside the distillation vessel 9 can be discharged by the drain pump 10, at which point the concentration ratio of the concentrated liquid can reach a maximum of 70% to 90%.

[0042] like Figure 1 As shown, the top of the mounting base 1 is equipped with a drain pump 25 for draining water from the inside of the water storage tank 3. The input end of the drain pump 25 is connected to the inside of the water storage tank 3 through a pipe.

[0043] The water collected inside the water storage tank 3 can be transported using the drainage pump 25, making it convenient for later use.

[0044] like Figure 3 As shown, the top of the filter box 7 is connected to an inlet hopper 14 for easy liquid intake.

[0045] The drain pump 25 can be conveniently deployed into the interior of the distillation vessel 9.

[0046] like Figure 1 , Figure 2 and Figure 6 As shown, the front end of the filter box 7 is equipped with a rotating door for easy cleaning of the filter plate 21.

[0047] The impurities remaining on the filter plate 21 can be cleaned by using the openable drain pump 25, so as to avoid the accumulation of a large amount of impurities on the filter plate 21 and affect the subsequent filtration effect.

[0048] Working Principle: When it is necessary to concentrate the waste cutting fluid, the waste cutting fluid is first poured into the filter box 7 through the inlet hopper 14. The filter plate 21 inside the filter box 7 can filter out the impurities contained in the waste cutting fluid, preventing these impurities from affecting the subsequent concentration and evaporation of the waste cutting fluid. Then, to prevent the filter holes inside the filter plate 21 from being blocked, the drive motor 13 drives the rotating rod 19 to rotate. At the same time, the protrusion 20 on the outside of the rotating rod 19 also rotates, thereby repeatedly squeezing the filter plate 21. The filter plate 21 will be in a state of vibration under the action of the spring telescopic rod 23, effectively preventing the filter holes inside the filter plate 21 from being blocked. After the waste cutting fluid is filtered, the solenoid valve 18 is activated, and the waste cutting fluid will flow into the distillation kettle 9 under the action of gravity. Then the solenoid valve 18 is closed, and the vacuum pump 8 is activated to extract the air in the distillation kettle 9 and reduce the internal pressure. Due to the boiling of the liquid... The boiling point is positively correlated with the pressure. A decrease in pressure causes a significant drop in the boiling point of the liquid, providing the necessary conditions for subsequent low-temperature evaporation below 37°C. Finally, the refrigerant, such as Freon, is compressed by the compressor 11, turning it into a high-temperature, high-pressure gaseous state. The high-temperature, high-pressure gaseous refrigerant enters the coiled tube 17 inside the distillation vessel 9 through a pipe. The refrigerant inside the coiled tube 17 releases heat, which heats the cutting fluid waste liquid inside the distillation vessel 9 through heat exchange. As heat is transferred, the water in the cutting fluid waste liquid evaporates rapidly under low-temperature and low-pressure conditions, generating steam. The steam is discharged from the gas delivery pipe 6 at the top of the distillation vessel 9 and enters the interior of the evaporator 5. The refrigerant that has released heat flows out through the other end of the coiled tube 17, and then passes through the condenser 12 and the expansion valve 16 to reduce pressure and temperature, returning to the compressor 11 for the next cycle. The steam entering the evaporator 5 will condense back into water under the action of the condenser 12, and finally fall into the interior of the water storage tank 3 through the water delivery pipe 4.

[0049] The above embodiments merely illustrate one or several implementation methods of the low-temperature evaporation and concentration equipment for cutting fluid waste of this utility model. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

[0050] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A low-temperature evaporation and concentration device for waste cutting fluid, characterized in that, The device includes a mounting base (1), a support plate (2) on the top of the mounting base (1), a distillation vessel (9) for distilling waste liquid on the side wall of the support plate (2), a disc tube (17) inside the distillation vessel (9), an evaporator (5) for collecting water vapor on the side wall of the support plate (2), a gas supply pipe (6) connected to the outside of the distillation vessel (9), one end of the gas supply pipe (6) connected to one end of the evaporator (5), a water storage tank (3) on the top of the mounting base (1), a water supply pipe (4) connected to the inside of the water storage tank (3), one end of the water supply pipe (4) connected to the other end of the evaporator (5), and a filter assembly for filtering impurities in the waste liquid on the top of the distillation vessel (9).

2. The low-temperature evaporation and concentration equipment for cutting fluid waste according to claim 1, characterized in that, The filtration assembly includes a filter box (7) disposed on top of the distillation vessel (9). A filter plate (21) for filtering impurities is movably disposed inside the filter box (7). A connecting pipe (24) is connected to the bottom of the filter box (7). One end of the connecting pipe (24) is connected to the inside of the distillation vessel (9). A solenoid valve (18) is disposed inside the connecting pipe (24).

3. The low-temperature evaporation and concentration equipment for cutting fluid waste according to claim 2, characterized in that, The filter box (7) has mounting blocks (22) on both sides of its inner wall. The mounting blocks (22) have spring telescopic rods (23) on both sides of their top. The telescopic ends of the spring telescopic rods (23) are connected to the bottom of the filter plate (21). The filter box (7) has a drive motor (13) on its outer wall. The output shaft of the drive motor (13) has a rotating rod (19) connected to it via a coupling. One end of the rotating rod (19) is rotatably connected to the inner wall of the filter box (7). The rotating rod (19) has a protrusion (20) on its outer side for pressing the filter plate (21).

4. The low-temperature evaporation and concentration equipment for cutting fluid waste according to claim 1, characterized in that, The top of the mounting base (1) is respectively equipped with a compressor (11) and a condenser (12). The output end of the compressor (11) is connected to one end of the disc tube (17) through a pipe. The input end of the condenser (12) is connected to the other end of the disc tube (17) through a pipe. The output end of the condenser (12) is connected to a return pipe (15). The other end of the return pipe (15) is connected to the inside of the evaporator (5). The input end of the compressor (11) is also connected to the inside of the evaporator (5).

5. The low-temperature evaporation and concentration equipment for cutting fluid waste according to claim 4, characterized in that, An expansion valve (16) for cooling is installed inside the return pipe (15).

6. The low-temperature evaporation and concentration equipment for cutting fluid waste according to claim 1, characterized in that, The top of the distillation vessel (9) is equipped with a vacuum pump (8) for generating negative pressure.

7. The low-temperature evaporation and concentration equipment for cutting fluid waste according to claim 1, characterized in that, The top of the mounting base (1) is provided with a drain pump (10) for discharging concentrated liquid, and the input end of the drain pump (10) is connected to the bottom of the distillation vessel (9) through a pipe.

8. The low-temperature evaporation and concentration equipment for cutting fluid waste according to claim 1, characterized in that, The top of the mounting base (1) is provided with a drain pump (25) for draining water from the inside of the water storage tank (3), and the input end of the drain pump (25) is connected to the inside of the water storage tank (3) through a pipe.

9. A low-temperature evaporation and concentration device for cutting fluid waste according to claim 2, characterized in that, The top of the filter box (7) is connected to a liquid inlet hopper (14) for easy liquid intake.

10. A low-temperature evaporation and concentration device for cutting fluid waste according to claim 2, characterized in that, The front end of the filter box (7) is provided with a rotating door for easy cleaning of the filter plate (21).

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