A device for recycling the working fluid of a numerical control machine tool and its usage method

Abstract

A device and method for recycling the working fluid of a numerically controlled machine tool provided by the present invention belong to the technical field of numerically controlled center equipment. The device includes a wire cutting main body, a workpiece to be processed, a temporary storage barrel assembly, a temporary storage barrel liquid outlet pipe assembly, a solid-liquid separation assembly, a separation box support frame, a cylinder assembly, a slag removal assembly, and a PLC control system; one end of the temporary storage barrel liquid outlet pipe assembly is connected to the first temporary storage barrel assembly, and the other end is connected to the solid-liquid separation assembly; the separation box support frame is connected to the cylinder protection seat at the bottom of the solid-liquid separation assembly; the cylinder assembly is located inside the cylinder protection seat; the working fluid and debris flow into the first temporary storage barrel assembly together, and then flow into the solid-liquid separation assembly through the temporary storage barrel liquid outlet pipe assembly. The large particle debris is left in the separation box body of the solid-liquid separation assembly, and the separated working fluid enters the slag removal assembly for further separation. The present invention realizes the regulation of the flow rate of the working fluid to the second temporary storage barrel by adjusting the rotation angle of the rotating cylinder.

Description

Technical Field

[0001] The present invention belongs to the technical field of numerical control center equipment, and particularly relates to a device for recycling the working fluid of a numerically controlled machine tool and a usage method thereof. Background Art

[0002] Wire electrical discharge machining (WEDM) is a type of numerically controlled machine tool. Its basic principle is to use a continuously moving thin metal wire as the tool electrode, and pass a pulsed current between the metal wire and the workpiece. Utilize the pulsed spark discharge effect between them, and through the relative movement of the electrode wire and the workpiece, the workpiece is cut and formed. Wire electrical discharge machining is also simply referred to as wire cutting. Early wire cutting technology was mainly applied to the processing of metal parts. With the development of technology, wire cutting is currently also applied to the cutting of non-metal parts. For example, wire electrical discharge machining is suitable for various ceramic materials with high hardness and high temperature resistance, such as alumina, silicon carbide, etc. These materials are difficult to cut by traditional mechanical processing methods, but can be precisely cut by the high-temperature discharge of electric sparks. At the same time, some plastic materials can also be processed by wire electrical discharge machining under specific process conditions. Common examples include engineering plastics and certain composite materials. Since wire cutting machining is different from general mechanical cutting machining and belongs to electrical discharge machining, in addition to having functions such as cooling, chip removal, lubrication, and rust prevention, the wire cutting machining fluid also directly participates in the machining process as the discharge medium.

[0003] During the wire cutting machining process, a large amount of debris will be generated. Currently, most manufacturers pump the mixture of these debris and the working fluid into the recycling system through a circulation pump. Due to the relatively simple treatment and filtration of solid debris, the solid debris causes relatively large wear on the circulation pump, and even leads to abnormal shutdown during work, affecting the product quality and even the production progress. Moreover, in the treatment of the working fluid, the flow rate is generally constant.

[0004] The authorized announcement number CN116275336B discloses a wire-cutting machine tool protective cover that is easy to install. By splitting the protective cover into six major components, the six major components are independently packaged and assembled before being assembled onto the wire-cutting machine tool, greatly reducing the assembly difficulty, saving assembly time and cost. Moreover, the oil tank shield component can prevent the splashing of cutting fluid, and the head shield component can recycle the cutting fluid water mist to achieve the recycling of cutting fluid. Assembly personnel can install the shield top plate and the shield side plate through the cooperation of the connecting block and the connecting groove without the assistance of others, which is more convenient and reduces labor consumption. And the positioning rod can be accurately positioned by the movement of the adjusting plate in any direction inside the movable hole to prevent the deformation of the shield side plate from preventing positioning and installation. Although this invention can recycle the cutting fluid water mist, it does not process the solid debris in the cutting fluid, and it is impossible to timely understand the accumulation degree of solid debris through the shield component, resulting in the problem that the processing quality of the workpiece is affected due to untimely cleaning. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a device and method for recycling the working fluid of a numerical control machine tool, which effectively solves the problems in the prior art that most manufacturers at present pump the mixture of these debris and the working fluid into the recycling system through a circulating pump. Due to the relatively simple treatment and filtration of solid debris, the solid debris causes great wear to the circulating pump, and even leads to abnormal shutdown during work, affecting the quality of products and even the production progress. And in the treatment of the working fluid, the flow rate is generally constant. To achieve the above purpose, the present invention provides the following technical solutions: A device for recycling the working fluid of a numerical control machine tool includes a wire-cutting main body, a workpiece to be processed, a first temporary storage tank assembly, a temporary storage tank liquid discharge pipe assembly, a solid-liquid separation assembly, a separation box support frame, a cylinder assembly, a slag removal assembly, a second temporary storage tank assembly and a PLC control system; one end of the temporary storage tank liquid discharge pipe assembly is connected to the first temporary storage tank assembly, and the other end is connected to the solid-liquid separation assembly; the separation box support frame is connected to the cylinder protection seat at the bottom of the solid-liquid separation assembly; the cylinder assembly is located inside the cylinder protection seat; the wire-cutting main body processes the workpiece to be processed, and the working fluid flows out from the liquid storage tank of the wire-cutting main body and sprays onto the surface of the workpiece to be processed. The working fluid and the debris flow into the first temporary storage tank assembly together, and then flow into the solid-liquid separation assembly through the temporary storage tank liquid discharge pipe assembly. The large-particle debris remains in the separation box body of the solid-liquid separation assembly, and the separated working fluid enters the slag removal assembly for further separation.

[0006] Preferably, a stop valve is provided at the discharge end of the first temporary storage tank assembly, the main pipe of the temporary storage tank liquid discharge pipe assembly is a rubber hose, a temporary storage tank drain pipe is provided at the outlet end of the second temporary storage tank assembly, and a liquid extraction pump is provided on the temporary storage tank drain pipe.

[0007] Preferably, the solid-liquid separation assembly further includes a separation tank top cover plate, a trigger assembly, a reset assembly, a separation tank drain pipe aggregation assembly, a first elastic support assembly, and a second elastic support assembly. The separation tank top cover plate is located at the top of the separation tank body. The trigger assembly is located on the side of the separation tank body away from the temporary storage barrel liquid outlet pipe assembly. The reset assembly is located on the side of the separation tank body close to the temporary storage barrel liquid outlet pipe assembly. The separation tank drain pipe aggregation assembly is located at the bottom of the separation tank body and is communicated with it. One end of the first elastic support assembly is fixedly connected to the separation tank body, and the other end is fixedly connected to the cylinder protection seat. One end of the second elastic support assembly is fixedly connected to the separation tank body, and the other end is fixedly connected to the cylinder protection seat.

[0008] Preferably, a first filter screen plate and a second filter screen plate are arranged in the separation tank body. The separation tank body is sequentially divided into three areas A, B, and C by the first filter screen plate and the second filter screen plate. When the working liquid flows into the area A of the separation tank body, the solid particles in the working liquid are isolated in the area A, and the liquid will be distributed in the areas A and B. When the liquid in the areas A and B reaches the preset height, the working liquid will flow to the area C. A first drain port is opened at the bottom of the area B of the separation tank body. A second drain port is opened at the bottom of the area C of the separation tank body. A sealing door is opened on the side of the area A of the separation tank body away from the area B. Support shafts are arranged on both the front and back sides of the separation tank body. An induction cylinder is arranged on the side of the area C of the separation tank body away from the area B. A third spring is connected inside the induction cylinder. A separation tank deflection shaft is arranged at the bottom of the separation tank body. A separation tank liquid inlet is arranged on the separation tank top cover plate. The separation tank liquid inlet is located at the top of the area A of the separation tank body. An induction switch is arranged on the trigger assembly. The reset assembly includes a first connecting cylinder, a fourth spring, and a first fixing seat. Both ends of the fourth spring are connected to the first connecting cylinder. The separation tank drain pipe aggregation assembly is respectively communicated with the first drain port and the second drain port. A first solenoid valve and a second solenoid valve are respectively arranged on the separation tank drain pipe aggregation assembly. The first solenoid valve is located below the first drain port. The second solenoid valve is located below the second drain port. The connecting pipes between the first drain port and the first solenoid valve and between the second drain port and the second solenoid valve are both hoses. A number of air pipe fixing holes are opened on the cylinder protection seat. The first elastic support assembly includes a first spring, a second connecting cylinder, and a second fixing seat. Both ends of the first spring are connected to the second connecting cylinder. A second spring is arranged inside the second elastic support assembly.

[0009] Preferably, the number of the separation box support frames is two. The separation box support frame includes a guiding frame, a bearing seat fixedly connected to the guiding frame, and a bearing located inside the bearing seat. The guiding frame is respectively provided with a first fixing clamp and a second fixing clamp. The first fixing clamp and the second fixing clamp are fastened by bolts to form a guiding hole. When the weight of the separation box body changes, the separation box body and the separation box support frame move downward as a whole along the axis of the guiding hole. When the liquid level in the C area of the separation box body is lower than the set value, the separation box body is in a horizontal state. When the liquid level in the C area of the separation box body is higher than the set value, the separation box body deflects.

[0010] Preferably, the cylinder assembly includes a cylinder housing, a cylinder top plate, a cylinder bottom plate, a piston, a piston rod, a piston rod connecting member, and a fifth spring. The cylinder top plate is located at the top of the cylinder housing and fixedly connected thereto. The cylinder bottom plate is located at the bottom of the cylinder housing and fixedly connected thereto. The piston is located inside the cylinder housing. The piston rod is located at the top of the piston and fixedly connected thereto. The piston rod penetrates through the cylinder top plate. The piston rod and the separation box body are connected through the piston rod connecting member. The fifth spring is located between the piston and the cylinder bottom plate. The piston divides the cylinder assembly into two areas D and E. One side of the cylinder housing close to the C area of the separation box body is provided with a first intake pipe and a second intake pipe. The first intake pipe is communicated with the D area of the cylinder assembly. A first one-way valve is provided on the first intake pipe. The second intake pipe is communicated with the E area of the cylinder assembly. A second one-way valve is provided on the second intake pipe. One side of the cylinder housing close to the A area of the separation box body is provided with a first exhaust pipe and a second exhaust pipe. The first exhaust pipe is communicated with the D area of the cylinder assembly. A third one-way valve is provided on the first exhaust pipe. The second exhaust pipe is communicated with the E area of the cylinder assembly. A fourth one-way valve is provided on the second exhaust pipe. The gases in the first exhaust pipe and the second exhaust pipe both enter the aggregated exhaust pipe. A fifth one-way valve is provided on the aggregated exhaust pipe.

[0011] Preferably, the slag removal assembly includes an infusion shaft assembly and a rotating drum assembly. The infusion shaft assembly penetrates through the rotating drum assembly. The infusion shaft assembly includes an infusion shaft and an infusion shaft support assembly. The infusion shaft penetrates through the infusion shaft support assembly and is fixedly connected thereto. The infusion shaft is successively a support shaft end, a liquid inlet shaft end, and an infusion shaft end from left to right. A first through hole and a first groove are provided on the liquid inlet shaft end. An axial end liquid outlet is formed on the infusion shaft end.

[0012] Preferably, the rotary drum assembly includes a rotary drum, end cover plates, a fixed housing, a fixed housing gasket, and a sealing plate. The rotary drum penetrates through the end cover plates and the fixed housing. The end cover plates are fixedly connected to both ends of the fixed housing, and the end cover plates and the fixed housing are connected by bolts to form a fixed cylinder. The rotary drum can rotate along the axis of the fixed cylinder. The fixed housing gasket and the sealing plate are located at the bottom of the fixed housing.

[0013] Preferably, second through holes are provided on the outer periphery of the rotary drum. A handle and a third through hole are provided on one side of the rotary drum close to the axial end liquid outlet. A second groove is provided in the third through hole. The end cover plate is provided with a fourth through hole and a vent hole. A third groove is provided in the fourth through hole. A fixed housing feed port is provided at the top of the fixed housing, and a fixed housing slag discharge port is provided at the bottom of the fixed housing. The number and specifications of the first through holes and the second through holes correspond to each other.

[0014] The present invention also provides a usage method of a working fluid recycling device for a numerical control machine tool. The usage method includes a working fluid recycling method S1, a large particle solid recovery method S2, and a small particle solid recovery method S3;

[0015] Among them: The working fluid recycling method S1 includes the following steps:

[0016] S11, the workpiece to be processed is processed by the wire cutting main body. The working fluid flows out from the liquid storage tank of the wire cutting main body and is sprayed onto the surface of the workpiece to be processed. The working fluid and debris flow into the first temporary storage barrel assembly together and flow into the solid-liquid separation assembly through the temporary storage barrel liquid outlet pipe assembly;

[0017] S12, large particle debris remains in area A in the separation box body of the solid-liquid separation assembly, and the liquid flows to area B, making the liquid levels in area A and area B equal;

[0018] S13, as the cutting work continues, the liquid levels in area A and area B of the separation box body continue to rise, and the separation box body and the separation box support frame descend as a whole. The piston rod drives the piston to move downward, and the gas in area E of the cylinder assembly is pressurized. The pressurized gas flows into the rotary drum assembly through the second exhaust pipe and the aggregated exhaust pipe, making it difficult for solid debris in the rotary drum assembly to form agglomerates. At this time, the volume of area D of the cylinder assembly increases, the air pressure decreases, and external air enters area D of the cylinder assembly;

[0019] S14, as the liquid level continues to rise, the liquid in area A and area B of the separation box body will flow to area C. When the liquid height in area C of the separation box body is higher than the set value, the separation box body deflects, causing the third spring to contact the induction switch and feeding back to the PLC control system;

[0020] S15. Open the first solenoid valve and the second solenoid valve simultaneously. The liquid in the separation tank flows into the slag removal component through the drainage pipe assembly of the separation tank. At this time, the first through hole and the second through hole are in a connected state. Small particle solids are deposited at the bottom of the fixed cylinder, and the liquid flows into the second temporary storage tank assembly through the liquid outlet at the shaft end.

[0021] S16. After a preset time, close the first solenoid valve and the second solenoid valve. At this time, under the combined action of the first spring, the second spring, and the fourth spring, the separation tank body deflects in the reverse direction and returns to the horizontal state. At the same time, under the action of the fifth spring, the piston rod drives the piston to move upward, and the gas in the D area of the cylinder assembly is pressurized. The pressurized gas flows into the rotary cylinder assembly through the first exhaust pipe and the aggregated exhaust pipe. At this time, the volume of the E area of the cylinder assembly increases, the air pressure decreases, and the outside air enters the E area of the cylinder assembly.

[0022] S17. When the liquid level in the second temporary storage tank assembly reaches the preset liquid level, start the liquid extraction pump and pump the working liquid in the second temporary storage tank assembly into the liquid storage tank.

[0023] Among them: The large particle solid recovery method S2 includes the following steps:

[0024] S21. On the basis of the above S12 step, when the large particle solids in the A area of the separation tank body need to be cleaned, close the stop valve when the liquid in the separation tank body is emptied.

[0025] S22. Use an external support to lift the induction cylinder. Under the combined action of the first spring, the second spring, and the fourth spring, make the separation tank body in a "stuck" state and open the sealing door.

[0026] S23. Utilize the inclined state of the separation tank body to conveniently clean the large particle solids in the separation tank body into a specified container.

[0027] S24. Close the sealing door, separate the external support from the induction cylinder, and under the combined action of the first spring, the second spring, and the fourth spring, the separation tank body returns to the horizontal state.

[0028] S25. Open the stop valve.

[0029] Among them: The small particle solid recovery method S3 includes the following steps:

[0030] S31. On the basis of the above S15 step, when the small particle solids at the bottom of the fixed cylinder need to be cleaned, rotate the rotary cylinder by a certain degree when there is no liquid entering the slag removal component. At this time, the first through hole and the second through hole are in a completely non-connected state.

[0031] S32. Open the sewage valve at the bottom of the fixed cylinder and drain the liquid at the bottom of the fixed cylinder.

[0032] S33, close the drain valve, separate the fixed shell sealing gasket and the sealing plate from the fixed shell, and discharge the small solid particles from the fixed shell slag discharge port to a designated container;

[0033] S33, fastening the fixed shell sealing gasket, the sealing plate and the fixed shell with bolts;

[0034] S34, rotating the drum again, at which time the first through hole and the second through hole are in a fully connected state.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] The present invention provides a working fluid recycling device for a numerically controlled machine tool. Through the arrangement of a first temporary storage barrel assembly, a temporary storage barrel liquid outlet pipe assembly, a solid-liquid separation assembly, a separation box support frame, a cylinder assembly, a slag removal assembly, a second temporary storage barrel assembly and a PLC control system, the solid debris in the working fluid can be separated in time, and the working fluid can be recycled and reused, thereby effectively improving the resource utilization efficiency of the entire processing process. The center of gravity of the separation box body is arranged on the axis of the separation box deflection shaft. Under the action of the elastic support assembly, when the liquid height in the C area of ​​the separation box body is lower than the set value, the separation box body is always in a horizontal state; when the liquid height in the C area of ​​the separation box body is higher than the set value, deflection will occur, thereby facilitating the timely discharge of the working fluid.

[0037] The present invention provides a working fluid recycling device for a numerically controlled machine tool. When a separation box body is kept in a horizontal state, the inflow of working fluid containing solid debris causes an increase in the overall weight of the separation box body, thereby causing the piston to move downward; when the working fluid in the separation box body is discharged, the separation box body will quickly reset under the joint action of the elastic support assembly and the fifth spring, thereby causing the piston to move upward. During the movement of the piston, pressurized gas will be generated in the exhaust pipe and introduced into the drum assembly, thereby preventing the solid debris in the drum assembly from forming agglomerates and reducing the difficulty of subsequent cleaning.

[0038] The present invention provides a CNC machine tool working fluid recycling device, in which a separation box support frame and a separation box move as a whole in the height direction, thereby reducing the adverse effects of vibration. At the same time, through the setting of a reset component and a sealing door, the separation box body is in a "stuck" state, so large particles of solids can be removed quickly and conveniently.

[0039] The invention provides a CNC machine tool working fluid recycling device, wherein the slag removal component has a compact structure and is easy to operate, and the flow rate of the working fluid to the second temporary storage barrel can be regulated by adjusting the rotation angle of the rotating drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1is the overall schematic diagram of the present invention;

[0041] Figure 2 is the structural schematic diagram of the solid-liquid separation component of the present invention;

[0042] Figure 3 is the structural schematic diagram of the separation box body of the present invention;

[0043] Figure 4 is the present invention Figure 3 schematic diagram of the back structure;

[0044] Figure 5 is the connection schematic diagram of the cylinder protection seat and the elastic support component of the present invention;

[0045] Figure 6 is the structural schematic diagram of the separation box support frame of the present invention;

[0046] Figure 7 is the structural schematic diagram of the cylinder component of the present invention;

[0047] Figure 8 is the internal structural schematic diagram of the cylinder component of the present invention;

[0048] Figure 9 is the structural schematic diagram of the slag removal component of the present invention;

[0049] Figure 10 is the internal structural schematic diagram of the slag removal component of the present invention in a fully connected state;

[0050] Figure 11 is the internal structural schematic diagram of the slag removal component of the present invention in a fully closed state;

[0051] Figure 12 is the structural schematic diagram of the infusion shaft of the present invention;

[0052] Figure 13 is the structural schematic diagram of the rotating drum of the present invention;

[0053] Figure 14 is the structural schematic diagram of the end cover plate of the present invention;

[0054] Figure 15 is the structural schematic diagram of the fixed shell of the present invention.

[0055] In the figure: 100, wire cutting main body; 110, liquid storage tank; 120, workpiece to be processed; 200, first temporary storage barrel assembly; 201, stop valve; 300, temporary storage barrel liquid outlet pipe assembly; 400, solid-liquid separation assembly; 410, separation box body; 411, first filter screen plate; 412, second filter screen plate; 413, first drain port; 414, second drain port; 415, sealing door; 416, supporting shaft; 417, induction cylinder; 418, third spring; 419, separation box deflection shaft; 420, separation box top cover plate; 421, separation box liquid inlet; 430, triggering assembly; 431, induction switch; 440, reset assembly; 441, first connecting cylinder; 442, fourth spring; 443, first fixed seat; 450, separation box drain pipe aggregation assembly; 451, first solenoid valve; 452, second solenoid valve; 460, cylinder protection seat; 461, air pipe fixing hole; 470, first elastic support assembly; 471, first spring; 472, second connecting cylinder; 473, second fixed seat; 480, second elastic support assembly; 481, second spring; 500, separation box support frame; 510, guide frame; 520, bearing seat; 530, bearing; 540, first fixing clip; 550, second fixing clip; 600, cylinder assembly; 610, cylinder housing; 620, cylinder top plate; 630, cylinder bottom plate; 641, first air inlet pipe; 642, first check valve; 643, second air inlet pipe; 644, second check valve; 651, first exhaust pipe; 652, third check valve; 653, second exhaust pipe; 654, fourth check valve; 655, aggregated exhaust pipe; 656, fifth check valve; 660, piston; 670, piston rod; 680, piston rod connecting piece; 690, fifth spring; 700, liquid delivery shaft assembly; 710, liquid delivery shaft; 711, liquid inlet shaft end; 712, first through hole; 713, first groove; 714, support shaft end; 715, liquid delivery shaft end; 716, shaft end liquid outlet; 720, liquid delivery shaft support assembly; 800, rotating cylinder assembly; 810, rotating cylinder; 811, second through hole; 812, handle; 813, third through hole; 814, second groove; 820, end cover plate; 821, fourth through hole; 822, third groove; 823, ventilation hole; 830, fixed shell; 831, fixed shell feed inlet; 832, fixed shell slag discharge port; 840, fixed shell gasket; 850, sealing plate; 900, second temporary storage barrel assembly; 910, temporary storage barrel liquid drain pipe; 911, liquid extraction pump. Detailed implementation manners

[0056] 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 a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0057] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention.

[0058] It should be understood that in the description of the invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense.

[0059] Embodiment 1

[0060] See the attached Figure 1 to the attached Figure 15 As shown in the figures, a device for recycling the working fluid of a numerically controlled machine tool provided in this embodiment includes a wire cutting main body 100, a workpiece to be processed 120, a first temporary storage barrel assembly 200, a temporary storage barrel liquid outlet pipe assembly 300, a solid-liquid separation assembly 400, a separation box support frame 500, a cylinder assembly 600, a slag removal assembly, a second temporary storage barrel assembly 900, and a PLC control system.

[0061] A cut-off valve 201 is provided at the discharge end of the first temporary storage barrel assembly 200. The workpiece to be processed 120 is processed by the wire cutting main body 100. The working fluid flows out from the liquid storage tank 110 and is sprayed onto the surface of the workpiece to be processed 120. The working fluid and debris flow into the first temporary storage barrel assembly 200 together, and the flow of the working fluid containing debris is realized by the opening and closing of the cut-off valve 201.

[0062] One end of the temporary storage barrel liquid outlet pipe assembly 300 is communicated with the first temporary storage barrel assembly 200, and the other end is communicated with the solid-liquid separation assembly 400. The main pipeline of the temporary storage barrel liquid outlet pipe assembly 300 is a rubber hose.

[0063] The solid-liquid separation assembly 400 further includes a separation tank top cover plate 420, a trigger assembly 430, a reset assembly 440, a separation tank drain pipe aggregation assembly 450, a first elastic support assembly 470, and a second elastic support assembly 480. The separation tank top cover plate 420 is located at the top of the separation tank body 410. The trigger assembly 430 is located on the side of the separation tank body 410 away from the temporary storage barrel liquid outlet pipe assembly 300. The reset assembly 440 is located on the side of the separation tank body 410 close to the temporary storage barrel liquid outlet pipe assembly 300. The separation tank drain pipe aggregation assembly 450 is located at the bottom of the separation tank body 410 and is communicated with it. One end of the first elastic support assembly 470 is fixedly connected to the separation tank body 410, and the other end is fixedly connected to the cylinder protection seat 460. One end of the second elastic support assembly 480 is fixedly connected to the separation tank body 410, and the other end is fixedly connected to the cylinder protection seat 460.

[0064] Inside the separation box body 410, a first filter screen plate 411 and a second filter screen plate 412 are provided. The separation box body 410 is sequentially divided into three regions A, B, and C by the first filter screen plate 411 and the second filter screen plate 412. Filter holes are formed on both the first filter screen plate 411 and the second filter screen plate 412. The first filter screen plate 411 has a full filter hole structure, and the bottom of the second filter screen plate 412 is a solid plate. When the working fluid flows into the region A of the separation box body 410, the solid particles in the working fluid are isolated in the region A, and the liquid will be distributed in the regions A and B. When the liquid in the regions A and B reaches the preset height, the working fluid will flow into the region C; a first drain port 413 is formed at the bottom of the region B of the separation box body 410, a second drain port 414 is formed at the bottom of the region C of the separation box body 410, a sealing door 415 is formed on the side of the region A of the separation box body 410 away from the region B, support shafts 416 are provided on both the front and back sides of the separation box body 410, an induction cylinder 417 is provided on the side of the region C of the separation box body 410 away from the region B, a third spring 418 is connected inside the induction cylinder 417, a separation box deflection shaft 419 is provided at the bottom of the separation box body 410, the center of gravity of the separation box body 410 is located on the axis of the separation box deflection shaft 419, a separation box liquid inlet 421 is provided on the separation box top cover plate 420, and the separation box liquid inlet 421 is located at the top of the region A of the separation box body 410. An induction switch 431 is provided on the trigger assembly 430. The reset assembly 440 includes a first connecting cylinder 441, a fourth spring 442, and a first fixing seat 443. Both ends of the fourth spring 442 are connected to the first connecting cylinder 441. The trigger assembly 430 and the reset assembly 440 are both fixed by a support structure (not shown in the figure). The separation box drain pipe aggregation assembly 450 is respectively connected to the first drain port 413 and the second drain port 414. The separation box drain pipe aggregation assembly 450 is a three-way pipe. A first solenoid valve 451 and a second solenoid valve 452 are respectively provided on the separation box drain pipe aggregation assembly 450. The first solenoid valve 451 is located below the first drain port 413, and the second solenoid valve 452 is located below the second drain port 414. The connecting pipes between the first drain port 413 and the first solenoid valve 451 and between the second drain port 414 and the second solenoid valve 452 are both hoses. A plurality of air pipe fixing holes 461 are formed on the cylinder protection seat 460. The first elastic support assembly 470 includes a first spring 471, a second connecting cylinder 472, and a second fixing seat 473. Both ends of the first spring 471 are connected to the second connecting cylinder 472. A second spring 481 is provided inside the second elastic support assembly 480.

[0065] The separation box support frame 500 is connected to the cylinder protection seat 460 at the bottom of the solid-liquid separation component 400; there are two separation box support frames 500, and the separation box support frame 500 includes a guide frame 510, a bearing seat 520 fixedly connected to the guide frame 510, and a bearing 530 located inside the bearing seat 520. The outer peripheries of the circular guide columns at the bottom of the guide frame 510 are respectively provided with a first fixing clamp 540 and a second fixing clamp 550. The first fixing clamp 540 and the second fixing clamp 550 are fastened by bolts to form a guide hole. When the weight of the separation box body 410 changes, the separation box body 410 and the separation box support frame 500 can move downward as a whole along the axis of the guide hole; when the liquid height in the C area of the separation box body 410 is lower than the set value, the separation box body 410 is in a horizontal state, and when the liquid height in the C area of the separation box body 410 is higher than the set value, the separation box body 410 deflects.

[0066] The cylinder assembly 600 is located inside the cylinder protection seat 460; the cylinder assembly 600 includes a cylinder housing 610, a cylinder top plate 620, a cylinder bottom plate 630, a piston 660, a piston rod 670, a piston rod connecting piece 680, and a fifth spring 690. The cylinder top plate 620 is located at the top of the cylinder housing 610 and is fixedly connected to it. The cylinder bottom plate 630 is located at the bottom of the cylinder housing 610 and is fixedly connected to it. The piston 660 is located inside the cylinder housing 610. The piston rod 670 is located at the top of the piston 660 and is fixedly connected to it. The piston rod 670 penetrates through the cylinder top plate 620, and the piston rod 670 and the separation box body 410 are connected through the piston rod connecting piece 680. The fifth spring 690 is located between the piston 660 and the cylinder bottom plate 630, and the fifth spring 690 is located inside the cylinder housing 610. The piston 660 divides the cylinder assembly 600 into two regions D and E. One side of the cylinder housing 610 close to the C area of the separation box body 410 is provided with a first air inlet pipe 641 and a second air inlet pipe 643. The first air inlet pipe 641 is connected to the D region of the cylinder assembly 600, and a first one-way valve 642 is provided on the first air inlet pipe 641. The second air inlet pipe 643 is connected to the E region of the cylinder assembly 600, and a second one-way valve 644 is provided on the second air inlet pipe 643. One side of the cylinder housing 610 close to the A area of the separation box body 410 is provided with a first exhaust pipe 651 and a second exhaust pipe 653. The first exhaust pipe 651 is connected to the D region of the cylinder assembly 600, and a third one-way valve 652 is provided on the first exhaust pipe 651. The second exhaust pipe 653 is connected to the E region of the cylinder assembly 600, and a fourth one-way valve 654 is provided on the second exhaust pipe 653. The gases in the first exhaust pipe 651 and the second exhaust pipe 653 both enter the aggregated exhaust pipe 655, and a fifth one-way valve 656 is provided on the aggregated exhaust pipe 655.

[0067] The slag removal component is located at the rear end of the solid-liquid separation component 400; the slag removal component includes an infusion shaft component 700 and a rotary drum component 800. The infusion shaft component 700 penetrates through the rotary drum component 800. The infusion shaft component 700 includes an infusion shaft 710 and an infusion shaft support component 720. The number of the infusion shaft support components 720 is two. The infusion shaft 710 penetrates through the infusion shaft support component 720 and is fixedly connected thereto. The infusion shaft 710 is successively a support shaft end 714, a liquid inlet shaft end 711, and an infusion shaft end 715 from left to right. The liquid inlet shaft end 711 and the infusion shaft end 715 are of a hollow structure. A first through hole 712 and a first groove 713 are provided on the liquid inlet shaft end 711. An axial end liquid outlet 716 is formed on the infusion shaft end 715.

[0068] The rotary drum component 800 includes a rotary drum 810, end covers 820, a fixed shell 830, a fixed shell gasket 840, and a sealing plate 850. The rotary drum 810 penetrates through the end covers 820 and the fixed shell 830. The end covers 820 are fixedly connected to both ends of the fixed shell 830 respectively. The end covers 820 and the fixed shell 830 are connected by bolts to form a fixed cylinder. The rotary drum 810 can rotate along the axis of the fixed cylinder. The fixed shell gasket 840 and the sealing plate 850 are located at the bottom of the fixed shell 830.

[0069] It should be noted that a quick connector is provided on the sealing plate 850 to facilitate the insertion of the aggregated exhaust pipe 655. The aggregated exhaust pipe 655 is a rubber hose. The position of the fifth one-way valve 656 is as close as possible to the sealing plate 850. A mesh plate is provided at the contact position between the quick connector and the rotary drum component 800 to prevent solid impurities in the rotary drum component 800 from falling into the aggregated exhaust pipe 655 through the quick connector.

[0070] A second through hole 811 is provided on the outer periphery of the rotary drum 810. A handle 812 and a third through hole 813 are provided on one side of the rotary drum 810 close to the axial end liquid outlet 716. A second groove 814 is provided in the third through hole 813. The end cover 820 is provided with a fourth through hole 821 and a ventilation hole 823. A third groove 822 is provided in the fourth through hole 821. A fixed shell feed inlet 831 is provided at the top of the fixed shell 830. A fixed shell slag discharge port 832 is provided at the bottom of the fixed shell 830; the number and specifications of the first through hole 712 and the second through hole 811 correspond to each other. The first through hole 712 and the second through hole 811 are both located on the inferior arc. Sealing structures are provided between the infusion shaft 710 and the rotary drum 810, and between the rotary drum 810 and the end cover 820. The mixture of small particle solids and working liquid enters the slag removal component from the fixed shell feed inlet 831. When the first through hole 712 and the second through hole 811 are communicated, the small particle solids are retained at the bottom of the fixed cylinder, and the working liquid is discharged from the axial end liquid outlet 716. After the rotary drum 810 is rotated 180 degrees, no working liquid is discharged from the axial end liquid outlet 716.

[0071] The second temporary storage barrel assembly 900 is located at the rear end of the slag removal assembly. A temporary storage barrel drain pipe 910 is provided at the outlet end of the second temporary storage barrel assembly 900, and a liquid extraction pump 911 is provided on the temporary storage barrel drain pipe 910. The working liquid in the second temporary storage barrel assembly 900 can be discharged into the liquid storage tank 110 through the liquid extraction pump 911. Since the working liquid has passed through the solid-liquid separation assembly 400 and the slag removal assembly for filtration successively, there will basically be no solid particles to wear the liquid extraction pump 911.

[0072] The present invention also provides a usage method of a working liquid recycling device for a numerical control machine tool. The usage method includes a working liquid recycling method S1, a large particle solid recovery method S2, and a small particle solid recovery method S3;

[0073] Among them: The working liquid recycling method S1 includes the following steps:

[0074] S11, the wire cutting main body 100 is used to process the workpiece to be machined 120. The working liquid flows out of the liquid storage tank 110 of the wire cutting main body 100 and is sprayed onto the surface of the workpiece to be machined 120. The working liquid and debris flow into the first temporary storage barrel assembly 200 together and flow into the solid-liquid separation assembly 400 through the temporary storage barrel liquid outlet pipe assembly 300;

[0075] S12, the large particle debris remains in the A area inside the separation box body 410 of the solid-liquid separation assembly 400, and the liquid flows to the B area, making the liquid levels in the A area and the B area equal;

[0076] S13, as the cutting work continues, the liquid levels in the A area and the B area of the separation box body 410 continue to rise, and the separation box body 410 and the separation box support frame 500 descend as a whole. The piston rod 670 drives the piston 660 to move downward, the volume in the E area of the cylinder assembly 600 decreases, the gas is pressurized, the fourth one-way valve 654 opens, and the pressurized gas flows into the rotating drum assembly 800 through the second exhaust pipe 653 via the aggregated exhaust pipe 655, making the solid debris in the rotating drum assembly 800 not easily form agglomerates. At this time, the volume in the D area of the cylinder assembly 600 increases, the air pressure decreases, the first one-way valve 642 opens, and external air enters the D area of the cylinder assembly 600;

[0077] S14, as the liquid level continues to rise, the liquid in the A area and the B area of the separation box body 410 will flow to the C area. When the liquid height in the C area of the separation box body 410 is higher than the set value, the separation box body 410 deflects, causing the third spring 418 to contact the induction switch 431 and feedback to the PLC control system;

[0078] S15. Meanwhile, open the first solenoid valve 451 and the second solenoid valve 452. The liquid in the separation tank body 410 flows into the slag removal component through the separation tank drain pipe assembly 450. At this time, the first through hole 712 and the second through hole 811 are in a connected state. Small particle solids deposit at the bottom of the fixed cylinder, and the liquid flows into the second temporary storage tank assembly 900 through the shaft end liquid outlet 716.

[0079] S16. After a preset time, close the first solenoid valve 451 and the second solenoid valve 452. At this time, under the combined action of the first spring 471, the second spring 481, and the fourth spring 442, the separation tank body 410 deflects in the reverse direction and returns to the horizontal state. At the same time, under the action of the fifth spring 690, the piston rod 670 drives the piston 660 to move upward. The volume in the D area of the cylinder assembly 600 decreases, the gas is pressurized, the third one-way valve 652 opens, and the pressurized gas flows into the rotating cylinder assembly 800 through the first exhaust pipe 651 and the aggregated exhaust pipe 655. At this time, the volume of the E area of the cylinder assembly 600 increases, the air pressure is lower than the atmospheric pressure, and the second one-way valve 644 opens, and the outside air enters the E area of the cylinder assembly 600.

[0080] S17. When the liquid level in the second temporary storage tank assembly 900 reaches the preset liquid level, start the liquid extraction pump 911 to pump the working liquid in the second temporary storage tank assembly 900 into the liquid storage tank 110.

[0081] Among them: The large particle solid recovery method S2 includes the following steps:

[0082] S21. On the basis of the above S12 step, when the large particle solids in the A area in the separation tank body 410 need to be cleaned, close the stop valve 201 when the liquid in the separation tank body 410 is emptied.

[0083] S22. Use an external support (not shown in the figure) to lift the induction cylinder 417. Under the combined action of the first spring 471, the second spring 481, and the fourth spring 442, the separation tank body 410 is in a "stuck" state, and open the sealing door 415.

[0084] S23. Utilize the inclined state of the separation tank body 410 to conveniently clean the large particle solids in the separation tank body 410 into a specified container.

[0085] S24. Close the sealing door 415, separate the external support from the induction cylinder 417. Under the combined action of the first spring 471, the second spring 481, and the fourth spring 442, the separation tank body 410 returns to the horizontal state.

[0086] S25. Open the stop valve 201.

[0087] Among them, the small-particle solid recovery method S3 includes the following steps:

[0088] S31. On the basis of the above S15 step, when the small-particle solid at the bottom of the fixed cylinder needs to be cleaned, rotate the rotary cylinder 810 by 180 degrees without liquid entering the slag removal component. At this time, the first through hole 712 and the second through hole 811 are in a completely non-connected state.

[0089] S32. Open the sewage valve at the bottom of the fixed cylinder to discharge the liquid at the bottom of the fixed cylinder.

[0090] S33. Close the sewage valve, separate the fixed shell gasket 840, the sealing plate 850 from the fixed shell 830, and discharge the small-particle solid from the fixed shell slag discharge port 832 into a designated container.

[0091] S33. Fasten the fixed shell gasket 840, the sealing plate 850 and the fixed shell 830 together by bolts.

[0092] S34. Rotate the rotary cylinder 810 by 180 degrees again. At this time, the first through hole 712 and the second through hole 811 are in a completely connected state.

[0093] It should be noted that observation windows are usually opened on the separation box body 410 and the fixed shell 830 to facilitate timely treatment of large-particle solids and small-particle solids. Further refer to the attached Figure 10 and the attached Figure 11 . These two drawings illustrate the situations in two extreme states. In actual use, the rotation angle can be adjusted as needed to make the first through hole 712 and the second through hole 811 in a partially connected state. At this time, the flow rate of the liquid outlet 716 at the shaft end will change.

[0094] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wire cutting working fluid recycling device, comprising a wire cutting body and a workpiece to be processed, characterized in that: It also includes a first temporary storage barrel assembly, a temporary storage barrel liquid outlet pipe assembly, a solid-liquid separation assembly, a separation box support frame, a cylinder assembly, a slag removal assembly, a second temporary storage barrel assembly and a PLC control system; One end of the temporary storage barrel liquid outlet pipe assembly is connected to the first temporary storage barrel assembly, and the other end is connected to the solid-liquid separation assembly; The separation box support frame is connected to the cylinder protection seat at the bottom of the solid-liquid separation component; The cylinder assembly is located inside the cylinder protection seat; The solid-liquid separation assembly also includes a separation box top cover, a trigger assembly, a reset assembly, a separation box liquid discharge pipe summary assembly, a first elastic support assembly and a second elastic support assembly, the separation box top cover is located at the top of the separation box body, the trigger assembly is located at a side of the separation box body away from the temporary storage bucket liquid discharge pipe assembly, the reset assembly is located at a side of the separation box body close to the temporary storage bucket liquid discharge pipe assembly, the separation box liquid discharge pipe summary assembly is located at the bottom of the separation box body and is connected thereto, one end of the first elastic support assembly is fixedly connected to the separation box body, and the other end is fixedly connected to the cylinder protection seat, one end of the second elastic support assembly is fixedly connected to the separation box body, and the other end is fixedly connected to the cylinder protection seat; The residue removal assembly includes an infusion shaft assembly and a rotary drum assembly, the infusion shaft assembly passes through the rotary drum assembly, the infusion shaft assembly includes an infusion shaft and an infusion shaft support assembly, the infusion shaft passes through the infusion shaft support assembly and is fixedly connected thereto, the infusion shaft includes a support shaft end, a liquid inlet shaft end and an infusion shaft end from left to right, the liquid inlet shaft end is provided with a first through hole and a first groove, and the infusion shaft end is provided with a shaft end liquid outlet; The drum assembly comprises a drum, an end cover plate, a fixed shell, a fixed shell sealing gasket and a sealing plate. The drum passes through the end cover plate and the fixed shell. The two ends of the fixed shell are respectively fixedly connected with the end cover plates. The end cover plate and the fixed shell are connected by bolts to form a fixed drum. The drum can rotate along the axis of the fixed drum. The fixed shell sealing gasket and the sealing plate are located at the bottom of the fixed shell. A second through hole is provided on the outer circumference of the rotating drum, a handle and a third through hole are provided on one side of the rotating drum close to the liquid outlet at the shaft end, a second groove is provided in the third through hole, a fourth through hole and an air vent are provided on the end cover plate, a third groove is provided in the fourth through hole, a fixed shell feed port is provided on the top of the fixed shell, a fixed shell slag discharge port is provided on the bottom of the fixed shell, and the number and specifications of the first through holes and the second through holes correspond to each other.

2. The wire cutting working fluid recycling device according to claim 1, characterized in that: The discharge end of the first temporary storage barrel assembly is provided with a stop valve, the main pipeline of the temporary storage barrel liquid outlet pipe assembly is a rubber hose, the outlet end of the second temporary storage barrel assembly is provided with a temporary storage barrel liquid discharge pipe, and the temporary storage barrel liquid discharge pipe is provided with a liquid pump.

3. The wire cutting working fluid recycling device according to claim 2, characterized in that: The separation box body is provided with a first filter screen plate and a second filter screen plate, and the separation box body is divided into three areas A, B and C by the first filter screen plate and the second filter screen plate. When working fluid flows into area A of the separation box body, solid particles in the working fluid are isolated in area A, and the liquid will be distributed in areas A and B. When the liquid in areas A and B reaches a preset height, the working fluid will flow to area C; a first drain port is provided at the bottom of area B of the separation box body, a second drain port is provided at the bottom of area C of the separation box body, a sealing door is provided on the side of area A of the separation box body away from area B, supporting shafts are provided on both sides of the separation box body, an induction cylinder is provided on the side of area C of the separation box body away from area B, a third spring is connected to the induction cylinder, a separation box deflection shaft is provided at the bottom of the separation box body, a separation box liquid inlet is provided on the top cover plate of the separation box, and the separation The liquid inlet of the box is located at the top of the A area of ​​the separation box body, the trigger assembly is provided with an induction switch, the reset assembly includes a first connecting tube, a fourth spring and a first fixed seat, both ends of the fourth spring are connected to the first connecting tube, the separation box drain pipe summary assembly is respectively connected to the first drain port and the second drain port, the separation box drain pipe summary assembly is respectively provided with a first solenoid valve and a second solenoid valve, the first solenoid valve is located below the first drain port, the second solenoid valve is located below the second drain port, the connecting pipes between the first drain port and the first solenoid valve, and between the second drain port and the second solenoid valve are both hoses, a number of air pipe fixing holes are opened on the cylinder protection seat, the first elastic support assembly includes a first spring, a second connecting tube and a second fixed seat, both ends of the first spring are connected to the second connecting tube, and a second spring is provided in the second elastic support assembly.

4. The wire cutting working fluid recycling device according to claim 3, characterized in that: There are two separation box support frames, each of which includes a guide frame, a bearing seat fixedly connected to the guide frame, and a bearing located inside the bearing seat. The guide frame is respectively provided with a first fixing card and a second fixing card, and the first fixing card and the second fixing card are fastened by bolts to form a guide hole. When the weight of the separation box body changes, the separation box body and the separation box support frame move downward along the axis of the guide hole as a whole; when the liquid height in the C area of ​​the separation box body is lower than the set value, the separation box body is in a horizontal state, and when the liquid height in the C area of ​​the separation box body is higher than the set value, the separation box body is deflected.

5. The wire cutting working fluid recycling device according to claim 4, characterized in that: The cylinder assembly includes a cylinder housing, a cylinder top plate, a cylinder bottom plate, a piston, a piston rod, a piston rod connecting piece and a fifth spring. The cylinder top plate is located at the top of the cylinder housing and is fixedly connected thereto, the cylinder bottom plate is located at the bottom of the cylinder housing and is fixedly connected thereto, the piston is located inside the cylinder housing, the piston rod is located at the top of the piston and is fixedly connected thereto, the piston rod passes through the cylinder top plate, and the piston rod is connected to the separation box body through the piston rod connecting piece. The fifth spring is located between the piston and the cylinder bottom plate. The piston divides the cylinder assembly into two areas, D and E. A first intake pipe is provided on one side of the cylinder housing close to the C area of ​​the separation box body. and a second intake pipe, the first intake pipe is connected with the D area of ​​the cylinder assembly, the first intake pipe is provided with a first one-way valve, the second intake pipe is connected with the E area of ​​the cylinder assembly, the second intake pipe is provided with a second one-way valve, a first exhaust pipe and a second exhaust pipe are provided on the side of the cylinder housing close to the A area of ​​the separation box body, the first exhaust pipe is connected with the D area of ​​the cylinder assembly, the first exhaust pipe is provided with a third one-way valve, the second exhaust pipe is connected with the E area of ​​the cylinder assembly, the second exhaust pipe is provided with a fourth one-way valve, the gases in the first exhaust pipe and the second exhaust pipe both enter the aggregate exhaust pipe, and the aggregate exhaust pipe is provided with a fifth one-way valve.

6. The method for using the wire cutting working fluid recycling device according to claim 5, characterized in that: The use method includes a working fluid circulation use method S1, a large particle solid recovery method S2 and a small particle solid recovery method S3; Wherein: the working fluid circulation method S1 comprises the following steps: S11, the workpiece is processed by the wire cutting body, the working fluid flows out from the liquid storage tank of the wire cutting body and is sprayed onto the surface of the workpiece, the working fluid and the debris flow into the first temporary storage barrel assembly together, and then flow into the solid-liquid separation assembly through the temporary storage barrel liquid outlet pipe assembly; S12, large particle debris is retained in area A of the separation box of the solid-liquid separation component, and the liquid flows to area B, so that the liquid levels of area A and area B are equal; S13, as the cutting work continues, the liquid levels in the A and B areas of the separation box body continue to rise, the separation box body and the separation box support frame descend as a whole, the piston rod drives the piston to move downward, the gas in the E area of ​​the cylinder assembly is pressurized, and the pressurized gas flows into the drum assembly through the second exhaust pipe and the collecting exhaust pipe, so that the solid debris in the drum assembly is not easy to form agglomerates. At this time, the volume of the D area of ​​the cylinder assembly increases, the air pressure decreases, and the outside air enters the D area of ​​the cylinder assembly; S14, as the liquid level continues to rise, the liquid in the A area and the B area of ​​the separation box body will flow to the C area. When the liquid height in the C area of ​​the separation box body is higher than the set value, the separation box body is deflected, so that the third spring contacts the induction switch and is fed back to the PLC control system; S15, open the first solenoid valve and the second solenoid valve at the same time, and the liquid in the separation box body flows into the slag removal assembly through the separation box discharge pipe collection assembly. At this time, the first through hole and the second through hole are in a connected state, small particles of solid are deposited at the bottom of the fixed cylinder, and the liquid flows into the second temporary storage barrel assembly through the shaft end liquid outlet; S16, after a preset time, the first solenoid valve and the second solenoid valve are closed. At this time, under the joint action of the first spring, the second spring and the fourth spring, the separation box body is reversely deflected and restored to a horizontal state. At the same time, under the action of the fifth spring, the piston rod drives the piston to move upward, and the gas in the D area of ​​the cylinder assembly is pressurized. The pressurized gas flows into the drum assembly through the first exhaust pipe and the collecting exhaust pipe. At this time, the volume of the E area of ​​the cylinder assembly increases, the air pressure decreases, and the outside air enters the E area of ​​the cylinder assembly; S17, when the liquid level in the second temporary storage barrel assembly reaches a preset liquid level, the liquid pump is started to pump the working liquid in the second temporary storage barrel assembly into the liquid storage tank; Wherein: the large particle solid recovery method S2 comprises the following steps: S21, based on the above step S12, when large solid particles in area A in the separation box need to be cleaned, the stop valve is closed when the liquid in the separation box is emptied; S22, using external support to lift up the induction cylinder, under the joint action of the first spring, the second spring and the fourth spring, the separation box body is in a "stuck" state, and the sealing door is opened; S23, using the separation box body being in an inclined state, the large solid particles in the separation box body are conveniently cleaned into a designated container; S24, close the sealing door, separate the external support from the induction cylinder, and under the joint action of the first spring, the second spring and the fourth spring, the separation box body returns to a horizontal state; S25, open the stop valve; Wherein: small particle solid recovery method S3 comprises the following steps: S31, based on the above step S15, when the small solid particles at the bottom of the fixed drum need to be cleaned, the drum is rotated 180 degrees without liquid entering the slag removal assembly, and the first through hole and the second through hole are in a completely disconnected state; S32, opening the drain valve at the bottom of the fixed cylinder to discharge the liquid at the bottom of the fixed cylinder; S33, close the drain valve, separate the fixed shell sealing gasket and the sealing plate from the fixed shell, and discharge the small solid particles from the fixed shell slag discharge port to a designated container; S33, fastening the fixed shell sealing gasket, the sealing plate and the fixed shell with bolts; S34, rotating the drum 180 degrees again, at which time the first through hole and the second through hole are in a fully connected state.

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