957 results about "Fiberboard" patented technology

According to the emulsion mixing equipment applied to the mixing field and used for aluminum oxide composite fiberboard production, through a guide cylinder which forms an annular gap with the inner wall of a tank body in an enclosing mode and a stirring assembly arranged on the lower portion of the guide cylinder, raw materials circularly flow between the annular gap and an inner cavity of the guide cylinder, and the stirring assembly and a shearing assembly act synergistically; firstly, raw materials fully flow, components are promoted to be uniformly dispersed, local concentration difference is avoided, a foundation is laid for stable emulsification, agglomeration and precipitation are reduced, the emulsification efficiency and quality are improved, meanwhile, by means of a plurality of heat exchange structures such as a tank shell wall cooling clamping cavity, a spiral heat exchange pipe, an emulsification stator inner heat exchange channel and a guide cylinder shell wall spiral channel, sufficient heat exchange is achieved, and the emulsification efficiency and quality are improved. The raw material temperature is effectively controlled, heat accumulation and overheating are reduced, and the gelation probability is reduced.

The invention relates to the technical field of gypsum fiberboard raw material treatment, in particular to a plant fiber for a gypsum fiberboard and a preparation method and application thereof. Compared with the prior art, the preparation method provided by the invention adopts specific process steps, plant fiber raw materials are softened by using a supersaturated calcium hydroxide solution to partially remove lignin, the treated plant fiber slurry is introduced into a sulfuric acid solution for neutralization in the water washing process, and generated nano-scale calcium sulfate particles are attached to the surfaces of the plant fibers, so that the surface of the plant fibers is uniform. The plant fiber coagulant plays a role of a coagulant during production of the gypsum fiberboard, and the plant fiber meeting the requirements of production of the gypsum fiberboard is prepared. The preparation method provided by the invention is low in cost, and the gypsum fiberboard prepared from the obtained plant fiber for the gypsum fiberboard has relatively high mechanical property indexes and meets the performance requirements of boards for building decoration.

The invention discloses a method and device for predicting abrasive particle impact damage on the surface of a carbon fiber plate, relates to the field of aerospace material performance research, and can solve the problem that the evolution process of damage to the carbon fiber plate caused by micro-scale abrasive material impact cannot be directly observed and obtained in real time at the present stage, and the method comprises the steps that a gas-solid two-phase flow field model in a nozzle is established; setting a discrete phase injection source in CFD simulation software, and determining abrasive particle motion data according to the gas-solid two-phase flow field model in the nozzle after grid division; establishing a three-dimensional model of the abrasive particles in finite element modeling simulation software and carrying out grid division; a carbon fiber plate model is established in explicit dynamics simulation software, the abrasive particle three-dimensional model obtained after grid division is imported into the carbon fiber plate model, the initial impact speed of the abrasive particles on the carbon fiber plate model is set according to abrasive particle motion data obtained through calculation of CFD software, and the damage result of the carbon fiber plate is determined through impact simulation calculation of the abrasive particles on the carbon fiber plate. The method is used for simulating and predicting the damage caused by impact of the microscale abrasive on the carbon fiber plate.

The invention belongs to the technical field of preparation of ceramic materials, and provides a preparation method of a low-expansion high-strength ceramic fiber board. The preparation method comprises the following steps: mixing ceramic powder and fibers in water according to a certain proportion, and dispersing in ultrasonic equipment; adding a flocculating agent, and slowly stirring to obtain a flocculated block mass; putting the flocculated block mass into a mold for shaping, and separating the flocculated flocculated block mass from water through a filtering device; putting the mold filled with the flocculation block into a drying oven, and drying to obtain a block body consisting of loose fibers and ceramic powder; putting the mold filled with the loose blocks into silica sol for dipping, and removing redundant silica sol through a filter pressing device to obtain a ceramic fiber board; and drying and sintering the pressed ceramic fiber board to finally obtain the high-strength ceramic fiber board. The strength and hardness of the ceramic fiber board are greatly improved, and compared with a traditional silica sol fiber board dipping technology, the preparation technology effectively improves the dipping efficiency and the dipping integrity of the fiber board, and the service performance of the fiber board under the extreme condition is improved.

The present invention relates to a composition (the composition of the invention) comprising a component A consisting of a polylysine component, an XL component and a fibrous component consisting of at least one fibrous element comprising plant fibers, and wherein the fibrous element is free of any other fibers other than plant fibers, and wherein the component A consists of a polylysine component, an XL component, and a fibrous component consisting of at least one fibrous element comprising plant fibers. And the composition does not contain any fibers other than the plant fibers of the fiber component. The invention further relates to a method for obtaining an object from the composition according to the invention. The invention further relates to objects (objects of the invention) obtained by said method, such as sheets, strips, bars, strips, films, cloths, containers, panels, panels, beams, frames, slats, engineered wood, such as fiberboards. The invention further relates to an article (article of the invention) comprising a) a component that is solid at 23 DEG C and 1 atm; and one or both of b) and c) wherein b) is the composition of the invention and c) is the object of the invention. The invention further relates to various uses of any one or any combination of the composition of the invention, the object of the invention and the article of the invention.

The present invention relates to a composition (the composition of the invention) comprising a component A consisting of a polylysine component, an XL component and a fibrous component consisting of at least one fibrous element comprising plant fibers, and wherein the fibrous element is free of any other fibers other than plant fibers, and wherein the component A consists of a polylysine component, an XL component, and a fibrous component consisting of at least one fibrous element comprising plant fibers. And the composition does not contain any fibers other than the plant fibers of the fiber component. The invention further relates to a method for obtaining an object from the composition according to the invention. The invention further relates to objects (objects of the invention) obtained by said method, such as sheets, strips, bars, strips, films, cloths, containers, panels, panels, beams, frames, slats, engineered wood, such as fiberboards. The invention further relates to an article (article of the invention) comprising a) a component that is solid at 23 DEG C and 1 atm; and one or both of b) and c) wherein b) is the composition of the invention and c) is the object of the invention. The invention further relates to various uses of any one or any combination of the composition of the invention, the object of the invention and the article of the invention.

The invention discloses a honeycomb structure wave-absorbing composite material based on resistive films and a preparation method thereof. The honeycomb structure wave-absorbing composite material comprises a glass fiber board skin layer, a first resistive film layer, a first honeycomb dielectric layer, a second resistive film layer, a second honeycomb dielectric layer, a third resistive film layer and a metal backboard. All the layers are connected through a bonding layer. According to the honeycomb structure wave-absorbing composite material based on the resistive film and the preparation method thereof, the sheet resistance in the first resistive film layer, the second resistive film layer and the third resistive film layer is controllable and customizable, so that impedance matching can be regulated and controlled by regulating and controlling the sheet resistance gradient of the resistive film, the process parameters are more stable, the broadband (2-18GHz) wave-absorbing performance is good, and the application prospect is wide. The first honeycomb dielectric layer and the second honeycomb dielectric layer do not need secondary processing, so that the wave-absorbing performance is endowed, and the resistive film is easy to prepare; in addition, the wave-absorbing composite material prepared by the invention is thin in structural material thickness, light in weight, capable of effectively absorbing a wide frequency band and easy to process.

The invention relates to the technical field of carbon fiber plate detection, and discloses a carbon fiber processing quality detection device and a detection method.The carbon fiber processing quality detection device comprises a workbench, the upper surface of the workbench is provided with two detection piece bearing assemblies which are used for placing a carbon fiber plate needing to be detected in a side-standing mode, and the two detection piece bearing assemblies are arranged in a mirror image mode; an extrusion unit is arranged on the upper surface of the workbench and located on one side of the two detection piece bearing assemblies and used for extruding the side edge of the carbon fiber plate, and a bending degree detection unit is arranged on the upper surface of the workbench and located on the other side of the two detection piece bearing assemblies and used for detecting the resilience degree of the extruded carbon fiber plate. According to the invention, through the arrangement of the detection piece bearing assembly, a carbon fiber plate to be detected can be placed on the device in a side-standing manner, so that the error of an experiment result caused by the weight of the carbon fiber plate when the carbon fiber plate lies flat is effectively reduced.

The disclosure relates to compositions including a constituent—A, which constituent—A consists of a polylysine component, a XL-component, and a fibrous component which fibrous component consists of at least one fibrous element which fibrous element includes vegetable fibers, and where the fibrous element is free of any fibers other than the vegetable fibers, where and the composition is free of any fibers other than the vegetable fibers of the fibrous component. The disclosure further relates to processes for obtaining an object from the compositions. The disclosure further relates to objects such as sheets, tapes, sticks, strips, films, cloths, containers, boards, panels, beams, frames, planks, engineered wood e.g. fibreboards obtained by said processes.

The invention relates to the technical field of density fiberboard conveyors, in particular to an intelligent suspension conveying device for medium density fiberboard production, which comprises a suspension conveyor and two groups of lifting and clamping assemblies, the lifting and clamping assemblies are used for clamping and lifting boards, the suspension conveyor is used for suspending and conveying the boards, and the lifting and clamping assemblies are used for clamping and lifting the boards. The clamping and lifting assemblies are matched with the suspension conveyor, one side of the plate can be lifted to the suspension conveyor, the plate is conveyed in a vertical state in the suspension process, then the horizontal space of the plate can be converted into the vertical space, the plate can be conveyed in the vertical state, the plate can be conveyed in the vertical state, and therefore the plate can be conveyed in the vertical state, and the plate can be conveyed in the vertical state. And meanwhile, one suspension conveyor is matched with the two clamping and lifting assemblies, the clamping and lifting time needed by the clamping and lifting assemblies can be saved, after one plate is hooked, the next plate can be rapidly transferred and hooked, and the suspension space is fully utilized.

A method for testing the heat insulation performance of a thermal barrier coating comprises the following steps: preparing a set of plasma flame spraying equipment, preparing a metal sheet, and spraying the thermal barrier coating on the surface of the metal sheet to prepare a coating sample; preparing a high-temperature electric furnace and an aluminum oxide fiberboard with the same size as a furnace door brick, embedding the metal sheet into the aluminum oxide fiberboard, and exposing the coating surface and the back surface of the metal sheet; opening a furnace door of the high-temperature electric furnace, sealing the furnace door by using the cut aluminum oxide fiber plate as a furnace door brick, and embedding the metal sheet into the aluminum oxide fiber plate in the direction that the coating surface faces the interior of the furnace; setting a heating program of the electric furnace to heat the electric furnace to a temperature required to be tested; testing the temperature of the back surface, exposed in the air, of the metal sheet by using a laser thermometer; the steps are repeated for multiple times, the difference value between the furnace temperature and the back temperature is recorded, and the average value is calculated and can serve as the judgment basis of the heat insulation performance of the thermal barrier coating. The method is simple and convenient to operate, accurate in test condition and high in practical application value.

The present disclosure relates to a method for making fiberboard with a system comprising a plug flow screw, a cooker, a refiner, a blowline, and a press. The method comprises a), introducing woodchips to the plug flow screw; b). passing the woodchips through the plug flow screw to the cooker, c). adding a soy component having a protein dispersibility index (PDI) less than 50 to the cooker, d). passing the woodchips from step c) through the refiner to produce glued refiner wood fibers, e). passing the glued refiner wood fibers from d) through the blowhne to produce pressable wood fibers, f). optionally adding a water retardant, and g). pressing the pressable wood fibers under heat and pressure to form the fiberboard.

The invention discloses a composite fiberboard and a preparation method thereof, and belongs to the technical field of artificial boards. Comprising the following raw materials in parts by weight: 34-45 parts of wood fiber, 17-26 parts of composite resin, 7-13 parts of hydroxymethyl cellulose, 5-9 parts of aluminate cement, 4-8 parts of talcum powder, 11-16 parts of polyvinyl alcohol, 9-14 parts of polyvinyl acetate emulsion, 7-11 parts of urea-formaldehyde resin adhesive, 5-9 parts of polyacrylate and 1.2-2.5 parts of a composite coupling agent. According to the composite fiberboard, the water resistance of the composite fiberboard can be improved, and the problem that harmful substances containing formaldehyde and the like are released is solved.

The invention relates to the technical field of wharf structures, and discloses a wharf structure reinforced by basalt fiberboards, which comprises a pile foundation, a pile cap mounted at the top of the pile foundation, a prefabricated cross beam mounted at the top of the pile cap and a panel mounted at the top of the cross beam, an insertion groove for insertion of the insertion plate is prefabricated in the top of the pile cap, a first prefabricated hole is prefabricated in the insertion plate, second prefabricated holes are prefabricated in the two sides of the insertion groove, a split bolt is arranged in the first prefabricated hole, and the two ends of the split bolt are located in the two second prefabricated holes correspondingly and are in threaded connection with limiting nuts correspondingly; basalt fiber boards are prefabricated at the bottoms of the cross beams and abut against the pile caps. The stability of the wharf structure can be improved.

The utility model relates to the technical field of glass fiber board production, in particular to an edge grinding device for a glass fiber board, which comprises a rack, a grinding wheel, a grinding wheel and a grinding wheel, the roller group is mounted on the top surface of the workbench and is driven by the power mechanism to convey the glass fiber plate in the front-back direction; the pressing plate assembly is provided with a liftable support, and at least one rolling wheel used for being pressed on the top face of the glass fiber plate is arranged at the bottom of the support; and the two polishing assemblies are installed on the cross beam, located on the left side and the right side of the glass fiber board and provided with flexible polishing heads driven by a motor, and the flexible polishing heads make contact with the edge of the glass fiber board.

The utility model discloses a kind of basalt fiberboard sound barriers, belong to sound barrier technical field, including concrete bottom beam, its upper fixedly arranged with the support column of array arrangement;Barrier main body, it is by several fiber baffle from top to bottom splicing and is constituted, the fiber baffle includes plate main body, its both ends are fixedly arranged with mounting clamping block;Among them, the back of the support column both sides are all opened with several groups of installation slot corresponding with mounting clamping block.The technical points are: the mounting clamping block of fiber baffle both sides is aligned with the installation slot on support column, i.

The utility model discloses a molten aluminum runner prefabricated part structure with a thermal insulation layer, which belongs to the technical field of metal diversion trenches and comprises a base, a diversion trench and a top cover. The flow guide groove is composed of a high-temperature contact plate, a ceramic fiber plate, a reflecting film and a protective shell which are sequentially connected from inside to outside in a sleeved mode, the top cover is connected to the top of the flow guide groove, the top cover seals the top of the flow guide groove, and heat loss generated when aluminum water flows can be reduced; the heat preservation performance in the aluminum water conveying process can be remarkably improved, and oxidation and pollution are reduced.

The utility model discloses a fixing device for carbon fiber plate production, which comprises a mounting plate, a clamping mechanism is arranged at the top of the mounting plate, an electric telescopic rod is fixedly connected to the top of the mounting plate, a supporting plate is fixedly connected to the top end of the electric telescopic rod, and a plurality of guide sleeves are fixedly inserted into the top of the supporting plate. A sliding rod is slidably inserted into the top end of the guide sleeve, a second spring sleeves the bottom end of the sliding rod, the bottom end of the second spring is fixedly connected with the inner wall of the bottom of the guide sleeve, the top end of the second spring is fixedly connected with the sliding rod, a rubber pad adheres to the top end of the sliding rod, and the clamping mechanism comprises a plurality of supporting blocks. The supporting plate is driven by the electric telescopic rod to move upwards, so that the rubber pad and the carbon fiber plate are supported, the sliding rod moves in the guide sleeve, different positions of the carbon fiber plate are flexibly supported under the action of the second spring, and the carbon fiber plate is prevented from being damaged.

The invention relates to a natural building material panel consisting of individual blanks made of clay and loam, which are arranged seamlessly and offset and are connected by force. Since the individual components (blanks) are already dry, the panel production process is not subject to drying shrinkage, and the final panel can be as large as an entire wall. The overlaps and the fully bonded paper reinforcements on the top and bottom surfaces, as well as between the layers, provide sufficient reinforcement to withstand flexural loads. The internal reinforcements are temporarily protected by the resting blanks in case of fire or water, thus keeping the plate dimensionally stable for longer.

The invention discloses a tray device for silicon wafer film forming and a film forming method, and the tray device comprises one or more carbon fiber plates which are used for bearing silicon wafers, and the boundary dimension and the number of the carbon fiber plates correspond to the coating area; the upper surface of the carrier is used for bearing the carbon fiber plates, the carrier corresponds to one or more carbon fiber plates, one or more through holes are formed in the carrier, the through holes are located below the tray and correspond to the carbon fiber plates one to one, and when the carrier bears the carbon fiber plates, the carbon fiber plates are placed on the carrier in a floating mode; the heater is made of a metal material, is grounded, is provided with a horizontal upper surface, and is positioned in the through hole when viewed in the vertical direction; the heater can move up and down, rises to enable the upper surface to be attached to the tray through the through hole, and supports the tray. Therefore, the boundary dimension and the number of the carbon fiber plates can be adjusted according to the coating area required by the PECVD process, so that the application range of the tray device for silicon wafer film forming is widened.

The process for the production of wood fiberboard comprises the step in which refined material from recycled wood fiberboards is wetted, heated and pressurized using steam; the step in which this material is kept under pressure and temperature for a certain amount of time, followed by the step of reducing the pressure of this material by at least 3 bar. After this pressure reduction, the material is transformed into recycled wood fibers, possibly with a fraction of wood fiber clumps and any other impurities. The recycled wood fibers are supplied as feedstock in a production line for producing wood fiberboard.

The application provides a high-heat-resistance high-modulus carbon fiber plate and a manufacturing method thereof, and relates to the technical field of carbon fibers.The high-heat-resistance high-modulus carbon fiber plate comprises a carbon fiber base plate, a wear-resistant layer and a heat-resistant layer, the wear-resistant layer is arranged on the outer surface of the carbon fiber base plate, the heat-resistant layer is arranged on the outer surface of the wear-resistant layer, the carbon fiber base plate is composed of at least five layers of carbon fiber yarns impregnated with matrix resin and then heat-pressed and solidified, and the matrix resin comprises 10-20 parts of ceramic fibers and 2-6 parts of a mixed curing agent of E-300 and DDM.The application uses a special matrix resin for impregnation of carbon fiber yarns, ceramic fibers and magnesium hydroxide particles are added to the resin, the heat resistance of the resin is improved, the ceramic fibers and magnesium hydroxide particles are pressed into the multiple layers of the carbon fiber base plate along with the resin, the overall heat resistance is improved, the surface-coated heat-resistant layer is matched, the temperature resistance effect is provided when the plate body is externally coated, and compared with common carbon fiber plates, the plate body prepared by the application has better heat resistance.

The utility model discloses a cement fiberboard laminating device which comprises a side support, a side groove formed in the side support and a rotating rod installed in the side groove, and further comprises a laminating roll and a side plate connected to the outer side of the laminating roll, the outer side wall of the side plate is connected into the rotating rod through an elastic mechanism, the inner side of the rotating rod is connected with a side installation plate, and the side installation plate is connected with the laminating roll. The elastic mechanism comprises limiting grooves formed in the side mounting plates, limiting insertion blocks are inserted into the limiting grooves, the limiting insertion block on one side is connected with an elastic piece, the elastic piece is connected into a first open groove, the first open groove is formed in the side plate on the same side, and sliding rails are symmetrically arranged in the first open groove. According to the utility model, under the matching use of the elastic mechanism and the clearance fit effect between the two groups of side brackets, the installation work of replacing new and old film rolls is completed, the tedious step that the side brackets need to be disassembled in the traditional device is effectively solved, and the convenience and efficiency of replacing the film rolls are ensured.

The application discloses a production method of wood material surface metallic paint and belongs to the technical field of wood paint. The production method of the wood material surface metallic paint is characterized in that the scale-shaped metallic powder pigment is arranged in a multi-layer ordered superposition mode, a barrier layer is provided for corrosive medium, shrinkage residual stress is improved to avoid corrosion, the strength of the paint film is improved, the hardness of the paint film is high after solidification, the paint film is resistant to scratching, the vinyl ester resin and the polyurethane powder are mixed to improve the toughness of the paint film, the metallic powder is uniformly dispersed through the polyurethane powder, the defects caused by uneven dispersion such as color difference and local corrosion are reduced, the wood material can be applied to various wood materials such as solid wood, shaving board and fiber board, and the wood material can exhibit a luxurious and gorgeous visual effect, in addition, the wood material has excellent physical and mechanical properties, chemical resistance and weather resistance and the like, and is suitable for the surface treatment of various wood, shaving board and fiber board and can enhance the gloss, brightness and depth of the wood.

A process for producing a fiberboard from wood fibers and / or other lignocellulosic fibers using a wet process, in which water (9) is added to the fibers (7) to form a suspension (10) with a fiber content of 10 wt.% or less, in which the suspension (10) is pumped onto a long screen (11) and dewatered by gravity to form a fiber fleece cake (13), characterized in that the fiber fleece cake (13) is fed to a squeezer (14) and mechanically dewatered to a residual moisture content of less than 20 wt.% to form a fiber fleece (16), and the fiber fleece (16) is then transferred to a continuously operating hot press (18) and pressed there to form a fiberboard (19) under heat input.

The invention relates to the technical field of bows and arrows, in particular to a manufacturing method of a bow handle, a bow body of a split structure and a bow and arrow. The manufacturing method of the bow handle comprises the steps that S1, multiple layers of carbon fiber prepreg cloth are sequentially laid in a mold, and then a carbon fiber plate with the thickness being H is obtained through mold pressing and curing at the set temperature; s2, the carbon fiber plate is subjected to hollowed-out part cutting and buried hole machining; and S3, carbon fiber prepreg cloth is pasted on the side face of the hollowed-out carbon fiber plate obtained in the step S2 for edge sealing, then mold pressing curing is conducted at the set temperature, an upper bow handle, a middle bow handle or a lower bow handle is obtained, and after assembling, overall laying is conducted to form the bow handle. The technical problems that in the prior art, a bow body is generally large in weight, cannot be lightened, and is poor in torsion resistance and damping effect are solved.

The utility model provides a kind of furniture processing in medium fiberboard pastes wood skin corner laminator, it is related to furniture processing technical field, including workbench and support, the inside of support is equipped with mounting bracket, the surface of support is fixedly installed with hydraulic cylinder, the inside of mounting bracket is equipped with laminating mechanism, the surface of workbench is slidably connected with clamping plate, the side of clamping plate is equipped with protective pad.The utility model drives screw rod to rotate by starting motor two drive, so that sliding block slides along slide bar two, so as to adjust the position of laminating roller, can carry out laminating operation to the different position of medium fiberboard corner, and the cooperation of telescopic block, positioning plate and tension spring, so that positioning plate can adapt to the shape of medium fiberboard corner, play accurate positioning effect in laminating process, while laminating roller can apply uniform pressure to wood skin, ensure that wood skin and medium fiberboard corner are closely laminated, effectively solve the problem that corner lamination is not firm, edge lifting and the like, improve furniture processing quality.

This utility model relates to the field of cement fiberboard assembly technology, and particularly to a cement fiberboard curtain wall structure, including a receiving and mounting base. The receiving and mounting base has a positioning groove with a through front end on both the left and right sides of its inner lower wall. A bolt is threadedly connected to the lower center of the receiving and mounting base. The inner rear wall of the receiving and mounting base has four T-shaped slots with through upper ends. A positioning rectangular groove with a through upper end is located in the center of the inner rear wall of the receiving and mounting base, between two adjacent T-shaped slots. A curtain wall panel installation structure is provided within the receiving and mounting base. This utility model's cement fiberboard curtain wall structure, by providing positioning grooves and T-shaped slots in the receiving and mounting base, combined with the curtain wall panel installation structure and curtain panel installation reinforcement structure, achieves precise positioning and stable installation of the cement fiberboard, effectively improving the curtain wall's sealing performance and overall stability.

The utility model discloses an ecological board surface spraying structure, and particularly relates to the technical field of ecological boards, wood fibers or other natural fibers are mixed with resin to form the ecological board surface spraying structure, the ecological board surface spraying structure has good strength and durability after being pressed, mineral filler is filled in a fiber board layer, the hardness, the pressure resistance and the abrasion resistance of the board are improved, and the ecological board surface spraying structure is more environment-friendly. The reinforcing layers are located on the two sides of the fiberboard layer, each reinforcing layer comprises a hot melt adhesive film, a UV coating and a polymer plastic board layer and is used for improving the structural strength and the overall stability, the waterproof layer comprises a polypropylene coating, a PU coating and a polyurethane coating, the waterproof performance is effectively improved, water is prevented from invading the fiberboard layer, and the bending resistance of the board is enhanced through the reinforcing layers; the waterproof layer effectively prolongs the service life of the ecological board, protects the ecological board from being influenced by a humid environment, keeps the functions of the ecological board unchanged for a long time, and comprehensively applies a coating technology, so that the ecological board meets higher requirements in the aspects of strength, durability and waterproof performance.

The utility model provides a cooling device for processing a transmission part of an electric vehicle, which comprises a cooling box, one side of the cooling box is fixedly connected with a purification box, the inner wall of the purification box is fixedly connected with a rough filtration chute block, the inner part of the rough filtration chute block is slidably connected with a rough effect non-woven fabric plate, and the rough effect non-woven fabric plate is fixedly connected with the purification box. The cooling device comprises a purification box, the inner wall of the purification box is fixedly connected with a medium filtering sliding groove block, the interior of the medium filtering sliding groove block is slidably connected with an activated carbon fiber board, and the inner wall of the purification box is fixedly connected with a fine filtering sliding groove block. A multi-stage air purification system is formed by the purification box connected with the purification box, the coarse filtration sliding groove block, the coarse-effect non-woven fabric plate, the medium filtration sliding groove block, the activated carbon fiber plate, the fine filtration sliding groove block and the efficient filter paper plate, and steam containing harmful substances and formed by evaporation of high-temperature cooling liquid generated in the machining process can be effectively filtered.