50results about How to "Solve the waste problem" patented technology

The invention discloses a method for producing potassium chloride, sodium chloride and a magnesium sheet from bittern extracted from a carnallite mine. The method provided by the invention comprises the following steps of 1, decomposing carnallite, 2, carrying out evaporation concentration, 3, separating carnallite, 4, preparing a mining injection agent, 5, carrying out heating dissolution and crystallization to obtain potassium chloride, 6, carrying out salt-leaching and drying to obtain sodium chloride, and 7, carrying out magnesium sheet processing. The method provided by the invention has the advantages that the hot mining injection agent is utilized for ore dissolution and thus a yield of sodium chloride and magnesium chloride is greatly reduced in production of per unit amount of potassium chloride because the solubility of potassium chloride is far greater than the solubility of sodium chloride and the solubility of magnesium chloride; a waste salt discharge amount of a follow-up process is reduced; a backfill amount is reduced obviously; a cost is reduced; comprehensive utilization of potassium and magnesium resources of carnallite is realized; and the economic benefits are high.

The invention discloses an automatic generation method of a cable bridge based on an EXCELVBA (visual basic for applications) technology and computer aided drawing. The method comprises the following steps: a, defining a weight conversion table of specification, cross area and unit length of a cable in a computer system; b, inputting a cable list and a routing table into the computer system; c, calculating the cable cross area capacity and weight of each branch section according to the cable list and the routing table; d, defining the cable cross area of a single-layer bridge to obtain the number of bridge layers of each branch section; and e, generating a material list, a cable bridge diagram, a cable passage trending schematic diagram and a cable network node diagram according to the number of bridge layers in the step d. According to the method, the cable bridge diagram and the material list can be generated automatically, so that cable construction and design checking are facilitated.

A process for preparing bamboo powder from raw bamboo or bamboo leftover includes such steps as cutting, breaking, drying while sterilizing at 80-280 deg.C, pulverizing by 40 meshes, and grinding by 40-200 meshes. Its advantages are stable water content, uniform granularity, and low cost.

The invention discloses a simple steel frame plywood formwork, which comprises borders and a panel fixedly connected with the frame, and is characterized in that the border is steel border, and the panel is a plywood panel; the top and the bottom of the outer side of the plywood panel are respectively connected with transverse ribs between the two borders, and a vertical rib is arranged between the top and the bottom of the outer side of the plywood panel positioned on a border; and preformed holes are arranged on the steel borders, and split bolt holes are arranged on the plywood panel. The invention also discloses an assembling method of the formwork. The formwork of the invention has light weight, high strength and convenient disassembly.

The invention discloses application of imine reductase and a mutant thereof in synthesis of (S)-1-aryl-1, 2, 3, 4-tetrahydroisoquinoline, and belongs to the field of enzyme engineering. The imine reductase provided by the invention is one of the following enzymes: IR45, IR96 and IR99 as shown in SEQ ID NO. 1-3, having corresponding coding nucleotides preferably as shown in SEQ ID NO. 1-3; the mutant of the imine reductase is one of mutants IR45-W191A and IR45-W191L of IR45 and mutant IR99-L173Aof IR99. The imine reductase or the mutant thereof can catalyze a compound of formula I to synthesize a compound of formula II, wherein R in the formula I and the formula II is hydrogen, methoxy or halogen; the catalysis efficiency is high; the obtained target product has high optical purity, simple post-processing and good environmental-protection and safety.

The invention discloses a material splitting method and a material splitting device. The material splitting method is characterized in that at least two rotary working tables capable of rotating are arranged around the outer side of a disk main cutting device which serves as a cutting center for wood leftover materials; a plurality of clamps for clamping the wood leftover materials are arranged in the circumferential directions of the rotary working tables, so that all the rotary working tables can drive the wood leftover materials on the clamps to get close to the disk main cutting device and cut the disk main cutting device when rotating; planetary disk cutting devices are arranged on the outer sides of the rotary working tables; in the vertical directions, the cutting heights of the planetary disk cutting devices are less than the height of the disk main cutting device; and the cutting stations of the planetary disk cutting devices are behind the disk main cutting device, so that the wood leftover materials are firstly cut by the disk main cutting disk and then enter the cutting stations of the planetary disk cutting devices, to realize fine cutting of the wood leftover materials. The material splitting method and the material splitting device are simple in structure and convenient to use, and the production cost is reduced.

The invention discloses a chromatograph sample bottle which comprises a bottle mouth and a bottle body, wherein, the bottle body is provided with an inlet tube and two outlet tubes and the inner cavity of the bottle body is provided with a sample tube; one end of the sample tube is connected with one of the outlet tubes, while the other end thereof is communicated with the inlet tube and the inner cavity of the chromatograph bottle body. The chromatograph sample bottle of the invention has special and novel structure and is convenient for storing flowing samples, especially suitable for storing samples with large flow or higher flow speed, and can be suitable for various chromatograph sample ways such as entering a sample needle and fetching the sample, thus solving the problems of sample storing, sample fetching and waste discharging of the flowing samples with large flow rate, being convenient for the real-time analysis of the samples in different reacting time segments, effectively increasing the accuracy of the analyzing result and establishing a basis for a comprehensive and accurate sample analysis.

The invention discloses a method for producing a foaming and cushioning material from wheat straw pulp screen residues, which comprises the following steps: adding wheat straw pulp screen residues into a pulp grinder, and pulping to disperse fiber bundles in the screen residues into individual fibers; after pulping, screening out fiber bundles greater than 2.2mm from the pulp, and concentrating the pulp to a dryness of 35-42%, thus obtaining a component A; uniformly mixing the component A with adhesive, foaming agent, crosslinking agent, lubricating agent and mold release agent; injecting into a mold, and foaming at 150-180 DEG C; and after the foaming process is finished and the material is set to a certain shape, cooling to 120-140 DEG C to dry, and then demolding to obtain the foaming and cushioning material. The method is simple, and the screen residues obtained from the pulping process can be fully used, thereby solving the problem of waste in paper-making production; and the obtained foaming material has low apparent density and high compression strength, and can be easily degraded, thereby reducing the environment pollution and having better economic and social benefits.

The invention relates to a penaeus japonicus head ACE (angiotensin converting enzyme) inhibiting peptide and a preparation method thereof. The amino acid sequence of the penaeus japonicus head ACE inhibiting peptide is His-Ala-Phe. The preparation method includes the steps: raw material pretreatment; ultrasonic-assisted enzymolysis; filter membrane ultrafiltration treatment; ion exchange column treatment; gel column treatment; reverse efficient liquid chromatography. The penaeus japonicus head ACE inhibiting peptide has strong ACE inhibiting activity, penaeus japonicus heads serve as raw materials, the problem of leftover generation in the processing process of penaeus japonicus is solved, and the penaeus japonicus head ACE inhibiting peptide has theoretical significance for further improving economic values of the penaeus japonicus. Besides, ultrasonic treatment is combined with protease enzymolysis, hydrolysis rate is increased, effective components in the raw materials are sufficiently extracted, extraction rate is increased, an extraction mode is mild, the effective components to be extracted cannot be damaged, and the penaeus japonicus head ACE inhibiting peptide with a reliable structure is obtained by multiple separation and purification and stepwise selection.

The invention relates to a penaeus japonicus anti-oxidative peptide. The amino acid sequence of the penaeus japonicus anti-oxidative peptide is shown as Gly-Asn-Gly-Leu-Pro. The invention further relates to a preparation method of the penaeus japonicus anti-oxidative peptide. The method comprises the following steps: raw material pretreatment; ultrasonic-assisted enzymolysis; ultrafiltration treatment; gel column treatment; reversed-phase high-performance liquid chromatography treatment. Compared with the prior art, the penaeus japonicus anti-oxidative peptide has higher antioxidant activity; the head of penaeus japonicus is taken as a raw material, so that the raw material source is wide, the cost is low, and the problem of production of leftovers in the processing process of the penaeus japonicus is solved; the penaeus japonicus anti-oxidative peptide has theoretical significance to further increase in the economic value of the penaeus japonicus; moreover, ultrasonic treatment and protease hydrolysis are combined, so that the hydrolysis rate is increased, effective components in the raw material are extracted fully, and the extraction rate is increased; moreover, the extraction manner is mild, and the effective components to be extracted are prevented from being damaged; meanwhile, the penaeus japonicus anti-oxidative peptide with a reliable structure can be obtained through multiple separation and purification, and gradual sieving.

The invention relates to a linear-section type immature soil wall with a built-in steel and wood mesh and a manufacturing method of the linear-section type immature soil wall with the built-in steel and wood mesh and belongs to the technical field of structural engineering. The linear-section type immature soil wall with the built-in steel and wood mesh is suitable for low-rise and multi-storey rural building structural systems. The steel and wood mesh which is composed of small-diameter wood and galvanized wires is arranged in the linear-section type immature soil wall. Compared with a traditional immature soil wall structure, the integrity is greatly improved, the anti-seismic property can be improved by 20%, and the bearing capacity can be increased by 25%; in addition, the small-diameter wood is fully developed and utilized, the problem of waste of the small-diameter wood is well solved, and environmental friendliness and low-carbon performance are really achieved.

The invention discloses a water-saving reverse osmosis (RO) machine. An outlet of a pretreatment filter element is communicated with a water inlet, and an outlet of the pretreatment filter element is communicated with an inlet of an RO treatment unit; a booster pump is arranged on an inlet pipeline of the RO treatment unit; a pure water outlet of the RO treatment unit is communicated with a pure water outlet; one end of a reflux pipe is communicated with a concentrated water outlet of the RO treatment unit, and the other end of the reflux pipe is communicated with the inlet of the pretreatment filter element; a high flow throttle valve is arranged on the reflux pipe; a pipeline where concentrated water from the concentrated water outlet of the RO treatment unit passes through is a circulating pipeline; an inlet of a low flow throttle valve is communicated with the circulating pipeline, and an outlet of the low flow throttle valve is emptied. According to the water-saving RO machine, the concentrated water flowing out of the concentrated water outlet of the RO treatment unit completely flows back to the inlet of the pretreatment filter element, and the discharge flow of the low flow throttle valve is obviously less than the discharge flow of a conventional throttle valve, so that the water-saving RO machine can remarkably improve the water resource utilization rate when used for producing water.

The invention discloses a deep drawing forming method for a metal housing of a deep cylindrical part and a multi-pass one-time forming die. The deep drawing forming method comprises the following specific steps of (1) performing blanking, (2) locating a plate, (3) pressing the plate with a blank holder 5, and (4) performing multi-pass one-time molding. The multi-pass one-time forming die comprisesa male die and a female die corresponding to the male die; the male die comprises a last-pass male die as well as an intermediate-pass male die and a first-pass male die which sequentially sleeve thelast-pass male die; the female die comprises a last-pass female die as well as an intermediate-pass female die and a first-pass female die which are sequentially arranged on the last-pass female die;the first-pass female die is provided with locating pins for locating the plate; and the edge pressing ring sleeves the first-pass male die. The trouble of positioning the plate in multiple times dueto transverse movement of a blank in a multi-pass multi-step continuous stamping process can be saved, the problems of waste materials, die clamping and the like generated during multi-pass multi-step deep drawing can be solved, and the production rhythm and rate can be increased.

The invention belongs to the field of chemical synthesis, and concretely provides a preparation method of dicyandiamide. The method comprises the following steps: a dehydration and polymerization reaction is carried out under existence of an acid binding agent triethylamine for urea and phosphorous oxychloride in order to obtain dicyandiamide; the reaction is carried out at 50 DEG C and at a normal pressure, and after the reaction ends, alkali washing, filtering, extraction and condensation are carried out in order to obtain dicyandiamide. Dehydration of urea is carried out in order to preparedicyandiamide, the waste residue problem generated in the traditional process can be effectively solved, and the method has the advantages of energy saving, green and environmental protection, high yield, simple process, and the like.

The invention discloses a method for producing a foaming and cushioning material from wheat straw pulp screen residues, which comprises the following steps: adding wheat straw pulp screen residues into a pulp grinder, and pulping to disperse fiber bundles in the screen residues into individual fibers; after pulping, screening out fiber bundles greater than 2.2mm from the pulp, and concentrating the pulp to a dryness of 35-42%, thus obtaining a component A; uniformly mixing the component A with adhesive, foaming agent, crosslinking agent, lubricating agent and mold release agent; injecting into a mold, and foaming at 150-180 DEG C; and after the foaming process is finished and the material is set to a certain shape, cooling to 120-140 DEG C to dry, and then demolding to obtain the foaming and cushioning material. The method is simple, and the screen residues obtained from the pulping process can be fully used, thereby solving the problem of waste in paper-making production; and the obtained foaming material has low apparent density and high compression strength, and can be easily degraded, thereby reducing the environment pollution and having better economic and social benefits.

The invention provides a combined die cutting die which is capable of reducing burr and improving die cutting size precision during die cutting. The combined die cutting die comprises a laser cutting die and an etching cutting die, wherein the laser cutting die comprises a laser cutting die plate and a cutter blade embedded in a seam of the surface of the laser cutting die plate, the etching cutting die comprises an etching cutting die plate and a cutter point formed on the surface of the etching cutting die plate, the etching cutting die plate is detachably connected onto the laser cutting die plate, and the cutter blade and the cutter point form a cutter of the combined die cutting die.

The invention discloses a method and a jig for manufacturing a light emitting diode (LED). The method comprises the following steps: a plurality of first supports and second supports are respectively formed and fixed on the jig in pairs, so that adjacent first support and second support are formed into a support group; then a chip is fixed on one of the supports to carry out routing operation; moreover, grain forming operation is carried out on each pair of support groups, thereby forming an LED finished product.

The invention relates to the technical field of building curtain walls, in particular to a house outer wall heat-insulating material pouring and decorating integrated construction system. The house outer wall heat-insulating material pouring and decorating integrated construction system comprises fixing assemblies fixedly connected to a wall to be subjected to decorating and heat insulating treatment, an edge closing groove is formed in each fixing assembly, and decorating plates are clamped into the edge closing grooves of the adjacent fixing assemblies. A cavity defined by the decorating plates arranged on the outer side of a house in an enclosing mode and the wall is filled with a heat-insulating material. According to the house outer wall heat-insulating material pouring and decoratingintegrated construction system, fasteners are fixed outside the wall surface, then the decorating plates are spliced and mounted between the fasteners, the cavity between the decorating plates and the wall is filled with the heat-insulating material in a poured mode, and thus cold-hot bridge existence is avoided; and the space between the decorating plates and the wall is densely filled with theheat-insulating material, so that gaps between a heat-insulating layer and the decorating plates as well as the heat-insulating layer and the wall are effectively eliminated, and the excellent heat-insulating effect is ensured accordingly.

Provided is a method for recycling stone coal navajoite waste slag. The method comprises the steps, mixing waste slag obtained after vanadium is extracted from stone coal navajoite, coke and starch according to the weight ratio of 50:(8-15):(0.8-1.5) to form a mixed material, performing ball milling, adding villiaumite reducing a melting point of the mixed material, and pressing to form honeycomb-shaped block pieces; placing the block pieces and quicklime in an electric arc furnace, and performing vacuum melting; enabling the adding amount of the quicklime to be subjected to the fact that thepH of furnace slag is controlled within a range between 1.5 and 2.5; after furnace burden in the electric arc furnace is fully melted, shaking the electric arc furnace to enable furnace liquid to fully react, and then discharging slag; adding chromium oxide with the purity not lower than 99% into the furnace burden after the slag is discharged so as to continue the reaction, and enabling C and Siimpurities in the furnace burden after the slag is discharged to be fully oxidized by adding chromium oxide; controlling the temperature of the electric arc furnace in the melting and reaction process of the furnace burden at 1,850K-1,950K; obtaining a primary product after cooling, layering and slag removal; and adding carbon powder with the quality purity not lower than 99% into the primary product, performing oxidation-reduction reactions in a vaccum furnace so as to reduce hydrogen content and oxygen content in the primary product and obtain a pure product.

The present invention involves the field of energy conservation and insulation in the building, and specially involves a decorative sound absorption and insulation structure for the interior wall of the building. The fastening part is connected to the wall.There is a groove groove and downward slot on the wall surface and the downward slot on the wall; the edge slot and the card slot are inserted into the square parallel and the interval layout of the internal soundproof board and the outer decorative plate that is arranged from the wall.The internal sound absorption board and the outer decorative plate are equipped with a hole through the plate surface, and the internal sound absorption board and the wall surface are filled with a thermal insulation layer; setting fastening parts near the wall is used for internal sound absorption boards and external decorative board cards.Putting fixation, through the intake insulation material to achieve the tight admission between the thermal insulation layer and the internal sound absorption board and the wall surface, solve the problem of the hot and cold bridge, and ensure the thermal insulation effect.Effectively filter the noise, and achieve an integrated solution for decoration, thermal insulation, and sound absorption.

A process for preparing bamboo powder from raw bamboo or bamboo leftover includes such steps as cutting, breaking, drying while sterilizing at 80-280 deg.C, pulverizing by 40 meshes, and grinding by 40-200 meshes. Its advantages are stable water content, uniform granularity, and low cost.

A self-service automatic serving device belongs to the field of catering. It is composed of a plate holding mechanism, a plate conveying mechanism, a tray serving mechanism, a dish setting mechanism and an overall frame. The fully automatic design and human-computer interaction through the display bring convenience and convenience to the choice of diners. The overall structure design not only solves the technical problem of automatic clamping and transportation of dishes, but also solves the problem of separate distribution of vegetable soup and pairing of dishes. The technical difficulty of heat preservation treatment of dishes; the unique design of the plate clamping mechanism through the clamping plate and the embedded block and other components in the plate conveying mechanism can realize the rapid and automatic clamping and transportation of the plate, and improve the overall The rapidity of the device; the movement of each mechanism is monitored by limit switches, which improves the accuracy of the overall device, etc., so that the self-service automatic serving device brings a better dining experience to diners.

The invention relates to a catalyst preparation method, which uses a catalyst preparation device, the catalyst preparation device includes a support plate, a turning mechanism, a clamping mechanism and a spraying mechanism, and a turning mechanism is installed in the middle of the end surface of the support plate, A clamping mechanism is installed on the overturning mechanism, a spraying mechanism is installed on the support plate, and the spraying mechanism is located above the clamping mechanism. The invention can solve the problem that when the catalytic liquid is sprayed onto the catalyst carrier, the catalytic liquid cannot be evenly sprayed onto the catalyst carrier, resulting in the catalyst carrier not being able to absorb the catalytic liquid uniformly, affecting the catalytic effect of the catalyst carrier during use, and affecting the catalytic reaction rate It can also solve the problem that the existing device cannot turn the catalyst carrier intermittently at 180 degrees during spraying, resulting in competitive adsorption, affecting the absorption efficiency of the catalyst carrier to the catalytic liquid, and the catalytic liquid cannot be recycled, which is easy to cause the catalytic liquid Wasted conundrum.

The invention discloses an automatic fault-tolerant and beat fixing feeding system of stacked aluminum sheets and a feeding method of the system. The system comprises a first mechanical arm (2) capable of taking the aluminum sheets away from a material storage area (1), a material separating and detecting area (3), a second mechanical arm (4) and a third mechanical arm (6), the material separating and detecting area (3) can receive the aluminum sheets conveyed by the first mechanical arm (2), detect the number of the aluminum sheets and separate the aluminum sheets, the second mechanical arm (4) can transfer the aluminum sheets of the material separating and detecting area (3) to a standby material storage area (5), and the third mechanical arm (6) can take the aluminum sheets away from the material separating and detecting area (3) or the standby material storage area (5). Compared with the prior art, the problem that due to the fact that the aluminum sheets are adhered in the feeding process of the stacked aluminum sheets, more than one aluminum sheet is fed at one time, and waste materials are generated is solved well, the empty period of each procedure is avoided in the feeding process, personnel operation is not needed in the working process, the automation degree is high, and the structure is simple and reliable.

The invention provides a cross shaft closed forging process. An upper die is included, and a cross shaft upper die groove is formed in the axis portion of the bottom end face of the upper die; the bottom end face of the upper die is provided with four resistance tables in an annular array shape, and the four resistance tables correspond to the positions of the four extending ends of the cross shaft upper die groove correspondingly; and the bottom end face of the upper die is provided with four lock catches in an annular array shape, and the four lock catches and the four resistance tables are distributed in a spaced manner. According to the cross shaft closed forging process, the bottom end face of the upper die is provided with the four lock catches with the height being 26mm in the annular array shape, the top end face of a lower die is provided with four lock catch clamping grooves in the annular array shape, when the upper die and the lower die are in a buckled state, the four lock catches are clamped in the four lock catch clamping grooves, the upper die and the lower die are locked and limited through the lock catches and the lock catch clamping grooves, an upper die and a lower die are firmly locked by the lock catches before a forge piece is formed, then the forge piece starts to be formed, therefore the forge piece die staggering phenomenon is thoroughly solved, and meanwhile the problem of waste products generated due to forge piece die staggering is solved.

The invention provides an automatic filling mechanism for stone cutting waste, which includes a base, a rotating disk mounted on the base, and a first driving mechanism for driving the rotating disk to rotate. There are loading station, filling station, pressing station and unloading station. The rotary table is equipped with a rotating seat corresponding to each station. The upper surface of the rotating seat is provided with workpiece positioning holes. The filling station Including the screw extruder, the discharge port of the screw extruder is connected with a vertical discharge pipe, the discharge pipe is located directly above the corresponding rotary seat, and the base corresponding to the filling station is provided with a drive rotary seat to rotate The second driving mechanism, the pressing station includes a positioning seat, a sliding frame that slides radially along the rotating disk relative to the positioning seat, a third driving mechanism that drives the sliding frame to slide, and a sliding frame that is installed on the sliding frame along the vertical direction The briquetting block on the top is arranged on the carriage to drive the driving cylinder to slide the briquetting block.

The invention discloses a laser cladding workpiece clamping device having a powder recovering function. The laser cladding workpiece clamping device comprises a two-stage horizontal speed reducer; aninput shaft of the two-stage horizontal speed reducer is connected with a motor; an output shaft disc of the two-stage horizontal speed reducer is connected with a supporting frame; an air cylinder and a recovering barrel are fixed in the supporting frame; the telescopic end of the air cylinder is connected with a workbench; the axial direction of the air cylinder is arranged in the vertical direction; the workbench inclines when a piston rod of the air cylinder stretches out, the lowest end of the inclined workbench is located above a barrel opening of the recovering barrel, the edge of the workbench is movably connected with the supporting frame through a connecting piece, and the connecting piece is of a rotary pair structure. According to the laser cladding workpiece clamping device, rotary parts of different structures can be rapidly and effectively repaired, fixed and installed, and the laser cladding working efficiency is improved; most importantly, powder can be prevented fromsplashing out of the working platform in the cladding process, all unmelted powder can be recycled, the problems of powder pollution and waste in the laser cladding process are effectively solved, andpollution and potential safety hazards in a working place are reduced.

The invention belongs to the technical field of feed processing, and relates to a method for preparing laying hen feed through tea oil cold pressing cakes. The method comprises the following steps offirstly crushing the tea oil cold pressing cakes into tea oil seed powder; then performing extraction with methanol for separation to obtain saponin and filter residues, converting the saponin into tea oil concentrated saccharicterpenin, converting the filter residues into tea oil concentrated protein materials, then fermenting the tea oil concentrated saccharicterpenin and the tea oil concentrated protein materials as main raw materials with a mucor fermenting agent, and at the fermentation later stage, adding auxiliary materials of a compound enzyme preparation, a trace element premix agent,corn flour, bacillus licheniformis seed liquid, lactobacillus plantarum seed liquid and the like for cooperation, so that the laying hen feed is prepared. After breeding chickens are fed with the laying hen feed disclosed by the invention, the egg laying property of laying hens can be improved, the egg laying rate can be increased, the weight of each laid egg is increased, the mortality rate is reduced, the laying hens can also be promoted to lay eggs in advance, and the egg laying peak is promoted to reach in advance; and the tea oil cold pressing cakes can be sufficiently developed and utilized, the problem of waste residues during processing of tea oil is solved, and good environment and good economic benefits are produced.

The invention relates to a cutting device for cutting a waterproof coiled material from middle. The cutting device for cutting the waterproof coiled material from the middle comprises an installation rack, a guide rod which extends leftwards and rightwards along a horizontal direction and the two ends of which are fixedly arranged on the installation rack, a transverse rod which is arranged in parallel with the guide rod and is movably arranged on the installation rack, an installation plate which is fixedly arranged in the middle of the transverse rod and is slidably erected on the guide rod, a cutter which is fixedly installed on the installation plate, connecting sleeves which sleeve the two ends of the transverse rod and can rotate around the direction of the axis of the transverse rod, and limiting rollers which respectively rotate around the direction of the axis perpendicular to the extension direction of the transverse rod and are arranged on the connecting sleeves, wherein the two limiting rollers are symmetrically arranged about the cutter, and when the waterproof coiled material is cut from the middle, the two limiting rollers respectively resist against the left and right sides of the waterproof coiled material. When the waterproof coiled material skews, the cutter can move with the waterproof coiled material, the cutter is always guaranteed to be located in the middle of the waterproof coiled material and the cutting accuracy is improved.

The invention discloses a method for preparing a multifunctional flame-retardant hydrophobic non-wood fiberboard, which includes the following steps: (S1) Preparation of the first mixed solution: taking 28% NH3·H2O and adding it to ethanol and stirring evenly to form the first mixed solution , (S2) Preparation of the second mixed solution: Dissolve TEOS, GPTMS, and FAS in ethanol to obtain the second mixed solution. (S3) Preparation of modified superhydrophobic silica sol: drop the second mixed solution into the first mixed solution Polymerization reaction at room temperature to form modified superhydrophobic silica sol, (S4) preparation of flame retardant superhydrophobic sol, (S5) raw material preparation of straw fiberboard: including non-wood fiber, (S6) preparation of straw fiberboard and (S7) flame-retardant superhydrophobic surface coating: disperse the flame-retardant superhydrophobic silica sol to form a uniform colloid, evenly spray on the surface of the fiberboard wool board, dry, and cure to obtain a flame-retardant superhydrophobic non-wood fiberboard. The invention effectively improves the adhesive effect and waterproof and fireproof performance, and saves production steps and costs.