593results about "Raw material division" patented technology

Material cage type steam explosion equipment relates to the technical field of steam explosion and comprises an explosion kettle body, a material cage is detachably installed in the explosion kettle body, and the material cage is installed in the explosion kettle body in a rotating mode through a material cage rotating structure with the axis of the material cage as the rotating center. The steam explosion kettle solves the problems that in the prior art, when a steam explosion kettle body is large, materials are prone to being stacked when the steam explosion kettle body is filled with the materials, the material explosion effect is poor, charging and discharging are troublesome, and the material explosion efficiency is affected.

The invention discloses a mineral-based easily-recyclable compostable water-based barrier coating and a preparation method thereof, and belongs to the technical field of paper-based packaging materials. The coating takes water as a carrier, and is composed of a biodegradable film forming system and a designed graded lamellar mineral system composed of three minerals with different sizes and morphologies. The mineral system comprises flaky kaolin with specific morphology and size, non-asbestos grade flaky talc and fully stripped sodium montmorillonite. A mineral sheet layer forms a compact parallel spreading barrier path in a coating through a specific coating and drying curing process, and excellent water vapor and oxygen barrier, water resistance and oil resistance are realized under the low dry weight of 8-15g / m by combining with a pH value response type reversible cross-linking system. The coating system does not contain polyvinylidene chloride and perfluoroalkyl and polyfluoroalkyl substances. The paper-based material coated with the coating is easy to defibrillate and recover under the standard alkaline warm water condition, the fiber recovery rate is high, and meanwhile, the whole material meets the industrial composting requirement.

A method for joining together two webs includes: overlapping a head portion of the second web on a tail portion of the first web, jointly cutting the head portion of the second web and the tail portion of the first web along a cutting line, so as to form on the first web and on the second web respective front edges offset from each other, and applying a first adhesive splicing tape between a head end of the second web and a tail end of the first web and at the same time aligning frontally with each other the front edges of the first and the second webs.

The application discloses a mineral-based easily-recyclable compostable water-barrier coating and a preparation method thereof, and belongs to the technical field of paper-based packaging materials. The coating is formed by a biodegradable film-forming system and a hierarchical lamellar mineral system containing three different scales and morphologies. The mineral system contains specific morphology and size of lamellar kaolin, non-asbestos grade lamellar talc and fully exfoliated sodium montmorillonite. The mineral lamella forms a dense parallel spread barrier path in the coating through a specific coating and drying solidification process, and combines a pH value responsive reversible cross-linking system to achieve excellent water vapor and oxygen barrier properties, water resistance and oil resistance at a low dry weight of 8-15 g / m2. The coating system does not contain polyvinylidene chloride and perfluoro and polyfluoro alkyl substances. The paper-based material coated with the coating is easily defibered and recycled under standard alkaline warm water conditions, and the fiber recovery rate is high, and meanwhile, the whole material meets the industrial composting requirements.

The utility model discloses a pulping device for corrugated board production, which is characterized in that a placing box is fixedly arranged at the bottom of a pulping cylinder, an auger is rotatably arranged in the middle of the bottom of an inner cavity of the pulping cylinder, and a plurality of first crushing knives for crushing waste paper are uniformly and fixedly arranged on the outer wall of the auger; the utility model relates to the technical field of corrugated board production. According to the pulping device for corrugated board production, through mutual cooperation of L-shaped pipes, an arc-shaped pipe, a first spray nozzle assembly and a second spray nozzle assembly, when waste paper subjected to preliminary crushing falls into a pulping barrel and passes through the four L-shaped pipes, targeted water spraying can be conducted on the passing waste paper, pre-wetting is achieved, the waste paper subjected to pre-wetting continues to fall, and the waste paper is prevented from being damaged. The waste paper falls into the bottom of the inner cavity of the repulping cylinder and then is wetted again by water sprayed by the second nozzle assembly, so that water can be uniformly sprayed to each area of the surface of the waste paper, the waste paper is fully wetted, the softening effect is improved, and the subsequent repulping effect is guaranteed.

A sheet manufacturing apparatus includes a defibrator that defibrates a paper piece to form a defibrated material, an accumulator that accumulates the defibrated material on a mesh belt to form an accumulating material, a forming machine that forms the transported accumulating material to produce a strip-shaped sheet, and a return mechanism that sends a residual accumulating material that is the defibrated material being accumulating to the defibrator on condition that the accumulator has stopped or is stopped during accumulation.

The invention belongs to the technical field of enzymolysis and fermentation of lignocellulose, and particularly relates to a method for promoting enzymolysis and fermentation of straw cellulose by using fresh straw wall protein, which comprises the following steps: firstly, extracting straw cell wall protein and culturing engineering bacteria to obtain expansive-like protein; the method comprises the following steps: mixing the fresh straw cell wall protein and the expansion-like protein with steam explosion straw, carrying out pretreatment under proper pH and concentration, carrying out cellulose enzymolysis and synchronous saccharification fermentation, and finally converting into ethanol. The method effectively improves the straw conversion efficiency, is suitable for bioethanol production, combines the fresh straw cell wall protein and the expansion-like protein from microorganisms, and improves the bioethanol yield. The expansive-like protein and the fresh straw cell wall protein have a remarkable synergistic effect, the expansive-like protein can destroy a cellulose crystal structure in a non-hydrolytic manner and increase accessibility of cellulose, and the fresh straw cell wall protein provides multiple enzyme activities to jointly promote the enzymolysis process.

The invention discloses a preparation method of high-color-fastness woven body paper and the high-color-fastness woven body paper, and relates to the technical field of papermaking, and the preparation method of the high-color-fastness woven body paper comprises the steps of preparing a composite dyeing assistant and preparing the woven body paper. The preparation method comprises the following steps: stirring and mixing cationic microcrystalline cellulose, sodium carboxymethyl cellulose, triethanolamine myriceate, glucan hydroxypropyl trimethyl ammonium chloride, a water-based polycarbodiimide cross-linking agent and deionized water to obtain a composite dyeing assistant, then adding the composite dyeing assistant into slurry, adding a water-based dye, and carrying out a papermaking process to obtain the composite dyeing assistant. According to the method, the color fastness of the woven body paper can be improved. The sun-proof grade of the high-color-fastness woven body paper is greater than or equal to 4 grades.

The utility model discloses a pulping device for production raw materials of packaging color boxes, which relates to the technical field of pulping of raw materials of color boxes and comprises a tank body, a support is fixedly connected to the lower portion of the outer surface of the tank body, and a supporting plate is fixedly connected to the inner surface of the support. A stirring device is jointly arranged on the top surface of the supporting plate and in the tank body and comprises a fixing box, a rotating shaft movably penetrates through the outer surface of the fixing box, a fixing plate is fixedly connected to the upper portion of the inner wall of the tank body, and the top end of the rotating shaft is rotationally connected with the middle of the bottom surface of the fixing plate; the lower portion of the outer surface of the rotating shaft is fixedly sleeved with a first bevel gear, the outer surface of the first bevel gear is connected with a second bevel gear in a meshed mode, and the outer surface of the rotating shaft is fixedly sleeved with blades. Raw materials can be stirred and beaten into paper pulp, and the beaten paper pulp can be poured out.

The invention discloses a carbon fiber paper-based material and a continuous calendering enhancement method thereof. The preparation method specifically comprises the following steps: repulping, grinding, defibering and sieving meta-aramid pulp, and then mixing with defibered and dispersed short carbon fibers to prepare paper pulp; sequentially carrying out forming, dewatering, squeezing and drying treatment on the slurry to obtain a carbon fiber base paper coiled material; and carrying out continuous calendaring enhancement treatment on the carbon fiber raw paper coiled material to obtain the carbon fiber paper. According to the method, the purpose that the temperature is higher than the glass transition temperature (larger than or equal to 273 DEG C) of the meta-aramid pulp can be achieved, the purpose of conducting hot pressing on the carbon fiber base paper can be achieved, the large-batch and continuous production requirements of the carbon fiber paper can be met, and the production efficiency is greatly improved.

The present application provides a kind of bamboo piece steam explosion equipment and method, including equipment body and pressure maintaining mechanism, the pressure maintaining mechanism includes the steam pipeline being arranged in equipment body and the valve group being fixed on steam pipeline;It also includes the positioning mechanism being movably arranged in equipment body for carrying the positioning mechanism of bamboo piece;And the transmission part being movably arranged in equipment body is connected with positioning mechanism;Bamboo piece is placed to positioning mechanism fixed, steam is supplemented to equipment body by steam pipeline and pressure is maintained, then control valve group makes equipment body steam explosion, while in the process of pressure maintaining and steam explosion, transmission part pulls positioning mechanism to move in equipment body;The present application makes bamboo piece in the steam explosion process of equipment body in the function of active state, to improve the utilization rate of steam explosion bamboo piece and steam explosion efficiency, and solve the problem of destroying bamboo piece shape in the process of steam explosion.

A defibering and deflaking pulper has a defibering rotor-stator pair and a deflaking rotor-stator pair for processing a fiber-based material into smaller pieces. The defibering and deflaking pulper creates an impeller-produced vortical circulation that pulls the material through a defibering rotor-stator interface, where the material is broken down into smaller pieces, and then through a deflaking rotor-stator interface, where the smaller pieces are broken down into even smaller pieces. The defibering and deflaking pulper accumulates the defibered and deflaked material that passes through the defibering rotor-stator interface and the deflaking rotor-stator interface for further processing. This combination of defibering and deflaking in the defibering and deflaking pulper reduces plugging from larger pieces of the material and reduces downstream processing of the material, thus increasing productivity and reducing costs.

The invention discloses a manufacturing method of an environment-friendly paper product. The environment-friendly paper product is prepared from the following raw materials in parts by mass: 60-70 parts of a main fiber raw material, 25-35 parts of an auxiliary fiber raw material, 3-8 parts of an environment-friendly additive and 1-2 parts of a pretreating agent. By means of the components, by adding the auxiliary fiber raw materials, the environmental protection property is remarkably improved, waste cotton and linen and agricultural waste are converted into papermaking raw materials, consumption of primary fibers is reduced, meanwhile, waste recycling is achieved, and pollution caused by incineration and landfill is reduced. The auxiliary fibers and the main fibers have a synergistic effect and are matched with the environment-friendly auxiliaries to reinforce the quality of the paper, the cotton and linen fibers improve the flexibility, the agricultural waste fibers enhance the stiffness, lignin and short fibers are separated through low-temperature pyrolysis, impurities are prevented from affecting the performance of the paper, and solid powder rich in the lignin and the short fibers is recycled and reused.

The present invention provides a pulp sheet for producing fluff pulp that has excellent deodorizing properties, good crushability, and easily recovers its bulk after compression. [Solution] A pulp sheet for producing fluff pulp is prepared by blending (A) softener kraft pulp, (B) metal ion-containing cellulose fibers having ionic substituents and containing ions of one or more metal elements selected from Ag, Au, Pt, Pd, Ni, Mn, Fe, Ti, Al, Zn, or Cu, and (C) softener, such that (C) is 0.1 to 50 parts by mass per 100 parts by mass of the total of (A) and (B).

This invention relates to the field of packaging carton raw material recycling and processing technology, and discloses a packaging carton raw material recycling and processing equipment, including a screening frame, a screening cylinder fixed above the screening frame, a hollow screening roller rotatably connected to the screening cylinder, a plurality of screening grooves and flow grooves respectively opened on the hollow screening roller, and a plurality of first screening holes opened on the hollow screening roller, and a rotatable electromagnet adsorption roller provided in the screening groove, a movable scraper frame provided in the screening groove, and a plurality of strip scrapers slidably connected to the hollow screening roller; the electromagnet adsorption roller rotates automatically in the screening groove to reduce the dead angle of metal impurity adsorption, while the scraper frame drives the turning rod to move back and forth synchronously to turn over the carton fragments, and can also scrape off impurities around the first screening holes, improving the efficiency of automatic separation of small non-metallic impurity particles from carton fragments.

The invention relates to a process for producing non-woven fabric-like composite materials, novel non-woven fabric-like composite materials, articles made therefrom and their use. In particular the fabric-like composite materials are derived from shredded polymer-glued or polymer-coated paper products and coffee grounds as raw material.

Provided is an inorganic fiber mat produced by a method of producing an inorganic fiber mat, the method comprising: a preparing step of preparing a first inorganic fiber molding including an organic binder attached thereto and derived from a needle-punched mat; a defibrating step of defibrating the first inorganic fiber molding to obtain defibrated inorganic fibers; and a papermaking step of forming the inorganic fiber mat by papermaking using a slurry containing the defibrated inorganic fibers.

The application relates to the technical field of crushing mechanisms, and discloses a crushing mechanism for a pulper, which is installed in the interior of a pulper and rotates under the drive of the pulper. The crushing mechanism comprises a paper crushing cutter and a transmission shaft. One end of the paper crushing cutter is fixedly connected to the transmission shaft. The transmission shaft is hollow in the interior and is provided with a suction assembly. The side surface and the bottom of the transmission shaft are both provided with openings. The suction assembly drives the paper pulp in the pulper to enter the transmission shaft from the side surface openings and to be discharged from the bottom openings. In the use process of the suction assembly, the paper pulp in the pulper is sucked into the transmission shaft through suction force. The paper pulp enters the transmission shaft from the side surface openings and is discharged from the bottom openings. The paper pulp passes through the paper crushing cutter in the flowing process. That is, the paper pulp is sucked from the side surface openings and is dragged to the paper crushing cutter at the same time. The contact efficiency of the paper pulp in different parts with the paper crushing cutter is improved. The problem that part of the paper pulp does not contact the crushing mechanism in the flowing process is avoided. The crushing efficiency of paper sheets in the paper pulp is improved.

A blow valve 15 and a biomass processing system 1 comprising such a blow valve Said blow valve 15 being connectable in a blow line 7 which is connecting two differently pressurized vessels 3, 5 of the biomass processing system 1. Said blow valve 15 is configured for controlling the flow of biomass material and fluid in the blow line 7, wherein said blow valve 15 comprises a shutter valve 31 with a central opening 33 of controllable size, said shutter valve 31 comprising a number of valve plates 35 which are disposed in an annular pattern surrounding the central opening 33 of the shutter valve 31 and wherein said valve plates 35 are movable in relation to each other whereby the size of the central opening 33 is controlled by moving the valve plates 35.

The utility model discloses repulping conveying equipment for white board processing, which comprises a bottom plate, the outer surface of the bottom plate is fixedly connected with a power component, the outer surface of the bottom plate is fixedly connected with a support frame, the outer surface of the support frame is fixedly connected with a composite crushing cavity, and a power shaft is arranged in the composite crushing cavity. By means of the front variable-diameter spiral and the rear variable-diameter spiral arranged on the conveying shaft, thick conveying of the front section and pressurizing propelling of the rear section are utilized, slurry flows more evenly, blocking is avoided, and the problems that conveying equipment of a single spiral propelling structure is poor in slurry fluidity, the slurry is prone to being clamped, and follow-up machining is affected can be effectively solved. Meanwhile, the concentration sensor is used for detecting the concentration of the materials conveyed by the conveying assembly in real time, the high-pressure micro-flow nozzle is matched for spraying water to the materials, the concentration of the slurry is adjusted in real time, the stability of the concentration of the slurry can be effectively ensured, and the production efficiency of the equipment is improved.

The utility model provides a pulper feeding buffer device in papermaking equipment, the pulper comprises a pulping tank used for pulping pulp, the buffer device comprises a baffle plate, the baffle plate is configured on a path where the pulp falls to the bottom of the pulping tank, the baffle plate is obliquely arranged relative to the bottom surface of the pulping tank, and the baffle plate is a rectangular baffle plate; the fixing frame is configured to be fixedly connected with the side wall of the pulping tank; one end of each lifting device is fixedly connected with the baffle, the other end of each lifting device is fixedly connected with the fixing frame, and the four lifting devices are arranged at the four corners of the baffle respectively; the four lifting devices are configured to be controlled to adjust the heights of the four corners of the baffle correspondingly, and the inclination direction and the inclination degree of the baffle are controlled. The buffering device can reduce damage to the pulper in the pulp feeding process.

The invention provides a form-controllable bamboo fiber and a preparation method and application thereof, and relates to the technical field of fiber preparation. According to the method, bamboo wood is sequentially subjected to combined fiber treatment and steam explosion treatment, the bamboo fibers with the controllable shapes are obtained, the combined fiber treatment comprises physical rolling and splitting treatment and chemical / biological treatment, and the chemical / biological treatment comprises at least one of alkali liquor soaking, enzyme treatment and bacterium treatment; the physical rolling splitting treatment and the chemical / biological treatment have no time sequence; the explosion temperature of the steam explosion treatment is 110-200 DEG C, the explosion pressure is 1-3 MPa, the explosion time is 2-8 min, and the pressure relief speed is 0.1-10 MPa / s. The bamboo fiber with low agglomeration index, high tensile strength, high fineness, high length, high filament rate, good dispersion uniformity and high fiber yield is prepared by adopting the synergistic effect of physical rolling splitting treatment, chemical / biological treatment and steam explosion treatment processes.

The utility model relates to the technical field of decorative paper production, in particular to a waste treatment device for processing antibacterial wear-resistant decorative paper, which comprises a treatment barrel, a drainage pipe is fixedly connected to the lower part of the right end of the treatment barrel, a heating wire is fixedly connected to the surface of the lower end of the treatment barrel, and a cylindrical barrel is fixedly connected to the middle of the lower inner wall of the treatment barrel. A plurality of groups of rolling shafts are movably connected to the inner wall of the cylindrical barrel at equal intervals through rotating shafts, a base is fixedly connected to the lower end of the treatment barrel, a supporting frame is fixedly connected to the upper end of the treatment barrel, a stirring mechanism is fixedly connected to the middle of the upper end of the supporting frame, the stirring mechanism comprises a motor, and a connecting rod is fixedly connected to the output end of the motor. According to the waste treatment device for processing the antibacterial wear-resistant decorative paper, the stirring mechanism is arranged, so that the infiltration layering of the decorative paper in a solution can be accelerated, the efficiency can be improved, a waterproof film can be collected during stirring, and relatively pure paper pulp can be obtained.

The application belongs to the field of increasing the water retention value of chemical pulp waste paper fibers, and discloses a method for efficiently increasing the water retention value of chemical pulp waste paper fibers, which comprises the following preparation steps: firstly, mixing chemical pulp waste paper fibers with pentaerythritol; then, adding a certain amount of acetylcholine and acetic acid in sequence; after being mixed uniformly, heating treatment is performed, the pretreatment temperature and time are controlled, and after the treatment is completed, an ethanol solution is added to terminate the reaction, so that modified waste paper pulp fibers are obtained. The application has the advantages of short time, simple process, mild conditions, simple steps, easy operation and suitability for industrial production.

The utility model belongs to the technical field of papermaking industry, and particularly relates to a pulper for packaging paper production, which comprises a bottom plate. A driving motor is fixedly connected to the inner side wall of the bottom plate; a rotating paddle is arranged at the output end of the driving motor; a plurality of groups of supporting blocks are fixedly connected to the side wall of the bottom plate; the supporting blocks are arranged in a circumferential array; the end part of the supporting block is fixedly connected with a stirring barrel; the end part of the stirring barrel is rotationally connected with a rotating paddle in a penetrating manner; a plurality of groups of gas conveying pipes are fixedly connected to the inner side wall of the stirring barrel; the end part of the gas conveying pipe is fixedly connected with a gas outlet machine; guide rail frames are fixedly connected to two sides of the upper end part of the stirring barrel; the inner side wall of the guide rail frame is slidably connected with a sliding rail rod. The flotation device is additionally arranged, gas is conveyed into the slurry, ink and pigment particles in the slurry are adsorbed through the gas, a foam layer is formed, foam is removed through the foam scraping plate, separation of ink and pigment is achieved, the whiteness and color of paper are improved, and the quality and printing performance of the paper are improved.

The application discloses a method for improving the quality of dissolving pulp based on microwave-assisted low eutectic solvent, and belongs to the technical field of papermaking industry. The method solves the technical problem of slow solvent mass transfer and reaction and low efficiency in the traditional heating method. The method for improving the quality of dissolving pulp based on microwave-assisted low eutectic solvent can realize the rapid viscosity reduction and reaction performance improvement of the dissolving pulp within 30-300 seconds, and overcomes the problems of slow mass transfer and reaction and low efficiency of the low eutectic solvent in the traditional heating method. The method has the characteristics of simple operation, instant high efficiency, green low carbon, low cost and recyclability.

Method and control system are provided for controlling values of process parameters of a pretreatment process of wood particles. A sampler is used to obtain a sample of a product flow of said pretreatment process after said wood particles have undergone steam explosion in a hemihydrolysis reactor. A particle measurement device is used to measure one or more characteristics of particles in said sample and to produce one or more pieces of measurement information indicative of the measured characteristics. Said one or more pieces of measurement information are used to select one or more values of one or more of said process parameters.

The invention discloses wood pulp defibrating equipment and a defibrating method thereof.The defibrating equipment comprises a shell, a rotor rotatably installed in the shell and a stator structure fixedly installed on the inner wall of the shell, the shell is provided with a feeding port and a cotton outlet, a plurality of movable tooth pieces are installed in the circumferential direction of the rotor, and the movable tooth pieces are arranged on the inner wall of the shell. The multiple movable tooth pieces are arranged on the circumferential surface of the rotor in a staggered mode to form a double-helix mode. And the stator structure comprises a pre-crushing part, a defibrating part and a homogenizing part which are sequentially distributed outside the circular arc of the rotor, and the pre-crushing part, the defibrating part, the homogenizing part and the movable tooth pieces correspondingly form a pre-crushing area, a defibrating area and a homogenizing area. According to the wood pulp defibrated by the method, fibers with the fiber length of 2.5 mm or above account for 95% or above, fibers with the fiber width of 35 microns or above account for 95% or above, the dust rate is within 4%, the high defibrating capacity of 500-1500 kg / h is achieved, and efficient defibrating, gentle carding and fiber protection are achieved.

An anti-blocking device for a paper medium pulping machine comprises a rack and a charging barrel assembly installed on the rack, and a filtering assembly communicated with the top of the charging barrel assembly is arranged on the rack. A partition plate for separating the filtering assembly from the charging barrel assembly is mounted on the rack, and a supporting frame for supporting the charging barrel assembly and an air injection assembly located at the top of the charging barrel assembly are mounted on the partition plate; the charging barrel assembly comprises a charging barrel main body and a feeding pipeline communicated with the top of the charging barrel main body, the feeding pipeline is arranged in the spiral line direction of the charging barrel main body, and an air hole corresponding to the air injection assembly is formed in the middle of the feeding pipeline; compared with the prior art, by arranging the feeding pipeline in the spiral line direction of the charging barrel main body, slurry is uniformly conveyed into the charging barrel main body through the feeding pipeline, the slurry is prevented from being blocked at the feeding port of the charging barrel main body, and under the action of the air injection assembly, the slurry can be uniformly conveyed into the charging barrel main body. Downward conveying of the slurry and dredging of the slurry at the discharge hole of the charging barrel main body are realized, and stable discharge of the slurry is ensured.