1253results about "Raw material division" patented technology

The invention relates to a method for producing a dried fibrous web (36), in particular a paper, cardboard or tissue web, from baled pulp comprising a plurality of stacked pulp sheets, comprising the following steps: feeding the baled pulp into a shredder (16) to produce chips (20) from the fed baled pulp; feeding the chips (20) to a fiberizing device (32) to fiber the chips (20) in a dry process; and feeding the fibers into an air laying unit (34) to form a dried fibrous web (36) from the fibers; wherein the shredder (16) is designed and operated such that at least 50% of the chips (20) produced therein have essentially the shape of an irregular polygon, with a weight-to-circumference ratio between 5.0 g / m² and 10 g / m².Furthermore, the invention relates to a device for carrying out the method according to the invention.

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 relates to a waste collecting and smashing device for paper products, and belongs to the technical field of paper product recycling, the waste collecting and smashing device comprises a box body, a feeding pipeline is fixed to the top of the box body, a smashing box is fixedly communicated with the bottom of the feeding pipeline and located in the box body, and a receding mechanism is arranged on the outer surface of the smashing box; a plurality of stabilizing rods are fixed to the outer surface of the crushing box, a pushing assembly is arranged on the inner top wall of the box body, a wet crushing mechanism is arranged on the inner bottom wall of the box body, and a dry crushing assembly is arranged on the inner side wall of the crushing box; the right wall in the smashing box is provided with a flow dividing assembly which sequentially penetrates through the right side wall of the smashing box and the right side wall of the box body and can effectively divide smashed paper pulp. According to the waste collecting and smashing device for the paper products, paper product waste is coarsely smashed through the dry smashing assembly, iron products such as staples attached to waste paper are sucked through magnets, paper pulp is divided through the flow dividing assembly, and the utilization effect of the paper pulp can be improved.

A sheet manufacturing apparatus includes a buffer tank 13 that stores a material containing fibers; a defibrator 30 that defibrates the material supplied from the buffer tank 13 and discharges the fibers; a mixing unit 91 that mixes the fibers and a binding material binding the fibers to each other and discharges a mixture; a first transport belt 61a that transports the mixture; an accumulation unit 50 that accumulates the mixture on the first transport belt 61a to form a web W; a second transport belt 62a that comes into contact with one surface of the web W to transport the web W; processing rollers 71 and 72 that pressurize the web W; a cleaning unit 201 that removes and recovers residual fibers adhering to the first transport belt 61a; and a fiber transport pipe 22 that transports the residual fibers recovered by the cleaning unit 201 to the defibrator 30.

A sheet manufacturing apparatus includes a buffer tank 13 that stores a material containing fibers; a defibrator 30 that defibrates the material supplied from the buffer tank 13 and discharges the fibers; a mixing unit 91 that mixes the fibers and a binding material binding the fibers to each other and discharges a mixture; a first transport belt 61a that transports the mixture; an accumulation unit 50 that accumulates the mixture on the first transport belt 61a to form a web W; a second transport belt 62a that comes into contact with one surface of the web W to transport the web W; processing rollers 71 and 72 that pressurize the web W; a cleaning unit 201 that removes and recovers residual fibers adhering to the first transport belt 61a; and a fiber transport pipe 22 that transports the residual fibers recovered by the cleaning unit 201 to the defibrator 30.

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.

The present invention provides a water-closed cycle waste paper pulping system and a process thereof, which relates to the technical field of pulping devices, and includes: a base, which is a rectangular plate-shaped structure, and is placed on the ground, and a box body with a rectangular box-shaped structure is fixed on the base. The present application, through the arrangement of the second barrel body and the third barrel body, firstly, can precipitate the pulp, and through precipitation, the excess water can be extracted, thereby ensuring the water content of the pulp; secondly, after the excess water is extracted, the water can be decomposed by a decomposition agent, and after decomposition, it can be put into the box body again for continued use, thereby realizing the circulation of water and saving water; the present application, through the arrangement of auxiliary components, firstly, the array-shaped air holes on the annular seat can improve the mixing effect of the pulp in the first barrel body, thereby improving the bleaching effect; secondly, under the telescopic action of the electric cylinder, the height change of the annular seat can be realized, thereby further improving the bleaching effect.

The invention discloses an efficient preparation method of nanocellulose, and belongs to the field of biological material preparation. The preparation method comprises the following steps: (1) pretreating straws to obtain small straw blocks; (2) putting the small straw blocks into a deep eutectic solvent composed of polybasic acid and polyhydric alcohol, uniformly stirring and mixing, and heating to obtain a mixed solution; (3) adding an initiation treatment reagent into the mixed solution to perform purification treatment, and then performing solid-liquid separation and decoloration to obtain nano cellulose; and (4) recovering the deep eutectic solvent, and initiating the treatment reagent to be reused. Compared with the prior art, the method has the advantages that the high conversion efficiency of 72.3%-98.1% is achieved, the solvent recovery rate is high, the cost effectiveness of the method is proved through further economic analysis, and the method is suitable for sustainable large-scale nano cellulose production. In general, the green, efficient, economical and feasible deep eutectic solvent route provides a promising solution for high-value utilization of biomass resources.

The invention relates to the technical field of aramid fiber recycling, high-performance fiber modification and functional fiber reinforced materials, in particular to recycled aramid pulp with mechanical force induced brooming and a preparation method of the recycled aramid pulp. The preparation method comprises the steps of physical screening, chemical stripping pretreatment, thread rolling, pulping, pulping mechanical force coupling, stepped heating drying and opener secondary delinting, and the prepared high-quality aramid pulp is applied to the fields of automobile friction materials, high-performance sealing products and special rubber composite materials. The problems that traditional recycled fibers are poor in dispersity, insufficient in specific surface area and weak in matrix interface bonding can be effectively solved.

The utility model belongs to the technical field of papermaking equipment, and particularly relates to a pulper which comprises a rack, a barrel body, a pulping assembly, a driving motor and a control system. The barrel body is fixedly arranged on the rack, the top of the barrel body is open, the barrel body is used for containing slurry, and a slurry outlet is formed in the bottom of the barrel body; the pulping assembly is used for crushing the pulp in the barrel body; the driving motor is fixedly arranged on the rack, and the driving motor is used for providing circumferential rotation power for the pulping assembly; the control system comprises a controller, a liquid level sensor, a water inlet valve flow sensor, a slurry discharge valve flow sensor and a frequency converter, the controller is in telecommunication connection with the liquid level sensor, the water inlet valve flow sensor, the slurry discharge valve flow sensor and the frequency converter, and the frequency converter is used for controlling the output rotating speed of the driving motor. The control system can adjust the rotating speed of the driving motor according to different working conditions, the total energy consumption is reduced, and the production cost is reduced.

The invention relates to a method for producing a dry-laid fibrous web, in particular a paper, cardboard, or tissue web, from cellulose bales (10), comprising a plurality of cellulose sheets stacked one over the other. The method has the following steps: supplying the cellulose bales (10) to a shredder (16), which has at least one rotor (18) with a plurality of protrusions, in order to produce chips from the supplied cellulose bales; supplying the chips (20) to a defibration device (32) in order to defiber the chips in a dry process; and supplying the fibers to an air-laying unit (34) in order to form a dry-laid fibrous web from the fibers, wherein the at least one rotor (18) of the shredder (16) is operated at a rotational speed which is so high that the speed of the radially outer tips of the protrusions is more than 2 m / s, preferably more than 5 m / s, more preferably more than 10 m / s, wherein the speed at which the cellulose bales are supplied to the shredder is regulated via the torque of the at least one rotor of the shredder. The invention additionally relates to a device which is designed to carry out the production method according to the invention.

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 invention relates to the technical field of waste treatment, and provides environment-friendly waste treatment equipment which comprises an equipment box body and a crushing and stirring stick, a plurality of inclined partition plates are installed in the equipment box body and divide the interior of the equipment box body into a plurality of treatment cavities, and a telescopic gate and a filter screen plate are installed at the lower end of each inclined partition plate; when the telescopic gates are opened, every two adjacent layers of treatment cavities communicate with each other, a driven gear is installed below the high end of each inclined partition plate, the driven gears are used for driving the corresponding telescopic gates to be closed or opened, and a driving gear and a vertical rotation switching mechanism are installed in the equipment box body; and the vertical rotation switching mechanism is used for carrying out linear driving or rotary driving on the driving gear in the vertical direction, so that the driving gear is in engaged connection with different driven gears. Opening and closing work of different telescopic gates can be completed by rotating or linearly driving the driving gear, the overall efficiency is high, and the conveying cost is low.

To provide a sheet manufacturing apparatus capable of suppressing waste of raw materials.SOLUTION: A sheet manufacturing apparatus includes: a buffer tank 13 that stores materials containing fibers; a defibrator 30 that defibrates the materials supplied from the buffer tank 13 and discharges the fibers; a mixing section 91 that mixes the fibers with a binder that binds the fibers to each other and discharges the mixture; a first conveyor belt 61a that conveys the mixture; a deposition section 50 that deposits the mixture on the first conveyor belt 61a to form a web W; a second conveyor belt 62a that comes in contact with one side of the web W to convey the web W; treatment rollers 71, 72 that apply pressure to the web W; a cleaning section 201 that removes and collects remaining fibers adhering to the first conveyor belt 61a; and a fiber conveyor pipe 22 that conveys the remaining fibers collected by the cleaning section 201 to the defibrator 30.SELECTED DRAWING: Figure 1

The invention discloses a degradable waterproof and oilproof paper pulp molded product and a preparation method thereof. The preparation method comprises the following steps: S1, pretreatment of polyhydroxybutyrate; s2, preparing modified starch; s3, coating the polyhydroxybutyrate with the modified starch; s4, preparation of modified montmorillonite; and S5, preparing the paper pulp molded product. According to the paper pulp molded product, the degradable oleophobic and hydrophobic high polymer material polyhydroxybutyrate is introduced, the degradability of the paper pulp molded product is guaranteed, the waterproof and oil-proof performance of the paper pulp molded product is improved, the polyhydroxybutyrate is coated with the modified starch, the compatibility of the polyhydroxybutyrate and paper pulp fibers is improved, and the paper pulp molded product has the advantages of being environmentally friendly and free of pollution. The overall quality of a paper pulp molded product is ensured; meanwhile, the added modified montmorillonite and the modified starch coated polyhydroxybutyrate can synergistically improve the barrier property of a paper pulp molded product, and the waterproof and oil-proof properties of the paper pulp molded product are jointly improved.

A sheet manufacturing apparatus includes a sheet forming unit that forms a strip-shaped sheet by accumulating a material containing fibers and then compressing the material and a transport unit including a plurality of transport rollers arranged in a transport direction of the sheet to transport the strip-shaped sheet, a cut sheet, and a sheet. The transport unit includes an upstream transport unit including a first transport roller group including some of the plurality of transport rollers, a downstream transport unit including a second transport roller group including, among the plurality of transport rollers, a plurality of transport rollers installed downstream of the first transport roller group in the transport direction, and a sheet sensor that detects an abnormality in transport of the sheet in the transport unit. The upstream transport unit includes an opening mechanism that performs an opening operation when the sheet sensor detects the abnormality.

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.

A method for lignocellulose hydrolysis is provided. The method includes: crushing an agroforestry biomass feedstock, extracting with a toluene-ethanol solution, and drying to obtain a de-extracted feedstock; weighing a metal salt and glycerol for mixing to obtain a type IV deep eutectic solvent; weighing the de-extracted feedstock and adding into the type IV deep eutectic solvent, and reacting for 2 h-4 h at a temperature of 80° C.-120° C. and a stirring speed of 300 rpm-500 rpm to obtain a pretreatment mixture; performing a solid-liquid separation to the pretreatment mixture to obtain a filter residue and a filtrate, and then drying the filter residue after washing to obtain a lignocellulose residue after pretreatment; and performing enzymatic hydrolysis reaction to the lignocellulose residue to obtain fermentable sugar.

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.

The invention provides a paper pulp molding waste recycling device, and relates to the technical field of molding waste recycling. Two crushing rollers are rotationally arranged on the crushing box, the two crushing rollers are meshed with each other, a first gear is welded to a rotating shaft of each crushing roller, and the two first gears are meshed with each other; a base is welded to the left end of the smashing box and is of an L-shaped structure, a first motor is fixed to the base, and an output shaft of the first motor is fixed to a rotating shaft of the smashing roller on the front side. When a gear rotates, the gear pokes a stress rod to enable two shearing plates to move back and forth in a reciprocating mode, molding waste is pre-sheared, follow-up smashing work is facilitated, the waste can be preliminarily treated into the shape easier to smash, the overall smashing efficiency is further improved, and the problems that the smashing structure is single, and the smashing efficiency is high are solved. The problems that the crushing effect on the large wood-plastic waste is not thorough enough, waste fragments cannot be screened after crushing, and the crushed large waste cannot be crushed again are solved.

The present invention relates to the technical field of the paper-making industry, and specifically, to a waste paper recycling and treatment device for paper-making. It includes a treatment device body, the treatment device body includes a treatment box, a gathering component is arranged inside the treatment box, the gathering component includes a horizontal plate and a vertical plate, a groove is formed on the outer wall of the vertical plate, and an insertion hole component is slidably connected inside the groove. An adjustment component is installed on the outer wall of the gathering component, and the adjustment component is used to adjust the position of the insertion hole component. A track groove is formed on the inner bottom wall of the treatment box, and an auxiliary component is arranged inside the track groove. When the vertical plate is erected and vertically locked with the horizontal plate, the present invention plays a role of a baffle in the vertical direction. The vertical plate and the horizontal plate form an "L"-shaped plate structure, which prevents the lateral movement of waste paper during the insertion process, and at the same time can effectively surround the waste paper to prevent it from splashing out of the treatment box during the insertion process. This helps to keep the working environment clean and reduce potential safety risks, increasing the applicability and flexibility of the machine.

To provide a roughly crushed piece supply device capable of satisfactorily and quickly agitating, discharging and humidifying roughly crushed pieces, and also to provide a fiber structure manufacturing device.SOLUTION: A roughly crushed piece supply device comprises: a storage tank that stores roughly crushed pieces including fibers and has a first space and a second space positioned below the first space; an introduction port that communicates with the first space and introduces the roughly crushed pieces into the first space; a partition part that divides the storage tank into the first space and the second space and has a communication port to make the first space and the second space communicate with each other; an adjustment part to adjust amount of the roughly crushed pieces transferred from the first space to the second space through the communication port; an agitation part to agitate the roughly crushed pieces in the second space; and a discharge port to discharge the roughly crushed pieces agitated by the agitation part from the second space.SELECTED DRAWING: Figure 2

The invention relates to the technical field of general crushing, in particular to a recycled raw material crushing device for corrugated carton manufacturing, which comprises a table, a supporting platform fixedly mounted on the table, a crushing part arranged on the right side of the table, and a pretreatment mechanism mounted on the supporting platform and the table, the pretreatment mechanism is arranged on the table, and the heat auxiliary mechanism is arranged on the pretreatment mechanism and the table, so that the outer surface of a corrugated board to be crushed can be powerfully pushed and scraped through the pretreatment mechanism, impurities, especially adhesive tapes, adhered to the corrugated board are removed, and the cleanliness of the corrugated board is ensured; and therefore, the breaking difficulty rising caused by the existence of the adhesive tape is prevented, it is guaranteed that the recycled corrugated boards can be rapidly broken with high quality, and the purity of the regenerated paper pulp generated subsequently is guaranteed.

The utility model relates to the technical field of pulpers, in particular to a rotary drum type pulper, a lifting device comprises two sliding rods, the two sliding rods are fixedly installed on the surface of a bottom plate, the surfaces of the two sliding rods are both connected with sliding plates in a sliding mode, a standing plate is fixedly installed between the two sliding plates, a long groove is formed in the surface of the bottom plate, and the standing plate is connected with the long groove in a sliding mode. Two long grooves are formed in the bottom plate, two movable plates are slidably connected into the long grooves, hinge plates are hinged to the surfaces of the ends, away from the long grooves, of the movable plates, L-shaped plates are fixedly installed on the surfaces of the two sides of the bottom plate, air cylinders are fixedly installed on the surfaces of the vertical ends of the L-shaped plates, and the output ends of the air cylinders are fixedly connected with the movable plates. According to the rotary drum type pulper, the problems that due to the fact that an existing rotary drum type pulper is large in size, a feeding hopper of the rotary drum type pulper is generally arranged at a high position, the rotary drum type pulper needs to be manually carried and climb to the high position in the feeding process, and certain potential safety hazards and danger exist in the feeding process are solved.

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.

A sheet manufacturing system includes a coarsely crushing apparatus that coarsely crushes a paper; a sheet manufacturing apparatus that generates a sheet-shaped recycled paper using coarsely crushed pieces of the paper as a raw material; and a server that is connected to the coarsely crushing apparatus and the sheet manufacturing apparatus via a network, in which the sheet manufacturing apparatus has a reserving section that reserves the coarsely crushed pieces, a remaining amount detector that detects a remaining amount of the coarsely crushed pieces in the reserving section, a calculation section that calculates an allowable filling amount of the coarsely crushed pieces in the reserving section based on a detection result of the remaining amount detector, and an output section that transmits information related to the calculated allowable filling amount to the server, and the coarsely crushing apparatus has an integration section that integrates the coarsely crushed pieces, an input section that acquires the information related to the allowable filling amount from the server, a display information generation section that generates display information related to the allowable filling amount based on the information acquired by the input section, and a display section that displays the display information.

The invention relates to the cross technical field of preparation of special papermaking, carbon fiber-based materials and sensing materials, in particular to a nano friction paper-based positive electrode material with an interpenetrating network structure and a preparation method of the nano friction paper-based positive electrode material. The paper-based positive electrode material is prepared by taking aramid fibrid as a basic framework, taking aramid pulp as a forming auxiliary material and carrying out treatment surface enhancement and triboelectrification enhancement by adopting a carboxymethyl cellulose dispersion liquid. The process effectively solves the problem that the nano friction signal is weak and is easy to distort due to interference of external electromagnetism, vibration and the like, and improves the measurement accuracy.

The utility model relates to the technical field of pulping machines, in particular to an energy-saving pulper for raw material waste paper treatment, which comprises a pulping cylinder, a mounting rack and a rotating shaft, a discharge pipe and support legs are arranged at the bottom end of the pulping cylinder, the mounting rack is mounted at the top end of the pulping cylinder, and the rotating shaft is rotatably connected with the center of the top end of the mounting rack; the waste paper beating device further comprises a beating assembly, the beating assembly is used for conducting beating treatment on waste paper in the beating cylinder, the beating assembly comprises a rotating plate, two sets of beating shafts, two sets of chain wheels and a chain, the rotating plate is installed at the bottom end of the rotating shaft, and the two sets of beating shafts are rotationally connected with the rotating plate. The utility model provides the double-shaft pulping machine which can realize more sufficient and thorough pulping by adopting double-shaft pulping, and can crush larger waste paper before pulping, so that the pulping is more sufficient and thorough, and the pulping efficiency is improved.

The invention discloses a papermaking method taking waste grape branches as raw materials. The papermaking method comprises the following steps: (1) cutting back branches: cutting back all sections of annual grape branches; (2) peeling: soaking the cut-back branches in alkali liquor for 48 hours, then taking out the branches, cleaning the branches with clear water, and peeling off barks to obtain peeled branches; (3) cooking: cooking the peeled branches in a reaction kettle containing sodium sulfide and sodium hydroxide liquid, and taking out a softened material after cooking is completed. And (4) pulping and papermaking: washing the boiled softened material to be neutral, and then pulping and papermaking to prepare paper. According to the method, the cooking temperature is controlled through a sulfate cooking method, resource reutilization of waste in the vineyard is achieved, and the method has important significance in promoting healthy and sustainable development of the grape and wine industry.