1692results about "Raw material division" patented technology

The invention provides a sheet manufacturing apparatus capable of improving humidification efficiency. A sheet manufacturing apparatus (100) is provided with: a defibrating unit for defibrating a material to form fibers; a fiber accumulation unit (18) that accumulates fibers to form a second web; a pressing part for pressing the second material sheet to form a thin sheet; and a humidification mechanism (10) that supplies humidified air (E1) to the fiber accumulation unit (18), the fiber accumulation unit (18) being provided with a rotating unit that stirs the fibers supplied from the defibrating unit, a housing (3) that houses the rotating unit, and a mesh belt (191) that is provided below the housing (3) and that conveys the second web in the conveyance direction. A second web is formed on the mesh belt (191) by stacking fibers on the mesh belt (191). The humidification mechanism (10) has a downstream nozzle (602) that is provided downstream of the fiber stacking unit (18) in the conveyance direction and supplies humidified air (E1) to the fiber stacking unit (18).

The invention discloses a method for co-producing cellulose, xylose and lignin from a lignocellulose raw material. The method provided by the invention comprises the following steps: step 1, carrying out acid impregnation on a crushed lignocellulose raw material, removing an acid impregnation liquid, and treating by adopting a steam explosion method to obtain a pretreated material; 2, washing the pretreated material with water, and carrying out solid-liquid separation to obtain a liquid phase I containing xylose and a solid material I; 3, carrying out alkali treatment on the solid material I, and carrying out solid-liquid separation to obtain a liquid phase II and a solid material II; optionally, washing the solid material II in the step 4, and carrying out solid-liquid separation to obtain a wet cellulose material and a liquid phase III; optionally, 5, drying the wet cellulose material to obtain cellulose; step 6, combining the liquid phase 2 and the optional liquid phase 3, carrying out acid treatment, and carrying out solid-liquid separation to obtain a wet lignin material; and optionally, 7, drying the wet lignin material to obtain the lignin. The separation method provided by the invention has the advantages of few types of used chemical reagents, simple process and better separation effect.

The invention discloses a crushing mechanism in a papermaking beater, which belongs to the technical field of papermaking equipment and comprises an equipment box, a crushing box is arranged at the top of the equipment box, crushing rollers are arranged on two sides in the crushing box, a grinding box is arranged in the equipment box, a grinding disc is arranged in the grinding box, and a driving motor is arranged at the top of the equipment box. A transmission shaft is arranged at the output shaft end of the driving motor, a filter plate is arranged at the bottom end of the interior of the equipment box, an inclined cutter plate is arranged at the bottom end of the transmission shaft, a first scraper is arranged on one side of the top of a mesh of the filter plate, and a second scraper is arranged below the inclined cutter plate. The raw materials are preliminarily crushed, then the preliminarily crushed raw materials are ground by the grinding disc, and finally, the ground raw materials are sheared through the second scraper at the bottommost layer and the first scraper arranged on one side of the meshes of the filter plate, so that the ground raw materials are sheared into short fibers with the size of the composite meshes, the consistency of the sizes of the raw materials is guaranteed, and the rate of finished products of the fibers is improved.

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.

An apparatus includes: a defibrating unit that defibrates a material to turn it into fibers; a fiber piling-up unit that piles up the fibers to form a second web; a pressing portion that presses the second web to turn it into a sheet; and a humidifying mechanism that supplies humidified air to the fiber piling-up unit. The fiber piling-up unit includes a rotating portion that stirs the fibers supplied from the defibrating unit, a case in which the rotating portion is housed, and a mesh belt that is provided under the case and transports the second web in a transportation direction. The second web is formed on the mesh belt by piling up the fibers on the mesh belt. The humidifying mechanism includes a downstream-side nozzle that is provided downstream of the fiber piling-up unit in the transportation direction and supplies the humidified air to the fiber piling-up unit.

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 present invention relates to a method for manufacturing a purified fiber fraction from used beverage carton (UBC), said method comprising the steps: a) subjecting UBC starting material to a polymer and aluminum film separation method to obtain a UBC polymer and aluminum fraction and a raw UBC fiber fraction; b) optionally subjecting the raw UBC fiber fraction to a coarse screening method to remove coarse particles; c) subjecting the raw UBC fiber fraction to a fine screening method to remove cellulose fines and fine particulate contaminants, wherein the fine screening method comprises at least one fine screening step and at least one washing step; d) optionally subjecting the fine screened UBC fiber fraction to a washing method to remove further contaminants; e) optionally subjecting the fine screened UBC fiber fraction to a bleaching method; f) subjecting the fine screened, and optionally bleached, UBC fiber fraction to a dewatering method to a consistency of at least wt %; and g) subjecting the dewatered UBC fiber fraction to deactivation to obtain a purified 20 UBC fiber fraction.

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 utility model relates to the technical field of papermaking production, and discloses a waste treatment and recovery device for papermaking production, which comprises a shell, a crushing mechanism and a pushing mechanism are arranged on the shell, a blanking channel is arranged at the bottom of the shell, and a filter screen plate is fixedly connected to the inner wall of the shell; and the crushing mechanism comprises an inner shell, the inner shell is fixedly connected to the inner wall of the top of the shell, and the inner wall of the inner shell is rotationally connected with a rotating shaft through a bearing. According to the waste treatment and recovery device for papermaking production, the first motor is started to drive the rotating shaft to rotate, the rotating shaft drives the crushing cutters to rotate to crush waste, the crushed waste is filtered through the filter screen plate, fine particles are discharged through the discharging channel, large-particle waste is left on the filter screen plate, and the waste crushing uniformity and the machining efficiency are improved.

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 invention provides a preparation method of a high-performance bamboo fiber glue-free molding environment-friendly material, which comprises the following steps of: separating parenchyma cells and bamboo fibers from bamboo wood serving as a raw material, performing steam explosion treatment on the parenchyma cells, performing enzyme treatment on the bamboo fibers, and performing hot pressing on the treated parenchyma cells and the treated bamboo fibers to obtain the high-performance bamboo fiber glue-free molding environment-friendly material. The static bending intensity of the high-performance bamboo fiber glue-free forming environment-friendly material reaches 38.0 MPa, the elastic modulus reaches 4.9 GPa, the internal bonding strength reaches 1.8 MPa, and the water absorption thickness swelling rate is 5.0%. The preparation method is simple, the production efficiency is high, the material is rapidly formed, an adhesive is not used, the problems that a conventional fiberboard releases formaldehyde and an adhesive-free fiberboard is insufficient in performance are solved, and the fiberboard is expected to replace a traditional fiberboard to serve as a base material of a board for high-performance furniture.

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 belongs to the technical field of insulation paper, and particularly relates to a high-peel-strength vulcanized fiber base paper production line and process for electrical insulation, and the production line comprises a rack, and a material crushing device, a material boiling device, a pulp washing device, a water filtering device, a drying device and a forming device which are positioned on the rack, an interweaving device is further arranged between the water filtering device and the drying device and comprises a driving mechanism and a needle inserting assembly, and the needle inserting assembly has the movement amount of up-down reciprocating movement towards the conveying belt by means of the driving mechanism; part of transverse fibers of the paper pulp on the surface of the conveying belt are pressed by the needling assemblies to change the direction and are staggered longitudinally and transversely with other transverse fibers of the paper pulp. By additionally arranging the interweaving device, part of the transverse fibers in the horizontal direction are pressed through the pricking needle assembly of the interweaving device, the transverse fibers are changed in direction to form the longitudinal fibers in the vertical direction or inclined, the longitudinal fibers and the transverse fibers are interwoven, and therefore the peeling strength of the body paper is improved.

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