D21B1/061

A METHOD FOR CHEMICAL PULP PRODUCTION IN A MULTI-STAGE PROCESS

A method for chemical pulp production in a multi-stage process, comprising a first process stage, comprising a woodyard comprising steps such as debarking, chipping, pile storage and/or reclaim; a second process stage, comprising a fiberline comprising steps such as cooking and/or bleaching; and at least a third process stage; wherein a first set of data is gathered at least at the first and at the second process stage, wherein the first set of data for each process stage comprises measurement results and/or parameters calculated based on measurement results, wherein the measurements and/or parameters are related to raw material, equipment, process measurements and/or product properties; the first set of data is sent to the subsequent process stage, wherein the process steps of the subsequent process stage are adjusted based on the first set of data received; a second set of data is gathered at least at the second and at the third process stage, wherein the second set of data for each process stage comprises information related to availability of processing capacity, predicted availability of processing capacity and/or required material flow or quality; the second set of data is sent to the preceding process stage, wherein the process steps of the preceding process stage are adjusted based on the second set of data received.

Fiber raw materials processing system and operating method thereof
12162052 · 2024-12-10 · ·

The present invention provides a fiber raw material processing system and its operation method. The fiber raw material processing system is composed of a cutting module, a bulk pulping module, a salt slurry processing module, a pressure screen, a separation module, an inclined screen module, and an extrusion module and a recycling module, which are connected in series. The operating method of the fiber raw material processing system is to process absorptive articles such as diapers or sanitary napkins, etc., which are retained and made into fluff fiber raw materials through the purification and separation steps performed by the modules of the fiber raw material processing system.

Absorptive article quick decomposition system and operating method thereof
12214391 · 2025-02-04 · ·

An absorptive article quick decomposition system and operating method thereof is provided. The absorptive article quick decomposition system is mainly constructed by a cutting separating module, a liquid proof reclaimed material filtering module, a recycling module, a salt slurry processing module, a plastic raw material manufacturing module, a hygroscopic raw material manufacturing module, and a fluff fiber raw material manufacturing module. The absorptive article quick decomposition system and operating method make the recycled absorbent articles become possible to be decomposed into plastic raw materials, hygroscopic raw materials and fluff fiber raw materials. In addition, organic pollutants on absorbent articles are decomposed. The purified and treated water thus recovered and the recycling is realized for good.

COMMINUTION PROCESS TO PRODUCE ENGINEERED WOOD PARTICLES OF UNIFORM SIZE AND SHAPE FROM CROSS-GRAIN ORIENTED WOOD CHIPS
20170297219 · 2017-10-19 · ·

Comminution process of wood chips to produce wood particles, by feeding wood chips in a direction of travel substantially normal to grain through a counter rotating pair of intermeshing arrays of cutting discs arrayed axially perpendicular to the direction of wood chip travel, wherein the cutting discs have a uniform thickness (Td), to produce wood particles characterized by a length dimension (L) substantially equal to the Td and aligned substantially parallel to grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) aligned normal to W and L, wherein the WH dimensions define a pair of substantially parallel end surfaces with crosscut fibers.

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PROCESSES FOR PRODUCING NANOCELLULOSE, AND NANOCELLULOSE COMPOSITIONS PRODUCED THEREFROM
20170210826 · 2017-07-27 ·

Various processes are disclosed for producing nanocellulose materials following steam extraction or hot-water digestion of biomass. Processes are also disclosed for producing nanocellulose materials from a wide variety of starting pulps or pretreated biomass feedstocks. The nanocellulose materials may be used as rheology modifiers in many applications. Water-based and oil-based drilling fluid formulations and additives are provided. Also, water-based and oil-based hydraulic fracturing fluid formulations and additives are provided. In other embodiments, polymer-nanocellulose composites are provided.

MULTIPASS ROTARY SHEAR COMMINUTION PROCESS TO PRODUCE PLANT BIOMASS PARTICLES
20170128951 · 2017-05-11 ·

A process of comminution of one or more plant biomass materials having a grain direction to produce a mixture of plant biomass particles, by feeding the plant biomass material(s) in a direction of travel either substantially parallel to or substantially randomly to the grain direction one or more times through a counter rotating pair of intermeshing arrays of cutting discs (D) arrayed axially perpendicular to the direction of plant biomass travel.

Comminution process to produce wood particles of uniform size and shape with disrupted grain structure from veneer
09604387 · 2017-03-28 · ·

Comminution process of wood veneer to produce wood particles, by feeding wood veneer in a direction of travel substantially normal to grain through a counter rotating pair of intermeshing arrays of cutting discs arrayed axially perpendicular to the direction of wood veneer travel, wherein the cutting discs have a uniform thickness (Td), to produce wood particles characterized by a length dimension (L) substantially equal to the Td and aligned substantially parallel to grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) aligned normal to W and L, wherein the WH dimensions define a pair of substantially parallel end surfaces with end checking between crosscut fibers.

Sheet manufacturing apparatus
12264436 · 2025-04-01 · ·

A sheet manufacturing apparatus that manufactures a sheet-shaped recycled paper using coarsely crushed pieces obtained by coarsely crushing a sheet containing fibers as a raw material, includes a container loading section that is configured to load a container in which the coarsely crushed pieces are housed and which has an information carrying section for carrying information related to characteristics of the housed coarsely crushed pieces, a reading section that reads the information carried by the information carrying section, a determination section that determines whether or not the coarsely crushed pieces in the container are suitable as the raw material for sheet manufacturing by the sheet manufacturing apparatus based on the information read by the reading section, and a switching section that switches between a first state in which the container is configured to be loaded into the container loading section and a second state in which the container is prevented from being loaded into the container loading section according to a determination result of the determination section.

Sheet manufacturing system
12258712 · 2025-03-25 · ·

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.

Hemp separation methods and apparatus
12276045 · 2025-04-15 ·

The present invention provides improved hemp decortication systems and methods, and include multi stage segmenting, cleaning, and combing methods and apparatus for separating fibrous plant stalk, and particularly for separating hemp bast fiber from hemp hurd.