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38 results about "Disc mill" patented technology

A disc mill is a type of crusher that can be used to grind, cut, shear, shred, fiberize, pulverize, granulate, crack, rub, curl, fluff, twist, hull, blend, or refine. It works in a similar manner to the ancient Buhrstone mill in that the feedstock is fed between opposing discs or plates. The discs may be grooved, serrated, or spiked.

Production method for reducing proportion of long fibers of cream base paper

The invention discloses a production method for reducing the proportion of long fibers of cream base paper, and belongs to the field of papermaking. The main technical scheme is as follows: raw materials comprise long fibers (one or more of cotton pulp, softwood pulp and bamboo pulp which are subjected to repulping and are ground by two serially connected disc mills until the beating degree is 25-35 degrees SR and the wet weight is 8.0-13.0 g), short fibers (hardwood pulp which is subjected to repulping and defibering and the beating degree is 15-20 degrees SR) and broken paper (subjected to repulping and defibering); adjusting the flow, mixing the three components according to the mass ratio of (8-20): (85-70): (15-0) in a pulp preparation pool, and uniformly grinding until the beating degree is 25-45 degrees SR; the white water reflux quantity is regulated and controlled in the process. And after the slurry is formed by a high-speed paper machine, wrinkling by using a ceramic or carbon steel scraper under the dryness of 55-85% at the wrinkling rate of 18-25%, and coiling and slitting to obtain the cream base paper. The quantification of the raw paper is 10-20g / m < 2 >, and the transverse dry tensile index is gt; 3.0 N.m / g, and the longitudinal wet tensile index gt; 3.0 N.m / g, and the softness lt; the bulk is gt; 6.60 m < 3 > / g, and the transverse liquid absorption height gt; and 75 mm / (100s). The process is optimized, the use amount of long fibers is remarkably reduced, meanwhile, it is ensured that the cream base paper has excellent strength and bearing performance, and the cost is remarkably reduced.
Owner:YIXIANG HEALTH TECHNOLOGY CO LTD +1

Laboratory mill and grinding material filling plunger for a laboratory mill

ActiveDE102024113618A1Grain treatmentsDisc millElectric machinery
The invention relates to a laboratory mill for grinding material, in particular designed as a cutting mill, impact mill, disc mill, knife mill, impact mill, centrifugal mill, rotor mill, rotor high-speed mill or mortar mill, comprising: a grinding mechanism (4) with a grinding mechanism housing (6) which defines a grinding chamber (18), and with a grinding mechanism rotor (16) which is rotatably driven in the grinding chamber (18) to grind the material to be ground with the grinding mechanism rotor (16) in the grinding chamber (18), wherein the grinding mechanism housing (6) has a material filling opening (26) which leads into the grinding chamber (18) in order to introduce the material to be ground from the outside through the material filling opening (26) into the grinding chamber (18), a drive motor for driving the grinding rotor in the grinding chamber (18), a grinding material feed hopper (28) which has a grinding material feed cone (30) and a funnel neck (32), wherein the grinding material feed hopper (28) is attached to the laboratory mill and the funnel neck (32) opens into the grinding material feed opening (26), such that the grinding material can be filled into the grinding material feed cone (30) and passes through the funnel neck (32) and the grinding material feed opening (26) into the grinding chamber (18), while the grinding rotor (16) rotates in the grinding chamber, a grinding material filling plunger (40) that can be inserted into the grinding material filling hopper (28), wherein the grinding material filling plunger (40) has a grinding material filling channel (50) through which the grinding material can be filled into the grinding chamber (18) when the grinding material filling plunger (40) is inserted into the funnel neck (32).
Owner:A FRITSCH GMBH & CO KG

Method for preparing lithium sulfide through continuous combustion

The invention discloses a method for preparing lithium sulfide through continuous combustion, which comprises the following steps of: melting metal lithium into a liquid state, and spraying the liquid state into a combustion chamber through a spray nozzle according to a certain speed to form lithium fog drops; elemental sulfur is heated to obtain sulfur steam, and the sulfur steam is introduced into the combustion chamber through a flow meter according to a certain flow speed; the sulfur steam reacts with the lithium fog drops in the combustion chamber to generate lithium sulfide coarse powder, and the generated lithium sulfide coarse powder is settled to a collector at the bottom of the combustion chamber; conveying lithium sulfide coarse powder obtained by the reaction to a millstone type grinding machine, and grinding in a nitrogen environment to obtain powdery lithium sulfide; the powdery lithium sulfide is put into an alumina crucible and then transferred into a push plate furnace to be sintered, and the high-purity lithium sulfide is obtained.Compared with the prior art, continuous operation can be achieved, and the per capita productivity is improved by 10 times or above; heat is self-circulated, and energy consumption is reduced by more than or equal to 80 The product purity is greater than or equal to 99.9%, and the side reaction result is 0.1%; and the process is closed, free of dust leakage and environment-friendly.
Owner:SICHUAN QUANSOLID STATE NEW MATERIALS CO LTD

High-dispersity dye color paste as well as preparation method and application thereof

The invention belongs to the technical field of ink color paste for printing and dyeing, and discloses high-dispersity dye color paste and a preparation method and application thereof.The preparation method comprises the steps that S1, grinding is conducted, specifically, dye toner is subjected to two-stage mixing and two-stage grinding treatment, disperse dye toner enters a pneumatic mixer to be mixed and enters a first-stage disc type sand mill to be ground, and the particle size of the disperse dye toner is smaller than or equal to 1200 nm; the disperse dye toner is pneumatically conveyed to a second-stage pneumatic mixer for mixing and then enters a second-stage horizontal turbine sand mill for grinding, the particle size of the disperse dye toner is smaller than or equal to 500 nm, and PDI is smaller than or equal to 0.6; s2, preparation of a dispersing agent: adding a styrene-maleic anhydride copolymer and modified polyether into a closed container, then adding an initiator, and stirring to obtain the dispersing agent; s3, slowly adding the ground disperse dye toner into the dispersing agent, continuously stirring and dispersing, and ensuring that the temperature is 30-45 DEG C to obtain mixed slurry; s4, nanometer grinding: grinding the uniformly mixed slurry in a three-stage nanometer grinding system; and S5, toning. The invention has the advantage of good dispersion performance of the dye color paste.
Owner:SERUDAN (HUBEI) IMAGE PIGMENT CO LTD

Preparation method of insulating slurry

The invention discloses a preparation method of insulating slurry. The preparation method comprises the following operation steps: S1, raw material selection: selecting Chinese fir with different growth years for cutting; s2, chipping is conducted; s3, washing with water; s4, performing cooking; s5, pulp screening; s6, oxygen removal: carrying out lignin removal treatment on the paper pulp obtained in the step S5 in an oxygen and alkaline environment; s7, pulping: pulping the pulp by adopting a Varley mill or a disc mill, so that fibers are fibrillated, and the mechanical property of the pulp is enhanced; and S8, sheet making and performance detection: performing sheet making on the pulp in the S7 to form paper, performing performance detection on the prepared paper, and taking the pulp corresponding to the paper with the performance meeting the requirement as the insulating pulp. On the basis of conventional sulfate pulping, raw material selection and beating degree control are systematically researched, the provided preparation method of the insulation pulp is provided, the tearing index in the quality indexes of paper made of the prepared fir insulation pulp is not lower than 11.0 mN.m < 2 > / g, the conductivity is not higher than 3.0 ms / m, and the requirements of existing standards are met.
Owner:HUNAN JUNTAI NEW MATERIAL TECH CO LTD +1

Pulping system

According to the pulping system provided by the utility model, the structure of the pulping system is improved, so that different working conditions can be quickly switched according to the difference of product strength indexes, the pulping effect is ensured, and meanwhile, the waste of energy consumption is avoided. The utility model provides a pulping system which comprises a before-beating tower, a plurality of after-beating towers, a first disc mill and a second disc mill, the first disc mill and the second disc mill are used for supplying materials to the after-beating towers, and the pulping system can be switched between a first working condition and a second working condition. Under the first working condition, the before-knocking tower, the first disc mill and the second disc mill are sequentially communicated, and the first disc mill and the second disc mill jointly supply materials to the after-knocking tower; and in the second working condition, the first disc mill and the second disc mill are both directly communicated with the before-knocking tower, and the first disc mill and the second disc mill supply materials to the corresponding after-knocking tower.
Owner:ASIA SYMBOL SHANDONG PULP & PAPER

Pulping process for improving production efficiency of insulating cardboard

The invention relates to the technical field of production of insulating paperboards, in particular to a pulping process for improving the production efficiency of the insulating paperboards, and solves the problems of how to improve the pulping process, so that the product has good air permeability, water vapor is easy to discharge, the drying time is short, and the production efficiency is improved. A medium-concentration pulping process is adopted, according to the pulp feeding amount, the pulping concentration and the mill power, the abrasive disc combination is reasonably selected and matched, a DDR tandem type double-disc mill PLC is adopted for constant-power pulping, infiltration treatment is added before pulping, fiber cutting is effectively reduced, the fiber length is guaranteed, the mechanical strength is high, the air permeability is good, the drying time is shortened, and the production efficiency is improved.
Owner:GUANGXIN NEW MATERIAL TECH (CHANGSHA) CO LTD

Pulping device with multiple disc mills connected in series and in parallel

The utility model relates to the technical field of papermaking, in particular to a pulping device with multiple disc mills connected in series and in parallel, which comprises a control disc mill system, a first disc mill and a second disc mill are arranged on one side of a control end of the control disc mill system, and a first rotating shaft and a second rotating shaft are fixedly arranged on the first disc mill and the second disc mill respectively. One end of the second rotating shaft is arranged at the control end of the control disc mill system, and a connecting assembly is arranged between the first rotating shaft and the second rotating shaft. The number of the rotating shafts for controlling the two disc mills is two, the connecting assembly is arranged between the two rotating shafts, and the connecting rod is inserted into or far away from the through hole in the fixed ring through sliding of the sliding ring in the connecting assembly, so that the purpose of connecting and separating the two rotating shafts is achieved.
Owner:LEE & MAN PAPER MFG

A dispersing apparatus for producing an insulation paper pulp

ActiveCN120844396BTransportation and packagingMixersFiberDisc mill
The application relates to the technical field of insulation paper dispersion, and discloses a dispersion equipment for insulation paper pulp production, which comprises a tank body used for containing insulation paper pulp to be dispersed; a primary dispersion assembly arranged in the tank body and used for rotating and disturbing high-concentration high-flocculation paper pulp flowing into the tank body so as to reduce the paper pulp concentration and break large flocculation bodies; and a secondary dispersion assembly arranged in the tank body and located downstream of the primary dispersion assembly and used for applying shearing action to the paper pulp dispersed by the primary dispersion assembly so as to depolymerize fiber flocculation bodies in the paper pulp. The dispersion equipment for insulation paper pulp production aims to solve the problems that the existing disc mill has a narrow applicable concentration range due to the limitation of the mill disc type, the dispersion effect of the paper pulp with too heavy flocculation is poor, and the paper pulp with different concentrations and different flocculation degrees cannot be efficiently and uniformly dispersed in industrialized production.
Owner:YILI TECH TONGSHAN CO LTD

Method for recycling of chemi-mechanical pulp sludge

This invention relates to the field of pulp and paper technology, specifically a method for recycling chemimechanical pulp residue. The method includes the following steps: S1: Pre-treating the chemimechanical pulp residue by separating wood chips, wood strips, and wood dust according to size using a drum-type grading screen; S2: Performing at least two stages of grinding on the pre-treated pulp residue, first coarsely grinding it into granules using a wood grinder, and then finely refining it into wood fibers using a high-speed refiner; S3: Performing multi-stage gradient screening on the wood fibers to remove different types of impurities; S4: Modifying the screened wood fibers using a low-consistency dual-disc mill to improve their water absorption and binding strength; S5: Mixing the modified wood fibers with long fibers and obtaining the finished fiber through a three-stage concentration process. This invention constructs a complete technical chain from graded pre-treatment to specific mixing and concentration, effectively solving the problems of equipment blockage caused by uneven pulp residue composition and poor binding strength of recycled fibers, achieving high yield and high-quality recycling of pulp residue.
Owner:SHANDONG BOHUI PAPER INDUSTRY CO LTD

A method for efficient gradient pulping recycling and reuse of waste cotton textiles and preparation of functional fibers.

This invention discloses a method for the efficient gradient pulping recycling and reuse of waste cotton textiles and the preparation of functional fibers. This invention belongs to the field of textile printing and dyeing processing. After being cut, waste cotton textiles undergo pre-impregnation with chemical agents, followed by gradient pulping treatment using a disc mill and a Walli beater, and bleaching to obtain cotton pulp fibers prepared from waste cotton textiles. This invention uses the various mechanical forces generated by the pulping machine to cause certain physical changes in the fibers, further refining, swelling, kneading, and crushing them, promoting the formation of individual fibers. Further bleaching removes color and other impurities to achieve fiber whiteness. Pulping increases the hydrogen bonding force between fibers, improving the strength and softness of the paper sheet, meeting the requirements for normal papermaking. Simultaneously, the high-quality cellulose obtained after treatment can be further chemically modified to prepare functional cellulose, providing more directions for cellulose reuse.
Owner:QILU UNIVERSITY OF TECHNOLOGY (SHANDONG ACADEMY OF SCIENCES)

System and method for recovering delivery material using a disc mill

A method for recovering metals from waste wherein the material is sieved to separate non-fibrous feedstock. The non-fibrous feedstock is then crushed using a disc mill to further separate it, thereby obtaining a mixture consisting of a metallic fraction and a non-metallic residue. The metal fraction may then be collected. In addition, a system employing the method is used to efficiently process such materials.
Owner:托马斯·A·瓦莱里奥

Multi-stage sealing double-main-shaft nail disc mill

PendingCN121266661AEngine sealsCocoaDisc millWorking environment
The invention discloses a multi-stage sealing double-spindle nail disc mill which comprises a first spindle on the feeding side, a second spindle on the non-feeding side, a millstone annularly arranged at the joint of the first spindle and the second spindle and a cavity communicated with the millstone, the first spindle and the second spindle are coaxially and reversely rotated, a sealing structure is arranged at the joint of the millstone and the cavity, and the sealing structure is arranged in the center line direction of the millstone. The sealing structure sequentially comprises a first-stage sealing unit, a second-stage sealing unit and a third-stage sealing unit from the end away from the cavity to the end close to the cavity, the first-stage sealing unit is in contact type mechanical sealing, and the second-stage sealing unit and the third-stage sealing unit are in non-contact type air curtain sealing. By means of a contact-non-contact fused multi-stage sealing structure, powder is thoroughly isolated through a non-contact air curtain, a clean working environment is created for contact type main sealing, sealed powder is converted into sealed gas, and zero leakage is achieved under the working conditions of superfine powder, high pressure and high speed.
Owner:CNBM (HEFEI) POWDER TECHNOLOGY EQUIPMENT CO LTD

Preparation and application of a firm, biodegradable and recyclable straw protection film

PendingCN122304228ADisc millElectrical battery
This invention relates to the fabrication and application of a robust, biodegradable, and recyclable straw protective film, belonging to the field of zinc-ion battery technology. The straw raw material, after hydrothermal and chemical pretreatment, is pulped using a disc mill and stored at low temperature. The pulp is then sulfonated to obtain a mechanical pulp through a chemical reaction. An ionic liquid is slowly added to the sulfonated mechanical pulp and dissolved. The mixture is transferred to a glass plate and coated onto a film using a film-coating machine. In-situ regeneration treatment retains lignin and attaches sulfonic acid groups to cellulose fibers, enhancing the water stability of the cellulose fibers and ensuring the integrity and mechanical strength of the SLC biofilm during long-term electrochemical cycling immersed in an aqueous electrolyte. The resulting SLC biofilm retains the rapid ion transport channels within the cellulose fibers, balances the Zn flux at the anode interface, and promotes Zn... 2+ Rapid three-dimensional diffusion at the nucleation interface significantly improves the cycling stability of the zinc electrode under high current density.
Owner:BEIJING INST OF TECH +1

Processing technology for preparing ampelopsis grossedentata feed raw material by utilizing waste stem leaves of ampelopsis grossedentata

The invention belongs to the technical field of feeds, and particularly relates to a processing technology for preparing an ampelopsis grossedentata feed raw material by utilizing waste stem leaves of ampelopsis grossedentata. The specific process comprises the following steps: 1) crushing waste stems and leaves after ampelopsis grossedentata is picked to be less than 30cm by adopting a wet material crusher; 2) rolling the crushed ampelopsis grossedentata stems and leaves for 2-3 times by using a tooth type three-roller roller press to obtain rolled ampelopsis grossedentata stems and leaves; 3) carrying out disc milling on the rolled ampelopsis grossedentata stems and leaves for 2-3 times by using a disc mill (with rated power of 3500 W and rotating speed of 1500 revolutions per minute), and screening by using a screen to obtain ampelopsis grossedentata particles of less than 20 meshes; 4) adjusting the moisture of the ampelopsis grossedentata particles to about 50-60%, putting the ampelopsis grossedentata particles into a steam explosion reaction device, and maintaining for 3-5 minutes under the steam explosion pressure of 1-2 MPa to obtain steam-exploded ampelopsis grossedentata particles; 5) uniformly mixing the steam-exploded ampelopsis grossedentata particles, cellulase, saccharomyces cerevisiae powder and lactobacillus plantarum powder, and adjusting the moisture to 30-40%; and (6) loading into a fermentation tank or a breathing bag, and fermenting for 3-5 days to obtain the ampelopsis grossedentata feed raw material. The ampelopsis grossedentata feed raw material prepared by the invention has obvious sour and sweet smell, and compared with a control group, the ampelopsis grossedentata feed raw material has the advantages that the crude protein content is increased by 15.41%, the crude fiber content is reduced by 49.93%, the total flavone content is increased by 33.62%, the dihydromyricetin content is increased by 36.47%, and the ampelopsis grossedentata feed raw material has acid fragrance, has good antibacterial ability and antioxidant ability, and can be used for preparing the feed. The feeding nutritional value and the economic value of the ampelopsis grossedentata waste are effectively improved.
Owner:过冬冬

Grinding disc of disc mill

The utility model belongs to the technical field of papermaking abrasive discs, and particularly relates to a disc mill abrasive disc which comprises a first abrasive disc body and further comprises a second abrasive disc body movably installed on one side of the first abrasive disc body, polyethylene layers are fixedly arranged in the first abrasive disc body and the second abrasive disc body, and silicon carbide layers are fixedly arranged at the bottoms of the polyethylene layers. The high-speed steel layer is fixedly arranged at the bottom of the silicon carbide layer, the first abrasive disc and the second abrasive disc can be spliced, then the polyethylene layer is known due to excellent wear resistance, impact resistance, chemical stability and low friction coefficient, and the high-speed steel abrasive disc becomes an ideal abrasive disc material in papermaking machinery due to the characteristics; the high hardness, excellent wear resistance, high temperature resistance and corrosion resistance of the silicon carbide layer are utilized, then the high hardness of the high-speed steel layer is utilized to enhance the strength of the first abrasive disc and the second abrasive disc, the abrasive disc materials are good enough, the service life of the abrasive disc can be prolonged, and the working time of the abrasive disc is prolonged.
Owner:HANDAN CHENXU MACHINERY MANUFACTURING CO LTD

Laboratory mill and grinding material filling plunger for a laboratory mill

ActiveDE102024113618B4Grain treatmentsDisc millElectric machine
Laboratory mill (1) for grinding material, in particular designed as a cutting mill, impact mill, disc mill, knife mill, impact mill, centrifugal mill, rotor mill, rotor high-speed mill or mortar mill, comprising: a grinding mechanism (4) with a grinding mechanism housing (6) which defines a grinding chamber (18), and with a grinding mechanism rotor (16) which is rotatably driven in the grinding chamber (18) to grind the material to be ground with the grinding mechanism rotor (16) in the grinding chamber (18), wherein the grinding mechanism housing (6) has a material filling opening (26) which leads into the grinding chamber (18) in order to introduce the material to be ground from the outside through the material filling opening (26) into the grinding chamber (18), a drive motor for driving the grinding rotor (16) in the grinding chamber (18), a grinding material feed hopper (28) which opens into the grinding material feed opening (26), such that the grinding material can be filled into the grinding material feed hopper (28) and passes through the grinding material feed hopper (28) and the grinding material feed opening (26) into the grinding chamber (18), while the grinding rotor (16) rotates in the grinding chamber (18), a grinding material filling plunger (40) that can be inserted into the grinding material filling hopper (28), wherein the grinding material filling plunger (40) has a grinding material filling channel (50) through which the grinding material can be filled into the grinding chamber (18) when the grinding material filling plunger (40) is inserted into the grinding material filling hopper (28), wherein the grinding material filling plunger (40) has at least a section of a screw section (52) axially, in which the grinding material filling channel (50) runs in a helical or spiral manner in the grinding material filling plunger (40).
Owner:A FRITSCH GMBH & CO KG

A method for extracting alginate from brown algae through high-shear digestion

The present application belongs to the technical field of seaweed chemical industry, and particularly relates to a method for extracting alginate from brown algae by high-shear digestion. The method comprises the following steps: 1) digestion: adding brown algae into a high-shear digestion reactor for alkali digestion, wherein the high-shear reactor is a disc mill type reactor; and 2) obtaining a product: obtaining alginate from the digestion solution. Preferably, the rotation speed of the grinding disc is 500-1500 r / min. The present application realizes the coupling of physical shearing and chemical digestion of mechanical elements, breaks the raw materials through physical shearing to promote the mixing of materials and improve the digestion rate, accelerates the disintegration of the raw materials through chemical digestion, and reduces the action intensity of the mechanical elements, so that the mechanical elements do not need to be frequently replaced, thereby providing convenience for production operation.
Owner:INSTITUTE OF PROCESS ENGINEERING CHINESE ACADEMY OF SCIENCES

Lead protection device of bearing of roller disc type coal mill

The utility model provides a lead protection device of a bearing of a roller disc type coal mill. The lead protection device is characterized in that connectors are fixed on two sides of a metal tube; the bent pipe is connected to the connector, and a nut is arranged at the tail end of the bent pipe. The spring is wound on the metal tube; and the outer side wall of the spring is coated with a wear-resistant layer. According to the overall structure, the service life is prolonged, and meanwhile the use strength and the limiting protection capacity of the device are improved.
Owner:XINJIANG HUADIAN HAMI THERMAL POWER CO LTD

Disc mill for grinding fiber pulp

PendingCN121629791APulp beating/refining methodsFiberDisc mill
The invention relates to a disc mill comprising: a rotor disc which is connected to a rotary drive shaft with a central region in a floating manner; the first stator disc is located on the driving motor side, and a first abrasive disc gap is formed between the first stator disc and the rotor disc; the second stator disc is located on the side opposite to the driving motor side, and a second abrasive disc gap in fluid communication with the first abrasive disc gap is formed by the second stator disc and the rotor disc; a gap adjustment device adapted to move at least one of the first and second stator discs in an axial direction; the fiber pulp has fiber pulp inlet pressure when entering the disc mill on the driving motor side of the rotor disc and / or on the side opposite to the driving motor side, and the grinding teeth forming the first grinding disc gap and the second grinding disc gap have different grinding tooth structures. The difference of the grinding tooth structures leads to the fact that one grinding sheet gap has lower fiber pulp passing amount between the grinding teeth relative to the other grinding sheet gap and thus has higher pulp layer thickness so as to exactly offset unbalanced pulp pressure on two sides of the rotor disc caused by the combined action of the fiber pulp inlet pressure and the gap adjusting device.
Owner:ANDRITZ CHINA

A method for controlling stickies in waste paper pulp

The application provides a waste paper pulp adhesive control method, which comprises the following steps: conveying waste paper to a hydraulic pulper for disintegration, then conveying the waste paper to a high-concentration heavy-duty degritting device, a coarse screen machine, a low-concentration heavy-duty degritting device, a fine screen machine, a disc thickener, a hot disperser and a low-concentration disc mill in sequence for pulping, storing the pulp in a post-beating tank for stirring and storage after pulping, then conveying the pulp to a pressure screen for feeding and screening, then passing through a headbox, a wire part, a press part, a drying part, a sizing part, a coating part, a calender part and a winding part of a paper machine in sequence to form paper, wherein 2-5 kg / ton of dry pulp of bentonite with a mass concentration of 2-3% is added into the post-beating tank, and white water recycled from the wire part of the paper machine is subjected to deep air flotation treatment. By adding bentonite with a set concentration into the post-beating tank and cooperating with the deep air flotation treatment technology, the content of adhesive in the waste paper can be greatly reduced, and the adhesive removal rate can reach more than 94%.
Owner:DONGGUAN NINE DRAGONS PAPER IND

A large-scale size-reduction method for improving the reaction performance of biomass raw materials

The application discloses a large-scale size-reducing method for improving reaction performance of biomass raw materials, which comprises the following steps: steam treatment of biomass raw materials after water washing and soaking to obtain steamed materials; extrusion treatment of the steamed materials by a double-screw extrusion impregnation machine to obtain extruded materials, which are in the form of coarse wood filaments; water is added to the extruded materials to obtain materials with a solid content of 15-35%, which are ground by a disc mill under normal pressure; during the grinding process, fiber bundles in the biomass raw materials are microfilamentized to obtain biomass materials with improved reaction performance. By the combined use of the double-screw extrusion impregnation machine and the disc mill, the present application can cut fibers, reduce the particle size of the biomass raw materials, realize dissociation and floc separation of the fibers, expose more reaction sites, and improve the specific surface area and reaction performance of the biomass raw materials. In addition, the double-screw extrusion impregnation machine and the disc mill used in the present application are both suitable for large-scale and industrial production.
Owner:INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY

Method for removing organic pollutants through disc mill driven piezoelectric catalysis

The invention relates to a method for removing organic pollutants through disc mill driven piezoelectric catalysis, to-be-treated organic pollutants and a piezoelectric catalyst are added on the surface of a polishing pad, the piezoelectric catalyst is used as a grinding material, and a gasket performs disc mill periodic motion on the surface of the polishing pad under the action of mechanical force driven by a disc mill, so that the surface of the polishing pad is polished. Pressure generated between the gasket and the polishing pad can drive the piezoelectric catalytic effect to remove organic pollutants to be treated. According to the scheme, the catalytic efficiency is remarkably improved, and the energy consumption is greatly reduced; solvent dependence can be avoided, and the application scene is expanded; non-biodegradable organic pollutants, even perfluorinated compounds, can be removed in a targeted manner; a piezoelectric catalysis technology driven in a new mode is developed, and a new thought is provided for popularization and application of the piezoelectric catalysis technology.
Owner:SUN YAT SEN UNIV

Process for preparing paperboard core layer by grinding chemi-mechanical pulp

PendingCN121407414AFlexible coversWrappersFiberDisc mill
A paperboard core layer preparation process for performing accurate grinding treatment on chemi-mechanical pulp comprises a step of preparing the chemi-mechanical pulp through a chemi-mechanical pulp production line, and further comprises the following steps: pulp supply: the chemi-mechanical pulp production line provides the chemi-mechanical pulp to a double-disc mill; pulping: performing accurate grinding processing on the chemithermomechanical pulp by using the double-disc mill to obtain accurately ground chemithermomechanical pulp; material mixing: conveying the finely ground chemi-mechanical pulp to a core-layer pulp mixing tank, and mixing with chemi-mechanical pulp, waste pulp and chemical pulp in the core-layer pulp mixing tank to form mixed pulp; and paper making: conveying the mixed pulp to a PM32 paper machine for paper making. Accurately-ground chemi-mechanical pulp is added into the core layer through stable pulp preparation and is uniformly mixed with non-accurately-ground chemi-mechanical pulp and broken paper pulp, and the fiber length and the separating degree are balanced, so that the fiber interweaving capacity of the core layer is improved, the fibers are interwoven more tightly, the binding force between the fibers is enhanced, and the fiber bonding strength and the folding strength are improved. Compared with the prior art, the production cost can be greatly reduced on the premise of ensuring the performance of the paperboard.
Owner:DONGGUAN NINE DRAGONS PAPER IND

Method for improving retention rate of pulp by blending and grinding tobacco raw materials and medium and long fibers

PendingCN120899005ATobacco preparationTobacco treatmentFiberDisc mill
The invention relates to a method for improving the retention rate of pulp by blending and grinding tobacco raw materials and medium and long fibers, and belongs to the technical field of paper-making process reconstituted tobacco. The method comprises the following steps: uniformly mixing extracted tobacco raw materials with medium and long fibers to obtain a mixed material; the mixed material is subjected to 1-3-level uniform rough hydrolysis through a disc mill under the dryness of 30%-50%, and a rough hydrolysis product is obtained; a disc mill is adopted to feed a rough hydrolysis product step by step to perform middle-concentration and high-concentration (5-15%) pulping, and the retention rate of the pulp is improved through the effects of adsorption, interception, combination and the like among pulp components. According to the method disclosed by the invention, the retention rate of the pulp is increased by 5.0%-30.0%, and the concentration of the under-net concentrated white water is reduced by 5.0%-60.0%.
Owner:KUNMING UNIV OF SCI & TECH

A wood pulp double-disc refiner

ActiveCN224678420UDisc millElectric machine
The utility model discloses a kind of wood pulp double-disc mill beating device, it is related to beating technical field, including beating box, the wood pulp feeding chute is fixed in the top of beating box, double stirring mechanism, double-disc mill beating mechanism and auxiliary beating mechanism are arranged from top to bottom in the box of beating box, the double stirring mechanism includes the rotating motor one being located in the middle position of beating box top, the rotating motor one bottom is connected with shaft one, the shaft one is extended to beating box inside by the hole opening of upper box body passing through. The utility model realizes the efficient stirring mixing of wood pulp by the forward and reverse operation of motor in double stirring mechanism, and the stirring blade mixes wood pulp, realizes the efficient stirring mixing of wood pulp, realizes more fine grinding of wood pulp by setting auxiliary beating mechanism, and the remnant precipitate is handled by the flexible three collecting tanks in the precipitate impurity processing device, and the cleanliness of device is improved.
Owner:MAANSHAN HUAWANG NEW MATERIALS TECH LTD

Rumex hanus harvesting and fermenting integrated device

The utility model discloses a rumex hanus harvesting and fermenting integrated device which comprises a harvester and a harvesting frame, an air pipe is arranged at the front end of the harvesting frame, air holes are formed in the air pipe, a stirring tank is arranged in the harvester, the stirring tank is connected with a probiotic tank, a disc mill is arranged on the stirring tank, and an extrusion conveyor is arranged at the front end of the disc mill. A meshing shear is arranged at the inlet end of the extrusion conveyor, a trailer is connected to the rear portion of the harvester, a fermentation tank is arranged in the trailer, the bottom of a stirring tank is connected with the fermentation tank through a slurry pump, harvested azolla filliculoidas is directly sheared through the meshing shear, then probiotics are added into the stirring tank, and sufficient stirring and mixing are conducted. Finally, the stirred azolla filliculoidas is conveyed into a fermentation tank to be fermented, the whole process is completed from harvesting to filling fermentation together, and the transportation cost is reduced; in addition, the air pipe located at the front end of the harvesting frame can spray out air during harvesting, and dust removal is carried out on the azolla filliculoidas.
Owner:LIAONING AIPULUOSI FEED

Paper pulp fiber mechanical force devillicating and brooming equipment

The invention provides paper pulp fiber mechanical force devillicating and brooming equipment, and relates to the technical field of pulping and papermaking, the paper pulp fiber mechanical force devillicating and brooming equipment comprises a disc mill support frame, a feeding driving motor, a disc mill driving motor, a disc mill guide part, a fixed millstone, a feeding dispersing mechanism and an adjusting driving mechanism; the feeding driving motor is fixedly connected to the upper part of the feeding box body; the disc mill driving motor is fixedly connected to the interior of the disc mill driving box; the disc mill material guide part is rotationally connected to the interior of the disc mill treatment box; the fixed grinding disc is fixedly connected to the inner side of the disc grinding treatment box; the feeding dispersing mechanism is arranged in the feeding box body; the adjusting driving mechanism is arranged in the disc mill treatment box, the treatment strength can be dynamically adjusted according to paper pulp with different characteristics, the adaptability of the equipment to various raw materials is improved, and the problems that when paper pulp with different characteristics is treated in the prior art, a millstone needs to be integrally replaced, time is consumed, the cost is high, and the productivity is affected due to shutdown are solved.
Owner:VINDA PAPER ZHEJIANG

Mortar disc integrated adsorption friction catalytic purifier and manufacturing method and application thereof

The invention discloses an acetabular disc integrated adsorption friction catalytic purifier as well as a preparation method and application thereof, and belongs to the technical field of environment. The mortar-disc integrated adsorption friction catalytic purifier comprises a mortar-disc integrated mill and a filtering friction catalytic adsorption purifier, a round head of a medicine permeating grinding pestle in the mortar-disc integrated mill is matched with a grinding mortar of an upper mortar-disc integrated millstone, and a lower millstone is arranged below the upper mortar-disc integrated millstone. The filtering friction catalytic adsorption purifier is arranged below the lower disc millstone; the filtration friction catalysis adsorption purifier is provided with an upper adsorption friction catalysis disc, a friction catalysis driving disc, a lower adsorption friction catalysis disc and a bearing net from top to bottom. According to the mortar and disc integrated adsorption friction catalytic purifier, mechanical cracking mortar mill, disc mill and permeation dosing are combined, the cracking, extracting and purifying capacity is improved to the maximum extent, the agent use efficiency is improved, and energy consumption is reduced; filtration separation, friction catalysis and adsorption enrichment are combined, heavy metals in an extracting solution are synchronously subjected to complex breaking, adsorption and purification, and the heavy metals and refractory organic pollutants in fly ash or soil are removed.
Owner:SHENYANG LIGONG UNIV

Production of moldable cellulosic fiber pulp

A method of producing moldable cellulosic fibers from a cellulosic fiber material, the method comprising: mechanically pre-treating a feedstock to form a fibrous material having a fiber length distribution such that at least 90% of the fibers have a length of less than about 40 millimeters; dewatering the fiber ingredient to produce a first filtrate and a dewatered fiber cake having a moisture content of less than about 50% (by weight); pulping the dehydrated fiber cake at a temperature in the range of 45 to 95 DEG C to produce a pulpified fiber material having a consistency of less than about 5% fiber (by weight); washing the pulpified fibrous material to produce a cake of cellulosic fibers having a consistency of at least 10% fibers (by weight) and a second filtrate; and refining the cake of cellulosic fibers in at least one disc mill to produce moldable cellulosic fibers.
Owner:PAPYRUS AUSTRALIA