35results about How to "Improve pulping" patented technology

The invention discloses a rod milling method. Two ends of a rod milling barrel are respectively connected with a hollow feeding shaft and a hollow discharge shaft by using bolts, and horizontally supported on two main shaft bushings; a lining plate is arranged inside the barrel body; a plurality of milling rods of which the lengths are a little shorter than the length of the barrel are arranged inside the barrel and mill together with materials when rotating inside the barrel; a plurality of holes are distributed in the surface of a discharge end cover of a rod mill; a cavity formed by a barrel end cover or a plate with the same shape is arranged between the discharge sides of the discharge end cover; the sizing agent at the discharge end of the rod milling barrel is discharged out from the holes in the discharge end cover of the rod mill; the discharged sizing agent is taken to the upper part of the hollow shafts of the barrel by the rotating cavity, and is forcibly discharged.

The invention relates to a gas-liquid-solid waste comprehensive treatment and resource utilization system, which comprises a grinding device, a pulping device and a gasification device. The grinding device comprises a feeding device and a mill. The feeding device is fed with carbon-containing raw material solid waste, waste water liquid and additives, and a formed mixture is sent to the mill for grinding to form a slurry A, and the slurry A is sent to the pulping device; the pulping device comprises a pulping body, a mixing pulping intelligent guidance system and a modifying conditioning device, wherein the mixing pulping intelligent guidance system guides the modifying conditioning device to perform conditioning treatment and ultrasonic treatment on the slurry A passing into the pulping body to generate a slurry B. The gasification device comprises a gasification furnace, wherein the gasification furnace is fed with the slurry B, which is prepared from the carbon-containing raw material solid waste and the waste water liquid by the front grinding device and pulping device, for pyrolysis and gasification to generate usable gas. The system provided by the invention is a system for comprehensive treatment of solid waste, waste liquid and waste gas.

The invention discloses a pulp beating and refining device for papermaking production, comprising a tank body, a pulp stirring mechanism and a pulp grinding mechanism, wherein the tank body is provided with a first partition plate and a second partition plate, the first partition plate and the second partition plate divide the inner cavity of the tank body into a stirring chamber, a grinding chamber and a functional chamber from top to bottom in sequence, and the tank body is provided with a feeding port, a discharging port and a controller. The pulp stirring mechanism comprises a motor bracket, a stirring motor, a stirring shaft and stirring blades. The pulp grinding mechanism comprises a protective shell, a reducer, an upper grinding disc, a lower grinding disc, and a grinding groove. Agrinding gap adjusting mechanism comprises a lifting push plate, a push rod, a sliding rod, a fixed seat, a first slider, a second slider, a first hinge rod, a first cross rod, a second hinge rod, a second cross rod and a bidirectional servo cylinder. The first partition plate is provided with a material discharging pipe communicating with the stirring chamber and the grinding chamber, the material discharging pipe is connected in series with a solenoid valve. The pulp beating and refining device has the advantages of simple structure and strong practicability.

The invention discloses a viscosity adjusting admixture for spray construction and a preparation method thereof. The viscosity adjusting admixture is composed of following components in parts by weight: 60 to 90 parts of ultrafine powder, 5 to 10 parts of a rheology modifier, 5 to 10 parts of an aggregate wrapping agent; 0.5 to 1 part of an air entraining agent; 1 to 10 parts of a reinforcing component; and 1 to 10 parts of a setting control component; wherein the ultrafine powder is ultrafine limestone flour with a size of 600 to 1000 meshes, and the aggregate wrapping agent is a nano aggregate wrapping agent. The provided viscosity adjusting admixture can reduce the rebound rate, improves the construction efficiency, enhances the strength of all stages, and obviously improves the qualityof construction engineering that uses motor spraying and concrete spraying. The admixture can be used to adjust the viscosity of a spraying material. The pipe obstruction is inhibited. The construction efficiency is improved. The rebound rate of spraying construction, the strength of materials of all stages, and the bonding strength are all improved.

The invention discloses white fair-faced concrete for a prefabricated part and a preparation method of the white fair-faced concrete. Each cubic meter of the concrete comprises the following components by weight: 320-400kg of cement, 50-190kg of an admixture, 820-1010kg of coarse aggregate, 630-980kg of fine aggregate, 0-15kg of a homogeneity regulator, 5-16kg of a water reducing agent, 145-170kg of water and 0-35kg of titanium dioxide, and the total volume weight of the concrete is 2320-2430kg/m<3>. The C35-C80 grade white fair-faced concrete with high whiteness requirements such as light white and creamy white can be obtained, the requirements for high early strength and rapid demolding of components are met, the concrete is environmentally friendly, low in cost and flexible and adjustable in flowability, the concrete surface is flat, fine and smooth, the color is uniform and basically consistent, secondary decoration is not needed, production equipment does not need to be transformed or added, and the concrete can be applied to fabricated buildings or wind power concrete tower components, and has practical production operability and popularization value.

The invention discloses high-strength mica paper. The high-strength mica paper is prepared through pulping and papermaking from a mica plate, urea resin, glass fiber, polyacrylamide, ethylenediaminetetraacetic acid and water, wherein relative to 100 parts of water by weight, the using amount of the mica plate is 200 to 300 parts by weight, the using amount of the urea resin is 36 to 45 parts by weight, the using amount of the glass fiber is 10 to 25 parts by weight, the using amount of the polyacrylamide is 5 to 10 parts by weight, and the using amount of the ethylenediaminetetraacetic acid is 4 to 10 parts by weight. The high-strength mica paper has extremely high mechanical strength, and makes up the defect that the mica paper is low in mechanical strength in the application process.

The invention discloses high-strength mica paper. The high-strength mica paper is prepared from mica sheets, urea resin, glass fibers, polyacrylamide, ethylene diamine tetraacetic acid and water through pulping and papermaking, wherein in terms of 100 parts by weight of water, the high-strength mica paper is prepared from the components in parts by weight as follows: 200-300 parts of the mica sheets, 30-35 parts of urea resin, 10-25 parts of the glass fibers, 5-10 parts of polyacrylamide and 4-10 parts of ethylene diamine tetraacetic acid. The high-strength mica paper has quite high mechanical strength and overcomes the defect of low mechanical strength of the mica paper in an application process.

The invention discloses resin composite mica paper. A preparation method of the resin composite mica paper includes: preparing a mica layer; preparing a resin layer, to be more specific, mixing novolac epoxy resin, polyimide resin, glycol ether, Texanol and dibutyl phthalate with water, performing thermal treatment, and performing extrusion forming to obtain the resin layer; performing resin compositing on the mica layer and the resin layer, to be more specific, placing the mica layer on the resin layer, performing hot-pressing resin compositing, and naturally cooling to obtain the resin composite mica paper. The resin composite mica paper has the advantages of excellent insulating performance and excellent high temperature resistance of the mica paper and is quite high in mechanical strength and toughness.

The invention discloses purification equipment for waste paper pulping and with a suspension tank device. The equipment comprises a box body, a dewatering and screening device and a suspension purification device, wherein the box body is communicated with the dewatering and screening device; the dewatering and screening device is communicated with the suspension purification device; the upper endof the box body is fixedly connected with a first motor; the output end of the first motor penetrates through the box body; the first motor is electrically connected with an external power supply; theoutput end of the first motor is fixedly connected with a connecting rod; and the lower end of the connecting rod is fixedly connected with a plurality of first stirring rods. According to a scheme in the invention, the possibility that floating impurities enter the box body can be reduced; therefore, during subsequent filtration and water treatment, the impurities are not mixed into discharged wastewater, so the time and purification burden of the suspension purification device for treating the wastewater are reduced, the purification operation of the suspension purification device on discharged wastewater is facilitated, and treatment efficiency and treatment quality during wastewater can be improved.

The invention discloses high-strength mica paper. The high-strength mica paper is prepared from mica sheets, polyvinyl resin, asbestos, polyacrylamide, ethylenediaminetetraacetic acid and water through pulping and papermaking; in terms of 100 parts by weight of the water, the high-strength mica paper is prepared from 200-300 parts by weight of the mica sheets, 36-45 parts by weight of polyvinyl resin, 10-25 parts by weight of asbestos, 5-10 parts by weight of polyacrylamide and 4-10 parts by weight of ethylenediaminetetraacetic acid. The high-strength mica paper has quite high mechanical strength and overcomes the defect of poor mechanical strength in an application process of the mica paper.

The invention discloses a binary surface-to-surface adsorption type dispersing agent for slurry forming of low-rank coal and preparation method of the dispersing agent, belonging to the field of dispersing agent. The preparation method comprises the steps that firstly, graphite is oxidized to obtain graphite oxide; then a carboxyl group on the edge of the graphite oxide is sequentially subjected to acylating chlorination and esterification; and then hydrophilic chains are grafted through an emulsion polymerization method so as to obtain the surface-to-surface adsorption type dispersing agent for slurry forming of low-rank coal. The dispersing agent has a central hydrophobic anchoring group similar to the surface structures of non-caking coal, sub-bituminous coal and lignite, so the dispersing agent can realize surface-to-surface adsorption with the surfaces of the non-caking coal, the sub-bituminous coal and the lignite through pi-pi effect, a hydrogen bond and a hydrophobic effect, and adsorption acting force and an adsorption area are relatively large. A hydrophilic chain is introduced into the structure of the dispersing agent, so the dispersing agent can effectively improve the interface structure of coal and water, reduce the polarity interaction energy of the interface, enhance the electrostatic repulsion and steric hindrance among coal particles and inhibit coal aggregation and moisture adsorption, thereby improving the slurrying performance of low-rank coal.

The invention discloses flame-retardant antique color mud paint and a preparation method thereof. The flame-retardant antique color mud paint is prepared from the following raw materials in parts by weight: 45 to 60 parts of nickel tailings powder, 5 to 20 parts of granite saw mud, 13 to 27 parts of a borate flame-retardant agent, 8 to 26 parts of pigment, 6 to 14 parts of diatomite, 3 to 9 partsof bentonite, 7 to 22 parts of quicklime, 8 to 19 parts of cement and 25 to 58 parts of water. By virtue of repeated test, the invention provides the flame-retardant antique color mud paint, the existing preparation method of the antique building paint is improved, the nickel tailings with good wear resistance and high hardness are converted into treasure, the diatomite with a porous structure isadopted to absorb the environment-friendly borate flame-retardant agent, the granite saw mud and the calcium hydroxide generate chemical reaction to generate a compound with water hard gel performance, and the flame-retardant and weather-resistant environment-friendly flame-retardant antique color mud paint is prepared.

The invention provides a preparation method of coal water slurry of blended coal. The preparation method comprises the following steps: blending feed coal, petroleum coke and fly ash, and carrying outcrushing to obtain first slurry; mixing petroleum coke and fly ash with water and an additive to obtain second slurry; mixing the first slurry and the second slurry under stirring to obtain third slurry; then performing shaping and fine grinding to obtain fourth slurry; carrying out screening, wherein screened slurry is fifth slurry, and residues on a sieve are sixth slurry; returning a part of the sixth slurry for mixing with the second slurry, and returning the rest of the sixth slurry for shaping and fine grinding; and outputting the fifth slurry to obtain the coal water slurry. Accordingto the method, a coal blending technology is adopted, petroleum coke and coal ash are added on the basis of feed coal to form blended coal, the blended coal improves the slurry forming performance ofcoal types and the concentration of coal water slurry; the stacking efficiency of the coal water slurry can be improved through cooperation of the particle sizes of blended coal components; and therefore, the heat value of the coal water slurry is increased, and the coal water slurry can be better used as gasified coal water slurry.

The invention discloses high-strength mica paper. Relative to 100 by weight parts of water, the high-strength mica paper is prepared from, by weight, 200-300 parts of mica sheets, 30-35 parts of polyvinyl resin, 10-25 parts of asbestos, 5-10 parts of polyacrylamide and 4-10 parts of edetic acid, the materials are pulped and subjected to papermaking, and the high-strength mica paper is prepared. The high-strength mica paper has the quite-high mechanical strength, and the defect that the mica paper is poor in mechanical strength in the application process is overcome.

The invention provides a high-water-resistance carbonized and consolidated fiber cement board and a preparation method thereof, and belongs to the field of building materials. Mixing fibers, a gelling component and water to obtain slurry; the fibers are glass fibers and wood fibers or polyvinyl alcohol fibers and wood fibers; the gelling component comprises one or more of calcium silicate mineral powder, steel slag powder rich in calcium silicate mineral phase and magnesium slag powder rich in calcium silicate mineral phase; the slurry is sequentially subjected to dehydration, mud jacking and static curing, curing is conducted in the CO2 atmosphere, and the high-water-resistance carbonization consolidation fiber cement board is obtained. The glass fibers are doped to replace plant wood fibers, and hydrophobic groups on the surfaces of the glass fibers can effectively reduce the water absorption rate of the fiber cement board; the gelling component used in the invention has excellent CO2 reaction activity, can be subjected to mineralization reaction with CO2 to form a matrix structure composed of calcium carbonate, and is a main strength source of the fiber cement board.

The invention discloses a resin composite mica paper. A preparation method of the resin composite mica paper comprises preparation of a mica layer, preparation of a resin layer and compounding of the mica layer and the resin layer. The preparation process of the resin layer comprises mixing phenolic epoxy resin, polyimide resin, ethylene glycol ether, 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, dibutyl phthalate and water, carrying out heat treatment, and carrying out extrusion molding to obtain the resin layer. The compounding process of the mica layer and the resin layer comprises placing the mica paper on the resin layer, carrying out hot-pressing compounding, and then carrying out natural cooling so that the resin composite mica paper is obtained. The resin composite mica paper has insulativity and high temperature resistance of the mica paper and has high mechanical strength and toughness.