31 results about "Pelletizing" patented technology

A process for preparing the active embryonic peptide with coproduct of corn oil from the embryo bud of corn at the same time includes such steps as wet and thermal pretreating, grinding by colloid mill, multi-stage zymolysis, centrifugal separation to obtain fibres, corn oil and milk, concentrating the milk by nanometre filtering membrane, further concentrating, homogenizing, emulsifying, drying and granulating.

The invention discloses an annular coating granule chemical fertilizer pelletizing tower which comprises a collection conveying device, a screening device, an atomization spraying disc as well as a collection cone, wherein the screening device is arranged at a front conveying end or a rear conveying end of the collection conveying device; returned material granules are dropped down from the upperend of the collection cone and fall down along the circumferential side of an annular inverted cone in an annular curtain manner; the lower part of the annular inverted cone is directly facing the atomization spraying disc; the collection cone, the annular inverted cone and the atomization spraying disc are coaxially arranged; and the circumferential diameter of the atomization spraying disc is smaller than the diameter of the annular curtain. As a rectangular ejection hole is formed in the atomization spraying disc, and the atomization spraying disc can be rotated at a high speed, blocking isnot easily caused; due to annular spraying ejected from the atomization spraying disc, together with the returned material granules which fall down along the circumferential side of the annular inverted cone in the annular curtain manner, the sizes of the granules can be continuously increased till granule sizes meet requirements and a finished product processing process is implemented, and granules which do not meet sizes are repeatedly circulated in the pelletizing tower till sizes of finished product granules are met.

The invention discloses a positive electrode of a lithium-thionyl chloride energy type battery, a preparation method thereof and the lithium-thionyl chloride energy type battery. The carbon positive electrode is composed of acetylene black, a polytetrafluoroethylene emulsion, a novel carbon material and a solvent, the mass ratio of the acetylene black to the polytetrafluoroethylene emulsion to thenovel carbon material to the solvent is 10: (1.8 to 2.1) ): (0.8-1.0): (45.5-48), and the carbon positive electrode is prepared by uniformly mixing the acetylene black, the polytetrafluoroethylene emulsion, the novel carbon material and the solvent through a low-speed and three-dimensional mixer by means of granulation and drying. The carbon positive electrode of the lithium-thionyl chloride energy type battery has improved liquid absorption capacity and liquid retention capacity, effectively solves the problem of capacity difference caused by the difference of electrolyte flow when the battery is arranged transversely and inverted, and improves the environmental adaptability of the battery.

The invention relates to a preparation method of special coating resin composition for polyethylene. The preparation method comprises the following steps of: adding a peroxide crosslinking agent accounting for 0.001-0.5% of low-density polyethylene into the low-density polyethylene, and mixing and granulating to prepare the coating resin for the polyethylene, wherein the peroxide crosslinking agent consists of alkyl peroxide, lipid peroxide, diacyl peroxide and hydroperoxide, each of which accounts for 55-85%/5-15%/5-15%/5-15% according to the percentage by weight; the extrusion temperature of an extrusion machine is 150-250 DEG C, and the rotating speed of a screw is 20-60r/min; and the MFR (Melt Flow Rate) of the low-density polyethylene is 5.0-10.0g/10min, and the density is 0.915-0.925g/cm<3>. The special coating resin composition has the characteristics of high strength, good toughness, strong adhesive force and uniform filing forming and the like and is mainly used for surface coating, paper-plastic lamination, a bonding layer and film lamination of plastic woven bags.

The invention discloses a method for preparing green glaze ceramic cup artworks. The method comprises the following steps: 1) uniformly mixing 20-22 parts of potassium dichromate, 5-7 parts of calciumoxide, 8-10 parts of calcium carbonate, 20-30 parts of nano silicon oxide and 4-6 parts of medical stone, finely grinding, adding 2-4 parts of a polypropylene resin and 1-2 parts of calcium fluoride,calcining in a kiln furnace at 1300-1350 DEG C, crushing after calcining, bleaching till yellow water, further processing and finely grinding, performing extrusion pelletizing in vacuum by using an extruder at 180-200 DEG C, completing pelletizing, and finely grinding so as to obtain a toner; 2) weighing 18-20% of the toner obtained in the step 1), and 80-82% of lime glaze, uniformly mixing the toner with the lime glaze, diluting, and screening till 300 meshes so as to obtain a glaze material; 3) glazing a ceramic cup artwork after biscuiting, and calcining at 1380-1450 DEG C in the kiln furnace, so as to obtain the green glaze ceramic cup artwork. The made artwork is bright in color, uniform in glare and beneficial to human health.

The invention provides an air blowing and cooling system for hot cutting pelleting, comprising a blower, a vortex separator, an air blowing pipe, a first crushing device and a first vibration sieve, wherein the air blowing pipe is used for connecting the blower and the vortex separator; and the first crushing device is connected with the vortex separator, and the first vibration sieve is connected with the first crushing device. The first vibration sieve comprises a vibrating device, a sieving net and a fan, wherein the vibrating device is arranged on a fixed frame; the sieving net is arranged on the vibrating device; and the fan is fixed on a fan frame, and the fan is aligned to the sieving net. The first crushing device comprises a driving device, a machine shell and a crushing rotating shaft, wherein the driving device is fixed on the frame; the machine shell is provided with a material inlet and a material outlet; and the crushing rotating shaft is arranged in the machine shell; the crushing rotating shaft is connected with the driving device through a transmission mechanism; and the crushing rotating shaft is provided with a plurality of crushing bars or crushing plates. The air blowing and cooling system for hot cutting pelleting in the invention is low in fault rate, excellent in material dispersing and cooling effects, low in working noise and little in pollution to the material.

The invention discloses a preparation method of granulated graphite for a refractory castable material. The preparation method comprises the following steps: firstly, coating the surface of flake graphite with a ZrO2 coating; then compounding the flake graphite with a refractory raw material, silicon carbide ceramic powder and an antioxidant; granulating by adopting a cold isostatic pressing technology to obtain the granulated graphite. According to the preparation method disclosed by the invention, the surface of the flake graphite is coated with Zr(OH)4 gel firstly, so that the water wettingperformance and the anti-oxidization performance of the modified graphite are remarkably improved; meanwhile, the Zr(OH)4 gel can have the effect of a bonding agent in a granulation process so that the dosage of a phenol formaldehyde resin bonding agent is reduced, even the phenol formaldehyde resin bonding agent is not added; after the Zr(OH)4 gel is roasted, efficient combination between the refractory raw material and filling including the graphite and the like can be realized; a cold isostatic pressing granulation technology is adopted so that the stress on a prepared blank is uniform; particle pellets uniformly cover the flake graphite so that the flake graphite does not float freely; defects that a molded layer is cracked and the density of a product is low and the like, caused by graphite segregation, are effectively avoided, and the aim of introducing the graphite into the castable material is effectively realized.

The invention discloses a scratch-resistant polypropylene material and a preparation method thereof, and relates to the technical field of high polymer materials. The polypropylene composite materialcomprises the following components in parts by weight: 60-75 parts of polypropylene, 20-35 parts of modified chitosan fibers, 10-15 parts of an ore filler, 1-2 parts of a silane coupling agent, 0.5-1part of a lubricant and 3-5 parts of a compatilizer, and the ore filler is formed by mixing diatomite, quartz and calcium carbonate in a weight ratio of 3: 3: 2; the preparation method comprises the following steps: weighing the materials according to the specification, uniformly mixing, adding the obtained mixture into a screw extruder, carrying out melt extrusion, cooling with cooling water after extrusion, and carrying out shearing granulation to obtain the scratch-resistant polypropylene material. The polypropylene prepared in the invention has good scratch resistance.

The invention relates to a method for processing healthy and efficient bait. The method comprises the steps of (1) taking a raw material according to a specified weight, feeding the raw material intoa mixer and adding water for stirring treatment, and heating after the stirring is completed to obtain a mixture to be used, (2) taking the mixture and putting the mixture on a tray, placing the mixture into a baking oven and baking the mixture at the high temperature of 120 DEG C until the moisture in the mixture is dried to form a large block, (3) evenly brushing a surface with sesame oil and putting the large block into a baking oven at the temperature of 110 DEG C to dry moisture, and (4) cooling the mixture to a normal temperature and sending the mixture into a freezer, and (5) putting the frozen mixture into an electric furnace for heating to wait for the melting of the mixture, wherein the melted mixture is extruded and granulated in a twin-screw extruder to produce the bait, and the bait is packaged in a PVC bag. The bait produced by the processing method of the invention has the advantages of low cost, good fish attracting effect, high fishing rate, healthfulness and is not harmful to fish.

The invention discloses special graphene heat-resisting master batch for a hot water plastic pipe and a preparation method. The preparation method comprises the following steps: a, dissolving tetraethyl orthosilicate into de-ionized water and adjusting the pH (Potential of Hydrogen) value to prepare a tetraethyl orthosilicate solution; b, immersing a graphene-loaded porous calcium phosphate microsphere into the tetraethyl orthosilicate solution; raising the temperature, stirring and reacting; then washing and drying; grinding into powder to obtain silica gel coated porous calcium phosphate composite powder; and c, after impregnating the composite powder with an organic solvent, mixing with a polymer and a dispersant and extruding and granulating to prepare the graphene heat-resisting master batch. The method disclosed by the invention has the following beneficial effects that the problem that graphene is easy to agglomerate is effectively solved through the preparation method, uniformdispersion of the graphene in a plastic matrix can be ensured and the uniformity of a plastic product is improved; the obtained plastic product has excellent heat-resisting performance and mechanicalproperties; and a preparation process is simple and low in cost and can be popularized and applied.

The invention relates to a novel adjusting device for fused mass mixing degree, in particular to a door type fused mass adjusting device of a continuous mixing extruding granulating set. The adjusting device mainly consists of a lower door body and an upper door body; the upper door body and the lower door body are respectively connected with an opening-closing drive device; the drive device drives the upper door body and the lower door body to simultaneously move to the same direction or move oppositely. The device of the invention is matched to be used with the continuous mixing extruding granulating set and can be mounted between two sections of machine cylinders vertically or in a certain angle. The control on the opening and closing as well as the opening and closing degrees of the door bodies is obtained by utilizing the principle that the upper and the lower bodies which are symmetrically arranged are simultaneously moved to the same direction or oppositely to change the passing-through area of the materials; thereby changing the mixing degree of a mixing system. The device of the invention has the advantages that the mechanical structure is simple and compact, the processing and manufacture costs are low, the installation and the maintenance are convenient as well as adjustment and detection are convenient; cooled water is accessed into the door bodies to carry out cooling on the fused mass, thus realizing self seal of the fused mass; the seal is reliable and impurities are reduced.

A continuous solid-liquid mixing and granulating apparatus is composed of tower-type main body with hollow mainshaft, motor, speed regulator, granulating head with spray hols, and built-in scavenger. The mixture of molten material and microparticles is sprayed out from said granulating head and then solidified.

The invention relates to a preparation method of a silicon dioxide microsphere/polyformaldehyde composite material. The invention aims to solve the problems of low notch impact strength, shock strength and bending strength in the polyformaldehyde material. The preparation method comprises the following steps: 1. synthesizing monodisperse silicon dioxide spheres; 2. drying polyformaldehyde in a drying oven at 80 DEG C for 4 hours, adding the silicon dioxide microspheres and assistants, evenly mixing with a low-speed mixing machine, and extruding and granulating with a double screw extruder to obtain the silicon dioxide microsphere/polyformaldehyde composite material, thereby completing the preparation of the silicon dioxide microsphere/polyformaldehyde composite material. The invention is applied to the field of preparation of polyformaldehyde composite materials.

The invention discloses a waste PET composite material. A silane coupling agent can be mixed with waste PET and a polyolefin elastomer after being mixed and dried with waste resin powder with a mass ratio of 1-10 : 100, so that a mixture can be obtained, wherein the mass ratio of the waste PET to the waste resin powder is 5-9 : 1-5, and the addition amount of the polyolefin elastomer accounts for1-20% of the mass of the mixture; and extrusion granulation of the mixture can be realized through a twin-screw extruder. Through a modification technology to develop the composite material, the comprehensive utilization of the waste PET and waste resin can be realized, and the disadvantage of poor PET impact property can be overcome.

The invention discloses a method for making a potassium chloride sustained release tablet controlled by a framework and a thin film. The method comprises the steps of pulverizing, granulating, drying,pelletizing, mixing, tabletting, preparation of an anti-sticking and controlled release liquid, preheating and liquid spraying, drying, preparation of single syrup, preparation of mixed pulp, coating, polishing and packaging. The invention further discloses a specific formula of the potassium chloride sustained release tablet. According to the formula, an ammonio methacrylate copolymer emulsion and magnesium stearate are prepared into the sustained release framework, the ammonio methacrylate copolymer controlled release liquid is prepared into the sustained release thin film, and the releasespeed of potassium chloride is jointly controlled through the cooperation of the framework and the thin film. The average release amount after 8 hours is 98%, and the release curve is stable; the safety is high.

The invention provides a metal texture, scratch-resistant PC/ABS composite material and a preparation method thereof, which comprises 45-65 parts of PC resin, 35-55 parts of ABS resin, 5-10 parts of ASA, and 5-10 parts of compatibilizer , 10-15 parts of metallic pigments, 0.1-0.5 parts of antioxidant, 0.1-0.5 parts of lubricant, after adding into a mixer and mixing uniformly, adding in a twin-screw extruder; Metal texture, scratch-resistant PC/ABS composite material. The metallic texture and scratch-resistant PC/ABS composite material of the present invention is suitable for use in the fields of home appliances, automobiles, and electronic appliances, and plastic parts that require metal texture and no spraying for materials.

The invention discloses a method for controlling discoloration of nylon. The method comprises the following steps: firstly, uniformly stirring magnesium oxide and nylon; secondly, adding organic silicone oil, with the mass being 0.01+/-0.001 percent of that of nylon, into a material formed in the first step, and uniformly stirring; thirdly, uniformly stirring titanium dioxide of a material formedin the second step with toner being added; fourthly, performing extrusion granulation through a double-screw extruder. The method is simple to operate, adding is performed directly during normal production and granulation, and excessive operation processes are not required to be additionally added; the use effect is good, discoloration of nylon color blended products is effectively prevented, andthe weather resistance and the temperature resistance of nylon products are improved; the price is low, raw materials are easy to get, the price is low, and the method is simple and convenient compared to the manufacture of novel coloring agent aiming at characteristics of nylon; the negative effect on the mechanical properties of nylon cannot be caused.

The invention discloses a two-step sintering preparation method of doped bismuth ferrite-barium titanate-based leadless piezoelectric ceramic, and belongs to the field of leadless piezoelectric ceramic materials. The preparation method comprises the following steps: calculating and weighing according to a chemical formula (1-x) Bi < 1-y > M < y > Fe < 1-z > N < z > O < 3-x > BaTiO3, ball-milling and mixing, drying, sieving, putting into an aluminum oxide crucible, and pre-sintering at 780-950 DEG C for 2-12 hours to obtain pre-sintered powder; performing secondary ball milling, drying at 70-120 DEG C, sieving dried powder, adding 2wt% of polyvinyl alcohol, fully grinding and granulating, and putting the granulated powder into a mold for compression molding; and putting the ceramic blank into a muffle furnace, heating to 300-440 DEG C, discharging glue for 1-2 hours, heating to 950-1050 DEG C, preserving heat for 1-2 minutes, cooling to 900-1000 DEG C, sintering for 6-10 hours, and cooling to room temperature along with the furnace to prepare the required ceramic. According to the two-step sintering method, by ingeniously controlling the two-step sintering temperature and the heat preservation time, the generation temperature interval of an impure phase in the bismuth ferrite-barium titanate-based ceramic can be avoided, and the prepared ceramic is good in crystallinity, uniform in component, small in crystal grain, low in dielectric loss and excellent in insulativity and piezoelectric property.

The present invention disclosed a high -performance soft magnetic non -crystal coating and its preparation method, which is the field of coating preparation technology.Eight elements such as CR, the preparation steps include: ingredients, according to the component weight percentage percentage of the components of the coating; shake the belt, use the vacuum dumping machine to make the above raw materials into thin bands; heat treatment, the thin belt is in the vacuum furnace in the vacuum furnaceMerdered annealing; after the mechanical crushed, the thin band was grinded into powder and granularity treatment; the substrate materials were removed in orderOn the surface of the matrix, the coating is required. The coating has an amorphous structure. The amorphous structure is well retained with the disorderly state of the material at high temperature. Therefore, the coating has high saturated magnetization strength and resistivity.

The invention discloses a preparation method of biodegradable cast film paper, which comprises the steps of weighing the following raw materials in parts by weight: 60 to 70 parts of poly (butylene terephthalate)-adipate, 30 to 40 parts of polylactic acid, 10 to 15 parts of polyethylene glycol, 2 to 4 parts of citrate, 5 to 8 parts of nanofibers, 2 to 4 parts of silicon dioxide and 2 to 4 parts of a silicone slipping agent, wherein the molecular weight of the silicone slipping agent is 0.9-1.1 million. The manufacturing method comprises the steps of mixing the raw materials, carrying out mixing extrusion through a twin-screw extruder, and granulating the extruded material to prepare plastic particles; preparing the plastic particles into a film by adopting a tape casting method; and performing uniaxial stretching on the film, and performing stretching and shaping to obtain a finished product. By adopting the manufacturing method of the biodegradable cast film paper, the problem that a cast film cannot be degraded is solved, meanwhile, the water vapor permeability is relatively good, the cost is reduced, and the preparation method is simple.

The invention relates to a polypropylene grass and cold prevention fabric, a preparation method thereof and an application of the fabric. The method includes the steps: mixing mica and urea, adding deionized water to ultrasonically disperse mixture, adding sodium stannate and zinc sulfate water solution, and filtering, drying and calcining mixture to obtain a zinc sulfide-mica-based flame retardant; mixing the polypropylene, nucleating agents, antioxidants, dispersing agents and the zinc sulfide-mica-based flame retardant, extruding and granulating mixture, heating the mixture to reach the temperature of 130-180 DEG C, and extruding, cooling and drawing the mixture by a spinneret plate to obtain primary spun fibers; heating the primary spun fibers, drawing the heated primary spun fibers tobe aggregated into a net, bonding the net to form the fabric to obtain the polypropylene grass and cold prevention fabric. The polypropylene grass and cold prevention fabric has various physiologicaland ecological effects of breathability, increasing temperature, preserving soil moisture, avoiding tillage, increasing fertility, preventing and decreasing pests and diseases and the like and has the advantages that water is saved, electricity, labor and fertilize consumption is reduced, the control cost of the pests and diseases is reduced and the like.