133 results about "Mica" patented technology

The invention discloses a multilevel rock mass mechanical analysis method and system based on near field dynamics, and the method comprises the steps: generating a mica-matrix binary model matched with actual granite based on a K-L random field, mapping the model to a BB-PD model mass point through a DIP method, determining the distribution, the particle size and the content of mica, and determining the particle size of the mica; the mechanical weakening effect is simulated by reducing the normal and tangential stiffness of the mica phase, and the microstructure characterization of the rock is completed. Constructing a structural plane PD numerical model by combining the geometrical characteristics of the structural plane reconnaissance on site and the mechanical parameters of the indoor direct shear test, and analyzing the influence of the geometrical and mechanical characteristics of weak planes such as joints and fractures on the local mechanical properties of the rock mass; the method comprises the following steps of: constructing an engineering scale rock mass numerical model integrated with mechanical properties of a microscopic rock block and a microscopic structural surface by relying on field rock mass discontinuous surface distribution data and indoor test basic mechanical parameters, and finishing analysis on the influence of the overall mechanical properties of the engineering scale rock mass; and the problems of insufficient cross-scale collaboration and the like are solved.

The invention provides flaky mineral separation equipment and a separation method thereof. The flaky mineral separation equipment comprises a transmission belt inclining downwards, the upper surface of the transmission belt is in upward transmission, the surface of the transmission belt is a smooth surface, and the transmission belt is a polyurethane transmission belt. Separation of flaky minerals and granular minerals, such as separation of mica sheets and quartz particles, is realized by adopting a dry method, the method is suitable for mineral separation in arid regions, the mineral separation cost is reduced, and the problems of blockage and the like are avoided.

The invention relates to a talcum powder filled polypropylene composite material based on surface modification and process cooperation and an injection molding pocking mark defect inhibition method. The material is composed of co-polypropylene, acidic salt-titanate composite modified talcum powder, flaky mica (5-10 [mu] m), a POE flexibilizer, a zeolite molecular sieve, an MAH-g-PP compatilizer, a zinc stearate dispersant and the like. According to the invention, the three measures of surface modification treatment, formula design and process purification technology are combined, and the problem of pitting defects (surface pits and white spots) generated in the injection molding process of the talcum powder filled polypropylene composite material is mainly solved. Through filler surface modification treatment, formula design and a process purification technology, the hard spot defect rate is reduced by about 85%, and the method is suitable for products with high surface quality requirements, such as automobile bumpers and instrument panels.

The invention belongs to the technical field of talc, and provides a method for detecting fluorescent substances in talc raw ore, which comprises the following steps: S1, carrying out ball milling on the talc raw ore in a ball mill, sieving to obtain sieved powder, and adding deionized water into the sieved powder to obtain slurry; s2, adding the slurry into the mixture to enable the pH value of the slurry to be 5, stirring, and standing in a water bath for 2-3 hours to obtain a first precipitate; s3, adding a thiourea-ascorbic acid solution into the first precipitate to obtain a second precipitate; and S4, carrying out secondary ball milling on the second precipitate, and spreading the second precipitate in an enamel plate to detect whether the talc raw ore contains the fluorescent substances or not. The hydrochloric acid can dissolve quartz and mica to avoid generation of background fluorescence or quenching effect, and the nonionic surfactant polyethylene glycol can be adsorbed on the surface of the mineral to reduce interfacial tension, so that the hydrochloric acid is easier to infiltrate tiny pores, the pit defect caused by local over-corrosion is reduced, the pickling uniformity is improved, and the detection sensitivity is improved.

The application relates to the technical field of insulating materials, and particularly discloses a mica material composition, a mica tube and a preparation method and application thereof. The mica material composition provided by the application comprises the following components in parts by weight: 75-85 parts of mica powder, 35-55 parts of polyethylene, 45-55 parts of silicon powder and 25-35 parts of organic silica gel; the application also provides a mica tube prepared by using the mica material composition, and a preparation method of the mica tube, which comprises the following steps: extruding the mica material composition at an extrusion temperature of 170-190 DEG C, and then air-cooling at 20-30 DEG C for greater than or equal to 20 min to obtain a mica tube preform; and through drying, the mica tube is obtained. The mica tube is prepared by extruding the mica material composition, the mica tube is seamless, the mica tube has good insulation at room temperature and good high-temperature fire resistance, and can meet the use requirements of an electric shock rod or a waterproof sleeve tube insulating layer.

The application discloses a kind of high-iron infrastructure special artificial crystal mica large sheet preparation equipment, it is characterized in that, it includes pedestal body, melt furnace being installed above pedestal body, heating body and graphite mould being installed at melt furnace central axis, the top of the melt furnace is provided with feed inlet;The base and the bottom of the melt furnace are filled with filler, the bottom of the graphite mould is buried in the filler, and the upper part of the graphite mould is above the filler;The graphite mould is connected by upper body and lower body and is composed, and the upper body and the lower body are communicated by connecting hole. The equipment can prepare 10-60cm 2 size mica large sheet.

The application relates to the technical field of fire-resistant cables, and particularly discloses a high-flame-retardant high-fire-resistant cable which is composed of a conductor, an insulation layer formed of magnesium oxide particles and an outer sheath, a spiral cavity is arranged between the conductor and the outer sheath, the spiral cavity is formed of at least one spiral-wound insulation belt, the magnesium oxide particles are filled in the spiral cavity and compacted, the insulation belt is a high-temperature-resistant flexible mica belt, the mica belt is composed of synthetic mica paper or phlogopite paper and alkali-free glass fiber cloth, the spiral cavity formed by the spiral-wound composite mica belt limits the displacement of the magnesium oxide particles, the inclined winding of the insulation belt constructs a support system which is stable in structure and uniform in pressure distribution, the anti-deformation capacity of the insulation layer under dynamic mechanical stress is greatly improved, the integrity of the insulation medium is effectively ensured, and the technical problem that the magnesium oxide layer in a traditional mineral-insulated cable is easy to loosen is effectively solved.

The application discloses a kind of jade color seepage luxury stone effect ceramic rock plate and preparation method thereof, the ceramic rock plate includes body, transparent face glaze layer, jade texture pattern layer, composite dry particle layer, first protective glaze layer, transparent dry particle layer and second protective glaze layer in turn from bottom to top;The raw material components of preparation composite dry particle layer include seepage color dry particle and transmittance dry particle, and the raw material components of seepage color dry particle include by weight 65-69 parts of zircon, 5-7 parts of lithium mica, 10-15 parts of opal, 3-5 parts of kyanite and 1-5 parts of calcium-aluminium garnet;The raw material components of transmittance dry particle include by weight 20-25 parts of sodium feldspar, 25-30 parts of quartz, 14-16 parts of calcite, 8-12 parts of wollastonite and 13.5-15.5 parts of zinc oxide.The ceramic rock plate can truly restore the randomness, level and multicolor interweaving effect of jade color seepage, improve the warm and moist texture and natural luster of product surface, realize the luxury stone effect of jade color seepage.

This invention discloses a composite transparent film and its preparation method, relating to the technical field of polymer materials. The preparation method of the composite transparent film includes the following steps: (1) melting and blending vermiculite and fluororubber to obtain fluorinated vermiculite; then mixing the fluorinated vermiculite and mica evenly to obtain composite clay; (2) mixing polyvinyl alcohol solution, composite clay, and SESC lignin evenly to obtain a precursor solution, wherein the mass ratio of polyvinyl alcohol, composite clay, and SESC lignin is 45:45:(8-12); then spreading and drying the precursor solution on a substrate by casting, followed by heat treatment to obtain the composite transparent film. The composite transparent film of this invention possesses excellent water vapor barrier properties, ultraviolet absorption capacity, good transparency, high mechanical strength, and weather resistance.

The application discloses a white granite type high-purity quartz purity prediction method and application thereof, and belongs to the technical field of rock purity prediction. The prediction method encodes and assigns one or more prediction parameters, such as main mica types, rock structures, rock structures, feldspar types, quartz types, solid inclusions, liquid inclusions, solid inclusion quantity, aluminum impurity element content grading, titanium and lithium element content grading, calcium and phosphorus element content grading, potassium and sodium element content grading and grain factor grading, and then predicts the quartz purity in the ore based on a random forest classifier prediction model or a support vector machine prediction model. The comparison between the actual measurement and the prediction result proves that the prediction method has accurate and reliable prediction results, realizes the replacement of manual detection by artificial intelligence prediction, greatly reduces the manpower and material resources, and provides an efficient and accurate prediction method for quartz purity prediction.

There is provided a photothermal material, comprising a plurality of layers of two-dimensional phyllosilicate intercalated with a liquid metal. In a particular embodiment, the phyllosilicate is mica and the liquid metal is gallium.

The invention discloses a method for recovering fine-crushed gold-loaded resin from gold ore leaching residues, and belongs to the technical field of mineral processing. The invention provides an efficient recovery method aiming at the problem of resource waste caused by loss of fine-crushed gold-loaded resin along with leaching residues in the gold extraction process of a resin ore pulp method. The gold ore tailings mainly comprise silicate minerals such as quartz, feldspar and mica, the granularity is fine, and the viscosity of ore pulp is high. The method comprises the following steps: carrying out size mixing and dispersion pretreatment on the tailings containing the fine-crushed gold-loaded resin; gold-bearing resin rough concentrate is obtained through screening and grading; the rough concentrate is subjected to desliming pretreatment; the deslimed materials are subjected to dense medium separation and concentration, and efficient separation is achieved through the density difference between resin and gangue minerals; and finally, the obtained gold-bearing resin concentrate is subjected to medium drainage washing. The sorting technology adopted by the invention has the advantages of high separation precision, strong adaptability and the like, can realize efficient recovery of fine-crushed gold-loaded resin from a complex tailing system, and has remarkable economic benefits and environmental benefits.

The invention belongs to the technical field of flame-retardant materials, and particularly relates to a modified mica sheet flame retardant and a hollow glass bead lightweight flame-retardant material. The modified mica sheet flame retardant provided by the invention comprises a mica sheet and nano hydroxide loaded on the mica sheet. Hydroxides are heated and decomposed to absorb a large amount of heat, the combustion temperature is reduced, the hydroxides are decomposed to generate oxides at a higher temperature, nano hydroxides are loaded on the mica sheets, the dispersion uniformity of the mica sheets in a matrix material is improved, the compatibility of the mica sheets and the matrix material is improved, and meanwhile after the mica sheets loaded with the hydroxides expand, the flame retardance of the mica sheets is improved. And larger-volume flame-retardant layer protection can be generated, so that the capability of blocking heat transfer is greatly improved, and the flame-retardant property is further improved.

The polyamide composition is prepared from the following components in parts by weight: 70 parts of polyamide resin, 20 to 40 parts of needle-like wollastonite and mica powder and 0.5 to 3 parts of silane coupling agent, wherein the weight ratio of the needle-like wollastonite to the mica powder is (0.4-2.2): 1, the particle size of the needle-like wollastonite is 570-1600 meshes, and the particle size of the mica powder is 180-850 meshes. The needle-shaped wollastonite and the mica powder are compounded, so that the binding force at a welding part during injection molding can be effectively improved, the strength of a welding mark is further improved, and meanwhile, warping can be improved.

The invention discloses a process for directly purifying quartz sand through gravity-flotation combined separation, and belongs to the technical field of deep processing of non-metallic ores. An existing acid leaching-roasting method is large in pollution and high in cost, and impurities such as Fe, Ti and Al are difficult to remove at the same time through single reselection or flotation. The method comprises the following steps: firstly, crushing raw ore, performing rod milling, and classifying by a cyclone until d90 is equal to 0.15 mm; then combined reselection is conducted through a two-section table concentrator and a centrifugal machine, pre-enriched concentrate with SiO2 larger than or equal to 99.2% is obtained, and the heavy mineral removal rate is larger than or equal to 65%; then, under different pH conditions, lauric acid, a neutral oil emulsified collecting agent and a mixed amine collecting agent are used for collecting mica and feldspar in a segmented mode, so that the grade of SiO2 is increased to be larger than or equal to 99.9%, and Al2O3 and Fe2O3 are reduced to be larger than or equal to 85% and larger than or equal to 70% relative to gravity concentrate; finally, deionized water washing and vacuum drying are conducted, and the high-purity quartz sand is obtained. The whole process is free of hydrofluoric acid and high-temperature roasting, the recovery rate of SiO2 with the size fraction of-0.6 + 0.1 mm is increased to 93-95%, product indexes are stable, equipment is conventional, and industrial popularization is easy.

The utility model provides a mica ore shot blasting crusher, and belongs to the technical field of mica processing equipment. Comprising a mounting shaft transversely fixed to a rack, a rotary drum rotationally connected to the mounting shaft and a separation rod located in the rotary drum, the rotary drum is driven by a driving mechanism to rotate, the separation rod is fixed to the mounting shaft and attached to the inner wall of the rotary drum above the axis of the mounting shaft, and a plurality of permanent magnet strips are arranged on the outer wall face of the rotary drum at intervals; and a plurality of iron impact balls are arranged in the rotary drum. The device has the advantages of small dust pollution and the like.

The utility model relates to the field of composite mica coil material edge covering equipment, in particular to full-automatic edge covering equipment for a mica coil composite material. The utility model relates to full-automatic edge covering equipment for a mica coil composite material, which comprises a screw extruder, a mica coil unwinding roller group, a transmission roller group, a multi-section type drying oven and a winding roller group, wherein the mica coil unwinding roller group is positioned at the upstream of the screw extruder, and the transmission roller group, the multi-section type drying oven and the winding roller group are sequentially positioned at the downstream of the screw extruder; a channel for conveying a mica roll composite material is integrally formed in the edge covering die head; a plurality of extrusion runners are integrally formed in the edge covering die head, and outlets of the extrusion runners are formed in the channel outlet in a surrounding mode. The full-automatic edge covering equipment for the mica roll composite material is used for covering the edge of the mica roll composite material, secondary cutting and trimming are not needed, generation of cut plastic film waste is effectively reduced, generation of industrial waste is reduced, the resource utilization rate is increased, and the edge covering cost of the mica roll composite material is reduced.

The invention discloses a discharging structure for intelligent conveying mica powder production, and relates to the field of mica powder production. The discharging structure for mica powder production comprises a processing frame and further comprises a discharging device. Wherein a motor is fixedly mounted at the bottom of the inner wall of the treatment frame, a transmission shaft is fixedly mounted at the output end of the motor, and the transmission shaft rotationally penetrates through the inner wall and the outer wall of the treatment frame; wherein the feeding device comprises a material storage box, a fixed frame, a sliding frame, a bearing block and a rotating plate, the material storage box fixedly penetrates through the inner wall and the outer wall of the upper portion of the treatment frame, the fixed frame is fixedly installed in the material storage box, the sliding frame is installed in the fixed frame in a sliding mode, and the bearing block is fixedly installed below the sliding frame; according to the discharging structure for mica powder production, stable and continuous transportation of materials can be achieved, and the situation that excessive materials are discharged at a time, accumulation is caused, and then the screening effect is affected is avoided.

The application discloses a kind of manufacturing device and method of high temperature special cable, belong to cable technical field, to solve the problem that existing special cable high temperature resistance and impact resistance is difficult to meet simultaneously;The application is installed mineral mica layer by wire core, mineral mica layer, crosslinked insulation layer, ceramic fireproof layer and flame-retardant sheath, ensure that wire core has good high temperature resistance and fire resistance, while installing crosslinked insulation layer in the peripheral mineral mica layer, further improve the overall heat resistance, finally set up flame-retardant sheath, and flame-retardant sheath is made of low smoke halogen-free flame-retardant polyolefin, wollastonite powder and polytetrafluoroethylene powder mixture, because wollastonite powder has higher heat resistance and reinforcing effect, can improve the overall mechanical strength and high temperature resistance, polytetrafluoroethylene powder has excellent high temperature and self-lubricating performance, can reduce the overall friction coefficient under high temperature, improve its anti-aging and wear resistance.

Disclosed in the present application are a coating and a preparation method therefor and the use thereof, and a coated product. The raw material components of the coating comprise, in parts by weight, 30-105 parts of an epoxy resin, 1-100 parts of a curing agent composition and 0.3-100 parts of a flaky filler composition. The flaky filler composition comprises a flaky mica powder, glass flakes and flaky andalusite.

The invention provides a multi-scale two-dimensional mica sheet layer modified anti-aging PVC (polyvinyl chloride) profile and a preparation method of the multi-scale two-dimensional mica sheet layer modified anti-aging PVC profile. The PVC profile comprises a PVC general profile ingredient, a large-sheet-diameter mica sheet with the transverse size of 20 [mu] m-100 [mu] m and a small-sheet-diameter mica sheet with the transverse size of 1 [mu] m-10 [mu] m, wherein the large-sheet-diameter mica sheet and the small-sheet-diameter mica sheet are compounded in the PVC profile in a sheet form. The multi-scale two-dimensional mica sheet layer modified anti-aging PVC profile obtained by the application has a micro-scale multi-scale structure, wherein the anti-aging profile is endowed with an excellent anti-ultraviolet aging effect through the synergistic effect of the large-sheet-diameter mica sheets and the small-sheet-diameter mica sheets in the whole material system. The method for preparing the anti-aging PVC profile with high added value by using the natural two-dimensional mica sheet layer has the advantages of simple preparation process, short flow, high temperature resistance, good stability, excellent anti-ultraviolet aging effect and the like.

The invention belongs to the technical field of inorganic functional materials, and provides a bismuth oxychloride coated mica composite material as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing mica, a pH value regulator and water to obtain a mica suspension; mixing a bismuth source, a chlorine source and water to obtain a mixed raw material solution; mixing the mica suspension liquid with the mixed raw material liquid, and carrying out an in-situ precipitation reaction to obtain a bismuth oxychloride coated mica composite material precursor; and carrying out heat treatment on the bismuth oxychloride coated mica composite material precursor to obtain the bismuth oxychloride coated mica composite material. The method is simple and mild in condition, the prepared bismuth oxychloride coated mica composite material does not harm human health, the particle size distribution and dispersion performance of bismuth oxychloride are improved, agglomeration is not prone to occurring, and the bismuth oxychloride coated mica composite material has wide application prospects in manufacturing of high-end cosmetics.

This invention provides a method for preparing high-purity quartz using graded preferential flotation, and the high-purity quartz itself. The method includes crushing the quartz ore to obtain crushed products with a particle size of less than 50 mm, mechanically scrubbing and desliming to obtain first quartz particles; grinding and screening the first quartz particles to obtain particles of +70 mesh to -20 mesh, followed by mechanical scrubbing and desliming to obtain second quartz particles; grinding the second quartz particles with a screening sieve to obtain particles of 70 to 150 mesh, followed by magnetic separation to obtain third quartz particles; subjecting the third quartz particles to multiple graded preferential flotation stages to obtain fourth quartz particles; and acid washing the fourth quartz particles, followed by filtration, washing, and drying to obtain high-purity quartz. This invention reduces the amount of gangue minerals such as clay and mica entering subsequent beneficiation stages; it enables graded collection and separation of different gangue minerals in a weakly alkaline environment, reducing the use of strong acids or HF acids, making it more environmentally friendly; and it allows for the separate collection and utilization of gangue minerals.

The application provides a method for separating feldspar and photovoltaic glass quartz sand from lithium mica tailings, and belongs to the field of tailings separation. The method comprises the following steps: mixing lithium mica tailings with water to obtain lithium mica tailings slurry, screening and magnetic separation of the lithium mica tailings slurry to obtain magnetic separation concentrate, mixing the magnetic separation concentrate with water to obtain magnetic separation concentrate slurry, mixing the magnetic separation concentrate slurry with an alkaline collector and carrying out flotation to obtain first-stage flotation feldspar and rough separation quartz sand, mixing the rough separation quartz sand with water to obtain rough separation quartz sand slurry, mixing the rough separation quartz sand slurry with an acidic collector and carrying out flotation to obtain second-stage feldspar and quartz sand, mixing the quartz sand with water to obtain quartz sand slurry, mixing the quartz sand slurry with an acidic collector and carrying out flotation to obtain third-stage feldspar and photovoltaic glass quartz sand. The feldspar and quartz sand are effectively separated from the tailings sand by designing a production process and selecting a suitable collector, and the resource use range is greatly widened.

This invention belongs to the field of building materials technology. Specifically, it discloses a glaze for preventing ceramic tile deformation and an anti-deformation ceramic tile, comprising the following raw materials in parts by weight: 15-30 parts spodumene, 15-30 parts calcite, 12-20 parts bauxite, 8-15 parts pyrophyllite, 6-12 parts modified magnesium borate whiskers, 5-9 parts wet-process mica powder, 3-6 parts palygorskite, 1-2.5 parts calcium borate, 1-2 parts tricalcium silicate, and 0.2-0.7 parts ammonium fluoride. The system of this invention uses spodumene, calcite, bauxite, and pyrophyllite as the matrix minerals, effectively lowering the sintering temperature and providing basic strength to the system. At a lower firing temperature, a high degree of sintering of the glaze layer can be ensured, preventing sintering failure of other materials. By adding modified magnesium borate whiskers and wet-process mica powder, the flexural strength is effectively improved.

The utility model discloses a far infrared heating plate with uniform temperature, which comprises a heating chamber used for shielding the heating plate, a mica plate is horizontally arranged in the heating chamber, heating foils are fixedly adhered to the upper surface and the lower surface of the mica plate, and the heating foils are arranged in the heating chamber. Heating resistance wires are non-uniformly arranged on the surface of one side, facing the mica plate, of the heating foil; according to heat radiation in the technical scheme, the characteristic that the far infrared coating converts heat energy into radiation energy at high temperature is utilized, high temperature emitted by the heating foil is conducted out in a heat radiation mode, so that a non-contact object is heated, and the graphite plate enables the temperature to be conducted more evenly.

The invention discloses a PET base film and a PET base film plate preparation method, and relates to the technical field of plates, the PET base film comprises PET resin, oleamide, silicon dioxide, an antioxidant and a flake mica sheet, the antioxidant is formed by mixing a hindered phenol antioxidant and a phosphite ester antioxidant, and the aspect ratio of the flake mica sheet is 80-150; the PET film is adopted to replace a traditional LVT plate bottom film, the characteristic that the intermolecular structure of the PET material is tighter is fully utilized, the barrier property of the material is remarkably improved, and therefore migration and precipitation of a plasticizer are effectively inhibited.

The utility model relates to a novel heat gun heating body structure, which comprises a ceramic cylinder, a supporting mica sheet and a heating resistance wire assembly fixed on the supporting mica sheet, and is characterized in that one end of the supporting mica sheet connected with the ceramic cylinder is U-shaped, the ceramic cylinder is formed by connecting an air outlet end head and a heating seat body into a whole, and the heating resistance wire assembly is fixed on the supporting mica sheet. First connecting grooves are formed in the positions, opposite to the connecting positions of the supporting mica sheets, of the air outlet end head and the outer wall of the heating base body, four heating air channels which are through front and back are formed in the air outlet end head and the heating base body, and the heating air channels are conical; and two groups of heating resistance wire assemblies which are arranged in parallel are fixed on the supporting mica sheet. According to the utility model, a straight barrel-shaped heating air channel is changed into a conical flow channel with a large inlet and a small outlet, so that the temperature of pressure gas can be automatically increased in the flowing process, and the effect of improving the heating efficiency is achieved.

The utility model discloses a mica sheet production cleaning device, and relates to the technical field of mica sheet production equipment, in particular to the mica sheet production cleaning device which comprises an electric sliding rail, a telescopic piece, a mounting plate, a motor and a cleaning basket. The installation plate is fixedly installed at the output shaft end of the telescopic piece, the motor is fixedly installed on the installation plate, the cleaning basket is installed below the installation plate, the motor is in transmission connection with the cleaning basket, and the motor drives the cleaning basket to rotate and ascend and descend in a reciprocating mode. The motor drives the whole cleaning basket to rotate, the cleaning basket can rotate in the cleaning pool, and therefore mica sheets make full contact with water, and the cleaning effect is achieved; the motor can drive the cleaning basket to do reciprocating lifting movement while driving the cleaning basket to rotate, that is, the cleaning basket can rotate and also can do reciprocating lifting movement, so that the cleaning basket rotates and vibrates, impurities on mica sheets fall off, and the purpose of efficiently cleaning the mica sheets is achieved.

The present application relates to the technical field of foundry coating, and provides a dry powder coating for casting, which comprises, in parts by mass, 100 parts of refractory aggregate, 0.4-1.2 parts of film forming aid, 0.1-4 parts of binder, 0.01-1 part of wetting agent, 0.01-5 parts of dispersing agent, 0.01-1 part of defoaming agent, and 1-4.5 parts of suspending agent; wherein the refractory aggregate is one or more of forsterite, graphite, mica powder and talc powder; the present application has good comprehensive performance, and the 24h suspending property, coating wear resistance, high-temperature exposure crack level and shear thinning index of the coating meet the use requirements and are superior to the existing indexes; meanwhile, the present application overcomes the problems of sand sticking and coating wall sticking after use of the existing dry powder coating; the present application increases the convenience of coating transportation and reduces the coating transportation cost, and improves the storage safety of the coating without fire risk.