27results about How to "Guaranteed fineness" patented technology

The invention discloses a supercritical carbon dioxide natural circulation experimental device and experimental method under a swing condition, and belongs to the field of new working medium nuclear energy system experiments, and the supercritical carbon dioxide natural circulation experimental device comprises a swing simulation platform, a natural circulation loop arranged on the swing simulation platform and a monitoring mechanism, the natural circulation loop comprises an ascending section, a first horizontal section, a descending section and a second horizontal section which are communicated in sequence, a preheating assembly and a heating assembly which are communicated in sequence are arranged on the ascending section, the inlet end of the preheating assembly is further communicated with the vacuumizing mechanism and the carbon dioxide supply mechanism, and a cooling assembly is arranged on the first horizontal section. By adopting the supercritical carbon dioxide natural circulation experimental device and experimental method under the swinging condition, the operation characteristic research on supercritical carbon dioxide natural circulation under the unsteady state motion of the ship and the ocean condition can be carried out, so that the internal influence mechanism of the swinging condition on a natural circulation system can be researched subsequently.

The utility model discloses environment-friendly printing ink low-energy-consumption production equipment which is characterized in that an inlet end of a first solvent metering tank is connected to an adhesive supply end, and an inlet end of a first dispersing kettle and an inlet end of a second dispersing kettle are both connected with an outlet end of the first solvent metering tank; an outlet end of the first dispersion kettle is connected with an inlet end of the first sand mill, the first sand mill, the first pull cylinder, the second sand mill and the second sand mill are connected in sequence, an inlet end of the first delivery pump is connected with an outlet end of the second pull cylinder, an outlet end of the first delivery pump is connected with an inlet end of the third dispersion kettle, and an outlet end of the third dispersion kettle is connected with an outlet end of the second pull cylinder. An inlet end of the second solvent metering tank is connected to the additive feeding end, and an outlet end of the second solvent metering tank is connected with another inlet end of the third dispersing kettle. According to the environment-friendly printing ink low-energy-consumption production equipment provided by the utility model, the production continuity can be ensured, the stirring difficulty is also reduced, the printing ink is mixed more finely and uniformly, and more energy is saved.

The invention provides an extreme rainfall spatial scale identification method and system, and the method carries out the following steps for each point in a to-be-identified region: determining extreme rainfall threshold values of a designated point and adjacent points of the designated point in the current round; performing dual polarization processing on the rainfall data of the specified point and the adjacent points based on the extreme rainfall threshold values of the specified point and the adjacent points; obtaining measurement windows in different search directions; dividing each measurement window into a plurality of polygons; fitting and solving according to the average semi-variation function value of the polygon in each search direction to obtain a corresponding space correlation length; and calculating to obtain a precipitation spatial scale range of the specified point according to the spatial correlation lengths in all the search directions. According to the method, the spatial scale range of extreme rainfall can be identified more comprehensively, more scientifically and more accurately.

The present application relates to a kind of multilayer silk inlaying process for seal, it is characterized in that: the inlaying process includes the following steps: a, multilayer silk production: first production intermediate framework, then set up silk composite layer on the front and back of intermediate framework respectively;B, on the embryo of seal, the metal relief that is cooperated with multilayer silk is produced, and the layout mode between metal relief and multilayer silk is superimposed or adhered;C, using low-temperature welding, multilayer silk and metal relief are connected, and the multilayer silk inlaying process of seal is completed.In implementation, using the way of step-by-step, first complete multilayer silk and the production of metal relief on the surface of seal embryo, then the two are fixedly connected by low-temperature welding.Multilayer, fine and complex seal molding change is realized, not only realize soft, hard combination in material, more different modeling and texture are shown in detail, modeling is rich and varied, and the purity of seal can also be guaranteed.

The invention relates to the technical field of lithium batteries, and discloses inorganic compound slurry and lithium battery positive electrode slurry containing the same. The inorganic compound slurry comprises inorganic compound solid particles, a dispersing agent A and a dispersing agent B, wherein the dispersing agent A is selected from one or more of amine compounds containing ether chains; the dispersing agent B is selected from one or more of phosphoric acid compounds containing ether chains. The inorganic compound slurry contains the dispersing agent A and the dispersing agent B at the same time, the dispersing agent A and the dispersing agent B are compounded, the synergistic modification effect on the surfaces of inorganic compound solid particles is achieved, and when the inorganic compound slurry is mixed into the lithium battery positive electrode slurry, the agglomeration effect between the solid particles can be reduced; and meanwhile, the problem that the viscosity is sharply increased after the inorganic compound slurry is mixed into the positive electrode slurry is also solved.

The utility model provides a rolling machine for lime production, and relates to the technical field of lime production, the rolling machine for lime production comprises a support base, the top of the support base is provided with a rolling cylinder, the outer ring of the rolling cylinder is rotatably connected with the inner cavity of the support base through a shaft sleeve, the top of the rolling cylinder is fixedly provided with a feed hopper, and the outer ring of the rolling cylinder is rotatably connected with the inner cavity of the support base through a shaft sleeve. A cylinder is arranged at the top of the supporting base, a second belt wheel is fixedly connected to the top of the cylinder, and a long rod is arranged in an inner cavity of the leather rolling barrel. According to the utility model, lime raw materials are efficiently and uniformly ground, the grinding mode can ensure that lime particles reach a finer degree, the production requirement of refined lime is met, the lime raw materials are continuously and uniformly rolled and ground in the conical hopper, and meanwhile, the scraper effectively scrapes the lime attached to the inner wall of the conical hopper, so that the production efficiency is improved. And the grinding uniformity and fineness are further guaranteed, and the quality of ground lime is guaranteed.

The utility model relates to a bearing protection device of mechanical grading mill, including frame, two main motors are installed to both sides of frame, the output of two main motors installs grading wheel drive, grinding disc drive respectively, grinding disc drive and grading wheel drive connect hollow shaft and solid axle through V type belt respectively, solid axle is placed in hollow axle hole, grinding disc is installed on hollow axle, and is inside the cavity of grinding cavity, grading wheel is installed on solid axle, and is above grinding disc inside the cavity, the upper and lower end of hollow axle is provided with big bearing respectively, and is supported by big bearing, the upper and lower end of solid axle is provided with small bearing respectively, and is supported by small bearing, the outer ring of grinding disc is provided with toothed grinding ring, the cavity of grinding cavity is provided with air guide ring below, and air guide ring is below toothed grinding ring, compared with prior art, the utility model can improve the service life of bearing, reduce the wear and tear and failure risk of bearing, and further improve the effect of equipment grinding and grading.

This utility model relates to the technical field of coffee grinding devices, specifically to a coffee grinding device with fine-tuning function. It includes a frame with a grinding chamber inside. The grinding chamber has a feed inlet at the top and a sieving chamber at the bottom. A grinding layer is slidably disposed inside the grinding chamber. Electric push rods are symmetrically installed on the bottom wall of the grinding chamber, and the output end of each electric push rod is fixedly connected to the grinding layer. This utility model, through the electric push rods, can adjust the distance between the coffee beans and the grinding blocks by pushing the grinding layer upwards during grinding. A smaller distance ensures full contact between the coffee beans and the grinding blocks, effectively improving grinding efficiency and quality. Through the combined use of the grinding layer, filter, vibrator, and spring, the ground coffee can be sieved and repeatedly ground to ensure the fineness of the ground coffee particles meets requirements.

The invention discloses a low-foam low-glass-transition-temperature water-based adhesive and a preparation method thereof, relates to the technical field of water-based adhesives, and can solve the problems that the existing water-based adhesive is high in production cost, more in generated foam and unstable in performance, so that the stripping force is increased. According to the water-based adhesive, a proper amount of the defoaming agent is added in the preparation process, foam generation can be effectively reduced, it is guaranteed that in the application process of the adhesive, the bonding effect and the use experience of the adhesive cannot be affected due to the foam problem, and the adhesive performance of the adhesive is enhanced through the proportion design of butyl acrylate and acrylic acid. Butyl acrylate is used as a main polymeric monomer and can effectively improve the flexibility and adhesion strength of the adhesive, acrylic acid is beneficial to enhancing the crosslinking and stability of an adhesive layer and improving the durability, and due to the low foaming property, the low glass transition temperature and the good emulsification effect, the water-based adhesive can be applied to adhesion of various materials, and the water-based adhesive has the good application prospect. Such as effective adhesion to substrates.

The utility model discloses a zinc oxide grinding machine which comprises an outer machine box, an inner barrel body and a discharging barrel, the discharging barrel is installed in the center of the bottom of the outer machine box, a discharging motor is installed at one end of the discharging barrel, and the output end of the discharging motor extends into the discharging barrel and is provided with a spiral stirring paddle. Fine grinding blocks are arranged on the inner wall of the discharging barrel between blades of the spiral stirring paddle; a servo motor is installed on one side of the outer machine box, and the output end of the servo motor extends into the ball milling bin of the outer machine box and is provided with an inner cylinder. Due to the adoption of the design of the double grinding balls, the contact area and the collision frequency of a grinding medium and a zinc oxide material are obviously increased. The protrusions evenly arranged on the outer side of the first grinding ball are matched with the grooves evenly formed in the outer side of the second grinding ball, the interaction between the grinding media is further optimized, the grinding process is more efficient, the zinc oxide can be ground to the finer granularity, and therefore the production capacity is remarkably improved.

The invention discloses a filter-pressing rotary cutting device for ceramic roller kiln slurry blanks, and relates to the technical field of ceramic roller kiln slurry blank cutting, the filter-pressing rotary cutting device comprises an extruder and an auxiliary column, a screw rod is arranged in the extruder, and one end of the screw rod is provided with a driving motor through a shaft; the output end of the driving motor is provided with a first transmission assembly used for auxiliary transmission through a shaft. According to the filter-pressing rotary cutting device for the ceramic roller kiln slurry blank, the ceramic roller kiln slurry blank can be conveniently extruded and conveyed through rotation of a screw rod, meanwhile, a driving roller can move along with the screw rod in the rotation process, and the driving roller can be driven to rotate through the design of the driving roller and a first conveying belt; and therefore, the built-in shaft and the stirring rod in the discharging frame move along with each other, the ceramic roller kiln slurry blank placed in the discharging frame can be crushed and stirred uniformly, and the situation that the quality of the ceramic roller kiln slurry blank is affected due to the fact that the ceramic roller kiln slurry blank carries large particles is avoided.

The utility model belongs to the technical field of agricultural machinery, and particularly relates to an orchard planting ditching device which comprises a ditching assembly. Soil throwing openings are formed in the two ends of the ditching assembly, a screen is fixedly connected to the middle of each soil throwing opening, one end of each screen is communicated with a collecting box, a cabinet door is hinged to one end of each collecting box, and a handle is fixedly connected to the surface of each cabinet door. In the process, soil collides with a screen, the screen sieves the soil, meanwhile, overlarge soil particles are divided into small blocks, the soil enters a collecting box to be stored, subsequent backfilling is facilitated, the collecting box is arranged to collect the thrown soil in the ditching process, the situation that the soil splashes too far is reduced, and convenience is brought to fruit tree planting. Soil is backfilled, soil particles are divided and sieved through a screen, and the fine and smooth performance of the soil is guaranteed.

The utility model discloses a food waste disposal device, which belongs to the field of household appliances, solves the problem of poor cleaning effect of a crushing cavity, and adopts the technical scheme that the food waste disposal device mainly comprises a waste disposer and a cleaning device, and the waste disposer comprises the crushing cavity, a crusher and a motor for driving the crusher to work; the smashing device is arranged in the smashing cavity, the cleaning device comprises a foaming agent conveying assembly, a foaming assembly and a foam conveying assembly, the foaming agent conveying assembly is used for conveying a detergent to the foaming assembly, the foaming assembly foams the detergent to form foam, and the foam conveying assembly inputs the foam into the smashing cavity to achieve cleaning. The grinding device is mainly used for improving the cleaning effect of the grinding cavity.

The application belongs to the technical field of bamboo powder preparation, and discloses a bamboo powder production system, which comprises a primary crushing unit, a drying unit, a secondary crushing unit, a separation unit and an air induction unit. The primary crushing unit is used for crushing bamboo sections into coarse bamboo powder and conveying the coarse bamboo powder to the drying unit. The drying unit is used for drying the coarse bamboo powder. The secondary crushing unit is used for secondarily crushing the dried coarse bamboo powder into fine bamboo powder and conveying the fine bamboo powder to the separation unit. The separation unit is used for separating the fine bamboo powder and outputting the separated fine bamboo powder. The air induction unit is used for maintaining the separation unit in a negative pressure environment. The application adopts a twice-crushing mode, increases the drying unit after the primary crushing unit, and thus the drying is easier and more thorough, the drying degree of the coarse bamboo powder is ensured, and the effect of the secondary crushing is improved. The dried coarse bamboo powder is secondarily crushed by the secondary crushing unit, and the fine bamboo powder with uniform particle size is obtained, so that the fineness and uniformity of the bamboo powder are ensured.

The invention belongs to the technical field of medical instruments, and particularly relates to femoral intertrochanteric fracture incision positioning equipment which comprises a first positioning rod. A plurality of first limiting holes are formed in the first positioning rod; a plurality of fixing frames are connected to the first positioning rod in a sliding mode. Limiting plates are installed on the multiple fixing frames. The bottom, close to the first positioning rod, of the limiting plate is fixedly connected with a limiting insertion rod, and the limiting insertion rod penetrates through the fixing frame to be inserted into the first positioning rod. The fixing frame is in threaded connection with a first bolt, and the first bolt penetrates through the limiting plate. According to the femoral intertrochanteric fracture incision positioning equipment, the fineness and stability of a femoral intertrochanteric fracture operation are ingeniously improved through multiple designs, and the key technical effects of the femoral intertrochanteric fracture incision positioning equipment are that through the multiple adjustable fixing frames and limiting plates, accurate limiting of fractured limbs with different thicknesses can be achieved, the fractured limbs can be stably fixed to an operation bed, and the operation efficiency is improved. Movement and deviation of limbs are effectively reduced, and the accuracy of surgical incision positioning is ensured.

The invention provides a preparation process of an environment-friendly preservative-free mask, and relates to the technical field of mask preparation, the mask comprises the following components: green tea extract, aloe gel, lavender essential oil, sodium hyaluronate, plant glycerin and deionized water, irritation and damage of chemical additives to skin are avoided, the mask is milder and safer, and the mask has a good application prospect. The green tea extract has anti-oxidation, anti-inflammatory and whitening effects, the aloe gel can moisturize, calm and repair skin, the lavender essential oil is beneficial to soothing the skin and relaxing mood, the sodium hyaluronate has an excellent moisturizing effect, all-around care is provided for the skin under the combined action of the components, the proportion of the components is meticulously designed and adjusted, and the skin care effect is good. According to the present invention, by adding the plant glycerin and the deionized water, the consistency and the fluidity of the mask can be adjusted, the permeability of the components on the skin can be improved, and the nutritional components in the mask can be rapidly and deeply absorbed by the skin.

The application discloses a digital human modeling method, comprising the following steps: S1, three-dimensional reconstruction data about each frame of image is extracted from monocular video, the three-dimensional reconstruction data comprises original data, high-precision human mask, original audio signal, optimized SMPL parameters and camera parameters corresponding to each frame of image; S2, a three-dimensional structure human body grid in a "T" posture is generated based on the optimized SMPL parameters, after being discretized into a 3D Gaussian point set, the initialization of the 3D Gaussian point set is completed in combination with the original data, the high-precision human mask and the camera parameters corresponding to each frame of image; S3, a facial animation sequence capable of representing mouth shape and emotional dynamics is obtained based on the original audio signal, a text description of an expected facial morphology and a reference image; S4, a Gaussian physical model is added in a 3DGS process to render the initialized 3D Gaussian point set, and the 3DGS rendering result is mixed and rendered with the facial animation sequence to generate a digital human model with facial expressions.

The utility model provides a fine surface mould of fad, belongs to fad production technical field. Fine surface mould of fad, including upper die plate and lower die plate, upper die plate and lower die plate, the adjacent side of upper die plate and lower die plate is pasted together, the inside of upper die plate and lower die plate all movably sleeve joint has four groups of limit guide column, and the top of four groups limit guide column movably sleeve joint in the inside of upper die plate is connected with top plate fixedly. The utility model has, through inlaying silica gel mould in metal mould, and adopts a plurality of groups of limit bolt to carry out stable sleeve joint from four sides, makes silica gel mould and lower die plate closely, effectively reduces the joint, guarantees fad detail degree, when replacing, through the air cylinder drive linkage mechanism, can make limit bolt and mould to remove sleeve joint fast, easily completes silica gel mould replacement, both ensures production detail, and can replace fast when silica gel mould is damaged, reduces the loss of production interruption.

The invention relates to the technical field of tooth punching machines and discloses a tooth punching machine which comprises a machine tool, a feeding machine is installed on the right side of the top end of the machine tool, a spinning machine is installed on the rear side of the middle of the top end of the machine tool in a threaded mode, and a tailstock sharp rod is installed on the left side of the top end of the machine tool. And the combined clamp assembly is mounted in the middle of the top end of the machine tool. According to the tooth beating machine, the vibrating body is started to drive the second clamping frame to vertically impact and collide with the first clamping frame, and the bottom of the bottom sleeve body can be reversely impacted by utilizing elastic telescopic collision of the straight rod piece at the bottom of the bottom sleeve body, so that the impact force is transmitted to the fine clamping assembly of the large spherical hinge body; according to the device, chippings attached to a fine clamping assembly, a tooth strand material and a large spherical hinge body can be vibrated to fall onto a machine tool, automatic vibration falling and cleaning of the chippings on the surface of a composite clamping piece assembly are achieved, and the situation that the chippings are accumulated on the composite clamping piece assembly, and consequently finish machining of follow-up special-shaped tooth pieces is affected is avoided.

The utility model discloses a low energy consumption raw material pre -drying calcium carbide mixing equipment, including bottom plate, and install the device body in bottom plate top, and the bottom of device body is fixed with the support leg in symmetry, and the top of device body is equipped with the feeding opening, the top of device body is equipped with the crushing subassembly, and the crushing subassembly includes the connecting plate, and the front surface fixed connection of connecting plate has the connecting piece, and the top of connecting piece is installed with servo motor, wherein, the bottom of connecting piece is rotated with the rotation lever in symmetry. This low energy consumption raw material pre -drying calcium carbide mixing equipment, when the calcium carbide raw material is dried, can crush the calcium carbide raw material, so that when the calcium carbide raw material is dried, can avoid the calcium carbide raw material too big and lead to the drying long increase, thereby will extra consume energy consumption, can also screen the calcium carbide raw material when crushing to the calcium carbide raw material, thereby can guarantee the fineness of calcium carbide raw material.

The utility model relates to the technical field of coal mine filling, in particular to a self-adaptive paste filling device for a coal mine working face. According to the technical scheme, the device comprises a bottom table, a shell and a net cylinder, the shell is arranged on the upper portion of the bottom table, the net cylinder is fixed to the upper end of the interior of the shell, a crushing wheel is rotationally installed in the net cylinder, feeding ports are formed in the corresponding positions of the shell and the net cylinder, and a discharging port is formed in the bottom end of the shell. According to the utility model, the fineness of the gangue is effectively ensured through the matching of the structures, and the size fraction difference of the gangue of the raw material is reduced, so that the flowing property and the strength property of the paste filling material are ensured, and the mass concentration variation amplitude of the filling slurry is reduced.

The application provides a kind of anti-freezing high-performance concrete for building 3D printing and a preparation method thereof, the concrete contains cement 80-100 parts by mass, fly ash 80-100 parts, slag powder 220-270 parts, silica fume 15-30 parts, fine aggregate 1200-1500 parts, and polycarboxylic acid high-performance water reducing agent, thickening agent, polypropylene fiber and / or modified cellulose ether, water-binder ratio 0.55~0.67, fine aggregate is natural sand, granite waste sand or mixture thereof, replacement rate 0%~100%. During preparation, accurate measurement, dry mixing, solution preparation, wet mixing fluidization, high-speed slurry, printing forming and moisture curing are carried out. The application adopts microstructure self-optimization active anti-freezing design, without coarse aggregate, which greatly reduces carbon emission, the anti-freezing grade of concrete reaches F125-F150, with excellent printability and mechanical properties, without printing head blockage problem, the preparation process is controllable, and is suitable for building 3D printing engineering in cold and seasonal freeze-thaw areas.

The invention discloses a target segmentation and tracking method, a material generation method and a naked eye 3D scene card material, and relates to the technical field of information. The method comprises the following steps: acquiring a to-be-processed video frame sequence and a forward point added by an operator on a starting frame image of the video frame sequence for a target object; based on the forward point and a preset image segmentation model, performing target segmentation on the initial frame image to obtain a segmentation result of the target object; and according to the segmentation result and a preset target tracking model, performing continuous target tracking and segmentation on each video frame image in the video frame sequence to obtain a tracking result of the target object. The problems of high initial frame labeling cost and low segmentation precision of a VOS algorithm can be solved, meanwhile, the production efficiency of naked eye 3D scene card materials can be improved, and manpower resources and time cost are saved.

The utility model discloses a stirring device for producing candies. The stirring device comprises a stirring barrel, the stirring shaft is rotationally arranged in the stirring barrel, a driving part is arranged at the bottom of the stirring shaft, the stirring shaft comprises an upper hollow pipe and a lower hollow pipe, the upper hollow pipe is fixedly connected with the lower hollow pipe, a water distribution disc is connected to the outer side of the upper hollow pipe and used for uniformly adding liquid, a liquid circulating spray head is mounted on the outer side of the lower hollow pipe, and the water distribution disc is used for uniformly adding liquid. The stirring device disclosed by the utility model has the beneficial effects that the stirring shaft consists of the upper hollow pipe and the lower hollow pipe, so that liquid is allowed to be transmitted through the interior of the shaft, an additive is effectively and directly dispersed into the stirring barrel, and the mixing uniformity is improved; liquid can be more uniformly distributed in the stirring barrel when being sprayed out, so that the consistency of the quality of a mixture is ensured; due to the arrangement of the circulating water pump and the liquid circulating spray head, the liquid in the barrel can be continuously pumped and sprayed into the stirring barrel again.

This utility model relates to the technical field of putty powder production, specifically a crushing device for producing interior wall putty powder. It includes a lower grinding body, an upper grinding body, a hopper, and a screen. The lower grinding body is fixed to a support column, and the lower end of the support column is fixed to the ground via a first bracket. An integral feeding pipe is formed on the upper surface of the upper grinding body, and the feeding pipe is rotatably mounted on a second bracket on the ground. The hopper is fixed to the ground via support legs. The lower and upper grinding bodies are located within the inner cavity of the hopper. An upper annular seat is fixedly connected to the upper end of the hopper via a primary connecting rod. By using this crushing device for producing interior wall putty powder, composed of the lower and upper grinding bodies, the putty powder raw materials are ground by the lower and upper grinding bodies, and then sieved by the screen, effectively ensuring the fineness of the putty powder and thus guaranteeing its later performance.

The invention provides a preparation method of a pill traditional Chinese medicine composition, the pill traditional Chinese medicine composition is prepared by matching with a pill traditional Chinese medicine composition preparation device, and the preparation method comprises the following steps: preparing pill cores, feeding the pill cores into a pill forming part, and enabling the pill cores entering the pill forming part to sequentially pass through a plurality of groups of material adding seats I and material adding seats II; high-pressure coating powder and an atomized adhesive are input into the first material adding base and the second material adding base through a powder tank and an adhesive atomization assembly respectively, and multiple layers of coatings on the outer portions of pill cores are completed; according to the traditional Chinese medicine pellet coating device, traditional Chinese medicine pellets can be coated in the movement process, the requirement for the precision of the coating powder amount is met, after pellet cores enter a feeding sliding way, part of the pellet cores can fall into a feeding flow channel, the pellet cores are prevented from falling into the feeding flow channel, and the pellet cores are prevented from falling into the feeding flow channel. Gas containing a coating material is blown into the feeding runner and can be blown to the pellet core to move in the feeding slide way in a rotating posture, so that the coating material can be uniformly adhered to the outer part of the pellet core.

The invention relates to the technical field of fusion firing processes, in particular to a multi-color purple sand pottery printing layering-free fusion firing process based on a special mineral material, which comprises the following steps: a raw material pretreatment step: crushing colorful purple sand raw ore, removing impurities, and screening to 200 meshes to obtain colorful purple sand raw ore pug; the special mineral material is finely ground and screened to 500 meshes, and the superfine special mineral material is obtained; and a precise mixing step. According to the invention, special mineral materials and colorful purple sand raw ore pug are scientifically proportioned, so that the shrinkage ratio difference of purple sand pug with different colors in the firing process is adjusted, the internal stress concentration of a green body is reduced, the phenomena of layering and cracking in the firing process are reduced, and the yield is increased; through the control steps of stepped drying, segmented heating firing, gradient cooling and the like, uniform removal of moisture in the green body and effective release of stress are ensured, and the texture stability and color uniformity of the multicolor purple sand ceramic seal are improved.