648results about "Ceramic materials production" patented technology

The invention discloses a method of preparing aluminum oxide-silicon carbide compound porous ceramic by aluminum-silicon industrial waste residues. The primary raw materials comprise industrial waste residues, carbon powder, a pore forming substance and an adhesive. The aluminum oxide-silicon carbide compound porous ceramic is prepared by the following steps of mixing, drying, forming and sintering to obtain a final product. Treatment and high additional value utilization of the industrial waste residues are achieved. The prepared porous ceramic is remarkable in performance, and can be applied to the fields of filtration, sound isolation, heat isolation, fire fighting and the like. The method is simple in process flow and convenient for industrialized promotion; and the cost is good to control and the method has extreme economical value.

The invention discloses double-layer fancy glaze with chapped ground texture and a preparation method of the double-layer fancy glaze, and relates to the technical field of ceramic glaze. The double-layer fancy glaze is composed of a ground glaze layer and a cover glaze layer. The ground glaze raw materials comprise potassium feldspar, kaolin, calcite, quartz, dolomite, zinc oxide and pigment; the cover glaze raw materials comprise potassium feldspar, waste porcelain powder, blank powder, chinastone, limestone, sepiolite, quartz, zirconium silicate with the particle size D50 being less than or equal to 1.0 mu m and pigment. The preparation method comprises the following steps: respectively carrying out ball milling to prepare ground glaze slip (32-40 baume degrees) and cover glaze slip (51-53 baume degrees); spraying ground glaze on the green body, drying, and then soaking with cover glaze; and finally, sintering at the temperature of 1250-1270 DEG C in a reducing atmosphere. Through the synergistic effect of the sepiolite and other components, the cover glaze has high surface tension, forms a microcrack network during drying, generates controllable glaze shrinkage during firing, forms a three-dimensional chap texture with crack width of 1-5mm and strong curled and raised crack edges, and meanwhile, the ground glaze completely covers a green body, so that the product practicability is ensured.

The invention discloses ceramic cup firing forming equipment, and relates to the technical field of firing forming equipment, the ceramic cup firing forming equipment comprises a kiln and a base, the base penetrates through the kiln, a rotatable ceramic roller bar is installed on the base, a supporting frame is placed at the top end of the ceramic roller bar, the ceramic roller bar is used for driving the supporting frame to be conveyed from a kiln head to a kiln tail, and the ceramic roller bar is used for driving the supporting frame to rotate. The supporting frame is composed of a bottom plate and a supporting plate and comprises a connecting mechanism and a limiting mechanism. By arranging a connecting mechanism and a limiting mechanism, a cup body is placed at the top end of a grid plate, a supporting plate is assembled above a bottom plate, at the moment, a transverse rod moves, a sliding rod slides in an inclined groove to drive a vertical rod to move upwards, the vertical rod drives a limiting frame to move, and the limiting frame moves to drive a limiting groove to move to the outer side of the bottom of the cup body; and the limiting groove is used for limiting the cup body, so that the ceramic cup can be conveniently limited in the firing process, and the cup body is prevented from shifting in the firing process.

The invention discloses a preparation method of a foamed thermal-insulation ceramic decorative plate in the technical field of building decorative materials. The method comprises the following steps: carrying out ball milling, spray drying, granulating and ageing on raw materials such as ceramic waste and kaolin; mixing and dispersing the aerogel-hydrogel gradient core-shell structure composite modified material and ceramic particles, and sieving to obtain composite powder; compounding sodium bicarbonate and azodicarbonamide with a foaming agent, mixing the foaming agent with the composite powder, and adding a surfactant and a dispersing agent to adjust the viscosity so as to prepare expandable ceramic slurry; the slurry is injected into a mold and coated with low-temperature glaze, and stepped heating sintering is conducted through a tunnel kiln and comprises the steps of preheating glue discharging, primary foaming, secondary sintering, gradient cooling and the like. The thermal insulation performance, the mechanical strength, the weather resistance and the decoration performance are synergistically improved, and the product is low in heat conductivity coefficient, high in compressive strength, excellent in ultraviolet aging resistance, firm in decoration layer combination and suitable for building outer walls and other scenes.

The invention discloses a high-temperature-resistant inorganic antibacterial ceramic glaze and a preparation process, and relates to the technical field of ceramic glaze preparation, the glaze is composed of a basic glaze and a zinc oxide-doped cerium dioxide inorganic antibacterial agent, and the basic glaze comprises feldspar, quartz, kaolin, calcite and talc. The preparation process comprises the following steps: mixing the raw materials, carrying out wet ball milling, adding the antibacterial agent and the dispergator, stirring at a high speed, sieving to remove iron, aging, glazing and sintering at a high temperature. In the process, an iron removal integrated unit integrating a two-stage vibration screening function and an automatic iron scraping function is adopted, and efficient and continuous iron removal operation is achieved. The obtained glaze can resist high-temperature sintering of 1150-1200 DEG C, the glaze surface is smooth and uniform, the glaze surface has lasting and efficient broad-spectrum antibacterial performance, glaze surface defects caused by iron impurities are effectively avoided, and the product yield and quality stability are improved.

The invention belongs to the technical field of special ceramic preparation, and particularly relates to high-strength special ceramic and a preparation method thereof. The high-strength special ceramic is prepared from the following raw materials: alumina powder, quartz powder, serpentine, phosphorus slag, eucryptite, barium borate, nano yttrium trifluoride, nano hafnium boride, nano strontium zirconate, nano lanthanum titanate and polyborosilazane. According to the high-strength special ceramic disclosed by the invention, the aluminum oxide powder, the quartz powder, the serpentine and the phosphorus slag are taken as matrix raw materials, eucryptite, barium borate and yttrium trifluoride are taken as fluxing agents, and nano hafnium boride, nano strontium zirconate, nano lanthanum titanate and polyborosilazane are taken as fillers, so that the prepared special ceramic has excellent bending strength and fracture toughness.

The invention provides a ceramsite proppant as well as a preparation method and application thereof. The method comprises the following steps: grinding a coal gangue raw material, pre-sintering, cooling and then grinding again; grinding the tungsten tailing sand, the low-grade bauxite, the carbide slag and the clay; grinding after mixing the raw materials; the raw materials comprise 45-60 parts of low-grade bauxite, 20-35 parts of pre-sintered coal gangue, 15-20 parts of tungsten tailing sand, 1-5 parts of carbide slag and 7-14 parts of clay; the total amount of the low-grade bauxite, the pre-sintered coal gangue and the tungsten tailing sand is 100 parts; granulating and drying; carrying out first sintering at 800-950 DEG C; second sintering is conducted at the temperature of 1050-1200 DEG C; and naturally cooling to obtain the ceramsite proppant. The technical problem to be solved is how to realize high-valued utilization of mine solid waste and low-grade bauxite, reduce dependence on high-quality bauxite and production cost, reduce sintering energy consumption and carbon emission, reduce product body density and improve key performance such as strength and sphericity of the proppant by optimizing raw material combination and a preparation process. And the requirements of oil and gas field fracturing operation are met.

The invention discloses a method for preparing foamed ceramic through low-temperature sintering and a product prepared through the method, and the foamed ceramic with pyroxene minerals as a main crystal phase is prepared through low-temperature sintering through silicon carbide-desulfurization slag composite foaming, szaibelyite fluxing and crystal phase regulation and control. Therefore, the composite closed pore system foaming ceramic material with high mechanical property and closed pore property is obtained. Low-cost minerals and solid wastes are adopted as main raw materials, so that the production cost of the foamed ceramic is effectively reduced, and a solid foundation is laid for large-scale industrial application of the foamed ceramic; meanwhile, efficient resource utilization of solid waste is achieved, remarkable economic and environmental benefits are achieved, and the method plays an important role in promoting industrial circular economy development and ecological environment treatment.

The utility model discloses a roller kiln transmission cooling system and a roller kiln device.The roller kiln transmission cooling system comprises a kiln body, a transmission platform composed of a plurality of ceramic roller bars, perforated bricks and a heat insulation sealing plate, the kiln body comprises kiln walls on the left side and the right side, and the transmission platform is erected on the kiln walls on the left side and the right side; the perforated brick is arranged in the middle of the kiln wall and used for erecting the ceramic roller, the heat insulation sealing plate is arranged on the outer side of the perforated brick, the ceramic roller penetrates through the heat insulation sealing plate and is rotatably arranged on the heat insulation sealing plate, and the heat insulation sealing plate is used for forming a heat insulation layer on the periphery of the perforated brick. The heat insulation sealing plate is arranged on the outer side of the perforated brick, so that a heat insulation layer is formed on the periphery of the perforated brick, the temperature of the outer side of the kiln at the perforated brick is prevented from being high, the distance from the driven end support and the driving end support to the kiln wall can be reduced, the supporting span of the ceramic roller is reduced, and high-temperature load-bearing deformation of the ceramic roller can be improved; and the firing quality of building ceramic products is improved.

The invention provides a method for preparing a ceramic material from lithium slag obtained by extracting lithium through a spodumene acid method, and relates to the technical field of energy conservation and environmental protection. The method for preparing the ceramic material by extracting the lithium slag through the spodumene acid method comprises the following steps: S1, component analysis: carrying out comprehensive component analysis on the lithium slag; s2, magnetic separation iron removal: enabling the lithium slag to pass through a magnetic field by using a magnetic separator, so that magnetic iron impurities in the lithium slag are adsorbed and separated; s3, particle size adjustment is conducted, and mechanical equipment is adopted for conducting particle size grading and grinding treatment on the lithium slag; step S4, mixing and ball-milling: according to a preset formula proportion, adding the lithium slag, kaolin, feldspar, quartz and an additive into a ball mill in proportion, adding a proper amount of water, and carrying out ball-milling and mixing for 2-4 hours, so that the raw materials are fully and uniformly mixed to obtain uniform ceramic blank slurry; finally, the problems that the lithium slag is difficult to treat, the requirement for ceramic materials is large, the preparation cost is high and the performance needs to be improved are solved, and energy-saving and environment-friendly treatment and resource recycling of lithium slag resources are achieved.

The present invention relates to the technical field of ceramics. Disclosed are a ceramic tile having a velvety texture and a replicated natural stone effect and a preparation method therefor. The ceramic tile comprises a green body layer, a surface glaze layer, a pattern texture layer, a digital deep-engraving ink layer, and a dry grain glaze layer which are sequentially arranged from bottom to top. The digital deep-engraving ink layer is composed of a digital matte deep-engraving ink. The dry grain glaze layer is composed of a dry grain glaze. A surface tension difference is formed between the digital matte deep-engraving ink and the dry grain glaze. By means of the improvement of the digital matte deep-engraving ink, the digital matte deep-engraving ink can bind with the dry grain glaze and achieve a matte three-dimensional non-collapse effect on the glaze surface. By means of the improvement of the dry grain glaze, the dry grain glaze exhibits better physical properties. By means of the improvement of a suspending agent, the suspending agent can achieve relatively strong binding affinity with dry grains, thereby imparting stronger polarity to the dry grain glaze, and when the dry grain glaze binds with the digital matte deep-engraving ink having high hydrophobicity, sufficient repulsive forces can be formed, resulting in the formation of a more refined and three-dimensional relief effect.

The application provides a foamed ceramic production process and relates to the field of lightweight ceramic material production. The process uses silicon carbide as a foaming agent and comprises the following steps: first, detecting the surface flatness of the foamed ceramic product after being taken out of the kiln to determine the surface topography data of the foamed ceramic product after being taken out of the kiln; then, according to the surface topography data, supplementing the foamed ceramic raw material layer which is prepared by a molding process before being taken into the kiln to burn in the same batch, wherein the raw material used for the supplementing is the same as or basically the same as the surface layer raw material component of the foamed ceramic raw material layer, and the supplementing area is the concave area of the foamed ceramic product after being taken out of the kiln; after the supplementing, the topography of the raw material layer is maintained, and the raw material layer is taken into the kiln to be sintered. The process can improve the flatness of the foamed ceramic after being sintered, reduce the grinding amount of cutting / grinding / polishing, save resources and reduce production cost.

The present application relates to the field of ceramic filler production, especially to a forming device for corrugated ceramic filler production. The existing forming device is inconvenient to uniformly sprinkle porcelain powder on the upper and lower surfaces of the mud piece, the mud piece is prone to reduce the available area after forming due to uncorrected posture, and the excess mud on both sides of the mud piece is prone to pull and deform the formed mud piece after extrusion. A forming device for corrugated ceramic filler production, comprising a feeding rack and the like; a square opening is formed in the feeding rack, two support frames are fixedly connected to one side of the feeding rack, a corrugated roller one and a corrugated roller two are rotatably connected between the two support frames, and a transmission gear is fixedly connected to the corrugated roller one and the corrugated roller two. When the mud piece is conveyed through the powder spraying frame and the brush roller, the rotation of the brush roller will carry the porcelain powder in the bottom frame and brush it on the bottom surface of the mud piece, and the porcelain powder shaken off by the powder spraying frame will be sprinkled on the upper surface of the mud piece, so that the porcelain powder sprinkled on the surface of the mud piece is more uniform and comprehensive.

The automatic clay processing line for porcelain production comprises a clay mixing shell, a roller conveyor is arranged on the right side of the clay mixing shell, and the automatic clay processing line further comprises a clay mixing mechanism and a segmenting mechanism; the mud mixing mechanism comprises an annular shell, a separation assembly, a mud mixing head, a cylinder, a power assembly, a self-folding assembly and a mud discharging power assembly, the annular shell is installed in the mud mixing shell, the mud mixing head is installed in the annular shell through the separation assembly, the cylinder is arranged on the upper side of the mud mixing head, and the power assembly is arranged between the annular shell and the cylinder; according to the automatic clay processing line for porcelain production, through the transmission element, clay on the edge portion in the clay mixing process can be automatically moved to the clay mixing center portion, the clay mixing effect of the device is improved, the clay mixing discharging component of the device does not have position dead angles, the clay sticking phenomenon at the clay mixing portion is avoided, and the production efficiency is improved. And the device can adjust the cutting length of the clay according to use requirements, and is convenient to use.

The application relates to the field of crushing facilities, in particular to a raw material crushing device for ceramic production, which comprises a base, a support extending from one side of the upper end of the base, two support shafts rotatably arranged at the upper end of the support, a cylinder base fixedly arranged between the two ends of the two support shafts, a first cylinder shaft rotatably arranged at one side of the upper end of the cylinder base, a second cylinder shaft rotatably arranged at the other side of the upper end of the cylinder base, a roller coaxially fixedly arranged between the first cylinder shaft and the second cylinder shaft, a mesh cylinder coaxially fixedly arranged at one side of the inside of the roller, a conical hopper fixedly communicated with the end of the mesh cylinder, the end of the conical hopper being fixed to the inner wall of the roller, a plurality of blocking plates linearly arranged at the opening of the conical hopper, a ball hitting piece penetratingly arranged on the outer surface of the roller, and a frame shaft connected to one side of the cylinder base. The application improves the crushing effect and increases the impact intensity of the grinding ball on the raw material when falling.

The invention provides steel fiber toughened foamed ceramic and a preparation method thereof. The preparation method comprises the following steps: carrying out surface pretreatment on steel fibers by adopting a silane hydrolysis solution, adding the pretreated steel fibers into a polyacrylamide-based aqueous solution for soaking and stirring, and separating and drying to obtain steel fibers with sacrificial coatings; the preparation method comprises the following steps: by taking argil, tailings or industrial solid wastes as main raw materials, adding a foaming agent and a reduction stabilizing aid into the raw materials, carrying out ball milling to obtain slurry, and then carrying out spray drying granulation to obtain foamed ceramic powder; and mixing and stirring the steel fiber with the sacrificial coating and the foamed ceramic powder, pouring the mixture into a mold for sintering, and cooling to obtain the steel fiber toughened foamed ceramic. The foaming ceramic has the performance of being cracked but not broken on the premise of ensuring the integrated characteristic of multiple functions of structure, heat preservation, sound absorption and decoration.

This invention discloses a three-dimensional relief ceramic tile and its preparation method. The three-dimensional relief ceramic tile comprises, from bottom to top, a base layer, a base glaze layer, a three-dimensional layer, a glaze layer, and a polishing layer. The base layer is located at the bottom of the ceramic tile and has a thickness of 8-10 mm. The base glaze layer is formed after applying a base glaze to the base layer and has a thickness of 0.5-1 mm. The three-dimensional layer is a pattern layer formed by inkjet printing on the base glaze layer and has a thickness of 1.5-2.5 mm. The glaze layer is formed after applying a surface glaze to the three-dimensional layer and has a thickness of 0.4-0.8 mm. The polishing layer is formed after polishing the glaze layer. This invention, through the combination of an ultra-white base glaze, a multi-layer inkjet-printed three-dimensional layer, and a surface glaze layer using multi-layer overlapping glazes, enables the three-dimensional relief ceramic tile to clearly reflect the texture and feel of the original stone, resulting in better visual impact and artistic expression, enhancing the three-dimensional effect and artistic appreciation of the ceramic tile, and meeting the market demand for high-end decorative ceramic tiles.

The utility model discloses a mixing device for sludge ceramsite production, and belongs to the technical field of sludge ceramsite production. The device mainly comprises a base; the spiral mixer is mounted at the upper end of the base; the discharging pipe is in pipeline connection with the upper end of the spiral mixer, and the upper end of the discharging pipe is in pipeline connection with a second hopper; the second weighing mechanism is arranged at the upper end of the second hopper; the fixing frame is mounted at the upper end of one side, far away from the discharging pipe, of the spiral mixer; and the spiral conveyor is installed at the upper end of the fixing frame, the discharging end of the spiral conveyor is connected to the discharging pipe through a pipeline, and the upper end of one side of the spiral conveyor is connected with a first hopper through a pipeline. According to the mixing device for sludge ceramsite production, when sludge is mixed, the matching degree of raw materials is guaranteed, the situation that the local concentration of finished sludge ceramsite is too high or too low is prevented, and the sintering performance and the performance of the finished product are guaranteed.

The utility model discloses a vacuum chamber with a double-propulsion material distribution device, which belongs to the technical field of vacuum pugging and comprises a pug feeding mechanism and a vacuum pugging chamber which are communicated with each other through a material distribution sieve plate, two pugging propulsion lines are arranged in the vacuum pugging chamber, and the two pugging propulsion lines respectively receive pug which is distributed by the material distribution sieve plate. And two pugging propelling lines are integrated in a vacuum cavity of the vacuum pugging chamber. The pug is distributed by the distribution sieve plate and then uniformly falls onto the corresponding pug propulsion lines, and is respectively and independently subjected to homogenization mixing and vacuum degassing treatment, and finally the pug is molded by the distribution lines and then pushed out. The capacity expansion of the vacuum pugging equipment is realized through double-line independent treatment, the production efficiency is improved, and the high integration degree of double lines ensures that the floor area expansion rate of the equipment is extremely low. Due to the fact that the pug of the double lines is processed in parallel after being distributed, the independent operation mode ensures the processing quality of the pug of each single line, and the homogenization and degassing effects are guaranteed.

The application discloses a high-hardness high-strength low-temperature sintering composite ceramic material and a preparation method thereof, and comprises the following raw materials in parts by weight: active silicon-aluminum composite material 35-45 parts, modified manganese-silicon slag 20-25 parts, alpha-alumina micro powder 10-15 parts, sodium feldspar 12-18 parts, wollastonite 8-12 parts, low-temperature composite flux 10-15 parts and water 80-100 parts. The high-hardness high-strength low-temperature sintering composite ceramic material takes the active silicon-aluminum composite material as the raw material, introduces multiple solid waste derived components such as the modified manganese-silicon slag and the low-temperature composite flux in the formula, the components complement each other and have a synergistic effect in the sintering process, so that the ceramic material has high hardness and high bending strength, and the unification of solid waste reduction, resource utilization and ceramic performance improvement is realized.

The invention discloses a Xinjiang porcelain glaze and a porcelain preparation method, and relates to the technical field of ceramic materials, the porcelain glaze takes 70%-80% of Xinjiang local Sanjianlake porcelain stone as a main body, and calcite (9%-15%) and white feldspar (6%-8%) are cooperatively blended. The preparation method comprises the steps of basic glaze preparation, glaze slip ball milling, glazing and five-stage firing. The firing system comprises the following steps in sequence: oxidizing and dehumidifying at 0-500 DEG C, oxidizing and decomposing at 500-1000 DEG C, reducing and coloring at 1000-1300 DEG C, preserving heat at 1300 DEG C and cooling along with a kiln. Through unique raw material ratio and accurate firing control, iron and titanium elements in Xinjiang minerals are successfully utilized, the porcelain with bright and smooth glaze and Xinjiang characteristics is stably fired, the problem of glaze defects caused by the fact that a traditional process is not matched with Xinjiang raw materials is solved, the yield is high, and the production cost is low. And a reliable technical path is provided for realizing high-valued industrial development of Xinjiang ceramic resources.

The invention belongs to the field of continuous furnaces, and particularly relates to a continuous furnace and a continuous firing method.The continuous furnace comprises a feeding section, a heating section, a heat insulation section, a cooling section and a discharging section which are sequentially arranged; the heat insulation section comprises a front heat insulation section and a rear heat insulation section which are sequentially arranged, a heat insulation door is arranged between the front heat insulation section and the rear heat insulation section, the heat insulation section further comprises a material pushing / pulling device, the material pushing / pulling device is used for transferring materials from the front heat insulation section to the rear heat insulation section, and the material pushing / pulling speed of the material pushing / pulling device is higher than the material conveying speed in the heating section. According to the continuous furnace, on the basis that the heating section and the cooling section are linearly arranged, the conveying efficiency is high, and a turning switching device is not needed, mutual interference of the heating section and the cooling section can be avoided by additionally arranging the heat insulation section, and the conveying efficiency of materials entering the cooling section from the heating section can be greatly improved.

The invention discloses a preparation method of a nanocrystal nucleus induced growth anorthite phase enhanced low-thermal-conductivity high-compression-resistance ceramic material, and belongs to the field of thermal insulation ceramics. The invention aims to solve the problem that a low-heat-conductivity and high-strength thermal insulation ceramic material cannot be prepared by directly utilizing fluidized bed high-calcium fly ash under the condition that a low-melting-point fluxing component is not introduced in the prior art. The method comprises the following steps: 1, preparing activated fluidized bed fly ash powder; 2, preparing a nano zirconium oxide-ethanol dispersion liquid; 3, preparing calcium oxide / activated fluidized bed fly ash mixed slurry; 4, spray granulation; 5, compression molding; and 6, sintering. The preparation method is used for preparing the anorthite phase enhanced low-thermal-conductivity high-compression-resistance ceramic material with nanocrystal nucleus induced growth.

The present application relates to the field of loading conveying equipment, especially to a full-automatic ceramic tile production loading device and method, which comprises a machine body, a plurality of conveying frames are arranged inside the machine body, adjusting frames are installed on both sides of the conveying frames, the conveying frames all comprise conveying belts, openings are evenly arranged on both sides of the middle part of the conveying belts, upper horizontal frames are arranged on the inner sides of the conveying belts, lower horizontal frames are arranged on the inner sides of the conveying belts, drive gears one are arranged in the middle part of the upper horizontal frames, rotating shafts one are fixedly connected to the middle part of the drive gears one, cavities are arranged on the inner front and rear parts of the upper horizontal frames, piston plates are slidably connected inside the cavities, reciprocating threaded rods are threadedly connected to the middle part of the piston plates, the present application integrates air blowing cleaning and electrostatic neutralization functions, improves the cleanliness of the blank, prevents the abnormality of the subsequent kiln burning process and the decline of the product quality caused by dust adhesion, and provides protection for the stability of the production link.

The invention belongs to the technical field of refractory materials, and particularly relates to an environment-friendly high-temperature-resistant refractory brick and a preparation method thereof. The environment-friendly high-temperature-resistant refractory brick is prepared from the following raw materials in percentage by weight: 12 to 15 weight percent of crystalline flake graphite, 8 to 12 weight percent of modified fly ash, 1 to 3 weight percent of zirconium oxide, 5 to 8 weight percent of composite binder and the balance of magnesium oxide, the modified fly ash is prepared by the following preparation processes: adding fly ash into a nitric acid solution, stirring, filtering, washing and drying to obtain active fly ash; adding the active fly ash, a surfactant and scandium chloride into water, adjusting the pH value at 50-60 DEG C, standing, filtering, washing and drying to obtain scandium modified fly ash; ball-milling and mixing the scandium modified fly ash, lime slag and triethanolamine, and calcining to obtain the modified fly ash. The refractory brick disclosed by the invention has excellent compression strength, high-temperature fracture resistance and excellent oxidation resistance.

The environment-friendly heat-resistant ceramic clay production equipment comprises a driving base, a charging barrel, a granulation assembly, a rolling assembly and a material mixing guide piece, a speed reduction unit and a main shaft rod are arranged in the driving base, and the main shaft rod is driven by a motor to rotate at low speed and large torque. The granulating assemblies are sequentially arranged above the charging barrel in a sleeving mode, each granulating assembly is composed of a detachable sleeve shell and a granule pore plate, and the pore diameters of the granule pore plates of different layers are gradually decreased step by step; the rolling assembly is composed of a truss rod and rolling blocks at the two ends, a material guiding inclined face, a rolling inclined face and a material discharging face are sequentially formed at the bottoms of the rolling blocks, and guiding, rolling and smooth discharging of materials are achieved. According to the equipment, continuous crushing and particle size control of heat-resistant waste are achieved through a multi-stage rolling and graded diameter control structure, the granulation module can be rapidly replaced according to needs, the equipment has the advantages of being uniform in crushing, adjustable in particle size, automatic in discharging and sufficient in mixing, and the production efficiency and particle consistency of environment-friendly ceramic clay are remarkably improved.

This invention discloses a black-based blue-spotted glaze with an earthworm-like pattern and its preparation method. The glaze consists of a body, a black base glaze, and a blue-spotted glaze from the inside out. The raw materials for the black base glaze are: feldspar, calcite, calcium borate, dolomite, talc, barium carbonate, quartz, bentonite, zirconium silicate, rutile, cobalt oxide, manganese oxide, and iron oxide. The raw materials for the blue-spotted glaze are: feldspar, limestone, alumina, talc, barium sulfate, Datong clay, zinc oxide, quartz, and titanium dioxide. The preparation method includes: 1. Wet ball milling the black base glaze raw materials to obtain a black base glaze slurry; 2. Wet ball milling the blue-spotted glaze raw materials to obtain a blue-spotted glaze slurry; 3. Bisque firing the body; 4. Applying the black base glaze slurry to the body and drying it; 5. Applying the blue-spotted glaze slurry to the body and drying it; 6. Oxidation firing and reduction firing of the body, followed by natural cooling to obtain the black-based blue-spotted glaze. The raw material formula of this invention is reasonable and environmentally friendly, which can improve the mechanical properties of the glaze; the preparation method is simple and the yield is high.

The utility model relates to a feeding kiln car for a tunnel kiln. According to the feeding kiln car for the tunnel kiln, through the arrangement of the sealing cover, heat in the combustion bin can be effectively prevented from escaping into air in the material taking process under the cooperation effect of the two vertical sealing plates, and therefore when a next batch of products need to be fed into the combustion bin to be sintered, the materials can be taken out through the sealing cover; and the temperature in the combustion bin is still high, so that the time for heating the combustion bin to the preset temperature is effectively shortened, and the energy loss is effectively reduced. By arranging a circular limiting table, the effects of supporting and limiting a connecting plate can be effectively achieved in the using process, and a worker can take materials conveniently; and by arranging a reset spring, it can be effectively guaranteed that a supporting force can be provided for the circular limiting table in the using process, and meanwhile the reset effect on the circular limiting table can be effectively achieved.

This invention discloses a clamping and rotating device for ceramic processing, including a rotary table assembly. A support assembly is mounted on top of the rotary table assembly, allowing the support assembly to rotate. Several diverse clamping components are mounted on the support assembly for fixing the ceramic. A driving component is mounted on the support assembly to drive the internal structures of the diverse clamping components. By using a rotary table assembly, this invention allows the ceramic to rotate as a whole without requiring it to come into contact with the fixed object during clamping. This allows workers to rotate the ceramic from a single position without moving. Furthermore, the rotation position can be limited, enabling comprehensive processing of the ceramic and significantly reducing the workload of workers.

The invention relates to the technical field of preparation of ceramic cutters for electrical porcelain fettling, and discloses a preparation method of a precisely formed ceramic cutter for electrical porcelain fettling, the method comprises the following steps: weighing raw materials according to mass percentage, the raw materials comprising Al2O3, clay, CaCO3, an additive 1 and an additive 2; mixing the weighed raw materials, deionized water and ballstone according to a specific mass ratio, and putting the mixture into a ball milling tank for full ball milling to obtain ceramic slurry; slowly injecting the prepared ceramic slurry into a mold, standing, demolding, drying a demolded cutter blank in the shade at a specific temperature, and polishing, modifying and removing burrs after drying in the shade to obtain a to-be-sintered blank; and putting the obtained to-be-sintered blank into a box-type furnace, heating to a sintering temperature according to a specific heating rate, carrying out heat preservation, then cooling according to a segmented cooling rate, and finally, carrying out furnace cooling to obtain the precisely-formed electric porcelain fettling ceramic cutter. According to the invention, the fluidity of the Al2O3-based ceramic slurry and the mechanical property of the cutter are improved, and the precise forming effect of the electroceramic fettling cutter with a complex structure is met.