25 results about "Kiln" patented technology

The invention relates to a fire resistant material radiation energy saving paint painted at the inner liner of the furnace, which belongs to the inorganic paint field. The radiation energy saving paint is mixed of powder and water, wherein the composition of the powder is as follows: binding material accounting for 1 percent to 4 percent, filling material accounting for 34 percent to 65 percent and radiating material accounting for 34 percent to 65 percent. The weight ratio of the powder and the water is 1:1 to 1.6. The binding material is composed of quick-dissolving sodium silicate powder of 70 percent to 100 percent and carboxymethyl cellulose of 0 percent to 30 percent, the filling material is composed of fused silica powder of 60 to 100 percent, high temperature alumina powder of 0 percent to 40 percent, clay of 0 percent to 3 percent and zircon powder of 0 percent to 30 percent of, and the radiating material is composed of silicon carbide of 45 percent to 84 percent, ferric oxide of 0 percent to 15 percent, cerium oxide of 0 percent to 30 percent and manganese dioxide of 0 percent to 10 percent. The radiation energy saving paint of the invention has the advantages that the thermal shock resistance is superior, the heat insulating property is good, the radiation coefficient is high, and the operation of the preparation technology is simple and convenient.

The invention discloses a method and system for treatment of kiln slag including lead and zinc. The method includes the steps that (1) the kiln slag including lead and zinc is dried, so that a kiln slag dried material is obtained; (2) the kiln slag dried material, pulverized coal and binder are mixed, so that a mixed material is obtained; (3) the mixed material is subjected to pelletizing treatment, so that mixed pellets are obtained; (4) the mixed pellets are fed to a feeding zone of a rotary hearth furnace, the mixed pellets are reduced through a preheating zone and a high-temperature zone of the rotary hearth furnace in sequence, smoke dust containing silver, zinc oxide and lead oxide is exhausted from the preheating zone, and the obtained metallized pellets are discharged from a discharging zone; and (5) the metallized pellets are subjected to ore grinding magnetic separation treatment, and metal iron powder and tailings are obtained. By the adoption of the method, carbon, iron, lead, zinc and silver in the lead and zinc kiln slag can be recycled comprehensively; and moreover, the recovery rate of the iron can reach 80%, the volatilization rate of the zinc can reach 96%, the volatilization rate of the lead can reach 95%, and the volatilization rate of the silver can reach 90%.

An apparatus for cleaning deposits from the interior surfaces of a kiln. The apparatus utilizes a directed high-pressure fluid jet to remove deposits adhering to elements within a kiln. The pressurized fluid is delivered to the fluid jet through the shaft of a rotary drill. The drill shaft is received in a sleeve permitting rotational and longitudinal displacement of the shaft. The sleeve also defines a plenum surrounding the drill shaft to communicate pressurized fluid to the fluid jet throughout longitudinal and rotational displacement of the drill shaft. The drill further utilized a boring bit suitable for penetrating encrusted deposits to provide the fluid jet access to the interior surfaces of the kiln. For removing severe encrustations, the drill bit may be used to partially penetrate the encrustation and a linear actuator may then be employed to press large portions of the encrustation from the kiln's refractory lining.

The invention discloses a method for preparing lithium manganate by a wet-doping method. By the wet-doping method, manganese chloride solution, ammonium bicarbonate solution and lanthanum nitrate solution are reacted in aqueous solution. Lanthanum hydroxide and manganese carbonate are generated in a coprecipitation way. Manganic manganous oxide-doped crystals are obtained after high-temperature calcination, crushing and grading. Lithium carbonate and the manganic manganous oxide-doped crystals are mixed according to the molar ratio of lithium to manganese, and the molar ratio is 1.15:2. After being mixed effectively and uniformly, the above mixture is put into a kiln to be sintered at a high temperature. After cooling, crushing, grading, sieving and deironing of the sintered materials, spinel-shaped and lanthanum-doped lithium manganate is obtained. The method can combine materials and doping elements tightly. During the high-temperature calcination reaction, the doping elements can be inserted into crystal structures to be doped completely and fused with the doped crystals together. The doping of lanthanum element can raise the average oxidation state of manganese ions, inhibit Jahn-Teller effect effectively, reduce the capacity fading and raise the cycle performance.

The invention discloses a surface concave-convex pattern sculpturing molding method for a Jianshui purple pottery white mud device. The method comprises the following steps: making a pottery blank from Jianshui purple pottery white mud, drying without direct sunshine, firing in a furnace kiln for 1-2 hours at 300-350 DEG C, carrying out furnace cooling, and discharging from the kiln so as to obtain a primary pottery blank; glazing the surface of the primary pottery blank, leaving to stand, when a glaze is stably adhered to the surface of the primary pottery blank and does not flow any longer,and before the glaze on the surface is completely hardened and cured, sculpturing patterns on the surface of the primary pottery blank; controlling the sculpturing depth to 2-4mm, leaving the sculptured primary pottery blank to stand till the glaze on the surface is completely dried, carrying out secondary firing in the furnace kiln for 6-12 hours at 1000-1300 DEG C, carrying out furnace cooling,and discharging from the kiln, thereby obtaining a finished product. By adopting the method, a Jianshui purple pottery making process, a glazing process and a sculpturing process are perfectly combined, the method is scientific and reasonable, and the made purple pottery product is good in surface pattern three-dimensional feeling, exquisite and unique.

The invention discloses a method and device for achieving bi-directional stepping of a kiln car on an assembling and disassembling rail. In the method, the bi-directional moving function of the kiln car on the assembling and disassembling rail is achieved through alternate work of two pushing devices, and the pushing devices are arranged on the assembling and disassembling rail, in parallel with each other, and opposite in pushing direction; the stepping moving distance is controlled by regulating the travel of a hydraulic cylinder on the pushing devices, and the stepping moving distance is equal to the length of the kiln car. The alternate work of the kiln car is controlled through an electrical interlocking device. The method and device greatly lower labor intensity of workers. A plurality of kiln cars can be pushed according to production conditions, and production efficiency is improved. The method and device can be used for not only bi-directional stepping control of the kiln car, but also other bi-directional stepping moving occasions.

The invention relates to a roller kiln, in particular to a combustion supporting air heating and energy storing energy-saving roller kiln. Upper combustion supporting air pipes extending along a preheating and firing zone kiln body are arranged above fireproof heat insulation materials on the two side walls of the preheating and firing zone kiln body of the roller kiln. A lower combustion supporting air box extending along the preheating and firing zone kiln body is arranged on the outer side of a fireproof heat insulation material at the bottom of the preheating and firing zone kiln body. The upper combustion supporting air pipes and the lower combustion supporting air box are communicated with an upper row of nozzle combustion supporting air pipes and a lower row of nozzle combustion supporting air pipes of a preheating and firing zone respectively. A main combustion supporting pipe is arranged on the outer portion of the preheating and firing zone kiln body. The main combustion supporting pipe is connected with a high-pressure combustion supporting draught fan and a combustion supporting air inlet. The main combustion supporting pipe is communicated with the upper combustion supporting air pipes and the lower combustion supporting air box through a plurality of branch combustion supporting pipes on the two sides. According to the combustion supporting air heating and energy storing energy-saving roller kiln, the upper combustion supporting air pipes and the lower combustion supporting air box are buried in the kiln fireproof heat insulation materials, a heat insulation layer is arranged on the outer wall, energy can be accumulated, outward dissipation of heat in the kiln body can be reduced, when the temperature of combustion supporting air is higher than that of the fireproof materials of the wall, heat can be reversely transferred into the kiln, and energy consumption of the kiln is greatly reduced.

The invention relates to technology of a water-based combustion-supporting straw particle boiler-kiln universal burner with fuels such as coal, gas and oil. Specially-shaped fireproof ribbed bricks are built in a square-tank water-cooling-wall machine body to form a plurality of pairs of two-side square-tank hearth backfire collision hearth structures, two sides of a central hearth are provided with a square-tank hearth, a fire collision hearth, a fire outlet, a special boiler material covering cap system, an extension hopper, a streamline pushing curve, a streamline extension pipe, a burner body and a cooling triangular comb, mixed application of multiple fuels or replacement of a servo fed material can be performed, the air supply coefficient of a boiler adopting water and magnesium steam water-based supported combustion technology to completely or not completely substitute for a traditional air supported combustion technology is far less than 1, and thus the ultra-efficient energy-saving and environment-friendly boiler-kiln universal burner fulfills six purposes of no air consumption, water-based combustion supporting, ultra-efficient energy conservation, no generation of NOx, desulphurization and decomposition and solidification of carbon dioxide under the catalysis of steam of water, magnesium, etc.

The invention discloses a timber drying furnace, which comprises a furnace body, and a flue connected with the burning chamber and the fume outlet of the furnace body. The flue is fixed outside the furnace body, a heat conducting oil interlayer communicated is arranged on the flue and the furnace body, an expansive oil pipe connected with atmosphere is arranged in the heat conducting oil interlayer to be used for a hydraulic pump cycled by the heat conducting oil in the heat conducting oil interlayer; the heat conducting oil is adopted as a medium, the higher drying temperature can be obtained, and the temperature is easy to be controlled, the drying time is greatly saved, because an open mouthed water collecting sump is arranged outside the heat conducting oil interlayer, the water quantity can be increased and reduced according to the demand, thereby controlling the humidity of the hot air blast, and ensuring that the drying timber is free from the crack, the deformation and the discolor, the drying is even, the product quality is improved, when the heat quantity passes through the flue, the heat conducting oil in the flue interlayer can be completely absorbed, thereby fully utilizing the heat quantity, therefore the acceleration speed is improved, the thermal efficiency is high, and the fuel material is saved.

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

The invention relates to a technology for making bricks from aggregate waste residues. The technology comprises the following steps: S1, obtaining the aggregate waste residues; S2, crushing the aggregate waste residues to form a powdery material; S3, taking the powdery material obtained in step S2, cement plant kiln dust and cement in proportion to obtain a mixture, wherein the mixture contains, by mass, 75-77% of the aggregate waste residues, 9-11% of the cement plant kiln dust and 10-13% of cement; S4, adding water accounting for 0.5-1% of the total mass of the mixture into the mixture, andperforming stirring; S5, feeding the stirred mixture obtained in step S4 into a press mold for molding, and pressing the molded mixture to form green bricks; and S6, carrying out autoclaved curing onthe green bricks by using an autoclave. The technology for making bricks from aggregate waste residues can effectively utilize the aggregate waste residues and reduce the discharge amount; and all theraw materials used for making the bricks come from the self cement plant and the aggregate factory, so the industrial chain of the cement enterprise can be easily extended to form circular economy enterprises.

The invention provides a pyrolytic process method for directly drying pulverized coal through semicoke. The pyrolytic process method includes the steps that 1, to-be-pyrolyzed pulverized coal is fed into a rotary screen for screening, fine pulverized coal is fed into an airheater, and residual pulverized coal is fed into a semicoke-pulverized coal heat exchanger for drying and dehydration; 2, high-temperature hot smoke generated when the fine pulverized coal is burnt in the airheater is sequentially cooled through a pyrolysis kiln and a drying preheater and discharged, a part of the smoke is returned to the airheater to serve as return air, a part of the smoke is used as moisture carrying gas, and residual smoke is discharged outwards; 3, the pulverized coal dehydrated through the semicoke-pulverized coal heat exchanger enters the draying preheater for further drying; 4, the further-dehydrated pulverized coal enters the pyrolysis kiln for pyrolysis; 5, pyrolysis smoke generated in the pyrolysis kiln sequentially passes through a settling chamber and a filter and is transferred into following processes for treatment, the hot smoke discharged from the pyrolysis kiln enters the drying preheater and is cooled and discharged, and hot semicoke discharged from the pyrolysis kiln is cooled through the semicoke-pulverized coal heat exchanger and transported to a semicoke storage yard. The to-be-pyrolyzed pulverized coal is dried directly through waste heat of the semicoke, and the use efficiency of heat energy is high.

The invention relates to production equipment of solar ultra-clear embossed glass, in particular to an online coating system for solar ultra-clear embossed glass. The system includes a glass melting furnace, a calender and a movable table connected in sequence, and an annealing furnace is arranged on the movable table; the feature is that a silicon dioxide coating control room equipped with a reciprocating spray gun is arranged in the annealing furnace. It mainly solves the technical problems of silicon dioxide coating in the existing off-line processing method. The production process is complicated, the time consumption is long, and the materials, energy and labor are not economical. It can improve the effective light transmission of ultra-clear patterned glass. High efficiency, reduced material consumption, reduced manpower waste, multi-process one-line synthesis, to achieve the purpose of producing solar ultra-clear embossed coated glass substrates with the best performance and economic effects.

The invention relates to a high-temperature zone track of a nitrogen atmosphere protection pushed slab kiln, which is characterized by comprising side tracks, middle tracks, spacing blocks and baffle plates, wherein each side track is in an L shape; the transverse base surface of each side track is provided with a groove and a notch; the lower end of each side track is provided with one to three arch notches; each middle track is in an inverted T shape; the lower end of each middle track is provided with one to three arch notches; two side tracks are respectively installed on both sides; four middle tracks are installed between the two side tracks; the spacing blocks and the baffle plates are installed among the side tracks and the middle tracks and among the middle tracks; and the two middle tracks in the middle are abutted. The invention has the advantages of difficult looseness, less and convenient maintenance and repair and enhancement of production efficiency.

The invention provides a sandwich setter plate, which comprises a main body of the setter plate, wherein the periphery of the main body of the setter plate is provided with low baffles. The low baffles can play a role in blocking electronic component products placed on the setter plate, can prevent the electronic component products from falling, and avoid the phenomenon of kiln blocking caused by the falling of the electronic component products.

This invention relates to an alkalescence light Mg olivine brick and its manufacturing method, in which, the brick is manufactured with olivine sand, Mg sand, coke, charcoal, pulp effluent in weight proportion, and the manufacturing method includes: adding particles of olivine sand, Mg sand, coke and charcoal into a sand mixing machine to be dry-mixed, then adding pulp effuluent to mix them in humid then adding olivine sand and Mg sand fine powder for mixed refining, then putting a mixed material into a die to be pressed on a rubbing machine to process it to a blank to be dried over 24h under 25-35deg.C natural temperature then to be dried in a drying kiln and sending the blank into a tunnel stove to get a product then cutting and grinding it to mold.

The invention discloses a float glass integrated production device, and the device comprises a main conveying roller and further comprises a supporting block and a branch conveying roller; one end ofthe main conveying roller is sleeved with a sleeve in a sliding and clamping mode, and the sleeve is in transmission connection with a motor gear of a first motor through a first belt wheel structure;the supporting block is in transmission connection with a motor gear of a second motor through a second belt wheel structure, the branch conveying rollers are in transmission connection with a motorgear of a third motor through a third belt wheel structure, and a connecting column is movably connected into the sleeve in a sleeved mode. By means of the combined motion design of the multiple motors and the multiple belt wheel structures, glass on the main conveying roller can be divided into multiple conveying ways to be conveyed into different annealing kilns under the condition that a production line is not additionally arranged and changed, and different annealing treatment can be conducted on the glass through the different annealing kilns; and the annealing processing line can be expanded by additionally arranging the annealing kiln, so that the annealing efficiency is improved.

The present invention discloses a fermented soybean fermentation tank. The fermented soybean fermentation tank comprises ceramic walls (1) and four square kiln tanks evenly divided by the ceramic walls (1), one fermentation tank (2) is respectively suspended within each of the square kiln tanks, one water bath insulation zone (3) is preserved between each of the fermentation tank (2) and the corresponding square kiln tank, and one water outlet (6) is arranged at the bottom of each of the water bath insulation zones (3); the fermented soybean fermentation tank also comprises a cylindrical heating tank (4) separated by the ceramic walls (1), a water inlet (5) is arranged at the upper part of the heating tank (4), the lower part of the heating tank is respectively communicated with each of the water bath insulation zone (3) via circulation pumps (7), and heating electric resistance wires (9) are arranged on the outer peripheries; and the fermented soybean fermentation tank also comprises temperature sensors (8) arranged in each of the water bath insulation zone (3) and a controller (10), and the controller (10) is respectively connected with switches of each of the temperature sensors (8), each of the circulation pumps (7), each water outlets (6) and heating electric resistance wires (9). The fermented soybean fermentation tank uses the water bath to conduct insulation and is stable in quality.

The invention relates to a method for recovering carbon dioxide from tail gas of an industrial furnace and producing lithium carbonate, which comprises the following steps of: removing particulate matters from the tail gas of the industrial furnace, performing denitration and desulfurization treatment, pressurizing the treated tail gas to 0.1-0.7 MPa, dehydrating, and removing NOx and SO2 by adopting a double-tower temperature swing adsorption device to obtain purified tail gas, introducing into a four-tower pressure swing adsorption device to separate carbon dioxide, and finally introducing the obtained carbon dioxide into a lithium hydroxide solution to prepare lithium carbonate. According to the invention, trace sulfides and nitrogen oxides in the tail gas are removed by using a temperature swing adsorption method, so that the total concentration of SO2 and NOx in the tail gas is 1t; according to the method, a pressure swing adsorption method is adopted to recover carbon dioxide, the obtained carbon dioxide gas is high in purity, high in recovery rate and large in treatment capacity, the separated and refined high-purity carbon dioxide can be used as a raw material in the carbonization process to produce battery-grade lithium carbonate, and resource utilization of the carbon dioxide in the tail gas of the industrial furnace is achieved.

The invention provides a laterite-nickel-ore reduction and cooling method. The laterite-nickel-ore reduction and cooling method comprises the following steps that reduced products of laterite nickel ore pass through a vertical cooling furnace and conduct heat exchanging with nitrogen, and the reduced products are cooled; and the reduced products after being cooled are crushed, ore-grinded and magnetic-separated, and high-nickel concentrate is obtained. According to the laterite-nickel-ore reduction and cooling method, when reduction ore of the laterite nickel ore is taken out from a kiln, waste heat can be sufficiently utilized and recycled, water resources are saved, and the environment is protected; and iron grains are promoted to grow up in the cooling process, the ore-grinding cost is reduced, and the nickel recovery rate is improved.

The invention provides an automatic flameout and ignition device for a kiln. The device comprises a containing box, the front face of the containing box is provided with an opening, the opening is connected with a sealing plate through a hinge, the back face of the sealing plate is fixedly connected with a rectangular plate, a strip-shaped hole is formed in the side portion of the rectangular plate, a first electric push rod and a second electric push rod are fixedly arranged in the containing box, the telescopic end of the first electric push rod is fixedly connected with a U-shaped plate, the inner wall of the U-shaped plate is fixedly connected with a connecting rod, the telescopic end of the second electric push rod is fixedly connected with a fixing plate, and an igniter and an open fire detector are fixedly mounted on the side wall of the fixing plate. The invention relates to the technical field of kilns. The problems that a worker beside the kiln needs to observe the ignition state while pressing an igniter switch to determine whether ignition succeeds or not during kiln ignition, and meanwhile the service life of the igniter is greatly shortened due to the fact that the igniter is located in flames for a long time are solved.