6results about How to "Fully carbonized" patented technology

The invention discloses vinegar residue biomass charcoal as well as a preparation method and application thereof, and belongs to a resource recycling technology. The preparation method of the biomass charcoal comprises the following steps: pyrolyzing vinegar residues under an anaerobic condition, and cooling to room temperature to prepare vinegar residue biomass charcoal; the pyrolysis temperature is 400-600 DEG C, and the pyrolysis time is 2-4 hours. The prepared vinegar residue is alkaline biomass charcoal which is large in specific surface area and high in adsorption capacity, has a porous structure and has an adsorption effect on heavy metal ions in a water body. The method not only can effectively utilize wastes, but also can react to purification of a water body environment, and solves the technical problem of low efficiency of adsorbing heavy metal ions by using vinegar residues in the prior art.

The invention provides large-particle-size carbon-coated sodium vanadium phosphate and a preparation method and application thereof.The preparation method of the large-particle-size carbon-coated sodium vanadium phosphate comprises the following steps that a sodium source, a vanadium source and pure water are placed in a container, and the reaction temperature is controlled to range from 70 DEG C to 100 DEG C in a water bath; after a uniform solution is formed through the reaction, the container is placed in a water bath at the temperature of 40-60 DEG C for cooling crystallization, the crystallization time is 2-6 h, and a sodium metavanadate solid is obtained; the sodium metavanadate solid is placed in a reducing atmosphere to be roasted, and NaVO2 is prepared; the preparation method comprises the following steps: mixing NaVO2, a sodium source, a phosphorus source and a carbon source, and carrying out sanding and spray drying to obtain a sodium vanadium phosphate precursor; and placing the sodium vanadium phosphate precursor in an inert atmosphere for two-stage roasting to obtain the large-particle-size carbon-coated sodium vanadium phosphate. The prepared large-particle-size carbon-coated sodium vanadium phosphate is large and controllable in size, and when the large-particle-size carbon-coated sodium vanadium phosphate is used as a sodium-ion battery positive electrode material, the energy density of unit mass can be improved, so that the electrochemical performance of a battery is improved.

The invention provides a thermal insulation material for combustion type heating cigarettes as well as a preparation method and application of the thermal insulation material. The thermal insulation material comprises the following components: aerogel particles, hollow glass beads, ceramic fibers and expanded graphite. When the thermal insulation material is applied to combustion type heating cigarettes, the thermal insulation environment can be effectively constructed, the thermal loss of the cigarettes is reduced, the thermal uniformity and the utilization efficiency are improved, and finally the technical effect of more complete carbonization of cigarette core materials is achieved.

The invention provides a resistance-adjustable heating plate preparation method and application thereof, and the method comprises the following steps: dispersing a porous graphene-carbon nanotube hybrid in a solvent, adding an organosilicon polymer precursor, and carrying out mixing and grinding to obtain a slurry; the slurry is coated on a substrate to form a coating area, at least one high-temperature sintering area and at least one low-temperature sintering area are arranged in the coating area, the high-temperature sintering area and the low-temperature sintering area are sintered in different areas, and the sintering temperature of the high-temperature sintering area is higher than that of the low-temperature sintering area; and obtaining the heating plate. According to the preparation method of the heating plate with the adjustable resistance, provided by the invention, the slurry is prepared from the porous graphene-carbon nanotube hybrid and the organosilicon polymer precursor, a uniform conductive network is formed by virtue of the porous structure of the hybrid, and the film forming and bonding strength is guaranteed; partitioned sintering is carried out in the same coating area, high and low surface resistance areas are formed by using temperature difference, thermal stress is reduced by the integrated conductive layer, and the reliability of the heating plate is remarkably improved while the process is simplified.

This invention discloses a pressure calcination process for producing high-purity graphite, relating to the field of graphite production technology, including the following steps: S1, mixing graphite raw materials with a binder; S2, placing the graphite raw materials containing the binder into a mold on a placement platform, and then placing the placement platform and the mold together into a calcination furnace; This invention uses a designed flipping mechanism to drive the mold to flip, realizing the exchange of positions between the upper and lower layers of graphite raw materials, allowing the previously underheated bottom raw materials to directly receive infrared radiation from the resistance wire, eliminating temperature gradients, improving calcination uniformity, and simultaneously working with a transparent pressure plate to compact and flatten the graphite raw materials in the mold before and after flipping, ensuring uniform heating for more complete carbonization of the binder, resulting in consistent density of the green body, and promoting the full volatilization of impurities in various areas of the raw materials, laying the foundation for subsequent graphitization, and improving the purity and quality stability of high-purity graphite products.

This utility model relates to the technical field of equipment for the resource utilization of organic solid waste, and discloses a device for preparing activated carbon from liquor lees. The device includes a carbonization chamber and a combustion chamber. The combustion chamber is located at the bottom of the carbonization chamber and semi-encloses the lower half of the carbonization chamber. A feed pipe is located at the center of the top of the carbonization chamber. A rotating assembly is located inside the carbonization chamber. The rotating assembly includes a storage mesh frame and a rotating shaft. A cylinder is rotatably connected to the center of the upper part of the front and rear outer walls of the storage mesh frame, and a fixing block is rotatably connected to the other end of the cylinder. In this utility model, the quick assembly and disassembly of the storage mesh frame and the rotating shaft are achieved through the cooperation of structures such as springs, round blocks, round rods, paddles, and limiting round holes. This achieves the goal of convenient replacement and maintenance of the storage mesh frame, effectively improving the operational flexibility and maintenance efficiency of the device, and reducing the time consumed during the assembly and disassembly of the storage mesh frame.