FIELD: chemical industry; ceramic industry; construction materials industry; devices for production of mullite, ceramic material, refractory and construction materials.
SUBSTANCE: the invention is pertaining to the installations of the high-temperature treatment of the topaz concentrate for production of mullite and may be used in the industry at production of the ceramic material, the refractory and construction materials, and also in the chemical industry. The installation for production of mullite consists of the furnace including the exterior and interior stacks located coaxially with formation of the heating chamber and supplied with the plasma generators connected by their outlets with the heating chamber, and the gas circulation circuit, which using the gas counter flow to the granules movement is switching on the activator of consumption. The heating chamber is supplied with the sets of nozzles connected to the activator of consumption and located so, that to provide the horizontal and vertical circulation of the gas in the heating chamber and its feeding into the layer of the granules through the holes executed in the wall of the interior stack. The furnace inlet is connected with the inlet of the granules drying furnace, and the outlet - with the receiving hopper equipped with the circuit of circulation of the gas cooling the granules. The internal stack of the furnace is made with the alternating in pairs protrusions, under which there are the holes connecting the internal stack with the heating chamber. Each next pair of the protrusions is shifted with respect to the previous one by 90°. The installation allows to provide conditions for production of the qualitative fibrillar and (or) needle-shaped mullite crystals in the continuous mode.
EFFECT: the invention allows to provide conditions for production of the qualitative fibrillar and (or) needle-shaped mullite crystals in the continuous mode.
3 cl, 5 dwg
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