A silicon carbide production line

Abstract

The invention relates to the technical field of silicon carbide smelting, in particular to a silicon carbide production line which comprises a smelting furnace and a chute feeder, wherein an exhaust hole is formed in the upper part of the smelting furnace; a feeding hole and a discharge hole are formed in the lower part of the smelting furnace; a slag outlet is formed in the bottom of the smelting furnace; the chute feeder is positioned below the slag outlet; an inner cylinder of which the size can be freely adjusted is arranged inside the smelting furnace; the bottom surface of the chute feeder adopts a horizontal surface; a high-temperature chain chopper is arranged inside the chute feeder; a material trolley is arranged at the front end of the high-temperature chain chopper in a conveying direction; an exhaust pipe is arranged at the exhaust hole; the exhaust pipe is arranged on the outer wall of the smelting furnace in a spiral manner; a purification device is connected to the free end of the exhaust pipe; a communicating tube is arranged on the purification device; a turbine is connected with the free end of the communicating tube; an air pump is arranged on the communicating tube; the high-temperature chain chopper is driven by the turbine. By adopting the silicon carbide production line, not only is furnace slag automatically cleaned, so that a step of manually shoveling off furnace slag is canceled, but also the silicon carbide which is smelted inside a furnace body can be rapidly cooled.

Description

technical field [0001] The invention relates to the technical field of silicon carbide smelting, in particular to a silicon carbide production line. Background technique [0002] Silicon carbide, also known as corundum or refractory sand, has a molecular formula of SiC. Its hardness is between corundum and diamond, and its mechanical strength is higher than that of corundum. It can be used as abrasive and some other industrial materials. The industrial production of silicon carbide has a history of more than 100 years. The industrial production of silicon carbide is smelted at high temperature with raw materials such as quartz sand, petroleum coke (or coal coke), wood chips (salt is required to produce green silicon carbide). The industrial production of artificial silicon carbide was invented by American Acheson, and people still use the Acheson furnace and methods for industrial production. At least the furnace has been enlarged a lot, and the level of mechanization has al...

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Problems solved by technology

[0005] But the prior art also has the following problems: 1. After the slag enters the feeding trough, because the slag is high temperature, during the sliding process, some slag will stick to the bottom, side wall or repose corner of the feeding chute. Manually hang down the slag and let it slide into the feeding car, so it is very inconvenient; 2. The exhaust gas is not reused; 3. After the smelting is completed, the silicon carbide formed in the furnace cannot be cooled quickly

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