Integrated reaction kettle for producing high-purity synthetic quartz

Abstract

The invention discloses an integrated reaction kettle for producing high-purity synthetic quartz . The integrated reaction kettle comprises a furnace body, a mounting seat, a lower furnace cover and a waste discharge pipe, a hearth is arranged in the furnace body, the furnace body comprises a refractory layer, a heat insulation layer, a heat preservation layer and a buffer layer, the heat preservation layer, the heat insulation layer and the heat preservation layer are wrapped by the buffer layer, the lower furnace cover is arranged on the outer side of the furnace body in a sleeving mode, the upper ends and the lower ends of the lower furnace cover and the furnace body are connected with a partition plate and themounting seat to form a heat insulation cavity, the lower furnace cover is provided with a heat insulation cavity air inlet and a heat insulation cavity air outlet, the partition plate is provided with a combustor and an upper furnace cover, an upper furnace cavity is formed between the upper furnace cover and the partition plate, and the upper furnace cover is provided with an upper furnace cavity air inlet and an upper furnace cavity air outlet. The fire spraying end of the combustor penetrates through the furnace body to be inserted into the hearth, the hearth is externally connected with an exhaust pipe, and the waste discharge pipe is connected with a heat insulation cavity exhaust port, an upper furnace cavity exhaust port and the exhaust pipe. The reaction kettle has the advantages that the surface temperature of the reaction kettle is reduced while the high-temperature environment of the hearth is ensured, harmful substances in the reaction kettle are prevented from overflowing, and maintenance and replacement are convenient.

Description

【Technical field】 [0001] The invention belongs to the technical field of reactors, in particular to an integrated reactor used for high-purity synthetic quartz production. 【Background technique】 [0002] At present, there are mainly direct method and indirect method to manufacture high-purity synthetic quartz products in China. The direct method mainly uses high-purity silicon tetrachloride as raw material. Physical and chemical reactions occur in a reactor at 1400-2000 ° C, and it is directly melted into high-purity synthetic quartz products. Pure synthetic quartz. A large amount of harmful substances hydrogen chloride and silica dust will be produced during the reaction, which need to be discharged to the waste gas treatment system for treatment. However, due to the need to maintain a high temperature environment in the reactor, domestic manufacturers generally reduce the exhaust volume in the reactor to ensure that, which will cause part of the hydrogen chloride and sili...

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Problems solved by technology

When the reactor is used, it is necessary to install the tower body equipment first, and then build the reactor on the top cement platform on site, resulting in differences and inconsistencies in the equipment structure, which makes the installation between the reactor and the tower body platform more troublesome, and the equipment cannot be replaced uniformly , while the installation period is long, affecting the normal production of nearby machines

[0004] At present, the reaction kettles used for manufacturing high-purity synthetic quartz products are all directly exposed insulation materials or single-layer metal-wrapped structures. The surface temperature of the reaction kettle is relatively high, which is easy to burn the operator. Insufficient sealing of the bottom of the kettle, severe light radiation, high energy consumption, and easy leakage of harmful gases

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