Carbon disulfide reaction furnace of novel material

Abstract

The invention relates to a carbon disulfide reaction furnace, and particularly relates to a carbon disulfide reaction furnace of a novel material. The carbon disulfide reaction furnace of the novel material comprises a furnace body, wherein the furnace body consists of a furnace body upper part, a furnace body middle part and a furnace body lower part, a carbon feed inlet and a carbon disulfide gas outlet are formed in the furnace body upper part, a slag removal opening and a sulfur feed inlet are formed in the furnace body lower part, the furnace body is formed by pouring refractory materials: silicon nitride and silicon carbide, and the furnace body upper part and the furnace body middle part as well as the furnace body middle part and the furnace body lower part are spliced through refractory mortar. The furnace body of the carbon disulfide reaction furnace is manufactured by combining silicon nitride and silicon carbide, an outer wall built by refractory bricks and a clearance layer are cancelled, the furnace body can be directly heated, the silicon nitride and silicon carbide combined product is high in thermal conductivity, the thermal conductivity coefficient is seven to eight times of that of the common refractory material, the heat transfer performance is greatly improved, the heat loss can be reduced, energy can be saved by about 20%, and the service life of equipment can be greatly prolonged.

Description

technical field [0001] The invention relates to a carbon disulfide reaction furnace, in particular to a carbon disulfide reaction furnace of a novel material. Background technique [0002] The production reaction furnace of carbon disulfide in the current chemical production has two layers inside and outside, and a gap layer is left in the middle. The inner furnace body is a metal furnace body, and the outer wall is made of refractory bricks. This structure has many disadvantages: [0003] 1 In order to prevent the inner furnace wall from being directly subjected to high temperature heating (1300-1400 degrees), a protective layer is built with refractory bricks outside the inner furnace body. In order to avoid the cracking and collapse of the refractory layer caused by thermal expansion and contraction of the inner furnace body, a gap layer is left in the middle. This structure greatly reduces heat transfer performance, increases heat energy loss, and increases prod...

AI Technical Summary

Problems solved by technology

The disadvantage of this design is that the large shell casted by refractory materials is prone to cracks at high temperatures, causing the furnace body to collapse, so it is difficult to implement in practice, and it is useless for practical application.

Its chemical stability is good, but its anti-corrosion ability is very weak, and the material will be eroded gradually during use, resulting in a short service life of the furnace body

Thermal shock stability is slightly better than that of silica bricks, but there is still air leakage in the furnace body caused by expansion and contraction, which also cannot meet the requirements of long life of the furnace body

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