Energy-saving reaction furnace

Abstract

The energy-saving reaction furnace comprises a closed reaction tank and a preheating cylinder, the preheating cylinder is arranged in a cavity of the reaction tank, a material injection port is formed in the upper end of the preheating cylinder, a discharging port is formed in the lower end of the preheating cylinder and points to the lower portion of the cavity of the reaction tank, and a discharging channel is formed in the lower portion of the preheating cylinder. A protruding discharging limiting device is arranged on the inner circumferential face of the discharging channel. When the energy-saving reaction furnace disclosed by the invention is used for producing aluminum trichloride, the problem that an aluminum ingot is possibly cracked due to direct contact with high-temperature liquid can be solved, meanwhile, a large amount of heat energy is recycled, and the problem that extra energy needs to be consumed when the aluminum ingot is preheated is solved.

Description

technical field [0001] The invention relates to an energy-saving reaction furnace. Background technique [0002] The chlorination reaction furnace of anhydrous aluminum trichloride is almost open. The chlorination reaction is an exothermic reaction. Aluminum ingots and chlorine gas are burned in the furnace, generating a large amount of heat energy. The heat energy is not fully utilized, resulting in huge waste. The heat is dissipated into the air. Although the operation site has automatic control and exhaust air, it is still hot and dirty, and the operating environment is harsh. At the same time, it needs to consume additional energy for exhaust air and environmental cooling, resulting in secondary waste of energy. [0003] The aluminum ingot is directly put into the high-temperature reaction pool at room temperature. The huge temperature difference of seven or eight hundred degrees will lead to the bursting of the aluminum ingot, which may cause the workers to be scalded ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects that the reaction furnace in the prior art is used for the preparation of aluminum trichloride, and the defect that the temperature of the aluminum ingot is too large to burst due to the large difference between the temperature of the aluminum ingot and the temperature of the reaction pool during the process of blanking the aluminum ingot and the reaction furnace The defect that the temperature cannot be well utilized provides an energy-saving reaction furnace, which can improve the possible bursting problem of the aluminum ingot directly contacting the high-temperature liquid, and at the same time recycle a large amount of heat energy

Images