Extension system of hydrogen fluoride pre-reactor

Abstract

The invention discloses a hydrogen fluoride pre-reactor extension system. The diameter of an extension section cylinder is greater than that of a second-stage reaction section; an extension section stirring shaft is arranged in the extension section cylinder body, the extension section stirring shaft is connected with the main shaft, and paddles are arranged on the extension section stirring shaft; every three paddles form a group and are independently arranged along the axial direction of the stirring shaft of the extension section, and the central angle of each paddle is 120 degrees; a cleaning pin corresponding to each paddle is arranged on the inner side of the extension section cylinder body, the cleaning pin is cylindrical, and the bottom of the cleaning pin is fixed on the inner side of the extension section cylinder body; an outer fixing flange is arranged on the outer side of the extension section cylinder and fixed to a left flange of an expansion joint, and a right flange of the expansion joint is fixed to the furnace body. The invention has the advantages that gas generated by reaction is not blocked, the utilization rate of raw materials is increased, and the consumption of energy and raw materials is reduced. And the expansion joint on the cylinder body of the extension section plays a sealing role, so the reaction gas is prevented from flowing back, and the service life of each sealing part of the pre-reactor is prolonged.

Description

technical field [0001] The invention relates to the chemical industry, in particular to an extension system of a reactor. Background technique [0002] The extension system is one of the main parts of the hydrogen fluoride pre-reactor, which satisfies the process of full stirring, kneading and propulsion of materials. [0003] The diameter of the existing extension system is small, the gas generated by the reaction is easily blocked, and the material is not good, which is very easy to cause corrosion; the stirring blade is stuck to the reactant during work, making it difficult to stir; the cylinder of the extension system is fixed on the reaction furnace. Due to the change of reaction temperature, the cylinder of the extension system will expand with heat and contract with cold, which will cause excessive stress inside the cylinder and cause deformation. In severe cases, it will cause seal failure; in addition, the inevitable vibration during stirring will also easily cause ...

AI Technical Summary

Problems solved by technology

[0003] The diameter of the existing extension system is small, the gas generated by the reaction is easily blocked, and the material is not good, which is very easy to cause corrosion; the stirring blade is stuck to the reactant during work, making it difficult to stir; the cylinder of the extension system is fixed on the reaction furnace. Due to the change of reaction temperature, the cylinder of the extension system will expand with heat and contract with cold, which will cause excessive stress inside the cylinder and cause deformation. In severe cases, it will cause seal failure; in addition, the inevitable vibration during stirring will also easily cause seal failure at the joint.

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