Method for lining sulfur-to-acid converter with thermal insulation material

Abstract

The invention discloses a method for lining a sulfur-to-acid converter with a thermal insulation material. The method comprises the steps of manufacturing of a thermal insulation framework, bundling and fixing treatment, primary reinforcement treatment, welding treatment, bonding reinforcement treatment and secondary reinforcement treatment, and the sulfur-to-acid converter lined with the thermalinsulation material is obtained. According to the technical scheme of lining the sulfur-to-acid converter with the thermal insulation material, the loss of the temperature in the converter can be effectively and fundamentally restrained, the continuous constant time of the internal temperature of the sulfur-to-acid converter in a shutdown state can be effectively prolonged to 48 hours, the duration of the thermal insulation effect is prolonged by about 40 hours compared with the duration of the thermal insulation effect of an existing converter, and the double protection is achieved by combining the thermal insulation outside the sulfur-to-acid converter, so that the strong guarantee is provided for the time of management such as maintenance, overhaul and pipeline fault treatment of the sulfur-to-acid converter, the repair rate of equipment faults, pipeline faults and the like is reduced, the management work such as maintenance, overhaul and pipeline fault treatment of the converter isreduced, the unnecessary consumption of manpower and material resources is reduced, the starting rate of the sulfur-to-acid converter is greatly improved, and the economic benefit is improved.

Description

technical field [0001] The invention belongs to the technical field of converter construction, and in particular relates to a method for lining an insulating material in a sulfur acid converter. Background technique [0002] Compared with pyrite acid production, sulfur acid production has the characteristics of fewer procedures, short process, process return, high sulfur utilization rate, more by-product steam, low power consumption, and less "three wastes". Therefore, sulfur acid production is a A very competitive method of making acid, which has been rapidly developed in China. However, after many years of practical operation in domestic sulfur acid production, a series of problems have been exposed one after another. The core equipment of sulfur acid production is the converter, and the temperature control of the converter is the prerequisite for the normal start-up of the whole device. After the sulfur acid conversion converter has been in operation for a long time, the...

AI Technical Summary

Problems solved by technology

At present, the existing technology is to use the form of external heat preservation of the equipment to insulate it to ensure the constant temperature of the sulfur acid converter, but the root of the heat preservation has not been effectively guaranteed. Under normal circumstances, there is no problem in ensuring the constant conversion temperature. In case of an emergency, the processing equipment is shut down, and the heat preservation duration can only be maintained at about 8 hours when the pipeline is faulty or leaked.

Therefore, the form of external heat preservation of the equipment leads to no strong technical support for the heat preservation effect of the internal temperature of the converter, so that the duration of heat preservation of the converter cannot be effectively controlled for a long time