Factorial construction process of refractory pouring layer of ethylene oxychloride chloroethylene cracking furnace

Abstract

The invention discloses a factorial construction process of a refractory pouring layer of an ethylene oxychloride chloroethylene cracking furnace. The factorial construction process of the refractorypouring layer of the ethylene oxychloride chloroethylene cracking furnace comprises the following steps: S1, all parts of a cracking furnace body are subjected to splitting and subentry construction;S2, manufactured furnace body accessories are subjected to partial item strength detection; S3, after construction of all the procedures is completed according to the construction plan, the parts aresent to a designated place to be installed and assembled, and the next procedure is handed over according to the plan after the previous procedure is completed; S4, the furnace bodies are concentratedin a prefabricated field to be stored, and sufficient hoisting positions are reserved on a construction site; S5, heat preservation and maintenance are performed on the refractory castable in winterconstruction, and heat preservation and maintenance measures are performed on the refractory castable of the furnace body in a centralized construction mode in the prefabricated field; S6, special reinforcing and protecting measures are taken on the furnace body that the refractory castable is completed; and S7, trial operation is performed on the protected cracking furnace body. In the construction process, economic benefits and social benefits are improved to a great extent.

Description

technical field [0001] The invention relates to the technical field of polyvinyl chloride production, in particular to a factory construction process for a refractory pouring layer of an ethylene oxychlorinated vinyl chloride cracking furnace. Background technique [0002] Most of our domestic ethylene plant process packages are purchased from foreign advanced process technology patents. Qingdao Haiwan Chemical's 400,000-ton / year ethylene oxychloride vinyl chloride cracking furnace device is the largest ethylene-based PVC production device in China, designed by France's Hirsch; the products produced by this device have a great demand at home and abroad; Furnace is a large energy-consuming unit of polyvinyl chloride plant, and reducing the energy consumption of cracking furnace is one of the important ways to reduce the production cost of polyvinyl chloride. The energy consumption of the cracking furnace depends to a large extent on the design and manufacturing level of the ...

AI Technical Summary

Problems solved by technology

[0003] The various ethylene plants introduced in China and the original ethylene plants are increasing rapidly, among which the construction of the cracking furnace body and refractory lining materials is a difficult part of lifting, and the owner requires a short construction period, and the personnel and machinery in the construction process Many costs are wasted, which greatly reduces economic and social benefits