Small constant pressure coking device and constant pressure coking method

Abstract

The invention relates to a small constant pressure coking device and a constant pressure coking method, comprising an experimental coke oven, a temperature controller, a constant pressure system and a control system; The system consists of a hydraulic pump, a buffer cylinder and a moving platen. The push rod of the buffer cylinder is connected to the moving platen through the first hollow tube and can drive it to move up and down in the carbonization chamber. The bottom end of the first hollow tube passes through the moving platen and connects to the carbonization chamber for coking. Side internal space; a temperature sensor is installed in the carbonization chamber, a displacement sensor is installed on the top of the experimental coke oven, and an oil pressure regulator is installed on the hydraulic pipeline between the hydraulic pump and the buffer cylinder. The present invention can make coke under constant pressure conditions, so as to obtain the corresponding relationship between pressure and coke quality, or conduct comparative research on the coke quality of different coal types under the same pressure conditions, which is of great guiding significance for coal blending coking and coking mechanism research. To achieve the purpose of optimizing the coking production process, saving coking equipment investment and realizing the effective utilization of resources.

Description

technical field [0001] The invention relates to the technical field of laboratory coking, in particular to a laboratory single-hole small constant-pressure coking device and a constant-pressure coking method. Background technique [0002] my country is a big coke production, consumption and export country. Since the early 1990s, the output and export volume have ranked first in the world. The largest consumer of coke is the iron and steel industry, accounting for more than 80%, mainly used in blast furnace ironmaking. Coke is mainly used as heat source, reducing agent, carburizing agent and loose skeleton in blast furnace ironmaking process. With the enlargement of blast furnaces and the development and application of technologies such as oxygen-enriched pulverized coal injection (the largest domestic coal injection rate can reach 261kg / t pig iron), the requirements for the quality of coke produced by blast furnaces, especially the thermal performance of coke, are getting hig...

AI Technical Summary

Problems solved by technology

The volume of the coking chamber of the coke oven changes with the movement of the furnace wall, and the expansion pressure changes continuously during the coking process, which can be monitored in real time, but constant pressure coking cannot be carried out

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