Sandwich type coke oven door prefabricated part and preparation method thereof

Abstract

The invention provides a sandwich type coke oven door prefabricated part and a preparation method thereof. The sandwich type coke oven door prefabricated part comprises a thermal insulation inner lining and a working outer lining, wherein the working outer lining wraps the thermal insulation inner lining to form a sandwich structure. According to the sandwich type coke oven door prefabricated part, the problem that various coke oven door lining bricks are inconsistent at present is solved, a thermal insulation lining can be effectively prevented from being damaged in the transportation and installation processes, the weight of the oven door prefabricated part and a whole oven door is reduced, the thermal insulation performance of the coke oven door is improved, and the heat loss in a carbonization chamber is reduced; and the maturity of temperature increasing coke heads on the two sides of machine coke is improved, the coking time is shortened, the coke quality is improved while energyis saved, the prefabricated part is firmly combined with the furnace door shell, and the service life is longer.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a sandwich-type coke oven door prefabricated part and a preparation method thereof. Background technique [0002] The coke oven is the basic furnace for coking, which provides important coke and gas for the metallurgical industry. The working temperature is 900-1100°C. The coke oven door refers to the auxiliary equipment of the coke oven that opens and closes the mouths at both ends of the coke oven carbonization chamber. When the furnace door is closed, the carbonization chamber is isolated from the atmosphere. When the door is opened, the coke pusher can push out coke. In order to protect the furnace door and reduce the heat loss of the carbonization chamber, the side of the coke oven door facing the carbonization chamber is built with refractory lining bricks or lining bricks are inlaid on the furnace door frame shell, and heat insulating materials are filled betw...

AI Technical Summary

Problems solved by technology

However, while the improvement of the material of the furnace door lining brick has greatly increased the service life, the problem of energy saving and heat preservation of the coke oven door has become more and more prominent

That is to say, heavy refractory materials can strengthen the strength of lining bricks and prolong life, but their high thermal conductivity makes the furnace door poor in insulation, which not only affects the energy saving effect, but also reduces the temperature on both sides of the machine coke, resulting in low maturity of the coke head , long coking time will affect the quality of coke, and will lead to a substantial increase in the quality of furnace door lining bricks, increasing the difficulty of installation and transportation; although light materials have the advantages of environmental protection and energy saving, their strength is not high, and they are easy to transport, install and use. The service life is not long due to damage, and at the same time, its porosity is very large, and coke and its coking products are more likely to penetrate into the lining brick and erode the lining brick

That is to say, it is difficult to reconcile problems such as prolonging life, energy saving and heat preservation, and being convenient for installation and transportation. The coke oven door lining bricks provided in the prior art often take care of one thing and lose another

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