Building structure and process of air inlet and conical section of combustion chamber of suspension furnace

Abstract

The invention provides a building structure and a process of an air inlet and a conical section of a combustion chamber of a suspension furnace. The combustion chamber of the suspension furnace comprises a large straight section, the conical section, a small straight section, the air inlet and a fire observing hole, wherein a tuyere comprises a prefabricated pouring inclined section and prefabricated blocks, a ventilation hole is reserved in the prefabricated pouring inclined section, the prefabricated blocks are a plurality of cuboid prefabricated blocks, ventilation holes are reserved in theprefabricated blocks, the ventilation holes in the prefabricated blocks are coaxial with the ventilation hole in the prefabricated pouring inclined section and are equal in diameter; and the conicalsection is formed by sequentially building working layer mullite silicon carbide bricks and heat preservation layer mullite and light-gathering bricks from inside to outside; and the surfaces of the working layer mullite silicon carbide bricks and the side surfaces of the heat preservation layer mullite light-gathering bricks are in a parallelogram shape. According to the building structure, the construction process of a working layer and a heat preservation layer of the combustion chamber of the suspension furnace can be realized, the construction process is simple, calcination is not needed,energy is saved, the construction strength is high, the structure is firm and durable, and the service life is long. In the use process, the bricks are directly calcined, the bricks are expanded to fill brick seams, and the bricks do not need to be calcined and dried in advance.

Description

Technical field [0001] The invention relates to the application field of refractory materials, in particular to a masonry structure and a process for an air inlet and a tapered section of a combustion chamber of a suspension furnace. Background technique [0002] The working position of the combustion chamber of the suspension furnace is generally arranged horizontally and vertically communicates with the working chamber arranged vertically. At present, in the manufacturing process of the combustion chamber of the suspension furnace, the insulation layer, working layer and tuyere of the inner furnace wall are all integrally poured. This processing method requires the furnace body to be installed vertically in sections for pouring. After pouring is completed, Carry out calcination and reinforcement, and then turn each section of the furnace body to the horizontal position for assembly. The processing technology is very complicated, and the processing is difficult. Since the pouri...

AI Technical Summary

Problems solved by technology

However, due to the irregular structure of the tuyeres, and the conical section cannot be built with conventional refractory bricks, there are relatively large technical problems to be solved

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