Construction method for spherical furnace top of industrial furnace

Abstract

The invention discloses a construction method for a spherical furnace top of an industrial furnace. Firstly, a steel furnace shell is mounted, the elevation and the like of steel supporting plates at the arch springing positions of a globe-roof are rechecked, a vertical control line is arranged from the center of the furnace bottom to the center of the furnace top in a drawn mode, a supporting frame is erected in a furnace body, and a round top plate is arranged in the center of the top; multiple vertical arc plates are then manufactured and are fixed on the round top plate and the supporting frame, and the elevation and the radius of each layers of refractory bricks are marked on the corresponding vertical arc plates; multiple horizontal arc plates are manufactured; the refractory bricks at the arch springing positions are constructed first, the refractory bricks are constructed upwards in sequence, the vertical radian and the elevation of the refractory bricks are controlled by using the vertical arc plates, and the horizontal radius of the refractory bricks is controlled by using the horizontal arc plates; one heat preservation brick layer is constructed after one certain layer of the refractory bricks are constructed, and the construction is carried out in the way until the construction of all the refractory brick layers and the construction of all the heat preservation brick layers are completed; a steel cover plate of the furnace top is mounted in a hanging mode to seal the steel furnace shell. The construction method for the spherical furnace top of the industrial furnace has the advantages of being economical in used material, simple in working procedure, low in cost and the like, and can ensure construction quality more easily.

Description

technical field [0001] The invention belongs to the field of masonry construction of industrial furnaces, and in particular relates to a construction method for masonry of a curved furnace roof. Background technique [0002] Fluidized fluidized furnace is the main equipment in metallurgical engineering to separate components of sulfur iron and pyrozinc ore powder. The furnace body is composed of a roasting chamber and a hearth. The roasting chamber is the part that is in contact with the air and tumbling reaction. The main function of the hearth is to supply high-pressure air from the lower hood. [0003] Dome masonry is the key and difficult point in the whole fluidized fluidized furnace masonry, and it is also the most difficult masonry process in the field of industrial furnace masonry. The quality of its masonry determines the service life of the furnace body. The previous construction technology is to make an earth formwork that is consistent with the curvature, elevat...

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Problems solved by technology

[0006] (2) It is necessary to use a large amount of soil, wood boards, cement and other materials to make soil tire molds. After demolition, there will be a lot of construction waste, and at the same time, the cleaning workload in the furnace is very large

[0007] (3) In order to ensure that the supported earth tire formwork is not deformed, a large amount of steel pipe materials should be used to reinforce the frame body in the furnace. The amount of material used is large, and the dense steel pipe frame is not conducive to the cleaning of earth tire formwork materials.

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