Method of opening type roasting filling material filling

Abstract

The invention relates to a method of filling material filling, in particular to a method of opening type roasting filling material filling used for a carbon industry. An area with a standing seam in a fire way wall is filled by the filling material with a regular granularity. An area without a standing seam of the fire way wall on the upper portion of a material box is filled by a layer of fine filling materials and the fine filling materials are concentratedly to be operated in and out of a furnace. Convenience and feasibility of the operation are guaranteed. The method of the opening type roasting filling material filling has the advantages that the filling materials with different granularities are filled in the upper position and the lower position of the opening type roasting furnace material box, thus the good sealing effect of the material box is achieved. The fact that oil tar and volatile matter in a heating stage of a roasting product which smoothly enter the fire way to burn is guaranteed. A Cold air quantity leaking in the fire way from the material box is reduced. A pre-heating air quantity which enters the material box from the fire way after the roasting product enters the cooling state is reduced. Regular temperature rising speed in the heating stage and cooling speed in the cooling stage of the roasting product are guaranteed. Burning losses of the filling materials in the cooling stage of the roasting product are reduced.

Description

technical field [0001] The invention relates to a filling material filling method, in particular to an open roasting furnace filling material filling method used in the carbon industry, so that the open roasting furnace can strengthen the sealing performance of the roasting furnace during the filling process. Background technique [0002] The open roasting furnace adopts the method of indirect heating of high-temperature flue gas and roasted products to roast the roasted products at high temperature. The high-temperature flue gas transfers heat to the roasted products through the flue wall and the filling material. The roasted products are under negative pressure during the heating process. , the precipitated tar and volatile matter enter the fire channel for combustion through the pores in the filler and the vertical seam of the wall of the fire channel, and at the same time part of the air will also leak into the fire channel from the surface of the material box; while th...

AI Technical Summary

Problems solved by technology

1) During the heating stage of the roasted product, a large amount of cold air enters the fire channel, which reduces the temperature of the fire channel and affects the heating rate of the roasted product

2) In the cooling stage of the roasted product, a large amount of preheated air enters the material box and burns with the high-temperature filling material, which increases the burning loss of the filling material, and the roasted product cannot be cooled down in time

1) The tar cannot enter the fire channel for combustion smoothly, causing a large amount of fillers to stick to the surface of the roasted product and the surface of the wall material box of the fire channel, and the filling material agglomerates in the material box

2) Filling materials that are too fine are easily bonded in the vertical seam of the flue wall, and the blocked vertical seam is not conducive to the smooth entry of tar and volatiles into the flue for combustion

3) The finer the filler, the greater its thermal resistance effect, which affects the heating rate of the baked product

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