Grouting construction method of coke oven hot roof mud

Abstract

The invention relates to a grouting construction method of coke oven hot roof mud. The construction method comprises the following steps: (1) assembling a mud fabrication system; (2) preparing the mud; (3) continuing to stew the mud in a second mud mixer, and separating out large-particle impurities, so as to form final casting mud. The casting mud is directly conveyed to the required part of the coke oven hot roof through a second mud delivery pump and a mud pressure uniform distributor, and directly grouted into a coke oven gap, and the coke oven hot roof mud is grouted and constructed. The construction method disclosed by the invention is simple, low in cost, high in efficiency, free of pollution, and good in construction mud performance, and the labor intensity of a worker is effectively reduced.

Description

technical field [0001] The invention belongs to the field of grouting construction, in particular to a construction method for grouting grouting on the hot top of a coke oven. Background technique [0002] The grouting of the coke oven hot roof and protective plate is an important work of the coke oven. The materials used for the masonry of the combustion chamber of a large modern coke oven are silica bricks, and the materials used in the roof area are clay bricks, insulation bricks, and coke oven cylinders. Bricks, etc., the coke oven is built from the cold state until the oven is heated to 600-800 ° C, and the coke oven expands outward along the direction of the combustion chamber. Since the expansion of silica bricks is greater than that of other refractory bricks, the temperature of the combustion chamber is also much higher than that of the furnace roof. The temperature in the area will inevitably produce multiple longitudinal cracks in the furnace top area. In order to...

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Problems solved by technology

Furnace roof is not well sealed, resulting in large heat loss and leakage of volatile substances. In addition, gas may leak directly to the combustion system without the recovery system, causing smoke from the chimney. The result is a waste of energy and environmental protection is not up to standard. The existing grouting construction The method has the following problems in the mud mixing production and pouring: the pouring adopts the multi-way pipe made of steel pipes, the multi-way pipes are connected at right angles, the positions of the main pipe and the branch pipes are different, and the pressure of the branch pipes is different. The amount of mud delivery varies, and because the pipelines are connected at right angles, the mud delivery resistance is relatively large, and there is a dead angle, which is easy to block the pipeline. In addition, the mixer in the prior art will encounter the following problems when generating mud: 1. Efficiency Low, high labor intensity of workers, low degree of mechanization; 2, pollute the environment, especially when the fire clay powder is not fully dissolved in water, under the action of the mixer blade, the fire clay dust swings out into the air, polluting the air; 3, The performance of the mud is poor, especially there may be large particles of impurities in the mud stuck in a certain part of the pouring gap, resulting in the situation that the mud cannot be poured below this position, resulting in poor sealing effect

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