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Processing method for wall crack of anode roaster

A technology of anode roasting furnace and treatment method, which is applied in the direction of furnace, furnace components, and process efficiency improvement, can solve the problems such as difficulty in guaranteeing quality of poured concrete, high engineering cost, construction difficulty, etc. simple method effect

Inactive Publication Date: 2008-06-25
GUIYANG AL-MG DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, the wall is reinforced, but the construction period is long and the project cost is high, especially the construction is very difficult (limited to the plane size required by the furnace body, the wall is only allowed to be thicker by 50mm, and it is difficult to guarantee the quality of pouring concrete)

Method used

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Experimental program
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Embodiment Construction

[0008] Embodiment of the present invention: Before the caulking construction, the laitance, dust and other sundries in the seam must be removed. The method of cleaning is to use a fan to blow off the dust in the seam; when the temperature is higher than 10°C, it is advisable to wash it with pressure water first, and then use a fan to dry the inner wall of the seam. 24 hours after the completion, apply cold primer oil on both sides of the crack with a width of 60mm and inside the crack. The cold primer oil is floating oil on the surface of the modified epoxy cement. Carry out caulking every 12 hours after completion. Depending on the width of the crack, use a putty knife or a hacksaw blade as a tool, first inject a small amount of glue on the inner wall of the crack, use a knife to repeatedly scrape and glue the two walls of the crack, then fill the entire crack, and use a putty knife and a saw blade to compact and remove air. Finally, pour the surface of the joint so that the...

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Abstract

A method for processing crack on furnace wall of anode roasting furnace includes removing off all varia in cracks first, then coating cold body oil on two sides of crack and at inside of crack, finally carrying out filleting with modified epoxy cement at time of 12 hours after cold body oil is coated.

Description

Technical field: [0001] The invention relates to a treatment method for cracks in the furnace wall of an electrolytic aluminum roasting furnace. technical background: [0002] The anode roasting furnace in the roasting workshop of the electrolytic aluminum plant is surrounded by cast-in-place reinforced concrete walls. During normal production, the temperature in the furnace exceeds 1000°C, and the temperature of the concrete walls exceeds 200°C. When the roasted products are out of the oven, the overhaul stops production, or the furnace body is dismantled for technical transformation, the "body temperature" of the furnace wall drops in a short time, and the cold shrinkage under the action of temperature often causes relatively regular vertical cracks in the concrete wall, resulting in Water seeps through the walls. At present, the solution to this problem is to thicken the wall, that is, to add a steel mesh outside the original wall, to support the formwork, and to pour 50...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D1/00C04B35/64C25C3/12
CPCY02P10/25
Inventor 袁赤王绍华
Owner GUIYANG AL-MG DESIGN & RES INST