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Repairing method for refractory material layer of rotary kiln

A technology of refractory material and rotary kiln, applied in the field of rotary kiln, can solve the problems of small area shedding of refractory material layer, damage to the body of the rotary kiln, affecting the production of pellets, etc., so as to achieve the effect of improving the service life and improving the repair effect.

Inactive Publication Date: 2018-06-26
PANZHIHUA GANGCHENG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the production process, due to various reasons, the refractory material layer in the rotary kiln will fall off in a small area. If the refractory material is not repaired in time, the falling off will be accelerated, and the falling area (depth) will expand, causing damage to the rotary kiln body. In this way, the rotary kiln must Flame out and stop production for repair, affecting the production of pellets

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] When the rotary kiln is not turned off and production is stopped, reduce the temperature inside the rotary kiln body to 400°C, and directly repair the refractory material layer to be repaired by the slurry gunning machine. The repaired area is 0.1 square meters and it takes 15 minutes.

Embodiment 2

[0014] When the rotary kiln is not turned off and production is stopped, reduce the temperature inside the rotary kiln body to 420°C, and directly repair the refractory material layer to be repaired by the slurry gunning machine. The repaired area is 0.15 square meters and it takes 20 minutes.

Embodiment 3

[0016] When the rotary kiln is not turned off and production is stopped, reduce the temperature inside the rotary kiln body to 450°C, and directly repair the refractory material layer to be repaired by the slurry gunning machine. The repaired area is 0.2 square meters and it takes 24 minutes.

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PUM

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Abstract

The invention relates to the technical field of rotary kiln, in particular to a repairing method for a refractory material layer of a rotary kiln. The repairing method comprises the steps that temperature in a rotary kiln body is reduced under the condition that the rotary kiln is not shut down; and the refractory material layer to be repaired is directly repaired through a slurry gunning machine,wherein the gunning slurry can be quickly condensed under a high-temperature condition, so that the refractory material layer to be repaired can be repaired in time, and prevented the refractory material layer to be repaired from further falling off to affect the production of the rotary kiln. According to the repairing method for the refractory material layer of the rotary kiln, the repair effect is good, the production of the rotary kiln cannot be influenced, and the service life of the rotary kiln is prolonged.

Description

technical field [0001] The invention relates to the technical field of a rotary kiln, in particular to a method for repairing a refractory material layer of a rotary kiln. Background technique [0002] At present, in the pelletizing industry, rotary kilns are generally used to burn pellets. During the production process, due to various reasons, the refractory material layer in the rotary kiln will fall off in a small area. If the refractory material is not repaired in time, the falling off will be accelerated, and the falling area (depth) will expand, causing damage to the rotary kiln body. In this way, the rotary kiln must Flame out and stop production for repair, affecting the production of pellets. Contents of the invention [0003] The technical problem to be solved by the invention is to provide a method for repairing the refractory material layer of the rotary kiln with high timeliness and good effect. [0004] The method for repairing the refractory material layer...

Claims

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Application Information

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IPC IPC(8): F27D1/16
CPCF27D1/1642F27D2001/161
Inventor 王庆元文尚华
Owner PANZHIHUA GANGCHENG GROUP