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Structure and method for removing crusts in rotary kiln

A rotary kiln and skinning technology, which is applied in the direction of rotary drum furnace, descaling device, lighting and heating equipment, etc., can solve the problems of smaller internal space, long kiln shutdown time, and large enterprise losses, so as to reduce losses and shorten The effect of kiln shutdown time and improvement of cleaning speed

Inactive Publication Date: 2019-10-08
江西银杉白水泥股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When producing cement clinker, the cement clinker is finally discharged from the equipment through the rotary kiln; when the cement clinker passes through the rotary kiln body, it is easy to appear skinning phenomenon, that is, the clinker adheres to the inner surface of the rotary kiln and condenses; normal formation The skin phenomenon will produce a crust with a thickness of about 50mm. At this time, the crust will not affect the normal operation of the rotary kiln; when the thickness of the crust reaches a thickness of about 200mm, it is an abnormal crust phenomenon at this time. If the crust is too thick, the internal space becomes smaller and the rotary kiln cannot work normally
[0003] The current method for the production of cement clinker is to wait for the rotary kiln to cool after stopping the kiln, and then manually remove the crust; while the temperature of the rotary kiln is above 1000 degrees, it takes two or three hours to wait for the rotary kiln to cool. Days to remove the crust, and the kiln will be shut down for a long time, resulting in excessive losses to the enterprise

Method used

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  • Structure and method for removing crusts in rotary kiln
  • Structure and method for removing crusts in rotary kiln

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Experimental program
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Effect test

Embodiment 1

[0027] A kind of method for removing crust in the rotary kiln is provided in the present embodiment, comprises the following steps:

[0028] A. When the crust in the rotary kiln body 1 is serious, stop the kiln for treatment;

[0029] B. Open the sealing cover 4 of the pipe body 2 without waiting for the rotary kiln body 1 to cool down, and open the pipe body 2 through the air pick;

[0030] C. Use a pick to break and clean the internal crust through the pipe body 2, so as to remove the crust;

[0031] D. After completing the skin removal operation, fill the pipe body 2 with filler 3, close the sealing cover 4, and run the rotary kiln body 1.

[0032] In step D, before the filler 3 is filled in the tube body 2, a plug that can block the tube body 2 can be inserted into the tube body 2 first, and then the filler 3 is passed inward to prevent the filler from falling into the tube body 2. Rotary kiln body 1.

Embodiment 2

[0034] A kind of method for removing crust in the rotary kiln is provided in the present embodiment, comprises the following steps:

[0035] A. When the crust in the rotary kiln body 1 is serious, stop the kiln for treatment;

[0036] B. Open the sealing cover 4 of the pipe body 2 without waiting for the rotary kiln body 1 to cool down, and open the pipe body 2 through the air pick;

[0037] C. Spray water on the inside through the pipe body 2, and the skin with a high temperature of about 1000 degrees will explode immediately when it meets water, so as to achieve the effect of removing the skin;

[0038] D. After completing the skin removal operation, fill the pipe body 2 with filler 3, close the sealing cover 4, and run the rotary kiln body 1.

[0039] In step D, before the filler 3 is filled in the tube body 2, a plug that can block the tube body 2 can be inserted into the tube body 2 first, and then the filler 3 is passed inward to prevent the filler from falling into the...

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Abstract

The invention discloses a structure for removing crusts in a rotary kiln. The structure comprises a rotary kiln body. The central part of the rotary kiln body is provided with a through hole around the axis, a high-temperature-resistant pipe body is fixedly inserted into the through hole, and the two ends of the pipe body are located on the inner side and the outer side of the rotary kiln body correspondingly; the inside of the pipe body is filled with filler, and the end, located on the outer side of the rotary kiln body, of the pipe body is provided with a sealing cover. The invention also provides a method for removing the crusts in the rotary kiln. The method includes the following steps that A, after the crusts in the rotary kiln are severe, the kiln is stopped for treatment; B, an operator does not need to wait for cooling of the rotary kiln body, the sealing cover of the pipe body is opened, and an air pick is used for making the pipe body be through; C, the air pick is used forcrushing and removing the inside crusts through the pipe body; and D, after crust removal operation is completed, the pipe body is filled with the filler again, the sealing cover is closed, and the rotary kiln runs. The aim is to provide the structure and method for removing the crusts in the rotary kiln, the kiln stopping time is shortened, and the loss is reduced.

Description

technical field [0001] The invention belongs to the field of cement clinker production, and in particular relates to a structure and method for removing crust in a rotary kiln. Background technique [0002] When producing cement clinker, the cement clinker is finally discharged from the equipment through the rotary kiln; when the cement clinker passes through the rotary kiln body, it is easy to appear skinning phenomenon, that is, the clinker adheres to the inner surface of the rotary kiln and condenses; normal formation The skin phenomenon will produce a crust with a thickness of about 50mm. At this time, the crust will not affect the normal operation of the rotary kiln; when the thickness of the crust reaches a thickness of about 200mm, it is an abnormal crust phenomenon at this time. If the crust is too thick, the internal space becomes smaller and the rotary kiln cannot work normally. [0003] The current method for the production of cement clinker is to wait for the ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B7/22F27D25/00
CPCF27B7/22F27D25/00
Inventor 曾斯维朱杰曾嵘吴帅
Owner 江西银杉白水泥股份有限公司