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Method for realizing sectional replacement of refractory materials of sleeve kiln and prolonging kiln service life

A sleeve kiln and refractory technology, which is used in furnaces, lining repair, lighting and heating equipment, etc., can solve problems such as destructive demolition, reduce time and cost, reduce refractory costs, and prolong kiln service.

Pending Publication Date: 2020-12-22
NANJING MEISHAN METALLURGY DEV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current refractory structure is an integral structure. When replacing the middle combustion chamber and the bottom of the upper inner cylinder, it must be demolished from top to bottom, and then built with new refractory materials from bottom to top.

Method used

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  • Method for realizing sectional replacement of refractory materials of sleeve kiln and prolonging kiln service life
  • Method for realizing sectional replacement of refractory materials of sleeve kiln and prolonging kiln service life
  • Method for realizing sectional replacement of refractory materials of sleeve kiln and prolonging kiln service life

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Embodiment 1

[0025] Embodiment 1: see figure 1 , a method for realizing segmental replacement of sleeve kiln refractory materials and prolonging kiln service, said method comprising the following steps:

[0026] Step 1: The refractory material needs to be replaced and removed in the kiln;

[0027] Step 2: Construction of the bottom structure of the upper inner cylinder;

[0028] Step 3: Construction of the bottom structure of the upper diversion cap;

[0029] Step 4: Improvement of the structure of the lower inner cylinder support brick circle:

[0030] Step 5: Improve construction of the pouring material structure at the bottom of the lower inner tube. At present, the refractory materials in the kiln have been used for about 5 years and cannot be used normally due to the damage of some refractory materials. The existing refractory structure determines that it is impossible to partially dismantle and replace the refractory materials in the kiln. They must be replaced all at once, which ...

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Abstract

The invention relates to a method for realizing sectional replacement of refractory materials of a sleeve kiln and prolonging the kiln service life. The method comprises the following steps of 1, dismounting of the refractory materials needing to be replaced in the kiln, 2, construction of a bottom structure of an upper inner barrel, 3, construction of a bottom structure of an upper flow guide cap, 4, improving of a brick holder ring structure of a lower inner barrel, and 5, improving construction of a bottom pouring material structure of the lower inner barrel. By means of the method, sectional replacement to the refractory materials in the kiln can be realized, each section is relatively independent, the refractory materials of other portions are not affected, the portions with the goodquality state can be repeatedly used, only the seriously-damaged portions are replaced, the refractory material repairing time is greatly shortened, the refractory material repairing cost is greatly reduced, and the overall refractory material replacing period is effectively prolonged.

Description

technical field [0001] The invention relates to a method, in particular to a method for realizing segmental replacement of refractory materials in a sleeve kiln and prolonging kiln service, and belongs to the field of industrial kilns. Background technique [0002] Annular sleeve kiln is a type of kiln commonly used to produce active lime at home and abroad at present. It consists of a circular sleeve inserted into two upper and lower sleeves to form an annular space as a heating and decomposition space for limestone roasting. 6 combustion chambers are staggered up and down around the outer sleeve to provide the required heat for the decomposition of limestone. The air supply in the kiln is adjusted by high-temperature fans, driving fans and other equipment, and the annular space in the sleeve kiln forms a pre-tropical zone, a counter-current calcination zone, Co-current calcination zone and cooling zone, so as to realize the complete calcination of lime. [0003] The refra...

Claims

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Application Information

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IPC IPC(8): F27D1/16
CPCF27D1/16F27D2001/1605
Inventor 鲍亮亮郭占军江书文
Owner NANJING MEISHAN METALLURGY DEV
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