Stable kiln liner of asphalt rotary kiln

A rotary kiln, stable technology, applied in the direction of rotary drum furnace, furnace type, furnace, etc., can solve the problems of unsatisfactory long service life, uncertain maintenance time, difficult disassembly, etc.

Inactive Publication Date: 2013-01-02
SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, it is unfavorable for the maintenance of the rotary kiln after normal operation. The disassembly of the castable during maintenance will be restricted by the site of the rotary kiln, resulting in difficulty in disassembly and uncertain maintenance time. ...

Method used

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  • Stable kiln liner of asphalt rotary kiln
  • Stable kiln liner of asphalt rotary kiln

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] like figure 1 Shown: a stable asphalt rotary kiln kiln lining, which is divided into the kiln head cover to the transition section and the transition section to the kiln tail, the specific description is as follows:

[0018] Kiln head cover - transition section

[0019] See figure 1 The kiln lining of the rotary kiln adopts four fixed prefabricated blocks 1 distributed at 90° on the circumference, and adopts the welding form. Each fixed prefabricated block 1 adopts a socket design to ensure that it is anchored on the shell, so that each fixed prefabricated block and the kiln body steel plate form a whole. Build 8 prefabricated bricks 2 of about 20kg in the middle of every two fixed prefabricated blocks.

[0020] The advantages of this structure over double-layer castables are:

[0021] (1) Due to the fixed prefabricated blocks, the whole ring of bricks is divided into 4 parts, and the possible concentrated joints are 1 / 4 of the original ones, which greatly reduces t...

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PUM

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Abstract

The invention relates to an asphalt rotary kiln, in particular to a stable kiln liner of an asphalt rotary kiln. The stable kiln liner is divided into a part from a kiln front cover to a transition section and a part from the transition section to a kiln end. A liner of the part from the kiln front cover to the transition section adopts a double-layer precast block brick mode, a heat preservation layer is made of light pouring materials, and a working layer is made of ultra-low cement combined with high-purity corundum-mullite pouring materials. The kiln liner adopts four fixed precast blocks which are distributed at 360 degrees, and a precast block brick is built between every two fixed precast blocks in a welding mode. The part from the transition section to the kiln end adopts a mode combining double-layer precast block bricks and pouring materials, a heat preservation layer is made of light pouring materials, a working layer is made of ultra-low cement combined with high-purity corundum-mullite pouring materials, and the kiln liner adopts a clip flower mode with nine precast blocks and nine pouring materials. By means of the kiln liner, structural stability of brickworks of the kiln liner is ensured, pulverization of the heat preservation layers in the production process is avoided, and accordingly, service life of the kiln liner is prolonged.

Description

technical field [0001] The invention relates to an asphalt rotary kiln, in particular to a kiln lining of the asphalt rotary kiln. Background technique [0002] The working characteristic of the rotary kiln is that the lining body in the kiln rotates with the kiln shell at high temperature, and is in a long-term vibrating state, and at the same time, it also bears the wear and impact of the charge. Therefore, according to the production characteristics and process conditions of the rotary kiln, it is very important to select the refractory material of the appropriate material and the reasonable lining structure for the production of the rotary kiln. [0003] At present, the kiln lining of asphalt coke rotary kilns at home and abroad adopts two structural forms, one is a brick structure, and the other is a castable castable structure. At present, after the domestic pitch coke rotary kiln produces needle coke products, the pitch coke rotary kiln produces pitch coke and needle...

Claims

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Application Information

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IPC IPC(8): F27B7/28
Inventor 宋飞沈伟国廖国保周超培励军
Owner SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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