Ceramic anchoring nail for castable liner

A castable and anchoring nail technology, applied in the direction of lining support, etc., can solve the problems of high temperature on the outer wall of the equipment, easy to be corroded, cracking of the castable lining, etc., and achieve the effects of reducing heat dissipation loss, investment, and temperature

Active Publication Date: 2012-09-19
北京同创科耐科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Easily corroded;
[0005] 2. The strength changes greatly with temperature, so it is limited by the use temperature. The higher the use temperature, the higher the material and the higher the cost;
[0006] 3. The thermal conductivity is relatively large, and the arrangement of the anchor nails on the equipment

Method used

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  • Ceramic anchoring nail for castable liner
  • Ceramic anchoring nail for castable liner
  • Ceramic anchoring nail for castable liner

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] Such as image 3 , 4 As shown in and 5, a ceramic anchoring nail for castable lining according to the present invention includes a base nail 1 and a pair of nail bodies, and the base nail 1 is in the shape of a "V". Such as figure 1 , 2 As shown, the pair of nail bodies are respectively fixedly connected with the two ends of the base nail 1 in a "V" shape.

[0028] The nail body of the present invention includes long nails 3 or short nails 2, and Al 2 o 3 Content greater than 90%, ZrO 2 It is sintered from a toughened composite ceramic material with a content greater than 3.7%. The cross-section of the nail body is circular, and the basic geometric shape adopted is cylindrical. In order to enhance the rigidity of the nail body and improve the adhesion of the lining, the following design is adopted:

[0029] 1. A total of 4 ribs are set at a ci...

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Abstract

The invention discloses a ceramic anchoring nail for a castable liner. A nail body of the anchoring nail is formed by sintering a composite toughening ceramic material comprising 90%-96.3% of Al2O3 and 3.7%-10% of ZrO2, and a base nail is made of metal. The base nail is welded on a wall plate of equipment and is in threaded connection with a ceramic nail body. The characteristics that the ceramic material cannot be corroded and can resist high temperature, the strength of the ceramic material is hardly changed along with change of temperature, and the heat conductivity factor of the ceramic material is greatly lower than that of metal are sufficiently utilized, so that the temperature of the outer wall of the equipment is obviously reduced on the premise of not reducing the strength of an anchoring part and the adhesive force of the liner, the heat dissipation loss of the equipment is reduced effectively, and the purpose of saving energy is achieved. Besides, the utilization quantity of the metal is greatly saved, and the investment cost of the equipment is lowered.

Description

technical field [0001] The invention relates to a ceramic anchor nail used for castable lining. [0002] Background technique [0003] Traditional anchor nails used for castable linings are all made of metal. Due to the inherent properties of metal, metal anchors have the following disadvantages: [0004] 1. Easily corroded; [0005] 2. The strength changes greatly with temperature, so it is limited by the use temperature. The higher the use temperature, the higher the material and the higher the cost; [0006] 3. The thermal conductivity is relatively large, and the arrangement of the anchor nails on the equipment wall is relatively dense, so the temperature of the outer wall of the equipment is relatively high; [0007] 4. The coefficient of thermal expansion is much larger than that of castables. When used in a high temperature state, if there is no treatment in advance, there is a possibility that the castable lining will be cracked. [0008] Contents of the inven...

Claims

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Application Information

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IPC IPC(8): F27D1/14C04B35/10
Inventor 艾国孙毅冯永生张伟乾徐德收厉亚宁张晓筠蔡建光王学增王江涛孙原田盖建温化冰
Owner 北京同创科耐科技有限公司
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