Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of anti-corrosion pouring material

A technology of castables and raw materials, applied in the field of anti-corrosion castables, can solve the problems of high thermal expansion rate and brittleness, spalling, falling blocks, cracks, harsh working environment, etc.

Active Publication Date: 2021-06-08
ANHUI RUITAI NEW MATERIALS TECH
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the introduction and continuous enlargement of the cement precalcining kiln, the core equipment in the cement industry, the production capacity of the kiln system has been continuously increased. Due to the continuous increase in the kiln speed and the increase in the load in the kiln, the performance of the refractory castable is also affected. New requirements are constantly being put forward, especially the working environment at the kiln mouth and the bend area of ​​the tertiary air duct is very harsh. Due to the high thermal expansion rate and brittleness of the currently used refractory castables, the wear resistance of the material is not very good. After being used for a period of time, there will be peeling, falling blocks, cracks, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] An anti-corrosion castable, its raw materials include by weight: 50 parts of corundum, 17 parts of alumina, 12 parts of modified apatite, 15.5 parts of silica fume, 6 parts of cement, 11 parts of ceramic fiber, 4 parts of wood calcium, boric acid 9.5 parts, 1 part graphite powder, 4.5 parts coagulant, 1 part sodium tripolyphosphate.

Embodiment 2

[0018] An anti-corrosion castable, its raw materials include by weight: 70 parts of corundum, 10 parts of alumina, 20 parts of modified apatite, 9 parts of silica fume, 13 parts of cement, 3 parts of ceramic fiber, 8.5 parts of wood calcium, boric acid 5 parts, graphite powder 4 parts, coagulant 2 parts, sodium tripolyphosphate 2 parts;

[0019] Wherein, the particle composition of the corundum is: 50% of particles with a particle size of 3-1mm, 30% of particles with a particle size of 1-0mm, and 20% of particles with a particle size of 200-300 mesh.

Embodiment 3

[0021] An anti-corrosion castable, its raw materials include by weight: 60 parts of corundum, 14 parts of alumina, 15 parts of modified apatite, 12 parts of silica fume, 9 parts of cement, 6 parts of ceramic fiber, 6 parts of wood calcium, boric acid 7 parts, 2.5 parts of graphite powder, 3.5 parts of coagulant, 1.5 parts of sodium tripolyphosphate;

[0022] Wherein, the particle composition of the corundum is as follows: particles with a particle size of 3-1mm account for 50%, particles with a particle size of 1-0mm account for 30%, and particles with a particle size of 200-300 mesh account for 20%;

[0023] The particle size of the alumina is 60um;

[0024] The modified apatite is prepared according to the following process: apatite and nano-silicon dioxide are mixed uniformly, ball milled first, and then heat treated to obtain the modified apatite;

[0025] The mass ratio of the apatite and nano silicon dioxide is 1:0.9;

[0026] In the operation of the ball milling proce...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a castable, and specifically discloses an anti-corrosion castable, the raw materials of which include by weight: 50-70 parts of corundum, 10-17 parts of alumina, 12-20 parts of modified apatite, and 9-15.5 parts of silica fume 6-13 parts of cement, 3-11 parts of ceramic fiber, 4-8.5 parts of wood calcium, 5-9.5 parts of boric acid, 1-4 parts of graphite powder, 2-4.5 parts of coagulant, 1-2 parts of sodium tripolyphosphate share. The invention has excellent anti-corrosion and wear-resistant properties.

Description

technical field [0001] The invention relates to a casting material, in particular to an anti-corrosion casting material. Background technique [0002] In recent years, with the introduction and continuous enlargement of the cement precalcining kiln, the core equipment in the cement industry, the production capacity of the kiln system has been continuously increased. Due to the continuous increase in the kiln speed and the increase in the load in the kiln, the performance of the refractory castable is also affected. Constantly put forward new requirements, especially the working environment at the kiln mouth and the bend area of ​​the tertiary air duct is very harsh. Due to the high thermal expansion rate and brittleness of the currently used refractory castables, the wear resistance of the material is not very good. After being used for a period of time, there will be peeling, falling blocks, cracks and other phenomena. Contents of the invention [0003] Based on the tech...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
CPCC04B35/66C04B2235/3212C04B2235/3217C04B2235/3409C04B2235/425C04B2235/447C04B2235/5216C04B2235/5427C04B2235/5436
Inventor 董舜杰蒋杰彭宗华周云霞竺翠云
Owner ANHUI RUITAI NEW MATERIALS TECH