CN1127768A

CN1127768A - Energy-saving corrosion-proof high-temp. ceramic paint

Info

Publication number: CN1127768A
Application number: CN 95110627
Authority: CN
Inventors: 曾庆琳; 周建元; 曾旭
Original assignee: 曾庆琳
Priority date: 1995-01-26
Filing date: 1995-01-26
Publication date: 1996-07-31

Abstract

The high-temp ceramic paint able to be sprayed onto surface of refractory bricks in high-temp combustion box for preventing corrosion and saving energy is prepared through grinding silicon carbide, zircon, bragite, alumina, kaolinite, and graphite, mixing them together, preparing adhesive with silica sol and aluminium dihydrogen phosphate, and mixing, and features low cost.

Description

Energy-saving anti-corrosive pyroceramic coating

The present invention is a kind of energy-saving anti-corrosive pyroceramic coating, be particularly suitable for applying or spary on the refractory brick surface of high-temperature burner hearth.

Be used to control the common High-temp. kiln of metalworking; its heat transfer efficiency is lower; the refractory brick that constitutes stove usually is destroyed in high temperature corrosion owing to having oxidation or reducing atmosphere source in the stove; work-ing life is very short; the refractory, energy saving and corrosion-resisting ceramics coating of domestic release in recent years (Chinese patent literature notification number CN1046517A) has bigger improvement to the high-temperature energy-saving coating material of international most advanced level, but still fails to put it over industrial because of cost is too high eventually.

A kind of cost is lower to be applied to the energy-saving anti-corrosive pyroceramic coating that metallurgical industry is produced widely thereby the purpose of this invention is to provide.

The present invention selects cheap starting material to make to constitute the two kinds of basic batching-mixes and the binding agent of energy-saving anti-corrosive pyroceramic coating for use, by 1: 2 or other weight ratio compatibilities that need, form energy-saving anti-corrosive pyroceramic coating through evenly mixing to stir, wherein mix is equipped with by following raw materials by weight, 300 order silicon carbide 20～30%, 400 order content are 60% zircon sand 10～25%, 300 order content are 60% sipylite powder 5～20%, 400 order aluminum oxide 3～15%, 325 order kaolin 2～18%, 400 order Graphite Powder 99s 3～20%, titanium dioxide 1～10%, 300 order silicon-dioxide 2～15%, chromic oxide 1～5%, ferric oxide 1～10%, calcium oxide 1～5%, 300 order zirconium dioxides 2～18%, cobalt oxide 1～5%, mix and pour grinding machine for grinding into promptly, described binding agent is equipped with by following raw materials by weight, and wherein pure aluminium silicate 0～20%, aluminum phosphate 0～12%, phosphoric acid 0～0.8%, water 0～1%, zirconium white 0～10%, aluminium sesquioxide 0～20%, aluminium dihydrogen phosphate 20～45%, silicon sol 5～15%.Above-mentioned mix and binding agent stir by 1: 2 weight ratio becomes energy-saving anti-corrosive pyroceramic coating of the present invention; because as above-mentioned adopted low-cost starting material and relatively the disclosed technology of CW1046517A simple many also more reliable complete processings; its cost is reduced; industrial applicibility is strengthened; become possibility thereby its industrialness is promoted, be particularly suitable for applying or spary is not corroded and save energy so as to the protection burner hearth cavity on the refractory brick surface of high-temperature burner hearth.Obtain the consistent favorable comment of trier after this energy-saving anti-corrosive pyroceramic coating trial production of the present invention, through verification technique advanced person repeatedly, the product maturation.Enumerating two embodiment below illustrates in detail:

Embodiment 1:

A: mix prescription: (unit: equal portions)

300 order silicon carbide 24

400 order content, 60% zircon sand 16

300 order content, 60% sipylite powder 6

400 order aluminum oxide 6

325 order kaolin 6

400 order Graphite Powder 99s 8

Titanium dioxide 6

300 order silicon-dioxide 9

Chromic oxide 3

Ferric oxide 6

Calcium oxide 2

300 order zirconium dioxides 6

Cobalt oxide 2

Respectively expect to mix to pour grinding in ball grinder into promptly with above-mentioned:

8, bonding mixture prescription (unit: equal portions)

Pure aluminium silicate 10

Aluminum phosphate 10

Phosphoric acid 0.4

Water 0.6

Zirconium white 8

Aluminium sesquioxide 10

Aluminium dihydrogen phosphate 45

Silicon sol 15

C, above-mentioned gained mix and binding agent are stirred by 1: 2 weight ratio is mixed successively;

Embodiment 2:

1: the mix prescription: (unit: equal portions)

300 order silicon carbide 29

400 order content, 60% zircon sand 20

300 order content, 60% sipylite powder 5

400 order aluminum oxide 6

325 order kaolin 4

400 order Graphite Powder 99s 6

Titanium dioxide 4

300 order silica 1s 0

Chromic oxide 4

Ferric oxide 4

Calcium oxide 2

300 order zirconium dioxides 4

Cobalt oxide 2

Respectively expect to mix to pour grinding in ball grinder into promptly with above-mentioned,

8: binder formula: (unit: equal portions

Aluminium dihydrogen phosphate 75

Silicon sol 25

C: above-mentioned gained mix and binding agent are stirred by 1: 2 weight ratio is mixed successively.

Claims

1, a kind of energy-saving anti-corrosive pyroceramic coating, stir mixed forming by mix and binding agent, it is characterized in that described mixing raw material is equipped with by following raw materials by weight, wherein 300 order silicon carbide, 20～30%, 400 order content are that 60% zircon sand 10～25%, 300 order content are 60% sipylite powder 5～20%, 400 order aluminum oxide 3～15%, 325 order kaolin, 2～18%, 400 order Graphite Powder 99s 3～20%, titanium dioxide 1～10%, 300 order silicon-dioxide 2～15%, chromic oxide 1～5%, ferric oxide 1～10%, calcium oxide 1～5%, 300 order zirconium dioxides 2～18%, cobalt oxide 1～5% mixes and pours grinding machine for grinding into promptly, and described binding agent is equipped with by following raw materials by weight, wherein pure aluminium silicate 0～20%, aluminum phosphate 0～12%, phosphoric acid 0～0.8%, water 0～1%, zirconium white 0～10%, aluminium sesquioxide 0～20%, phosphoric acid dioxy aluminium 20～45%, silicon sol 5～15%.

2, energy-saving anti-corrosive pyroceramic coating according to claim 1 is characterized in that described mix and binding agent stir by 1,2 weight ratio compatibility is mixed.