CN105439585A - Anti-erosion refractory material - Google Patents
Anti-erosion refractory material Download PDFInfo
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- CN105439585A CN105439585A CN201510847485.2A CN201510847485A CN105439585A CN 105439585 A CN105439585 A CN 105439585A CN 201510847485 A CN201510847485 A CN 201510847485A CN 105439585 A CN105439585 A CN 105439585A
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- refractory material
- refractory materials
- perlite
- rutile
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Abstract
The invention discloses an anti-erosion refractory material. The anti-erosion refractory material is prepared from components as follows: quartz sand, perlite, rutile, magnesium oxide, calcium oxide and kaolin. The refractory material is prepared with a simple preparation process and is low in cost and suitable for large-scale popularization; quartz sand, perlite and rutile are subjected to a coke thermal reduction-nitridation process, so that the prepared refractory material has extremely high breaking strength and erosion resistance; kaolin is subjected to high-temperature calcination after being soaked in alkali, the structure is improved, and the service life of the refractory material is prolonged.
Description
Technical field
The present invention relates to technical field of refractory materials, particularly relate to a kind of anti-erosion refractory materials.
Background technology
Refractory materials is widely used in the industrial circles such as metallurgy, chemical industry, oil, machinofacture, silicate, power, and in metallurgical industry, consumption is maximum, accounts for 69% ~ 60% of ultimate production.Application to refractory is in the every field of the national economy such as iron and steel, non-ferrous metal, glass, cement, pottery, petrochemical industry, machinery, boiler, light industry, electric power, military project, be ensure above-mentioned industry production run and the requisite basic material of technical development, in hot industry production development, play irreplaceable vital role.Existing refractory materials, folding strength is low, and resistance to fouling is not high.
Summary of the invention
The object of this invention is to provide a kind of anti-erosion refractory materials.
The present invention is achieved through the following technical solutions:
A kind of anti-erosion refractory materials, is made up of following composition, quartz sand 90 parts, perlite 20 parts, rutile 10 parts, 15 parts, magnesium oxide, 15 parts, calcium oxide, 5 parts, kaolinite by weight.
Further, described quartz sand, perlite and rutile are through pre-treatment: by admixed together to quartz sand, perlite and rutile, at 1800 DEG C of temperature, add the coke that weight part is 10 parts, continue to pass into nitrogen, react 4 hours.
Further, described magnesium oxide and calcium oxide through 350 DEG C of high-temperature calcinations after 1 hour, grind into powder.
Further, described kaolinite adopts the soaking with sodium hydroxide of 5% concentration after 30 minutes, puts into 250 DEG C of temperature lower calcinations 30 minutes.
The invention has the beneficial effects as follows, compared with prior art:
Refractory materials of the present invention, manufacture craft is simple, and cost is low, is suitable for large-scale promotion; Refractory materials of the present invention is by carrying out coke thermal reduction nitriding process to quartz sand, perlite and rutile, the refractory materials made is made to have high folding strength and resistance to fouling, soak rear high-temperature calcination by carrying out alkali to kaolinite, improve structure, improve the life-span of refractory materials.
Embodiment
A kind of anti-erosion refractory materials, is made up of following composition, quartz sand 90 parts, perlite 20 parts, rutile 10 parts, 15 parts, magnesium oxide, 15 parts, calcium oxide, 5 parts, kaolinite by weight.
Further, described quartz sand, perlite and rutile are through pre-treatment: by admixed together to quartz sand, perlite and rutile, at 1800 DEG C of temperature, add the coke that weight part is 10 parts, continue to pass into nitrogen, react 4 hours.
Further, described magnesium oxide and calcium oxide through 350 DEG C of high-temperature calcinations after 1 hour, grind into powder.
Further, described kaolinite adopts the soaking with sodium hydroxide of 5% concentration after 30 minutes, puts into 250 DEG C of temperature lower calcinations 30 minutes.
The performance index of refractory materials of the present invention are:
| Index, unit | Refractory materials of the present invention |
| Volume density g/cm3 | 3.4 1 --> |
| Compressive strength MPa | 165-185 |
| Refractoriness under load DEG C | ＞1800 |
| Folding strength MPa | 12-15 |
| A damaged half (the 1000 DEG C of x water-cooleds) cycle index time in face, hot junction | 30 |
Table 1
As can be seen from Table 1, capabilities of refractory materials of the present invention is superior, applied widely.
Claims (4)
1. an anti-erosion refractory materials, is characterized in that, is made up by weight of following composition, quartz sand 90 parts, perlite 20 parts, rutile 10 parts, 15 parts, magnesium oxide, 15 parts, calcium oxide, 5 parts, kaolinite.
2. a kind of anti-erosion refractory materials according to claim 1, it is characterized in that, described quartz sand, perlite and rutile are through pre-treatment: by admixed together to quartz sand, perlite and rutile, at 1800 DEG C of temperature, add the coke that weight part is 10 parts, continue to pass into nitrogen, react 4 hours.
3. a kind of anti-erosion refractory materials according to claim 1, is characterized in that, described magnesium oxide and calcium oxide through 350 DEG C of high-temperature calcinations after 1 hour, grind into powder.
4. a kind of anti-erosion refractory materials according to claim 1, is characterized in that, described kaolinite adopts the soaking with sodium hydroxide of 5% concentration after 30 minutes, puts into 250 DEG C of temperature lower calcinations 30 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510847485.2A CN105439585A (en) | 2015-11-30 | 2015-11-30 | Anti-erosion refractory material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510847485.2A CN105439585A (en) | 2015-11-30 | 2015-11-30 | Anti-erosion refractory material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105439585A true CN105439585A (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510847485.2A Pending CN105439585A (en) | 2015-11-30 | 2015-11-30 | Anti-erosion refractory material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105439585A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1443031A1 (en) * | 2001-09-26 | 2004-08-04 | Shinagawa Refractories Co., Ltd. | Thermally insulating coating material for refractory containing carbon |
| CN103319186A (en) * | 2013-05-24 | 2013-09-25 | 霍山县新裕炉窑模具有限公司 | Aluminum melting furnace cast refractory material and preparation method thereof |
-
2015
- 2015-11-30 CN CN201510847485.2A patent/CN105439585A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1443031A1 (en) * | 2001-09-26 | 2004-08-04 | Shinagawa Refractories Co., Ltd. | Thermally insulating coating material for refractory containing carbon |
| CN103319186A (en) * | 2013-05-24 | 2013-09-25 | 霍山县新裕炉窑模具有限公司 | Aluminum melting furnace cast refractory material and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160330 |
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| RJ01 | Rejection of invention patent application after publication |