CN201593025U - Surface-finished magnesia or MgO-CaO clinker - Google Patents
Surface-finished magnesia or MgO-CaO clinker Download PDFInfo
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- CN201593025U CN201593025U CN200920297125XU CN200920297125U CN201593025U CN 201593025 U CN201593025 U CN 201593025U CN 200920297125X U CN200920297125X U CN 200920297125XU CN 200920297125 U CN200920297125 U CN 200920297125U CN 201593025 U CN201593025 U CN 201593025U
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Abstract
The utility model relates to the aggregate of a magnesium fire-proof precast piece, particularly to surface-finished magnesia or MgO-CaO clinker, of which the outer surface is clad by a polythene layer, and the thickness ranges from 0.05 mm to 0.2 mm. The heated and fused polythene is adhered to the surface of the magnesia or the MgO-CaO clinker to form a polyethylene film, the diameter of the magnesia or the MgO-CaO clinker ranges from 1 mm to 8 mm, and the shape is spherical, near-spherical, ellipsoidal, or near-ellipsoidal. While keeping the original performance, the product has hydration resistance, low manufacturing cost, stable property and long saving time, and mainly serves as the aggregate of the magnesium fire-proof precast piece, thereby improving the finished product ratio of the magnesium fire-proof precast products, enhancing the hydration resistance of the magnesia or the MgO-CaO clinker at lower cost, and further improving the product performance of the magnesium precast piece; moreover, the product has simple structure, lower cost, extensive application, and easy popularization.
Description
One, technical field:
The utility model relates to a kind of aggregate of magnesia fireproof prefabricated component, particularly relates to a kind of surface treated magnesia or calcium magnesia sand.
Two, background technology:
Magnesia claims magnesite clinker again, is to form through high-temperature calcination by magnesite, water magnesium ore deposit or the magnesium hydroxide that from seawater, extracts, and be magnesia raw materials such as magnesite reach the product of sintering degree through pyroprocessing general designation.Once calcining or two step calcining procesies with high temperature equipment such as shaft furnace, rotary kilns, is that the magnesia that raw material is fired is called magnesite clinker with the magnisite.With magnesite etc. is raw material reaches molten state cooling back formation through arc melting the electrosmelted magnesite clinker that is called, be with the selected natural wagnerite of special A level or high-purity magnesia unslacked particle, fusion makes in electric arc furnace, this product has advantages such as purity height, crystal grain are big, compact structure, the strong material of slag resistance, good thermal shock stability, being a kind of excellent high-temperature insulating material, also is the important source material of making high-grade magnesia brick, magnesia carbon brick and unshape refractory.
Highly-purity magnesite is to select for use natural superfine giobertite flotation to purify, forms through light-burned, fine grinding, pressure ball, the calcining of ultrahigh-temperature oil shaft furnace, and be the high quality raw material of brickmaking, indefinite refractory materials.Middle-grade magnesia is to be that 97% light calcined magnesia is a raw material with MgO content, forms through explained hereafter such as pressure ball, high temperature vertical kiln calcinings, and product sintering degree is good, and compact crystallization is high quality raw material of producing middle-grade magnesia fireproof goods.
As seen, magnesia is one of most important material in the refractory materials, is used to make various magnesia bricks, magnesia alumina brick, ramming mass and mending material etc., and it is more to contain impurity, purposes such as is used at the bottom of the making steel melting furnace.
Calcium magnesia sand generally is used to make magnesia-calcium brick or indefinite form material, wherein contained periclasite and square calcium stone uniform distribution, the periclasite side of surrounding calcium stone.This material at high temperature performance, hydration resistance are better, and the ability of the low iron of opposing, low basicity slag is strong.
At present magnesia or calcium magnesia sand product can't waterproof, if can waterproof through surface treatment, can improve its application performance greatly.
Three, summary of the invention:
The technical problems to be solved in the utility model: overcome defective of the prior art, a kind of magnesia or calcium magnesia sand through surface treatment energy waterproof is provided, this product structure is simple, good water-proof effect.
The technical solution of the utility model:
A kind of surface treated magnesia or calcium magnesia sand, its outside surface is coated with polyethylene layer.
Described polyethylene layer thickness is 0.05～0.2mm.
Described polyethylene layer is with after the polyethylene heat fused, is adhered to magnesia or calcium magnesia sand surface then, forms polyethylene film.
Described magnesia is highly-purity magnesite, middle-grade magnesia or electrosmelted magnesite clinker.
The diameter of described magnesia or calcium magnesia sand is 1～8mm, described magnesia or calcium magnesia sand be shaped as sphere, almost spherical, elliposoidal or approximate elliposoidal.
The beneficial effects of the utility model:
1, the utility model is that magnesia or calcium magnesia sand particle are carried out chemical treatment, makes its surface parcel layer of polyethylene film, and when making this product keep former performance, it is good to have the preventing hydration performance, and production cost is low, stable performance, advantage such as the shelf time is long.
2, the utility model is mainly used in the aggregate of magnesia fireproof prefabricated component, can improve the yield rate of magnesia fireproof preform product, be applicable to the magnesia or the surface treatment of calcium magnesia sand particulate preventing hydration that are of a size of 1～8mm, available lower cost improves the hydration resistance of magnesia or calcium magnesia sand, and then improves the product performance of magnesia prefabricated component.
3, the utility model product structure is simple, and cost is lower, and use range is wide, is easy to promote.
Four, description of drawings:
Fig. 1 is surface treated magnesia or calcium magnesia sand structural representation
1 is magnesia or calcium magnesia sand among the figure, and 2 is polyethylene layer.
Five, embodiment:
Embodiment one: referring to Fig. 1, be the structural representation of the utility model product, 1 is magnesia among the figure, and 2 is polyethylene layer.Add man-hour with the polyethylene heat fused after, with spray gun the polyethylene liquation is ejected on the magnesia particle, cooling back particle surface can form the sealing coat of the about 0.05～0.2mm of a layer thickness, thereby can be with magnesia and water effective isolation.
Used magnesia can be highly-purity magnesite, middle-grade magnesia or electrosmelted magnesite clinker, and the magnesia particle diameter is 1～8mm, and the magnesia shape can be sphere, almost spherical, elliposoidal, approximate elliposoidal or other are irregularly shaped.
Embodiment two: referring to Fig. 1, be the structural representation of the utility model product, 1 is calcium magnesia sand among the figure, and 2 is polyethylene layer.Add man-hour with the polyethylene heat fused after, with spray gun the polyethylene liquation is ejected into the calcium magnesia sand particle surface, cooling back particle surface forms the sealing coat that a layer thickness is about 0.05～0.2mm, thereby can be with calcium magnesia sand and water effective isolation.
The calcium magnesia sand particle diameter is 1～8mm, is shaped as sphere, almost spherical, elliposoidal, approximate elliposoidal or other are irregularly shaped.
Embodiment three: referring to Fig. 1, be the structural representation of the utility model product, 1 is calcium magnesia sand among the figure, and 2 is polyethylene layer.Add man-hour with the polyethylene heat fused after, with spray gun the polyethylene liquation is ejected into the calcium magnesia sand particle surface, cooling back particle surface can form the sealing coat that a layer thickness is about 0.1mm.
The calcium magnesia sand particle diameter is 5mm, is shaped as almost spherical.
Embodiment four: referring to Fig. 1, be the structural representation of the utility model product, 1 is magnesia among the figure, and 2 is polyethylene layer.Add man-hour with the polyethylene heat fused after, with spray gun the polyethylene liquation is ejected on the magnesia particle, cooling back particle surface can form the sealing coat of the about 0.15mm of a layer thickness.
Used magnesia is electrosmelted magnesite clinker, and the magnesia particle diameter is 3mm, and magnesia is shaped as approximate elliposoidal.
Claims (5)
1. surface treated magnesia or calcium magnesia sand, it is characterized in that: described magnesia or calcium magnesia sand outside surface are coated with polyethylene layer.
2. magnesia according to claim 1 or calcium magnesia sand is characterized in that: described polyethylene layer thickness is 0.05～0.2mm.
3. magnesia according to claim 1 or calcium magnesia sand is characterized in that: described polyethylene layer is with after the polyethylene heat fused, is adhered to magnesia or calcium magnesia sand surface then, forms polyethylene film.
4. magnesia according to claim 1 or calcium magnesia sand is characterized in that: described magnesia is highly-purity magnesite, middle-grade magnesia or electrosmelted magnesite clinker.
5. according to claim 1-4 each described magnesia or calcium magnesia sand, it is characterized in that: the diameter of described magnesia or calcium magnesia sand is 1～8mm, described magnesia or calcium magnesia sand be shaped as sphere, almost spherical, elliposoidal or approximate elliposoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920297125XU CN201593025U (en) | 2009-12-21 | 2009-12-21 | Surface-finished magnesia or MgO-CaO clinker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920297125XU CN201593025U (en) | 2009-12-21 | 2009-12-21 | Surface-finished magnesia or MgO-CaO clinker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201593025U true CN201593025U (en) | 2010-09-29 |
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ID=42775091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920297125XU Expired - Fee Related CN201593025U (en) | 2009-12-21 | 2009-12-21 | Surface-finished magnesia or MgO-CaO clinker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201593025U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306261A (en) * | 2013-07-02 | 2013-09-18 | 内蒙古大学 | Method for preparing hydrophobic sand by taking waste plastic and sand as raw materials |
| CN112453314A (en) * | 2020-11-30 | 2021-03-09 | 湖北工业大学 | Curing agent for inorganic phosphate binder precoated sand and application thereof |
| CN113321491A (en) * | 2021-06-24 | 2021-08-31 | 武汉钢铁有限公司 | Converter low-carbon magnesia carbon brick with water-resisting layer and preparation method thereof |
-
2009
- 2009-12-21 CN CN200920297125XU patent/CN201593025U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306261A (en) * | 2013-07-02 | 2013-09-18 | 内蒙古大学 | Method for preparing hydrophobic sand by taking waste plastic and sand as raw materials |
| CN103306261B (en) * | 2013-07-02 | 2015-04-22 | 内蒙古大学 | Method for preparing hydrophobic sand by taking waste plastic and sand as raw materials |
| CN112453314A (en) * | 2020-11-30 | 2021-03-09 | 湖北工业大学 | Curing agent for inorganic phosphate binder precoated sand and application thereof |
| CN112453314B (en) * | 2020-11-30 | 2022-04-22 | 湖北工业大学 | Curing agent for inorganic phosphate binder precoated sand and application thereof |
| CN113321491A (en) * | 2021-06-24 | 2021-08-31 | 武汉钢铁有限公司 | Converter low-carbon magnesia carbon brick with water-resisting layer and preparation method thereof |
| CN113321491B (en) * | 2021-06-24 | 2022-02-18 | 武汉钢铁有限公司 | Converter low-carbon magnesia carbon brick with water-resisting layer and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20131221 |