CN1142474A - Dolomite spray repleting material - Google Patents

Dolomite spray repleting material Download PDF

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Publication number
CN1142474A
CN1142474A CN 96101728 CN96101728A CN1142474A CN 1142474 A CN1142474 A CN 1142474A CN 96101728 CN96101728 CN 96101728 CN 96101728 A CN96101728 A CN 96101728A CN 1142474 A CN1142474 A CN 1142474A
Authority
CN
China
Prior art keywords
gunning refractory
calcium oxide
spray
repleting
dolomite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 96101728
Other languages
Chinese (zh)
Inventor
马林福
张运秀
郝进圈
赵明方
曹广勋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 96101728 priority Critical patent/CN1142474A/en
Publication of CN1142474A publication Critical patent/CN1142474A/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
    • C04B41/5027—Oxide ceramics in general; Specific oxide ceramics not covered by C04B41/5029 - C04B41/5051
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482—Coating or impregnation materials
    • C04B2111/00577—Coating or impregnation materials applied by spraying
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/72—Repairing or restoring existing buildings or building materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

A gunning refractory for alkaline smelting furnace contains magnesium oxide and calcium oxide. Its water-proof feature is obtained by mixing with coal tar, asphalt, etc. at 100-500 deg.C. Its advantages include long storage period (more than 3 months, low cost, rich raw materials and high calcium oxide content purifying molten steel.

Description

Dolomite spray repleting material
The present invention belongs to the furnace charge technical field, is a kind of novel spray repair furnace charge that contains magnesium oxide and calcium oxide.
At present, the Gunning refractory that China and even world's alkalescence steel melting furnace extensively adopt mainly is a magnesian gunning refractory, this Gunning refractory cost height, and resource is limited by the region.
Purpose of the present invention:
The one, adopt cheaply, resource is easily looked for, and the abundant raw material of reserves replaces.
The 2nd, adopt this material to make Gunning refractory, can not only prolongs life, can also purify hot metal.
The object of the present invention is achieved like this:
Rhombspar is after roasting, and processing is broken into release mesh, adds partially also mixing of coal tar, pitch, six more by a certain percentage, carries out preventing hydration and handle under 100-500 ℃.Preventing hydration can normally be preserved more than three months after handling.
The present invention has compared following advantage with former Gunning refractory:
1. cheap;
2. raw material resources are abundant, and are widely distributed;
3. the calcium oxide content height has cleaning action to molten steel.
The embodiment of the invention is described as follows:
With calcining in the stoving oven of high quality white marble about 1500 ℃ of buying, select, be broken into 0-5mm after the calcining, add partially also mixing of coal tar, pitch, six more by a certain percentage, under 100-500 ℃, carry out preventing hydration and handle.Pack after preventing hydration is handled and treat pin.

Claims (4)

1. the dolomite spray repleting material of an alkaline steel melting furnace, it mainly contains calcium oxide and magnesium oxide, it is characterized in that this Gunning refractory has carried out the preventing hydration processing.
2. Gunning refractory according to claim 1 is characterized in that it is to add coal tar, pitch, six by a certain percentage to carry out the preventing hydration processing partially.
3. Gunning refractory according to claim 1 is characterized in that it when preventing hydration is handled, and the Heating temperature scope is 100～500 ℃.
4. Gunning refractory according to claim 1 is characterized in that it contains calcium oxide is 35～60%.
CN 96101728 1996-01-19 1996-01-19 Dolomite spray repleting material Pending CN1142474A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 96101728 CN1142474A (en) 1996-01-19 1996-01-19 Dolomite spray repleting material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 96101728 CN1142474A (en) 1996-01-19 1996-01-19 Dolomite spray repleting material

Publications (1)

Publication Number Publication Date
CN1142474A true CN1142474A (en) 1997-02-12

Family

ID=5117231

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 96101728 Pending CN1142474A (en) 1996-01-19 1996-01-19 Dolomite spray repleting material

Country Status (1)

Country Link
CN (1) CN1142474A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101747064A (en) * 2008-11-29 2010-06-23 郑州东方三力耐火材料有限公司 Novel converter thermal-state artesian repairing material
CN101492277B (en) * 2009-03-06 2011-11-09 白玉清 Waterproofing agent special for mending toilet and kitchen
CN101602612B (en) * 2009-04-17 2012-06-06 陈红良 Gunning material formula for converter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101747064A (en) * 2008-11-29 2010-06-23 郑州东方三力耐火材料有限公司 Novel converter thermal-state artesian repairing material
CN101492277B (en) * 2009-03-06 2011-11-09 白玉清 Waterproofing agent special for mending toilet and kitchen
CN101602612B (en) * 2009-04-17 2012-06-06 陈红良 Gunning material formula for converter

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