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CN107500785A - Bag magnesium dry-type stock and preparation method in a kind of regenerative - Google Patents

Bag magnesium dry-type stock and preparation method in a kind of regenerative Download PDF

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Publication number
CN107500785A
CN107500785A CN201710621831.4A CN201710621831A CN107500785A CN 107500785 A CN107500785 A CN 107500785A CN 201710621831 A CN201710621831 A CN 201710621831A CN 107500785 A CN107500785 A CN 107500785A
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CN
China
Prior art keywords
magnesite
regenerative
bag
chrome brick
dry
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
CN201710621831.4A
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Chinese (zh)
Inventor
常德世
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.)
Deqing Kerry New Material Co., Ltd.
Original Assignee
Deqing Kerry High Temperature Materials Ltd By Share Ltd
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 Deqing Kerry High Temperature Materials Ltd By Share Ltd filed Critical Deqing Kerry High Temperature Materials Ltd By Share Ltd
Priority to CN201710621831.4A priority Critical patent/CN107500785A/en
Publication of CN107500785A publication Critical patent/CN107500785A/en
Pending legal-status Critical Current

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    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/02—Linings
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3241—Chromium oxides, chromates, or oxide-forming salts thereof
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3427—Silicates other than clay, e.g. water glass
    • C04B2235/3436—Alkaline earth metal silicates, e.g. barium silicate
    • C04B2235/3445—Magnesium silicates, e.g. forsterite
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Bag magnesium dry-type stock and preparation method in a kind of regenerative, the dry materials are made up of following components and percentage by weight：40~50% regeneration magnesite-chrome brick material, 35~45% forsterite, 5~15% 92 magnesite clinkers, 4~7% Dextrose Monohydrate, 0~2% white clay, 0~1% borax, the proportioning of above component are defined by 100 percent；Wherein described regeneration magnesite-chrome brick material is the discarded object after cement kiln and copper smelter use, by artificial selection, then by the broken particle and fine powder being machined into；Described preparation method includes：a）Raw material crushes；b）Dispensing；c）Raw material stirs；d）Packaging；e）Check and accept, storage；It has and can substantially reduce cost, develops a circular economy, economizes on resources, the features such as environmental protection.

Description

Bag magnesium dry-type stock and preparation method in a kind of regenerative
Technical field
The present invention relates to the magnesia middle bag dry materials of the regenerative used in continuous casting production during a kind of iron and steel smelting and system Preparation Method, belong to smelting iron and steel stove technical field of refractory materials.
Background technology
Tundish mainly uses magnesite clinker, fused magnesite with dry materials as main raw material(s) at present, as country is to ore deposit The comprehensive regulation of mountain exploitation, magnesite resource increasingly depleted, magnesite clinker and fused magnesite price are constantly soaring, cause in production Between the costs of bag dry materials also constantly rise.And nearly 2 years global economies occur descending, infrastructure and all trades and professions are fixed Capital input slows down, and steel industry faces production capacity surplus, and supply exceed demand, and price of steel product drops to low ebb, and whole industry large area is lost, Steel industry is control steel production cost, carries out low tender price buying to refractory material used, causes refractories industry to be lifted Step dimension is difficult.
The content of the invention
It is an object of the invention to overcome the shortcomings of the prior art, and provide a kind of primarily to solving in tradition The problem of bag dry materials cost is higher, by the use of the regeneration of waste and old magnesite-chrome brick magnesia-chrome sand as primary raw material, cost can be substantially reduced, Develop a circular economy, economize on resources, the magnesia middle bag dry materials of regenerative and preparation method of environmental protection.
The purpose of the present invention is completed by following technical solution, bag magnesium dry-type stock in a kind of regenerative, it by Following components and percentage by weight composition：
Regenerate magnesite-chrome brick material：40~50%,
Forsterite 35~45%,
92 magnesite clinkers：5~15%,
Dextrose Monohydrate：4~7%,
White clay：0~2%,
Borax：0~1%,
The proportioning of above component is defined by 100 percent；
Wherein described regeneration magnesite-chrome brick material is the discarded object after cement kiln and copper smelter use, by artificial selection, then by broken The broken particle and fine powder being machined into.
As preferred：It is made up of following components and percentage by weight：
Regenerate magnesite-chrome brick material：44%,
Forsterite 39%,
92 magnesite clinkers：10%,
Dextrose Monohydrate：5.5%,
White clay：1%,
Borax： 0.5%.
The preparation method of bag magnesium dry-type stock, described preparation method comprise the following steps in a kind of regenerative as described above：
a）Raw material crushes：The useless magnesite-chrome brick bought is standby after artificial selection, and 15 below mm are broken into jaw crusher Grain, then drying processing is carried out, its moisture is less than 0.5%, be then prepared into 3-1,1-0mm by double-roll crusher and vibratory sieve Particle is standby, and it is standby to be processed into 180 mesh fine powders with Raymond mill；
b）Dispensing：Electronic scale accurately weighs various raw materials by proportioning；
c）Raw material stirs：Load weighted regeneration magnesite-chrome brick aggregate and fine powder, forsterite aggregate, sinter 92 magnesia powders, white Mud, borax and Dextrose Monohydrate are added in planetary mixer and discharged after stirring 8-15 minutes；
d）Packaging：The magnesia middle bag dry materials of the regenerative being stirred are packed using 25 kilograms+jumbo bag；
e）Check and accept, storage.
The useless magnesite-chrome brick and cheap forsterite that the present invention is mainly pulled down using cement kiln high-temperature band and copper smelter are former Bag dry materials in material production, successfully develop the magnesia middle bag dry materials of regenerative, using environmental-friendly binder Dextrose Monohydrate With reference to it has good erosion-resisting characteristics, and demoulding strength is high, disintegrates automatically functional, construction is simple, turns over containing easily, saves The energy, cost is cheap, environment-friendly, and service life is not less than the dry materials of pure magnesia production；Looked forward to by domestic big-and-middle-sized steel The industry use of nearly 1 year, using effect is good, fully meets the requirement that contemporary steel industry low cost production is smelted.
Embodiment
Below in conjunction with specific embodiment, the present invention will be described in detail：Bag magnesium in a kind of regenerative of the present invention Matter dry materials, it is made up of following components and percentage by weight：
Regenerate magnesite-chrome brick material：40~50%,
Forsterite 35~45%,
92 magnesite clinkers：5~15%,
Dextrose Monohydrate：4~7%,
White clay：0~2%,
Borax：0~1%,
The proportioning of above component is defined by 100 percent；
Wherein described regeneration magnesite-chrome brick material is the discarded object after cement kiln and copper smelter use, by artificial selection, then by broken The broken particle and fine powder being machined into；Major function is the refractoriness of bag dry materials in guarantee, high volume stability and resisted The aggressivity of molten steel and slag；
Described forsterite major function is the corrosion resistance and thermal shock resistance of bag dry materials in improving；
92 described magnesite clinker major functions are bag dry materials fire resistances in being wrapped in raising regenerative, strengthen the base of dry materials Matter part；
Described Dextrose Monohydrate：The bonding agent of clad dry materials mainly in regenerative, the middle low temperature of bag dry materials in guarantee Intensity；
Described white clay and borax predominantly promote to burn agent agent, bag dry materials high temperature intensity in guarantee.
The preparation method of bag magnesium dry-type stock, described preparation method include following step in a kind of regenerative as described above Suddenly：
a）Raw material crushes：The useless magnesite-chrome brick bought is standby after artificial selection, and 15 below mm are broken into jaw crusher Grain, then drying processing is carried out, its moisture is less than 0.5%, be then prepared into 3-1,1-0mm by double-roll crusher and vibratory sieve Particle is standby, and it is standby to be processed into 180 mesh fine powders with Raymond mill；
b）Dispensing：Electronic scale accurately weighs various raw materials by proportioning；
c）Raw material stirs：Load weighted regeneration magnesite-chrome brick aggregate and fine powder, forsterite aggregate, sinter 92 magnesia powders, white Mud, borax and Dextrose Monohydrate are added in planetary mixer and discharged after stirring 8-15 minutes；
d）Packaging：The magnesia middle bag dry materials of the regenerative being stirred are packed using 25 kilograms+jumbo bag；
e）Check and accept, storage.
Embodiment 1：Bag magnesium dry-type stock in regenerative of the present invention, it is by following components and percentage by weight group Into：
Regenerate magnesite-chrome brick material：44%,
Forsterite 39%,
92 magnesite clinkers：10%,
Dextrose Monohydrate：5.5%,
White clay：1%,
Borax： 0.5%.
The preparation method of bag magnesium dry-type stock, described preparation method comprise the following steps in a kind of regenerative as described above：
a）Raw material crushes：The useless magnesite-chrome brick bought is standby after artificial selection, and 15 below mm are broken into jaw crusher Grain, then drying processing is carried out, its moisture is less than 0.5%, be then prepared into 3-1,1-0mm by double-roll crusher and vibratory sieve Particle is standby, and it is standby to be processed into 180 mesh fine powders with Raymond mill；
b）Dispensing：Electronic scale accurately weighs various raw materials by proportioning；
c）Raw material stirs：Load weighted regeneration magnesite-chrome brick aggregate and fine powder, forsterite aggregate, sinter 92 magnesia powders, white Discharged after being stirred 12 minutes in mud, borax and Dextrose Monohydrate addition planetary mixer；
d）Packaging：The magnesia middle bag dry materials of the regenerative being stirred are packed using 25 kilograms+jumbo bag；
e）Check and accept, storage.
Embodiment 2：Bag magnesium dry-type stock in regenerative of the present invention, it is by following components and percentage by weight group Into：
Regenerate magnesite-chrome brick material：40%,
Forsterite 40%,
92 magnesite clinkers：12%,
Dextrose Monohydrate：5%,
White clay：2%,
Borax： 1%.
Other contents for being not directed to are same as Example 1.
Embodiment 3：Bag magnesium dry-type stock in regenerative of the present invention, it is made up of following components and percentage by weight：
Regenerate magnesite-chrome brick material：50%,
Forsterite 38%,
92 magnesite clinkers：7%,
Dextrose Monohydrate：5%,
White clay：0,
Borax： 0.
Other contents for being not directed to are same as Example 1.
Effect is caused by the present invention：Solve conventional dry material cost height, phenol is replaced using cheap Dextrose Monohydrate Urea formaldehyde, not only cost is low, and environmental protection, the dry materials of resin-bonded can volatilize formaldehyde and ammonia in use, The gas is harmful, pollutes site work environment, and Dextrose Monohydrate is volatilized using process without any toxic gas, green Environmental protection.Magnesia-chrome sand is regenerated furthermore with useless magnesite-chrome brick, is polluted the environment because useless magnesite-chrome brick is deposited in nature, also functions to resource again The raw effect for efficiently utilizing and protecting social environment.

Claims (3)

1. bag magnesium dry-type stock in a kind of regenerative, it is characterised in that it is made up of following components and percentage by weight：
Regenerate magnesite-chrome brick material：40~50%,
Forsterite 35~45%,
92 magnesite clinkers：5~15%,
Dextrose Monohydrate：4~7%,
White clay：0~2%,
Borax：0~1%,
The proportioning of above component is defined by 100 percent；
Wherein described regeneration magnesite-chrome brick material is the discarded object after cement kiln and copper smelter use, by artificial selection, then by broken The broken particle and fine powder being machined into.
2. bag magnesium dry-type stock in regenerative according to claim 1, it is characterised in that it is by following components and weight hundred Divide than composition：
Regenerate magnesite-chrome brick material：44%,
Forsterite 39%,
92 magnesite clinkers：10%,
Dextrose Monohydrate：5.5%,
White clay：1%,
Borax： 0.5%.
A kind of 3. preparation method of bag magnesium dry-type stock in regenerative as claimed in claim 1 or 2, it is characterised in that described system Preparation Method comprises the following steps：
a）Raw material crushes：The useless magnesite-chrome brick bought is standby after artificial selection, and 15 below mm are broken into jaw crusher Grain, then drying processing is carried out, its moisture is less than 0.5%, be then prepared into 3-1,1-0mm by double-roll crusher and vibratory sieve Particle is standby, and it is standby to be processed into 180 mesh fine powders with Raymond mill；
b）Dispensing：Electronic scale accurately weighs various raw materials by proportioning；
c）Raw material stirs：Load weighted regeneration magnesite-chrome brick aggregate and fine powder, forsterite aggregate, sinter 92 magnesia powders, white Mud, borax and Dextrose Monohydrate are added in planetary mixer and discharged after stirring 8-15 minutes；
d）Packaging：The magnesia middle bag dry materials of the regenerative being stirred are packed using 25 kilograms+jumbo bag；
e）Check and accept, storage.
CN201710621831.4A 2017-07-27 2017-07-27 Bag magnesium dry-type stock and preparation method in a kind of regenerative Pending CN107500785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710621831.4A CN107500785A (en) 2017-07-27 2017-07-27 Bag magnesium dry-type stock and preparation method in a kind of regenerative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710621831.4A CN107500785A (en) 2017-07-27 2017-07-27 Bag magnesium dry-type stock and preparation method in a kind of regenerative

Publications (1)

Publication Number Publication Date
CN107500785A true CN107500785A (en) 2017-12-22

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110526723A (en) * 2019-09-12 2019-12-03 通化耐博新材料股份有限公司 Environment-friendly type tundish dry material and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011095018A1 (en) * 2010-02-03 2011-08-11 淄博市鲁中耐火材料有限公司 Magnesia-hercynite brick and preparation method thereof
CN105236994A (en) * 2015-08-26 2016-01-13 北京利尔高温材料股份有限公司 Dry vibration material used in tundish, and preparation method thereof
CN106915953A (en) * 2017-04-01 2017-07-04 海城市中兴镁质合成材料有限公司 A kind of tundish dry material and its mode of production using useless magnesite-chrome brick

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011095018A1 (en) * 2010-02-03 2011-08-11 淄博市鲁中耐火材料有限公司 Magnesia-hercynite brick and preparation method thereof
CN105236994A (en) * 2015-08-26 2016-01-13 北京利尔高温材料股份有限公司 Dry vibration material used in tundish, and preparation method thereof
CN106915953A (en) * 2017-04-01 2017-07-04 海城市中兴镁质合成材料有限公司 A kind of tundish dry material and its mode of production using useless magnesite-chrome brick

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110526723A (en) * 2019-09-12 2019-12-03 通化耐博新材料股份有限公司 Environment-friendly type tundish dry material and preparation method thereof

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Address after: 313200 Longshan Road 130, Zhongguan Town, Deqing County, Huzhou City, Zhejiang Province

Applicant after: Deqing Kerry New Material Co., Ltd.

Address before: 313200 Longshan Road, Zhongguan Town, Huzhou City, Zhejiang Province, 130

Applicant before: Deqing Kerry high temperature materials Limited by Share Ltd

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Application publication date: 20171222

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