RU2605567C1 - Refractory mixture - Google Patents

Refractory mixture Download PDF

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Publication number
RU2605567C1
RU2605567C1 RU2015156075/03A RU2015156075A RU2605567C1 RU 2605567 C1 RU2605567 C1 RU 2605567C1 RU 2015156075/03 A RU2015156075/03 A RU 2015156075/03A RU 2015156075 A RU2015156075 A RU 2015156075A RU 2605567 C1 RU2605567 C1 RU 2605567C1
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RU
Russia
Prior art keywords
magnesite
sodium hexametaphosphate
corundum
refractory
chromite ore
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RU2015156075/03A
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Russian (ru)
Inventor
Юлия Алексеевна Щепочкина
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Юлия Алексеевна Щепочкина
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Priority to RU2015156075/03A priority Critical patent/RU2605567C1/en
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Publication of RU2605567C1 publication Critical patent/RU2605567C1/en

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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
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C04B35/101—Refractories from grain sized mixtures
    • C04B35/105—Refractories from grain sized mixtures containing chromium oxide or chrome ore
    • 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
    • C04B2235/3243—Chromates or chromites, e.g. aluminum chromate, lanthanum strontium chromite

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

FIELD: metallurgy.
SUBSTANCE: invention relates to production of refractory mass, which can be used for lining thermal generating units. Refractory mixture contains, wt%: chromite ore 60.0-64.0; magnesite 22.0-27.0; sodium hexametaphosphate 2.2-2.1; corundum 10.8-11.5.
EFFECT: technical result consists in improvement of fire-resistance of coating.
1 cl, 1 tbl

Description

Изобретение относится к производству огнеупорных масс, которые могут быть использованы для футеровки тепловых агрегатов.The invention relates to the production of refractory masses that can be used for lining thermal units.

Известна огнеупорная масса, содержащая следующие компоненты, мас.%: хромитовая руда 66,6-82,5; магнезит 14,6-28,6; гексаметафосфат натрия 2,9-4,8 [1].Known refractory mass containing the following components, wt.%: Chromite ore 66.6-82.5; magnesite 14.6-28.6; sodium hexametaphosphate 2.9-4.8 [1].

Задача изобретения состоит в повышении огнестойкости покрытия.The objective of the invention is to increase the fire resistance of the coating.

Технический результат достигается тем, что огнеупорная масса, включающая хромитовую руду, магнезит и гексаметафосфат натрия, дополнительно содержит корунд при следующем соотношении компонентов, мас.%: хромитовая руда 60,0-64,0; магнезит 22,0-27,0; гексаметафосфат натрия 2,2-2,7; корунд 10,8-11,5.The technical result is achieved in that the refractory mass, including chromite ore, magnesite and sodium hexametaphosphate, additionally contains corundum in the following ratio of components, wt.%: Chromite ore 60.0-64.0; magnesite 22.0-27.0; sodium hexametaphosphate 2.2-2.7; corundum 10.8-11.5.

В таблице приведены составы огнеупорной массы.The table shows the compositions of the refractory mass.

Figure 00000001
Figure 00000001

Для приготовления огнеупорной массы компоненты дозируют в требуемых количествах. Хромитовую руду (содержание Cr2O3 не менее 52 мас.% и SiO2 не более 3,5 мас.%), магнезит, корунд по отдельности размалывают до прохождения через сито №063, смешивают с добавлением гексаметафосфата натрия. Из полученной массы прессуют изделия, которые сушат при температуре 100-150°C.To prepare the refractory mass, the components are dosed in the required quantities. Chromite ore (content of Cr 2 O 3 not less than 52 wt.% And SiO 2 not more than 3.5 wt.%), Magnesite, corundum separately grinded before passing through a sieve No. 063, mixed with the addition of sodium hexametaphosphate. Products are pressed from the resulting mass, which are dried at a temperature of 100-150 ° C.

Источники информацииInformation sources

1. SU 626078, C04B 35/12, 1978.1. SU 626078, C04B 35/12, 1978.

Claims (1)

Огнеупорная масса, включающая хромитовую руду, магнезит и гексаметафосфат натрия, отличающаяся тем, что дополнительно содержит корунд при следующем соотношении компонентов, мас.%: хромитовая руда 60,0-64,0; магнезит 22,0-27,0; гексаметафосфат натрия 2,2-2,1; корунд 10,8-11,5. Refractory mass, including chromite ore, magnesite and sodium hexametaphosphate, characterized in that it additionally contains corundum in the following ratio of components, wt.%: Chromite ore 60.0-64.0; magnesite 22.0-27.0; sodium hexametaphosphate 2.2-2.1; corundum 10.8-11.5.
RU2015156075/03A 2015-12-25 2015-12-25 Refractory mixture RU2605567C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Publications (1)

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RU2605567C1 true RU2605567C1 (en) 2016-12-20

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU601264A1 (en) * 1976-11-29 1978-04-05 Восточный научно-исследовательский и проектный институт огнеупорной промышленности Refractory compound
SU626078A1 (en) * 1977-04-19 1978-09-30 Научно-Производственное Объединение "Энергоцветмет" Refractory mass
SU1073223A1 (en) * 1980-08-12 1984-02-15 Центральный Научно-Исследовательский Институт Строительных Конструкций Им.В.А.Кучеренко Refractory concrete comosition
GB2262522A (en) * 1991-11-26 1993-06-23 Nippon Steel Corp Refractory composition
UA103507C2 (en) * 2011-07-18 2013-10-25 Общество С Ограниченной Ответственностью "Дружковский Завод Строительных Материалов" Refractory mass for the production of periclase-chromite-spinel heat-treated refractory

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU601264A1 (en) * 1976-11-29 1978-04-05 Восточный научно-исследовательский и проектный институт огнеупорной промышленности Refractory compound
SU626078A1 (en) * 1977-04-19 1978-09-30 Научно-Производственное Объединение "Энергоцветмет" Refractory mass
SU1073223A1 (en) * 1980-08-12 1984-02-15 Центральный Научно-Исследовательский Институт Строительных Конструкций Им.В.А.Кучеренко Refractory concrete comosition
GB2262522A (en) * 1991-11-26 1993-06-23 Nippon Steel Corp Refractory composition
UA103507C2 (en) * 2011-07-18 2013-10-25 Общество С Ограниченной Ответственностью "Дружковский Завод Строительных Материалов" Refractory mass for the production of periclase-chromite-spinel heat-treated refractory

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