RU2331603C1 - Raw mixture - Google Patents

Raw mixture Download PDF

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Publication number
RU2331603C1
RU2331603C1 RU2007102986A RU2007102986A RU2331603C1 RU 2331603 C1 RU2331603 C1 RU 2331603C1 RU 2007102986 A RU2007102986 A RU 2007102986A RU 2007102986 A RU2007102986 A RU 2007102986A RU 2331603 C1 RU2331603 C1 RU 2331603C1
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RU
Russia
Prior art keywords
slag
converter
lime
mixture
sludge
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RU2007102986A
Other languages
Russian (ru)
Inventor
Юли Алексеевна Щепочкина (RU)
Юлия Алексеевна Щепочкина
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Юлия Алексеевна Щепочкина
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Priority to RU2007102986A priority Critical patent/RU2331603C1/en
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Publication of RU2331603C1 publication Critical patent/RU2331603C1/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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/08—Slag cements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

FIELD: building and construction.
SUBSTANCE: invention belongs to raw mixtures used for producing brick, blocks and panels. The raw mixture includes open-hearth furnace slag, converter dump slag, converter synthetic slag, sodium sulfate mixture, glass sand and, additionally, pyrites cinder, neutralisation sludge of waste water of sulphuric acid production, lime, with the following ratio of components, mass %: open-hearth furnace slag 18.0-22.0, converter dump slag 2.0-3.0, converter synthetic slag 2.0-3.0, sodium sulfate mixture 1.8-2.25, pyrites cinder 2.0-3.0, neutralisation sludge of waste water of sulphuric acid production 1.0-2.0, lime 4.0-6.0, the remnant is constituted by glass sand.
EFFECT: increased strength of products made of raw mixture.
1 tbl

Description

Изобретение относится к промышленности строительных материалов и касается составов сырьевых смесей для изготовления кирпича, блоков, панелей.The invention relates to the construction materials industry and relates to compositions of raw mixes for the manufacture of bricks, blocks, panels.

Известна сырьевая смесь, содержащая, мас.%: мартеновский шлак 18,7-21,25; конверторный отвальный шлак 1,0-2,5; конверторный синтетический шлак 0,5-2,0; содосульфатная смесь 1,8-2,25; кварцевый песок - остальное /1/.Known raw mix containing, wt.%: Open-hearth slag 18.7-21.25; converter dump slag 1.0-2.5; converter synthetic slag 0.5-2.0; soda-sulfate mixture 1.8-2.25; quartz sand - the rest / 1 /.

Задачей изобретения является повышение прочности изделий из сырьевой смеси.The objective of the invention is to increase the strength of products from a raw mix.

Технический результат достигается тем, что в состав сырьевой смеси дополнительно вводят пиритные огарки, шлам нейтрализации сточных вод производства серной кислоты, известь, при следующем соотношении компонентов, мас.%: мартеновский шлак 18,0-22,0; конверторный отвальный шлак 2,0-3,0; конверторный синтетический шлак 2,0-3,0; содосульфатная смесь 1,8-2,25; пиритные огарки 2,0-3,0; шлам нейтрализации сточных вод производства серной кислоты 1,0-2,0; известь 4,0-6,0; кварцевый песок - остальное.The technical result is achieved by the fact that pyrite cinders, sludge for neutralizing wastewater from the production of sulfuric acid, lime, in the following ratio of components, wt.%: Open-hearth slag 18.0-22.0; converter dump slag 2.0-3.0; converter synthetic slag 2.0-3.0; soda-sulfate mixture 1.8-2.25; pyrite cinders 2.0-3.0; sludge neutralization of wastewater production of sulfuric acid 1.0-2.0; lime 4.0-6.0; quartz sand - the rest.

В таблице приведены составы сырьевой смеси.The table shows the composition of the raw mix.

КомпонентыComponents Состав, мас.%:Composition, wt.%:   1one 22 33 мартеновский шлакopen-hearth slag 18,018.0 20,020,0 22,022.0 конверторный отвальный шлакconverter slag 3,03.0 2,52,5 2,02.0 конверторный синтетический шлакconverter synthetic slag 2,02.0 2,52,5 3,03.0 содосульфатная смесьsulphate mixture 1,81.8 2,02.0 2,22.2 пиритные огаркиpyrite cinder 2,02.0 2,52,5 3,03.0 шлам нейтрализации сточных водsewage neutralization sludge 2,02.0 1,51,5 1,01,0 производства серной кислотыsulfuric acid production       известьlime 6,06.0 5,05,0 4,04.0 кварцевый песокquartz sand 65,265,2 64,064.0 62,862.8 прочность на сжатие, МПаcompressive strength, MPa 13-1513-15 13-1513-15 13-1513-15

Для приготовления сырьевой смеси могут быть использованы: мартеновский шлак, образующийся при выплавке стали мартеновским (основным и кислым) способом; конвертерные шлаки, образующиеся при выплавке стали кислым конвертерным способом (на воздушном или кислородном дутье); отвальный шлак, уходящий в отход, и синтетический шлак, который готовят для обработки стали; содосульфатная смесь - побочный продукт производства глинозема на основе двойной соли состава Na2CO3·Na2SO4; пиритные огарки; шлам нейтрализации сточных вод производства серной кислоты состава, мас.%: сера 71-73, известь 0.5-0,7, опока 15-17, шпаты 1-3, каолин остальное; известь, содержащая не менее 93% оксида кальция; кварцевый песок.To prepare the raw material mixture can be used: open-hearth slag formed during steelmaking by the open-hearth (basic and acidic) method; converter slags formed during steelmaking using an acidic converter method (using air or oxygen blasting); waste slag and waste synthetic slag, which is prepared for steel processing; soda-sulfate mixture is a by-product of the production of alumina based on a double salt of the composition Na 2 CO 3 · Na 2 SO 4 ; pyrite cinder; slurry of neutralization of wastewater from the production of sulfuric acid composition, wt.%: sulfur 71-73, lime 0.5-0.7, flask 15-17, spars 1-3, kaolin the rest; lime containing at least 93% calcium oxide; quartz sand.

Подготавливают и дозируют компоненты. Мартеновский шлак, конвертерный отвальный и синтетический шлаки, пиритные огарки, известь размалывают до порошкообразного состояния, смешивают, добавляют содосульфатную смесь, шлам нейтрализации сточных вод производства серной кислоты, воду, еще раз смешивают и выдерживают до полного гашения извести. Из полученной смеси под давлением 15-20 МПа формуют изделия, которые затем подвергают автоклавной обработке в атмосфере насыщенного пара при давлении 0,9 МПа и температуре 175°С в течение 8-14 ч.The components are prepared and dosed. Open-hearth slag, converter slag and synthetic slag, pyrite cinders, lime are ground to a powder state, mixed, sodosulfate mixture is added, sludge to neutralize wastewater from sulfuric acid production, water is mixed again and kept until lime is completely extinguished. Products are formed from the resulting mixture under a pressure of 15-20 MPa, which are then autoclaved in an atmosphere of saturated steam at a pressure of 0.9 MPa and a temperature of 175 ° C for 8-14 hours.

Источник информацииThe source of information

1. SU 1158536, С04В 28/08, 1985.1. SU 1158536, C04B 28/08, 1985.

Claims (1)

Сырьевая смесь, содержащая мартеновский шлак, конверторный отвальный шлак, конверторный синтетический шлак, содосульфатную смесь, кварцевый песок, отличающаяся тем, что дополнительно содержит пиритные огарки, шлам нейтрализации сточных вод производства серной кислоты, известь при следующем соотношении компонентов, мас.%:The raw material mixture containing open-hearth slag, converter dump slag, converter synthetic slag, sodosulfate mixture, quartz sand, characterized in that it additionally contains pyrite cinder, sludge for neutralizing wastewater from sulfuric acid production, lime in the following ratio of components, wt.%: мартеновский шлакopen-hearth slag 18,0-22,018.0-22.0 конверторный отвальный шлакconverter slag 2,0-3,02.0-3.0 конверторный синтетический шлакconverter synthetic slag 2,0-3,02.0-3.0 содосульфатная смесьsulphate mixture 1,8-2,251.8-2.25 пиритные огаркиpyrite cinder 2,0-3,02.0-3.0 шлам нейтрализации сточных водsewage neutralization sludge   производства серной кислотыsulfuric acid production 1,0-2,01.0-2.0 известьlime 4,0-6,04.0-6.0 кварцевый песокquartz sand остальноеrest
RU2007102986A 2007-01-25 2007-01-25 Raw mixture RU2331603C1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102617072A (en) * 2011-12-28 2012-08-01 温州长城基础工程公司 Ecological brick prepared by using various waste soil and preparation method thereof
RU2670459C1 (en) * 2017-11-20 2018-10-23 Юлия Алексеевна Щепочкина Crude mixture for making silicate bricks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102617072A (en) * 2011-12-28 2012-08-01 温州长城基础工程公司 Ecological brick prepared by using various waste soil and preparation method thereof
RU2670459C1 (en) * 2017-11-20 2018-10-23 Юлия Алексеевна Щепочкина Crude mixture for making silicate bricks

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