SU1413076A1 - Raw mixture for producing agglomerated porous material - Google Patents

Abstract

The invention relates to the production of building materials and can be used in the manufacture of agloporite from a mixture of clay and industrial waste. In order to maintain the strength and refractoriness of agloporite, the raw material mixture comprises 10–20 wt.% Of refractory clay; 7-9 wt.% Coal and 71-83 wt.% Slag from the processing of secondary alcumin. The resulting aglo-porite fr. 10–20 mm is characterized by a bulk density of 342–368 kg / m, compressive strength of 0.93–1.18 MPa and fire resistance of 1580–1 BOO p. 2 tab. $

Description

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ABOUT)

The invention relates to the production of building materials and can be used in the manufacture of agloporite from a mixture of clay raw materials and industrial waste.

The purpose of the invention is the strength and fire resistance of agloporite.

The mixture for obtaining agloporite includes 10–20 wt.% Of refractory clay, 7–9 May,% coal, and 71–83 wt.% Of slags from the secondary melting of secondary alumina.

Aluminum production waste - slags from the remelting of recycled aluminum have the following chemical composition,%: SiO 1,9-7,4; 93.25-81.65; 2.45-7.0; CuO 1.75-2.4; MnO 0.21-0.35; ZrtO 0.44-1.2. v

The mixture for the preparation of agloporite is prepared by mixing refractory clay, coal, and almond production, presented in the form of slag with a particle size of less than 2.5 mm. The mixture is moistened, granulated and calcined on the sintering machine. The sintering process of the charge is carried out according to a known technological scheme for the production of agloporite.

i; a b and c a 1

Indicators

Content, wt.%, In the compositions

type of:

about

10 15 15 20

83 78 77 71

Described compositions have to

The compositions of the mixtures and the properties of the properties represented by agloporite are presented in Table 1. in tab. 2

Bulk density, kg / m

10-20

5-10,

Compressive strength, MPa

10-20

5-10 Refractoriness, C

The high content of A1 0 oxides in the aluminum production wastes allows to obtain a porous aggregate with high refractoriness, and

Table 2

368349 367-380

468452 5.10-515

1.18f, 04 0.55-0.60

2,081.86 1.25-1.39

16001600 1250-1300

the presence of MnO and ZnO oxides in the waste contributes to the intensive crystallization and increase in the strength of agloporite.

3J413076,

Claims (1)

The resulting porous aggregates are soothing, so that, for the purpose of the raw materials mixtures, vans can be used to increase the strength and refractoriness of the lungs and high-strength heat-. agloporite, it contains as resistant concretes of waste production slags from the smelting of secondary aluminum at the next formula of the following ratio of components, May .: Fire Clay 10-20 Raw mixture to obtain sintering coal 7-9 porous, including refractory clay, fQ Slag from the smelting of coal and industrial waste, about tl and secondary aluminum 71-83