SU1033477A1 - Raw mix for making wall products - Google Patents

Abstract

RAW MATERIAL MIXTURES FOR MAKING WALL PRODUCTS, including fly ash and ore dressing waste, with so much effort so that, in order to reduce the bulk density of products while maintaining high strength, ores containing rare and rare earth oxides, in the following ratio of components, May .: Fly ash 55-85 Ore dressing waste containing rare and rare earth oxides (L

Description

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4 H The invention relates to the building materials industry and can be used in the manufacture of ceramic wall products based on the ashes of a thermal power plant. The composition 1 of the raw material mix for the manufacture of wall products is known, which includes the following components, weight,%:. Coal 60-B9 Clay 6-10 Loam 25-30 The disadvantage of this composition is the use of wall products with relatively low strength (tensile strength when compressed, 129270 kg / cmV. The closest to the invention is the raw material mixture, 2 for fabricating wall products, including the following components, weight:. Ash 60-70 Coal waste ore dressing 30-40 The disadvantage of this raw mixture is manufacture of wall products The purpose of the invention is to reduce the mass of products while maintaining high strength. This goal is achieved by the fact that the raw material mixture for the manufacture of wall products, including soluunos and ore dressing wastes, contains ore dressing wastes containing rare and rare-earth oxides. in the following ratio, wt.%: Fly ash 55-85 Coal enrichment waste containing rare and rare-earth oxides Ore beneficiation was a finely dispersed, highly compressive (plasticity number 21) m Therians and have the following mineralogical chemical composition, weight%: 1.98 kaolinite;. quartz 24.7, hydromica 22.46 montmorillonite 4.13; reTtfr 3136; muscovite 2.01; retil 0.23, draw 0.08; iron and manganese 0.38, other ore materials 0.4. The chemical composition of the components, (.weight.;. Fly ash enriches 1 + 5.26-59.18 20.69-29.03 6, -T., FROM 1.0 0.1 -0.2 0, 8.-0.93 1.02 O, About -0.09 0.98 -1.2b 0.68-1.08 about, 96 0.21-0.30 0.19 -0.53 0, 02 -0.03 0.02 -O, ok 0.01 -0.02 0.005-0.01 0.001-0.002, 58 -5.0 The results of the dispersion analysis of ore beneficiation are given in Table 1

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Production technology for wall products is as follows.

 Ash and tailings are thoroughly mixed, and from a mass with a moisture content of 20-22% is molded by plastic pressing or from a mass with a moisture content of 8-10% at a pressure of 50 MPa, the raw material is pressed, which is dried. The temperature at the beginning of drying is 105–125 ° C at the end. The drying time is 15–20 h. The relative humidity of the raw material after drying is 6%. The products are fired at the maximum temperature with a 2-hour exposure at this temperature.

Specific compositions of the mixture are given in table. 2

55

85

70 5

thirty

15

The results of physical and mechanical tests of wall products are given in table. 3

T a b l and c a 3

Claims (1)

RAW MATERIAL MIXTURE FOR EXPLOSION OF WALL PRODUCTS, including fly ash and ore dressing waste, R s and the fact that, in order to reduce the bulk mass of products while maintaining high strength, it contains ore dressing waste containing rare and rare earth oxides, with the following ratio of components, May D: Fly ash 55-35 Ore dressing waste containing rare and rare earth oxides 15-45 SU .... 1033477> 1 1033477 2