SU1730069A1 - Raw mix for preparing clinker-free binder - Google Patents

Abstract

The invention relates to the building materials industry, in particular to the production of clinker-free titanium-magnesium production and sol thermal power plants, and can be used to make building blocks, slabs, mortars and autoclaved materials, as well as lean concrete for road construction. hard coating. The purpose of the invention is to increase the strength. The raw material of the clinkerless mixture includes, in wt.%: Pre-heat-treated at 150-250 ° C sludge TM К 50-90. ash TPP 10-50. The firing temperature of the raw mix is 1000-1100 ° C. Ztabl,

Description

The invention relates to the building materials industry, in particular to the production of clinker-free tyt-magnesium production and ash from thermal power plants. The gantry can be used to make building blocks, slabs, mortars and autoclaved materials, as well as concrete for building hard-surface roads.

 The purpose of the invention is to increase the strength.

Examples of implementation of the invention.

Titanium-magnesium sludge production is a light brown fine-grained and dusty mass with a specific surface of 4000-5000 cm2 / g, consisting of the following materials: calcite, ankerite 1, quartz, limonite, hematite, magnetite, ilmenite, glass, ash, calcium hydroxide, calcium hydrochloride aluminate, magnesium sulfate, magnesium chloride, iron chloride, amorphous silica, sulfate hydroxide, metallic magnesium.

The chemical and mineralogical composition of TMK sludge is shown in Table. one,

Fly ash is represented by quartz, glass, fragments of coal, ash, graphite, carbonaceous shale, calcite, anhydrite, hematite, magnetite, rutile, calcium aluminate, magnesite, iron hydroxides, biotite, corundum. The chemical composition of the ash is given in table. 2

The preparation of an inker-free wafer from sludge and ash is carried out as follows. The pre-heat treated at 150-250 ° С slurry and ash within the claimed portion is ground in a ball mill to a specific surface of 4500-5000 cm2 / g. The selection of the chemical composition of the raw mix is carried out so that when

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mechanical, thermal, electromagnetic, etc. activation formed the maximum amount of cement minerals. In tab. 3 shows the chemical compositions of three examples of a clinker-free feed raw material.

PRI me R 1. Heat treated at 250 ° C a mixture of sludge and ash containing components, wt.%: Sludge 70; ash 30; with the content of oxides, wt.%: 5102 24,64; TiO2 5.59; A12Oz 9.91: ReaOz 4.43; FeO 0.50: MpO 0.15: MdO 3.30; CaO 24.75; NaaO 0.38; K20 1.25; NZO 6.05; SPT 19.05, grind in a ball mill to a specific / surface 4500-5000 cm / g. The raw material mixture is baked at 1000-1100 ° C for 4 hours. After cooling to room temperature, the raw material mixture is milled in a vibratory mill to a specific surface area of 8000-9000 cm2 / g. Samples were prepared from the obtained light gray color for the test.

PRI mme R 2. Thermally treated at 200-250 ° C a mixture of sludge and ash with a content of components, wt,%: sludge 90; ash 10, with the content of oxides, wt.%: South Africa 29,10; TiO2 3.75: ABOz 10.92; Re20z7,17; Fed 0.58; MpO 0.43; MDO 6.70; CaO 31.75; No. 20 0.43; KzO 1.35; PisOsOJO; 1.05; SPT 6.67

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grind in a ball mill to a specific surface of 5000 cm2 / g. The raw material mixture is roasted at 1,100 ° C for 3.5-4 hours. The raw material is cooled in air to room temperature and ground in a vibratory mill to a specific surface area of 1000 cm2 / g. Bes0

five

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five

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five

The clinker is light brown in color.

PRI me R 3. Heat-treated at a temperature of 150 ° C a mixture of sludge and ash with a content of components, wt.%: Sludge 50; ash 50 with the content of oxides, wt.%: SI02 40,57; TI02 2.80: 12.81; Pe203 4.26: FeO 1.43; MpO 0.24; MDO 3.53: CaO 20.25; N320 0.56; K20 1.78: P20s 0.16; H20 1.02; SPT 10.53 is milled in a ball mill to a specific surface of 4500 - 5000 cm2 / g. The raw material mixture is roasted at 900-1000 ° C for 5 hours. After cooling in air to room temperature, it is milled in a vibratory mill to a specific surface area of 7000-8000 cm2 / g.

The clinker free is gray. Fabricated samples after 28 days of exposure to water have the ultimate compressive strength, kg / cm2:

example 1 from 200 to 250

example 2 from 300 to 380;

example 3 from 25 to 72.6. prototype - from 60 to 80.

Claims (1)

Invention Formula Raw mix for besklinkernogo bushing, including sludge waste titanium-magnesium production, characterized in that, in order to increase the strength, it additionally contains fly ash, in the following ratio, wt.%: Slurry waste titanium magnesium production Fly ash TPP T and Chemical 5 liters and 1 sludge composition 50-90 10-50 Slime 3.8 18.62 0.19 8, 2.67 7.12 0.99 10.82 0.86 Slime , 70 1.95 6.1) 8 1.95 M0.32 1.15 0, A8 1.5 Shlama0.01 1.17 0.01 2.0 0.02 0.1 0.05 0.20 0.05 0.05 0.05 0.72 Shlama0,251.30 6 0,010,150,050,3 0,02,0,3 0,10,55 --- --- - The chemical composition of fly ash TPP (in two samples). ... Table 2 , Shlam5M2 57, EB 0.1 0.98 20.0 21.0 M7 5.22 1.57 3.01 Shlama2.2k 2.60 L 5.85 1 2,; 12 1.5 2.9 0.05 0.1 Continuation of table 2 Slime 0.01 0.10 0.015 0.1 0.1 0.22 0.2 0.5 1.5 3.0 Chemical analyzes of sludge and fly ash Pri- “p ., Soderlaiie Okislov.Ј .1.1-0г1Аи ° Fe ° J: h5 ИЕ 5 | 5 -к; 5 рр; б7 Гг; о-jT, ™ - гё г 121, P61 | 5.59 9.91 0.50 0.15 3.30 24.75 in, 3Ј 1.55 -6 051y 5100 223.10 3.75 10.92 7.17 0.53 0.43 6.70 31.75 OM 1.35 0.10 1.056, , 53 2.80 12.91 4.26- 1.43 0.24 3.53 20.25 0.56 1.78 0.16 1.0210 53 - 100 Table 3