SU1193138A1 - Raw mixture for producing cement clinker - Google Patents

Abstract

RAW MIXTURE FOR CREATING A CEMENT KLINKER, including limestone, aluminosilicate components and an additive, differ- ent. Because, in order to reduce the energy costs of clinker burning, reduce the sludge thickenability and reduce the grindability of the clinker, it contains as a supplement aluminum secondary remelting slags of 0.6 mm fraction or cyclone secondary aluminum melting dust and spent chromium aluminum. catalyst in the following ratio, wt.%: Aluminosilicate component19-40 Secondary aluminum smelting slag fraction of 0.6 mm or dust from 9 secondary slags (L aluminum smelting from cyclones 0.05-5 s: Exhausted th alyumohromovy katalizator0, 05-5 Limestone kovy Other components

Description

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FIELD OF THE INVENTION The invention relates to compositions of syfie mixtures used in the manufacture of cement clinker.

The purpose of the invention is to reduce the energy costs of burning clinker, reducing the thickenability of the sludge and increasing the grindability of clinker.

Examples 1-18. Raw mixes are prepared by mixing the components in the ratio given in Table 1.

The compositions of the additives are given in table 2.

The firing of the mixtures is carried out at t 1350-1380 s.

The mineralogical composition of the final product: solid solution three 931382

calcium silicate with chromium, anibmidium, magnesium, chlorine, fluorine 50-, 80.5%; A solution of dicalcium silicate with chromium, aluminum,

5 magnesium, chlorine, fluorine and sodium 12-24%; Calcium aluminoferrites solid solution with chromium, aluminum, magnesium, chlorine, fluorine, potassium and sodium 1-7% mixture of solid solutions

10 calcium aluminates with chromium, aluminum, magnesium, chlorine, fluorine, potassium and sodium 6-11%; fluorine-chloralinite 0.5-8%.

The test results are given

15 in table 3.

Tests show a reduction of dust from a rotary kiln on

10-12%.

Table 1

50

ten

6 mm slag fraction

Dust slag recycling aluminum from cyclones

40

8 10 10 10 2776

I 6.48 6.48 I

Extension tab. one

Slag recycling aluminum

table 2

25

2

I

eight

0.02

3

Continued table. 2

Table 3 3a 100% grinding of upstream clinker to S 4000 cm / g.

Continued table. 3 time required for grinding stumpy

Claims (1)

RAW MATERIAL MIXTURE FOR PRODUCING A CEMENT CLINKER, including limestone, aluminosilicate components and an additive, distinguish—. This is due to the fact that, in order to reduce the energy costs of clinker burning, reduce the thickening of the sludge and increase the clinker grindability, it contains, as an additive, slags of secondary remelting of aluminum fractions <0.6 mm or dust of slags of secondary remelting of aluminum from cyclones and spent aluminum-chromium catalyst in the following ratio of components, wt.%: Aluminosilicate component 19-40 Slags of secondary remelting of aluminum fractions <0.6 mm or dust of slags of secondary remelting of aluminum from cyclones Spent aluminum-chromium catalyst Limestone component 0.05-5 0.05-5 Rest SU „„ 1193138 1193