Composite portland cement produced by full utilization of industrial waste slag

A composite Portland and Portland cement technology, which is applied in cement production, clinker production, etc., can solve the problems of not using industrial waste residue, etc., and achieve the effects of reducing fCaO content, improving clinker quality, and improving burnability

Inactive Publication Date: 2008-05-14
绵竹市齐福水泥厂
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology is mainly to add 4-15% yellow phosphorus slag to the raw meal without adding other ind

Method used

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  • Composite portland cement produced by full utilization of industrial waste slag
  • Composite portland cement produced by full utilization of industrial waste slag
  • Composite portland cement produced by full utilization of industrial waste slag

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Embodiment Construction

[0024] The chemical composition of the raw fuel material of the present invention is shown in Table 1.

[0025] Raw meal ingredients of the present invention, see the embodiment (1)-(5) of following table two.

[0026] Clinker batching of the present invention, see the embodiment 1.-5. of following table three.

[0027] Table 1 Chemical Composition of Raw Materials

[0028] name

LOSS

SiO 2

al 2 o 3

Fe 2 o 3

CaO

MgO

SO 3

∑

ore

42.5

0.75

1.70

0.46

53.1

0.77

99.28

clay

9.7

57.60

12.20

4.60

9.50

2.90

96.50

Bottom slag

14.8

48.30

17.10

14.20

3.30

1.20

98.90

Yellow phosphorus slag

-0.20

40.98

4.70

0.43

48.94

1.09

95.94

Zinc dross

7.70

39.10

7.30

20.1

14.6

3.4

92.2

Sulfuri...

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Abstract

The invention discloses a composite silicate cement. Wherein, doping the mineralizer of more than 12wt% slag contained the phosphoric slag, zinc slag, hearth slag, and sulfuric slag into the raw material comprised ore, clay and coal to crush and grind to obtain the material with 0.98+/-0.02 KH, 2.4+/-0.1 N and 1.4+/-0.1 P; adding the mixed material of more than 30wt% contained phosphoric slag, coal ash, ardealite and lithium slag into the calcining grog; then, homogenizing, crushing, grinding, and obtaining the product. The product has high early strength, fast growth of later strength, and all physicochemical index super to the GB12958-1999 standard. This invention improves the combustibility of raw material effectively, reduces heat consumption and fCaO content of grog, and saves material and energy.

Description

technical field [0001] The present invention relates to composite Portland cement, in particular, it is a kind of composite Portland cement produced by utilizing industrial waste slag. In the preparation of raw materials, industrial waste slag is used as raw and auxiliary materials, and the calcined clinker is mixed with Industrial waste slag is used as cement admixture, which is ground into composite Portland cement. This product is used in the construction of high-rise buildings, bridges, culverts, etc., especially for water conservancy construction. Background technique [0002] With the development of the market economy, the structural adjustment of the cement industry has been strengthened. The country advocates green and environmentally friendly products, adopts preferential tax policies to encourage enterprises to research and utilize industrial waste residues, gradually improves the utilization rate of waste residues, and reduces the impact of waste residues on the e...

Claims

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Application Information

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IPC IPC(8): C04B7/02C04B7/14C04B7/36
CPCY02P40/10Y02P40/121
Inventor 袁军基李汝斌
Owner 绵竹市齐福水泥厂
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