CN112194392A - Sulphoaluminate cement clinker and preparation method thereof - Google Patents

Sulphoaluminate cement clinker and preparation method thereof Download PDF

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Publication number
CN112194392A
CN112194392A CN202011109646.5A CN202011109646A CN112194392A CN 112194392 A CN112194392 A CN 112194392A CN 202011109646 A CN202011109646 A CN 202011109646A CN 112194392 A CN112194392 A CN 112194392A
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Prior art keywords
cement clinker
parts
sulphoaluminate cement
aluminum ash
bauxite
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CN202011109646.5A
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Chinese (zh)
Inventor
王新峰
韩朝敏
韩学峰
刘银东
候学亮
梁永强
申春红
李瑞红
吴少贞
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Dengdian Group Cement Co ltd
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Dengdian Group Cement Co ltd
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Priority to CN202011109646.5A priority Critical patent/CN112194392A/en
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/32—Aluminous cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
    • C04B7/44—Burning; Melting

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention discloses a sulphoaluminate cement clinker and a preparation method thereof, relating to the technical field of sulphoaluminate cement clinker, wherein the sulphoaluminate cement clinker comprises the following raw material components in parts by weight: 24-30 parts of bauxite, 46-52 parts of high-calcium stone, 10-16 parts of desulfurized gypsum and 5-11 parts of aluminum ash. The preparation method comprises the following steps: s1, mixing bauxite, high calcium stone, desulfurized gypsum and aluminum ash, grinding and sieving to prepare mixed powder; s2, calcining the mixed powder, and cooling to obtain the sulphoaluminate cement clinker. The raw material components of the sulphoaluminate cement clinker provided by the invention adopt industrial hazardous waste aluminum ash to replace part of bauxite, so that the sulphoaluminate cement clinker is beneficial to environmental protection, reduces the treatment pressure of aluminum ash wastes, can reduce the production cost and realizes comprehensive utilization of resources; the sulphoaluminate cement clinker provided by the invention has short coagulation time and high strength.

Description

Sulphoaluminate cement clinker and preparation method thereof
Technical Field
The invention relates to the technical field of sulphoaluminate cement clinker, in particular to sulphoaluminate cement clinker and a preparation method thereof.
Background
The sulphoaluminate cement is a hydraulic cementing material with a series of excellent performances such as early strength, quick hardening, low alkalinity and the like, which is prepared by using limestone, alumina and gypsum as raw materials, calcining at low temperature to obtain clinker with anhydrous calcium sulphoaluminate and dicalcium silicate as main minerals and adding a proper amount of mixed materials for grinding together.
The aluminum ash is one of a plurality of byproducts generated in the aluminum smelting and forming process. The aluminum ash is generated in all aluminum melting processes, wherein the aluminum content accounts for 1-12% of the total loss amount in the aluminum production and use process. The aluminum ash is generally used as waste slag and is dumped, so that not only is the aluminum resource wasted, but also the environmental problem is brought.
At present, no sulphoaluminate cement clinker adopting aluminum ash as a raw material exists in the market.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides sulphoaluminate cement clinker and a preparation method thereof.
The sulphoaluminate cement clinker comprises the following raw material components in parts by weight: 24-30 parts of bauxite, 46-52 parts of high-calcium stone, 10-16 parts of desulfurized gypsum and 5-11 parts of aluminum ash.
Preferably, the sulphoaluminate cement clinker comprises the following raw material components in parts by weight: 30 parts of bauxite, 49 parts of high calcium stone, 16 parts of desulfurized gypsum and 5 parts of aluminum ash.
Further preferably, the bauxite comprises the following components in percentage by weight: loss: 11.34 percent; SiO 22：16.39％；Al2O3：59.58％；Fe2O3：3.9％；CaO：0.84％；MgO：1.57％；TiO2：2.67％。
Further preferably, the hypercalcite comprises the following components in percentage by weight: loss: 42.55 percent; SiO 22：1.78％；Al2O3：0.84％；Fe2O3：0.36％；CaO：53.2％；MgO：1.15％。
Further preferably, the desulfurized gypsum comprises the following components in percentage by weight: loss: 16.08 percent; SiO 22：1.53％；Al2O3：0.27％；Fe2O3：0.12％；CaO：34.92：MgO：0.24％；SO3：43.36％。
Further preferably, the aluminum ash comprises the following components in percentage by weight: SiO 22：1.83％；Al2O3：73.77％；Fe2O3：3.34％；CaO：6.4％；MgO：3.87％。
The preparation method of the sulphoaluminate cement clinker comprises the following steps:
s1, mixing bauxite, high calcium stone, desulfurized gypsum and aluminum ash, grinding and sieving to prepare mixed powder;
s2, calcining the mixed powder, and cooling to obtain the sulphoaluminate cement clinker.
Preferably, in step S1, the sieving is 180-200 mesh sieving.
Preferably, in step S2, the calcination is performed at 1000-1300 ℃ for 30 minutes, and then the calcination is continued at 1300-1350 ℃ for 15 minutes.
The invention has the beneficial effects that:
(1) the raw material components of the sulphoaluminate cement clinker provided by the invention adopt industrial hazardous waste aluminum ash to replace part of bauxite, so that the sulphoaluminate cement clinker is beneficial to environmental protection, reduces the treatment pressure of aluminum ash wastes, can reduce the production cost and realizes comprehensive utilization of resources; the sulphoaluminate cement clinker provided by the invention has short coagulation time and high strength.
(2) The preparation method of the sulphoaluminate cement clinker provided by the invention has the advantages of simple operation, stable process and easily available raw materials, and the prepared sulphoaluminate cement clinker has excellent coagulation performance and extremely high commercial value.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
Example 1
The sulphoaluminate cement clinker comprises the following raw material components in parts by weight: 30 parts of bauxite, 49 parts of high calcium stone, 16 parts of desulfurized gypsum and 5 parts of aluminum ash.
The main components of bauxite, high calcium stone, desulfurized gypsum and aluminum ash in the example 1 are shown in the table 1.
TABLE 1
Raw materials/ingredients loss SiO2 Al2O3 Fe2O3 CaO MgO SO3 TiO2
Bauxite 11.34 16.39 59.58 3.9 0.84 1.57 2.67
High calcium stone 42.55 1.78 0.84 0.36 53.2 1.15
Desulfurized gypsum 16.08 1.53 0.27 0.12 34.92 0.24 43.36
Aluminum ash 1.83 73.77 3.34 6.4 3.87
The preparation method of the sulphoaluminate cement clinker comprises the following steps:
s1, mixing bauxite, high calcium stone, desulfurized gypsum and aluminum ash, grinding and sieving to prepare mixed powder;
s2, calcining the mixed powder, and cooling to obtain the sulphoaluminate cement clinker.
In step S1, the sieving is 200 mesh sieving.
In step S2, the calcination is performed at 1300 ℃ of 1000 ℃ for 30 minutes, and then the calcination is continued at 1350 ℃ of 1300 ℃ for 15 minutes.
Example 2
The sulphoaluminate cement clinker comprises the following raw material components in parts by weight: 29 parts of bauxite, 47 parts of high-calcium stone, 10 parts of desulfurized gypsum and 8 parts of aluminum ash.
The main components of bauxite, hypercalcite, desulfurized gypsum and aluminum ash in example 2 in weight percent were the same as in example 1.
The preparation method of the sulphoaluminate cement clinker comprises the following steps:
s1, mixing bauxite, high calcium stone, desulfurized gypsum and aluminum ash, grinding and sieving to prepare mixed powder;
s2, calcining the mixed powder, and cooling to obtain the sulphoaluminate cement clinker.
In step S1, the sieving is 200 mesh sieving.
In step S2, the calcination is performed at 1300 ℃ of 1000 ℃ for 30 minutes, and then the calcination is continued at 1350 ℃ of 1300 ℃ for 15 minutes.
Example 3
The sulphoaluminate cement clinker comprises the following raw material components in parts by weight: 24 parts of bauxite, 52 parts of high calcium stone, 16 parts of desulfurized gypsum and 8 parts of aluminum ash.
The main components of bauxite, hypercalcite, desulfurized gypsum and aluminum ash in example 3 in weight percent were the same as in example 1.
The preparation method of the sulphoaluminate cement clinker comprises the following steps:
s1, mixing bauxite, high calcium stone, desulfurized gypsum and aluminum ash, grinding and sieving to prepare mixed powder;
s2, calcining the mixed powder, and cooling to obtain the sulphoaluminate cement clinker.
In step S1, the sieving is 200 mesh sieving.
In step S2, the calcination is performed at 1300 ℃ of 1000 ℃ for 30 minutes, and then the calcination is continued at 1350 ℃ of 1300 ℃ for 15 minutes.
Example 4
The sulphoaluminate cement clinker comprises the following raw material components in parts by weight: 27 parts of bauxite, 47 parts of high-calcium stone, 16 parts of desulfurized gypsum and 10 parts of aluminum ash.
The main components of bauxite, hypercalcite, desulfurized gypsum and aluminum ash in example 4 in weight percent were the same as in example 1.
The preparation method of the sulphoaluminate cement clinker comprises the following steps:
s1, mixing bauxite, high calcium stone, desulfurized gypsum and aluminum ash, grinding and sieving to prepare mixed powder;
s2, calcining the mixed powder, and cooling to obtain the sulphoaluminate cement clinker.
In step S1, the sieving is 200 mesh sieving.
In step S2, the calcination is performed at 1300 ℃ of 1000 ℃ for 30 minutes, and then the calcination is continued at 1350 ℃ of 1300 ℃ for 15 minutes.
Example 5
The sulphoaluminate cement clinker comprises the following raw material components in parts by weight: 27 parts of bauxite, 46 parts of high-calcium stone, 16 parts of desulfurized gypsum and 11 parts of aluminum ash.
The main components of bauxite, hypercalcite, desulfurized gypsum and aluminum ash in example 5 in weight percent were the same as in example 1.
The preparation method of the sulphoaluminate cement clinker comprises the following steps:
s1, mixing bauxite, high calcium stone, desulfurized gypsum and aluminum ash, grinding and sieving to prepare mixed powder;
s2, calcining the mixed powder, and cooling to obtain the sulphoaluminate cement clinker.
In step S1, the sieving is 200 mesh sieving.
In step S2, the calcination is performed at 1300 ℃ of 1000 ℃ for 30 minutes, and then the calcination is continued at 1350 ℃ of 1300 ℃ for 15 minutes.
Test examples
Determination of the optimum aluminum Ash mix ratio in the Thioaluminate Cement Clinkers prepared in examples 1-5
The properties of the sulphoaluminate cement clinker prepared in examples 1 to 5 were determined and included: the water requirement of the net slurry, the setting time, the strength at 1d, 3d and 28d are shown in the table 2.
TABLE 2
Figure BDA0002728162600000051
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims (9)

1. A sulphoaluminate cement clinker which is characterized in that: the sulphoaluminate cement clinker comprises the following raw material components in parts by weight: 24-30 parts of bauxite, 46-52 parts of high-calcium stone, 10-16 parts of desulfurized gypsum and 5-11 parts of aluminum ash.
2. The sulfoaluminate cement clinker of claim 1, wherein: the sulphoaluminate cement clinker comprises the following raw material components in parts by weight: 30 parts of bauxite, 49 parts of high calcium stone, 16 parts of desulfurized gypsum and 5 parts of aluminum ash.
3. The sulfoaluminate cement clinker of claim 2, wherein: the bauxite comprises the following components in percentage by weight: loss: 11.34 percent; SiO 22：16.39％；Al2O3：59.58％；Fe2O3：3.9％；CaO：0.84％；MgO：1.57％；TiO2：2.67％。
4. The sulfoaluminate cement clinker of claim 2, wherein: the high calcium stone comprises the following components in percentage by weight: loss: 42.55 percent; SiO 22：1.78％；Al2O3：0.84％；Fe2O3：0.36％；CaO：53.2％；MgO：1.15％。
5. The sulfoaluminate cement clinker of claim 2, wherein: the desulfurization gypsum is prepared from the following components in percentage by weightThe ratio meter comprises the following components: loss: 16.08 percent; SiO 22：1.53％；Al2O3：0.27％；Fe2O3：0.12％；CaO：34.92：MgO：0.24％；SO3：43.36％。
6. The sulfoaluminate cement clinker of claim 2, wherein: the aluminum ash comprises the following components in percentage by weight: SiO 22：1.83％；Al2O3：73.77％；Fe2O3：3.34％；CaO：6.4％；MgO：3.87％。
7. A process for the preparation of a sulphoaluminate cement clinker according to any of claims 1 to 6, characterized in that: the preparation method comprises the following steps:
s1, mixing bauxite, high calcium stone, desulfurized gypsum and aluminum ash, grinding and sieving to prepare mixed powder;
s2, calcining the mixed powder, and cooling to obtain the sulphoaluminate cement clinker.
8. The process for the preparation of a sulphoaluminate cement clinker according to claim 7, wherein: in step S1, the sieving is 180-200 mesh sieving.
9. The process for the preparation of a sulphoaluminate cement clinker according to claim 7, wherein: in step S2, the calcination is performed at 1300 ℃ of 1000 ℃ for 30 minutes, and then the calcination is continued at 1350 ℃ of 1300 ℃ for 15 minutes.
CN202011109646.5A 2020-10-16 2020-10-16 Sulphoaluminate cement clinker and preparation method thereof Pending CN112194392A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113816628A (en) * 2021-09-30 2021-12-21 登电集团水泥有限公司 Preparation process of sulphoaluminate cement clinker

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103922622A (en) * 2014-03-20 2014-07-16 山东大学 Process for producing sulphoaluminate cement by using aluminum ash
CN108863123A (en) * 2018-07-25 2018-11-23 西南科技大学 The technique for preparing aluminate cement using aluminium ash substitution part alumine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103922622A (en) * 2014-03-20 2014-07-16 山东大学 Process for producing sulphoaluminate cement by using aluminum ash
CN108863123A (en) * 2018-07-25 2018-11-23 西南科技大学 The technique for preparing aluminate cement using aluminium ash substitution part alumine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
曾雪玲等: "铝渣灰制备硫铝酸盐水泥的实验室研究", 《四川建材》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113816628A (en) * 2021-09-30 2021-12-21 登电集团水泥有限公司 Preparation process of sulphoaluminate cement clinker
CN113816628B (en) * 2021-09-30 2022-08-16 登电集团水泥有限公司 Preparation process of sulphoaluminate cement clinker

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Application publication date: 20210108