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Thermal insulation mortar containing semidry method desulfurized fly ash and preparation method therefor

A semi-dry desulfurization and thermal insulation mortar technology is applied in the field of building materials, which can solve the problems of desulfurization ash pollution and poor stability, and achieve the effects of high fire resistance, good construction and use performance, and improved crack resistance.

Inactive Publication Date: 2015-09-16
武钢集团有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The present invention aims at the deficiencies in the prior art, and provides a method that can solve the problem of poor stability when steel slag is used as the inorganic thermal insulation mortar material, and can effectively solve the pollution problem caused by desulfurization ash stockpiling, and improve the comprehensive performance of desulfurization ash. Utilized insulating mortar containing semi-dry desulfurization ash and preparation method

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  • Thermal insulation mortar containing semidry method desulfurized fly ash and preparation method therefor
  • Thermal insulation mortar containing semidry method desulfurized fly ash and preparation method therefor

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Embodiment Construction

[0028] The present invention is described in detail below:

[0029] Table 1 is the raw material value list of each embodiment of the present invention and comparative examples;

[0030] Table 2 is a list of the mechanical properties of the various embodiments of the present invention and comparative examples.

[0031] Each embodiment of the present invention is produced according to the following steps:

[0032] 1) Dry the semi-dry desulfurization ash and steel slag, and control the water content by weight to no more than 1%;

[0033] 2) Crushing semi-dry desulfurization ash and steel slag, the particle size of semi-dry desulfurization ash is controlled at 2 / kg;

[0034] 3) Fully mix the semi-dry desulfurization ash, steel slag, cement, slag and additives;

[0035] 4) Add water, and add according to 85~100% per kilogram of vitrified microbead insulation sand, and stir evenly;

[0036] 5) Add vitrified bead insulation sand and stir evenly;

[0037] 6) Packaging, ready to ...

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Abstract

Provided is thermal insulation mortar containing semidry method desulfurized fly ash. The thermal insulation mortar containing semidry method desulfurized fly ash comprises the following raw materials, by weight, 10-15% of ore slag with a granularity of being less than or equal to 0.074mm, 36-42% of thermal insulation sands with a granularity of being less than 2mm, 0.5-4% of semidry method desulfurized fly ash with a granularity of being less than 1mm, 36-44% of steel slag with a granularity of being less than 2mm, 3-8% of cement and 0.2-0.5% of additives. In addition, water with a weight of being 85-100% of the total weight of the added glass bead thermal insulation sands is added. The preparation method is as follows: the semidry method desulfurized fly ash and the steel slag are dried; the semidry method desulfurized fly ash and the steel slag are crushed; the semidry method desulfurized fly ash, the steel slag, the cement, the ore slag and the additives are stirred and mixed; water is added and the mixture is stirred uniformly; glass bead thermal insulation sands are added and the mixture is stirred uniformly; packaging is carried out and the product is standby. The defect can be overcome that the stability is poor when steel slag is employed as an inorganic thermal insulation mortar materials, the pollution problem caused by desulfurized fly ash stockpiling can be solved effectively, and the desulfurized fly ash integration utilization is raised.

Description

technical field [0001] The invention relates to a building material, in particular to a thermal insulation mortar containing semi-dry desulfurization ash and a preparation method thereof. Background technique [0002] With the increase of semi-dry desulfurization projects, the production of semi-dry desulfurization ash is increasing year by year. According to statistics, a 360m 2 The sintering machine adopts full flue gas desulfurization, which produces 40,000 to 50,000 tons per year. The main components of desulfurization ash are calcium sulfite, calcium sulfate, calcium carbonate and calcium hydroxide. At present, desulfurization ash is mostly used as an additive to prepare cement, bricks or inorganic materials. Due to the high content of calcium sulfite in desulfurization ash, its practical application is subject to various restrictions. At the same time, steel slag is a kind of industrial waste slag produced during steelmaking, and its quantity is generally 10-20% of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/12C04B14/06C04B18/14C04B14/24C04B24/38
CPCY02W30/91
Inventor 卢丽君薛改凤黄建阳方宏辉朱书景康凌晨刘瑛
Owner 武钢集团有限公司
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