Autoclaved fly ash brick and preparation process thereof

Abstract

The invention discloses an autoclaved fly ash brick and a preparation process thereof. The autoclaved fly ash brick comprises the following raw materials in parts by weight: 40-48 parts of fly ash, 18-23 parts of aeolian sand, 1-3 parts of desulfurized gypsum, 12-20 parts of coarse slag and 8-13 parts of granulated slag, wherein a brick billet is formed by pressing a mixed material through a brickforming device. According to the brick forming device, powder feeding and brick pressing can be conducted at a time; compared with a traditional pressing method, the process of the invention is convenient and fast, and can transfer a pressing mold after pressing is completed so as to form assembly line type production, so that production efficiency is improved, the product quality is convenient to detect, and the uniformity of the produced fly ash bricks is improved; and compared with traditional clamping and positioning, the process of the invention has the following characteristics that theposition of the pressing mold is not fixed, and the position of the pressing mold is limited through the position adjusting device, so that under the condition that positioning and pressing of the pressing mold are not affected, transferring of the pressing mold is facilitated.

Description

technical field [0001] The invention belongs to the technical field of building material processing, and in particular relates to an autoclaved fly ash brick and a preparation process thereof. Background technique [0002] Solid clay brick is a commonly used building material, but because it will consume a lot of land resources, and the production method will consume a lot of energy and cause serious environmental pollution, so a variety of energy-saving building brick products have been obtained In order to achieve rapid development and application, autoclaved fly ash brick is one of them. [0003] The production of autoclaved fly ash bricks is made of power plant fly ash, lime, gypsum and aggregate as the main raw materials. Roasting at high temperature will not produce pollution, and the processing efficiency is high. It is a brick product that is widely used at present. In the prior art, when producing autoclaved fly ash bricks, since the powder feeding and pressing mol...

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Problems solved by technology

[0002] Solid clay brick is a commonly used building material, but because it will consume a lot of land resources, and the production method will consume a lot of energy and cause serious environmental pollution, so a variety of energy-saving building brick products have been obtained In order to achieve rapid development and application, autoclaved fly ash brick is one of them

[0003] The production of autoclaved fly ash bricks is made of power plant fly ash, lime, gypsum and aggregate as the main raw materials. Roasting at high temperature will not produce pollution, and the processing efficiency is high. It is a brick product that is widely used at present. In the prior art, when producing autoclaved fly ash bricks, since the powder feeding and pressing molding are separated If it is carried out, the process will be extended, the complexity of the production process will be increased, and the production efficiency will be reduced, and the inconsistency of feeding, pressing and unloading will reduce the continuity of production, and it will not be possible to carry out continuous and assembly line production, resulting in product quality. Not uniform, in order to solve the above problems, the present invention provides the following technical solutions

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