Is there any enterprise producing steam light sand aerated concrete slab in Taizhou?

Aerated concrete products have been developed abroad for nearly a hundred years and have become a pillar industry in the construction industry. China has introduced this technology for nearly forty years, and the production technology and equipment tend to be mature. Aerated concrete has the advantages of light bulk density, high thermal insulation performance, good sound absorption effect, certain strength and machinability, and rich raw materials for production. Especially using fly ash as raw material can not only comprehensively utilize industrial waste residue and control environmental pollution, but also create good social and economic benefits. It is a wall material to replace the traditional solid clay brick, and has been strongly supported by the national wall reform policy, tax policy and environmental protection policy for many years.

Second, the aerated concrete production process

According to the types and quality of raw materials and the technological characteristics of main equipment, aerated concrete can be produced by different processes. Generally, however, fly ash or silica sand is ground into slurry with water, lime powder, proper amount of cement, gypsum and foaming agent, stirred, injected into the formwork, and cut into blocks or plates of various specifications after static oxygen foaming curing, and then sent to an autoclave by a steam curing vehicle to form a porous lightweight aerated concrete product under high-temperature saturated steam curing.

Firstly, the stored raw materials are metered and mixed (1), and then put into the pouring mixer. (2) after stirring evenly, pre-curing the green body at pouring temperature and time; (4) after the green body reaches a certain hardness, hanging the mold and the green body to a cutting machine with an overturning spreader. The turnover spreader completes the following functions: a, the mold is turned 90 degrees in the air (5) (one side plate of the mold becomes the bottom plate for supporting the blank until the finished product is steamed out) b, the mold is demoulded on the pallet or cutting bracket (6), and the removed mold base and the returned steamed out side plate (16) are reassembled into the mold (17) for cleaning. Cutting the blank in six steps on a cutting machine; A, vertically cutting both sides of a blank (7); b, horizontally and vertically cutting (8); Finally, transverse horizontal cutting (9) is carried out. The cut green body and the bottom plate are hoisted to the steam curing trolley (10) by the semi-finished product spreader, and then put into the autoclave (1 1) for high-temperature steam curing (12). After steam curing, the finished product is discharged from the autoclave (13).

Third, production equipment and equipment

The selection and quantity of aerated concrete production equipment are determined according to the process design. According to the process design, pouring can be divided into fixed pouring and moving pouring. At present, the domestic cutting method is mainly turnover cutting, and other batching systems and autoclaved curing equipment are similar.