Method for recovering condensation water in production process of gas concrete and recovery system thereof

Abstract

The invention discloses a method for recovering condensation water in the production process of gas concrete. The method comprises the following steps of: firstly, sending the saturated steam produced by a boiler to a still kettle in which gas concrete slabs or blocks are placed, and heating the gas concrete product, wherein the saturated steam is cooled to form the condensation water through the heat exchange; secondly, sending the condensation water drained from the still kettle to a plurality of secondary heating user devices filled with materials, and pre-heating the materials by using the afterheat of the condensation water, wherein the saturated steam is cooled to form the secondary condensation water through the heat exchange; and thirdly, after the secondary condensation water drained from the secondary heating user device satisfies the requirement of boiler water feeding through the purification treatment, sending the secondary condensation water to the boiler of the first step for recycle. By adopting the method, the afterheat resources and water resources discharged from the production process are sufficiently, reasonably and gradually utilized, and the energy and resource consumptions and the production cost of product per unit are reduced.

Description

technical field [0001] The invention relates to the field of recovery of condensed water in the production process of air-entrained concrete. Background technique [0002] With the continuous improvement of our country's requirements for the thermal insulation performance of building envelopes, the amount of autoclaved aerated concrete with good thermal insulation performance has increased rapidly, and the production enterprises and production scale have also increased sharply. However, due to the limitation of design, process, management and technical level, most of the air-entrained concrete enterprises in my country currently have a large amount of direct discharge of steam condensate, resulting in serious waste of waste heat and water resources, and high product energy consumption and cost. Let alone this common problem. To this end, research and development of a new technology for condensate recovery in the production process of aerated concrete can make full, reasonabl...

AI Technical Summary

Problems solved by technology

[0003] The current technological process is that the steam generated by the boiler is sent to the autoclave, the pre-curing room, the marshalling before the kettle, the slurry tank and other heat users through the sub-cylinder respectively, and the condensed water generated after the steam is directly drained, which greatly wastes energy and water resources

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