Gradient utilization device and method for residual pressure and residual heat in still kettles for aerated concrete blocks

Abstract

The invention relates to a gradient utilization device and method for residual pressure and residual heat in still kettles for aerated concrete blocks. The gradient utilization device comprises an airdistributing cylinder, a still kettle device, an air collecting pipeline and a recycling device; the still kettle device comprises a first still kettle, a second still kettle and a third still kettle, and the air distributing cylinder communicates with the first still kettle, the second still kettle and the third still kettle through steam pipelines; a first air return pipe is connected between the first still kettle and the second still kettle, and a second air return pipe is arranged between the first still kettle and the third still kettle; valves are arranged on the first air return pipeand the second air return pipe; the first still kettle, the second still kettle and the third still kettle are all connected with exhaust pipes, and the three exhaust pipes are provided with valves and all connected with the air collecting pipeline; a recovery pipe is arranged on the air collecting pipeline, a diversion tank is arranged at the bottom of the recovery pipe, and a hot water pipe is arranged at the bottom of the diversion tank; and the recycling device comprises a heating tank, and the heating tank is connected with a water inlet pipe and a water outlet pipe. The gradient utilization device has the effect of conveniently recycling high-temperature and high-pressure steam remained in the still kettles.

Description

technical field [0001] The present application relates to the field of building material processing, in particular to a cascaded utilization device and method for utilizing residual pressure and residual heat of an autoclave of aerated concrete blocks. Background technique [0002] At present, the construction industry mostly adopts cement pouring frame structure, which requires a large amount of wall materials to fill and construct the wall. Among them, the autoclaved aerated concrete block is a new type of energy-saving and environmentally friendly material. At present, the building materials industry generally uses an autoclave to autoclave the green body of the aerated concrete block. The heat preservation and pressure holding time is generally 6 hours. [0003] After the autoclave reaction is finished, more high-temperature and high-pressure steam remains in the autoclave. Most of the remaining high-temperature and high-pressure steam in the prior art is directly discha...

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that there is a problem that the remaining high-pressure steam after autoclave autoclaving cannot be reused well, resulting in waste of resources

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