Production process of high-strength concrete drainage pipe and production equipment thereof

Abstract

According to the technical scheme, a production process of a high-strength concrete drainage pipe comprises the following steps that cement, fine sand and coarse stone are metered through a metering device; the metered raw materials are conveyed into a stirring device to be stirred; stirred slurry is directly discharged into a mold of a centrifugal forming device for concrete pipe forming; and theprocessed concrete pipe is centrifugally formed, and the concrete pipe is conveyed into a steam curing pool through a hoisting device for curing. The concrete pipe produced by the production processis high in structural strength and good in quality.

Description

technical field [0001] The invention relates to the technical field of concrete pipe processing equipment, in particular to a high-strength concrete drainage pipe production process and production equipment. Background technique [0002] Concrete pipe is a pipe made of concrete or reinforced concrete. Its forming methods include centrifugal method, vibration method, rolling method, vacuum operation method, and combined methods of rolling, centrifugal and vibration. In order to improve the performance of concrete pipes, China and many other countries have developed more prestressed concrete pressure pipes. This pipe is equipped with longitudinal and hoop prestressed reinforcement, so it has high resistance to cracking and impermeability. In the 1980s, China and some other countries developed self-stressed reinforced concrete pipes. Its main feature is to use the expansion of self-stressed cement (see special cement) to generate prestress during the hardening process, which s...

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Problems solved by technology

In the 1980s, China and some other countries developed self-stressed reinforced concrete pipes. Its main feature is to use the expansion of self-stressed cement (see special cement) to generate prestress during the hardening process, which simplifies the manufacturing process; among them, the centrifugal method is commonly used. The preparation method, during preparation, usually transports the raw materials into the mixing mechanism through the feeding device with metering function, and then introduces them into the concrete grinding mold for centrifugal processing and molding after being stirred by the mixing mechanism; The completed concrete is a viscous slurry. Therefore, when the concrete is discharged from the mixing device, there is a phenomenon of discontinuous discharge, resulting in uneven density of the finished concrete, which affects the quality of the concrete pipe. In addition, part of the slurry will also accumulate. On the inner wall of the mixing tank, the amount of material discharged is incorrect. At this stage, the unloading operation is usually performed by manually beating the mixing tank, which is inefficient and unsafe.

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