Vertical vibrating pre-forming production process for large-diameter reinforced concrete drainage pipe

Abstract

The invention discloses a vertical vibrating pre-forming production process for a large-diameter reinforced concrete drainage pipe. A wet production process is adopted, pipe dies comprising a bottom die, an internal die and an external die are vertically stood on a ground or in a maintenance kiln, and an inserted vibration rod or an attached vibrator vibrates a concrete mixture in the pipe dies to pre-form the drainage pipe. The process comprises the steps of: manufacturing a reinforcement cage, mounting the reinforcement cage, cleaning the pipe dies, painting with a separant, assembling the pipe dies, stirring concrete, concreting, maintaining, de-molding and stacking. According to the production process, construction is facilitated, natural maintenance can be realized, energy sources can be saved, and industrial waste residues air-granulated steel slag can be used instead of yellow sand to reduce the discharge of the waste residues. Moreover, only about a half of equipment of a centrifugal process and a roller suspension process is adopted, so that more than a half of investment can be saved.

Description

technical field [0001] The invention relates to a prefabricated production process of a reinforced concrete drainage pipe. Background technique [0002] Reinforced concrete drainage pipes (hereinafter referred to as drainage pipes) are widely used in various drainage projects and pipeline projects. Originally, small and medium-diameter drainage pipes were generally prefabricated by horizontal centrifugal and suspension roller forming processes. However, with the expansion of the city and the increase in the number of residents, the demand for large-diameter drainage pipes has increased significantly year by year. Due to the defects of the forming process, the horizontal centrifugal and suspension roller forming processes are not suitable for the prefabrication of medium and large-diameter drainage pipes. Through investigation, it is found that the prefabrication of large-diameter drainage pipes using vertical vibration forming technology is a relatively economical and applic...

AI Technical Summary

Problems solved by technology

However, with the expansion of the city and the increase in the number of residents, the demand for large-diameter drainage pipes has increased significantly year by year. Due to the defects of the forming process, the horizontal centrifugal and suspension roller forming processes are not suitable for the prefabrication of medium and large-diameter drainage pipes. Through investigation, it is found that the prefabrication of large-diameter drainage pipes using vertical vibration forming technology is a relatively economical and applicable construction method