Safety control system and control method for powder silo of concrete mixing station

Abstract

The invention discloses a safety control system applied to powder warehouses of a concrete mixing station and a control method thereof. The safety control system is characterized in that an authorization control computer is mounted in a weight house; a normally-closed electronic control valve and a normally-opened tube bag valve which are started and closed under authorization control of the authorization control computer are mounted in a feeding tube of each powder warehouse; the normally-closed electronic control valves on the feeding tubes of corresponding powder warehouses can be only opened after the authorization control computer sends authorization signals, so that the powder warehouses can be connected with a material transporting trolley; the situation that the wrong materials are fed into the powder warehouses can be avoided; when the material level reaches a warning level, a sound-light alarming device is capable of reminding workers to stop feeding in time; even if the workers cannot stop feeding in time, a PLC controller is capable of controlling the normally-opened tube bag valves to start and forcedly close the feeding tubes, so that the danger of blasting of warehouses can be effectively avoided. The safety control system is capable of achieving automatic operation and stop of detection protection equipment; the automation is achieved; the energy is saved; the problems of the prior art are solved.

Description

technical field [0001] The invention belongs to the technical field of concrete mixing plants, and specifically relates to a safety control system and a control method for a powder silo of a concrete mixing plant. Background technique [0002] The feeding of the powder bin of the concrete mixing plant is a high-pollution, dusty, high-frequency and complicated operation process. Improper operation during the working process will easily lead to problems such as feeding wrong materials, warehouse explosion, and a large amount of powder, which will not only generate a lot of dust, pollute the environment of the entire mixing plant, but also cause mixing of different powder materials in the mixing plant, seriously affecting the quality of concrete production. and efficiency. Contents of the invention [0003] An object of the present invention is to provide a safety control system for the powder silo of a concrete mixing plant that can ensure the correctness of feeding the pow...

AI Technical Summary

Problems solved by technology

[0002] The feeding of the powder bin of the concrete mixing plant is a high-pollution, dusty, high-frequency and complicated operation process

Improper operation during the working process will easily lead to problems such as feeding wrong materials, warehouse explosion, and a large amount of powder, which will not only generate a lot of dust, pollute the environment of the entire mixing plant, but also cause mixing of different powder materials in the mixing plant, seriously affecting the quality of concrete production. and efficiency

Images