Proportioning material metering method, proportioning weight controller, system and concrete mixing plant

Abstract

The invention provides a proportioning material metering method, which comprises the following steps that: a proportioning weight controller receives weighing hopper initial weight G1 measured by a weight sensor and controls a feeder to start to feed proportioning materials into a weighing hopper; the proportioning weight controller calculates and stores metering speed V; when the weighing hopper weight G=G1+M-L measured by the weight sensor is received, the proportioning weight controller controls the feeder to stop feeding the proportioning materials into the weighing hopper; the proportioning weight controller receives the weighing hopper weight G3 measured by the weight sensor when the hopper door of the feeder is fully closed, and calculates a difference value L' of adjusted proportioning weight; and the proportioning weight controller determines a corrected difference value L'' which is used for the next time of metering according to the metering speed of the current time and the previous time and the difference value of the adjusted proportioning weight. Besides, the invention additionally provides the proportioning weight controller, a proportioning material metering system and a concrete mixing plant for realizing the method. The proportioning material metering method, the proportioning weight controller, the proportioning material metering system and the concrete mixing plant provided by the invention have the advantages that the deviation caused by external factors to metering results is avoided and the metering accuracy is improved.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a batching measurement method, a counterweight controller, a system and a concrete mixing station. Background technique [0002] Concrete is a material widely used in construction, which is made by measuring and mixing sandstone, water, powder additives, liquid additives and other raw materials according to a certain proportion. The quality of concrete often affects the quality of the entire construction project. Although there are many factors that affect the quality of concrete, accurate counterweight materials in the production process are the key. The existing concrete counterweight material adopts the method of incremental feeding. This method of counterweight material not only takes a long time but also has a complicated operation process. The equipment also needs to use independent material hoppers and weighing hoppers. The structure is complex, the volume is large, a...

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Problems solved by technology

[0003] The core part of concrete mixing plant control is accurate and rapid batching measurement, but the current measurement method and equipment for reducing batching can not achieve accurate and rapid measurement, so it is necessary to find a more accurate measurement method to accurately weight materials

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