Additive supply system of building material preparation device

Abstract

The invention discloses an additive supply system of a building material preparation device. The additive supply system comprises weighing devices (31 and 32), a plurality of additive tanks (11 and 12) and a plurality of pumps (21 and 22), and the additive supply system is characterized by further comprising a first control valve (81) and a second control valve (82), an inlet of the first control valve (81) is communicated with the plurality of additive tanks (11 and 12), an outlet of the first control valve (81) is communicated with the inlets of the plurality of pumps (21 and 22), an inlet of the second control valve (82) is communicated with the outlets of the plurality of pumps (21 and 22), an outlet of the second control valve (82) is communicated with the weighing devices (31 and 32), and any one of the additive tanks (11 and 12) can be communicated with the weighing devices (31 and 32) through one of the pumps (21 and 22) by virtue of the first control valve (81) and the second control valve (82). The additive supply system improves the working efficiency and further improves the working efficiency of the whole building material preparation device.

Description

technical field [0001] The present invention relates to the field of building material preparation devices, such as concrete mixing equipment, asphalt mixing equipment, etc., and specifically relates to an admixture supply system of a building material preparation device. Background technique [0002] Admixtures are widely used in the preparation of various building materials, such as the preparation of concrete and asphalt. Taking concrete mixing plant (concrete mixing equipment) as an example, it usually includes batching machine, inclined belt conveyor, main building, mixing host, weighing system, admixture supply system, electrical system, etc. Currently, two or more admixtures are generally added to concrete, and the existing admixture supply system usually uses multiple sets of mutually independent supply units to supply different admixtures. For example figure 1 Shown is an admixture supply system for supplying two admixtures, consisting of two separate supply units...

AI Technical Summary

Problems solved by technology

[0003] Due to the continuous production of concrete, the pumps 21, 22 need to be turned on and off at least once in each cycle, and the frequent start and stop will be unfavorable to the pumps 21, 22. In actual production, the pumps 21, 22 are prone to failure, resulting in additional The working efficiency of the agent supply system is low. Once a certain pump 21, 22 breaks down, it will take a long time to repair or replace, which will affect the working efficiency of the entire concrete mixing plant.

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