Cold delivery rate self-adaptive control system for asphalt mixing plant

Abstract

The invention belongs to a road face construction machinery, which relates to a control system of an asphalt concrete mixing device, in particular to a cold feed speed adaptive control system of the asphalt concrete mixing device. The cold feed speed adaptive control system of the asphalt concrete mixing device comprises a material level device which is arranged at the bin of the mixing device and is used for obtaining a material level height signal, the signal output part of the material level device is connected with the signal input terminal of a transmitter, the signal output terminal of the transmitter transmits the material level height signal to an industrial control computer, the industrial control computer sends a control instruction signal to the analog current frequency instruction input terminal of a converter, the converter is connected with the speed control circuit of a cold feed motor. The cold feed speed adaptive control system can make a real-time adaptive control on the speed of the cold feed motor according to the material level of the bin of the mixing device, thus the continuous and even feed is ensured, the material overflow is reduced, the energy consumption is lowered, and the ingredient quality is ensured.

Description

technical field [0001] The invention belongs to road construction machinery, and relates to a control system of asphalt concrete mixing equipment, in particular to an adaptive control system for cold feeding speed of asphalt concrete mixing equipment. Background technique [0002] When the existing asphalt concrete mixing equipment is used for material mixing, it is generally necessary to add a variety of aggregates. In order to ensure that various aggregates are added in a specific proportion, the addition speed needs to be controlled. In traditional equipment, the speed control of cold feed is mostly used Manual control is not only cumbersome to operate, but also leads to waiting and overflowing of materials, resulting in reduced productivity, waste of energy, and the accuracy of ingredients cannot be guaranteed. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an adaptive control system for cold feed speed of a...

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Problems solved by technology

[0002] When the existing asphalt concrete mixing equipment is used for material mixing, it is generally necessary to add a variety of aggregates. In order to ensure that various aggregates are added in a specific proportion, the addition speed needs to be controlled. In traditional equipment, the speed control of cold feed is mostly used Manual control is not only cumbersome to operate, but also leads to material shortage and overflow, resulting in reduced productivity, waste of energy, and the accuracy of ingredients can not be guaranteed

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