Raw coal proportioning control system and method with security warning function

Abstract

The invention discloses a raw coal proportioning control system with the security warning function. The system includes a proportioning device and a controlling device, the proportioning device includes a secondary conveying belt and a primary conveying belt, the secondary conveying belt includes a first coal conveying belt body and a second coal conveying belt body, the controlling device includes a PLC and a coal conveying belt motor, the input end of the PLC is connected with an input circuit, a primary conveying belt electronic scale and a secondary conveying belt electronic scale, and the output end of the PLC is connected with a sound-light alarm module and a speed regulation module. The invention further discloses a raw coal proportioning control method with the security warning function. The system is simple in structure and reasonable in design, data of the coal conveying amount of raw coal exploited from different coal seams are compared and calculated through the PLC, manual proportioning is replaced, the proportioning error is reduced, the proportioning coal quality is ensured, the system is convenient to use and operate, the practicability is high, the use effect is good, and the system is convenient to apply and popularize.

Description

technical field [0001] The invention belongs to the technical field of coal devices, and in particular relates to a raw coal ratio control system and method with safety reminders. Background technique [0002] In the production of washed raw coal, the washed raw coal comes from different coal mines and different coal seams, and its optionality is different. In order to meet the requirements of different users for product quality, coal plants need to take into account the selectivity, ash content, sulfur content indicators and recovery rate to achieve the goal of maximizing profits, and mix the washed raw coal with different proportioning schemes to form a variety of Components of the washed raw coal. In the current ratio of raw coal for washing, it is necessary to carry out artificial rationing according to the coal quality of each coal seam to ensure that the composition of raw coal for washing into the washing workshop is stable, but there are large artificial ratio error...

AI Technical Summary

Problems solved by technology

In the current ratio of raw coal for washing, it is necessary to carry out artificial rationing according to the coal quality of each coal seam to ensure that the composition of raw coal for washing into the washing workshop is stable, but there are large artificial ratio errors in production, and poor operability. Lack of management and other issues lead to the inability to accurately mix the required raw coal for washing, and the quality of raw coal for washing has changed significantly

When the coal contains ash and gangue, it will cause great difficulties in the washing of raw coal for washing, which will seriously affect the washing amount of raw coal for washing, thereby limiting the output of raw coal for washing

Affected by changes in coal quality, the coal washing plant needs to adjust the concentration of the iron medium solution several times when washing raw coal. If the concentration of the iron medium solution is not adjusted properly, the slime water cannot be effectively controlled. The environmental pollution caused by black coal and the great restriction on the washing volume of coal washing plants have seriously affected the output of clean coal in coal mines; at the same time, due to the limitation of washing quality, it is impossible to wash high-quality usable clean coal according to the standard requirements

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