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Automatic feed control method

A control method and automatic feeding technology, which is applied in the direction of non-electric variable control, flow control, control/regulation system, etc., can solve problems such as inaccurate measurement of loading flow, and achieve the effect of ensuring safety

Active Publication Date: 2012-11-28
CHINA SHENHUA ENERGY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the inaccurate measurement of the loading flow rate existing in the existing method of feeding the dumper, the present invention proposes an automatic feeding control method

Method used

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Embodiment Construction

[0012] figure 2 It is a flow chart of the automatic feeding control method according to the embodiment of the present invention.

[0013] In step 210, the amplification factor function K(f) is first determined.

[0014] K(f) satisfies g(f)=K(f) f, where f is the vibration frequency of the funnel, g(f) is the material flow rate supplied in the funnel with the vibration frequency f, for different vibration frequencies f, from The material flow rate supplied in the funnel will also be different. The amplification factor function K(f) represents the relationship between the material flow rate and the vibration frequency, and since this relationship is nonlinear, K(f) is a function of the frequency f.

[0015] In one embodiment of the present invention, the amplification factor K(f) can be determined as follows:

[0016] First, a set of hopper vibration frequency data and a set of material flow data corresponding to the set of vibration frequency data are collected.

[0017] Th...

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Abstract

The invention provides an automatic feed control method. In the method, the target vibration frequency of each funnel is determined by determining a magnification factor function, acquiring a target flow function and pre-estimating the target flow function, so that target shipment flow can be more accurately realized, the material flow of each funnel can be individually adjusted, and the full automation of the shipment (piling) process is made possible while the safety of the entire shipment process is guaranteed.

Description

technical field [0001] The invention relates to the field of automatic feeding control, in particular to an automatic feeding control method. Background technique [0002] In the main coastal coal ports in China (such as Huanghua Port, Qinhuangdao Port, etc.), the dumper is a commonly used large-scale special coal unloading and loading tool. When working, the dumper clamps and flips the train carriage loaded with materials (such as coal), pours the materials in the carriage into multiple hoppers, and pours the materials onto the belt conveyor through the hoppers and vibrating feeder. And further conveying, so that shipping (or stacking coal on the yard). [0003] Generally, the combination of a hopper and a vibrating feeder can be called a dumper feeding system. According to the different loading scales, the types of dumpers are also different. They can be divided into dumpers that turn over one carriage at a time, and dumpers that turn over two carriages at a time. The n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D7/00
Inventor 董传博李长安李靖宇杨波邢承斌刘金光
Owner CHINA SHENHUA ENERGY CO LTD