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Coal pile density measuring method

A technology of density measurement and density, which is applied in the direction of measuring devices, specific gravity measurement, instruments, etc., can solve the problems of inability to measure coal pile density, inability to obtain accurate coal storage, inaccurate measurement, etc., and achieve low labor intensity and measurement Convenience and logical effect

Pending Publication Date: 2020-11-27
华润电力(江苏)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method not only consumes a lot of labor costs, but also the measurement is not accurate
In this regard, in the prior art, it is proposed to use a laser panning instrument and a drone to scan the space volume of the coal pile instead of manual coal panning, but this type of equipment can only measure the volume of the coal pile, but cannot measure the density of the coal pile , so that it is impossible to obtain accurate coal storage, and there are still relatively large defects in the operation of coal panning

Method used

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Embodiment Construction

[0026] In order to clearly illustrate the technical features of this patent, the following describes this patent in detail through specific implementation methods.

[0027] The present invention measures the coal bulk density by means of a measuring device, the measuring device includes an electronic scale, a density box, a gland and a lifting device, the density box is provided with a cavity with an open top, and the gland and the lifting device It can be lifted to a specified height under the action of the lifting device and then move downward; the lifting device can be a manual lifting device with a cable and a fixed pulley, or an automatic lifting device with a cable and a hoist; or Slightly pressurize and repressurize the coal by applying pressure to the gland with pressure equipment such as hydraulic pressure or air pressure. pressure.

[0028] The measuring method of described coal bulk density is carried out as follows:

[0029] S1, measurement without pressure;

[...

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Abstract

The invention discloses a coal pile density measuring method. The invention relates to the technical field of coal pile density measurement. The coal pile density measurement method can realize accurate measurement of the coal pile density so as to perform efficient coal inventory operation in combination with the volume of the coal pile. The method for measuring the density of the coal pile comprises the following steps: S1, carrying out non-pressurized measurement; S1.1, sampling; S1.2, weighing for the first time; S1.3, calculating for the first time; S2, slightly pressurizing and measuring; S2.1, carrying out removing ; S2.2, carrying out pressurizing; S2.3, supplementing a sample; S2.4, weighing for the second time; S2.5, calculating for the second time; S3, re-pressurization measurement by S3.1, carrying out secondary pressurization; S3.2, carrying out secondary sample supplementation; S3.3, weighing for the third time; and S3.4, calculating for the third time; and S4, calculating the coal pile density. The method has the advantages of simple steps, clear logic, convenience in measurement, high accuracy, low manual labor intensity and the like on the whole.

Description

technical field [0001] The invention relates to the technical field of coal bulk density measurement. Background technique [0002] At present, coal combustion in thermal power plants accounts for about 70% of production costs. Coal yard management is an important part of production management, which has a direct impact on the production and operation of power plants, economic indicators, and risk control. Therefore, it is urgent to quickly and accurately measure The amount of coal stored in the coal yard is convenient for the power plant to carry out cost accounting, economic benefit evaluation and scientific management. The traditional measurement method is to use a bulldozer to shape the coal pile, artificially pile it into a trapezoidal shape, and then measure it with a tape measure. This method not only consumes a lot of labor costs, but also the measurement is not accurate. In this regard, in the prior art, it is proposed to use a laser panning instrument and a drone...

Claims

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Application Information

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IPC IPC(8): G01N9/02G01N9/36
CPCG01N9/02G01N9/36G01N2009/024
Inventor 张铁刚刘建忠陈以号
Owner 华润电力(江苏)有限公司
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