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A sampling and preparation device and monitoring method capable of monitoring the total moisture loss of coal samples on-line

A technology of sample collection and full moisture, applied in the direction of analysis materials, instruments, etc., can solve the problems that affect the acceptance of coal quantity, affect the acceptance of coal quality, and increase the cost of coal, so as to save coal cost and improve the management of coal quality acceptance The effect, the effect of the overall structure design is reasonable

Active Publication Date: 2017-09-08
HUADIAN ELECTRIC POWER SCI INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nowadays, the coal settlement of most coal-fired enterprises is based on the low-level calorific value of the coal received basis. The total moisture of coal not only affects the acceptance of coal quantity, but also because it is directly related to the low-level calorific value of the received basis, it will also affect the coal. Quality acceptance
However, in the existing coal quality inspection and acceptance, the total moisture value of coal samples often ignores the moisture loss in the process of coal sampling and preparation, which in turn leads to high coal quality pricing and increased coal costs for enterprises

Method used

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  • A sampling and preparation device and monitoring method capable of monitoring the total moisture loss of coal samples on-line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: as figure 1 As shown, a sampling and preparation device capable of monitoring the total moisture loss of coal samples on-line includes a sampling system and a sample preparation system. The sampling system includes a sampling machine 1 and a primary feeding device 2. The sample preparation system includes a crusher 3, Secondary feeding device 4, shrinking device 5, described sampling machine 1 comprises the sampling head 11 of collecting coal sample, and described primary feeding device 2 is provided with the primary feeding belt 21 of transmission coal sample, on the primary feeding belt 21 A belt scale 22 is installed, and the primary feeding device 2 is provided with a feed port and a discharge port, and the discharge port of the primary feeding device 2 is connected with the crusher 3, and the discharge port of the crusher 3 passes through The pipeline is connected with the air extraction device 7, and a small cyclone separator 8 is arranged on the con...

Embodiment 2

[0026] Embodiment 2: as figure 1 As shown, the difference between a sampling and preparation device capable of monitoring the total moisture loss of coal samples on-line and that of Embodiment 1 is that a hopper 23 is provided above the feed port of the primary feeding device 2, and the setting of the hopper 23, It is convenient for the sampling head 11 to send the collected coal sample to the primary feeding device 4 .

Embodiment 3

[0027] Embodiment 3: as figure 1 As shown, the difference between a sampling and preparation device capable of monitoring the total moisture loss of coal samples on-line and Embodiment 1 or Embodiment 2 is that the connecting pipeline between the small-sized cyclone separator 8 and the temperature and humidity measuring instrument 9 is equipped with There is a pulverized coal filter 10, and the pulverized coal filter 10 can further intercept the small particle coal dust in the air separated by the small cyclone separator 8, so that the air passing through the temperature and humidity measuring instrument 9 is clean air, and then The accuracy of data determination is ensured.

[0028] In embodiment 1, embodiment 2, embodiment 3 of the present invention described in the sampling and preparation device that can monitor the total moisture loss of coal sample online, the specific structural settings of sampling machine 1, sampling head 11, shrinking divider 5 and the primary supply...

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Abstract

The invention relates to a sampling and preparation device and monitoring method capable of monitoring the total moisture loss of coal samples online. The sampling and preparation device includes a sampling system and a sample preparation system. The sampling system includes a sampling machine and a primary feeding device. The sample system includes a crusher, a secondary feeding device, and a shrinker. The primary feeding device is equipped with a primary feeding belt, and a belt scale is installed on the primary feeding belt. The devices are connected, a small cyclone separator is installed on the connecting pipeline between the air extraction device and the crusher, a temperature and humidity measuring instrument is installed on the connecting pipeline between the small cyclone separator and the air extraction device, and the small cyclone separator The discharge port of the device is connected to the secondary feeding device, and the temperature and humidity measuring instrument and the belt scale are all connected to the data acquisition device, and the data acquisition device is connected to the host computer. The sample collection and preparation device of the invention can reasonably correct the total moisture value of coal and reduce the cost of coal used by enterprises.

Description

technical field [0001] The invention relates to the field of coal sample sampling and preparation, in particular to a sampling and preparation device capable of online monitoring of total water loss of coal samples and an online monitoring method for total water loss of coal samples. Background technique [0002] According to statistics, the daily coal consumption of domestic large and medium-sized power plants can reach thousands of tons, or even 10,000 tons. According to the traditional manual sampling method to check and accept coal, the workload is huge, the work efficiency is low, and the working environment is harsh, which is even worse. The important thing is that the quality of sampling is difficult to be guaranteed. Not only power plants, but coal-using enterprises in all walks of life are gradually implementing the mechanization of coal-fired sample collection and preparation, which is an inevitable trend of development. Today's sampling machine actually includes ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N35/00
Inventor 曾彬秦岭汪后港张磊陆超王嘉瑞李小江
Owner HUADIAN ELECTRIC POWER SCI INST CO LTD