A raw coal push-pull coal hopper sampling device and coal storage system

A technology of sampling device and coal hopper, which is applied in the direction of sampling device, sampling, measuring device, etc., can solve problems such as difficult sealing, pipe blockage, coal cannot be taken out, etc., to achieve improved working environment, strong operability, and maintenance simple effect

Active Publication Date: 2021-06-18
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. For the measuring points sealed by flanges, the flanges need to be removed when taking coal. However, due to the positive pressure there, once the flanges are removed, the raw coal will not stop gushing out. Not only is it difficult to seal it again, but also T

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  • A raw coal push-pull coal hopper sampling device and coal storage system
  • A raw coal push-pull coal hopper sampling device and coal storage system
  • A raw coal push-pull coal hopper sampling device and coal storage system

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0034] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinatio...

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Abstract

The invention discloses a raw coal push-pull type coal hopper sampling device and a coal storage system, comprising a sampling channel arranged in the middle of the coal storage device, the upper and lower end surfaces of the sampling channel are respectively provided with upper and lower sealing plates, and the upper sealing plate There is a gap in the middle of the plate, which can make the coal sample fall; there is a guide rail between the upper and lower sealing plates, and a sampling box is movable on the guide rail, and the sampling box moves along the guide rail between the upper and lower sealing plates, so that the falling coal The sample is delivered to the outside of the sampling channel. The invention ensures that when the device is in operation state, the raw coal will not blow out of the sampling bag uncontrollably, which greatly improves the working environment of sampling.

Description

technical field [0001] The invention relates to a raw coal push-pull coal hopper sampling device and a coal storage system. Background technique [0002] In the thermal test process of power plant boilers, raw coal sampling is an important link. Accurate sampling of coal can provide real coal quality data for the subsequent calculation of various performance indicators. When conducting boiler performance tests, the national standard GB10184-2015 requires fuel sampling: "Sampling should be taken from the flowing solid material flow. If there is more than one feeding port, samples should be taken at equal intervals at each feeding port." The current raw coal sampling locations mainly include coal feeding belt and coal feeder. The best position to take coal is at the coal feeder hopper, such as figure 1 As shown, the current coal measuring points are very simple, often open directly at the coal hopper, weld the coal outlet pipe, and then use a flange or a ball valve as a swit...

Claims

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Application Information

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IPC IPC(8): G01N1/04G01N1/10
CPCG01N1/04G01N1/10G01N2001/1006
Inventor 刘科侯凡军郭新根姜波王海超段传俊
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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