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Real-time wood dust monitoring device and method based on minimum ignition energy prediction

A technology of real-time monitoring and ignition energy, applied in the field of wood science, can solve the problems of non-existence and difficulty in real-time measurement, and achieve the effects of high accuracy, saving explosion-proof costs, and reducing the probability of false alarms

Pending Publication Date: 2019-06-07
NANJING FORESTRY UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Either way, it is difficult to measure in real time
Therefore, currently, there is no real-time monitoring device for wood dust based on minimum ignition energy prediction.

Method used

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  • Real-time wood dust monitoring device and method based on minimum ignition energy prediction
  • Real-time wood dust monitoring device and method based on minimum ignition energy prediction
  • Real-time wood dust monitoring device and method based on minimum ignition energy prediction

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Embodiment Construction

[0057] In order to make the technical solution of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings. Any solution obtained by equivalent replacement and conventional reasoning of the technical features of the technical solution of the present invention falls within the protection scope of the present invention. The fixed connection, fixed arrangement, and fixed structure mentioned in this embodiment are known technologies known to those skilled in the art, such as gluing, welding, screw connection, bolt and nut connection, and riveting.

[0058] In this embodiment, a high-definition industrial-grade CCD camera is used together with a microscope objective lens, and a 20 million-pixel CCD camera can identify dust particles of 10um-500um. The microscopic objective lens is fixedly installed in front of the CCD camera lens. This technology is a known technology and can be directly purchased in the marke...

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Abstract

The invention relates to a real-time wood dust monitoring device and method based on minimum ignition energy prediction. The real-time wood dust monitoring device comprises a dust particle size and concentration collecting device, a temperature collecting device, a host computer and an early warning device. With the detecting device and method, the minimum ignition energy of dust can be obtained according to the concentration, temperature and particle size conditions measured in real time; the dust removing pipeline of the wood processing enterprise can be monitored in real time; the accuracyis high and the false alarm probability is low; the frequency alarming is avoided; and the production efficiency is improved. Besides, a spark detection device can be configured additionally, so thatthe dust removing pipeline can be monitored and warned early effectively, the false alarming probability is reduced, and the explosion-proof cost of the enterprise is saved.

Description

technical field [0001] The invention relates to the field of wood science, in particular to a wood dust real-time monitoring method and device based on minimum ignition energy prediction. Background technique [0002] The dust explosion limit includes the lower explosion limit and the upper explosion limit. The lower limit of dust explosion refers to the lowest concentration of dust in the air that can explode when encountering a fire source. It is generally expressed by the mass of dust contained in a unit volume, and its unit is g / m3. The lower the lower explosion limit, the greater the risk of dust explosion. The lower explosion limit of different types of dust is different, and the lower explosion limit of dust of the same substance also changes with the change of conditions. [0003] Wood dust is generally produced in wood processing sites. A large amount of wood dust is generated in production processes such as sawing, milling, planing, painting, and grinding. Und...

Claims

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Application Information

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IPC IPC(8): G01N33/00
Inventor 喻孜胡涛平徐长妍郭露逄智宏李万兆朱南峰陈心怡
Owner NANJING FORESTRY UNIV
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