CN203132963U - Dust concentration sensor for detecting coal mine dust - Google Patents
Dust concentration sensor for detecting coal mine dust Download PDFInfo
- Publication number
- CN203132963U CN203132963U CN 201320129851 CN201320129851U CN203132963U CN 203132963 U CN203132963 U CN 203132963U CN 201320129851 CN201320129851 CN 201320129851 CN 201320129851 U CN201320129851 U CN 201320129851U CN 203132963 U CN203132963 U CN 203132963U
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- Prior art keywords
- dust
- darkroom
- dust concentration
- light source
- dark chamber
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Abstract
The utility model discloses a dust concentration sensor for detecting coal mine dust, which relates to the technical field of electronic information. The dust concentration sensor comprises a shell, wherein a dark chamber is arranged inside the shell; a partition plate is arranged inside the dark chamber; a cover is arranged at the upper end of the dark chamber; a photoelectric multiplier tube is arranged on the upper part of the cover; a sealing cover is arranged outside the photoelectric multiplier tube; a fan is connected to one side of the lower part of the dark chamber; a light source frame is arranged on the side wall of the dark chamber and above the fan; a light source is arranged on the light source frame; the upper part of the other side wall of the dark chamber is connected with an air inlet; and an air feeding cover is arranged on the air inlet and is connected with a separator. The dust concentration sensor can adapt to a severe environment in a coal mine, is simple in structure, reasonable in design and extremely high in sensitivity and runs stably.
Description
Technical field
The utility model relates to electronic information technical field, is specifically related to a kind of Mine Dust detection sensor of dust concentration.
Background technology
Coal is the main energy sources of China, occupies an important position in the national economy energy structure, accounts for more than 76% in China's primary energy consumption.Along with fast development of national economy, the demand of coal is increasing, and in recent years, raw coal output increased rapidly, and only national raw coal output in 2007 has just surpassed 2,000,000,000 tons.Along with production-scale expansion, the pollution caused by coal dust situation is also more and more serious.
Coal dust belongs to dust, result from coal exploitation, store up, link such as transportation and processing and utilization, one of primary pollution source of the fabrication process place gas phase factor.With regard to the industry of colliery, in coal production process, nearly all operation all can produce dust.Along with the increasing of coal production mechanization degree and improving constantly of coal mining intensity, the coal dust generation of each job steps such as rock drilling, explosion, loading and unloading, fragmentation, transportation is rolling up.Under the situation of no dust prevention, the dust concentration of blast mining face can reach 300-500mg/m
3, the dust concentration of machine mining face can reach 1000-3000mg/m
3, the dust concentration of fully-mechanized mining working can reach 4000-8000mg/m
3The environment in severe contamination operation place, the harm worker is healthy, the influence safety in production.
In China, pneumoconiosis is one of main occupational illness.Along with the quickening of the paces of reforming and opening up to the outside world in recent years, economic fast development, society is to the increase of the energy and industrial and mining products demand, and the influence that the dust disaster produces progressively enlarges.And coal dust has explosivity, is suspended in aerial and reaches finite concentration, if at this moment there is the thermal source of the coal dust that can ignite that coal dust explosion will take place.The coal dust explosion meeting takes place such as the same serious accident of the especially big gas explosion in colliery.For the colliery, the consequence of coal dust explosion is more serious than gas explosion, and the former will produce a large amount of choke damp carbon dioxide and toxic atmospheric CO, causes the miner to poison or death; The latter mainly produces water vapor and carbon dioxide.Therefore the monitoring for Mine Dust seems particularly important, has relatively high expectations for the sensor that detects usefulness especially.
The utility model content
It is a kind of simple in structure that technical problem to be solved in the utility model is to provide, and futuramic Mine Dust detects uses sensor of dust concentration.
Technical problem to be solved in the utility model realizes by the following technical solutions:
A kind of Mine Dust detects uses sensor of dust concentration, comprise a shell, be provided with a darkroom in the described shell, be provided with a dividing plate in the described darkroom, upper end, described darkroom is provided with lid, described top of closure is provided with photomultiplier, described photomultiplier outside is provided with gland bonnet, bottom, described darkroom one side is connected with blower fan, described blower fan top is positioned at the darkroom sidewall and is provided with light source shelf, and described light source shelf is provided with light source, and another side wall upper part of described darkroom is connected with air intake opening, described air intake opening is provided with Intake Cover, and described Intake Cover is connected with separation vessel.
Described air intake opening is connected to the darkroom by the air intake opening seat.
Described dividing plate is " ㄥ " shape structure.
Described blower fan is communicated with the darkroom.
The beneficial effects of the utility model are: the utility model can be adapted to the rugged surroundings in the colliery, and is simple in structure, reasonable in design, stable, has very high sensitivity.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, a kind of Mine Dust detects uses sensor of dust concentration, comprise a shell 1, be provided with a darkroom 2 in the shell 1, be provided with a dividing plate 3 in the darkroom 2,2 upper ends, darkroom are provided with lid 4, lid 4 tops are provided with photomultiplier 5, photomultiplier 5 outsides are provided with gland bonnet 6, and 2 bottoms, darkroom, one side is connected with blower fan 7, and blower fan 7 tops are positioned at the darkroom sidewall and are provided with light source shelf 8, light source shelf 8 is provided with light source 9, darkroom 2 another side wall upper part are connected with air intake opening 10, and air intake opening 10 is provided with Intake Cover 11, and Intake Cover 11 is connected with separation vessel 12, air intake opening 10 is connected to darkroom 2 by air intake opening seat 13, dividing plate 3 is " ㄥ " shape structure, is positioned at blower fan 7 one sides, and blower fan 7 is communicated with darkroom 2.
The sensing probe extraneous air enters under the attraction of blower fan and attracts mouth, enters the detecting device darkroom through dividing plate (covering extraneous light).Directional light in the darkroom meets at right angles to intersect with the visual field of light accepting part and constitutes the sensitive volume, when dust passes through the sensitive volume, its 90 ℃ of direction scattered lights inject photomultiplier through slit and convert photocurrent to, convert the electric signal that is directly proportional with scattered light to through the photocurrent integrating circuit.This electric signal is transformed to the frequency signal that frequency is 200-1000Hz by amplifying circuit and A/D change-over circuit again, draws the mass concentration of dust simultaneously after software calculates.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. a Mine Dust detects and uses sensor of dust concentration, comprise a shell, it is characterized in that: be provided with a darkroom in the described shell, be provided with a dividing plate in the described darkroom, upper end, described darkroom is provided with lid, described top of closure is provided with photomultiplier, described photomultiplier outside is provided with gland bonnet, bottom, described darkroom one side is connected with blower fan, described blower fan top is positioned at the darkroom sidewall and is provided with light source shelf, and described light source shelf is provided with light source, and another side wall upper part of described darkroom is connected with air intake opening, described air intake opening is provided with Intake Cover, and described Intake Cover is connected with separation vessel.
2. Mine Dust according to claim 1 detects and uses sensor of dust concentration, and it is characterized in that: described air intake opening is connected to the darkroom by the air intake opening seat.
3. Mine Dust according to claim 1 detects and uses sensor of dust concentration, and it is characterized in that: described dividing plate is " ㄥ " shape structure.
4. Mine Dust according to claim 1 detects and uses sensor of dust concentration, and it is characterized in that: described blower fan is communicated with the darkroom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320129851 CN203132963U (en) | 2013-03-21 | 2013-03-21 | Dust concentration sensor for detecting coal mine dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320129851 CN203132963U (en) | 2013-03-21 | 2013-03-21 | Dust concentration sensor for detecting coal mine dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203132963U true CN203132963U (en) | 2013-08-14 |
Family
ID=48940935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320129851 Expired - Fee Related CN203132963U (en) | 2013-03-21 | 2013-03-21 | Dust concentration sensor for detecting coal mine dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203132963U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155222A (en) * | 2014-08-29 | 2014-11-19 | 中煤科工集团重庆研究院有限公司 | Easily maintain optical dust concentration detection device |
| CN106783501A (en) * | 2016-12-21 | 2017-05-31 | 中国科学院高能物理研究所 | A kind of large scale photomultiplier waterproof encapsulation structure and method for packing |
| CN109557004A (en) * | 2017-09-27 | 2019-04-02 | 田果成 | Detect cavity configuration, detection device, capture apparatus and terminal |
-
2013
- 2013-03-21 CN CN 201320129851 patent/CN203132963U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155222A (en) * | 2014-08-29 | 2014-11-19 | 中煤科工集团重庆研究院有限公司 | Easily maintain optical dust concentration detection device |
| CN104155222B (en) * | 2014-08-29 | 2016-08-24 | 中煤科工集团重庆研究院有限公司 | Easily maintain optical dust concentration detection device |
| CN106783501A (en) * | 2016-12-21 | 2017-05-31 | 中国科学院高能物理研究所 | A kind of large scale photomultiplier waterproof encapsulation structure and method for packing |
| CN106783501B (en) * | 2016-12-21 | 2018-07-03 | 中国科学院高能物理研究所 | A kind of large scale photomultiplier waterproof encapsulation structure and packaging method |
| CN109557004A (en) * | 2017-09-27 | 2019-04-02 | 田果成 | Detect cavity configuration, detection device, capture apparatus and terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20140321 |