CN202285003U - Near-infrared on-line measuring device for measuring moisture content of coal powder - Google Patents
Near-infrared on-line measuring device for measuring moisture content of coal powder Download PDFInfo
- Publication number
- CN202285003U CN202285003U CN 201120308336 CN201120308336U CN202285003U CN 202285003 U CN202285003 U CN 202285003U CN 201120308336 CN201120308336 CN 201120308336 CN 201120308336 U CN201120308336 U CN 201120308336U CN 202285003 U CN202285003 U CN 202285003U
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- light source
- package shell
- measuring
- mirror
- stationary installation
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Abstract
The utility model provides a near-infrared on-line measuring device for measuring the moisture content of coal powders, and mainly solves the problems that the existing device has poor heat dissipation and low measuring accuracy, and is slow to response and inconvenient to assemble and debug. The near-infrared on-line measuring device for measuring the moisture content of the coal powders includes a light source assembly and a measuring assembly, wherein the light source assembly includes a light source, a light source fixing device and a light source shade, and the measuring assembly includes a measuring assembly housing. The light source is arranged on one side of the light source fixing device in the light source shade; the light source shade and the measuring assembly housing are connected though the light source fixing device; and a heat insulating plate is arranged between the light source shade and the measuring assembly housing. The whole device generates less heat, requires no dedicated refrigerating device, and is simplified in structure.
Description
Technical field
The utility model relates to a kind of online coal dust moisture content detection device, is specifically related to a kind of application near infrared light splitting technology, the reflective devices of online detection coal dust moisture.
Background technology
At present, ubiquitous coal dust moisture on-line pick-up unit has two kinds, a kind of microwave device for measuring moisture of being made up of microwave generator and sniffer; Another kind is an infrared spectrometer.
The shortcoming of above-mentioned two kinds of devices is following:
Heat dispersion is poor, and light source assembly is set to integral piece with the measurement assembly, is unfavorable for heat radiation, needs to increase refrigeration plant to reach the heat radiation purpose; Measuring accuracy is not high, and measurement range is limited; Microwave device and spectrometer architecture are complicated, and manufacturing cost is high; Adopt the infrared spectrometer response speed of spectral scan technology slow, can not adapt to the needs that travelling belt coal dust fast moving process detects.Installation and Debugging are not easy.Two kinds of devices are installed complicacy in the background technology, debug loaded down with trivial details.
Summary of the invention
The utility model provides a kind of near infrared coal dust moisture on-line measurement mechanism, has mainly solved the problem that the existing apparatus heat dispersion is poor, measuring accuracy is low, response speed is slow and Installation and Debugging are inconvenient.
The technical solution of the utility model is:
This near infrared coal dust moisture on-line measurement mechanism; Comprise light source assembly and measure assembly; Light source assembly comprises light source, light source stationary installation and light source cover, measures assembly and comprises the measurement package shell, and light source is arranged at and is in a side in the light source cover on the light source stationary installation; Light source cover is connected through the light source stationary installation with the measurement package shell, is provided with thermal insulation board between light source cover and the measurement package shell.
Above-mentioned light source stationary installation is in the part of measuring in the package shell and is provided with beam condensing unit, measures in the package shell and is disposed with filtering apparatus, angle mirror, exit lens, reflective mirror and detector along light path.
Above-mentioned electro-optical device comprises at least two different color filters, filter disc, motor and electric machine supports, and color filter is arranged on the filter disc, and filter disc is through being arranged on the motor-driven rotation on the electric machine support, and electric machine support is fixedly connected with the measurement package shell; Angle mirror and exit lens are arranged on the angle mirror stationary installation, and the angle mirror stationary installation is fixedly connected with the measurement package shell; Reflective mirror is arranged on the mirror base, mirror base with measure package shell and be fixedly connected.
Angle between above-mentioned exit lens and the angle mirror is 45 °, and exit lens is parallel with reflective mirror; Said measurement package shell is provided with exit window, and exit window position and exit lens are suitable.
Above-mentioned beam condensing unit is two lens that laterally arrange.
Above-mentioned electric machine support is good with being fixedly connected to be threaded to of measurement package shell, and electric machine support does not contact with the measurement package shell; The angle mirror stationary installation is good with being fixedly connected to be threaded to of measurement package shell, and the angle mirror stationary installation does not contact with the measurement package shell; Mirror base with to measure being fixedly connected to be threaded to of package shell good, mirror base with do not contact with the measurement package shell.
The utility model has the advantages that:
The near infrared coal dust moisture on-line measurement mechanism that the utility model provides; Its light source heat radiation performance is good, adopts external near-infrared light source, and has the light source cover of heat sinking function more greatly with area of dissipation; The heat that infrared light supply is produced in time dissipates; The whole heating of device is less, need not special refrigerating plant, simplifies the structure.
The near infrared coal dust moisture on-line measurement mechanism that the utility model provides is simple in structure, and Installation and Debugging are convenient, adopts simplified structure, and structural member quantity is reduced.
The influence that the near infrared coal dust moisture on-line measurement mechanism that the utility model provides is not changed by measuring distance.The rising angle of outgoing hot spot is little, therefore changes insensitive to measuring distance.
Description of drawings
Fig. 1 is the utility model concrete structure synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is detailed, as shown in Figure 1:
This near infrared coal dust moisture on-line measurement mechanism; Comprise light source 11 assemblies 1 and measure assembly 2; Light source assembly 1 comprises light source 11, light source stationary installation 13 and light source cover 12, measures assembly 2 and comprises measurement package shell 21, and light source 11 is arranged at and is in sides in the light source cover 12 on the light source stationary installation 13; Light source cover 12 is connected through light source stationary installation 13 with measurement package shell 21, is provided with thermal insulation board 3 between light source cover 12 and the measurement package shell 21.Adopt reflection configuration, will transmit and receive and become one, place tested coal dust one side, infrared light supply 11 places to be measured in the outer light source cover 12 of package shell 21, with thermal insulation board 3 it is separated simultaneously, is convenient to dispel the heat.
Light source stationary installation 13 is in the part of measuring in the package shell 21 and is provided with beam condensing unit 14, and beam condensing unit 14 is good with two lens that laterally arrange, and forms the uniform light spots of being convenient to beam split; Measure in the package shell 21 and be disposed with filtering apparatus 22, angle mirror 23, exit lens 24, reflective mirror 25 and detector 26 along light path.
Filtering apparatus 22 comprises at least two different color filters 221, filter disc 222, motor 223 and electric machine support 224; Color filter 221 is arranged on the filter disc 222; Filter disc 222 is through being arranged on motor 223 driven in rotation on the electric machine support 224; Electric machine support 224 is fixedly connected with measuring package shell 21, and electric machine support 224 is good with being fixedly connected to be threaded to of measurement package shell 21, and electric machine support 224 does not contact with measurement package shell 21; The filter disc 222 that different color filters 221 are housed is by motor 223 driven rotary, makes the hot spot that produces different monochromatic wavelength in the different time section successively.
Above-mentioned three kinds of connected modes are all good to be threaded to, and its reason is for convenience detach, and device is safeguarded and changed; All do not contact, further improved light source assembly 1 and measured the heat-proof quality between the assembly 2 with measuring package shell 21.
Angle between exit lens 24 and the angle mirror 23 is 45 °, and exit lens 24 is parallel with reflective mirror 25; Measure package shell 21 and be provided with exit window 28, exit window 28 positions and exit lens 24 are suitable.45 mirror 23 makes hot spot produce 45 ° of reflections.Exit lens 24 penetrates light, forms one at tested object plane and evenly measures spot, and the exit window arranged outside has protective cover 27
After coal dust absorbed irradiates light, measurement mechanism was returned in partial reflection, was received by a big catoptron 25 and pooled a uniform small light spot, and detector 26 is arranged on this hot spot place, and the optical information that reflects is collected and carried out opto-electronic conversion.
Claims (6)
1. near infrared coal dust moisture on-line measurement mechanism; Comprise light source assembly and measure assembly; Light source assembly comprises light source, light source stationary installation and light source cover, measures assembly and comprises the measurement package shell, and light source is arranged at and is in a side in the light source cover on the light source stationary installation; It is characterized in that: said light source cover is connected through the light source stationary installation with the measurement package shell, is provided with thermal insulation board between light source cover and the measurement package shell.
2. near infrared coal dust moisture on-line measurement mechanism according to claim 1; It is characterized in that: said light source stationary installation is in the part of measuring in the package shell and is provided with beam condensing unit, is disposed with filtering apparatus, angle mirror, exit lens, reflective mirror and detector along light path in the said measurement package shell.
3. near infrared coal dust moisture on-line measurement mechanism according to claim 2; It is characterized in that: said filtering apparatus comprises at least two different color filters, filter disc, motor and electric machine supports; Color filter is arranged on the filter disc; Filter disc is through being arranged on the motor-driven rotation on the electric machine support, and electric machine support is fixedly connected with the measurement package shell; Said angle mirror and exit lens are arranged on the angle mirror stationary installation, and the angle mirror stationary installation is fixedly connected with the measurement package shell; Said reflective mirror is arranged on the mirror base, mirror base with measure package shell and be fixedly connected.
4. near infrared coal dust moisture on-line measurement mechanism according to claim 2, it is characterized in that: the angle between said exit lens and the angle mirror is 45 °, and exit lens is parallel with reflective mirror; Said measurement package shell is provided with exit window, and exit window position and exit lens are suitable.
5. near infrared coal dust moisture on-line measurement mechanism according to claim 2 is characterized in that: said beam condensing unit is two lens that laterally arrange.
6. according to the arbitrary described near infrared coal dust moisture on-line measurement mechanism of claim 3 to 5, it is characterized in that: said electric machine support is to be threaded with measuring being fixedly connected of package shell, and electric machine support does not contact with the measurement package shell; Said angle mirror stationary installation is to be threaded with measuring being fixedly connected of package shell, and the angle mirror stationary installation does not contact with the measurement package shell; Said mirror base be to be threaded with measuring being fixedly connected of package shell, mirror base with do not contact with the measurement package shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120308336 CN202285003U (en) | 2011-08-23 | 2011-08-23 | Near-infrared on-line measuring device for measuring moisture content of coal powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120308336 CN202285003U (en) | 2011-08-23 | 2011-08-23 | Near-infrared on-line measuring device for measuring moisture content of coal powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202285003U true CN202285003U (en) | 2012-06-27 |
Family
ID=46296522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120308336 Expired - Lifetime CN202285003U (en) | 2011-08-23 | 2011-08-23 | Near-infrared on-line measuring device for measuring moisture content of coal powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202285003U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390928A (en) * | 2014-10-24 | 2015-03-04 | 中华人民共和国黄埔出入境检验检疫局 | Near-infrared spectral recognition method for coal adulteration |
| CN112268863A (en) * | 2020-10-13 | 2021-01-26 | 上海市计量测试技术研究院 | Illumination box for calibrating Ringelmann blackness instrument and calibration method |
-
2011
- 2011-08-23 CN CN 201120308336 patent/CN202285003U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390928A (en) * | 2014-10-24 | 2015-03-04 | 中华人民共和国黄埔出入境检验检疫局 | Near-infrared spectral recognition method for coal adulteration |
| CN104390928B (en) * | 2014-10-24 | 2018-03-20 | 中华人民共和国黄埔出入境检验检疫局 | A kind of near infrared spectrum recognition methods for adulterating adulterated coal |
| CN112268863A (en) * | 2020-10-13 | 2021-01-26 | 上海市计量测试技术研究院 | Illumination box for calibrating Ringelmann blackness instrument and calibration method |
| CN112268863B (en) * | 2020-10-13 | 2023-06-20 | 上海市计量测试技术研究院 | Illumination box for calibrating ringeman blackness meter and calibration method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xi'an Mellon control engineering limited liability company Assignor: China Coal Sian Desigineering Co., Ltd. Contract record no.: 2014610000022 Denomination of utility model: Near-infrared on-line measuring device for measuring moisture content of coal powder Granted publication date: 20120627 License type: Exclusive License Record date: 20140320 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120627 |