CN201060147Y - Digital primary coal moisture measurement device - Google Patents
Digital primary coal moisture measurement device Download PDFInfo
- Publication number
- CN201060147Y CN201060147Y CNU2007200133403U CN200720013340U CN201060147Y CN 201060147 Y CN201060147 Y CN 201060147Y CN U2007200133403 U CNU2007200133403 U CN U2007200133403U CN 200720013340 U CN200720013340 U CN 200720013340U CN 201060147 Y CN201060147 Y CN 201060147Y
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- China
- Prior art keywords
- microwave oven
- micro
- electronic scale
- wave oven
- raw coal
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Abstract
The utility model relates to a digital raw coal humidity measuring device. The utility model is formed by serially connecting a microwave heating and weighing integrated device, a display controller, and a computer with a sensor cable, a RS232 communication cable, and an ISA interface cable. The microwave heating and weighing integrated device consists of a microwave oven, a transmission rod, an electronic scale, and an airproof box. The microwave oven and the electronic scale are combined together through the transmission rod, a stirrer is arranged in the microwave oven, and the electronic scale and the microwave oven are integrated by the airproof box. The airproof box is made of cold-rolled steel sheet with the thickness of 1.0 mm. The distance between the transmission rod and the pedestal of the microwave oven is required to be less than or equal to 1mm. The utility model adopts the microwave heating and weighing integrated device, uses the computer to collect the weight information of the electronic scale and control the start and the stop of the microwave oven, can implement heating and weighing synchronously, shortens the heating time greatly, saves a great deal of electricity, improves the measurement precision, and realizes the computer management and network connecting of the data.
Description
Technical field
The utility model relates to humidity (water cut) inspection machine of a kind of coal for coking and boiler fuel usefulness coal, particularly a kind of digital raw coal humidity measuring instrument.
Background technology
Humidity (water cut) check of the domestic chemical industry coal for coking of mother, power plant boiler fuel coal, the method that adopts is to get after 500 gram coal samples (coal dust) weigh its weight in wet base in the balance, put into steady temperature 105 ℃ Electric heat oven baking 2 hours, this moment, moisture was all lost, and weighed its dry weight again in the balance.So humidity can be calculated according to following formula:
This method has following shortcoming:
(1) coal sample that weighs with scale easily produce personal error, and efficient is low.
(2) data can't realize computer management and networking.
(3) dry coal sample with Electric heat oven, need 2 hours, in the meantime, the humidity of coals to be determined such as feed coal railway carriage influences the railway carriage turnover, when serious, causes railway carriage to overstock.
(4) for keep 105 ℃ constant, no matter not coal sample is arranged, the baking oven of high power consumption is operation continuously, the waste electric energy.
Summary of the invention
The utility model has overcome the defective of above-mentioned existence, and purpose is for humidity (water cut) check of coal for coking and boiler fuel usefulness coal, and a kind of digital raw coal humidity measuring instrument is provided.
The utility model numeral raw coal humidity measuring instrument content Description:
The utility model numeral raw coal humidity measuring instrument is characterized in that: digital raw coal humidity measuring instrument is to be connected in series by sensor cable, RS232 communication cable and ISA interface cable by microwave heating and weighing integrated apparatus, demonstration controller and computing machine three parts to constitute.
Microwave heating and weighing integrated apparatus are made of micro-wave oven, transmission pole, electronic scale and seal box, by transmission pole micro-wave oven and electronic scale are connected, and stirrer is set in micro-wave oven, with seal box electronic scales and micro-wave oven are connected as a single entity.
Seal box employing thickness is that 1.0 millimeters cold-rolled steel sheet is made.
The spacing of transmission pole and micro-wave oven base is necessary≤1mm.
The utility model numeral raw coal humidity measuring instrument, adopt microwave heating and weighing integrated apparatus, collect the start-stop of electronic scale weight information and controlled microwave stove with computing machine, realized that heating and weighing carry out synchronously, shortened heat time heating time greatly, save a large amount of electric energy, improved accuracy of detection, realized management of data computing machine and networking.
Description of drawings
Fig. 1 is digital raw coal humidity measuring instrument structural representation
Fig. 2 is microwave heating and weighing integrated apparatus structural representation
Among the figure: the 1st, microwave heating and weighing integrated apparatus, the 2nd show controller, the 3rd, computing machine, the 4th, ISA interface cable, the 5th, sensor cable, the 6th, RS232 communication cable, 7 micro-wave ovens, the 8th, stirrer, the 9th, charging tray, the 10th, transmission pole, the 11st, seal box, the 12nd, electronic scale, the 13rd, sensor, the 14th, coal sample.
Embodiment
The utility model numeral raw coal humidity measuring instrument be achieved in that digital raw coal humidity measuring instrument by microwave heating and weighing integrated apparatus 1, show that controller 2, computing machine 3 three parts form, do specifying below in conjunction with accompanying drawing.
See Fig. 1, microwave heating and weighing integrated apparatus 1, show that controller 2 and computing machine 3 three parts are by sensor cable 5, RS232 communication cable 6 and ISA interface cable 4 formation of being connected in series.
See Fig. 2, microwave heating and weighing integrated apparatus are made of micro-wave oven 7, transmission pole 10, electronic scale 12 and seal box 11, by transmission pole 10 micro-wave oven 7 and electronic scale 12 are connected, stirrer 8 is set in micro-wave oven 7, electronic scales 12 and micro-wave oven 7 is connected as a single entity with seal box 11.
Make that by stirrer 8 microwave is more evenly distributed in micro-wave oven 7 cavitys, form real three-dimensional microwave.Also guaranteed the possibility that is connected to become between micro-wave oven 7 and the electronic scale 12.
Show that controller 2 is a kind of intelligent display controllers, the 2mV/V analog input of its receiving sensor converts 6 high definition liquid crystal digitals of Kg (or g) to and shows, can show gross weight and net weight.Because adopted TraxDSP digital filtering patented technology, strengthened the stability of reading.4 are touched membrane keyboard and can finish functions such as zero clearing, peeling, printing.
Having the automatic zero-bit following function (AZM) and the automatic zero-bit that powers on pounces on and catches function (AZC).
Provide RS232 serial data output interface, the optional command or the continuous way of output.
The utility model numeral raw coal humidity measuring instrument can detect the variation of coal sample weight in the heating, drying process in real time; The weight of coal sample is given the demonstration controller by sensor, through filtering, scale transformation, data processing, convert to Kg (or g) is 6 decimal numbers of unit, this data on the one hand show controller with liquid crystal display on show, give PC by the RS232 communication cable on the other hand, the speed of this Data Update is 6 times/second.
PC can show the weight of coal sample and trend curve is provided that the sampling period is 1 second in real time.
1 PC is controlled two cover microwave heating and weighing integrated apparatus simultaneously.
Can choose the microwave firepower according to the kind of sample coal, have 100%, 70%, 50%, 30%, 10% 5 grade.
Automatically stop microwave heating
This function is very important to shortening proving time.System arrangement determining program, if in 1 minute, the weight change of coal sample assert then that less than ± 1 gram coal sample moisture removes fully, at this moment, stops to heat and calculating humidity (water cut).
Automatically stopping microwave heating having dual mode, shuts down or shuts down by the drying time of setting according to the degree of drying of sample coal.
Claims (4)
1. digital raw coal humidity measuring instrument is characterized in that: digital raw coal humidity measuring instrument is by microwave heating and weighing integrated apparatus (1), shows that controller (2) and computing machine (3) three parts are by sensor cable (5), RS232 communication cable (6) and ISA interface cable (4) formation of being connected in series.
2. digital raw coal humidity measuring instrument according to claim 1, it is characterized in that: described microwave heating and weighing integrated apparatus, constitute by micro-wave oven (7), transmission pole (10), electronic scale (12) and seal box (11), by transmission pole (10) micro-wave oven (7) and electronic scale (12) are connected, stirrer (8) is set in micro-wave oven (7), electronic scales (12) and micro-wave oven (7) is connected as a single entity with seal box (11).
3. digital raw coal humidity measuring instrument according to claim 2 is characterized in that: described seal box (11) employing thickness is that 1.0 millimeters cold-rolled steel sheet is made.
4. digital raw coal humidity measuring instrument according to claim 2 is characterized in that: the spacing of described transmission pole (11) and micro-wave oven (7) base is necessary≤and 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200133403U CN201060147Y (en) | 2007-07-17 | 2007-07-17 | Digital primary coal moisture measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200133403U CN201060147Y (en) | 2007-07-17 | 2007-07-17 | Digital primary coal moisture measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060147Y true CN201060147Y (en) | 2008-05-14 |
Family
ID=39408626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200133403U Expired - Fee Related CN201060147Y (en) | 2007-07-17 | 2007-07-17 | Digital primary coal moisture measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201060147Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505224A (en) * | 2017-08-11 | 2017-12-22 | 中国农业大学 | Radio frequency hot air combined drying equipment online weighing control system |
-
2007
- 2007-07-17 CN CNU2007200133403U patent/CN201060147Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505224A (en) * | 2017-08-11 | 2017-12-22 | 中国农业大学 | Radio frequency hot air combined drying equipment online weighing control system |
| CN107505224B (en) * | 2017-08-11 | 2020-02-18 | 中国农业大学 | On-line weighing control system of radio frequency-hot air combined drying equipment |
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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: 20080514 Termination date: 20110717 |