CN202471644U - Intrinsically safe coal sample moisture content tester for mining - Google Patents
Intrinsically safe coal sample moisture content tester for mining Download PDFInfo
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- CN202471644U CN202471644U CN 201220048377 CN201220048377U CN202471644U CN 202471644 U CN202471644 U CN 202471644U CN 201220048377 CN201220048377 CN 201220048377 CN 201220048377 U CN201220048377 U CN 201220048377U CN 202471644 U CN202471644 U CN 202471644U
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- 239000003245 coal Substances 0.000 title claims abstract description 29
- 238000005065 mining Methods 0.000 title abstract 4
- 238000001914 filtration Methods 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000010355 oscillation Effects 0.000 abstract 3
- 239000000523 sample Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000011545 laboratory measurement Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
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Abstract
The utility model discloses an intrinsically safe coal sample moisture content tester for mining, relating to a moisture content tester. The intrinsically safe coal sample moisture content tester for mining comprises a radio-frequency oscillation circuit, the first output end of the radio-frequency oscillation circuit is connected with the first input end of a transformer, the first output end of the transformer is connected with the input end of a radio-frequency capacitive sensor, the output end of the radio-frequency capacitive sensor is connected with the second input end of the transformer, the second output end of the transformer is connected with the input end of the radio-frequency oscillation circuit, the third output end of the transformer is connected with the input end of a high-frequency detection circuit, the output end of the high-frequency detection circuit is connected with the input end of a signal acquisition circuit, and the output end of the signal acquisition circuit is connected with the first input end of a processor. The rapid and accurate determination on the moisture content of coal can be realized, and the intrinsically safe coal sample moisture content tester for mining can be used and carried conveniently.
Description
Technical field
The utility model relates to a kind of moisture teller, particularly relates to a kind of mine intrinsic safety moulded coal appearance moisture teller.
Background technology
In coal industry; The moisture of coal is an important parameters; It is widely used in processing, production, transportation, trade and the storage of coal, and the water cut of coal is directly related with the thermal value of coal, and thermal value is to weigh the key index of coal combustion efficient; The moisture measurement that carries out coal in addition is the transaction of carrying out colliery and thermal power plant, and the operation power plant of high efficiency is necessary.Because conventional measurement is to adopt laboratory measurement; And often slower based on breadboard detection method, this is not easy to carry out between colliery and power plant trade settlement fast, and has caused many disputes; And in coal seam water infusion; For flood effectiveness is judged, need the content of moisture be detected, existing product is difficult to the content of moisture is detected.
Therefore those skilled in the art are devoted to develop a kind of convenient and swift, mine intrinsic safety moulded coal appearance moisture teller that is used to detect coal sample moisture that measuring accuracy is high.
The utility model content
Because the above-mentioned defective of prior art, the utility model technical matters to be solved provides a kind of so those skilled in the art and is devoted to develop a kind of convenient and swift, mine intrinsic safety moulded coal appearance moisture teller that is used to detect coal sample moisture that measuring accuracy is high.
For realizing above-mentioned purpose, the utility model provides a kind of mine intrinsic safety moulded coal appearance moisture teller, comprises the strength circuit; First output terminal of said strength circuit connects the first input end of mutual inductor; First output terminal of said mutual inductor connects the input end of radio frequency capacitance type sensor; The output terminal of said radio frequency capacitance type sensor connects second input end of said mutual inductor; Second output terminal of said mutual inductor connects the input end of said strength circuit; The 3rd output terminal of said mutual inductor connects the input end of high frequency detecting circuit; The output terminal of said high frequency detecting circuit connects the input end of signal acquisition circuit; The first input end of the output terminal connection processing device of said signal acquisition circuit.
Preferable, said signal acquisition circuit is made up of filtering circuit and A/D change-over circuit; The output terminal of said high frequency detecting circuit connects the input end of said filtering circuit; The output terminal of said filtering circuit connects the input end of said A/D change-over circuit; The output terminal of said A/D change-over circuit connects the first input end of said processor.
Preferable, first output terminal of said processor connects the input end of line under-voltage testing circuit; Whether said line under-voltage testing circuit is used to detect power-supply battery under-voltage.
Preferable, second output terminal of said processor connects the input end of LCD MODULE.
Preferable, second input end of said processor connects the output terminal of keyboard load module.
The beneficial effect of the utility model is: the utility model can be realized measuring fast accurately of moisture content of coal, and the utility model is easy to use, be easy to carry.
Description of drawings
Fig. 1 is the circuit theory synoptic diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
As shown in Figure 1, a kind of mine intrinsic safety moulded coal appearance moisture teller comprises strength circuit 1; First output terminal of said strength circuit 1 connects the first input end of mutual inductor 2; First output terminal of said mutual inductor 2 connects the input end of radio frequency capacitance type sensor 3; The output terminal of said radio frequency capacitance type sensor 3 connects second input end of said mutual inductor 2; Second output terminal of said mutual inductor 2 connects the input end of said strength circuit 1; The 3rd output terminal of said mutual inductor 2 connects the input end of high frequency detecting circuit 4; The output terminal of said high frequency detecting circuit 4 connects the input end of signal acquisition circuit 5; The first input end of the output terminal connection processing device 6 of said signal acquisition circuit 5.
Said signal acquisition circuit 5 is made up of filtering circuit 7 and A/D change-over circuit 8; The output terminal of said high frequency detecting circuit 4 connects the input end of said filtering circuit 7; The output terminal of said filtering circuit 7 connects the input end of said A/D change-over circuit 8; The output terminal of said A/D change-over circuit 8 connects the first input end of said processor 6.
First output terminal of said processor 6 connects the input end of line under-voltage testing circuit 9; Whether said line under-voltage testing circuit 9 is used to detect power-supply battery under-voltage; Said power-supply battery is supplied power to this moisture teller; Second output terminal of said processor 6 connects the input end of LCD MODULE 10, and second input end of said processor 6 connects the output terminal of keyboard load module 11.
Said processor 6 adopts the PIC16F873A chip, and said LCD MODULE 10 adopts SMS0408E2 standard segmentation Liquid Crystal Module.
The principle of work of the utility model is: radio frequency capacitance type sensor 3 is inserted in the tested coal sample; Strength circuit 1 produces radiofrequency signal, is transferred to the probe of radio frequency capacitance type sensor 3 through mutual inductor 2, along with the variation of moisture in the coal sample; The corresponding variation takes place in the inductance in radio frequency capacitance type sensor 3 circuit, electric capacity; Thereby the amplitude that causes high frequency detecting circuit 4 output signals changes, and high frequency detecting circuit 4 outputs signal to processor 6 through signal acquisition circuit 5, and the signal of 5 pairs of high frequency detecting circuits of signal acquisition circuit, 4 outputs carries out filtering and converts the digital signal that processor 6 can be discerned to; Processor 6 is handled to the received signal, is demarcated; Processor 6 sends signal and gives liquid crystal display module 10, and the utility model also has the line under-voltage measuring ability, and line under-voltage testing circuit 9 judges whether supply voltage is under-voltage; Line under-voltage testing circuit 9 sends signals to processor 6 under-voltage the time when power-supply battery has; Processor 6 sends data to LCD MODULE 10 after receiving signal, and the utility model also is connected to keyboard load module 11, can send signal to processor 6 through keyboard load module 11.
More than describe the preferred embodiment of the utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variation according to the design of the utility model.Therefore, all technician in the art according to the design of the utility model on the basis of existing technology through the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in determined protection domain by claims.
Claims (5)
1. a mine intrinsic safety moulded coal appearance moisture teller is characterized in that: comprise strength circuit (1); First output terminal of said strength circuit (1) connects the first input end of mutual inductor (2); First output terminal of said mutual inductor (2) connects the input end of radio frequency capacitance type sensor (3); The output terminal of said radio frequency capacitance type sensor (3) connects second input end of said mutual inductor (2); Second output terminal of said mutual inductor (2) connects the input end of said strength circuit (1); The 3rd output terminal of said mutual inductor (2) connects the input end of high frequency detecting circuit (4); The output terminal of said high frequency detecting circuit (4) connects the input end of signal acquisition circuit (5); The first input end of the output terminal connection processing device (6) of said signal acquisition circuit (5).
2. mine intrinsic safety moulded coal appearance moisture teller as claimed in claim 1 is characterized in that: said signal acquisition circuit (5) is made up of filtering circuit (7) and A/D change-over circuit (8); The output terminal of said high frequency detecting circuit (4) connects the input end of said filtering circuit (7); The output terminal of said filtering circuit (7) connects the input end of said A/D change-over circuit (8); The output terminal of said A/D change-over circuit (8) connects the first input end of said processor (6).
3. according to claim 1 or claim 2 mine intrinsic safety moulded coal appearance moisture teller, it is characterized in that: first output terminal of said processor (6) connects the input end of line under-voltage testing circuit (9); Whether said line under-voltage testing circuit (9) is used to detect power-supply battery under-voltage.
4. mine intrinsic safety moulded coal appearance moisture teller as claimed in claim 3 is characterized in that: second output terminal of said processor (6) connects the input end of LCD MODULE (10).
5. mine intrinsic safety moulded coal appearance moisture teller as claimed in claim 4 is characterized in that: second input end of said processor (6) connects the output terminal of keyboard load module (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220048377 CN202471644U (en) | 2012-02-15 | 2012-02-15 | Intrinsically safe coal sample moisture content tester for mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220048377 CN202471644U (en) | 2012-02-15 | 2012-02-15 | Intrinsically safe coal sample moisture content tester for mining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202471644U true CN202471644U (en) | 2012-10-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220048377 Expired - Lifetime CN202471644U (en) | 2012-02-15 | 2012-02-15 | Intrinsically safe coal sample moisture content tester for mining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202471644U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307692A (en) * | 2018-04-28 | 2019-02-05 | 中国农业大学 | A kind of soil moisture monitoring system |
| CN109324095A (en) * | 2018-04-28 | 2019-02-12 | 中国农业大学 | A kind of soil moisture measurement sensor and soil moisture measurement system |
-
2012
- 2012-02-15 CN CN 201220048377 patent/CN202471644U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307692A (en) * | 2018-04-28 | 2019-02-05 | 中国农业大学 | A kind of soil moisture monitoring system |
| CN109324095A (en) * | 2018-04-28 | 2019-02-12 | 中国农业大学 | A kind of soil moisture measurement sensor and soil moisture measurement system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA COAL TECHNOLOGY ENGINEERING GROUP CHONGQING Free format text: FORMER NAME: CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RESEARCH INSTITUTE |
|
| CP03 | Change of name, title or address |
Address after: 400039 Chongqing Jiulongpo Branch City Road No. 6 Patentee after: CCTEG CHONGQING RESEARCH INSTITUTE Co.,Ltd. Address before: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee before: Chongqing Research Institute of China Coal Technology & Engineering Group Corp. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |
|
| CX01 | Expiry of patent term |