CN201463986U - Improved ultrasonic material level measuring device - Google Patents
Improved ultrasonic material level measuring device Download PDFInfo
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- CN201463986U CN201463986U CN2009201029406U CN200920102940U CN201463986U CN 201463986 U CN201463986 U CN 201463986U CN 2009201029406 U CN2009201029406 U CN 2009201029406U CN 200920102940 U CN200920102940 U CN 200920102940U CN 201463986 U CN201463986 U CN 201463986U
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- material level
- measuring device
- guide rod
- ultrasonic
- wave guide
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Abstract
The utility model discloses an improved ultrasonic material level measuring device, belongs to the technical field of measuring instruments, and solves the technical problem to provide an ultrasonic material level measuring device with simple installation, low manufacturing cost and convenient maintenance. The technical scheme is that: the improved ultrasonic material level measuring device consists of an ultrasonic material level sensor and a metal wave guide rod; one end of the wave guide rod is connected with a transmitting terminal of the ultrasonic material level sensor, while the other end extends to the bottom of a material bin; and the wave guide rod is a thin steel cable. The arranged wave guide rod can provide a high-efficiency and quick channel for transmitting and receiving signals, so that transmitting and receiving strength of ultrasonic waves is improved on a powdery dynamic material surface in high temperature dust environment in a return ore bunker, the signal emission rate is the highest, the return rate is the maximum and can reach 20 percent through detection, and the phenomena of false material level and dead material level are radically eliminated. The structure solves the problems which are not solved for a long term in actual production in the simplest mode, has high practical value and is worth promoting and applying.
Description
Technical field
The utility model relates to a kind of sintering, the shaft furnace storehouse apparatus for measuring charge level of returning mine, and belongs to the surveying instrument technical field.
Background technology
In metallurgy industry, sintering, the shaft furnace storehouse level gauging of returning mine is the technology of using always, mainly contains non-contact detection and contact and detects.The non-contact detection of material level mainly contains two kinds of elements, ultrasound wave level sensor and radar type material level sensor.And the radio frequency admittance level sensor that contact detects can only provide the switching value signal because of it, can not satisfy the analog quantity requirement of automatic control system.
In the non-contact detection of material level, radar type material level sensor emission frequency is higher, wavelength is little, penetrability is not strong, be applicable to that the space medium impurity density is big, long range measurements, whether liquid level does not steadily have too is strict with, but the short distance measurement can make the radar type material level working sensor in the blind area, does not therefore also have very successful application example at present for boiling shape charge level in the similar storehouse of returning mine.
Ultrasound wave level sensor transmission frequency is lower, wavelength is big, penetrability is strong, is applicable to that the space medium impurity density is big, liquid level steady, short distance is measured, for the measurement of short distance boiling shape liquid level, the ultrasound wave level sensor has successful Application at present, for the lifting means of echo rate, it adopts and installs the remittance wave duct additional at the sensor emission end, makes the intraluminal fluid face relatively stable, reduce the scattering of ripple, improve the recovery of ripple.But, the ultrasound wave level sensor detects poor effect for granular material, and this is because the wave reflection rate is very low, echo rate less than 2%, occur false material level or dead material level when material level is shown, therefore do not have very successful application example at present for boiling shape charge level in the similar storehouse of returning mine.
The producer that has thinks that strengthening hyperacoustic emissive power can address this problem, and also have similar products like to come out, but effect is unsatisfactory, and main performance is that power strengthens, and waveform just can distortion, does not still thoroughly deal with problems.
Though problems in use appear in the ultrasound wave level sensor, but one flaw cannot mar the jade, the advantage that penetrability is strong, transmission frequency is lower, non-contact detection is still him, if can solve the not high defective of the recovery of ripple, still have very wide prospect, this is the new task that the technician faces.
Summary of the invention
Technical problem to be solved in the utility model is that to overcome the present ultrasound wave level sensor shape charge level wave reflection rate of seething with excitement in the storehouse of returning mine low, the phenomenon that false material level, dead material level occur provides a kind of install simple, cost ultrasound wave apparatus for measuring charge level low, easy to maintenance.
The technical scheme that solves the problems of the technologies described above is:
A kind of improved ultrasound wave apparatus for measuring charge level, it comprises the ultrasound wave level sensor, and its improvements are, and it also has a metal guided wave bar, and an end of guided wave bar is connected with the transmitting terminal of ultrasound wave level sensor, and the other end extends at the bottom of the storehouse of feed bin.
Above-mentioned improved ultrasound wave apparatus for measuring charge level, described guided wave bar is a thin steel rope.
The utility model has been installed the guided wave bar at the transmitting terminal of ultrasound wave level sensor, the guided wave bar extends at the bottom of the storehouse always, can provide an efficiently passage efficiently for transmitting and receiving of signal, thereby improve ultrasound wave in the storehouse of returning mine in the high-temperature dust environment, emission on the dynamic charge level of powdery and recovery intensity, make the emissivity of signal the highest, the return rate maximum, can reach 20% according to detecting, thoroughly eliminated the phenomenon of false material level and dead material level. this structure with the simplest mode solved produce do not had since the actual midium or long term can fine solution a difficult problem, have very high practical value, be worthy of popularization.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Mark is as follows among the figure: feed bin 1, vibration hopper 2, ultrasound wave level sensor 3, guided wave bar 4, material 5
Embodiment
Show among the figure that the utility model is made up of ultrasound wave level sensor 3 and guided wave bar 4.Ultrasound wave level sensor 3 is in the outside of feed bin 1, and guided wave bar 4 is made of thin steel rope, and an end of thin steel rope is connected with the transmitting terminal of ultrasound wave level sensor 3, and the other end extends vertically up at the bottom of the storehouse of feed bin 1.
The course of work of the present utility model is as follows:
1, based on listening the clave principle thin steel rope to be installed at the transmitting terminal of ultrasound wave level sensor 3, extend vertically up at the bottom of the storehouse always, space environment with respect to high temperature dust in the storehouse, the metal wirerope has very strong guided wave performance, reduce the scattering in dust in the ultrasonic signal emission process greatly, ultrasonic signal is launched along wirerope, improved the signal emissive porwer.
2, ultrasonic signal runs in the dynamic charge level return course of powdery, thin steel rope can well be avoided random scatters and the refraction of ultrasonic signal on the dynamic charge level of powdery, the ultrasonic signal of the overwhelming majority is returned along wirerope, like this thin steel rope just for the emission of signal and return provide efficiently, passage efficiently.Thereby improve ultrasound wave emission on the dynamic charge level of powdery and reclaim intensity under the high-temperature dust environment in the storehouse of returning mine, realize accurately measuring and controlling of material level.
3, must guarantee being rigidly connected of thin steel rope and ultrasonic sensor transmitting terminal, thin steel rope extends to the bottom, storehouse of returning mine.
Claims (2)
1. improved ultrasound wave apparatus for measuring charge level, it comprises ultrasound wave level sensor [3], it is characterized in that: it also has a metal guided wave bar [4], and an end of guided wave bar [4] is connected with the transmitting terminal of ultrasound wave level sensor [3], and the other end extends at the bottom of the storehouse of feed bin [1].
2. improved ultrasound wave apparatus for measuring charge level according to claim 1 is characterized in that: described guided wave bar [4] is a thin steel rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201029406U CN201463986U (en) | 2009-05-26 | 2009-05-26 | Improved ultrasonic material level measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201029406U CN201463986U (en) | 2009-05-26 | 2009-05-26 | Improved ultrasonic material level measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201463986U true CN201463986U (en) | 2010-05-12 |
Family
ID=42391337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201029406U Expired - Fee Related CN201463986U (en) | 2009-05-26 | 2009-05-26 | Improved ultrasonic material level measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201463986U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246901A (en) * | 2017-07-10 | 2017-10-13 | 太原师范学院 | Coal bunker material-level detection system and method based on Chord vibration |
| WO2019128889A1 (en) * | 2017-12-25 | 2019-07-04 | 上海昂丰装备科技有限公司 | Level detection system for incineration hopper, and method for using same |
-
2009
- 2009-05-26 CN CN2009201029406U patent/CN201463986U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246901A (en) * | 2017-07-10 | 2017-10-13 | 太原师范学院 | Coal bunker material-level detection system and method based on Chord vibration |
| WO2019128889A1 (en) * | 2017-12-25 | 2019-07-04 | 上海昂丰装备科技有限公司 | Level detection system for incineration hopper, and method for using same |
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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: 20100512 Termination date: 20140526 |