CN2302519Y - Block metal material investigating apparatus for belt machine - Google Patents
Block metal material investigating apparatus for belt machine Download PDFInfo
- Publication number
- CN2302519Y CN2302519Y CN 97236509 CN97236509U CN2302519Y CN 2302519 Y CN2302519 Y CN 2302519Y CN 97236509 CN97236509 CN 97236509 CN 97236509 U CN97236509 U CN 97236509U CN 2302519 Y CN2302519 Y CN 2302519Y
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- China
- Prior art keywords
- circuit
- utility
- model
- metal object
- probe
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- Expired - Fee Related
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Abstract
The utility model belongs to an investigating apparatus for magnetic variables, particularly suitable for investigating reguline metal objects mixed in various bulk materials in conveying of belt conveyers. The utility model is composed of a sensor, an amplifier, a filter, an investigating monitoring circuit, an output drive circuit, a delay circuit, etc. The utility model is characterized in that an oscillator is arranged as a controllable variable oscillator; a discrimination circuit is arranged as a circuit whose predetermined potential can be controlled; the probe of the sensor is designed into an adjustable probe. The utility model has the advantage that one metal object investigating apparatus can investigate the reguline metal objects mixed in various bulk materials in conveying of belt conveyers. The utility model also has the advantages of less equipment, low investment, easy installation, convenient debugging, high sensitivity, reliable operation, etc.
Description
The utility model belongs to test magnetic variable device, especially is fit to belt feeder and transports the detection that mixes the reguline metal object in the multiple bulk material.
Belt feeder is a kind of equipment that transports bulk material that modern industry enterprise extensively adopts.But often mix the bulk metal object in the bulk material of transportation, ironware is in the majority, detects and is rejected as untimely, will tear belt, damage equipment, causes shutting down stopping production.Prior art " metal signal detection instrument " (ZL89213763.0) can only be applied to transport the belt feeder of certain single variety bulk material, is the preset parameter comparer because this technology adopts LC oscillator, its discriminator circuit of single-frequency.In metallurgy industry, a belt feeder transports several bulk materials respectively, has only one as the charging of blast furnace belt feeder, and it will will transport sintering deposit a little while, will transport coke and other auxiliary material etc. a little while according to technological requirement.Because the electrical property difference of every kind of material adopts an above-mentioned metal signal detection instrument, does not then satisfy technological requirement, if adopt many metal signal detection instruments that are suitable for various materials, then cause equipment numerous and jumbled, investment strengthens, and expense improves.
In order to overcome the defective of prior art, the utility model has solved a belt feeder has been transported the detection that mixes the reguline metal object in the multiple bulk material, and sensitivity can be adjusted.
The utility model is the electrical property difference according to different types of bulk material and the reguline metal object that mixes, and these materials and reguline metal object produce different semaphore output by this device back, thereby determine the reguline metal object.The utility model comprises instrument and sensor two parts.Instrument comprises that partly amplifier 2, wave filter 3, monitoring test circuit 4, output driving circuit 5, delay circuit 6, stabilized voltage supply 7 etc. are loaded in the same case by certain ordering.Sensor 1 is made up of transducer 10, probe 11 and support 12.It is characterized in that oscillator is arranged to the oscillator 8 of controlled frequency conversion, discriminator circuit is set to set the controlled circuit of current potential 9, and the probe 11 of sensor is arranged to adjust probe.Set current potential by the frequency, the adjustment discriminator circuit that change oscillator, just can make things convenient for the reguline metal object that detects freely in predefined several bulk material.
The utility model has the advantages that: pick-up unit can detect the reguline metal object that is mingled in when a belt feeder transports multiple bulk material in the material easily, it is few to have equipment, reduced investment, and it is convenient to install, highly debug, highly sensitive, reliable etc.
The equivalent schematic diagram of accompanying drawing 2. oscillators of the present utility model and sensor.
Accompanying drawing 3. discriminator circuit schematic diagrams of the present utility model.
Accompanying drawing 4. sonde configuration synoptic diagram of the present utility model.
Below in conjunction with accompanying drawing embodiment is illustrated in detail.
Described controlled variable frequency oscillator 8 defines with respect to the oscillator of fixed single frequency, and pierce circuit is by the transducer winding, field effect transistor T
1, T
2, capacitor C 1, C2, and formed by the capacitor C 3, C4, C5, the C6 that join with one group of controlled multi-way switch K1, K2.When the material kind changes, by control program gauge tap K1, K2, different electric capacity is inserted in the circuit of oscillator, to produce correspondent frequency vibration output, realization is to mixing the detection of reguline metal object in a certain material, thereby realizes the detection to reguline metal object in the multiple bulk material.
The many group sense channel circuit of described discriminator circuit 9 for selecting automatically, promptly the comparator input terminal at discriminator circuit inserts one group of resistor network R1, R2, R3, R4, R5, R6, R7, R8 by controlled multi-way switch Ks.Realize the discriminator circuit changeable parameters, utilize controlled multi-way switch Ks when oscillation frequency changes, switch different resistance combinations, to select different setting upset level.
Described transducer, its core are soft magnetic material matter magnetic core, and inside is the winding skeleton, are wound with once group and Secondary Winding on it, and fastening with the fastening bolt of nonferromagnetic material, Secondary Winding is guided to terminal block 13 by copper cash, with bolt shell and winding is fixed again.
The described probe of adjusting is on the non-ferromagnetic metal tube of " U " shape, and an adjustment pipe 14 moving up and down is set, and moves adjustment pipe position according to implementing concrete condition, to improve the sensitivity of probe, satisfies different detection requirements.
The utility model is work like this, when belt feeder transports a certain bulk material, at first inserts corresponding electric capacity according to sequence check switch K1, K2, to produce correspondent frequency vibration output; Insert associated resistor by controlled switch Ks, to select to overturn accordingly level, when the reguline metal object that mixes in the bulk material time just produces output signal by probe, just can detect reguline metal object in this a kind of material according to the signal(l)ing condition of output.The testing process of other kind bulk material is as the same.
Claims (4)
1. belt feeder reguline metal object detecting device, form by sensor (1), amplifier (2), wave filter (3), monitoring test circuit (4), output driving circuit (5), delay circuit (6), stabilized voltage supply (7) etc., it is characterized in that: oscillator is arranged to controlled variable frequency oscillator (8), discriminator circuit is set to set the controlled circuit of current potential (9), and the probe (11) of sensor is arranged to adjust probe.
2. belt feeder reguline metal object detecting device according to claim 1 is characterized in that: oscillator (8) circuit adopts one group of controlled multi-way switch K1, K2, inserts one group of capacitor C respectively
3, C
4, C
5, C
6
3. belt feeder reguline metal object detecting device according to claim 1 is characterized in that: the comparator input terminal of discriminator circuit (9) inserts one group of resistor network, by R by controlled multi-way switch Ks
1, R
2, R
3, R
4, R
5, R
6, R
7, R
8Form.
4. belt feeder reguline metal object detecting device according to claim 1 is characterized in that: an adjustment pipe (14) that can move up and down is set on the probe (11) of " U " shape copper pipe again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97236509 CN2302519Y (en) | 1997-07-04 | 1997-07-04 | Block metal material investigating apparatus for belt machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97236509 CN2302519Y (en) | 1997-07-04 | 1997-07-04 | Block metal material investigating apparatus for belt machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2302519Y true CN2302519Y (en) | 1998-12-30 |
Family
ID=33947355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97236509 Expired - Fee Related CN2302519Y (en) | 1997-07-04 | 1997-07-04 | Block metal material investigating apparatus for belt machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2302519Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203624A (en) * | 2015-09-07 | 2015-12-30 | 大连理工大学 | Novel ferromagnetic material detection device and method |
-
1997
- 1997-07-04 CN CN 97236509 patent/CN2302519Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203624A (en) * | 2015-09-07 | 2015-12-30 | 大连理工大学 | Novel ferromagnetic material detection device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |