CN101713681A - Mining material detection circuit and device - Google Patents
Mining material detection circuit and device Download PDFInfo
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- CN101713681A CN101713681A CN200910249768A CN200910249768A CN101713681A CN 101713681 A CN101713681 A CN 101713681A CN 200910249768 A CN200910249768 A CN 200910249768A CN 200910249768 A CN200910249768 A CN 200910249768A CN 101713681 A CN101713681 A CN 101713681A
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Abstract
The invention discloses mining material detection circuit and device, belonging to the technical field of material detection, and providing mining material detection circuit and device which have advantages of large work range, energy saving, and capability of alarming at both a short circuit state and an open circuit state. In the mining material detection circuit, an output end of a transformer is sequentially connected with a control circuit, an indicating circuit, a tilting switch and a diode; the control circuit is formed by a parallel connection between a direct current relay and a capacitance; the indicating circuit is formed by a parallel connection of two circuits, wherein one circuit is formed by a series connection between a normally closed contact of the direct current relay and a first indicating light, and the other circuit comprises a second indicating light; and the indicating circuit is in a parallel connection with a reset circuit. The invention is applied to material belt type conveying equipment in the fields of machinery, energy source, electric power, transportation and the like.
Description
Technical field
Mining material detection circuit of the present invention and device belong to material detection technique field.
Background technology
Tilt switch that U.S. Ramsay company produces and control plate, be mainly used on the industrial and mineral belt conveyer of colliery, coal washery etc., cause material to bring end belt in order to prevent charging conduit to be blocked and make device damage, after finding that in production practices probe is pounded by material, cable causes short circuit again, stopping up appears in material, causes the major accident that stopped production more than 10 hour.Because the work under bad environment of industrial and mineral, moisture is big, and dust is many, and the staff is assorted, and material detection device the decline of connection line insulation resistance, line short often occur and opens circuit, and has a strong impact on and produces and cause hidden danger.In addition, under the working range of existing product, when line insulation resistance dropped to 1500K Ω, with regard to cisco unity malfunction, what also have existing step-down method employing was load step-down, and equipment energy consumption is big.When waiting solid accumulation to reach warning line sometimes, not run-off the straight when the appearance probe is withstood by material, and the situation that tilts to report to the police.
Summary of the invention
For overcoming the deficiencies in the prior art, mining material detection circuit and the device that the invention provides that a kind of working range is big, energy-conservation, short circuit and off state can be reported to the police.
For solving the problems of the technologies described above, the technical solution used in the present invention is: mining material detection circuit, comprise: transformer, control circuit, indicating circuit, tilt switch, diode, its circuit is that the output terminal of transformer links to each other with control circuit, indicating circuit, tilt switch and diode successively, described control circuit is composed in parallel by DC relay and electric capacity, described indicating circuit is to be composed in parallel by the two-way circuit, one the tunnel be by the normally closed contact of DC relay with after first pilot lamp is connected, another road is made up of second pilot lamp.
At the other reset circuit that is parallel with of described indicating circuit.
The device of making according to described mining material detection circuit, the structure of this device is: transformer is connected with control device, indicating device and probe successively, control circuit is arranged in the control device, indicating circuit is arranged in the indicating device, is arranged in the probe after tilt switch and the diode series connection.
Described mining material pick-up unit also comprises reset switch.
Described mining material pick-up unit also comprises the molecular output of external connection end by the control of DC relay contact.
The bottom shape of described probe is cambered surface or sphere.
The present invention compares the beneficial effect that has with prior art:
1, adopt circuit of the present invention can both effectively report to the police, and mining material pick-up unit of the present invention is simple in structure, cost is low in short circuit with when opening circuit.
2, show that through the experiment more than 1 year line insulation of the present invention just can operate as normal more than 10K Ω, produce, surpass under the situation of 400 Ω, press reset switch at insulation resistance as being badly in need of, just can operate as normal, widened the working range of material detection device.
3, the step-down method among the present invention adopts the transformer step-down, compares with traditional load step-down, has reduced energy consumption, energy savings.
4, the bottom shape of the probe among the present invention is cambered surface or sphere, avoided can not occurring when probe is withstood by material, and the situation that does not tilt to report to the police.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is circuit theory diagrams of the present invention;
Fig. 2 is a structural representation of the present invention.
Among the figure 1 for transformer, 2 for control circuit, 3 for indicating circuit, 4 for tilt switch, 5 for diode, 6 for DC relay, 7 for electric capacity, 8 for normally closed contact, 9 be that first pilot lamp, 10 is that second pilot lamp, 11 is output, 16 reset switches for probe, 15 for indicating device, 14 for control device, 13 for reset circuit, 12.
Embodiment
As shown in Figure 1, the circuit that mining material detects, comprise: transformer 1, control circuit 2, indicating circuit 3, tilt switch 4 and diode 5, wherein power supply by transformer 1 step-down successively with control circuit 2, indicating circuit 3, tilt switch 4 links to each other with diode 5, described control circuit 2 is composed in parallel by DC relay 6 and electric capacity 7, described indicating circuit 3 is to be composed in parallel by the two-way circuit, one the tunnel by the normally closed contact 8 of DC relay 6 with form after first pilot lamp 9 is connected, another road is made up of second pilot lamp 10, at the indicating circuit 3 other reset circuits 11 that are parallel with, reset circuit 11 is made up of conventional reset switch, wherein power supply is industrial voltage 380V or household electricity 220V, be sinusoidal voltage, fall into 36V or following safe voltage behind transformer 1, a kind of preferred compositions of the present invention is: DC relay 6 is DC36V, electric capacity 7 is 50V/470 μ F, first pilot lamp 9 is 2w/30V, second pilot lamp 10 is 2w/30V, diode 5 is IN4001.
A, material normal condition: when source current was in positive half cycle, electric current gave electric capacity 7 chargings through transformer 1, arrive DC relay 6 simultaneously, its normally closed contact 8 disconnects, and electric current is from second pilot lamp 10, arrive diode 5 through tilt switch 4 again, return transformer 1 at last, form the loop; When source current is in negative half period, because of diode 5 has the unilateal conduction effect, so DC relay 6 is kept adhesive under the effect of electric capacity 7 discharges, normally closed contact 8 keeps disconnecting, and electric current arrives diode 5 through tilt switch 4 again from second pilot lamp 10, return transformer 1 at last, form the loop; In sum, material just often, first pilot lamp 9 goes out, second pilot lamp 10 is bright;
B, material exceed warning line: behind the tilt switch inclination certain angle, tilt switch 4 disconnects, and does not have electric current in the circuit, first pilot lamp 9 goes out, second pilot lamp 10 goes out, DC relay 6 outages simultaneously, and the external equipment of being controlled by DC relay 6 contacts quits work.
C, open circuit: do not have electric current in the circuit, first pilot lamp 9 goes out, and second pilot lamp 10 goes out, and DC relay 6 outages are simultaneously quit work by the external equipment of DC relay 6 contacts control.
D, short circuit: because of having lost the rectified action of diode 5, again because of impedance after DC relay 6 logical the interchanges is big, so operating current is not enough in the DC relay 6, its normally closed contact 8 closures, the external equipment of being controlled by DC relay 6 contacts quits work; And alternating current passes through first pilot lamp 9 and second pilot lamp 10 in parallel again through electric capacity 7, passes through short circuit trouble point again, returns transformer 1 at last, forms the loop, and first pilot lamp 9 is bright, and second pilot lamp 10 is bright; The state of this moment is an alarm condition.
As shown in Figure 2, the device of making according to the described mining material detection circuit of Fig. 1, transformer 1 is successively with control device 12, indicating device 13 with pop one's head in and 14 be connected, control circuit 2 is arranged in the control device 12, indicating circuit 3 is arranged in the indicating device 13, is arranged in the probe 14 after tilt switch 4 and diode 5 series connection; Described indicating device 13 is composed in parallel by first pilot lamp 9 and second pilot lamp 10, first pilot lamp 9 goes out, second pilot lamp 10 is bright, show that solid accumulation is normal on the conveyor, first pilot lamp 9 goes out, second pilot lamp 10 goes out, show on the conveyor that solid accumulation exceeds warning line or the mining material pick-up unit opens circuit, first pilot lamp is 9 bright, second pilot lamp 10 is bright, shows that the material detecting device detects circuit short trouble is arranged; The step-down method is by transformer 1 step-down, compares with traditional load step-down, has reduced energy consumption, energy savings; Described mining material pick-up unit also comprises reset switch 16, as be badly in need of producing, surpasses under the situation of 400 Ω at insulation resistance, presses reset switch 16, just can operate as normal, widened the working range of material detecting device; Described mining material pick-up unit also comprises the molecular output 15 of external connection end by the control of DC relay 6 contacts, under the situation that the material detecting device is reported to the police, stops peripherals automatically, has effectively protected equipment; The bottom shape of described probe 14 is cambered surface or sphere, not run-off the straight when having avoided appearance probe 14 to be withstood, and the situation that tilts to report to the police; Adopt circuit of the present invention can both effectively report to the police, and mining material pick-up unit of the present invention is simple in structure, cost is low, is fit to large-scale promotion application in short circuit with when opening circuit; Other structures are described consistent with Fig. 1.
Type of alarm among the present invention also can adopt method for distinguishing, as buzzer siren, audible-visual annunciator etc., also can offer industrial computer signal etc.
Claims (6)
1. mining material detection circuit, comprise: transformer (1), control circuit (2), indicating circuit (3), tilt switch (4) and diode (5), it is characterized in that: the output terminal of transformer (1) successively with control circuit (2), indicating circuit (3), tilt switch (4) links to each other with diode (5), described control circuit (2) is composed in parallel by DC relay (6) and electric capacity (7), described indicating circuit (3) is to be composed in parallel by the two-way circuit, one tunnel normally closed contact (8) by DC relay (6) with form after first pilot lamp (9) is connected, another road is made up of second pilot lamp (10).
2. mining material detection circuit according to claim 1 is characterized in that: at the other reset circuit (11) that is parallel with of indicating circuit (3).
3. the device of making according to the described mining material detection circuit of claim 1, the structure that it is characterized in that this device is: transformer (1) is connected with control device (12), indicating device (13) and probe (14) successively, control circuit (2) is arranged in the control device (12), indicating circuit (3) is arranged in the indicating device (13), is arranged in the probe (14) after tilt switch (4) and diode (5) series connection.
4. device according to claim 3 is characterized in that: described mining material pick-up unit also comprises reset switch (16).
5. device according to claim 3 is characterized in that: described mining material pick-up unit also comprises the molecular output of external connection end (15) by the control of DC relay (6) contact.
6. device according to claim 3 is characterized in that: the bottom shape of described probe (14) is cambered surface or sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102497681A CN101713681B (en) | 2009-12-02 | 2009-12-02 | Mining material detection circuit and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102497681A CN101713681B (en) | 2009-12-02 | 2009-12-02 | Mining material detection circuit and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101713681A true CN101713681A (en) | 2010-05-26 |
| CN101713681B CN101713681B (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102497681A Expired - Fee Related CN101713681B (en) | 2009-12-02 | 2009-12-02 | Mining material detection circuit and device |
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| Country | Link |
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| CN (1) | CN101713681B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104090197A (en) * | 2014-06-30 | 2014-10-08 | 南京理学工程数据技术有限公司 | Novel low-current branch circuit disconnection detection circuit and method |
| CN104477608A (en) * | 2014-11-24 | 2015-04-01 | 芜湖新兴铸管有限责任公司 | Belt material breaking automatic warning device |
| CN111132388A (en) * | 2019-11-23 | 2020-05-08 | 关铭佳 | Electronic induction type explosion-proof device of hand warmer |
| CN114520494A (en) * | 2022-03-07 | 2022-05-20 | 李连海 | Safety limiting device for electric equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB875437A (en) * | 1959-02-03 | 1961-08-23 | Gilbert & Barker Mfg Co | Electronic level sensing apparatus |
| CN2729660Y (en) * | 2004-09-07 | 2005-09-28 | 李鹏含 | Waterlevel measuring meter for solar energy water heater |
| WO2006131822A2 (en) * | 2005-06-10 | 2006-12-14 | Thermo Ramsey Italia S.R.L. | Level sensor with optoelectronic tilt switch |
| CN201218745Y (en) * | 2008-06-24 | 2009-04-08 | 开滦精煤股份有限公司范各庄矿业分公司 | Simple measuring bin alarm apparatus |
-
2009
- 2009-12-02 CN CN2009102497681A patent/CN101713681B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104090197A (en) * | 2014-06-30 | 2014-10-08 | 南京理学工程数据技术有限公司 | Novel low-current branch circuit disconnection detection circuit and method |
| CN104090197B (en) * | 2014-06-30 | 2017-02-01 | 南京理学工程数据技术有限公司 | Low-current branch circuit disconnection detection circuit and method |
| CN104477608A (en) * | 2014-11-24 | 2015-04-01 | 芜湖新兴铸管有限责任公司 | Belt material breaking automatic warning device |
| CN111132388A (en) * | 2019-11-23 | 2020-05-08 | 关铭佳 | Electronic induction type explosion-proof device of hand warmer |
| CN114520494A (en) * | 2022-03-07 | 2022-05-20 | 李连海 | Safety limiting device for electric equipment |
| CN114520494B (en) * | 2022-03-07 | 2023-10-20 | 太原山开吉羽电力工程有限公司 | Safety limiting device for electric equipment |
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| Publication number | Publication date |
|---|---|
| CN101713681B (en) | 2012-03-14 |
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