CN213301393U - Material level detection device for ore bin - Google Patents
Material level detection device for ore bin Download PDFInfo
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- CN213301393U CN213301393U CN202022267635.1U CN202022267635U CN213301393U CN 213301393 U CN213301393 U CN 213301393U CN 202022267635 U CN202022267635 U CN 202022267635U CN 213301393 U CN213301393 U CN 213301393U
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Abstract
The utility model provides a material level detection device of an ore bin, which comprises a photosensitive detection structure, a signal conversion device and a main control device; the photosensitive detection structure comprises a detection unit, the detection unit comprises at least two basic detection elements which are vertically connected in series, and the basic detection elements which are connected in series form a closed loop; the basic detection element comprises a resistor and a photoelectric switch connected with the resistor in parallel; the photosensitive detection structure is vertically arranged on the inner side wall of the ore bin, and a light supply structure for providing a light source for the photosensitive detection structure is arranged at the top end of the ore bin; the signal conversion device comprises a resistance signal wire electrically connected with the detection unit and an isolation transmitter electrically connected with the resistance signal wire; the isolation transmitter is connected with the main control device. Utilize the utility model discloses can solve and lack a low cost, not influenced by the service environment factor of raise dust and steam, the measuring equipment problem of the high ore bin material level of accuracy at present in prior art.
Description
Technical Field
The utility model belongs to the technical field of the material level measurement, more specifically, relate to an ore bin material level detection device.
Background
The material level detection of the ore bin plays an important role in the automation process of modern steel or coal mines and the like, can estimate the volume or weight of the raw materials stored in the discharge bin, and is convenient for subsequent automatic control according to the volume or weight of the current raw materials.
At present, a weighing level indicator or a radar level indicator is generally adopted for measuring the level of an ore bin in the steel industry. Wherein, the weighing level indicator is expensive, and the manufacturing cost is increased; radar level gauges, in turn, are measuring devices based on the time-travel principle, the radar waves running at the speed of light and the running time being converted into a level signal by electronic components. The probe emits high frequency pulses which propagate along the cable, and when the pulses encounter the surface of the material, the pulses are reflected back to be received by a receiver in the instrument, and the distance signals are converted into level signals.
However, the radar level gauge is easily influenced by dust, water vapor and the like in the using process, the deviation of the measuring result is large, and sometimes even the radar level gauge cannot be normally used, so that the PLC control system makes wrong judgment, and the feeding and the discharging are influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model aims at providing an ore bin material level detection device to solve the present measuring equipment problem that lacks a low cost, does not receive the service environment factor influence of raise dust and steam, the ore bin material level that the accuracy is high among the prior art.
The utility model provides a material level detection device of an ore bin, which comprises a photosensitive detection structure, a signal conversion device and a main control device; the photosensitive detection structure comprises a detection unit, wherein the detection unit comprises at least two basic detection elements which are vertically connected in series, and the basic detection elements which are connected in series form a closed loop; the basic detection element comprises a resistor and a photoelectric switch connected with the resistor in parallel; the photosensitive detection structure is vertically arranged on the inner side wall of the ore bin, and a light supply structure for providing a light source for the photosensitive detection structure is arranged at the top end of the ore bin; the signal conversion device comprises a resistance signal wire electrically connected with the detection unit and an isolation transmitter electrically connected with the resistance signal wire; the isolation transmitter is connected with the main control device.
In addition, it is preferable that the detection unit further includes a unit housing; the basic detection elements are connected in series at equal intervals and are packaged in the unit shell; loop cables are vertically packaged in the unit shell; a serial connection terminal and a loop cable connection terminal are arranged at both ends of the unit shell; the series connection terminal is connected to an end of a connection line for connecting the basic detection element in series; the loop cable wiring terminal is connected with the end of the loop cable.
In addition, it is preferable that the photosensitive detection structure includes at least two detection units; the serial connection terminals between the adjacent detection units are connected through cables; the loop cable wiring terminals between the adjacent detection units are connected through cables; the series connection terminal of the side end of one of the detection units is in short circuit with the loop cable terminal; and the serial connection terminal and the loop cable connection terminal at the edge end of the other detection unit are both connected with the resistance signal wire.
In addition, it is preferable that a connection card slot is provided at one end of the unit housing; a connecting clamping block matched with the connecting clamping groove is arranged at the other end of the unit shell; and the adjacent detection units are connected with each other in an inserting manner through connecting clamping grooves and connecting clamping blocks.
Further, it is preferable that a row of lighting windows be provided at equal intervals in a vertical direction of the unit case.
In addition, preferably, the unit housing is a rectangular stainless steel housing; and/or the lighting window is an explosion-proof glass window.
Furthermore, it is preferred that a vertical channel is provided on the inner side wall of the ore bin, to which the unit casing is fixed by means of fixing elements.
Preferably, a dc power supply is connected to a power supply connection port of the isolation transmitter.
In addition, it is preferable that the light supply structure comprises at least four groups of stable light sources uniformly arranged at the top end of the ore bin.
In addition, the preferred scheme is that the master control device comprises a switch connected with the isolation transmitter, a computer system and a field interlocking control device, wherein the computer system and the field interlocking control device are respectively connected with the switch.
According to the technical solution, the utility model provides an ore bin material level detection device, through the sensitization detection structure, the sensitization detection structure includes detecting element, and detecting element includes two at least basic detecting element that vertically establish ties, and the basic detecting element after establishing ties constitutes closed circuit; the basic detection element comprises a resistor and a photoelectric switch connected with the resistor in parallel; the detection unit is connected with the resistance signal wire; the resistance signal wire is connected with the isolation transmitter; the isolation transmitter is connected with the main control device; after the light sensing detection structure receives the illumination, a resistance signal is fed back in real time, the signal is sent to the main control device through the isolation converter, and the main control device converts the resistance value into the corresponding height of the material in the mine bin according to the measured resistance value, so that subsequent linkage control is realized. The utility model discloses based on optics and electricity principle, be applicable to the material level detection of the large-scale storage silo of iron and steel enterprise, do not receive interior raise dust big, the high slightly environmental impact of disliking of humidity height, practice thrift the cost when guaranteeing measurement accuracy.
Drawings
Other objects and results of the invention will be more apparent and readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the invention is more fully understood. In the drawings:
fig. 1 is a schematic structural view of an ore bin level detecting device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a detection principle of the detection unit according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an internal structure of a detection unit according to an embodiment of the present invention;
fig. 4 is an external structural diagram of a detection unit according to an embodiment of the present invention;
fig. 5 is a schematic view of connection between the detecting units according to the embodiment of the present invention.
In the figure, 1-photosensitive detection structure, 11-detection unit, 111-basic detection element, 1111-resistor, 1112-photoelectric switch, 112-unit shell, 1121-loop cable, 1122-series connection terminal, 1123-loop cable connection terminal, 1124-connection card slot, 1125-connection card block, 1126-lighting window, 21-resistor signal line, 22-isolation transmitter, 3-main control device, 31-switch, 32-computer system, 33-field interlocking control device, 4-ore bin, 5-closed loop, 6-series connection line, 7-fixed element, 8-direct current power supply and 9-instrument box.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details.
The ore bin material level detection device is provided aiming at the problem that the prior art is lack of a measuring device which is low in cost, free of the influence of the use environment factors of raised dust and water vapor and high in accuracy.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In order to illustrate the ore bin level detecting device provided by the present invention, fig. 1 shows the structure of the ore bin level detecting device according to the embodiment of the present invention; fig. 2 shows the detection principle of the detection unit of the embodiment of the present invention; fig. 3 shows an internal structure of a detection unit according to an embodiment of the present invention; fig. 4 shows an external structure of a detection unit of an embodiment of the present invention; fig. 5 shows a connection structure between the detecting units according to an embodiment of the present invention.
As shown in fig. 1 to fig. 3, the utility model provides an ore bin level detection device, which comprises a photosensitive detection structure 1, a signal conversion device and a main control device 3; the photosensitive detection structure 1 comprises a detection unit 11, wherein the detection unit 11 comprises at least two basic detection elements 111 which are vertically connected in series, and the basic detection elements 111 which are connected in series form a closed loop 5; the basic detection element 111 includes a resistance 1111 and a photo switch 1112 connected in parallel to the resistance 1111; the photosensitive detection structure 1 is vertically arranged on the inner side wall of the ore bin 4, and a light supply structure for providing a light source for the photosensitive detection structure 1 is arranged at the top end of the ore bin 4; the signal conversion device comprises a resistance signal wire 21 electrically connected with the detection unit 11 and an isolation transmitter 22 electrically connected with the resistance signal wire 21; the isolation transmitter 22 is connected to the main control device 3.
By the photosensitive detection structure 1, the photosensitive detection structure 1 comprises a detection unit 11, the detection unit 11 comprises at least two basic detection elements 111 which are vertically connected in series, and the basic detection elements 111 which are connected in series form a closed loop; the basic detection element 111 includes a resistance 1111 and a photo switch 1112 connected in parallel to the resistance 1111; the detection unit 11 is connected with a resistance signal line 21; the resistance signal wire 21 is connected with an isolation transmitter 22; the isolation transmitter 22 is connected with the main control device 3; after the light sensing detection structure 1 receives the illumination, a resistance signal is fed back in real time, the signal is sent to the main control device 3 through the isolation converter 22, and the main control device 3 converts the resistance value into the corresponding height of the material in the mine bin according to the measured resistance value, so that the subsequent linkage control is realized. The utility model discloses based on optics and electricity principle, be applicable to the material level detection of the large-scale storage silo of iron and steel enterprise, do not receive interior raise dust big, the high slightly environmental impact of disliking of humidity height, practice thrift the cost when guaranteeing measurement accuracy.
Specifically, as shown in fig. 2, the basic detection element 111 includes a resistor 1111 and a photo switch 1112 connected in parallel with the resistor 1111, wherein the resistance value of the resistor 1111 is preferably 10 ohms, when the basic detection element 111 receives illumination, the photo switch 1112 is turned on, and in a closed circuit, the resistance value of the resistor 1111 becomes 0 ohms; when light is shielded by the material, the photoelectric switch is switched off, and the resistance value of the resistor 1111 is restored to the original resistance value of 10 ohms. Each detection unit 11 includes at least two basic detection elements 111 connected in series vertically, and the number, i.e. the length, of the basic detection elements 111 that are shielded can be reflected by measuring the resistance value of the circuit after the series connection. For example, each detecting unit 11 has a length of 50mm, and a bin level with a height of 10m needs to be measured, and the number of detecting units 11 needed to be used is as follows:
n is 1000cm/5cm is 200 (pieces) of length of the ore bin height/detection unit 11
The detection unit 11 is vertically and continuously arranged on the inner side wall of the ore bin 4, so that the measurement of the material level in the bin can be completed.
Wherein, the number of the basic detecting elements 111 that the detecting unit 11 includes can be set according to actual need, a preferred embodiment of the present invention is, the length of each basic detecting element 111 is 5cm, the detecting unit 11 includes 20 basic detecting elements 111 connected in series with equal distance, the basic detecting elements 111 connected in series constitute a loop.
As shown in fig. 3, as a preferred embodiment of the present invention, the detecting unit 11 further includes a unit housing 112; the basic detection elements 111 are connected in series at equal intervals and are packaged inside the unit shell 112; and a loop cable 1121 is vertically packaged inside the unit case 112; a series connection terminal 1122 and a loop cable connection terminal 1123 are provided at both ends of the unit case 112; the series connection terminal 1122 is connected to an end of the connection line 6 for series connection between the basic detection elements 111; loop cable connection terminal 1123 is connected to an end of loop cable 1121.
The basic detecting elements 111 are equidistantly packaged in the unit housing 112, the loop cables 1121 are packaged in the unit housing 112, and meanwhile, by providing the serial connection terminal 1122 and the loop cable connection terminal 1123 at both ends of the unit housing 112, the on-site quick installation can be realized, and meanwhile, the measurement accuracy is improved by the standardization of the prefabricated member. The length of the unit case 112 is preferably 1m, but may be set as needed, and is not particularly limited.
As shown in fig. 3 to 5, collectively as a preferred embodiment of the present invention, the photosensitive detecting structure 1 includes at least two detecting units 11; the series connection terminals 1122 between the adjacent detection units 11 are connected by a cable; the loop cable connecting terminals between the adjacent detection units 11 are connected through cables; in addition, the detection units 11 at two ends, wherein the serial connection terminal 1122 and the loop cable connection terminal 1123 at the edge end of one detection unit 11 are short-circuited; the serial connection terminal 1122 and the return cable connection terminal 1123 at the side end of the other detection unit 11 are both connected to the resistance signal line 21. Through the design, the length of the unit shell 112 of the detection unit 11 is standardized and preset, the measurement precision is improved, the number of the detection units 11 can be determined according to the height of the detected pre-manufactured ore bin 4, and the rapid field installation is realized.
As shown in fig. 4, as a preferred embodiment of the present invention, a connection slot 1124 is provided at one end of the unit housing 112; a connecting block 1125 fitted with the connecting block 1124 is disposed at the other end of the unit housing 112; the adjacent detecting units 11 are connected with each other through the connecting clamping groove 1124 and the connecting clamping block 1125 in an inserting manner. The connecting clamping groove 1124 and the connecting fixture block 1125 are convenient for the seamless connection of two adjacent detection units 11, so that the measurement precision is further improved; and, the adjacent detecting units 11 are connected in an inserting manner, so that the field installation is facilitated, and the installation efficiency is improved.
As a preferable aspect of the present invention, a row of lighting windows 1126 is provided equidistantly in the vertical direction of the unit case 112. Conveniently located within the light source access unit housing 112.
As a preferred scheme of the present invention, the unit housing 112 is a rectangular stainless steel housing; and/or, the daylight window 1126 is an explosion-proof glass window. The unit housing 112 is preferably 1000mmx100mmx40mm, the stainless steel material is preferably provided with 10 lighting windows 1126 with 50mmx30mm on the surface of the unit housing 112, and the windows are made of wear-resistant and explosion-proof glass, are firm and are convenient for light sources to enter.
As a preferred aspect of the present invention, a vertical channel is provided on the inner side wall of the ore bin 4, and the unit housing 112 is fixed on the vertical channel by the fixing member 7. The vertical channel is arranged in the ore bin 4, the size of the vertical channel is matched with that of the unit shell 112, and the vertical channel is fixed on the inner side wall of the vertical channel through the fixing elements 7 at two sides of the unit shell 112.
As a preferred embodiment of the present invention, the fixing element 7 is a hydraulic fastening structure. The hydraulic fastening structure is convenient to fix and is firmly fixed.
As the preferred scheme of the utility model, supply light structure including evenly set up four group at least stable light source on 4 tops in ore bin. 4 stable light source of design, evenly install at 4 top edges in ore deposit storehouse to do not sheltered from by material pinnacle or storehouse cataract obstacle and produce the detection error when guaranteeing that detecting element 11 accepts light. Wherein, the stable light source is a light source of a lighting lamp.
As a preferred embodiment of the present invention, the main control device 3 includes a switch 31 connected to the isolation transmitter 22, a computer system 32 connected to the switch 31, and a field interlock control device 33. The resistance signal line 21 converts the resistance signal of the detection unit 11 into a 4-20 mA standard signal through the signal isolation transmitter 22, sends the signal to the switch 31, sends the signal to the computer system 32 after the signal exchange of the switch 31, the computer system 32 converts the resistance value into the corresponding material height in the ore bin 4 according to the measured resistance value, and sends the signal to the field interlocking control device 33, so that the interlocking control of monitoring, recording, alarming and the like of the upper computer is realized.
As a preferred embodiment of the present invention, a dc power supply 8 is connected to a power supply connector of the isolation transmitter 22. A dc power supply 8 is used to power the isolation transmitter 22. To protect the isolation transmitter 22 and the dc power supply 8, the isolation transmitter 22 and the dc power supply 8 are provided in the meter box 9.
According to the above-mentioned specific implementation mode, the utility model provides an ore bin material level detection device, through the sensitization detection structure, the sensitization detection structure includes the detecting element, and the detecting element includes at least two basic detecting element that vertically establish ties, and the basic detecting element after establishing ties constitutes closed loop; the basic detection element comprises a resistor and a photoelectric switch connected with the resistor in parallel; the detection unit is connected with the resistance signal wire; the resistance signal wire is connected with the isolation transmitter; the isolation transmitter is connected with the main control device; after the light sensing detection structure receives the illumination, a resistance signal is fed back in real time, the signal is sent to the main control device through the isolation converter, and the main control device converts the resistance value into the corresponding height of the material in the mine bin according to the measured resistance value, so that subsequent linkage control is realized. The utility model discloses based on optics and electricity principle, be applicable to the material level detection of the large-scale storage silo of iron and steel enterprise, do not receive interior raise dust big, the high slightly environmental impact of disliking of humidity height, practice thrift the cost when guaranteeing measurement accuracy.
The ore bin level detection device according to the present invention has been described above by way of example with reference to the accompanying drawings. However, it should be understood by those skilled in the art that various modifications can be made to the above-mentioned device for detecting the level of the ore bin without departing from the scope of the present invention. Therefore, the scope of the present invention should be determined by the content of the appended claims.
Claims (10)
1. The ore bin level detection device is characterized by comprising a photosensitive detection structure, a signal conversion device and a main control device; wherein the content of the first and second substances,
the photosensitive detection structure comprises a detection unit, the detection unit comprises at least two basic detection elements which are vertically connected in series, and the basic detection elements which are connected in series form a closed loop; the basic detection element comprises a resistor and a photoelectric switch connected with the resistor in parallel;
the photosensitive detection structure is vertically arranged on the inner side wall of the ore bin, and a light supply structure for providing a light source for the photosensitive detection structure is arranged at the top end of the ore bin;
the signal conversion device comprises a resistance signal wire electrically connected with the detection unit and an isolation transmitter electrically connected with the resistance signal wire;
the isolation transmitter is connected with the main control device.
2. The ore bin level detecting device according to claim 1,
the detection unit further comprises a unit housing;
the basic detection elements are connected in series at equal intervals and are packaged in the unit shell; loop cables are vertically packaged in the unit shell;
a serial connection terminal and a loop cable connection terminal are arranged at both ends of the unit shell;
the series connection terminal is connected to an end of a connection line for connecting the basic detection element in series; the loop cable wiring terminal is connected with the end of the loop cable.
3. The ore bin level detecting device according to claim 2,
the photosensitive detection structure comprises at least two detection units;
the serial connection terminals between the adjacent detection units are connected through cables; the loop cable wiring terminals between the adjacent detection units are connected through cables; and the number of the first and second electrodes,
the detection units are positioned at two ends, and a series connection terminal at the edge end of one detection unit is in short circuit with a loop cable terminal; and the serial connection terminal and the loop cable connection terminal at the edge end of the other detection unit are both connected with the resistance signal wire.
4. The ore bin level detecting device according to claim 2,
a connecting clamping groove is formed in one end of the unit shell;
a connecting clamping block matched with the connecting clamping groove is arranged at the other end of the unit shell;
and the adjacent detection units are connected with each other in an inserting manner through connecting clamping grooves and connecting clamping blocks.
5. The ore bin level detecting device according to claim 2,
and a row of lighting windows are equidistantly arranged in the vertical direction of the unit shell.
6. The ore bin level detecting device according to claim 5,
the unit shell is a rectangular stainless steel shell; and/or the presence of a gas in the gas,
the lighting window is an explosion-proof glass window.
7. The ore bin level detecting device according to claim 2,
a vertical channel is arranged on the inner side wall of the ore bin, and the unit shell is fixed on the vertical channel through a fixing element.
8. The ore bin level detecting device according to claim 1,
and a power supply connector of the isolation transmitter is connected with a direct-current power supply.
9. The ore bin level detecting device according to claim 1,
the light supply structure comprises at least four groups of stable light sources which are uniformly arranged at the top end of the ore bin.
10. The ore bin level detecting device according to claim 1,
the main control device comprises a switch connected with the isolation transmitter, a computer system and a field interlocking control device, wherein the computer system and the field interlocking control device are respectively connected with the switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022267635.1U CN213301393U (en) | 2020-10-13 | 2020-10-13 | Material level detection device for ore bin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022267635.1U CN213301393U (en) | 2020-10-13 | 2020-10-13 | Material level detection device for ore bin |
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| Publication Number | Publication Date |
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| CN213301393U true CN213301393U (en) | 2021-05-28 |
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| CN202022267635.1U Active CN213301393U (en) | 2020-10-13 | 2020-10-13 | Material level detection device for ore bin |
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| CN (1) | CN213301393U (en) |
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