CN112212943A - Material level detection device for ore bin - Google Patents
Material level detection device for ore bin Download PDFInfo
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- CN112212943A CN112212943A CN202011090204.0A CN202011090204A CN112212943A CN 112212943 A CN112212943 A CN 112212943A CN 202011090204 A CN202011090204 A CN 202011090204A CN 112212943 A CN112212943 A CN 112212943A
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- 238000001514 detection method Methods 0.000 title claims abstract description 129
- 239000000463 material Substances 0.000 title abstract description 23
- 238000002955 isolation Methods 0.000 claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 239000011521 glass Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 208000002177 Cataract Diseases 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 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
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
- G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
- G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
- G01F23/2925—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means
- G01F23/2927—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means for several discrete levels, e.g. with more than one light-conducting sensing element
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- Physics & Mathematics (AREA)
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention 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, wherein the photosensitive detection structure is arranged on the 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. The invention can solve the problem that the prior art lacks a measuring device with low cost, high accuracy and no influence of the use environment factors of dust and water vapor.
Description
Technical Field
The invention belongs to the technical field of material level measurement, and particularly relates to a material level detection device for an ore bin.
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.
Disclosure of Invention
In view of the above problems, the present invention provides a device for detecting the material level in an ore bin, so as to solve the problem that the prior art lacks a measuring device which has low cost, is not affected by the environmental factors of dust and water vapor and has high accuracy.
The invention 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, wherein the photosensitive detection structure is arranged on the 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.
Furthermore, it is preferable that the fixing member is a hydraulic fastening structure.
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 scheme, 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 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 invention is based on optical and electrical principles, is suitable for material level detection of large storage bins of iron and steel enterprises, is not influenced by severe environments such as high dust emission and high humidity in the bins, ensures the measurement accuracy and saves the cost.
To the accomplishment of the foregoing and related ends, one or more aspects of the invention comprise the features hereinafter fully described. The following description and the annexed drawings set forth in detail certain illustrative aspects of the invention. These aspects are indicative, however, of but a few of the various ways in which the principles of the invention may be employed. Further, the present invention is intended to include all such aspects and their equivalents.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description taken in conjunction with the accompanying drawings. In the drawings:
FIG. 1 is a schematic structural view of an ore bin level detecting apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating the detection principle of the detection unit according to the embodiment of the present invention;
FIG. 3 is a schematic diagram of an internal structure of a detecting unit according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an external structure of a detecting unit according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of connections between detecting units according to an 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 invention, fig. 1 shows the structure of the ore bin level detecting device according to the embodiment of the invention; FIG. 2 illustrates the detection principle of the detection unit of an embodiment of the present invention; FIG. 3 shows an internal structure of a detection unit of an embodiment of the present invention; FIG. 4 shows an external structure of a detection unit of the embodiment of the present invention; fig. 5 shows a connection structure between the sensing units according to an embodiment of the present invention.
As shown in fig. 1 to fig. 3, the device for detecting the material level of the ore bin provided by the present invention 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 invention is based on optical and electrical principles, is suitable for material level detection of large storage bins of iron and steel enterprises, is not influenced by severe environments such as high dust emission and high humidity in the bins, ensures the measurement accuracy and saves the cost.
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.
The number of the basic detecting elements 111 included in the detecting unit 11 can be set according to actual needs, and a preferred embodiment of the present invention is that the length of each basic detecting element 111 is 5cm, the detecting unit 11 includes 20 basic detecting elements 111 connected in series at equal intervals, and the basic detecting elements 111 connected in series form a loop.
As shown in fig. 3, as a preferred aspect of the present invention, the detection 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 aspect 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 card 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 preferable aspect of the present invention, the unit case 112 is a rectangular stainless steel case; 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 solution of the invention, vertical channels are provided on the inner side walls of the ore bin 4, to which the unit housings 112 are fixed by means of fixing elements 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 of a hydraulic fastening structure. The hydraulic fastening structure is convenient to fix and is firmly fixed.
As a preferred aspect of the present invention, the light-providing structure comprises at least four groups of stable light sources uniformly arranged at the top end of the ore bin 4. 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 and a field interlock control device 33 respectively connected to the switch 31. 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.
In a preferred embodiment of the present invention, a dc power supply 8 is connected to a power supply connection port 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 embodiment, the photosensitive detection structure of the device for detecting the material level of the ore bin 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 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 invention is based on optical and electrical principles, is suitable for material level detection of large storage bins of iron and steel enterprises, is not influenced by severe environments such as high dust emission and high humidity in the bins, ensures the measurement accuracy and saves the cost.
The proposed ore bin level detecting device according to the present invention is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the mine level detection apparatus of the present invention described above without departing from the spirit and scope of the invention. Therefore, the scope of the present invention should be determined by the contents 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 7,
the fixing element is of a hydraulic fastening structure.
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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011090204.0A CN112212943A (en) | 2020-10-13 | 2020-10-13 | Material level detection device for ore bin |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011090204.0A CN112212943A (en) | 2020-10-13 | 2020-10-13 | Material level detection device for ore bin |
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| CN202011090204.0A Pending CN112212943A (en) | 2020-10-13 | 2020-10-13 | Material level detection device for ore bin |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113200256A (en) * | 2021-04-30 | 2021-08-03 | 国家能源集团科学技术研究院有限公司 | Stock bin with material level measuring device |
| CN113532591A (en) * | 2021-06-21 | 2021-10-22 | 上海建工建材科技集团股份有限公司 | Novel online material level detection device and using method thereof |
-
2020
- 2020-10-13 CN CN202011090204.0A patent/CN112212943A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113200256A (en) * | 2021-04-30 | 2021-08-03 | 国家能源集团科学技术研究院有限公司 | Stock bin with material level measuring device |
| CN113200256B (en) * | 2021-04-30 | 2024-04-16 | 国家能源集团科学技术研究院有限公司 | From feed bin of taking material position measuring device |
| CN113532591A (en) * | 2021-06-21 | 2021-10-22 | 上海建工建材科技集团股份有限公司 | Novel online material level detection device and using method thereof |
| CN113532591B (en) * | 2021-06-21 | 2023-10-31 | 上海建工建材科技集团股份有限公司 | Novel online material level detection device and application method thereof |
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