CN203470141U - Automatic measuring and controlling system for density of dense medium suspension liquid - Google Patents
Automatic measuring and controlling system for density of dense medium suspension liquid Download PDFInfo
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- CN203470141U CN203470141U CN201320574236.7U CN201320574236U CN203470141U CN 203470141 U CN203470141 U CN 203470141U CN 201320574236 U CN201320574236 U CN 201320574236U CN 203470141 U CN203470141 U CN 203470141U
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Abstract
The utility model belongs to the technologies of automatic detecting and controlling, and provides an automatic measuring and controlling system for density of dense medium suspension liquid. The automatic measuring and controlling system comprises a medium barrel liquid level control system, a medium density control system, a dense medium suspension liquid coal slime content control system, a hydrocyclone inlet pressure control system and a centralized control system, wherein the medium barrel liquid level control system is composed of an ultrasonic liquid level sensor, a water supplementing valve and a water supplementing valve feedback signal sensor, the medium density control system is composed of a differential pressure density sensor, a water adding valve and a water adding valve feedback signal sensor, the dense medium suspension liquid coal slime content control system is composed of a magnetic material content sensor and a flow distributing box, the hydrocyclone inlet pressure control system is composed of a frequency converter and a pressure sensor, and the centralized control system is composed of a lower computer and an upper computer. The automatic measuring and controlling system achieves online real-time measurement and control, guarantees that the density of dense medium suspension liquid is stabilized within a reasonable range, and has the advantages of being reasonable in structure, high in automation degree, good in measuring and controlling precision and low in operation labor intensity.
Description
Technical field
The utility model belongs to automatic Test and control, relates generally to a kind of coal preparation plant heavy-media suspension density automatic measuring and controlling system.
Background technology
In heavy media coal separation production process, must to carry out observing and controlling to parameters such as the magnetic material content in the liquid level of medium bucket, qualified medium, Media density, cyclone inlet pressures.At present, to the detection of parameter in coal separation process with control the main manual type that relies on and carry out, however the problems such as that detecting often appears in manual type is inaccurate, control lag, inconvenience management.Therefore be necessary to invent a kind of efficient automaton
Summary of the invention
The purpose of this utility model is exactly problem low for above-mentioned existing coal preparation plant heavy-media suspension density observation and control technology level, that part relies on hand labor power, a kind of heavy-media suspension density automatic measuring and controlling system is provided, is able to detect online relevant parameter, realizes the object that Media density was automatically controlled, reduced operator's labour intensity, improves coal separation productivity effect.
Basic Design of the present utility model is, heavy-media suspension density automatic measuring and controlling system comprises by ultrasonic liquid level sensor, moisturizing valve, the medium bucket tank level control system that moisturizing valve feedback signal sensor forms, by differential density sensor, priming valve door, the Media density control system that priming valve door feedback signal sensor forms, by magnetic material content sensor, current divider box forms coal slurry content control system in heavy-media suspension, by frequency converter, the cyclone inlet pressure control system that pressure sensor forms and by slave computer, the centralized control system that host computer forms, wherein the signal output part of magnetic material content sensor, differential density sensor, pressure sensor, ultrasonic liquid level sensor, priming valve door feedback signal sensor, moisturizing valve feedback signal sensor is all connected with the signal input part of slave computer, and the signal input part of frequency converter, priming valve door, moisturizing valve, current divider box is all connected with the signal output part of slave computer, described slave computer is communicated with by Ethernet with host computer, and described priming valve door feedback signal sensor is connected with moisturizing valve with priming valve door respectively with moisturizing valve feedback signal sensor.
The utility model has been realized the on-line automatic real-time observing and controlling of the various relevant parameters of heavy-media suspension density in coal preparation plant, guarantee that heavy-media suspension is in the reasonable scope density stabilized, have rational in infrastructure, automaticity is high, observing and controlling precision is good, the low feature of operation labour intensity.
Accompanying drawing explanation
Accompanying drawing is heavy-media suspension density automatic measuring and controlling system structure configuration schematic diagram.
Piece number explanation in figure:
1, priming valve door feedback signal sensor, 2, moisturizing valve feedback signal sensor, 3, ultrasonic liquid level sensor, 4, pressure sensor, 5, magnetic material content sensor, 6, differential density sensor, 7, slave computer, 8, frequency converter, 9, priming valve door, 10, moisturizing valve, 11, current divider box, 12, host computer.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model optimum implementation is described in detail.A kind of coincidence matter density of suspending liquid automatic measuring and controlling system, described control system comprises by ultrasonic liquid level sensor 3, moisturizing valve 10, the medium bucket tank level control system that moisturizing valve feedback signal sensor 2 forms, by differential density sensor 6, priming valve door 9, the Media density control system that priming valve door feedback signal sensor 1 forms, by magnetic material content sensor 5, current divider box 11 forms coal slurry content control system in heavy-media suspension, by frequency converter 8, the cyclone inlet pressure control system that pressure sensor 4 forms and by slave computer 7, the centralized control system that host computer 12 forms, wherein the signal output part of magnetic material content sensor 5, differential density sensor 6, pressure sensor 4, ultrasonic liquid level sensor 3, priming valve door feedback signal sensor 1, moisturizing valve feedback signal sensor 2 is all connected with the signal input part of slave computer 7, and the signal input part of frequency converter 8, priming valve door 9, moisturizing valve 10, current divider box 11 is all connected with the signal output part of slave computer 7, described slave computer 7 is communicated with by Ethernet with host computer 12, and described priming valve door feedback signal sensor 1 is connected with moisturizing valve 10 with priming valve door 9 respectively with moisturizing valve feedback signal sensor 2.Described slave computer 7 adopts Siemens PLC C programmable logic controller (PLC).Described host computer 12 is west gate industrial computer.
Operation process is: slave computer 7 is according to the feedback signal of the liquid level detected value of 3 pairs of medium buckets of ultrasonic liquid level sensor and moisturizing valve feedback signal sensor 2, and computation and measurement value and setting value compare, and calculate Deviation Control to moisturizing valve 10; Slave computer 7 is according to the Density Detection value of 6 pairs of media of differential density sensor and priming valve door 9 feedback signals, and computation and measurement value and setting value compare, and calculate deviation, adopts FUZZY ALGORITHMS FOR CONTROL to control priming valve door 9; Slave computer 7, according to the detected value of 5 pairs of magnetic material contents of magnetic material content sensor and Media density detected value, is derived nonmagnetics content, and computation and measurement value and setting value compare, and calculate deviation, and current divider box 11 is controlled; Slave computer 7 is according to the detected value of 4 pairs of cyclone inlet pressures of pressure sensor, and computation and measurement value and setting value compare, and calculate deviation, and frequency converter 8 is controlled; Host computer 12 and slave computer 7 carry out exchanges data by Ethernet, can set controlling parameter, show each parameter detecting value of dense media.
Claims (3)
1. a heavy-media suspension density automatic measuring and controlling system, it is characterized in that described control system comprises by ultrasonic liquid level sensor (3), moisturizing valve (10), the medium bucket tank level control system that moisturizing valve feedback signal sensor (2) forms, by differential density sensor (6), priming valve door (9), the Media density control system that priming valve door feedback signal sensor (1) forms, by magnetic material content sensor (5), current divider box (11) forms coal slurry content control system in heavy-media suspension, by frequency converter (8), the cyclone inlet pressure control system that pressure sensor (4) forms and by slave computer (7), the centralized control system that host computer (12) forms, wherein the signal output part of magnetic material content sensor (5), differential density sensor (6), pressure sensor (4), ultrasonic liquid level sensor (3), priming valve door feedback signal sensor (1), moisturizing valve feedback signal sensor (2) is all connected with the signal input part of slave computer (7), and the signal input part of frequency converter (8), priming valve door (9), moisturizing valve (10), current divider box (11) is all connected with the signal output part of slave computer (7), described slave computer (7) is communicated with by Ethernet with host computer (12), and described priming valve door feedback signal sensor (1) is connected with moisturizing valve (10) with priming valve door (9) respectively with moisturizing valve feedback signal sensor (2).
2. heavy-media suspension density automatic measuring and controlling system according to claim 1, is characterized in that described slave computer (7) adopts Siemens PLC C programmable logic controller (PLC).
3. heavy-media suspension density automatic measuring and controlling system according to claim 1, is characterized in that described host computer (12) is west gate industrial computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320574236.7U CN203470141U (en) | 2013-09-04 | 2013-09-04 | Automatic measuring and controlling system for density of dense medium suspension liquid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320574236.7U CN203470141U (en) | 2013-09-04 | 2013-09-04 | Automatic measuring and controlling system for density of dense medium suspension liquid |
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| CN203470141U true CN203470141U (en) | 2014-03-12 |
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| CN201320574236.7U Expired - Fee Related CN203470141U (en) | 2013-09-04 | 2013-09-04 | Automatic measuring and controlling system for density of dense medium suspension liquid |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106406083A (en) * | 2015-07-28 | 2017-02-15 | 曲阜师范大学 | Fuzzy control coal dressing method |
| CN108993761A (en) * | 2018-07-20 | 2018-12-14 | 西安科技大学 | Coal selector and control method for coordinating based on heavy-media suspension density and liquid level |
| CN108993762A (en) * | 2018-07-20 | 2018-12-14 | 西安科技大学 | A kind of heavy media coal separation level and density control device and control method for coordinating |
| CN110328049A (en) * | 2019-07-02 | 2019-10-15 | 太原理工大学 | Dense medium suspension density control system and its control method |
| CN113210119A (en) * | 2021-04-13 | 2021-08-06 | 华电电力科学研究院有限公司 | Intelligent dense medium sorting system and working method thereof |
| CN113640176A (en) * | 2021-07-30 | 2021-11-12 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Lime milk specific gravity measuring method, device and system and computer readable storage medium |
-
2013
- 2013-09-04 CN CN201320574236.7U patent/CN203470141U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106406083A (en) * | 2015-07-28 | 2017-02-15 | 曲阜师范大学 | Fuzzy control coal dressing method |
| CN108993761A (en) * | 2018-07-20 | 2018-12-14 | 西安科技大学 | Coal selector and control method for coordinating based on heavy-media suspension density and liquid level |
| CN108993762A (en) * | 2018-07-20 | 2018-12-14 | 西安科技大学 | A kind of heavy media coal separation level and density control device and control method for coordinating |
| CN108993761B (en) * | 2018-07-20 | 2020-03-31 | 西安科技大学 | Coordination control method based on dense medium suspension density and liquid level |
| CN108993762B (en) * | 2018-07-20 | 2020-06-05 | 西安科技大学 | Density and liquid level control device for dense medium coal separation and coordination control method |
| CN110328049A (en) * | 2019-07-02 | 2019-10-15 | 太原理工大学 | Dense medium suspension density control system and its control method |
| CN110328049B (en) * | 2019-07-02 | 2021-10-15 | 太原理工大学 | Dense medium suspension density control system and control method thereof |
| CN113210119A (en) * | 2021-04-13 | 2021-08-06 | 华电电力科学研究院有限公司 | Intelligent dense medium sorting system and working method thereof |
| CN113640176A (en) * | 2021-07-30 | 2021-11-12 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Lime milk specific gravity measuring method, device and system and computer readable storage medium |
| CN113640176B (en) * | 2021-07-30 | 2024-02-20 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Lime milk specific gravity measuring method, device, system and computer readable storage medium |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20140904 |
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| EXPY | Termination of patent right or utility model |