CN202947782U - Device detecting clear water layer interface online - Google Patents
Device detecting clear water layer interface online Download PDFInfo
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- CN202947782U CN202947782U CN 201220651152 CN201220651152U CN202947782U CN 202947782 U CN202947782 U CN 202947782U CN 201220651152 CN201220651152 CN 201220651152 CN 201220651152 U CN201220651152 U CN 201220651152U CN 202947782 U CN202947782 U CN 202947782U
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- clear water
- water layer
- feeler lever
- stroke switch
- layer interface
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Abstract
The utility model discloses a device detecting a clear water layer interface online and solves the problems that the existing device is hysteretic in control and bad in precision. The device detecting the clear water layer interface online is characterized by comprising a probe rod, a pressure sensor, a guide seat, a support, a lifting device, a displacement sensor, a programmable logic controller (PLC) control box, an up stoke switch and a down stroke switch. The support and the guide seat are installed on a thickener bridge frame, the lifting device and the up stoke switch are installed on the support, and the down stoke switch is installed on the guide seat. The side face of the lifting device is fixed with the displacement sensor, and the lower portion of the lifting device is connected with the probe rod. The pressure sensor is installed in the inner cavity of the probe rod, and a probe head extends out and contacts the liquid level. The probe rod is provided with a limit plate, and the upper panel of the limit plate constantly contacts the displacement sensor. Due to the adoption of the combined pressure sensor and the displacement sensor and the arrangement of the an automatic transferring system which can move up and down and the guide device, the device detecting the clear water layer interface online can automatically detect thickness of the clear water layer in a thickening pond online, achieves automatic control of the concentration process and reduces labor intensity of operators.
Description
Technical field
The utility model relates to a kind of on-line measuring device, more precisely a kind of on-line measuring device for clear water layer thickness detection in concentration basin.
Background technology
The concentrated of ore pulp is a gravity settling process, and it is concentrated that ore pulp enters concentration basin, and water effluxes through overflow weir; Mud effluxes through mud discharging mouth at the bottom of being deposited on the pond.In the gravity settling process, form five zones in concentration basin: clear water zone, turbulent region, sedimentary province, He Ni district, densification district.Each district in concentration basin is in mobile equilibrium, when settling condition changes, and the situation respective change in each district, concentrated effect also changes thereupon.In production practices, people control concentrated effect by the thickness that detects and control the clear water layer, need to detect the thickness of clear water layer for this reason.
Owing to not having ripe online detection instrument measure, adopt feeler lever artificial regularly survey clear water bed interface position and clear water layer thickness in production practices more, find that bed changes the adjusting process condition, to guarantee concentrated effect.The method control hysteresis, low precision, labour intensity are high, poor stability, can not adapt to the needs that modern industry is produced, and have seriously restricted the development of concentration technology process automatic control technology.
Summary of the invention
The purpose of this utility model is to overcome the device that the deficiencies in the prior art provide a kind of online detection concentration basin clear water bed interface and thickness, can automatically carry out the clear water bed interface detects online, control for concentration systems and be provided at the line traffic control parameter, make concentration systems automatically regulate the sedimentation process condition according to the variation of clear water layer thickness, realize that concentration process controls automatically; Automatically detect, improve workman's working environment, reduce operator's labour intensity, eliminate the potential safety hazard of surveying with feeler lever.
The utility model comprises feeler lever, characterized by further comprising pressure transducer, guide holder, bearing, jacking gear, displacement transducer, PLC control box, upper stroke switch, lower stroke switch, bearing and guide holder are arranged on the thickener crane span structure, jacking gear and upper stroke switch are arranged on bearing, and lower stroke switch is arranged on guide holder; The side fixed displacement sensor of jacking gear, the bottom connects feeler lever; Described feeler lever is the closed structure of a hollow, and pressure transducer is arranged in the inner chamber of feeler lever, and the probe of pressure transducer stretches out with liquid level and contacts; Limiting plate is set on feeler lever, the upper plane of limiting plate all the time with the contact of displacement transducer; Pressure transducer, lower stroke switch, upper stroke switch, displacement transducer are connected with the PLC control box by wire.
Described jacking gear is realized the lifting of feeler lever, and pressure transducer detects its pressure when each degree of depth, and displacement transducer shows the position of pressure transducer in real time; Upper and lower stroke switch is controlled the lifting extreme position of feeler lever, and the direction of motion of conversion jacking gear; The signal that in the PLC control box, installation PLC programmable controller reception and processes sensor, travel switch provide moves, shows corresponding numerical value according to the setting program schedule system, and to the centralized control system the transmission of data.Guide holder makes feeler lever at the vertical in-plane moving.This device measure the interface of clear water layer, and according to the pressure jump point, displacement transducer detects interface location and calculates the clear water layer thickness by the sudden change of determination of pressure sensor pressure.It is interval that system arranges the clear water layer thickness variation, during lower than the minimum thickness that allows or higher than the maximum ga(u)ge that allows, system outwards sends alerting signal when the clear water layer thickness, and to centralized control center's transmission numerical value, the requirement system manually or automatically changes process conditions, makes the clear water layer thickness recover normal.
Described feeler lever is a hollow structure, and pressure transducer is installed in the airtight inner chamber of feeler lever, and its probe extends, gaging pressure.Limiting plate is set on feeler lever, this plate top all the time with the contact of displacement transducer, when moving downward, the contact of displacement transducer stretches out downwards automatically; When moving upward, the contact that limiting plate promotes to stretch out is retracted, the position of monitoring pressure in real time sensor; Limiting plate and up and down stroke switch combination realize that extreme position is controlled and the change of direction of motion.Feeler lever rises, limiting plate contact upper stroke switch contact, and when making the upper stroke switch action, rising stops, and jacking gear changes direction of motion, and feeler lever changes into and moving downward; When feeler lever moves downward, when limiting plate touches lower stroke switch and makes its action, move downward and stop, jacking gear changes again direction of motion, and feeler lever is converted to again and moves upward, and so moves in circles.Feeler lever leads through guide holder, and all the time at the vertical in-plane moving, the assurance system can be not stuck because of the beat of feeler lever.Pressure transducer is connected the up and down travel switch and is connected control box by wire with displacement transducer, be that the PLC controller is carried to detect data, and the data of detection are processed through the PLC controller, display measurement result, and outside output signal.The position of travel switch is adjustable, to regulate measurement range.
Principle of work: the utility model utilizes the relation between pressure and the degree of depth, density, adopts pressure sensor is measured each point pressure in turbulent layer and clear water layer calmodulin binding domain CaM one scope, the ratio of calculating pressure and the degree of depth, the detection ratio change point is measured the clear water layer thickness.According to hydraulic principle, in the liquid of same density, the linear variation relation of the degree of depth of pressure and measured position, in the liquid of different densities, pressure is different from the slope of the linear relationship of the degree of depth.In concentration basin, the density variation of clear water layer and turbulent layer is larger, and the pulp density of turbulent layer is much larger than the clear water layer.Therefore after pressure transducer entered turbulent layer by the clear water layer, the ratio of pressure and the degree of depth was undergone mutation, and this point residing position is the interface of concentration basin clear water layer and turbulent layer.The residing position of the real-time gaging pressure sensor of displacement transducer, relatively initial position namely draws the clear water layer thickness.
The utility model can be arranged on a certain position on concentration basin top, pressure transducer is under the effect of jacking gear, move back and forth up and down between clear water layer in concentration basin and turbulent layer, survey the pressure of each depth location in concentration basin in the process of lifting, the position of the real-time detected pressures sensor of displacement transducer, the signal of two sensor detections is input to the PLC control box, through the PLC calculation process, find out the position of concentration sudden change, thereby detect the degree of depth or the thickness of clear water layer in concentration basin.
As shown from the above technical solution, the beneficial effects of the utility model: 1, detect in real time the thickness of clear water layer in concentration basin, replace the artificial clear water layer thickness of surveying, can in time find the variation of concentrated bed, thereby for the timely adjusting process parameter of system provides foundation, guarantee concentrated effect; 2, the utility model adopts pressure sensor and displacement transducer combination, the catastrophe point of gaging pressure and depth relationship curve, mathematical model is succinct, and adopts the PLC routine processes, and fast operation, measuring accuracy are high, and control is promptly and accurately; 3, the element of the utility model employing is "dead", and human body and environment are not had secondary pollution and infringement; 4, the utility model has adopted guide piece, guarantees that feeler lever is positioned at vertical and moves; 5, be provided with the automated conversion system that moves up and down, realize the automatic conversion of lifting; 6, be provided with the clear water layer thickness variation interval, provide convenience for follow-up manual control, satisfy the low occasion of automatic control level and use; 7, in time to the central station of floating dock output signal, for the fuzzy control of concentration systems provides foundation.
Description of drawings
Accompanying drawing is structural representation of the present utility model.
In figure, 1. pressure transducer, 2. feeler lever, 3. guide holder, 4. wire, 5. lower stroke switch, 6. limiting plate, 7. upper stroke switch, 8. bearing, 9. jacking gear, 10. displacement transducer, 11.PLC control box, 12. thickener crane span structures.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in drawings, the utility model comprises feeler lever 2, pressure transducer 1, guide holder 3, bearing 8, jacking gear 9, displacement transducer 10, PLC control box 11, upper stroke switch 7, lower stroke switch 5 etc.
Bearing 8 and guide holder 3 are arranged on thickener crane span structure 12, and jacking gear 9 and upper stroke switch 7 are arranged on bearing 8, and lower stroke switch 5 is arranged on guide holder 3; The side fixed displacement sensor 10 of jacking gear 9, the bottom connects feeler lever 2; Feeler lever 2 is the closed structure of a hollow, bottom setting pressure sensor 1, and the probe of pressure transducer 1 contacts with liquid level; Moving up and down of 3 pairs of feeler levers 2 of guide holder led; Limiting plate 6 is set on feeler lever 2, the upper plane of limiting plate 6 all the time with the contact of displacement transducer 10; Pressure transducer 1, lower stroke switch 5, upper stroke switch 7, displacement transducer 10 are connected with PLC control box 11 by wire 4.The wire 4 of Bonding pressure sensor 1 does not contact with liquid, enters in the hollow channel of feeler lever 2 on liquid level top.
The contact of pressure transducer 1, feeler lever 2, displacement transducer 3 is with jacking gear 9 liftings, in real time the pressure of detected pressures sensor 1 position and position.Lower stroke switch 5, upper stroke switch 7 are controlled the minimum and the highest shift position of feeler lever 2 with limiting plate 6 combinations by PLC control box 11, and realize the transformation of jacking gear 9 direction of motion.
The PLC programmable controller is housed in PLC control box 11, and according to the action of the program of setting, control pick-up unit, processing signals shows that data also provide various signals and data to concentrated control system.
Claims (1)
1. online device that detects the clear water bed interface, comprise feeler lever, characterized by further comprising pressure transducer (1), guide holder (3), bearing (8), jacking gear (9), displacement transducer (10), PLC control box (11), upper stroke switch (5), lower stroke switch (7), bearing (8) and guide holder (3) are arranged on thickener crane span structure (12), jacking gear (9) and upper stroke switch (5) are arranged on bearing (8), lower stroke switch (7) is arranged on guide holder (3), the side fixed displacement sensor (10) of jacking gear (9), the bottom connects feeler lever (2), described feeler lever (2) is the closed structure of a hollow, and pressure transducer (1) is arranged in the inner chamber of feeler lever (2), and the probe of pressure transducer (1) stretches out with liquid level and contacts, limiting plate (6) is set on feeler lever (2), the upper plane of limiting plate (6) all the time with the contact of displacement transducer (10), pressure transducer (1), lower stroke switch (5), upper stroke switch (7), displacement transducer (10) are connected with PLC control box (11) by wire (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651152 CN202947782U (en) | 2012-12-02 | 2012-12-02 | Device detecting clear water layer interface online |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651152 CN202947782U (en) | 2012-12-02 | 2012-12-02 | Device detecting clear water layer interface online |
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| CN202947782U true CN202947782U (en) | 2013-05-22 |
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| CN 201220651152 Expired - Fee Related CN202947782U (en) | 2012-12-02 | 2012-12-02 | Device detecting clear water layer interface online |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017712A (en) * | 2012-12-02 | 2013-04-03 | 淮北重科矿山机器有限公司 | Online detection device of clear water layer thickness of concentration tank |
| CN103512484A (en) * | 2013-09-29 | 2014-01-15 | 华北水利水电大学 | Drill-type instrument for automatically measuring depth of ice layer and measuring method thereof |
| CN108195281A (en) * | 2017-12-22 | 2018-06-22 | 太原理工大学 | A kind of ice layer thickness measuring device based on piezomagnetic material |
| CN108195282A (en) * | 2017-12-22 | 2018-06-22 | 太原理工大学 | A kind of ice layer thickness measuring device based on piezoresistance sensor |
| CN116147731A (en) * | 2023-04-23 | 2023-05-23 | 成都开图医疗系统科技有限公司 | Liquid level detection method of layered liquid interface |
-
2012
- 2012-12-02 CN CN 201220651152 patent/CN202947782U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017712A (en) * | 2012-12-02 | 2013-04-03 | 淮北重科矿山机器有限公司 | Online detection device of clear water layer thickness of concentration tank |
| CN103017712B (en) * | 2012-12-02 | 2015-09-16 | 淮北重科矿山机器有限公司 | Concentration basin clear water layer thickness on-line measuring device |
| CN103512484A (en) * | 2013-09-29 | 2014-01-15 | 华北水利水电大学 | Drill-type instrument for automatically measuring depth of ice layer and measuring method thereof |
| CN103512484B (en) * | 2013-09-29 | 2016-08-17 | 华北水利水电大学 | Brill formula ice layer thickness automatic measuring instrument and measuring method thereof |
| CN108195281A (en) * | 2017-12-22 | 2018-06-22 | 太原理工大学 | A kind of ice layer thickness measuring device based on piezomagnetic material |
| CN108195282A (en) * | 2017-12-22 | 2018-06-22 | 太原理工大学 | A kind of ice layer thickness measuring device based on piezoresistance sensor |
| CN116147731A (en) * | 2023-04-23 | 2023-05-23 | 成都开图医疗系统科技有限公司 | Liquid level detection method of layered liquid interface |
| CN116147731B (en) * | 2023-04-23 | 2023-07-21 | 成都开图医疗系统科技有限公司 | Liquid level detection method of layered liquid interface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20141202 |
|
| EXPY | Termination of patent right or utility model |