CN109596181A - On-line continuous Weighing type ore pulp multiparameter measurement and control device and method - Google Patents
On-line continuous Weighing type ore pulp multiparameter measurement and control device and method Download PDFInfo
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- CN109596181A CN109596181A CN201910113712.7A CN201910113712A CN109596181A CN 109596181 A CN109596181 A CN 109596181A CN 201910113712 A CN201910113712 A CN 201910113712A CN 109596181 A CN109596181 A CN 109596181A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Automation & Control Theory (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention discloses a kind of on-line continuous Weighing type ore pulp multiparameter measurement and control device and method, belongs to mineral processing and detection field of measuring techniques.The measure and control device is made of detection components, energy dissipating component, control assembly.Measuring device of the present invention includes detection components, energy dissipating component and control assembly；Wherein control assembly includes host computer, programmable logic controller (PLC) PLC and regulating valve；The present invention is used to measure density, concentration, mass flow, the volume flow of ore pulp or slurry；The control to thickener underflow concentration may be implemented；Not only accurate and reliable but also convenient and practical, the density of the new ore pulp of automatic control, concentration, material dry measure, mass flow, the measurement method of volume flow can be easy to implement.
Description
Technical field
The present invention relates to a kind of on-line continuous Weighing type multiparameter measurement and control device and methods, belong to mineral processing and detection meter
Measure technical field.
Background technique
The grinding-classification operation in dressing plant, various sorting operations, chats concentration desliming operation, concentrate, the concentration of tailing are de-
Water operation etc., as long as the test problems for thering is the place of ore pulp to all refer to the parameters such as concentration, density.
At this stage in mineral manufacture field, the detection of pulp density mainly has nucleon density detector, ultrasonic density inspection
Survey the modes such as instrument and manual sampling weighing detection.Requirement of the nucleon density detector due to having used radioactive source, to security protection
Very high, there are the risks of escape of radioactivity, are abandoned by many dressing plants.It is multiple then to there is concentration calibration in ultrasonic density detector
It miscellaneous, the defects of measurement accuracy is not high enough, is of limited application.And manual sampling weighing detection, and there are large labor intensity, samplings
Representativeness it is poor, it is difficult to realize automatic control the problems such as.Summary of the invention to solve the above problems, the purpose of the present invention is to provide
It is a kind of not only accurate and reliable but also convenient and practical, it is able to achieve the density of on-line continuous test and the ore pulp automatically controlled, concentration, material
Dry measure, mass flow, volume flow measure and control device and method.
The present invention realizes that measure and control device includes detection components, energy dissipating component, control assembly by following technical measures；
The control assembly includes host computer, programmable logic controller (PLC) and regulating valve；
The energy dissipating component includes energy dissipating outer groove (4), energy dissipating inside groove (3), and ore discharge pipe (5) divides sample pipe (8), probe tube
(9), lower ring washer (6) and upper ring washer (7)；Wherein energy dissipating inside groove (3) is the container of circle or other shapes, by wear-resistant material system
It makes, bottom closing, upper opening, ore pulp overfall is arranged in upper position wherein；Disappear in the external setting of energy dissipating inside groove (3)
Energy outer groove (4), bottom seal, upper opening.The retaining ring (6) under the setting of the appropriate location of ore discharge pipe (5), upper retaining ring (7),
Energy dissipating outer groove (4) divides sample pipe (8) and probe tube close to what the appropriate location of lower part was uniformly arranged multiple identical caliber sizes
(9)。
The detection components include liquid level sensor (13), weight sensor (12), switch valve (11), weighing hopper (10).
In the weighing hopper (10) of the following side of probe tube (9) setting suitable dimension and container, upper part is open, and bottom setting can change up fastly
The switch valve (11) closed, container integral hanging are supported on gravity sensor (12), and upper position setting liquid level passes in a reservoir
Discharge pipe is arranged in its extreme lower position in the outer container (14) of the external setting bottom angled of whole sampler in sensor (13)
(15), energy dissipating inside groove (3) and energy dissipating outer groove (4) are supported by the small support frame (16) inside outer container is arranged in and fixed, outer container by
The big support frame (17) that outer bottom portion is arranged in supports and fixes, and the weighing of device, metering, valve regulated, data show and pass
It is defeated to be completed by external control system (18).
The retaining ring (6) under the setting of the appropriate location of ore discharge pipe (5), upper retaining ring (7) prevent ore pulp from splashing, and are arranged in energy dissipating
Slot and energy dissipating outer groove, carrying out secondary energy dissipating to ore pulp makes the ore pulp after energy dissipating that the liquid level in outer groove can be maintained substantially steady.
The density formula of the application material isWherein ρ is the density of material, and m is the quality of material, and v is material
Volume.If the volume v of material is remained unchanged, the quality m of material is measured, the density p of material can be obtained.
Relational expression between the concentration c and density p of the application material is The concentration of material
C and material dry measure m0Between relational expression beThe mass flow q of materialmWith the matter of tested material
Amount m between relational expression beThe volume flow q of materialvWith flow through section fluid volume v between relational expression be
Working principle: the ore pulp in dense small cone bucket 1 controls flow and concentration by regulating valve 2.Since device is whole high
Degree can reach 6-12 meters it is even higher, after valve opening, the ore pulp being discharged by underflow discharge pipe under high static pressure with compared with
High speed enters energy dissipating inside groove, and ore pulp carries out disappearing for the first time in it interior.Quickly the ore pulp after overturning is from energy dissipating inside groove
Energy dissipating outer groove, which is overflowed into, along surrounding at ore pulp overflow port and upper opening carries out second of energy dissipating.Ore pulp after energy dissipating can maintain
Liquid level in outer groove is substantially steady, and most of ore pulp is directly discharged into onto the wedged bottom of outer container 14 from dividing in sample pipe 8, takes therein one
Part is flowed into weighing hopper 10 certainly by probe tube 9.Weighing and metering process are automatically performed by external control system.Mine
When slurry enters weighing hopper 10 from probe tube 9, switch valve 11 is closed, and the time relay is started to work, and reaches specified volume liquid
The time spent in level sensor issues the ore pulp weight that signal intercepts the moment at once, while record reaches nominal volume, then should
The concentration mensuration of secondary ore pulp and flow measurement have been completed, and can obtain the close of the period ore pulp by relevant theoretical calculation
Degree, concentration, mass flow, volume flow, material dry measure.
After being measured, the quick standard-sized sheet of regulating valve 12, the ore pulp in weighing hopper 10 is quickly discharged from valve bottom, and divides sample
The ore pulp of pipe is discharged into subsequent job by ore pulp delivery pipe 15 after outer container mixing.After the completion of measuring for the first time, it can be spaced
Repeat second or repeatedly measurement (by set-up of control system) for a period of time, the desirable average value repeatedly measured is as the survey
The data for section of fixing time are output to display screen or other desired place as the technological parameter of equipment.
After underflow parametric measurement, the open degree of cone bucket bottom electrically operated valve can be controlled by control system to realize to its bottom
Flow the automatic control of discharge.According to the concentration range for requiring setting thickener underflow discharge, when METHOD FOR CONTINUOUS DETERMINATION measured concentration is lower than
When setting concentration minimum, then valve opening is suitably turned down, in the range of subsequent measurements concentration reaches setting.It is surveyed when continuous
When peak of the concentration higher than setting concentration is surveyed in timing, then the aperture of big valve is suitably opened, until subsequent measurements concentration reaches and sets
In fixed range.When measurement concentration beyond in dense range half an hour still for adjust automatically in place or underflow occurs blocking and breaks
When stream, then sound-light alarm is issued by control system, have and manually handled, switchs to automatic control mode again after processing is up to standard.
The application measuring principle: the density formula of material isWherein ρ is the density of material, and m is the matter of material
Amount, v are the volume of material.If the volume v of material is remained unchanged, the density p of material is can be obtained in the quality m for measuring material.
Relational expression between the concentration c and density p of material isWherein c is tested material
Concentration, ρ0For the natural density (siccative density) of solid matter contained by fluid, ρ is the concentration of detected fluid, ρcFor benchmark density
That is the density of water.
The concentration c and material dry measure m of material0Between relational expression beWherein c is measured object
The concentration of material, m0For the quality of siccative, mcFor the quality of water.
The mass flow q of materialmRelational expression between the quality m of tested material isWherein qmFor measured object
The mass flow of material, m are the quality of tested material, and t is the time that material flows through effective cross-section.
The volume flow q of materialvWith flow through section fluid volume v between relational expression beWherein qvFor quilt
The mass flow of material is surveyed, v is the fluid volume for flowing through section, and t is the time that material flows through effective cross-section.
The present invention is used to measure density, concentration, mass flow, the volume flow of ore pulp or slurry；It may be implemented to dense
The control of machine underflow density；Not only accurate and reliable but also convenient and practical, it can be easy to implement the density of the new ore pulp of automatic control, it is dense
Degree, material dry measure, mass flow, the investigating method of volume flow.
Detailed description of the invention
Fig. 1 is overall structure figure of the invention.
Fig. 2 is measuring device figure of the invention.
In figure: 1 dense small cone bucket；2 regulating valves；3 energy dissipating inside grooves；4 energy dissipating outer grooves；5 ore discharge pipes；6 lower retaining rings；Retaining ring on 7；
8 points of sample pipes；9 probe tubes；10 weighing hoppers；11 switch valves；12 gravity sensors；13 liquid level sensors；14 outer containers；15 discharge pipes；
16 small support frames；17 big support frames；18 outer connected control systems.
Specific embodiment
With reference to the accompanying drawings and examples, the invention will be further described.
Weighing type multiparameter measurement and control device of the present invention includes detection components, energy dissipating component, control assembly.The control group
Part includes PC machine and programmable logic controller (PLC).The energy dissipating component includes energy dissipating outer groove, energy dissipating inside groove, and ore discharge pipe divides sample
Pipe, probe tube, lower ring washer, upper ring washer.
It is described as shown in Fig. 2, detection components include liquid level sensor, weight sensor, switch valve, weighing hopper.It is sampling
The weighing hopper 10 of following side the setting suitable dimension and container of pipe 9, the container are open topped, and bottom setting can change up fastly closes
Switch valve 11, container integral hanging are supported on gravity sensor 12, and liquid level sensor 13 is arranged in upper position in a reservoir,
The outer container 14 of the external setting bottom angled of whole sampler, is arranged discharge pipe 15 in its extreme lower position.Energy dissipating inside groove and disappear
Can outer groove supported by small support frame 16 inside outer container is arranged in and fixed, outer container is by being arranged in the big support frame 17 in outer bottom portion
It supports and fixes, the weighing of device, metering, valve regulated, data are shown and transmitted by external control system 18 and completed.
When work: underflow ore pulp controls flow and concentration by the regulating valve 2 of dense small 1 bottom of cone bucket, certainly by static pressure
Stream is emitted into energy dissipating inside groove 3, and energy dissipating inside groove is the container of circle or other shapes, is manufactured by wear-resistant material, bottom closing, on
Portion's opening, ore pulp overfall is arranged in upper position wherein.The setting energy dissipating outer groove 4 outside energy dissipating inside groove, bottom seal,
Upper opening.
The retaining ring 6 under the top of energy dissipating inside groove, the appropriate location setting of the ore discharge pipe 5 of pneumatic control valve bottom, it is therefore an objective to
Prevent ore pulp from splashing.In the top of energy dissipating outer groove, the appropriate location of the ore discharge pipe 5 of pneumatic control valve bottom, upper retaining ring 7, mesh are set
Be equally to prevent ore pulp from splashing.Multiple identical caliber sizes are uniformly set close to the appropriate location of lower part in energy dissipating outer groove 4
Divide sample pipe 8 and probe tube 9.
Embodiment: the ore pulp in dense small cone bucket controls flow and concentration by regulating valve 2.Due to device whole height
Can reach 6-12 meters it is even higher, after valve opening, the ore pulp being discharged by underflow discharge pipe is under high static pressure with higher
Speed enter energy dissipating inside groove, ore pulp carries out first time energy dissipating in it.Ore pulp quickly overturn after from the ore pulp of energy dissipating inside groove
Energy dissipating outer groove, which is overflowed into, along surrounding at overflow port and upper opening carries out second of energy dissipating.Ore pulp after energy dissipating can maintain outer groove
Interior liquid level is substantially steady, and most of ore pulp is directly discharged into onto the wedged bottom of outer container 14 from dividing in sample pipe 8, takes therein a logical
From flowing into weighing hopper 10, weighing and metering process are automatically performed over sampling pipe 9 by external control system.
When ore pulp enters weighing hopper 10 from probe tube 9, switch valve 11 is closed, and the time relay is started to work, and reaches volume
Liquid level sensor issues signal when fixed volume, intercepts the ore pulp weight at the moment at once, while record reaches nominal volume institute
Time spent, then the concentration mensuration of the secondary ore pulp and flow measurement have been completed.This can be obtained by relevant theoretical calculation
Density, concentration, mass flow, the volume flow of period ore pulp, material dry measure.After being measured, the quick standard-sized sheet of regulating valve 12, meter
Ore pulp in batch box 10 is quickly discharged from valve bottom, passes through 15 row of ore pulp delivery pipe after outer container mixes with the ore pulp of sample pipe is divided
Enter subsequent job out.
After the completion of measuring for the first time, can certain interval of time (being arranged by PLC control system) repeat second or more
Secondary measurement, the desirable average value repeatedly measured are output to display as the technological parameter of equipment as the data of the minute section
Screen or other desired place.
Above in conjunction with attached drawing, the embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned
Embodiment within the knowledge of a person skilled in the art can also be before not departing from present inventive concept
It puts and makes a variety of changes.
Claims (6)
1. a kind of more ore pulp parameters measuring and controlling apparatus of on-line continuous Weighing type, it is characterised in that: measure and control device includes detection components, disappears
It can component and control assembly；Wherein control assembly includes host computer, programmable logic controller (PLC) PLC and regulating valve；
The energy dissipating component includes energy dissipating inside groove (3), energy dissipating outer groove (4), and ore discharge pipe (5) divides sample pipe (8), probe tube (9), under
Ring washer (6) and upper ring washer (7)；It is cased with an energy dissipating inside groove (3) in energy dissipating outer groove (4), constitutes inside and outside two layers of energy dissipating space, is disappearing
Can outer groove (4) outer wall be provided with multiple identical caliber sizes being connected to energy dissipating outer groove (4) divide sample pipe (8) and/or probe tube
(9)；
The detection components include liquid level sensor (13), weight sensor (12), switch valve (11) and weighing hopper (10)；It is taking
The following side of sample pipe (9) outlet is provided with weighing hopper (10), and bottom is arranged in external in weighing hopper (10) container entirety sampler
The inclined outer container in portion (14), in outer container (14), extreme lower position is provided with discharge pipe (15)；
Energy dissipating inside groove (3) and energy dissipating outer groove (4) are by being arranged in small support frame (16) support inside outer container and fixing, and outer container is by setting
It sets the big support frame (17) in outer bottom portion to support and fix, the dense small cone bucket (1) of outer upper box part setting board concentrating box is dense small
Cone bucket (1) bottom is connected to delivery pipe, and the outlet of delivery pipe is located at the inside of energy dissipating inside groove (3), is provided with regulating valve in pipeline
(2)；The weighing of device, metering, valve regulated, data are shown and are transmitted by external control system (18) and completed.
2. on-line continuous Weighing type multiparameter measurement and control device according to claim 1, it is characterised in that: the energy dissipating inside groove
It (3) is the container of circle or other shapes, bottom closing, upper opening, ore pulp overfall is arranged in upper position wherein,
Energy dissipating outer groove (4) are arranged in the external of energy dissipating inside groove (3), bottom seal, upper opening；In ore discharge pipe (5) outer wall and energy dissipating
The top position of slot (3) upper opening is provided with lower retaining ring (6), in ore discharge pipe (5) outer wall and energy dissipating outer groove (4) upper opening
Upper retaining ring (7) are arranged in top position.
3. on-line continuous Weighing type multiparameter measurement and control device according to claim 1, it is characterised in that: the weighing hopper
(10) switch valve (11) are arranged in the bottom of open topped shape, weighing hopper (10), and weighing hopper (10) container integral hanging is supported on
On gravity sensor (12), in weighing hopper (10), upper vessel portion inner wall is provided with liquid level sensor (13).
4. on-line continuous Weighing type multiparameter measurement and control device according to claim 1, it is characterised in that: in the ore discharge pipe
(5) energy dissipating inside groove and energy dissipating outer groove is arranged to prevent ore pulp from splashing in retaining ring (6) and upper retaining ring (7) under setting, to ore pulp into
The secondary energy dissipating of row makes the ore pulp after energy dissipating that the liquid level in outer groove can be maintained substantially steady.
5. a kind of method for carrying out on-line continuous Weighing type multiparameter measurement and control using device described in claim 1, feature exist
In: detailed process is as follows: the ore pulp in dense small cone bucket (1), controls flow and concentration by regulating valve (2)；After valve opening,
The ore pulp being discharged by underflow discharge pipe enters energy dissipating inside groove (3) under high static pressure with higher speed, and ore pulp is at it
Interior progress first time energy dissipating；Quickly the ore pulp after overturning is from the ore pulp overflow port and upper opening of energy dissipating inside groove (3) along surrounding
It overflows into energy dissipating outer groove (4) and carries out second of energy dissipating；Ore pulp after energy dissipating can maintain the liquid level in energy dissipating outer groove (4) to put down substantially
Surely, most of ore pulp is directly discharged into onto the wedged bottom of outer container (14) from dividing in sample pipe (8), and portion therein is taken to pass through probe tube
(9) it flows into certainly in weighing hopper (10)；Weighing and metering process are automatically performed by external control system；
When ore pulp enters weighing hopper (10) from probe tube (9), switch valve (11) is closed, and the time relay is started to work, and is reached
When specified volume liquid level, sensor issues the ore pulp weight that signal intercepts the moment at once, while record reaches nominal volume
The time spent in, then the concentration mensuration of the secondary ore pulp and flow measurement have been completed, and can be obtained by relevant theoretical calculation
Density, concentration, mass flow, the volume flow of the period ore pulp, material dry measure；
After being measured, regulating valve (12) quick standard-sized sheet, the ore pulp in weighing hopper (10) is quickly discharged from valve bottom, and divides sample
The ore pulp of pipe is discharged into subsequent job by ore pulp delivery pipe (15) after outer container mixing；After the completion of measuring for the first time, by controlling
System processed setting can certain interval of time repeat second or repeatedly measurement, the desirable average value repeatedly measured is as the survey
The data for section of fixing time are output to display screen or other desired place as the technological parameter of equipment.
6. according to the method described in claim 5, it is characterized by: controlling cone bucket by control system after underflow parametric measurement
The open degree of bottom electrically operated valve realizes the automatic control to its underflow discharge, according to the concentration model of setting thickener underflow discharge
It encloses, when METHOD FOR CONTINUOUS DETERMINATION measured concentration is lower than setting concentration minimum, then valve opening is suitably turned down, until subsequent measurements concentration
In the range of reaching setting；When surveying peak of the concentration higher than setting concentration when METHOD FOR CONTINUOUS DETERMINATION, then opening for big valve is suitably opened
Degree, in the range of subsequent measurements concentration reaches setting；When measurement concentration is adjusted beyond not automatic yet in dense range half an hour
It is whole in place or when underflow occurs blocking and stopping, then sound-light alarm is issued by control system, by manually being handled, processing reaches
Switch to automatic control mode after mark again.
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| CN201910113712.7A CN109596181B (en) | 2019-02-14 | 2019-02-14 | Online continuous weighing type ore pulp multi-parameter measurement and control device and method |
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| CN201910113712.7A CN109596181B (en) | 2019-02-14 | 2019-02-14 | Online continuous weighing type ore pulp multi-parameter measurement and control device and method |
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| CN109596181B CN109596181B (en) | 2023-09-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221087A (en) * | 2019-07-01 | 2019-09-10 | 山东黄金集团有限公司 | A kind of gold mine tailing slurry is automatic to filter dewatering test macro and method |
| CN110631869A (en) * | 2019-10-31 | 2019-12-31 | 昆明理工大学 | Energy dissipation formula ore pulp reposition of redundant personnel sampling device |
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