CN106959606A - Dynamic equalization regulation and control method in concentrate sorting system - Google Patents
Dynamic equalization regulation and control method in concentrate sorting system Download PDFInfo
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
- G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
- G05B13/0205—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric not using a model or a simulator of the controlled system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
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- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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Abstract
Regulate and control method the invention discloses the dynamic equalization in a kind of concentrate sorting system, belong to sorting mineral field, the technical scheme of use is in the production system for including many standard elutriation magnetic separators, there is provided governor circuit and the two grades of supervising devices of sub-control circuit for being matched in unit, and it is equipped with the database and technological parameter regulation and control contrasting data formed in the empirical data based on the long period regulation experiment of unit and statistical basis, on the basis of two grades of fine amendments are realized, it ensure that system energy long-run equilibrium, efficiently, low consumption is run, it not only ensure that concentrate quality, more meet the energy-conservation of environmental protection, efficient theory.
Description
Technical field
The invention belongs to sorting mineral field, and in particular to a kind of dynamic equalization regulation and control method in concentrate sorting system, especially
It is suitable for the industry to carrying out concentrate sorting with ferromagnetic ore.
Background technology
With the large-scale pillar electromagnetism by representative of Full automatic elutriation magnetic separator, the large-scale application of gravitational separation equipment, ore dressing
Production technology and the index of ore dressing achieve breakthrough.Full automatic elutriation magnetic separator uses small PLC system, passes through detection
Pulp density in region is sorted to change to confluent, exciting current（Or magnetic field）, mine tailing discharge capacity and concentrate discharge capacity can carry out essence
Really control.But equipment operational factor " integration " under the conditions of normal doses comes out, when great change occurs for inlet amount,
The mineral quality and the energy selected, environmental protection index are difficult to ensure that.That is, separate unit wash mill can only do Limited Area online
In adjustment, the existing supporting PLC control system of elutriation magnetic separator in face of feed rate be mutated when, or during large change just not
It can guarantee that equipment operation is in optimum state, and can only be forced to adopt manually to correct, ore dressing matter can be also influenceed during arrange parameter
Amount and whole efficiency.
With generally constituting production systems using many elutriation magnetic separators in large-scale Mineral Processing Enterprises, focus on rough concentrate,
Share miberal powder grinding and ore pulp configures equipment, when many elutriation magnetic separators are run simultaneously, due to always to the fluctuation of ore pulp amount, unit
Shunt volume inequality can have a strong impact on the high efficiency of elutriation magnetic separator, high-quality operation, therefore, in face of the big of many elutriation magnetic separators
How type production system, adapt to dynamic equalization regulation and control, it has also become the urgent problem of industry.
The content of the invention
It is an object of the invention to improve the efficiency in ore dressing industrialization production, the office of elutriation magnetic separator auto-control is overcome
It is sex-limited, by means of system entirety and two grades of local control measures of unit, the lifting for realizing production system efficiency, realize to list
The finely regulating of platform elutriation magnetic separator and the regulation and control of the dynamic equalization of whole production system are combined, it is ensured that concentrate quality, are had again
The utilization rate for having played system equipment of effect.
The technical solution adopted by the present invention is that the dynamic equalization in concentrate sorting system regulates and controls method, concentrate sorting system
Include pulp distribution box, the thick liquid discharge mouth of pulp distribution box is connected on elutriation magnetic separator by controlled pulp-expelling valve, ore pulp
The stock inlet of distributor box is connected by controlled slurry-inlet valve with the grinding of prime ore pulp, proportioner, and system support sets system master
The sub-control circuit of circuit and each elutriation magnetic separator, it is critical that dynamic equalization regulation and control method comprises the following steps：
1）Revise empirical parameter：
Ore pulp total flow target M is determined, is repaiied with reference to the history log and existing ore pulp quality parameter of separate unit elutriation magnetic separator
Just its best adjustment handles the regulation and control of technological parameter supporting under flow N, Effective Regulation interval ± △ N, and instant flow Nt
Contrasting data；
2）Set original state and equilibrium state controling parameter：
According to+1 pair of elutriation magnetic separator operation number of units T assignment of T=［ M/N ］, according to flow Nts of the Nt=M/T to every elutriation magnetic separator
Assignment；Set up the standard liquid level H and the corresponding marks of limit control interval ± △ H under balance movement state in pulp distribution box
Number between quasi- pressure value P and the limit control interval ± △ P and separate unit the best adjustment processing flow N, Effective Regulation interval ± △ N
The value correspondence table of comparisons, system enters monitoring running status after the completion of initialization；
3) regulate and control to realize the balance high-efficiency operation of system by two grades：
By the change of the liquid level and instant flow Nt of ore pulp in pressure sensor monitoring pulp distribution box, changing value reaches
Start the adjusting process parametric subroutine in sub-control circuit during the regulation and control order of magnitude in △ N to maintain flow to change lower unit effect
Rate, while statistical system ore pulp total flow instantaneous value Mt；
4）Adjust system balancing ability：
When monitoring and statisticses are arrived | Mt-M | during >=N, assignment M=Mt, returns and performs step 2 again）、3）、4）.
Further, the step 3）Middle adjusting process parametric subroutine step includes：a）According to technological parameter regulation and control pair
According to the technological parameter of data point reuse elutriation magnetic separator, b）Inspection underflow concentrate concentration, flow and technological parameter regulation and control contrasting data
It is compared, c）Deviation then carries out correspondence adjustment, d beyond tolerance band to refill flow and/or exciting current）Repeat
b）、c）Step is until reach within tolerance band.
The step 3）In ore pulp quality parameter include ferromagnetic properties, dry powder proportion, powder size, pulp density, repair
It is positive to establish the standard ore pulp total flow target M that the system is distributed via pulp distribution box.
Regulate and control in above-mentioned technical proposal there is provided a kind of dynamic equalization of concentrate sorting system in method, concentrate sorting system
Sub-control circuit including pulp distribution box, elutriation magnetic separator and supporting governor circuit and each elutriation magnetic separator, ore pulp distribution
The stock inlet of case is ground with ore pulp, proportioner is connected, and stock inlet is provided with check slurry-inlet valve, the bottom of pulp distribution box
Provided with multiple thick liquid discharge mouths, each thick liquid discharge mouth is provided with pulp-expelling valve, and is connected with the entrance of elutriation magnetic separator, slurry-inlet valve and pulp-expelling valve
Be controlled by governor circuit, governor circuit be used to adjusting pulp distribution box dynamic equalization for every elutriation magnetic separator dispensing, each
Sub-control circuit is used to regulate and control the mineral that the exciting current of correspondence elutriation magnetic separator, feedwater flow sort so as to secondary accuracy controlling
Matter, specifically, the regulation and control method of the present invention comprises the following steps：
1）Revision empirical parameter, grinds, dosage pre-determining ore pulp total flow to be processed refers to according to ore pulp before start operation
Mark M, with reference to each elutriation magnetic separator history log and existing ore pulp quality parameter amendment separate unit elutriation magnetic separator most
Good regulation and control processing flow N and Effective Regulation interval ± △ N, and technological parameter regulation and control contrasting data immediately supporting under flow Nt；
Effective Regulation interval ± △ N are to allow separate unit elutriation magnetic separator to handle the scope that flow N fluctuates in the best adjustment, that is, are allowed
The instant flow Nt of separate unit elutriation magnetic separator floats in the range of N- △ N to N+ △ N；Supporting technological parameter regulation and control contrasting data bag
Each quality mineral matching of ferromagnetic properties rule of thumb drawing, different from what is sorted is included, it is right under flow throughout to manage
The exciting current answered, flow of inlet water, and the operating each Testing index of elutriation magnetic separator, such as middle part concentration, underflow concentrate concentration,
Tailings concentration；After above-mentioned parameter revision, i.e., when actual treatment flow is in the range of N ± △ N, without regulating and controlling pulp distribution box
Pulp-expelling valve, contrasting data need to be only regulated and controled with reference to technological parameter and regulates and controls single elutriation magnetic separator to ensure concentrate quality, wherein, it is
Ensure to be divided into multiple regulation and control unit N in the range of concentrate quality, N ± △ Nu, a N is reached when instant flow Nt often deviates Nu, then by
The sub-control circuit of the elutriation magnetic separator carries out corresponding regulation with reference to technological parameter regulation and control contrasting data；
2）Set original state and equilibrium state controling parameter：
The elutriation magnetic separator to be come into operation operation number of units T=［ M/N ］+1, ［ M/N ］ is rounded to M/N result value, according still further to
Nt=M/T is to the flow Nt assignment of every elutriation magnetic separator, and for the balanced dispensing of elutriation magnetic separator put into operation, preliminary guarantee is
The equilibrium of system, Effec-tive Function；Pulp distribution box Plays liquid level H and limit control under setting system balance movement state
Interval ± △ H corresponding reference pressure value P and limit control interval ± △ P and separate unit the best adjustment processing flow N, Effective Regulation
The numerical value correspondence table of comparisons between the ± △ N of interval；Liquid level is to ensure ore pulp point in H ± △ H in control pulp distribution box
The pressure produced to elutriation magnetic separator with case is in P ± △ P, is conducive to the steady Effec-tive Function of system, can not only be effectively ensured point
The concentrate quality of choosing, also helps high efficiency of energy and environmental protection, and effectively protects elutriation magnetic separator；The numerical value correspondence table of comparisons is i.e. in T
When platform elutriation magnetic separator is run, in the range of H ± △ H, the corresponding relation of the flow in the range of P ± △ P and N ± △ N has been initialized
Enter monitoring running status into rear system；
3) regulate and control to realize the balance high-efficiency operation of system by two grades：
Pressure sensor is provided with each thick liquid discharge mouth of pulp distribution box bottom, by monitoring pressure sensor and its average value is calculated
The changes in flow rate of the change of mineral syrup liquid height and dispensing to every elutriation magnetic separator in pulp distribution box can be monitored, works as flow
When change reaches the regulation and control order of magnitude in ± △ N, that is, deviate N and reach a regulation and control unit NuWhen, start the tune in sub-control circuit
Whole technological parameter subprogram with maintain flow change under unit efficiency；Governor circuit is by pulp distribution box stock inlet simultaneously
Mass flow meters statistical system ore pulp total flow instantaneous value Mt；
4）Adjust system balancing ability：
When monitoring and statisticses are arrived | Mt-M | during >=N, assignment M=Mt, returns and performs step 2 again）、3）、4）.
The beneficial effects of the invention are as follows：（1）In the production system for including many standard elutriation magnetic separators, there is provided main
Control circuit and be matched in two grades of supervising devices of sub-control circuit of unit, and be equipped with the experience number based on the long period regulation experiment of unit
Regulate and control contrasting data according to the database and technological parameter formed in statistical basis, to realize two grades of fine amendments, to ensure
Operation establishes reliably technical guarantee in system long-run equilibrium, efficient, low consumption, and the quality of product after ore dressing has been effectively ensured；
（2）The efficiency in ore dressing industrialization production is improved, concentrate quality had both been ensure that, but the effective elutriation magnetic separator that optimizes runs ring
Border, protects system equipment, while at utmost having played the utilization rate of system equipment；（3）Under any circumstance, magnetic separation is eluriated
Machine to ore deposit, feedwater, Pai Weikuang, row concentrate operation all do not need manpower intervention, whole system automatic running；（4）Occur abnormal
During working condition, system is capable of automatic alarm, conveniently informs；（5）It is widely used in the elutriation magnetic separation project of all kinds of large and small scales.
The present invention is described in detail with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the control principle structural representation of the balanced feed proportioning system of the present invention；
Fig. 2 is the structural representation of the balanced feed proportioning system of the present invention；
In accompanying drawing, 1, pulp distribution box, 11, slurry-inlet valve, 12, mass flow meters, 1-1,1-2 ... 1-n, represent be arranged on ore deposit respectively
Starch the thick liquid discharge mouth of distributor box bottom, 1-1-1,1-2-1 ... 1-n-1 represents the pulp-expelling valve being arranged in thick liquid discharge mouth, 2-1,2- respectively
2nd ... 2-n, represent the elutriation magnetic separator of independently working respectively, 211, tailings concentration sensor, 212, middle part concentration sensor,
213rd, concentrate concentration sensor, 214, exciting current adjustment mechanism, 215, feed-regulating valve, 216, feed meter, 217, essence
Ore deposit flow control valve, 3, regulation and controlling of information input/output interface, 4-1,4-2 ... 4-n represents the sub-control electricity of elutriation magnetic separator respectively
Road, 5, main control computer, P1, P2 ... Pn represents the pressure sensor being arranged at thick liquid discharge mouth respectively, C1, C2 ... Cn is represented respectively
Concentration sensor, L1, L2 ... Ln represents flow sensor respectively.
Embodiment
Embodiment 1
The present invention provides a kind of dynamic equalization regulation and control method in concentrate sorting system, based on concentrate sorting system, concentrate sorting
The structure of system includes pulp distribution box 1, elutriation magnetic separator referring to Fig. 2, its control principle referring to Fig. 1, concentrate sorting system
2-1,2-2 ... the sub-control circuit 4-1 of 2-n and supporting governor circuit and each elutriation magnetic separator, 4-2 ... 4-n, ore pulp distribution
The stock inlet of case 1 is ground with ore pulp, proportioner is connected, and stock inlet is provided with slurry-inlet valve 11 and flowmeter 12, for adjusting, in fact
When detection enter system ore pulp total amount；The bottom of pulp distribution box 1 provided with multiple thick liquid discharge mouth 1-1,1-2 ... 1-n, thick liquid discharge mouth
1-1,1-2 ... be respectively equipped with 1-n pressure sensor P1, P2 ... Pn, by counting pressure at each thick liquid discharge mouth and based on
Calculate average value calculate pulp distribution box 1 in ore pulp average pressure P and liquid level, thick liquid discharge mouth 1-1,1-2 ... on 1-n respectively
Provided with pulp-expelling valve 1-1-1,1-2-1 ... 1-n-1 and concentration sensor C1, C2 ... Cn and flow sensor L1, L2 ... Ln, and
Respectively with elutriation magnetic separator 2-1,2-2 ... 2-n entrance is connected, for monitoring mineral slurry flux at each thick liquid discharge mouth in real time and dense
Degree, that is, enter the mineral slurry flux and concentration of each elutriation magnetic separator；Slurry-inlet valve 11 and pulp-expelling valve 1-1-1,1-2-1 ... 1-n-1 by
Control in governor circuit, governor circuit include the main control computer 5 that process matched therewith parameter regulation and control contrasting data memory is set and with
The supporting regulation and controlling of information input/output interface 3 of separation system, governor circuit is every for adjust the dynamic equalization of pulp distribution box 1
Platform elutriation magnetic separator dispensing, each sub-control circuit is used to regulate and control the exciting current of correspondence elutriation magnetic separator, feedwater flow so as to two
The mineral matter of secondary accuracy controlling sorting.It is specific to illustrate the regulation and control method of the present invention with following embodiments to facilitate understanding, including with
Lower step：
1）Revise empirical parameter：
Before start operation, ground according to ore pulp, dosage determines ore pulp total flow target M=1000t/h to be processed, with iron
Ore deposit ore dressing raw ore is the bloodstone of grade 23 ~ 25%, and concentrate grade is required exemplified by 65-66%, and magnetic separation is eluriated from CXJ34000 types
Machine, maximum processing flow Nmax=75t/h, history log and existing ore pulp quality parameter amendment with reference to elutriation magnetic separator
Its best adjustment processing flow N=60 t/h, Effective Regulation interval ± △ N=± 100kg/min, and supporting technological parameter are adjusted
Contrasting data is controlled, wherein, it is dense that technological parameter regulation and control contrasting data includes ore pulp corresponding with head grade and gained concentrate grade
Degree, the aperture of slurry-inlet valve 11, pulp-expelling valve folding quantity, mineral slurry flux, elutriation magnetic separator underflow concentrate concentration, concentrate flow, mine tailing
Concentration, middle part concentration, refill flow, exciting current size, the data of mine tailing effluent concentration, are partly shown in Table 1, in order to the side of regulation and control
Direct, the quick execution of method.
The technological parameter of table 1 regulates and controls contrasting data table
Revise after above-mentioned parameter, when flow is in the range of N ± △ N=60 t/h ± 100kg/min, by the regulation and control pair of sub-control circuit
The separate unit elutriation magnetic separator answered maintains the optimum efficiency and running status of separate unit, in the range of ± △ the N of Effective Regulation interval, to protect
Concentrate grade is demonstrate,proved, N points are multiple regulation and control orders of magnitude, the as shown by data of table 1, when the ore deposit for being actually allocated to separate unit elutriation magnetic separator by △
When starching flow deviation N less than ± 30 kg/min, elutriation magnetic separator operational factor is corrected automatically according to the second row parameter；Work as reality
The numerical value that the mineral slurry flux for distributing to separate unit elutriation magnetic separator deviates N is eluriated in 30 ~ 60kg/min or -30 ~ -60kg/min
Magnetic separator operational factor is corrected automatically according to the third line parameter, by that analogy；
2）Set original state and equilibrium state controling parameter：
According to T=［ M/N ］+1=[1000 t/h/60]+1=17, the elutriation magnetic separator number of units of initial launch is 17, according still further to Nt
=M/T=1000 t/h/17=58.8 t/h, the flow Nt=58.8 t/h of every elutriation magnetic separator, the stream when assignment setting is initial
It is 20kg/min, i.e. △ N=20kg/min that amount, which deviates N, according to the corresponding parameter setting initial state of the first row in table 1；
Operation is to after balance movement state, and △ N the real time measure pressure then in pulp distribution box, liquid level are calculated, technological parameter
Regulation and control contrasting data includes the part such as table 2 below, under conditions of the pulp distribution box 1 of supporting setting, sets up balance movement
Standard liquid level H and the corresponding reference pressure value P of limit control interval ± △ H and the limit in pulp distribution box under state
The corresponding table of comparisons of numerical value between control interval ± △ P and separate unit the best adjustment processing flow N, Effective Regulation interval △ N, part
Such as table 2 below, system enters monitoring running status after the completion of initialization；According to operation number of units and separate unit the best adjustment processing flow N,
Effective Regulation interval △ N are understood, when the ore pulp height h under poised state in pulp distribution box is in the range of H ± △ H, according to P
=ρ gh, reference pressure value P are corresponding average pressure P=0.5MPa, △ P=0.1 MPa, and △ N's is real-time under balance movement state
Measure is regulated and controled according to pressure P and corresponding tables of data.
Pressure value P, changing value △ P and changes in flow rate △ the N corresponding table of comparisons under the balance movement state of table 2
3) regulate and control to realize the balance high-efficiency operation of system by two grades：
By the pressure P of ore pulp in pressure sensor monitoring pulp distribution box, it can reflect that liquid level therein is high according to tables of data
Degree distributes to the change of the flow of separate unit elutriation magnetic separator, and the adjustment work in sub-control circuit is started further according to corresponding changing value
Skill parametric subroutine regulates and controls refill flow and/or exciting current to maintain the list under flow variation according to the empirical data in table 1
Engine efficiency, described adjusting process parametric subroutine step includes：a）Magnetic is eluriated according to technological parameter regulation and control contrasting data adjustment
Select the technological parameter of machine, b）Inspection underflow concentrate concentration, flow and technological parameter regulation and control contrasting data are compared, c）Deviation surpasses
The tolerance band gone out in empirical data table then carries out correspondence adjustment, d to refill flow and/or exciting current）Repeat b）、c）
Step is until reach within tolerance band.While statistical system ore pulp total flow instantaneous value Mt；
4）Adjust system balancing ability：
When monitoring and statisticses are arrived | Mt-M | during >=N, assignment M=Mt, returns and performs step 2 again）、3）、4）, such as Mt=1060t/
During h, then assignment M=1060t/h again, returns and performs step 2）According to T=［ M/N ］+1=[1060 t/h/60]+1=18, Nt=M/
T=1060 t/h/18=58.9 t/h according to above-mentioned monitoring maintain balance, the Effec-tive Function of system in real time simultaneously.
Above-mentioned steps 3）Described in ore pulp quality parameter to include ferromagnetic properties, iron recovery, powder size, ore pulp dense
Degree, the ore pulp total flow target M of the system and the best adjustment processing flow N, the Effective Regulation interval △ N of elutriation magnetic separator are roots
Established according to the concentrate amount to be obtained and the amendment of ore pulp quality parameter.
To ensure to be additionally provided with agitating device in the stability of work operation, the pulp distribution box 1 of concentrate sorting system, it is easy to
Ore pulp it is uniform；For ease of being adjusted into the pulp density of elutriation magnetic separator, the upper and lower of each pulp-expelling valve is additionally provided with back-flushing
Valve；System master circuit includes setting the main control computer 5 of process matched therewith parameter empirical data memory and matched somebody with somebody with separation system
The regulation and controlling of information input/output interface 3 of set, main control computer 5 is used to receive mass flow meters 12 on pulp distribution box 1, each thick liquid discharge mouth
The opening information and pressure sensor P1 of pulp-expelling valve, P2 ... Pn, concentration sensor C1, C2 ... Cn, flow sensor L1,
L2 ... Ln information is simultaneously made comparisons with the process matched therewith parameter empirical data of storage, finally outputs control signals to pulp-expelling valve 1-
1-1,1-2-1 ... 1-n-1, while the mineral slurry flux in each thick liquid discharge mouth, concentration information are transferred into corresponding elutriation magnetic separator point
Control circuit, by the regulation and control of two grades of sub-control circuit realiration, or concentration sensor C1 in each thick liquid discharge mouth, C2 ... Cn and flow are passed
Sensor L1, L2 ... Ln is joined directly together with the sub-control circuit signal input of corresponding elutriation magnetic separator respectively, be easy to secondly level adjust
Control.
With balanced regulation and control method and step 3）The middle supporting setting of adjusting process parametric subroutine, elutriation magnetic separator sub-control circuit
Top tailings concentration on 4-1,4-2 ... 4-n signal input part elutriation magnetic separator 2-1,2-2 ... corresponding with being arranged on, 2-n is passed
Sensor 211, middle part concentration sensor 212, bottom concentrate concentration sensor 213, exciting current detecting device and feed meter
216 connection, signal output part and be correspondingly arranged on elutriation magnetic separator feed-regulating valve 215, concentrate flow regulating valve 217 and
Exciting current adjustment mechanism 214 is connected, and realizes accuracy controlling by the technological parameter regulation and control contrasting data of supporting storage.
Claims (7)
1. the dynamic equalization regulation and control method in concentrate sorting system, concentrate sorting system includes pulp distribution box（1）, ore pulp point
With case（1）Thick liquid discharge mouth（1-1、1-2、…1-n）By controlled pulp-expelling valve（1-1-1、1-2-1、…1-n-1）It is naughty to be connected to
Wash magnetic separator（2-1、2-2、…、2-n ）On, pulp distribution box（1）Stock inlet by controlled slurry-inlet valve（11）With prime ore pulp
Grinding, proportioner connection, system support set the sub-control circuit of system master circuit and each elutriation magnetic separator（4-1、4-
2、…4-n）, it is characterised in that the dynamic equalization regulation and control method comprises the following steps：
1）Revise empirical parameter：
Ore pulp total flow target M is determined, is repaiied with reference to the history log and existing ore pulp quality parameter of separate unit elutriation magnetic separator
Just its best adjustment processing flow N, Effective Regulation interval ± △ N, and technological parameter regulation and control pair immediately supporting under flow Nt
According to data；
2）Set original state and equilibrium state controling parameter：
According to+1 pair of elutriation magnetic separator operation number of units T assignment of T=［ M/N ］, according to flow Nts of the Nt=M/T to every elutriation magnetic separator
Assignment；Set up pulp distribution box under balance movement state（1）In standard liquid level H it is corresponding with limit control interval ± △ H
Reference pressure value P and limit control interval ± △ P and separate unit the best adjustment processing flow N, Effective Regulation interval ± △ N between
Numerical value correspondence the table of comparisons, after the completion of initialization system enter monitoring running status；
3) regulate and control to realize the balance high-efficiency operation of system by two grades：
By pressure sensor monitoring pulp distribution box（1）The change of the liquid level of middle ore pulp and instant flow Nt, changing value
Start sub-control circuit when reaching the regulation and control order of magnitude in △ N（4-1、4-2…4-n）In adjusting process parametric subroutine to maintain
Unit efficiency under flow variation, while statistical system ore pulp total flow instantaneous value Mt；
4）Adjust system balancing ability：
When monitoring and statisticses are arrived | Mt-M | during >=N, assignment M=Mt, returns and performs step 2 again）、3）、4）.
2. the dynamic equalization regulation and control method according to described in claim 1, it is characterised in that the step 3）Middle adjusting process parameter
Subroutine procedure includes：a）Regulate and control the technological parameter that contrasting data adjusts elutriation magnetic separator, b according to technological parameter）Inspection underflow
Concentrate concentration, flow and technological parameter regulation and control contrasting data are compared, c）Deviation beyond tolerance band then to refill flow and/
Or exciting current carries out correspondence adjustment, d）Repeat b）、c）Step is until reach within tolerance band.
3. the dynamic equalization regulation and control method according to described in claim 1, it is characterised in that the step 3）In ore pulp quality ginseng
Number includes ferromagnetic properties, dry powder proportion, powder size, pulp density, and amendment establishes the system via pulp distribution box（1）Distribution
Standard ore pulp total flow target M.
4. dynamic equalization according to claim 1 regulates and controls method, it is characterised in that the technological parameter regulates and controls contrasting data
Including pulp density corresponding with head grade and gained concentrate grade, slurry-inlet valve（11）Aperture, pulp-expelling valve folding quantity, ore pulp
Flow, elutriation magnetic separator underflow concentrate concentration, concentrate flow, refill flow, exciting current size, the number of mine tailing effluent concentration
According to.
5. dynamic equalization according to claim 1 regulates and controls method, it is characterised in that the governor circuit includes setting and matched somebody with somebody
Cover the main control computer of technological parameter empirical data memory（5）With the regulation and controlling of information input/output interface supporting with separation system
（3）.
6. dynamic equalization regulation and control method is automated in a kind of concentrate sorting according to claim 5, it is characterised in that described
Regulation and controlling of information input/output interface（3）Signal input part and be arranged on pulp distribution box（1）Bottom thick liquid discharge mouth（1-1、1-2、…
1-n）The pressure sensor at place（P1、P2、…Pn）, flow sensor（L1、L2、…Ln）And pulp distribution box（1）Stock inlet
The mass flow meters at place（12）Connection, signal output part is with being arranged on each thick liquid discharge mouth（1-1、1-2、…1-n）Pulp-expelling valve（1-1-1、
1-2-1、…1-n-1）Connection.
7. dynamic equalization regulation and control method is automated in a kind of concentrate sorting according to claim 1, it is characterised in that：It is described
Elutriation magnetic separator sub-control circuit（4-1、4-2、…4-n）Signal input part elutriation magnetic separator corresponding with being arranged on（2-1、2-
2、…2-n）On top tailings concentration sensor（211）, middle part concentration sensor（212）, bottom concentrate concentration sensor
（213）, exciting current detecting device and feed meter（216）Connection, signal output part is with being correspondingly arranged at elutriation magnetic separator
On feed-regulating valve（215）, concentrate flow regulating valve（217）And exciting current adjustment mechanism（214）Connection.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010551.5A CN106959606B (en) | 2016-01-08 | 2016-01-08 | Dynamic equalization in concentrate sorting system regulates and controls method |
| AU2016204367A AU2016204367A1 (en) | 2016-01-08 | 2016-06-24 | Concentrate sorting system with automatic dynamic equilibrium |
| AU2016204415A AU2016204415B2 (en) | 2016-01-08 | 2016-06-27 | The regulation method of dynamic equilibrium in the concentrate sorting system |
| AU2022256228A AU2022256228A1 (en) | 2016-01-08 | 2022-10-21 | Concentrate Sorting System With Automatic Dynamic Equilibrium |
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