CN106959606B - Dynamic equalization in concentrate sorting system regulates and controls method - Google Patents
Dynamic equalization in concentrate sorting system regulates and controls method Download PDFInfo
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- CN106959606B CN106959606B CN201610010551.5A CN201610010551A CN106959606B CN 106959606 B CN106959606 B CN 106959606B CN 201610010551 A CN201610010551 A CN 201610010551A CN 106959606 B CN106959606 B CN 106959606B
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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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Abstract
The invention discloses the dynamic equalizations in a kind of concentrate sorting system to regulate and control method, belong to sorting mineral field, the technical solution adopted is that in the production system for including more standard elutriation magnetic separators, provided with governor circuit and the sub-control circuit second level monitoring device for being matched in single machine, and it is equipped in the empirical data and statistical basis based on the long period regulation test of single machine and is formed by database and technological parameter regulation contrasting data, realize second level it is fine modified on the basis of, it ensure that system energy long-run equilibrium, efficiently, low consumption operation, 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 fields, and in particular to and the dynamic equalization in a kind of concentrate sorting system regulates and controls method,
Particularly suitable for the industry for carrying out concentrate sorting with ferromagnetic ore.
Background technique
With using Full automatic elutriation magnetic separator as the large-scale application of the large-scale pillar electromagnetism of representative, 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
Essence can be carried out to confluent, exciting current (or magnetic field), tailing discharge capacity and concentrate discharge capacity by sorting pulp density variation in region
Really control.However equipment operating parameter is that " integration " comes out under the conditions of normal doses, when great change occurs for inlet amount,
Mineral quality and the energy, the environmental protection index selected are difficult to ensure.That is, separate unit wash mill can only do Limited Area online
In adjustment, when the existing mating PLC control system of elutriation magnetic separator is mutated in face of feed rate, or when large change just not
It can guarantee that equipment operation is in optimum state, and can only be forced to adopt and manually correct, also will affect ore dressing matter when parameter is set
Amount and whole efficiency.
As generally more elutriation magnetic separators of use form production systems, centralized processing rough concentrates in large-scale Mineral Processing Enterprises,
It shares miberal powder grinding and ore pulp configures equipment, when more elutriation magnetic separators are run simultaneously, due to always to the fluctuation of ore pulp amount, single machine
Shunt volume unevenness can seriously affect the high efficiency of elutriation magnetic separator, high-quality operation, therefore, in face of the big of more elutriation magnetic separators
How type production system adapts to dynamic equalization regulation, it has also become the urgent project of industry.
Summary 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 the whole promotion with the second level control measures, realization production system efficiency of single machine part of system, realize to list
The finely regulating of platform elutriation magnetic separator and the regulation of the dynamic equalization of entire production system combine, and ensure that concentrate quality, and have
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
In 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 connect by controlled slurry-inlet valve with the grinding of prime ore pulp, proportioner, and system master is arranged in system support
The sub-control circuit of circuit and each elutriation magnetic separator, it is critical that the dynamic equalization regulation method the following steps are included:
1) empirical parameter is revised:
Ore pulp total flow target M is determined, referring to the history log of separate unit elutriation magnetic separator and existing ore pulp quality ginseng
Its best adjustment of number amendment handles flow N, Effective Regulation section ± △ N, and matched technological parameter under flow Nt immediately
Regulate and control contrasting data；
2) original state and equilibrium state controling parameter are set:
Number of units T assignment is run according to T=+ 1 couple of [ M/N ] elutriation magnetic separator, according to Nt=M/T to the stream of every elutriation magnetic separator
Measure Nt assignment；Standard liquid level H and limit control interval ± △ H under balance movement state in pulp distribution box is set up to correspond to
Reference pressure value P and limit control interval ± △ P and separate unit the best adjustment processing flow N, between the ± △ N of Effective Regulation section
Numerical value correspond to the table of comparisons, system enters monitoring operating status after the completion of initialization；
3) by the balance high-efficiency operation of second level regulation realization system:
By the variation of the liquid level and instant flow Nt of ore pulp in pressure sensor monitoring pulp distribution box, changing value
Start the adjusting process parametric subroutine in sub-control circuit when reaching the regulation order of magnitude in △ N to maintain the list under flow variation
Engine efficiency, while statistical system ore pulp total flow instantaneous value Mt；
4) system balancing ability is adjusted:
When monitoring and statistics arrive | Mt-M | when >=N, again 2), 3), 4) assignment M=Mt, is returned to step.
Further, adjusting process parametric subroutine step includes: a) according to technological parameter regulation pair in the step 3)
According to the technological parameter of data point reuse elutriation magnetic separator, b) inspection underflow concentrate concentration, flow and technological parameter regulation contrasting data
It is compared, c) deviation beyond tolerance band then carries out corresponding adjustment, d to refill flow and/or exciting current) repeat
B), c) step until reach within tolerance band.
Ore pulp quality parameter in the step 1) includes ferromagnetic properties, dry powder specific gravity, powder size, pulp density, is repaired
The positive standard ore pulp total flow target M for establishing this system and being distributed via pulp distribution box.
In above-mentioned technical proposal, a kind of dynamic equalization regulation method of concentrate sorting system is provided, in concentrate sorting system
Sub-control circuit including pulp distribution box, elutriation magnetic separator and matched governor circuit and each elutriation magnetic separator, ore pulp distribution
The stock inlet of case is ground with ore pulp, proportioner is connect, and stock inlet is equipped with controlled slurry-inlet valve, the bottom of pulp distribution box
Equipped with multiple thick liquid discharge mouths, each thick liquid discharge mouth is equipped with pulp-expelling valve, and connect with the entrance of elutriation magnetic separator, slurry-inlet valve and pulp-expelling valve
It is controlled by governor circuit, governor circuit is every elutriation magnetic separator ingredient for adjusting pulp distribution box dynamic equalization, each
Sub-control circuit is for regulating and controlling exciting current, the feedwater flow of corresponding elutriation magnetic separator to the mineral of secondary accuracy controlling sorting
Matter, specifically, regulation method of the invention the following steps are included:
1) empirical parameter is revised before booting is run, is always flowed according to ore pulp grinding, dosage pre-determining ore pulp to be processed
Figureofmerit M corrects separate unit elutriation magnetic separator referring to the history log of each elutriation magnetic separator and existing ore pulp quality parameter
The best adjustment handle flow N and Effective Regulation section ± △ N, and matched technological parameter regulation control number under flow Nt immediately
According to；Effective Regulation section ± △ N is that separate unit elutriation magnetic separator is allowed to handle the range that flow N floats up and down in the best adjustment, i.e.,
The instant flow Nt of separate unit elutriation magnetic separator is allowed to float within the scope of N- △ N to N+ △ N；Matched technological parameter regulation control number
According to include rule of thumb obtain, each quality mineral of different ferromagnetic properties are matched from what is sorted, throughout manage flow
Under corresponding exciting current, flow of inlet water and the running 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 within the scope of N ± △ N, without regulating and controlling ore pulp point
Pulp-expelling valve with case only need to regulate and control contrasting data referring to technological parameter and regulate and control single elutriation magnetic separator to guarantee concentrate quality,
Wherein, to guarantee concentrate quality, it is divided into multiple regulation unit N within the scope of N ± △ Nu, when the every deviation N of instant flow Nt reaches one
A Nu, then corresponding adjusting is carried out referring to technological parameter regulation contrasting data by the sub-control circuit of the elutriation magnetic separator；
2) original state and equilibrium state controling parameter are set:
The elutriation magnetic separator to be come into operation operation number of units T=[ M/N ]+1, [ M/N ] is rounded the result value of M/N, then
It is preliminary to protect for the elutriation magnetic separator equilibrium ingredient to put into operation according to Nt=M/T to the flow Nt assignment of every elutriation magnetic separator
The equilibrium of card system, efficient operation；Pulp distribution box Plays liquid level H and the limit under setting system balance movement state
Control interval ± △ H corresponding reference pressure value P and limit control interval ± △ P and separate unit the best adjustment processing flow N, effectively
Numerical value between regulation section ± △ N corresponds to the table of comparisons；Liquid level is in H ± △ H i.e. guarantee mine in control pulp distribution box
Slurry distributor box is in P ± △ P to the pressure that elutriation magnetic separator generates, and is conducive to the steady efficient operation of system, can not only effectively protect
The concentrate quality for demonstrate,proving sorting, also helps high efficiency of energy and environmental protection, and effective protection elutriation magnetic separator；Numerical value corresponds to the table of comparisons i.e.
In the operation of catwalk elutriation magnetic separator, within the scope of H ± △ H, the corresponding relationship of P ± △ P and the flow within the scope of N ± △ N, initially
System enters monitoring operating status after the completion of change；
3) by the balance high-efficiency operation of second level regulation realization system:
Pressure sensor is equipped at each thick liquid discharge mouth of pulp distribution box bottom, it is flat by monitoring pressure sensor and calculating it
Mean value can monitor the variation of mineral syrup liquid height and ingredient in pulp distribution box to the changes in flow rate of every elutriation magnetic separator, when
When changes in flow rate reaches the regulation order of magnitude in ± △ N, i.e. deviation N reaches a regulation unit NuWhen, start in sub-control circuit
Adjusting process parametric subroutine with maintain flow change under single machine efficiency；Governor circuit is by pulp distribution box into slurry simultaneously
The mass flow meters statistical system ore pulp total flow instantaneous value Mt of mouth；
4) system balancing ability is adjusted:
When monitoring and statistics arrive | Mt-M | when >=N, again 2), 3), 4) assignment M=Mt, is returned to step.
The beneficial effects of the present invention are: (1) in the production system for including more standard elutriation magnetic separators, is provided with master
It controls circuit and is matched in the sub-control circuit second level monitoring device of single machine, and be equipped with the experience number based on the long period regulation test of single machine
According to be formed by statistical basis database and technological parameter regulation contrasting data, for realize second level finely correct, for guarantee
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) efficiency in ore dressing industrialization production is improved, not only ensure that concentrate quality, but also effectively optimizes elutriation magnetic separator operation ring
Border protects system equipment, while utmostly having played the utilization rate of system equipment；(3) under any circumstance, magnetic separation is eluriated
Machine does not all need manpower intervention, whole system automatic running to mine, water supply, row's tailing, the operation of sperm drainage mine；(4) occur abnormal
When working condition, system is capable of automatic alarm, facilitates informing；(5) it is widely used in the elutriation magnetic separation project of all kinds of large and small scales.
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
Detailed description of the invention
Fig. 1 is the control principle structural schematic diagram of balanced feed proportioning system of the invention；
Fig. 2 is the structural schematic diagram of balanced feed proportioning system of the invention；
In attached drawing, 1, pulp distribution box, 11, slurry-inlet valve, 12, mass flow meters, 1-1,1-2 ... 1-n, respectively represent setting
Thick liquid discharge mouth in pulp distribution box bottom, 1-1-1,1-2-1 ... 1-n-1 respectively represents the pulp-expelling valve being arranged in thick liquid discharge mouth, 2-
1,2-2 ... 2-n, the elutriation magnetic separator for respectively representing independently working, 211, tailings concentration sensor, 212, middle part concentration sensing
Device, 213, concentrate concentration sensor, 214, exciting current adjustment mechanism, 215, feed-regulating valve, 216, feed meter, 217,
Concentrate flow regulating valve, 3, regulation and controlling of information input/output interface, 4-1,4-2 ... 4-n respectively represents the sub-control electricity of elutriation magnetic separator
Road, 5, main control computer, P1, P2 ... Pn respectively represents the pressure sensor being arranged at thick liquid discharge mouth, C1, C2 ... Cn is respectively represented
Concentration sensor, L1, L2 ... Ln respectively represents flow sensor.
Specific embodiment
Embodiment 1
The present invention provides a kind of dynamic equalization regulation method in concentrate sorting system, is based on concentrate sorting system, concentrate
Referring to fig. 2, control principle includes pulp distribution box 1 in concentrate sorting system, eluriates magnetic referring to Fig. 1 the structure of separation system
Select machine 2-1,2-2 ... sub-control circuit 4-1,4-2 of 2-n and matched governor circuit and each elutriation magnetic separator ... 4-n, ore pulp
The stock inlet of distributor box 1 is ground with ore pulp, proportioner is connect, and stock inlet is equipped with slurry-inlet valve 11 and flowmeter 12, for adjusting
Section, real-time detection enter the ore pulp total amount of system；The bottom of pulp distribution box 1 be equipped with multiple thick liquid discharge mouth 1-1,1-2 ... 1-n, row
Slurry mouth 1-1,1-2 ... be respectively equipped at 1-n pressure sensor P1, P2 ... Pn, for counting the pressure at each thick liquid discharge mouth and leading to
It crosses and calculates average pressure P and liquid level that average value calculates ore pulp in pulp distribution box 1, thick liquid discharge mouth 1-1,1-2 ... on 1-n
Be respectively equipped 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 ... the entrance of 2-n is connect, for the mineral slurry flux at each thick liquid discharge mouth of real-time monitoring
And concentration, 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 is controlled by governor circuit, includes the main control computer 5 that setting process matched therewith parameter regulates and controls contrasting data memory in governor circuit
With regulation and controlling of information input/output interface 3 matched with separation system, governor circuit is for adjusting 1 dynamic equalization of pulp distribution box
For every elutriation magnetic separator ingredient, each sub-control circuit for regulate and control the exciting current of corresponding elutriation magnetic separator, feedwater flow from
And the minerals of secondary accuracy controlling sorting.Specifically illustrate regulation method of the invention with following embodiments to facilitate and understand, wraps
Include following steps:
1) empirical parameter is revised:
Before booting operation, ore pulp total flow target M=1000t/h to be processed is determined according to ore pulp grinding, dosage,
Using iron ore beneficiation raw ore as the bloodstone of grade 23 ~ 25%, for concentrate grade requires 65-66%, CXJ34000 type is selected to eluriate
Magnetic separator, maximum processing flow Nmax=75t/h, referring to the history log and existing ore pulp quality parameter of elutriation magnetic separator
Correct its best adjustment processing t/h of flow N=60, Effective Regulation section ± △ N=± 100kg/min and matched technique ginseng
Number regulation contrasting data, wherein it includes mine corresponding with head grade and gained concentrate grade that technological parameter, which regulates and controls contrasting data,
Starch concentration, 11 aperture of slurry-inlet valve, pulp-expelling valve folding quantity, mineral slurry flux, elutriation magnetic separator underflow concentrate concentration, concentrate flow,
Tailings concentration, middle part concentration, refill flow, exciting current size, the data of tailing effluent concentration, are shown in Table 1, partially in order to adjust
Direct, the quick execution of prosecutor method.
1 technological parameter of table regulates and controls contrasting data table
After revising above-mentioned parameter, when flow is within the scope of N ± △ N=60 t/h ± 100kg/min, by sub-control circuit tune
Optimum efficiency and operating status that corresponding separate unit elutriation magnetic separator maintains separate unit are controlled, within the scope of ± △ the N of Effective Regulation section,
To guarantee concentrate grade, △ N is divided for multiple regulation orders of magnitude, table 1 statistics indicate that, when being actually allocated to separate unit elutriation magnetic separator
Mineral slurry flux deviate N be less than ± 30 kg/min when, elutriation magnetic separator operating parameter is corrected automatically according to the second row parameter；When
The numerical value of mineral slurry flux deviation N of separate unit elutriation magnetic separator is actually allocated in 30 ~ 60kg/min or -30 ~ -60kg/min,
Elutriation magnetic separator operating parameter is corrected automatically according to the third line parameter, and so on；
2) original state and equilibrium state controling parameter are set:
According to T=[ M/N ]+1=[1000 t/h/60]+1=17, the elutriation magnetic separator number of units of initial launch is 17, then is pressed
According to NtT/h/17=M/T=1000=58.8 t/h, the t/h of flow Nt=58.8 of every elutriation magnetic separator when assignment sets initial,
It is 20kg/min, i.e. △ N=20kg/min that the flow, which deviates N, is according to the corresponding parameter setting initial state of the first row in table 1
It can；After operation to balance movement state, the real time measure of △ N is then calculated according to pressure, the liquid level in pulp distribution box, technique ginseng
Include part such as the following table 2 in number regulation contrasting datas, under conditions of pulp distribution box 1 of mating setting, sets up balance fortune
Standard liquid level H and the corresponding reference pressure value P of limit control interval ± △ H and pole in pulp distribution box under row state
Limit control interval ± △ P and the corresponding table of comparisons of separate unit the best adjustment processing flow N, the numerical value between the △ N of Effective Regulation section, portion
Divide such as the following table 2, system enters monitoring operating status after the completion of initialization；Flow is handled according to operation number of units and separate unit the best adjustment
N, △ N in Effective Regulation section is it is found that when the ore pulp height h under equilibrium state in pulp distribution box is within the scope of H ± △ H, root
According to P=ρ gh, reference pressure value P, that is, corresponding average pressure P=0.5MPa, the △ MPa of P=0.1, the reality of △ N under balance movement state
When measurement regulated and controled according to pressure P and corresponding tables of data.
The corresponding table of comparisons of pressure value P under 2 balance movement state of table, changing value △ P and changes in flow rate △ N
3) by the balance high-efficiency operation of second level regulation realization system:
By the pressure P of ore pulp in pressure sensor monitoring pulp distribution box, liquid therein can be reflected according to tables of data
Face height is to distribute to the variation of the flow of separate unit elutriation magnetic separator, further according to the tune in corresponding changing value starting sub-control circuit
Under whole technological parameter subprogram regulates and controls refill flow and/or exciting current according to the empirical data in table 1 to maintain flow to change
Single machine efficiency, the adjusting process parametric subroutine step include: a) according to technological parameter regulation contrasting data adjustment wash in a pan
Wash the technological parameter of magnetic separator, b) inspection underflow concentrate concentration, flow and technological parameter regulation contrasting data be compared, c) partially
Difference then carries out corresponding adjustment, d to refill flow and/or exciting current beyond the tolerance band in empirical data table) it repeats
B), c) step until reach within tolerance band.Statistical system ore pulp total flow instantaneous value Mt simultaneously；
4) system balancing ability is adjusted:
When monitoring and statistics arrive | Mt-M | when >=N, again 2), 3), 4) assignment M=Mt, is returned to step, such as Mt=
When 1060t/h, then assignment M=1060t/h again, return to step 2) according to T=[ M/N ]+1=[1060 t/h/60]+1=
T/h/18 18, Nt=M/T=1060=58.9 t/h carry out the balance, the efficient fortune that maintain system in real time according to above-mentioned monitoring simultaneously
Row.
Above-mentioned steps 1) described in ore pulp quality parameter include that ferromagnetic properties, iron recovery, powder size, ore pulp are dense
Degree, the ore pulp total flow target M of this system and the best adjustment processing flow N, the Effective Regulation section △ N of elutriation magnetic separator are roots
According to the concentrate amount and ore pulp quality parameter to be obtained amendment establishment.
For the stability for guaranteeing work operation, agitating device is additionally provided in the pulp distribution box 1 of concentrate sorting system, is convenient for
Ore pulp it is uniform；To be conveniently adjusted the pulp density for entering elutriation magnetic separator, the upper and lower of each pulp-expelling valve is additionally provided with back-flushing
Valve；It include that the main control computer 5 of process matched therewith parameter empirical data memory is set and is matched with separation system in system master circuit
The regulation and controlling of information input/output interface 3 of set, main control computer 5 is for receiving mass flow meters 12 on pulp distribution box 1, each thick liquid discharge mouth
The opening information and pressure sensor P1, P2 of pulp-expelling valve ... Pn, concentration sensor C1, C2 ... Cn, flow sensor L1,
L2 ... the information of Ln is simultaneously made comparisons with the process matched therewith parameter empirical data of storage, and pulp-expelling valve 1- is finally output control signals to
1-1,1-2-1 ... 1-n-1, while mineral slurry flux, the concentration information in each thick liquid discharge mouth are transferred to corresponding elutriation magnetic separator point
Control circuit, realized by sub-control circuit concentration sensor C1, C2 in second level regulation or each thick liquid discharge mouth ... Cn and flow pass
Sensor L1, L2 ... Ln is connected directly with the sub-control circuit signal input of corresponding elutriation magnetic separator respectively, is convenient for its second level tune
Control.
With balanced regulation method and step 3) in the mating setting of adjusting process parametric subroutine, elutriation magnetic separator sub-control circuit
The signal input part of 4-1,4-2 ... 4-n are passed with the top tailings concentration being arranged on corresponding elutriation magnetic separator 2-1,2-2 ..., 2-n
Sensor 211, middle part concentration sensor 212, bottom concentrate concentration sensor 213, exciting current detecting device and feed meter
216 connection, signal output end be correspondingly arranged on elutriation magnetic separator feed-regulating valve 215, concentrate flow regulating valve 217 and
Exciting current adjustment mechanism 214 connects, and realizes accuracy controlling by the technological parameter of mating storage regulation contrasting data.
Claims (7)
- It include pulp distribution box (1), ore pulp point in concentrate sorting system 1. the dynamic equalization in concentrate sorting system regulates and controls method It is naughty that thick liquid discharge mouth (1-1,1-2 ... 1-n) with case (1) is connected to by controlled pulp-expelling valve (1-1-1,1-2-1 ... 1-n-1) It washes on magnetic separator (2-1,2-2 ..., 2-n), the stock inlet of pulp distribution box (1) is by controlled slurry-inlet valve (11) and prime ore pulp Sub-control circuit (4-1,4- of system master circuit and each elutriation magnetic separator is arranged in grinding, proportioner connection, system support 2 ... 4-n), which is characterized in that dynamic equalization regulation method the following steps are included:1) empirical parameter is revised:It determines ore pulp total flow target M, is repaired referring to the history log of separate unit elutriation magnetic separator and existing ore pulp quality parameter Just its best adjustment handles flow N, Effective Regulation section ± △ N, and matched technological parameter regulation pair under flow Nt immediately According to data；2) original state and equilibrium state controling parameter are set:Number of units T assignment is run according to T=+ 1 couple of [ M/N ] elutriation magnetic separator, according to Nt=M/T to the flow Nt of every elutriation magnetic separator Assignment；Standard liquid level H and limit control interval ± △ H under balance movement state in pulp distribution box (1) is set up to correspond to Reference pressure value P and limit control interval ± △ P and separate unit the best adjustment processing flow N, between the ± △ N of Effective Regulation section Numerical value correspond to the table of comparisons, system enters monitoring operating status after the completion of initialization；3) by the balance high-efficiency operation of second level regulation realization system:By the variation of the liquid level and instant flow Nt of ore pulp in pressure sensor monitoring pulp distribution box (1), changing value Adjusting process parametric subroutine when reaching the regulation order of magnitude in △ N in starting sub-control circuit (4-1,4-2 ... 4-n) is to maintain Single machine efficiency under flow variation, while statistical system ore pulp total flow instantaneous value Mt；4) system balancing ability is adjusted:When monitoring and statistics arrive | Mt-M | when >=N, again 2), 3), 4) assignment M=Mt, is returned to step.
- 2. dynamic equalization according to claim 1 regulates and controls method, it is characterised in that adjusting process parameter in the step 3) Subroutine procedure includes: a) according to the technological parameter of technological parameter regulation contrasting data adjustment elutriation magnetic separator, b) inspection underflow Concentrate concentration, flow and technological parameter regulation contrasting data are compared, c) deviation beyond tolerance band then to refill flow and/ Or exciting current carries out corresponding adjustment, d) repeat b), c) that step is until reach within tolerance band.
- 3. dynamic equalization according to claim 1 regulates and controls method, it is characterised in that the ore pulp quality ginseng in the step 1) Number includes ferromagnetic properties, dry powder specific gravity, powder size, pulp density, corrects and establishes this 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, which is characterized in that the technological parameter regulates and controls contrasting data Quantity, ore pulp are opened and closed including pulp density corresponding with head grade and gained concentrate grade, slurry-inlet valve (11) aperture, pulp-expelling valve Flow, elutriation magnetic separator underflow concentrate concentration, concentrate flow, refill flow, exciting current size, tailing effluent concentration number According to.
- 5. dynamic equalization according to claim 1 regulates and controls method, which is characterized in that include that setting is matched in the governor circuit Cover the main control computer (5) and regulation and controlling of information input/output interface matched with separation system of technological parameter empirical data memory (3).
- 6. dynamic equalization according to claim 5 regulates and controls method, which is characterized in that the regulation and controlling of information input/output interface (3) pressure sensor of signal input part and setting at pulp distribution box (1) bottom thick liquid discharge mouth (1-1,1-2 ... 1-n) Mass flow meters (12) at (P1, P2 ... Pn), flow sensor (L1, L2 ... Ln) and pulp distribution box (1) stock inlet are even Connect, signal output end and setting each thick liquid discharge mouth (1-1,1-2 ... 1-n) pulp-expelling valve (1-1-1,1-2-1 ... 1-n-1) even It connects.
- 7. dynamic equalization according to claim 1 regulates and controls method, it is characterised in that: the elutriation magnetic separator sub-control circuit The top tailing of the signal input part of (4-1,4-2 ... 4-n) and setting on corresponding elutriation magnetic separator (2-1,2-2 ... 2-n) Concentration sensor (211), middle part concentration sensor (212), bottom concentrate concentration sensor (213), exciting current detecting device And feed meter (216) connection, signal output end and the feed-regulating valve (215) being correspondingly arranged on elutriation magnetic separator, essence Mine flow control 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 |
Applications Claiming Priority (1)
| 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 |
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| Publication Number | Publication Date |
|---|---|
| CN106959606A CN106959606A (en) | 2017-07-18 |
| CN106959606B true CN106959606B (en) | 2019-11-12 |
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