AU2016204415A1 - The regulation method of dynamic equilibrium in the concentrate sorting system - Google Patents
The regulation method of dynamic equilibrium in the concentrate sorting system Download PDFInfo
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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
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Abstract
The present invention seeks to improve the efficiency of the industrialized production of the mineral sorting, overcoming limitations of the automatic regulation of the magnetic elution column with the help of secondary regulation means of the overall system and the local single unit to realize the efficiency of the production systems to achieve the combination of the precise regulation of a single magnetic elution column and the regulation of dynamic equilibrium of the whole production system, to ensure the concentrate quality, and at the same time effectively developing the utilization rate of the equipment of the system. -- ---- .. -- ---- -- -- -- - - --- --- --- -- IAIt * ---------- ------------- ------- -- - -- - - - -- - - - - - - - - - - - -- -- - - - - -- --- Figure 1
Description
1 2016204415 27 Jun2016
THE REGULATION METHOD OF DYNAMIC EQUILIBRIUM IN THE CONCENTRATE
SORTING SYSTEM
Technical Field [0001] The present invention generally relates to the regulation method in a concentrate mining sorting system.
Background Art [0002] Reference to cited material or information contained in the text should not be understood as a concession that the material or information was part of the common general knowledge or was known in Australia or any other country.
[0003] With the wide spread usage of large column type electromagnetic and resorting equipment such as the fully automatic magnetic elution column, the production process of mineral sorting and the indicators of the mineral sorting have made breakthrough progress. Known fully automatic magnetic elution columns use small PLC systems to be able to carry out precise control on the water supplying quantity, the excitation current (or magnetic field), the tailings discharging quantity and the concentrate discharging quantity by detecting the change of the pulp concentration in the sorting area. However, the operating parameters of the equipment are “integrated” under the conditions of normal material quantity, when the material feeding quantity significantly changes, it is difficult to ensure the quality of the sorted minerals and the indicators of the energy and the environmental protection. That is to say, a single Magnetic Elution Column on the production line can only carry out the adjustment in a limit interval, the supporting PLC control system of currently existing Magnetic Elution Columns could not ensure the operation of the equipment effectively when faced with a sudden change or significant change of the material feeding quantity, and can only be forced to adopt the manual amendment, and will also affect the mineral sorting quality and the overall efficiency when setting the parameters.
[0004] Large-scale mineral sorting companies commonly use several magnetic elution columns to form a production system to centrally process the coarse ore and the concentrate, the ore powder grinding and pulp distribution devices. When several magnetic elution columns simultaneously operate, due to the fluctuation of the total pulp feeding, the unevenness of the material distribution quantity of a single unit will 2 2016204415 27 Jun2016 seriously affect the efficiency and operation of the magnetic elution columns, therefore, faced with the large-scale production system of multiple magnetic elution columns, how to adapt to the regulation of dynamic equilibrium has become an urgent problem for the industry.
Summary of the Invention [0005] The present invention seeks to improve the efficiency of the industrialised production of the mineral sorting, overcoming limitations of the automatic regulation of the magnetic elution column with the help of secondary regulation means of the overall system and the local single unit to realize the efficiency of the production systems to achieve the combination of the precise regulation of a single magnetic elution column and the regulation of dynamic equilibrium of the whole production system, to ensure the concentrate quality, and at the same time effectively developing the utilization rate of the equipment of the system.
[0006] In a first embodiment, the present invention provides a regulation method of dynamic equilibrium in a concentrate sorting system, the concentrate sorting system including: at least one Magnetic Elution Column; a pulp distribution box with at least one ore discharging port and a pulp inlet connected to a pulp grinder; the at least one ore discharge port being connected to a Magnetic Elution Column via an ore discharging valve; an ingredients mixing device connected to a controlled ore supplying valve; wherein the system further includes a main control circuit and a at least one local control circuit for each Magnetic Elution Column; and wherein the at least one Magnetic Elution Column regulating dynamic equilibrium through at least the following steps: (i) determining an index of the system’s total handling capacity of pulp, determining a best handling capacity, an effective control range, and comparing data of process parameters relating to an instant quantity by referring to historical operation records of the at least one Magnetic Elution Column and current pulp quality parameters; (ii) assigning to an operating unit of the at least one Magnetic Elution Column according to T=INT (M/N) +1 and assigning a handling 3 2016204415 27 Jun2016 capacity N of the at least one Magnetic Elution Column according to N=M/T, setting a corresponding best regulation handling material quantity N of single unit of the feeding quantity MT of the pulp distribution box and the limit control interval ±ΔΜ, the corresponding table of comparisons of the values between the effective control range ±ΔΝ under the equilibrium operation status, after the completion of the initialization the system enters into the monitoring operation status; (iii) monitoring the change of the instant value Mt of the total quantity of pulp of the feeding pulp distribution box and/or the pulp quantity Nt of the Magnetic Elution Column, when the value of change reaches the regulation magnitude in ΔΝ, start up the sub-program of the parameters of the regulation process in the local control circuit in order to maintain the efficiency of single unit under the change of the limit control range ± δΜ, at the same time count the mean value of the total feeding quantity t of pulp of the system; and (iv) when the surveillance counts that |t-M|>N, carrying out the assignment again M=t, returning to execute Steps (ii), (iii), and (iv).
[0007] Preferably, the steps of Step (iii) include: (a) adjusting the process parameters of the Magnetic Elution Column according to the comparing data of the regulation of the process parameters; (b) inspecting the underflow concentrate concentration, the overflowing concentration to compare with the comparing data of the regulation of the process parameters; (c) if the deviation exceeds the allowable range then carrying the corresponding regulation to the water complementarity quantity, the ore discharging quantity and/or the excitation current; and (d) repeat execution of the Steps (b) and (c) until it reaches within the permitted range.
[0008] Preferably, the pulp quality parameters in Step (iii) include the ferromagnetic property, the proportion of dry powder, particle size of the dry powder, amending and determining the total material quantity index M distributed via the pulp distribution box of the system. 4 2016204415 27 Jun2016 [0009] Preferably, the comparing data of the regulation of the process parameters includes: pulp concentration corresponding the head ore grade and the grade of the obtained concentrate; the opening of the ore supplying valve; the opening and closing quantity of the ore discharging valve, the pulp quantity; the underflow concentrate concentration of the Magnetic Elution Column; the concentrate quantity; the water complementarity quantity; the magnitude of the excitation current; the analog quantity of the overflowing concentration of the tailings; and the switch quantity of the operation status of the Magnetic Elution Column.
[0010] Preferably, the main control circuit, including the main control computer sets the memory of the supporting empirical data of the process parameters, and the supporting input and output interface of the regulation information of the sorting system.
[0011] Preferably, the signal input port of the input and output interface of the regulation information is connected with the pressure sensor, the flow sensor being set at the ore discharging outlet at the bottom of the pulp distribution box, and the total flow meter at the pulp inlet at of the pulp distribution box, the signal output port is connected with the ore discharging valve set at each ore discharging outlet.
[0012] Preferably, the signal input port of the local control circuit of the described Magnetic Elution Column is connected with the upper tailings concentration sensor, the middle concentration sensor, the bottom concentrate concentration sensor, the excitation current detecting device and the flow meter of water supplying on the corresponding Magnetic Elution Column, the signal output port is connected with the water supplying regulation valve, the concentrate regulation valve and the excitation current regulation mechanism set on the corresponding Magnetic Elution Column.
[0013] In the above technical solution, providing a method, in the concentrate sorting system, including the pulp distribution box, the magnetic elution columns and the supporting main control circuit and the local control circuit of each magnetic elution column, the pulp inlets of the pulp distribution box are connected with the pulp grinding, ingredients mixing device, the controlled ore supplying valve is set on the pulp inlet, 5 2016204415 27 Jun2016 several ore discharging outlets are set at the bottom of the pulp distribution box, ore discharging valve is set on each ore discharging outlet, and connected with the inlet of the magnetic elution column, the ore supplying valve and the ore discharging valve are controlled by the main control circuit, the main control circuit is used to regulate dynamic equilibrium of the pulp distribution box to distribute material for each magnetic elution column, each local control circuit is used to regulate the excitation current, the flow of water supplying of the corresponding magnetic elution column in order to carry out the secondary precise regulation of the sorted mineral, specifically, the regulation method of the present invention includes the following steps: 1. Amending the empirical parameters before the starting up of the equipment, predetermining the index M of the total handling capacity of pulp to be handled according to the pulp grinding, ingredient mixing quantity, amend its best handling capacity N, the effective control range ±ΔΝ, and the supporting comparing data of the regulation of process parameters under the instant quantity Nt by referring the historical operation records of single Magnetic Elution Column and the current pulp quality parameters; effective regulation range+ΔΝ, that is the fluctuating range of the best regulation handling quantity N allowed for a single magnetic elution column, which means it is allowed that the instant material quantity Nt of a single magnetic elution column fluctuates between the range from Ν-ΔΝ to Ν+ΔΝ; the supporting comparing data of the regulation of the process parameters include the corresponding excitation current, the water feeding quantity obtained according to the experience, matching the properties of mineral being sorted and under each handling quantity, for example the pulp concentration, the underflow concentrate concentration, the tailings concentration; after the above parameters are amended, which means when the actual handling quantity is in the Ν+ΔΝ range, it does not need to regulate the ore discharging valve of the pulp distribution box, it only needs to regulate a single magnetic elution column by referring the comparing data of the regulation of the process parameters in order to ensure the concentrate quality, in which, for ensuring the concentrate quality, the Ν+ΔΝ range is divided into multiple regulation unit Nu, when each deviation of the instant material quantity Nt reaches a Nu, then it is 6 2016204415 27 Jun2016 the local control circuit of the magnetic elution column to carry out the corresponding regulation according to the comparing data of the regulation of the process parameters. 2. Setting the Initial Status and the Control Parameters of the Equilibrium Status:
The operating unit of the magnetic elution columns to be applied into operation T=INT(M/N)+1, INT (M/N) rounds the M/N results, and then carrying out the assignment of the material quantity N of each magnetic elution column according to N=M/T, to distribute the material with equilibrium for the magnetic elution columns to be applied into operation, to initially ensure the efficient operation with equilibrium of the system; setting the corresponding best regulation handling material quantity N of single unit of the feeding quantity MT of the pulp distribution box (1) and the limit control interval ±ΔΜ, the corresponding table of comparisons of the values between the effective control range ±ΔΝ under the equilibrium operation status, after the completion of the initialization the system enters into the monitoring operation status; in this way it is conducive to the smooth and efficient operation of the system, not only can effectively guarantee the concentrate quality sorted, but also it is conducive to the safe production, and the effective protection of the magnetic elution columns. 3. Realizing the Efficient Operation with Equilibrium of the System with the Help of the Secondary Regulation:
Monitoring the change of the instant value Mt of the total quantity of pulp of the feeding pulp distribution box (1) and/or the pulp quantity Nt of the Magnetic Elution Column (2-1, 2-2, ..., 2-n), when the value of change reaches the regulation magnitude in ΔΝ, start up the sub-program of the parameters of the regulation process in the local control circuit (4-1, 4-2, ..., 4-n) in order to maintain the efficiency of single unit under the change of the limit control range ± δΜ. At the same time count the mean value of the total feeding quantity t of pulp of the system. 7 2016204415 27 Jun2016 4. Adjusting the Equilibrium Capacity of the System:
When the surveillance counts that |t-M|>N, carrying out the assignment again M=t, returning to execute Step 2), 3), 4).
[0014] The beneficial effect of the present invention is: (a) Setting the main control circuit and the secondary monitoring device of the local control circuit supporting the single unit in the production system including multiple standard magnetic elution columns, and equipping the data base and the comparing data of the regulation of the process parameters formed on the basis of the empirical data based on the long-term experiment of regulation of single unit and the statistics basis, there is data exchange between the main control circuit and the local control circuit. (b) Improving the efficiency of the industrialized production of the mineral sorting, both to ensure the concentrate quality, and effectively optimize the operation environment of the magnetic elution column, to ensure that each magnetic elution column operates in the best status. (c) In any case, it does not need the human intervention for the operation of the ore feeding, water supplying, tailing discharging, concentrate discharging of the magnetic elution columns, the whole system automatically operates. (d) When there is abnormal operating status, the system can automatically alarm, which is convenient to inform. (e) It is widely applicable in all types of large and small-scale panning magnetic sorting projects.
Brief Description of the Drawings [0015] Further features of the present invention are more fully described in the following description of several non-limiting embodiments thereof. This description is included solely for the purposes of exemplifying the present invention. It should not be understood as a restriction on the broad summary, disclosure or description of the 8 2016204415 27 Jun2016 invention as set out above. The description will be made with reference to the accompanying drawings in which:
Figure 1 is a diagram schematic diagram of the control principle structure of the equilibrium material distribution system of the present invention; and
Figure 2 is the schematic of the structure of the equilibrium material distribution system of the present invention.
[0016] In the drawings like structures are referred to by like numerals throughout the several views. The drawings shown are not necessarily to scale, with emphasis instead generally being placed upon illustrating the principles of the present invention.
Description of Embodiments [0017] Referring to Figures 1 and 2 the following features illustrates Pulp distribution box 1, Pulp supplying valve 11, Total flow meter 12, concentration sensor 13, Pulp discharge outlets 1-1, 1-2, 1-n respectively represents the pulp discharging outlets set at the bottom of the pulp distribution box 1, reverse flush valves 1-1-1, 1-2-1, 1 -n-1, magnetic elution columns 2-1, 2-2, 2-n, Tailing concentrate sensor 211, middle concentration sensor 212, concentrate concentration sensor 213, current regulation mechanism 214, water feeding regulation valve 215, flow meter 216. Water supplying meter; 217. Concentrating regulation valve 3. Input and output interfaces for the regulation information 4-1, 4-2, 4-n, local control circuit of the magnetic elution column 5, Main control computers P1, P2, Pn respectively represents the pressure sensors set at the pulp discharging outlets, concentration sensors C1, C2, Cn, flow sensors L1, L2, Ln.
[0018] The pulp referred to in the specification is ore pulp.
[0019] With reference to Figures 1 and 2, the present invention provides a method of regulating dynamic equilibrium in a concentrate sorting system. The structure of the concentrate sorting system refers to Figure 2, the control principle refers to Figure 1. The concentrate sorting system includes the pulp distribution box 1, the magnetic elution column 2-1,2-2, 2-n and the supporting main control circuit and the local control circuits 4-1, 4-2, 4-n of each magnetic elution column. The pulp inlets of the pulp distribution box 1 are connected with the pulp grinders (not shown), ingredient mixing 9 2016204415 27 Jun2016 device (not shown). Ore feeding valve 11, flow meter 12 and the concentration sensor 13 are set on the pulp inlets and are utilized for regulating and detecting in real-time the total pulp quantity entering the system. Multiple ore discharging outlets 1-1, 1-2, 1-n, are set at the bottom of the pulp distribution box 1. The pressure sensors P1, P2, Pn are set at the ore discharging outlets 1-1, 1-2, 1-n and are utilized to measure the pressure on each ore discharging outlet and to calculate the average pressure and the liquid height of the pulp in the pulp distribution box 1 by calculating the average value. The ore discharging vale 1-1-1, 1-2-1, 1 -n-1, the concentration sensors C1, C2, Cn and the flow sensors L1, L2, Ln are respectively set on the ore discharging outlets 1-1, 1-2, 1-n, and are connected with the inlets of the magnetic elution columns 2-1, 2-2, 2-n. The flow sensors L1, L2, Ln are utilized to monitor in real-time the pulp flow and pulp concentration at each ore discharging outlet, which is the flow and the concentration of the pulp entering each magnetic elution column. The ore supplying valve 11 and the ore discharging valve 1-1-1, 1-2-1, 1 -n-1 are controlled by the main control circuit, in the main control circuit including the main control computer 5 setting the memory of the supporting empirical data of the process parameters, and the supporting input and output interface 3 of the regulation information of the sorting system The main control computer 5 is utilized for regulating the dynamic equilibrium of the pulp distribution box 1 to distribute material for each magnetic elution column. Each local control circuit 4-1, 4-2, 4-n is utilized to regulate the excitation current and the flow of water supplying of the corresponding magnetic elution column in order to carry out the secondary precise regulation of the sorted mineral. The following non-limiting example is used to explain the regulation method of the present invention in order to facilitate the understanding, includes the following steps.
Amending the Empirical Parameters [0020] Before the starting up of the equipment, the total material quantity index of the pulp to be handled according the pulp grinding is determined. In one embodiment the ingredient mixing quantity is M=1000t/h, the raw ore of magnetite sorting is the magnetite with grade 23-25%, the concentrate grade is 65-66%, a CXJ34000 magnetic elution column is chosen, the maximum handling capacity Nmax=75t/h. The system corrects its best regulation handling capacity by referring to the historic operating records of the magnetic elution column and the current pulp quality parameters. In one embodiment the parameters are N=60t/h, the effective regulation range ±AN=±3.75t/h. 10 2016204415 27 Jun2016
The supporting comparing data of the regulation of the process parameters, in which, the comparing data of the regulation of the process parameters include pulp concentration corresponding the head ore grade and the grade of the obtained concentrate, the opening of the ore supplying valve 11, the opening and closing quantity of the ore discharging valve, the pulp quantity, the underflow concentrate concentration of the Magnetic Elution Column, the concentrate quantity, the tailing concentration, the middle concentration, the water complementarity quantity, the magnitude of the excitation current, and the data of the overflowing concentration of the tailings. Exemplary figures in order to facilitate the direct and rapid execution of the regulation method are found in Table 1.
Table 1
Comparing Data of the Regulation of the Process Parameters
Concentrate Grade Pulp Concentration N (t/h) δΝ (kg/min) Concentrate Concentration Tailing Concentration Water Complementarity Quantity Excitation Current <±0.375 60.0 2.0 160.0 10.0 +0.375-—-+1.125 -1.125~-0.375 61.1 2.1 163.0 10.2 65-66 30 60 +1.125—+2.25 -2.25—1.125 61.3 2.5 168.0 10.5 +2.25~+3.75 -3.75~-2.25 61.6 2.8 170.0 11.0 [0021] After amending the above parameters, when the material quantity is in the Ν±δΝ=60 t/h±3.75t/h range, with the help of the local control circuit to regulate the single magnetic elution column to maintain the best efficiency and the operating status of single unit, in the effective regulation interval ±δΝ, in order to ensure the concentrate grade, δΝ is divided into several regulation magnitudes. The data of the Table 1 indicates, when the pulp material quantity deviation N actually distributed to a single magnetic elution column is less than ±0.375t/h, the operating parameters of the magnetic elution column are automatically corrected according to the parameters of the first line; when the pulp material quantity deviation N actually distributed to a single magnetic elution column is between +0.375 ~ +1.125 t/h or -1.125 ~ -0.375 t/h, the operating parameters of the magnetic elution column are automatically corrected according to the parameters of the third line, and so on. 11 2016204415 27 Jun2016
Setting the Initial Status and the Control Parameters of the Equilibrium Status [0022] In one embodiment, where T=INT (M/N) +1=INT (1000 t/h /60) +1=17, the quantity of the magnetic elution columns of the initial operation is 17 sets, again according to N=M/T=1000 t/h /17=58.8 t/h. The assignment to the material quantity of the initial of each Magnetic Elution Column N=58.8 t/h is carried out and the deviation quantity of the material quantity N is ΔΝ=0.2 t/h. The starting status is set according to the corresponding parameters of the first line of Table 1. After the operation reaches the equilibrium operation status, the real-time measurement of ΔΝ follows the product of the corresponding ore supply flow and the concentration, the comparing data of the regulation of the process parameters include the figures of following Table 2 under the condition of the set supporting pulp distribution box 1, setting the corresponding best regulation handling material quantity N of single unit of the standard feeding quantity M in the pulp distribution box under the equilibrium operation and the limit control interval ±ΔΜ. The corresponding table of comparisons relates to the values between the effective control range ΔΝ as in the following Table 2. The equilibrium operation status, after the completion of the initialization the system enters into the monitoring operation status; according to the operating quantity and the best regulation handling material quantity N of single unit, the effective regulation range ΔΝ, it is known that, when the pulp quantity (flow*concentration) Mt in the pulp distribution box under equilibrium status is in the range of Μ±ΔΜ, according to Nt=t/T, the real-time measurement of ΔΝ under equilibrium condition is regulated according to the corresponding data of ΔΜ.
Table 2
Corresponding Comparison of the Total Ore Feeding Quantity M, the Value of Change ΔΜ and the Value of Change ΔΝ of Material Quantity of a Single Magnetic Elution
Column Under the Equilibrium Status
Setting Total Material Feeding Quantity M Actual Total Material Feeding Quantity Mt Quantity of Change of Total Material Feeding ΔΜ Change of Material Quantity of Single Maqnetic Elution Column ΔΝ Quantity of Magnetic Elution Columns in Production Line 940 934.0-946.0 <±6.0 <+0.375 16 946.0 - 960.0 920.0-934.0 +6.0-+20.0 -20.0—6.0 +0.375-+1.125 -1.125—0.375 960.0- 976.0 904.0- 920.0 +20.0.-+36.0 -36.0—20.0 +1.125-+2.25 -2.25--1.125 976.0- 1000.0 880.0- 1000.0 +36.0-+60.0 -60.0—36.0 +2.25-+3.75 -3.75~-2.25 2016204415 27 Jun2016 12 Setting Total Material Feeding Quantity M Actual Total Material Feeding Quantity Mt Quantity of Change of Total Material Feeding ΔΜ Change of Material Quantity of Single Magnetic Elution Column ΔΝ Quantity of Magnetic Elution Columns in Production Line 1000 994.0-1006.0 <±6.0 <+0.375 17 1006.0-1020.0 980.0-994.0 +6.0-+20.0 -20.0—6.0 +0.375-+1.125 -1.125—0.375 1020.0-1036.0 964.0-980.0 +20.0.-+36.0 -36.0—20.0 +1.125-+2.25 -2.25--1.125 1036.0-1060.0 940.0 - 964.0 +36.0-+60.0 -60.0—36.0 +2.25-+3.75 -3.75~-2.25 1060 1054.0-1066.0 <+6.0 <+0.375 18 1066.0-1080.0 1040.0-1054.0 +6.0-+20.0 -20.0—6.0 +0.375-+1.125 -1.125—0.375 1080.0- 1096.0 1024.0- 1040.0 +20.0.-+36.0 -36.0—20.0 +1.125-+2.25 -2.25--1.125 1096.0- 1120.0 1000.0- 1024.0 +36.0-+60.0 -60.0—36.0 +2.25-+3.75 -3.75~-2.25
Realizing the Efficient Operation with Equilibrium of the System with the Help of the Secondary Regulation [0023] Calculating the change of the material quantity distributed to a single magnetic elution column with the help of the surveillance of the actual total material feeding quantity, and again according to the corresponding value of change to start up sub-program of the regulation of the process parameters in the local control circuit to regulate the water complementarity quantity and/or the excitation current according to the empirical data in the Table 1 in order to maintain the efficiency of single unit under the change of the material quantity. The steps of the sub-program of the regulation of the process parameters include: (a) Adjusting the process parameters of the Magnetic Elution Column according to the comparing data of the regulation of the process parameters. (b) Inspecting the underflow concentrate concentration and the overflowing concentration to compare with the comparing data of the regulation of the process parameters. (c) If the deviation exceeds the allowable range then carrying the corresponding regulation to the water complementarity quantity, the ore discharging quantity and/or the excitation current. 13 2016204415 27 Jun2016 (d) Repeat execution of the Steps (b) and (c) until it reaches within the permitted range.
Adjusting the Equilibrium Capacity of the System [0024] When the surveillance counts that |t-M|>N, carrying out the assignment again M=t, returning to execute Step 2), 3), 4). For example, when t=1060t/h, then carrying out the assignment again M=1060t/h, returning to execute Step 2), according to T=INT (M/N) +1 =[1060 t/h /60]+1=18, N=M/T=1060 t/h /18=58.9 t/h, at the same time maintaining on real-time the efficient operation of the system with equilibrium according the above surveillance.
[0025] The pulp quality parameters in the described Step 3) includes ferromagnetic properties, iron recovery rate, the proportion of dry powder, particle size of the dry powder, pulp concentration, the total material quantity of pulp index M and the best regulation handling material quantity N of the magnetic elution column. The effective regulation interval ΔΝ is corrected and set according to the concentrate quantity and the pulp quality parameters to be obtained.
[0026] In order to ensure the stability of the operation, the pulp distribution box 1 of the concentrate sorting system equips also a stirring device to facilitate the uniformity of the pulp. In order to facilitate the adjustment of the concentration of the pulp entering the magnetic elution column, anti-water reverse flash valve is set on the upper and bottom of each ore discharging valve. In the main control circuit of the system including the main control computer 5, setting the memory of the supporting empirical data of the process parameters, and the supporting input and output interface 3 of the regulation information of the sorting system, the main control computer 5 is utilized for receiving the information of the total material quantity meter 12 on the pulp distribution box 1, the opening information of the ore discharging valve of each ore discharging outlet and the information of the pressure sensors P1, P2, Pn, the concentration sensors C1, C2, Cn, the material quantity sensors L1, L2, Ln and compare with the saved supporting empirical data of the process parameters, and finally output the control signal to the ore discharging valve 1-1-1, 1-2-1, 1 -n-1. At the same time the information of the pulp quantity and the concentration on each ore discharging outlet is transferred to the local control circuit of the corresponding magnetic elution column. To realize the secondary regulation with the help of the local control circuit, or the concentration sensors C1, C2, 14 2016204415 27 Jun2016
Cn and the material quantity sensors L1, L2, Ln on each ore discharging outlets are respectively and directly connected to the signal input port of the local control circuit of the corresponding magnetic elution columns, in order to facilitate the secondary regulation.
[0027] Setting in supporting with the sub-program of regulation of the process parameters in the Step 3) of the regulation method of equilibrium, the signal input port of the local control circuit 4-1, 4-2, 4-n of the described Magnetic Elution Column is connected with the upper tailings concentration sensor 211, the middle concentration sensor 212, the bottom concentrate concentration sensor 213, the excitation current detecting device and the flow meter 216 of water supplying on the corresponding Magnetic Elution Column 2-1, 2-2, 2-n. The signal output port is connected with the water supplying regulation valve 215, the concentrate regulation valve 217 and the excitation current regulation mechanism 214 set on the corresponding Magnetic Elution Column, and realizing the precise regulation with the help of the saved comparing data of regulation of the process parameters in supporting.
[0028] The invention disclose a regulation method of dynamic equilibrium in the concentrate sorting system, which is belong to the mineral sorting area. The technical solution utilized is to set the main control circuit and the secondary monitoring device of the local control circuit supporting the single unit in the production system including multiple standard magnetic elution columns, and equipping the data base and the comparing data of the regulation of the process parameters formed on the basis of the empirical data based on the long-term experiment of regulation of single unit and the statistics basis. On the basis of the realization of the secondary precise amendment, ensuring that the system can operate in long term with equilibrium, efficiency and low consumption, not only ensure the concentrate quality, but more in line with the concept of environmental protection, energy saving and high efficiency. Further, the computer 5 is also connected with the liquid level meter H, the concentration sensors C1, C2, Cn, the material quantity sensors L1, L2, Ln on the receiving pulp distribution box 1 and the opening information of the ore discharging valve of each ore discharging outlet and the pressure sensors P1, P2, Pn, to finally realize the regulation of dynamic equilibrium of the concentrate sorting system by monitoring the change of ΔΗ, ΔΟ, Δί, ΔΡ and monitoring and calculating the total material feeding quantity Mt and the pulp quantity Nt of a single magnetic elution column. 2016204415 27 Jun2016 15
Variations and Modifications [0029] Modifications and variations such as would be apparent to the skilled addressee are considered to fall within the scope of the present invention. The present invention is not to be limited in scope by any of the specific embodiments described herein. These embodiments are intended for the purpose of exemplification only. Functionally equivalent products, formulations and methods are clearly within the scope of the invention as described herein.
[0030] Reference to positional descriptions, such as lower and upper, are to be taken in context of the embodiments depicted in the figures, and are not to be taken as limiting the invention to the literal interpretation of the term but rather as would be understood by the skilled addressee.
[0031] Throughout this specification, unless the context requires otherwise, the word “comprise”or variations such as “comprises”or “comprising”, will be understood to imply the inclusion of a stated integer or group of integers but not the exclusion of any other integer or group of integers.
[0032] Also, future patent applications maybe filed in Australia or overseas on the basis of, or claiming priority from, the present application. It is to be understood that the following provisional claims are provided by way of example only, and are not intended to limit the scope of what may be claimed in any such future application. Features may be added to or omitted from the provisional claims at a later date so as to further define or re-define the invention or inventions.
Claims (7)
- CLAIMS:1. A regulation method of dynamic equilibrium in a concentrate sorting system, the concentrate sorting system including: at least one Magnetic Elution Column; a pulp distribution box with at least one ore discharging port and a pulp inlet connected to a pulp grinder; the at least one ore discharge port being connected to a Magnetic Elution Column via an ore discharging valve; an ingredients mixing device connected to a controlled ore supplying valve; wherein the system further includes a main control circuit and a at least one local control circuit for each Magnetic Elution Column; and wherein the at least one Magnetic Elution Column regulating dynamic equilibrium through at least the following steps: (i) determining an index of the system’s total handling capacity of pulp, determining a best handling capacity, an effective control range, and comparing data of process parameters relating to an instant quantity by referring to historical operation records of the at least one Magnetic Elution Column and current pulp quality parameters; (ii) assigning to an operating unit of the at least one Magnetic Elution Column according to T=INT (M/N) +1 and assigning a handling capacity N of the at least one Magnetic Elution Column according to N=M/T, setting a corresponding best regulation handling material quantity N of single unit of the feeding quantity MT of the pulp distribution box and the limit control interval ±ΔΜ, the corresponding table of comparisons of the values between the effective control range ±ΔΝ under the equilibrium operation status, after the completion of the initialization the system enters into the monitoring operation status; (iii) monitoring the change of the instant value Mt of the total quantity of pulp of the feeding pulp distribution box and/or the pulp quantity Nt of the Magnetic Elution Column, when the value of change reaches the regulation magnitude in ΔΝ, start up the sub-program of the parameters of the regulation process in the local control circuit in order to maintain the efficiency of single unit under the change of the limit control range ± δΜ, at the same time count the mean value of the total feeding quantity t of pulp of the system; and (iv) when the surveillance counts that |t-M|>N, carrying out the assignment again M=t, returning to execute Steps (i), (iii), and (iv).
- 2. The regulation method as claimed in Claim 1, wherein the steps of Step (iii) include: (a) adjusting the process parameters of the Magnetic Elution Column according to the comparing data of the regulation of the process parameters; (b) inspecting the underflow concentrate concentration, the overflowing concentration to compare with the comparing data of the regulation of the process parameters; (c) if the deviation exceeds the allowable range then carrying the corresponding regulation to the water complementarity quantity, the ore discharging quantity and/or the excitation current; and (d) repeat execution of the Steps (b) and (c) until it reaches within the permitted range.
- 3. The regulation method as claimed in Claim 1, wherein the pulp quality parameters in Step (iii) include the ferromagnetic property, the proportion of dry powder, particle size of the dry powder, amending and determining the total material quantity index M distributed via the pulp distribution box of the system.
- 4. The regulation method as claimed in Claim 1, wherein the comparing data of the regulation of the process parameters includes: pulp concentration corresponding the head ore grade and the grade of the obtained concentrate; the opening of the ore supplying valve; the opening and closing quantity of the ore discharging valve; the pulp quantity; the underflow concentrate concentration of the Magnetic Elution Column; the concentrate quantity; the water complementarity quantity; the magnitude of the excitation current; the analog quantity of the overflowing concentration of the tailings; and the switch quantity of the operation status of the Magnetic Elution Column.
- 5. The regulation method as claimed in Claim 1, wherein the main control circuit, including the main control computer sets the memory of the supporting empirical data of the process parameters, and the supporting input and output interface of the regulation information of the sorting system.
- 6. The regulation method as claimed in Claim 5, wherein the signal input port of the input and output interface of the regulation information is connected with the pressure sensor, the flow sensor being set at the ore discharging outlet at the bottom of the pulp distribution box, and the total flow meter at the pulp inlet at of the pulp distribution box, the signal output port is connected with the ore discharging valve set at each ore discharging outlet.
- 7. The regulation method as claimed in any one of the preceding claims, wherein: the signal input port of the local control circuit of the described Magnetic Elution Column is connected with the upper tailings concentration sensor; the middle concentration sensor; the bottom concentrate concentration sensor; the excitation current detecting device and the flow meter of water supplying on the corresponding Magnetic Elution Column; the signal output port is connected with the water supplying regulation valve; the concentrate regulation valve; and the excitation current regulation mechanism set on the corresponding Magnetic Elution Column.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620014732.0U CN205550543U (en) | 2016-01-08 | 2016-01-08 | Automatic change concentrate of dynamic equalization and select separately system |
| CN201610010551.5A CN106959606B (en) | 2016-01-08 | 2016-01-08 | Dynamic equalization in concentrate sorting system regulates and controls method |
| CN201620014732.0 | 2016-01-08 | ||
| CN201610010551.5 | 2016-01-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2016204415A1 true AU2016204415A1 (en) | 2017-07-27 |
| AU2016204415B2 AU2016204415B2 (en) | 2017-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2016204367A Abandoned AU2016204367A1 (en) | 2016-01-08 | 2016-06-24 | Concentrate sorting system with automatic dynamic equilibrium |
| AU2016204415A Active AU2016204415B2 (en) | 2016-01-08 | 2016-06-27 | The regulation method of dynamic equilibrium in the concentrate sorting system |
| AU2022256228A Pending AU2022256228A1 (en) | 2016-01-08 | 2022-10-21 | Concentrate Sorting System With Automatic Dynamic Equilibrium |
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| Application Number | Title | Priority Date | Filing Date |
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| AU2016204367A Abandoned AU2016204367A1 (en) | 2016-01-08 | 2016-06-24 | Concentrate sorting system with automatic dynamic equilibrium |
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| Application Number | Title | Priority Date | Filing Date |
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| AU2022256228A Pending AU2022256228A1 (en) | 2016-01-08 | 2022-10-21 | Concentrate Sorting System With Automatic Dynamic Equilibrium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113634369A (en) * | 2020-05-11 | 2021-11-12 | 北矿机电科技有限责任公司 | Permanent magnetism cylinder magnet separator self-adaptation control system |
| CN116159672B (en) * | 2023-03-01 | 2024-01-05 | 湖南中科电气股份有限公司 | Magnetic separation system based on graphitized material sorting |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020157992A1 (en) * | 1996-09-03 | 2002-10-31 | Mcgaa John R. | Alternating current magnetic separator |
| WO2008108888A2 (en) * | 2006-10-05 | 2008-09-12 | Holden Charles S | Separation of radium and rare earth elements from monazite |
| WO2013113990A1 (en) * | 2012-01-30 | 2013-08-08 | Kaivogen Oy | Separation of luminescent nanomaterials |
-
2016
- 2016-06-24 AU AU2016204367A patent/AU2016204367A1/en not_active Abandoned
- 2016-06-27 AU AU2016204415A patent/AU2016204415B2/en active Active
-
2022
- 2022-10-21 AU AU2022256228A patent/AU2022256228A1/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020157992A1 (en) * | 1996-09-03 | 2002-10-31 | Mcgaa John R. | Alternating current magnetic separator |
| WO2008108888A2 (en) * | 2006-10-05 | 2008-09-12 | Holden Charles S | Separation of radium and rare earth elements from monazite |
| WO2013113990A1 (en) * | 2012-01-30 | 2013-08-08 | Kaivogen Oy | Separation of luminescent nanomaterials |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2016204415B2 (en) | 2017-12-21 |
| AU2022256228A1 (en) | 2022-11-24 |
| AU2016204367A1 (en) | 2017-07-27 |
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