CN105022302A - Mixed concentration grade control system and control method - Google Patents
Mixed concentration grade control system and control method Download PDFInfo
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- CN105022302A CN105022302A CN201510491330.XA CN201510491330A CN105022302A CN 105022302 A CN105022302 A CN 105022302A CN 201510491330 A CN201510491330 A CN 201510491330A CN 105022302 A CN105022302 A CN 105022302A
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- 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 relates to the technical field of ore dressing, especially to a mixed concentration grade control system and control method. The mixed concentration grade control system comprises a human-machine interface unit, a detection unit, a central data processing unit and an execution unit. Setting parameters related to mixed concentration grades are set in the human-machine interface unit; the detection unit detects actual parameters related to the mixed concentration grades in real time; the central data processing unit carries out intelligent analyses and determination on the actual parameters and the set parameters directly; and according to the analysis and determination result, the execution unit controls correlated motion and adjusts the set parameter values, so that all actual parameters are kept in a set parameter range. According to the invention, on the basis of automatic control, the concentration grade can be controlled between a set upper limit and a set lower limit stably, thereby guaranteeing the good concentration product quality.
Description
Technical field
The present invention relates to technical field of beneficiation, especially relate to a kind of mixing featured goods level controlling system and control method.
Background technology
Mixing selected is whole flotation flowsheet very important ingredient, mixes the quality of the selected concentrate direct relation final products selected.
The bulk flotation technological process of production is roughly:
The ore pulp of ore grinding cyclone overflow enters mixing and roughly selects flotation machine after stirring, and mixing is roughly selected flotation machine and floatingly selected the concentrate met the demands and directly enter and roughly select pump box, is transported to copper molybdenum mixing concentrator by foam pump;
Flotation machine overflow product introduction tank diameter is roughly selected in mixing, and mixing is roughly selected the underflow ore pulp obtained and entered multistage mixing scavenging flotation machine by the drop of flotation machine.The overflow pulp of mixing scavenging flotation machine at different levels enters corresponding foam pump box, then turns back to mixing by foam pump and roughly select flotation machine or last mixing scavenging flotation machine, and the underflow ore pulp of most final stage mixing scavenging flotation machine enters mine tailing.
In tank diameter, ore pulp enters mixing precision sorting flotation machine at different levels successively by drop, and first order mixing precision sorting flotation machine underflow ore pulp then turns back to mixing and roughly selects flotation machine; The underflow ore pulp of rear stage mixing precision sorting flotation machine turns back to previous stage mixing precision sorting flotation machine; Most final stage mixing precision sorting flotation machine overflow pulp enters foam pump box, is transported to the dehydration of copper molybdenum bulk concentrate concentrator, obtains qualified copper molybdenum bulk concentrate through selected by foam pump.
In current beneficiation flowsheet equipment, owing to mixing, selected processing power is not enough or manual operation is improper, often occurs that mixing is roughly selected flotation machine and scraped output very greatly, and mixes selected effective sorting of cannot carrying out, be in the situation emitting groove always.So not only cannot ensure the grade of bulk concentrate, and because underflow back amount adds, the output of scraping being equivalent to mix roughing separation equipment increases, and finally still enters mixing picking equipment, what exacerbate mixing precision sorting flotation machine like this emits groove phenomenon, causes vicious cycle.And if reduce and roughly select and scrape output, then can cause metal loss, the recovery declines.
Summary of the invention
The object of the present invention is to provide a kind of mixing featured goods level controlling system and control method, to solve the technical matters that in the mixing refining process that exists in prior art, grade fluctuation is larger.
One mixing featured goods level controlling system provided by the invention, comprising:
Human and machine interface unit, input the setup parameter about the selected grade of mixing wherein, described setup parameter comprises: with roughly select the level set parameter that the grade parameter of the overflow product of a flotation machine is roughly selected in mixing, a flotation machine is roughly selected in described mixing that foam pump box is connected, mix precision sorting flotation machine overflow product grade setup parameter interval and mix the setting level parameter of precision sorting flotation machine;
Detecting unit, be configured to detect the actual parameter about the selected grade of mixing, described actual parameter comprises: the actual product place value of the overflow product of the actual liquid level value that the actual product place value of the overflow product of a flotation machine is roughly selected in described mixing, a flotation machine is roughly selected in described mixing and mixing precision sorting flotation machine;
Central data processing unit, intellectual analysis judgement is carried out after being configured to described actual parameter and described setup parameter directly to carry out to contrast or process, and according to analysis judged result, improve or reduce the setting level parameter that a flotation machine or mixing precision sorting flotation machine are roughly selected in mixing;
Performance element, mixing is regulated to roughly select the underflow valve of a flotation machine, the actual liquid level value stabilization making mixing roughly select a flotation machine roughly selects the setting level parameter of a flotation machine in set mixing, thus the actual product place value making mixing roughly select the overflow product of a flotation machine remain on mixing roughly select in the grade parameter area of the overflow product of a flotation machine; Regulate the underflow valve opening of mixing precision sorting flotation machine, thus the actual product place value of the overflow product of mixing precision sorting flotation machine is remained in the grade parameter area of the overflow product of mixing precision sorting flotation machine.
Preferably, described detecting unit detects the actual product place value that the overflow product of a flotation machine is roughly selected in mixing, by central data processing unit, it is compared with the grade setup parameter interval mixing the overflow product roughly selecting a flotation machine, in odd-times comparing result, during if any actual product place value more than half below or above the grade parameter minimum set or mxm., then reduce or improve the setting level parameter that a flotation machine is roughly selected in mixing, and regulate mixing to roughly select the underflow valve opening of a flotation machine, mixing is made to roughly select the actual liquid level value stabilization of a flotation machine at up-to-date setting level parameter, mixing is finally made to roughly select the actual product place value of the overflow product of a flotation machine in odd-times comparing result, there is result more than half in the grade parameter area of setting,
Described detecting unit detects the actual product place value of the overflow product of mixing precision sorting flotation machine, by central data processing unit, its grade setup parameter interval with the overflow product mixing precision sorting flotation machine is compared, in odd-times comparing result, during if any actual product place value more than half below or above the grade parameter minimum set or mxm., then increase or reduce the aperture parameter of the underflow valve that mixing precision sorting flotation machine sets, finally make the actual product place value of the overflow product of mixing precision sorting flotation machine in odd-times comparing result, there is result more than half in the grade parameter area of setting.
Preferably, described mixing precision sorting flotation machine adopts multistage work flow;
When increasing or reduce the aperture parameter mixing the underflow valve that precision sorting flotation machine sets, first increase or reduce the aperture parameter of the underflow valve that smart two flotation machine of mixing set;
As mix smart two flotation machine settings the aperture parameter adjustment of underflow valve to maximal value or minimum value time, still there is the actual product place value of the overflow product of mixing precision sorting flotation machine more than half below or above the grade parameter minimum of overflow product of the mixing precision sorting flotation machine of setting or mxm., then increase or reduce the aperture parameter of underflow valve of the smart three flotation machine settings of mixing; According to above-mentioned judgement and method of adjustment, adjust the underflow valve opening parameter of subsequent stages mixing precision sorting flotation machine successively to afterbody mixing precision sorting flotation machine, the underflow valve opening parameter of the single-minded flotation machine of finally adjustment mixing;
When the actual product place value of the overflow product mixing precision sorting flotation machine has result more than half in the grade parameter area set in odd-times contrast, the parameter stability of all mixing precision sorting flotation machines is at currency.
Preferably, described underflow valve opening parameter adopts the mode of substep adjustment, and often step increases or reduces the 2%-4% of underflow valve opening.
Preferably, described parameter also comprises the level set parameter that No. three flotation machine are roughly selected in mixing, No. four flotation machine are roughly selected in mixing being positioned at described mixing and roughly selecting a flotation machine next stage platform, and described actual parameter also comprises the actual liquid level value that No. three flotation machine are roughly selected in described mixing, No. four flotation machine are roughly selected in mixing.
Preferably, as as described in mixing precision sorting flotation machine, the equal adjusted of aperture parameter of the underflow valve of the setting of all mixing precision sorting flotation machines is to maximal value or minimum value, still there is the actual product place value of the overflow product of mixing picking equipment more than half below or above the grade parameter minimum of overflow product of the mixing precision sorting flotation machine of setting or mxm., then reduce or improve mixing and roughly select No. three flotation machine, the setting level parameter of No. four flotation machine is roughly selected in mixing, mixing is made to roughly select No. three flotation machine, mixing roughly selects the actual liquid level value stabilization of No. four flotation machine at up-to-date setting level parameter, thus make the actual product place value of the overflow product of mixing precision sorting flotation machine in odd-times comparing result, there is result more than half in the grade parameter area of setting.
The selected grade control method of one mixing provided by the invention, comprising:
Foresee steps: input the setup parameter about the selected grade of mixing in human and machine interface unit, described setup parameter comprises: with roughly select the level set parameter that the grade parameter of the overflow product of a flotation machine is roughly selected in mixing, a flotation machine is roughly selected in described mixing that foam pump box is connected, mix precision sorting flotation machine overflow product grade setup parameter interval and mix the setting level parameter of precision sorting flotation machine;
Detecting step: utilize detecting unit detection about the actual parameter of the selected grade of mixing, described actual parameter comprises: the actual product place value of the overflow product of the actual liquid level value that the actual product place value of the overflow product of a flotation machine is roughly selected in described mixing, a flotation machine is roughly selected in described mixing and mixing precision sorting flotation machine;
Treatment step: central data processing unit, intellectual analysis judgement is carried out after being configured to described actual parameter and described setup parameter directly to carry out to contrast or process, and according to analysis judged result, improve or reduce the setting level parameter that a flotation machine or mixing precision sorting flotation machine are roughly selected in mixing;
Mix selected grade rate-determining steps: according to the analysis judged result of described CPU (central processing unit), improve or reduce mixing and roughly select the setting level parameter of a flotation machine, thus the actual product place value making mixing roughly select the overflow product of a flotation machine remains on mixing roughly selects in the grade parameter area of the overflow product of a flotation machine; Regulate the underflow valve opening of mixing precision sorting flotation machine, the actual liquid level parameter stability of mixing precision sorting flotation machine at setting level parameter, thus makes the actual product place value of the overflow product of mixing precision sorting flotation machine remain in the grade parameter area of the overflow product of mixing precision sorting flotation machine.
Preferably, the selected grade rate-determining steps of described mixing is:
Described detecting unit detects the actual product place value that the overflow product of a flotation machine is roughly selected in mixing, by central data processing unit, it is compared with the grade setup parameter interval mixing the overflow product roughly selecting a flotation machine, in odd-times comparing result, during if any actual product place value more than half below or above the grade parameter minimum set or mxm., then reduce or improve the setting level parameter that a flotation machine is roughly selected in mixing, regulate underflow valve opening, the actual liquid level value stabilization making mixing roughly select a flotation machine roughly selects the setting level parameter of a flotation machine in up-to-date mixing, mixing is finally made to roughly select the actual product place value of the overflow product of a flotation machine in odd-times comparing result, there is result more than half in the grade parameter area of setting,
Described detecting unit detects the actual product place value of the overflow product of mixing precision sorting flotation machine, by central data processing unit by its with mix precision sorting flotation machine overflow product setting grade parameter region between compare, in odd-times comparing result, during if any actual product place value more than half below or above the grade parameter minimum set or mxm., then increase or reduce the aperture parameter of the underflow valve that mixing precision sorting flotation machine sets, finally make the actual product place value of the overflow product of mixing precision sorting flotation machine in odd-times comparing result, there is result more than half in the grade parameter area of setting.
Preferably, described mixing precision sorting flotation machine adopts multistage work flow;
When increasing or reduce the aperture parameter mixing the underflow valve that precision sorting flotation machine sets, first increase or reduce the aperture parameter of the underflow valve that smart two flotation machine of mixing set;
As mix smart two flotation machine settings the aperture parameter adjustment of underflow valve to maximal value or minimum value time, still there is the actual product place value of the overflow product of mixing precision sorting flotation machine more than half below or above the grade parameter minimum of overflow product of the mixing precision sorting flotation machine of setting or mxm., then increase or reduce the aperture parameter of underflow valve of the smart three flotation machine settings of mixing; According to above-mentioned judgement and method of adjustment, adjust the underflow valve opening parameter of subsequent stages mixing precision sorting flotation machine successively to afterbody mixing precision sorting flotation machine, the underflow valve opening parameter of the single-minded flotation machine of finally adjustment mixing;
When the actual product place value of the overflow product mixing precision sorting flotation machine has result more than half in the grade parameter area set in odd-times contrast, the parameter stability of all mixing precision sorting flotation machines is at currency.
Preferably, the selected grade rate-determining steps of described mixing is:
When increasing or reduce the aperture parameter mixing the underflow valve that precision sorting flotation machine sets, first increase or reduce the aperture parameter of the underflow valve that smart two flotation machine of mixing set;
As mix smart two flotation machine settings the aperture parameter adjustment of underflow valve to maximal value or minimum value time, still there is the actual product place value of the overflow product of mixing precision sorting flotation machine more than half below or above the grade parameter minimum of overflow product of the mixing precision sorting flotation machine of setting or mxm., then increase or reduce the aperture parameter of underflow valve of the smart three flotation machine settings of mixing; According to above-mentioned judgement and method of adjustment, adjust the underflow valve opening parameter of subsequent stages mixing precision sorting flotation machine successively to afterbody mixing precision sorting flotation machine, the underflow valve opening parameter of the single-minded flotation machine of finally adjustment mixing; When the actual product place value of the overflow product mixing precision sorting flotation machine has result more than half in the grade parameter area set in odd-times contrast, all mixing precision sorting flotation machine parameter stabilities are at currency;
If the equal adjusted of aperture parameter of the underflow valve of the setting of all mixing precision sorting flotation machines is to maximal value or minimum value, still there is the actual product place value of the overflow product of mixing precision sorting flotation machine more than half below or above the grade parameter minimum of overflow product of the mixing precision sorting flotation machine of setting or mxm., then reduce or improve mixing and roughly select No. three flotation machine, the setting level parameter of No. four flotation machine is roughly selected in mixing, mixing is made to roughly select No. three flotation machine, the actual liquid level value stabilization that No. four flotation machine are roughly selected in mixing roughly selects No. three flotation machine in up-to-date mixing, the setting value of No. four flotation machine is roughly selected in mixing, thus make the actual product place value of the overflow product of mixing picking equipment in odd-times comparing result, there is result more than half in the grade parameter area of setting.
The control procedure that the application provides is step by step, adjusts, after a while view result, if qualified, just no longer adjusts, if defective, continues adjustment, until limit value, i.e. and Dynamic controlling adjustment modes.
Beneficial effect of the present invention is:
(1) concentrate grade stability contorting is between the high lower bound of setting, ensure that concentrate product is qualified;
(2) ensure that the grade scraping volume production product of a flotation machine is roughly selected in mixing, make it directly as final products, what effectively raise that mixing roughly selects floatation equipment scrapes output, and then improves the recovery;
(3) data acquisition and device manipulate whole robotization, fast response time;
(4) more accurate to the regulation and control of each device;
(5) make use of the processing power of mixing picking equipment to greatest extent.
Accompanying drawing explanation
The process flow diagram of the floatation process of Fig. 1 involved by the embodiment of the present invention;
Fig. 2 is the structured flowchart of the mixing featured goods level controlling system that the present invention relates to;
When Fig. 3 is not for using of the present invention, the product grade change curve that grade instrument records;
Fig. 4 is after using the present invention, the product grade change curve that grade instrument records.
Embodiment
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
The process flow diagram of the floatation process of Fig. 1 involved by the embodiment of the present invention.
As shown in Figure 1, in one preferred embodiment, its bulk flotation flow process is roughly as described below:
The ore pulp of ore grinding cyclone overflow enters cyclone mixing groove 1, after cyclone mixing groove 1 stirs, enter 320m
3flotation machine mixing roughing separation equipment, mixing roughing separation equipment 2 has four mixing and roughly selects flotation machine, and in height, it is one-level platform that flotation machine is roughly selected in every two mixing; Mixing is roughly selected a flotation machine and is floatingly selected the concentrate met the demands and directly enter and roughly select foam pump box 6, is transported to copper molybdenum mixing concentrator by foam pump; Mix the tank diameter 7 that the overflow product introduction diameter roughly selecting No. two, No. three, No. four flotation machine is 3.5m, the underflow ore pulp of mixing roughing separation equipment 2 enters mixing by drop and sweeps an equipment 3; Mixing is swept an equipment 3 and is had four mixing scavenging flotation machines, in height, every two mixing scavenging flotation machines are one-level platform, the overflow pulp that four mixing scavenging flotation machines of an equipment 3 are swept in mixing enters a foam pump box 8, roughly select a flotation machine in the mixing being turned back to mixing roughing separation equipment 2 by foam pump, the underflow ore pulp mixing an equipment 3 of sweeping enters mixing by drop and sweeps two equipment 4.It is identical that an equipment 3 is swept in the mixing arrangement of sweeping two equipment 4 and mixing, and the overflow pulp mixing two equipment 4 of sweeping enters No. two foam pump boxs 9, then turn back to mixing by foam pump and sweep an equipment 3.The underflow ore pulp mixing two equipment 4 of sweeping enters mixing by drop and sweeps three equipment 5; It is identical that an equipment 3 is swept in the mixing arrangement of sweeping three equipment 5 and mixing, and the overflow pulp that three equipment 5 are swept in mixing enters No. three foam pump boxs 10, then turn back to mixing by foam pump and sweep two equipment 4, and the underflow ore pulp mixing three equipment 5 of sweeping enters mine tailing.
Ore pulp in tank diameter 7 enters the single-minded flotation machine 11 of mixing by drop, mixes single-minded flotation machine 11 overflow pulp and enters smart two flotation machine 12 of mixing, mix single-minded flotation machine 11 underflow ore pulp and then turn back to a foam pump box 8, finally enter mixing roughing separation equipment 2; Mix smart two flotation machine 12 overflow pulp and enter smart three flotation machine 13 of mixing, mix smart two flotation machine 12 underflow ore pulps and then turn back to the single-minded flotation machine 11 of mixing; Mix smart three flotation machine 13 overflow pulp and enter selected foam pump box 14, be transported to the dehydration of copper molybdenum bulk concentrate concentrator by foam pump, obtain qualified copper molybdenum bulk concentrate, mix smart three flotation machine 13 underflow ore pulps and then turn back to smart two flotation machine 12 of mixing.
Each mixing of mixing roughing separation equipment 2 is roughly selected on gas ducting that flotation machine and mixing at different levels scan the mixing scavenging flotation machine of equipment and is provided with a typhoon flowmeter, a typhoon control valve door and a foam analysis instrument; Every one-level platform that equipment is scanned in mixing roughing separation equipment 2 and mixing at different levels being all provided with a floating ball lever meter, every one-level platform all being installed one for controlling the underflow valve of liquid level.Roughly select on foam pump box 6, tank diameter 7, foam pump box 8, No. two foam pump boxs 9, No. three foam pump boxs 10 and a ultrasonic level gage is respectively installed for detecting liquid level.
Mix single-minded flotation machine 11, mix smart two flotation machine 12, mix on smart three flotation machine 13 and a floating ball lever meter is installed respectively, a underflow valve.The wind flow of the mixing precision sorting flotation machine of mixing picking equipment at different levels is controlled by hand valve, calm flow detector.
Fig. 2 is the structured flowchart of the bulk flotation productive rate control system that the present invention relates to; It specifically forms and control planning is:
Human and machine interface unit, input the setup parameter about the selected grade of mixing wherein, described setup parameter comprises: with between the setting grade parameter region roughly selecting mixing that pump box is connected and roughly select the overflow product of a flotation machine, described mixing roughly select a flotation machine setting level parameter, mix picking equipment overflow product setting grade parameter region between, the aperture setup parameter of the underflow valve of mixing picking equipment at different levels;
Described setup parameter also comprises and is positioned at the level set parameter that No. three, No. four flotation machine are roughly selected in mixing that described mixing roughly selects a flotation machine next stage platform;
Detecting unit, be configured to detect the actual parameter about the selected grade of mixing, described actual parameter comprises: the actual product place value of the overflow product of the actual liquid level value that the actual product place value of the overflow product of a flotation machine is roughly selected in described mixing, a flotation machine is roughly selected in described mixing, mixing precision sorting flotation machine;
Described actual parameter also comprises the actual liquid level value that No. three, No. four flotation machine are roughly selected in described mixing;
Central data processing unit, intellectual analysis judgement is carried out after being configured to described actual parameter and described setup parameter directly to carry out to contrast or process, and according to analysis judged result, improve or reduce the setting level parameter that a flotation machine or mixing precision sorting flotation machine are roughly selected in mixing; And
Performance element, mixing is regulated to roughly select a flotation machine underflow valve, the actual liquid level value stabilization making mixing roughly select a flotation machine roughly selects the setting level parameter of a flotation machine in the mixing of setting, thus the actual product place value making mixing roughly select the overflow product of a flotation machine remains on mixing roughly selects in the grade parameter area of the overflow product of a flotation machine; Regulate the underflow valve opening of mixing precision sorting flotation machine, thus the actual product place value of the overflow product of mixing precision sorting flotation machine is remained in the grade parameter area of the overflow product of mixing precision sorting flotation machine.
The product place value of bulk concentrate measured in real time by ore grade analyzer, and these image data fed back to central data processing unit as important control reference frame.The product place value interval of the grade data detected according to on-stream analyzer for ore grade and the specification product of setting compares, on-line analysis, judgement, automatically each setup parameter of adjustment, ensures the selected output specification product of mixing.
Described mixing selected grade control method is divided into two processing sections: be solve mixing roughing separation equipment scrape output much larger than the control section of mixing picking equipment processing power or manual operation improper, with for solving the control section of the larger problem of mixing picking equipment overflow product grade fluctuation.
The problem of output much larger than mixing precision sorting flotation machine processing power is scraped for mixing roughing separation equipment, the product place value that mixing can be made to roughly select the volume production product that scrape of a flotation machine meets the grade requirement of ore concentrate, thus make mixing roughly select the volume production product that scrape of a flotation machine directly as final products, that effectively can improve that mixing roughly selects flotation like this scrapes output, and then improves the recovery.
According to the 320m that grade instrument detects
3mixing roughly select the product place value of a flotation machine overflow product, using the data of three of up-to-date detection grades as the foundation once controlling to adjust.When in three the grade data measured, there are two in 20-25% (the grade parameter area of artificial setting, the qualified grade of final products) scope, namely think that the overflow product of a flotation machine is roughly selected in mixing qualified, do not need to adjust.
When having two cut-off grade values 20% lower than setting in these three grade data at least, then the liquid level of mixing being roughly selected a flotation machine reduces 5mm, waits for grade instrument measurement data next time; If after measuring next time, in three grade data, still have two lower than 20%, then the liquid level of again mixing being roughly selected a flotation machine reduces 5mm, if having two in the scope of 20-25%, then keeps mixing the liquid level of roughly selecting a flotation machine constant; If in three grade data, there are two all the time lower than 20%, then continue to reduce the liquid level that a flotation machine is roughly selected in mixing, until the liquid level minimum of setting.
Otherwise, as in three grade data, when having two grade higher limits 25% higher than setting at least, then increase the liquid level 5mm that a flotation machine is roughly selected in mixing; Repeated measurement judges, until have two in the scope of 20-25% in three grade data, or extremely mixes the liquid level mxm. stopping that the liquid level of roughly selecting a flotation machine reaches setting.
To the overflow product grade control of mixing precision sorting flotation machine be:
Mixing picking equipment in the present embodiment comprises the single-minded flotation machine 11 of mixing, mixes smart two flotation machine 12, mixes smart three flotation machine 13.
First the maximal value and the minimum value that set the single-minded flotation machine 11 of mixing, mix smart two flotation machine 12, mix the underflow valve opening of smart three flotation machine 13.
According to the product place value of the overflow product of the mixing picking equipment of grade instrument detection, using the data of three of up-to-date detection grades as the foundation once controlling to adjust.When in three the grade data measured, there are two in the scope of 20-25%, then think that current system running status is good, do not make any adjustments.
When these 3 grade data, wherein any two not between 20-25%, system will make corresponding adjustment.When wherein having two lower than 20% and continuing 30 seconds, first by the corresponding increase by 2% of aperture of the underflow valve of smart two flotation machine 12 of mixing, increase the back amount of smart two flotation machine 12 of mixing to the single-minded flotation machine 11 of mixing, increase flotation time, overflow pulp grade can be improved.Wait for grade instrument measurement data next time, if after measuring next time, in three grade data, still two are had lower than 20%, then the underflow valve opening of smart two flotation machine 12 of mixing is increased by 2% again, if have two in three grade data in the scope of 20-25%, then keep the underflow valve opening of smart two flotation machine 12 of mixing constant; Wait for grade instrument measurement data next time, repeat comparing to determine and adjustment process above, until the underflow valve opening of smart two flotation machine 12 of mixing is adjusted to the highest limit of setting, now no longer the underflow valve of smart two flotation machine 12 of mixing is adjusted.
Then the underflow valve opening of smart three flotation machine 13 of adjustment mixing, increases 2% by its aperture.The underflow valve opening mixing smart three flotation machine 13 increases, and adds smart three flotation machine 13 of mixing to the back amount of smart two flotation machine 12 of mixing, increases flotation time, improve concentrate grade.Again wait for grade instrument measurement data, repeat comparing to determine and adjustment process above, until the underflow valve opening of smart three flotation machine 13 of mixing is adjusted to the highest limit of setting, now no longer the underflow valve of smart three flotation machine 13 of mixing is adjusted.
If now still have more than two lower than 20% in three substandard products bit data, then the underflow valve opening of the single-minded flotation machine 11 of adjustment mixing, increases by 2% at every turn, identical with control method above, until three underflow valves all reach maximal value.
Otherwise, if having more than two higher than 25% in three substandard products bit data, then first turn down the underflow valve mixing smart two flotation machine 12, turn down 2% at every turn, until the minimum of setting; Then repeat above-mentioned judgement and set-up procedure, turn down the underflow valve mixing smart three flotation machine 13, until minimum, the underflow valve of the single-minded flotation machine 11 of finally adjustment mixing is to minimum; If in adjustment process, there are more than two scopes meeting 20-25% in three grade data, then stop adjustment process, keep each underflow valve state constant.
If use in three grade data and have more than two lower than 20%, and the underflow valve of three grades of mixing precision sorting flotation machines has reached the highest limit of setting all, then No. three, flotation machine, the liquid level of No. four are roughly selected in adjustment mixing, its every 10min is made to reduce 5mm, improve from source and enter the grade mixing selected ore pulp, until be reduced to the liquid level lower bound of setting.
Otherwise, if use in three grade data and have more than two higher than 25%, and the underflow valve of three grades of mixing precision sorting flotation machines has reached the minimum of setting all, then the liquid level of No. three, No. four flotation machine is roughly selected in adjustment mixing, its every 10min is made to increase 5mm, until bring up to setting liquid level high limit.
When Fig. 3 is not for using of the present invention, the product grade change curve that grade instrument records; Fig. 4 is after using the present invention, the product grade change curve that grade instrument records.
Can find out, before using the present invention program, the grade fluctuation of concentrate is very large, causes concentrate grade too low or too high.And after using the present invention program, concentrate grade stability contorting, between the high lower bound of setting, ensure that concentrate product is qualified.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. mix a featured goods level controlling system, it is characterized in that, comprising:
Human and machine interface unit, input the setup parameter about the selected grade of mixing wherein, described setup parameter comprises: with roughly select the level set parameter that the grade parameter of the overflow product of a flotation machine is roughly selected in mixing, a flotation machine is roughly selected in described mixing that foam pump box is connected, mix precision sorting flotation machine overflow product grade setup parameter interval and mix the setting level parameter of precision sorting flotation machine;
Detecting unit, be configured to detect the actual parameter about the selected grade of mixing, described actual parameter comprises: the actual product place value of the overflow product of the actual liquid level value that the actual product place value of the overflow product of a flotation machine is roughly selected in described mixing, a flotation machine is roughly selected in described mixing and mixing precision sorting flotation machine;
Central data processing unit, intellectual analysis judgement is carried out after being configured to described actual parameter and described setup parameter directly to carry out to contrast or process, and according to analysis judged result, improve or reduce the setting level parameter that a flotation machine or mixing precision sorting flotation machine are roughly selected in mixing;
Performance element, mixing is regulated to roughly select the underflow valve of a flotation machine, the actual liquid level value stabilization making mixing roughly select a flotation machine roughly selects the setting level parameter of a flotation machine in set mixing, thus the actual product place value making mixing roughly select the overflow product of a flotation machine remain on mixing roughly select in the grade parameter area of the overflow product of a flotation machine; Regulate the underflow valve opening of mixing precision sorting flotation machine, thus the actual product place value of the overflow product of mixing precision sorting flotation machine is remained in the grade parameter area of the overflow product of mixing precision sorting flotation machine.
2. mixing featured goods level controlling system according to claim 1, it is characterized in that, described detecting unit detects the actual product place value that the overflow product of a flotation machine is roughly selected in mixing, by central data processing unit, it is compared with the grade setup parameter interval mixing the overflow product roughly selecting a flotation machine, in odd-times comparing result, during if any actual product place value more than half below or above the grade parameter minimum set or mxm., then reduce or improve the setting level parameter that a flotation machine is roughly selected in mixing, and regulate mixing to roughly select the underflow valve opening of a flotation machine, mixing is made to roughly select the actual liquid level value stabilization of a flotation machine at up-to-date setting level parameter, mixing is finally made to roughly select the actual product place value of the overflow product of a flotation machine in odd-times comparing result, there is result more than half in the grade parameter area of setting,
Described detecting unit detects the actual product place value of the overflow product of mixing precision sorting flotation machine, by central data processing unit, its grade setup parameter interval with the overflow product mixing precision sorting flotation machine is compared, in odd-times comparing result, during if any actual product place value more than half below or above the grade parameter minimum set or mxm., then increase or reduce the aperture parameter of the underflow valve that mixing precision sorting flotation machine sets, finally make the actual product place value of the overflow product of mixing precision sorting flotation machine in odd-times comparing result, there is result more than half in the grade parameter area of setting.
3. mixing featured goods level controlling system according to claim 2, is characterized in that, described mixing precision sorting flotation machine adopts multistage work flow;
When increasing or reduce the aperture parameter mixing the underflow valve that precision sorting flotation machine sets, first increase or reduce the aperture parameter of the underflow valve that smart two flotation machine of mixing set;
As mix smart two flotation machine settings the aperture parameter adjustment of underflow valve to maximal value or minimum value time, still there is the actual product place value of the overflow product of mixing precision sorting flotation machine more than half below or above the grade parameter minimum of overflow product of the mixing precision sorting flotation machine of setting or mxm., then increase or reduce the aperture parameter of underflow valve of the smart three flotation machine settings of mixing; According to above-mentioned judgement and method of adjustment, adjust the underflow valve opening parameter of subsequent stages mixing precision sorting flotation machine successively to afterbody mixing precision sorting flotation machine, the underflow valve opening parameter of the single-minded flotation machine of finally adjustment mixing;
When the actual product place value of the overflow product mixing precision sorting flotation machine has result more than half in the grade parameter area set in odd-times contrast, the parameter stability of all mixing precision sorting flotation machines is at currency.
4. mixing featured goods level controlling system according to claim 3, is characterized in that, described underflow valve opening parameter adopts the mode of substep adjustment, and often step increases or reduces the 2%-4% of underflow valve opening.
5. mixing featured goods level controlling system according to claim 3, it is characterized in that, described parameter also comprises the level set parameter that No. three flotation machine are roughly selected in mixing, No. four flotation machine are roughly selected in mixing being positioned at described mixing and roughly selecting a flotation machine next stage platform, and described actual parameter also comprises the actual liquid level value that No. three flotation machine are roughly selected in described mixing, No. four flotation machine are roughly selected in mixing.
6. mixing featured goods level controlling system according to claim 4, it is characterized in that, as as described in mixing precision sorting flotation machine, the equal adjusted of aperture parameter of the underflow valve of the setting of all mixing precision sorting flotation machines is to maximal value or minimum value, still there is the actual product place value of the overflow product of mixing picking equipment more than half below or above the grade parameter minimum of overflow product of the mixing precision sorting flotation machine of setting or mxm., then reduce or improve mixing and roughly select No. three flotation machine, the setting level parameter of No. four flotation machine is roughly selected in mixing, mixing is made to roughly select No. three flotation machine, mixing roughly selects the actual liquid level value stabilization of No. four flotation machine at up-to-date setting level parameter, thus make the actual product place value of the overflow product of mixing precision sorting flotation machine in odd-times comparing result, there is result more than half in the grade parameter area of setting.
7. mix a selected grade control method, it is characterized in that, comprising:
Foresee steps: input the setup parameter about the selected grade of mixing in human and machine interface unit, described setup parameter comprises: with roughly select the level set parameter that the grade parameter of the overflow product of a flotation machine is roughly selected in mixing, a flotation machine is roughly selected in described mixing that foam pump box is connected, mix precision sorting flotation machine overflow product grade setup parameter interval and mix the setting level parameter of precision sorting flotation machine;
Detecting step: utilize detecting unit detection about the actual parameter of the selected grade of mixing, described actual parameter comprises: the actual product place value of the overflow product of the actual liquid level value that the actual product place value of the overflow product of a flotation machine is roughly selected in described mixing, a flotation machine is roughly selected in described mixing and mixing precision sorting flotation machine;
Treatment step: central data processing unit, intellectual analysis judgement is carried out after being configured to described actual parameter and described setup parameter directly to carry out to contrast or process, and according to analysis judged result, improve or reduce the setting level parameter that a flotation machine or mixing precision sorting flotation machine are roughly selected in mixing;
Mix selected grade rate-determining steps: according to the analysis judged result of described CPU (central processing unit), improve or reduce mixing and roughly select the setting level parameter of a flotation machine, thus the actual product place value making mixing roughly select the overflow product of a flotation machine remains on mixing roughly selects in the grade parameter area of the overflow product of a flotation machine; Regulate the underflow valve opening of mixing precision sorting flotation machine, the actual liquid level parameter stability of mixing precision sorting flotation machine at setting level parameter, thus makes the actual product place value of the overflow product of mixing precision sorting flotation machine remain in the grade parameter area of the overflow product of mixing precision sorting flotation machine.
8. the selected grade control method of mixing according to claim 7, is characterized in that, the selected grade rate-determining steps of described mixing is:
Described detecting unit detects the actual product place value that the overflow product of a flotation machine is roughly selected in mixing, by central data processing unit, it is compared with the grade setup parameter interval mixing the overflow product roughly selecting a flotation machine, in odd-times comparing result, during if any actual product place value more than half below or above the grade parameter minimum set or mxm., then reduce or improve the setting level parameter that a flotation machine is roughly selected in mixing, regulate underflow valve opening, the actual liquid level value stabilization making mixing roughly select a flotation machine roughly selects the setting level parameter of a flotation machine in up-to-date mixing, mixing is finally made to roughly select the actual product place value of the overflow product of a flotation machine in odd-times comparing result, there is result more than half in the grade parameter area of setting,
Described detecting unit detects the actual product place value of the overflow product of mixing precision sorting flotation machine, by central data processing unit by its with mix precision sorting flotation machine overflow product setting grade parameter region between compare, in odd-times comparing result, during if any actual product place value more than half below or above the grade parameter minimum set or mxm., then increase or reduce the aperture parameter of the underflow valve that mixing precision sorting flotation machine sets, finally make the actual product place value of the overflow product of mixing precision sorting flotation machine in odd-times comparing result, there is result more than half in the grade parameter area of setting.
9. the selected grade control method of mixing according to claim 8, is characterized in that, described mixing precision sorting flotation machine adopts multistage work flow;
When increasing or reduce the aperture parameter mixing the underflow valve that precision sorting flotation machine sets, first increase or reduce the aperture parameter of the underflow valve that smart two flotation machine of mixing set;
As mix smart two flotation machine settings the aperture parameter adjustment of underflow valve to maximal value or minimum value time, still there is the actual product place value of the overflow product of mixing precision sorting flotation machine more than half below or above the grade parameter minimum of overflow product of the mixing precision sorting flotation machine of setting or mxm., then increase or reduce the aperture parameter of underflow valve of the smart three flotation machine settings of mixing; According to above-mentioned judgement and method of adjustment, adjust the underflow valve opening parameter of subsequent stages mixing precision sorting flotation machine successively to afterbody mixing precision sorting flotation machine, the underflow valve opening parameter of the single-minded flotation machine of finally adjustment mixing;
When the actual product place value of the overflow product mixing precision sorting flotation machine has result more than half in the grade parameter area set in odd-times contrast, the parameter stability of all mixing precision sorting flotation machines is at currency.
10. the selected grade control method of mixing according to claim 9, is characterized in that, the selected grade rate-determining steps of described mixing is:
When increasing or reduce the aperture parameter mixing the underflow valve that precision sorting flotation machine sets, first increase or reduce the aperture parameter of the underflow valve that smart two flotation machine of mixing set;
As mix smart two flotation machine settings the aperture parameter adjustment of underflow valve to maximal value or minimum value time, still there is the actual product place value of the overflow product of mixing precision sorting flotation machine more than half below or above the grade parameter minimum of overflow product of the mixing precision sorting flotation machine of setting or mxm., then increase or reduce the aperture parameter of underflow valve of the smart three flotation machine settings of mixing; According to above-mentioned judgement and method of adjustment, adjust the underflow valve opening parameter of subsequent stages mixing precision sorting flotation machine successively to afterbody mixing precision sorting flotation machine, the underflow valve opening parameter of the single-minded flotation machine of finally adjustment mixing; When the actual product place value of the overflow product mixing precision sorting flotation machine has result more than half in the grade parameter area set in odd-times contrast, all mixing precision sorting flotation machine parameter stabilities are at currency;
If the equal adjusted of aperture parameter of the underflow valve of the setting of all mixing precision sorting flotation machines is to maximal value or minimum value, still there is the actual product place value of the overflow product of mixing precision sorting flotation machine more than half below or above the grade parameter minimum of overflow product of the mixing precision sorting flotation machine of setting or mxm., then reduce or improve mixing and roughly select No. three flotation machine, the setting level parameter of No. four flotation machine is roughly selected in mixing, mixing is made to roughly select No. three flotation machine, the actual liquid level value stabilization that No. four flotation machine are roughly selected in mixing roughly selects No. three flotation machine in up-to-date mixing, the setting value of No. four flotation machine is roughly selected in mixing, thus make the actual product place value of the overflow product of mixing picking equipment in odd-times comparing result, there is result more than half in the grade parameter area of setting.
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