CN105057080A - Swelling pre-judgment and control system and method for semi-autogenous mill - Google Patents
Swelling pre-judgment and control system and method for semi-autogenous mill Download PDFInfo
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Abstract
The invention relates to the technical field of mineral separation, in particular to a swelling pre-judgment and control system and method for a semi-autogenous mill. The swelling pre-judgment and control system comprises a human-computer interface unit, a detection unit, a central data processing unit and an execution unit, wherein setting parameters related to the swelling pre-judgment of the semi-autogenous mill are set in the human-computer interface unit; the detection unit detects actual parameters related to the swelling pre-judgment of the semi-autogenous mill in real time; the central data processing unit compares the actual parameters with the setting parameters directly or after processing the parameters so as to judge whether a swelling trend exists or not; and then the execution unit controls related actions to adjust the mineral feeding quantity and water feeding quantity of the semi-autogenous mill to prevent swelling. Through automatic control, the system can judge whether the semi-autogenous mill has a swelling trend in time, and make a judgment and adjustment as soon as possible when the semi-autogenous mill has a swelling sign but is not subjected to swelling, so that economic loss caused by swelling of the semi-autogenous mill due to improper operation is prevented.
Description
Technical field
The present invention relates to technical field of beneficiation, especially relate to a kind of semi-autogenous mill tripe that rises and judge in advance and control system and method.
Background technology
Ore grinding part is as ore dressing part very important part, and the quality of grinding operation index directly has influence on the quality of next stage beneficiation flowsheet floatation indicators.Therefore, the operation that semi-autogenous mill is stable has very important effect for mineral processing production.
Existing grinding flowsheet is roughly as follows:
Ore drops on ore pile after being rotated crusher in crushing, then is given on feeding belt by ore by the heavy plate feeder below ore pile.Ore enters semi-autogenous mill by Belt Conveying again, and the feeding end of semi-autogenous mill is provided with the Semi-Autogenous valve that adds water, and water and ore enter semi-autogenous mill, have steel ball in semi-autogenous mill, by the rotation of semi-autogenous mill by ore reduction, discharges from the exhaust end of semi-autogenous mill;
The exhaust end of semi-autogenous mill is provided with Semi-Autogenous flushing water valve, the ore pulp of discharging from the exhaust end of semi-autogenous mill carries out first time classification by straight line shaker, straight line shaker also has flushing water, and thick particle falls into passback belt by vibration on compass screen surface, then returns and enter semi-autogenous mill fragmentation;
The undersize of straight line shaker, enters Pulp pump pond, is transported to cyclone by Pulp pump, carries out second time classification; Qualified grade overflows and enters floatation system by cyclone, and coarse granule enters ball mill from the desilting mouth of cyclone, again grinds, and discharges afterwards from the exhaust end of ball mill.The exhaust end of ball mill is provided with flushing water, and the ore pulp that ball milling is discharged enters Pulp pump pond, and then enters cyclone classification.
Due to the generation that the operating personnel's misoperation in grinding process, Site Detection instrument fault, ore hardness lumpiness change, steel ball adds the problem such as not in time, occasional causes semi-autogenous mill to rise tripe phenomenon, is very disadvantageous for administration measure.
Under normal circumstances, the turnover slip of semi-autogenous mill is dynamic equilibrium substantially, and during the tripe that rises, grinding machine crushing effect reduces gradually, and cause the inner mineral aggregate of grinding machine to increase gradually, ore rotates with grinding machine, and grinding machine loses fragmentation and abrasive action.
Semi-autogenous mill rises after tripe, and the security of whole technique can be deteriorated, once careless manipulation, will cause security incident; Meanwhile, the tripe phenomenon that rises easily causes the wasting of resources, increases cost, once there be link to slip up, will cause the time-out of whole system, and then cause more serious economic loss.
Summary of the invention
The object of the present invention is to provide a kind of semi-autogenous mill tripe that rises to judge in advance and control system and method, to rise the generation of tripe phenomenon to prevent Semi-Autogenous equipment.
A kind of semi-autogenous mill provided by the invention tripe that rises judges and control system in advance, comprising:
Human and machine interface unit, input wherein and to rise the setup parameter that tripe judges in advance about semi-autogenous mill, described setup parameter comprises: the mine-supplying quantity setup parameter of semi-autogenous mill and allow the confluent setup parameter of the scope of fluctuation, semi-autogenous mill, the general power higher limit parameter of semi-autogenous mill, the jack-up upper pressure limit value parameter of semi-autogenous mill base bearing and the hard rock amount lower limit parameter from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end;
Detecting unit, be configured to detect and rise the actual parameter that tripe judges in advance about semi-autogenous mill, described actual parameter comprises: the actual power of the actual mine-supplying quantity of semi-autogenous mill, the actual confluent of semi-autogenous mill, semi-autogenous mill, the actual jack-up pressure of semi-autogenous mill base bearing and the actual hard rock amount from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end;
Central data processing unit, is configured to described actual parameter and described setup parameter directly to carry out intellectual analysis and judgement, and reduces the mine-supplying quantity setup parameter of semi-autogenous mill and allow the scope of fluctuation and the confluent setup parameter of raising semi-autogenous mill;
Performance element, according to analysis and the judged result of central data processing unit, reduce the mine-supplying quantity of semi-autogenous mill by reducing heavy plate frequency and improve the confluent of semi-autogenous mill by increasing Semi-Autogenous feed-water valve aperture, make the actual mine-supplying quantity of semi-autogenous mill in the allowable fluctuation range of the mine-supplying quantity parameter of the semi-autogenous mill of new settings, and make the actual power of semi-autogenous mill, the actual jack-up pressure of semi-autogenous mill base bearing, and higher limit or the lower limit of each parameter of setting is no more than respectively from the actual hard rock amount of semi-autogenous mill exhaust end loopback semi-autogenous mill feed end.
Preferably, described detecting unit detects the actual mine-supplying quantity of semi-autogenous mill, the actual power of semi-autogenous mill, the actual jack-up pressure of semi-autogenous mill base bearing and the actual hard rock amount from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end, it is compared with corresponding setup parameter by central data processing unit, when the actual mine-supplying quantity of semi-autogenous mill is in the allowable fluctuation range of the mine-supplying quantity parameter of semi-autogenous mill, and the actual jack-up pressure durations of the actual power of semi-autogenous mill and semi-autogenous mill base bearing rises or exceed the higher limit of setting, and from the actual hard rock amount continuous decrease of semi-autogenous mill exhaust end loopback semi-autogenous mill feed end or when exceeding the lower limit of setting, performance element is by reducing the mine-supplying quantity setup parameter of semi-autogenous mill and improving the confluent setup parameter of semi-autogenous mill, the actual mine-supplying quantity of semi-autogenous mill is made to adjust in the allowable fluctuation range of mine-supplying quantity parameter of the semi-autogenous mill of new settings, and make the actual power of semi-autogenous mill, the actual jack-up pressure of semi-autogenous mill base bearing, and higher limit or the lower limit of each parameter of setting is no more than respectively from the actual hard rock amount of semi-autogenous mill exhaust end loopback semi-autogenous mill feed end.
Preferably, the allowable fluctuation range of the mine-supplying quantity parameter of described semi-autogenous mill is 98% ~ 102% of the mine-supplying quantity parameter of the semi-autogenous mill of setting; The aggregate power parameters higher limit of described semi-autogenous mill is 105% of the aggregate power parameters of the semi-autogenous mill of setting; The higher limit of the jack-up pressure parameter of described semi-autogenous mill base bearing is 105% of the jack-up pressure parameter of the semi-autogenous mill base bearing of setting; The lower limit of the described hard rock amount parameter from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end is the hard rock amount parameter 90% from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end of setting.
Preferably, the described semi-autogenous mill tripe that rises judges and control system also comprises: the warning device be connected with described central data processing unit in advance.
Preferably, the actual mine-supplying quantity of described semi-autogenous mill is measured by the belt conveyer scale be arranged on the feeding belt of semi-autogenous mill feed end; The described actual hard rock amount from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end is measured by the belt conveyer scale be arranged on the loopback belt of semi-autogenous mill exhaust end.
A kind of semi-autogenous mill provided by the invention tripe that rises judges and control method in advance, comprising:
Foresee steps: input wherein and to rise the setup parameter that tripe judges in advance about semi-autogenous mill, described setup parameter comprises: the mine-supplying quantity setup parameter of semi-autogenous mill and allow the confluent setup parameter of the scope of fluctuation, semi-autogenous mill, the general power higher limit parameter of semi-autogenous mill, the jack-up upper pressure limit value parameter of semi-autogenous mill base bearing and the hard rock amount lower limit parameter from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end;
Detecting step: utilize detecting unit to detect and to rise the actual parameter that tripe judges in advance about semi-autogenous mill, described actual parameter comprises: the actual power of the actual mine-supplying quantity of semi-autogenous mill, the actual confluent of semi-autogenous mill, semi-autogenous mill, the actual jack-up pressure of semi-autogenous mill base bearing and the actual hard rock amount from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end;
Treatment step: the described actual parameter detected by described detecting unit is transferred to central data processing unit with the described setup parameter inputted by described human and machine interface unit, carries out intellectual analysis and judgement by described central data processing unit;
The semi-autogenous mill tripe that rises judges and rate-determining steps in advance: according to the analysis judged result of described CPU, judge whether semi-autogenous mill exists the tripe trend that rises; As semi-autogenous mill exists the tripe trend that rises, then reduce the mine-supplying quantity of semi-autogenous mill by performance element by reducing heavy plate frequency and improved the confluent of semi-autogenous mill by the aperture increasing Semi-Autogenous feed-water valve, make the actual mine-supplying quantity of semi-autogenous mill in the allowable fluctuation range of the mine-supplying quantity parameter of the semi-autogenous mill of new settings, and make the actual jack-up pressure of the actual power of semi-autogenous mill, semi-autogenous mill base bearing and be no more than higher limit or the lower limit of each parameter of setting from the actual hard rock amount of semi-autogenous mill exhaust end loopback semi-autogenous mill feed end respectively.
Preferably, the described semi-autogenous mill tripe that rises judges and in rate-determining steps in advance, judges that the method whether semi-autogenous mill exists the tripe trend that rises is:
The actual mine-supplying quantity of described detecting unit detection semi-autogenous mill, the actual confluent of semi-autogenous mill, the actual power of semi-autogenous mill, the actual jack-up pressure of semi-autogenous mill base bearing and the actual hard rock amount from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end, compared it with corresponding setup parameter by central data processing unit; When the actual mine-supplying quantity of semi-autogenous mill is in the allowable fluctuation range of the mine-supplying quantity parameter of semi-autogenous mill, and the actual jack-up pressure durations of the actual power of semi-autogenous mill and semi-autogenous mill base bearing rises or exceed the higher limit of setting, and from the actual hard rock amount continuous decrease of semi-autogenous mill exhaust end loopback semi-autogenous mill feed end or when exceeding the lower limit of setting, be then judged to be that semi-autogenous mill exists the tripe trend that rises.
Preferably, describedly judge whether semi-autogenous mill exists the tripe trend that rises, following four comparative results need be met simultaneously:
The actual mine-supplying quantity of semi-autogenous mill is within 98% ~ 102% of the mine-supplying quantity parameter of the semi-autogenous mill of setting;
The actual power of semi-autogenous mill, in 30min, continues 105% of the aggregate power parameters of the semi-autogenous mill rising or exceed setting;
The jack-up pressure of semi-autogenous mill base bearing, in 30min, continues 105% of the jack-up pressure parameter of the semi-autogenous mill base bearing rising or exceed setting;
From the actual hard rock amount of semi-autogenous mill exhaust end loopback semi-autogenous mill feed end in 30min, 90% of continuous decrease or the hard rock amount parameter from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end lower than setting.
Preferably, the described semi-autogenous mill tripe that rises judges and in rate-determining steps in advance, semi-autogenous mill exist rise tripe trend time, central data processing unit makes the mine-supplying quantity setup parameter of semi-autogenous mill reduce 20% of the mine-supplying quantity of the semi-autogenous mill of initial setting, and make the confluent setup parameter of semi-autogenous mill increase 10% of the confluent of the semi-autogenous mill of initial setting, again judge after 10min whether semi-autogenous mill exists the tripe trend that rises, if, the mine-supplying quantity setup parameter of semi-autogenous mill is then again made to reduce 20% of the mine-supplying quantity of the semi-autogenous mill of initial setting, and make the confluent setup parameter of semi-autogenous mill increase 10% of the confluent of the semi-autogenous mill of initial setting.
Preferably, the described semi-autogenous mill tripe that rises judges and in rate-determining steps in advance, mine-supplying quantity parameter as semi-autogenous mill reduces 40% of the mine-supplying quantity of the semi-autogenous mill of initial setting and after the confluent parameter of semi-autogenous mill adds 20% of the confluent of the semi-autogenous mill of initial setting, still there is the tripe trend that rises in semi-autogenous mill, then the mine-supplying quantity parameter adjustment of semi-autogenous mill is zero by central data processing unit.
Beneficial effect of the present invention is:
(1) the tripe trend that rises of semi-autogenous mill can be found timely, and when semi-autogenous mill has the sign of the tripe that rises, judge early and adjust, prevent because misoperation causes semi-autogenous mill to rise the economic loss of belly band;
(2) anticipation is accurate, adjustment process simple and fast;
(3) data acquisition and device manipulate whole automation, fast response time;
(4) generation of tripe phenomenon of having stopped to greatest extent to rise, while the stable operation of guarantee semi-autogenous mill, improves the stability of grinding system.
Accompanying drawing explanation
The schematic diagram of the grinding flowsheet of Fig. 1 involved by the embodiment of the present invention;
Fig. 2 is that the semi-autogenous mill that the present invention relates to tripe that rises judges and the schematic diagram of control system in advance.
Detailed description of the invention
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 schematic diagram of the grinding flowsheet of Fig. 1 involved by the embodiment of the present invention.
As shown in Figure 1, in one preferred embodiment, mine-feeding equipment is heavy plate feeder 1.Its grinding flowsheet is roughly as described below:
Ore is given on feeding belt 2 by heavy plate feeder 1, and measures actual mine-supplying quantity by belt conveyer scale 3.Ore delivers into semi-autogenous mill 5 by feeding belt 2 again, the feeding end of semi-autogenous mill 5 is provided with the Semi-Autogenous valve 4 that adds water, actual confluent is recorded by the Semi-Autogenous valve flowmeter 40 that adds water, water and ore enter semi-autogenous mill 5, steel ball is had in semi-autogenous mill 5, by the rotation of semi-autogenous mill 5 by ore reduction, discharge from the exhaust end of semi-autogenous mill 5;
The exhaust end of semi-autogenous mill 5 is provided with Semi-Autogenous flushing water valve 6, and actual confluent is recorded by Semi-Autogenous flushing water valve flowmeter 60; The ore pulp of discharging from the exhaust end of semi-autogenous mill 5 carries out first time classification by straight line shaker 7, straight line shaker 7 also there is flushing water, thick particle (hard rock) falls into loopback belt by vibration on compass screen surface, by loopback belt, hard rock is transmitted back to feeding belt 2 (not shown), again enters semi-autogenous mill 5 broken;
The undersize of straight line shaker 7, enters Pulp pump pond 8, and the actual liquid level in Pulp pump pond 8 is recorded by Pulp pump pit level meter 80, is transported to cyclone 10, carries out second time classification by Pulp pump 9; By regulating the technological parameter such as feed ore concentration, pressure, flow, work number, excess flow of cyclone 10, qualified grade overflows and enters floatation system by cyclone 10, coarse granule enters ball mill 11 from the desilting mouth of cyclone 10, again grind, discharge from the exhaust end of ball mill 11 afterwards.The exhaust end of ball mill 11 is provided with flushing water, and control confluent by controlling ball milling flushing water valve 12, actual confluent is recorded by ball milling flushing water valve flowmeter 120, and the ore pulp that ball milling is discharged enters Pulp pump pond 8, and then enters cyclone 10 classification.
The arrival end of cyclone 10 is provided with cyclone feed ore concentration detector 100, cyclone 10 is provided with cyclone Pressure gauge 103.
The pipeline that cyclone 10 overflow enters floatation system there is a cyclone excess flow meter 101, detects cyclone excess flow; Also have a particle size analyzer (cyclone overflow granularity instrument) 102 in addition for detecting cyclone overflow granularity and cyclone effluent concentration, and using important reference that cyclone overflow granularity and cyclone effluent concentration regulate as ore grinding.
Fig. 2 is that the semi-autogenous mill that the present invention relates to tripe that rises judges and the schematic diagram of control system in advance; It specifically forms and control planning is:
Human and machine interface unit, input wherein and to rise the setup parameter that tripe judges in advance about semi-autogenous mill, described setup parameter comprises: the mine-supplying quantity setup parameter of semi-autogenous mill and allow the confluent setup parameter of the scope of fluctuation, semi-autogenous mill, the general power higher limit parameter of semi-autogenous mill, the jack-up upper pressure limit value parameter of semi-autogenous mill base bearing and the hard rock amount lower limit parameter from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end;
Detecting unit, be configured to detect and rise the actual parameter that tripe judges in advance about semi-autogenous mill, described actual parameter comprises: the actual power of the actual mine-supplying quantity of semi-autogenous mill, the actual confluent of semi-autogenous mill, semi-autogenous mill, the actual jack-up pressure of semi-autogenous mill base bearing and the actual hard rock amount from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end;
Central data processing unit, is configured to described actual parameter and described setup parameter directly to carry out intellectual analysis and judgement, and reduces the mine-supplying quantity setup parameter of semi-autogenous mill and allow the scope of fluctuation and the confluent setup parameter of raising semi-autogenous mill;
Performance element, according to analysis and the judged result of central data processing unit, reduce the mine-supplying quantity of semi-autogenous mill by reducing heavy plate frequency and improve the confluent of semi-autogenous mill by increasing Semi-Autogenous feed-water valve aperture, make the actual mine-supplying quantity of semi-autogenous mill in the allowable fluctuation range of the mine-supplying quantity parameter of the semi-autogenous mill of new settings, and make the actual power of semi-autogenous mill, the actual jack-up pressure of semi-autogenous mill base bearing, and higher limit or the lower limit of each parameter of setting is no more than respectively from the actual hard rock amount of semi-autogenous mill exhaust end loopback semi-autogenous mill feed end.
The semi-autogenous mill that the present embodiment is selected is
the large-sized grinder of rice, milling capacity per hour 1850 tons.Therefore, semi-autogenous mill rise the generation of tripe for production, equipment is all very disadvantageous.When the equal normal operation of heavy plate feeder, feeding belt, loopback belt, semi-autogenous mill, judge that semi-autogenous mill exists the tripe trend that rises and need meet following several testing results simultaneously:
(1) the actual mine-supplying quantity of semi-autogenous mill is within 98% ~ 102% of the mine-supplying quantity parameter of the semi-autogenous mill of setting, is detected by the belt conveyer scale on feeding belt;
(2) actual power of semi-autogenous mill is in 30min, continues 105% of the aggregate power parameters of the semi-autogenous mill rising or exceed setting;
(3) the jack-up pressure of semi-autogenous mill base bearing is in 30min, continues 105% of the jack-up pressure parameter of the semi-autogenous mill base bearing rising or exceed setting;
(4) from the actual hard rock amount of semi-autogenous mill exhaust end loopback semi-autogenous mill feed end in 30min, continuous decrease or lower than setting the hard rock amount parameter from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end 90%, by loopback belt belt conveyer scale detect.
The actual power of the actual mine-supplying quantity of above-mentioned semi-autogenous mill, the actual confluent of semi-autogenous mill, semi-autogenous mill, the actual jack-up pressure of semi-autogenous mill base bearing and read in real time by central data processing unit by instrument Real-Time Monitoring from the actual hard rock amount quadrinomial parameter of semi-autogenous mill exhaust end loopback semi-autogenous mill feed end, in 30min, every measured value real-time update.
When meeting above-mentioned semi-autogenous mill and there is the condition of the tripe trend that rises, the semi-autogenous mill tripe that rises judges and control system produces warning automatically in advance, and the mine-supplying quantity parameter (1850t/h) of the semi-autogenous mill of setting is benchmark during normally to work, the mine-supplying quantity of automatic reduction by 20%, and the confluent 10% improving semi-autogenous mill; After 10min, again judge according to above-mentioned 4 measured values, if still there is the tripe trend that rises, then continues 20% of the mine-supplying quantity parameter of the semi-autogenous mill set when reducing normal work, and improve the confluent 10% of semi-autogenous mill; After 10min, again judge according to above-mentioned 4 measured values, if still there is the tripe trend that rises, now have the tripe trend that rises more than 50min, the semi-autogenous mill tripe trend that rises is comparatively serious, and now the mine-supplying quantity parameter of semi-autogenous mill is dropped to zero by semi-autogenous mill the rise anticipation of tripe trend and control system automatically, stop to ore deposit, and again producing warning, prompting Central Control Room operating personnel judge, to process in time.
The mine-supplying quantity of semi-autogenous mill is regulated by the frequency adjusting heavy plate feeder, and the confluent of semi-autogenous mill is regulated by the aperture adjusting Semi-Autogenous flushing water valve.
The present invention can find the tripe trend that rises of semi-autogenous mill timely, and when semi-autogenous mill has the trend of the tripe that rises, adjusts early, prevents because misoperation causes semi-autogenous mill to rise the economic loss of belly band.
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. the semi-autogenous mill tripe that rises judges and a control system in advance, it is characterized in that, comprising:
Human and machine interface unit, input wherein and to rise the setup parameter that tripe judges in advance about semi-autogenous mill, described setup parameter comprises: the mine-supplying quantity setup parameter of semi-autogenous mill and allow the confluent setup parameter of the scope of fluctuation, semi-autogenous mill, the general power higher limit parameter of semi-autogenous mill, the jack-up upper pressure limit value parameter of semi-autogenous mill base bearing and the hard rock amount lower limit parameter from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end;
Detecting unit, be configured to detect and rise the actual parameter that tripe judges in advance about semi-autogenous mill, described actual parameter comprises: the actual power of the actual mine-supplying quantity of semi-autogenous mill, the actual confluent of semi-autogenous mill, semi-autogenous mill, the actual jack-up pressure of semi-autogenous mill base bearing and the actual hard rock amount from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end;
Central data processing unit, is configured to described actual parameter and described setup parameter directly to carry out intellectual analysis and judgement, and reduces the mine-supplying quantity setup parameter of semi-autogenous mill and allow the scope of fluctuation and the confluent setup parameter of raising semi-autogenous mill;
Performance element, according to analysis and the judged result of central data processing unit, reduce the mine-supplying quantity of semi-autogenous mill by reducing heavy plate frequency and improve the confluent of semi-autogenous mill by increasing Semi-Autogenous feed-water valve aperture, make the actual mine-supplying quantity of semi-autogenous mill in the allowable fluctuation range of the mine-supplying quantity parameter of the semi-autogenous mill of new settings, and make the actual power of semi-autogenous mill, the actual jack-up pressure of semi-autogenous mill base bearing, and higher limit or the lower limit of each parameter of setting is no more than respectively from the actual hard rock amount of semi-autogenous mill exhaust end loopback semi-autogenous mill feed end.
2. the semi-autogenous mill according to claim 1 tripe that rises judges and control system in advance, it is characterized in that, described detecting unit detects the actual mine-supplying quantity of semi-autogenous mill, the actual power of semi-autogenous mill, the actual jack-up pressure of semi-autogenous mill base bearing and the actual hard rock amount from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end, it is compared with corresponding setup parameter by central data processing unit, when the actual mine-supplying quantity of semi-autogenous mill is in the allowable fluctuation range of the mine-supplying quantity parameter of semi-autogenous mill, and the actual jack-up pressure durations of the actual power of semi-autogenous mill and semi-autogenous mill base bearing rises or exceed the higher limit of setting, and from the actual hard rock amount continuous decrease of semi-autogenous mill exhaust end loopback semi-autogenous mill feed end or when exceeding the lower limit of setting, performance element is by reducing the mine-supplying quantity setup parameter of semi-autogenous mill and improving the confluent setup parameter of semi-autogenous mill, the actual mine-supplying quantity of semi-autogenous mill is made to adjust in the allowable fluctuation range of mine-supplying quantity parameter of the semi-autogenous mill of new settings, and make the actual power of semi-autogenous mill, the actual jack-up pressure of semi-autogenous mill base bearing, and higher limit or the lower limit of each parameter of setting is no more than respectively from the actual hard rock amount of semi-autogenous mill exhaust end loopback semi-autogenous mill feed end.
3. the semi-autogenous mill according to claim 1 tripe that rises judges and control system in advance, it is characterized in that, the allowable fluctuation range of the mine-supplying quantity parameter of described semi-autogenous mill is 98% ~ 102% of the mine-supplying quantity parameter of the semi-autogenous mill of setting; The aggregate power parameters higher limit of described semi-autogenous mill is 105% of the aggregate power parameters of the semi-autogenous mill of setting; The higher limit of the jack-up pressure parameter of described semi-autogenous mill base bearing is 105% of the jack-up pressure parameter of the semi-autogenous mill base bearing of setting; The lower limit of the described hard rock amount parameter from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end is the hard rock amount parameter 90% from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end of setting.
4. the semi-autogenous mill according to claim 1 tripe that rises judges and control system in advance, it is characterized in that, also comprises the warning device be connected with described central data processing unit.
5. the semi-autogenous mill according to claim 1 tripe that rises judges and control system in advance, it is characterized in that, the actual mine-supplying quantity of described semi-autogenous mill is measured by the belt conveyer scale be arranged on the feeding belt of semi-autogenous mill feed end; The described actual hard rock amount from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end is measured by the belt conveyer scale be arranged on the loopback belt of semi-autogenous mill exhaust end.
6. the semi-autogenous mill tripe that rises judges and a control method in advance, it is characterized in that, comprising:
Foresee steps: input wherein and to rise the setup parameter that tripe judges in advance about semi-autogenous mill, described setup parameter comprises: the mine-supplying quantity setup parameter of semi-autogenous mill and allow the confluent setup parameter of the scope of fluctuation, semi-autogenous mill, the general power higher limit parameter of semi-autogenous mill, the jack-up upper pressure limit value parameter of semi-autogenous mill base bearing and the hard rock amount lower limit parameter from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end;
Detecting step: utilize detecting unit to detect and to rise the actual parameter that tripe judges in advance about semi-autogenous mill, described actual parameter comprises: the actual power of the actual mine-supplying quantity of semi-autogenous mill, the actual confluent of semi-autogenous mill, semi-autogenous mill, the actual jack-up pressure of semi-autogenous mill base bearing and the actual hard rock amount from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end;
Treatment step: the described actual parameter detected by described detecting unit is transferred to central data processing unit with the described setup parameter inputted by described human and machine interface unit, carries out intellectual analysis and judgement by described central data processing unit;
The semi-autogenous mill tripe that rises judges and rate-determining steps in advance: according to the analysis judged result of described CPU, judge whether semi-autogenous mill exists the tripe trend that rises; As semi-autogenous mill exists the tripe trend that rises, then reduce the mine-supplying quantity of semi-autogenous mill by performance element by reducing heavy plate frequency and improved the confluent of semi-autogenous mill by the aperture increasing Semi-Autogenous feed-water valve, make the actual mine-supplying quantity of semi-autogenous mill in the allowable fluctuation range of the mine-supplying quantity parameter of the semi-autogenous mill of new settings, and make the actual jack-up pressure of the actual power of semi-autogenous mill, semi-autogenous mill base bearing and be no more than higher limit or the lower limit of each parameter of setting from the actual hard rock amount of semi-autogenous mill exhaust end loopback semi-autogenous mill feed end respectively.
7. the semi-autogenous mill according to claim 6 tripe that rises judges and control method in advance, it is characterized in that, the described semi-autogenous mill tripe that rises judges and in rate-determining steps in advance, judges that the method whether semi-autogenous mill exists the tripe trend that rises is:
The actual mine-supplying quantity of described detecting unit detection semi-autogenous mill, the actual confluent of semi-autogenous mill, the actual power of semi-autogenous mill, the actual jack-up pressure of semi-autogenous mill base bearing and the actual hard rock amount from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end, compared it with corresponding setup parameter by central data processing unit; When the actual mine-supplying quantity of semi-autogenous mill is in the allowable fluctuation range of the mine-supplying quantity parameter of semi-autogenous mill, and the actual jack-up pressure durations of the actual power of semi-autogenous mill and semi-autogenous mill base bearing rises or exceed the higher limit of setting, and from the actual hard rock amount continuous decrease of semi-autogenous mill exhaust end loopback semi-autogenous mill feed end or when exceeding the lower limit of setting, be then judged to be that semi-autogenous mill exists the tripe trend that rises.
8. the semi-autogenous mill according to claim 7 tripe that rises judges and control method in advance, it is characterized in that, describedly judges whether semi-autogenous mill exists the tripe trend that rises, and need meet following four comparative results simultaneously:
The actual mine-supplying quantity of semi-autogenous mill is within 98% ~ 102% of the mine-supplying quantity parameter of the semi-autogenous mill of setting;
The actual power of semi-autogenous mill, in 30min, continues 105% of the aggregate power parameters of the semi-autogenous mill rising or exceed setting;
The jack-up pressure of semi-autogenous mill base bearing, in 30min, continues 105% of the jack-up pressure parameter of the semi-autogenous mill base bearing rising or exceed setting;
From the actual hard rock amount of semi-autogenous mill exhaust end loopback semi-autogenous mill feed end in 30min, 90% of continuous decrease or the hard rock amount parameter from semi-autogenous mill exhaust end loopback semi-autogenous mill feed end lower than setting.
9. the semi-autogenous mill according to claim 6 tripe that rises judges and control method in advance, it is characterized in that, the described semi-autogenous mill tripe that rises judges and in rate-determining steps in advance, semi-autogenous mill exist rise tripe trend time, central data processing unit makes the mine-supplying quantity setup parameter of semi-autogenous mill reduce 20% of the mine-supplying quantity of the semi-autogenous mill of initial setting, and make the confluent setup parameter of semi-autogenous mill increase 10% of the confluent of the semi-autogenous mill of initial setting, again judge after 10min whether semi-autogenous mill exists the tripe trend that rises, if, the mine-supplying quantity setup parameter of semi-autogenous mill is then again made to reduce 20% of the mine-supplying quantity of the semi-autogenous mill of initial setting, and make the confluent setup parameter of semi-autogenous mill increase 10% of the confluent of the semi-autogenous mill of initial setting.
10. the semi-autogenous mill according to claim 9 tripe that rises judges and control method in advance, it is characterized in that, the described semi-autogenous mill tripe that rises judges and in rate-determining steps in advance, mine-supplying quantity parameter as semi-autogenous mill reduces 40% of the mine-supplying quantity of the semi-autogenous mill of initial setting and after the confluent parameter of semi-autogenous mill adds 20% of the confluent of the semi-autogenous mill of initial setting, still there is the tripe trend that rises in semi-autogenous mill, then the mine-supplying quantity parameter adjustment of semi-autogenous mill is zero by central data processing unit.
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