CN111054512B - Ore crushing and grinding parameter control method and device in SABC crushing and grinding process system - Google Patents
Ore crushing and grinding parameter control method and device in SABC crushing and grinding process system Download PDFInfo
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- CN111054512B CN111054512B CN201911285483.3A CN201911285483A CN111054512B CN 111054512 B CN111054512 B CN 111054512B CN 201911285483 A CN201911285483 A CN 201911285483A CN 111054512 B CN111054512 B CN 111054512B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
Abstract
The application discloses a method for controlling ore crushing and grinding parameters in an SABC crushing and grinding process system, which comprises the steps of measuring a first concentration of an ore product from the SABC crushing and grinding process system, and judging whether the first concentration exceeds a first normal concentration range; when the first concentration exceeds the first normal concentration range, measuring the first ore grinding concentration of the semi-autogenous mill, and judging whether the first ore grinding concentration exceeds a second normal concentration range; when the first ore grinding concentration exceeds the second normal concentration range, adjusting the water feeding amount of the semi-autogenous mill based on the difference between the first ore grinding concentration and the second normal concentration range. The application also discloses ore crushing and grinding parameter control device in the SABC crushing and grinding process system, and the method and the device can control ore crushing and grinding parameters in an all-round manner, do not need manual operation, improve the working efficiency and realize quick and accurate reaction.
Description
Technical Field
The invention belongs to the technical field of mineral separation, and particularly relates to a method and a device for controlling ore crushing and grinding parameters in an SABC crushing and grinding process system.
Background
At present, an SABC (sand face coal) crushing and grinding process system is mostly adopted in a large-scale nonferrous metal mine, wherein the biggest advantage is that the process flow is greatly simplified, but before ores enter the SABC crushing and grinding system, one-time coarse crushing is mostly adopted, namely the granularity range of the grinded ores is larger, and the requirement on the granularity control in the SABC crushing and grinding system is very high.
In the real-time adjustment of actual production process parameters, the traditional SABC grinding system mostly adopts treatment amount control and concentration control to control the ore granularity, carries out sectional treatment, needs control personnel to carry out real-time adjustment, and can adjust the ore granularity only after the final product has a problem, so that closed-loop control cannot be formed. The method has very high requirements on professional quality of control personnel, but in modern ore dressing plants with higher and higher requirements on automation degree, the method has lower efficiency, manual control is more difficult to realize quick and accurate reaction, and the adjustment effect can be seen only by observing for a period of time after adjustment, so the adjustment accuracy cannot be ensured.
Disclosure of Invention
In order to solve the problems, the invention provides the ore crushing and grinding parameter control method and the ore crushing and grinding parameter control device in the SABC crushing and grinding process system, which can control the ore crushing and grinding parameters in an all-around manner, do not need manual operation, improve the working efficiency and realize quick and accurate reaction.
The invention provides a method for controlling ore crushing and grinding parameters in an SABC crushing and grinding process system, which comprises the following steps:
measuring a first concentration of an ore product from the SABC mill process system, and determining whether the first concentration exceeds a first normal concentration range;
when the first concentration exceeds the first normal concentration range, measuring the first ore grinding concentration of the semi-autogenous mill, and judging whether the first ore grinding concentration exceeds a second normal concentration range;
when the first ore grinding concentration exceeds the second normal concentration range, adjusting the water feeding amount of the semi-autogenous mill based on the difference between the first ore grinding concentration and the second normal concentration range.
Preferably, in the method for controlling ore grinding parameters in the SABC grinding process system, the method further includes:
when the first ore grinding concentration is within the second normal concentration range, measuring the second ore grinding concentration of the ball mill, and judging whether the second ore grinding concentration exceeds a third normal concentration range;
and when the second ore grinding concentration exceeds the third normal concentration range, adjusting the water feeding amount of the ball mill based on the difference between the second ore grinding concentration and the third normal concentration range.
Preferably, in the method for controlling ore grinding parameters in the SABC grinding process system, the method further includes:
when the first concentration is within the first normal concentration range, measuring a first fineness of the ore product, and judging whether the first fineness exceeds a first normal fineness range;
when the first fineness exceeds the first fineness normal range, calculating the hard rock rate;
and when the hard rock rate exceeds a first preset upper limit, adjusting the ore feeding amount based on the hard rock rate.
Preferably, in the method for controlling ore grinding parameters in the SABC grinding process system, the method further includes:
when the obstinate rate does not exceed the first preset upper limit, measuring a second fineness of the undersize product, and judging whether the second fineness exceeds a second fineness normal range;
and when the second fineness exceeds the second fineness normal range, adjusting the ore feeding amount based on the second fineness.
Preferably, in the method for controlling ore grinding parameters in the SABC grinding process system, the method further includes:
when the second fineness is within the normal range of the second fineness, measuring a third fineness of ore discharge of the ball mill, and judging whether the third fineness is within the normal range of the third fineness;
when the third fineness exceeds the normal range of the third fineness, the number of the cyclone groups is adjusted;
measuring the first fineness of the ore product when the number of the cyclone groups does not exceed an upper limit.
The invention provides a device for controlling ore crushing and grinding parameters in an SABC crushing and grinding process system, which comprises:
the device comprises a first measuring component, a second measuring component and a third measuring component, wherein the first measuring component is used for measuring a first concentration of an ore product discharged from the SABC grinding process system and judging whether the first concentration exceeds a first normal concentration range;
the second measuring component is used for measuring the first ore grinding concentration of the semi-autogenous mill when the first concentration exceeds the first normal concentration range and judging whether the first ore grinding concentration exceeds a second normal concentration range;
a first adjusting component for adjusting the water feeding quantity of the semi-autogenous mill based on the difference between the first ore grinding concentration and the second normal concentration range when the first ore grinding concentration exceeds the second normal concentration range.
Preferably, in the above device for controlling ore grinding parameters in an SABC grinding process system, the device further comprises:
a third measuring means for measuring a second ore grinding concentration of the ball mill when the first ore grinding concentration is within the second normal concentration range, and judging whether the second ore grinding concentration exceeds a third normal concentration range;
and a second adjusting component for adjusting the water feeding amount of the ball mill based on the difference between the second ore grinding concentration and the third normal concentration range when the second ore grinding concentration exceeds the third normal concentration range.
Preferably, in the above device for controlling ore grinding parameters in an SABC grinding process system, the device further comprises:
a fourth measuring unit for measuring a first fineness of the ore product when the first concentration is within the first normal concentration range, and judging whether the first fineness exceeds a first normal fineness range;
first calculation means for calculating a hardrock rate when the first fineness exceeds the first fineness normal range;
and the third adjusting component is used for adjusting the ore feeding amount based on the hard rock rate when the hard rock rate exceeds a first preset upper limit.
Preferably, in the above device for controlling ore grinding parameters in an SABC grinding process system, the device further comprises:
the fifth measuring component is used for measuring the second fineness of the undersize product when the obstinate rock rate does not exceed the first preset upper limit, and judging whether the second fineness exceeds the second fineness normal range or not;
and the fourth adjusting component is used for adjusting the ore feeding amount based on the second fineness when the second fineness exceeds the second fineness normal range.
Preferably, in the above device for controlling ore grinding parameters in an SABC grinding process system, the device further comprises:
a sixth measuring unit configured to measure a third fineness of the ore discharge from the ball mill when the second fineness is within the second fineness normal range, and determine whether the third fineness is within a third fineness normal range;
and the fifth adjusting component is used for adjusting the number of the cyclone groups when the third fineness exceeds the normal range of the third fineness, and returning to utilize the fourth measuring component to measure the first fineness of the ore product when the number of the cyclone groups does not exceed the upper limit.
As can be seen from the above description, the method for controlling the ore crushing and grinding parameters in the SABC crushing and grinding process system according to the present invention includes measuring a first concentration of an ore product discharged from the SABC crushing and grinding process system, and determining whether the first concentration exceeds a first normal concentration range; then when the first concentration exceeds the first normal concentration range, measuring the first ore grinding concentration of the semi-autogenous mill, and judging whether the first ore grinding concentration exceeds a second normal concentration range; and finally, when the first ore grinding concentration exceeds the second normal concentration range, adjusting the water feeding amount of the semi-autogenous mill based on the difference between the first ore grinding concentration and the second normal concentration range, so that closed-loop automatic control is realized without manual participation, and the method can control ore crushing and grinding parameters in an all-round manner, does not need manual operation, improves the working efficiency and can realize quick and accurate reaction. The device provided by the invention has the same advantages as the method.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of a method for controlling ore crushing parameters in an SABC crushing process system according to the present application;
FIG. 2 is an overall flow chart of a method for controlling ore crushing parameters in the SABC crushing process system;
fig. 3 is a schematic diagram of a ore crushing and grinding parameter control device in an SABC crushing and grinding process system according to the present invention.
Detailed Description
The core of the invention is to provide the ore crushing and grinding parameter control method and the device in the SABC crushing and grinding process system, which can control the ore crushing and grinding parameters in an all-round way, do not need manual operation, improve the working efficiency and realize quick and accurate reaction.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic view of an embodiment of a method for controlling ore crushing parameters in an SABC crushing process system, where fig. 1 is a schematic view of the method for controlling ore crushing parameters in the SABC crushing process system, and the method includes the following steps:
s1: measuring a first concentration of an ore product from the SABC mill process system, and determining whether the first concentration exceeds a first normal concentration range;
specifically, referring to fig. 2, fig. 2 is a flowchart illustrating the overall method for controlling the ore grinding parameters in the SABC grinding process system, wherein the qualified product concentration C3 in fig. 2 is the first concentration of the ore product coming out of the SABC grinding process system, and the downward arrow indicates whether the C3 is in the first normal concentration range C4 and C5.
S2: when the first concentration exceeds a first normal concentration range, measuring the first ore grinding concentration of the semi-autogenous mill, and judging whether the first ore grinding concentration exceeds a second normal concentration range;
when C3 exceeds the range of C4-C5, the first ore grinding concentration C1 of the semi-autogenous mill is measured along the arrow to the left, and whether the C1 exceeds the second normal concentration range C6-C7 is judged by continuing to follow the arrow to the left.
S3: and when the first ore grinding concentration exceeds the second normal concentration range, adjusting the water feeding amount of the semi-autogenous mill based on the difference between the first ore grinding concentration and the second normal concentration range.
With continued reference to FIG. 2, when C1 exceeds the second normal concentration range, C6-C7, the feed water quantity to the semi-autogenous mill is adjusted by an optimum value, which is based on the difference between the first grinding concentration and the second normal concentration range, proceeding along the downward arrow.
As can be seen from the above description, in the embodiment of the method for controlling the ore crushing and grinding parameters in the SABC crushing and grinding process system provided by the present application, since the method includes measuring a first concentration of an ore product discharged from the SABC crushing and grinding process system, determining whether the first concentration exceeds a first normal concentration range; then when the first concentration exceeds a first normal concentration range, measuring the first ore grinding concentration of the semi-autogenous mill, and judging whether the first ore grinding concentration exceeds a second normal concentration range; finally, when the first ore grinding concentration exceeds the second normal concentration range, the water feeding amount of the semi-autogenous mill is adjusted based on the difference between the first ore grinding concentration and the second normal concentration range, so that closed-loop automatic control is realized without manual participation, and therefore the method can control ore crushing parameters in an all-around manner, manual operation is not needed, the working efficiency is improved, and quick and accurate reaction can be achieved.
In a specific embodiment of the method for controlling ore crushing parameters in the SABC crushing process system, the method further includes the following steps:
with continued reference to fig. 2, when the first ore concentration C1 is within the second normal concentration range C6-C7, the second ore concentration C of the ball mill is measured, and it is judged whether the second ore concentration C exceeds the third normal concentration range C8-C9;
when the second ore concentration C exceeds the third normal concentration range C8-C9, an optimum value is obtained based on the difference between the second ore concentration C and the third normal concentration range C8-C9, and the feed water amount of the ball mill is adjusted in accordance with the optimum value until the concentration is adjusted within the normal range.
In another specific embodiment of the method for controlling ore crushing parameters in the SABC crushing process system, the method may further include the following steps:
with continued reference to fig. 2, when the first concentration C3 is within the first normal concentration range C4-C5, measuring a first fineness of the ore product, which may be a product-200 mesh content C, along the direction of the right arrow, determining whether the first fineness C exceeds a first normal fineness range C1-C2;
when the first fineness c exceeds a first fineness normal range c1-c2, calculating a hard rock ratio P in a downward arrow direction, wherein W2 is the amount of oversize products (hard rock) and W1 is the ore feeding amount;
when the rock stubborn rate P exceeds a first preset upper limit P0, the ore feeding amount W1 is adjusted based on the rock stubborn rate.
In another specific embodiment of the method for controlling ore grinding parameters in the SABC grinding process system, the method further includes:
when the obstinate rate P does not exceed the first preset upper limit P0, measuring a second fineness of the undersize product, namely the minus 200-mesh content a of the undersize product in the figure 2, and judging whether the second fineness a exceeds a second fineness normal range a1-a 2;
when the second fineness a exceeds the second fineness normal range a1-a2, the ore feeding amount W1 is adjusted based on the second fineness 2, and if necessary, the rock retention rate is further adjusted to the normal range in combination with the measurement of the rock retention rate P.
In a preferred embodiment of the method for controlling ore crushing parameters in the SABC crushing process system, the method further includes:
when the second fineness a is within the second fineness normal range a1-a2, measuring a third fineness b of ore discharge of the ball mill, and judging whether the third fineness b is within a third fineness normal range b1-b 2;
when the third fineness b exceeds the normal range b1-b2 of the third fineness, the number n of the cyclone groups is adjusted;
when the number n of the cyclone groups does not exceed the upper limit n0, returning to continuously measure the first fineness c of the ore product, and controlling the ore granularity in a reciprocating manner, wherein it needs to be noted that when the third fineness b is in the normal range b1-b2 of the third fineness, technicians can be reminded to check the silicon controlled process parameters.
The above embodiment is further described with a specific operation example as follows:
aiming at the ore grinding system of the semi-autogenous mill, ores enter the semi-autogenous mill through a belt conveyor 1, are fed into a linear vibrating screen through an ore discharge box, oversize products enter a belt conveyor 2, and undersize products enter a slurry pump pool. A belt scale is arranged on a belt conveyor 1, the ore feeding amount W1 is measured, a flowmeter 1 is arranged at a water feeding pipe of a semi-autogenous mill, the water feeding flow Q1 is monitored, and the ore grinding concentration C3 is calculated to be W1/(W1+ Q1); the undersize ore pulp is gathered, a particle size measuring instrument is installed, the particle size of undersize products is measured, the content a of 200 meshes is measured, a belt scale is installed on the belt conveyor 2, the amount W2 of oversize products (hard rock) is measured, and therefore the hard rock rate P is W2/W1.
To the broken system of naughty stone, the naughty stone of two series semi-autogenous mill discharge gets into the surge bin through belt conveyor 2, and the feeder is settled to the surge bin below, and the feeder is according to surge bin material level, naughty stone rate size and belt conveyor and gives ore volume W1 size and adjust the ore volume size at any time, and naughty stone is broken through the breaker, changes into belt conveyor 1 through belt conveyor 3, and belt conveyor 3 is according to the naughty stone volume size, adjusts belt speed.
And (2) grading the ball mill and the cyclones, enabling the ore pulp in the slurry pump pool to enter a plurality of sets of cyclones for grading, enabling overflow products of the cyclones to be qualified products of ore granularity, entering a next ore sorting link, enabling settled sand of the cyclones to be unqualified products of ore granularity, entering the ball mill for regrinding, enabling the regrinding ores to enter the slurry pump pool, grading the ores through the plurality of sets of cyclones again, and circulating the steps until the products are qualified and entering the next link. A liquid level meter is arranged in the slurry pump pool, and a slurry pump keeps the slurry pump pool at a stable liquid level according to the liquid level meter and the conveying amount of the slurry pump; arranging a concentration tester and a granularity tester at an ore discharge port of the ball mill, and testing the concentration and granularity of the ore pulp, namely the content b of 200 meshes; a concentration tester and a particle size tester are arranged at an overflow port of the cyclone to test the concentration C3 of qualified products and the content C of ore with the particle size of-200 meshes; a flowmeter is arranged on a water supply pipe of the ball mill, the water supply quantity Q2 is measured, and the concentration of qualified products is calculated.
Fig. 3 is a schematic view of an embodiment of a device for controlling ore crushing and grinding parameters in an SABC crushing and grinding process system, where fig. 3 is a schematic view of the device for controlling ore crushing and grinding parameters in the SABC crushing and grinding process system, the device including:
the first measuring component 301 is used for measuring the first concentration of the ore product discharged from the SABC crushing and grinding process system and judging whether the first concentration exceeds a first normal concentration range, wherein the qualified product concentration is the first concentration of the ore product discharged from the SABC crushing and grinding process system;
a second measuring unit 302 for measuring a first grinding concentration of the semi-autogenous mill when the first concentration exceeds a first normal concentration range, and determining whether the first grinding concentration exceeds a second normal concentration range;
a first adjusting component 303, which is used for adjusting the water supply quantity of the semi-autogenous mill based on the difference between the first ore grinding concentration and the second normal concentration range when the first ore grinding concentration exceeds the second normal concentration range, namely adjusting the water supply quantity of the semi-autogenous mill according to the optimal value when the first ore grinding concentration exceeds the second normal concentration range, wherein the optimal value is obtained according to the difference between the first ore grinding concentration and the second normal concentration range.
Utilize above-mentioned device can the omnidirectional to control ore crushing and grinding parameter, need not manual operation, improve work efficiency, can accomplish quick accurate reaction moreover.
In an embodiment of the apparatus for controlling ore grinding parameters in the SABC grinding process system, the apparatus further includes:
the third measuring component is used for measuring the second ore grinding concentration of the ball mill when the first ore grinding concentration is in the second normal concentration range, and judging whether the second ore grinding concentration exceeds the third normal concentration range;
and a second adjusting means for adjusting the feed water amount of the ball mill based on a difference between the second ore concentration and the third normal concentration range when the second ore concentration exceeds the third normal concentration range, that is, obtaining an optimum value based on a difference between the second ore concentration and the third normal concentration range, and adjusting the feed water amount of the ball mill in accordance with the optimum value until the concentration is adjusted within the normal range.
In another specific embodiment of the apparatus for controlling ore grinding parameters in the SABC grinding process system, the apparatus further comprises:
a fourth measuring unit for measuring the first fineness of the ore product when the first concentration is within the first normal concentration range, and judging whether the first fineness exceeds the first normal fineness range;
first calculation means for calculating a hardstone rate P of W2/W1 when the first fineness exceeds the first fineness normal range, wherein W2 is an amount of oversize product (hardstone) and W1 is an ore feeding amount;
and third adjusting means for adjusting the ore feed amount W1 based on the rock retention rate when the rock retention rate exceeds the first preset upper limit P0.
In another specific embodiment of the apparatus for controlling ore grinding parameters in the SABC grinding process system, the apparatus further comprises:
fifth measuring means for measuring a second fineness of the undersize product, which may be an undersize product-200 mesh content a, when the hardstone rate does not exceed the first preset upper limit P0, judging whether the second fineness a exceeds a second fineness normal range a1-a 2;
and fourth adjusting means for adjusting the ore feeding amount based on the second fineness when the second fineness exceeds the second fineness normal range, and if necessary, continuing to adjust the hard rock rate to the normal range in combination with the measurement of the hard rock rate P.
In a preferred embodiment of the apparatus for controlling ore grinding parameters in the SABC grinding process system, the apparatus further comprises:
sixth measuring means for measuring a third fineness b of the ore discharged from the ball mill when the second fineness a is within the second fineness normal range a1-a2, and judging whether the third fineness b is within the third fineness normal range b1-b 2;
the fifth adjusting component is used for adjusting the number n of the cyclone groups when the third fineness b exceeds the third fineness normal range b1-b2, and returning to the step of measuring the first fineness c of the ore product by using the fourth measuring component when the number of the cyclone groups does not exceed the upper limit n0, so that the control of the ore granularity is realized in a reciprocating mode, and it needs to be noted that technicians can be reminded to check the silicon controlled process parameters when the third fineness b is within the third fineness normal range b1-b 2.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A method for controlling ore crushing and grinding parameters in an SABC crushing and grinding process system is characterized by comprising the following steps:
measuring a first concentration of an ore product from the SABC mill process system, and determining whether the first concentration exceeds a first normal concentration range;
when the first concentration exceeds the first normal concentration range, measuring the first ore grinding concentration of the semi-autogenous mill, and judging whether the first ore grinding concentration exceeds a second normal concentration range;
when the first ore grinding concentration exceeds the second normal concentration range, adjusting the water feeding amount of the semi-autogenous mill based on the difference between the first ore grinding concentration and the second normal concentration range;
when the first ore grinding concentration is within the second normal concentration range, measuring the second ore grinding concentration of the ball mill, and judging whether the second ore grinding concentration exceeds a third normal concentration range;
and when the second ore grinding concentration exceeds the third normal concentration range, adjusting the water feeding amount of the ball mill based on the difference between the second ore grinding concentration and the third normal concentration range.
2. The method for controlling ore crushing parameters in an SABC crushing process system according to claim 1, further comprising:
when the first concentration is within the first normal concentration range, measuring a first fineness of the ore product, and judging whether the first fineness exceeds a first normal fineness range;
when the first fineness exceeds the first fineness normal range, calculating the hard rock rate;
and when the hard rock rate exceeds a first preset upper limit, adjusting the ore feeding amount based on the hard rock rate.
3. The method of claim 2, further comprising:
when the obstinate rate does not exceed the first preset upper limit, measuring a second fineness of the undersize product, and judging whether the second fineness exceeds a second fineness normal range;
and when the second fineness exceeds the second fineness normal range, adjusting the ore feeding amount based on the second fineness.
4. The method of claim 3, further comprising:
when the second fineness is within the normal range of the second fineness, measuring a third fineness of ore discharge of the ball mill, and judging whether the third fineness is within the normal range of the third fineness;
when the third fineness exceeds the normal range of the third fineness, the number of the cyclone groups is adjusted;
measuring the first fineness of the ore product when the number of the cyclone groups does not exceed an upper limit.
5. A ore crushing and grinding parameter control device in an SABC crushing and grinding process system is characterized by comprising:
the device comprises a first measuring component, a second measuring component and a third measuring component, wherein the first measuring component is used for measuring a first concentration of an ore product discharged from the SABC grinding process system and judging whether the first concentration exceeds a first normal concentration range;
the second measuring component is used for measuring the first ore grinding concentration of the semi-autogenous mill when the first concentration exceeds the first normal concentration range and judging whether the first ore grinding concentration exceeds a second normal concentration range;
a first adjusting means for adjusting a feed water amount of the semi-autogenous mill based on a difference between the first ore grinding concentration and the second normal concentration range when the first ore grinding concentration exceeds the second normal concentration range;
a third measuring means for measuring a second ore grinding concentration of the ball mill when the first ore grinding concentration is within the second normal concentration range, and judging whether the second ore grinding concentration exceeds a third normal concentration range;
and a second adjusting component for adjusting the water feeding amount of the ball mill based on the difference between the second ore grinding concentration and the third normal concentration range when the second ore grinding concentration exceeds the third normal concentration range.
6. The apparatus for controlling ore comminution parameters in an SABC comminution process system as claimed in claim 5, further comprising:
a fourth measuring unit for measuring a first fineness of the ore product when the first concentration is within the first normal concentration range, and judging whether the first fineness exceeds a first normal fineness range;
first calculation means for calculating a hardrock rate when the first fineness exceeds the first fineness normal range;
and the third adjusting component is used for adjusting the ore feeding amount based on the hard rock rate when the hard rock rate exceeds a first preset upper limit.
7. The apparatus for controlling ore comminution parameters in an SABC comminution process system as claimed in claim 6, further comprising:
the fifth measuring component is used for measuring the second fineness of the undersize product when the obstinate rock rate does not exceed the first preset upper limit, and judging whether the second fineness exceeds the second fineness normal range or not;
and the fourth adjusting component is used for adjusting the ore feeding amount based on the second fineness when the second fineness exceeds the second fineness normal range.
8. The apparatus for controlling ore comminution parameters in an SABC comminution process system as claimed in claim 7, further comprising:
a sixth measuring unit configured to measure a third fineness of the ore discharge from the ball mill when the second fineness is within the second fineness normal range, and determine whether the third fineness is within a third fineness normal range;
and the fifth adjusting component is used for adjusting the number of the cyclone groups when the third fineness exceeds the normal range of the third fineness, and returning to utilize the fourth measuring component to measure the first fineness of the ore product when the number of the cyclone groups does not exceed the upper limit.
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| CN202061661U (en) * | 2011-01-25 | 2011-12-07 | 杨富森 | Automatic control system for mineral separation |
| CN104525360B (en) * | 2014-12-24 | 2017-04-05 | 中冶长天国际工程有限责任公司 | The method and apparatus of pulp density control during a kind of grind grading |
| CN104549718B (en) * | 2014-12-24 | 2017-04-19 | 中冶长天国际工程有限责任公司 | Method and device for controlling concentration of ore pulp in process of grinding and grading ore |
| CN104731005B (en) * | 2015-01-09 | 2017-07-11 | 山西太钢不锈钢股份有限公司 | A kind of semi-autogenous mill Poewr control method |
| CN107583755A (en) * | 2017-10-18 | 2018-01-16 | 丹东东方测控技术股份有限公司 | A kind of predictor method on semi-autogenous mill power |
| CN109482330B (en) * | 2018-11-02 | 2020-06-30 | 北矿智云科技(北京)有限公司 | Total water balance control method and device for SABC ore grinding |
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