CN103480465B

CN103480465B - The method and apparatus that a kind of ore mill feed ore concentration controls

Info

Publication number: CN103480465B
Application number: CN201310487216.0A
Authority: CN
Inventors: 李宗平; 孙英
Original assignee: Zhongye Changtian International Engineering Co Ltd
Current assignee: Zhongye Changtian International Engineering Co Ltd
Priority date: 2013-10-17
Filing date: 2013-10-17
Publication date: 2015-08-19
Anticipated expiration: 2033-10-17
Also published as: CN103480465A

Abstract

This application discloses the method and apparatus that a kind of ore mill feed ore concentration controls.Described method comprises: obtain the current main shaft oil pressure of ore mill and power, and belonging to described main shaft oil pressure magnitude of power scope belonging to oil pressure number range and described power, determine the oil pressure state that ore mill is current and power rating; Be in high oil pressure state and high power state in response to described ore mill is current simultaneously, reduce the feed ore concentration of described ore mill; Be in low oil pressure state and low power state in response to described ore mill is current simultaneously, improve the feed ore concentration of described ore mill.By the technical scheme of the application, can realize, feed ore concentration is reduced when ore mill load condition is higher, to reduce the load of ore mill and to make mineral aggregate pulverize more fully, feed ore concentration is improved when ore mill load condition is on the low side, thus improve output and the efficiency of grinding process, reduce the energy consumption of unit ton concentrate.

Description

The method and apparatus that a kind of ore mill feed ore concentration controls

Technical field

The application relates to ore smelting control field, particularly relates to the method and apparatus that a kind of ore mill feed ore concentration controls.

Background technology

In the production process of ore smelting, owing to digging up mine, the raw ore ore obtained does not reach smelting requirements, needs first to carry out ore dressing to raw ore ore, thus obtains the concentrate meeting smelting requirements, be used further to smelting process.The links such as ore-dressing practice mainly comprises crushing and screening, grind grading to raw ore ore, sorts, essence mine dehydration.Wherein, grinding process is by the ore grinding of fragmentation to suitable granularity, and the mineral pulverized are supplied to the process of sorting.In grinding process, because ore is pulverized, effective mineralogical composition can dissociate out from gangue, and different effective mineralogical composition is dissociated mutually.Grinding operation is to provide the critical process sorting raw material, to the control situation of grinding process, whether the granularity directly having influence on ore milling product can be reached suitable granularity, and then impact sorts the quality of process and dressing product.

See Fig. 1, show the course of work of ore mill in a kind of grinding process.Mineral aggregate and water are mixed to ore mill by input respectively, after the pulverizing of ore mill, export pump pond to again.Wherein, the live load of ore mill affects quality and the production efficiency of product in grinding operation process: when ore mill load is too high, and ore mill is pulverized mineral aggregate will be abundant not, and the granularity of ore milling product is excessive, thus makes product quality not reach requirement; When ore mill load is too low, the speed of ore mill process mineral aggregate is excessively slow, thus the production efficiency of ore milling product is reduced.Visible, be the key that whole grinding process controls to the spatial load forecasting of ore mill.

In grinding process, the feed ore concentration (namely throwing in the mineral aggregate quantity to ore mill and the ratio throwing in mineral aggregate and water number amount summation) of ore mill is one of principal element affecting ore mill load.Usually, feed ore concentration improves, and ore mill load increases, and the speed of production of product is accelerated, and feed ore concentration reduces, and ore mill load reduces, and the speed of production of product slows down.But in the prior art, the control procedure of ore mill load is not but regulated to the control of feed ore concentration, but adopt changeless feed ore concentration in whole grinding process, this fixing feed ore concentration and ore mill normal duty state adapt.Because the feed ore concentration of ore mill correspondingly can not change according to the load height of ore mill, when the load condition of ore mill does not belong to normal, the feed ore concentration of ore mill just can not adapt to the load condition of ore mill; When the load condition of ore mill is higher, the lump ore of grinding machine inside and the throwing of steel ball are pounded and are ground abundant not, and the grinding efficiency of grinding machine does not reach requirement, and when the load condition of ore mill is on the low side, the processing speed of raw ore will decline, and the ore handling capacity of grinding machine reduces.

Summary of the invention

Technical problems to be solved in this application are, there is provided the method and apparatus that a kind of ore mill feed ore concentration controls, when the ore mill load condition caused to solve the changeless feed ore concentration of employing conventionally departs from normal, grinding efficiency does not reach the technical problem of requirement and ore handling capacity reduction.

For solving the problems of the technologies described above, the embodiment of the present application provides a kind of method that ore mill feed ore concentration controls, and the method comprises:

Obtain the current main shaft oil pressure value of ore mill and performance number, and belonging to described main shaft oil pressure value magnitude of power scope belonging to oil pressure number range and described performance number, determine the oil pressure state that ore mill is current and power rating, wherein, if described main shaft oil pressure value is less than or equal to the first oil pressure threshold value, described ore mill is current is in low oil pressure state, if described main shaft oil pressure value is less than the second oil pressure threshold value and be greater than the first oil pressure threshold value, described ore mill is current is in reasonable oil pressure state, if described main shaft oil pressure value is more than or equal to the second oil pressure threshold value, described ore mill is current is in high oil pressure state, if described performance number is less than or equal to the first power threshold, described ore mill is current is in low power state, if described performance number is less than the second power threshold and be greater than the first power threshold, described ore mill is current is in reasonable power rating, if described performance number is more than or equal to the second power threshold, described ore mill is current is in high power state, wherein, described second oil pressure threshold value is greater than described first oil pressure threshold value, described second power threshold is greater than described first power threshold,

Be in high oil pressure state and high power state in response to described ore mill is current simultaneously, reduce the feed ore concentration of described ore mill;

Be in low oil pressure state and low power state in response to described ore mill is current simultaneously, improve the feed ore concentration of described ore mill.

Optionally, also comprise:

The corresponding relation of the feed ore concentration of more described ore mill and upper limit of concentration value, concentration limit value; Described upper limit of concentration value is greater than described concentration limit value;

Be greater than described upper limit of concentration value in response to described feed ore concentration, described feed ore concentration is adjusted to described upper limit of concentration value;

Be less than described concentration limit value in response to described feed ore concentration, described feed ore concentration is adjusted to described concentration limit value.

Optionally, also comprise:

Be in higher load condition in response to described ore mill is current, reduce the mine-supplying quantity of described ore mill; Described higher load condition comprises: described ore mill is current is in high oil pressure state and high power state simultaneously, described ore mill is current is in high oil pressure state and reasonable power rating simultaneously, with, described ore mill is current is in reasonable oil pressure state and high power state simultaneously;

Be in low load condition in response to described ore mill is current, increase the mine-supplying quantity of described ore mill; Described low load condition comprises: described ore mill is current is in low oil pressure state and low power state simultaneously, described ore mill is current is in low oil pressure state and reasonable power rating simultaneously, with, described ore mill is current is in reasonable oil pressure state and low power state simultaneously.

Optionally, also comprise: obtain the mill sound-like state value that ore mill is current, and grind the current mill sound-like state of sound number range determination ore mill belonging to described mill sound-like state value; Wherein, if described mill sound-like state value is less than or equal to the first mill sound threshold value, described ore mill is current is in low mill sound-like state, if described mill sound-like state value is less than the second mill sound threshold value and be greater than the first mill sound threshold value, described ore mill is current is in rationally mill sound-like state, if described mill sound-like state value is more than or equal to the second mill sound threshold value, described ore mill is current is in high mill sound-like state, wherein, described second mill sound threshold value is greater than described first mill sound threshold value;

Describedly be in higher load condition in response to described ore mill is current, reduce the mine-supplying quantity of described ore mill, comprising: be in the first higher load condition in response to described ore mill, the mine-supplying quantity of described ore mill is reduced the first regulated quantity; Be in the second higher load condition in response to described ore mill, the mine-supplying quantity of described ore mill is reduced the second regulated quantity;

Wherein, the second regulated quantity is less than the first regulated quantity; Described first higher load condition comprises: described ore mill is current is in rationally mill sound-like state, high oil pressure state and high power state simultaneously, and described ore mill is current is in low mill sound-like state, high oil pressure state and high power state simultaneously; Described second higher load condition is other higher load conditions except described first higher load condition;

Describedly be in low load condition in response to described ore mill is current, increase the mine-supplying quantity of described ore mill, comprising: be in the first low load condition in response to described ore mill, the mine-supplying quantity of described ore mill is increased the 3rd regulated quantity; Be in the second low load condition in response to described ore mill, the mine-supplying quantity of described ore mill is increased the 4th regulated quantity;

Wherein, the 4th regulated quantity is less than the 3rd regulated quantity; Described first low load condition comprises: described ore mill is current is in rationally mill sound-like state, low oil pressure state and low power state simultaneously, described ore mill is current is in low mill sound-like state, low oil pressure state and reasonable power rating simultaneously, described ore mill is current is in low mill sound-like state, rationally oil pressure state and low power state simultaneously, with, described ore mill is current is in low mill sound-like state, low oil pressure state and low power state simultaneously; Described second low load condition is other low load condition except described first low load condition.

Optionally, also comprise:

Obtain the mill sound-like state value that ore mill is current, and grind the current mill sound-like state of sound number range determination ore mill belonging to described mill sound-like state value; Wherein, if described mill sound-like state value is less than or equal to the first mill sound threshold value, described ore mill is current is in low mill sound-like state, if described mill sound-like state value is less than the second mill sound threshold value and be greater than the first mill sound threshold value, described ore mill is current is in rationally mill sound-like state, if described mill sound-like state value is more than or equal to the second mill sound threshold value, described ore mill is current is in high mill sound-like state, wherein, described second mill sound threshold value is greater than described first mill sound threshold value;

Be in high mill sound-like state, rationally oil pressure state and reasonable power rating in response to described ore mill is current simultaneously, the mine-supplying quantity of described ore mill is reduced the 5th regulated quantity;

Be in high mill sound-like state, high oil pressure state and low power state in response to described ore mill is current simultaneously, the mine-supplying quantity of described ore mill is reduced the 6th regulated quantity;

Be in rationally mill sound-like state, high oil pressure state and low power state in response to described ore mill is current simultaneously, the mine-supplying quantity of described ore mill is increased the 5th regulated quantity;

Be in low mill sound-like state, rationally oil pressure state and reasonable power rating in response to described ore mill is current simultaneously, the mine-supplying quantity of described ore mill is increased the 5th regulated quantity;

Be in low mill sound-like state, rationally oil pressure state and low power state in response to described ore mill is current simultaneously, the mine-supplying quantity of described ore mill is reduced the 5th regulated quantity;

Wherein, described 5th regulated quantity is less than described 6th regulated quantity.

Optionally, the mill sound-like state value that described acquisition ore mill is current, comprising:

By obtaining the signal of telecommunication of described mill sound detect to the mill sound detect of described ore mill;

The difference calculated between signal higher limit and the current value of the described signal of telecommunication accounts for the ratio of signal spacing width; Wherein, described signal higher limit is the current value of the maximum signal of telecommunication of described ore mill mill sound detect, described signal spacing width is that described signal higher limit and signal roll off the production line the difference of value, and described signal lower limit is the current value of the minimum signal of telecommunication of described ore mill mill sound detect;

With default corrected parameter, described ratio is revised, obtain the mill sound-like state value that described ore mill is current.

Optionally, also comprise:

Judge whether the mine-supplying quantity of described ore mill exceedes mine-supplying quantity higher limit, if so, the mine-supplying quantity of described ore mill is adjusted to described mine-supplying quantity higher limit.

The embodiment of the present application additionally provides the device that a kind of ore mill feed ore concentration controls, and comprising:

First acquisition module, for obtaining the current main shaft oil pressure of ore mill and power;

First stationary state module, for magnitude of power scope belonging to oil pressure number range belonging to described main shaft oil pressure and described power, determines the oil pressure state that ore mill is current and power rating, wherein, if described main shaft oil pressure is less than or equal to the first oil pressure threshold value, described ore mill is current is in low oil pressure state, if described main shaft oil pressure is less than the second oil pressure threshold value and be greater than the first oil pressure threshold value, described ore mill is current is in reasonable oil pressure state, if described main shaft oil pressure is more than or equal to the second oil pressure threshold value, described ore mill is current is in high oil pressure state, if described power is less than or equal to the first power threshold, described ore mill is current is in low power state, if described power is less than the second power threshold and be greater than the first power threshold, described ore mill is current is in reasonable power rating, if described power is more than or equal to the second power threshold, described ore mill is current is in high power state, wherein, described second oil pressure threshold value is greater than described first oil pressure threshold value, described second power threshold is greater than described first power threshold,

Reduce concentration module, for being in high oil pressure state and high power state in response to described ore mill is current simultaneously, reduce the feed ore concentration of described ore mill;

Improve concentration module, for being in low oil pressure state and low power state in response to described ore mill is current simultaneously, improve the feed ore concentration of described ore mill.

Optionally, also comprise:

Concentration comparison module, for the magnitude relationship of the feed ore concentration of more described ore mill and upper limit of concentration value, concentration limit value; Described upper limit of concentration value is greater than described concentration limit value;

Upper limit of concentration module, for being greater than described upper limit of concentration value in response to described feed ore concentration, is adjusted to described upper limit of concentration value by described feed ore concentration;

Concentration limit module, for being less than described concentration limit value in response to described feed ore concentration, is adjusted to described concentration limit value by described feed ore concentration.

Optionally, also comprise:

First decrement module, for being in higher load condition in response to described ore mill is current, reduces the mine-supplying quantity of described ore mill; Described higher load condition comprises: described ore mill is current is in high oil pressure state and high power state simultaneously, described ore mill is current is in high oil pressure state and reasonable power rating simultaneously, with, described ore mill is current is in reasonable oil pressure state and high power state simultaneously;

First incremental modular, for being in low load condition in response to described ore mill is current, increases the mine-supplying quantity of described ore mill; Described low load condition comprises: described ore mill is current is in low oil pressure state and low power state simultaneously, described ore mill is current is in low oil pressure state and reasonable power rating simultaneously, with, described ore mill is current is in reasonable oil pressure state and low power state simultaneously.

Optionally, also comprise:

Second acquisition module, for obtaining the current mill sound-like state value of ore mill;

Second stationary state module, for grinding the current mill sound-like state of sound number range determination ore mill belonging to described mill sound-like state value; Wherein, if described mill sound-like state value is less than or equal to the first mill sound threshold value, described ore mill is current is in low mill sound-like state, if described mill sound-like state value is less than the second mill sound threshold value and be greater than the first mill sound threshold value, described ore mill is current is in rationally mill sound-like state, if described mill sound-like state value is more than or equal to the second mill sound threshold value, described ore mill is current is in high mill sound-like state, wherein, described second mill sound threshold value is greater than described first mill sound threshold value;

First decrement module comprises:

First regulates submodule, for being in the first higher load condition in response to described ore mill, the mine-supplying quantity of described ore mill is reduced the first regulated quantity;

Second regulates submodule, for being in the second higher load condition in response to described ore mill, the mine-supplying quantity of described ore mill is reduced the second regulated quantity;

Wherein, the second regulated quantity is less than the first regulated quantity; Described first higher load condition comprises: described ore mill is current is in rationally mill sound-like state, high oil pressure state and high power state simultaneously, and described ore mill is current is in low mill sound-like state, high oil pressure state and high power state simultaneously; Described second higher load condition is other higher load conditions except described first higher load condition.

Described first incremental modular comprises:

3rd regulates submodule, for being in the first low load condition in response to described ore mill, the mine-supplying quantity of described ore mill is increased the 3rd regulated quantity;

4th regulates submodule, for being in the second low load condition in response to described ore mill, the mine-supplying quantity of described ore mill is increased the 4th regulated quantity;

Optionally, also comprise:

Second decrement module, for being in high mill sound-like state, rationally oil pressure state and reasonable power rating in response to described ore mill is current simultaneously, reduces the 5th regulated quantity by the mine-supplying quantity of described ore mill;

3rd decrement module, for being in high mill sound-like state, high oil pressure state and low power state in response to described ore mill is current simultaneously, reduces the 6th regulated quantity by the mine-supplying quantity of described ore mill;

Second incremental modular, for being in rationally mill sound-like state, high oil pressure state and low power state in response to described ore mill is current simultaneously, increases the 5th regulated quantity by the mine-supplying quantity of described ore mill;

3rd incremental modular, for being in low mill sound-like state, rationally oil pressure state and reasonable power rating in response to described ore mill is current simultaneously, increases the 5th regulated quantity by the mine-supplying quantity of described ore mill;

4th decrement module, for being in low mill sound-like state, rationally oil pressure state and low power state in response to described ore mill is current simultaneously, reduces the 5th regulated quantity by the mine-supplying quantity of described ore mill.

Optionally, described second acquisition module comprises:

Signal detection submodule, for the signal of telecommunication by obtaining described mill sound detect to the mill sound detect of described ore mill;

Ratio calculating sub module, for calculate signal higher limit and the described signal of telecommunication current value between difference account for the ratio of signal spacing width; Wherein, described signal higher limit is the current value of the maximum signal of telecommunication of described ore mill mill sound detect, described signal spacing width is that described signal higher limit and signal roll off the production line the difference of value, and described signal lower limit is the current value of the minimum signal of telecommunication of described ore mill mill sound detect;

Ratio correction submodule, for revising described ratio with default corrected parameter, obtains the mill sound-like state value that described ore mill is current.

Optionally, also comprise:

Ore deposit amount judge module, for judging whether the mine-supplying quantity of described ore mill exceedes mine-supplying quantity higher limit;

Ore deposit amount upper limit module, for when the judged result of described judge module is for being, is adjusted to described mine-supplying quantity higher limit by the mine-supplying quantity of described ore mill.

Compared with prior art, the application has the following advantages:

The technical scheme of the embodiment of the present application, the main shaft oil pressure current according to ore mill and the current oil pressure state that is in of power determination ore mill and power rating, the load condition of ore mill is represented with the oil pressure state of ore mill and power rating, ore mill is current be in high oil pressure state and high power state simultaneously time reduce feed ore concentration, ore mill is current be in low oil pressure state and low power state simultaneously time improve feed ore concentration.By the technical scheme of the embodiment of the present application, can realize, feed ore concentration is reduced when ore mill load condition is higher, to reduce the load of ore mill and to make the throwing of raw ore lump ore and steel ball pound attrition process more abundant, thus make the grinding efficiency of grinding machine reach requirement, improve feed ore concentration when ore mill load condition is on the low side, to improve the load of ore mill and to improve the ore handling capacity of grinding machine, thus improve output and the efficiency of grinding process, reduce the energy consumption of unit ton concentrate.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the course of work schematic diagram of ore mill in grinding process;

Fig. 2 is the basic flow sheet of the embodiment of the method 1 that in the application, ore mill feed ore concentration controls;

Fig. 3 is the flow chart that in the embodiment of the present application, feed ore concentration bound adjusts an embodiment;

Fig. 4 is the basic flow sheet of the embodiment of the method 2 that in the application, ore mill feed ore concentration controls;

Fig. 5 is the flow chart combining mill sound determination load condition one embodiment in the embodiment of the present application;

Fig. 6 is the flow chart obtaining mill sound-like state value one embodiment in the embodiment of the present application;

Fig. 7 is the basic flow sheet of the embodiment of the method 3 that in the application, ore mill feed ore concentration controls;

Fig. 8 is the basic flow sheet of the embodiment of the method 4 that in the application, ore mill feed ore concentration controls;

Fig. 9 is the structure chart of the device embodiment 1 that in the application, ore mill feed ore concentration controls;

Figure 10 is the structure chart of the device embodiment 2 that in the application, ore mill feed ore concentration controls;

Figure 11 is the structure chart of the device embodiment 3 that in the application, ore mill feed ore concentration controls;

Figure 12 is the structure chart of the device embodiment 4 that in the application, ore mill feed ore concentration controls;

Figure 13 is the structure chart of the device embodiment 5 that in the application, ore mill feed ore concentration controls;

Figure 14 is the structure chart of the second acquisition module 1,201 one embodiment in the embodiment of the present application;

Figure 15 is the structure chart of the device embodiment 6 that in the application, ore mill feed ore concentration controls.

Detailed description of the invention

The application's scheme is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.

Inventor finds through research, for a long time, ore mill spatial load forecasting of the prior art, what adopt is all that mine-supplying quantity (namely throwing in the mineral aggregate quantity to the ore mill) this point being ore mill based on the major influence factors of ore mill load is considered, by realizing the regulable control of ore mill mine-supplying quantity.But uncared-for, in fact except mine-supplying quantity, the feed ore concentration of ore mill is also one of principal element of ore mill load, by also realizing carrying out spatial load forecasting to ore mill to the regulable control of feed ore concentration.

Based on above-mentioned analysis and research, the basic thought of the application is: the main shaft oil pressure current according to ore mill and the current oil pressure state that is in of power determination ore mill and power rating, the load condition of ore mill is represented with the oil pressure state of ore mill and power rating, ore mill is current be in high oil pressure state and high power state simultaneously time reduce feed ore concentration, ore mill is current be in low oil pressure state and low power state simultaneously time improve feed ore concentration.So just can realize, feed ore concentration is reduced when ore mill load condition is higher, to reduce the load of ore mill and to make mineral aggregate pulverize more fully, thus make grinding efficiency reach requirement, feed ore concentration is improved when ore mill load condition is on the low side, to improve the load of ore mill and to improve ore grinding output, thus make the output increased of ore milling product.

After the basic thought describing the application, below in conjunction with accompanying drawing, described in detail the specific implementation of the method and apparatus that the application's ore mill feed ore concentration controls by embodiment.

See Fig. 2, show the basic flow sheet of the embodiment of the method 2 that ore mill feed ore concentration controls in the application.In the present embodiment, described method such as can comprise the following steps:

S201, obtain the current main shaft oil pressure of ore mill and power, and belonging to described main shaft oil pressure magnitude of power scope belonging to oil pressure number range and described power, determine the oil pressure state that ore mill is current and power rating.

Particularly, the determination mode of oil pressure state and power rating can be such as: if described main shaft oil pressure is less than or equal to the first oil pressure threshold value, and described ore mill is current is in low oil pressure state, if described main shaft oil pressure is less than the second oil pressure threshold value and be greater than the first oil pressure threshold value, described ore mill is current is in reasonable oil pressure state, if described main shaft oil pressure is more than or equal to the second oil pressure threshold value, described ore mill is current is in high oil pressure state, if described power is less than or equal to the first power threshold, described ore mill is current is in low power state, if described power is less than the second power threshold and be greater than the first power threshold, described ore mill is current is in reasonable power rating, if described power is more than or equal to the second power threshold, described ore mill is current is in high power state, wherein, described second oil pressure threshold value is greater than described first oil pressure threshold value, described second power threshold is greater than described first power threshold.

It should be noted that, the first oil pressure threshold value and the second oil pressure threshold value can set according to the maximum oil pressure of ore mill, and such as, the first oil pressure threshold value can be the 95%, second oil pressure threshold value of maximum oil pressure can be 85% of maximum oil pressure; Similarly, the first power threshold and the second power threshold can be set according to the peak power of ore mill, and such as, the first power threshold can be the 95%, second power threshold of peak power can be 85% of peak power.

S202, be in high oil pressure state and high power state in response to described ore mill is current simultaneously, reduce the feed ore concentration of described ore mill.

Wherein, the mode of reduction can be current feed ore concentration is deducted a fixing regulated value again to obtain current feed ore concentration.

S203, be in low oil pressure state and low power state in response to described ore mill is current simultaneously, improve the feed ore concentration of described ore mill.

Wherein, the mode of raising can be current feed ore concentration is added a fixing regulated value obtains current feed ore concentration again.

It should be noted that, judge that the mode of load condition is different from prior art by the mill sound (noise that ore mill produces) of ore mill, what adopt in the present embodiment is that the main shaft oil pressure of ore mill and power are to judge the load condition of ore mill.This on the one hand, mainly because prior art is just in order to control mine-supplying quantity, and the corresponding relation between feed ore concentration from load condition is different with the corresponding relation between mine-supplying quantity and load condition, almost do not have correlation between ore mill feed ore concentration and mill sound, namely during feed ore concentration change, the mill sound of ore mill has almost no change; On the other hand, be fluctuate because mill sound can be subject to the interference of outer work condition, the load condition of ore mill can not be reflected exactly.

In order to avoid excessively regulating feed ore concentration, in the present embodiment, can also after S202 or S203 be complete, the feed ore concentration exceeding the upper limit or do not reach lower limit is adjusted.Particularly, as shown in Figure 3, after S202 is complete, or S203 complete after, can following steps be entered:

The corresponding relation of the feed ore concentration of S301, more described ore mill and upper limit of concentration value, concentration limit value; Described upper limit of concentration value is greater than described concentration limit value.

Wherein, upper limit of concentration value and concentration limit value can be arranged according to concrete operating mode, and such as, upper limit of concentration value can be set as 85%, and concentration limit value can be set as 75%.

S302, be greater than described upper limit of concentration value in response to described feed ore concentration, described feed ore concentration is adjusted to described upper limit of concentration value.

S303, be less than described concentration limit value in response to described feed ore concentration, described feed ore concentration is adjusted to described concentration limit value.

Then Fig. 2 is returned.

By the technical scheme of the present embodiment, feed ore concentration is reduced when ore mill load condition is higher, to reduce the load of ore mill and to make mineral aggregate pulverize more fully, thus make grinding efficiency reach requirement, feed ore concentration is improved when ore mill load condition is on the low side, to improve the load of ore mill and to improve ore grinding output, thus make the output increased of ore milling product.

Because the influence factor of ore mill load condition not only comprises feed ore concentration, also comprise mine-supplying quantity, so, when ore mill load condition is controlled, can by carrying out regulable control to realize to feed ore concentration and mine-supplying quantity simultaneously simultaneously.

See Fig. 4, show the basic flow sheet of the embodiment of the method 2 that ore mill feed ore concentration controls in the application.In the present embodiment, described method such as can comprise the following steps:

S401, obtain the current main shaft oil pressure of ore mill and power, and belonging to described main shaft oil pressure magnitude of power scope belonging to oil pressure number range and described power, determine the oil pressure state that ore mill is current and power rating.

Be understandable that, after S401 is complete, need to determine that entering which step following continues to perform according to the current oil pressure state of ore mill and power rating.Wherein, determine that the step entered can be one during each control, also can be two, such as, can determining to enter S403 when determining to enter S402 simultaneously, can determine to enter S404 when determining to enter S403 simultaneously.

S402, be in high oil pressure state and high power state in response to described ore mill is current simultaneously, reduce the feed ore concentration of described ore mill.

S403, be in higher load condition in response to described ore mill is current, reduce the mine-supplying quantity of described ore mill.

Wherein, described higher load condition comprises following three kinds of situations:

(1) described ore mill is current is in high oil pressure state and high power state simultaneously;

(2) described ore mill is current is in high oil pressure state and reasonable power rating simultaneously;

(3) described ore mill is current is in reasonable oil pressure state and high power state simultaneously.

Be understandable that, described higher load condition comprises above three kinds of situations, refer to that above-mentioned three kinds of any one situations of situation can be referred to as higher load condition, as long as namely the main shaft oil pressure of ore mill and power meet any one situation above-mentioned, just represent that ore mill is current and be in higher load condition.

It should be noted that, because the condition performing response in S402 belongs to one of condition performing response in S403, also namely under the condition of S402 execution, S403 inevitably performs, therefore, when meeting in S402 the condition performing response, S402 and S403 needs to perform simultaneously.

S404, be in low oil pressure state and low power state in response to described ore mill is current simultaneously, improve the feed ore concentration of described ore mill.

S405, be in low load condition in response to described ore mill is current, increase the mine-supplying quantity of described ore mill.

Wherein, described low load condition comprises following three kinds of situations:

(1) described ore mill is current is in low oil pressure state and low power state simultaneously;

(2) described ore mill is current is in low oil pressure state and reasonable power rating simultaneously;

(3) described ore mill is current is in reasonable oil pressure state and low power state simultaneously.

Be understandable that, described low load condition comprises above three kinds of situations, refer to that above-mentioned three kinds of any one situations of situation can be referred to as low load condition, as long as namely the main shaft oil pressure of ore mill and power meet any one situation above-mentioned, just represent that ore mill is current and be in low load condition.

It should be noted that, because the condition performing response in S404 belongs to one of condition performing response in S405, also namely under the condition of S404 execution, S405 inevitably performs, therefore, when meeting in S404 the condition performing response, S404 and S405 needs to perform simultaneously.

In the present embodiment, when regulating mine-supplying quantity, judge that the mode of ore mill load condition equally also realizes according to main shaft oil pressure and power.Reason is, if ore mill load condition is only determine according to the mill sound of ore mill in as prior art, because in actual production complicated and changeable, the noise of ore mill is subject to many-sided interference, relation between mill sound and ore mill load is not changeless, therefore, the interference that will be subject to due to mill sound by the ore mill load condition determined of mill sound and changing, what cause ore mill load condition to judge is inaccurate; If determined according to the main shaft oil pressure of ore mill and power, because main shaft oil pressure and ore mill power can't be subject to the impact of actual complex operating mode as sound, the load condition of ore mill would not be subject to the impact of actual condition and can more accurately determine, thus makes the spatial load forecasting of ore mill more accurate.

In the actual moving process of ore mill, ore mill is sometimes neither in higher load condition and is not also in low load condition, but be in abnormal conditions or normal duty state, now, can also determine how the mine-supplying quantity of ore mill is controlled further combined with the mill sound situation of ore mill in the present embodiment, such as particularly as shown in Figure 5, on the process base shown in Fig. 4, the present embodiment can further include following steps:

The mill sound-like state value that S501, acquisition ore mill are current, and the current mill sound-like state of sound number range determination ore mill is ground belonging to described mill sound-like state value.

Particularly, the determination mode of mill sound-like state can be such as: if described mill sound-like state value is less than or equal to the first mill sound threshold value, described ore mill is current is in low mill sound-like state, if described mill sound-like state value is less than the second mill sound threshold value and be greater than the first mill sound threshold value, described ore mill is current is in rationally mill sound-like state, if described mill sound-like state value is more than or equal to the second mill sound threshold value, described ore mill is current is in high mill sound-like state, wherein, described second mill sound threshold value is greater than described first mill sound threshold value.

It should be noted that, the first mill sound threshold value and the second mill sound threshold value can set according to the maximum mill sound-like state value of ore mill, and such as, the first mill sound threshold value can be the 90%, second mill sound threshold value of maximum mill sound-like state value can be 75% of maximum mill sound-like state value.

In the present embodiment, the mill sound that mill sound-like state value is detected by ore mill calculates and draws.Such as particularly, a kind of obtain manner grinding sound-like state value, can as shown in Figure 6, and S501 can have been come by following steps:

S601, by obtaining the signal of telecommunication of described mill sound detect to the mill sound detect of described ore mill.

S602, the difference calculated between signal higher limit and the current value of the described signal of telecommunication account for the ratio of signal spacing width.

Wherein, described signal higher limit is the current value of the maximum signal of telecommunication of described ore mill mill sound detect, described signal spacing width is that described signal higher limit and signal roll off the production line the difference of value, and described signal lower limit is the current value of the minimum signal of telecommunication of described ore mill mill sound detect.Such as, usually, the current value of the mill sound signal of telecommunication detected is all in the scope of 4 ~ 20 milliamperes, the current value of the maximum signal of telecommunication is 20 milliamperes, and the current value of the minimum signal of telecommunication is 4 milliamperes, then signal higher limit is 20, signal lower limit is 4, and now signal spacing width is 16.

S603, with default corrected parameter, described ratio to be revised, obtain the mill sound-like state value that described ore mill is current.

Particularly, such as following formula can be adopted calculate mill sound-like state value:

YI = 100 \times \frac{(X_{\max} - X)}{X_{\max - \min}} + KD;

Wherein, YI is mill sound-like state value, and X detects the current value grinding the signal of telecommunication that sound obtains, X _maxfor signal higher limit, X _max-minfor signal spacing width, KD is corrected parameter, and wherein, KD can be the constant pre-set.

In the present embodiment, why need to revise described ratio instead of directly using described ratio as mill sound-like state value, because the mill sound of ore mill is interfered sometimes, the quiescent current value that detection mill sound obtains has deviation, even can exceed signal higher limit or not reach signal lower limit, needing the impact described ratio correction being alleviated to this interference.

Then Fig. 5 is returned.After S501 is complete, comprehensive S501 and S501 determined mill sound-like state, oil pressure state and power rating, when not performing S402 ~ S405, determine to enter any one step in S502 ~ S506.

S502, be in high mill sound-like state, rationally oil pressure state and reasonable power rating in response to described ore mill is current simultaneously, the mine-supplying quantity of described ore mill is reduced the 5th regulated quantity.

S503, be in high mill sound-like state, high oil pressure state and low power state in response to described ore mill is current simultaneously, the mine-supplying quantity of described ore mill is reduced the 6th regulated quantity.

S504, be in rationally mill sound-like state, high oil pressure state and low power state in response to described ore mill is current simultaneously, the mine-supplying quantity of described ore mill is increased the 5th regulated quantity.

S505, be in low mill sound-like state, rationally oil pressure state and reasonable power rating in response to described ore mill is current simultaneously, the mine-supplying quantity of described ore mill is increased the 5th regulated quantity.

S506, be in low mill sound-like state, rationally oil pressure state and low power state in response to described ore mill is current simultaneously, the mine-supplying quantity of described ore mill is reduced the 5th regulated quantity.

Be understandable that, in S502, S503 and S506, ore mill is current is in fact all in higher load condition, and in S504, S505, ore mill is current is in fact all in low load condition.Especially, in above-mentioned S503, oil pressure and the mill sound of ore mill are all higher, but and power is lower, illustrate that now ore mill inner stuffing too completely causes mineral aggregate to be difficult to be stirred, so adopt in S503 be six regulated quantity larger compared with other states of ore mill to reduce mine-supplying quantity, to make mine-supplying quantity to reduce rapidly, ore mill inner stuffing reduces rapidly.

In addition, it should be noted that, in present embodiment above-mentioned S402 ~ S405 and S502 ~ S506 ore mill state outside, ore mill state may be also following four kinds of situations:

(1) ore mill is current is in high mill sound-like state, low-pressure state and high power state simultaneously;

(2) ore mill is current is in rationally mill sound-like state, low-pressure state and high power state simultaneously;

(3) ore mill is current is in rationally mill sound-like state, rationally pressure state and rationally power rating simultaneously;

(4) ore mill is current is in low mill sound-like state, low-pressure state and high power state simultaneously;

Above four kinds of situations; represent that current ore mill load condition belongs to normal or abnormal conditions; the mine-supplying quantity of current ore mill now can be kept constant; and when waiting for that the state of ore mill is follow-up and change, then go to carry out regulable control according to aforementioned above-mentioned S402 ~ S405 and S502 ~ S506 to mine-supplying quantity.

Then Fig. 4 is returned.

In order to avoid the excessive adjustment of mine-supplying quantity, after S402 ~ S405 any one is complete, can also judge whether the mine-supplying quantity of described ore mill exceedes mine-supplying quantity higher limit further, if so, the mine-supplying quantity of described ore mill is adjusted to described mine-supplying quantity higher limit.Wherein, mine-supplying quantity higher limit can be a default constant, as being preferably 360 tons/hour.

The technical scheme of the present embodiment, the load condition of ore mill is determined according to the main shaft oil pressure of ore mill and power, and come to carry out regulable control to mine-supplying quantity and feed ore concentration according to the load condition determined simultaneously, thus achieve load condition is adjusted more accurately and rapidly.

It should be noted that, when each regulable control reduced mine-supplying quantity or increase, a kind of possible control mode can be reduce with fixed value or increase mine-supplying quantity, and before and after namely regulating, the difference (regulated quantity) of mine-supplying quantity is a fixed value.But in order to carry out mine-supplying quantity control more subtly, another kind of possible control mode can be that before and after namely regulating, the difference of mine-supplying quantity is comprehensively determined in conjunction with ore mill mill sound, main shaft oil pressure and power in conjunction with the current mill sound of ore mill to determine the regulated quantity of mine-supplying quantity; Particularly, participate in Fig. 7, show the basic flow sheet of the embodiment of the method 3 that the application's ore mill feed ore concentration controls.In the present embodiment, such as can comprise the following steps:

S701, obtain the current main shaft oil pressure of ore mill and power, and belonging to described main shaft oil pressure magnitude of power scope belonging to oil pressure number range and described power, determine the oil pressure state that ore mill is current and power rating.

The mill sound-like state value that S702, acquisition ore mill are current, and the current mill sound-like state of sound number range determination ore mill is ground belonging to described mill sound-like state value.

It should be noted that, in the present embodiment, the execution sequence of S701 and S702 can not limit, such as, can first perform S701 and perform S702 again, and for example can first perform S702 and perform S701 again, can also perform S701 and S702 for another example simultaneously.After S701 and S702 is complete, according to determined mill sound-like state, oil pressure state and power rating, select any one step entering S703 ~ S708.Wherein, S704 and S705 all belongs to the higher load condition of S403 in preceding method embodiment 1, S707 and S708 all belongs to the low load condition of S405 in preceding method embodiment 1.

S703, be in high oil pressure state and high power state in response to described ore mill is current simultaneously, reduce the feed ore concentration of described ore mill.

S704, be in the first higher load condition in response to described ore mill, the mine-supplying quantity of described ore mill is reduced the first regulated quantity.

Wherein, the first higher load condition can comprise following two kinds of ore mill states:

(1) described ore mill is current is in rationally mill sound-like state, high oil pressure state and high power state simultaneously;

(2) described ore mill is current is in low mill sound-like state, high oil pressure state and high power state simultaneously.

S705, be in the second higher load condition in response to described ore mill, the mine-supplying quantity of described ore mill is reduced the second regulated quantity.

Wherein, the second higher load condition can be other higher load conditions except the first higher load condition, particularly, can comprise following seven kinds of ore mill ore mill states:

(1) described ore mill is current is in high mill sound-like state, high oil pressure state and high power state simultaneously;

(2) described ore mill is current is in high mill sound-like state, rationally oil pressure state and high power state simultaneously;

(3) described ore mill is current is in high mill sound-like state, high oil pressure state and reasonable power rating simultaneously;

(4) described ore mill is current is in rationally mill sound-like state, high oil pressure state and reasonable power rating simultaneously;

(5) described ore mill is current is in rationally mill sound-like state, rationally oil pressure state and high power state simultaneously;

(6) described ore mill is current is in low mill sound-like state, high oil pressure state and reasonable power rating simultaneously;

(7) described ore mill is current is in low mill sound-like state, rationally oil pressure state and high power state simultaneously.

It should be noted that, described second regulated quantity is less than described first regulated quantity.When ore mill is in the first higher load condition, the oil pressure of ore mill and power are all higher, and but it is not high to grind sound, illustrate that now ore mill inner stuffing too completely causes mineral aggregate to be difficult to be stirred, so what adopt in S704 is that first regulated quantity larger compared with S705 second regulated quantity is to reduce mine-supplying quantity, to make mine-supplying quantity to reduce rapidly, ore mill inner stuffing reduces rapidly.

S706, be in low oil pressure state and low power state in response to described ore mill is current simultaneously, improve the feed ore concentration of described ore mill.

S707, be in the first low load condition in response to described ore mill, the mine-supplying quantity of described ore mill is increased the 3rd regulated quantity.

Wherein, the first low load condition can comprise following four kinds of ore mill states:

(1) described ore mill is current is in rationally mill sound-like state, low oil pressure state and low power state simultaneously;

(2) described ore mill is current is in low mill sound-like state, low oil pressure state and reasonable power rating simultaneously;

(3) described ore mill is current is in low mill sound-like state, rationally oil pressure state and low power state simultaneously;

(4) described ore mill is current is in low mill sound-like state, low oil pressure state and low power state simultaneously.

S708, be in the second low load condition in response to described ore mill, the mine-supplying quantity of described ore mill is increased the 4th regulated quantity.

Wherein, the second low load condition can be other low load condition except the first low load condition, particularly, can comprise following five kinds of ore mill ore mill states:

(1) described ore mill is current is in high mill sound-like state, low oil pressure state and low power state simultaneously;

(2) described ore mill is current is in high mill sound-like state, low oil pressure state and reasonable power rating simultaneously;

(3) described ore mill is current is in rationally mill sound-like state, low oil pressure state and reasonable power rating simultaneously;

(4) described ore mill is current is in high mill sound-like state, rationally oil pressure state and low power state simultaneously;

(5) described ore mill is current is in rationally mill sound-like state, rationally oil pressure state and low power state simultaneously.

It should be noted that, described 4th regulated quantity is less than described 3rd regulated quantity.When ore mill is in the first low load condition, two are had at least to belong to low state in the mill sound of ore mill, oil pressure, power rating, in these three states, neither one belongs to high state again simultaneously, now famine filler and cause the ore grinding of ore mill insufficient in ore mill is described, so what adopt in S707 is that three regulated quantity larger compared with S708 the 4th regulated quantity is to increase mine-supplying quantity, to make mine-supplying quantity enough increase sharply, ore mill inner stuffing increases rapidly.

In addition, be understandable that, the 6th regulated quantity mentioned in the first regulated quantity in the present embodiment, the 3rd regulated quantity and preceding method embodiment 1 can be adopt same numerical value, similarly, the 5th regulated quantity mentioned in the second regulated quantity in the present embodiment, the 4th regulated quantity and preceding method embodiment 1 also can be adopt same numerical value.Certainly, above six regulated quantitys also can adopt different numerical value, such as, specifically can set according to actual condition.

By the embodiment of the present embodiment, when carrying out mine-supplying quantity to the ore mill being in higher load condition or low load condition and regulating, state in conjunction with the mill sound of ore mill, oil pressure and power three determines the regulated value that mine-supplying quantity regulates, achieve and utilize the ore mill mine-supplying quantity of different regulated values to different load state to carry out corresponding adjustment, thus it is more accurate that ore mill mine-supplying quantity is controlled.

In order to the application mode of technical scheme in actual scene making those skilled in the art clearly understand the application, for an application scenarios, a kind of embodiment of the application in practical application will be introduced in detail below.But it should be noted that the embodiment of this application scenarios is only spirit for the ease of understanding the application and principle and illustrates, the embodiment of the application is unrestricted in this regard.On the contrary, the embodiment of the application can be applied to applicable any scene.

This application scene adopts, and based on the combination of the mill sound-like state value of ore mill, main shaft oil pressure and power three, considers and determines the current load condition be in of ore mill, and then determine the regulative mode of feed ore concentration and mine-supplying quantity.Particularly, see Fig. 8, show the flow chart of the embodiment of the method 3 that ore mill feed ore concentration controls in the application.In the present embodiment, can comprise the following steps:

S801, detect the current main shaft oil pressure of ore mill, power and mill sound the signal of telecommunication and preserve.

In the present embodiment, main detected parameters and controling parameters can be preserved, can check when overhauling equipment later.The parameter of preserving, such as can comprise the mill sound-like state value, current mine-supplying quantity, current amount of water etc. that calculate in the main shaft oil pressure in each control moment, power and subsequent step, the quantity that each parameter is preserved can be all data in a nearest preset time period, such as, supplemental characteristic in nearest 3 months.

S802, according to mill sound the signal of telecommunication calculate current mill sound-like state value and preserve.

Particularly, can be calculated by following formula:

YI = 100 \times \frac{(20 - X)}{16} + KD;

Wherein, YI is mill sound-like state value, and X is the current value detecting the signal of telecommunication that mill sound obtains, and KD is default corrected parameter.

S803, number range belonging to current mill sound-like state value, main shaft oil pressure and power, determine current mill sound-like state, oil pressure state and the power rating be in of ore mill.

Particularly, each state can be determined according to table 1:

Table 1

In Table 1, first mill sound threshold value can be 75% of maximum mill sound-like state value, second mill sound threshold value can be 90% of maximum mill sound-like state value, first oil pressure threshold value can be 85% of maximum oil pressure, second oil pressure threshold value can be 95% of maximum oil pressure, first power threshold can be 85% of peak power, and the second power threshold can be 95% of peak power.

S804, according to current mill sound-like state, oil pressure state and the power rating of ore mill, determine the load condition that ore mill is current and determine the regulative mode of feed ore concentration, mine-supplying quantity.

Particularly, can determine with reference to table 2:

Table 2

In table 2, the first regulated quantity is greater than the second regulated quantity.It should be noted that, load condition and feed ore concentration in table 2, mine-supplying quantity regulative mode determine on the basis of preceding method embodiment 1 and embodiment of the method 2, but it is easy and clear in order to what describe in the present embodiment, state in a tabular form, therefore the determination mode in table 2 is the basic thought meeting the application introduced in foregoing embodiments.

S805, judge whether ore mill feed ore concentration, mine-supplying quantity after regulating belong to corresponding limits, if not, enter S806, if so, directly enter S807.

Wherein, for ore mill feed ore concentration, be judge whether feed ore concentration is less than or equal to upper limit of concentration value and is more than or equal to concentration limit value; For ore mill mine-supplying quantity, be judge whether feed ore concentration exceedes mine-supplying quantity higher limit.

S806, using described corresponding limit value value as regulate after ore mill feed ore concentration and/or mine-supplying quantity, enter S807.

Particularly, when ore mill feed ore concentration is greater than upper limit of concentration value, using upper limit of concentration value as the feed ore concentration after adjustment; When ore mill feed ore concentration is less than concentration limit value, using concentration limit value as the feed ore concentration after adjustment; When ore mill mine-supplying quantity is greater than mine-supplying quantity higher limit, using mine-supplying quantity higher limit as the mine-supplying quantity after adjustment.

S807, according to the ore mill feed ore concentration after regulating and mine-supplying quantity, the vibration frequency of adjustment ore grinding storehouse vibrofeeder and the amount of water of ore mill make-up water pump, so that control actual feed ore concentration, mine-supplying quantity.

By the technical scheme of the present embodiment, based on the combination of the mill sound-like state value of ore mill, main shaft oil pressure and power three, consider and determine the current load condition be in of ore mill, and then determine the control mode of feed ore concentration, mine-supplying quantity.Feed ore concentration is reduced when ore mill load condition is higher, to reduce the load of ore mill and to make mineral aggregate pulverize more fully, thus make the granularity of ore milling product reach requirement, feed ore concentration is improved when ore mill load condition is on the low side, to improve the load of ore mill and to improve ore grinding output, thus make the output increased of ore milling product.

Corresponding to method, present invention also provides the device that a kind of ore mill feed ore concentration controls.

See Fig. 9, show the structure chart of the device embodiment 1 that ore mill feed ore concentration controls in the application.In the present embodiment, described device can comprise:

First acquisition module 901, for obtaining the current main shaft oil pressure of ore mill and power;

First stationary state module 902, for magnitude of power scope belonging to oil pressure number range belonging to described main shaft oil pressure and described power, determines the oil pressure state that ore mill is current and power rating, wherein, if described main shaft oil pressure is less than or equal to the first oil pressure threshold value, described ore mill is current is in low oil pressure state, if described main shaft oil pressure is less than the second oil pressure threshold value and be greater than the first oil pressure threshold value, described ore mill is current is in reasonable oil pressure state, if described main shaft oil pressure is more than or equal to the second oil pressure threshold value, described ore mill is current is in high oil pressure state, if described power is less than or equal to the first power threshold, described ore mill is current is in low power state, if described power is less than the second power threshold and be greater than the first power threshold, described ore mill is current is in reasonable power rating, if described power is more than or equal to the second power threshold, described ore mill is current is in high power state, wherein, described second oil pressure threshold value is greater than described first oil pressure threshold value, described second power threshold is greater than described first power threshold,

Reduce concentration module 903, for being in high oil pressure state and high power state in response to described ore mill is current simultaneously, reduce the feed ore concentration of described ore mill;

Improve concentration module 904, for being in low oil pressure state and low power state in response to described ore mill is current simultaneously, improve the feed ore concentration of described ore mill.

See Figure 10, show the structure chart of the device embodiment 2 that ore mill feed ore concentration controls in the application.In the present embodiment, described device, except comprising all structures shown in Fig. 9, can also comprise:

Concentration comparison module 1001, for the magnitude relationship of the feed ore concentration of more described ore mill and upper limit of concentration value, concentration limit value; Described upper limit of concentration value is greater than described concentration limit value;

Upper limit of concentration module 1002, for being greater than described upper limit of concentration value in response to described feed ore concentration, is adjusted to described upper limit of concentration value by described feed ore concentration;

Concentration limit module 1003, for being less than described concentration limit value in response to described feed ore concentration, is adjusted to described concentration limit value by described feed ore concentration.

See Figure 11, show the structure chart of the device embodiment 3 that ore mill feed ore concentration controls in the application.In the present embodiment, described device, except comprising all structures shown in Fig. 9, can also comprise:

First decrement module 1101, for being in higher load condition in response to described ore mill is current, reduces the mine-supplying quantity of described ore mill; Described higher load condition comprises: described ore mill is current is in high oil pressure state and high power state simultaneously, described ore mill is current is in high oil pressure state and reasonable power rating simultaneously, with, described ore mill is current is in reasonable oil pressure state and high power state simultaneously;

First incremental modular 1102, for being in low load condition in response to described ore mill is current, increases the mine-supplying quantity of described ore mill; Described low load condition comprises: described ore mill is current is in low oil pressure state and low power state simultaneously, described ore mill is current is in low oil pressure state and reasonable power rating simultaneously, with, described ore mill is current is in reasonable oil pressure state and low power state simultaneously.

See Figure 12, show the structure chart of the device embodiment 4 that ore mill feed ore concentration controls in the application.In the present embodiment, described device, except comprising all structures shown in Figure 11, can also comprise:

Second acquisition module 1201, for obtaining the current mill sound-like state value of ore mill;

Second stationary state module 1202, for grinding the current mill sound-like state of sound number range determination ore mill belonging to described mill sound-like state value; Wherein, if described mill sound-like state value is less than or equal to the first mill sound threshold value, described ore mill is current is in low mill sound-like state, if described mill sound-like state value is less than the second mill sound threshold value and be greater than the first mill sound threshold value, described ore mill is current is in rationally mill sound-like state, if described mill sound-like state value is more than or equal to the second mill sound threshold value, described ore mill is current is in high mill sound-like state, wherein, described second mill sound threshold value is greater than described first mill sound threshold value;

Wherein, the first decrement module 1101 can comprise:

First regulates submodule 1203, for being in the first higher load condition in response to described ore mill, the mine-supplying quantity of described ore mill is reduced the first regulated quantity;

Second regulates submodule 1204, for being in the second higher load condition in response to described ore mill, the mine-supplying quantity of described ore mill is reduced the second regulated quantity;

Wherein, described first incremental modular 1102 comprises:

3rd regulates submodule 1205, for being in the first low load condition in response to described ore mill, the mine-supplying quantity of described ore mill is increased the 3rd regulated quantity;

4th regulates submodule 1206, for being in the second low load condition in response to described ore mill, the mine-supplying quantity of described ore mill is increased the 4th regulated quantity;

See Figure 13, show the structure chart of the device embodiment 5 that ore mill feed ore concentration controls in the application.In the present embodiment, described device, except comprising all structures shown in Figure 11, can also comprise:

Second decrement module 1301, for being in high mill sound-like state, rationally oil pressure state and reasonable power rating in response to described ore mill is current simultaneously, reduces the 5th regulated quantity by the mine-supplying quantity of described ore mill;

3rd decrement module 1302, for being in high mill sound-like state, high oil pressure state and low power state in response to described ore mill is current simultaneously, reduces the 6th regulated quantity by the mine-supplying quantity of described ore mill;

Second incremental modular 1303, for being in rationally mill sound-like state, high oil pressure state and low power state in response to described ore mill is current simultaneously, increases the 5th regulated quantity by the mine-supplying quantity of described ore mill;

3rd incremental modular 1304, for being in low mill sound-like state, rationally oil pressure state and reasonable power rating in response to described ore mill is current simultaneously, increases the 5th regulated quantity by the mine-supplying quantity of described ore mill;

4th decrement module 1305, for being in low mill sound-like state, rationally oil pressure state and low power state in response to described ore mill is current simultaneously, reduces the 5th regulated quantity by the mine-supplying quantity of described ore mill.

In said apparatus embodiment 3 ~ 4, optionally, see Figure 14, described second acquisition module 1201 can comprise:

Signal detection submodule 1401, for the signal of telecommunication by obtaining described mill sound detect to the mill sound detect of described ore mill;

Ratio calculating sub module 1402, for calculate signal higher limit and the described signal of telecommunication current value between difference account for the ratio of signal spacing width; Wherein, described signal higher limit is the current value of the maximum signal of telecommunication of described ore mill mill sound detect, described signal spacing width is that described signal higher limit and signal roll off the production line the difference of value, and described signal lower limit is the current value of the minimum signal of telecommunication of described ore mill mill sound detect;

Ratio correction submodule 1403, for revising described ratio with default corrected parameter, obtains the mill sound-like state value that described ore mill is current.

See Figure 15, show the structure chart of the device embodiment 6 that ore mill feed ore concentration controls in the application.In the present embodiment, described device, except comprising all structures shown in Figure 11, can also comprise:

Ore deposit amount judge module 1501, for judging whether the mine-supplying quantity of described ore mill exceedes mine-supplying quantity higher limit;

Ore deposit amount adjusting module 1502, for when the judged result of described upper limit judge module 1501 is for being, is adjusted to described mine-supplying quantity higher limit by the mine-supplying quantity of described ore mill.

By the technical scheme of the present embodiment, feed ore concentration is reduced when ore mill load condition is higher, to reduce the load of ore mill and to make mineral aggregate pulverize more fully, thus make the granularity of ore milling product reach requirement, feed ore concentration is improved when ore mill load condition is on the low side, to improve the load of ore mill and to improve ore grinding output, thus make the output increased of ore milling product.

It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.Term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.

For device embodiment, because it corresponds essentially to embodiment of the method, so relevant part illustrates see the part of embodiment of the method.Device embodiment described above is only schematic, the wherein said unit illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed on multiple NE.Some or all of module wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.Those of ordinary skill in the art, when not paying creative work, are namely appreciated that and implement.

The above is only the detailed description of the invention of the application; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection domain of the application.

Claims

1. a method for ore mill feed ore concentration control, is characterized in that, comprising:

2. method according to claim 1, is characterized in that, also comprises:

3. method according to claim 1, is characterized in that, also comprises:

Be in higher load condition in response to described ore mill is current, reduce the mine-supplying quantity of described ore mill; Described higher load condition comprises: described ore mill is current is in high oil pressure state and high power state simultaneously, described ore mill is current is in high oil pressure state and reasonable power rating simultaneously, or described ore mill is current is in reasonable oil pressure state and high power state simultaneously;

Be in low load condition in response to described ore mill is current, increase the mine-supplying quantity of described ore mill; Described low load condition comprises: described ore mill is current is in low oil pressure state and low power state simultaneously, described ore mill is current is in low oil pressure state and reasonable power rating simultaneously, or described ore mill is current is in reasonable oil pressure state and low power state simultaneously.

4. method according to claim 3, is characterized in that, also comprises: obtain the mill sound-like state value that ore mill is current, and grind the current mill sound-like state of sound number range determination ore mill belonging to described mill sound-like state value; Wherein, if described mill sound-like state value is less than or equal to the first mill sound threshold value, described ore mill is current is in low mill sound-like state, if described mill sound-like state value is less than the second mill sound threshold value and be greater than the first mill sound threshold value, described ore mill is current is in rationally mill sound-like state, if described mill sound-like state value is more than or equal to the second mill sound threshold value, described ore mill is current is in high mill sound-like state, wherein, described second mill sound threshold value is greater than described first mill sound threshold value;

Wherein, the second regulated quantity is less than the first regulated quantity; Described first higher load condition comprises: described ore mill is current is in rationally mill sound-like state, high oil pressure state and high power state simultaneously, or described ore mill is current is in low mill sound-like state, high oil pressure state and high power state simultaneously; Described second higher load condition is other higher load conditions except described first higher load condition;

Wherein, the 4th regulated quantity is less than the 3rd regulated quantity; Described first low load condition comprises: described ore mill is current is in rationally mill sound-like state, low oil pressure state and low power state simultaneously, described ore mill is current is in low mill sound-like state, low oil pressure state and reasonable power rating simultaneously, described ore mill is current is in low mill sound-like state, rationally oil pressure state and low power state simultaneously, or described ore mill is current is in low mill sound-like state, low oil pressure state and low power state simultaneously; Described second low load condition is other low load condition except described first low load condition.

5. method according to claim 3, is characterized in that, also comprises:

6. the method according to claim 4 or 5, is characterized in that, the mill sound-like state value that described acquisition ore mill is current, comprising:

7. method according to claim 3, is characterized in that, also comprises:

8. a device for ore mill feed ore concentration control, is characterized in that, comprising:

9. device according to claim 8, is characterized in that, also comprises:

10. device according to claim 8, is characterized in that, also comprises:

First decrement module, for being in higher load condition in response to described ore mill is current, reduces the mine-supplying quantity of described ore mill; Described higher load condition comprises: described ore mill is current is in high oil pressure state and high power state simultaneously, described ore mill is current is in high oil pressure state and reasonable power rating simultaneously, or described ore mill is current is in reasonable oil pressure state and high power state simultaneously;

First incremental modular, for being in low load condition in response to described ore mill is current, increases the mine-supplying quantity of described ore mill; Described low load condition comprises: described ore mill is current is in low oil pressure state and low power state simultaneously, described ore mill is current is in low oil pressure state and reasonable power rating simultaneously, or described ore mill is current is in reasonable oil pressure state and low power state simultaneously.

11. devices according to claim 10, is characterized in that, also comprise:

First decrement module comprises:

Described first incremental modular comprises:

12. devices according to claim 10, is characterized in that, also comprise:

13. devices according to claim 11 or 12, it is characterized in that, described second acquisition module comprises:

Ratio calculating sub module, for calculate signal higher limit and the described signal of telecommunication current value between difference account for the ratio of signal spacing width; Wherein, described signal higher limit is the current value of the maximum signal of telecommunication of described ore mill mill sound detect, described signal spacing width is the difference of described signal higher limit and signal lower limit, and described signal lower limit is the current value of the minimum signal of telecommunication of described ore mill mill sound detect;

14. devices according to claim 10, is characterized in that, also comprise: