CN208944319U - Crush-grind system - Google Patents
Crush-grind system Download PDFInfo
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- CN208944319U CN208944319U CN201821260320.0U CN201821260320U CN208944319U CN 208944319 U CN208944319 U CN 208944319U CN 201821260320 U CN201821260320 U CN 201821260320U CN 208944319 U CN208944319 U CN 208944319U
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Abstract
The utility model discloses a kind of crush-grind system, which includes: coarse crushing unit, including raw material cabin, the first batcher, coarse crushing crusher, coarse crushing mine ore storage bin, the second batcher and the first vibrating screen being sequentially connected；In unit fine crushing, including preceding surge bunker broken in being sequentially connected, third batcher, in broken crusher, in mine ore storage bin, the 4th batcher, the second vibrating screen, preceding surge bunker fine crushing, the 5th batcher and fine crusher fine crushing, fine crusher mine ore storage bin fine crushing in is connected；Pre- ore grinding unit, including fine ore bin, the 6th batcher, choke feeding bucket, high-pressure roller mill, pre- ore milling product buffering hopper and the third vibrating screen being sequentially connected, fine ore bin is connected with the screening outlet of the screening outlet of the first vibrating screen and the second vibrating screen, and the oversize outlet of third vibrating screen is connected with choke feeding bucket；Ore grinding unit, ball mill, pump pond, Pulp pump and cyclone, ball mill including being sequentially connected are connected with the screening outlet of third vibrating screen.
Description
Technical field
The utility model belongs to ore dressing field, specifically, the utility model relates to crush-grind systems.
Background technique
Currently, more universal rock processing is broadly divided into two major classes, Semi-autogenous Grinding Technology and conventional comminution in ore dressing field
Technique.Wherein, Semi-autogenous Grinding Technology mainly adds SAB/SABC technique as representative using coarse crushing；Conventional rock processing is mainly with (three/bis-)
Section (one/bis-) closed circuit technique is representative.
Recently as the rise of high pressure roller mill equipment, obtained using high-pressure roller mill as the rock processing of core equipment rapid
Development.Mainly there are three section crushing process (mostly open a way or half closed circuit) and high-pressure roller mill of the high-pressure roller mill as fine crushing device
Four sections of crushing process as ultrafine grinding equipment.Either broken or high-pressure roller mill four sections of three sections of high-pressure roller mill are broken
Broken technique, high-pressure roller mill are configured before muck final products ore storage bin, are dry operation, working system and crushing-ore system phase
Together, it works continuously within non-24 hours, product granularity P80Mostly 7mm.Such as San-Shan-Dao Gold Mine and family battalion, department iron ore are all made of high pressure
Three and half closed circuit techniques of the roller mill as fine crushing device；The city Jin Dui molybdenum ore (is made using conventional three section of one closed circuit+high-pressure roller mill
For ultrafine grinding equipment) open circuit four sections of crushing process.
According to current production application situation, high-pressure roller mill is (dry as the ore crushing technique of (or ultrafine grinding) equipment fine crushing
Formula operation) it has the following disadvantages and problem:
First is that current muck final products granularity P80It is 7mm or so, does not give full play to the ability of equipment, realizes section
It can maximize；
Second is that the problems such as there are edge effect, closed circuit screening, ore storage bin storage and blockings, especially for aqueous more containing mud
Material, bad adaptability.High-pressure roller mill open circuit crushing can have edge effect, will affect the product granularity of final mill feed material.
There is the problems such as breaing up, block, screening efficiency is low in closed circuit crushing, and dry screening is big there is also Dust Capacity and fine ore is stored not
The problems such as sharp.This is also seldom the reason of using high-pressure roller mill closed-circuit operation in current production practices.And half closed circuit flow
In, it, can be to a certain degree although the larger particles that roll surface end crushing effect can be made poor return to high-pressure roller mill and are crushed again
Edge effect is reduced, but its muck effect still has gap with closed circuit, can not achieve sufficient " much broken and lessmill ".
Therefore, existing comminution technology is further improved.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality
It is to propose a kind of crush-grind system with a novel purpose.The system is by being set to conventional muck process for high-pressure roller mill
Fine ore bin after, using closed-circuit operations, 24 continuous throughout the twenty-four hour24 systems are used together with Grinding procedure, avoids and deposits in the prior art
Edge effect, it is closed circuit screening, ore storage bin storage and blocking the problem of, be conducive to production management.
It is according to the present utility model the utility model proposes a kind of crush-grind system in the one aspect of the utility model
Embodiment, the system include:
Coarse crushing unit, the coarse crushing unit include the raw material cabin being sequentially connected, the first batcher, coarse crushing crusher, coarse crushing
Mine ore storage bin, the second batcher, the first vibrating screen；
In unit fine crushing, it is described in unit fine crushing include broken preceding surge bunker in being sequentially connected, third batcher, in it is broken broken
Broken machine, in mine ore storage bin, the 4th batcher, the second vibrating screen, preceding surge bunker fine crushing, the 5th batcher and fine crusher fine crushing,
Broken preceding surge bunker is connected with the outlet of the oversize of first vibrating screen in described, the preceding surge bunker fine crushing and second vibration
The oversize outlet of dynamic sieve is connected, the fine crusher with it is described in mine ore storage bin fine crushing be connected；
Pre- ore grinding unit, the pre- ore grinding unit include the fine ore bin being sequentially connected, the 6th batcher, choke feeding bucket,
High-pressure roller mill, pre- ore milling product buffering hopper and third vibrating screen, the minus mesh of the fine ore bin and first vibrating screen
Outlet is connected with the screening outlet of second vibrating screen, oversize outlet and the choke feeding of the third vibrating screen
Bucket is connected；
Ore grinding unit, the ore grinding unit include the ball mill being sequentially connected, pump pond, Pulp pump and cyclone, the ball
Grinding machine is connected with the screening outlet of the third vibrating screen.
According to the crush-grind system of the utility model embodiment, raw material carries out coarse crushing by coarse crushing unit, the first vibration after coarse crushing
Dynamic sieve minus mesh can be fed directly to fine ore bin, and the first Vibration Screen feeding send into unit fine crushing, is conducive in saving as a result,
The energy consumption of unit fine crushing, and improve the treatment effeciency of coarse crushing；In in unit fine crushing, using closed circuit screening operation, the first vibration
It is sent after sieve minus mesh is broken in the second vibrating screen and is sieved, the second Vibration Screen blanking is sent to fine ore bin, on the second Vibration Screen
Material is sieved through the second vibrating screen again after fine crushing, can significantly save as a result, in energy consumption fine crushing, and processing fine crushing in improving
Efficiency；Pre-grinding is carried out by sending the first Vibration Screen blanking in fine ore bin and the second Vibration Screen blanking to high-pressure roller mill
Mine can reduce ball mill mill feed size in ore grinding unit, reduce the energy consumption of ore grinding unit, and current application shows identical
P80Product through high pressure roller mill crusher machine under the conditions of (about 7mm) is compared with the product being crushed using conventional crusher, energy consumption drop
It is low that, using high-pressure roller mill as pre-grinding equipment, deeper time realizes " much broken and lessmill " between 15%~30%, and due to
Can get it is lower enter grinding rate (F80 can reach 3mm~6mm), will further decrease the comprehensive energy consumption of crush-grind system；Fine ore bin
Be provided be conducive to adjust coarse crushing unit and in lack of uniformity between unit and pre- ore grinding unit and ore grinding unit fine crushing, realize
Pre- ore grinding unit and ore grinding unit use 24 continuous throughout the twenty-four hour24 systems；The setting of choke feeding bucket can guarantee height before high-pressure roller mill
The working performance of pressure roller grinding machine；Pre- ore milling product buffering hopper is set before third vibrating screen, is conducive to control third vibrating screen
To the stability of mine, and third Vibration Screen feeding may return to high-pressure roller mill, realizes the closed-circuit operation of pre- ore grinding, significantly mentions
The working efficiency of high pre- ore grinding and the operating power consumption for being conducive to save pre- ore grinding；In ore grinding unit, ball mill and cyclone are formed
After ball mill wet ball-milling, the thinner wet-milling ore pulp of granularity can be obtained, after cyclone separates, granularity is conformed in closed circuit unit
The overflow asked is sent to subsequent processing, and undesirable sand setting returns to ball mill.The system is by setting high-pressure roller mill as a result,
After being placed in the fine ore bin of conventional muck process, using closed-circuit operation, 24 continuous throughout the twenty-four hour24 systems are used together with Grinding procedure, are kept away
The problem of having exempted from edge effect existing in the prior art, closed circuit screening, ore storage bin storage and blocking, is conducive to production management.
In addition, can also have the following additional technical features: according to the crush-grind system of the utility model above-described embodiment
Optional, the coarse crushing unit further comprises: the first belt conveyor, first belt conveyor respectively with
The coarse crushing crusher is connected with the coarse crushing mine ore storage bin, and first belt conveyor is equipped with weighing belt.Have as a result,
Conducive to the connection for realizing coarse crushing crusher and coarse crushing ore storage bin, the reasonable arrangement of coarse crushing unitary space is realized, while can pass through belt
The amount of scale record coarse crushing mine.
It is optional, it is described in unit fine crushing further comprise: the second belt conveyor, the second belt conveyor difference
With the outlet of the oversize of first vibrating screen and in broken preceding surge bunker be connected, and second belt conveyor is equipped with removing
Ironware；Third belt conveyor, the third belt conveyor respectively with it is described in broken crusher, the fine crusher and institute
Mine ore storage bin fine crushing is connected in stating, and the third belt conveyor is equipped with weighing belt；4th belt conveyor, the described 4th
Belt conveyor is connected with the outlet of the oversize of second vibrating screen and the preceding surge bunker fine crushing respectively, and the described 4th
Belt conveyor is equipped with iron remover.The reasonable arrangement of unitary space fine crushing in being advantageously implemented as a result, unit fine crushing in realization
Closed-circuit operation, while in flowing into unit fine crushing in can removing, the iron in fine crusher material to be to reduce centering, fine crushing set
Standby damage, and in recording, the amounts of mineral products fine crushing.
Optional, the pre- ore grinding unit further comprises: the 5th belt conveyor, the 5th belt conveyor difference
It is connected with the screening outlet of first vibrating screen, the screening outlet of second vibrating screen and the fine ore bin, and
5th belt conveyor is equipped with weighing belt；6th belt conveyor, the 6th belt conveyor is respectively with described
Six batchers are connected with the choke feeding bucket, and the 6th belt conveyor is equipped with weighing belt and iron remover；7th
Belt conveyor, the 7th belt conveyor are connected with the high-pressure roller mill and the buffering hopper；8th belt conveying
Machine, the 8th belt conveyor is connected with the outlet of the oversize of the third vibrating screen and the choke feeding bucket, and institute
The 8th belt conveyor is stated equipped with iron remover.The connection of unit and pre- ore grinding unit fine crushing in being advantageously implemented as a result, is realized
The reasonable arrangement of pre- ore grinding unitary space realizes pre- 24 operation of ore grinding unit, and realizes the closed-circuit operation of pre- ore grinding unit, simultaneously
By that can reduce the damage to pre- grinding attachment except iron, choke feeding can also reduce the damage of subsequent process equipment, and after guarantee
The performance of continuous process equipment.
Optional, the ore grinding unit further comprises: the 9th belt conveyor, the 9th belt conveyor with it is described
The screening outlet of third vibrating screen is connected with the ball mill.It is advantageously implemented pre- ore grinding unit and ore grinding unit as a result,
Connection.
Optional, first batcher is heavy-duty plate feeder, and the coarse crushing crusher is jaw crusher.By
This, the quality for being conducive to the working effect for improving coarse crushing unit and guaranteeing coarse crushing mine.
It is optional, it is described in broken crusher be standard cone crusher, the fine crusher is short head cone crusher.
Be conducive to the quality of unit products therefrom fine crushing in improving as a result,.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the structural schematic diagram according to the crush-grind system of the utility model one embodiment；
Fig. 2 is the structural schematic diagram according to the crush-grind system of the utility model further embodiment；
Fig. 3 is the structural schematic diagram according to the crush-grind system of the utility model another embodiment；
Fig. 4 is the structural schematic diagram according to the crush-grind system of the utility model another embodiment；
Fig. 5 is the structural schematic diagram according to the crush-grind system of the utility model another embodiment；
Fig. 6 is illustrated according to the process of the method for implementing comminution using crush-grind system of the utility model one embodiment
Figure.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on the figure
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention,
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this field
For art personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down "
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special
Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only
Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
It is according to the present utility model the utility model proposes a kind of crush-grind system in the one aspect of the utility model
Embodiment, with reference to Fig. 1, the system include: coarse crushing unit 100, in unit 200, pre- ore grinding unit 300 and ore grinding unit fine crushing
400。
Embodiment according to the present utility model, coarse crushing unit 100 include raw material cabin 11, the first batcher being sequentially connected
12, coarse crushing crusher 13, coarse crushing mine ore storage bin 14, the second batcher 15 and the first vibrating screen 16, and be suitable for the original in raw material cabin
Mine carries out coarse crushing, and to obtain coarse crushing mine, and coarse crushing mine carries out screening process, to obtain the first Vibration Screen feeding and first
Vibration Screen blanking.Specifically, raw ore is sent through raw material cabin to the first batcher, send through the first batcher to coarse crushing crusher and carry out
Coarse crushing processing, resulting coarse crushing mine are sent to coarse crushing mine ore storage bin, then are sent through the second batcher to the first vibrating screen and carried out screening process,
Obtain the lesser first Vibration Screen blanking of partial size and the biggish first Vibration Screen feeding of partial size.Be conducive in saving as a result,
The energy consumption of unit fine crushing, and improve the treatment effeciency of coarse crushing.It should be noted that the specific partial size of the first Vibration Screen blanking can
To be selected according to actual needs, such as can be for not less than 13mm.
One embodiment according to the present utility model, the first batcher 12 can be heavy-duty plate feeder, and coarse crushing is broken
Machine 13 can be jaw crusher.Be conducive to improve the feed ability of the first batcher and the broken effect of coarse crushing crusher as a result,
Rate improves the gained amount of the first Vibration Screen blanking and the quality of the first Vibration Screen feeding, to be conducive to save in subsequent
The energy consumption of unit fine crushing.
Embodiment according to the present utility model, in unit 200 fine crushing include broken preceding surge bunker 21, third in being sequentially connected
Batcher 22, in broken crusher 23, in mine ore storage bin 24 fine crushing, the 4th batcher 25, the second vibrating screen 26, preceding surge bunker fine crushing
27, the 5th batcher 28 and fine crusher 29, in the oversize of broken preceding surge bunker 21 and the first vibrating screen 16 export 161 phases
Even, preceding surge bunker 27 fine crushing is connected with the oversize of the second vibrating screen 26 outlet 261, the mine ore storage bin fine crushing in of fine crusher 29
24 are connected, and being suitable for will be broken in the progress of the first Vibration Screen feeding, and to obtain middle muck, middle muck carries out screening process again,
The second Vibration Screen feeding and the second Vibration Screen blanking are obtained, the progress of the second Vibration Screen feeding is fine crushing, fine crushing to obtain
Mine, mine fine crushing be back in mine ore storage bin fine crushing.Specifically, the first Vibration Screen feeding send into broken preceding buffering in coarse crushing unit
Storehouse, through third batcher send into broken crusher carry out in it is broken, obtained middle muck send into mine ore storage bin fine crushing, then through the 4th
Batcher send to the second vibrating screen and carries out screening process, obtains the second vibration of the second small Vibration Screen blanking of partial size and partial size greatly
Dynamic sieve oversize, the second Vibration Screen feeding send to preceding surge bunker fine crushing, send through the 5th batcher to fine crusher and carry out carefully
Broken, resulting mine fine crushing send into mine ore storage bin fine crushing.Inventors have found that being allocated as in unit fine crushing by using closed-circuit screen in
Industry is sent to the second vibrating screen after the first Vibration Screen feeding is broken in and is sieved, and the second Vibration Screen blanking is sent to fine ore bin, and second
Vibration Screen feeding is sieved through the second vibrating screen again after fine crushing, can significantly save in energy consumption fine crushing, and it is fine crushing in improving
Treatment effeciency.It should be noted that the specific partial size of the second Vibration Screen blanking can be selected according to actual needs, example
It such as can be for not less than 13mm.
One embodiment according to the present utility model, in broken crusher 23 can be standard cone crusher, it is fine crushing broken
Machine 29 can be short head cone crusher.Be conducive to the crushing efficiency and effect of broken crusher and fine crusher in improving as a result,
Fruit, so in saving fragmentation cell fine crushing energy consumption.
Embodiment according to the present utility model, pre- ore grinding unit 300 include fine ore bin 31, the 6th batcher being sequentially connected
32, choke feeding bucket 33, high-pressure roller mill 34, pre- ore milling product buffering hopper 35 and third vibrating screen 36, fine ore bin 31 and the
The screening outlet 162 of one vibrating screen 16 is connected with the screening outlet 262 of the second vibrating screen 26, on the sieve of third vibrating screen 36
Material outlet 361 is connected with choke feeding bucket 33, and is suitable for carrying out the first Vibration Screen blanking and the second Vibration Screen blanking pre-
Ore grinding, to obtain pre- ore milling product, pre- ore milling product is sieved again, to obtain third Vibration Screen feeding and third vibration
Dynamic sieve minus mesh.Specifically, fine ore bin is used to lay in the first Vibration Screen blanking and the second Vibration Screen blanking, then through the 6th
Batcher, which is sent to choke feeding bucket, to be buffered spare, is carried out pre- ore grinding sending to high-pressure roller mill, is buffered hopper through pre- ore milling product
After buffering, to send to third vibrating screen and carry out screening process, satisfactory third Vibration Screen blanking is sent to subsequent ore grinding unit,
Undesirable third Vibration Screen feeding returns to the pre-grinding again of choke feeding bucket.Inventors have found that by by fine ore bin
One Vibration Screen blanking and the second Vibration Screen blanking are sent to high-pressure roller mill and carry out pre- ore grinding, can reduce ball mill and enter abrasive grain
Degree reduces the energy consumption of ore grinding unit, and current application shows in identical P80Through high pressure roller mill crusher machine under the conditions of (about 7mm)
Product with using conventional crusher be crushed product compared with, energy consumption reduce between 15%~30%, using high-pressure roller mill
As pre-grinding equipment, deeper time is realized " much broken and lessmill ", and due to can get it is lower enter grinding rate (F80 can reach 3mm
~6mm), it will further decrease the comprehensive energy consumption of crush-grind system；Being provided with for fine ore bin is fine crushing in conducive to coarse crushing unit is adjusted
Lack of uniformity between unit and pre- ore grinding unit and ore grinding unit realizes pre- ore grinding unit and ore grinding unit using 24 hours even
Continuous duty；The setting of choke feeding bucket can guarantee the working performance of high-pressure roller mill before high-pressure roller mill；In third vibrating screen
The pre- ore milling product of preceding setting buffers hopper, is conducive to control third vibrating screen to the stability of mine, and third Vibration Screen feeding
It may return to high-pressure roller mill, realize the closed-circuit operation of pre- ore grinding, significantly improve the working efficiency of pre- ore grinding and be conducive to save
The operating power consumption of pre- ore grinding.It should be noted that in order to guarantee that pre- ore grinding unit and ore grinding unit can work for 24 hours, fine ore bin
Available capacity can be to meet amount handled by pre- ore grinding unit and ore grinding unit 24 hours.
The partial size of one embodiment according to the present utility model, the first Vibration Screen blanking and the second Vibration Screen blanking is simultaneously
It is not particularly limited, those skilled in the art, which can according to need, to be selected, such as can be for the accounting no more than 10mm not
Less than 80%.Be conducive to save the energy consumption of subsequent pre- ore grinding and grinding process as a result,.
The partial size of further embodiment according to the present utility model, third Vibration Screen blanking is not particularly restricted, this
Field technical staff can select according to actual needs, such as can be not less than 80% for 3-6mm accounting.It is advantageous as a result,
In the energy consumption for saving subsequent grinding process.
Embodiment according to the present utility model, ore grinding unit 400 include the ball mill 41 being sequentially connected, pump pond 42, slurry
Pump 43 and cyclone 44, ball mill 41 are connected with the screening outlet 362 of third vibrating screen 36, and are suitable for third Vibration Screen
Blanking carries out wet ground, and to obtain wet-milling ore pulp, wet-milling ore pulp carries out separating treatment, to obtain overflow and sand setting.Tool
Body, third Vibration Screen blanking enters ball mill and carries out ball-milling treatment, then through pump pond buffering, is pumped to cyclone through slurry
It is separated, obtains overflow and sand setting.Inventors have found that ball mill and cyclone form closed circuit unit, ball mill wet ball-milling
Afterwards, the thinner wet-milling ore pulp of granularity can be obtained, after cyclone separates, the satisfactory overflow of granularity is sent to subsequent processing, no
Satisfactory sand setting returns to ball mill.It should be noted that the concrete type of ball mill and cyclone is not particularly restricted,
Those skilled in the art can select according to actual needs, such as ball mill can be overflowball mill, and cyclone can
Think hydrocyclone.
According to the crush-grind system of the utility model embodiment, raw material carries out coarse crushing by coarse crushing unit, the first vibration after coarse crushing
Dynamic sieve minus mesh can be fed directly to fine ore bin, and the first Vibration Screen feeding send into unit fine crushing, is conducive in saving as a result,
The energy consumption of unit fine crushing, and improve the treatment effeciency of coarse crushing；In in unit fine crushing, using closed circuit screening operation, the first vibration
It is sent after sieve oversize is broken in the second vibrating screen and is sieved, the second Vibration Screen blanking is sent to fine ore bin, on the second Vibration Screen
Material is sieved through the second vibrating screen again after fine crushing, can significantly save as a result, in energy consumption fine crushing, and processing fine crushing in improving
Efficiency；Pre-grinding is carried out by sending the first Vibration Screen blanking in fine ore bin and the second Vibration Screen blanking to high-pressure roller mill
Mine can reduce ball mill mill feed size in ore grinding unit, reduce the energy consumption of ore grinding unit, and current application shows identical
P80Compared with the product being crushed using conventional crusher, energy consumption is reduced product through high pressure roller mill crusher machine under the conditions of (about 7mm)
Between 15%~30%, using high-pressure roller mill as pre-grinding equipment, deeper time is realized " much broken and lessmill ", and due to can
Obtain it is lower enter grinding rate (F80 can reach 3mm~6mm), will further decrease the comprehensive energy consumption of crush-grind system；Fine ore bin
Be provided be conducive to adjust coarse crushing unit and in lack of uniformity between unit and pre- ore grinding unit and ore grinding unit fine crushing, realize pre-
Ore grinding unit and ore grinding unit use 24 continuous throughout the twenty-four hour24 systems；The setting of choke feeding bucket can guarantee high pressure before high-pressure roller mill
The working performance of roller mill；Pre- ore milling product buffering hopper is set before third vibrating screen, be conducive to control third vibrating screen to
The stability of mine, and third Vibration Screen feeding may return to high-pressure roller mill, realizes the closed-circuit operation of pre- ore grinding, significantly improves
The working efficiency of pre- ore grinding and the operating power consumption for being conducive to save pre- ore grinding；In ore grinding unit, ball mill is closed with cyclone composition
After ball mill wet ball-milling, the thinner wet-milling ore pulp of granularity can be obtained, after cyclone separates, granularity meets the requirements in road unit
Overflow send to subsequent processing, undesirable sand setting returns to ball mill.The system is by the way that high-pressure roller mill to be arranged as a result,
After the fine ore bin of conventional muck process, using closed-circuit operation, 24 continuous throughout the twenty-four hour24 systems are used together with Grinding procedure, are avoided
The problem of edge effect existing in the prior art, closed circuit screening, ore storage bin storage and blocking, it is conducive to production management.
Embodiment according to the present utility model, with reference to Fig. 2, the coarse crushing unit of above-mentioned crush-grind system further comprises: first
Belt conveyor 500.
Embodiment according to the present utility model, the first belt conveyor 500 respectively with coarse crushing crusher 13 and coarse crushing mine mine
Storehouse 14 be connected, and the first belt conveyor 500 be equipped with weighing belt 51, and be suitable for by coarse crushing mine it is weighed after send to coarse crushing mine
Ore storage bin.It is advantageously implemented the connection of coarse crushing crusher Yu coarse crushing ore storage bin as a result, realizes the reasonable arrangement of coarse crushing unitary space, together
When can pass through weighing belt record coarse crushing mine amount.
Embodiment according to the present utility model, with reference to Fig. 3, unit fine crushing further comprises in above-mentioned crush-grind system:
Two belt conveyors 600, third belt conveyor 700 and the 4th belt conveyor 800.
Embodiment according to the present utility model, oversize of second belt conveyor 600 respectively with the first vibrating screen 16 go out
The broken preceding surge bunker 21 in of mouth 161 is connected, and the second belt conveyor 600 is equipped with iron remover 61, and is suitable for the first vibration
Dynamic sieve oversize send into broken preceding surge bunker after except iron.It is advantageously implemented the first vibrating screen broken preceding surge bunker in as a result,
Connection, the i.e. connection of realization coarse crushing unit unit fine crushing in are advantageously implemented the conjunction of coarse crushing unit unitary space fine crushing in
Reason arranges, while being conducive to remove the iron in coarse crushing mine, reduces the damage to subsequent process equipment.Third belt conveyor 700
Respectively in broken crusher 23, fine crusher 29 and in mine ore storage bin 24 fine crushing be connected, and set on third belt conveyor 700
Have a weighing belt 71, and be suitable for by middle muck and mine fine crushing it is weighed after send into mine ore storage bin fine crushing.It is broken in being advantageously implemented as a result,
The connection of crusher and fine crusher the mine ore storage bin fine crushing in, the reasonable arrangement of unitary space fine crushing in realization, while can remember
The amount that record passes through the product of third belt conveyor.Oversize of 4th belt conveyor 800 respectively with the second vibrating screen 26 goes out
Mouth 261 is connected with preceding surge bunker 27 fine crushing, and the 4th belt conveyor 800 is equipped with iron remover 81, and is suitable for the second vibration
Dynamic sieve oversize is sent after except iron to preceding surge bunker fine crushing.It is advantageously implemented the second vibrating screen and preceding surge bunker fine crushing as a result,
Connection, the reasonable arrangement of unitary space fine crushing in realization, while the iron in the second Vibration Screen feeding can be removed, it reduces to subsequent
The damage of process equipment.
Embodiment according to the present utility model, with reference to Fig. 4, the pre- ore grinding unit of above-mentioned crush-grind system further comprises: the
Five belt conveyors 900, the 6th belt conveyor 1000, the 7th belt conveyor 1100 and the 8th belt conveyor 1200.
Embodiment according to the present utility model, minus mesh of the 5th belt conveyor 900 respectively with the first vibrating screen 16 go out
The screening outlet 262 of the 162, second vibrating screen 26 of mouth is connected with fine ore bin 31, and the 5th belt conveyor 900 is equipped with skin
Belt scale 91, and be suitable for by the first Vibration Screen blanking and the second Vibration Screen blanking it is weighed after send to fine ore bin, while can lead to
Cross the amount that weighing belt records final muck product.6th belt conveyor 1000 respectively with the 6th batcher 32 and choke feeding bucket
33 are connected, and the 6th belt conveyor 1000 is equipped with weighing belt 1010 and iron remover 1020.And it is suitable for the 6th batcher
In miberal powder it is weighed and except being sent after iron to choke feeding bucket.Thus, it can be achieved that the connection of the 6th batcher and choke feeding bucket,
It realizes the quantitative feeding to choke feeding bucket, while can guarantee the performance of subsequent process equipment.7th belt conveyor 1100 with
High-pressure roller mill 34 ease up slug bucket 35 be connected, and be suitable for by the resulting pre- ore milling product of high-pressure roller mill send to buffering hopper.
It is advantageously implemented the reasonable arrangement of pre- ore grinding unitary space as a result,.The sieve of 8th belt conveyor 1200 and third vibrating screen 36
Feeding outlet 361 is connected with feed hopper 33, and the 8th belt conveyor 1200 is equipped with iron remover 1210, and is suitable for third
Vibration Screen feeding is sent after except iron to choke feeding bucket.It is advantageously implemented the closed-circuit operation of pre- ore grinding unit as a result, leads to simultaneously
It crosses except iron can be further reduced the damage to subsequent process equipment.
Embodiment according to the present utility model, with reference to Fig. 5, the ore grinding unit of above-mentioned crush-grind system further comprises: the 9th
Belt conveyor 1300.
Embodiment according to the present utility model, the screening outlet of the 9th belt conveyor 1300 and third vibrating screen 36
362 are connected with ball mill 41, and are suitable for sending third Vibration Screen blanking to ball mill.Thus, it can be achieved that pre-grinding mine unit with
The connection of ore grinding unit.
Embodiment according to the present utility model, above-mentioned crush-grind system at least have the advantages that one of what follows:
According to the crush-grind system of the utility model one embodiment, the conventional three section of one closed circuit+high pressure roller of innovative proposition
Grinding machine is closed circuit+the rock processing technology of ball milling process；
According to the crush-grind system of the utility model further embodiment, innovatively using high-pressure roller mill as conventional broken
Pre- grinding attachment after mine order, rather than at present as the fine crushing device or ultrafine grinding equipment in muck process in industrial production；
According to the crush-grind system of another embodiment of the utility model, ore is added after muck process, before ball milling process
Pre- Grinding procedure significantly reduces the mill feed size of ball mill, up to P80=3-6mm, with existing P80=7-10mm is compared, tool
There is significant progress；
According to the crush-grind system of another embodiment of the utility model, high-pressure roller mill is set to conventional muck process and is produced
After product ore storage bin, realizes and use continuous duty for 24 hours together with Grinding procedure；
According to the crush-grind system of another embodiment of the utility model, high-pressure roller mill uses closed-circuit operation, effectively avoids
The problems such as edge effect present in high-pressure roller mill application process at present, closed circuit screening, ore storage bin storage and blocking；
According to the crush-grind system of another embodiment of the utility model, the industry of national " energy-saving " has been responded well
Policy has important especially for the field or area that ore dressing related system comprehensive energy consumption is restricted or allowance construction threshold is high
Application value；
According to the crush-grind system of another embodiment of the utility model, for broken using coarse crushing+Semi-autogenous Grinding Technology or routine
The ore that grinding process is not applicable or the higher raw ore characteristic of energy consumption is stone, there is bigger dissemination.
In order to facilitate understanding, the method for carrying out comminution using above-mentioned crush-grind system is described in detail below, according to this
The embodiment of utility model, with reference to Fig. 6, this method comprises:
S100: the raw ore in raw material cabin is supplied by the first batcher to coarse crushing crusher and carries out coarse crushing, coarse crushing mine warp
Second batcher supplies to the first vibrating screen and carries out screening process
In the step, raw ore is sent through raw material cabin to the first batcher, is sent through the first batcher to coarse crushing crusher and is carried out slightly
Broken processing, resulting coarse crushing mine are sent to coarse crushing miberal powder ore storage bin, then are sent through the second batcher to the first vibrating screen and carried out screening process,
Obtain the lesser first Vibration Screen blanking of partial size and the biggish first Vibration Screen feeding of partial size.Be conducive in saving as a result,
The energy consumption of unit fine crushing, and improve the treatment effeciency of coarse crushing.It should be noted that the specific partial size of the first Vibration Screen blanking can
To be selected according to actual needs, such as can be for not less than 13mm.
S200: by the first Vibration Screen feeding through third batcher supply into broken crusher carry out in it is broken, middle muck is again
It supplies through the 4th batcher to the second vibrating screen and carries out screening process, the second Vibration Screen feeding is supplied through the 5th batcher to thin
Broken crusher carry out it is fine crushing, mine fine crushing be back in mine ore storage bin fine crushing
In the step, the first Vibration Screen feeding send into broken preceding surge bunker in coarse crushing unit, through third batcher send to
In broken crusher carry out in it is broken, obtained middle muck send into mine ore storage bin fine crushing, then send through the 4th batcher to the second vibration
Sieve carries out screening process, obtains the second Vibration Screen feeding of the second small Vibration Screen blanking of partial size and partial size greatly, the second vibration
Dynamic sieve oversize is sent to preceding surge bunker fine crushing, is sent through the 5th batcher to fine crusher and is carried out fine crushing, resulting mine fine crushing is sent
The mine ore storage bin fine crushing into.Inventors have found that in unit fine crushing, by using closed circuit screening operation, on the first Vibration Screen
It is sent after material is broken in the second vibrating screen and is sieved, the second Vibration Screen blanking is sent to fine ore bin, and the second Vibration Screen feeding is through thin
Sieved again through the second vibrating screen after broken, can significantly save in energy consumption fine crushing, and treatment effeciency fine crushing in improving.It needs
Bright, the specific partial size of the second Vibration Screen blanking can be selected according to actual needs, for example, can for not less than
13mm。
S300: the first Vibration Screen blanking and the second Vibration Screen blanking are supplied through the 6th batcher to high-pressure roller mill
Pre- ore grinding is carried out, pre- ore milling product is sieved through third vibrating screen again
In the step, fine ore bin is for laying in the first Vibration Screen blanking and the second Vibration Screen blanking, then through the 6th
Batcher, which is sent to choke feeding bucket, to be buffered spare, is carried out pre- ore grinding sending to high-pressure roller mill, is buffered hopper through pre- ore milling product
After buffering, to send to third vibrating screen and carry out screening process, satisfactory third Vibration Screen blanking is sent to subsequent ore grinding unit,
It is spare that undesirable third Vibration Screen feeding returns to choke feeding bucket.Inventors have found that by by fine ore bin first
Vibration Screen blanking and the second Vibration Screen blanking are sent to high-pressure roller mill and carry out pre- ore grinding, and ball mill mill feed size can be reduced,
The energy consumption of ore grinding unit is reduced, and current application shows in identical P80Production through high pressure roller mill crusher machine under the conditions of (about 7mm)
Product are compared with the product being crushed using conventional crusher, and energy consumption reduces between 15%~30%, using high-pressure roller mill conduct
Pre-grinding equipment, deeper time realize " much broken and lessmill ", and due to can get it is lower enter grinding rate (F80 can reach 3mm~
6mm), it will further decrease the comprehensive energy consumption of crush-grind system；Being provided with for fine ore bin is conducive to adjust coarse crushing unit list fine crushing in
First lack of uniformity between pre- ore grinding unit and ore grinding unit realizes that pre- ore grinding unit and ore grinding unit are continuous using 24 hours
Duty；The setting of choke feeding bucket can guarantee the working performance of high-pressure roller mill before high-pressure roller mill；Before third vibrating screen
Pre- ore milling product buffering hopper is set, is conducive to control third vibrating screen to the stability of mine, and third Vibration Screen feeding can
It is back to high-pressure roller mill, realizes the closed-circuit operation of pre- ore grinding, significantly improve the working efficiency of pre- ore grinding and is conducive to save pre-
The operating power consumption of ore grinding.It should be noted that in order to guarantee that pre- ore grinding unit and ore grinding unit can work for 24 hours, fine ore bin
Available capacity can be to meet amount handled by pre- ore grinding unit and ore grinding unit 24 hours.
The partial size of one embodiment according to the present utility model, the first Vibration Screen blanking and the second Vibration Screen blanking is simultaneously
It is not particularly limited, those skilled in the art, which can according to need, to be selected, such as can be for the accounting no more than 10mm not
Less than 80%.Be conducive to save the energy consumption of subsequent pre- ore grinding and grinding process as a result,.
The partial size of further embodiment according to the present utility model, third Vibration Screen blanking is not particularly restricted, this
Field technical staff can select according to actual needs, such as can be not less than 80% for 3-6mm accounting.It is advantageous as a result,
In the energy consumption for saving subsequent grinding process.
S400: third Vibration Screen blanking being supplied to ball mill and carries out wet ground, and wet-milling ore pulp is supplied through Pulp pump
Separating treatment is carried out to cyclone
In the step, third Vibration Screen blanking enters ball mill and carries out ball-milling treatment, then through pump pond buffering, through slurry
It is pumped to cyclone to be separated, obtains overflow and sand setting.Inventors have found that ball mill and cyclone form closed circuit unit, ball
After grinding machine wet ball-milling, the thinner wet-milling ore pulp of granularity can be obtained, after cyclone separates, the satisfactory overflow of granularity send to
Subsequent processing, undesirable return ball mill.It should be noted that the concrete type of ball mill and cyclone is not by spy
It does not limit, those skilled in the art can select according to actual needs, such as ball mill can be overflowball mill, rotation
Flowing device can be hydrocyclone.
According to the method for implementing comminution using crush-grind system of the utility model embodiment, raw material is carried out by coarse crushing unit
Coarse crushing, the first Vibration Screen blanking can be fed directly to fine ore bin after coarse crushing, and the first Vibration Screen feeding send into unit fine crushing,
Be conducive to the energy consumption of unit fine crushing in saving as a result, and improve the treatment effeciency of coarse crushing；In in unit fine crushing, use is closed circuit
Screening operation, send to the second vibrating screen after the first Vibration Screen feeding is broken in and sieves, and the second Vibration Screen blanking is sent to fine ore
Storehouse, the second Vibration Screen feeding are sieved through the second vibrating screen again after fine crushing, can significantly save as a result, in energy consumption fine crushing,
And treatment effeciency fine crushing in improving；It is supreme by sending the first Vibration Screen blanking in fine ore bin and the second Vibration Screen blanking
Pressure roller grinding machine carries out pre- ore grinding, can reduce ball mill mill feed size in ore grinding unit, reduces the energy consumption of ore grinding unit, and at present
Using showing in identical P80Product and the production broken using conventional crusher through high pressure roller mill crusher machine under the conditions of (about 7mm)
Condition ratio, energy consumption reduce between 15%~30%, and using high-pressure roller mill as pre-grinding equipment, deeper time realizes " more
Broken few mill ", and due to can get it is lower enter grinding rate (F80 can reach 3mm~6mm), will further decrease crush-grind system
Comprehensive energy consumption；Being provided with of fine ore bin be conducive to adjust coarse crushing unit and between unit and pre- ore grinding unit and ore grinding unit fine crushing
Lack of uniformity, realize pre- ore grinding unit and ore grinding unit using 24 continuous throughout the twenty-four hour24 systems；Choke feeding before high-pressure roller mill
The setting of bucket can guarantee the working performance of high-pressure roller mill；Pre- ore milling product buffering hopper is set before third vibrating screen, favorably
In control third vibrating screen to the stability of mine, and third Vibration Screen feeding may return to high-pressure roller mill, realize pre- ore grinding
Closed-circuit operation, significantly improve the working efficiency of pre- ore grinding and be conducive to save the operating power consumption of pre- ore grinding；In ore grinding unit, ball
Grinding machine and cyclone form closed circuit unit, after ball mill wet ball-milling, the thinner wet-milling ore pulp of granularity can be obtained, through cyclone point
From rear, the satisfactory overflow of granularity is sent to subsequent processing, and undesirable sand setting returns to ball mill.The system is logical as a result,
After crossing the fine ore bin that high-pressure roller mill is set to conventional muck process, using closed-circuit operation, 24 are used together with Grinding procedure
Continuous throughout the twenty-four hour24 system, the problem of avoiding edge effect existing in the prior art, closed circuit screening, ore storage bin storage and blocking,
Conducive to production management.
It should be noted that above-mentioned be equally applicable to this using comminution system for feature and advantage described in crush-grind system
The method that system implements comminution, details are not described herein again.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combination and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (7)
1. a kind of crush-grind system characterized by comprising
Coarse crushing unit, the coarse crushing unit include the raw material cabin being sequentially connected, the first batcher, coarse crushing crusher, coarse crushing mine mine
Storehouse, the second batcher, the first vibrating screen；
In unit fine crushing, it is described in unit fine crushing include broken preceding surge bunker in being sequentially connected, third batcher, in it is broken broken
Machine, in mine ore storage bin, the 4th batcher, the second vibrating screen, preceding surge bunker fine crushing, the 5th batcher and fine crusher fine crushing, institute
Broken preceding surge bunker is connected with the outlet of the oversize of first vibrating screen in stating, the preceding surge bunker fine crushing and second vibration
The oversize outlet of sieve is connected, the fine crusher with it is described in mine ore storage bin fine crushing be connected；
Pre- ore grinding unit, the pre- ore grinding unit include the fine ore bin being sequentially connected, the 6th batcher, choke feeding bucket, high pressure
Roller mill, pre- ore milling product buffering hopper and third vibrating screen, the screening outlet of the fine ore bin and first vibrating screen
It is connected with the screening outlet of second vibrating screen, oversize outlet and the choke feeding bucket phase of the third vibrating screen
Even；
Ore grinding unit, the ore grinding unit include the ball mill being sequentially connected, pump pond, Pulp pump and cyclone, the ball mill
It is connected with the screening outlet of the third vibrating screen.
2. system according to claim 1, which is characterized in that the coarse crushing unit further comprises:
First belt conveyor, first belt conveyor respectively with the coarse crushing crusher and the coarse crushing mine ore storage bin phase
Even, and first belt conveyor is equipped with weighing belt.
3. system according to claim 1 or 2, which is characterized in that unit fine crushing further comprises in described:
Second belt conveyor, second belt conveyor respectively with the oversize of first vibrating screen outlet and in it is broken before
Surge bunker is connected, and second belt conveyor is equipped with iron remover；
Third belt conveyor, the third belt conveyor respectively with it is described in broken crusher, the fine crusher and institute
Mine ore storage bin fine crushing is connected in stating, and the third belt conveyor is equipped with weighing belt；
4th belt conveyor, the 4th belt conveyor respectively with the oversize of second vibrating screen outlet and it is described carefully
Broken preceding surge bunker is connected, and the 4th belt conveyor is equipped with iron remover.
4. system according to claim 1, which is characterized in that the pre- ore grinding unit further comprises:
5th belt conveyor, the 5th belt conveyor respectively with the screening outlet of first vibrating screen, described
The screening outlet of two vibrating screens is connected with the fine ore bin, and the 5th belt conveyor is equipped with weighing belt；
6th belt conveyor, the 6th belt conveyor respectively with the 6th batcher and the choke feeding bucket phase
Even, and the 6th belt conveyor is equipped with weighing belt and iron remover；
7th belt conveyor, the 7th belt conveyor are connected with the high-pressure roller mill and the buffering hopper；
8th belt conveyor, the oversize outlet of the 8th belt conveyor and the third vibrating screen and it is described be crowded with to
Hopper is connected, and the 8th belt conveyor is equipped with iron remover.
5. system according to claim 1, which is characterized in that the ore grinding unit further comprises:
9th belt conveyor, the screening outlet and the ball mill of the 9th belt conveyor and the third vibrating screen
It is connected.
6. system according to claim 1, which is characterized in that first batcher is heavy-duty plate feeder, described
Coarse crushing crusher is jaw crusher.
7. system according to claim 1, which is characterized in that broken crusher is standard cone crusher in described, described
Fine crusher is short head cone crusher.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821260320.0U CN208944319U (en) | 2018-08-06 | 2018-08-06 | Crush-grind system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821260320.0U CN208944319U (en) | 2018-08-06 | 2018-08-06 | Crush-grind system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109046719A (en) * | 2018-08-06 | 2018-12-21 | 中国恩菲工程技术有限公司 | Crush-grind system and method |
| CN113058726A (en) * | 2021-03-26 | 2021-07-02 | 中冶北方（大连）工程技术有限公司 | System for improving screening closed-circuit operation rate of high-pressure roller mill |
-
2018
- 2018-08-06 CN CN201821260320.0U patent/CN208944319U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109046719A (en) * | 2018-08-06 | 2018-12-21 | 中国恩菲工程技术有限公司 | Crush-grind system and method |
| CN113058726A (en) * | 2021-03-26 | 2021-07-02 | 中冶北方（大连）工程技术有限公司 | System for improving screening closed-circuit operation rate of high-pressure roller mill |
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