CN108940540A - A method of using impact grinding quick obtaining ore - Google Patents
A method of using impact grinding quick obtaining ore Download PDFInfo
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- CN108940540A CN108940540A CN201811128444.8A CN201811128444A CN108940540A CN 108940540 A CN108940540 A CN 108940540A CN 201811128444 A CN201811128444 A CN 201811128444A CN 108940540 A CN108940540 A CN 108940540A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
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Abstract
The invention discloses a kind of methods using impact grinding quick obtaining ore, belong to mineral engineering and are crushed field.By by ore gravitional force, ore kinetic energy and crushing medium kinetic energy realize the mechanical strike of maximum probability, ejection is hit and movement head-on collision effect, realize the effective broken of ore, fine ore is generated to greatest extent, and then concentrate is obtained by ore dressing, the present invention makes full use of the advantage of mine landform or infrastructure project depth displacement, ore gravitional force is used for ore reduction to the maximum extent, with the high impact grinding of energy efficiency for main crumbling method, in addition to the relatively high coarse crushing technique of capacity usage ratio, eliminate energy efficiency in traditional handicraft it is lower in it is broken, it is fine crushing, the link of primary grinding and secondary grinding, reduce ore reduction energy consumption, improve crushing efficiency, simplification shortens process flow, reduce equipment investment and broken cost.
Description
Technical field
The present invention relates to mineral engineerings to be crushed field more particularly to a kind of side using impact grinding quick obtaining ore
Method.
Background technique
Magnetic iron ore is the major product and the most important raw material of metallurgical industry of China's ferrous metal mine.China's magnetic
Iron ore deposit is abundant, but grade is mainly 20-45%, needs to be used to be sintered after broken, ore grinding and ore dressing become concentrate
It smelts.The traditional handicraft of the broken processing of iron ore is three sections of broken and two stage grindings, and process flow is complicated, and specific energy consumption is excessively high.
As can fundamentally reducing the specific energy consumption of the broken processing of iron ore, only energy conservation one every year can be a large amount of to save for country
Energy investment generates huge economic benefit and society and environmental benefit.Conventional energy-saving method is to a certain degree at present
On reduce enterprise's process energy consumption, but be difficult fundamentally to change average unit energy consumption mistake in China's iron ore crushing processing process
High, the lower production status of capacity usage ratio.
Broken and ore grinding final purpose is to realize the separation of ore particles and gangue particle, improves useful mine to greatest extent
Object content.Impact grinding is a kind of efficient detritus mode.After the 1980s, many scholars start to carry out rock punching
Break up broken research.Use within Li Xibing (1988) technique study of Hopkinson pressure bar stress-wave loading related with driling explosion
Rock-breaking mechanics property, investigated the influence of different stress wave perdurabgilities and wave amplitude to breaking strength and crushing effect；
Guo Lianjun (2014), for SHPB Impulsive load test material, has studied magnetic iron ore in different impact with magnetite quartzite
Lower energy dissipation rule and LUMPINESS DISTRIBUTION situation are acted on, establishes breakdown products average-size and characteristic size and energy consumption respectively
Negative power function relational model.Niu Leilei, Zhu Wancheng (2014) have developed the pendulum SHPB for being suitble to middle strain rate Impulsive load
Compression bar impact test apparatus tests the absorption energy that rock and iron ore are crushed, obtains the theory of crushing energy and broken results
Relationship.Hu Zhenzhong (2016) carries out monolithic ore drop impact crushing test to anthracite and bituminous coal, with product particle size modulus
t10For particle size after cracking index, research is obtained than impact energy consumption with product t10Build up index increase.Napier(1996) and
Iron ore individual particle impact energy consumption model Whyte(2005) has been researched and proposed with pendulum impact test by dropping hammer respectively, has been built
Functional relation between vertical impact grinding energy and product granularity modulus.
Although the above research and disclosed apparatus and method preferably embody the broken effect of high-efficient impacting, only limit
In laboratory research, such as required to industrial production, it is necessary to meet the production for continuously giving mine Yu quick ore removal from raw ore to concentrate
It needs, reduces crushing circuit and equipment investment, the use of impact grinding quick obtaining concentrate is to reduce ore reduction energy consumption, raising choosing
The effective ways of mine efficiency.
Summary of the invention
It is low that the purpose of the present invention is to solve crushing efficiencies, comminution energy conssumption height and the big problem of equipment investment, and proposes
A kind of method using impact grinding quick obtaining ore, it is low effectively to solve crushing efficiency, and comminution energy conssumption is high and equipment investment
Big problem.
To achieve the goals above, present invention employs following technical solutions:
A method of using impact grinding quick obtaining ore, including jaw crusher, scalping, throwing impact grinding storehouse, fall
Mine impact grinding storehouse and impact comminution storehouse, jaw crusher outlet lower section are provided with scalping, and the scalping lower right-hand side is set
It is equipped with drawing chute A, lower section is provided with vibrating screen A, the vibrating screen A left side outlet and inclination throwing adhesive tape on the left of the scalping
It is flexibly connected on the right side of conveyer, connects on the left of the inclination throwing rubber conveyer with fixed on the right side of the upper end of throwing impact grinding storehouse
It connects, the throwing impact grinding orlop end is fixedly connected with the upper end drawing chute B, and the outlet of the lower end the drawing chute B is provided with
Horizontal rubber belt conveyor B, the horizontal rubber belt conveyor B right end lower section are provided with vibrating screen B, the outlet of the lower end the vibrating screen B
It is fixedly connected with impact comminution storehouse upper center left side；
The drawing chute A lower exit port is provided with horizontal rubber belt conveyor A, sets below the horizontal rubber belt conveyor A right end
It is equipped with and falls mine impact grinding storehouse, the mine impact grinding orlop end that falls is fixedly connected with the upper end drawing chute C, the drawing chute
The outlet of the lower end C is provided with horizontal rubber belt conveyor C, and the left end horizontal rubber belt conveyor C lower section and vibrating screen C right end top are solid
Fixed connection, the left end vibrating screen C lower section and impact comminution storehouse upper end right side are fixedly connected；
Impact comminution orlop end is provided with main motor, and the main motor upper end is fixedly connected with pulverizer main shaft lower end, institute
It states impact comminution storehouse internal axis movable sleeve and is connected to pulverizer main shaft.
Preferably, it is fixedly connected at left and right sides of the pulverizer main shaft with the inner one end of impact grinding bar, the impact cutting
Broken bar is provided with four, and the impact grinding bar is from top to bottom successively by spherical surface manganese steel pricker medium, spherical surface manganese steel pricker and manganese steel side
Four kinds of hammer blending agent, manganese steel plane set-hammer medium and sawtooth medium media are made.
Preferably, left side wall surface is provided with shock plate in the middle part of throwing impact grinding storehouse, and the mine that falls rushes inner bottom surface
It is provided with shock plate, spherical manganese steel pricker, the shock plate top for falling mine impact grinding storehouse are fixedly installed on the shock plate
It is provided with high pressure air port.
Preferably, the pulverizer main shaft top is fixedly connected with driven gear axle center, the driven gear and driving cog
Wheel engagement connection, the transmission gear axle center are fixedly connected with transmission shaft right end, and the transmission shaft left end and auxiliary-motor right end are solid
Fixed connection, impact grinding storehouse upper left are provided with auxiliary-motor.
Preferably, the left and right sides is fixedly installed with manganese steel ball nail, the impact comminution orlop inside the impact comminution storehouse
Portion is provided with high frequency vibration screen, is provided with spray device, impact comminution orlop portion and high frequency vibration screen below the high frequency vibration screen
Between be provided with clout outlet.
Preferably, include the following steps；
S1, magnet green ore enter scalping after jaw crushing crusher machine, and the bulk on sieve, which enters, falls mine impact grinding storehouse, under sieve
Fritter and miberal powder vibrating screen A screening after enter throwing impact grinding storehouse；
S2, throwing impact grinding storehouse and the product for falling mine impact grinding storehouse sieve on vibrating screen B and vibrating screen C, respectively under sieve
Fine ore enters ore dressing, and oversize enters impact comminution storehouse；
S3, impact comminution storehouse using layering impact comminution method, crushing medium on impact grinding bar to ore apply point,
Line, face and combinations thereof Impulsive load capture strike ore；
The impact grinding bar of pulverizer main shaft bottom in S4, impact comminution storehouse is equipped with manganese steel sawtooth crushing medium and bottom
The distance between high frequency shale shaker is-mm, crushes little particle ore using manganese steel sawtooth crushing medium or little particle is driven to fly up,
Downward air pressure is generated simultaneously, and miberal powder is promoted to pass through high frequency shale shaker；
S5, smashed miberal powder are sieved by the high frequency shale shaker in impact comminution orlop portion, and minus sieve mine enters ore dressing；It does not crush
Particle is exported through clout and is discharged, and is again introduced into impact comminution storehouse after vibrating screen B screening.
Compared with prior art, the present invention provides a kind of method using impact grinding quick obtaining ore, have with
It is lower the utility model has the advantages that
(1) machinery of maximum probability is realized in the method for the present invention by ore gravitional force, ore kinetic energy and crushing medium kinetic energy
Strike, ejection are hit and movement head-on collision effect, realizes the effective broken of ore, generates fine ore to greatest extent, and then pass through choosing
Mine obtains concentrate, and the present invention makes full use of the advantage of mine landform or infrastructure project depth displacement, to the maximum extent by ore gravity
Potential energy is used for ore reduction, with the high impact grinding of energy efficiency for main crumbling method, except capacity usage ratio is relatively high
Outside coarse crushing technique, eliminate energy efficiency in traditional handicraft it is lower in broken, fine crushing, primary grinding and secondary grinding link,
Ore reduction energy consumption is reduced, crushing efficiency is improved, simplification shortens process flow, reduces equipment investment and be broken into
This；
(2) ore after jaw crusher coarse crushing enters scalping, and the ore under scalping sieve carries out vibrosieve using vibrating screen A,
The net degree of vibrating screen A sieve is the average value of magnetic iron ore disseminated grain size, and the fine ore under sieving enters ore dressing and obtains concentrate, sieve after collecting
On fritter ore put to inclination throwing rubber conveyer, inclination throwing rubber conveyer be arranged accelerator, to fritter ore
Accelerated, accelerate thrown pilling when fritter ore leaves belt, and adjust the height that ore needs to fall, adjusts inclination glue
Inclination angle with conveyer determines the width in throwing impact grinding storehouse；Manganese steel pricker is inlayed on shock plate in throwing impact grinding storehouse,
Fritter ore generates point loading when impacting, the effect of energy concentration promotes ore reduction；Muck is generated after fritter ore throwing is broken
Drawing chute B is fallen into fine ore；Muck and fine ore are transferred to horizontal rubber belt using the method for stop vibratory ore-drawing and are conveyed by drawing chute B
Muck and fine ore are delivered to vibrating screen B by machine B, horizontal rubber belt conveyor B, and drawing chute B stop vibratory ore-drawing controlled level adhesive tape is defeated
The ore flow on machine B is sent, enters ore dressing after the fine ore collection under vibrating screen B sieve and obtains concentrate, fragment enters impact powder on sieve
Broken storehouse carries out impact comminution.
3. the bulk entrance drawing chute on scalping sieve, through stop vibratory ore-drawing to horizontal rubber belt conveyor A, horizontal rubber belt is defeated
Machine A is sent to transfer ore to mine impact grinding storehouse progress freely falling body impact grinding is fallen, so that a lump ore stone is broken into and is more than or equal to
A fragment is advisable；Drawing chute A makes same vertical line by the ore flow on stop vibratory ore-drawing controlled level travelling belt A
On lump ore successively fall one by one, the time interval for falling mine impact can be such that the rock fragments of first falling impacts roll to putting
Mine funnel C, makes the direct impact cutting slashings of every lump ore stone, rather than the rock fragments loosened.Fall shock plate in mine impact grinding storehouse
On the manganese steel pricker inlayed, point loading is generated when impacting lump ore, the effect of energy concentration promotes ore reduction；On shock plate
Side setting high pressure air port is provided high-pressure blast to impact plate face, is promoted rock fragments and miberal powder by the way of high pressure air stream
Flowing, prevents fragment and miberal powder residual buildup, influences postorder ore freely falling body impact grinding effect.Freely falling body impact grinding
The muck and fine ore of generation enter horizontal rubber belt conveyor C through drawing chute C, and horizontal rubber belt conveyor C is defeated by muck and fine ore
It send to vibrating screen C, the sieve net degree of vibrating screen C is the average value of magnetic iron ore disseminated grain size, and the fine ore under sieving is collected laggard selected
Mine obtains magnetite concentrate, and the muck on sieve enters impact grinder and carries out impact comminution.
Detailed description of the invention
Fig. 1 is a kind of process structure signal of method using impact grinding quick obtaining ore proposed by the present invention
Figure；
Fig. 2 is a kind of part enlarged structure schematic diagram of the method using impact grinding quick obtaining ore proposed by the present invention.
Figure label explanation:
1 jaw crusher, 2 scalpings, 3 vibrating screen A, 4 driven gears, 5 drawing chute A, 6 inclination throwing rubber conveyers, 7 levels
Rubber conveyer A, 8 throwing impact grinding storehouses, 9 fall mine impact grinding storehouse, 10 shock plates, 11 high pressure air ports, 12 drawing chute B,
13 drawing chute C, 14 horizontal rubber belt conveyor B, 15 horizontal rubber belt conveyor C, 16 vibrating screen B, 17 vibrating screen C, 18 impact powder
Broken storehouse, 19 pulverizer main shafts, 20 impact grinding bars, 21 main motors, 22 auxiliary-motors, 23 manganese steel balls nail, 24 high frequency shale shakers, more than 25
Material outlet, 26 spherical surface manganese steel pricker media, 27 manganese steel plane set-hammer media, 28 sawtooth media, 29 spherical surface manganese steel prickers are mixed with manganese steel plane set-hammer
Medium, 30 transmission gears, 31 transmission shafts.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
Embodiment 1:
A method of using impact grinding quick obtaining ore, including jaw crusher 1, scalping 2, throwing impact grinding storehouse 8,
Mine impact grinding storehouse 9 and impact comminution storehouse 18 are fallen, the outlet of jaw crusher 1 lower section is provided with scalping 2, and 2 lower right-hand side of scalping is set
It is equipped with drawing chute A5,2 left side lower section of scalping is provided with vibrating screen A3, vibrating screen A3 left side outlet and inclination throwing adhesive tape conveying
It is flexibly connected, is fixedly connected on the right side of 6 left side of inclination throwing rubber conveyer and 8 upper end of throwing impact grinding storehouse, throwing on the right side of machine 6
8 bottom end of impact grinding storehouse is fixedly connected with the upper end drawing chute B12, and it is defeated that the outlet of the lower end drawing chute B12 is provided with horizontal rubber belt
Machine B14 is sent, vibrating screen B16, the outlet of the lower end vibrating screen B16 and impact comminution are provided with below horizontal rubber belt conveyor B14 right end
It is fixedly connected on the left of 18 upper center of storehouse；
Drawing chute A5 lower exit port is provided with horizontal rubber belt conveyor A7, is provided with and falls below horizontal rubber belt conveyor A7 right end
Mine impact grinding storehouse 9 falls 9 bottom end of mine impact grinding storehouse and is fixedly connected with the upper end drawing chute C13, brings out under drawing chute C13
Mouth is provided with horizontal rubber belt conveyor C15, connects below the left end horizontal rubber belt conveyor C15 with fixed above vibrating screen C17 right end
It connects, is fixedly connected below the left end vibrating screen C17 with 18 upper end of impact comminution storehouse right side；
18 bottom end of impact comminution storehouse is provided with main motor 21, and 21 upper end of main motor is fixedly connected with 19 lower end of pulverizer main shaft, punching
It hits 18 internal axis movable sleeve of crushing bin and is connected to pulverizer main shaft 19；8 middle part left side wall surface of throwing impact grinding storehouse is provided with punching
Plate 10 is hit, 9 inner bottom surfaces of mine punching is fallen and is provided with shock plate 10, spherical manganese steel pricker is fixedly installed on shock plate 10, fall mine impact
High pressure air port 11 is provided with above the shock plate 10 of cracking cabin 9；
Ore after 1 coarse crushing of jaw crusher enters scalping 2, and the ore under scalping 2 is sieved carries out vibrosieve using vibrating screen A3,
The net degree of vibrating screen A3 sieve is the average value of magnetic iron ore disseminated grain size, and the fine ore under sieving enters ore dressing after collecting and obtains concentrate,
Fritter ore on sieve is put to inclination throwing rubber conveyer 6, and accelerator is arranged in inclination throwing rubber conveyer 6, to fritter
Ore is accelerated, and thrown pilling when fritter ore leaves belt is accelerated, and adjusts the height that ore needs to fall, and adjusting is inclined
The inclination angle of oblique rubber conveyer 6, determines the width in throwing impact grinding storehouse 8；It is inlayed on shock plate 10 in throwing impact grinding storehouse 8
Embedding manganese steel pricker, fritter ore generate point loading when impacting, the effect of energy concentration promotes ore reduction；Fritter ore throwing is broken
It generates muck afterwards and fine ore falls into drawing chute B12；Drawing chute B12 is transferred muck and fine ore using the method for stop vibratory ore-drawing
To horizontal rubber belt conveyor B14, muck and fine ore are delivered to vibrating screen B16, drawing chute B12 vibration by horizontal rubber belt conveyor B
The ore flow on Oredrawing control horizontal rubber belt conveyor B14 is moved, enters ore dressing after the fine ore collection under vibrating screen B16 sieve and obtains
Concentrate, fragment enters impact comminution storehouse 18 and carries out impact comminution on sieve；
Bulk on the sieve of scalping 2 enters No. 1 drawing chute 5, through stop vibratory ore-drawing to horizontal rubber belt conveyor A7, horizontal rubber belt conveying
Machine A7 transfers ore to the progress of mine impact grinding storehouse 9 freely falling body impact grinding is fallen, so that a lump ore stone is broken into more than or equal to 4
A fragment is advisable；Drawing chute A5 keeps same vertical by the ore flow on stop vibratory ore-drawing controlled level travelling belt A7
Lump ore on line successively falls one by one, fall mine impact time interval can make the rock fragments of first falling impacts roll to
Drawing chute C13, makes the direct impact cutting slashings of every lump ore stone, rather than the rock fragments loosened.It falls in mine impact grinding storehouse 9 and rushes
The manganese steel pricker inlayed on plate 10 is hit, point loading is generated when impacting lump ore, the effect of energy concentration promotes ore reduction；Punching
It hits and high pressure air port 11 is set above plate, provide high-pressure blast to impact plate face, promote ore broken by the way of high pressure air stream
Block and miberal powder flow, and prevent fragment and miberal powder residual buildup, influence postorder ore freely falling body impact grinding effect.Freely falling body
The muck and fine ore that impact grinding generates enter horizontal rubber belt conveyor C15, horizontal rubber belt conveyor C15 through drawing chute C13
Muck and fine ore are delivered to vibrating screen C17, the sieve net degree of vibrating screen C17 is the average value of magnetic iron ore disseminated grain size, under sieve
Fine ore collect after enter ore dressing and obtain magnetite concentrate, the muck on sieve enters impact grinder and carries out impact comminution.
Embodiment 2: based on embodiment 1 but different it is；
19 left and right sides of pulverizer main shaft is fixedly connected with the inner one end of impact grinding bar 20, and impact grinding bar 20 is provided with four
Root, impact grinding bar 20 from top to bottom successively by spherical surface manganese steel pricker medium 26, spherical surface manganese steel pricker and manganese steel plane set-hammer blending agent 29,
28 4 kinds of media of manganese steel plane set-hammer medium 27 and sawtooth medium are made；The fixed company in 19 top of pulverizer main shaft and 4 axle center of driven gear
It connects, driven gear 4 engages connection with transmission gear 30, and 30 axle center of transmission gear is fixedly connected with 31 right end of transmission shaft, transmission shaft
31 left ends are fixedly connected with 22 right end of auxiliary-motor, and 18 upper left of impact grinding storehouse is provided with auxiliary-motor 22；Impact comminution storehouse 18
The internal left and right sides is fixedly installed with manganese steel ball nail 23, and 18 bottom of impact comminution storehouse is provided with high frequency vibration screen 24, high frequency vibration screen 24
Lower section is provided with spray device, and clout outlet 25 is provided between 18 bottom of impact comminution storehouse and high frequency vibration screen 24；
Main motor 21 and auxiliary-motor 22 drive 19 high-speed rotation of pulverizer main shaft, 19 band of pulverizer main shaft when impact grinder works
Dynamic 20 high-speed rotation of impact grinding bar, impact grinding bar 20 pass through the crushing medium high speed strike ore inlayed, impact comminution storehouse
18 inner walls inlay manganese steel ball nail 23, reduce barrel abrasion, while generating rebound effect to ore, equidistant on pulverizer main shaft 19
Impact grinding bar 20 is installed, spacing is crushed and is designed according to revolving speed and ore fall time, smoothly fallen after guaranteeing ore reduction, pacified
Dress position suitably increases major axis diameter, increases installation site intensity, takes plasticity to protect or link mounting means, extends the main shaft longevity
Life；The impact grinding bar 20 of different height is angularly installed in a circumferential direction, and the height such as vertical direction is installed, and it is broken to increase ore
Broken catch probability.Crushing medium on impact grinding bar 20 is divided into four seed types, from top to bottom according to the spatial position of crushing rod
Spherical surface manganese steel pricker medium 26, spherical surface manganese steel pricker and manganese steel plane set-hammer blending agent 29, manganese steel plane set-hammer medium 27 and sawtooth is followed successively by be situated between
Matter 28, crushing medium hit ore or clash with ore, and percussion predominantly point impacts lotus from top to bottom in the axial direction
Load, point-line-surface combination impact load, line face combination impact load and dynamic shearing load, realize different impact mode lower leaf powder
It is broken.To prevent ore from blocking impact grinding bar 20, impact grinding bar 20 and the spacing of 18 inner wall projecting point of impact comminution storehouse are greater than
Equal to 1 times maximum enters brokenly granularity.Nethermost impact grinding bar 20 makes slabbing crescent, inlays manganese steel sawtooth crushing medium
28, crushing rod is with certain small angle inclination when installation, and integral into the lobate arrangement of S-shaped fan, sawtooth lower end is apart from high frequency vibrating
Dynamic sieve pulverizes the particle not crushed or take up particle movement less than or equal to 5mm, by dynamic shearing effect generates further powder
It is broken, to air-flow under generating when S-shaped flabellum shape crushing rod operates, promote miberal powder by high frequency shale shaker 24, pressure fan is placed in pan feeding
Above mouthful, by feeding inlet to crushing bin internal pressure wind, to air pressure under being generated in crushing bin, promotes miberal powder sedimentation, prevent miberal powder
It flies out and pollutes air.
Embodiment 3: based on Examples 1 and 2 but different it is；
S1, magnet green ore enter scalping 2 after jaw crusher 1 is broken, and the bulk on sieve, which enters, falls mine impact grinding storehouse 9,
Fritter and miberal powder under sieve enter throwing impact grinding storehouse 8 after vibrating screen A3 screening；
S2, throwing impact grinding storehouse 8 and the product for falling mine impact grinding storehouse 9, are sieved on vibrating screen B16 and vibrating screen C17 respectively
Point, minus sieve mine enters ore dressing, and oversize enters impact comminution storehouse 18；
S3, impact comminution storehouse 18 use the method for being layered impact comminution, and the crushing medium on impact grinding bar 20 applies ore
Point, line, surface and combinations thereof Impulsive load captures strike ore；
The impact grinding bar 20 of 19 bottom of pulverizer main shaft in S4, impact comminution storehouse 18 is equipped with manganese steel sawtooth crushing medium
The distance between 28 and bottom high frequency shale shaker 24 be 4-6mm, using manganese steel sawtooth crushing medium 28 crush little particle ore or
It drives little particle to fly up, while generating downward air pressure, miberal powder is promoted to pass through high frequency shale shaker 24；
S5, smashed miberal powder are sieved by the high frequency shale shaker 24 of 18 bottom of impact comminution storehouse, and minus sieve mine enters ore dressing；Not
Pulverized particles are again introduced into impact comminution storehouse 18 after vibrating screen B16 screening through 25 discharge of clout outlet；
Realize that the machinery of maximum probability is beaten by ore gravitional force, ore kinetic energy and crushing medium kinetic energy in the method for the present invention
It hits, launch shock and movement head-on collision effect, realize the effective broken of ore, generate fine ore to greatest extent, and then pass through ore dressing
Concentrate is obtained, the present invention makes full use of the advantage of mine landform or infrastructure project depth displacement, to the maximum extent by ore gravitational potential
It can be used for ore reduction, with the high impact grinding of energy efficiency for main crumbling method, except relatively high thick of capacity usage ratio
Outside broken technique, eliminate energy efficiency in traditional handicraft it is lower in broken, fine crushing, primary grinding and secondary grinding link, drop
Low ore reduction energy consumption, improves crushing efficiency, and simplification shortens process flow, reduces equipment investment and broken cost.
Embodiment 4: based on embodiment 1,2 and 3 but different it is；
Impact grinder and pressure fan are prior to horizontal belt conveyer A7, horizontal belt conveyer B14 and horizontal belt conveyer
C15 starting, the ore after ore and throwing impact grinding after falling mine impact grinding enter impact comminution storehouse 18 through feeding inlet, lead to
Cross stop vibratory ore-drawing and belt conveyor control pan feeding speed.In impact comminution storehouse 18 ore at various height on be subjected to broken Jie
The multiple rapid strike of matter, generates broken, and ore, which is broken after medium strike, obtains higher speed, in motion process with other
Ore head-on collision or the manganese steel pricker ball for hitting crushing bin inner wall, generate second-time breakage or rebound, the rock fragments generated at this time exist
It clashes with other ores or crushing medium in motion process, or is forward hit by crushing medium again, generation is crushed again,
It so goes on, a lump ore stone realizes crushing after being subjected to repeat impact effect, and a kind of efficient impact comminution is consequently formed
Mode obtains magnetic iron ore fine ore.The miberal powder generated in impact comminution storehouse 18 is settled down to bottom with gravity by calming the anger to do
On 24 compass screen surface of high frequency shale shaker, the miberal powder under sieving is collected after the sedimentation of spraying machine wet type enters ore dressing, obtains magnetite concentrate.Most
The ore particles without crushing and the miberal powder by settling down close to crushing bin inner wall move to 25 discharge of clout outlet eventually, return
To vibrating screen B16, impact grinder is again introduced into after screening.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of method using impact grinding quick obtaining ore, including jaw crusher (1), scalping (2), throwing impact cutting
Broken storehouse (8) falls mine impact grinding storehouse (9) and impact comminution storehouse (18), it is characterised in that: under jaw crusher (1) outlet
Side is provided with scalping (2), and scalping (2) lower right-hand side is provided with drawing chute A(5), scalping (2) left side lower section setting
Have vibrating screen A(3), the vibrating screen A(3) left side outlet and inclination throwing rubber conveyer (6) on the right side of be flexibly connected, it is described to incline
It is fixedly connected on the left of oblique throwing rubber conveyer (6) with throwing impact grinding storehouse (8) upper end right side, throwing impact grinding storehouse
(8) bottom end is fixedly connected with the upper end drawing chute B(12), the drawing chute B(12) to be provided with horizontal rubber belt defeated for lower end outlet
Send machine B(14), the horizontal rubber belt conveyor B(14) vibrating screen B(16 is provided with below right end), the vibrating screen B(16) under
It brings out and is fixedly connected on the left of mouth and impact comminution storehouse (18) upper center；
The drawing chute A(5) lower exit port is provided with horizontal rubber belt conveyor A(7), the horizontal rubber belt conveyor A(7) it is right
End lower section is provided with and falls mine impact grinding storehouse (9), described to fall mine impact grinding storehouse (9) bottom end and the upper end drawing chute C(13) is solid
Fixed connection, the drawing chute C(13) lower end outlet is provided with horizontal rubber belt conveyor C(15), the horizontal rubber belt conveyor C
(15) it is fixedly connected with above vibrating screen C(17) right end below left end, the vibrating screen C(17) below left end and impact comminution storehouse
(18) it is fixedly connected on the right side of upper end；
Impact comminution storehouse (18) bottom end is provided with main motor (21), main motor (21) upper end and pulverizer main shaft (19)
Lower end is fixedly connected, and impact comminution storehouse (18) the internal axis movable sleeve is connected to pulverizer main shaft (19).
2. a kind of method using impact grinding quick obtaining ore according to claim 1, it is characterised in that: the powder
It is fixedly connected at left and right sides of broken owner's axis (19) with impact grinding bar (20) inner one end, the impact grinding bar (20) is provided with
Four, the impact grinding bar (20) is from top to bottom successively by spherical surface manganese steel pricker medium (26), spherical surface manganese steel pricker and manganese steel plane set-hammer
(28) four kinds of blending agent (29), manganese steel plane set-hammer medium (27) and sawtooth medium media are made.
3. a kind of method using impact grinding quick obtaining ore according to claim 1, it is characterised in that: the throwing
It throws left side wall surface in the middle part of impact grinding storehouse (8) to be provided with shock plate (10), described mine punching (9) inner bottom surface that falls is provided with shock plate
(10), spherical manganese steel pricker is fixedly installed on the shock plate (10), on the shock plate (10) for falling mine impact grinding storehouse (9)
Side is provided with high pressure air port (11).
4. a kind of method using impact grinding quick obtaining ore according to claim 1, it is characterised in that: the powder
Broken owner's axis (19) top is fixedly connected with driven gear (4) axle center, the driven gear (4) and transmission gear (30) company of engagement
It connects, transmission gear (30) axle center is fixedly connected with transmission shaft (31) right end, transmission shaft (31) left end and auxiliary-motor
(22) right end is fixedly connected, and impact grinding storehouse (18) upper left is provided with auxiliary-motor (22).
5. a kind of method using impact grinding quick obtaining ore according to claim 1, it is characterised in that: the punching
It hits the internal left and right sides of crushing bin (18) and is fixedly installed with manganese steel ball nail (23), impact comminution storehouse (18) bottom is provided with height
Frequency vibration sieves (24), is provided with spray device, impact comminution storehouse (18) bottom and high frequency vibrating below the high frequency vibration screen (24)
Clout outlet (25) is provided between sieve (24).
6. a kind of method using impact grinding quick obtaining ore according to claim 1, it is characterised in that: including with
Lower step；
S1, magnet green ore enter scalping (2) after jaw crusher (1) is broken, and the bulk on sieve, which enters, falls mine impact grinding
Storehouse (9), fritter and miberal powder under sieving enter throwing impact grinding storehouse (8) after vibrating screen A(3) screening；
S2, throwing impact grinding storehouse (8) and the product for falling mine impact grinding storehouse (9), respectively in vibrating screen B(16) and vibrating screen C
(17) it is sieved on, minus sieve mine enters ore dressing, and oversize enters impact comminution storehouse (18)；
S3, impact comminution storehouse (18) use the method for being layered impact comminution, and the crushing medium on impact grinding bar (20) is to ore
Apply point, line, surface and combinations thereof Impulsive load, captures strike ore；
It is broken that the impact grinding bar (20) of pulverizer main shaft (19) bottom in S4, impact comminution storehouse (18) is equipped with manganese steel sawtooth
The distance between broken medium (28) and bottom high frequency shale shaker (24) are 4-6mm, are crushed using manganese steel sawtooth crushing medium (28)
Little particle ore drives little particle to fly up, while generating downward air pressure, and miberal powder is promoted to pass through high frequency shale shaker (24)；
S5, smashed miberal powder are sieved by the high frequency shale shaker (24) of impact comminution storehouse (18) bottom, and minus sieve mine enters choosing
Mine；Non- pulverized particles are again introduced into impact comminution storehouse (18) after vibrating screen B(16) screening through clout outlet (25) discharge.
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| Publication number | Publication date |
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| CN108940540B (en) | 2020-04-14 |
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