CN102921519B - Pulverizer with impact pulverizing and extrusion-shearing pulverizing functions - Google Patents
Pulverizer with impact pulverizing and extrusion-shearing pulverizing functions Download PDFInfo
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- CN102921519B CN102921519B CN201210481139.3A CN201210481139A CN102921519B CN 102921519 B CN102921519 B CN 102921519B CN 201210481139 A CN201210481139 A CN 201210481139A CN 102921519 B CN102921519 B CN 102921519B
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Abstract
The invention relates to a pulverizer with impact pulverizing and extrusion-shearing pulverizing functions. The pulverizer adopts rotor dowel pins and stator dowel pins, wherein the three working faces of each rotor dowel pin as well as the three working faces of each stator dowel pin are protected by a wear-resistant element provided with an L-shaped cross section and made of hard alloy. According to a design scheme, the rotor dowel pins mounted on a rotor disc and the stator dowel pins mounted on a stator disc have the function of highly efficiently pulverizing materials through violent impact or high-speed extrusion shearing. A high-efficiency impact flour mill utilizes stator dowel pins to block quantity increase of materials; and the blocking force is enhanced and the impact probability of rotor dowel pins is increased, so as to improve the pulverizing ratio of the equipment by more than one time. A high-speed extrusion shearing pulverizer utilizes rotor dowel pins and stator dowel pins to exert great extrusion-shearing force to materials clamped between the rotor dowel pins and the stator dowel pins to rapidly pulverize high-intensity materials such as ores and ductile materials such as rubber and plastic, and has the outstanding advantages of high pulverizing ratio, high efficiency, high effective electric energy utilization ratio and the like. The effective electric energy utilization ratio of the pulverizer provided by the invention reaches more than 30 percent and is a dozen times that of the conventional ball mill.
Description
Technical field
The present invention relates to a kind of pulverizer that clashes into pulverizing and extrusion shearing crushing function that has, this pulverizer is used for the various fragility of certain particle size or plasticity solid material to be ground into fine particle at numerous areas such as cereal processing, feed processing, metallurgy, Chemical Engineering, plastics, medicine, building, electronics and the energy.
Background technology
Wheat flour milling industry is widely used a kind of size reduction machinery of impacting type flour mill by name both at home and abroad.Percussion grinder is by casing, and rotor part, stator component and motor form.Wherein rotor part comprises wheel hub, is fixed on the disk rotor dish on wheel hub and is arranged at least 3 circles, 16～40 rotor pins of every circle on rotor disk.Stator component comprises cover plate, fixes stator disc on the cover board and is arranged on the circle of at least 3 on stator disc, 20～60 stator pins of every circle.
The working portion of existing rotor pin and stator pin is all that cross section is foursquare four prisms cylinder, and coupling part is one section of screw rod or polished rod.When parts are installed, described screw rod or polished rod pierce into the Kong Houyong fastening nuts of rotor disk or stator disc or fix by welding method.When equipment operation, rotor pin and stator pin can touch material, equipment crushing function is had a direct impact and the surface of quick abrasion is the radial surface in the face of material.They are respectively that rotor pin radially clashes into working face and stator pin radially clashes into working face (below the surface that can directly affect equipment crushing function being all called to the working face of pin).The radially shock working face of existing rotor pin and stator pin all welds hard metal tip protection.
After existing percussion grinder general assembly completes, the tangential surface of stator pin is parallel with the tangential surface of rotor pin, and between rotor pin and stator pin, radial clearance is 1～2mm.The raw meal particle size of percussion grinder (other industry is seldom the used percussion grinder at present) processing using in flour mill is all below 0.4mm, rotor pin and stator pin can not touch any one material particles simultaneously, reach the object of comminuting matter so percussion grinder can only lean on pin on the rotor disk of High Rotation Speed to clash into material particles in space.
Analyze from existing percussion grinder operation principle, all enter machine material under the effect of rotor power and rotor pin impact, all along the circumferential direction move with certain speed.Material particles movement velocity is larger, and the intensity that homodromous rotor pin clashes into it is just lower, and the pulverized probability of material particles is also less.The barrier effect of stator pin is to reduce to zero bumping against its material particles movement velocity of radially clashing on working face, also impact strength and the crushing effect that significantly reduce near its material particles movement velocity of radially clashing into working face, make rotor pin radially clash into working face while clashing into this part material obviously can be improved.
But in prior art, the crest line position, both sides that rotor pin radially clashes into working face can only (being radial clearance between rotor pin and stator pin) stop because stator pin radially clashes into working face the material particles slowing down in extremely of short duration moment bumps against near 1～2mm space at its inner side and crest line position, outside.Except this moment, what the stopping of stator pin did is substantially all idle work (low being especially knocked of only a few high-speed motion and intensity material particles strikes also may be broken on stator pin).And, this moment in stator pin radially clash into material on working face (the machine material of being pressed into is uniformly distributed analysis, this part material ratio many 1.5～4 times of material in 1～2mm radial clearance between rotor pin and stator pin) rotor pin hit less than.Obviously, stator pin stop rear deceleration and can allow material that rotor pin strikes very little (probability that rotor pin strikes the material being stopped by stator pin and slow down is too little) be that prior art one is lacked greatly.In addition, only have the pin of a working face (clashing into the one side of material in prior art) to be used on percussion grinder, can only lean on rotor pin space to clash into the fragility solid material of ground cereal equal strength lower (compression strength of wheat be about 6MPa), cannot powder ore etc. high strength (compression strength of rock is 20MPa～200MPa) fragile material.Efficiency when percussion grinder of the prior art is used for the toughness materials such as crushing rubber and plastics is also lower.Therefore, to cause percussion grinder applicable surface narrow be that prior art one is lacked greatly to the fit structure of existing stator pin and rotor pin.
Gap between rotor pin and stator pin is less in long-term a large amount of facts have proved, the effect that stator pin stops is just larger, impacting type flour mill disintegrating process effect is just better, and the wearing and tearing that while rotor pin and stator pin radially clash into working face are corresponding also faster.Prior art has been welded hard metal tip on pin working face, makes pin at least extend decades of times service life.But test data shows: on the pin that is welded with hard metal tip of flour mill's use percussion grinder of 1 year, the wearing and tearing of edges and corners, hard metal tip both sides reach 0.2mm left and right.Infer accordingly, if this pin during for powder ore class high strength material, the annual wear extent in the edges and corners, both sides of hard metal tip is at least at 1～2mm.Rotor pin and stator pin clash into gap and increase 1～2mm and must make equipment operating efficiency, yield rate and economic benefit etc. obviously reduce, therefore, service life the short pin that is existing percussion grinder another shortcoming.
Analyze in theory, the moment that each rotor pin approaches each stator pin can form once shock strongly.Calculate like this, the strong shock that in an impact disintegrating mill casing, form each second reaches 30～600,000 times.Therefore, compare many advantages such as that percussion grinder has is simple in structure, crushing function is powerful, price is cheap, and installation and maintenance are convenient, and energy consumption is low and widely applicable with the size reduction machinery that roller flour mill is close with use occasion with most of functions.
In powder technology (solid material is ground into an interdiscipline of the characteristic etc. of pulverous technique and equipment and various powders, inter-trade comprehensive extremely strong technology-oriented discipline by research) field by a kind of gyratory crusher being formed by two truncateds cone.Gyratory crusher to determine cone (claiming again outer cone) be a part for frame, mantle (claiming again inner cone) is fixed on main shaft.The center line of main shaft intersects at O point with the center line of fixed cone, it is upper that main shaft is suspended on intersection point O, and main shaft lower end is inserted in (center of lining is on the center line of determining cone) in eccentric bush actively, like this, when main shaft rotation, mantle does partially and revolves and move along the inner surface of fixed cone.Near determining cone place, material is subject to mantle extruding and shear action and is pulverized; Determine cone place departing from, broken material falls to discharging by self gravitation.Gyratory crusher is the machinery that pushes-shear grinding mode work.The advantages such as it is large that it has production capacity, and comminution ratio (enter machine average grain diameter and go out the ratio of machine average grain diameter) is large, and unit power consumption is low, but also have complex structure, investment cost is large, repair and maintenance is difficult and can only be used for the shortcomings such as broken larger particles material.And field of powder engineering application although ball mill has strong adaptability very widely, production capacity is large, comminution ratio is large, simple in structure, operation is reliable and the advantage such as good airproof performance, also large, large, the abrasive body of noise and liner plate consumption is large and the shortcoming such as inefficiency need join expensive reductor, work time of organism heaviness, investment.Wherein effectively utilization rate of electrical is only that 2% left and right is that it is the most outstanding and endanger maximum shortcoming.
Summary of the invention
The object of the present invention is to provide that a kind of scope of application is wide, the pulverizer of low-consumption high-efficiency, can either use as high-efficiency percussion grinder, can serve as again high-speed extrusion shear pulverizer and use.
For achieving the above object, the pulverizer with shock pulverizing and extrusion shearing crushing function of the present invention comprises motor, casing, rotor part and stator component, and motor is fixed on bottom of shell, rotor part comprises wheel hub, be fixed on the rotor disk on wheel hub and be arranged at least 3 circle rotor pins on rotor disk, and rotor part is positioned at casing and is fixed on motor shaft by wheel hub, stator component comprises cover plate, fix stator disc on the cover board and be arranged on the sub-pin of at least 3 delineation on stator disc, stator component is fixed on casing face by its cover plate, described rotor pin is identical with described stator column latch structure, including cross section is foursquare four prism type steel billet, steel billet is provided with coupling part, coupling part is screw rod or polished rod, the adjacent two sides of described four prism type steel billet are respectively as striking face and compressive plane, striking face and compressive plane are referred to as working face, on working face, weld or be bonded with wear member, the cross section of wear member is L-shaped, two non-working surfaces of the two ends that wear member is L shaped and steel billet flush, wear member cross section corner is provided with hypotenuse, make wear member form orthogonal wide, leptoprosopy and connect wide with the inclined-plane of leptoprosopy, the angle of the angle α of inclined-plane and leptoprosopy is 15 °～35 °, wide the radially shock working face as rotor pin and stator pin of described wear member, the leptoprosopy of described wear member is as the tangential extruding working face of rotor pin and stator pin, and the inclined-plane of described wear member is as the inclined cut of rotor pin and stator pin, taking with the imaginary circles cylinder of stator disc and rotor disk coaxial line as A cylinder, the tangential extruding working face of described rotor pin and the A cylinder at rotor pin place are tangent, the tangential extruding working face of described stator pin and the angle β the tangent plane at stator column pin axis place is 10 °～30 ° through the A cylinder of this stator column pin axis.
Described wear member is formed by carbide alloy or the manufacture of special cermacis class ultra-hard abrasive material.
The inclined-plane of described wear member and leptoprosopy are serrated-surface.
By as follows advantage short summary of the present invention:
The present invention only has a pin that clashes into working face to have the pin of three working faces prior art instead, and in the time pin being installed on rotor disk and stator disc, makes three working faces of pin all have the function of direct shock material or extrusion shearing material.The present invention is when processing the material that granularity is less than minimum clearance between rotor pin and stator pin, because stator pin working face stops that acting as of material movement of particles doubly increases and the function of rotor pin shock comminuting matter increases exponentially, so degradation rate of the present invention at least doubles than existing percussion grinder.The present invention when processing the material that granularity is greater than minimum clearance between rotor pin and stator pin, has started the direct extrusion shearing of rotor pin with the high-speed motion material particles between rotor pin and stator pin and has reached the brand-new working method of pulverizing object.This working method can be pulverized various fragility and toughness material, and has efficient, energy-conservation, strong adaptability and the significant advantage such as applied widely.Effective utilization rate of electrical of the present invention is at least more than 30%, and this is at least higher tens times than ball mill.In addition, compare with existing size reduction machineries such as gyratory crushers with ball mill, high-speed extrusion shear pulverizer in addition simple in structure, crushing function is powerful, cost price is cheap, volume and floor space are little, installation and maintenance convenient, simple to operate, good airproof performance, few easy workout part and many advantages such as auxiliary material consumption is few.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of polygon prism pin;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is the structural representation of the fit structure of rotor pin and stator pin;
Fig. 5 is the enlarged drawing that is the A place of maximal clearance state in Fig. 4;
Fig. 6 is that the rotor in Fig. 5 travels forward and makes this place be the structural representation of minimum clearance state.
Detailed description of the invention
Direction explanation:
Part on stator disc 15 is if stator pin 4 is taking the direction that approaches stator disc 15 axis as introversive, otherwise be extroversion; Part on rotor disk 14 is if rotor pin 5 is taking the direction away from rotor disk 14 axis as export-oriented, otherwise be introversion.Shown in Fig. 4 mean camber line arrow, direction is the direction of rotation of rotor disk 14.
Related definition:
In the present invention, will be called A cylinder 21 with the imaginary circles cylinder of stator disc 15 and rotor disk 14 coaxial lines.
Tangential extruding working face 7 crest line crossing with stator pin inclined cut 9 of stator pin 4 is called stator pin benchmark crest line 8.
Stator pin radially clashes into working face 6 and is called stator pin 4 second crest lines 22 with stator pin inclined cut 9 crossing crest lines.
Rotor pin tangentially pushes working face 13 crest line crossing with rotor pin inclined cut 11 and is called rotor pin benchmark crest line 12.
Structure explanation:
As shown in Fig. 1 and Fig. 2 to Fig. 4, the pulverizer with shock pulverizing and extrusion shearing crushing function of the present invention comprises motor 40, casing 34, rotor part and stator component, casing 34 is discoid housings that a periphery has flash, casing 34 is tangentially provided with a rectangle discharging opening 31, the lower surface of casing 34 is connected with motor 40, is also provided with charging aperture 32 on casing 34.
Rotor part comprises wheel hub 39, be fixed on the rotor disk 14 on wheel hub 39 and be arranged at least 3 circle rotor pins 5 on rotor disk 14, and rotor pin 5 is along the circumferential direction uniform centered by the axial line of rotor disk 14.Rotor part is positioned at casing 34 and is fixed on motor shaft by wheel hub 39.
Stator component comprises cover plate 33, be fixed on the stator disc 15 on cover plate 33 and be arranged on the sub-pin 4 of at least 3 delineation on stator disc 15, and stator pin 4 is along the circumferential direction uniform centered by the axial line of stator disc 15.Stator component is fixed on casing 34 faces by its cover plate 33.
As shown in Fig. 2 to Fig. 6 and Fig. 1 (in Fig. 4, dotted line is depicted as rotor disk 14), described rotor pin 5 is identical with described stator pin 4 structures, including cross section is foursquare four prism type steel billet 2, and steel billet 2 is provided with coupling part 1, and coupling part 1 is screw rod or polished rod.
The adjacent two sides of described four prism type steel billet 2 are respectively as striking face and compressive plane, striking face and compressive plane are referred to as working face, on working face, weld or be bonded with wear member 3, the cross section of wear member 3 is L-shaped, and two non-working surfaces of the two ends that wear member is L shaped and steel billet 2 flush.
Wear member 3 cross section corners are provided with hypotenuse, make wear member 3 form orthogonal wide 3A, leptoprosopy 3B and connect the inclined-plane 3C of wide 3A and leptoprosopy 3B, and the angle of the angle α of inclined-plane 3C and leptoprosopy 3B is 15 °～35 °.
Wide 3A of described wear member 3 is as the radially shock working face 6 that radially clashes into working face 10 and stator pin 4 of rotor pin 5, the leptoprosopy 3B of described wear member 3 is as the tangential extruding working face 13 of rotor pin 5 and the tangential extruding working face 7 of stator pin 4, and the inclined-plane 3C of described wear member 3 is as the inclined cut 11 of rotor pin 5 and the inclined cut 9 of stator pin 4.
Described wear member 3 is formed by carbide alloy or the manufacture of special cermacis class ultra-hard abrasive material.The inclined-plane 3C of described wear member 3 and leptoprosopy 3B are serrated-surface.
The tangential extruding working face 13 of described rotor pin 5 is tangent with the A cylinder 21 at this place.The tangential extruding working face of stator the pin 4 and angle β the tangent plane at stator pin 4 axis places is 10 °～30 ° through the A cylinder 21 of stator pin 4 axis.
The present invention in operation process, the radial clearance between rotor pin 5 and stator pin 4 always one from being up to minimum change procedure.When rotor pin 5 starts to approach a certain stator pin 4, the smallest radial spacing of rotor pin benchmark crest line 12 and stator pin the second crest line 22 is called maximal clearance L1(between rotor pin 5 and stator pin 4 as shown in Figure 5).
When rotor pin 5 is about to away from a certain stator pin 4, the smallest radial spacing of the tangential extruding working face 7 end crest lines of rotor pin benchmark crest line 12 and stator pin is called minimum clearance L2(between rotor pin 5 and stator pin 4 as shown in Figure 6).
When the present invention works, the material that enters the space between pulverizer housing 34 sub-disk 15 decided at the higher level but not officially announced and rotor disk 14 moves to outer rim from casing 34 centers under the impact effect of centrifugal force, wind-force and the rotor pin 5 of rotor formation.The present invention is when processing the material that granularity is less than minimum clearance L2, and tiny enters machine material in motion process, after repeatedly being clashed into and pulverize, discharges from discharging opening 31 by least 3 circle rotor pins 5.The present invention is when processing the material of granularity between minimum clearance L2 and maximal clearance L1, the larger material particles that granularity is greater than minimum clearance L2 must have by rotor pin 5 and stator pin 4 and clamp the moment of holding near L1 place, maximal clearance, after this moment, rotor pin 5 moves, rotor pin tangentially pushes working face 13 must apply huge extruding-shearing force to material particles near the tangential extruding working face 7 of stator pin, makes maximum material particles broken rapidly.After large granular materials fragmentation, rotor pin tangentially pushes working face 13 to be continued must be expressed to less material particles and make its moment fragmentation near the tangential extruding working face 7 of stator pin ... until after the material particles that granularity is greater than to minimum clearance L2 all pulverizes, the material of having pulverized is discharged from discharging opening 31.
Use, installation process and specification (referring to accompanying drawing 1 to 6):
The present invention is when processing the material that granularity is less than minimum clearance L2, and equipment mainly clashes into material particles by rotor pin space and reaches comminuting matter object, so claim high-efficiency percussion grinder; When processing the material of granularity between minimum clearance L2 and maximal clearance L1, mainly by the rotor pin extrusion shearing of high-speed motion, the material particles between rotor pin and stator pin reaches comminuting matter object to equipment, so claim high-speed extrusion shear pulverizer.
When stator component of the present invention is installed, the tangential extruding working face 7 of stator and the angle β the tangent plane at axis place is 10 °～30 ° through the A cylinder of this stator column pin axis.This measure make first stator pin 4 radially, tangential and three surfaces in the face of material that tilt have all had the function that stops material movement, second make rotor pin 5 in rotor disk 14 rotation processes with each stator pin 4 near time, there is the descending change procedure in gap between a rotor pin 5 and stator pin 4, pulverize and create necessary condition for extrusion shearing.
When the present invention works, material enters the space between casing 34 sub-disk 15 decided at the higher level but not officially announced and rotor disk 14 from charging aperture 32, motor 40 rotor driven rotations.The centrifugal force that rotor forms and the impact of wind-force and rotor pin 5 force material to move to outer rim from casing 34 centers.Analyze from equipment operation principle, rotor pin 5 of the present invention is connected with rotor disk 14, wheel hub 39 and motor 40 rotors, and rotor pin 5 has by 1/2mv
2(in formula, m is the quality of whole rotor part, it wants up to a hundred kilograms conventionally, rotor speed v is conventionally at 1000r/min～3000r/min) calculate kinetic energy numerical value, this value can be greatly thousands of times than by the combination of pincer attack material particles, therefore, the present invention can easily pulverize percussion grinder and hit the high strength fragile materials such as not broken ore.Having stronger smashing capability is of the present invention one large advantage.
When the present invention uses as high-efficiency percussion grinder, minimum clearance L2 numerical value is got 0.5～1.5mm, and maximal clearance L1 numerical value is got 4～10mm.Tiny enters machine material in motion process, is repeatedly clashed into after pulverizing by least 3 circle rotor pins 5, discharges from discharging opening 31.In this process, 4 three working faces of stator pin can stop material.Stator pin radially clashes into material particles that working face 6 blocks and can outwards skid off along its surface for the rotor pin 5 in these stator pin 4 outsides and clash into.Bounce-back or to skidding off near rotor pin 5 directions, therefore in the present invention, stator pin 4 stops that the effect of material movement is much higher more than the effect of stator pin obstacle material motion in prior art again after having the stator pin 4 tangential extruding working face 7 of serrated-surface and inclined cut 9 and making all movement velocitys of hitting the material on its sawtooth rib die-off to be zero.Because maximal clearance L1 numerical value (4～10mm) is than large 2～10 times of the gap (1～2mm) between existing percussion grinder rotor pin and stator pin, so just than existing percussion grinder many 2～10 times of quantity that enters material in this 4～10mm space.In addition, 3～20 times of analyses of minimum clearance L2 according to maximal clearance L1, enter the material in this 4～10mm space, the overwhelming majority can be hit on the tangential extruding working face 7 of stator pin and the zigzag faceted pebble of inclined cut 9, so not only quantity is many but also the amplitude of movement velocity decay is large for the material being stopped by stator pin 4.Be used in function that rotor pin 5 on high-efficiency percussion grinder radially clashes into working face 10 and inclined cut 11 and be all and directly clash into material particles and by its pulverizing.Rotor pin benchmark crest line 12 is positions (it is also that rotor pin tangentially pushes the initial position of working face 13 simultaneously) of the tangential extruding working face 7 of the rotor pin 5 the most close stator pins in inclined cut, is also the position that crushing function is the strongest (effect of radially clashing into working face two inclines with existing rotor pin 5 is equal to).Each protruding rib of rotor pin inclined cut 11 serrated-surfaces all makes rotor pin 5 increase once to clash into the chance that is stopped the material of movement velocity rapid drawdown by stator pin 4.Cause is far away than rotor pin benchmark crest line 12 with the distance of the tangential extruding working face 7 of stator pin, intensity and the crushing effect of these crest lines shock materials can be lower than rotor pin benchmark crest line 12, but increase at least 5 faceted pebbles that can strongly clash into material, can make undoubtedly the degradation rate that rotor pin 5 clashes into increase substantially.Increase large and rotor pin 5 high strength of 2～10 times, the amplitude of the material movement velocity attenuation that stopped by stator pin 4 according to the inventory that enters gap between rotor pin 5 and stator pin 4 and clash into the probability of materials and increase at least 4 times these 3 comprehensive analyses, at least high 1 times than existing percussion grinder on degradation rate for clashing into the present invention of pulverizing.
When the present invention uses as high-speed extrusion shear pulverizer, the numerical value of minimum clearance L2 and maximal clearance L1 is determined according to the factor such as granularity and intensity of material to be machined.The barrier functionality of 4 three working faces of stator pin is identical with aforementioned percussion grinder.Different: tangential extruding working face 7 and the major function of inclined cut 9 of stator pin is to vise material particles with together with the tangential extruding working face 13 of rotor pin 5, and impose extrusion shearing power and make material particles fragmentation.The tangential extruding working face 7 of stator pin and inclined cut 9 serrated-surfaces can strengthen pincers and hold power and frictional force raising degradation rate.
When the present invention uses as high-speed extrusion shear pulverizer, rotor pin 5 of the present invention radially clashes into working face 10 and inclined cut 11 is all still the working face that directly clashes into material particles.But because being knocked the factor impacts such as the high and particle of material strength is large, under normal circumstances, shock cannot comminuting matter particle, pulverize so clash into the function discussion of no longer making rotor pin 5 and radially clash into working face 10 and inclined cut 11.The major function that rotor pin 5 radially clashes into working face 10 is to allow hit at its surperficial material outwards slip into the first Wedge-shaped space of (here taking the direction of motion of rotor pin 5 as forward direction, otherwise being backward) backward, the tip that is made up of the tangential extruding working face 7 of this pin inclined cut 11 and stator pin.The major function of rotor pin 5 inclined cuts 11 is and most advanced and sophisticated the first Wedge-shaped space backward of composition together with the tangential extruding working face 7 of stator pin, hold and vise from rotor pin 5 fronts and radially clash into from rotor pin 5 material particles that working face 10 slips into, and these material particles are applied to extrusion shearing power, force material particles fragmentation.Starting point is that the rotor pin of rotor pin benchmark crest line 12 tangentially pushes working face 13 and starting point is the tangential extruding working face 7 most advanced and sophisticated second Wedge-shaped spaces forward of composition of the stator pin of stator pin benchmark crest line 8.Rotor pin 5 travels forward, the second Wedge-shaped space reduces, can vise at rotor pin and tangentially push the material particles between the tangential extruding working face 7 of working face 13 and stator pin, and these material particles are applied to extrusion shearing power, force material particles fragmentation.Rotor pin 5 serrated-surface tangential and inclined cut can increase pincers and hold power and increasing shearing force, and and then the degradation rate of raising equipment while working.
When the present invention uses as high-speed extrusion shear pulverizer, the linear velocity that rotating speed moves at the epitrochanterian pin of 1000r/min～3000r/min is up to 20m/s～100m/s.With so high speed shear must be efficiently the light toughness material such as crushing rubber, plastics, therefore, can efficient pulverizing rubber, the toughness material such as plastics is also one of outstanding advantage of the present invention.
The tension of nearly all solid-state material and shearing strength are all low more than compression strength, so, must be remarkable with the low advantage of energy consumption of the present invention that is cut into main grinding mode.In addition energy consumption when, the present invention works only has no-load running energy consumption, comminuting matter energy consumption, crushing material to produce 4 energy consumptions such as heat power consumption and rotor banding animal material sports energy consumption.The present invention is simple in structure, and no-load power consumption is lower than most of size reduction machineries.When the present invention works, rotor pin 5 drives material to move in a circle, and material also moves to rotor outer rim rapidly from rotor center simultaneously, and discharges from the discharging opening 31 of casing 34.Concerning each rotor pin 5, drive for once (existing ball mill and gyratory crusher etc. are all repeated multiple times) of same material particles motion, so the present invention drives material movement energy consumption also much lower than most of size reduction machineries.By above-mentioned combined factors analysis, the present invention is likely that energy consumption is minimum up to now, effectively the highest size reduction machinery of energy utilized rate.
In the present invention, all working face of four prism type steel billet 2 all uses the method for welding or bonding L font wear member 3 to protect.While adopting the rotor rotation of present device, the peak crest line that any one rotor pin tangentially pushes at least 5 strap saw tip surfaces on working face 13 is in same A cylinder 21 substantially, and wear extent when work is basic identical.On the tangential extruding working face 7 of stator pin of the present invention, at least 10 strap saw tip surfaces have the function that stops material movement and apply frictional force to the material of being held by pincers.In the time of equipment operation, the probability of these strip crest line wearing and tearing is identical substantially.Can draw to draw a conclusion: the situation that can not occur only having a certain sawtooth rib Fast Wearing.Therefore the most of sawtooth rib wearing and tearing of tangential extruding working face 7 of, only having rotor pin tangentially to push the whole sawtooth rib wearing and tearing of working face 13 or stator pin just there will be because strengthening the situation that causes crushing function to decline in rotor pin 5 and stator pin 4 gaps.Equate and comminution ratio same analysis contrast by the quantity of pulverizing equal material, the present invention than the service life of existing welding hard metal tip pin to 5 times of the youthful and the elderlys.
Finally, the present invention can transform and form on the basis of various existing shocks pulverizing (abrasive dust) machines.Adopt technical spirit of the present invention can various shocks be pulverized and be transformed, as can be to being that the position relationship that the rotor pin of No. 201210186136.7 patents (water-cooled percussion grinder) and the structure of stator pin and rotor pin and stator pin are arranged on rotor disk and stator disc just forms water cooling high-efficiency percussion grinder or water cooling high speed extrusion shearing pulverizer by the present invention's transformation by application number.Its function is except to one of material to be machined cooling, all identical with the present invention.Therefore the various improvement, carried out on basis of the present invention, utilize within conversion on the various forms that technical spirit of the present invention carries out all drops on protection scope of the present invention.
Claims (3)
1. have the pulverizer that clashes into pulverizing and extrusion shearing crushing function, comprise motor, casing, rotor part and stator component, motor is fixed on bottom of shell;
Rotor part comprises wheel hub, be fixed on the rotor disk on wheel hub and be arranged at least 3 circle rotor pins on rotor disk, and rotor part is positioned at casing and is fixed on motor shaft by wheel hub;
Stator component comprises cover plate, fixing stator disc on the cover board and is arranged on the sub-pin of at least 3 delineation on stator disc, and stator component is fixed on casing face by its cover plate,
It is characterized in that:
Described rotor pin is identical with described stator column latch structure, and including cross section is foursquare four prism type steel billet, and steel billet is provided with coupling part, and coupling part is screw rod or polished rod,
The adjacent two sides of described four prism type steel billet are respectively as striking face and compressive plane, striking face and compressive plane are referred to as working face, on working face, weld or be bonded with wear member, the cross section of wear member is L-shaped, and two non-working surfaces of the two ends that wear member is L shaped and steel billet flush;
Wear member cross section corner is provided with hypotenuse, makes wear member form orthogonal wide, leptoprosopy, and connect wide with the inclined-plane of leptoprosopy, and the angle of the angle α of inclined-plane and leptoprosopy is 15 °～35 °;
Wide the radially shock working face as rotor pin and stator pin of described wear member, the leptoprosopy of described wear member is as the tangential extruding working face of rotor pin and stator pin, and the inclined-plane of described wear member is as the inclined cut of rotor pin and stator pin;
Taking with the imaginary circles cylinder of stator disc and rotor disk coaxial line as A cylinder, the tangential extruding working face of described rotor pin and the A cylinder at rotor pin place are tangent;
The tangential extruding working face of described stator pin and the angle β the tangent plane at stator column pin axis place is 10 °～30 ° through the A cylinder of this stator column pin axis.
2. the pulverizer with shock pulverizing and extrusion shearing crushing function according to claim 1, is characterized in that: described wear member is formed by carbide alloy or the manufacture of special cermacis class ultra-hard abrasive material.
3. the pulverizer with shock pulverizing and extrusion shearing crushing function according to claim 1, is characterized in that: the inclined-plane of described wear member and leptoprosopy are serrated-surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210481139.3A CN102921519B (en) | 2012-11-23 | 2012-11-23 | Pulverizer with impact pulverizing and extrusion-shearing pulverizing functions |
Applications Claiming Priority (1)
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103223365B (en) * | 2013-04-28 | 2014-12-10 | 王洪福 | Crusher with functions of impact crushing and extrusion shearing crushing |
| CN103894260B (en) * | 2014-03-25 | 2016-02-17 | 王洪福 | Efficient simplification wheat flour milling technique and device |
| CN106334597B (en) * | 2015-07-14 | 2023-08-01 | 四川雄健实业有限公司 | Powerful impact powder loosening machine |
| CN105268528B (en) * | 2015-11-18 | 2017-12-05 | 王洪福 | Squeeze at a high speed and cut pulverizer |
| CN109331937A (en) * | 2018-12-12 | 2019-02-15 | 郑州金诚信筛网设备有限公司 | A kind of percussion grinder of mass flow equilibrium |
| CN111298903B (en) * | 2020-03-05 | 2021-11-09 | 郑州鸿力农业科技有限公司 | Multifunctional extruding and cutting machine and application thereof |
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| CN102658230A (en) * | 2012-06-07 | 2012-09-12 | 王洪福 | Water-cooling type impact flour milling machine |
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| RU1802723C (en) * | 1990-12-17 | 1993-03-15 | Александр Васильевич Сапитонов | Crusher |
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