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EP0611600A2 - Dispositif de brayage rotatif pour petits blocs - Google Patents

Dispositif de brayage rotatif pour petits blocs Download PDF

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Publication number
EP0611600A2
EP0611600A2 EP94300976A EP94300976A EP0611600A2 EP 0611600 A2 EP0611600 A2 EP 0611600A2 EP 94300976 A EP94300976 A EP 94300976A EP 94300976 A EP94300976 A EP 94300976A EP 0611600 A2 EP0611600 A2 EP 0611600A2
Authority
EP
European Patent Office
Prior art keywords
drum
wall
stator
cutting
edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP94300976A
Other languages
German (de)
English (en)
Other versions
EP0611600A3 (fr
Inventor
Al Kaczmarek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from PCT/US1993/001555 external-priority patent/WO1994019108A1/fr
Priority claimed from US08/098,455 external-priority patent/US5402948A/en
Application filed by Individual filed Critical Individual
Publication of EP0611600A2 publication Critical patent/EP0611600A2/fr
Publication of EP0611600A3 publication Critical patent/EP0611600A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/144—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with axially elongated knives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B02C18/186—Axially elongated knives
    • 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
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B02C2023/165—Screen denying egress of oversize material

Definitions

  • the background of this invention relates to various shredding, tearing, cutting and grinding devices which process small pieces of bulk materials, such as pieces of rubber tires, into crumb-sized particles.
  • Shredding devices are generally known which process large pieces of bulk materials.
  • U.S. Patent No. 4,394,983 issued to Ulsky for a tire shredder assembly, has a stationary rack in opposition to a rotary cutting assembly. This device is specifically for the purpose of reducing tires to small pieces or chunks with a minimum production of fines and powdery material.
  • the Ehrlick et al. device U.S. Patent No. 3,561,303, employs a series of reciprocating or oscillating knives which co-act with a stationary anvil to shear tire moving across the anvil into diamond-shaped particles.
  • a later patent issued to Ehrlick et al., U.S. Patent No. 4,052,013, relates to a tire shredding device employing a pair of side-by-side parallel and generally cylindrical shredding drums, said drum defined by a series of axially spaced apart circular cutting disks.
  • U.S. Patent No. 4,520,963 issued to Grebe et al., discloses a method for continuously cutting materials such as tires employs a centrifugal technique with fast rotating knives.
  • U.S. Patent No. 4,714,201 issued to Rouse et al. teaches an apparatus and method for used tire processing including a method for monitoring the electrical load on the drum motor to reduce overloads.
  • Reference therein is made to a plastics granulator manufactured by the Cumberland Engineering Company, a division of Leesona Corporation.
  • Leesona is the assignee of numerous U.S. Patents including the following.
  • U.S. Patent No. 3,960,334 relates to a size reduction apparatus having cutting means disposed laterally on a plurality of rotor plates and cooperating bed knives.
  • U.S. Patent Nos. 4,106,708 and 4,206,882 discloses the granulator rotor comprising a longitudinally oriented shaft having at least a plurality of longitudinally spaced plates that have a plurality of corners, said plates extending radially outwardly from said shaft so as to define a plurality of open box-like material receiving pockets.
  • Soviet Union Patent Number SU 1444-158A discloses a worn-out tire grinder for rubber reclamation having a driven cutting rotor plus fixed knives and springloaded grating for production of rubber crumb.
  • the blade design is shown in Fig. 7.
  • Soviet Union Patent Number SU 937-255 discloses a tire shredder for reclamation having a unique slicing knife (7) (powered rotor with exchangeable pins) and a secondary shredding rotor (15) which is not detailed in the drawing and presumably of known design.
  • An advantage of this invention is that it designed to operate at a relatively slow speed, 50 - 350 rpm. By having the work material move along the peripheral surface of the drum, high speed centrifugal mode is not required. Because the cutting takes place at the peripheral edge of the drum, drum rotational speed can be reduced effectively to the range of 50 - 350 rpm. Less waste heat and distortion is created and the cutting efficiencies is improved. This unique design offers minimal tolerances and thus increased efficiency in producing small mesh output.
  • the cutting assembly design of this beneficial invention further provides for a unique elongated holder means. Designed to have its outwardly disposed face form a portion of the peripheral surface of the drum, it adds axial strength to the cylindrically walled rotary grinding drum while securing the teeth therein.
  • interpolative cutting teeth of the stator and drum each possesses limited rotational movement about their respective securing pins. Such movement permits greater flexibility for the cutting surfaces in dealing with multi-grade materials such as rubber tires having steel and material cord.
  • This cutting flexibility reduces the impact force experienced by each cutting tip and allows the teeth to strip coatings off of steel belted cord passing vertically between interpolative cutting teeth and to cut a like material passing horizontally between interpolative cutting teeth and further to flexibly cut, shred, tear and grind the various work materials flowing through any of the preferred embodiments of this invention.
  • Another advantage of this invention is that it employs only one rotating grinding drum.
  • stationary cutting assemblies are presented on the drum housing where minimal axial expansion results. Due to the closer clearances between the drum teeth and the stator teeth, the action is primarily a cutting action although shearing, tearing, grinding, and ripping action occurs. The clearances between interpolative teeth on the drum and stator is small, so that the cutting edges co-act to shear material fed into the space there-between.
  • the oblique angle of the drum cutting teeth relative to the stationary cutting teeth implies a positive rake angle, which reduces shear strain, forces, power consumption, waste heat creation, and increases tool life.
  • One preferred embodiment of the invention provides for positioning the drum teeth such that only one interpolative cutting edge interpolatively engages a stator cutting tooth at any moment during rotation with a further reduction in shear strain, forces and power consumption.
  • the stationary teeth are offset relative to each other, two different edges of a drum cutting tool are used, one for interpolating with a tooth on each of the stator cutting teeth, increased cutting edge life results.
  • the cutting teeth having an equilateral triangular profile which allows the cutting blades to be rotated three times to expose unused cutting edges before replacement is required.
  • the invention relates to a device for comminuting small chunks of recyclable work material, such as garbage, tires having steel belts and other material cords, refuse and loose particulate matter.
  • the work material is comminuted through the use of a generally cylindrically walled rotary grinding drum which has cutting teeth engaged by an elongated holder disposed longitudinally along the peripheral surface of the rotary grinding drum and from which a portion of the cutting teeth are exposed outwardly, extending radially beyond the peripheral surface of the grinding drum.
  • the preferred embodiment depicted in the drawing show a comminuting device comprising a generally cylindrically walled rotary grinding drum 72, said cylindrically walled rotary grinding drum having at least one drum cutting assembly 1 disposed generally longitudinally along the peripheral surface thereof.
  • each said drum cutting assembly 1 has a drum elongated holder means 3 and a plurality of drum cutting teeth 9 engaged longitudinally to said drum elongated holder means 3.
  • Each drum elongated holder means 3 disposed along the peripheral surface of the cylindrically walled rotary grinding drum 72 is arranged and adapted to have its outwardly disposed face form a portion of the peripheral surface of the cylindrically walled rotary grinding drum 72.
  • Each of the drum cutting teeth 9 engaged to the drum elongated holder means 3 disposed along the peripheral surface of the cylindrically walled rotary grinding drum 72 is arranged and adapted to expose a drum cutting tip portion 9a (see FIG.
  • At least one of the drum elongated holder means 3 disposed along the peripheral surface of the cylindrically walled rotary grinding drum 72 is helically shaped.
  • FIGS. 1 and 2 a general arrangement of a preferred embodiment of said device is shown. Of note is the positioning of a screen access door 30 and a discharge duct 10 connected thereto; and positioned on top is a material feed hopper 8 tandemly disposed above and mounted on the means for housing the cylindrically walled rotary grinding drum, having a work material feeder 52 disposed therein, with an outwardly disposed drive mechanism having a cover 6.
  • the hopper 8 has an elongated outlet 56 which is positioned parallel to the axis of the cylindrically walled grinding drum 52 contained in the stator having an upper casing 24 and lower casing 21, and further comprising a screen access door 30 secured by a housing bolt assembly 26 having accessible housing bolts 28.
  • the comminuting device is supported by a rigid base 2 securing the housing at sufficient elevations as the discharge duct 10 can be positioned underneath the lower stator housing casing 21 and connected to discharge piping 12 which feeds a blower 14 having a blower motor 16 and supporting base 18.
  • a preferred embodiment has a rigid base 2 arranged and adapted to support said comminuting device at sufficient elevation above floor grade to permit the screen door 30, with the discharge duct 10 mounted thereto, to be moved from a raised position to a lowered position 30'.
  • the discharge duct 10 has at one end thereof an adjustable air inlet gate 60 to regulate the flow of process air, and a means to disconnect 13 said discharge duct from the blower.
  • the work material 50 of varying sizes generally not having an outer dimension exceeding 4 inches is positioned in the hopper 8 and flow thereof is regulated by a rotary feeder 52 having a substantially cylindrical drum with a plurality of paddles 54 disposed along the surface thereof and having an axis parallel to and positioned above said bottom opening 56 of said material feed hopper 8 parallel to the axis of the cylindrically walled grinding drum 72.
  • the material feed hopper 8 has an elongated opening 9 at the top for receiving material to be comminuted, upright end walls 7 downwardly tapering, and a bottom opening 56 that is directly overlying, parallel to and in communication with the elongated opening 19 positioned in the means for housing the cylindrically walled rotary grinding drum 72.
  • the elongated rotary feeder 52 is disposed in a bottom portion of the material feed hopper 8 and it has an externally disposed variable speed motor, the feeder motor 40, connected to it on its own support base 42 and interconnected by belt drive means 44 connected to an external drive wheel 46, as shown in FIG. 2.
  • a variable speed motor, the grinder motor 35 generally rated from 40 to 100 horsepower for a one ton per hour capacity device, and having a shaft mounted motor drive wheel 33 provides the drive means for rotating the cylindrically walled rotary grinding drum 72 further comprising a suitably sized drive wheel 38, having a centrally located axial bore 75 suitably sized to fit the drive end of the shaft 74 with an offset keyway 142 extending axially along a surface of said bore 75, positioned on the drive end of the shaft 74, and a suitably sized and adapted key 73 positioned therein keying said drive wheel thereto.
  • the respective drive wheels, 38 and 33 are suitably sized and adapted so that the cylindrically walled rotary grinding drum 72 can rotate between 50 and 350 rpm, depending on the work material size and capacity. High efficiency is obtained operating at 120 rpm.
  • the motor 35 rotating the grinding drum 72 is contained in a housing 32 and uses a belt drive 36 connected from the drive motor shaft wheel 33 to the drive wheel 38 for the cylindrically walled grinding drum 72.
  • the cylindrically walled grinding drum 72 generally rotates clockwise and has in its peripheral surface a plurality of drum cutting assemblies 1 comprising drum elongated holder means 3 having drum cutting teeth 9 extending beyond the peripheral surface of said drum 72.
  • a preferred embodiment of the comminuting device comprises a manual override to reverse the normal rotation of the cylindrically walled rotary grinding drum 72.
  • the controller when activated supplies power to the grinder, that is, the variable speed motor 35 that provides the drive means for rotating the cylindrically walled rotary grinding drum 72. Once the rotor reaches full speed, the circuit is energized and the feeder motor 40 is likewise activated.
  • both the feeder motor 40 and the grinder motor 35 may be shut down.
  • a load monitor for the motor 35 driving the cylindrically walled rotary grinding drum 72 is provided which adjusts the power supplied to the motor 40 for the rotary feeder 52 to coordinate work material throughput and reduce jamming.
  • Rotary airlock control substantially adjust the inlet air dampers 22 and the lower air inlet 60 having an air inlet gate 61 to accommodate the varying coarseness and comminuting rate of the work material. Regardless of whether the air inlets are automatically regulated, it would generally be required for fine work material that the inlet air dampers 22 be opened wider and that the an air inlet gate 61 of the lower air inlet 60 be positioned lower, and that for coarser work material that the inlet air dampers 22 be adjusted to be closed more and that the an air inlet gate 61 of the lower air inlet 60 have its position raised.
  • the means for housing the cylindrically walled rotary grinding drum 72 comprising a stator in which the cylindrically walled rotary grinding drum can freely rotate.
  • the stator comprising an inner wall section, shown here as the screen 150, has a generally cylindrical surface, arranged and adapted concentric with and in opposition to the cylindrically walled rotary grinding drum 72, with a radius of curvature sufficiently greater than the radius of said cylindrically walled rotary grinding drum, such that, upon rotation of the cylindrically walled rotary grinding drum 72, the drum cutting tip portions 9 and the inner wall section 150 may coact to comminute work material 50 passing therebetween.
  • One of the objects of this invention is to comminute work materials to fines. Screen sizes ranging from 8-40 mesh are generally employed.
  • the stator further comprises a means for obstructing the flow of work material and process air 70, as shown in FIG. 2, said means are protruding from an inner wall section (54 and 57; and 25 and 26, respectively) towards said cylindrically walled rotary grinding drum 72.
  • the means for obstructing the flow of work material and process air comprises a means for cutting.
  • the means for cutting comprises at least one stator cutting assembly (66, 68 and 70) disposed generally along the peripheral surface of an inner wall section (54 and 57; and 25 and 26, respectively) of the stator.
  • the stator cutting assembly 100 has a stationary elongated holder means (66 and 68) and a plurality of stator cutting teeth 70 engaged longitudinally to said stationary elongated holder means.
  • Each stationary elongated holder means (66 and 68) disposed along the inner wall section is arranged and adapted to have a face (66a and 68a, respectively) thereof form a portion of the peripheral surface of the inner wall section. (See Fig. 8.)
  • stator cutting teeth 70 engaged to the stationary elongated holder means (66 and 68) disposed along the inner wall section is arranged and adapted to expose a stator cutting tip portion 70a thereof from said face (66a and 68a) of the stationary elongated holder means (66 and 68) such that each said stator cutting tip portion 70a protrudes from the inner wall section towards said cylindrically walled rotary grinding drum 72 and interpolates, that is, the stator cutting tip portions 70a and the drum cutting tip portions 9a may progressively pass across each other in a generally evenly spaced relationship as the cylindrically walled rotary grinding drum 72 is rotated.
  • a preferred embodiment of the present invention comprises each stationary elongated holder means disposed along the inner wall section being parallel to the axis of the cylindrically walled rotary grinding drum. Moreover, in the preferred embodiment of the invention shown in the drawing, the axis of the cylindrically walled rotary grinding drum 72 is generally horizontal.
  • FIG. 2 Two stator cutting assemblies are shown as FIG. 2 having an upper section of a stationary elongated split holder casing 66 and a lower section thereof 68 engaging a stator cutter tooth 70.
  • each stator cutting assembly 100 further comprises the stationary elongated holder means having a stationary elongated split holder casing with an upper and a lower section (66 and 68, respectively) mateable along a generally horizontal plane.
  • Each of these sections has a generally a parallel congruent bottom wall (66b and 68b, respectively) and a plurality of concentric vertical boreholes 67a suitably sized and adapted to accept a securing member, such as a threaded section mating bolt 67, with said upper section 66 having a bore 67a suitably sized to allow a head of bolt 67 to be recessed therein and with the lower section of said bore 67a having an internally threaded bore suitably sized and adapted to engage the threads of the bolt 67.
  • the respective upper and lower sections of the stationary elongated split holder casing (66 and 68) can be mated together to form the stationary elongated holder means.
  • the upper section 66 thereof in the preferred embodiment of the invention as shown in FIG.
  • a prism having a bottom wall 66b, two parallel congruent end walls 66c, each having a bottom edge, two side edges, a top edge and a side diagonal edge, a rear wall 66d, a top wall 66e and a top diagonal wall 66a, said top diagonal wall 66a having an upper rear edge, two side edges and a lower front edge, and said bottom wall 66b and said top wall 66e each generally lying in a horizontal plane, said rear and end walls (66d and 66c, respectively) each extending upwardly from and having their bottom edges connected to the rear and side edges, respectively, of the bottom wall 66b, said rear wall 66d having its side edges connected to the rear side edges, respectively, of the end walls 66c, said top wall 66e having its side edges connected to the top edges of the end walls 66c, respectively, its rear edge to the rear wall 66d, and its front edge to the upper rear edge of the top diagonal wall 66a, said top diagonal wall 66a further having
  • the lower section 68 of the stationary elongated split holder casing comprising a square prism having an longitudinal recess 73a positioned along the upper front corner thereof suitably sized and adapted for positioning the stator cutting teeth 70 therein.
  • the lower section 68 further comprises a bottom wall 68b, two parallel congruent end walls 68c, each having a bottom edge, a rear side edge, a front side edge, a top edge, a recess side edge and a recess bottom edge, a rear wall 68d, a front wall 68a, a top wall 68e, a recess bottom wall 73b and a recess rear wall 73.
  • the bottom wall 68b, recess bottom wall 73b and top wall 68e each generally lying in a horizontal plane, said rear wall 73, front wall 68a and end walls 68c each extending upwardly from and having their bottom edges connected to the rear, front and side edges, respectively, of the bottom wall 68b, said rear wall 68d having its side edges connected to the rear side edges, respectively, of the end walls 68c, said top wall 68e having its side edges connected to the top edges of the end walls 68c, respectively, its rear edge to the upper edge of the rear wall 68d, and its front edge to the upper edge of the recess rear wall 73, said recess rear wall 73 having its lower edge connected to the rear edge of the recess bottom wall 73b and its side edges, respectively, to the recess side edges of the end walls 68c, said recess bottom wall 73b having its front edge connected to the upper edge of the front wall 68a, its side edges, respectively, to the recess side edges of the end
  • the lower section 68 thereof further comprises a plurality of horizontal boreholes 69a suitably sized and adapted to accept a stator securing member, such as the end of a threaded stator bolt, to secure the stationary elongated holder means to the inner wall section of the stator in conjunction with the plurality of horizontal boreholes 69b positioned therein. (See FIG. 6.)
  • a stator securing member such as the end of a threaded stator bolt
  • the lower section 68 further comprises a plurality of vertical bores 71a in the recess bottom wall 73b, each suitably sized and adapted to accept a tooth retraining pin 71.
  • the tooth retraining pin 71 is arranged and adapted to position a stator cutting tooth 70 having a central bore (see FIGS. 13-18) suitably sized and adapted to accept said tooth retraining pin 71 to expose its stator cutting tip portion 70a from the outwardly disposed face of said stationary drum elongated holder means.
  • An alternative embodiment is contemplated having the bores for the retaining pins positioned in the respective upper sections of the elongated holder means.
  • the plurality of stator cutting teeth 70 each comprise a prism having at least three side walls, and two parallel congruent top and bottom walls.
  • each of the side walls extends upwardly from and has its bottom edge connected to a side edge, respectively, of the bottom wall, each side wall having two side edges, each connected to a different side wall, said top wall having its side edges connected to the top edges of the side walls.
  • Each stator cutting tooth 70 has an upwardly extending dimension of a side wall not exceeding the upwardly extending dimension of the recess rear wall 73 of the stationary elongated split holder casing.
  • each of the drum cutting assembly 1 comprises drum elongated holder means having a drum elongated split holder casing with an upper and a lower section (5 and 7, respectively) mateable along a generally horizontal plane.
  • Each such section has a generally a parallel congruent bottom wall (5b and 7b, respectively) and a plurality of transverse concentric boreholes 116a suitably sized and adapted to accept a securing member, such as a threaded section mating bolt 116, with said upper section 5 having a bore suitably sized to allow a bolt head to be recessed therein and with said lower section 7 having an internally threaded bore suitably sized and adapted to engage the threads thereof.
  • the respective upper and lower sections (5 and 7, respectively) of the drum elongated split holder casing can be mated together to form the drum elongated holder means.
  • the upper section 5 thereof has a bottom wall 5b and a top wall 5e parallel thereto, two parallel end walls 5c, a rear wall 5d, and a front wall 11a.
  • the bottom wall 5b and said top wall 5e each generally lying in a generally horizontal plane, said rear wall 5d extending transversely upward and said end walls 5c each extending upwardly from and having their bottom edges connected to the rear and side edges, respectively, of the bottom wall 5b, said rear wall 5d having its side edges connected to the rear side edges, respectively, of the end walls 5c, said top wall 5e having its side edges connected to the top edges of the end walls 5c, respectively, its rear edge to the rear wall 5d, and its front edge to the front wall 11a, said front wall 11a further having its lower edge connected to the front edge of the bottom wall 5b and its side edges, respectively, to the side edges of the end walls 5c.
  • the lower section 7 thereof has a longitudinal recess 13a positioned along the upper front corner thereof suitably sized and adapted for positioning the drum cutting teeth 9 therein, and further comprising a bottom wall 7b, two parallel end walls 7c, each having a bottom edge, a rear side edge, a front side edge, a top edge, a recess side edge and a recess bottom edge, a rear wall 7d, a front wall 11, a top wall 7e, a recess bottom wall 13b and a recess rear wall 13.
  • the bottom wall 7b, recess bottom wall 13b and top wall 7e each lie generally horizontal plane, said rear, front and end walls (7d, 11 and 7c, respectively) each extending upwardly from and having their bottom edges connected to the rear, front and side edges, respectively, of the bottom wall 7b, said rear wall 7d having its side edges connected to the rear side edges, respectively, of the end walls 7c, said top wall 7e having its side edges connected to the top edges of the end walls 7c, respectively, its rear edge to the upper edge of the rear wall 7d, and its front edge to the upper edge of the recess rear wall 13.
  • the recess rear wall 13 has its lower edge connected to the rear edge of the recess bottom wall 13b and its side edges, respectively, to the recess side edges of the end walls 7c.
  • the recess bottom wall 13b has its front edge connected to the upper edge of the front wall 11, its side edges, respectively, to the recess side edges of the end walls 7c, and the front wall 11 has its side edges connected, respectively, to front side edges of the end walls 7c.
  • the lower section 7 thereof further comprising a plurality of boreholes 115a transverse to the front wall 11 thereof, suitably sized and adapted to accept a drum securing member, such as a threaded drum bolt 115, each such borehole 115a having a bore suitably sized to allow a bolt head to be recessed therein as the threaded section of said bolt protrudes from the back wall thereof and engages the recess 124 having a radially internally threaded bore 115b to secure a threaded bolt 115 on the annular surface of a supporting disks (73a -73n, respectively) of the cylindrically walled rotary grinding drum 72.
  • a drum securing member such as a threaded drum bolt 115
  • Said lower section 7 thereof further comprising a plurality of bores 15a in the recess bottom wall 13b, each suitably sized and adapted to accept a tooth retraining pin 71, and further arranged and adapted to position a drum cutting tooth 9 having a central bore 15 suitably sized and adapted to accept said tooth retraining pin 71 to expose its drum cutting tip portion 9a from the outwardly disposed face of said drum elongated holder means (5 and 7), and having a plurality of threaded section mating bolts 116, a plurality of tooth restraining pins 71, and a plurality of threaded drum bolts 115, to secure the drum cutting assembly 1 to the drum 72.
  • the drum elongated holder means 3 and the stator elongated holder means are best made of materials resistance to distortion and wear. Prehardened 43/40 steel having a Rockwell Hardness in the range of 38-42 is preferred.
  • a prism having at least three side walls 9b, and two parallel congruent top and bottom walls (9e and 9b, respectively).
  • said bottom wall 9b and said top wall 9e are each oriented to lie in a horizontal plane, each said side wall 9c extending upwardly from and having its bottom edge connected to a side edge, respectively, of the bottom wall 9b; and each side wall 9c having two side edges, each connected to a different side wall 9c, and said top wall 9e having its side edges connected to the top edges of the side walls 9c.
  • At least one of the drum cutting assembly comprises an upper section 5 thereof having a bottom wall 5b and a top wall 5e parallel thereto, two parallel end walls 5c, a rear wall 5d, and a helical ribbon shaped front wall 11.
  • the bottom wall 5b and said top wall 5e each generally lying in a plane oblique to axis 72a of the cylindrically walled rotary grinding drum 72, said rear wall 5d extending transversely upward and said end walls 5c each extending upwardly from and having their bottom edges connected to the rear and side edges, respectively, of the bottom wall 5b, said rear wall 5d having its side edges connected to the rear side edges, respectively, of the end walls 5c, said top wall 5e having its side edges connected to the top edges of the end walls 5c, respectively, its rear edge to the rear wall 5d, and its front edge to the front wall 11a, said front wall 11a further having its lower edge connected to the front edge of the bottom wall 5b and its side edges, respectively, to the side edges of the end walls 5
  • the lower section 7 thereof having a longitudinal recess 13a positioned along the upper front corner thereof suitably sized and adapted for positioning the drum cutting teeth 9 therein, and further comprising a bottom wall 7b, two parallel end walls 7c, each having a bottom edge, a rear side edge, a front side edge, a top edge, a recess side edge and a recess bottom edge, a rear wall 7d, a helical ribbon shaped front wall 11, a top wall 7e, a recess bottom wall 13b and a recess rear wall 13.
  • the bottom wall 7b, recess bottom wall 13b and top wall 7e each generally lying in a plane oblique to axis 72a of the cylindrically walled rotary grinding drum 72, said rear, front and end walls (7d, 11 and 7c, respectively) each extending upwardly from and having their bottom edges connected to the rear, front and side edges, respectively, of the bottom wall 7b, said rear wall 7d having its side edges connected to the rear side edges, respectively, of the end walls 7c, said top wall 7e having its side edges connected to the top edges of the end walls 7c, respectively, its rear edge to the upper edge of the rear wall 7d, and its front edge to the upper edge of the recess rear wall 12.
  • the recess rear wall 13 having its lower edge connected to the rear edge of the recess bottom wall 13b and its side edges, respectively, to the recess side edges of the end walls 7c.
  • the recess bottom wall 13b having its front edge connected to the upper edge of the front wall 11, its side edges, respectively, to the recess side edges of the end walls 7c, and said front wall 11 having its side edges connected, respectively, to front side edges of the end walls 7c.
  • Each drum cutting tooth 9 having an upwardly extending dimension of a side wall 9c not exceeding the upwardly extending dimension of the recess rear wall 13 of the drum elongated split holder casing 3.
  • each of the cutting teeth (9 and 70, respectively) of the drum cutting assembly 1 and each stator cutting assembly 100 are identically shaped.
  • Each drum cutting tip portion 9a and each stator cutting tip portion 70a has a tip angle ⁇ , which angle does not exceed 90°, defined by the angle between the side walls of said cutting tip portion exposed from the outwardly disposed face of the drum and stator elongated holder means, respectively.
  • Each such cutting tooth (9 and 70, respectively) has a distance between the center of its central bore and its cutting tip equal to ⁇ .
  • Each drum cutting tooth 9 and each stator cutting tooth 70 has an upwardly extending dimension of its side wall equal to ⁇ , which is sufficiently less than the upwardly extending dimension of the recess rear wall (13 and 73), respectively, of the drum elongated split holder casing (5 and 7) and the stator elongated split holder casing (66 and 68), to allow rotating movement of each tooth (9 and 70, respectively) about its tooth restraining pin (71) upon impact with work material passing therebetween.
  • the recess rear wall (13 and 73) of the respective elongated split holder casings is arranged and adapted to restrict the rotating movement of each tooth about its tooth restraining pin (71 and 15a, respectively).
  • An angle not exceeding (45°- 1 ⁇ 2 ⁇ ) in either direction from a plane passing through such restraining pin 71 and transverse to its elongated split holder casing (66 and 68, and 5 and 7, respectively) is preferred. Since the stator cutting tip portions 70a are arranged in interpolative relation with the drum cutting tip portions 9a as the cylindrically walled rotary grinding drum 72 rotates about its axis a minimum clearance ⁇ between the respective cutting tip positions must be maintained.
  • each cutting tooth (9 and 70, respectively) each essentially comprise an equilateral triangle
  • the recess rear wall 13 of the longitudinal recess 13a of the lower section 7 of the drum elongated holder means (5 and 7) has a generally congruent surface to the helical ribbon shaped front wall 11 thereof
  • the recess rear wall 73 of the longitudinal recess 73a of the lower section 68 of the stator elongated holder means (66 and 68) has a generally flat surface parallel the front wall 71 thereof
  • each of the drum cutting teeth 9 in each drum cutting assembly 1 has an angle ⁇ , between the plane passing through the teeth 9 of said drum cutting assembly 1 and the horizontal plane, exposing a drum cutting tip portion 9a having a top and a bottom wall (9e and 9b, respectively) at an oblique angle ⁇ to the horizontal plane, each of said cutting tip portions 9a further comprises a portion of two side walls 9c.
  • a leading edge is comprised of an intersection of each side wall 9c of said cutting tip portion 9a with an edge of the top wall 9e or the bottom wall 9b.
  • An interpolative cutting edge comprises the leading edge on a drum cutting tip portion 9a first entering the plane of the stator cutting teeth 70 in one stationary elongated holder means relative to the other leading edges on said cutting tip portion 9a.
  • Each such interpolative cutting edge of a drum cutting tip portion 9a is arranged and adapted to interpolatively engage a stator cutting tooth 70 in each of the stationary elongated holder means (66 and 68).
  • Such cutting teeth are fashioned from commercially available materials designed for heavy impact applications for metal forming operations, such as cemented carbide having an industrial designation ISO/G-35, grade WA-96, generally comprised of WC(84) and CO(16); and having a RA Hardness in the range of 85.0 - 90.0, density: 13.9 gms/cc, T.R.S.: 410,000 psi, and 7 - 10 percent abrasion resistance. Standard techniques for surface hardening will further prolong tooth life.
  • FIG. 3 shows an exploded view of the cylindrically walled grinding drum 72 comprising a shaft 74 rotatably and axially journaled in said stator 41, said shaft 74 having a drive end 74b and a free end 74a.
  • a shaft having an overall length of 42.94 inches has an undiminished diameter of 5.69 inches.
  • each such end extending through an aperture (154a and 155a, respectively) in the stator drive end wall (155b and 155c) and stator free end wall (154b and 154c (not shown)), respectively.
  • each such end further having a central axially internally threaded bore 74c arranged and adapted to accept a securing member, such as a screw 101, and each such end having a series of step portions of radially increasing diameter commencing at each of its terminal ends.
  • the free end 74a of the shaft 74 has a series of step portions of radially increasing diameter commencing with an externally threaded step portion 74d proximate to the end thereof sized and adapted to accept a threaded bearing locking member 135, proximate thereto the shaft having a journal bearing step portion 74e suitably sized and adapted to accept a bearing 132, and the free end of the shaft has a further step portion 74f proximate thereto suitably sized radially to provide an axial inner shoulder for the bearing 132 and of suitable length axially to permit sufficient clearance between the bearing and an external surface of the stator free end wall (154b and 154c) through which said free end of the shaft extends.
  • the drive end 74b of the shaft 74 having a series of step portions of radially increasing diameter commencing with a first step portion 141 proximate to the end thereof sized and adapted to affix a drive wheel 38 thereto and having an offset keyway 142 extending axially along the peripheral surface of said first step portion 141 to secure said drive wheel 38 to the shaft 74, an externally threaded step portion 143 proximate thereto sized and adapted to accept a threaded bearing locking member 103, proximate thereto the shaft 74 having a journal bearing step portion 145 suitably sized and adapted to accept a bearing 109, and said drive end 74b of shaft 74 has a further step portion 147 proximate thereto suitably sized radially to provide an axial inner shoulder for said bearing 109 and of suitable length axially to permit sufficient clearance between the bearing 109 and an external surface of the stator drive end wall (155b and 155c) through which said drive end of the shaft extends.
  • each peripheral cover plate 118 of generally uniform thickness suitably sized and adapted to form a portion of the peripheral surface of the cylindrically walled rotary grinding drum 72 not provided by each drum elongated holder means 3 disposed along the peripheral surface thereof, each such peripheral cover plate 118 has a plurality of boreholes 117a arranged and adapted to receive a securing member, such as a flat head screw 117, to secure said peripheral cover plate 118 to the cylindrically walled rotary grinding drum 72.
  • a securing member such as a flat head screw 117
  • the cylindrically walled rotary grinding drum 72 further comprises a plurality of supporting disks (73a - 73n) rigidly disposed at axially spaced intervals along the shaft 74 between the respective step portions (74f and 147, respectively) that provide an axial inner shoulder for a bearing, each such supporting disk lying in a plane transverse to the axis 72a of the shaft 72 and being coaxially positioned therewith.
  • Each of the supporting disks (73a - 73n) has a generally annular peripheral surface and at least one recess 124 on said annular surface having a radially internally threaded bore 115b to secure a threaded bolt 115 adapted to engage a longitudinal section of the drum elongated holder means 3 of the drum cutting assembly 1.
  • the supporting disk 73a proximate to the free end 74a of the shaft 74 and the supporting disk 73n proximate to the drive end 74b of the shaft, comprise the end supporting disks (73a and 73n), each such end supporting disk has a series of step portions of radially varying diameter, each such end supporting disk has an endwardly directed surface 144a connected to an annular step portion 144 having a diameter less than the diameter of the cylindrically walled rotary grinding drum 72 and an axial length sufficient to allow process air to pass between said end supporting disk (73a and 73n) and the respective stator end wall(154b and 155b, respectively).
  • a proximate step portion having a peripheral surface (122a and 122n, respectively) of each such end supporting disk (73a and 73n) has a diameter essentially that of the cylindrically walled rotary grinding drum 72, and moving away from the respective shaft ends, a further proximate step portion (126a and 126n, respectively) is provided, having a diameter essentially that of the cylindrically walled rotary grinding drum 72 reduced by the thickness of the peripheral cover plate 118 and having a plurality of boreholes 117b radially arranged in the peripheral surface of said step portion (126a and 126n) to receive a securing member, such as a flat head screw 117, to secure said peripheral cover plate to the outer supporting disks (73a and 73n).
  • a securing member such as a flat head screw 117
  • Each supporting disk 73b between the end supporting disks (73a and 73n) has a diameter essentially that of the cylindrically walled rotary grinding drum 72 reduced by the thickness of the peripheral cover plate 118 and each such disk has a plurality of boreholes 117c radially arranged in its generally annular peripheral surface 120 to receive a securing member, such as a flat head screw 117, to secure said peripheral cover plate to the outer supporting disks 73b.
  • FIGS. 6 and 7 show a preferred embodiment of the present invention with the cylindrically walled rotary grinding drum 72 removed and with the upper and lower sections of the split stator casing (24 and 21, respectively).
  • FIGS. 7 is a top plan view of a preferred embodiment of the present invention of a stator cutting assembly 100.
  • the means for housing the cylindrically walled rotary grinding drum comprises a stator drive end wall 155b and a stator free end wall 154b, comprising the stator end walls, each having an aperture (155a and 154a, respectively) and an annular wall dirt ring recess (114a and 127a, respectively) therein arranged coaxially with the cylindrically walled rotary grinding drum 72.
  • the stator having a split stator casing with an upper and a lower section (24 and 21, respectively) mateable along a generally horizontal plane passing through center of the aperture of each stator end walls, and means for attaching the upper section of the stator casing to the lower section thereof.
  • the means for mounting the cylindrically walled rotary grinding drum such that the cylindrically walled rotary grinding drum 72 can rotate in said stator 41 comprises an annular collar (154 and 155, respectively) secured externally to each of the respective stator end walls (154b and 155b, respectively) and arranged coaxially with the aperture (154a and 155a, respectively) therein, and said annular collar having a plurality of internally threated boreholes (154d and 155d (not shown), respectively).
  • Each such annular collar having two substantially identical mating half collars with parallel flanges having at least one mating borehole (155e and 154e (not shown), respectively) arranged therein to receive a securing member such as a mating nut and bolt 156, each such half collar positioned on a respective upper and lower stator end wall section, and each such half collar arranged and adapted to be joined together as the upper and lower sections of the stator casing are mated together with the means for attaching the upper section of the stator casing to the lower section thereof.
  • a securing member such as a mating nut and bolt 156
  • the means for mounting the cylindrically walled rotary grinding drum such that the cylindrically walled rotary grinding drum can rotate in said stator further comprises, for each end of the shaft: at least one dirt ring (114 and 127, respectively) arranged and adapted to be mounted in the annular wall dirt ring recess (114a and 127a, respectively) of each one of the stator end walls (154b and 155b,respectively) as shown in FIG. 4.
  • a self-aligning double row roller bearing having a raceway of outer ring spherical rollers guided by a cage and two integral ribs on the inner ring should be available commercially to meet the demanding needs of this invention. Size of the machine, its components, speed of operation, work material, and materials of construction will determine normal operating parameters. For an embodiment allowing a minimum clearance of .003" between interpolated teeth and as otherwise described herein, axial expansion of 2-3 hundredth of an inch can be anticipated.
  • the threaded bearing locking member may have at least one transverse set screw (104 and 136, respectively).
  • the means for mounting the cylindrically walled rotary grinding drum such that the cylindrically walled rotary grinding drum can rotate in said stator further comprises a shaft end cap (102 and 137, respectively) and a threaded screw (101 and 141, respectively) positioned in the central axially internally threaded bore 74c in the end of each end of the shaft 74.
  • the threaded screw secures said shaft end cap which secures said the threaded lock washer which secures the bearing axially and the plurality of bearing cover securing bolts secure the bearing cover to the annular collar to secure the bearing radially which in combination secures the shaft radially and axially.
  • the cylindrically walled rotary grinding drum 72 comprises seven drum cutting assembly 1 disposed along the peripheral surface thereof. At least six of these have an angle ⁇ , between the plane passing through the teeth of said drum cutting assemblies and the horizontal plane.
  • only one interpolative cutting edge interpolatively engages a stator cutting tooth at any moment during rotation.
  • FIG. 6 shows an embodiment of the inner wall section of stator 41 further comprises at least one elongated foraminated screen 150 forming a semi-circular ring sector generally positioned below and concentric with said cylindrically walled rotary grinding drum 72.
  • Each of the elongated foraminated screens 150 have generally horizontally disposed flanges 151 extending from the longitudinal ends thereof.
  • Each said horizontally disposed flange 151 is arranged and adapted to be secured to the means for housing the cylindrically walled rotary grinding drum casing, i.e., the stator 41.
  • the means for housing the cylindrically walled rotary grinding drum further comprises a curved screen access door 30 generally with curved lateral ends positioned generally concentrically with and below the elongated foraminated screen 150 and having its lateral ends in engaging contact with the means for housing the cylindrically walled rotary grinding drum when said door is in a closed position.
  • the screen access door 30 is hingedly connected to and having a horizontal hinge 58 and a means to secure said screen access door 30, such as a pivotal bolt 28. As shown in FIG. 2, the screen access door operating between a raised position 30 during operation wherein said means to secure said screen access door is employed and said door is closed, and a lowered position 30' for access to the elongated foraminated screen.
  • the screen door 30 further has a passageway 30a positioned below and in communication with the screen 150 through which comminuted work material may pass.
  • the means for allowing work material and process air into and out of a region between the cylindrically grinding drum and said stator further comprises: an elongated opening 22 positioned in the means for housing the cylindrically walled rotary grinding drum parallel to the axis of the cylindrically walled rotary grinding drum 72; and a discharge duct 10 mountingly disposed below and in communication with the passageway 30a of the screen door 150; an air control damper 22 in the means for housing the cylindrically walled rotary grinding drum having an elongated opening and an adjustable cover plate to regulate the inflow of process air.
  • the process air may be controlled by automatic dampers connected to a controller in another embodiment of the invention.
  • FIG. 5 shows a partial side elevation view of a preferred embodiment of the present invention showing the detail of a means to manually adjustment the position of the hopper feeder so that it may be re-positioned for various sizes of work material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
EP94300976A 1993-02-19 1994-02-10 Dispositif de brayage rotatif pour petits blocs. Withdrawn EP0611600A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
PCT/US1993/001555 WO1994019108A1 (fr) 1993-02-19 1993-02-19 Dispositif rotatif pour emietter de petits blocs
WOPCT/US93/01555 1993-02-19
US08/098,455 US5402948A (en) 1993-04-30 1993-04-30 Comminuting device with face
US98455 1993-04-30

Publications (2)

Publication Number Publication Date
EP0611600A2 true EP0611600A2 (fr) 1994-08-24
EP0611600A3 EP0611600A3 (fr) 1995-01-25

Family

ID=26786399

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Application Number Title Priority Date Filing Date
EP94300976A Withdrawn EP0611600A3 (fr) 1993-02-19 1994-02-10 Dispositif de brayage rotatif pour petits blocs.

Country Status (4)

Country Link
EP (1) EP0611600A3 (fr)
JP (1) JPH06315647A (fr)
AU (1) AU5495894A (fr)
CA (1) CA2114309A1 (fr)

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EP0876843A1 (fr) * 1997-05-10 1998-11-11 HAMMEL Recyclingtechnik GmbH Dispositif de broyage de matière
FR2791278A1 (fr) * 1999-03-26 2000-09-29 France Etat Broyeur
EP0995493A3 (fr) * 1998-10-18 2000-11-22 GETECHA Gesellschaft für technische Anlagen mbH Granulateur de matière plastique
CN100386154C (zh) * 2006-05-17 2008-05-07 江苏牧羊集团有限公司 一种粉碎机的喂料机构
CN107457052A (zh) * 2017-09-11 2017-12-12 南京工业职业技术学院 一种中草药破碎机
CN108855436A (zh) * 2018-08-08 2018-11-23 云南缘矿科技开发有限公司 一种选矿设备
CN113509983A (zh) * 2021-03-31 2021-10-19 安徽捷迅光电技术有限公司 一种破碎茶叶梗连芽装置
CN113680482A (zh) * 2021-08-24 2021-11-23 马宁 一种环卫中心用的自动化垃圾打碎装置
CN114308304A (zh) * 2021-11-30 2022-04-12 南京信息职业技术学院 一种自动化玉米芯粉碎装置
CN114589014A (zh) * 2020-12-04 2022-06-07 笙特科技股份有限公司 离心装置及锁定模块
CN115159175A (zh) * 2022-06-15 2022-10-11 华能伊敏煤电有限责任公司 一种升降式电厂卸煤装置
CN115159174A (zh) * 2022-06-15 2022-10-11 华能伊敏煤电有限责任公司 一种用于煤车的卸煤装置
CN116984082A (zh) * 2023-09-26 2023-11-03 山西旺龙药业集团有限公司 一种制备猴头健胃灵胶囊的材料粉碎装置及其制备工艺
CN117000370A (zh) * 2023-05-29 2023-11-07 苏州市建筑材料再生资源利用有限公司 一种废弃粘土砖再生骨料制备装置

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JP2011131169A (ja) * 2009-12-24 2011-07-07 Matsui Mfg Co 粉砕機及び粉砕システム
CN114121390B (zh) * 2021-12-07 2023-11-03 萍乡市长岭电瓷制造有限公司 一种盘形悬式瓷绝缘子生产用搅拌磨机
CN114653444A (zh) * 2022-05-27 2022-06-24 徐州科星科技发展有限公司 一种易清洁的饲料生产用原材料破碎机
CN116273390B (zh) * 2023-02-09 2024-12-13 福建省宏拓机械制造有限公司 一种管桩端板生产用废铁回收除杂设备
CN116197022A (zh) * 2023-04-27 2023-06-02 天马（安徽）国药科技股份有限公司 一种用于中药粉剂生产加工的粉碎研磨装置
CN118204171A (zh) * 2024-03-26 2024-06-18 山东奥星新材料股份有限公司 一种片状塑料助剂产品的粉碎装置

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US4015782A (en) * 1975-07-09 1977-04-05 Granite Bernard H Device for reducing polymers or the like to substantially uniform small size pieces
FR2327819A2 (fr) * 1975-10-14 1977-05-13 Maillet Edgard Dechiqueteur pour le conditionnement des ferrailles d'epaisseur au plus egale a 5 mm
FR2492687B1 (fr) * 1980-07-23 1985-07-19 Socea Balency Sobea Broyeur a lames de coupe utilisable notamment pour le dechiquetage fin de la fraction legere de dechets menagers
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Cited By (21)

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Publication number Priority date Publication date Assignee Title
EP0876843A1 (fr) * 1997-05-10 1998-11-11 HAMMEL Recyclingtechnik GmbH Dispositif de broyage de matière
EP0995493A3 (fr) * 1998-10-18 2000-11-22 GETECHA Gesellschaft für technische Anlagen mbH Granulateur de matière plastique
FR2791278A1 (fr) * 1999-03-26 2000-09-29 France Etat Broyeur
CN100386154C (zh) * 2006-05-17 2008-05-07 江苏牧羊集团有限公司 一种粉碎机的喂料机构
CN107457052A (zh) * 2017-09-11 2017-12-12 南京工业职业技术学院 一种中草药破碎机
CN107457052B (zh) * 2017-09-11 2024-02-02 南京工业职业技术学院 一种中草药破碎机
CN108855436B (zh) * 2018-08-08 2023-05-23 云南缘矿科技开发有限公司 一种选矿设备
CN108855436A (zh) * 2018-08-08 2018-11-23 云南缘矿科技开发有限公司 一种选矿设备
CN114589014A (zh) * 2020-12-04 2022-06-07 笙特科技股份有限公司 离心装置及锁定模块
CN113509983A (zh) * 2021-03-31 2021-10-19 安徽捷迅光电技术有限公司 一种破碎茶叶梗连芽装置
CN113680482A (zh) * 2021-08-24 2021-11-23 马宁 一种环卫中心用的自动化垃圾打碎装置
CN114308304A (zh) * 2021-11-30 2022-04-12 南京信息职业技术学院 一种自动化玉米芯粉碎装置
CN114308304B (zh) * 2021-11-30 2023-02-03 南京信息职业技术学院 一种自动化玉米芯粉碎装置
CN115159175A (zh) * 2022-06-15 2022-10-11 华能伊敏煤电有限责任公司 一种升降式电厂卸煤装置
CN115159174B (zh) * 2022-06-15 2023-06-23 华能伊敏煤电有限责任公司 一种用于煤车的卸煤装置
CN115159175B (zh) * 2022-06-15 2023-06-23 华能伊敏煤电有限责任公司 一种升降式电厂卸煤装置
CN115159174A (zh) * 2022-06-15 2022-10-11 华能伊敏煤电有限责任公司 一种用于煤车的卸煤装置
CN117000370A (zh) * 2023-05-29 2023-11-07 苏州市建筑材料再生资源利用有限公司 一种废弃粘土砖再生骨料制备装置
CN117000370B (zh) * 2023-05-29 2024-05-17 苏州市建筑材料再生资源利用有限公司 一种废弃粘土砖再生骨料制备装置
CN116984082A (zh) * 2023-09-26 2023-11-03 山西旺龙药业集团有限公司 一种制备猴头健胃灵胶囊的材料粉碎装置及其制备工艺
CN116984082B (zh) * 2023-09-26 2023-12-05 山西旺龙药业集团有限公司 一种制备猴头健胃灵胶囊的材料粉碎装置及其制备工艺

Also Published As

Publication number Publication date
EP0611600A3 (fr) 1995-01-25
CA2114309A1 (fr) 1994-08-20
JPH06315647A (ja) 1994-11-15
AU5495894A (en) 1994-08-25

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