US3447758A - Multiple impact breaker - Google Patents

Multiple impact breaker Download PDF

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Publication number
US3447758A
US3447758A US474190A US3447758DA US3447758A US 3447758 A US3447758 A US 3447758A US 474190 A US474190 A US 474190A US 3447758D A US3447758D A US 3447758DA US 3447758 A US3447758 A US 3447758A
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United States
Prior art keywords
impact
impeller
housing
impeller means
plates
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Expired - Lifetime
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US474190A
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English (en)
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Nicolas Oznobichine
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
    • B02C13/09—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor and throwing the material against an anvil or impact plate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
    • B02C13/09—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor and throwing the material against an anvil or impact plate
    • B02C13/095—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor and throwing the material against an anvil or impact plate with an adjustable anvil or impact plate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/20—Disintegrating by mills having rotary beater elements ; Hammer mills with two or more co-operating rotors

Definitions

  • the present invention relates to a multiple impact breaker for comminuting or crushing blocks of hard material, such as stones or the like, in which two impeller or rotor means act on the material.
  • the multiple impact breaker mainly comprises a housing having an inlet opening at an upper portion thereof for feeding material to be crushed into the housing, a pair of impeller means mounted in the housing rotatable about substantially parallel horizontal axes and in the same direction for crushing the material fed through the inlet opening into the housing, and in which one of the impeller means is located below the inlet opening so that the material fed therethrough will be impelled by the one impeller means in one direction where as the axis of the other impeller means is located at a lower elevation than the axis of the one impeller means and preferably in the direction at which the material is impelled by said one impeller means forwardly of the axis of said one impeller means.
  • the impact breaker includes further impact means in the housing constructed and arranged with respect to the pair of impeller means in such a manner that the material impelled by the one impeller means is transmitted for further action to the other impeller means, and outlet means in the housing below the other impeller means for discharging the crushed material therefrom.
  • the lower impeller means may be driven with the same or with a Patented June 3, 1969 greater peripheral speed than the upper impeller means.
  • the upper impeller means has preferably a plurality of striking blades rigidly mounted thereon, whereas the lower impeller means preferably has a plurality of striking blades which are tiltably mounted thereon.
  • the impact means preferably comprise a plurality of impact plates respectively located in the path of the material impelled by the impeller means and one of the impact plates which co-operates with the lower impeller means may be in the form of a grate permitting partly crushed material to pass therethrough so that the material passing through the grate will not be subjected to further crushing action by the lower impeller means.
  • the housing is in a preferred arrangement constructed as a two-part housing which has a main portion and a front portion pivotally connected to the main portion and movable with respect to the main portion between a closed position in which facing edges of the aforesaid portions abut against each other and an open position.
  • the two impellers are turnably mounted in the main portion, whereas the impact means or impact plates are mounted on the front portion.
  • This front portion may also have a removable portion on which the impact plate which is subjected to the greatest wear is mounted so that this impact plate may be easily removed, if exchange or repair thereof should become necessary.
  • FIG. 1 is a cross-sectional side view of the multiple impact breaker according to the present invention
  • FIG. 2 is a cross-section taken along the line IIII of FIG. 1 and drawn to an enlarged scale;
  • FIG. 3 is a front View of the lower impeller
  • FIG. 4 is a cross-sectional view through another embodiment of the lower impeller.
  • FIG. 5 is a front view of the impeller shown in FIG. 4.
  • the multiple impact breaker mainly comprises a housing 1 in which a pair of impeller means 2 and 3 are mounted respectively rotatable about substantially parallel horizontal axes x and y.
  • the axes x and y of the two impeller means are located in a plane z-z which is inclined at an angle between 30 and to the horizontal.
  • the two impeller means 2 and 3 are r0- tated by conventional means, not shown in the drawing, in the same direction as indicated by the arrows F, and the axis y of the lower impeller means'3 is located in direction of the rotation of the impeller means forwardly of the axis x of the upper impeller means 2.
  • the upper impeller means 2 has preferably a cylin drical rotor of relatively large diameter and mass and a plurality of striking blades 4 are arranged uniformly spaced from each other about the peripheral surface of the cylindrical rotor.
  • the striking blades 4 are connected to the cylindrical rotor of the upper impeller means in a fixed manner by bolts or the like and the cylindrical rotor may also be formed with appropriate grooves extending in longitudinal direction thereof in which inner radial portions of the striking blades 4 may be respectively inserted.
  • the lower impeller means 3 preferably constructed in such a manner that the striking blades or striking hammers 9 mounted thereon may yield when striking the material to be crushed.
  • the rotor of the impeller means 3 is formed from a plurality of plates 22 which are fixed spaced from each other in any well known manner to the shaft of the lower impeller means while the striking hammers or striking blades 9 are respectively pivotally mounted on pins 10 for turning about the axes of these pins.
  • the hammers 9 When the lower impeller means 3 is rotated at high speed about its axis the hammers 9 will extend in radial direction so that the radial outer ends thereof will protrude beyond the peripheral surface of the plates 22, whereas when the hammers 9 encounter during impact on the material to be crushed considerable resistance they may respectively turn about the pins 10. In the embodiment of the lower impeller means 3 shown in FIGS. 1 and 3, the hammers 9 may turn through 360 about the pins 10 on which they are mounted.
  • FIGS. 4 and 5 Another embodiment 3' for the lower impeller means is shown in FIGS. 4 and 5.
  • the hammers 9' have a substantially T-shaped configuration as best shown in FIG. 5 and the hammers 9' are likewise mounted at their inner ends thereof on pins 10 and these inner ends of the hammers extend between spaced plates 22 which are likewise fixed in any known manner to the shaft of the lower impeller means 3'.
  • the hammers 9 may turn only through an angle of about 90 to 120 as indicated in FIG. 4 until the bottom faces of the outer transverse portions of the T-shaped hammers 9' engage the peripheral surface of the plates 22.
  • the arrangement of the lower impeller means 3' as shown in F165. 4 and 5 has the advantage over the embodiment of the lower impeller means shown in FIGS. 1 and 3 that the outer transverse portions of the hammers 9' will present a substantially uninterrupted striking surface over the whole length of the impeller means 3'.
  • the lower impeller means may also have rigidly mounted striking blades provided thereon in the same manner as the upper impeller means 2.
  • the multiple impact breaker according to the present invention includes further a plurality of impact means or impact plates arranged in the housing 1 and cooperating with the impellers 2 and 3 in such a manner that the material to be crushed and fed through the inlet opening 5 in the upper end of the housing 1 and impelled by the impellers 2 and 3 will rebound on the impact plates toward the impellers, and the material impelled by the upper impeller 2 will be transmitted to the lower impeller 3 for further comminuting action.
  • a pair of impact plates 6 and 6a cooperate with the upper impeller 2.
  • the two impact plates 6 and 6a partly overlap each other and each has an upper edge spaced further than the lower edge from the peripheral-surface of the upper impeller 2.
  • the lower edge of the impact plate 6a is located at a lower elevation than, and forwardly of, the lower edge of the impact plate 6.
  • the lower edge of the impact plate 6 is located substantially in a vertical plane passing through the axis x of the upper impeller 2, whereas the lower edge of the plate 6a faces an ascending portion of the lower impeller 3.
  • Both plates are in the region of the upper edges thereof pivotally mounted in the housing 1 for tilting movement about substantially horizontal axes 7 and 7a, respectively.
  • the plates 6 and 6a preferably have concavely curved inner faces directed toward the upper impeller 2.
  • a holding means in the form of a rod 8 is pivotally connected at one end thereof to the impact plate 6 at a location spaced from the pivot axis 7 thereof, and a corresponding holding means or rod 8a is pivotally connected at one end thereof to the plate 6a spaced from the pivot axis 7a thereof.
  • the other ends of the rods 8 and 8a which are threaded, extend through appropriate openings in the housing 1 to the outside thereof and nuts threadingly connected to the ends of the rods 8 and 8a projecting beyond the wall of the housing 1 abut against the outer surface of the housing wall to prevent thereby inward movement of the rods 8 and 8a, so that the lower edges of the plates 6 and 6a are held at a predetermined distance from the periphery of the upper impeller means 2, while the plates 6 and 6a may respectively pivot about their pivot axis toward the wall of the housing under the impact of material impelled thereagainst by the impeller means 2. It is, however, obvious from the arrangement shown in FIG. 1 that the impact plates 6 and 6a will tend to stay in the position as shown in FIG.
  • the outer ends of the rods 8 and 8a preferably have also a counter or lock nut attached thereto to assure that the first-mentioned nuts are not loosened due to the shocks they are subjected to. It is evident that the position of the plates 6 and 6a may be adjusted by turning the nuts at the outer ends of the rods 8 and 8a in one or the other direction.
  • the arrangement includes, further, a third impact plate 11 which is located below the impact plate 6a and forwardly thereof and which co-operates with the lower impeller means 3.
  • the impact plate 11 is likewise pivotally mounted in the region of the upper edge thereof tiltable about a substantially horizontal axis and the impact plate 11 is held in the position shown by means of a rod pivotally attached at one end thereof substantially to the center of the plate 11 and which carries at the other end thereof, projecting beyond the housing, a pair of nuts 50 as to hold the lower edge of impact plate 11 at a desired minimum distance from the periphery of the lower impeller means 3, while permitting the plate 11 to pivot about its pivot axis toward the wall of the housing 1 under the impact of material impelled thereagainst by the lower impeller means 3.
  • the impact plate 11 is preferably in the form of a grate having openings which preferably increase in cross section from the inner concavely curved impact face of the impact plate 11 toward the opposite face thereof as best shown in FIG. 2.
  • the impact plates 6, 6a, and 11 are preferably symmetrically constructed so that after wear thereof they may be turned around to be pivoted along the other edge thereof.
  • the impact plates 6, 6a and 11 defines as seen in FIG. 1, with the peripheral surfaces of the impellers 2 and 3 separated working spaces in which the material will be forcibly thrown back and forth between impellers and plates to be crushed thereby.
  • the arrangement includes further a fourth impact plate 12 which has, as clearly shown in FIG. 1, a stepped impact face defining with the periphery of the lower rotor 3 a gradually narrowing gap.
  • the fourth impact plate 12 is mounted on a pair of arms (only one being shown in the drawing) the upper ends of which are pivotally mounted at 13 in a casing 15, which is preferably removably connected to the front wall of the housing by screws or the like. By disconnecting the casing 15 from the remainder of the housing, the impact plate 12 which is subjected to relatively great wear can be easily removed from the housing for repair or replacement purposes.
  • a rod 20 is pivotally connected at one end thereof to the impact plate 12 in the region of the lower end of the latter and the other end of the rod 20 projects through an appro priate opening to the outside of the housing 1 and carries at the outside thereof a nut threadingly attached thereto so that the minimum dihtance of the lower edge of the impact plate 12 from the periphery of the lower impeller 3 is established by the position of the nut on the outer end of the rod 20, while the impact plate 12 may pivot about its pivot axis 13 to increase the minimum distance between the lower edge of the plate 12 and the periphery of the impeller 3.
  • a coil compression spring 14 abutting with one end thereof against an inner surface portion of the housing is located about a portion of the rod 20 and the other end of the coil spring 14 abuts against a fixed abutment 21 on rod 20 so that the coil compression spring 14 tends to move the lower edge of the impact plate 12 toward the periphery of the lower impeller 3 as far as the nut on the outer end of the rod 20 will permit. If unbreakable material passes through the gap between the inner surface of the impact plate 12 and the lower impeller 3, the coil spring 14 will be compressed and will permit yielding of the impact plate 12 in outward direction.
  • the impact plate 11 is replaced by a plain and smooth impact plate which preferably carries at the outer surface thereof directed away from the impellers, heating means for heating the impact plate 11, and such heating means may also be provided on the impact plates 6 and 6a.
  • the housing 1 is preferably a two-part housing having a main portion fixedly mounted on a foundation and having a front edge as indicated by the dotted line 16 in FIG. 1 against which the rear edge of the front portion of the housing abuts, which is pivotally connected at 17 to the main portion movable between a closed position, as shown in FIG. 1, and an open position.
  • a jack 18 which may be a fluid operated jack is pivotally connected at the lower end thereof to the main portion of the housing and at the upper end thereof to the front portion of the housing so that by extending the jack 18 the front portion of the housing may be moved from the closed to the open position.
  • the impeller means 2 and 3 are turnably mounted in the main portion of the housing whereas the impact plates 6, 6a, 11 and 12 are carried by the front portion of the housing.
  • a multiple impact breaker comprising, in combination, a housing having an inlet opening in an upper portion thereof for feeding material to be crushed into said housing; a pair of impeller means mounted in said housing rotatable about substantially parallel horizontal axes and in the same direction for crushing the material fed through said inlet opening into said housing, one of said impeller means being located below said inlet opening so that the material fed therethrough will be impelled by said one impeller means in one direction, the axis of the other impeller means being located at a lower elevation than the axis of said one impeller means; impact means in said housing constructed and arranged with respect to said pair of impeller means in such a manner that the material impelled by said one impeller means is transmitted for further action to said other impeller means, said impact means comprising a plurality of im pact plates which are offset relative to one another and each of which has a leading edge located at a lower elevation and closer to the axis of the respective impeller means than the trailing edge thereof, at least one of said impact plates being arranged so that the
  • a multiple impact breaker comprising, in combination, a housing having an inlet opening in an upper portion thereof for feeding material to be crushed into said housing; an upper impeller located in said housing below said inlet opening and rot-atable about a horizontal axis, said upper impeller having a plurality of striking blades rigidly mounted thereon so that the material fed through said inlet opening will be impelled by said blades in one direction; a lower impeller in said housing rota-table in the same direction as said upper impeller about a horizontal axis located in said one direction forwardly of and at an elevation below the axis of said upper impeller, said lower impeller having a plurality of striking blades yieldably mounted thereon; a pair of impact plates having each a concavely curved impact face facing said upper impeller, said pair of impact plates partly overlapping each other and each having an upper edge spaced further than the lower edge thereof from the peripheral surface of said upper impeller, the lower edge of one of said pair of impact plates being located at a lower elevation than and in said one direction
  • a multiple impact breaker comprising, in combination, a housing having an inlet opening for feeding material to be crushed into said housing; a pair of impeller means mounted in said housing rotatable about substantially parallel horizontal axes and in the same direction, one of said impeller means being located below said inlet opening so that the material fed therethrough will be impelled by said one impeller means in said direction and the axis of the other impeller means being located at a lower elevation than that of said one impeller means; and a plurality of spaced impact plates in said housing, a first one of which is located adjacent said inlet opening, said plates being arranged with respect to said impeller means in such a manner that the material impelled by said impeller means will be thrown against said impact plates and so that said impeller plates define with peripheral surfaces of said impeller means at least three separated working spaces following each other in said direction, each of said impact plates having a bottom edge at a lower elevation than a top edge thereof and the bottom edge of said one impact plate being arranged substantially in a vertical plane passing through the axis

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
US474190A 1964-07-23 1965-07-22 Multiple impact breaker Expired - Lifetime US3447758A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR982715A FR1409886A (fr) 1964-07-23 1964-07-23 Broyeur multiple

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US (1) US3447758A (de)
AT (1) AT253904B (de)
BE (1) BE664777A (de)
CH (1) CH422487A (de)
DE (1) DE1264938C2 (de)
FR (1) FR1409886A (de)
GB (1) GB1104807A (de)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3637145A (en) * 1968-09-24 1972-01-25 Crusher & Pulverizer Co Inc Reversible material reducing mill
US3659794A (en) * 1969-07-08 1972-05-02 Hazemag Hartzerkleinerung Comminuting device
US3704834A (en) * 1970-02-20 1972-12-05 Harry Nilsson Apparatus for disintegration and separation of soil and similar materials
US3857520A (en) * 1972-10-27 1974-12-31 Unice Machine Co Oscillating anvil disintegrator
JPS5071871U (de) * 1973-11-01 1975-06-24
JPS5392270U (de) * 1977-12-20 1978-07-27
US4140284A (en) * 1975-09-15 1979-02-20 Hazemag Dr. E. Andreas Gmbh & Co. Impact crusher
JPS5690941U (de) * 1979-12-14 1981-07-20
US4506837A (en) * 1981-04-17 1985-03-26 Fried.Krupp Gesellschaft Mit Beschraenkter Haftung Impact crusher
US4542856A (en) * 1982-09-14 1985-09-24 Lindemann Maschinenfabrik Gmbh Hammer breaker
US5255869A (en) * 1992-10-26 1993-10-26 Smith Roger G Impact crusher with biased tertiary curtain assembly
US6227469B1 (en) 1999-10-28 2001-05-08 Precision Husky Corporation Comminuting machine
CN102294283A (zh) * 2011-06-29 2011-12-28 江油黄龙破碎输送设备制造有限公司 一种三转子反击式破碎机
CN103736552A (zh) * 2013-07-31 2014-04-23 盘县金阳机械加工有限责任公司 横直搓碾式公分石防尘破碎机
USD815156S1 (en) 2017-03-10 2018-04-10 Cnh Industrial Canada, Ltd. Meter roller for an agricultural metering system
USD815157S1 (en) 2017-03-10 2018-04-10 Cnh Industrial Canada, Ltd. Meter roller for an agricultural metering system
USD816726S1 (en) 2017-03-09 2018-05-01 Cnh Industrial Canada, Ltd. Meter roller for an agricultural metering system
US10085376B1 (en) 2017-03-09 2018-10-02 Cnh Industrial Canada, Ltd. Meter roller for an agricultural metering system
CN108970724A (zh) * 2018-07-27 2018-12-11 长沙市凤英机械科技有限公司 一种煤矿粉碎筛选装置
US10149429B2 (en) 2017-03-09 2018-12-11 Cnh Industrial Canada, Ltd. Meter roller for an agricultural metering system
US10292324B2 (en) 2017-03-10 2019-05-21 Cnh Industrial Canada, Ltd. Meter roller for an agricultural metering system
US10362727B2 (en) 2017-03-14 2019-07-30 Cnh Industrial Canada, Ltd. Flow control insert for an agricultural metering system
US10390479B2 (en) 2017-03-14 2019-08-27 Cnh Industrial Canada, Ltd. Flow control insert for an agricultural metering system
US10405485B2 (en) 2017-03-09 2019-09-10 Cnh Industrial Canada, Ltd. Meter roller for an agricultural metering system
CN111589499A (zh) * 2020-06-03 2020-08-28 安徽绪稻康建筑工程咨询有限公司 一种建筑垃圾挤压破碎组件

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EP0136600A3 (de) * 1983-10-05 1986-12-17 Ernst König Prallmühle
FR2583656A1 (fr) * 1985-06-25 1986-12-26 Collin Jean Claude Machine de dechiquetage de matieres ligneuses en vrac de grand volume
FR2991599A1 (fr) * 2012-06-07 2013-12-13 Gerard Pierre Heurgue Broyeur a marteaux a deux chambres de broyage superposees
CN103816961A (zh) * 2014-03-11 2014-05-28 景津环保股份有限公司 一种双驱动锤头式滤饼粉碎机

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US1472609A (en) * 1923-04-13 1923-10-30 Stanton C Martin Pulverizing machine
US2411302A (en) * 1942-05-30 1946-11-19 Pennsylvania Crusher Co Impactor
US2644644A (en) * 1951-06-08 1953-07-07 Pennsylvania Crusher Co Two stage hammer mill
US2665074A (en) * 1950-08-03 1954-01-05 Lee H Kessler Double impeller impact breaker
US2891734A (en) * 1955-09-06 1959-06-23 Hazemag Hartzerkleinerung Disintegrating asbestos ores
US2977055A (en) * 1958-07-02 1961-03-28 Bath Iron Works Corp Apparatus for pulverizing coal and the like
US3058676A (en) * 1960-02-23 1962-10-16 Charles E Hermann Rock crusher
US3083921A (en) * 1961-05-02 1963-04-02 Bath Iron Works Corp Dust prevention device for rotary impactor
US3224688A (en) * 1962-01-22 1965-12-21 Honolulu Iron Works Company Shredder

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DE1106152B (de) 1958-05-13 1961-05-04 Hazemag Hartzerkleinerung Prallmuehle mit pneumatischem Austrag
US3096035A (en) * 1960-08-04 1963-07-02 Barber Greene Co Rotary impact crusher

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Publication number Priority date Publication date Assignee Title
US1472609A (en) * 1923-04-13 1923-10-30 Stanton C Martin Pulverizing machine
US2411302A (en) * 1942-05-30 1946-11-19 Pennsylvania Crusher Co Impactor
US2665074A (en) * 1950-08-03 1954-01-05 Lee H Kessler Double impeller impact breaker
US2644644A (en) * 1951-06-08 1953-07-07 Pennsylvania Crusher Co Two stage hammer mill
US2891734A (en) * 1955-09-06 1959-06-23 Hazemag Hartzerkleinerung Disintegrating asbestos ores
US2977055A (en) * 1958-07-02 1961-03-28 Bath Iron Works Corp Apparatus for pulverizing coal and the like
US3058676A (en) * 1960-02-23 1962-10-16 Charles E Hermann Rock crusher
US3083921A (en) * 1961-05-02 1963-04-02 Bath Iron Works Corp Dust prevention device for rotary impactor
US3224688A (en) * 1962-01-22 1965-12-21 Honolulu Iron Works Company Shredder

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3637145A (en) * 1968-09-24 1972-01-25 Crusher & Pulverizer Co Inc Reversible material reducing mill
US3659794A (en) * 1969-07-08 1972-05-02 Hazemag Hartzerkleinerung Comminuting device
US3704834A (en) * 1970-02-20 1972-12-05 Harry Nilsson Apparatus for disintegration and separation of soil and similar materials
US3857520A (en) * 1972-10-27 1974-12-31 Unice Machine Co Oscillating anvil disintegrator
JPS5071871U (de) * 1973-11-01 1975-06-24
US4140284A (en) * 1975-09-15 1979-02-20 Hazemag Dr. E. Andreas Gmbh & Co. Impact crusher
JPS5392270U (de) * 1977-12-20 1978-07-27
JPS5690941U (de) * 1979-12-14 1981-07-20
US4506837A (en) * 1981-04-17 1985-03-26 Fried.Krupp Gesellschaft Mit Beschraenkter Haftung Impact crusher
US4542856A (en) * 1982-09-14 1985-09-24 Lindemann Maschinenfabrik Gmbh Hammer breaker
US5255869A (en) * 1992-10-26 1993-10-26 Smith Roger G Impact crusher with biased tertiary curtain assembly
US6227469B1 (en) 1999-10-28 2001-05-08 Precision Husky Corporation Comminuting machine
CN102294283A (zh) * 2011-06-29 2011-12-28 江油黄龙破碎输送设备制造有限公司 一种三转子反击式破碎机
CN102294283B (zh) * 2011-06-29 2013-04-24 四川皇龙智能破碎技术股份有限公司 一种三转子反击式破碎机
CN103736552A (zh) * 2013-07-31 2014-04-23 盘县金阳机械加工有限责任公司 横直搓碾式公分石防尘破碎机
US10405485B2 (en) 2017-03-09 2019-09-10 Cnh Industrial Canada, Ltd. Meter roller for an agricultural metering system
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US10085376B1 (en) 2017-03-09 2018-10-02 Cnh Industrial Canada, Ltd. Meter roller for an agricultural metering system
US11406054B2 (en) 2017-03-09 2022-08-09 Cnh Industrial Canada, Ltd. Meter roller for an agricultural metering system
US10149429B2 (en) 2017-03-09 2018-12-11 Cnh Industrial Canada, Ltd. Meter roller for an agricultural metering system
US11388855B2 (en) 2017-03-09 2022-07-19 Cnh Industrial Canada, Ltd. Meter roller for an agricultural metering system
US10624254B2 (en) 2017-03-09 2020-04-21 Cnh Industrial Canada, Ltd. Meter roller for an agricultural metering system
US10542665B2 (en) 2017-03-09 2020-01-28 Cnh Industrial Canada, Ltd. Meter roller for an agricultural metering system
USD815156S1 (en) 2017-03-10 2018-04-10 Cnh Industrial Canada, Ltd. Meter roller for an agricultural metering system
USD815157S1 (en) 2017-03-10 2018-04-10 Cnh Industrial Canada, Ltd. Meter roller for an agricultural metering system
US10292324B2 (en) 2017-03-10 2019-05-21 Cnh Industrial Canada, Ltd. Meter roller for an agricultural metering system
US10390479B2 (en) 2017-03-14 2019-08-27 Cnh Industrial Canada, Ltd. Flow control insert for an agricultural metering system
US10362727B2 (en) 2017-03-14 2019-07-30 Cnh Industrial Canada, Ltd. Flow control insert for an agricultural metering system
US11266062B2 (en) 2017-03-14 2022-03-08 Cnh Industrial Canada, Ltd. Flow control insert for an agricultural metering system
CN108970724A (zh) * 2018-07-27 2018-12-11 长沙市凤英机械科技有限公司 一种煤矿粉碎筛选装置
CN111589499A (zh) * 2020-06-03 2020-08-28 安徽绪稻康建筑工程咨询有限公司 一种建筑垃圾挤压破碎组件

Also Published As

Publication number Publication date
AT253904B (de) 1967-04-25
CH422487A (de) 1966-10-15
BE664777A (de) 1965-10-01
DE1264938B (de) 1968-03-28
DE1264938C2 (de) 1978-06-08
FR1409886A (fr) 1965-09-03
GB1104807A (en) 1968-02-28

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