Double-acting impact crusher

Abstract

This design mitigates drawbacks such as the susceptibility of double-acting impact crushers to damage at high speeds. [Solution] The double-acting impact pulverizer (1) comprises a rotor device (2) having a first side surface (21) and a second side surface (13) opposite to the first side surface (21); a first drive shaft (14) extending outward from the second side surface (13) of the rotor device (2) and cooperating with at least one ring of the rotor device (2); a second drive shaft (15) extending outward from the first side surface (21) of the rotor device (2) and cooperating with at least one other ring of the rotor device (2); and at least one actuator cooperating with the drive shafts (14, 15), a supply port (16), and a discharge port (17). The rotor device (2) is configured to be driven from both sides (13, 21) of the rotor device (2).

Description

Technical Field

[0001] The present invention relates to a double-acting impact crusher.

Background Art

[0002] Document WO1999 / 054045 discloses a double-acting impact crusher.

[0003] Certain materials processed by a double-acting impact crusher require high-speed processing. One of the drawbacks associated with double-acting impact crushers is that they are prone to breakage at high speeds.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

[0005] The object of the present invention is to provide a double-acting impact crusher for reducing the above-mentioned drawbacks. The object of the present invention is achieved by a double-acting impact crusher having the features described in the independent claims. Preferred embodiments of the present invention are disclosed in the dependent claims.

[0006] The present invention is based on the idea of dividing the driving force of a double-acting impact crusher. The advantage of the double-acting impact crusher of the present invention is that it can withstand high speeds. Another advantage is that it facilitates the sealing of the shaft. Double-acting impact crushers are useful for processing materials such as pulp (especially wood pulp) or nanoparticles. These materials may be processed in a dry or wet state.

[0007] Hereinafter, a double-acting impact crusher in an operable state will be described.

[0008] The double-acting impact pulverizer comprises a rotor device, a first drive shaft, a second drive shaft, at least one actuator, a feed port, and a discharge port. The rotor device has a first side and a second side opposite to the first side. The rotor device comprises at least one first ring on the first side and at least one second ring on the second side. The first ring is provided with a first blade, and the second ring is provided with a second blade. The first ring and the second ring interlock; that is, each ring follows each other in the radial direction of the rotor device.

[0009] The rotor device may comprise at least two first rings on a first side of the rotor device and at least two second rings on a second side of the rotor device. The first rings are provided with first blades, and the second rings are provided with second blades. The first rings and second rings mesh with each other, arranged alternately. The first rings may be integrated into a single rotor to have the same direction of rotation and the same speed, or they may be driven independently. The second rings may be integrated into a single rotor to have the same direction of rotation and the same speed, or they may be driven independently. The number of first and second rings may be two or more. Furthermore, the number of first rings compared to the number of second rings may be ±1. The rings may be concentric or eccentric with respect to each other.

[0010] The first and second rings of the rotor assembly may be arranged such that the first ring is fixed to the upper side of the rotor assembly and the second ring is fixed to the lower side of the rotor assembly, or vice versa. The first and second rings may be arranged such that the first ring is fixed to the left side of the rotor assembly and the second ring is fixed to the right side of the rotor assembly, or vice versa. A preferred option for ultra-high speeds is that the first and second rings of the rotor assembly are arranged such that the first ring is fixed to the upper side of the rotor assembly and the second ring is fixed to the lower side of the rotor assembly, or vice versa.

[0011] A first drive shaft cooperates with at least one ring of the rotor device; that is, the first drive shaft is positioned to rotate at least one ring of the rotor device. A second drive shaft cooperates with at least one ring of the rotor device; that is, the second drive shaft is positioned to rotate at least one ring of the rotor device. If there is only one first ring and only one second ring, the first ring may cooperate with the first drive shaft and the second ring may cooperate with the second drive shaft, or vice versa. At least one actuator cooperates with at least one of the drive shafts; that is, at least one actuator is positioned to generate a driving force on at least one of the drive shafts. At least one actuator may generate a driving force on at least one of the drive shafts directly or via at least one intermediate shaft.

[0012] The rotor assembly is driven from both sides of the rotor assembly. This means that there is at least a first drive shaft extending outward from a second side of the rotor assembly, and a second drive shaft extending outward from the first side of the rotor assembly, and these shafts are driven by at least one actuator. The first and second drive shafts may extend perpendicular to the rotor assembly. In addition to the first and second shafts, there may be further shafts that cooperate with at least one ring of the rotor assembly.

[0013] The shaft is driven by one or more actuators. A double-acting impact grinder may have a first actuator for generating driving force in at least one ring and a second actuator for generating driving force in at least one other ring, or it may have only one actuator for generating driving force in the rings. It is also possible for a double-acting impact grinder to have three or more actuators. The actuators may be electric motors. The actuators may be directly driven, which is a preferred option. In this case, “directly driven” means that the actuator shaft is in direct contact with, or directly driven by, the shaft of the rotor device, or a shaft between the actuator shaft and the shaft of the rotor device. Direct contact may be formed, for example, via gears that directly transmit driving force from one shaft to another. Direct drive includes the option that the speed of the actuator shaft and the speed of the rotor device shaft are equal or different. Another option, although less preferred at ultra-high speeds, is belt drive. The belt may be a toothed belt or a conical belt, but a toothed belt is preferred.

[0014] The feed port is for supplying the material to be processed. The feed port may extend through one of the drive shafts or it may be a separate feed port. The feed port may open above or below the rotor device. A double-acting impact grinder can have multiple feed ports. In the case of multiple feed ports, there may be at least one feed port opening towards the top of the rotor device and at least one feed port opening towards the bottom of the rotor device. In addition to the material to be processed by the double-acting impact grinder, gaseous materials such as nitrogen may also be supplied to the double-acting impact grinder.

[0015] At ultra-high speeds, a separate feed port is a preferred option. The separate feed port may be an inclined pipe supplying material to the hub of the rotor assembly, or a straight pipe supplying material to the outer circumference of the rotor assembly. The material may be supplied through the separate feed port so that the material flows into the rotor assembly through one or more openings in the plane of the rotor.

[0016] The discharge port is for discharging the processed material. The discharge port may be a tangential opening on the outer circumference of the rotor device, or it may be a port accessible through the outer circumference of the rotor device without a specific opening. In the latter case, the rotor device may be placed inside the container. The supply port can also be used as the discharge port, and vice versa. That is, the material to be processed can be supplied through the discharge port, and the processed material can be drawn out of the rotor device through the supply port.

[0017] The rings may be rotated at a rotational speed in the range of 3,000 to 3,500 revolutions per minute. Even rotational speeds of 10,000 revolutions per minute or more are possible. Due to the structure described herein, the bearings, such as the bearing of the first drive shaft, can withstand high speeds, so the speed may be increased above the normal speed of 1,500 revolutions per minute. Each ring may have its own rotational speed. The rotational speed of the rings is adjustable. In general, each independently driven ring or group of rings may rotate in the same direction as or opposite to the other rings. At least one ring may be fixed or rotate periodically.

[0018] Double-acting impact grinders may be used at ultra-high speeds of at least 2000 revolutions per minute. Ultra-high speeds often refer to speeds exceeding 3000 revolutions per minute, and even exceeding 4000 revolutions per minute. Double-acting impact grinders used at ultra-high speeds may require several characteristics that are negligible at lower speeds. One or more of the characteristics described below may be utilized at ultra-high speeds. Mechanical power transmission is performed directly by direct drive or, for example, from one shaft to another via gears. This is because such devices can withstand ultra-high speeds and / or high efficiency. Solid drive shafts are preferred because their seals and bearings can be reliably manufactured. The rotor assembly consists of horizontal rotors stacked on top of each other, or a horizontal stator and horizontal rotors stacked on top of each other, with either the stator or rotor on top. By providing a horizontally oriented rotor assembly, the material to be processed is evenly distributed within the rotor assembly. This is important in terms of balance and wear of the rotor assembly. Furthermore, since the material to be processed can be supplied using gravity, supplying to a horizontally oriented rotor assembly is easy. Furthermore, if the rotor device is oriented horizontally, the drive shaft becomes vertical. A vertical drive shaft is preferable because it allows for easier control of the bearing load. In terms of other characteristics, ultra-high-speed double-acting impact pulverizers and low-speed double-acting impact pulverizers may be similar.

[0019] The present invention will be described in more detail below with reference to the attached drawings, using preferred embodiments. [Brief explanation of the drawing]

[0020] [Figure 1] This is a cross-sectional view of a double-acting impact type crusher. [Figure 2] This is a cross-sectional view of the rotor device. [Figure 3] This is a cross-sectional view of a double-acting impact type crusher. [Figure 4] This is a cross-sectional view of a double-acting impact type crusher. [Figure 5] This is a cross-sectional view of a double-acting impact type crusher. [Figure 6]It is a cross-sectional view of a double-acting impact crusher. [Figure 7] It is a cross-sectional view of a double-acting impact crusher. [Figure 8] It is a cross-sectional view of a double-acting impact crusher. [Figure 9] It is a cross-sectional view of a double-acting impact crusher. [Figure 10] It is a cross-sectional view of a double-acting impact crusher. [Figure 11] It is a cross-sectional view of a double-acting impact crusher. [Figure 12] It is a cross-sectional view of a double-acting impact crusher. [Figure 13] It is a cross-sectional view of a double-acting impact crusher. [Figure 14] It is a cross-sectional view of a rotor device. [Figure 15] It is a cross-sectional view of a double-acting impact crusher. [Figure 16] It is a cross-sectional view of a double-acting impact crusher. [Figure 17] It is a cross-sectional view of a double-acting impact crusher. [Figure 18] It is a cross-sectional view of a double-acting impact crusher. [Figure 19] It is a cross-sectional view of a double-acting impact crusher. [Figure 20] It is a cross-sectional view of a double-acting impact crusher. [Figure 21] It is a perspective view of the double-acting impact crusher of FIG. 20. [Figure 22] It is a cross-sectional view of a double-acting impact crusher.

Modes for Carrying Out the Invention

[0021] In the following figures, each part is assigned a unique number. Therefore, the parts described in relation to a certain figure are also applicable, where applicable, to the parts assigned the same number in relation to another figure.

[0022] Figure 1 shows a double-acting impact pulverizer 1. The double-acting impact pulverizer comprises a rotor device 2 with a housing 25, a hub 3 (shown in Figure 2), a first rotor 4 on one side of the rotor device 2, and a second rotor 7 on the other side of the rotor device 2. The first rotor 4 may be located above the second rotor 7, as shown in Figure 1, but the first rotor 4 and the second rotor 7 can also be arranged in parallel. The orientation of the other parts of the double-acting pulverizer 1 naturally changes depending on the orientation of the rotor device 2.

[0023] The first rotor 4 comprises a first plane 5 and first rings 72, 74 having first blades 6 protruding from the first plane 5. The first plane 5 may be oriented horizontally. The blades 6 have a surface for crushing the material being processed. The first rotor 4 is arranged to rotate around the hub 3.

[0024] The second rotor 7 includes a second plane 8, which may be oriented horizontally. The second rotor 7 is coaxial with the first rotor 4 and includes second rings 71, 73, which are provided with second blades 9 protruding from the second plane 8. The blades 9 have a surface for crushing the material being processed. The second rotor 7 is positioned to rotate around the hub 3 such that the first rings 72, 74 of the first rotor 4 and the second rings 71, 73 of the second rotor 7 mesh. The second rotor 7 may rotate in the opposite direction to the first rotor 4 or in the same direction.

[0025] The rotor device 2 includes a feed port 16 that starts from a frame 20 on the side 21 of the first rotor 4 and opens toward the hub 3 of the rotor device 2. The feed port 16 may have a diameter of about 100 mm. The feed port 16 is fixed. The rotor device 2 also includes a discharge port 17. The discharge port 17 may be a tangential opening on the outer circumference of the first rotor 4 and the second rotor 7.

[0026] The double-acting impact crusher 1 also includes a first actuator 10 for generating driving force for a first rotor 4 and a second actuator 11 for generating driving force for a second rotor 7. The first actuator 10 and the second actuator 11 may be direct-driven or belt-driven electric motors. The belt may be a toothed belt or a conical belt, but a toothed belt is preferred.

[0027] On the side surface 13 of the second rotor 7 is a body tube 12 extending perpendicular to the second plane 8. The body tube 12 may be supported by a second frame 22. Inside the body tube 12 are a bearing 24 for the first drive shaft 14 and mechanical seals 23 and 27 for the first drive shaft 14. The mechanical seals 23 and 27 are smaller in diameter compared to known double-impact pulverizers, making sealing easier.

[0028] The first drive shaft 14 is located between the first rotor 4 and the first actuator 10. The first drive shaft 14 may extend vertically. The first drive shaft 14 is supported inside the main tube 12 via bearings. The first drive shaft 14 may have a diameter of, for example, 80 mm. The first actuator 10 rotates a conical gear 18, which in turn rotates a conical gear 28. The conical gear 28 rotates the first drive shaft 14. The conical gears 18 and 28 form a pair of conical gears 38.

[0029] The second drive shaft 15 is located between the second rotor 7 and the frame 20. The second drive shaft 15 may extend vertically. The second drive shaft 15 is a hollow shaft and is supported by bearings 26 on the frame 20, surrounding the feed port 16. The second drive shaft 15 extends perpendicularly from the second rotor 7 to the second plane 8. The second drive shaft 15 may have a larger diameter than the first drive shaft 14. The feed port 16 passes through the hollow second drive shaft 15. The second actuator 11 rotates a cone gear 19, which in turn rotates a cone gear 29. The cone gear 29 rotates the second drive shaft 15. The cone gears 19 and 29 form a pair of cone gears 38.

[0030] Figure 2 shows a cross-sectional view of a rotor device 2 that may be arranged in a double-acting impact crusher 1. The rotor device 2 comprises alternating first rings 72, 74, 78 and second rings 71, 73, 79, 81. The first rings belong to the first rotor 4, and the second rings 71, 73, 79, 81 belong to the second rotor 7. However, the order of the first and second rings can be changed. It is also possible to rotate at least one of the first rings 72, 74, 78 and / or at least one of the second rings 71, 73, 79, 81 independently. The first rotor 4 may be rotated in a certain direction, the second rotor 7 may be rotated in the opposite direction to the first rotor 4, or both rotors may be rotated in the same direction. The first rings 72, 74, 78 are equipped with first blades 6, and the second rings 71, 73, 79, 81 are equipped with second blades 9. The first and second blades 6 and 9 may be rectangular or triangular, as shown in Figure 2. The first and second blades 6 and 9 may be radially oriented, but other orientations are also possible. The rotor device further includes a hub 3 and an outlet 17, which may be a tangential opening, as shown in Figure 2.

[0031] Figure 3 shows a double-acting impact pulverizer 1. The double-acting impact pulverizer comprises a housing 25, a hub 3, and a rotor assembly 2 comprising a first rotor 4 on one side of the rotor assembly 2, a second rotor 7 on the other side of the rotor assembly 2, and a third rotor 30 surrounding the first rotor 4 and the second rotor 7. The first rotor 4 may be located above the second rotor 7, as shown in Figure 1, but it is also possible to arrange the first rotor 4 and the second rotor 7 in parallel. The orientation of the other parts of the double-acting pulverizer 1 naturally changes depending on the orientation of the rotor assembly 2.

[0032] The first rotor 4 comprises a first plane 5 and first rings 72, 74 having first blades 6 protruding from the first plane 5. The first plane 5 may be oriented horizontally. The first rotor 4 is arranged to rotate around the hub 3.

[0033] The second rotor 7 includes a second plane 8, which may be oriented horizontally. The second rotor 7 is coaxial with the first rotor 4 and includes second rings 71, 73, which are provided with second blades 9 protruding from the second plane 8. The blades 9 have surfaces for grinding the material being processed. The second rotor 7 may be positioned to rotate around the hub 3 in the opposite direction to the first rotor 4, such that the first rings 72, 74 of the first rotor 4 and the second rings 71, 73 of the second rotor 7 mesh. It is also possible for rotors 4 and 7 to rotate in the same direction. The blades 6 of the first rotor 4 and the blades 9 of the second rotor 7 have surfaces for grinding the material being processed.

[0034] The third rotor 30 surrounds the first rotor 4 and the second rotor 7.

[0035] The rotor device 2 includes a supply port 16 that begins on the first frame 20 on the side 21 of the first rotor 4 and opens toward the hub 3 of the rotor device 2. The rotor device 2 also includes a discharge port 17. The discharge port 17 may be a tangential opening on the outer circumference of the first rotor 4 and the second rotor 7, as shown in Figure 2.

[0036] The double-acting impact crusher 1 also includes a first actuator 10 for generating driving force for a first rotor 4, a second actuator 11 for generating driving force for a second rotor 7, and a third actuator 31 for generating driving force for a third rotor 30. The first actuator 10, the second actuator 11, and the third actuator 30 may be directly driven or belt-driven electric motors.

[0037] The side surface 13 of the second rotor 7 has a main tube 12 that extends perpendicular to the second plane 8. The main tube 12 may be supported by a frame 22.

[0038] The first drive shaft 14 is located between the first rotor 4 and the first actuator 10. The first drive shaft 14 may extend vertically. The first drive shaft 14 is supported inside the main tube 12 via bearings. Inside the main tube 12 are the bearing 24 for the first drive shaft 14 and the mechanical seals 23 and 27 for the first drive shaft 14.

[0039] The second drive shaft 15 is located between the second rotor 7 and the first frame 20. The second drive shaft 15 may extend vertically. The second drive shaft 15 is a hollow shaft and is supported by the first frame 20 via bearings, surrounding the feed port 16. There are bearings for the second drive shaft 15. The second drive shaft 15 extends perpendicularly from the second rotor 7 to the second plane 8.

[0040] The third rotor 30 includes a third functional part 34 for receiving the driving force of the third actuator 31. The third functional part 34 may be a gear surface, such as a conical gear surface, which cooperates with the conical gear of the shaft of the third actuator 31. There is a bearing 32 for the third rotor 30 and a mechanical seal 33 for the third rotor 30. The third rotor 30 may rotate in the same direction as or opposite to the first rotor 4 or the second rotor 7. Typically, the two rotors rotate in the same direction and one rotates in the opposite direction.

[0041] Figure 4 shows a double-acting impact pulverizer 1. The double-acting impact pulverizer 1 includes a first actuator 10 for generating driving force for a first rotor 4 and a second rotor 7. The first actuator 10 may be a direct-drive or belt-drive electric motor. The belt may be a toothed belt or a conical belt, but a toothed belt is preferred.

[0042] The first drive shaft 14 is located between the second rotor 7 and the first actuator 10. The first drive shaft 14 may extend vertically. The second rotor 7 includes rings 71 and 73.

[0043] The second drive shaft 15 is located between the first rotor 4 and the first actuator 10. The first rotor 4 includes rings 72 and 74. The second drive shaft 15 may extend vertically. The second drive shaft 15 is a hollow shaft surrounding the feed port 16. The feed port 16 passes through the hollow second drive shaft 15.

[0044] An intermediate shaft is located between the shaft of the first actuator 10 and the first drive shaft 14, and another intermediate shaft is located between the shaft of the first actuator 10 and the second drive shaft 15. Figure 4 shows three intermediate shafts, namely shafts 35, 36, and 37. Each shaft 35, 36, and 37 is provided with a functional part for receiving the driving force of the first actuator 10. The functional part may be a pair of conical gears 38.

[0045] The arrows in Figure 4 indicate the direction of rotation of the conical gears. The first actuator 10 rotates a conical gear 39, which in turn rotates a conical gear 40. The conical gear 40 rotates a shaft 35, which in turn rotates conical gears 41 and 45 located on the shaft 35. The shaft 35 may be vertical. The conical gear 41 rotates a conical gear 42, which in turn rotates a shaft 36 and a conical gear 18. The shaft 36 may be horizontal. The conical gear 18 rotates a conical gear 28 and a first drive shaft 14. The first drive shaft 14 rotates the second rings 71 and 73 of the second rotor 7.

[0046] The conical gear 45 rotates the conical gear 46. The conical gear 46 rotates the shaft 37. The shaft 37 may be horizontal. The conical gear 19 rotates the conical gear 29 and the second drive shaft 15. The second drive shaft 15 rotates the first rings 72 and 74 of the first rotor 4.

[0047] Figure 4 shows a state in which the first drive shaft 14 and the second drive shaft 15 rotate in opposite directions. Figure 5 shows a double-impact type crusher 1 similar to Figure 4, but the first drive shaft 14 and the second drive shaft 15 rotate in the same direction.

[0048] Figure 6 shows a double-acting impact pulverizer 1. The double-acting impact pulverizer 1 includes a first actuator 10 for generating driving force for a second rotor 7. The first actuator 10 may be a direct-drive or belt-drive electric motor. The belt may be a toothed belt or a conical belt, but a toothed belt is preferred.

[0049] The double-acting impact pulverizer includes a second actuator 11 for generating driving force for the first rotor 4. The second actuator 11 may be a direct-drive or belt-drive electric motor. The belt may be a toothed belt or a conical belt, but a toothed belt is preferred.

[0050] The first drive shaft 14 is located between the second rotor 7 and the first actuator 10. The first drive shaft 14 may extend vertically.

[0051] The second drive shaft 15 is located between the first rotor 4 and the second actuator 11. The second drive shaft 15 may extend vertically. The second drive shaft 15 is a hollow shaft surrounding the feed port 16. The second drive shaft 15 extends perpendicularly from the first rotor 4 to the rotor device 2. The second drive shaft 15 may have a larger diameter than the first drive shaft 14. The feed port 16 passes through the hollow second drive shaft 15.

[0052] The shafts of actuators 10 and 11 and the first and second drive shafts 14 and 15 are provided with functional parts for receiving the driving force of the first actuator 10 and the second actuator 11. The functional parts may be a pair of conical gears 38.

[0053] The arrows in Figure 6 indicate the direction of rotation of the conical gears. The first actuator 10 rotates the conical gear 18, which in turn rotates the conical gear 28 located on the first drive shaft 14. The first drive shaft 14 rotates the rings 71 and 73 of the second rotor 7. The second actuator 11 rotates the conical gear 19, which in turn rotates the conical gear 29 located on the second drive shaft 15. The second drive shaft 15 rotates the rings 72 and 74 of the first rotor 4.

[0054] Figure 7 shows a double-impact type pulverizer 1 similar to that in Figure 6, except that the supply port 16 is located inside the first drive shaft 14, i.e., the double-impact type pulverizer 1 is supplied directly below it.

[0055] Figure 8 shows a double-impact type crusher 1 similar to Figure 6, except that it has two supply ports 16, namely one supply port 16 that passes through the hollow second drive shaft 15 and one supply port 16 that passes through the hollow first drive shaft 14.

[0056] Figure 9 shows a double-impact crusher 1 similar to Figure 6, except that the arrangement of the first actuator 10 and the second actuator 11 is different. The first actuator 10 rotates the first drive shaft 14, which rotates the rings 71 and 73. The second actuator 11 rotates the second drive shaft 15, which rotates the rings 72 and 74. The second actuator 11 rotates the cylindrical gear 47, which rotates the cylindrical gear 48. The cylindrical gears form a pair of cylindrical gears 51.

[0057] Figure 10 shows a double-impact crusher 1 having three rotors, namely the first, second, and third rotors 4, 7, and 75. The first actuator 10 rotates a cone gear 18 which rotates cone gears 28, 54. The cone gear 28 rotates a first drive shaft 14 which rotates a ring 71. The cone gear 54 rotates a third drive shaft 56 which rotates a ring 73 of the third rotor 75.

[0058] The second actuator 11 rotates the conical gear 19, which in turn rotates the conical gear 29. The conical gear 29 rotates the second drive shaft 15, which in turn rotates the rings 72 and 74 of the first rotor 4.

[0059] Rings 71 and 73 rotate in opposite directions. The rotational speed and direction of the first rotor 4 are independent of the rotational speed and direction of rings 71 and 73. The double-acting impact crusher 1 is equipped with a feed port 16 through which the second drive shaft 15 passes.

[0060] Figure 11 shows a double-acting impact crusher 1 having three rotors, namely the first, second, and third rotors 4, 7, and 75. The first actuator 10 rotates a conical gear 18, which in turn rotates a conical gear 28. The conical gear 28 rotates a first drive shaft 14, which in turn rotates a ring 71 belonging to the second rotor 7.

[0061] The second actuator 11 rotates the conical gear 19, which in turn rotates the conical gear 29. The conical gear 29 rotates the second drive shaft 15, which in turn rotates the rings of the first rotor 4, for example, rings 72 and 74.

[0062] The third actuator 31 rotates a conical gear 63 which rotates a conical gear 60. The conical gear 60 rotates a third drive shaft 56 which rotates a ring 73 belonging to the third rotor 75.

[0063] The rotational speeds and directions of the first, second, and third actuators 10, 11, and 56 are independent of each other. The supply port 16 passes through the second drive shaft 15.

[0064] Figure 12 shows a double-acting impact crusher 1 having four rotors, namely the first, second, third, and fourth rotors 4, 7, 75, and 76. The first actuator 10 rotates a conical gear 18, which in turn rotates a conical gear 28. The conical gear 28 rotates a first drive shaft 14, which in turn rotates a ring 71 of the second rotor 7.

[0065] The second actuator 11 rotates the conical gear 19, which in turn rotates the conical gear 29. The conical gear 29 rotates the second drive shaft 15, which in turn rotates the ring of the first rotor 4, for example, ring 72.

[0066] The third actuator 31 rotates a conical gear 63 which in turn rotates a conical gear 60. The conical gear 60 rotates a third drive shaft 56 which in turn rotates a ring 73 of a third rotor 75.

[0067] The fourth actuator 64 rotates a conical gear 65, which in turn rotates a conical gear 66. The conical gear 66 rotates the fourth drive shaft 67. The fourth drive shaft 67 rotates the ring 74 of the fourth actuator 64.

[0068] The rotational speeds and directions of the first, second, third, and fourth actuators 10, 11, 56, and 67 are independent of each other. The supply port 16 passes through the second drive shaft 15.

[0069] Figures 13 and 14 show a double-acting impact crusher 1 similar to Figure 6, except that the first rotor 4 and the second rotor 7 are eccentric rather than concentric. The rings of the first rotor 4, namely rings 72 and 74, are slightly moved rather than concentric with the hub 3. Rings 71 and 73 are also movable. Figure 13 shows one example of how the power transmission device associated with the eccentric rings is arranged, but other layouts shown in the above drawings are also possible.

[0070] Figure 15 shows a double-acting impact grinder 1 supplied through a feed port 16 located directly above the rotor device 2. Therefore, the double-acting impact grinder 1 in Figure 15 is not supplied from any axis. Figure 15 shows one example of how to arrange the power transmission device associated with the feed port 16 in Figure 15, but other layouts shown in the above drawings are also possible.

[0071] Figure 16 shows a double-acting impact pulverizer 1 in which the rotor device 2 discharges into a container 77. Figure 16 shows one example of how the power transmission device associated with the container 77 in Figure 16 is arranged, but other layouts shown in the above drawings are also possible.

[0072] Figure 17 shows a double-acting impact crusher 1 similar to Figure 6, except that the first rotor 4 has only one ring 72 and the second rotor 7 has only one ring 71.

[0073] Figure 18 shows a double-acting impact pulverizer 1 similar to Figure 12, except that the rotor device 2 has more rings. The double-acting impact pulverizer 1 comprises four rotors, namely the first, second, third, and fourth rotors 4, 7, 75, and 76. The first actuator 10 rotates a conical gear 18, which in turn rotates a conical gear 28. The conical gear 28 rotates a first drive shaft 14, which in turn rotates the ring 71 of the second rotor 7.

[0074] The second actuator 11 rotates the conical gear 19, which in turn rotates the conical gear 29. The conical gear 29 rotates the second drive shaft 15, which in turn rotates the ring of the first rotor 4, for example, ring 72.

[0075] The third actuator 31 rotates a conical gear 63 which in turn rotates a conical gear 60. The conical gear 60 rotates a third drive shaft 56 which in turn rotates rings 73 and 79 of the third rotor 75.

[0076] The fourth actuator 64 rotates a conical gear 65, which in turn rotates a conical gear 66. The conical gear 66 rotates the fourth drive shaft 67. The fourth drive shaft 67 rotates the rings 74 and 78 of the fourth actuator 76.

[0077] The rotational speeds and directions of the first, second, third, and fourth rotors 4, 7, 75, and 76 are independent of each other. The feed port 16 passes through the second drive shaft 15.

[0078] Figure 19 shows a double-acting impact type crusher 1 similar to Figure 6, except that the supply port 16 is located on the side, i.e., the supply port 16 is at an angle.

[0079] The double-acting impact pulverizer 1 shown in Figure 19 is suitable for ultra-high-speed processing. The double-acting impact pulverizer 1 includes a first actuator 10 for generating driving force to the second rotor 7. The first actuator 10 may be an electric motor that drives the first drive shaft 14.

[0080] The double-acting impact crusher includes a second actuator 11 for generating driving force for the first rotor 4. The second actuator 11 may be an electric motor that drives the second drive shaft 15.

[0081] The first drive shaft 14 is solid, that is, not hollow, and is located between the second rotor 7 and the first actuator 10. The first drive shaft 14 extends vertically.

[0082] The second drive shaft 15 is solid, that is, not hollow, and is located between the first rotor 4 and the second actuator 11. The second drive shaft 15 extends vertically. The second drive shaft 15 extends perpendicularly from the first rotor 4 to the rotor device 2.

[0083] The shafts of actuators 10 and 11 and the first and second drive shafts 14 and 15 are provided with functional parts that receive the driving force of the first actuator 10 and the second actuator 11. The functional parts directly transmit the driving force from one shaft to another. The functional parts may be a pair of conical gears 38, or a similar pair of cylindrical gears 51 as shown in Figure 9. The features described above with respect to Figure 9 may be applied in relation to the first and second drive shafts 14 and 15, or in relation to only one of the drive shafts 14 and 15.

[0084] Possible applications for transmitting driving force in relation to high speed are shown in Figures 4, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, and 18, provided that the drive shafts 14 and 15 are solid, i.e., the supply port 16 does not penetrate one of the drive shafts 14 or 15.

[0085] Figure 19 shows that the first actuator 10 rotates a cone gear 18 which rotates a cone gear 28 located on the first drive shaft 14. The first drive shaft 14 rotates the rings 71 and 73 of the second rotor 7. The second actuator 11 rotates a cone gear 19 which rotates a cone gear 29 located on the second drive shaft 15. The second drive shaft 15 rotates the rings 72 and 74 of the first rotor 4.

[0086] Figure 20 shows a double-acting impact pulverizer 1 similar to Figure 6, except that both rotors 4, 7 have only one ring 71, 72 and the feed port 16 is another opening on the outer circumference of the rotor device 2. An advantage of the double-acting impact pulverizer 1 in Figure 20 is that it can achieve higher peripheral speeds. The double-acting impact pulverizer 1 in Figure 20 is suitable for high-speed use because the drive shafts 14, 15 are solid and the feed port 16 is on the outside of the shafts, and the driving force is transmitted directly from one shaft to the other.

[0087] The double-acting impact pulverizer 1 in Figure 20 may have multiple feed ports 16, the feed ports may open from above and / or below the rotor device. Multiple materials may be supplied through one feed port so that each material is supplied without being mixed until it enters the rotor device. A gaseous material such as steam may also be supplied through at least one of the openings.

[0088] Figure 21 shows a perspective view of the double-acting impact type crusher 1 shown in Figure 20.

[0089] Figure 22 shows a double-acting impact type crusher 1. The double-acting impact type crusher 1 includes a first actuator 10 for generating driving force for a second rotor 7. The first actuator 10 may be a directly driven electric motor.

[0090] The double-acting impact crusher includes a second actuator 11 for generating driving force for the first rotor 4. The second actuator 11 may be a directly driven electric motor.

[0091] The first drive shaft 14 is located between the second rotor 7 and the first actuator 10. The first drive shaft 14 may extend vertically.

[0092] The second drive shaft 15 is located between the first rotor 4 and the second actuator 11. The second drive shaft 15 may extend vertically. The second drive shaft 15 extends perpendicularly from the first rotor 4 to the rotor device 2.

[0093] The shafts of actuators 10 and 11 and the first and second drive shafts 14 and 15 are provided with functional parts that receive the driving force of the first actuator 10 and the second actuator 11. The functional parts may be a pair of conical gears 38.

[0094] The first actuator 10 rotates a cone gear 18 which rotates a cone gear 28 located on the first drive shaft 14. The first drive shaft 14 rotates the rings 71 and 73 of the second rotor 7. The second actuator 11 rotates a cone gear 19 which rotates a cone gear 29 located on the second drive shaft 15. The second drive shaft 15 rotates the ring 72 of the first rotor 4.

[0095] The rotor device 2 comprises a plane 5 of the first rotor 4. The plane 5 has a hub 3. The plane 5 is not solid and has openings 44. The hub 3 and the ring 72 of the first rotor 4 may be connected by radially extending bars 43 or the like. Material may be supplied through a supply port 16 so that it flows into the rotor device 2 through one or more openings 44 in the plane 5 of the rotor 4.

[0096] As technology advances, it will be apparent to those skilled in the art that the concept of the present invention can be implemented in various ways. The present invention and its embodiments are not limited to the examples described above and can be modified within the scope of the claims.

Claims

1. A double-acting impact type crusher (1), A rotor device (2) having a first side surface (21) and a second side surface (13) opposite to the first side surface (21), wherein the rotor device comprises at least one first ring (72, 74, 78) on the first side surface (21) of the rotor device (2) and at least one second ring (71, 73, 79) on the second side surface (13) of the rotor device (2), wherein the first ring is provided with a first blade (6) and the second ring is provided with a second blade (9), and the first ring and the second ring mesh together. A first drive shaft (14) extending outward from the second side surface (13) of the rotor device (2), the first drive shaft (14) cooperating with at least one ring of the rotor device (2), A second drive shaft (15) extending outward from the first side surface (21) of the rotor device (2), the second drive shaft (15) cooperating with at least one other ring of the rotor device (2), At least one actuator cooperating with at least one of the drive shafts (14, 15), Supply port (16) and Outlet (17) and Equipped with, A double-acting impact type crusher, characterized in that the rotor device (2) is configured to be driven from both sides (13, 21) of the rotor device (2).

2. The rotor device comprises at least two first rings (72, 74, 78) on the first side surface (21) of the rotor device (2) and at least two second rings (71, 73, 79) on the second side surface (13) of the rotor device (2), wherein the first rings and the second rings are arranged alternately and interlocked with each other, as described in claim 1.

3. The double-acting impact crusher according to claim 2, characterized in that the first drive shaft (14), driven by the first actuator (10), cooperates with the rings (72, 74) on the first side surface (21) of the rotor device (2), and the second drive shaft (15), driven by the second actuator (11), cooperates with the rings (71, 73) on the second side surface (13) of the rotor device (2).

4. The double-acting impact crusher according to claim 2, characterized in that the first drive shaft (14), driven by the first actuator (10), cooperates with the rings (71, 73) on the second side surface (13) of the rotor device (2), and the second drive shaft (15), driven by the first actuator (10), cooperates with the rings (72, 74) on the first side surface (21) of the rotor device (2).

5. The double-acting impact crusher according to claim 2, characterized in that the first drive shaft (14), driven by the first actuator (10), cooperates with the rings (71, 73) on the second side surface (13) of the rotor device (2), and the second drive shaft (15), driven by the second actuator (11), cooperates with the rings (72, 74) on the first side surface (21) of the rotor device (2).

6. The double-acting impact crusher according to claim 2, characterized in that the first drive shaft (14), driven by the first actuator (10), cooperates with one ring (71) on the second side surface (13) of the rotor device (2); the second drive shaft (15), driven by the second actuator (11), cooperates with the rings (72, 74) on the first side surface (21) of the rotor device (2); and the third drive shaft (56), driven by the first actuator (10), cooperates with one ring (73) on the second side surface (13) of the rotor device (2).

7. The double-acting impact crusher according to claim 2, characterized in that the first drive shaft (14), driven by the first actuator (10), cooperates with one ring (71) on the second side surface (13) of the rotor device (2); the second drive shaft (15), driven by the second actuator (11), cooperates with the rings (72, 74) on the first side surface (21) of the rotor device (2); and the third drive shaft (56), driven by the third actuator (31), cooperates with one ring (73) on the second side surface (13) of the rotor device (2).

8. The double-acting impact crusher according to claim 2, characterized in that the first drive shaft (14), driven by the first actuator (10), cooperates with one ring (71) on the second side surface (13) of the rotor device (2); the second drive shaft (15), driven by the second actuator (11), cooperates with one ring (72) on the first side surface (21) of the rotor device (2); the third drive shaft (56), driven by the third actuator (31), cooperates with one ring (73) on the second side surface (13) of the rotor device (2); and the fourth drive shaft (67), driven by the fourth actuator (64), cooperates with one ring (74) on the first side surface (21) of the rotor device (2).

9. The double-acting impact crusher according to claim 8, characterized in that the third drive shaft (56) cooperates with a plurality of rings on the first side surface (21) of the rotor device (2).

10. The double-acting impact crusher according to claim 8 or 9, characterized in that the fourth drive shaft (67) cooperates with a plurality of rings on the second side surface (13) of the rotor device (2).

11. The double-acting impact pulverizer according to any one of claims 1 to 10, characterized in that the supply port (16) extends through the first drive shaft (14) and / or the second drive shaft (15), or is another opening.

12. The double-acting impact crusher according to any one of claims 1 to 11, characterized in that the rings (71, 72, 73, 74, 78, 79, 81) are concentric.

13. The double-acting impact crusher according to any one of claims 1 to 11, characterized in that at least one of the rings (71, 72, 73, 74, 78, 79, 81) is eccentric.

14. The double-acting impact crusher according to any one of claims 1 to 13, characterized in that the discharge port (17) is a tangential opening on the outer circumference of the rotor device (2).

15. The double-acting impact crusher according to any one of claims 1 to 13, characterized in that the discharge port (17) passes around the outer circumference of the rotor device (2) so that the rotor device (2) is configured to discharge directly into the container (77).

16. The double-acting impact crusher according to claim 1, characterized in that the first side surface (21) is on the upper side and the second side surface (13) is on the lower side.

17. The double-acting impact type pulverizer according to claim 1, characterized in that it comprises a first actuator (10) having a shaft and a second actuator (11) having a shaft.

18. The double-acting impact crusher according to claim 17, characterized in that, via the functional part of the shaft, the shaft of the first actuator (10) is in direct contact with the first drive shaft (14), and the shaft of the second actuator (11) is in direct contact with the second drive shaft (15).

19. The double-acting impact type crusher according to claim 18, characterized in that the functional part is a gear.

20. The double-acting impact crusher according to claim 18 or 19, characterized in that the first and second drive shafts (14, 15) are solid.

21. The double-acting impact crusher according to any one of claims 16 to 20, characterized in that the supply port (16) is located outside the first and second drive shafts (14, 15).

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