Continuous dry quenching device for coal pyrolysis

Abstract

The invention relates to the field of dry quenching, and mainly discloses a coal pyrolysis continuous dry quenching device which comprises a bottom frame, a discharging barrel, a cooling section, a blocking section and a dry quenching section, a pre-storage barrel is fixedly mounted at the top of the dry quenching section, a top cover is connected to the top of the pre-storage barrel, a coke loading opening is formed in the top end of the top cover, and an exhaust pipe is further mounted on the side wall of the pre-storage barrel. The piston barrel is arranged to provide a buffer area for inert gas for dry quenching, after the inert gas enters the piston barrel, the pressure intensity of the inert gas can be changed through vertical movement of a piston head in the piston barrel, and then the inert gas is guided and blocked by matching the change of the inner pressure intensity and the outer pressure intensity with a sealing plate arranged in the one-way assembly; and meanwhile, dust in the first fixed barrel and the pre-storage barrel can be prevented from entering the piston barrel, and a guarantee is provided for subsequent continuous dry quenching.

Description

Technical Field

[0001] The invention relates to the field of dry coke quenching, and in particular to a coal pyrolysis continuous dry coke quenching device. Background Art

[0002] Compared with wet quenching, dry quenching refers to a coke quenching process that uses inert gas to cool down red coke. During the dry quenching process, red coke is loaded from the top of the dry quenching furnace, and the low-temperature inert gas is blown into the red coke layer in the cooling section of the dry quenching furnace by the circulating fan to absorb the sensible heat of the red coke. The cooled coke is discharged from the bottom of the dry quenching furnace, and the high-temperature inert gas coming out of the annular flue of the dry quenching furnace flows through the dry quenching boiler for heat exchange. The boiler generates steam, and the cooled inert gas is blown back into the dry quenching furnace by the circulating fan. The inert gas is circulated in a closed system.

[0003] Generally speaking, dry coke quenching is a process that uses inert gas to remove the heat in the red coke and transfer this part of the heat to the boiler. The filling of inert gas into the traditional dry quenching furnace is generally controlled by a solenoid valve, and the inert gas is often directly filled into the dry quenching furnace through a controller. This gas replenishment method makes the inert gas stay in the furnace body for a relatively short time, and the heat brought out is relatively small. Therefore, inert gas can only be continuously filled, and the red coke will stick together during the cooling process. The efficiency of subsequent extraction from the furnace body is relatively slow, and manual processing of the furnace outlet is often required.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0005] The object of the present invention is to provide a coal pyrolysis continuous dry quenching device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A coal pyrolysis continuous dry quenching device comprises a base frame, a discharging barrel is fixedly installed on the top of the base frame, the top of the discharging barrel is connected to a cooling section, the top of the cooling section is fixedly installed with a blocking section, the top of the blocking section is connected to a dry quenching section, a pre-storage cylinder is fixedly installed on the top of the dry quenching section, the top of the pre-storage cylinder is connected to a top cover, the top end of the top cover is provided with a coke loading port, and an exhaust pipe is also installed on the side wall of the pre-storage cylinder; the dry quenching section comprises a first fixed cylinder, an extension frame is relatively fixedly installed on the outer wall of the first fixed cylinder, an air supply mechanism is installed on the extension frame, a through hole is opened at the bottom of the side wall of the first fixed cylinder, and a connecting pipe is provided on the outside of the first fixed cylinder; the air supply mechanism comprises a piston cylinder, a piston head is slidably provided inside the piston cylinder, a piston rod is fixedly installed on the bottom of the piston head, and the outside of the piston cylinder close to the first fixed cylinder is connected to an outlet The vent pipe has a bottom end connected to the connecting pipe, the piston cylinder is connected to an air inlet pipe on the outside of a side away from the first fixed cylinder, a side wall of the piston cylinder close to the air outlet pipe is provided with a first air outlet and a second air outlet, a top end of the air outlet pipe is connected to the first air outlet, a side wall of the air outlet pipe facing the piston cylinder is provided with an air outlet extension port, the air outlet extension port is connected to the second air outlet, a side wall of the piston cylinder close to the air inlet pipe is provided with a first air inlet port and a second air inlet port, the bottom end of the air inlet pipe is connected to the second air inlet port, a side wall of the air inlet pipe close to the piston cylinder is provided with an air inlet extension port, the air inlet extension port is connected to the first air inlet, the first air outlet is opposite to the first air inlet, the second air outlet is opposite to the second air inlet, and a one-way component is installed in the first air outlet, the second air outlet, the first air inlet and the second air inlet.

[0008] Furthermore, the one-way component includes an annular plate, a hinged seat is fixedly installed on one end face of the annular plate facing the flow direction of the inert gas, a sealing plate is installed on the hinged seat, a sealing plug is fixedly installed on one end face of the sealing plate facing the annular plate, the diameter of the sealing plate is larger than the inner diameter of the annular plate, the sealing plug is clearance-matched with the inner wall of the annular plate, and a connecting head is integrally provided on the end portion of the piston rod away from the piston head.

[0009] Furthermore, the cooling section includes a second fixed cylinder, which is fixedly installed on the top end of the discharge barrel, and a circular plate is fixedly installed on the inner top of the second fixed cylinder, and a plurality of first blanking holes are opened on the circular plate. A vertical axis is rotatably installed on the bottom center of the circular plate, and a rotating plate is provided on the top of the second fixed cylinder, and a mounting hole is opened in the center of the rotating plate. The rotating plate is fixedly installed on the vertical axis through the mounting hole, and a guide plate is also fixedly installed on the outer side of the top of the rotating plate, and a plurality of second blanking holes are also opened on the rotating plate, and the aperture of the second blanking hole is smaller than that of the first blanking hole.

[0010] Furthermore, an extension cylinder is integrally provided on the outer side of the bottom of the rotating plate, and the extension cylinder is coaxially arranged inside the second fixed cylinder, and a sealed bearing is symmetrically installed on the second fixed cylinder along the vertical axis, and a rotating shaft is rotatably installed in the sealed bearing, and an arc plate is fixedly installed on one end of the rotating shaft located inside the second fixed cylinder, and the arc plate is arranged between the second fixed cylinder and the extension cylinder, and guide wheels are rotatably installed at both ends of the arc plate on one side of the extension cylinder, and the top of the guide wheel is arranged tightly against the bottom of the extension cylinder, and an extension shaft is fixedly installed on one end of the rotating shaft away from the arc plate, and a rotating wheel is fixedly installed on one end of the extension shaft away from the rotating shaft, and a first hinge shaft is installed on the side of one end surface of the rotating wheel away from the extension shaft, and a second hinge shaft is installed on the connecting head, and the first hinge shaft and the second hinge shaft located on the same side are connected by a traction rod.

[0011] Furthermore, a notch is provided at the bottom of the extension tube, and a hanging frame arranged close to the notch is fixedly installed on the outer side of the bottom of the rotating plate. A triangular plate is integrally provided on the bottom of the hanging frame facing the notch, and the triangular plate is arranged inside the notch. The outer wall of the triangular plate and the inner wall of the notch form a guide seam, and the bottom of the triangular plate protrudes from the bottom of the extension tube.

[0012] Furthermore, a buffer groove is provided at the top of the notch, a sealing sleeve is installed through the side wall of the second fixed cylinder, and a dust exhaust pipe is fixedly installed at the end of the sealing sleeve located outside the second fixed cylinder.

[0013] Furthermore, the four corners of the bottom of the base frame are fixedly installed with supporting feet, a conical cylinder is coaxially installed inside the discharge barrel, a driving motor is installed inside the conical cylinder, the output shaft of the driving motor is fixedly connected to the vertical axis, a discharge outlet is provided at the bottom of the side wall of the discharge barrel, a cover plate is hingedly installed on the outer side of the top of the discharge outlet, a discharge rack arranged near the discharge outlet is also fixedly installed on the base frame, and an inclined discharge trough is provided on the top of the discharge rack.

[0014] Furthermore, the blocking section includes a third fixed cylinder, which is arranged between the first fixed cylinder and the second fixed cylinder. A fixed frame is fixedly installed on the outer wall of the third fixed cylinder, a fixed block is fixedly installed on one end of the fixed frame away from the third fixed cylinder, a guide sleeve is fixedly installed in the fixed block, and the piston rod passes through the guide sleeve.

[0015] Furthermore, a blocking member is provided inside the third fixed cylinder, and assembly frames are symmetrically provided in pairs on the outer wall of the third fixed cylinder. A sealing tube arranged toward the assembly frame is also fixedly installed on the outer wall of the third fixed cylinder, and a bearing seat arranged opposite to the sealing tube is installed in the assembly frame. The blocking member includes a first baffle plate arranged in the middle part of the third fixed cylinder, a second baffle plate is provided on the side of the first baffle plate away from the center of the third fixed cylinder, a first installation shaft is fixedly installed on both end portions of the first baffle plate, and a second installation shaft is fixedly installed on both end portions of the second baffle plate, and ends of the first installation shaft and the second installation shaft both pass through the third fixed cylinder and are connected to corresponding bearing seats.

[0016] Furthermore, an auxiliary plate is fixedly mounted on the inner wall of the third fixed cylinder, and the auxiliary plate is arranged at the end connection of the first baffle plate and the second baffle plate. A crank is fixedly mounted on the ends of the first installation shaft and the second installation shaft located on the same side of the outside of the third fixed cylinder, and the ends of the crank away from the first installation shaft and the second installation shaft are connected through a connecting frame.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The piston cylinder of the present invention can provide a buffer zone for the inert gas used for dry coke quenching, and after the inert gas enters the piston cylinder, its pressure can be changed by the up and down movement of the piston head inside the piston cylinder, and then the inert gas can be guided and blocked by the change of the internal and external pressures in conjunction with the sealing plate provided in the one-way component, thereby avoiding the backflow of the inert gas, and at the same time, dust in the first fixed cylinder and the pre-stored cylinder can be prevented from entering the piston cylinder, thereby providing a guarantee for subsequent continuous dry coke quenching.

[0019] The present invention provides a rotating plate and opens a second material-dropping hole thereon, so that the cooled red coke can be dropped in cooperation with the first material-dropping hole on the circular plate, and the rotating plate can drive the second material-dropping hole to rotate, which can not only crush the cooled red coke, but also increase the further cooling of the red coke. The rotation of the rotating plate can also drive the guide wheel to move through the extension cylinder and the triangular plate provided at the bottom thereof, so as to realize the rotation adjustment of the rotating shaft, and finally the traction rod can be driven to move by the driving rotating wheel, so as to realize the reciprocating adjustment of the piston rod, and provide power for filling the inert gas into the first fixed cylinder in the early stage.

[0020] The first baffle plate and the second baffle plate provided in the present invention can be flipped and adjusted by the corresponding first installation shaft and the second installation shaft, so as to block the upper and lower areas inside the third fixed cylinder, and can ensure that the red coke will not fall into the discharge barrel during the early stage of dry quenching. After the dry quenching is completed, the red coke in the first fixed cylinder and the pre-storage cylinder can be smoothly dropped down, and then fall into the discharge barrel for collection. Moreover, all the first installation shafts and the second installation shafts can be synchronously rotated and adjusted only by adjusting the connecting frame, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 2 is a schematic structural diagram of a coal pyrolysis continuous dry quenching device according to an embodiment of the present invention;

[0023] Figure 2 It is a schematic structural diagram of a pre-storage cylinder in a continuous dry quenching device for coal pyrolysis according to an embodiment of the present invention;

[0024] Figure 3 It is a schematic structural diagram of a dry quenching section in a continuous dry quenching device for coal pyrolysis according to an embodiment of the present invention;

[0025] Figure 4 It is a structural schematic diagram of a gas supply mechanism in a coal pyrolysis continuous dry quenching device according to an embodiment of the present invention;

[0026] Figure 5 is a cross-sectional view of a gas supply mechanism in a coal pyrolysis continuous dry quenching device according to an embodiment of the present invention;

[0027] Figure 6 2 is a schematic structural diagram of a one-way component in a continuous dry quenching device for coal pyrolysis according to an embodiment of the present invention;

[0028] Figure 7 2 is a schematic diagram of the structure of a piston rod in a coal pyrolysis continuous dry quenching device according to an embodiment of the present invention;

[0029] Figure 8 It is a schematic structural diagram of a cooling section in a continuous dry quenching device for coal pyrolysis according to an embodiment of the present invention;

[0030] Fig. 9 2 is a schematic diagram of the bottom structure of a second fixed cylinder in a coal pyrolysis continuous dry quenching device according to an embodiment of the present invention;

[0031] Fig.10 2 is a schematic structural diagram of a transfer plate in a continuous dry quenching device for coal pyrolysis according to an embodiment of the present invention;

[0032] Fig.11 It is a schematic structural diagram of an extension tube in a continuous dry quenching device for coal pyrolysis according to an embodiment of the present invention;

[0033] Fig.12 It is a schematic structural diagram of a rotating shaft in a continuous dry quenching device for coal pyrolysis according to an embodiment of the present invention;

[0034] Fig.13 It is a schematic structural diagram of a discharge barrel in a continuous dry quenching device for coal pyrolysis according to an embodiment of the present invention;

[0035] Fig.14 It is a schematic structural diagram of a barrier section in a continuous dry quenching device for coal pyrolysis according to an embodiment of the present invention;

[0036] Fig.15 2 is a schematic structural diagram of a third fixed cylinder in a continuous dry quenching device for coal pyrolysis according to an embodiment of the present invention;

[0037] Fig.16 2 is a schematic structural diagram of a first baffle in a coal pyrolysis continuous dry quenching device according to an embodiment of the present invention;

[0038] Fig.17 2 is a schematic structural diagram of a second baffle in a coal pyrolysis continuous dry quenching device according to an embodiment of the present invention;

[0039] Fig.18 This is an assembly diagram of a crank and a connecting frame in a coal pyrolysis continuous dry quenching device according to an embodiment of the present invention;

[0040] Fig.19 is a schematic diagram of a heat transfer process according to an embodiment of the present invention;

[0041] Fig. 20 is a schematic structural diagram of a coke removal box in a heat transfer process according to an embodiment of the present invention;

[0042] Fig.21 is a schematic structural diagram of a flash tank in a heat transfer process according to an embodiment of the present invention;

[0043] Fig. 22 It is a principle diagram of flash evaporation of high-temperature water in a flash tank in a heat transfer process according to an embodiment of the present invention.

[0044] Reference numerals:

[0045] 1. Base frame; 2. Discharging barrel; 3. Cooling section; 4. Barrier section; 5. Dry quenching section; 6. Pre-storage cylinder; 7. Top cover; 8. Coke loading port; 9. Exhaust pipe; 10. First fixed cylinder; 11. Extension frame; 12. Air supply mechanism; 13. Through hole; 14. Connecting pipe; 15. Piston cylinder; 16. Air outlet pipe; 17. Air inlet pipe; 18. First air outlet; 19. Second air outlet; 20. First air inlet ; 21, second air inlet; 22, air outlet extension; 23, air inlet extension; 24, one-way assembly; 25, annular plate; 26, piston head; 27, piston rod; 28, hinged seat; 29, sealing plate; 30, sealing plug; 31, connector; 32, second fixed cylinder; 33, circular plate; 34, first blanking hole; 35, vertical axis; 36, rotating plate; 361, guide plate; 37, mounting hole; 38. Extension tube; 39. Second blanking hole; 40. Sealed bearing; 41. Rotating shaft; 42. Arc plate; 43. Guide wheel; 44. Extension shaft; 45. Rotating wheel; 46. Drawbar; 47. First hinge shaft; 48. Second hinge shaft; 49. Notch; 50. Lifting frame; 51. Triangular plate; 52. Buffer groove; 53. Sealing sleeve; 54. Dust exhaust pipe; 55. Support foot; 56. Conical tube; 5 7. discharge outlet; 58. cover plate; 59. discharge rack; 60. discharge trough; 61. third fixed cylinder; 62. fixed rack; 63. fixed block; 64. guide sleeve; 65. barrier; 66. assembly rack; 67. sealing tube; 68. bearing seat; 69. first baffle plate; 70. first mounting shaft; 71. second baffle plate; 72. second mounting shaft; 73. auxiliary plate; 74. crank; 75. connecting rack. DETAILED DESCRIPTION

[0046] Below, the invention is further described in conjunction with the accompanying drawings and specific embodiments:

[0047] Example 1: Please refer to Figure 1-Figure 2A coal pyrolysis continuous dry quenching device according to an embodiment of the present invention comprises a base frame 1, a discharging barrel 2 is fixedly mounted on the top of the base frame 1, a cooling section 3 is connected to the top of the discharging barrel 2, a blocking section 4 is fixedly mounted on the top of the cooling section 3, a dry quenching section 5 is connected to the top of the blocking section 4, a pre-storage cylinder 6 is fixedly mounted on the top of the dry quenching section 5, a top cover 7 is connected to the top of the pre-storage cylinder 6, a coke loading port 8 is provided at the top end of the top cover 7, an exhaust pipe 9 is also installed on the side wall of the pre-storage cylinder 6, and the exhaust pipe 9 is communicated with the inside of the pre-storage cylinder 6. The high-temperature red coke is sent to the top of the top cover 7 by the coke loading device, and is sent to the inside of the top cover 7 through the coke loading port 8. The red coke will begin to enter the pre-storage tube 6 and the dry quenching section 5, and will be temporarily blocked by the barrier section 4. At this time, inert gas is filled into the dry quenching section 5 and the coke loading port 8 is closed at the same time. The inert gas will contact the red coke and take away the heat. Finally, the heated gas will enter the exhaust pipe 9. The exhaust pipe 9 is connected to the external dust removal device and sent to the boiler room, which can provide effective heat energy for the boiler room. After the red coke is dry quenched, the cooled red coke can be dropped into the discharge barrel 2 by adjusting the barrier section 4, and finally collected uniformly.

[0048] See also Figure 3-Figure 7 The dry quenching section 5 includes a first fixed cylinder 10, the top of the first fixed cylinder 10 is fixedly connected to the bottom of the pre-storage cylinder 6, an extension frame 11 is relatively fixedly installed on the outer wall of the first fixed cylinder 10, and a gas replenishing mechanism 12 is installed on the extension frame 11. A through hole 13 is opened at the bottom of the side wall of the first fixed cylinder 10, and a connecting pipe 14 is provided outside the first fixed cylinder 10. One end of the connecting pipe 14 is connected to the through hole 13, and the other end of the connecting pipe 14 is connected to the gas outlet end of the gas replenishing mechanism 12. The inert gas is replenished into the connecting pipe 14 by the gas replenishing mechanism 12, and the inert gas can enter the first fixed cylinder 10 through the through hole 13, so as to contact with the red coke.

[0049] The air replenishing mechanism 12 includes a piston cylinder 15, the interior of the piston cylinder 15 is slidably provided with a piston head 26, the bottom of the piston head 26 is fixedly installed with a piston rod 27, the bottom of the piston rod 27 is arranged to pass through the piston cylinder 15, and the piston rod 27 is sealed and slidably connected to the bottom end of the piston cylinder 15, the piston cylinder 15 is connected to the outside of the side close to the first fixed cylinder 10 with an air outlet pipe 16, the bottom end of the air outlet pipe 16 is connected to the connecting pipe 14, the piston cylinder 15 is connected to the outside of the side away from the first fixed cylinder 10 with an air inlet pipe 17, the top end of the air inlet pipe 17 is connected to the inert gas storage tank, the side wall of the piston cylinder 15 close to the air outlet pipe 16 is provided with a first air outlet 18 and a second air outlet 19, the top end of the air outlet pipe 16 is connected to the first air outlet The air outlet pipe 16 is connected to the piston cylinder 15, and an air outlet extension port 22 is provided on a side wall thereof facing the piston cylinder 15, and the air outlet extension port 22 is connected to the second air outlet port 19; a first air inlet port 20 and a second air inlet port 21 are provided on a side wall of the piston cylinder 15 close to the air inlet pipe 17, and the bottom end of the air inlet pipe 17 is connected to the second air inlet port 21; and an air inlet extension port 23 is provided on a side wall of the air inlet pipe 17 close to the piston cylinder 15, and the air inlet extension port 23 is connected to the first air inlet port 20; the first air outlet 18 is arranged opposite to the first air inlet port 20, and the second air outlet 19 is arranged opposite to the second air inlet port 21; and a one-way component 24 is installed in the first air outlet 18, the second air outlet 19, the first air inlet 20, and the second air inlet 21.

[0050] The piston cylinder 15 can be used as a buffer space to provide a temporary storage area for inert gas. When the piston rod 27 is pulled up and down by external force, the piston rod 27 will drive the piston head 26 to move back and forth up and down in the piston cylinder 15. When the piston head 26 moves upward, the inert gas in the upper area of ​​the piston cylinder 15 can be delivered through the first outlet 18, and when the piston head 26 moves downward, the inert gas in the lower area of ​​the piston cylinder 15 can be delivered through the second outlet 19.

[0051] The one-way component 24 includes an annular plate 25, on one end face of the annular plate 25 facing the flow direction of the inert gas, a hinged seat 28 is fixedly installed, a sealing plate 29 is installed on the hinged seat 28, and a sealing plug 30 is fixedly installed on one end face of the sealing plate 29 facing the annular plate 25. The diameter of the sealing plate 29 is larger than the inner diameter of the annular plate 25, and the sealing plug 30 is gap-matched with the inner wall of the annular plate 25.

[0052] When the piston head 26 moves upward, the upper area of ​​the piston cylinder 15 is squeezed by the piston head 26 and the pressure increases. The sealing plate 29 installed in the first air outlet 18 is squeezed by the inert gas and rotates around the hinge seat 28, so that the inert gas can enter the air outlet pipe 16 through the first air outlet 18. At the same time, the sealing plate 29 installed in the first air inlet 20 is squeezed by the inert gas in the upper area of ​​the piston cylinder 15 and is tightly attached to the annular plate 25, thereby preventing the inert gas from flowing back into the air inlet pipe 17 through the first air inlet 20. At this time, the lower area of ​​the piston cylinder 15 is compressed by the inert gas. The pressure in the lower area will change in the opposite direction. The sealing plate 29 located in the second air outlet 19 will be squeezed by the gas in the air outlet pipe 16 and pressed against the annular plate 25, so that the gas in the air outlet pipe 16 cannot flow back into the piston cylinder 15 through the second air outlet 19. At the same time, the sealing plate 29 located in the second air inlet 21 will be opened by the impact of the gas in the air inlet pipe 17, so that the bottom area of ​​the piston cylinder 15 can be filled with inert gas. When the piston head 26 moves downward, the situation is just the opposite. The upper area begins to be filled with inert gas, and the lower area begins to exhaust.

[0053] The end of the piston rod 27 away from the piston head 26 is integrally provided with a connector 31, and the connector 31 is connected to the outside of the cooling section 3. The power of the cooling section 3 is used to adjust the up and down movement of the piston rod 27, which can save an additional power device.

[0054] Through the above scheme of the present invention, the piston cylinder 15 is provided to provide a buffer zone for the inert gas used for dry coke quenching, and after the inert gas enters the piston cylinder 15, its pressure can be changed by the up and down movement of the piston head 26 inside the piston cylinder 15, and then the inert gas is guided and blocked by the change of the internal and external pressures in conjunction with the sealing plate 29 provided in the one-way component 24, thereby avoiding the backflow of the inert gas, and at the same time, it can also prevent the dust in the first fixed cylinder 10 and the pre-storage cylinder 6 from entering the piston cylinder 15, thereby providing a guarantee for the subsequent continuous dry coke quenching.

[0055] Example 2: Please refer to Figure 8-Figure 12For Example 1, the cooling section 3 includes a second fixed cylinder 32, which is fixedly installed on the top end of the discharge barrel 2. A circular plate 33 is fixedly installed on the inner top of the second fixed cylinder 32, and a plurality of first blanking holes 34 are opened on the circular plate 33. A vertical shaft 35 is rotatably installed at the bottom center of the circular plate 33. A rotating plate 36 is provided at the top of the second fixed cylinder 32, and a mounting hole 37 is opened at the center of the rotating plate 36. The rotating plate 36 is fixedly installed on the vertical shaft 35 through the mounting hole 37. A guide plate 361 is also fixedly installed on the outer side of the top of the rotating plate 36. A plurality of second blanking holes 39 are also opened on the rotating plate 36. The aperture of the second blanking hole 39 is smaller than that of the first blanking hole 34. When the red coke in the first fixed cylinder 10 and the pre-storage cylinder 6 is completely cooled, the barrier section 4 is opened, and the cooled red coke will fall onto the circular plate 33, and fall onto the rotating plate 36 through the first dropping hole 34 on the circular plate 33. The vertical shaft 35 is driven by external force, and the vertical shaft 35 drives the rotating plate 36 to rotate. The cooled red coke on the rotating plate 36 will fall through the second dropping hole 39 and finally fall into the discharge barrel 2. By setting the first dropping hole 34 and the second dropping hole 39 that is constantly moving, not only can the cooled red coke be moved and dropped, but the red coke that is stuck together can also be broken up to facilitate dropping.

[0056] An extension tube 38 is integrally provided on the outer side of the bottom of the rotating plate 36. The extension tube 38 is coaxially arranged inside the second fixed tube 32. A sealed bearing 40 is symmetrically installed along the vertical axis 35 on the second fixed tube 32. A rotating shaft 41 is rotatably installed in the sealed bearing 40. An arc plate 42 is fixedly installed at one end of the rotating shaft 41 located inside the second fixed tube 32. The arc plate 42 is coaxially arranged with the extension tube 38, and the arc plate 42 is arranged between the second fixed tube 32 and the extension tube 38. The arc plate 42 faces one end of the extension tube 38. A guide wheel 43 is rotatably installed at both ends of the side, and the top of the guide wheel 43 is set tightly against the bottom of the extension tube 38. An extension shaft 44 is fixedly installed on the end of the rotating shaft 41 away from the arc plate 42, and a rotating wheel 45 is fixedly installed on the end of the extension shaft 44 away from the rotating shaft 41. A first hinge shaft 47 is installed on the side of the end surface of the rotating wheel 45 away from the extension shaft 44. A second hinge shaft 48 is installed on the connecting head 31, and the first hinge shaft 47 and the second hinge shaft 48 located on the same side are connected by a traction rod 46.

[0057] A notch 49 is provided at the bottom of the extension tube 38, and a hanging frame 50 arranged close to the notch 49 is fixedly installed on the outer side of the bottom of the rotating plate 36. A triangular plate 51 is integrally provided on the bottom of the hanging frame 50 facing the notch 49. The triangular plate 51 is arranged inside the notch 49, and the outer wall of the triangular plate 51 and the inner wall of the notch 49 form a guide gap (not shown), and the bottom of the triangular plate 51 protrudes from the bottom of the extension tube 38. When the extension cylinder 38 rotates synchronously with the rotating plate 36, the rotating plate 36 will also drive the triangular plate 51 to rotate synchronously. When one end of the guide gap formed by the triangular plate 51 and the notch 49 rotates to the guide wheel 43, the outer wall of the triangular plate 51 will push the guide wheel 43 to slide into the guide gap, and then drive the guide wheel 43 to move through the guide gap, so that the guide wheel 43 can drive the arc plate 42 to rotate, and the arc plate 42 will drive the rotating shaft 41 to rotate. The rotation of the rotating shaft 41 will drive the extension shaft 44 to rotate synchronously, and then drive the rotating wheel 45 to rotate. The rotation of the rotating wheel 45 will drive the second hinge shaft 48 to move through the first hinge shaft 47 and the traction rod 46. The second hinge shaft 48 can pull the piston rod 27 through the connecting head 31 to work, and then realize the inflation inside the piston cylinder 15 and the inflation into the first fixed cylinder 10.

[0058] A buffer groove 52 is also provided at the top of the notch 49, a sealing sleeve 53 is installed through the side wall of the second fixed cylinder 32, and a dust exhaust pipe 54 is fixedly installed at the end of the sealing sleeve 53 located outside the second fixed cylinder 32. When the cooled red coke begins to fall into the discharge barrel 2, dust is bound to be generated. By connecting the dust exhaust pipe 54 to an external dust exhaust device, a certain dust removal effect can be achieved.

[0059] See also Fig.13 The four corners of the bottom of the base frame 1 are fixedly installed with supporting feet 55, the conical cylinder 56 is coaxially installed inside the discharge barrel 2, and a driving motor (not shown) is installed inside the conical cylinder 56, and the output shaft of the driving motor is fixedly connected to the vertical shaft 35. A discharge port 57 is provided at the bottom of the side wall of the discharge barrel 2, and a cover plate 58 is hingedly installed on the top outer side of the discharge port 57. A discharge rack 59 arranged near the discharge port 57 is also fixedly installed on the base frame 1, and a discharge trough 60 is provided at the top of the discharge rack 59. The cooled red coke falling from the second drop hole 39 can fall into the inside of the discharge barrel 2 and be discharged through the discharge port 57 provided at the bottom of the side wall of the discharge barrel 2, and the discharged red coke can slide out along the discharge trough 60 and be collected.

[0060] Through the above scheme of the present invention, the present invention sets a rotating plate 36 and opens a second blanking hole 39 thereon, so as to cooperate with the first blanking hole 34 on the circular plate 33 to discharge the cooled red coke, and the rotating plate 36 can drive the second blanking hole 39 to rotate, which can not only crush the cooled red coke, but also increase the further cooling of the red coke, and the rotation of the rotating plate 36 can also drive the guide wheel 43 to move through the extension cylinder 38 and the triangular plate 51 set at the bottom thereof, so as to realize the rotation adjustment of the rotating shaft 41, and finally can drive the traction rod 46 to move through the driving wheel 45, so as to realize the reciprocating adjustment of the piston rod 27, and provide power for filling the inert gas into the first fixed cylinder 10 in the early stage.

[0061] Example 3: Please refer to Figure 14-18 For the first and second embodiments, the barrier section 4 includes a third fixed cylinder 61, which is disposed between the first fixed cylinder 10 and the second fixed cylinder 32. A fixing frame 62 is fixedly mounted on the outer wall of the third fixed cylinder 61, and a fixing block 63 is fixedly mounted on one end of the fixing frame 62 away from the third fixed cylinder 61. A guide sleeve 64 is fixedly mounted inside the fixing block 63, and the piston rod 27 is disposed through the guide sleeve 64. The arrangement of the guide sleeve 64 and the fixing frame 62 can increase the stability of the piston rod 27 when it moves back and forth.

[0062] The third fixed cylinder 61 is provided with a blocking member 65 inside, and assembly racks 66 are symmetrically arranged on the outer wall of the third fixed cylinder 61 in pairs. A sealing tube 67 arranged toward the assembly rack 66 is also fixedly installed on the outer wall of the third fixed cylinder 61, and a bearing seat 68 arranged opposite to the sealing tube 67 is installed in the assembly rack 66. Both ends of the blocking member 65 pass through the interior of the third fixed cylinder 61 and are rotatably connected to the bearing seat 68. The blocking member 65 is adjusted to flip inside the third fixed cylinder 61, so as to achieve the blocking and opening of the interior of the third fixed cylinder 61.

[0063] The blocking member 65 includes a first baffle 69 arranged in the middle of the third fixed cylinder 61, a second baffle 71 is arranged on the side of the first baffle 69 away from the center of the third fixed cylinder 61, first mounting shafts 70 are fixedly installed at both ends of the first baffle 69, and second mounting shafts 72 are fixedly installed at both ends of the second baffle 71. The ends of the first mounting shaft 70 and the second mounting shaft 72 both pass through the third fixed cylinder 61 and are rotatably connected to the corresponding bearing seats 68. An auxiliary plate 73 is also fixedly installed on the inner wall of the third fixed cylinder 61. The auxiliary plate 73 is arranged at the connection between the ends of the first baffle 69 and the second baffle 71. A crank 74 is fixedly installed at the ends of the first mounting shaft 70 and the second mounting shaft 72 located on the same side of the outside of the third fixed cylinder 61, and the ends of the crank 74 away from the first mounting shaft 70 and the second mounting shaft 72 are connected through a connecting frame 75. By moving the connecting frame 75 with external force, the connecting frame 75 can drive the crank 74 to move. The movement of the crank 74 will drive the first installation shaft 70 and the second installation shaft 72 connected thereto to rotate, thereby realizing the flip adjustment of the first baffle 69 and the second baffle 71.

[0064] Through the above scheme of the present invention, the first baffle 69 and the second baffle 71 provided in the present invention can be flipped and adjusted by the corresponding first installation shaft 70 and the second installation shaft 72, so as to block the upper and lower areas inside the third fixed cylinder 61, and ensure that the red coke will not fall into the discharge barrel 2 during the early stage of dry quenching. After the dry quenching is completed, the red coke in the first fixed cylinder 10 and the pre-storage cylinder 6 can be smoothly dropped down, and then fall into the discharge barrel 2 for collection, and all the first installation shafts 70 and the second installation shafts 72 can be synchronously rotated and adjusted only by adjusting the connecting frame 75, which is convenient and quick.

[0065] Example 4: Please refer to Figure 19-21 For Example 1, Example 2 and Example 3, the present invention also provides a heat transfer process using the above-mentioned coal pyrolysis continuous dry quenching device, including a dry quenching furnace, a coke discharge box and a flash tank. The coke discharge box is arranged in a rectangular shape, and a spiral water pipe is wound around the outside of the coke discharge box. The water pipe is connected to the flash tank. One end of the flash tank is also connected to the other end of the spiral water pipe through a circulating water pump. The heated inert gas generated by the dry quenching device is transported to the coke discharge box, and the water in the spiral water pipe is heated in cooperation with the coke discharge box. The heated water is transported to the flash tank. The flash evaporation is achieved by regulating the pressure inside the flash tank. The water remaining in the flash tank is continuously transported back to the spiral water pipe through the circulating water pump for heating, and the saturated water vapor is discharged from the flash tank for use. At the same time, the heated inert gas at the outlet of the dry quenching furnace is supplied to the flash tank to ensure the temperature of the flash tank when generating saturated steam, thereby increasing the efficiency of the flash tank in generating saturated steam.

[0066] The coke discharge box uses an external half-pipe (Φ89×4 half-pipe) to indirectly cool down and quench coke and recover the waste heat of the semi-coke. The high-temperature and high-pressure saturated water pressure P=0.45MPa(G) and the saturated water temperature t=154℃ are generated in the heat transfer half-pipe of the coke discharge box. The high-temperature and high-pressure water is expanded and flashed to a pressure of P=0.25MPa(G) and a temperature of t=138.2℃ through throttling and pressure reduction. The saturated water and saturated steam at the same temperature are sent out through a 0.6MPa(G) steam network and used as heating steam or dust suppression for the entire plant. The coke discharge box waste heat recovery circulating water pump circulates and pressurizes the saturated water flashed in the saturated steam flash evaporator and sends it to the coke discharge box heat transfer half-pipe for circulating heat transfer. The water carried away by the flash steam is replenished by the desalted water pump to the inlet of the waste heat recovery circulating water pump of the coke discharge box. Calculation of the amount of transferred hot water, the flash evaporation rate of high-temperature water and the amount of flash steam:

[0067] High temperature water flash evaporation principle please refer to Fig. 22 According to the heat balance, heat input = heat output, we get

[0068] F×h 前 =F×f×h”+(FF×f)×h 后

[0069] f=(h 前 -h 后 ) / (h”-h 后 )=(h 前 -h 后 ) / r

[0070] Where: F——High temperature water entering the flash tank Kg / h

[0071] f——Flash rate %

[0072] h 前 ——Thermal enthalpy of high temperature water before flash evaporation KJ / Kg

[0073] h 后 ——Thermal enthalpy of high temperature water after flash evaporation KJ / Kg

[0074] r——Latent heat of evaporation of high temperature water after flash evaporation (r=h 前 -h 后 )KJ / Kg

[0075] h”——Thermal enthalpy of flash steam KJ / Kg

[0076] The amount of high-temperature hot water discharged from the coke box of this project (calculated based on economic flow rate and heat balance)

[0077] Q=0.785×0.052×1.5×3600×240=2543.4t / h

[0078] The parameters of high-temperature water exiting the outer half pipe of the coke discharge box are: P = 0.45 MPa (G), t = 154°C, and enthalpy value h = 155.1 Kcal / Kg.

[0079] Hot water after flash evaporation: P = 0.25MPa (G), saturated water temperature t = 138.2°C, enthalpy h = 138.8Kcal / Kg, latent heat of evaporation r = 513.4Kcal / Kg.

[0080] The parameters of flash steam are P = 0.25 MPa (G), saturated water temperature t = 138.2°C, and enthalpy value h = 652.2 Kcal / Kg.

[0081] Actual flash evaporation rate of high temperature water f = (h 前 -h 后 ) / r=(155.1-138.8) / 513.4=3.2%

[0082] The flash steam volume is: Q = 2543.4t / h × 3.2% = 80.75t / h.

[0083] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation mode of the present invention in the actual process is described in detail below.

[0084] The piston cylinder 15 of the present invention can provide a buffer zone for the inert gas used for dry coke quenching, and after the inert gas enters the piston cylinder 15, its pressure can be changed by the up and down movement of the piston head 26 inside the piston cylinder 15, and then the inert gas can be guided and blocked by the change of the internal and external pressures in conjunction with the sealing plate 29 provided in the one-way component 24, thereby preventing the inert gas from flowing back, and at the same time preventing the dust in the first fixed cylinder 10 and the pre-storage cylinder 6 from entering the piston cylinder 15, thereby providing a guarantee for the subsequent continuous dry coke quenching.

[0085] The present invention provides a rotating plate 36 and opens a second material discharge hole 39 thereon, so that the first material discharge hole 34 on the circular plate 33 can be used to discharge the cooled red coke, and the rotating plate 36 can drive the second material discharge hole 39 to rotate, which can not only crush the cooled red coke, but also increase the further cooling of the red coke. The rotation of the rotating plate 36 can also drive the guide wheel 43 to move through the extension cylinder 38 and the triangular plate 51 provided at the bottom thereof, so as to realize the rotation adjustment of the rotating shaft 41, and finally, the driving wheel 45 can drive the traction rod 46 to move, so as to realize the reciprocating adjustment of the piston rod 27, and provide power for filling the inert gas into the first fixed cylinder 10 in the early stage.

[0086] The first baffle 69 and the second baffle 71 provided in the present invention can be flipped and adjusted by the corresponding first installation shaft 70 and the second installation shaft 72, so as to block the upper and lower areas inside the third fixed cylinder 61, and ensure that the red coke will not fall into the discharge barrel 2 during the early stage of dry quenching. After the dry quenching is completed, the red coke in the first fixed cylinder 10 and the pre-storage cylinder 6 can be smoothly dropped down, and then fall into the discharge barrel 2 for collection. Moreover, all the first installation shafts 70 and the second installation shafts 72 can be rotated and adjusted synchronously only by adjusting the connecting frame 75, which is convenient and quick.

[0087] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0088] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0090] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal pyrolysis continuous dry quenching device, comprising a base frame (1), characterized in that: A discharge barrel (2) is fixedly mounted on the top of the base frame (1), a cooling section (3) is connected to the top of the discharge barrel (2), a barrier section (4) is fixedly mounted on the top of the cooling section (3), a dry quenching section (5) is connected to the top of the barrier section (4), a pre-storage cylinder (6) is fixedly mounted on the top of the dry quenching section (5), a top cover (7) is connected to the top of the pre-storage cylinder (6), a coke loading port (8) is provided at the top end of the top cover (7), and an exhaust pipe (9) is also mounted on the side wall of the pre-storage cylinder (6); The dry quenching section (5) comprises a first fixed cylinder (10), an extension frame (11) is relatively fixedly mounted on the outer wall of the first fixed cylinder (10), an air supply mechanism (12) is mounted on the extension frame (11), a through hole (13) is opened at the bottom of the side wall of the first fixed cylinder (10), and a connecting pipe (14) is arranged outside the first fixed cylinder (10); The air replenishing mechanism (12) comprises a piston cylinder (15), a piston head (26) is slidably provided inside the piston cylinder (15), a piston rod (27) is fixedly installed at the bottom of the piston head (26), an air outlet pipe (16) is externally connected to a side of the piston cylinder (15) close to the first fixed cylinder (10), the bottom end of the air outlet pipe (16) is connected to the connecting pipe (14), an air inlet pipe (17) is externally connected to a side of the piston cylinder (15) away from the first fixed cylinder (10), a first air outlet (18) and a second air outlet (19) are provided on a side wall of the piston cylinder (15) close to the air outlet pipe (16), the top end of the air outlet pipe (16) is connected to the first air outlet (18), and an air outlet extension port (19) is provided on a side wall of the air outlet pipe (16) facing the piston cylinder (15). The piston cylinder (15) is provided with a first air inlet (20) and a second air inlet (21) on a side wall close to the air inlet pipe (17), and the bottom end of the air inlet pipe (17) is connected to the second air inlet (21). The air inlet pipe (17) is provided with an air inlet extension port (23) on a side wall close to the piston cylinder (15), and the air inlet extension port (23) is connected to the first air inlet (20). The first air outlet (18) is arranged opposite to the first air inlet (20), and the second air outlet (19) is arranged opposite to the second air inlet (21), and a one-way component (24) is installed in each of the first air outlet (18), the second air outlet (19), the first air inlet (20), and the second air inlet (21).

2. A coal pyrolysis continuous dry quenching device according to claim 1, characterized in that: The one-way component (24) includes an annular plate (25), an end face of the annular plate (25) facing the flow direction of the inert gas is fixedly mounted with a hinge seat (28), a sealing plate (29) is mounted on the hinge seat (28), and an end face of the sealing plate (29) facing the annular plate (25) is fixedly mounted with a sealing plug (30), the diameter of the sealing plate (29) is larger than the inner diameter of the annular plate (25), the sealing plug (30) is clearance-matched with the inner wall of the annular plate (25), and a connecting head (31) is integrally provided at one end of the piston rod (27) away from the piston head (26).

3. A coal pyrolysis continuous dry quenching device according to claim 2, characterized in that: The cooling section (3) comprises a second fixed cylinder (32), the second fixed cylinder (32) is fixedly mounted on the top end of the discharge barrel (2), a circular plate (33) is fixedly mounted on the inner top of the second fixed cylinder (32), a plurality of first material discharge holes (34) are provided on the circular plate (33), a vertical shaft (35) is rotatably mounted at the bottom center of the circular plate (33), a rotating plate (36) is provided at the inner top of the second fixed cylinder (32), a mounting hole (37) is provided at the center of the rotating plate (36), the rotating plate (36) is fixedly mounted on the vertical shaft (35) through the mounting hole (37), a guide plate (361) is also fixedly mounted on the outer side of the top of the rotating plate (36), a plurality of second material discharge holes (39) are also provided on the rotating plate (36), and the aperture of the second material discharge hole (39) is smaller than the aperture of the first material discharge hole (34).

4. A coal pyrolysis continuous dry quenching device according to claim 3, characterized in that: An extension tube (38) is integrally provided on the outer side of the bottom of the rotating plate (36), and the extension tube (38) is coaxially arranged inside the second fixed tube (32). A sealing bearing (40) is symmetrically installed on the second fixed tube (32) along the vertical axis (35). A rotating shaft (41) is rotatably installed in the sealing bearing (40). An arc plate (42) is fixedly installed at one end of the rotating shaft (41) located inside the second fixed tube (32). The arc plate (42) is arranged between the second fixed tube (32) and the extension tube (38). The arc plate (42) is rotatably installed at both ends of one side of the extension tube (38). A guide wheel (43) is provided, the top of the guide wheel (43) is arranged tightly against the bottom of the extension tube (38), an extension shaft (44) is fixedly installed on one end of the rotating shaft (41) away from the arc plate (42), a rotating wheel (45) is fixedly installed on one end of the extension shaft (44) away from the rotating shaft (41), a first hinge shaft (47) is installed on the side of one end surface of the rotating wheel (45) away from the extension shaft (44), a second hinge shaft (48) is installed on the connecting head (31), and the first hinge shaft (47) and the second hinge shaft (48) located on the same side are connected via a traction rod (46).

5. A coal pyrolysis continuous dry quenching device according to claim 4, characterized in that: A notch (49) is provided at the bottom of the extension tube (38); a hanging frame (50) arranged near the notch (49) is fixedly installed on the outer side of the bottom of the rotating plate (36); a triangular plate (51) is integrally provided at the bottom of the hanging frame (50) on the side facing the notch (49); the triangular plate (51) is arranged inside the notch (49); the outer wall of the triangular plate (51) and the inner wall of the notch (49) form a guide gap; the bottom of the triangular plate (51) protrudes from the bottom of the extension tube (38).

6. A coal pyrolysis continuous dry quenching device according to claim 5, characterized in that: A buffer groove (52) is also provided at the top of the notch (49), a sealing sleeve (53) is installed through the side wall of the second fixed cylinder (32), and a dust exhaust pipe (54) is fixedly installed at the end of the sealing sleeve (53) located outside the second fixed cylinder (32).

7. A coal pyrolysis continuous dry quenching device according to claim 6, characterized in that: Support legs (55) are fixedly mounted at the four corners of the bottom of the base frame (1); a conical cylinder (56) is coaxially mounted inside the discharge barrel (2); a driving motor is mounted inside the conical cylinder (56); the output shaft of the driving motor is fixedly connected to the vertical shaft (35); a discharge port (57) is provided at the bottom of the side wall of the discharge barrel (2); a cover plate (58) is hingedly mounted on the outer side of the top of the discharge port (57); a discharge rack (59) arranged near the discharge port (57) is also fixedly mounted on the base frame (1); a discharge trough (60) is provided at the top of the discharge rack (59) which is inclined.

8. A coal pyrolysis continuous dry quenching device according to claim 7, characterized in that: The blocking section (4) comprises a third fixed cylinder (61), wherein the third fixed cylinder (61) is arranged between the first fixed cylinder (10) and the second fixed cylinder (32), a fixed frame (62) is fixedly installed on the outer wall of the third fixed cylinder (61), a fixed block (63) is fixedly installed on one end of the fixed frame (62) away from the third fixed cylinder (61), a guide sleeve (64) is fixedly installed inside the fixed block (63), and the piston rod (27) is arranged to pass through the guide sleeve (64).

9. A coal pyrolysis continuous dry quenching device according to claim 8, characterized in that: A blocking member (65) is provided inside the third fixed tube (61), and assembly frames (66) are symmetrically provided on the outer wall of the third fixed tube (61). A sealing tube (67) arranged toward the assembly frame (66) is also fixedly installed on the outer wall of the third fixed tube (61), and a bearing seat (68) arranged opposite to the sealing tube (67) is installed in the assembly frame (66). The blocking member (65) comprises a first baffle (69) provided in the middle of the third fixed tube (61), and a second baffle (71) is provided on the side of the first baffle (69) away from the center of the third fixed tube (61). First mounting shafts (70) are fixedly installed at both ends of the first baffle (69), and second mounting shafts (72) are fixedly installed at both ends of the second baffle (71). The ends of the first mounting shaft (70) and the second mounting shaft (72) both pass through the third fixed tube (61) and are connected to the corresponding bearing seats (68).

10. A coal pyrolysis continuous dry quenching device according to claim 9, characterized in that: An auxiliary plate (73) is fixedly mounted on the inner wall of the third fixed cylinder (61), and the auxiliary plate (73) is arranged at the connection between the ends of the first baffle plate (69) and the second baffle plate (71). A crank (74) is fixedly mounted on the ends of the first installation shaft (70) and the second installation shaft (72) located on the same side of the outside of the third fixed cylinder (61), and the ends of the crank (74) away from the first installation shaft (70) and the second installation shaft (72) are connected via a connecting frame (75).

Images