A dry coal preparation plant

Abstract

The application provides a dry coal separation device, which belongs to the technical field of coal separation and comprises a placing shell, a crushing cylinder fixedly connected in the placing shell, and a plurality of crushing rods and a rotating shaft arranged in the crushing cylinder. The coal and gangue mixed in the crushing cylinder are stirred by rotating the crushing rods and the rotating shaft, and the coal and the gangue are separated based on the difference in hardness between the coal and the gangue. The falling coal and gangue are transported by a conveying device, and the coal and the gangue are pressed by a crushing plate when passing below the crushing plate, so that the particle sizes of the coal and the gangue are different.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of coal separation, and particularly relates to a dry coal separation device. BACKGROUND

[0002] Coal is a combustible black or dark brown sedimentary rock, usually occurring in rock strata or veins of coal beds or seams in the earth, and is mainly composed of carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus elements, and the sum of the first three elements accounts for more than 95% of organic matter. Coal is a very important energy source, mainly used to produce electricity or heat energy through combustion; it is also an important raw material for metallurgical and chemical industries, used for refining metals, or producing chemical fertilizers and many chemical products. The coal used in industry is mined from nature, but the coal mined from nature contains a lot of impurities and sulfur, which cannot be directly applied to industrial production and must be separated or sorted.

[0003] Chinese authorized invention (publication number) CN112893130B discloses a full-grain high-efficiency dry coal separation equipment, which comprises an external device. The external device comprises an external plate. A vibration groove is formed on the upper right side of the front surface of the external plate. A vibration bag is fixedly connected to the right inner part of the vibration groove. A spring one is fixedly connected to the right inner wall of the vibration bag. A piston is fixedly connected to the left end of the spring one. The shape of the piston comprises a T-shaped type. The left end of the piston penetrates the outside of the vibration bag. The piston is located in the inside of the vibration groove. A coal separation device is arranged in front of the external plate. The coal separation device comprises a coal separation box one. A coal separation box two is fixedly connected to the left side of the coal separation box one. A vibration column is fixedly connected to the right side of the rear surface of the coal separation box one. The rear end of the vibration column is inserted into the vibration groove.

[0004] The above-mentioned existing patent application full-grain high-efficiency dry coal separation equipment can separate coal and gangue mixed in it by vibration and wind blowing. The method is based on the different weights of coal and gangue of the same volume caused by different densities. However, if the weights of large-volume coal and small-volume gangue are the same, the coal will be mixed with the gangue when using the blowing method for separation, which will lead to the failure of classification of coal and gangue. This is also a common problem of the above-mentioned existing coal separation technology. The technology must use manual separation or gangue separation after separation, so the precision of the existing coal separation technology cannot meet the direct application of industry, and the convenience of separation application needs to be further improved. SUMMARY

[0005] Based on the problems existing in the prior art, the present application provides a dry coal separation device, which aims to solve the problem that the precision of the existing wind blowing type dry separator is poor.

[0006] According to the technical scheme provided by the present application, the present application provides an environment-friendly and energy-saving full-grain dry coal separation device, which comprises a placing shell, a plurality of breaking rods, a transmission shell and a transmission device, the placing shell is fixedly connected with a crushing cylinder in the inside, and a plurality of the breaking rods are all rotationally connected to the upper inner wall of the crushing cylinder through a rotating shaft; the transmission shell is fixedly connected to one end of the placing shell, and a transition groove is formed in one end of the placing shell; and the transmission device is arranged on the side inner wall of the placing shell and the transmission shell.

[0007] Preferably, the environment-friendly and energy-saving full-grain dry coal separation device further comprises a pressure detection mechanism, each group of the pressure detection mechanism is composed of an assembling plate, two half gears, a pressing rod, two racks, a second motor, a pressing groove and a crushing plate, the assembling plate is fixedly connected to the upper end of the transmission shell, and the two half gears are both rotationally connected to one end of the assembling plate through a rotating rod.

[0008] Preferably, the pressing groove is formed in the upper end of the transmission shell, the pressing rod is slidingly connected in the pressing groove, and the two racks are both fixedly connected to the two ends of the pressing rod. The two racks are intermittently engaged with the two half gears, the crushing plate is fixedly connected to the lower end of the pressing rod, the second motor is fixedly connected to one end of the assembling plate, and one of the output shafts of the second motor is fixedly connected with one of the rotating rods.

[0009] As a preferred scheme of the present application, the environment-friendly and energy-saving full-grain dry coal separation device further comprises a pushing mechanism, the pushing mechanism is composed of a third motor, a lead screw, a lead screw nut, a pushing plate and a pushing groove. The pushing groove is formed in one end of the transmission shell, the third motor is arranged on one side of the transmission shell, and the lead screw nut is threadedly connected to the circumferential surface of the lead screw. The lead screw is rotationally connected to one end of the transmission shell, and the output end of the third motor is fixedly connected with the lead screw, and the pushing plate is fixedly connected to the upper end of the lead screw nut.

[0010] Further, the pushing plate is slidingly connected in the pushing groove.

[0011] As a preferred scheme of the present application, the environment-friendly and energy-saving full-grain dry coal separation device further comprises a collecting mechanism, the collecting mechanism is composed of a conveying groove, a collecting shell, a filter screen, a guide plate and an aggregation shell, and the aggregation shell is fixedly connected to the two ends of the transmission shell. Preferably, the guide plate is fixedly connected to the inner walls of the two sides of the transmission shell, the conveying groove is formed in one end of the transmission shell, the collecting shell is fixedly connected to one end of the transmission shell, and the filter screen is fixedly connected in the collecting shell.

[0012] Compared with the prior art, the environment-friendly and energy-saving full-grain dry coal separation device has the following beneficial effects:

[0013] 1. When coal and gangue mixed therein need to be separated, the environment-friendly and energy-saving full-grain dry coal separation device can pour the coal and gangue into the crushing cylinder, and then the coal and gangue can be stirred by rotating the rotating shaft and the plurality of breaking rods, and because the hardness of the coal and the gangue is different, the coal can be crushed into small pieces, while the gangue cannot, thereby completing the first step of separation.

[0014] 2. After the environment-friendly and energy-saving full-grain dry coal separation device, the falling coal and gangue are transported by the conveying device, and when passing under the crushing plate, the coal and gangue are pressed by the crushing plate, and because the coal and the gangue can withstand different pressures, the coal can be crushed while the gangue cannot, thereby making the particle size of the coal and the gangue different, and then the larger gangue particles are pushed into the collection shell by the pushing mechanism, and the large particles of the gangue are intercepted by the filter screen again, so that the small particles of the coal enter the collection shell, thereby achieving the classification accuracy of the coal and the gangue.

[0015] 3. The environment-friendly and energy-saving full-grain dry coal separation device can prevent the coal in the crushing cylinder from falling naturally onto the surface of the conveying device by the intercepting mechanism, thereby preventing the coal from falling without being crushed, thereby improving the classification accuracy of the device and preventing the mixing of the coal and the gangue.

[0016] 4. The environment-friendly and energy-saving full-grain dry coal separation device can transmit power to the breaking rod and the pressure detection mechanism through the transmission mechanism, thereby improving the rotation automation of the breaking rod and the working automation of the pressure detection mechanism, and the coal on the surface of the conveying device can be transported and stored by the aggregation shell through the guide plate.

[0017] 5. The environment-friendly and energy-saving full-grain dry coal separation device can collect the falling coal through the storage shell, and can facilitate the subsequent removal of the coal, and the third motor can be fixed and stabilized by the mounting plate and the two connecting rods, thereby improving the use stability of the third motor. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application together with the embodiments thereof, and explain the present application, and do not constitute a limitation of the present application. In the drawings:

[0019] Figure 1 is a first front perspective view of the environment-friendly and energy-saving full-grain dry coal separation device of the present application;

[0020] Figure 2 is a main cross-sectional perspective view of the environment-friendly and energy-saving full-grain dry coal separation device of the present application;

[0021] Figure 3 is Figure 2 is a local enlarged view of position A in the middle.

[0022] Figure 4 It is a rear perspective view in the present application;

[0023] Figure 5 It is a side sectional perspective view of the environment-friendly and energy-saving full-grain dry coal separation device in the present application;

[0024] Figure 6 It is a second main perspective view of the environment-friendly and energy-saving full-grain dry coal separation device in the present application;

[0025] Figure 7 It is a third main perspective view of the environment-friendly and energy-saving full-grain dry coal separation device in the present application.

[0026] The reference signs in the drawings: 1, placing shell; 101, crushing cylinder; 102, breaking rod; 103, funnel; 104, intercepting groove; 105, intercepting plate; 106, telescopic rod; 107, spring; 108, stress plate; 109, handle; 110, anti-skid sleeve; 111, inclined slide plate; 2, transmission device; 201, first motor; 202, transmission shell; 203, assembling plate; 204, half gear; 205, first I-shaped wheel; 206, first transmission belt; 207, pressing rod; 208, second motor; 209, crushing plate; 210, rack; 3, bevel gear; 301, second I-shaped wheel; 302, transmission rod; 303, second transmission belt; 4, collecting shell; 401, storage shell; 402, guide plate; 403, polymerization shell; 404, drawer groove; 405, filter screen; 406, material conveying groove; 407, heating pipe; 5, third motor; 501, screw rod; 502, pushing plate; 503, screw rod nut; 504, anti-dropping block; 505, connecting rod; 506, mounting plate; 6, placing groove; 601, stabilizing rod; 602, stabilizing block. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] In addition, it should be further explained that only the parts related to the present application are shown in the drawings for convenience of description. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0029] It should be noted that the terms "first", "second" and the like in the present application are used only to distinguish different devices, modules or units, and do not imply the order or interdependence of the functions performed by these devices, modules or units.

[0030] It should be noted that the modification of "one" or "multiple" in the present application is illustrative but not restrictive, and those skilled in the art should understand that unless otherwise explicitly indicated in the context, it should be understood as "one or more".

[0031] The present application will be further described in detail below with reference to the accompanying drawings:

[0032] The present application provides an environment-friendly and energy-saving full-grain dry coal separation device, which comprises a placing shell, a plurality of breaking rods, a transmission shell and a transmission device, the placing shell is fixedly connected with a crushing cylinder, and the plurality of breaking rods are rotatably connected to the upper inner wall of the crushing cylinder through a rotating shaft; the transmission shell is fixedly connected to one end of the placing shell, and a transition groove is formed in one end of the placing shell; the transmission device is arranged on the inner wall of one side of the placing shell and the transmission shell.

[0033] The environment-friendly and energy-saving full-grain dry coal separation device further comprises a pressure detection mechanism, each group of the pressure detection mechanism comprises an assembly plate, two half gears, a pressing rod, two racks, a second motor, a pressing groove and a crushing plate, the assembly plate is fixedly connected to the upper end of the transmission shell, and the two half gears are rotatably connected to one end of the assembly plate through a rotating rod.

[0034] Preferably, the pressing groove is formed in the upper end of the transmission shell, the pressing rod is slidably connected in the pressing groove, and the two racks are fixedly connected to the two ends of the pressing rod, respectively. The two racks are intermittently engaged with the two half gears, the crushing plate is fixedly connected to the lower end of the pressing rod, the second motor is fixedly connected to one end of the assembly plate, and one of the output shafts of the second motor is fixedly connected with one of the rotating rods.

[0035] As a preferred scheme of the present application, the environment-friendly and energy-saving full-grain dry coal separation device further comprises a pushing mechanism, the pushing mechanism comprises a third motor, a lead screw, a lead screw nut, a pushing plate and a pushing groove. The pushing groove is formed in one end of the transmission shell, the third motor is arranged on one side of the transmission shell, and the lead screw nut is threadedly connected to the circumferential surface of the lead screw. The lead screw is rotatably connected to one end of the transmission shell, and the output end of the lead screw and the third motor are fixedly connected, and the pushing plate is fixedly connected to the upper end of the lead screw nut.

[0036] Further, the pushing plate is slidably connected in the pushing groove.

[0037] Preferably, the environment-friendly and energy-saving full-grain dry coal separation device further comprises a collecting mechanism, which is composed of a conveying groove, a collecting shell, a filter screen, a guide plate and an aggregate shell, and the aggregate shell is fixedly connected to the two ends of the conveying shell.

[0038] Preferably, the environment-friendly and energy-saving full-grain dry coal separation device further comprises a transmission mechanism, which is composed of a transmission rod, a first transmission belt, two first I-shaped wheels, a second transmission belt, two second I-shaped wheels and two bevel gears, the transmission rod is rotatably arranged on the upper side of the crushing cylinder, the two first I-shaped wheels are respectively fixedly connected to the two rotating rods, the two second I-shaped wheels are respectively fixedly connected to the circumferential surface of the transmission rod and the other output end of the second motor, the first transmission belt is in transmission connection with the circumferential surface of the two first I-shaped wheels, the second transmission belt is in transmission connection with the circumferential surface of the two second I-shaped wheels, the two bevel gears are respectively rotatably connected to the upper end of the crushing cylinder and the circumferential surface of the transmission rod through a rotating column, and the two bevel gears are in meshing engagement, and the rotating column is fixedly connected to the upper end of the rotating shaft.

[0039] Preferably, the environment-friendly and energy-saving full-grain dry coal separation device further comprises a flow interception mechanism, which is composed of a flow interception groove, a flow interception plate, two force receiving plates and two springs, the flow interception groove is arranged at one end of the placing shell, the flow interception plate is in sliding connection with the flow interception groove, the two force receiving plates are respectively fixedly connected to the upper and lower ends of the flow interception plate, and the two springs are respectively fixedly connected to one end of the two force receiving plates and one end of the placing shell.

[0040] Preferably, one end of the placing shell is fixedly connected with a first motor, the first motor is connected with the conveying device, one side inner wall of the placing shell is fixedly connected with an inclined sliding plate, and the lower end of the crushing cylinder is fixedly connected with a funnel.

[0041] Preferably, the two ends of the pushing plate are fixedly connected with anti-dropping blocks, the two side inner walls of the conveying shell are provided with a plurality of heating pipes, one end of the flow interception plate is fixedly connected with a handle, and the circumferential surface of the handle is fixedly connected with an anti-skid sleeve.

[0042] Preferably, one end of each of the two force receiving plates is fixedly connected with an extension rod, and the two springs are respectively sleeved on the circumferential surface of the two extension rods.

[0043] As a preferred embodiment of the present invention, one end of the collecting shell is provided with a drawer groove, and a storage shell is slidably connected in the drawer groove.

[0044] In a preferred embodiment of the present invention, a limiting groove is formed at the upper end of the assembly plate, a stabilizing rod is fixedly connected to the lower inner wall of the limiting groove, a stabilizing block is fixedly connected to one end of the pressing rod, and the stabilizing block is slidably connected to the outer surface of the stabilizing rod.

[0045] Please see Figures 1-7 The present invention provides an environmentally friendly and energy-saving dry coal preparation device for all particle sizes, which includes: a placement shell 1, and a crushing cylinder 101 fixedly connected inside the placement shell 1;

[0046] Multiple crushing rods 102 are rotatably connected to the upper inner wall of the crushing cylinder 101 via a rotating shaft;

[0047] The transmission shell 202 is fixedly connected to one end of the placement shell 1, and a transition groove is provided at one end of the placement shell 1.

[0048] Transmission device 2, which is disposed on the inner wall of one side of the housing 1 and the transmission housing 202; and

[0049] The pressure testing mechanism consists of an assembly plate 203, two half gears 204, a pressing rod 207, two racks 210, a second motor 208, a pressing groove, and a crushing plate 209. The assembly plate 203 is fixedly connected to the upper end of the transmission shell 202. The two half gears 204 are rotatably connected to one end of the assembly plate 203 via rotating rods. The pressing groove is opened at the upper end of the transmission shell 202. The pressing rod 207 is slidably connected in the pressing groove. The two racks 210 are fixedly connected to both ends of the pressing rod 207, and the two racks 210 intermittently mesh with the two half gears 204. The crushing plate 209 is fixedly connected to the lower end of the pressing rod 207. The second motor 208 is fixedly connected to one end of the assembly plate 203, and one of the output shafts of the second motor 208 is fixedly connected to one of the rotating rods.

[0050] In the specific embodiments of the present application, when the coal and the gangue mixed therein need to be classified, they can be poured into the crushing cylinder 101, and then the rotating shaft is rotated to synchronously drive the plurality of breaking rods 102 to rotate and agitate the coal and the gangue therein. At this time, since the coal and the gangue have different densities, the coal is broken into small pieces, while the gangue is not affected. Then the mixture of the coal and the gangue falling from the upper end of the conveying device 2 can be conveyed by the conveying device 2, and when reaching the lower end of the crushing plate 209, the pressing rod 207 can be moved downward through the pressing groove and start to move back and forth in a cycle by the rotation of the output shaft of the second motor 208 and the gap engagement of the two half gears 204 and the two racks 210, so as to facilitate the subsequent hydraulic movement of the coal mixture. Then the crushing plate 209 contacts and presses the mixture of the coal and the gangue, and the coal and the gangue can withstand different pressures, the coal is compressed and the gangue is not, at this time the coal is broken into smaller particles again. By classifying the gangue and coal according to their density, pressure bearing capacity and hardness, the coal can be artificially crushed, thereby improving the particle size difference between the coal and the gangue, and improving the classification accuracy of the coal and the gangue. In actual use, an input hole can be opened at one end of the placing shell 1 to facilitate the addition of the coal mixture. It should be noted that in addition to the above specific implementable structures, the structures in the prior art can also be used to implement the present application, for example, the specific model of the second motor 208 and the conveying device 2 can be selected by the relevant technical personnel skilled in the art, and the above regarding the second motor 208 and the conveying device 2 can be implemented and used in the prior art, and the present scheme is not described in detail.

[0051] For details, please refer to Figure 2 The environment-friendly and energy-saving full-grain-level dry coal separation device further comprises a pushing mechanism, which is composed of a third motor 5, a lead screw 501, a lead screw nut 503, a pushing plate 502 and a pushing groove. The pushing groove is opened at one end of the conveying shell 202, the third motor 5 is arranged on one side of the conveying shell 202, the lead screw nut 503 is threadedly connected to the circumferential surface of the lead screw 501, the lead screw 501 is rotatably connected to one end of the conveying shell 202, and the lead screw 501 and the output end of the third motor 5 are fixedly connected, the pushing plate 502 is fixedly connected to the upper end of the lead screw nut 503, and the pushing plate 502 is slidingly connected in the pushing groove.

[0052] In this embodiment: because the coal and gangue are crushed, the volume of the coal can be smaller than the volume of the gangue, at this time, the third motor 5 can be started to drive the lead screw 501 to rotate, and then the lead screw nut 503 can be moved and drive the pushing plate 502 to move in the pushing groove, the gangue with large volume can be pushed, and the coal with small volume is less pushed, and the separation accuracy of the coal and the gangue is improved.

[0053] For details, please refer to Figure 3 The environment-friendly and energy-saving full-grain-level dry coal separation device further comprises a collecting mechanism, the collecting mechanism is composed of a conveying groove 406, a collecting shell 4, a filter screen 405, a guide plate 402 and a polymerization shell 403, the polymerization shell 403 is fixedly connected to both ends of the transmission shell 202, the guide plate 402 is fixedly connected to the inner walls of both sides of the transmission shell 202, the conveying groove 406 is arranged at one end of the transmission shell 202, the collecting shell 4 is fixedly connected to one end of the transmission shell 202, and the filter screen 405 is fixedly connected to the inside of the collecting shell 4.

[0054] In this embodiment: when the mixture of the coal and the gangue is pushed, the mixture can be sent into the collecting shell 4 through the conveying groove 406, and then the large particles of the gangue can be intercepted and filtered through the filter screen 405, and the small particles of the coal can enter the lower inner wall of the collecting shell 4, so that the separation accuracy of the coal and the gangue is further improved, and the coal on the surface of the transmission device 2 can be guided to the polymerization shell 403 through the guide plate 402, so that the coal is collected.

[0055] For details, please refer to Figure 4 The environment-friendly and energy-saving full-grain-level dry coal separation device further comprises a transmission mechanism, the transmission mechanism is composed of a transmission rod 302, a first transmission belt 206, two first I-wheels 205, a second transmission belt 303, two second I-wheels 301 and two conical gears 3, the transmission rod 302 is rotatably arranged on the upper side of the crushing cylinder 101, the two first I-wheels 205 are fixedly connected to the two rotating rods respectively, the two second I-wheels 301 are fixedly connected to the circumferential surface of the transmission rod 302 and the other output end of the second motor 208 respectively, the first transmission belt 206 is in transmission connection with the circumferential surfaces of the two first I-wheels 205, the second transmission belt 303 is in transmission connection with the circumferential surfaces of the two second I-wheels 301, the two conical gears 3 are rotatably connected to the upper end of the crushing cylinder 101 and the circumferential surface of the transmission rod 302 through rotating columns respectively, the two conical gears 3 are engaged with each other, and the rotating column is fixedly connected to the upper end of the rotating shaft.

[0056] In this embodiment: when the output shaft of the second motor 208 rotates, one of the rotating rods will be driven to rotate, at this time, through the transmission of the first transmission belt 206 and the two first spools 205, the two rotating rods and the two half gears 204 can be driven to rotate, thereby the rack 210 can be driven to move, improving the automation of the device, and the rotation of the other output shaft of the second motor 208 can also transmit power to the transmission rod 302 through the second transmission belt 303 and the two second spools 301 to make it rotate, and then through the meshing of the two bevel gears 3, the rotating column can be driven to rotate synchronously, and the rotating shaft and the plurality of breaking rods 102 on the circumferential surface thereof can be driven to rotate, thereby improving the automatic operation of the components of the device.

[0057] For details, please refer to Figure 5 The environment-friendly and energy-saving full-grain-level dry coal separation device further comprises a flow interception mechanism, which is composed of a flow interception groove 104, a flow interception plate 105, two stress plates 108 and two springs 107. The flow interception groove 104 is arranged at one end of the placing shell 1, the flow interception plate 105 is slidingly connected in the flow interception groove 104, the two stress plates 108 are fixedly connected at the upper and lower ends of the flow interception plate 105, and the two springs 107 are fixedly connected at one end of the two stress plates 108 and one end of the placing shell 1.

[0058] In this embodiment: when the coal mixture is added to the crushing cylinder 101, the elastic retraction of the spring 107 can drive the stress plate 108 to move to one end of the placing shell 1, and simultaneously drive the flow interception plate 105 to slide in the flow interception groove 104, thereby intercepting the crushing cylinder 101, preventing the mixed material above the flow interception plate 105 from falling, and preventing the coal mixture from falling without being crushed, thereby improving the classification accuracy of the device.

[0059] For details, please refer to Figure 6 One end of the placing shell 1 is fixedly connected with the first motor 201, the first motor 201 is connected with the transmission device 2, the inner wall of one side of the placing shell 1 is fixedly connected with the inclined sliding plate 111, the lower end of the crushing cylinder 101 is fixedly connected with the funnel 103, the two ends of the push plate 502 are fixedly connected with the anti-dropping blocks 504, the inner walls of the two sides of the transmission shell 202 are provided with a plurality of heating pipes 407, one end of the flow interception plate 105 is fixedly connected with the handle 109, and the circumferential surface of the handle 109 is fixedly connected with the anti-slip sleeve 110.

[0060] In this embodiment: through the first motor 201 can and transmission device 2 to provide driving force, and then improve the operation automation of transmission device 2, through the inclined slide plate 111 can improve the accuracy of the coal falling from the pulverizing cylinder 101, through the hopper 103 can improve the concentration of coal material falling in the pulverizing cylinder 101, through the two anti-off blocks 504 can prevent the damage caused by the push plate 502 off the push groove, through the handle 109 and the anti-skid sleeve 110 can improve the convenience of pulling the intercepting plate 105, and through the plurality of heating pipes 407 can also heat the coal to prevent the coal from being damp.

[0061] For details, see Figure 7 , one end of the two force plates 108 is fixedly connected with the telescopic rod 106, the two springs 107 are respectively sleeved on the circumferential surface of the two telescopic rods 106, one end of the third motor 5 is fixedly connected with the mounting plate 506, one end of the mounting plate 506 is fixedly connected with the plurality of connecting rods 505, one end of the collecting shell 4 is provided with the drawer slot 404, and the drawer slot 404 is slidably connected with the storage shell 401.

[0062] In this embodiment: through the two telescopic rods 106 can improve the use stability of the two springs 107, prevent the two springs 107 from bending and deforming, thereby prolonging the service life of the spring 107, through the mounting plate 506 and the two connecting rods 505 can fix the third motor 5, thereby preventing the third motor 5 from falling, and improving the use stability of the third motor 5, through the storage shell 401 can collect the falling coal, and through the drawer slot 404 can draw out the storage shell 401, convenient for taking out and collecting the coal in the storage shell 401.

[0063] For details, see Figure 5 , the upper end of the assembling plate 203 is provided with a limiting slot, the lower inner wall of the limiting slot is fixedly connected with the stabilizing rod 601, one end of the pressing rod 207 is fixedly connected with the stabilizing block 602, and the stabilizing block 602 is slidably connected with the outer surface of the stabilizing rod 601.

[0064] In this embodiment: when the pressing rod 207 moves, the stabilizing block 602 can also be driven to slide on the outer surface of the placing groove 6, thereby improving the verticality and stability of the movement of the pressing rod 207, and improving the use stability of the device.

[0065] The working principle and use process of the present application: when it is needed to classify the coal and the gangue mixed therein, the coal and the gangue can be poured into the crushing cylinder 101, then the rotating shaft is rotated to synchronously drive the plurality of breaking rods 102 to rotate and agitate the coal and the gangue therein, at this time, since the densities of the coal and the gangue are different, the coal is broken into small pieces, while the gangue is not affected, then the mixture of the coal and the gangue falling down falls to the upper end of the conveying device 2, then the coal and gangue mixture can be conveyed by the conveying device 2, then the coal and gangue mixture can be pressed by the pressure detection mechanism, at this time, since the hardnesses of the coal and the gangue are different, the coal can be crushed while the gangue cannot, then the gangue can be pushed into the collecting mechanism by the pushing mechanism, then the gangue and the coal can be separated by the collecting mechanism again, thereby improving the separation accuracy of the coal and the gangue.

[0066] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A dry coal preparation device, characterized in that, It includes a placement shell, multiple crushing rods, a transmission shell, a transmission device, a flow interception mechanism, a pushing mechanism, and a collection mechanism. A crushing cylinder (101) is fixedly connected inside the placement shell (1), and multiple crushing rods (102) are rotatably connected to the upper inner wall of the crushing cylinder (101) via a rotating shaft. The transmission shell (202) is fixedly connected to one end of the placement shell (1), and a transition groove is provided at one end of the placement shell (1); the transmission device (2) is disposed on one inner wall of the placement shell (1) and the transmission shell (202); The flow interception mechanism includes a flow interception groove (104), a flow interception plate (105), two force plates (108), and two springs (107). The flow interception groove (104) is opened at one end of the housing (1). The flow interception plate (105) is slidably connected in the flow interception groove (104). The two force plates (108) are respectively fixedly connected to the upper and lower ends of the flow interception plate (105). The two springs (107) are respectively fixedly connected to one end of the two force plates (108) and one end of the housing (1). A handle (109) is fixedly connected to one end of the flow interception plate (105). An anti-slip sleeve (110) is fixedly connected to the circumferential surface of the handle (109). The pushing mechanism consists of a third motor (5), a lead screw (501), a lead screw nut (503), a pushing plate (502), and a pushing groove. The pushing groove is opened at one end of the transmission shell (202). The third motor (5) is located on one side of the transmission shell (202). The lead screw nut (503) is threaded to the circumferential surface of the lead screw (501). The lead screw (501) is rotatably connected to one end of the transmission shell (202), and the lead screw (501) and the output end of the third motor (5) are fixedly connected. The pushing plate (502) is fixedly connected to the upper end of the lead screw nut (503) and is slidably connected in the pushing groove. The collecting mechanism consists of a feeding trough (406), a collecting shell (4), a filter screen (405), a guide plate (402), and a polymer shell (403). The polymer shell (403) is fixedly connected to both ends of the transmission shell (202). The guide plate (402) is fixedly connected to the inner walls of both sides of the transmission shell (202). The feeding trough (406) is opened at one end of the transmission shell (202). The collecting shell (4) is fixedly connected to one end of the transmission shell (202). The filter screen (405) is fixedly connected inside the collecting shell (4). When the pusher plate (502) moves in the pusher trough, it pushes larger pieces of gangue, while smaller pieces of coal are pushed less.

2. The dry coal preparation device according to claim 1, characterized in that, The system further includes a pressure detection mechanism. Each pressure detection mechanism consists of an assembly plate (203), two half gears (204), a pressing rod (207), two racks (210), a second motor (208), a pressing groove, and a crushing plate (209). The assembly plate (203) is fixedly connected to the upper end of the transmission shell (202), and the two half gears (204) are rotatably connected to one end of the assembly plate (203) via a rotating rod.

3. The dry coal preparation device according to claim 2, characterized in that, The pressing groove is located at the upper end of the transmission shell (202), the pressing rod (207) is slidably connected in the pressing groove, and the two racks (210) are respectively fixedly connected to the two ends of the pressing rod (207).

4. A dry coal preparation device according to claim 3, characterized in that, Two racks (210) intermittently mesh with two half gears (204), the crushing plate (209) is fixedly connected to the lower end of the pressing rod (207), the second motor (208) is fixedly connected to one end of the assembly plate (203), and one of the output shafts of the second motor (208) is fixedly connected to one of the rotating rods.

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