Shale sample pulverization experimental device

Abstract

The application discloses a shale sample crushing experimental device, which comprises a reaction kettle, a protective cover arranged on the top of the reaction kettle, a shell of the protective cover, a feeding port of the shell, a crushing mechanism arranged in the shell, and a fixed grinding part, a movable grinding part, a crushing motor, a crushing transmission mechanism and a pre-pressing part of the crushing mechanism; the fixed grinding part has a first grinding surface; the movable grinding part is connected with the crushing transmission mechanism and has a second grinding surface; the crushing motor transmits torque to the movable grinding part through the crushing transmission mechanism, drives the movable grinding part to rotate in the shell, and the pre-pressing part is used for applying an acting force to the movable grinding part to make the movable grinding part close to the fixed grinding part; when the crushing motor is started, the movable grinding part is jointly acted on by the crushing motor and the pre-pressing part, and the second grinding surface cooperates with the first grinding surface. The rock sample can be effectively broken and processed, and the size of shale particles obtained is more uniform and consistent.

Description

Technical Field

[0001] This invention relates to the field of shale oil experimental equipment technology, and in particular to a shale sample crushing experimental device. Background Technology

[0002] Shale oil refers to petroleum resources contained in shale formations rich in organic matter. It is a brownish, viscous liquid product with a distinctive pungent odor, obtained by dry distillation of oil shale. Currently, shale oil, as an unconventional oil and gas resource, has enormous potential and significant strategic importance.

[0003] Existing shale oil reservoirs are characterized by low porosity, low permeability, and dense rock. To develop and tap the potential of shale oil, development experiments are necessary. Currently, there are no standardized grinding methods for shale development experiments; instead, crushing and screening are commonly used to select shale particles of suitable size. This approach wastes some sample and results in highly random particle sizes. Particle size, to a certain extent, represents specific surface area, pore size, and adsorption capacity, which significantly impacts subsequent development experiments.

[0004] Therefore, it is necessary to propose a shale sample crushing experimental device to solve at least one of the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a shale sample crushing experimental device that can effectively crush rock samples, ensuring that the obtained shale particles are more uniform in size.

[0006] The specific technical solution of the embodiments of the present invention is as follows:

[0007] A shale sample crushing experimental apparatus, the shale sample crushing experimental apparatus comprising:

[0008] A reaction vessel is provided with a protective cover on its top. The protective cover includes a hollow shell with a feed inlet. A pulverizing mechanism is located inside the shell, comprising a fixed grinding component, a movable grinding component, a pulverizing motor, a pulverizing transmission mechanism, and a pre-compression component. The fixed grinding component is fixedly connected to the side wall of the shell and has a first grinding surface. The movable grinding component has a second grinding surface. The pulverizing motor, the pulverizing transmission mechanism, and the movable grinding component are sequentially connected and driven. The pulverizing motor transmits torque to the movable grinding component through the pulverizing transmission mechanism, causing the movable grinding component to rotate within the shell. The pre-compression component is located on the side of the movable grinding component away from the second grinding surface and applies a force to the movable grinding component, bringing it closer to the fixed grinding component. When the pulverizing motor starts, the movable grinding component, under the combined action of the pulverizing motor and the pre-compression component, causes the second grinding surface to engage with the first grinding surface, pulverizing the shale sample entering from the feed inlet.

[0009] In a preferred embodiment, the crushing transmission mechanism includes a transmission belt and a rotating drum. One side of the movable grinding plate is detachably mounted on the rotating drum. The crushing motor drives the rotating drum to rotate via the transmission belt. While the rotating drum rotates, the movable grinding plate can be squeezed towards the side of the fixed grinding plate through the pre-compression member.

[0010] In a preferred embodiment, there are two crushing motors and two transmission belts, namely a first crushing motor and a first transmission belt that cooperate with each other, and a second crushing motor and a second transmission belt that cooperate with each other. The first crushing motor and the first transmission belt are located at one end of the rotating drum, and the second crushing motor and the second transmission belt are located at the other end of the rotating drum.

[0011] In a preferred embodiment, the pre-compression member is a spring initially in a compressed state, and the side of the spring away from the movable grinding plate is fixedly connected to the inside of the protective cover.

[0012] In a preferred embodiment, the crushing mechanism further includes: a crushing gear, the crushing gear having a rotating shaft at its center, the rotating shaft being rotatably connected to the top wall of the housing; a toothed plate, the toothed plate meshing with the crushing gear, the toothed plate having opposite free ends and end ends along its longitudinal direction; a hydraulic rod, the hydraulic rod being connected to the end of the toothed plate, the toothed plate being fixedly connected to the crushing motor, and when the hydraulic rod drives the toothed plate to move, the toothed plate can drive the crushing motor to move, thereby driving the movable grinding part to move in a plane.

[0013] In a preferred embodiment, the number of the crushing motor and the transmission belt are two, and the number of the toothed plate and the hydraulic rod are also two.

[0014] In a preferred embodiment, a filtration mechanism is disposed inside the reactor below the pulverizing mechanism. The filtration mechanism includes a filter screen, a first motor, and a filtration transmission mechanism. The filter screen is movably disposed inside the reactor. The first motor is used to drive the filtration transmission mechanism to rotate the filter screen.

[0015] In a preferred embodiment, the filter transmission mechanism includes: a first belt, a sliding disc, a rocker arm, and a connecting frame. One side of the first belt is connected to the first motor, and the other side is connected to the sliding disc. The sliding disc is generally disc-shaped, and a circular groove is provided on the side of the sliding disc away from the filter screen. The sliding disc is located on the side of the first belt away from the first motor. One end of the rocker arm extends into the sliding groove and is connected to the sliding disc, and the side of the rocker arm away from the sliding disc is fixedly connected to the connecting frame. The connecting frame is connected to the filter screen. When the first motor starts, the driving force of the first motor can be transmitted to the connecting frame through the first belt, the sliding disc, and the rocker arm, and the connecting frame then drives the filter screen to move.

[0016] In a preferred embodiment, the connecting frame includes: a ring-shaped frame, two longitudinal beams symmetrically arranged on the frame, one end of each longitudinal beam fixed to the frame and the other end extending upward away from the frame, and a crossbeam connected to the other ends of the two longitudinal beams, with the swing rod connected to the crossbeam; an arc-shaped sliding block is fixed on the inner wall of the reactor, and an arc-shaped groove is provided in the sliding block, with the longitudinal beam passing through the groove. When the first motor is started, the driving force of the first motor can be transmitted to the connecting frame through the first belt, the groove plate, and the swing rod. Under the constraint of the groove of the sliding block, the connecting frame drives the filter screen to reciprocate around the crossbeam.

[0017] In a preferred embodiment, the middle of the crossbeam is further provided with an extension member in the direction close to the inner wall of the reactor, and the extension member can come into contact with the shale sample on the filter screen when the filter screen swings back and forth.

[0018] In a preferred embodiment, the filter screen includes a filter body and a mounting sleeve surrounding the filter body, the mounting sleeve having a mounting groove, and the connecting frame being installed within the mounting groove.

[0019] In a preferred embodiment, a second motor is further provided below the connecting frame. A first gear is rotatably connected to the output shaft end of the second motor. A sweeping rod is fixedly connected to the side of the first gear away from the second motor. A gear ring meshes with one side of the first gear, and the gear ring is fixedly connected to the connecting frame.

[0020] In a preferred embodiment, when the second motor is started, the second motor drives the first gear to rotate. When the first gear rotates, it drives the gear ring and the sweeping rod to rotate. The meshing overlap between the first gear and the gear ring is greater than 1.8. The sweeping rod can make a circular motion around the connecting frame while rotating.

[0021] In a preferred embodiment, the outer diameter of the toothed ring is the same as the outer diameter of the filter screen, the toothed ring is located on the mounting sleeve of the filter screen, the outer diameter of the connecting frame is larger than the outer diameters of the toothed ring and the filter screen, and the outer diameter of the connecting frame is the same as the inner diameter of the reactor.

[0022] In a preferred embodiment, the second motor is connected to the swing arm.

[0023] In a preferred embodiment, the shale sample crushing experimental apparatus further includes a base and a support frame disposed on the top of the base. The reaction vessel is installed inside the support frame. A heating device is disposed at the bottom of the interior of the reaction vessel. A flow pipe is fixedly connected to one side of the reaction vessel, and a fluid device is fixedly connected to the side of the flow pipe away from the reaction vessel.

[0024] The technical solution of the present invention has the following significant beneficial effects:

[0025] In the proposed embodiment, a crushing mechanism is installed inside the protective cover of the reactor. During use, a shale sample is poured into the reactor through the feed inlet of the protective cover. During the pouring process, the crushing motors on both sides inside the protective cover operate synchronously. Driven by the crushing motors, the transmission belt also starts to run. The operation of the transmission belt drives the rotation of the drum, which in turn drives the movable grinding component. Under the action of the pre-compression component (e.g., a spring), the movable grinding component can move towards the fixed grinding component, thereby enabling the movable grinding component to cooperate with the fixed grinding component to more effectively crush the poured shale sample, thus ensuring that the size of the shale sample is more uniform.

[0026] Specific embodiments of the invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the invention are not therefore limited in scope. Within the spirit and scope of the appended claims, embodiments of the invention include many changes, modifications, and equivalents. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Attached Figure Description

[0027] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0028] Figure 1 This is a schematic diagram of the structure of a shale sample crushing experimental device provided in the embodiments of this application;

[0029] Figure 2 This is a schematic diagram of the front section of the reaction vessel of a shale sample crushing experimental device provided in the embodiments of this application;

[0030] Figure 3 This is an exploded view of the reaction vessel of a shale sample crushing experimental apparatus provided in the embodiments of this application;

[0031] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0032] Figure 5 This is an exploded view of the protective plate of a shale sample crushing experimental device provided in the embodiments of this application;

[0033] Figure 6 for Figure 5 Enlarged view of section B in the middle.

[0034] Reference numerals in the figures of this application:

[0035] 1. Base;

[0036] 2. Support frame;

[0037] 3. Reactor;

[0038] 4. Heating equipment;

[0039] 5. Flow tube;

[0040] 6. Fluid apparatus;

[0041] 7. Filter screen;

[0042] 8. Connecting frame;

[0043] 80. Frame;

[0044] 81. Longitudinal beam;

[0045] 82. Crossbeam;

[0046] 83. Sliding block;

[0047] 84. Extension parts;

[0048] 9. First motor;

[0049] 10. First belt;

[0050] 11. Slide tray;

[0051] 12. Pendulum arm;

[0052] 13. Second motor;

[0053] 14. First gear;

[0054] 15. Broom handle;

[0055] 16. Gear ring;

[0056] 17. Protective cover;

[0057] 18. Fixed grinding parts;

[0058] 19. Crushing motor;

[0059] 20. Transmission belt;

[0060] 21. Rotating drum;

[0061] 22. Moving grinding parts;

[0062] 23. Crushing gear;

[0063] 24. Toothed plate;

[0064] 25. Hydraulic rod;

[0065] 26. Spring;

[0066] 27. Imported pipelines. Detailed Implementation

[0067] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art fall within the scope defined by the appended claims.

[0068] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0069] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0070] This invention provides a shale sample crushing experimental device that can effectively crush rock samples and ensure that the obtained shale particles are more uniform in size.

[0071] Please refer to the following for comprehensive information. Figures 1 to 6This application specification provides a shale sample crushing experimental device, which may include: a reaction vessel 3, an inlet pipe 27 at the top of the reaction vessel 3, a protective cover 17 on the side of the inlet pipe 27 away from the reaction vessel 3, the protective cover 17 including a hollow shell, a feed inlet on the shell, and a crushing mechanism inside the shell, the crushing mechanism including: a fixed grinding component 18, a movable grinding component 22, a crushing motor 19, a crushing transmission mechanism, and a pre-compression component; the fixed grinding component 18 is fixedly connected to the side wall of the shell, and the fixed grinding component 18 has a first grinding surface; the movable grinding component 22 is detachably connected to the crushing transmission mechanism, and the movable grinding component 22... The movable grinding element 22 has a second grinding surface; the crushing motor 19, the crushing transmission mechanism, and the movable grinding element 22 are sequentially connected by transmission. The crushing motor 19 transmits torque to the movable grinding element 22 through the crushing transmission mechanism, causing the movable grinding element 22 to rotate within the housing. The pre-compression component is located on the side of the movable grinding element 22 away from the second grinding surface, and is used to apply a force to the movable grinding element 22 to move it closer to the fixed grinding element 18. When the crushing motor 19 is started, the movable grinding element 22, under the combined action of the crushing motor 19 and the pre-compression component, has its second grinding surface cooperating with its first grinding surface to crush the shale sample entering from the feed inlet.

[0072] In this embodiment, the shale sample crushing experimental device may mainly include a reaction vessel 3, a protective cover 17 installed on the reaction vessel 3, and a crushing mechanism and other components located inside the protective cover 17.

[0073] The reactor 3 can be a hollow shell structure, and its material can be stainless steel. When the reactor 3 is made of stainless steel, this material can resist various corrosive substances that may appear during shale oil development. This corrosion-resistant property ensures that the reactor 3 is not easily corroded and damaged during the experiment, thereby extending its service life. Through this design, the reactor 3 can not only withstand harsh working environments, but also ensure the accuracy and reliability of the experiment.

[0074] Of course, the specific material of the reactor 3 can also be other corrosion-resistant materials, and is not limited to the above description. Those skilled in the art may make other changes under the inspiration of the technical essence of this application, but as long as the function and effect achieved are the same as or similar to this application, they should be covered within the protection scope of this application.

[0075] like Figure 2As shown, an inlet pipe 27 is fixedly connected to the top of the reactor 3. The inlet pipe 27 has a lower port and an upper port. The lower port is fixed to the top of the reactor 3, and a protective cover 17 can be fixedly connected to the upper port (i.e., the side away from the reactor 3).

[0076] The protective cover 17 can be a hollow shell, which covers the upper port of the inlet pipe 27. A feed inlet can be provided on the upper surface of the shell, and a crushing mechanism is provided inside the shell. Along the direction of gravity, the crushing mechanism is located downstream of the feed inlet, allowing the shale sample flowing in from the feed inlet to enter and be crushed by the crushing mechanism.

[0077] like Figure 5 and Figure 6 As shown, the pulverizing mechanism may include: a fixed grinding component 18, a movable grinding component 22, a pulverizing motor 19, a pulverizing transmission mechanism, and a pre-compression component. The pulverizing motor 19, the pulverizing transmission mechanism, and the movable grinding component 22 are sequentially connected in a transmission manner.

[0078] The fixed grinding element 18 is fixedly connected to the side wall of the housing, and the fixed grinding element 18 has a first grinding surface. The fixed grinding element can be integrally plate-shaped, for example, it can be a plate structure with a certain thickness. The fixed grinding element 18 has opposing first and second surfaces along the thickness direction, wherein the first surface can be the first grinding surface. The first grinding surface has a high roughness, thereby ensuring a better grinding effect. Specifically, first grinding teeth can be provided on the first grinding surface. The second surface can be fixed to the inner side wall of the housing. Overall, the fixed grinding element 18 can extend towards the side wall of the housing.

[0079] The movable grinding element 22 is detachably connected to the crushing transmission mechanism, and the movable grinding element 22 has a second grinding surface. Specifically, the structure of the movable grinding element 22 is similar to that of the fixed grinding element. The movable grinding element 22 can be integrally plate-shaped, for example, it can be a plate structure with a certain thickness. The movable grinding element 22 has opposing third and fourth surfaces along the thickness direction, wherein the third surface can be the second grinding surface. The second grinding surface has a high roughness, thereby ensuring a better grinding effect. Specifically, a second grinding tooth can be provided on the second grinding surface. The first grinding tooth and the second grinding tooth are adapted to provide the shear force required for crushing the shale sample.

[0080] The pulverizing motor 19 transmits torque to the movable grinding element 22 through the pulverizing transmission mechanism, thereby driving the movable grinding element 22 to rotate within the housing.

[0081] Specifically, the crushing transmission mechanism may include a transmission belt 20 and a rotating drum 21. One side of the movable grinding member 22 is detachably mounted on the rotating drum 21. The crushing motor 19 drives the rotating drum 21 to rotate via the transmission belt 20. As the rotating drum 21 rotates, the movable grinding plate can be squeezed towards the fixed grinding plate via the pre-compression member.

[0082] The pre-compression component is disposed on the side of the movable grinding component 22 away from the second grinding surface, and is used to apply a force to the movable grinding component 22 to bring it closer to the fixed grinding component 18.

[0083] Specifically, the pre-compression component can be a spring 26 in an initial compressed state. The side of the spring 26 away from the movable grinding plate is fixedly connected to the inside of the cover 17, and the other side abuts against the fourth surface of the movable grinding component 22. The pre-compression component (spring 26) can provide the extrusion force required to crush the shale sample.

[0084] When the crushing motor 19 is started, the movable grinding element 22, under the combined action of the crushing motor 19 and the pre-compression element, uses the second grinding surface to cooperate with the first grinding surface to crush the shale sample entering from the feed inlet. The grinding process requires the simultaneous presence of extrusion and shearing forces. The combined action of these two forces can effectively crush the shale sample and spread it evenly on the surface of the grinding plate, achieving the purpose of thorough grinding.

[0085] In the proposed embodiment, shale samples are poured into the reactor 3 through the feed inlet of the protective cover 17. During the pouring process, the crushing motor 19 inside the protective cover 17 operates. Driven by the crushing motor 19, the transmission belts 20 on both sides also start to operate. The operation of the transmission belts 20 drives the rotation of the rotating drum 21. The rotation of the rotating drum 21 further drives the movable grinding component 22. Under the action of the pre-compression component (e.g., spring 26), the movable grinding component 22 can move towards the fixed grinding component 18, thereby enabling the movable grinding component 22 to cooperate with the fixed grinding component 18 to more effectively crush the poured shale samples, thus ensuring that the size of the shale samples is more uniform.

[0086] In one embodiment, there are two crushing motors 19 and two transmission belts 20, namely a first crushing motor 19 and a first transmission belt 20 that cooperate with each other, and a second crushing motor 19 and a second transmission belt 20 that cooperate with each other. The first crushing motor 19 and the first transmission belt 20 are disposed at one end of the rotating drum 21, and the second crushing motor 19 and the second transmission belt 20 are disposed at the other end of the rotating drum 21.

[0087] Specifically, the rotating drum 21 can be a cylindrical structure extending along the longitudinal direction, and the rotating drum 21 can be connected to the upper side of the movable grinding part 22.

[0088] When there are two crushing motors 19 and two transmission belts 20, one set consists of a first crushing motor 19 and a first transmission belt 20, located at one end of the rotating drum 21, and the other set consists of a second crushing motor 19 and a second transmission belt 20, located at the other end of the rotating drum 21. During operation, the two crushing motors 19 can start synchronously, ensuring that the rotating drum 21 is evenly stressed and smoothly drives the movable grinding component 22 to rotate. Furthermore, when there are two sets of crushing motors 19 and transmission belts 20, even if one crushing motor 19 fails and cannot provide driving force, the rotating drum 21 can still operate normally and smoothly using only one crushing motor 19, thus improving grinding efficiency and stability.

[0089] In one embodiment, the crushing mechanism may further include: a crushing gear 23, the crushing gear 23 having a rotating shaft at its center, the rotating shaft being rotatably connected to the top wall of the housing; a toothed plate 24, the toothed plate 24 meshing with the crushing gear 23, the toothed plate 24 having opposite free ends and end ends along its longitudinal direction; a hydraulic rod 25, the hydraulic rod 25 being connected to the end of the toothed plate 24, the toothed plate 24 being fixedly connected to the crushing motor 19, when the hydraulic rod 25 drives the toothed plate 24 to move, the toothed plate 24 can drive the crushing motor 19 to move, thereby driving the movable grinding part 22 to move in a plane.

[0090] In this embodiment, a rotatably connected crushing gear 23 and toothed plate 24 are also provided at the top inside the protective cover 17. By providing the crushing gear 23, the meshing toothed plate 24 can move flexibly. The movement of the toothed plate 24 drives the crushing motor 19 to move, thereby causing the movable grinding component 22 to move in a planar direction. Specifically, the planar movement of the movable grinding component 22 refers to its movement along the axial direction of the rotating drum 21. With the cooperation of the spring 26, the movable grinding plate moves in three dimensions, effectively adding a shearing force in another direction to the shale sample crushing operation, thus achieving a more efficient and uniform crushing effect.

[0091] In one specific embodiment, the number of the crushing motor 19 and the transmission belt 20 are two, and the number of the toothed plate 24 and the hydraulic rod 25 are also two.

[0092] In this embodiment, a hydraulic rod 25 is fixedly connected to the side of the toothed plate 24 away from the crushing gear 23. The hydraulic rod 25 provides the drive, enabling the toothed plate 24 to move more smoothly and powerfully. Furthermore, there can be two toothed plates 24 and two hydraulic rods 25. This design ensures that the toothed plates 24 on both sides can be activated as needed, and the toothed plates 24 can drive the crushing motor 19 to move, thereby driving the movable grinding part 22 to move. At the same time, the activation of the crushing motor 19 will drive the transmission belt 20 to rotate, driving the rotating drum 21 to rotate the movable grinding plate. Overall, this allows the crushing mechanism to more effectively crush shale samples.

[0093] like Figure 3 and Figure 4 As shown, in one embodiment, a filtration mechanism is disposed inside the reactor 3 below the pulverizing mechanism. The filtration mechanism includes a filter screen 7, a first motor 9, and a filtration transmission mechanism. The filter screen 7 is movably disposed inside the reactor 3. The first motor 9 is used to drive the filtration transmission mechanism to rotate the filter screen 7.

[0094] In this embodiment, the reactor 3 is also equipped with a filter screen 7, a first motor 9, and a filter transmission mechanism.

[0095] Specifically, the filter transmission mechanism may include: a first belt 10, a sliding disc 11, a swing rod 12, and a connecting frame 8. One side of the first belt 10 is connected to the first motor 9, and the other side is connected to the sliding disc 11. The sliding disc 11 is generally disc-shaped, and a circular groove is provided on the side of the sliding disc 11 away from the filter screen 7. The sliding disc 11 is located on the side of the first belt 10 away from the first motor 9. One end of the swing rod 12 extends into the sliding groove and is connected to the sliding disc 11, and the side of the swing rod 12 away from the sliding disc 11 is fixedly connected to the connecting frame 8. The connecting frame 8 is connected to the filter screen 7.

[0096] When the first motor 9 is started, the driving force of the first motor 9 can be transmitted to the connecting frame 8 through the first belt 10, the sliding plate 11 and the swing rod 12, and the connecting frame 8 then drives the filter screen 7 to move.

[0097] Specifically, after being crushed, the shale sample is driven by the first motor 9, which drives the first belt 10 to rotate. The rotation of the first belt 10 causes the chute 11 on one side to rotate as well. The rotation of the chute 11 is synchronized with the swing rod 12, which in turn drives the connecting frame 8 to move. The connecting frame 8 then drives the filter screen 7 to effectively filter the shale sample inside the reactor 3.

[0098] Shale samples contain not only shale particles but also mineral particles, which are difficult to grind and are considered impurities. Because the filter screen is rotating, impurity particles will not remain fixed at any particular opening. Therefore, in this embodiment, the ingenious design of the above structure effectively prevents impurities in the shale sample from clogging the openings of the filter screen 7, ensuring a smooth filtration process.

[0099] In one specific embodiment, the connecting frame 8 may include: a ring-shaped frame 80, two longitudinal beams 81 symmetrically arranged on the frame 80, one end of each longitudinal beam 81 fixed to the frame 80, the other end extending upward away from the frame 80, and a crossbeam 82 connected to the other ends of the two longitudinal beams 81, the swing rod 12 being connected to the crossbeam 82; an arc-shaped sliding block 83 is fixed on the inner wall of the reactor 3, the sliding block 83 is provided with an arc-shaped sliding groove, and the longitudinal beam 81 passes through the sliding groove.

[0100] When the first motor 9 is started, the driving force of the first motor 9 can be transmitted to the connecting frame 8 through the first belt 10, the sliding plate 11 and the swing rod 12. Under the constraint of the sliding block 83, the connecting frame 8 drives the filter screen 7 to swing back and forth around the crossbeam 82, which is equivalent to vibrating the filter screen 7 in the front and back directions. In this way, not only can the filtration efficiency of the shale sample after it is broken on the filter screen 7 be further improved, but also the shale sample can be more uniformly and fully processed inside the reactor 3, thereby providing more favorable experimental conditions for the development of shale oil.

[0101] Furthermore, an extension 84 is provided in the middle of the crossbeam 82 towards the inner wall of the reactor 3. When the filter screen 7 swings back and forth, the extension 84 can come into contact with the shale sample on the filter screen 7 and apply force to the shale sample, so that it can pass through the filter screen 7 more efficiently and achieve filtration.

[0102] The specific structure of the extension 84 can be as follows: Figure 3 The structure shown includes a first connecting plate connected to the crossbeam 82, a second connecting plate and a third connecting plate arranged parallel to the filter screen 7, and a fourth connecting plate connected between the second connecting plate and the third connecting plate. One end of the first connecting plate is connected to the middle of the crossbeam 82, and the other end is connected to the second connecting plate.

[0103] In one embodiment, the filter screen 7 includes a filter body and a mounting sleeve surrounding the filter body, the mounting sleeve having a mounting groove, and the connecting frame 8 being installed in the mounting groove.

[0104] In this embodiment, an installation sleeve may be provided around the filter body of the filter screen 7. The installation sleeve may be provided with an installation groove. The filter screen 7 is detachably connected to the connecting frame 8 through the installation sleeve. When the filter body needs to be replaced, the filter screen 7 can be easily disassembled from the connecting frame 8 for replacement.

[0105] In one embodiment, a second motor 13 may be provided below the connecting frame 8. The output shaft of the second motor 13 is rotatably connected to a first gear 14. A sweeping rod 15 is fixedly connected to the side of the first gear 14 away from the second motor 13. A gear ring 16 meshes with one side of the first gear 14. The gear ring 16 is fixedly connected to the connecting frame 8.

[0106] In this embodiment, a second motor 13 is provided below the connecting frame 8. The second motor 13 can effectively drive the first gear 14 to rotate. When the first gear 14 rotates, it can not only drive the sweeping bar 15 located at the bottom to scrape off dirt, but also effectively clean the surface of the filter screen 7. This design ensures that the filter screen 7 will not be clogged due to dirt accumulation, thereby maintaining the stability and reliability of the filtration effect.

[0107] Furthermore, when the second motor 13 is started, the second motor 13 drives the first gear 14 to rotate. When the first gear 14 rotates, it drives the gear ring 16 and the sweeping rod 15 to rotate. The meshing overlap between the first gear 14 and the gear ring 16 is greater than 1.8. The sweeping rod 15 can make a circular motion around the connecting frame 8 while rotating.

[0108] In this embodiment, the first gear 14 and the gear ring 16 are precisely meshed. This meshing method allows the sweeping rod 15 to rotate while also moving in a circular motion around the connecting frame 8. This dual motion mode greatly improves cleaning efficiency, ensures the cleanliness of the filter screen 7 surface, and further prevents the filter screen 7 from becoming clogged.

[0109] In one embodiment, the outer diameters of the filter screen 7, the connecting frame 8, and the toothed ring 16 are adapted to the inner diameter of the reactor 3.

[0110] In this embodiment, the outer diameter of the filter screen 7, the connecting frame 8, and the toothed ring 16 being adapted to the inner diameter of the reactor 3 mainly means that the connecting frame 8 can drive the filter screen 7 to swing back and forth in the reactor 3 without relative interference, while also ensuring that the broken shale sample falling from above can fall onto the filter screen 7 as much as possible.

[0111] Specifically, the outer diameter of the toothed ring 16 is the same as the outer diameter of the filter screen 7, the toothed ring 16 is located on the mounting sleeve of the filter screen 7, the outer diameter of the connecting frame 8 is larger than the outer diameters of the toothed ring 16 and the filter screen 7, and the outer diameter of the connecting frame 8 is the same as the inner diameter of the reactor 3.

[0112] In this embodiment, the toothed ring 16 can be located on the mounting sleeve of the filter screen 7, and the outer diameter of the toothed ring 16 can be the same as or close to the outer diameter of the mounting sleeve of the filter screen 7. The connecting frame 8 is sleeved on the outside of the mounting sleeve, and the outer diameter of the connecting frame is larger than the outer diameter of the mounting sleeve.

[0113] The outer diameter of the connecting frame 8 can be the same as the inner diameter of the reactor 3. This ensures that the connecting frame 8 can drive the filter screen 7 to swing back and forth slightly without interference, while the shale samples falling from above can also fall into the filter screen 7. The maximum swing amplitude of the connecting frame 8 driving the filter screen 7 can be determined based on the arc length of the aforementioned chute. This specific value is not the only limitation in this application.

[0114] In one embodiment, the second motor 13 is connected to the swing arm 12. When the second motor 13 is connected to the swing arm 12, especially when the gear ring 16 is installed on the mounting sleeve of the filter screen 7, the sweeping rod 15 can also follow the filter screen 7 to swing synchronously in space, which is equivalent to enabling the sweeping rod 15 to perform three movements at the same time, thereby further ensuring the cleanliness of the surface of the filter screen 7 and preventing the filter screen 7 from becoming clogged.

[0115] like Figure 1 As shown, in one embodiment, the shale sample crushing experimental device may further include a base 1 and a support frame 2 disposed on the top of the base 1. The reaction vessel 3 is installed inside the support frame 2. A heating device 4 is disposed at the bottom inside the reaction vessel 3. A flow pipe 5 is fixedly connected to one side of the reaction vessel 3. A fluid device 6 is fixedly connected to the side of the flow pipe 5 away from the reaction vessel 3.

[0116] In this embodiment, a heating device 4 is installed inside the reactor 3. This device can be activated to effectively heat the interior of the reactor 3, ensuring it reaches the preset experimental temperature conditions and simulating the specific temperature environment necessary for shale oil development. Simultaneously, a flow pipe 5 is fixedly connected to one side of the reactor 3, and the other end of this pipe is connected to a fluid device 6. This fluid device 6, connected to the reactor 3 via the flow pipe 5, allows for the injection or extraction of fluid into or from the reactor 3 according to experimental requirements. This facilitates the adjustment of key conditions such as pressure and temperature within the reactor 3, effectively promoting the shale oil development reaction process.

[0117] In a specific implementation scenario, the working principle and usage process of this invention are as follows:

[0118] First, the shale sample is poured into the reactor 3 from the protective cover 17. During the pouring process, the hydraulic rod 25 inside the protective cover 17 drives the toothed plate 24. The toothed plate 24, through the precise engagement of the crushing gear 23, can effectively drive the crushing motor 19 to move. In addition, after receiving a signal, the crushing motor 19 will start and operate synchronously, thereby driving the transmission belts 20 on both sides. The transmission belts 20 start to rotate under the drive of the crushing motor 19, thereby driving the rotation of the rotating drum 21. The rotation of the rotating drum 21 can cause the movable grinding part 22 to start working. Under the action of the spring 26, the movable grinding part 22 will move towards the fixed grinding part 18, thereby performing a more detailed and uniform crushing process on the poured shale sample, ensuring that the shale sample is of uniform size and avoiding the impact of sample size on the accuracy of subsequent experiments.

[0119] After being thoroughly crushed, the shale sample falls onto the filter screen 7. At this time, the first motor 9 starts, driving the first belt 10, which in turn drives the sliding plate 11 on one side. As the sliding plate 11 rotates, it drives the matching swing rod 12 to rotate synchronously, thereby moving the connecting frame 8. Driven by the swing rod 12, the connecting frame 8 drives the filter screen 7 to perform effective filtration inside the reactor 3, thus ensuring that impurities in the shale sample can be effectively filtered and preventing clogging of the mesh openings on the filter screen 7.

[0120] To further ensure the filtration effect, a second motor 13 is also provided on the bottom side of the connecting frame 8. After the second motor 13 is started, it will drive the first gear 14 to rotate. The rotation of the first gear 14 can not only drive the bottom sweeping rod 15 to scrape off the filter screen 7, but also mesh with the gear ring 16, so that the sweeping rod 15 rotates around the connecting frame 8 while rotating, thereby cleaning the surface of the filter screen 7, preventing the filter screen 7 from clogging, and thus ensuring the continuity and effectiveness of the filtration effect.

[0121] Finally, to simulate the temperature environment during shale oil development, a heating device 4 is installed at the bottom of the reactor 3. The heating device 4 heats the interior of the reactor 3 to the preset experimental temperature. Furthermore, one side of the reactor 3 is connected to a fluid device 6 via a flow pipe 5. The fluid device 6 can inject or extract fluid into the reactor 3 according to the specific needs of the experiment, thereby adjusting the pressure, temperature, and other conditions inside the reactor 3 to promote the shale oil development reaction and ensure that the experiment is conducted under conditions closest to the actual development environment.

[0122] It should be noted that in the description of this application, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more.

[0123] The various embodiments described in this specification are presented in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0124] The above are merely a few embodiments of the present invention. Although the embodiments disclosed in the present invention are as described above, the content is only for the purpose of facilitating understanding of the present invention and is not intended to limit the present invention. Any person skilled in the art to which this invention pertains may make any modifications and changes in the form and details of the embodiments without departing from the spirit and scope disclosed in the present invention. However, the patent protection scope of the present invention shall still be determined by the scope defined in the appended claims.

Claims

1. A shale sample crushing experimental apparatus, characterized in that, The shale sample crushing experimental device includes: a reaction vessel, the top of which is equipped with a protective cover, the protective cover including a hollow shell, the shell having a feed inlet, and a crushing mechanism inside the shell, the crushing mechanism including: a fixed grinding component, a movable grinding component, a crushing motor, a crushing transmission mechanism, and a pre-compression component; The fixed grinding element is fixedly connected to the side wall of the housing, and the fixed grinding element has a first grinding surface; The movable grinding element has a second grinding surface; The pulverizing motor, the pulverizing transmission mechanism, and the movable grinding element are sequentially connected by a transmission mechanism. The pulverizing motor transmits torque to the movable grinding element through the pulverizing transmission mechanism, causing the movable grinding element to rotate within the housing. The pre-compression component is disposed on the side of the movable grinding component away from the second grinding surface, and is used to apply a force to the movable grinding component to bring it closer to the fixed grinding component. When the crushing motor is started, the movable grinding component, under the combined action of the crushing motor and the pre-compression component, makes the second grinding surface cooperate with the first grinding surface to crush the shale sample entering from the feed inlet.

2. The shale sample crushing experimental apparatus as described in claim 1, characterized in that, The crushing transmission mechanism includes a transmission belt and a rotating drum. One side of the movable grinding component is detachably mounted on the rotating drum. The crushing motor drives the rotating drum to rotate via the transmission belt. While the rotating drum rotates, the movable grinding plate can be squeezed towards the fixed grinding plate via the pre-compression component.

3. The shale sample crushing experimental apparatus as described in claim 2, characterized in that, The number of the crushing motor and the transmission belt are two, namely a first crushing motor and a first transmission belt that cooperate with each other, and a second crushing motor and a second transmission belt that cooperate with each other. The first crushing motor and the first transmission belt are located at one end of the rotating drum, and the second crushing motor and the second transmission belt are located at the other end of the rotating drum.

4. The shale sample crushing experimental apparatus as described in claim 2, characterized in that, The pre-compression component is a spring that is initially compressed, and the side of the spring away from the movable grinding plate is fixedly connected to the inside of the protective cover.

5. The shale sample crushing experimental apparatus as described in claim 3, characterized in that, The crushing mechanism also includes: A crushing gear, wherein a rotating shaft is provided in the middle of the crushing gear, and the rotating shaft is rotatably connected to the top wall of the housing; The toothed plates mesh with the crushing gears, and the toothed plates have opposite free ends and end ends along the longitudinal direction; A hydraulic rod, which is connected to the end of the toothed plate. The toothed plate is fixedly connected to the crushing motor. When the hydraulic rod drives the toothed plate to move, the toothed plate can drive the crushing motor to move, thereby driving the movable grinding part to move in a plane.

6. The shale sample crushing experimental apparatus as described in claim 5, characterized in that, The number of the crushing motor and the transmission belt are two, and the number of the toothed plate and the hydraulic rod are also two.

7. The shale sample crushing experimental apparatus as described in claim 1, characterized in that, The reactor contains a filtration mechanism located below the pulverizing mechanism. The filtration mechanism includes a filter screen, a first motor, and a filtration transmission mechanism. The filter screen is movably disposed inside the reaction vessel; the first motor is used to drive the filter transmission mechanism to rotate the filter screen.

8. The shale sample crushing experimental apparatus as described in claim 7, characterized in that, The filter transmission mechanism includes: a first belt, a sliding disc, a swing rod, and a connecting frame. One side of the first belt is connected to the first motor drive, and the other side is connected to the slide plate drive. The slide plate is generally disc-shaped, and a circular groove is provided on the side of the slide plate away from the filter screen. The slide plate is located on the side of the first belt away from the first motor. One end of the swing rod extends into the slide groove and connects to the slide groove plate, and the side of the swing rod away from the slide groove plate is fixedly connected to the connecting frame; The connecting frame is connected to the filter screen via a transmission mechanism; When the first motor starts, the driving force of the first motor can be transmitted to the connecting frame through the first belt, the sliding disc and the swing rod, and the connecting frame then drives the filter screen to move.

9. The shale sample crushing experimental apparatus as described in claim 8, characterized in that, The connecting frame includes: a ring-shaped frame, two longitudinal beams symmetrically arranged on the frame, one end of each longitudinal beam fixed to the frame, and the other end extending upward away from the frame, and a crossbeam connecting to the other end of the two longitudinal beams. The swing arm is connected to the crossbeam; An arc-shaped sliding block is fixed to the inner wall of the reactor. An arc-shaped groove is provided inside the sliding block, and the longitudinal beam passes through the groove. When the first motor starts, the driving force of the first motor can be transmitted to the connecting frame through the first belt, the sliding plate and the swing rod. Under the constraint of the sliding block's groove, the connecting frame drives the filter screen to swing back and forth around the crossbeam.

10. The shale sample crushing experimental apparatus as described in claim 9, characterized in that, An extension is provided in the middle of the crossbeam towards the inner wall of the reactor. When the filter screen swings back and forth, the extension can come into contact with the shale sample on the filter screen.

11. The shale sample crushing experimental apparatus as described in claim 9, characterized in that, The filter screen includes a filter body and a mounting sleeve surrounding the filter body. The mounting sleeve has a mounting groove, and the connecting frame is installed in the mounting groove.

12. The shale sample crushing experimental apparatus as described in claim 11, characterized in that, A second motor is also provided below the connecting frame. A first gear is rotatably connected to the output shaft end of the second motor. A sweeping rod is fixedly connected to the side of the first gear away from the second motor. A gear ring meshes with one side of the first gear. The gear ring is fixedly connected to the connecting frame.

13. The shale sample crushing experimental apparatus as described in claim 12, characterized in that, When the second motor starts, it drives the first gear to rotate. When the first gear rotates, it drives the gear ring and the sweeping rod to rotate. The overlap of the meshing between the first gear and the gear ring is greater than 1.

8. The sweeping rod can make a circular motion around the connecting frame while rotating.

14. The shale sample crushing experimental apparatus as described in claim 12, characterized in that, The outer diameter of the toothed ring is the same as the outer diameter of the filter screen. The toothed ring is located on the mounting sleeve of the filter screen. The outer diameter of the connecting frame is larger than the outer diameters of the toothed ring and the filter screen. The outer diameter of the connecting frame is the same as the inner diameter of the reactor.

15. The shale sample crushing experimental apparatus as described in claim 14, characterized in that, The second motor is connected to the swing arm.

16. The shale sample crushing experimental apparatus as described in claim 1, characterized in that, The shale sample crushing experimental device also includes a base and a support frame set on the top of the base. The reaction vessel is installed in the support frame. A heating device is set at the bottom of the reaction vessel. A flow pipe is fixedly connected to one side of the reaction vessel. A fluid device is fixedly connected to the side of the flow pipe away from the reaction vessel.

Images