Coal wet separation experimental device

Abstract

The invention relates to the technical field of coal experiments, and provides a coal wet separation experiment device which comprises a detection frame. The liquid storage barrel is located below the detection frame, an opening is formed in the upper portion of the liquid storage barrel, and flushing liquid is stored in the liquid storage barrel; the screen drum is arranged on the detection frame in a lifting mode and located above the liquid storage barrel, a screen is arranged on the screen drum, and the screen drum is close to or away from the liquid storage barrel after being lifted. By means of the technical scheme, the problem that in the prior art, the detection efficiency is low due to the fact that it is difficult for operators to simulate solvent washing of coal samples is solved.

Description

Technical Field

[0001] The invention relates to the technical field of coal experiments, and in particular to a coal wet separation experimental device. Background Art

[0002] With the widespread mining and utilization of coal resources, the emergence of coal has brought many challenges to coal processing, transportation, storage, and combustion utilization. Some coals contain harmful substances that are soluble in water, and these coals will cause more serious air pollution when used. In order to solve the problems caused by the above-mentioned coal, this part of the coal needs to be specially treated, and the treatment process requires a lot of experiments to determine the different effects of different treatment processes. In the existing treatment method, the coal is usually crushed and then rinsed with a treatment solution to reduce the content of harmful substances in the coal. However, different particle sizes and different flushing speeds will produce different treatment effects. Therefore, how to choose the best treatment method among multiple options requires a lot of experiments and summaries by the testers. Therefore, a device that can simulate the actual production situation is needed for testing. Summary of the invention

[0003] The present invention provides a coal wet separation experimental device, which solves the problem in the related art that it is difficult for operators to simulate solvent washing of coal samples, resulting in low experimental efficiency.

[0004] The technical solution of the present invention is as follows: Coal wet separation experimental device, including: Testing rack; A liquid storage barrel, located below the detection frame, with an opening on the top of the liquid storage barrel, and used for storing flushing liquid; A sieve cylinder is lifted and arranged on the detection frame, the sieve cylinder is located above the liquid storage barrel, a sieve mesh is provided on the sieve cylinder, and the sieve cylinder is moved closer to or away from the liquid storage barrel after being lifted and lowered.

[0005] As a further technical solution, the coal flushing detection device is characterized in that it also includes: A sliding drive member is arranged on the detection frame. The sliding drive member has a telescopic end. The screen drum is arranged on the detection frame through the sliding drive member. The sliding drive member is used to drive the screen drum to rise and fall.

[0006] As a further technical solution, the coal flushing detection device is characterized in that it also includes: A transfer vehicle is arranged at one side of the detection frame, the liquid storage barrel is located on the transfer vehicle, and the transfer vehicle is used to drive the liquid storage barrel to move; A limiting sleeve is arranged on the transfer vehicle, and the limiting sleeve is used to limit the installation position of the liquid storage barrel.

[0007] As a further technical solution, the coal flushing detection device is characterized in that it also includes: A mounting seat, arranged at the telescopic end, the mounting seat having a mounting groove; The matching seat is arranged on the screen cylinder, the matching seat is provided with a matching block, and the mounting groove is used for mounting the matching block.

[0008] As a further technical solution, the coal flushing detection device is characterized in that it also includes: A fastening sleeve is rotatably arranged on the mounting seat, and a mounting opening is provided on the fastening sleeve. After the fastening sleeve rotates, the mounting opening is connected with or disconnected from the mounting groove.

[0009] As a further technical solution, the coal flushing detection device is characterized in that it also includes: The fastening block is detachably arranged in the installation groove, and the fastening block is used to limit the vibration of the matching block in the installation groove.

[0010] As a further technical solution, the flushing detection device for coal is characterized in that the fastening block has a fastening space, the fastening block has a first limiting hole above it, and the fastening block has a second limiting hole on one side, and the first limiting hole and the second limiting hole are both connected to the fastening space, and further includes: A slider, which is lifted and lowered in the fastening space; A first elastic member, two ends of which are respectively arranged on the slider and the fastening sleeve, and the first elastic member is used to support the slider; A second elastic member, one end of which is arranged on the slider, the second elastic member is located in the first limiting hole, the second elastic member and the first elastic member are respectively located on both sides of the slider, and after the slider rises, the second elastic member abuts against the mounting seat; A limiting slide rod is slidably arranged in the second limiting hole, and has a first guiding arc surface and a second guiding arc surface at both ends of the limiting slide rod. The first guiding arc surface abuts against the sliding block, and the second guiding arc surface is located at an end of the limiting slide rod away from the second limiting hole. After the fastening sleeve rotates, the second guiding arc surface abuts against the fastening sleeve, and the second guiding arc surface is used to provide force for the limiting slide rod to enter the second limiting hole.

[0011] As a further technical solution, the coal flushing detection device is characterized in that the mounting seat has a first lock hole, the fastening sleeve has a second lock hole, and further comprises: The locking rod is detachably arranged on the fastening sleeve. After the fastening sleeve is rotated, the first locking hole and the second locking hole are connected or disconnected. The locking rod is located in the second locking hole. The locking rod is used to limit the rotation of the fastening sleeve relative to the mounting seat.

[0012] As a further technical solution, the coal flushing detection device is characterized in that the matching seat is provided with a feed port, the feed port is connected with the screen, and the feed port is used to add materials into the screen cylinder.

[0013] As a further technical solution, the coal flushing detection device is characterized in that it also includes: A heating element is arranged in the limiting sleeve, and the heating element is used to heat the flushing liquid in the liquid storage barrel.

[0014] The working principle and beneficial effects of the present invention are: In the present invention, when in use, firstly, the coal powder or coal block to be tested is placed in the screen drum, and the coal sample in the screen drum is moved relative to the flushing liquid by lifting the screen drum, and the flushing liquid is simulated to continuously flush the coal sample, so that the test result is more accurate. By changing the lifting speed of the screen drum, the flushing liquid with different flow rates can be used to flush the coal sample, thereby improving the speed of the simulation. The detection frame provides a stable support structure for the entire device, ensuring the position accuracy and stability of each component during the working process. The opening above the liquid storage barrel is convenient for adding and replacing the flushing liquid, which is convenient for operation and maintenance. The screen drum can be lifted and lowered, so that the relative position of the screen drum and the liquid storage barrel can be flexibly controlled during the detection process, which is convenient for putting in, taking out and flushing coal. The screen on the screen drum can screen and separate the coal, so that the flushing liquid fully contacts the coal particles, thereby improving the flushing effect and the accuracy of the detection. The overall device has a compact structure, occupies a small space, and is convenient for arrangement and use in a laboratory or production site. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0016] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the structure of the present invention; Figure 4 It is a schematic diagram of the structure of the transfer vehicle in the present invention; Figure 5 It is a structural schematic diagram of the matching seat in the present invention; Figure 6 It is a schematic diagram of the structure of the fastening sleeve in the present invention; Figure 7 It is a schematic diagram of the structure of the fastening block in the present invention; Figure 8 It is a schematic diagram of the internal structure of the fastening block in the present invention; Fig. 9 It is a structural schematic diagram of the mounting seat and the matching seat in the present invention; Fig.10 It is a structural schematic diagram of the mounting seat and the matching seat in the present invention from another perspective.

[0017] In the figure: 1, detection frame, 2, liquid storage barrel, 3, opening, 4, screen cylinder, 5, screen, 7, sliding drive member, 8, telescopic end, 9, transfer vehicle, 10, limiting sleeve, 11, mounting seat, 12, mounting groove, 13, matching seat, 14, matching block, 15, fastening sleeve, 16, mounting port, 17, fastening block, 18, fastening space, 19, first limiting hole, 20, second limiting hole, 21, slider, 22, first elastic member, 23, second elastic member, 24, limiting slide rod, 25, first guide arc surface, 26, second guide arc surface, 27, first locking hole, 28, second locking hole, 29, locking rod, 30, feed port, 31, heating member. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, they can also be understood as further technical solutions without creative work. In some figures, components with the same structure or function are only schematically illustrated, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0019] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0021] Reference Figure 1 to Figure 10, which is the first embodiment of the present invention, proposes a coal wet sorting experimental device, including: a liquid storage barrel 2 is located below the detection frame 1, and an opening 3 is provided above the liquid storage barrel 2, and the liquid storage barrel 2 is used to store flushing liquid; a sieve drum 4 is arranged on the detection frame 1 for lifting, and the sieve drum 4 is located above the liquid storage barrel 2, and a sieve 5 is provided on the sieve drum 4, and the sieve drum 4 is close to or away from the liquid storage barrel 2 after being lifted.

[0022] In this embodiment, the screen drum has a filter screen. When in use, the coal powder to be tested is first placed in the screen drum 4. The coal powder in the screen drum 4 moves relative to the flushing liquid by lifting the screen drum 4, and the simulated flushing liquid continuously flushes the coal sample, so that the test result is more accurate. By changing the lifting speed of the screen drum 4, the flushing liquid with different flow rates can be used to flush the coal sample, thereby increasing the speed of the simulation. The detection frame 1 provides a stable support structure for the entire device, ensuring the position accuracy and stability of each component during operation. The opening 3 above the liquid storage barrel 2 is convenient for adding and replacing the flushing liquid, which is convenient for operation and maintenance. The screen drum 4 can be lifted and lowered, so that the relative position of the screen drum 4 and the liquid storage barrel 2 can be flexibly controlled during the detection process, which is convenient for putting in, taking out and flushing coal. The screen 5 on the screen drum 4 can screen and separate the coal, so that the flushing liquid fully contacts the coal particles, thereby improving the flushing effect and the accuracy of the test. The overall device has a compact structure and occupies a small space, which is convenient for arrangement and use in a laboratory or production site.

[0023] As a further technical solution, it also includes: a sliding drive member 7 is arranged on the detection frame 1, the sliding drive member 7 has a telescopic end 8, the screen drum 4 is arranged on the detection frame 1 through the sliding drive member 7, and the sliding drive member 7 is used to drive the screen drum 4 to rise and fall.

[0024] In this embodiment, the sliding drive member 7 is a hydraulic cylinder, a cylinder or other components capable of lifting and lowering. The setting of the sliding drive member 7 realizes the automatic control of the lifting and lowering of the screen drum 4, which makes the operation more convenient and efficient, and reduces the labor intensity of manual operation. The lifting stroke and speed of the screen drum 4 can be accurately controlled to ensure that the relative position of the screen drum 4 and the liquid storage barrel 2 are accurate and consistent each time the test is performed, thereby improving the repeatability and reliability of the test results. The telescopic end 8 of the sliding drive member 7 provides a stable power output, so that the lifting and lowering process of the screen drum 4 is smooth, avoiding the detection error caused by shaking or instability. The sliding drive member 7 using electric or pneumatic driving methods has a fast response speed, can quickly complete the lifting and lowering action of the screen drum 4, and improves the efficiency of the detection work.

[0025] As a further technical solution, it also includes: a transfer cart 9 is arranged on one side of the detection frame 1, the liquid storage barrel 2 is located on the transfer cart 9, and the transfer cart 9 is used to drive the liquid storage barrel 2 to move; a limit sleeve 10 is arranged on the transfer cart 9, and the limit sleeve 10 is used to limit the installation position of the liquid storage barrel 2.

[0026] In this embodiment, the liquid storage barrel 2 is located on the transfer vehicle 9. When testing is required, the liquid storage barrel 2 with the flushing liquid is pushed to the bottom of the detection frame 1. After the simulation is completed, it can be removed at any time, which is convenient for sampling and testing the flushing liquid, thereby improving the efficiency of the test. The setting of the transfer vehicle 9 enables the liquid storage barrel 2 to be flexibly moved, and it is convenient to transport the liquid storage barrel 2 to different working positions or to perform operations such as replacement and maintenance, thereby improving the convenience of work. The limiting sleeve 10 can ensure that the installation position of the liquid storage barrel 2 on the transfer vehicle 9 is accurate and stable, and prevents the liquid storage barrel 2 from shaking, deflecting or even tipping over during the movement, thereby ensuring the safety of transportation. When the flushing liquid in the liquid storage barrel 2 needs to be processed or replaced, the transfer vehicle 9 can quickly transport the liquid storage barrel 2 away, saving the time and energy of manpower handling.

[0027] As a further technical solution, it also includes: a mounting seat 11 is arranged at the telescopic end 8, and a mounting groove 12 is provided on the mounting seat 11; a matching seat 13 is arranged on the screen cylinder 4, and a matching block 14 is provided on the matching seat 13, and the mounting groove 12 is used to install the matching block 14.

[0028] In this embodiment, the screen drum 4 is also detachably arranged, the mounting groove 12 is a slot on the mounting seat 11, which is a square hole, and the matching block 14 is also square, slightly smaller than the mounting groove 12, which is convenient for installation. When the installation is completed, the matching block 14 can fill the mounting groove 12 to ensure that the telescopic end 8 can drive the screen drum 4 to rise and fall synchronously during the lifting. This detachable connection method facilitates the installation and disassembly of the screen drum 4, and is convenient for the separate maintenance, cleaning or replacement of the screen drum 4, thereby improving the maintainability of the equipment. The matching structure of the mounting groove 12 and the matching block 14 is simple, easy to manufacture, and reduces the production cost. It can effectively avoid the relative sliding or rotation of the screen drum 4 during the lifting process, ensure the accuracy and stability of the lifting of the screen drum 4, thereby improving the accuracy of the detection result. When it is necessary to replace the screen drum 4 of different specifications to meet different detection requirements, the replacement of the screen drum 4 can be completed quickly through the quick disassembly and assembly of the mounting groove 12 and the matching block 14, thereby improving the work efficiency.

[0029] As a further technical solution, the invention further includes: a fastening sleeve 15 is rotatably arranged on the mounting seat 11, and a mounting opening 16 is provided on the fastening sleeve 15. After the fastening sleeve 15 rotates, the mounting opening 16 is connected with the mounting groove 12 or the connection is cancelled.

[0030] In this embodiment, the setting of the fastening sleeve 15 enhances the fixing effect of the matching block 14 in the installation groove 12. When the fastening sleeve 15 rotates to connect the installation port 16 with the installation groove 12, the installation and removal of the matching block 14 are convenient; and when the fastening sleeve 15 rotates to cancel the connection between the installation port 16 and the installation groove 12, it can effectively prevent the matching block 14 from accidentally falling out, thereby improving the stability and safety of the connection. The fastening and loosening of the matching block 14 can be achieved through a simple rotation operation, which is convenient to operate, saves installation and disassembly time, and improves work efficiency. The fastening sleeve 15 can provide additional clamping force to further ensure that the screen drum 4 is firmly connected to the telescopic end 8 during the lifting process, and reduce the loose connection caused by vibration or impact. This adjustable fastening method adapts to the requirements for connection strength under different working conditions and increases the versatility and flexibility of the device. The rotating fastening sleeve 15 has a compact structure, does not take up too much space, and is not easily disturbed by the outside world, thereby ensuring long-term stable working performance.

[0031] As a further technical solution, the fastening block 17 is detachably arranged in the installation groove 12 , and the fastening block 17 is used to limit the vibration of the matching block 14 in the installation groove 12 .

[0032] In this embodiment, the fastening block 17 is detachably arranged in the mounting groove 12. Since there is a certain gap between the matching seat 13 and the mounting groove 12, the fastening block 17 is used to fill the gap to prevent the screen drum 4 from following the lifting when the matching sliding drive member 7 is extended and retracted, and no vibration will be generated to affect the simulation results. The setting of the fastening block 17 can effectively limit the vibration of the matching block 14 in the mounting groove 12, reduce the loose connection and wear caused by vibration, and thus extend the service life of the device. The detachable fastening block 17 is convenient for installation and replacement. When the fastening block 17 is worn or damaged, it can be replaced in time to ensure the stability of the fastening effect. It helps to improve the stability of the screen drum 4 during the lifting process, reduce the noise and errors caused by vibration, and improve the accuracy and reliability of detection.

[0033] As a further technical solution, the fastening block 17 has a fastening space 18, a first limiting hole 19 is provided above the fastening block 17, and a second limiting hole 20 is provided on one side of the fastening block 17. The first limiting hole 19 and the second limiting hole 20 are both connected to the fastening space 18, and also include: a slider 21 is lifted and arranged in the fastening space 18; the two ends of the first elastic member 22 are respectively arranged on the slider 21 and the fastening sleeve 15, and the first elastic member 22 is used to provide support force for the slider 21; one end of the second elastic member 23 is arranged on the slider 21, the second elastic member 23 is located in the first limiting hole 19, the second elastic member 23 and the first elastic member 22 are respectively located on both sides of the slider 21, after the slider 21 rises, the second elastic member 23 abuts against the mounting seat 11; the limiting slide bar 24 is slidably arranged in the second limiting hole 20, and the limiting slide bar 24 has a first guide arc surface 25 and a second guide arc surface 26 at both ends, the first guide arc surface 25 abuts against the side wall of the slider 21, and the second guide arc surface 26 is located at the end of the limiting slide bar 24 away from the second limiting hole 20.

[0034] In this embodiment, when in use, after the fastening block 17 is installed into the installation groove 12, the fastening sleeve 15 is rotated, and the fastening sleeve 15 will abut against the second guide arc surface 26, so that the limiting slide bar 24 completely enters the second limiting hole 20. After the limiting slide bar 24 enters the second limiting hole 20, the first guide arc surface 25 will simultaneously lift the slider 21, thereby compressing the second elastic member 23. After the second elastic member 23 is stretched, the gap between the fastening block 17 and the matching block 14 will be supported by the second elastic member 23, ensuring that the screen drum 4 will not generate a large vibration when it is lifted or lowered. Due to the existence of the fastening sleeve 15, the limiting slide bar 24 cannot extend out of the second limiting hole 20, and the first elastic member 22 provides a supporting force for the slider 21, so that the slider 21 can be stably lifted or lowered in the fastening space 18, ensuring the fastening and loosening of the matching block 14. After the slider 21 rises, the second elastic member 23 abuts against the mounting seat 11, increasing the limit and support of the slider 21, and improving the stability of the fastening effect. The limit slide bar 24 can drive the slider 21 to move by sliding; the design of the first guide arc surface 25 and the second guide arc surface 26 makes the contact between the slider 21 and the limit slide bar 24 smoother, reduces friction and jamming, and improves the smoothness of component movement. The overall structure achieves fastening through the synergy of the elastic member and the sliding component, improving the versatility and flexibility of the device.

[0035] As a further technical solution, the mounting seat 11 has a first locking hole 27, the fastening sleeve 15 has a second locking hole 28, and also includes: a locking rod 29 detachably arranged on the fastening sleeve 15, after the fastening sleeve 15 rotates, the first locking hole 27 and the second locking hole 28 are connected or disconnected, and the locking rod 29 is located in the second locking hole 28. The locking rod 29 is used to limit the rotation of the fastening sleeve 15 relative to the mounting seat 11.

[0036] In this embodiment, the setting of the locking rod 29 can effectively limit the rotation of the fastening sleeve 15 relative to the mounting seat 11, ensuring that when the position of the fastening sleeve 15 needs to be kept fixed, the fastening effect will not be affected by accidental rotation, thereby improving the stability and reliability of the device. When the first lock hole 27 and the second lock hole 28 are connected, the fastening sleeve 15 can be locked by inserting the locking rod 29, which is simple and convenient to operate, and the locking effect is clear. The detachable locking rod 29 is convenient for disassembly when the fastening sleeve 15 needs to be adjusted, has high flexibility, and does not affect normal installation and disassembly operations. It can prevent the fastening sleeve 15 from accidentally rotating due to vibration or external force during operation, thereby ensuring the stability of the connection between the screen drum 4 and the telescopic end 8 and reducing safety risks.

[0037] As a further technical solution, the matching seat 13 is provided with a feed port 30 , which is connected to the screen 5 , and is used to add materials into the screen 5 .

[0038] In this embodiment, the feed port 30 on the matching seat 13 is connected to the screen 5, which is convenient for directly adding coal materials into the screen 5, which is easy to operate and improves the efficiency of feeding. The design of the feed port 30 makes the feeding process more centralized and directional, reduces the leakage and waste of materials, and ensures that the materials can accurately enter the screen drum 4 for flushing and testing. Materials can be added through the feed port 30 at any time during the operation of the device to achieve continuous operation, improve the continuity of production and work efficiency. The position and size of the feed port 30 are reasonably designed, which is convenient for cooperation with external feeding equipment to achieve feeding operation and reduce the intensity of manual labor.

[0039] As a further technical solution, it also includes: a heating element 31 is arranged in the limiting sleeve 10, and the heating element 31 is used to heat the flushing liquid in the liquid storage barrel 2.

[0040] In this embodiment, the heating element 31 can heat the flushing liquid in the liquid storage barrel 2, increase the temperature of the flushing liquid, and help enhance the ability of the flushing liquid to dissolve and remove harmful substances in coal, thereby improving the flushing effect. The temperature of the flushing liquid can be flexibly adjusted according to different flushing requirements to achieve the best flushing detection conditions, thereby increasing the applicability of the device. The heating element 31 is arranged in the limiting sleeve 10, which can effectively utilize the space and evenly heat the liquid storage barrel 2 to avoid local overheating or uneven heating.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. Coal wet separation experimental device, characterized in that: include: Detection rack (1); A liquid storage barrel (2) is located below the detection frame (1), and an opening (3) is provided on the top of the liquid storage barrel (2). The liquid storage barrel (2) is used to store flushing liquid; A sieve drum (4) is arranged on the detection frame (1) in a lifting manner, the sieve drum (4) is located above the liquid storage barrel (2), a sieve mesh (5) is provided on the sieve drum (4), and the sieve drum (4) moves closer to or farther from the liquid storage barrel (2) after being lifted.

2. The coal wet separation experimental device according to claim 1, characterized in that: Also includes: A sliding drive member (7) is arranged on the detection frame (1), the sliding drive member (7) having a telescopic end (8), the sieve drum (4) is arranged on the detection frame (1) via the sliding drive member (7), and the sliding drive member (7) is used to drive the sieve drum (4) to rise and fall.

3. The coal wet separation experimental device according to claim 1, characterized in that: Also includes: A transfer vehicle (9) is arranged on one side of the detection frame (1), the liquid storage barrel (2) is located on the transfer vehicle (9), and the transfer vehicle (9) is used to drive the liquid storage barrel (2) to move; A limiting sleeve (10) is arranged on the transfer vehicle (9), and the limiting sleeve (10) is used to limit the installation position of the liquid storage barrel (2).

4. The coal wet separation experimental device according to claim 2, characterized in that: Also includes: A mounting seat (11) disposed on the telescopic end (8), the mounting seat (11) having a mounting groove (12); A matching seat (13) is arranged on the screen drum (4), the matching seat (13) has a matching block (14), and the mounting groove (12) is used to mount the matching block (14).

5. The coal wet separation experimental device according to claim 4, characterized in that: Also includes: A fastening sleeve (15), the fastening sleeve (15) being rotatably disposed on the mounting seat (11), the fastening sleeve (15) being provided with a mounting opening (16), and after the fastening sleeve (15) is rotated, the mounting opening (16) is connected to or disconnected from the mounting groove (12).

6. The coal wet separation experimental device according to claim 5, characterized in that: Also includes: A fastening block (17) is detachably arranged in the installation groove (12), and the fastening block (17) is used to limit the vibration of the matching block (14) in the installation groove (12).

7. The coal wet separation experimental device according to claim 6, characterized in that: The fastening block (17) has a fastening space (18) therein, the fastening block (17) has a first limiting hole (19) above it, and the fastening block (17) has a second limiting hole (20) on one side thereof, the first limiting hole (19) and the second limiting hole (20) both being in communication with the fastening space (18), and further comprising: A sliding block (21) is arranged in a lifting manner in the fastening space (18); a first elastic member (22), two ends of which are respectively arranged on the slider (21) and the fastening sleeve (15), the first elastic member (22) being used to support the slider (21); a second elastic member (23), one end of which is arranged on the slider (21); the second elastic member (23) is located in the first limiting hole (19); the second elastic member (23) and the first elastic member (22) are respectively located on two sides of the slider (21); after the slider (21) rises, the second elastic member (23) abuts against the mounting seat (11); A limiting slide bar (24) is slidably arranged in the second limiting hole (20), and the limiting slide bar (24) has a first guiding arc surface (25) and a second guiding arc surface (26) at both ends, the first guiding arc surface (25) abuts against the slider (21), and the second guiding arc surface (26) is located at an end of the limiting slide bar (24) away from the second limiting hole (20), and after the fastening sleeve (15) rotates, the second guiding arc surface (26) abuts against the fastening sleeve (15), and the second guiding arc surface (26) is used to provide a force for the limiting slide bar (24) to enter the second limiting hole (20).

8. The coal wet separation experimental device according to claim 7, characterized in that: The mounting seat (11) has a first locking hole (27), the fastening sleeve (15) has a second locking hole (28), and further comprises: A locking rod (29) is detachably arranged on the fastening sleeve (15); after the fastening sleeve (15) is rotated, the first locking hole (27) and the second locking hole (28) are connected or disconnected; the locking rod (29) is located in the second locking hole (28); the locking rod (29) is used to limit the rotation of the fastening sleeve (15) relative to the mounting seat (11).

9. The coal wet separation experimental device according to claim 4, characterized in that: The matching seat (13) is provided with a feed port (30), the feed port (30) being in communication with the screen (5), and the feed port (30) being used to replenish material into the screen cylinder (4).

10. The coal wet separation experimental device according to claim 3, characterized in that: Also includes: A heating element (31) is arranged in the limiting sleeve (10), and the heating element (31) is used to heat the flushing liquid in the liquid storage barrel (2).

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