Geological sample screening device

Abstract

The utility model provides a geological sample screening device which comprises a fixing frame, a protection cover is fixedly installed in the fixing frame, the output end of a first motor is connected with a transmission part, a power part is installed in the middle of the transmission part, the surface of the transmission part is in meshed connection with a sample screening part, and the other end of the fixing frame is fixedly connected with a water tank. And a dust collection device is mounted on one side of the material protection box. When the machine runs, the protective cover covers both the small screen drum and the large screen drum, the rotating shaft drives the second synchronous belt to rotate through the second synchronous wheel, the second synchronous belt drives the synchronous shaft to rotate, the synchronous shaft drives the fan blades on the two opposite sides to rotate, and the two ends of the synchronous shaft are each provided with an installation drum. Dust enters the mounting cylinder through the first dust suction pipe due to rotation of the fan blades and then enters the collecting box through the dust outlet pipe to assist in dust suction, the dust in the protective cover enters the collecting box through the second dust suction pipe through the dust suction pump, the box door is arranged at the bottom of the collecting box, and cleaning is conducted after collection is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of geological sample screening, in particular to a geological sample screening device. Background Art

[0002] Chinese utility model patent: CN220479340U, discloses a sample collection and screening device for geological and mineral exploration, including a support base, a lifting starter is fixedly connected to one side of the top notch of the support base, a lifting tube is symmetrically fixedly connected to the top of the lifting starter, and a lifting rod is movably connected to the inner cavity of the lifting tube. The utility model symmetrically arranges lifting tubes on one side of the bottom of the rotating plate, and the lifting tubes are lifted and moved in the inner cavity of the lifting starter to drive the rotating plate to rotate around the connecting shaft on one side thereof, so that the screen drum on the top of the rotating plate rotates synchronously to achieve the purpose of screening;

[0003] The above patent can automatically dump the samples after screening, but since the sieve cylinder is exposed during the screening and dumping process, some dust is inevitable during the screening process. This dust can easily enter the body of the staff and the equipment, delaying the work and polluting the ecological environment.

[0004] Therefore, we made improvements on this and proposed a geological sample screening device. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that during the screening and dumping process, since the screen cylinder is in an exposed state, some dust will inevitably appear in the screening process, and the dust will easily enter the body of the staff and the equipment, delaying the work and polluting the ecological environment.

[0006] In order to achieve the above-mentioned invention object, the utility model provides the following technical solutions:

[0007] The geological sample screening device is used to improve the above problems.

[0008] The specific application is as follows:

[0009] It includes a fixed frame, a protective cover is fixedly installed inside the fixed frame, a feed pocket is installed on the top of the front end of the protective cover, a discharge door is rotatably connected to the rear end of the protective cover, a material protection box is installed at the bottom of the fixed frame, support legs are installed around the bottom of the material protection box, a support plate is installed on one side of the fixed frame, a motor 1 is fixedly installed on the top of the support plate, a transmission part is connected to the output end of the motor 1, a power part is installed in the middle of the transmission part, a sieve part is meshingly connected to the surface of the transmission part, an annular groove is opened inside the protective cover, the inside of the annular groove is rotatably connected to the sieve part, one end of the fixed frame is fixedly connected to a collecting box, the other end of the fixed frame is fixedly connected to a water tank, and a dust suction device is installed on one side of the material protection box.

[0010] When the machine is running, the protective cover covers both the small screen drum and the large screen drum, the rotating shaft drives the second synchronous belt to rotate through the second synchronous wheel, the second synchronous belt drives the synchronous shaft to rotate, and the synchronous shaft drives the fan blades on the opposite sides to rotate. A mounting cylinder is installed at each end of the synchronous shaft. Dust will enter the interior of the mounting cylinder through the dust suction pipe 1 due to the rotation of the fan blades, and then enter the collection box through the dust outlet pipe to assist in dust suction. The dust in the protective cover is allowed to enter the collection box through the dust suction pipe 2 through the dust suction pump. There is a box door at the bottom of the collection box for cleaning after collection is completed.

[0011] As a preferred embodiment of the geological sample screening device provided by the utility model, the dust suction device includes a support plate, a mounting cylinder is installed on the upper side of the support plate, a synchronous shaft is rotatably connected inside the mounting cylinder, both ends of the synchronous shaft extend to the inside of the mounting cylinder and are rotatably connected to fan blades, a dust suction pipe 1 is fixedly connected to the front end of the mounting cylinder, one end of the dust suction pipe 1 is fixedly connected to the inner side of the material protection box, a dust outlet pipe is fixedly connected to the upper side of the mounting cylinder, a one-way valve is fixedly connected to the rear end of the dust outlet pipe, the one-way valve is installed on the surface of the collecting box, a dust suction pump is fixedly connected to the upper side of the collecting box, a dust suction pipe 2 is installed at the input end of the dust suction pump, a one-way valve is also installed on the inner surface of the dust suction pump extending to the collecting box, the upper end of the dust suction pipe 2 extends to the inner wall of the protective cover, and the bottom of the collecting box is connected to a box door.

[0012] As a preferred embodiment of the geological sample screening device provided by the utility model, the screening element includes a small sieve cylinder and a large sieve cylinder, the small sieve cylinder and the large sieve cylinder are fixedly installed, and a guard plate is fixedly installed on the outer surface of the small sieve cylinder and the large sieve cylinder, and the guard plate is rotatably arranged inside the annular groove, and a gear ring is installed at one end of the small sieve cylinder and the large sieve cylinder.

[0013] As a preferred embodiment of the geological sample screening device provided by the utility model, the transmission part includes a first synchronous wheel and a rotating shaft, the surface of the first synchronous wheel is meshedly connected with a first synchronous belt, the end of the rotating shaft close to the motor is meshedly connected with the first synchronous belt through the first synchronous wheel, the front and rear sides of the rotating shaft are rotatably connected with gears, the front and rear sides of the protective cover are provided with notches, the gears are meshedly connected with the gear ring through the notches, the outer surface of the rotating shaft is symmetrically equipped with fixed plates, and the rotating shaft is rotatably arranged inside the fixed plate.

[0014] As a preferred embodiment of the geological sample screening device provided by the utility model, the power part includes a second synchronous wheel, the surface of the second synchronous wheel is meshed and connected with a second synchronous belt, and the second synchronous wheel on the surface of the rotating shaft is rotatably connected to the second synchronous wheel on the surface of the slot through the second synchronous belt.

[0015] As a preferred embodiment of the geological sample screening device provided by the utility model, a water pump is installed inside the water tank, a water inlet is opened on the upper side of the water tank, water pipes are installed on both sides of the lower surface of the water tank, the water pipes are fixedly connected to the water pump, and the other end of the water pipe extends to the interior of the material protection box where a water outlet plate is installed.

[0016] As a preferred embodiment of the geological sample screening device provided by the utility model, a guide plate is provided inside the fixing frame, and an isolation plate is fixedly installed in the middle of the inner wall of the material protection box.

[0017] As a preferred embodiment of the geological sample screening device provided by the utility model, motor 2 is installed at both ends of the outer surface of the material protection box, and the output end of motor 2 is rotatably connected to a conveyor belt through a rotating shaft extending to the inside of the material protection box.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] When the machine is running, the protective cover covers both the small screen drum and the large screen drum, the rotating shaft drives the second synchronous belt to rotate through the second synchronous wheel, the second synchronous belt drives the synchronous shaft to rotate, and the synchronous shaft drives the fan blades on the opposite sides to rotate. A mounting cylinder is installed at each end of the synchronous shaft. Dust will enter the interior of the mounting cylinder through the dust suction pipe 1 due to the rotation of the fan blades, and then enter the collection box through the dust outlet pipe to assist in dust suction. The dust in the protective cover is allowed to enter the collection box through the dust suction pipe 2 through the dust suction pump. There is a box door at the bottom of the collection box for cleaning after collection is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of the geological sample screening device provided for this application;

[0021] Figure 2 A schematic diagram of the front cross-sectional structure of the geological sample screening device provided in this application;

[0022] Figure 3 A schematic diagram of the structure of the geological sample screening device provided in this application from a bottom up view;

[0023] Figure 4 A schematic diagram of the side cross-sectional structure of the protective cover of the geological sample screening device provided in this application;

[0024] Figure 5 A schematic side cross-sectional view of the mounting tube of the geological sample screening device provided in this application.

[0025] Indicated in the figure:

[0026] 1. Protective cover; 2. Fixed frame; 3. Support legs; 4. Feed pocket; 5. Small screen drum; 6. Large screen drum;

[0027] 7. Discharge door; 8. Support plate; 9. Motor 1; 10. First synchronous wheel; 11. First synchronous belt; 12. Rotating shaft; 13. Gear; 14. Gear ring; 15. Notch; 16. Fixed plate; 17. Second synchronous wheel; 18. Second synchronous belt; 19. Mounting cylinder; 20. Dust suction pipe 1; 21. Dust discharge pipe; 22. One-way valve; 23. Collection box; 24. Dust suction pipe 2; 25. Motor 2; 26. Guide plate; 27. Conveyor belt; 28. Water inlet; 29. ​​Water tank; 30. Water pipe; 31. Water outlet orifice plate; 32. Fan blade; 33. Guard plate; 34. Isolation plate; 35. Synchronous shaft; 36. Box door; 37. Material protection box; 38. Dust suction pump. DETAILED DESCRIPTION

[0028] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0029] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] As described in the background technology, during the screening and dumping process, since the screen drum is in an exposed state, some dust is inevitable during the screening process. This dust can easily enter the body of the staff and the equipment, delaying the work and polluting the ecological environment.

[0034] In order to solve this technical problem, the utility model provides a geological sample screening device.

[0035] Specifically, please refer to Figure 1-5 The geological sample screening device specifically includes: a fixed frame 2, a protective cover 1 is fixedly installed inside the fixed frame 2, a feed pocket 4 is installed on the top of the front end of the protective cover 1, and a discharge door 7 is rotatably connected to the rear end of the protective cover 1. A material protection box 37 is installed at the bottom of the fixed frame 2, and support legs 3 are installed around the bottom of the material protection box 37. A support plate 8 is installed on one side of the fixed frame 2, and a motor 9 is fixedly installed on the top of the support plate 8. A transmission part is connected to the output end of the motor 9, a power part is installed in the middle of the transmission part, and a screening part is meshed and connected on the surface of the transmission part. An annular groove is opened inside the protective cover 1, and the inside of the annular groove is rotatably connected to the screening part. A collecting box 23 is fixedly connected to one end of the fixed frame 2, and a water tank 29 is fixedly connected to the other end of the fixed frame 2. A dust suction device is installed on one side of the material protection box 37.

[0036] When the machine is running, the protective cover 1 covers both the small screen drum 5 and the large screen drum 6, the rotating shaft 12 drives the second synchronous belt 18 to rotate through the second synchronous wheel 17, the second synchronous belt 18 drives the synchronous shaft 35 to rotate, and the synchronous shaft 35 drives the fan blades 32 on the opposite sides to rotate. The two ends of the synchronous shaft 35 are respectively equipped with a mounting cylinder 19. Due to the rotation of the fan blades 32, dust will enter the interior of the mounting cylinder 19 through the dust suction pipe 20, and then enter the collection box 23 through the dust outlet pipe 21 to assist in dust suction, and the dust in the protective cover 1 is allowed to enter the collection box 23 through the dust suction pipe 24 through the dust suction pump 38. There is a box door 36 at the bottom of the collection box 23, so that it can be cleaned after collection is completed.

[0037] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0040] Example 1

[0041] Please refer to Figure 1-5A geological sample screening device comprises a fixed frame 2, a protective cover 1 is fixedly installed inside the fixed frame 2, a feed pocket 4 is installed on the top of the front end of the protective cover 1, a discharge door 7 is rotatably connected to the rear end of the protective cover 1, a material protection box 37 is installed at the bottom of the fixed frame 2, and support legs 3 are installed around the bottom of the material protection box 37, a support plate 8 is installed on one side of the fixed frame 2, a motor 9 is fixedly installed on the top of the support plate 8, a transmission part is connected to the output end of the motor 9, a power part is installed in the middle of the transmission part, and a screening part is meshed and connected on the surface of the transmission part, an annular groove is opened inside the protective cover 1, and the inside of the annular groove is rotatably connected to the screening part, one end of the fixed frame 2 is fixedly connected to the collecting box 23, and the other end of the fixed frame 2 is fixedly connected to the water tank 29, and a dust suction device is installed on one side of the material protection box 37. The dust suction device includes a support plate, a mounting cylinder 19 is installed on the upper side of the support plate, a synchronous shaft 35 is rotatably connected inside the mounting cylinder 19, both ends of the synchronous shaft 35 extend to the mounting cylinder 19 and are rotatably connected to the fan blades 32, a dust suction pipe 20 is fixedly connected to the front end of the mounting cylinder 19, one end of the dust suction pipe 20 is fixedly connected to the inner side of the material protection box 37, a dust outlet pipe 21 is fixedly connected to the upper side of the mounting cylinder 19, a one-way valve 22 is fixedly connected to the rear end of the dust outlet pipe 21, the one-way valve 22 is installed on the surface of the collecting box 23, a dust suction pump 38 is fixedly connected to the upper side of the collecting box 23, a dust suction pipe 24 is installed at the input end of the dust suction pump 38, the dust suction pump 38 extends to the inner surface of the collecting box 23 and a one-way valve 22 is also installed, the upper end of the dust suction pipe 24 extends to the inner wall of the protective cover 1, and the bottom of the collecting box 23 is connected to a box door 36.

[0042] During the implementation process, when the machine is running, the sand and gravel to be screened enter the small screen drum 5 through the feed pocket 4. Since the fixed frame 2 is inclined, the small screen drum 5 and the large screen drum 6 are also inclined. The sand and gravel will slowly enter the large screen drum 6 from the small screen drum 5, and after reaching the discharge gate 7, the unfiltered sand and gravel will fall through the discharge gate 7, and the sand and gravel that are screened out by the small screen drum 5 and the large screen drum 6 will fall onto the conveyor belt 27 through the guide plate 26 in the fixed frame 2. The protective cover 1 covers both the small screen drum 5 and the large screen drum 6, and the rotating shaft 12 drives the second synchronous wheel 17 to rotate. The second synchronous belt 18 is driven to rotate, and the second synchronous belt 18 drives the synchronous shaft 35 to rotate, and the synchronous shaft 35 drives the fan blades 32 on the opposite sides to rotate. Both ends of the synchronous shaft 35 are equipped with mounting tubes 19. Due to the rotation of the fan blades 32, dust will enter the interior of the mounting tube 19 through the dust suction pipe 20, and then enter the collection box 23 through the dust outlet pipe 21 to assist in dust suction, and the dust in the protective cover 1 is allowed to enter the collection box 23 through the dust suction pipe 24 through the dust suction pump 38. The collection box 23 has a box door 36 at the bottom, so that it can be cleaned after collection is completed.

[0043] The implementation effect is that during the screening process, dust can be effectively prevented from spreading everywhere, so that it will not enter the staff and equipment, and will not pollute the ecological environment.

[0044] Example 2

[0045] The sample screening part includes a small screen drum 5 and a large screen drum 6. The small screen drum 5 and the large screen drum 6 are fixedly installed. A guard plate 33 is fixedly installed on the outer surface of the small screen drum 5 and the large screen drum 6. The guard plate 33 is rotatably arranged inside the annular groove. A gear ring 14 is installed at one end of the small screen drum 5 and the large screen drum 6. The transmission part includes a first synchronous wheel 10 and a rotating shaft 12. The surface of the first synchronous wheel 10 is meshedly connected with a first synchronous belt 11. The end of the rotating shaft 12 close to the motor 9 is meshed and connected with the first synchronous belt 11 through the first synchronous wheel 10. The rotating shaft 12 is rotatably connected with a gear 13 on both sides. The protective cover 1 is provided with a notch 15 on both sides. The gear 13 is meshed and connected with the gear ring 14 through the notch 15. The outer surface of the rotating shaft 12 is symmetrically equipped with a fixed plate 16. The rotating shaft 12 is rotatably arranged inside the fixed plate 16. The power member includes a second synchronous wheel 17 , and a second synchronous belt 18 is meshed and connected on the surface of the second synchronous wheel 17 . The second synchronous wheel 17 on the surface of the rotating shaft 12 is rotationally connected to the second synchronous wheel 17 on the surface of the slot 15 through the second synchronous belt 18 .

[0046] During the implementation process, the guard plate 33 is located between the protective cover 1 and the small screen drum 5 and the large screen drum 6 to prevent dust from falling onto the gear ring 14. At the same time, the small screen drum 5 and the large screen drum 6 can operate normally through the meshing of the gear 13 and the gear ring 14. The output end of the motor 9 drives the first synchronous wheel 10 to rotate, and the first synchronous wheel 10 is meshed and connected to drive the first synchronous belt 11 to rotate, and at the same time drives the rotating shaft 12 to rotate, and drives the second synchronous wheel 17 to rotate. The second synchronous wheel 17 is meshed and rotated with the second synchronous belt 18 passing through the surface and the second synchronous wheel 17 on the synchronous shaft 35, thereby making the dust collection device operate.

[0047] The implementation effect can be used to vacuum and protect equipment during the screening process.

[0048] Example 3

[0049] A water pump is installed inside the water tank 29, a water inlet 28 is opened on the upper side of the water tank 29, and water pipes 30 are installed on both sides of the lower surface of the water tank 29. The water pipes 30 are fixedly connected to the water pump, and the other end of the water pipes 30 extends to the inside of the material protection box 37 and is installed with a water outlet plate 31. A guide plate 26 is opened inside the fixed frame 2, and an isolation plate 34 is fixedly installed in the middle of the inner wall of the material protection box 37. Motor 25 is installed at both ends of the outer surface of the material protection box 37, and the output end of the motor 25 is rotatably connected to the conveyor belt 27 through a rotating shaft extending to the inside of the material protection box 37.

[0050] During the implementation process, when the screened samples fall onto the conveyor belt 27 through the guide plate 26, the isolation plate 34 will separate the large sand and gravel from the small sand and gravel so that they fall on different conveyor belts 27 and are transported out by driving the conveyor belt 27 through the motor 25. After the water pump inside the water tank 29 is turned on, water will pass through the water pipe 30 and the water outlet plate 31 to reduce the dust on the falling sand and gravel.

[0051] The implementation effect is that the dust produced by the falling sand and gravel can be effectively reduced.

[0052] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A geological sample screening device, comprising a fixing frame (2), characterized in that: A protective cover (1) is fixedly installed inside the fixed frame (2), a feed pocket (4) is installed on the top of the front end of the protective cover (1), and a discharge door (7) is rotatably connected to the rear end of the protective cover (1). A material protection box (37) is installed at the bottom of the fixed frame (2), and support legs (3) are installed around the bottom of the material protection box (37). A support plate (8) is installed on one side of the fixed frame (2), and a motor (9) is fixedly installed on the top of the support plate (8). The output end of the motor (9) is connected to a transmission member, and a power member is installed in the middle of the transmission member. The surface of the transmission member is meshed and connected with a screening member. An annular groove is opened inside the protective cover (1), and the inside of the annular groove is rotatably connected to the screening member. A collection box (23) is fixedly connected to one end of the fixed frame (2), and a water tank (29) is fixedly connected to the other end of the fixed frame (2). A dust suction device is installed on one side of the material protection box (37).

2. A geological sample screening device according to claim 1, characterized in that: The dust collecting device comprises a support plate, a mounting tube (19) is mounted on the upper side of the support plate, a synchronous shaft (35) is rotatably connected inside the mounting tube (19), both ends of the synchronous shaft (35) extend to the inside of the mounting tube (19) and are rotatably connected to fan blades (32), a dust collecting pipe (20) is fixedly connected to the front end of the mounting tube (19), one end of the dust collecting pipe (20) is fixedly connected to the inner side of the material protection box (37), a dust outlet pipe (21) is fixedly connected to the upper side of the mounting tube (19), and the dust outlet pipe ( 21) is fixedly connected to a one-way valve (22) at the rear end, the one-way valve (22) is installed on the surface of the collection box (23), the upper side of the collection box (23) is fixedly connected to a dust suction pump (38), the input end of the dust suction pump (38) is installed with a dust suction pipe 2 (24), the dust suction pump (38) extends to the inner surface of the collection box (23) and is also installed with a one-way valve (22), the upper end of the dust suction pipe 2 (24) extends to the inner wall of the protective cover (1), and the bottom of the collection box (23) is connected to a box door (36).

3. A geological sample screening device according to claim 2, characterized in that: The sample screening element comprises a small sieve cylinder (5) and a large sieve cylinder (6); the small sieve cylinder (5) and the large sieve cylinder (6) are fixedly installed; a guard plate (33) is fixedly installed on the outer surface of the small sieve cylinder (5) and the large sieve cylinder (6); the guard plate (33) is rotatably arranged inside the annular groove; and a gear ring (14) is installed at one end of the small sieve cylinder (5) and the large sieve cylinder (6).

4. A geological sample screening device according to claim 3, characterized in that: The transmission member comprises a first synchronous wheel (10) and a rotating shaft (12); the surface of the first synchronous wheel (10) is meshedly connected with a first synchronous belt (11); one end of the rotating shaft (12) close to the motor (9) is meshedly connected with the first synchronous belt (11) through the first synchronous wheel (10); the front and rear sides of the rotating shaft (12) are rotatably connected with gears (13); the front and rear sides of the protective cover (1) are provided with notches (15); the gears (13) are meshedly connected with a gear ring (14) through the notches (15); the outer surface of the rotating shaft (12) is symmetrically provided with fixed plates (16); the rotating shaft (12) is rotatably arranged inside the fixed plates (16).

5. A geological sample screening device according to claim 4, characterized in that: The power member comprises a second synchronous wheel (17), the surface of the second synchronous wheel (17) is meshedly connected with a second synchronous belt (18), and the second synchronous wheel (17) on the surface of the rotating shaft (12) is rotationally connected to the second synchronous wheel (17) on the surface of the slot (15) via the second synchronous belt (18).

6. A geological sample screening device according to claim 1, characterized in that: A water pump is installed inside the water tank (29), a water inlet (28) is opened on the upper side of the water tank (29), water pipes (30) are installed on both sides of the lower surface of the water tank (29), the water pipes (30) are fixedly connected to the water pump, and the other end of the water pipe (30) extends to the inside of the material protection box (37) and is installed with a water outlet orifice plate (31).

7. A geological sample screening device according to claim 1, characterized in that: A guide plate (26) is provided inside the fixing frame (2), and an isolation plate (34) is fixedly installed in the middle of the inner wall of the material protection box (37).

8. A geological sample screening device according to claim 1, characterized in that: Motor 2 (25) is installed at both ends of the outer surface of the material protection box (37), and the output end of motor 2 (25) is rotatably connected to the conveyor belt (27) via a rotating shaft extending into the interior of the material protection box (37).

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