Oil shale grinding and screening device
By designing a parenteral shale grinding screening device including screening box, screening net, dislocation plate and grinding wheel, the problem of large particles of powder accumulation in the existing device is solved and the screening efficiency is improved.
Patent Information
- Application Number
- CN202420947858.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-05-06
AI Technical Summary
In the existing parenteral shale grinding screening device, the larger particles of the screened powder will accumulate above the screening plate, affecting the subsequent screening efficiency.
A master shale grinding screening device is designed, including a screening box, a screening net, a dislocation plate, an elastic telescopic rod, a grinding wheel, a screw push rod and a hanging rod. The grinding wheel drives the screening net to move back and forth, screen raw material powder, and grind and crush large particles of raw materials again during the rotation of the grinding wheel to solve the accumulation problem.
It effectively prevents the accumulation of large particles of powder, improves the efficiency of subsequent screening, and ensures sufficient screening and crushing of raw materials.
Smart Images
Figure CN222829715U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil shale grinding and screening, in particular to an oil shale grinding and screening device. Background Art
[0002] Oil shale is a mineral resource with abundant reserves but has not been fully utilized. Oil shale can be used to refine not only fuel oil, but also synthetic gas and chemical raw materials. By-products can also be used to make bricks, cement and other building materials.
[0003] Oil shale will be ground into powder during processing. After the raw material is ground, the ground powder raw material needs to be screened. In the screening device in the existing technology, the larger particles of powder screened out will accumulate on the screening plate, affecting the subsequent screening efficiency. Therefore, an oil shale grinding and screening device is proposed, which can timely process the screened large particles of powder to prevent it from affecting the subsequent screening. Utility Model Content
[0004] In view of the problem that the powder with larger particles screened out by the above-mentioned existing screening device will be accumulated on the screening plate, thus affecting the subsequent screening efficiency, the present utility model is proposed.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an oil shale grinding and screening device, comprising a screening box, a screening net is arranged inside the screening box, a dislocation plate is arranged in front of the screening box, an elastic telescopic rod is fixedly connected to the front of the screening box, the front end of the elastic telescopic rod is fixedly connected to the dislocation plate, the upper surface of the screening net is fixedly connected to two side plates, grinding wheels are arranged on the inner walls of the left and right ends above the screening net, the two ends of each grinding wheel rotate respectively and penetrate the sides of the two side plates close to each other, and the front end of each grinding wheel slides The front end of the two inner prism shafts are respectively fixedly connected to the two output ends of the double-head power machine, and the outer surfaces of the two inner prism shafts are fixedly connected with concentric disks, and the backs of the two concentric disks are fixedly connected with spiral push rods, and the rears of the two spiral push rods are contacted with vertical rods, and the rear ends of the two vertical rods are fixedly connected to the front side of the dislocation plate.
[0006] Preferably, the upper end of the screening net is in the shape of a curved arc, the left and right side surfaces of the screening net are symmetrical inclined surfaces, and the left and right ends of the screening net are both semicircular structures.
[0007] Preferably, the left and right inclined surfaces of the screening net are rotatably connected to blocking plates, and the end of the blocking plate close to the screening net is fixedly connected to a long axis, and the two ends of the long axis respectively rotate to pass through the sides of the two side plates close to each other, and the front end of the long axis rotates to pass through the back side of the offset plate, and the end of the long axis located in front of the offset plate is slidably sleeved with a gear, and the gear is rotatably inserted into the front side of the offset plate.
[0008] Preferably, a horizontal frame is provided in front of the offset plate, and two plug shafts are slidably inserted inside the horizontal frame, and the rear ends of the two plug shafts are fixedly connected with tooth plates, and the front side of the screening box is slidably sleeved on the lower ends of the two tooth plates, and the sides of the two tooth plates facing away from each other are meshed with adjacent gears, and the bottom surface of the horizontal frame is fixedly connected with a power telescopic rod, and the lower end of the power telescopic rod is fixedly connected to the front side of the screening box.
[0009] Preferably, the shape of the spiral push rod is a spiral line structure, and the spiral axes of the two spiral push rods are respectively coaxially arranged with the two inner prism axes.
[0010] Preferably, the end of the long axis located in front of the offset plate is a prismatic structure, and the end of the grinding wheel located in front of the offset plate is a prismatic structure.
[0011] Preferably, the outer diameter of the grinding wheel is smaller than the inner diameter of the arc structures at the left and right ends of the screening box, and the two grinding wheels are symmetrically distributed about the central axis of the screening net.
[0012] Preferably, the plurality of blocking plates on the left and right sides of the central axis of the screening box are equidistantly distributed, and the plurality of gear axis connecting lines on the left and right sides of the central axis of the screening box are respectively arranged parallel to the two tooth plates.
[0013] Beneficial effects of the utility model:
[0014] 1. By setting the grinding wheel, screening net, spiral push rod and vertical rod, the offset plate drives the screening net to move back and forth through the grinding wheel to screen the raw material powder above the screening net. Large particles of raw materials slide between the grinding wheel and the screening net. The large particles of raw materials are ground and crushed again during the rotation of the grinding wheel, and the ground raw materials fall from the screening net.
[0015] 2. By setting a blocking plate, a long shaft, a gear and a tooth plate, when the blocking plate is perpendicular to the inclined surface of the screening net, the blocking plate separates the raw materials on the screening net to prevent the raw materials from sliding down too quickly and failing to be fully screened. When the horizontal frame moves upward, the tooth plate is pulled upward by the plug shaft, and the tooth plate engages with the gear to drive the blocking plate to rotate downward and fit the screening net, so that the large particles screened out slide down and fall between the grinding wheel and the screening net. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:
[0017] Figure 1 It is a schematic diagram of the structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the internal structure of the screening box of the utility model;
[0019] Figure 3 It is a schematic top view of part of the structure of the utility model;
[0020] Figure 4 This is a schematic diagram of the connection between the side plate and the screening net of the utility model;
[0021] Figure 5 This is a schematic diagram of the structure of the blocking plate of the utility model;
[0022] Figure 6 It is a schematic front view of part of the structure of the utility model.
[0023] Description of reference numerals:
[0024] 1. Screening box; 2. Screening net; 3. Elastic telescopic rod; 4. Offset plate; 5. Side plate; 6. Power telescopic rod; 7. Grinding wheel; 8. Tooth plate; 9. Double-head power machine; 10. Concentric disk; 11. Screw push rod; 12. Vertical rod; 13. Inner prism shaft; 14. Blocking plate; 15. Long shaft; 16. Gear; 17. Horizontal frame; 18. Insert shaft. DETAILED DESCRIPTION
[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.
[0026] Reference Figure 1-6 , which is an embodiment of the utility model, provides an oil shale grinding and screening device, which includes a screening box 1, a screening net 2 is arranged inside the screening box 1, a dislocation plate 4 is arranged in front of the screening box 1, an elastic telescopic rod 3 is fixedly connected to the front of the screening box 1, and the front end of the elastic telescopic rod 3 is fixedly connected to the dislocation plate 4.
[0027] The upper surface of the screening net 2 is fixedly connected with two side plates 5, the upper end of the screening net 2 is a curved arc shape, the left and right side surfaces of the screening net 2 are symmetrical inclined surfaces, the left and right ends of the screening net 2 are semicircular structures, the upper and lower sides of the screening box 1 are both open, and the raw materials are added from the upper opening of the screening box 1, so that the raw materials fall onto the curved arc ends on the screening net 2, and then the raw materials slide down from the inclined surfaces on both sides of the screening net 2 under gravity, and the inner walls at the upper left and right ends of the screening net 2 are provided with grinding wheels 7, the outer diameter of the grinding wheel 7 is smaller than the inner diameter of the circular arc structures at the left and right ends of the screening box 1, and the two grinding wheels 7 are symmetrically distributed about the central axis of the screening net 2, and large particles of raw materials fall between the grinding wheels 7 and the screening net 2, and the large particles of raw materials are crushed again when the grinding wheels 7 rotate, and the left and right inclined surfaces of the screening net 2 are rotatably connected with a blocking plate 14, and the end of the blocking plate 14 close to the screening net 2 is fixedly connected with a long axis 15, and the two ends of the long axis 15 rotate to penetrate the sides of the two side plates 5 close to each other, and the front of the long axis 15 The end rotates and penetrates the back side of the dislocation plate 4, and the end of the long axis 15 located in front of the dislocation plate 4 is slidably sleeved with a gear 16, and the gear 16 is rotatably plugged into the front side of the dislocation plate 4. A horizontal frame 17 is arranged in front of the dislocation plate 4, and two plug shafts 18 are slidably plugged into the interior of the horizontal frame 17. The rear ends of the two plug shafts 18 are fixedly connected with tooth plates 8. The front side of the screening box 1 is slidably sleeved on the lower ends of the two tooth plates 8, and the sides of the two tooth plates 8 away from each other are meshed with adjacent gears 16. The bottom surface of the horizontal frame 17 is fixedly connected with a power telescopic rod 6, and the lower end of the power telescopic rod 6 is fixedly connected to the front side of the screening box 1. A plurality of blocking plates 14 on the left and right sides of the central axis of the screening box 1 are equidistantly distributed, and the axis connecting lines of the plurality of gears 16 on the left and right sides of the central axis of the screening box 1 are respectively arranged parallel to the two tooth plates 8. When the tooth plate 8 is located at the bottom, the blocking plate 14 is perpendicular to the inclined surfaces on the left and right sides of the screening net 2, and the plurality of blocking plates 14 can separate the raw materials to prevent the raw materials from sliding too fast and being unable to be fully screened.
[0028] The two ends of each grinding wheel 7 rotate and penetrate the sides of the two side plates 5 that are close to each other. The front end of each grinding wheel 7 slides and penetrates the front inner wall of the screening box 1. The front of the screening box 1 is fixedly connected with a double-headed power machine 9. The end of each grinding wheel 7 located in front of the screening box 1 is slidably sleeved with an inner prism shaft 13. The two ends of the dislocation plate 4 rotate and sleeved on the front ends of the two grinding wheels 7. The front ends of the two inner prism shafts 13 are fixedly connected with the two output ends of the double-headed power machine 9 respectively. The end of the long shaft 15 located in front of the dislocation plate 4 is a prismatic structure, and the end of the grinding wheel 7 located in front of the dislocation plate 4 is a prismatic structure. The gear 16 can drive the long shaft 15 to rotate synchronously, and the inner prism shaft 13 can drive the grinding wheel 7 to rotate synchronously. The outer surfaces of the two inner prism shafts 13 are fixedly sleeved with Concentric disks 10, the backs of the two concentric disks 10 are fixedly connected with screw push rods 11, the rears of the two screw push rods 11 are in contact with vertical rods 12, the rear ends of the two vertical rods 12 are fixedly connected to the front of the offset plate 4, the shape of the screw push rods 11 is a spiral structure, the spiral axes of the two screw push rods 11 are coaxially arranged with two inner prism axes 13 respectively, the elastic telescopic rod 3 pushes the offset plate 4 to make the vertical rod 12 contact with the back of the screw push rods 11, when the screw push rods 11 rotate, the vertical rod 12 synchronously slides on the spiral surface of the screw push rods 11, pushing the offset plate 4 to move backward, after the vertical rod 12 moves to the rear end of the screw push rod 11, it moves back to the front end of the screw push rod 11 under the action of the elastic telescopic rod 3, and the arc angle of the screw push rod 11 is less than half a circle.
[0029] During use, the raw materials to be screened are added to the top of the screening net 2, the elastic telescopic rod 3 pushes the dislocation plate 4 to drive the vertical rod 12 to contact the back of the spiral push rod 11, the double-headed power machine 9 drives the two inner prism shafts 13 to rotate, and the inner prism shaft 13 drives the grinding wheel 7 and the spiral push rod 11 to rotate synchronously. When the spiral push rod 11 rotates, the vertical rod 12 and the dislocation plate 4 are continuously pushed backwards, and the dislocation plate 4 drives the screening net 2 to move forward and backward through the grinding wheel 7 to screen the raw material powder above the screening net 2. When the tooth plate 8 is at the bottom When the horizontal frame 17 moves upward, the tooth plate 8 is pulled upward by the plug shaft 18, and the tooth plate 8 is engaged with the gear 16 to drive the blocking plate 14 to rotate downward and fit the screening net 2, so that the large particles screened out slide down and fall between the grinding wheel 7 and the screening net 2. When the grinding wheel 7 rotates, the large particles of the raw materials are ground and crushed again, and the ground raw materials fall from the screening net 2.
[0030] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. An oil shale grinding and screening device, comprising a screening box (1), characterized in that: The screening box (1) is provided with a screening net (2) inside, a dislocation plate (4) is provided in front of the screening box (1), an elastic telescopic rod (3) is fixedly connected to the front of the screening box (1), the front end of the elastic telescopic rod (3) is fixedly connected to the dislocation plate (4), the upper surface of the screening net (2) is fixedly connected to two side plates (5), the inner walls at both ends of the upper left and right sides of the screening net (2) are provided with grinding wheels (7), the two ends of each grinding wheel (7) are respectively rotated to penetrate the mutually adjacent sides of the two side plates (5), the front end of each grinding wheel (7) is slidably penetrated the front inner wall of the screening box (1), and the front of the screening box (1) is fixedly connected to a double-headed A power machine (9), each grinding wheel (7) is slidably sleeved with an inner prism shaft (13) at one end located in front of the screening box (1), the two ends of the offset plate (4) are respectively rotatably sleeved on the front ends of the two grinding wheels (7), the front ends of the two inner prism shafts (13) are respectively fixedly connected to the two output ends of the double-head power machine (9), the outer surfaces of the two inner prism shafts (13) are fixedly sleeved with concentric disks (10), the backs of the two concentric disks (10) are fixedly connected with spiral push rods (11), the rears of the two spiral push rods (11) are contacted with vertical rods (12), and the rear ends of the two vertical rods (12) are fixedly connected to the front of the offset plate (4).
2. The oil shale grinding and screening device according to claim 1, characterized in that: The upper end of the screening net (2) is in the shape of a curved arc, the left and right side surfaces of the screening net (2) are symmetrical inclined surfaces, and the left and right ends of the screening net (2) are both semicircular structures.
3. The oil shale grinding and screening device according to claim 2, characterized in that: The left and right inclined surfaces of the screening net (2) are both rotatably connected to a blocking plate (14); one end of the blocking plate (14) close to the screening net (2) is fixedly connected to a long shaft (15); both ends of the long shaft (15) are rotatably penetrated through the mutually close surfaces of the two side plates (5); the front end of the long shaft (15) is rotatably penetrated through the back side of the offset plate (4); the end of the long shaft (15) located in front of the offset plate (4) is slidably sleeved with a gear (16); the gear (16) is rotatably plugged into the front side of the offset plate (4).
4. The oil shale grinding and screening device according to claim 3, characterized in that: A transverse frame (17) is arranged in front of the offset plate (4), and two plug shafts (18) are slidably plugged into the interior of the transverse frame (17), and the rear ends of the two plug shafts (18) are fixedly connected to tooth plates (8), and the front side of the screening box (1) is slidably sleeved on the lower ends of the two tooth plates (8), and the sides of the two tooth plates (8) that are away from each other are meshed with adjacent gears (16), and the bottom surface of the transverse frame (17) is fixedly connected to a power telescopic rod (6), and the lower end of the power telescopic rod (6) is fixedly connected to the front side of the screening box (1).
5. The oil shale grinding and screening device according to claim 1, characterized in that: The shape of the spiral push rod (11) is a spiral line structure, and the spiral axes of the two spiral push rods (11) are respectively coaxially arranged with the two inner prism axes (13).
6. The oil shale grinding and screening device according to claim 3, characterized in that: The end of the long axis (15) located in front of the offset plate (4) is a prismatic structure, and the end of the grinding wheel (7) located in front of the offset plate (4) is a prismatic structure.
7. The oil shale grinding and screening device according to claim 2, characterized in that: The outer diameter of the grinding wheel (7) is smaller than the inner diameter of the arc structures at the left and right ends of the screening box (1), and the two grinding wheels (7) are symmetrically distributed about the central axis of the screening net (2).
8. The oil shale grinding and screening device according to claim 4, characterized in that: The plurality of blocking plates (14) are arranged at equal distances on the left and right sides of the central axis of the screening box (1), and the axis connecting lines of the plurality of gears (16) on the left and right sides of the central axis of the screening box (1) are arranged parallel to the two toothed plates (8).