Laminated high-frequency screening machine with multi-section multi-dip-angle structure
By designing a multi-stage multi-inclination structure and adjustment mechanism in a stacked high-frequency screen machine, the problem of water discharge on the screen in the prior art is solved, and more efficient dehydration and production of low moisture content products are achieved.
Patent Information
- Application Number
- CN202421839496.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The existing laminated screen equipment has a fixed and identical screen structure in the desilt and dewatering links of the coal preparation plant, resulting in different compositions of materials flowing through each section of the screen, resulting in problems such as discharge of materials on the screen.
A multi-stage multi-inclination structure stacked high-frequency screening machine is designed. The inclination angle of the screen is adjusted through the adjustment mechanism. The front-stage screen is used for full screening, and the rear-stage screen is reduced to increase the residence time of the slurry, further dehydration and reduce the moisture content of the material.
It effectively solves the problem of water discharge, and the obtained low moisture content products can be directly transported, improving the dehydration effect and product quality.
Smart Images
Figure CN223043078U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screening equipment, in particular to a multi-stage and multi-inclination structure laminated high-frequency screen machine. Background Art
[0002] The laminated high-frequency screen machine is a screening equipment, which is widely used in the wet screening classification and dehydration treatment operations of fine-grained materials in industries such as ore dressing and coal preparation.
[0003] For the existing laminated screens applied in the slime removal and dehydration links of coal preparation plants, whether they are three-stage or two-stage, basically adopt the screen surface structure with the same and fixed inclination angles, such as 17.5 degrees or 20 degrees. Since the material composition flowing through each section of the screen surface is different when the coal slime water passes through the screen surface, the screen surface with the same inclination angle has a certain influence on screening, and sometimes problems such as water running in the oversize discharge will occur. Summary of the Utility Model
[0004] In order to solve the problem of water running in the discharge in the above-mentioned existing technology, the utility model provides a laminated high-frequency screen machine with a multi-stage and multi-inclination structure.
[0005] A laminated high-frequency screen machine with a multi-stage and multi-inclination structure provided by the utility model adopts the following technical scheme:
[0006] A laminated high-frequency screen machine with a multi-stage and multi-inclination structure includes a screen material unit. The screen material unit includes side plates and a screen mesh arranged between the side plates. It also includes an adjusting mechanism. The adjusting mechanism includes a rotating shaft, an adjusting rod and a limiting member for fixing the adjusting rod. The rotating shaft is fixed on the screen mesh and rotatably connected to the side plates. A sliding hole is formed on the side plates. The adjusting rod is fixed on the screen mesh and slidably penetrates through the sliding hole up and down.
[0007] By adopting the above technical scheme, the staff can slide the adjusting rod up and down in the sliding hole to adjust the inclination angle of the screen mesh, and then fix the adjusting rod through the limiting member. Most of the fine-grained materials will pass through the front-section screen mesh for full screening. For the rear-section screen mesh, by reducing the inclination angle of the screen surface, the residence time of the pulp on the screen surface can be increased, achieving the effects of further dehydration and reducing the water content of the oversize material, thereby effectively solving the problem of water running in the discharge. The low water content product obtained can directly fall onto the belt conveyor for transportation.
[0008] Optionally, scale lines for identifying the inclination angle are arranged on the outer wall of the side plates.
[0009] By adopting the above technical scheme, the scale lines facilitate the staff to observe the change of the inclination angle of the screen mesh in real time, so as to accurately adjust the inclination angle of the screen mesh.
[0010] Optionally, a baffle for blocking the sliding hole is arranged on the adjusting rod, and the baffle abuts against the inner wall of the side plates.
[0011] By adopting the above technical solution, the baffle can be used to block the sliding hole, thereby preventing the slurry from overflowing and causing pollution.
[0012] Optionally, the limiting member is a locking nut, the locking nut is threadedly connected to the adjusting rod, and the locking nut abuts against the outer wall of the side plate.
[0013] By adopting the above technical solution, after the position of the adjusting rod is confirmed, the staff can screw and tighten the locking nut to fix the position of the adjusting rod, which is convenient to operate.
[0014] Optionally, the limiting member is a positioning column and a telescopic rod, the positioning column is fixed on the outer wall of the side plate, and the telescopic rod is hinged between the positioning column and the adjusting rod.
[0015] By adopting the above technical solution, the staff can change the position of the adjusting rod through the telescopic rod.
[0016] Optionally, the telescopic rod includes a sleeve, the sleeve is a cylindrical structure with one end open, an adjusting nut is fixedly connected to the open end of the sleeve, a screw rod is threadedly connected inside the adjusting nut, a first collar is fixedly connected to the end of the screw rod, the first collar is sleeved on the positioning column, and a second collar is rotatably connected to the closed end of the sleeve, and the second collar is sleeved on the adjusting rod.
[0017] By adopting the above technical solution, the staff can screw the adjusting nut to change the length of the telescopic rod, which is simple and convenient to operate.
[0018] Optionally, a rotating rod is fixedly connected to the second collar, the rotating rod rotatably passes through the closed end of the sleeve, and two limiting blocks are fixedly connected to the rotating rod, one of the limiting blocks is located inside the sleeve, and the other limiting block is located outside the sleeve.
[0019] By adopting the above technical solution, the rotating rod and the limiting blocks cooperate with each other to effectively realize the rotational connection between the second collar and the sleeve.
[0020] In summary, the utility model includes at least one of the following beneficial technical effects:
[0021] The staff can slide the adjusting rod up and down in the sliding hole to adjust the inclination angle of the screen. Subsequently, the adjusting rod is fixed by the limiting member. Most of the fine-grained materials will pass through the screen in the front section for full screening. The screen in the rear section can increase the residence time of the pulp on the screen surface by reducing the inclination angle of the screen surface, achieving the effects of further dehydration and reducing the water content of the oversize material, thereby effectively solving the problem of discharging water leakage. The product with low moisture content can directly fall onto the belt conveyor for transportation;
[0022] The scale line is convenient for the staff to observe the change of the screen inclination angle in real time, so as to accurately adjust the screen inclination angle;
[0023] The baffle can be used to block the sliding hole, thereby preventing the slurry from overflowing and causing pollution. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic structural diagram of the multi-stage and multi-inclination structure laminated high-frequency screening machine in Embodiment 1 of the present utility model.
[0025] Figure 2 It is a schematic structural diagram of the screening material unit in Embodiment 1 of the present utility model.
[0026] Figure 3 It is a schematic structural diagram of the outer wall of the side plate in Embodiment 1 of the present utility model.
[0027] Figure 4 It is a schematic structural diagram of the outer wall of the side plate in Embodiment 2 of the present utility model.
[0028] Figure 5 It is a schematic structural diagram of the telescopic rod in Embodiment 2 of the present utility model.
[0029] Explanation of reference numerals: 1, screening frame; 2, distributor; 3, screening material unit; 30, side plate; 300, sliding hole; 301, scale line; 31, receiving plate; 32, screen mesh; 33, pulp-making tank; 34, discharge plate; 4, under-screen material receiving tank; 40, first discharge port; 5, over-screen material receiving tank; 50, second discharge port; 51, vibration motor; 6, excitation motor; 7, adjustment mechanism; 70, rotating shaft; 71, adjustment rod; 72, baffle; 73, locking nut; 74, positioning column; 75, telescopic rod; 750, sleeve; 751, adjusting nut; 752, screw rod; 753, first collar; 754, rotating rod; 755, limiting block; 756, second collar. Detailed implementation manners
[0030] The following will Figure 1 - be described Figure 5 in further detail with reference to the accompanying drawings
[0031] Embodiment 1 of the present utility model discloses a laminated high-frequency screening machine with a multi-stage and multi-inclination structure. Embodiment 1
[0032] Referring to Figure 1 , a laminated high-frequency screening machine with a multi-stage and multi-inclination structure includes a screening frame 1, on which a plurality of distributors 2 are sequentially installed from top to bottom. Inside the screening frame 1, multiple layers of screening material units 3 are installed corresponding to the distributors 2, and a under-screen material receiving tank 4 and an over-screen material receiving tank 5 are installed corresponding to the screening material units 3. A first discharge port 40 is provided at the bottom of the under-screen material receiving tank 4, and a second discharge port 50 is provided at the bottom of the over-screen material receiving tank 5. A vibration motor 51 is installed on the over-screen material receiving tank 5, and the vibration motor 51 is used to clean the high-concentration over-screen materials accumulated at the bottom. An excitation motor 6 is installed at the top of the screening frame 1, and the excitation motor 6 drives the screening frame 1 and other structures to vibrate to realize the screening function of the pulp.
[0033] Reference Figure 2 , the screening unit 3 includes two side plates 30 arranged obliquely. Between the two side plates 30, a receiving plate 31, a screen 32, a pulp-making tank 33 and a discharge plate 34 are arranged in sequence from top to bottom. Among them, multiple groups of the screen 32 and the pulp-making tank 33 are provided. The pulp passes through multiple screens 32 for screening, and the pulp-making tank 33 is arranged between two adjacent sections of the screen 32. When the pulp is screened by a section of the screen 32, the concentration is relatively high. In order not to affect the screening effect, water can be added and diluted through the pulp-making tank 33 to meet the screening requirements of the next section.
[0034] Reference Figure 2 and Figure 3 , the laminated high-frequency screening machine further includes an adjusting mechanism 7 for adjusting the inclination angle of the screen 32, and the angle adjustment range is 15°-25°. The adjusting mechanism 7 includes a rotating shaft 70. The rotating shaft 70 is fixedly connected to the bottom end of the screen 32 and is rotatably connected to the side plate 30. An arc-shaped sliding hole 300 is opened on the side plate 30. The top end of the screen 32 is fixedly connected with an adjusting rod 71, and the adjusting rod 71 slides up and down through the sliding hole 300.
[0035] Reference Figure 2 and Figure 3 , a baffle 72 is fixedly connected to the adjusting rod 71. The baffle 72 is arc-shaped and abuts against the inner wall of the side plate 30. The baffle 72 is used to block the sliding hole 300 during the sliding process of the adjusting rod 71 along the sliding hole 300 to prevent the pulp from leaking. A locking nut 73 is threadedly connected to the end of the adjusting rod 71. The locking nut 73 serves as a limiting member to limit the adjusting rod 71. The locking nut 73 abuts against the outer wall of the side plate 30, thereby fixing the adjusting rod 71. A scale line 301 for displaying the inclination angle is engraved on the outer wall of the side plate 30 along the extending direction of the sliding hole 300. The staff can conveniently adjust the screen 32 to the required inclination angle through the scale line 301, and then use the locking nut 73 to fix the adjusting rod 71.
[0036] The implementation principle of Embodiment 1 is as follows: During operation, the pulp is fed into the screening unit 3 through the distributor 2. The screen frame 1 participating in high-frequency vibration drives the pulp to vibrate at the same time, so that the materials and water in the pulp smaller than the mesh holes of the screen 32 pass through the screen 32 and are collected in the under-screen material receiving tank 4 and discharged through the first discharge port 40. The materials larger than the mesh holes of the screen 32 enter the over-screen material receiving tank 5 through vibration and self-weight and are discharged through the second discharge port 50.
[0037] The staff can move the adjusting rod 71 within the sliding hole 300 to adjust the inclination angle of the sieve mesh 32, and then use the locking nut 73 to fix the adjusting rod 71. During the adjustment process, the scale line 301 can be referred to to ensure the accuracy of the adjustment angle. Most of the fine-grained materials will pass through the sieve meshes 32 of the first and second sections for sufficient screening. The sieve mesh 32 of the third section can increase the residence time of the pulp on the sieve surface by reducing the sieve surface inclination angle, achieving the effects of further dehydration and reducing the water content of the oversize material, thereby effectively solving the problem of water leakage during discharging. The low water content product obtained can directly fall onto the belt conveyor for transportation. Embodiment 2
[0038] Refer to Figure 4 and Figure 5 In this embodiment, the difference from Embodiment 1 is that in this embodiment, the positioning column 74 and the telescopic rod 75 are used as limit members to limit the adjusting rod 71. The positioning column 74 is fixedly connected to the outer wall of the side plate 30, and the telescopic rod 75 is installed between the positioning column 74 and the adjusting rod 71. The telescopic rod 75 includes a sleeve 750, and the sleeve 750 is a cylindrical structure with one end open. The open end of the sleeve 750 is fixedly connected with an adjusting nut 751.
[0039] Refer to Figure 5 The adjusting nut 751 is internally threaded with a screw rod 752. One end of the screw rod 752 away from the sleeve 750 is fixedly connected with a first collar 753, and the first collar 753 is sleeved on the positioning column 74. A rotating rod 754 passes through the closed end of the sleeve 750. Two limit blocks 755 are fixedly connected to the rotating rod 754. One of the limit blocks 755 is located inside the sleeve 750 and the other is located outside the sleeve 750. The end of the rotating rod 754 is fixedly connected with a second collar 756, and the second collar 756 is sleeved on the adjusting rod 71.
[0040] The implementation principle of Embodiment 2 is as follows: When it is necessary to change the position of the adjusting rod 71, the staff rotates the adjusting nut 751. The adjusting nut 751 drives the sleeve 750 to move axially along the screw rod 752. The telescopic rod 75 rotates around the positioning column 74, and the distance between the adjusting rod 71 and the positioning column 74 changes, thereby changing the position of the adjusting rod 71 within the sliding hole 300. After the operation is completed, the telescopic rod 75 supports the adjusting rod 71 to limit the movement of the adjusting rod 71. The entire adjustment operation is not only simple and convenient, but also convenient for the staff to observe the change process of the inclination angle of the sieve mesh 32 in real time through the scale line 301.
[0041] The above are all the preferred embodiments of the present invention. The protection scope of the present invention is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.
Claims
1. A multi-stage multi-angle laminated high-frequency screening machine, comprising a screening unit (3), the screening unit (3) comprising side plates (30) and a screen (32) arranged between the side plates (30), characterized in that: The device also comprises an adjusting mechanism (7), the adjusting mechanism (7) comprising a rotating shaft (70), an adjusting rod (71) and a stopper for fixing the adjusting rod (71), the rotating shaft (70) being fixed on the screen (32) and being rotatably connected to the side plate (30), the side plate (30) being provided with a sliding hole (300), the adjusting rod (71) being fixed on the screen (32) and slidingly moving up and down through the sliding hole (300).
2. The multi-stage multi-angle laminated high-frequency screening machine according to claim 1 is characterized in that: The outer wall of the side plate (30) is provided with scale lines (301) for identifying the inclination angle.
3. The multi-stage multi-angle laminated high-frequency screening machine according to claim 1 is characterized in that: A baffle (72) for shielding the sliding hole (300) is arranged on the adjusting rod (71), and the baffle (72) is close to the inner wall of the side plate (30).
4. The multi-stage multi-angle laminated high-frequency screening machine according to any one of claims 1 to 3, characterized in that: The limiting member is a locking nut (73), the locking nut (73) is threadedly connected to the adjusting rod (71), and the locking nut (73) abuts against the outer wall of the side plate (30).
5. The multi-stage multi-angle laminated high-frequency screening machine according to any one of claims 1 to 3, characterized in that: The limiting member comprises a positioning column (74) and a telescopic rod (75); the positioning column (74) is fixed to the outer wall of the side plate (30); and the telescopic rod (75) is hinged between the positioning column (74) and the adjusting rod (71).
6. The multi-stage multi-angle laminated high-frequency screening machine according to claim 5 is characterized in that: The telescopic rod (75) comprises a sleeve (750), which is a cylindrical structure with one end open. An adjusting nut (751) is fixedly connected to the open end of the sleeve (750), and a screw rod (752) is internally threadedly connected to the adjusting nut (751). A first collar (753) is fixedly connected to the end of the screw rod (752), and the first collar (753) is sleeved on the positioning column (74). A second collar (756) is rotatably connected to the closed end of the sleeve (750), and the second collar (756) is sleeved on the adjusting rod (71).
7. The multi-stage multi-angle laminated high-frequency screening machine according to claim 6 is characterized in that: The second sleeve ring (756) is fixedly connected with a rotating rod (754), which is rotatably inserted into the closed end of the sleeve (750). The rotating rod (754) is fixedly connected with two limit blocks (755), one of which is located inside the sleeve (750) and the other is located outside the sleeve (750).