A drum vibratory dewatering screen

Abstract

The utility model discloses a kind of roller vibration dewatering screen, including vibration seat, the upper end of vibration seat is equipped with rotatable middle shaft, the outer surface of middle shaft is equipped with the support round steel of uniform distribution, the outer side end between three support round steels longitudinally adjacent is equipped with channel steel, the whole formed support frame by middle shaft, support round steel and channel steel, it further includes uniform dewatering mechanism, uniform dewatering mechanism: it includes long steel plate, filter plate frame, filter cloth, sealing plate and drive assembly, this roller dewatering screen, filter plate frame is distributed in V type, improve the contact area of roller screen body and filter cloth and coal raw material, preliminary improve the dewatering efficiency of coal raw material, rotation and vibration effect can simultaneously act on coal raw material, under the double action of rotation and vibration, coal raw material will be constantly rolling and moving inside roller screen body, moisture in coal raw material is separated under the joint action of centrifugal force, vibration impact force and gravity quickly, realize that coal raw material is quickly uniform and efficient dewatering.

Description

Technical Field

[0001] This utility model relates to the field of coal washing and beneficiation technology, specifically to a drum vibrating dewatering screen. Background Technology

[0002] In the coal washing industry, coal dewatering is a crucial step, as the dewatering effect directly affects the storage, transportation, and subsequent use performance of coal. Existing coal dewatering equipment, such as traditional drum dewatering screens, mostly rely solely on drum rotation for dewatering, resulting in low dewatering efficiency and difficulty in meeting the needs of large-scale production. Although some equipment uses vibration dewatering, the vibration mode is singular and cannot be effectively combined with drum rotation, leading to uneven distribution of coal during the dewatering process, poor dewatering effect, and high residual moisture. Therefore, we propose a drum vibration dewatering screen. Utility Model Content

[0003] The technical problem this invention aims to solve is to overcome existing defects and provide a drum vibrating dewatering screen with a V-shaped filter plate frame, which increases the contact area between the drum screen body and filter cloth and the coal raw material, thus initially improving the dewatering efficiency of the coal raw material. The rotation and vibration effects can act on the coal raw material simultaneously. Under the dual action of rotation and vibration, the coal raw material will continuously tumble and move inside the drum screen body. The moisture in the coal raw material is quickly separated under the combined action of centrifugal force, vibration impact force and gravity, achieving rapid, uniform and efficient dewatering of the coal raw material, which can effectively solve the problems in the background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a drum vibrating dewatering screen, including a vibrating seat, a rotatable central shaft at the upper end of the vibrating seat, uniformly distributed supporting round steel on the outer surface of the central shaft, and channel steel between the outer ends of three longitudinally adjacent supporting round steel. The central shaft, supporting round steel and channel steel together form a support frame, and the screen also includes a uniform dewatering mechanism.

[0005] Uniform dewatering mechanism: It includes long steel plates, filter plate frames, filter cloth, sealing plates, and drive components. The long steel plates are all set on the outer surface of the channel steel. Filter plate frames are set between two adjacent annular channel steels. The two filter plate frames between two adjacent annular channel steels are arranged in a V-shape. Filter cloth is set in the middle of the inner wall of the filter plate frames. Sealing plates are set between the outer ends of the horizontally adjacent supporting round steels. The vertically adjacent ends of the filter plate frames and supporting round steels are attached to the adjacent ends of the sealing plates, which increases the contact area between the coal raw material and the filter cloth. The drive component is set on the upper end of the vibrating seat. The V-shaped distribution of the filter plate frames increases the contact area between the dewatering screen and the filter cloth and the coal raw material, initially improving the dewatering efficiency of the coal raw material. The rotation and vibration effects can act on the coal raw material simultaneously. Under the dual action of rotation and vibration, the coal raw material will continuously roll and move inside the dewatering screen. The water in the coal raw material is quickly separated under the combined action of centrifugal force, vibration impact force, and gravity, realizing rapid, uniform, and efficient dewatering of the coal raw material.

[0006] Furthermore, the uniform dewatering mechanism also includes ring ribs and end caps. The ring ribs are all arranged between two adjacent long steel plates in a ring shape, and the end caps are respectively arranged at the front and rear ends of the long steel plates. The ring ribs increase the structural strength between the two long steel plates, and the end caps increase the structural strength while also facilitating material feeding and discharging.

[0007] Furthermore, the drive assembly includes spring rubber seats, a vibration frame, and a vibration motor. The spring rubber seats are respectively located at the four upper corners of the vibration seat, and a vibration frame is provided between the upper ends of the four spring rubber seats. The vibration motors are respectively located at the middle of the front and rear ends of the upper end of the vibration frame. The input ends of the vibration motors are all electrically connected to the output ends of the external controller to provide vibration effect for the dewatering of coal raw materials.

[0008] Furthermore, the drive assembly also includes bearing housings, sprocket one, and sprocket two. The bearing housings are respectively located in the middle of the front and rear sides of the upper end of the vibrating frame. Both bearing housings are fixedly connected to the outer surface of the central shaft through internal bearings. Sprocket one is fixedly sleeved on the front end of the outer surface of the central shaft. A rotatable sprocket two is provided on the left side of sprocket one. Sprocket one and sprocket two are laterally adjacent and are connected by chain drive to provide stable transmission for the dewatering of coal raw materials.

[0009] Furthermore, the drive assembly also includes a gearbox, a coupling, and a motor. The gearbox is located on the upper left front side of the vibrating frame. The inner wall of the second sprocket is fixedly connected to the rear end of the outer surface of the gearbox output shaft. The motor is located at the front end of the vibrating frame via a support base. The input end of the motor is electrically connected to the output end of an external controller. A coupling is provided between the rear end of the motor output shaft and the front end of the gearbox reduction shaft to provide stable drive and vibration compensation for coal raw material dewatering.

[0010] Furthermore, it also includes diagonal bracing bars, which are evenly arranged inside the support frame. Each group of diagonal bracing bars is distributed in a crisscross pattern, increasing the structural strength inside the drum screen body.

[0011] Furthermore, it also includes a collection tank, which is located in the middle of the vibrating seat to facilitate the collection of moisture contained in the coal raw material.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This drum dewatering screen has the following advantages:

[0013] 1. The V-shaped distribution of the filter plate frame can increase the contact area between the filter cloth and the coal raw material, so that the coal raw material inside the drum screen can be evenly contacted with the filter cloth, thereby initially improving the dewatering efficiency of the coal raw material.

[0014] 2. The dewatering screen produces a vibration effect through a vibrating motor. The motor drives the drum screen body to rotate continuously through the vibration compensation of the coupling. Under the dual action of rotation and vibration, the coal raw material tumbles and moves continuously in the drum screen body, making full contact with the filter cloth. The moisture in the coal raw material is quickly separated under the combined action of centrifugal force, vibration impact force and gravity, and falls into the collection tank through the filter cloth, realizing the rapid, efficient and uniform dewatering of the coal raw material. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the uniform dehydration mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the dewatering screen of this utility model;

[0018] Figure 4 This is a schematic diagram of the diagonal brace structure of this utility model.

[0019] In the diagram: 1 Vibration seat, 2 Central shaft, 3 Supporting round steel, 4 Channel steel, 5 Uniform dewatering mechanism, 51 Long steel plate, 52 Filter plate frame, 53 Filter cloth, 54 Sealing plate, 55 Ring rib, 56 End cover, 57 Drive assembly, 571 Spring rubber seat, 572 Vibration frame, 573 Vibration motor, 574 Bearing seat, 575 Sprocket 1, 576 Sprocket 2, 577 Gearbox, 578 Coupling, 579 Motor, 6 Diagonal brace, 7 Collection trough. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This embodiment provides a technical solution: a drum vibrating dewatering screen, including a vibrating seat 1, a rotatable central shaft 2 at the upper end of the vibrating seat 1, and evenly distributed supporting round steels 3 on the outer surface of the central shaft 2. The supporting round steels 3 are distributed in a spoke-like pattern outward from the central shaft 2 as the center. A channel steel 4 is provided between the outer ends of three longitudinally adjacent supporting round steels 3. The central shaft 2, supporting round steels 3 and channel steel 4 form a support frame. It also includes a collection trough 7, which is set in the middle of the inside of the vibrating seat 1 to facilitate the collection of moisture contained in the coal raw material. It also includes a uniform dewatering mechanism 5.

[0022] Uniform dewatering mechanism 5: It includes long steel plates 51, filter plate frames 52, filter cloth 53, sealing plates 54, and drive assembly 57. The long steel plates 51 are all set on the outer surface of the channel steel 4. Filter plate frames 52 are set between two adjacent annular channel steels 4. The two filter plate frames 52 between two adjacent annular channel steels 4 are arranged in a V-shape. Filter cloth 53 is set in the middle of the inner wall of the filter plate frame 52. The mesh number of the filter cloth 53 is 200 mesh, which is used for water discharge. Sealing plates 54 are set between the outer ends of the horizontally adjacent supporting round steels 3. The vertically adjacent ends of the filter plate frames 52 and the supporting round steels 3 are all attached to the adjacent ends of the sealing plates 54, which increases the contact area between the coal raw material and the filter cloth 53. Uniform dewatering mechanism 5 also includes ring ribs 55 and end caps 56. The ring ribs 55 are all set on the annular phase Between two adjacent long steel plates 51, end caps 56 are respectively set at the front and rear ends of the long steel plates 51. The outer edges of the sealing plates 54 on both the front and rear sides are in contact with the inner walls of the vertically adjacent end caps 56. The outer edge of the sealing plate 54 in the middle is in contact with the inner wall of the long steel plate 51 and the inner wall of the ring rib 55 located in the middle. The long steel plates 51, filter plate frame 52, filter cloth 53, sealing plates 54, ring ribs 55 and end caps 56 form a dewatering screen. The support frame and the dewatering screen are combined to form a drum screen body. The drum screen body is distributed with a lower front and a higher rear. The ring ribs 55 increase the structural strength between the two long steel plates 51. The end caps 56 increase the structural strength and facilitate material feeding and discharging. The drive assembly 57 is set at the upper end of the vibrating seat 1. The drive assembly 57 includes a spring rubber seat 571 and a vibrating frame 57. 2. Vibration motor 573 and spring rubber seats 571 are respectively set at the four corners of the upper end of vibration seat 1. The spring rubber seats 571 absorb and buffer the vibration or impact energy of the equipment by combining the elasticity and damping characteristics of the rubber material with the supporting role of the spring. When an external force is applied, the rubber undergoes elastic deformation to slow down the transmission of vibration. At the same time, the internal molecular friction generates a damping effect, converting some mechanical energy into heat energy for dissipation. The spring provides rigid support and assists in rebound, ensuring system stability. This combination can effectively isolate vibration, reduce noise, and compensate for equipment displacement. It is widely used in industrial machinery vibration reduction. A vibration frame 572 is set between the upper ends of the four spring rubber seats 571. The vibration motor 573 is respectively set at the middle of the front and rear ends of the upper end of the vibration frame 572. The input terminals of motor 573 are electrically connected to the output terminals of an external controller to provide vibration for the dewatering of coal raw materials. The drive assembly 57 also includes bearing seats 574, sprocket one 575, and sprocket two 576. The bearing seats 574 are respectively located in the middle of the front and rear sides of the upper end of the vibrating frame 572. Both bearing seats 574 are fixedly connected to the outer surface of the central shaft 2 through internal bearings. Sprocket one 575 is fixedly sleeved on the front end of the outer surface of the central shaft 2. A rotatable sprocket two 576 is located on the left side of sprocket one 575. Sprocket one 575 and sprocket two 576 are laterally adjacent and connected to each other by chain drive. Sprocket boxes are provided on the outer surfaces of sprocket one 575 and sprocket two 576 to protect the sprockets from the influence of the external environment.To provide stable transmission for the dewatering of coal raw materials, the drive assembly 57 also includes a gearbox 577, a coupling 578, and a motor 579. The gearbox 577 is located on the upper left front side of the vibrating frame 572. The inner wall of the second sprocket 576 is fixedly connected to the rear end of the outer surface of the output shaft of the gearbox 577. The motor 579 is mounted on the front end of the vibrating base 1 via a support seat. The input end of the motor 579 is electrically connected to the output end of an external controller. A coupling 578 is provided between the rear end of the output shaft of the motor 579 and the front end of the reduction shaft of the gearbox 577. The coupling 578 is a quincunx-shaped flexible coupling. The quincunx structure provides high buffering performance, allows angular and radial offset, and is suitable for applications with frequent vibration. The system provides vibration compensation for motor 579, ensuring stable drive and vibration compensation for coal dewatering. It also includes inclined support bars 6, evenly distributed inside the support frame. Each group of inclined support bars 6 is crisscrossed, increasing the structural strength inside the drum screen. The filter plate frames 52 are V-shaped, increasing the contact area between the dewatering screen and filter cloth 53 and the coal, thus initially improving the dewatering efficiency. Rotation and vibration effects act simultaneously on the coal. Under the dual action of rotation and vibration, the coal continuously tumbles and moves inside the drum screen. Moisture in the coal is rapidly separated under the combined action of centrifugal force, vibration impact, and gravity, achieving rapid, uniform, and efficient dewatering.

[0023] The working principle of the drum vibrating dewatering screen provided by this utility model is as follows: When using the drum dewatering screen to dewater coal raw materials, the coal raw materials enter from the rear end cover 56 of the drum screen body, and after being dewatered by the drum screen body, they are discharged from the front end cover 56, thus achieving the dewatering of the coal raw materials. During this process, the external controller controls the vibration motor 573 to work. The vibration motor 573 generates excitation force to drive the vibration frame 572 to vibrate, and the drum screen body also vibrates accordingly. The spring rubber seat 571 provides support for the vibration of the vibration frame 572. The coal raw materials inside the drum screen body also vibrate accordingly and move forward continuously under the action of the inclined drum screen body. At the same time, the external controller controls the motor 579 to operate. The motor 579 drives the sprocket 576 to rotate through the linkage of the coupling 578 and the reduction of the reduction gearbox 577. The coupling 578 is a plum blossom-shaped elastic coupling. The plum blossom structure provides high buffering performance and allows angular and radial rotation. The offset design is suitable for applications with frequent vibrations, providing vibration compensation for motor 579. Because sprocket 1 575 and sprocket 2 576 are connected by chain drive, sprocket 1 575 also rotates, driving the central shaft 2 to rotate, and the drum screen body rotates accordingly, causing the coal material inside the drum screen body to tumble continuously. Since the two filter plate frames 52 between the two adjacent annular channel steels 4 are V-shaped, the coal material can make more full contact with the filter cloth 53 inside the filter plate frame 52. At this time, the vibration motor 573 drives the drum screen body to vibrate, and the motor 579 drives the drum screen body to rotate continuously through transmission. Under the dual action of rotation and vibration, the coal material tumbles and moves continuously inside the drum screen body, making full contact with the filter cloth 53. The moisture in the coal material is quickly separated under the combined action of centrifugal force, vibration impact force and gravity, passing through the filter cloth 53 and falling into the collection tank 7, realizing rapid, efficient and uniform dewatering of the coal material.

[0024] It is worth noting that the vibration motor 573 disclosed in the above embodiments is a YZS-10-4 vibration motor, the reduction gearbox 577 is a ZQ350-48.57-I reduction gearbox, and the motor 579 is a YE2-132M-8-3KW motor. The external controller controls the operation of the vibration motor 573 and the motor 579 using methods commonly used in the prior art.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A drum vibrating dewatering screen, comprising a vibrating seat (1), wherein the upper end of the vibrating seat (1) is provided with a rotatable central shaft (2), and the outer surface of the central shaft (2) is provided with uniformly distributed supporting round steel bars (3), and a channel steel bar (4) is provided between the outer ends of three longitudinally adjacent supporting round steel bars (3), and the central shaft (2), supporting round steel bars (3) and channel steel bars (4) form an integral support frame, characterized in that: It also includes a uniform dehydration mechanism (5); Uniform dehydration mechanism (5): It includes a long steel plate (51), a filter plate frame (52), a filter cloth (53), a sealing plate (54) and a drive assembly (57). The long steel plate (51) is set on the outer surface of the channel steel (4). A filter plate frame (52) is set between two adjacent channel steels (4) in a ring. The two filter plate frames (52) between two adjacent channel steels (4) in a ring are V-shaped. The filter cloth (53) is set in the middle of the inner wall of the filter plate frame (52). A sealing plate (54) is set between the outer ends of the horizontally adjacent support round steels (3). The vertically adjacent ends of the filter plate frame (52) and the support round steel (3) are attached to the adjacent ends of the sealing plate (54). The drive assembly (57) is set on the upper end of the vibrating seat (1).

2. A trommel dewatering screen according to claim 1, wherein: The uniform dehydration mechanism (5) further includes ring ribs (55) and end caps (56). The ring ribs (55) are all arranged between two adjacent long steel plates (51) in a ring, and the end caps (56) are respectively arranged at the front and rear ends of the long steel plates (51).

3. A trommel dewatering screen according to claim 1, wherein: The drive assembly (57) includes a spring rubber seat (571), a vibration frame (572), and a vibration motor (573). The spring rubber seats (571) are respectively located at the four upper corners of the vibration seat (1), and a vibration frame (572) is provided between the upper ends of the four spring rubber seats (571). The vibration motors (573) are respectively located at the middle of the front and rear ends of the upper end of the vibration frame (572). The input ends of the vibration motors (573) are all electrically connected to the output ends of the external controller.

4. A trommel dewatering screen according to claim 3, wherein: The drive assembly (57) also includes a bearing housing (574), a first sprocket (575), and a second sprocket (576). The bearing housing (574) is respectively located in the middle of the front and rear sides of the upper end of the vibrating frame (572). Both bearing housings (574) are fixedly connected to the outer surface of the central shaft (2) through internal bearings. The first sprocket (575) is fixedly sleeved on the front end of the outer surface of the central shaft (2). A rotatable second sprocket (576) is provided on the left side of the first sprocket (575). The first sprocket (575) and the second sprocket (576) are laterally adjacent and are connected by chain drive.

5. A trommel vibrating dewatering screen according to claim 4, characterised in that: The drive assembly (57) also includes a gearbox (577), a coupling (578), and a motor (579). The gearbox (577) is located on the left side of the front side of the upper end of the vibration frame (572). The inner wall of the second sprocket (576) is fixedly connected to the rear end of the outer surface of the output shaft of the gearbox (577). The motor (579) is located at the front end of the vibration seat (1) through a support base. The input end of the motor (579) is electrically connected to the output end of an external controller. A coupling (578) is provided between the rear end of the output shaft of the motor (579) and the front end of the reduction shaft of the gearbox (577).

6. A trommel vibratory dewatering screen according to claim 1, wherein: It also includes diagonal bracing bars (6), which are evenly arranged inside the support frame, and each group of diagonal bracing bars (6) is distributed in a cross shape.

7. A trommel vibrating dewatering screen according to claim 1, wherein: It also includes a collection trough (7), which is located in the middle of the interior of the vibrating seat (1).

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