Adjustable drum screen screening device

Abstract

The utility model discloses an adjustable drum screen screening device which comprises a rotary drum, a support and a screen mesh assembly, the rotary drum is obliquely arranged on the support, the screen mesh assembly is arranged on the outer circumference of the rotary drum, and the screen mesh assembly comprises a fixing plate, an inner fixing screen mesh, an outer adjusting screen mesh and an adjusting plate. Fixing plates are arranged on the inner side of the inner fixing screen and between the inner fixing screen and the outer adjusting screen respectively, adjusting plates are arranged on the outer side of the outer adjusting screen, the fixing plates, the inner fixing screen, the outer adjusting screen and the adjusting plates are connected and fixed through bolts, round holes are formed in the fixing plates, long adjusting holes are formed in the adjusting plates, and the bolts penetrate through the round holes and the adjusting plates. Meshes of the inner fixed screen mesh are the same as those of the outer adjusting screen mesh; the screening equipment is simple in structure and safe and reliable to operate, diversified requirements of grinding production are met more accurately, and the product quality and the production efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cylindrical screen screening, in particular to an adjustable cylindrical screen screening device. Background Technique

[0002] Screening technology has a wide range of applications in multiple industries. With the continuous development of the industrial field, the demand for controlling material particle size screening technology is also continuously increasing. From the current market scale, the market for screening equipment shows a steady growth trend, with good market prospects and prominent social benefits. There is an urgent need for efficient and accurate screening equipment and technology.

[0003] The screen hole size is one of the important indicators of the cylindrical screen, which determines the screening accuracy of the material; however, it often can only achieve rough particle size classification; this not only affects the use performance and working efficiency of the mill, but also reduces the product quality and production efficiency. Therefore, it is very necessary to design an adjustable screening cylindrical screen device from aspects such as energy utilization, production efficiency, and product quality, and conduct scientific and reasonable screening according to the characteristics of the material. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects, provide an adjustable cylindrical screen screening device, which can scientifically and reasonably adjust according to the characteristics of the screened material while increasing the number of screen layers, can adjust the size of the screen hole diameter, not only can improve the screening efficiency and screening quality, but also can reduce screen clogging, and effectively complete the separation of fine particles and coarse particles by particle size, and can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: an adjustable cylindrical screen screening device, including a rotating cylinder, a support and a screen assembly. The rotating cylinder is inclined and arranged on the support, and the screen assembly is arranged on the outer circumference of the rotating cylinder. The screen assembly includes a fixed plate, an inner fixed screen, an outer adjustable screen and an adjusting plate. Fixed plates are respectively arranged between the inner side of the inner fixed screen and between the inner fixed screen and the outer adjustable screen. The adjusting plate is arranged on the outer side of the outer adjustable screen. The fixed plate, the inner fixed screen, the outer adjustable screen and the adjusting plate are connected and fixed by bolts. Round holes are arranged on the fixed plate, and adjusting long holes are arranged on the adjusting plate. The bolts pass through the round holes and the adjusting plate. The mesh holes of the inner fixed screen and the outer adjustable screen are the same.

[0006] Further, the rotating cylinder is a long cylindrical screen tube. A rotating shaft is arranged in the rotating cylinder, and support rods are arranged on the rotating shaft. The support rods pass through the rotating cylinder and are fixedly connected with the inner fixed screen. The support rods are evenly distributed around the center of the rotating shaft.

[0007] Further, a bearing seat one and a bearing seat two are respectively arranged on the left and right sides of the support. The two ends of the rotating shaft are respectively installed in the bearing seat one and the bearing seat two. A feeding hopper is arranged on the support.

[0008] Further, a side bracket is provided on the left side of the bracket, and a reduction motor is provided on the side bracket. The output shaft of the reduction motor is connected to the rotating shaft through a coupling.

[0009] Further, a baffle is provided on the left side of the rotating drum. A U-shaped hole is provided at the lower part of the baffle, a handle is provided at the upper part of the baffle, and a side outlet is provided on the left side of the rotating drum, and the side outlet corresponds to the baffle.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. While increasing the number of sieve layers, it can be scientifically and reasonably adjusted according to the characteristics of the screening materials, and the size of the sieve holes can be adjusted. It can not only improve the screening efficiency and quality, but also reduce screen clogging, and effectively complete the separation of fine particles and coarse particles by particle size.

[0012] 2. Loosen the bolts, and the outer adjustable sieve can be adjusted left and right, so that the mesh holes of the inner fixed sieve and the outer adjustable sieve are staggered, so as to adjust the size of the sieve holes and control the particle size of different sieving. This screening equipment has a simple structure, safe and reliable operation, and can more accurately meet the diverse needs of grinding production, improving product quality and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic cross-sectional structure diagram of the present utility model taken along A-A;

[0015] Figure 3 is a schematic structural diagram of the rotating drum support structure of the present utility model;

[0016] Figure 4 is a schematic enlarged structure diagram at B of the present utility model;

[0017] Figure 5 is a schematic structural diagram of the baffle of the present utility model;

[0018] Figure 6 is a schematic structural diagram of the fixing plate of the present utility model;

[0019] Figure 7 is a schematic structural diagram of the adjusting plate of the present utility model.

[0020] In the figure: 1 speed reduction motor, 2 coupling, 3 long key, 4 bearing block one, 5 bearing block two, 6 support, 7 blanking hopper, 8 rotating cylinder, 9 screen assembly, 10 baffle, 11 support rod, 12 rotating shaft, 13 fixing plate, 14 inner fixed screen, 15 outer adjustable screen, 16 adjusting plate, 17 side support, 18 side outlet, 19 handle, 20 U-shaped hole, 21 round hole, 22 adjusting long hole. Detailed implementation mode

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0022] Please refer to Figure 1-7 , the present invention provides a technical solution: an adjustable cylindrical screen screening device, including a rotating cylinder 8, a support 6 and a screen assembly 9. The rotating cylinder 8 is inclined and arranged on the support 6, and the screen assembly 9 is arranged on the outer circumference of the rotating cylinder 8. The screen assembly 9 includes a fixing plate 13, an inner fixed screen 14, an outer adjustable screen 15 and an adjusting plate 16. The materials of the inner fixed screen 14 and the outer adjustable screen 15 are selected as high-quality wear-resistant high manganese steel to improve the wear resistance of the screening equipment. Fixing plates 13 are respectively arranged on the inner side of the inner fixed screen 14 and between the inner fixed screen 14 and the outer adjustable screen 15. The adjusting plate 16 is arranged on the outer side of the outer adjustable screen 15. The fixing plate 13, the inner fixed screen 14, the outer adjustable screen 15 and the adjusting plate 16 are connected and fixed by bolts. Round holes 21 are arranged on the fixing plate 13, and adjusting long holes 22 are arranged on the adjusting plate 16. Bolts pass through the round holes 21 and the adjusting plate 16. The mesh holes of the inner fixed screen 14 and the outer adjustable screen 15 are the same. Loosen the bolts, and the outer adjustable screen 15 can be adjusted left and right, so that the mesh holes of the inner fixed screen 14 and the outer adjustable screen 15 are staggered, so as to adjust the size of the screen holes and control the particle size of different screenings.

[0023] The rotary drum 8 is a long cylindrical sieve tube. A rotating shaft 12 is arranged in the rotary drum 8. A side support 17 is arranged on the left side of the support 6. A reduction motor 1 is arranged on the side support 17. The output shaft of the reduction motor 1 is connected to the rotating shaft 12 through a coupling 2. A support rod 11 is arranged on the rotating shaft 12. The support rod 11 passes through the rotary drum 8 and is fixedly connected to the inner fixed sieve mesh 14. The support rods 11 are evenly distributed around the center of the rotating shaft 12. For example, six support rods 11 are axially arranged, and the angles between the support rods 11 are all 60 degrees. The uniform distribution of the support rods 11 ensures uniform support force and guarantees the stable rotation of the rotary drum 8. The support rod 11 not only plays a role in supporting the rotary drum 8, but also passes through the rotary drum 8 to support the inner fixed sieve mesh 14. And the support rod 11 is fixed to the rotary drum 8 by welding to ensure a firm structure.

[0024] Bearing seats one 4 and bearing seats two 5 are respectively arranged on the left and right sides of the support 6. The two ends of the rotating shaft 12 are respectively installed in the bearing seats one 4 and bearing seats two 5. A feed hopper 7 is arranged on the support 6. The qualified materials screened by the sieve mesh assembly 9 are discharged to the next process through the feed hopper 7.

[0025] A baffle 10 is arranged on the left side of the rotary drum 8. A U-shaped hole 20 is arranged at the lower part of the baffle 10. A handle 19 is arranged at the upper part of the baffle 10. A side outlet 18 is arranged on the left side of the rotary drum 8. The side outlet 18 corresponds to the baffle 10. The unqualified materials in the rotary drum 8 and the unqualified materials between the rotary drum 8 and the sieve mesh assembly 9 are blocked by the baffle 10 and discharged through the side outlet 18.

[0026] The rotating shaft 12 is driven by the reduction motor 1 and the coupling 2. The materials to be screened are fed into the drum from the right side of the rotary drum 8. The rotary drum 8 is driven to rotate by the rotating shaft 12. The materials roll along the inner wall of the barrel of the rotary drum 8. During the rotation operation, the materials pass through the appropriate apertures on the sieve mesh assembly 9, and successively pass through the rotary drum 8, the inner fixed sieve mesh 14 and the outer adjustable sieve mesh 15, so that the coarse particles roll along the inner wall of the rotary drum 8, and the fine particles pass through the inner fixed sieve mesh 14 and the outer adjustable sieve mesh 15, thus realizing particle size classification and separation. The qualified materials flow into the feed hopper 7 through the sieve holes and enter the next process. Under the action of the baffle 10, the coarse materials are discharged from the side outlet 18 of the rotary drum 8.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. On the premise of not departing from the spirit and scope of the present invention, the present invention has various changes and improvements, and these changes and improvements all fall into the scope of the present invention claimed.

Claims

1. An adjustable drum screen screening device, comprising a drum (8), a support (6) and a screen assembly (9), characterized in that: The rotating drum (8) is arranged on the bracket (6) in an inclined manner. The screen assembly (9) is arranged on the outer circumference of the rotating drum (8). The screen assembly (9) comprises a fixed plate (13), an inner fixed screen (14), an outer adjustable screen (15) and an adjustable plate (16). Fixed plates (13) are respectively arranged on the inner side of the inner fixed screen (14) and between the inner fixed screen (14) and the outer adjustable screen (15). The adjustable plate (16) is arranged on the outer side of the outer adjustable screen (15). The fixed plate (13), the inner fixed screen (14), the outer adjustable screen (15) and the adjustable plate (16) are connected and fixed by bolts. A circular hole (21) is arranged on the fixed plate (13). An adjustable long hole (22) is arranged on the adjustable plate (16). The bolts pass through the circular hole (21) and the adjustable plate (16). The mesh size of the inner fixed screen (14) and the outer adjustable screen (15) is the same.

2. The adjustable drum screen screening device according to claim 1, characterized in that: The rotating drum (8) is a long cylindrical screen tube. A rotating shaft (12) is arranged in the rotating drum (8). Support rods (11) are arranged on the rotating shaft (12). The support rods (11) pass through the rotating drum (8) and are fixedly connected to the internal fixed screen (14). The support rods (11) are evenly distributed around the center of the rotating shaft (12).

3. The adjustable drum screen screening device according to claim 2, characterized in that: A bearing seat 1 (4) and a bearing seat 2 (5) are respectively arranged on the left and right sides of the bracket (6), and two ends of the rotating shaft (12) are respectively installed in the bearing seat 1 (4) and the bearing seat 2 (5), and a lower hopper (7) is arranged on the bracket (6).

4. The adjustable drum screen screening device according to claim 2, characterized in that: A side bracket (17) is arranged on the left side of the bracket (6), a reduction motor (1) is arranged on the side bracket (17), and an output shaft of the reduction motor (1) is connected to the rotating shaft (12) via a coupling (2).

5. The adjustable drum screen screening device according to claim 1, characterized in that: A baffle (10) is provided on the left side of the rotating drum (8), a U-shaped hole (20) is provided at the bottom of the baffle (10), a handle (19) is provided at the top of the baffle (10), and a side outlet (18) is provided on the left side of the rotating drum (8), the side outlet (18) corresponding to the baffle (10).

Images