CN112934693A

CN112934693A - Self-cleaning drum screen

Info

Publication number: CN112934693A
Application number: CN202110141707.4A
Authority: CN
Inventors: 许开华; 张宇平; 杨正新; 蔡德元; 宋华伟; 胡熊; 敖秀奕; 季强东
Original assignee: GEM Wuhan Urban Mining Industry Group Co Ltd
Current assignee: GEM Wuhan Urban Mining Industry Group Co Ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-06-11

Abstract

The invention relates to a self-cleaning drum screen, which comprises a filter cartridge, a rotating mechanism and a flow guide body, wherein the filter cartridge comprises a cylinder body and a filter screen, the cylinder body is of a cylindrical structure, a filter cavity communicated with two ends of the cylinder body is formed in the cylinder body along the axis direction of the cylinder body, a filter hole communicated with the filter cavity is formed in the side wall of the cylinder body, the filter screen is fixedly connected with the cylinder body and covers the filter hole, the cylinder body is obliquely arranged, the rotating mechanism is in transmission connection with the cylinder body and can drive the cylinder body to rotate around the axis of the cylinder body, the flow guide body is in a spiral line type and is coaxially and fixedly arranged. This automatically cleaning drum sieve is provided with the baffle of helix type in the barrel, and the barrel is when rotating, and the baffle also rotates along with the barrel, and the effect of water conservancy diversion is played inside to the spiral helicine baffle, promotes the material at the rotatory in-process downstream of barrel, drops from the opening part of barrel lower extreme, avoids the material to adhere to and influences the filtration separation effect on the barrel inner wall.

Description

Self-cleaning drum screen

Technical Field

The invention relates to the technical field of drum screens, in particular to a self-cleaning drum screen.

Background

The drum sieve is a machine widely applied in the sorting technology, and controls the sorting by controlling the particle size of particles. If the requirement of the aperture is met, the particles can pass through the sieve, and the purpose of screening by the drum sieve is achieved. For example, a drum screen may be used to drain the material to separate soluble and insoluble materials from the material.

In the use process of the existing rotary screen, in order to control and improve the screening efficiency, the material cannot move too fast in the rotary screen, otherwise, the screening is insufficient and incomplete, so that the rotary screen generally has a strictly regulated installation inclination angle, and generally the angle is about 5 degrees.

Though the time of material screening has been prolonged like this to the setting, but also lead to the material to remain easily and glue on the inner wall of drum sieve, influence the filter effect on the one hand, on the other hand leads to the workman to clear up regularly, reduces production efficiency.

Disclosure of Invention

Accordingly, there is a need for a self-cleaning trommel, which solves the problem of the prior art that the material is easily adhered to the inner wall of the trommel.

The invention provides a self-cleaning trommel, comprising: the cartridge filter, slewing mechanism and baffle, the cartridge filter includes barrel and filter screen, the barrel is the cylinder structure, set up the filter chamber at the inside its axis direction of edge of barrel and communicate the barrel both ends, filter hole intercommunication filter chamber has been seted up on the barrel lateral wall, filter screen and barrel fixed connection cover the filter hole, the barrel slope sets up, slewing mechanism is connected with the barrel transmission, can drive the barrel and rotate around its axis, the baffle is the helix type, set up on the barrel inner wall with the coaxial fixed of barrel, its helix direction is the same with the barrel rotation direction.

Furthermore, the filter screen covers and sets up on the barrel inner wall, and the baffle passes through filter screen and barrel inner wall fixed connection.

Further, the self-cleaning drum screen also comprises a spraying device, wherein the spraying device comprises a spraying head facing the filtering holes and used for spraying water to the filtering holes.

Furthermore, a plurality of spray headers are arranged above the cylinder along the axis direction of the cylinder and vertically downwards face the side wall of the cylinder.

Furthermore, automatically cleaning drum sieve still includes the frame, and the frame includes high frame, short frame and a plurality of roller components, and roller components is fixed respectively in the top of high frame and short frame, and high frame passes through roller components and is connected with the barrel upper end rotation, and short frame passes through roller components and is connected with the barrel lower extreme rotation.

Furthermore, two annular connecting parts extend from two ends of the cylinder body along the radial direction respectively, and the connecting parts are rotatably connected with the roller assemblies.

Furthermore, the rotating mechanism is in transmission connection with one of the roller assemblies, and the rotating mechanism can drive the connecting part to rotate through the roller assembly.

Further, the roller assembly is connected with the connecting part through threaded engagement or through friction transmission.

Further, the rotating mechanism is a motor.

Further, the inclination angle of the cylinder is 5 degrees.

Compared with the prior art, this automatically cleaning drum sieve is provided with the baffle of helix type in the barrel, and the barrel is when rotating, and the baffle also rotates along with the barrel, and the effect of water conservancy diversion is played inside to the spiral helicine baffle, promotes the material at the rotatory in-process downstream of barrel, drops from the opening part of barrel lower extreme, avoids the material to adhere to and influences the filtration separation effect on the barrel inner wall, still makes the workman still to need regularly to shut down the clearance simultaneously, reduces the treatment effeciency.

Drawings

FIG. 1 is a schematic structural view of a self-cleaning trommel provided in the present invention;

fig. 2 is a cross-sectional view of a self-cleaning trommel provided in the present invention.

Detailed Description

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.

Referring to fig. 1 and 2, the self-cleaning drum screen includes a filter cartridge 1, a frame 2, a rotating mechanism 3, a flow guiding body 4 and a spraying device 5, for washing the material and separating soluble substances and insoluble substances in the material.

In the present embodiment, the filter cartridge 1 includes a cylinder 11 and a filter screen 12. Wherein the barrel 11 is a hollow cylinder, and the inside of the barrel 11 is provided with filter chambers communicated with the two ends of the barrel 11 along the axis direction, and the two ends form an inlet and an outlet of materials. The side wall of the cylinder 11 is provided with a plurality of filtering holes 111 which are communicated with the internal filtering cavity, and the filter screen 12 is fixedly connected with the cylinder 11 and covers the filtering holes 111. The filter screen 12 is provided with a slit smaller than the filter hole 111 for intercepting the filter material. The filter 12 may be disposed on the outer surface of the cylinder 11 or on the inner surface of the cylinder 11, and in this embodiment, the filter 12 is fixedly disposed on the inner surface of the cylinder 11.

When the filter cartridge 1 is used, the filter cartridge needs to be obliquely arranged, an opening at the upper end of the filter cavity is an inlet, and an opening at the lower end of the filter cavity is an outlet. The material is put in from the inlet above, and the material slides down along the inner wall of the cylinder 11 in the filtering cavity by using gravity and falls out from the outlet below. Generally, in order to control and improve the screening efficiency, the material moving speed in the cylinder 11 cannot be too fast, otherwise the screening is insufficient and incomplete, so the cylinder 11 generally has a relatively strictly-defined installation inclination angle, and generally the angle is about 5 °.

In the present embodiment, the desired inclination of 5 ° is formed by disposing the filter cartridge 1 on the frame 2. The frame 2 comprises an elevated frame 21, a short frame 22 and a plurality of roller assemblies 23, wherein the elevated frame 21 is higher and the short frame 22 is shorter as the name suggests, and the filter cartridge 1 is placed on the elevated frame 21 and the short frame 22 to realize the tilting effect.

At least one roller assembly 23 is fixedly arranged on the top of each of the high frame 21 and the low frame 22, and the roller assemblies 23 are provided with rollers. In conformity with the roller assembly 23, two annular connecting portions 112 extend from two ends of the barrel 11 along the radial direction, and the connecting portions 112 are matched with the rollers of the roller assembly 23, and are nested and rotatably connected together. In this embodiment, the roller assembly 23 also serves as a bearing support for the stability of the barrel 11. Therefore, two roller assemblies 23 are fixedly arranged on the tops of the high frame 21 and the low frame 22, the connecting part 112 is rested on the two roller assemblies 23, and the connecting part 112 and the two roller assemblies 23 form a triangular structure.

The rotating mechanism 3 is in transmission connection with one of the roller assemblies 23, and the rotating mechanism 3 can drive the roller of the roller assembly 23 to rotate, and drive the connecting portion 112 to rotate through the roller of the roller assembly 23, so as to further drive the filter cartridge 1 to rotate. In this embodiment, the rotating mechanism 3 may be powered by a motor, and the connecting portion 112 is pressed against the roller of the roller assembly 23 under the action of the self gravity of the barrel 11, so as to form a static friction force between the two, by which the roller of the roller assembly 23 drives the connecting portion 112 to rotate. In other embodiments, the connecting portion 112 and the outer side surface of the roller assembly 23 may be provided with screw teeth, and the connecting portion 112 and the roller of the roller assembly 23 are connected through screw engagement and are driven through screw engagement, which is more reliable than friction drive.

The flow guide body 4 is in a spiral line shape, is coaxially and fixedly arranged in the cylinder body 11 with the cylinder body 11, and is fixedly connected with the inner wall of the cylinder body 11 through the filter screen 12. And the spiral direction of current carrier 4 is the same as the rotation direction of barrel 11. In the rotating process of the cylinder body 11, the flow guide body 4 also rotates along with the cylinder body, so that the material on the inner wall of the cylinder body 11 is driven by the flow guide body 4 to rotate along with the cylinder body and slide towards the outlet end.

The spraying device 5 comprises spraying heads 51 facing the filtering holes 111, and in the embodiment, a plurality of spraying heads 51 are arranged right above the cylinder 11 along the axial direction of the cylinder 11 and vertically downwards face the filtering holes 111 on the side wall of the cylinder 11 for spraying water to the filtering holes 111. Spray 5 may be self-contained or have spray header 51 connected to an external water source, such as city tap water, for providing a continuous flow of water to spray 5.

When the material feeding device is used, only the material needs to be gradually placed into the inlet, the material can slide along the inner wall of the cylinder body 11 under the action of gravity, and the cylinder body 11 can rotate around the axis under the driving of the rotating mechanism 3. And the spray head 51 of the spray device 5 continuously sprays clean water to the filter holes 111 on the cylinder 11 from top to bottom. The clean water penetrates into the filter cavity from the upper filter hole 111 through the filter screen 12 and contacts with the materials in the filter cavity to dissolve the soluble substances in the materials. The water with the soluble substances dissolved therein continuously flows downwards under the action of gravity, passes through the filter screen 12 from the filter hole 111 below the cylinder 11 and flows out, and a collecting device can be arranged right below the cylinder 11 and collects the water flowing out from the filter hole 111 below the cylinder 11 for recovering the soluble substances therein. The insoluble substance remained in the material falls from the outlet below the cylinder 11 under the guiding action of the flow guiding body 4, and a collecting device for collecting the insoluble substance in the material can also be preferably arranged at the outlet below the cylinder 11. Therefore, the separation of soluble substances and insoluble arrangement in materials can be realized through the self-cleaning drum screen.

The embodiment of the invention has the following beneficial effects: this automatically cleaning drum sieve is provided with the baffle of helix type in the barrel, and the barrel is when rotating, and the baffle also rotates along with the barrel, and the effect of water conservancy diversion is played inside to the spiral helicine baffle, promotes the material at the rotatory in-process downstream of barrel, drops from the opening part of barrel lower extreme, avoids the material to influence the filtration separation effect on attaching to the barrel inner wall, still makes the workman need regularly to shut down the clearance simultaneously, reduces treatment effeciency.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims

1. A self-cleaning trommel, comprising: cartridge filter, slewing mechanism and baffle, the cartridge filter includes barrel and filter screen, the barrel is the cylinder structure the intercommunication has been seted up along its axis direction in the barrel the filter chamber at barrel both ends seted up the filtration pore intercommunication on the barrel lateral wall the filter chamber, the filter screen with barrel fixed connection covers the filtration pore, the barrel slope sets up, slewing mechanism with the barrel transmission is connected, can drive the barrel rotates around its axis, the baffle is the helix type, with the coaxial fixed set up in of barrel on the barrel inner wall, its helix direction with the barrel rotation direction is the same.

2. The self-cleaning drum screen as claimed in claim 1, wherein the filter screen is covered on the inner wall of the drum body, and the flow guide body is fixedly connected with the inner wall of the drum body through the filter screen.

3. The self-cleaning trommel of claim 2, further comprising a spray device comprising a spray header directed towards said filter apertures for spraying water towards said filter apertures.

4. The self-cleaning trommel of claim 3, wherein a plurality of said spray headers are arranged above said drum in the direction of said drum axis, facing vertically downward toward said drum side wall.

5. The self-cleaning trommel of claim 2 further comprising a frame, wherein the frame comprises an elevated frame, a short frame and a plurality of roller assemblies, the roller assemblies are respectively fixedly arranged at the top ends of the elevated frame and the short frame, the elevated frame is rotatably connected with the upper end of the trommel body through the roller assemblies, and the short frame is rotatably connected with the lower end of the trommel body through the roller assemblies.

6. The self-cleaning trommel of claim 5, wherein two annular connecting portions extend radially from each end of the tubular body, said connecting portions being rotatably connected to the roller assemblies.

7. The self-cleaning trommel of claim 6, wherein said turning mechanism is drivingly connected to one of said roller assemblies, said turning mechanism being capable of turning said connecting portion via said roller assembly.

8. The self-cleaning trommel of claim 7, wherein said roller assembly is connected to said connection portion by a threaded engagement or a friction drive connection.

9. The self-cleaning trommel of claim 8, wherein said rotation mechanism is a motor.

10. The self-cleaning trommel of claim 1, wherein the cylinder inclination angle is 5 °.