Novel plane rotary screen

Abstract

The utility model provides a novel plane rotary screen, and belongs to the technical field of plane rotary screens. Comprising a cover body and a screen mesh, the screen mesh comprises a plurality of protruding contact blocks arranged on the screen mesh, and gaps are reserved between the adjacent protruding contact blocks; the current-conducting plates are distributed on the screen mesh at intervals, and the current-conducting plates on the same longitudinal line are distributed at intervals; and the convex contact blocks and the conductive plates are arranged at intervals in a staggered manner. By arranging the protruding contact blocks, when materials roll and slide on the screen, electrostatic charges can be dispersed through more point contact, electrostatic accumulation of a single point is reduced, by arranging the conductive plate, the connecting wire and the guide wire, an electrostatic discharge path is formed, and when the materials make contact with the flow guide plate in the screening process, the static charges can be dispersed through the static charges. Static charges accumulated on the materials can be quickly released to the ground through the flow guide plate, and therefore continuous accumulation of static electricity on the materials is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of plane rotary screens, in particular to a novel plane rotary screen. Background Art

[0002] The flat rotary screen is a device used for screening and grading powdered materials or pellet feed in feed mills. It is also widely used for screening and grading raw materials and finished products in various industries such as grain, food, chemical, sugar, mining, papermaking, etc.

[0003] At present, when the existing flat rotary screen is screening chemical plastic particles, resins and other materials, the materials are constantly rubbing against the screen surface, and the particles collide with each other, which will generate static electricity due to friction. Once chemical plastic particles, resins and other materials generate static electricity, it is difficult to dissipate through the material itself and is easy to accumulate on the surface. The mutual attraction caused by static electricity will cause the material particles to stick together and not easily pass through the screen. Therefore, the present application provides a new type of flat rotary screen to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a novel plane rotary screen to solve the problem that when the existing plane rotary screen is screening chemical plastic particles, resins and other materials, the materials generate static electricity, causing the materials to stick together and cause screen blockage.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A novel planar rotary screen comprises: a cover body, a screen, comprising: a plurality of raised contact blocks arranged on the screen, with gaps between adjacent raised contact blocks; a plurality of conductive plates distributed on the screen at intervals, and the conductive plates on the same longitudinal line are distributed at intervals; the raised contact blocks and the conductive plates are arranged in staggered intervals; a plurality of guide wires arranged on the conductive plates, and one side of the guide wires passes through the cover body; a connecting wire arranged on the side of the guide wire passing through the cover body; and the connecting wire is connected to the ground through a grounding wire; the raised contact blocks are made of insulating material, and the conductive plates are made of conductive material.

[0007] It also includes: the raised contact block is arranged in a dome shape, a cone shape or a hemispherical shape.

[0008] It also includes: the raised contact blocks are in a rectangular array.

[0009] It also includes: the distance between two adjacent raised contact blocks is the same.

[0010] It also includes: the front and rear sides of the conductive plate are both stepped.

[0011] It also includes: a side of the conductive plate close to the material is wavy or sawtooth-shaped, and the conductive plate divides the screen into three equally divided interval bodies.

[0012] It also includes: the three interval bodies are divided into a first interval, a second interval and a third interval from left to right.

[0013] It also includes: a feed port, which is connected and arranged on the cover body, and the feed port includes: a feed pipe, which is connected and arranged on the cover body; and a material distribution frame, which is arranged in the feed pipe.

[0014] It also includes: the material distribution frame is in an inverted cone shape, and a plurality of drop holes are provided on the surface of the material distribution frame.

[0015] It also includes: a plurality of through holes, which are arranged on the conductive plate, and the through holes are randomly arranged.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] In the above scheme, by setting up raised contact blocks, when the material rolls and slides on the screen, the static charge can be dispersed through more point contacts, reducing the static electricity accumulation at a single point. By setting up conductive plates, connecting wires and guide wires, a static electricity release path is formed. When the material contacts the guide plate during the screening process, the static electricity accumulated in the material can be quickly released to the ground through the guide plate, thereby avoiding the continuous accumulation of static electricity on the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of a new type of flat rotary screen;

[0020] Figure 2 It is a cross-sectional view of the box structure;

[0021] Figure 3 Schematic diagram of the screen structure;

[0022] Figure 4 is a schematic diagram of the conductive plate structure;

[0023] Figure 5 for Figure 2 A magnified view of middle;

[0024] Figure 6 This is a cross-sectional view of the feed port.

[0025] [Reference Signs]

[0026] 1. Guide wire; 2. Connecting wire; 3. Cover body; 4. Feed port; 5. Screen; 6. Raised contact block; 7. Conductive plate; 8. Through hole; 9. Interval body; 91. First interval; 92. Second interval; 93. Third interval; 41. Feed pipe; 42. Distribution frame.

[0027] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0028] The following is a detailed description of a novel flat rotary screen provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, an embodiment of the utility model provides a novel planar rotary screen, comprising: a cover body 3, a screen 5, comprising: a plurality of raised contact blocks 6, which are arranged on the screen 5, and gaps are left between adjacent raised contact blocks 6; a plurality of conductive plates 7, which are distributed on the screen 5 at intervals, and the conductive plates 7 on the same longitudinal line are distributed at intervals; the raised contact blocks 6 and the conductive plates 7 are arranged alternately and at intervals; a plurality of guide wires 1, which are arranged on the conductive plates 7, and one side of the guide wire 1 passes through the cover body 3; a connecting wire 2, which is arranged on a side of the guide wire 1 passing through the cover body 3; and the connecting wire 2 is connected to the ground through a grounding wire; the raised contact blocks 6 are made of insulating material, and the conductive plates 7 are made of conductive material.

[0030] By setting a raised contact block 6, selecting antistatic or conductive materials, such as conductive rubber, conductive plastic, etc., and coating an antistatic agent on the surface, it is helpful to quickly release static electricity and reduce adsorption between particles; through a conductive plate 7, selecting antistatic or conductive materials, such as conductive plastic, plated metal or carbon fiber reinforced plastic, etc., to promote the conduction and dissipation of static electricity, and antistatic coating or texture design can be used for surface treatment to further reduce static electricity accumulation; antistatic material is selected to make the screen 5, such as antistatic stainless steel wire, carbon fiber blended material or a metal wire mesh with an antistatic coating on the surface.

[0031] like Figure 3As shown, it also includes: the raised contact block 6 is set in a dome shape, a cone shape or a hemispherical shape. By setting it in a dome shape, the dome-shaped surface makes it easier for the material to roll rather than simply slide when moving on the screen 5. This rolling motion helps to disperse the material, reduce the aggregation between particles, and further reduce the adhesion and blockage caused by electrostatic adsorption; by setting it in a cone shape, the conical protrusion can form a certain slope, guiding the material to flow downward along the slope, which helps the material to pass through the screen 5 more smoothly and reduce the possibility of blockage; by setting it in a hemispherical shape, it can provide a larger contact area, better break the electrostatic adsorption force of the material, and its rounded shape also helps to reduce damage to the material, especially suitable for screening vulnerable materials such as plastic particles and resins.

[0032] like Figure 3 As shown, it also includes: the raised contact blocks 6 are arranged in a rectangular array. By setting a rectangular array distribution, the material can be guided to move in a specific direction, which helps the material to form a more orderly flow path and reduce cross accumulation and blockage; a circular array distribution can also be set to help the material to be evenly dispersed in all directions and reduce the accumulation of static electricity caused by directional friction.

[0033] like Figure 3 As shown, the distance between two adjacent raised contact blocks 6 is the same, which helps to achieve more uniform material distribution, thereby improving screening accuracy.

[0034] like Figure 3 and Figure 4 As shown, the conductive plate 7 also includes: both the front and rear sides are stepped. By setting the step shape, each step can be used as a temporary foothold for materials, and then slide to the next step. The gaps between the steps can promote air flow and reduce static electricity accumulation.

[0035] like Figure 3 and Figure 4 As shown, the conductive plate 7 also includes: the side close to the material is wavy or sawtooth-shaped, and the conductive plate 7 divides the screen 5 into three equally divided interval bodies 9. By setting the conductive plate 7 in a wavy or sawtooth shape, multiple small flow guide areas can be formed on the conductive plate 7, and a tiny separation area is formed between each wave crest or sawtooth, which helps to disperse the material when passing through and reduce static adsorption. The wave or sawtooth shape can also guide the airflow, which helps to take away the static electricity accumulated between the particles.

[0036] like Figure 3As shown, it also includes: three interval bodies 9 are divided into a first interval 91, a second interval 92 and a third interval 93 from left to right. The first interval 91, the feed dispersion area: the first interval close to the feed port 4, helps to quickly break up the incoming material clumps, reduce the risk of blockage caused by large pieces of material directly impacting the screen 5, and promote the initial release of static electricity; the second interval 92, the fine screening area: the middle interval, further refines the dispersion process, and on the basis of the preliminary dispersion of the material, through continuous physical contact and the guidance of the conductive plate 7, more refined static control and material classification are achieved; the third interval 93, the discharge acceleration area: the last interval close to the discharge port, to ensure that the static electricity of the material is effectively released before leaving the screen 5, and accelerate the flow of the material.

[0037] like Figure 1 , Figure 2 and Figure 6 As shown, it also includes: a feed port 4, which is connected and arranged on the cover body 3, and the feed port 4 includes: a feed pipe 41, which is connected and arranged on the cover body 3; and a material distribution frame 42, which is arranged in the feed pipe 41.

[0038] like Figure 6 As shown, the material distribution frame 42 is also provided with a plurality of drop holes on the surface of the material distribution frame 42. By providing the material distribution frame 42, the material can be evenly dropped onto the screen 5.

[0039] like Figure 4 As shown, it also includes: a plurality of through holes 8, which are arranged on the conductive plate 7, and the through holes 8 are randomly arranged. By setting the through holes 8, circular holes, square holes, triangular holes or other polygonal holes can be designed to help improve the contact between the material and the air.

[0040] The technical solution provided by the utility model is connected to the external wiring through the connecting wire 2, the external wiring is connected to the ground, the flat rotary screen is running, the material enters the feed pipe 41, the material is dispersed into the screen 5 through the dividing frame 42, the material rolls and slides between the raised contact blocks 6 on the surface of the screen 5, and the three areas separated by the conductive plate 7 guide the orderly flow of the material to reduce accumulation. As the material contacts and moves with the conductive plate 7, the accumulated static electricity is quickly released to the ground through the conductive plate 7, the guide wire 1, the connecting wire 2 and the grounding wire to reduce static adsorption, and finally the screened material is discharged through the discharge port.

[0041] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A new type of flat rotary screen, comprising: The cover body (3) and the screen (5) are characterized by comprising: A plurality of raised contact blocks (6) are arranged on the screen (5), with gaps being left between adjacent raised contact blocks (6); A plurality of conductive plates (7) are distributed at intervals on the screen (5), and the conductive plates (7) on the same longitudinal line are distributed at intervals; The raised contact blocks (6) and the conductive plates (7) are arranged in a staggered manner; A plurality of guide wires (1) are arranged on the conductive plate (7), and one side of the guide wire (1) passes through the cover body (3); A connecting line (2) is arranged on a side of the guide line (1) passing through the cover body (3); The connecting wire (2) is connected to the ground via a grounding wire; The raised contact block (6) is made of insulating material, and the conductive plate (7) is made of conductive material.

2. The novel flat rotary screen according to claim 1 is characterized in that: Also includes: The raised contact block (6) is arranged in a dome shape, a cone shape or a hemispherical shape.

3. The novel flat rotary screen according to claim 1 is characterized in that: Also includes: The raised contact blocks (6) are in a rectangular array.

4. The novel flat rotary screen according to claim 1 is characterized in that: Also includes: The distance between two adjacent raised contact blocks (6) is the same.

5. The novel flat rotary screen according to claim 1 is characterized in that: Also includes: The front and rear sides of the conductive plate (7) are both stepped.

6. The novel flat rotary screen according to claim 1 is characterized in that: Also includes: The side of the conductive plate (7) close to the material is wavy or sawtooth-shaped, and the conductive plate (7) divides the screen (5) into three equally divided compartment bodies (9).

7. The novel flat rotary screen according to claim 6 is characterized in that: Also includes: The three interval bodies (9) are divided into a first interval (91), a second interval (92) and a third interval (93) from left to right.

8. The novel flat rotary screen according to claim 1 is characterized in that: Also includes: A feed inlet (4) is arranged in communication with the cover body (3), and the feed inlet (4) comprises: A feed pipe (41) connected to and arranged on the cover body (3); A material distribution frame (42) is arranged in the feeding pipe (41).

9. The novel flat rotary screen according to claim 8 is characterized in that: Also includes: The material distribution frame (42) is in an inverted cone shape, and a plurality of drop holes are provided on the surface of the material distribution frame (42).

10. The novel flat rotary screen according to claim 1 is characterized in that: Also includes: A plurality of through holes (8) are arranged on the conductive plate (7), and the through holes (8) are randomly arranged.

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