Dust removal mechanism for screen of rolling screening machine
By building a vibration unit and sliding parts into the rolling screening machine screen, the problem of screen clogging is solved, automatic dust removal is achieved, the screen life is extended and the screening efficiency is improved.
Patent Information
- Application Number
- CN202422397032.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In the process of screening carbon black particles, the existing rolling screening machine is easily clogged by small particles or powder, resulting in failure of the grading and screening function, and the cleaning process is time-consuming and labor-intensive.
A dust removal mechanism for a rolling screening machine screen is designed, which has a built-in vibrating unit and a sliding part. The gravity of the sliding part is used to realize automatic reciprocating vibration and dust removal during the rotation of the screen. The support and shock absorption effects of the guide part and the spring are combined to avoid excessive knocking force from damaging the screen.
It realizes automatic dust removal of the screen, prolongs the service life of the screen, improves the screening efficiency, has a compact structure and reliable operation.
Smart Images
Figure CN223382041U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rolling screening machines, in particular to a dust removal mechanism for a screen of a rolling screening machine. Background Art
[0002] The working principle of a rolling screen is that the screen drum moves in a uniform circular motion, causing the material to move downward along the inclined mesh surface, allowing each level of the screen to achieve the desired classification. In the carbon black production process, rolling screens are used to screen the carbon black particles after pelletization. During this screening process, small particles or entrained powder can be adsorbed on the screen. As the adsorbed material accumulates, it can clog the screen mesh, rendering the screen's grading and screening function ineffective.
[0003] However, most of the current rolling screening machines are not equipped with a dust removal structure for the drum, which requires the machine to be stopped to clean the screen during actual operation. This method is time-consuming and labor-intensive. Based on this, in order to further optimize the applicability of the existing rolling screening machine, we propose a dust removal mechanism for the screen of the rolling screening machine. Utility Model Content
[0004] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose a dust removal mechanism for a rolling screening machine screen.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] Design a dust removal mechanism for a rolling screening machine screen, including:
[0007] A frame with a rotatable screen built in;
[0008] A driving device for driving the screen to rotate is fixed on the outside of the frame, and at least one rapping unit is distributed inside the screen;
[0009] Among them, the vibrating unit includes a guide member connected to the inside of the screen and a sliding member sliding on the outside of the guide member. The sliding member changes its sliding direction following the circumferential rotation of the screen, so that when its gravity direction deviates from the center of the screen, it knocks and vibrates the inner wall of the screen.
[0010] Furthermore, a feed port is provided on the side of the frame, and a plurality of discharge ports are provided on the bottom.
[0011] Furthermore, the cross section of the screen is a tapered tubular structure, and the tapered tubular structure is placed horizontally in the frame;
[0012] Wherein, the end of the conical tubular structure with a smaller diameter is close to the feed port.
[0013] Furthermore, three discharge ports are provided, two of which are located below the screen, and the other is located on the side of the opening at the tail end of the screen.
[0014] Furthermore, the driving device is a reduction motor fixed on the outside of the frame, and is rotatably connected to a central shaft inside the frame. The central shaft is dynamically connected to the reduction motor through a transmission structure.
[0015] Furthermore, a plurality of rapping units are distributed circumferentially along the plane of the radial section of the central axis, and the plurality of rapping units in the plane form a group, wherein a plurality of groups of rapping units are arranged along the axial direction of the central axis.
[0016] Furthermore, both ends of the screen are fixed to the central axis;
[0017] Wherein, one end of the guide member is fixed on the central shaft.
[0018] Furthermore, springs are fixed at both ends of the guide member, and the springs are used to resist the sliding member and transmit the knocking force.
[0019] Furthermore, one end of the spring is freely arranged toward the center of the guide member, and the other end is fixed to the guide member.
[0020] Furthermore, the guide member is a rod, and the end of the guide member is connected to the skeleton on the inner surface of the screen.
[0021] The utility model proposes a dust removal mechanism for a rolling screening machine screen, which has the following beneficial effects: in the utility model, a plurality of vibration units are built into the interior of the screen, and the structure is compact and does not take up too much space. Secondly, the gravity of the sliding part itself is utilized to realize automatic reciprocating vibration dust removal during the rotation of the screen. In addition, the guide part not only guides the vibration sliding part, but also supports and strengthens the screen drum. During the knocking process, the spring plays a shock-absorbing role, avoiding damage to the screen due to excessive knocking force generated by instantaneous knocking, thereby extending the service life of the screen. When the screen is rotating, the mechanism can realize automatic reciprocating vibration dust removal, and the overall structure is simple, the operation is reliable, and the dust removal effect is good. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a structural diagram of the utility model;
[0023] Figure 2 for Figure 1 Schematic diagram of the cross-section structure along AA.
[0024] In the figure: 1. Frame; 11. Feed port; 12. Discharge port; 2. Screen; 3. Drive device; 31. Reducer motor; 32. Center shaft; 4. Vibrating unit; 41. Guide member; 42. Sliding member; 43. Spring. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0026] Reference Figure 1-2 This is an embodiment of the present invention, specifically, it discloses a dust removal mechanism for a rolling screening machine screen, the dust removal structure includes a frame 1 with a rotatable screen 2 built in, the rotation axis of the screen 2 is perpendicular to the height direction of the frame 1, of course, the screen 2 described in this embodiment is a cylindrical structure;
[0027] A driving device 3 for driving the screen 2 to rotate is fixed on the outside of the frame 1, and at least one rapping unit 4 is distributed inside the screen 2;
[0028] Among them, the rapping unit 4 includes a guide member 41 connected to the inside of the screen 2, and a sliding member 42 sliding on the outside of the guide member 41. The sliding member 42 changes the sliding direction following the circumferential rotation of the screen 2, so that when its gravity direction deviates from the center of the screen 2, the inner wall of the screen 2 is knocked and vibrated.
[0029] In some embodiments, in the utility model, a feed port 11 is provided on the side of the frame 1, and a plurality of discharge ports 12 are provided at the bottom thereof. A portion of the feed port 11 extends into the side opening of the screen 2 to enable screening of the granulated carbon black particles added to the interior of the screen 2.
[0030] Furthermore, in this embodiment, the cross section of the screen 2 is a tapered tubular structure, and the tapered tubular structure is placed horizontally in the frame 1;
[0031] Among them, the end with a smaller diameter of the conical tubular structure is close to the feed port 11. During specific operation, the screen 2 makes uniform circular motion, and the material moves downward along the inclined mesh surface, so that the screens at each level can achieve the purpose of grading. Of course, technical personnel in the relevant field know that the filter hole diameter of the screen 2 is different in each grading section, thereby ensuring the effect of graded discharge.
[0032] On the basis of the above embodiments, in order to realize the separate discharge of the classified materials, three discharge ports 12 are provided in the embodiment of the utility model, two of which are located below the screen 2, and the other discharge port 12 is located on the side of the opening at the tail end of the screen 2, that is, the three-stage sorting effect is adopted in this embodiment. When the screening machine is screening the carbon black particles, three materials with different particle sizes can be discharged in stages.
[0033] In addition, in the embodiment of the present utility model, the driving device 3 is a reduction motor 31 fixed to the outside of the frame 1, and is rotatably connected to a central shaft 32 inside the frame 1. The central shaft 32 is dynamically connected to the reduction motor 31 through a transmission structure. Preferably, the transmission structure described in the present embodiment can be provided with a pulley and a synchronous belt transmission method. Of course, in other embodiments, those skilled in the art know that a chain and sprocket transmission method can also be used to realize the transmission between the reduction motor 31 and the central shaft 32. During specific operation, the reduction motor 31 drives the central shaft 32 to rotate in a uniform circular motion to realize the rotation drive of the screen 2.
[0034] It should be noted that in order to achieve a better dust removal effect, in this embodiment, a plurality of rapping units 4 are distributed circumferentially along the plane of the radial section of the central axis 32, and the plurality of rapping units 4 in the plane are a group, wherein a plurality of groups of rapping units 4 are arranged along the axial direction of the central axis 32, that is, in this embodiment, a plurality of rapping units 4 are distributed along the circumferential and axial directions of the central axis 32 to achieve knocking at different positions on the inner wall of the screen 2, thereby improving the dust removal effect on the screen 2. The specific number of rapping units 4 can be selected by technical personnel in the relevant field according to actual needs, and will not be elaborated here.
[0035] Furthermore, in this embodiment, both ends of the screen 2 are fixed to the central axis 32;
[0036] One end of the guide member 41 is fixed on the central shaft 32 . It should be noted that the guide member 41 in this embodiment is a rod, and the end of the guide member 41 is connected to the skeleton on the inner surface of the screen.
[0037] In a preferred embodiment, in the present invention, springs 43 are fixed at both ends of the guide member 41 , and the springs 43 are used to resist the sliding member 42 and transmit the knocking force.
[0038] It should be further explained that, in this embodiment, one end of the spring 43 is freely arranged toward the center of the guide member 41 , and the other end is fixed to the guide member 41 .
[0039] When working, the equipment is first started, and the screen 2 starts to rotate. The movement of a rapping unit 4 is taken as an example for explanation. Specifically, when the screen 2 rotates and drives the rapping unit 4 to run to the highest point, the sliding member 42 is located at the position of the guide member 41 close to the central axis 32 due to its own weight;
[0040] When the screen 2 continues to rotate downward, the rapping unit 4 also gradually runs to the lowest point. In the process of downward rotation, the sliding member 42 slides downward under the action of gravity, and finally hits the spring 43 at the end. The knocking force is transmitted to the screen 2, and the dust attached to the screen 2 is vibrated off.
[0041] When the rapping unit 4 rotates from the lowest point to the highest point, the sliding member 42 slides back to the position of the central axis 32, and the reciprocating cycle is repeated to achieve the purpose of continuously knocking and vibrating the screen 2 to remove dust.
[0042] The advantages of this institution are:
[0043] 1. The mechanism is located inside the screen 2, with a compact structure that does not take up too much space;
[0044] 2. Utilizing the gravity of the sliding member 42, automatic reciprocating vibration and dust removal are achieved during the rotation of the screen 2;
[0045] 3. The guide member 41 not only guides the rapping sliding member 42, but also supports and strengthens the screen drum;
[0046] 4. The spring 43 acts as a shock absorber to prevent the screen 2 from being damaged by excessive knocking force due to instantaneous knocking, thereby extending the service life of the screen 2.
[0047] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A dust removal mechanism for a rolling screening machine screen, characterized in that: include: A frame (1) having a rotatable screen (2) built therein; A driving device (3) for driving the screen (2) to rotate is fixed on the outside of the frame (1), and at least one rapping unit (4) is distributed inside the screen (2); The rapping unit (4) comprises a guide member (41) connected to the inside of the screen (2), and a sliding member (42) sliding on the outside of the guide member (41), wherein the sliding member (42) changes its sliding direction following the circumferential rotation of the screen (2) so as to perform a knocking vibration on the inner wall of the screen (2) when its gravity direction deviates from the center of the screen (2).
2. The dust removal mechanism for a rolling screening machine screen according to claim 1, characterized in that: A feed port (11) is provided on the side of the frame (1), and a plurality of discharge ports (12) are provided on the bottom.
3. The dust removal mechanism for a rolling screening machine screen according to claim 2, characterized in that: The cross section of the screen (2) is a conical tubular structure, and the conical tubular structure is placed horizontally in the frame (1); The end of the conical tubular structure with a smaller diameter is close to the feed port (11).
4. The dust removal mechanism for a rolling screening machine screen according to claim 3, characterized in that: Three discharge ports (12) are provided, two of which are located below the screen (2), and the other discharge port (12) is located on the side of the tail end opening of the screen (2).
5. The dust removal mechanism for a rolling screening machine screen according to claim 1, characterized in that: The driving device (3) is a reduction motor (31) fixed outside the frame (1), and is rotatably connected to a central shaft (32) inside the frame (1). The central shaft (32) is dynamically connected to the reduction motor (31) via a transmission structure.
6. The dust removal mechanism for a rolling screening machine screen according to claim 5, characterized in that: A plurality of rapping units (4) are distributed circumferentially along the plane of the radial section of the central axis (32), and the plurality of rapping units (4) in the plane form a group, wherein a plurality of groups of rapping units (4) are arranged in the axial direction of the central axis (32).
7. The dust removal mechanism for a rolling screening machine screen according to claim 5, characterized in that: Both ends of the screen (2) are fixed to the central axis (32); One end of the guide member (41) is fixed on the central shaft (32).
8. The dust removal mechanism for a rolling screening machine screen according to claim 1, characterized in that: Springs (43) are fixed at both ends of the guide member (41), and the springs (43) are used to resist the sliding member (42) and transmit the knocking force.
9. The dust removal mechanism for a rolling screening machine screen according to claim 8, characterized in that: One end of the spring (43) is freely arranged toward the center of the guide member (41), and the other end is fixed to the guide member (41).
10. A dust removal mechanism for a rolling screening machine screen according to any one of claims 1 to 9, characterized in that: The guide member (41) is a rod, and the end of the guide member (41) is connected to the skeleton on the inner surface of the screen.