Vibration isolation sealing structure for preventing deposited dust from sinking and vibrating screen
By adopting an L-shaped sealing gasket and an inclined guide plate design in the sealing structure of the vibrating screen, the wear problem caused by dust accumulation and settling of the sealing gasket is solved, achieving a long-term sealing effect and a clean production environment, thereby improving the stability and operating performance of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-20
AI Technical Summary
The existing vibration isolation and sealing structure of vibrating screens suffers severe wear of the sealing gaskets due to dust accumulation and settling, resulting in loss of sealing effect and affecting the production environment and equipment stability.
An L-shaped sealing gasket structure is designed, with the lower part of the sealing gasket horizontally installed between the flanges on the screen body side and the dust removal side. An inclined guide plate is set below the sealing gasket to prevent dust accumulation. Combined with a welded flange connection, the sealing performance is enhanced.
It effectively prevents dust leakage, maintains a long-term sealing effect, improves the cleanliness of the production environment, reduces equipment failures and safety hazards, and enhances the operating performance and stability of the vibrating screen.
Smart Images
Figure CN224010396U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of vibrating screen, concretely relates to a vibration isolation sealing structure and vibrating screen of preventing dust deposition. BACKGROUND
[0002] In the operation process of the vibrating screen, the discharge end of the screen body continuously outputs the screened material. At the same time, in this process, a large amount of dust is also generated along with the continuous vibration of the screen body. Therefore, the existing vibrating screen generally installs a dust removal device at the discharge end, and a vibration isolation sealing structure is arranged between the dust removal cover of the dust removal device and the discharge end of the screen body, so as to ensure that the dust removal cover can efficiently collect dust and reduce the adverse effects of the vibration of the vibrating screen on the dust removal cover and the surrounding equipment.
[0003] At present, as shown in the drawings of the specification, Figure 1 The vibration isolation sealing structure used by the existing vibrating screen generally adopts the following structure: a vertical flange is arranged at the discharge end of the screen body and the feed end of the dust removal cover, and a sealing gasket is arranged between the two vertical flanges through a horizontally arranged bolt, and the sealing gasket is a corrugated pipe structure made of rubber material or foamed polyurethane material. At this time, the sealing gasket can play a vibration isolation role by utilizing its elasticity, and the annular closed space formed by the sealing gasket and the flanges on both sides can play a sealing role, so as to reduce the leakage of dust and reduce the influence of the vibration of the screen body on the surrounding equipment.
[0004] However, through actual use and observation, it is found that the above-mentioned vibration isolation sealing structure has obvious defects. During the continuous operation of the vibrating screen, the discharge end of the screen body and the dust removal cover are in a sealed state, and the dust removal wind will form a vortex at the sealing position when flowing through this area. Moreover, the vortex wind formed will wrap part of the dust, which will be continuously brought into the interface position of the sealing gasket and the flange. At this time, with the passage of time, a large amount of dust will accumulate at this position, and the interface position of the sealing gasket will sink under the action of gravity; moreover, when the vibrating part of the vibrating screen continuously rubs the interface position of the sealing gasket where the dust has sunk during the operation process, the sealing gasket is easily damaged, thereby causing dust leakage and resulting in the loss of the original sealing effect of the vibration isolation sealing structure. UTILITY MODEL CONTENTS
[0005] The utility model aims at the problem that the vibration isolation sealing structure of the existing vibrating screen is easily damaged due to dust deposition during use, and proposes and designs a vibration isolation sealing structure and vibrating screen that can prevent dust deposition, overcome the above-mentioned problems, ensure the sealing effect of the sealing gasket, and improve the service life of the sealing gasket.
[0006] In order to achieve the above object, in one aspect, the utility model provides a dust deposition prevention and sinking vibration isolation sealing structure, it includes screen body side mounting flange and dust removal side mounting flan, screen body side mounting flange can be installed at the discharge end of vibrating screen, dust removal side mounting flange can be installed at the feed inlet of dust removal cover, a circle of sealing pad is arranged between the edge of screen body side mounting flange and the edge of dust removal side mounting flange, the shape of screen body side mounting flange and the shape of dust removal side mounting flange are all L shape, vertical part one of screen body side mounting flange and vertical part two of dust removal side mounting flange are oppositely arranged, horizontal part one of screen body side mounting flange is arranged at the lower end of vertical part one of screen body side mounting flange and is towards the direction away from dust removal side mounting flange, horizontal part two of dust removal side mounting flange is arranged at the lower end of vertical part two of dust removal side mounting flange and is towards the direction close to screen body side mounting flange, the lower part of sealing pad is horizontally installed between horizontal part one of screen body side mounting flange and horizontal part two of dust removal side mounting flange, the upper part of sealing pad is vertically installed between vertical part one of screen body side mounting flange and vertical part two of dust removal side mounting flange, so the sealing pad in the utility model adopts the L-shaped mounting structure as a whole, and the lower part is horizontally installed between horizontal part one of screen body side mounting flange and horizontal part two of dust removal side mounting flange, even if the dust is continuously brought into the sealing pad by the vortex wind during the continuous work of vibrating screen, the dust is difficult to accumulate at the interface position of the lower part of sealing pad and the corresponding mounting flange, thereby ensuring that the sealing state is still good after long time operation, effectively preventing dust leakage, ensuring the cleanliness of production environment, reducing the negative effects of dust accumulation on screening efficiency, equipment failure and safety hazards, and significantly improving the overall operation performance and stability of vibrating screen.
[0007] Further, the interface position between the lower part of the sealing pad and the horizontal part two of the dust removal side mounting flange is located on the vertical part one of the screen body side mounting flange away from the dust removal side mounting flange, to ensure that dust accumulation does not directly act on the interface position of the lower part of the sealing pad and the dust removal side mounting flange.
[0008] Further, the upper edge of the lower part of the sealing pad is installed on the horizontal part one of the screen body side mounting flange by vertically arranged bolts, and the lower edge of the lower part of the sealing pad is installed on the horizontal part two of the dust removal side mounting flange by vertically arranged bolts. At this time, the interface structure of the sealing pad and the corresponding mounting flange is vertically arranged, and the weight of dust accumulation does not directly act on the interface position of the lower part of the sealing pad.
[0009] Further, the sealing pad is a square flexible bellows and is arranged in an L shape between the screen body side mounting flange and the dust removal side mounting flange as a whole, and the material of the sealing pad is preferably rubber material or foamed polyurethane material.
[0010] In another aspect, the utility model provides a kind of vibrating screen, including screen body, the discharge end of screen body is provided with material receiving device, the upper end of material receiving device is equipped with dust hood, the side of dust hood is provided with feed inlet towards screen body, dust hood and the discharge end of screen body between feed inlet and screen body are provided with above-mentioned dust deposition prevention vibration isolation sealing structure, and by the dust deposition prevention vibration isolation sealing structure, on the basis of ensuring that dust hood can efficiently collect dust, reduce the adverse effects caused by vibrating screen vibration to dust hood and peripheral equipment.
[0011] Further, the screen body side mounting flange is welded and mounted on the outer ring of the discharge end of the screen body. At this time, compared with other methods such as bolt connection, the metallurgical structure formed by welding can tightly integrate the two into one, and ensure that the screen body side mounting flange can effectively resist the repeated stress generated by vibration in the long-term high-frequency and high-intensity vibration working environment of the vibrating screen, thereby greatly reducing the risk of loosening and falling off of the screen body side mounting flange.
[0012] Further, the dust removal side mounting flange is welded and mounted on the outer ring of the feed inlet of the dust hood, and this tight connection method eliminates the gap, thereby greatly improving the overall sealing performance, preventing dust from leaking from the edge of the feed inlet, ensuring stable and efficient operation of the dust hood, and effectively protecting the clean production environment.
[0013] Further, the horizontal part two of the dust removal side mounting flange is provided with an inclined flow guide plate near one end of the vertical part two of the dust removal side mounting flange, the inclined flow guide plate is located below the gap between the vertical part one of the screen body side mounting flange and the vertical part two of the dust removal side mounting flange, and above the material receiving device, and can guide the dust to fall directly into the material receiving device, thereby solving the sinking phenomenon caused by dust accumulation.
[0014] Further, the upper end of the dust hood is provided with an air inlet, and the dust hood is communicated with the corresponding dust removal equipment such as fan through the air inlet, to effectively guide the dust-containing airflow in the dust hood to rise and be sucked into the dust removal equipment.
[0015] From the above technical solutions, the utility model has the following advantages: in the utility model, the lower part of the sealing gasket is horizontally mounted between the horizontal part one of the screen body side mounting flange and the horizontal part two of the dust removal side mounting flange, and an inclined flow guide plate is arranged below the gap between the vertical part one of the screen body side mounting flange and the vertical part two of the dust removal side mounting flange. During continuous operation of the vibrating screen, even if some dust is continuously brought into the sealing gasket by the vortex wind, the dust is difficult to accumulate at the interface position between the lower part of the sealing gasket and the corresponding mounting flange, thereby ensuring that the sealing gasket can still maintain good sealing state after long-time operation, effectively preventing dust leakage, and ensuring the cleanliness of the production environment. BRIEF DESCRIPTION OF DRAWINGS
[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of an existing vibration isolation and sealing structure;
[0018] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of this utility model (the sealing gasket is not shown).
[0019] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model.
[0020] In the diagram: 1. Screen body; 2. Side mounting flange of screen body; 3. Sealing gasket; 4. Side mounting flange of dust removal; 5. Material receiving device; 6. Dust removal hood; 7. Air outlet; 8. Vertical section one; 9. Horizontal section one; 10. Horizontal section two; 11. Vertical section two; 12. Inclined guide plate. Detailed Implementation
[0021] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.
[0022] Example 1
[0023] like Figure 2 , Figure 3 As shown, this embodiment provides a vibration isolation and sealing structure to prevent dust accumulation and settling, which includes a screen body side mounting flange 2, a dust removal side mounting flange 4, and a sealing gasket 3 installed between the edge of the screen body side mounting flange 2 and the edge of the dust removal side mounting flange 4.
[0024] The screen-side mounting flange 2 and the dust-removing side mounting flange 4 are both L-shaped, with the vertical portion 8 of the screen-side mounting flange 2 and the vertical portion 11 of the dust-removing side mounting flange 4 facing each other. The horizontal portion 9 of the screen-side mounting flange 2 and the horizontal portion 10 of the dust-removing side mounting flange 4 are also facing each other. The horizontal portion 9 of the screen-side mounting flange 2 is located at the lower end of the vertical portion 8 of the screen-side mounting flange 2 and faces away from the dust-removing side mounting flange 4. The horizontal portion 10 of the dust-removing side mounting flange 4 is located at the lower end of the vertical portion 11 of the dust-removing side mounting flange 4 and faces towards the screen-side mounting flange 2. Preferably, the end of the horizontal portion 10 of the dust-removing side mounting flange 4 away from the vertical portion 11 is aligned with the end of the horizontal portion 9 of the screen-side mounting flange 2 away from the vertical portion 8.
[0025] The sealing gasket 3 is a square flexible corrugated tube made of flexible materials such as rubber or foamed polyurethane. The upper part of the sealing gasket 3 is vertically installed between the vertical part 8 of the screen body side mounting flange 2 and the vertical part 11 of the dust removal side mounting flange 4 by horizontally set bolts or other fasteners. The lower part of the sealing gasket 3 is horizontally installed between the horizontal part 9 of the screen body side mounting flange 2 and the horizontal part 10 of the dust removal side mounting flange 4 by vertically set bolts or other fasteners. The interface between the lower part of the sealing gasket 3 and the horizontal part 10 of the dust removal side mounting flange 4 is located on the side of the vertical part 8 of the screen body side mounting flange 2 away from the dust removal side mounting flange 4. At this time, the upper edge of the sealing gasket 3 is horizontally installed between the upper end of the vertical part 8 of the screen body side mounting flange 2 and the upper end of the vertical part 11 of the dust removal side mounting flange 4. The upper left part of the sealing gasket 3 is vertically installed between the left edge of the vertical part 8 of the screen body side mounting flange 2 and the left edge of the vertical part 11 of the dust removal side mounting flange 4. The upper right part of the sealing gasket 3 is vertically installed between the right edge of the vertical part 8 of the screen body side mounting flange 2 and the right edge of the vertical part 11 of the dust removal side mounting flange 4. The lower left part of the sealing gasket 3 is vertically installed between the left edge of the horizontal part 9 of the screen body side mounting flange 2. Between the left edge of the horizontal part 10 of the dust removal side mounting flange 4, the lower right part of the sealing gasket 3 is vertically installed between the right edge of the horizontal part 9 of the screen body side mounting flange 2 and the right edge of the horizontal part 10 of the dust removal side mounting flange 4. The lower edge of the sealing gasket 3 is vertically installed between the end of the horizontal part 9 of the screen body side mounting flange 2 away from the vertical part 8 and the end of the horizontal part 10 of the dust removal side mounting flange 4 away from the vertical part 11, thus forming an L-shaped structure with the lower part bent towards the vibrating screen, which is compatible with the shape of the screen body side mounting flange 2 and the shape of the dust removal side mounting flange 4.
[0026] In this embodiment, the sealing gasket 3 adopts an L-shaped installation structure, with its lower part horizontally installed between the horizontal part 9 of the screen body side mounting flange 2 and the horizontal part 10 of the dust removal side mounting flange 4. During continuous operation of the vibrating screen, even if the vortex wind carries some dust into the sealing gasket 3, the dust is unlikely to accumulate at the interface between the lower part of the sealing gasket 3 and the corresponding mounting flange. This ensures that it can maintain a good sealing state after long-term operation, effectively preventing dust leakage, ensuring a clean production environment, reducing the negative impacts on screening efficiency, equipment failure, and safety hazards caused by dust accumulation, and significantly improving the overall operating performance and stability of the vibrating screen.
[0027] Example 2
[0028] like Figure 3 As shown, this utility model provides a vibrating screen, including a screen body 1. A receiving device 5 is provided at the discharge end of the screen body 1. A dust collection hood 6 is installed at the upper end of the receiving device 5. An air inlet 7 is provided at the upper end of the dust collection hood 6, and the dust collection hood 6 is connected to a corresponding dust removal device such as a fan through the air inlet 7 to effectively guide the dust-laden airflow inside the dust collection hood 6 to rise and be sucked into the dust removal device. A feed inlet is provided on the side of the dust collection hood 6 facing the screen body 1, and a vibration-damping sealing structure to prevent dust accumulation and settling, as described in Embodiment 1, is provided between the feed inlet of the dust collection hood 6 and the discharge end of the screen body 1. This vibration-damping sealing structure ensures that the dust collection hood 6 can efficiently collect dust while reducing the adverse effects of the vibrating screen vibration on the dust collection hood 6 and surrounding equipment.
[0029] Specifically, in this second embodiment, the screen body side mounting flange 2 of the vibration isolation and sealing structure for preventing dust accumulation and settling is welded and installed on the outer ring of the discharge end of the screen body 1, and the horizontal part 9 of the screen body side mounting flange 2 is bent towards the feed end of the screen body 1; the dust removal side mounting flange 4 of the vibration isolation and sealing structure for preventing dust accumulation and settling is welded and installed on the outer ring of the feed inlet of the dust removal hood 6, and the horizontal part 10 of the dust removal side mounting flange 4 is bent away from the feed inlet of the dust removal hood 6. At the same time, this second embodiment also provides an inclined guide plate 12 on the horizontal part 10 of the dust removal side mounting flange 4 near the vertical part 11 of the dust removal side mounting flange 4. The inclined guide plate 12 is located below the gap formed between the vertical part 8 of the screen body side mounting flange 2 and the vertical part 11 of the dust removal side mounting flange 4, and above the receiving device 5. In this way, it can guide the dust to fall directly into the receiving device 5, thereby solving the settling phenomenon caused by dust accumulation.
[0030] Based on this, when the vibration screening operation is performed using the second embodiment, even if the scroll wind entrains part of the dust and continuously brings it into the sealing gasket 3, the dust is difficult to accumulate at the interface position of the lower part of the sealing gasket 3 and the corresponding mounting flange, thereby ensuring that it can still maintain a good sealing state after a long time of operation, effectively preventing dust leakage and ensuring the cleanliness of the production environment.
[0031] The above description of disclosed embodiments enables those skilled in the art to make or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will accord with the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A vibration isolation and sealing structure for preventing dust accumulation and settling, comprising a screen-side mounting flange (2) and a dust-side mounting flange (4), wherein the screen-side mounting flange (2) can be installed at the discharge end of the vibrating screen, and the dust-side mounting flange (4) can be installed at the inlet of the dust collector hood (6); a sealing gasket (3) is provided between the edge of the screen-side mounting flange (2) and the edge of the dust-side mounting flange (4); characterized in that, The shape of the screen body side mounting flange (2) and the dust removal side mounting flange (4) are both L-shaped. The vertical part one (8) of the screen body side mounting flange (2) and the vertical part two (11) of the dust removal side mounting flange (4) are arranged opposite to each other. The horizontal part one (9) of the screen body side mounting flange (2) is located at the lower end of the vertical part one (8) of the screen body side mounting flange (2) and faces away from the dust removal side mounting flange (4). The horizontal part two (10) of the dust removal side mounting flange (4) is located at the lower end of the vertical part two (11) of the dust removal side mounting flange (4) and faces closer to the screen body side mounting flange (2). The lower part of the sealing gasket (3) is horizontally installed between the horizontal part one (9) of the screen body side mounting flange (2) and the horizontal part two (10) of the dust removal side mounting flange (4). The upper part of the sealing gasket (3) is vertically installed between the vertical part one (8) of the screen body side mounting flange (2) and the vertical part two (11) of the dust removal side mounting flange (4).
2. The vibration-damping and sealing structure for preventing dust accumulation and settling according to claim 1, characterized in that, The interface between the lower part of the sealing gasket (3) and the horizontal part (10) of the dust removal side mounting flange (4) is located on the side away from the dust removal side mounting flange (4) on the vertical part (8) of the screen body side mounting flange (2).
3. The vibration-damping and sealing structure for preventing dust accumulation and settling according to claim 1, characterized in that, The upper edge of the lower part of the sealing gasket (3) is installed on the horizontal part of the screen body side mounting flange (2) by a vertically set bolt (9), and the lower edge of the lower part of the sealing gasket (3) is installed on the horizontal part of the dust removal side mounting flange (4) by a vertically set bolt (10).
4. The vibration-damping and sealing structure for preventing dust accumulation and settling according to claim 1, characterized in that, The sealing gasket (3) is a square flexible corrugated tube.
5. A vibrating screen, comprising a screen body (1), a receiving device (5) being provided at the discharge end of the screen body (1), a dust collector (6) being installed at the upper end of the receiving device (5), and a feed inlet being provided on the side of the dust collector (6) facing the screen body (1); characterized in that, A vibration isolation and sealing structure for preventing dust accumulation and settling is provided between the feed inlet of the dust collector hood (6) and the discharge end of the screen body (1) according to any one of claims 1-4.
6. The vibrating screen according to claim 5, characterized in that, The side flange (2) of the screen body is welded and installed on the outer ring of the discharge end of the screen body (1).
7. The vibrating screen according to claim 5, characterized in that, The dust removal side mounting flange (4) is welded and installed on the outer ring of the feed inlet of the dust removal hood (6).
8. The vibrating screen according to claim 5, characterized in that, An inclined guide plate (12) is provided on one end of the horizontal part two (10) of the dust removal side mounting flange (4) near the vertical part two (11) of the dust removal side mounting flange (4). The inclined guide plate (12) is located below the gap formed between the vertical part one (8) of the screen body side mounting flange (2) and the vertical part two (11) of the dust removal side mounting flange (4).
9. The vibrating screen according to claim 5, characterized in that, An air inlet (7) is provided at the upper end of the dust hood (6).