Efficient star-shaped discharger sealing device

Abstract

The utility model discloses an efficient star-shaped discharger sealing device, and relates to the technical field of material conveying equipment. The device comprises side plates, a rotating shaft, a separation baffle and a rubber plate, the side plates are arranged at the two ends of the rotating shaft, and the separation baffle is welded between the two side plates and connected with the rotating shaft. And the gap between the rubber plate and the inner wall of the discharger shell is reduced to 0.5 mm from the traditional 3 mm. According to the structure, flexible sealing design is adopted, soft contact sealing is achieved through elastic deformation of rubber materials, and the problem of air channeling during powder conveying under high air pressure is effectively solved. And meanwhile, the plasticity design of the rubber plate allows deformation buffering to be generated when the hard materials pass through, and the equipment is prevented from being clamped and stopped. The utility model has the characteristics of excellent sealing performance, strong impact resistance and long maintenance period, and is particularly suitable for conveying scenes containing hard materials, such as a cement kiln system and the like.

Description

Technical Field

[0001] This utility model relates to the field of rotary valves, and in particular to a high-efficiency rotary valve sealing device. Background Technology

[0002] Rotary rotary valves, as key equipment in cement kiln production systems, are widely used in material conveying. However, the internal structure design of existing rotary valves is relatively simple, and their core problem lies in insufficient sealing performance. Specifically, when conveying powdery materials and under high internal air pressure, the gap between the rotary valve and the shell (usually 3mm) leads to severe air leakage, causing air leakage between the upper and lower pipes. This not only causes unstable material feeding but also prevents the equipment from properly performing its airlock and continuous conveying functions.

[0003] Furthermore, the existing rotary valve's baffles employ a rigid structural design, making them highly susceptible to jamming and equipment malfunctions when encountering hard, lumpy materials. While traditional rigid baffles maintain a certain structural strength, their lack of flexible contact makes it difficult to further reduce the gap, limiting the sealing effect. These problems severely restrict the stable operation of rotary valves under complex conditions, especially in scenarios with high air pressure, powdery materials, or materials containing hard particles, significantly reducing equipment lifespan and operating efficiency. Therefore, there is an urgent need for a new sealing device that can optimize sealing performance and withstand the impact of hard materials. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency rotary valve sealing device to reduce air leakage in the upper and lower pipes of the rotary valve and stabilize its normal material feeding function.

[0005] This utility model is achieved by the following technical solution: a high-efficiency star-shaped unloader sealing device, characterized in that it includes side plates, a rotating shaft, a partition baffle and a rubber plate, wherein the side plates are disposed at both ends of the rotating shaft, the partition baffle is disposed between the side plates at both ends, and a rubber plate is disposed on the top of the partition baffle.

[0006] Furthermore, the partition baffle is welded to the side plate on both sides and to the rotating shaft at the bottom.

[0007] Furthermore, a large gap is left between the partition baffle and the inner shell of the rotary valve, and a rubber plate is installed at the top of the partition baffle. Only a 0.5mm gap is reserved between the rubber plate and the inner shell of the rotary valve.

[0008] Furthermore, the partition baffle is provided with a number of mounting holes, and the rubber plate is provided with corresponding mounting holes. The partition baffle and the rubber plate are connected by connecting bolts passing through the mounting holes on the partition baffle and the rubber plate.

[0009] Furthermore, one side of the rubber sheet is attached to the partition baffle, and the other side is provided with a connecting plate.

[0010] Furthermore, the connecting bolts also pass through the connecting plate, and the connecting bolts press the connecting plate and the partition baffle together, so that the rubber plate is firmly connected between the connecting plate and the partition baffle.

[0011] Furthermore, the height of the partition baffle is less than the radius of the side plate.

[0012] The beneficial effects of the high-efficiency rotary valve sealing device described in this utility model include:

[0013] By optimizing the original rigid partition baffle's 3mm gap to a 0.5mm flexible sealing structure and replacing the traditional metal baffle with a 6mm thick rubber sheet, the elastic deformation capability of the rubber material is utilized to achieve a soft contact seal with the shell. This design significantly reduces air leakage, increases airlock efficiency by over 80%, and completely solves the problem of air leakage during the conveying of powdery materials under high air pressure, ensuring continuous and stable material feeding.

[0014] The malleable design of the rubber sheet overcomes the limitations of traditional rigid baffles. When hard lumps are mixed in with the material, the rubber sheet can absorb the impact through localized deformation, preventing equipment shutdown caused by jamming.

[0015] The flexible sealing structure reduces rigid friction on the rotor and housing of the rotary valve, avoiding the problem of accelerated wear caused by excessively small gaps in traditional metal baffles. Meanwhile, the corrosion resistance and fatigue resistance of the rubber material further extend the replacement cycle of the sealing components.

[0016] This invention optimizes the existing equipment structure locally, without requiring a complete replacement of the equipment or adjustment of the main transmission system. It has a short modification cycle and low cost, and is especially suitable for the rapid upgrading of existing cement kiln systems, thus having high industrial application value. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. 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 the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a high-efficiency rotary valve sealing device;

[0019] In the diagram, 1-side plate, 2-rotating shaft, 4-separation baffle, 5-rubber plate, 6-connecting plate, 7-connecting bolt. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] like Figure 1 As shown, a high-efficiency rotary valve sealing device includes side plates 1, a rotating shaft 2, a partition baffle 4, and a rubber plate 5. The side plates 1 are located at both ends of the rotating shaft 2, and the partition baffle 4 is located between the two side plates 1. The partition baffle 4 is welded to the side plates 1 on both sides and to the rotating shaft 2 at its bottom. The height of the partition baffle 4 is less than the radius of the side plates 1, leaving a large gap between the partition baffle 4 and the inner shell of the rotary valve. The rubber plate 5 is located at the top of the partition baffle 4, with only a 0.5mm gap between the rubber plate 5 and the inner shell of the rotary valve.

[0023] The partition baffle 4 is provided with several mounting holes, and the rubber plate 5 is provided with corresponding mounting holes. The partition baffle 4 and the rubber plate 5 are connected by connecting bolts 7 passing through the mounting holes on the partition baffle 4 and the rubber plate 5.

[0024] The rubber sheet 5 is attached to the partition baffle 4 on one side and a connecting plate 6 is provided on the other side. The connecting bolt 7 also passes through the connecting plate 6. The connecting bolt 7 is used to press the connecting plate 6 and the partition baffle 4 together, so that the rubber sheet 5 is stably connected between the connecting plate 6 and the partition baffle 4.

[0025] The original rotary valve had a 3mm gap between the partition baffle 4 and the inner shell, resulting in air leakage. Furthermore, the rotary valve was prone to jamming and malfunction when hard, lumpy materials were present. To address this, the partition baffle 4 was replaced with a 6mm thick rubber plate 4, reducing the gap between it and the inner shell to 0.5mm. Even with hard materials inside, the rubber plate 4's plasticity ensures its normal operation. The soft contact between the rubber plate 4 and the inner shell further reduces the sealing gap to 0.5mm, providing better airlocking and ensuring proper material transport.

[0026] The above embodiments describe the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Modifications and variations made by those skilled in the art without departing from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A high efficiency star-type discharger seal apparatus, characterized by, Including side plate (1), rotating shaft (2), partition baffle (4) and rubber plate (5), wherein, side plate (1) is arranged at both ends of rotating shaft (2), partition baffle (4) is arranged between the side plate (1) at both ends, and rubber plate (5) is arranged at the top of partition baffle (4).

2. A high efficiency star-type discharger seal according to claim 1, wherein, The both sides of the partition baffle (4) are welded with the side plate (1), and the bottom is welded with the rotating shaft (2).

3. A high efficiency star-type discharger seal according to claim 1, wherein, There is a large gap between the partition baffle (4) and the internal shell of the star-shaped discharger, and a rubber plate (5) is arranged at the top end of the partition baffle (4), and only a 0.5mm gap is reserved between the rubber plate (5) and the internal shell of the star-shaped discharger.

4. A high efficiency star-type discharger seal according to claim 1, wherein, A plurality of mounting holes are arranged on the partition baffle (4), and corresponding mounting holes are arranged on the rubber plate (5), and the partition baffle (4) and the rubber plate (5) are connected by connecting bolts (7) passing through the mounting holes on the partition baffle (4) and the rubber plate (5).

5. A high efficiency star-type discharger seal according to claim 4, wherein, One side of the rubber plate (5) abuts against the partition baffle (4), and the other side is provided with a connecting plate (6).

6. A high efficiency star-type discharger seal according to claim 5, wherein, The connecting bolt (7) also passes through the connecting plate (6), and the connecting plate (6) and the partition baffle (4) are pressed by the connecting bolt (7), so that the rubber plate (5) is stably connected between the connecting plate (6) and the partition baffle (4).

7. A high efficiency star-type discharger seal according to claim 1, wherein, The height of the partition baffle (4) is less than the radius of the side plate (1).

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