Dust-proof vacuum flapper valve

Abstract

The utility model discloses a dustproof vacuum baffle valve, including the valve body, the one side of valve body is provided with the feed inlet, is equipped with the discharge port on the valve body, the discharge port extends to the valve body and forms the protruding portion protruding in the inner wall of valve body, be provided with the valve plate in the valve body, the surface of valve plate is contacted with protruding portion, the upper end of valve plate is connected with valve rod, valve rod is connected with drive mechanism, drive mechanism is through sealed processing, the utility model discloses through setting protruding in the inner wall of valve body and the discharge port protruding portion of wall thickness 3 5mm, cooperate the seal plate of detachable below valve plate and enhance the sealing, seal the drive mechanism simultaneously to reduce dust accumulation, prevent sealing failure and motion part jam, improve the reliability and service life of valve.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a dustproof vacuum baffle valve. Background Technology

[0002] In the reduction furnace production process of the magnesium smelting industry, a large amount of dust and fumes are continuously generated, posing a significant challenge to the production environment and equipment operation. The main components of the fumes originate from the combustion reactions of metals such as potassium, sodium, and magnesium in a high-temperature smelting environment. These fumes are often corrosive and irritating, and have complex compositions. Dust, on the other hand, is mainly generated during the charging and feeding process. Its particles are small, highly diffusive, and easily diffuse throughout the production space.

[0003] Currently, baffle valves are commonly installed in filling pipelines to control material transport and isolation during the filling process. However, in actual operation, due to the continuous contact between the aforementioned diffused fumes and dust and the pipeline valves, dust gradually adheres to the valve's sealing surface and moving parts. Simultaneously, the corrosive components in the fumes exacerbate component wear. Over time, this adhered dust can caking due to factors such as temperature changes and humidity, leading to a gradual failure of the valve's sealing performance. Moving parts may also become stuck and unable to move flexibly due to dust accumulation and caking.

[0004] Valve sealing failure and obstructed movement not only allow dust to further diffuse into the environment through valve gaps, exacerbating pollution and affecting operator health, but also potentially disrupt the production process due to improper material handling control. Furthermore, long-term dust accumulation accelerates wear and damage to valve components, shortens equipment lifespan, increases maintenance costs and downtime frequency, seriously threatening production continuity and stability, and posing significant potential production risks. Utility Model Content

[0005] The purpose of this utility model is to provide a dustproof vacuum baffle valve in order to solve the above problems.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution: A dustproof vacuum baffle valve includes: a valve body, an inlet on one side of the valve body, an outlet on the valve body, and an outlet extending into the valve body to form a protrusion protruding from the inner wall of the valve body; The valve body is provided with a valve plate, the surface of which is in contact with the protrusion. The upper end of the valve plate is connected to a valve stem, which is connected to a drive mechanism. The drive mechanism is sealed.

[0007] As a further description of the above technical solution, a sealing plate is detachably connected to the lower part of the valve plate by bolts, and the sealing plate is in contact with the protrusion.

[0008] As a further description of the above technical solution, the wall thickness of the protrusion is 3-5 mm.

[0009] As a further description of the above technical solution, a valve cover is provided at the upper end of the valve body, and the valve cover is detachably connected to the drive mechanism by bolts.

[0010] As a further description of the above technical solution, the driving mechanism includes a sleeve, a screw is provided inside the sleeve, the bottom of the screw is inserted into the interior of the valve stem, the screw is threadedly engaged with the valve stem, and a dustproof ring is provided at the upper end of the sleeve.

[0011] As a further description of the above technical solution, a nut is provided at the upper end of the valve stem, and an anti-rotation strip for the nut is provided inside the sleeve.

[0012] As a further description of the above technical solution, the edge of the nut is provided with a groove, and the anti-rotation strip of the nut is inserted into the groove.

[0013] As a further description of the above technical solution, the top of the protrusion is chamfered.

[0014] The beneficial effects of this utility model are as follows: This utility model features a protruding outlet that extends beyond the inner wall of the valve body and has a wall thickness of 3-5mm. This, combined with a removable sealing plate below the valve plate, enhances the seal and provides a sealing treatment for the drive mechanism. This reduces dust accumulation, prevents seal failure and jamming of moving parts, and improves the reliability and service life of the valve.

[0015] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the dustproof vacuum baffle valve of this utility model; Figure 2 This is a cross-sectional view of the dustproof vacuum baffle valve of this utility model; Figure 3 yes Figure 2 A partially enlarged schematic diagram.

[0017] Reference numerals in the attached diagram: 1. Valve body; 2. Inlet; 3. Outlet; 4. Protrusion; 5. Valve plate; 6. Valve stem; 7. Sealing plate; 8. Valve cover; 9. Sleeve; 10. Screw; 11. Dustproof ring; 12. Nut; 13. Nut anti-rotation strip; 14. Sealing ring; 15. Handwheel. Detailed Implementation

[0018] 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.

[0019] like Figures 1-3 As shown, in one embodiment, a dustproof vacuum baffle valve has a valve body 1, a feed inlet 2 on one side of the valve body 1, and a discharge outlet 3 on the valve body 1. The discharge outlet 3 extends into the valve body 1 to form a protrusion 4 protruding from the inner wall of the valve body 1. A valve plate 5 is provided inside the valve body 1. The surface of the valve plate 5 is in contact with the protrusion 4. A valve stem 6 is connected to the upper end of the valve plate 5. The valve stem 6 is connected to the drive mechanism, and the drive mechanism is sealed.

[0020] During operation, the valve plate 5 and valve stem 6 move downward under the drive of the drive mechanism, so that the valve plate 5 can move downward and come into contact with the protrusion 4 of the discharge port 3. Since the wall thickness of the protrusion 4 is only 3-5mm, that is, the wall thickness is relatively thin, it can effectively prevent dust from accumulating on the upper end surface of the thin wall of the protrusion 4, thereby preventing the sealing failure of the entire baffle valve caused by dust accumulation, which would lead to dust leakage and environmental pollution.

[0021] In one embodiment, a sealing plate 7 is detachably connected to the lower part of the valve plate 5 by bolts. The sealing plate 7 contacts the protrusion 4. The sealing plate 7 is provided at least at the edge of the valve plate 5. The lower surface of the sealing plate 7 is a smooth horizontal surface. By abutting against the upper end surface of the protrusion 4, a seal can be achieved.

[0022] In one embodiment, a valve cover 8 is provided at the upper end of the valve body 1. The valve cover 8 is detachably connected to the drive mechanism by bolts. At the same time, a sealing ring 14 is provided between the valve cover 8 and the valve body 1. By providing the sealing ring 14, the sealing performance of the entire valve can be further improved.

[0023] In one embodiment, the drive mechanism includes a sleeve 9, inside which a screw 10 is disposed. The bottom of the screw 10 is inserted into the valve stem 6, and the screw 10 and valve stem 6 are threaded together. A dustproof ring 11 is disposed at the upper end of the sleeve 9. A handwheel 15 is connected to the other end of the screw 10. By rotating the handwheel 15, the screw 10 can drive the valve stem 6 to move downward. Further, a nut 12 is disposed at the upper end of the valve stem 6, and a nut anti-rotation strip 13 is disposed inside the sleeve 9. The rotation of the screw 10 drives the nut 12 to move up and down, which in turn drives the valve stem 6 to move up and down. The nut anti-rotation strip 13 restricts the nut 12 to move only up and down, and at the same time, the nut anti-rotation strip 13 can seal the screw and screw hole that fixes the nut anti-rotation strip 13, which can effectively prevent dust / dust from entering the drive structure and causing the valve stem 6 to be obstructed. This can also ensure the function of the entire baffle valve to a certain extent.

[0024] In one embodiment, the edge of the nut 12 is provided with a groove, and the anti-rotation strip 13 is inserted into the groove, thereby restricting the nut 12 to move only up and down.

[0025] In one embodiment, the top of the protrusion 4 is chamfered, which can further reduce the wall thickness of the top of the protrusion 4, thereby reducing the accumulation of dust / dust and improving the sealing performance.

[0026] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dustproof vacuum baffle valve, characterized in that, include: The valve body has a feed inlet on one side and a discharge outlet on the valve body, which extends into the valve body to form a protrusion protruding from the inner wall of the valve body. A valve plate is provided inside the valve body, the surface of the valve plate is in contact with the protrusion, a valve stem is connected to the upper end of the valve plate, the valve stem is connected to the drive mechanism, and the drive mechanism is sealed. The drive mechanism includes a sleeve, inside which a screw is installed. The bottom of the screw is inserted into the valve stem, and the screw is threadedly engaged with the valve stem. A dustproof ring is provided at the upper end of the sleeve. The upper end of the valve stem is provided with a nut, and the inside of the sleeve is provided with a nut anti-rotation strip; The nut has a groove on its edge, and the anti-rotation strip of the nut is inserted into the groove.

2. The dustproof vacuum baffle valve according to claim 1, characterized in that, A sealing plate is detachably connected to the lower part of the valve plate by bolts, and the sealing plate is in contact with the protrusion.

3. The dustproof vacuum baffle valve according to claim 1, characterized in that, The wall thickness of the protrusion is 3-5 mm.

4. The dustproof vacuum baffle valve according to claim 1, characterized in that, The upper end of the valve body is provided with a valve cover, and the valve cover is detachably connected to the drive mechanism by bolts.

5. The dustproof vacuum baffle valve according to claim 1, characterized in that, The tip of the protrusion is chamfered.

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