A dustproof head for venting storage tanks

Abstract

A dustproof head for venting a storage tank includes a concave shell with a convex plate. A top cover is mounted on the convex plate. The concave shell has multiple baffles with multiple windows. A concave cover is welded to the back of each baffle. The two sides of the concave cover are right-angled triangular structures. The projection of the windows along the horizontal direction is located on the vertical wall of the concave cover. A notch is provided on the vertical wall of the concave cover. An outer clamping plate and an inner clamping plate are welded to the inner wall of the concave cover. The outer and inner clamping plates are vertically arranged with a gap between them. An insert frame is inserted into the gap between the outer and inner clamping plates, and a dustproof bag is attached to the insert frame. This invention uses the inclined baffles to block the movement of dust, thereby intercepting it at the front of the baffles. The partitions, rectangular openings, and vertical baffles further enhance the dust blocking effect, reducing the amount of dust trapped in the dustproof bag and extending the filtration time.

Description

Technical Field

[0001] This utility model relates to the field of calcium powder storage technology, and in particular to a dustproof head for venting storage tanks. Background Technology

[0002] To prevent the moisture content of industrially produced feed calcium stone powder from increasing during storage, it is often stored in large storage tanks. This airtight storage method avoids the problem of calcium powder absorbing moisture. For easy addition of calcium powder, an exhaust port is usually installed at the top of the storage tank, and a filter membrane is installed on the exhaust port. The filter membrane can prevent calcium powder from overflowing. However, it has been found that over time, the ultrafine powder will cause the filter membrane to become clogged, thus affecting the exhaust of the storage tank. In addition, the filter membrane is located inside the exhaust pipe, which is connected to an induced draft fan. Therefore, there are problems with cleaning or replacing the filter membrane, as well as the short lifespan of the filter membrane. Utility Model Content

[0003] This utility model provides a dustproof head for venting storage tanks, which solves the shortcomings of the prior art, improves the dustproof filtration effect and service life, and is easy to clean, thus having strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:

[0005] A dustproof head for venting a storage tank includes a concave shell welded to the middle section of the storage tank's vent pipe, with a convex plate formed by bending the upper end of the concave shell inward, and a top cover plate installed on the convex plate by screws.

[0006] Multiple baffles are arranged side by side inside the concave shell and on the lower side of the upper cover plate. The baffles are inclined inside the concave shell, and the upper end of the baffles is inclined in the direction of airflow. Multiple windows are opened on the baffles. A concave cover is welded to the back of the baffles. The two sides of the concave cover are right-angled triangular structures. The projection of the windows along the horizontal direction is located on the vertical wall of the concave cover. Notches are opened on the vertical wall of the concave cover. An outer clamping plate and an inner clamping plate are welded to the inner wall of the concave cover. The outer clamping plate and the inner clamping plate are arranged vertically and there is a gap between the outer clamping plate and the inner clamping plate. An insert frame is inserted into the gap between the outer clamping plate and the inner clamping plate, and a dustproof bag is attached to the insert frame.

[0007] Furthermore, the baffle has forward-facing bends on both sides with sloping plates, and multiple partitions are provided between the sloping plates, with the partitions located between two adjacent windows.

[0008] Furthermore, the partition has multiple rectangular openings, and vertical baffles are welded to the rectangular openings extending vertically downwards.

[0009] Furthermore, an upper retaining plate is welded to the inner wall of the upper cover plate. The upper retaining plate is inserted into the front side of the baffle to limit the upper end of the baffle. A lower retaining plate is welded to the lower inner side of the concave shell. Multiple concave sleeves are welded to the rear side of the lower retaining plate. A plug is formed at the lower end of the baffle and is inserted into the concave sleeve.

[0010] Furthermore, horizontal convex edges are welded to the outer walls of both sides of the concave cover. The rear end of the convex edge is formed with a limiting groove. The upper end of the concave cover is open, and a lower frame is provided at the upper end of the concave cover. An inclined fixing plate is bent at the front end of the lower frame and abuts against the rear side of the baffle. A filter membrane is provided on the upper side of the lower frame, and an upper frame is provided on the upper side of the filter membrane. The upper frame, lower frame and filter membrane are connected and fixed by multiple screws. The lower end of the screw is inserted into the limiting groove, and the upper end of the screw cap abuts against the lower wall of the convex edge.

[0011] Furthermore, a pair of slots are provided at the upper end of the baffle, and a U-shaped groove is formed at the upper end of the inclined plate. The U-shaped groove and the slots are in a one-to-one correspondence and interconnection relationship, and bolts are inserted in the U-shaped groove and the slots.

[0012] The advantages of the above technical solution are:

[0013] This invention uses an inclined baffle to block the movement of dust, thereby intercepting it at the front of the baffle. The baffle, rectangular opening, and vertical baffle further enhance the dust blocking effect, thereby reducing the amount of dust trapped inside the dust bag and extending the filtration time.

[0014] This utility model also facilitates internal cleaning operations. During operation, the top cover is opened, and the various baffles, dust bags, and filter membranes are cleaned. In order to facilitate the cleaning of filter membranes and dust bags, they are all detachable. Attached Figure Description

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.

[0016] Figure 1 A three-dimensional structure of one embodiment is shown. Figure 1 .

[0017] Figure 2 A three-dimensional structure of one embodiment is shown. Figure 2 .

[0018] Figure 3 The three-dimensional structure of the baffle and its related structures is shown. Figure 1 .

[0019] Figure 4 The three-dimensional structure of the baffle and its related structures is shown. Figure 2 .

[0020] Figure 5 An internal three-dimensional structural diagram of one embodiment is shown. Detailed Implementation

[0021] like Figures 1-5 As shown, a dustproof head for venting a storage tank includes a concave shell 1 welded to the middle section of the storage tank's vent pipe. The upper end of the concave shell 1 is bent inward to form a protruding plate 10, and an upper cover plate 11 is installed on the protruding plate 10 by screws.

[0022] Multiple baffles 2 are arranged side by side inside the concave shell 1 and on the lower side of the upper cover plate 11. The baffles 2 are inclined inside the concave shell 1, and the upper end of the baffles 2 is inclined towards the direction of airflow entry. Multiple windows are opened on the baffles 2. A concave cover 26 is welded to the back side of the baffles 2. The two sides of the concave cover 26 are right-angled triangular structures. The projection of the windows along the horizontal direction is located on the vertical wall of the concave cover 26. Notches are opened on the vertical wall of the concave cover 26. An outer clamping plate 29 and an inner clamping plate 30 are welded to the inner wall of the concave cover 26. The outer clamping plate 29 and the inner clamping plate 30 are arranged vertically. There is a gap between the outer clamping plate 29 and the inner clamping plate 30. An insert frame 31 is inserted into the gap between the outer clamping plate 29 and the inner clamping plate 30. A dustproof bag 32 is pasted on the insert frame 31.

[0023] The baffle 2 has two forward-facing bends with side slopes 21, and multiple partitions 22 are provided between the side slopes 21. The partitions 22 are located between two adjacent windows, and multiple rectangular openings 23 are provided on the partitions 22. Vertical baffles 24 are welded to the rectangular openings 23 extending vertically downward.

[0024] An upper retaining plate 12 is welded to the inner wall of the upper cover plate 11. The upper retaining plate 12 is inserted into the front side of the baffle 2 to limit the upper end of the baffle 2. A lower retaining plate 13 is welded to the lower side of the interior of the concave shell 1. A plurality of concave sleeves 14 are welded to the rear side of the lower retaining plate 13. A plug 20 is formed at the lower end of the baffle 2. The plug 20 is inserted into the concave sleeve 14.

[0025] The outer walls of the concave cover 26 are horizontally welded with transverse protrusions 27. The rear end of the transverse protrusions 27 is formed with a limiting groove 28. The upper end of the concave cover 26 is open. The upper end of the concave cover 26 is provided with a lower frame 33. The front end of the lower frame 33 is bent with an inclined fixing plate 35. The inclined fixing plate 35 abuts against the rear side of the baffle 2. The upper side of the lower frame 33 is provided with a filter membrane 38. The upper side of the filter membrane 38 is provided with an upper frame 39. The upper frame 39, the lower frame 33 and the filter membrane 38 are connected and fixed by multiple screws 34. The lower end of the screw 34 is inserted into the limiting groove 28. The upper end of the screw cap abuts against the lower wall of the transverse protrusion 27. The upper end of the baffle 2 is provided with a pair of slots 25. The upper end of the inclined fixing plate 35 is formed with a U-shaped groove 36. The U-shaped groove 36 and the slots 25 are in a one-to-one correspondence and interconnected relationship. Bolts 37 are inserted into the U-shaped groove 36 and the slots 25.

[0026] In this embodiment, the air inside the storage tank is transported out through a pipeline, and the airflow can be accelerated by an induced draft fan installed on it during the transport.

[0027] In this embodiment, dust is only generated during the feeding or discharging of ultrafine calcium powder. Therefore, the feeding or discharging of ultrafine calcium powder is used as an example for explanation. During the feeding process, the air in the storage tank is discharged outward by the induced draft fan. During the discharge process, the airflow and dust will first come into contact with each partition 22, thereby blocking some of the dust through the partition 22 and the vertical baffle 24, causing the dust to fall downward. The airflow will form a swirling flow on the lower baffle 13, thereby preventing the dust from being discharged outward again. Some dust will also enter the concave cover 26 through the window with the airflow, and then be discharged upward through the filter membrane 38 and backward through the dust bag 32. This solution increases the air passage area by setting two exhaust ports, dust bag 32 and filter membrane 38 to discharge air. Secondly, when there is a lot of dust in the dust bag 32, the air will also be discharged through the filter membrane 38, thus improving the service life.

[0028] During cleaning, the operator removes the top cover 11, then pulls out the baffles 2 one by one, removes the bolts 37, and then pulls out the lower frame 33 and other components for cleaning. Common cleaning methods include rinsing or shaking. After that, the insert frame 31 is pulled out, and the dust bag 32 is cleaned. After cleaning, all components are reassembled.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A dustproof head for venting a storage tank, characterized in that, It includes a concave shell (1) welded to the middle section of the exhaust pipe of the storage tank, and a convex plate (10) formed by bending the upper end of the concave shell (1) inward. A top cover plate (11) is installed on the convex plate (10) by screws. Multiple baffles (2) are arranged side by side inside the concave shell (1) and on the lower side of the upper cover plate (11). The baffles (2) are inclined inside the concave shell (1), and the upper end of the baffles (2) is inclined towards the direction of airflow entry. Multiple windows are opened on the baffles (2). A concave cover (26) is welded to the back side of the baffles (2). The two sides of the concave cover (26) are right-angled triangular structures. The projection of the windows along the horizontal direction is located on the concave cover (26). On the vertical wall, a notch is provided on the vertical wall of the concave cover (26). An outer clamping plate (29) and an inner clamping plate (30) are welded to the inner wall of the concave cover (26). The outer clamping plate (29) and the inner clamping plate (30) are arranged vertically. There is a gap between the outer clamping plate (29) and the inner clamping plate (30). An insert frame (31) is inserted into the gap between the outer clamping plate (29) and the inner clamping plate (30). A dustproof bag (32) is pasted on the insert frame (31).

2. The dustproof head for venting storage tanks according to claim 1, characterized in that, The baffle (2) has two forward-facing bends with side slopes (21), and multiple partitions (22) are provided between the side slopes (21). The partitions (22) are located between two adjacent windows.

3. The dustproof head for venting storage tanks according to claim 2, characterized in that, The partition (22) has multiple rectangular openings (23), and vertical baffles (24) are welded to the rectangular openings (23) extending vertically downwards.

4. The dustproof head for venting storage tanks according to claim 1, characterized in that, The inner wall of the upper cover plate (11) is welded with an upper retaining plate (12), which is inserted into the front side of the baffle (2) to limit the upper end of the baffle (2). The lower side of the concave shell (1) is welded with a lower retaining plate (13), and a plurality of concave sleeves (14) are welded to the rear side of the lower retaining plate (13). The lower end of the baffle (2) is formed with a plug (20), which is inserted into the concave sleeve (14).

5. The dustproof head for venting storage tanks according to claim 1, characterized in that, The outer walls of the concave cover (26) are horizontally welded with a horizontal convex edge (27). The rear end of the horizontal convex edge (27) is formed with a limiting groove (28). The upper end of the concave cover (26) is open. The upper end of the concave cover (26) is provided with a lower frame (33). The front end of the lower frame (33) is bent with a slanted fixing plate (35). The slanted fixing plate (35) abuts against the rear side of the baffle (2). The upper side of the lower frame (33) is provided with a filter membrane (38). The upper side of the filter membrane (38) is provided with an upper frame (39). The upper frame (39), the lower frame (33) and the filter membrane (38) are connected and fixed by multiple screws (34). The lower end of the screw (34) is inserted into the limiting groove (28). The upper end of the screw (34) abuts against the lower wall of the horizontal convex edge (27).

6. The dustproof head for venting storage tanks according to claim 5, characterized in that, The upper end of the baffle (2) is provided with a pair of slots (25), and the upper end of the inclined plate (35) is formed with a U-shaped groove (36). The U-shaped groove (36) and the slots (25) are in a one-to-one correspondence and interconnected relationship. Bolts (37) are inserted in the U-shaped groove (36) and the slots (25).

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