Fly ash washing device

Abstract

The utility model discloses a fly ash washing device which comprises a barrel, a base and an upper cover, the upper end and the lower end of the barrel are open, the base covers the lower end of the barrel and is connected with the barrel in a sealed mode, a liquid drainage connector is arranged on the lower portion of the base and communicated with the interior of the base, a filter screen is arranged on the upper portion of the base, and the interior of the base is communicated with the interior of the barrel through the filter screen. The upper cover covers the upper end of the barrel and is fixedly connected with the barrel, and a feeding hopper and a liquid inlet connector are arranged on the upper portion of the cover and communicated with the interior of the barrel. By arranging the cylinder body and the base, the split type design of the washing cylinder is achieved, when the filter screen needs to be cleaned, only the cylinder body and the base need to be separated, the filter screen can be taken out for cleaning, operation is convenient, and safety is good.

Description

Technical Field

[0001] This utility model relates to the field of fly ash treatment technology, and more specifically, to a fly ash washing device. Background Technology

[0002] Fly ash produced by waste incineration typically contains pollutants and toxic components such as heavy metals that can be leached out by water. Currently, the main methods for fly ash treatment are thermal treatment and water washing separation. When using water washing separation, fly ash needs to be mixed with water in a water washing device and then pumped to a sedimentation tank for sedimentation. Since the particle size in fly ash varies, in order to prevent large particles from affecting the power pump, a filter screen is usually installed in the water washing device to filter the fly ash solution before output.

[0003] Currently, the washing drum of the washing device is a one-piece design with a cover on the top. When the filter needs to be cleaned, the cover needs to be opened. Moreover, because the washing drum is quite deep, staff need to climb into the washing drum to clean or replace the filter. This method is not only inconvenient to operate, but also poses a safety hazard. Therefore, it is urgent to improve this method. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a fly ash washing device. By setting up a cylinder and a base, the washing cylinder is designed as a separate unit. When the filter screen needs to be cleaned, the cylinder and the base can be separated to remove the filter screen for cleaning. The operation is convenient and safe.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fly ash washing device, comprising a cylinder, a base, and a top cover. The cylinder has openings at both the top and bottom. The base covers the lower end of the cylinder and is sealed to the cylinder. The lower part of the base is provided with a drain port, which communicates with the interior of the base. The upper part of the base is provided with a filter screen, which communicates with the interior of the cylinder. The top cover covers the upper end of the cylinder and is fixedly connected to the cylinder. The upper part of the cover is provided with a feed hopper and a liquid inlet, which communicate with the interior of the cylinder.

[0006] Furthermore, the side of the cylinder is provided with a first support plate symmetrical along the cylinder axis, and the side of the base is provided with a second support plate corresponding to the first support plate. A lifting device is fixedly installed on the upper part of the second support plate, and the telescopic end of the lifting device is fixedly connected to the lower part of the first support plate. The lifting device can drive the cylinder to move so that the cylinder abuts against or detaches from the base.

[0007] Furthermore, the lower part of the cylinder is provided with a first annular plate, and the upper part of the base is provided with a second annular plate. The lower part of the first annular plate can abut against the upper part of the second annular plate and be fixedly connected by bolts.

[0008] Furthermore, the upper part of the filter screen is provided with a third annular rib, the third annular rib is closely attached to the inner wall of the base, and the upper part of the third annular rib is provided with an annular platform, the upper part of the annular platform abutting the lower part of the first annular plate and the lower part abutting the upper part of the second annular plate.

[0009] Furthermore, a sealing ring is sleeved on the outer side of the annular platform, the lower part of the first annular plate abuts against and squeezes the upper part of the sealing ring, and the upper part of the second annular plate abuts against and squeezes the upper part of the sealing ring.

[0010] Furthermore, a motor is fixed to the upper part of the cover, and a stirring paddle is provided inside the cylinder. The stirring paddle is connected to the drive shaft of the motor, and the motor can drive the stirring paddle to rotate. Multiple baffles are provided on the inner wall of the cylinder, and the baffles are inclined along the inner wall of the cylinder.

[0011] Furthermore, the upper cover includes a first annular rib, which is inserted into the cylinder and fixedly connected to the inner wall of the cylinder. A second annular rib is provided on the inner side of the first annular rib, and the first annular rib and the second annular rib are connected by a connecting rib.

[0012] Furthermore, the connecting rib is an upwardly protruding annular arc-shaped rib, and the connection end of the connecting rib and the first annular rib is higher than the connection end of the connecting rib and the second annular rib.

[0013] Furthermore, the lower part of the feed hopper is provided with a feed pipe, the lower end of which is inserted into the cylinder body, and the lower end of the feed pipe is located in the area enclosed by the second annular rib.

[0014] In summary, this utility model has the following beneficial effects:

[0015] By designing a separate cylinder and base, when cleaning or replacing the filter, simply separate the cylinder and base to remove the filter directly from the top of the base for disassembly, cleaning, or replacement. This not only makes the operation convenient but also greatly improves safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0017] Figure 2 This is a cross-sectional view of this embodiment;

[0018] Figure 3 for Figure 2 Enlarged view at point A;

[0019] Figure 4 for Figure 2 A partial schematic diagram.

[0020] Reference numerals: 1. Cylinder; 11. Baffle rib; 12. First annular plate; 13. First support plate; 2. Base; 21. Drainage port; 22. Second annular plate; 23. Second support plate; 24. Support foot; 3. Top cover; 31. First annular rib; 32. Second annular rib; 33. Connecting rib; 34. Liquid inlet port; 4. Motor; 41. Stirring paddle; 5. Filter screen; 51. Third annular rib; 52. Annular platform; 6. Lifter; 7. Feed hopper; 71. Feed pipe; 8. Valve; 9. Sealing ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 4 As shown in the figure, this embodiment discloses a fly ash washing device, including a cylinder 1, a base 2, and a top cover 3. The cylinder 1 has openings at both the top and bottom. The base 2 covers the lower end of the cylinder 1 and is sealed to the cylinder 1. Specifically, the lower part of the cylinder 1 is provided with a first annular plate 12, and the upper part of the base 2 is provided with a second annular plate 22. The lower part of the first annular plate 12 can abut against the upper part of the second annular plate 22 and is fixedly connected by bolts. When the base 2 is connected to the cylinder 1, the lower part of the first annular plate 12 abuts against the upper part of the second annular plate 22 and is fixed by bolts, which has good fixing reliability. When it is necessary to separate the base 2 and the cylinder 1, it is only necessary to unscrew the corresponding bolts to separate the base 2 and the cylinder 1, which is convenient to operate.

[0023] Specifically, the side of the cylinder 1 is provided with a first support plate 13 symmetrically arranged along the axis of the cylinder 1, and the side of the base 2 is provided with a second support plate 23 corresponding to the first support plate 13. A lifting device 6 is fixedly installed on the upper part of the second support plate 23. The telescopic end of the lifting device 6 is fixedly connected to the lower part of the first support plate 13. The lifting device 6 can drive the cylinder 1 to move so that the cylinder 1 abuts against or detaches from the base 2. The first support plate 13 is welded to the side of the cylinder 1 and reinforced by reinforcing ribs. The second support plate 23 is welded to the side of the base 2 and fixed to the support foot welded to the lower part of the base 2 by reinforcing ribs. The lifting device 6 is preferably a hydraulic cylinder. When it is necessary to separate the cylinder 1 and the base 2, firstly, the bolts connecting the base 2 and the cylinder 1 are removed, and then the cylinder 1 is lifted upward by the lifting device 6 to achieve separation, thereby facilitating the cleaning of the inner wall of the cylinder 1 and the inside of the base 2.

[0024] To improve safety, when the cylinder 1 is raised to the correct position, the staff must place the support column (not shown in the figure) between the first support plate 13 and the second support plate 23 in order to handle the inner wall of the cylinder 1 and the interior of the base 2.

[0025] The base 2 is equipped with a filter screen 5 on its upper part. The interior of the base 2 is connected to the interior of the cylinder 1 through the filter screen 5. Specifically, the filter screen 5 is equipped with a third annular rib 51 on its upper part. The third annular rib 51 is in close contact with the inner wall of the base 2. The third annular rib 51 is equipped with an annular platform 52 on its upper part. The annular platform 52 abuts against the lower part of the first annular plate 12 and the lower part abuts against the upper part of the second annular plate 22. The surface of the filter screen 5 is provided with mesh holes, which can block large particles in fly ash from entering the base 2. By setting the cylinder 1 and the base 2 as separate units, when it is necessary to clean or replace the filter screen 5, it is only necessary to separate the cylinder 1 and the base 2, and the filter screen 5 can be directly removed from the upper part of the base 2 for disassembly, cleaning or replacement of the new filter screen 5. This is not only convenient to operate, but also greatly improves safety.

[0026] The annular platform 52 is fitted with a sealing ring 9 on its outer side. The lower part of the first annular plate 12 abuts against and presses the upper part of the sealing ring 9, and the upper part of the second annular plate 22 abuts against and presses the upper part of the sealing ring 9. Specifically, the sealing ring 9 is made of rubber. Through the cooperation of the sealing ring 9, the first annular plate 12 and the second annular plate 22, the seal between the cylinder 1 and the base 2 can be achieved.

[0027] The upper cover 3 covers the upper end of the cylinder 1 and is fixedly connected to the cylinder 1. The upper part of the cover is provided with a feed hopper 7 and a liquid inlet 34. The feed hopper 7 and the liquid inlet 34 are respectively connected to the inside of the cylinder 1. The lower part of the base 2 is provided with a drain port 21. The drain port 21 is connected to the inside of the base 2. A valve 8 is installed at the lower end of the drain port 21. The valve 8 can be opened and closed, so that the drain port 21 is blocked or connected to the outside. The valve 8 is preferably a solenoid valve. In the prior art, when washing fly ash with water, the valve 8 is in the closed state.

[0028] Fly ash enters the cylinder 1 from the feed hopper 7, and washing liquid enters the cylinder 1 from the liquid inlet 34. The fly ash and washing liquid are mixed inside the cylinder 1. After being filtered through the filter screen 5, the mixed fly ash liquid is finally discharged into the next process from the liquid outlet 21.

[0029] A motor 4 is fixed to the upper part of the upper cover 3. An agitator 41 is provided inside the cylinder 1. The agitator 41 is connected to the drive shaft of the motor 4. The motor 4 can drive the agitator 41 to rotate. The inner wall of the cylinder 1 is provided with multiple baffles 11. There are four baffles 11, which are evenly distributed along the axis of the cylinder 1. The baffles 11 are inclined along the inner wall of the cylinder 1. By driving the agitator 41 to rotate through the motor 4, the mixing effect of fly ash and washing liquid can be improved. When the agitator 41 rotates, it will generate centrifugal force on the fly ash liquid. The baffles 11 can block the fly ash liquid, thereby improving the mixing effect of fly ash and washing liquid.

[0030] The upper cover 3 includes a first annular rib 31, which is inserted into the cylinder 1 and fixedly connected to the inner wall of the cylinder 1. A second annular rib 32 is provided on the inner side of the first annular rib 31. The first annular rib 31 and the second annular rib 32 are connected by a connecting rib 33. The connecting rib 33 is an upwardly protruding annular arc rib. The connection end of the connecting rib 33 and the first annular rib 31 is higher than the connection end of the connecting rib 33 and the second annular rib 32. When the fly ash liquid is stationary, the liquid level is lower than the lower surface of the connecting rib 33. When the stirring paddle 41 stirs the fly ash liquid, the fly ash liquid will rise along the inner wall of the cylinder 1. However, due to the obstruction of the connecting rib 33, a small part of the fly ash liquid will fall back down along the arc trajectory of the lower surface of the connecting rib 33 and come into contact with most of the fly ash liquid, which is beneficial to improving the mixing effect.

[0031] The feed hopper 7 is provided with a feed pipe 71 at the lower part. The lower end of the feed pipe 71 is inserted into the cylinder 1. The lower end of the feed pipe 71 is located in the area enclosed by the second annular rib 32. The feed pipe 71 is long and narrow. This design can effectively prevent liquid from splashing out from the feed hopper 7 when stirring fly ash and washing liquid.

[0032] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A fly ash washing device, characterized in that, The device includes a cylinder (1), a base (2), and a top cover (3). The cylinder (1) has openings at both the top and bottom. The base (2) covers the lower end of the cylinder (1) and is sealed to the cylinder (1). The lower part of the base (2) is provided with a drain port (21), which is connected to the interior of the base (2). The upper part of the base (2) is provided with a filter screen (5), which is connected to the interior of the cylinder (1) through the filter screen (5). The top cover (3) covers the upper end of the cylinder (1) and is fixedly connected to the cylinder (1). The upper part of the top cover is provided with a feed hopper (7) and a liquid inlet (34), which are connected to the interior of the cylinder (1) respectively.

2. The fly ash washing device according to claim 1, characterized in that, The side of the cylinder (1) is provided with a first support plate (13) symmetrical along the axis of the cylinder (1), and the side of the base (2) is provided with a second support plate (23) corresponding to the first support plate (13). A lifting device (6) is fixedly installed on the upper part of the second support plate (23). The telescopic end of the lifting device (6) is fixedly connected to the lower part of the first support plate (13). The lifting device (6) can drive the cylinder (1) to move so that the cylinder (1) abuts against or detaches from the base (2).

3. The fly ash washing device according to claim 2, characterized in that, The lower part of the cylinder (1) is provided with a first annular plate (12), and the upper part of the base (2) is provided with a second annular plate (22). The lower part of the first annular plate (12) can abut against the upper part of the second annular plate (22) and be fixedly connected by bolts.

4. The fly ash washing device according to claim 3, characterized in that, The filter screen (5) is provided with a third annular rib (51) on the upper part. The third annular rib (51) is closely attached to the inner wall of the base (2). The third annular rib (51) is provided with an annular platform (52) on the upper part. The upper part of the annular platform (52) abuts against the lower part of the first annular plate (12) and the lower part abuts against the upper part of the second annular plate (22).

5. The fly ash washing device according to claim 4, characterized in that, A sealing ring (9) is fitted on the outer side of the annular platform (52). The lower part of the first annular plate (12) abuts against and squeezes the upper part of the sealing ring (9), and the upper part of the second annular plate (22) abuts against and squeezes the upper part of the sealing ring (9).

6. The fly ash washing device according to claim 1, characterized in that, The upper part of the cover (3) is fixed with a motor (4), and the inside of the cylinder (1) is provided with a stirring paddle (41). The stirring paddle (41) is connected to the drive shaft of the motor (4). The motor (4) can drive the stirring paddle (41) to rotate. The inner wall of the cylinder (1) is provided with multiple baffles (11). The baffles (11) are inclined along the inner wall of the cylinder (1).

7. The fly ash washing device according to claim 6, characterized in that, The top cover (3) includes a first annular rib (31), which is inserted into the cylinder (1) and fixedly connected to the inner wall of the cylinder (1). A second annular rib (32) is provided on the inner side of the first annular rib (31), and the first annular rib (31) and the second annular rib (32) are connected by a connecting rib (33).

8. The fly ash washing device according to claim 7, characterized in that, The connecting rib (33) is an upwardly convex annular arc-shaped rib, and the connection end of the connecting rib (33) and the first annular rib (31) is higher than the connection end of the connecting rib (33) and the second annular rib (32).

9. A fly ash washing device according to claim 7, characterized in that, The feed hopper (7) is provided with a feed pipe (71) at the lower part. The lower end of the feed pipe (71) is inserted into the cylinder (1). The lower end of the feed pipe (71) is located in the area enclosed by the second annular rib (32).

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