Phosphorus slag stock bin filtering device

Abstract

The utility model discloses a phosphorus slag stock bin filtering device which comprises a straight section filter screen fixed in a stock bin body, a central filter screen fixed at the top in the stock bin body, a rapping support arranged in the central filter screen and a rapping device installed on the rapping support, and a gap is formed between the straight section filter screen and the inner wall of the stock bin body. A bottom drain pipe is arranged at the bottom of the bin body, the bottom of the center filter screen is connected with the inner wall of the bin body through a supporting platform and connected with a center drain pipe, and a slag discharge valve is installed at the bottom end of the bin body. The effects of improving the filtering efficiency of the filtering device and preventing the filter screen from being blocked are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a phosphorus slag silo filtering device. Background Art

[0002] Existing phosphorus slag silo filtration systems use a filter screen located within the cone of the slag bin, with no central filter screen vibrating. This results in the following drawbacks: 1. The slag bin filter screen is located within the cone. When filtering the slag-water mixture, the upper slag water must pass through the slag layer before passing through the filter screen, resulting in low filtration efficiency. 2. The central filter screen lacks a vibrating device, making it prone to clogging during filtration and reducing filtration effectiveness. When abnormal slag discharge occurs in a yellow phosphorus electric furnace, or when the instantaneous slag discharge is large, the slag discharge exceeds the slag bin's handling capacity, causing the slag bin to fill up and slag water to overflow, posing safety and environmental risks. Summary of the Invention

[0003] The technical problem to be solved by the utility model is that the filter screen structure has low filtering efficiency and is prone to clogging.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a phosphorus slag silo filtering device, including a straight filter screen fixed in the silo body, a central filter screen fixed at the top of the silo body, a vibrating bracket arranged in the central filter screen and a vibrator installed on the vibrating bracket, a gap is provided between the straight filter screen and the inner wall of the silo body, a bottom drain pipe is provided at the bottom of the silo body, the bottom of the central filter screen is connected to the inner wall of the silo body through a support platform, the bottom of the central filter screen is connected to the central drain pipe, and a slag discharge valve is installed at the bottom of the silo body.

[0005] Preferably, the central filter is cylindrical, the supporting platform is cross-shaped, a mounting platform for the central filter is provided at the center of the supporting platform, a mounting frame is provided at the top center of the silo body, the mounting frame is fixedly connected to the inner wall of the silo body through a cross bar, the vibrating bracket is hoisted on the mounting frame, and the vibrating bracket is coaxially arranged with the central filter.

[0006] Preferably, an annular rapping piece is coaxially mounted on the side wall of the rapping bracket, and the rapping pieces are equidistantly distributed along the axial direction of the rapping bracket.

[0007] Preferably, the bottom of the mounting frame is fixedly connected to the top of the central filter screen via a vertical rod.

[0008] Preferably, a bucket-shaped liquid inlet is provided at the top end of the central drain pipe, the liquid inlet is coaxially arranged with the central filter screen, and the edge of the liquid inlet is fixedly connected to the inner wall of the central filter screen.

[0009] 1. The utility model provides a phosphorus slag silo filtering device, which quickly filters the phosphorus slag entering the silo body through the straight filter screen inside the phosphorus slag silo, and discharges the filtered slag water above through the bottom drain pipe, without the need for filtering through the filter layer, thereby improving the filtration efficiency. The central filter screen located at the top of the silo body can filter the phosphorus slag in the middle of the top, and discharge the filtered water through the central drain pipe. The double filtration form of edge and center can quickly complete the filtration of the phosphorus slag.

[0010] 2. Install a vibrating bracket on the inner side of the central filter, and install a vibrator on the vibrating bracket. The vibrator drives the vibrating bracket to shake and hit the central filter to prevent the filter from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0012] Figure 1 Schematic diagram of the internal structure of an embodiment of the present utility model.

[0013] In the figure: 1. Silo body; 2. Straight filter screen; 3. Center filter screen; 4. Vibrating bracket; 5. Vibrator; 6. Center drain pipe; 7. Support platform; 8. Bottom drain pipe; 9. Slag discharge valve. DETAILED DESCRIPTION

[0014] like Figure 1 As shown, the utility model provides a phosphorus slag silo filtering device, comprising a straight filter screen 2 fixed in a silo body 1, a central filter screen 3 fixed at the top of the silo body 1, a rapping bracket 4 arranged in the central filter screen 3 and a rapper 5 installed on the rapping bracket 4, a gap is provided between the straight filter screen 2 and the inner wall of the silo body 1, a bottom drain pipe 8 is provided at the bottom of the silo body 1, the bottom of the central filter screen 3 is connected to the inner wall of the silo body 1 through a supporting platform 7, the bottom of the central filter screen 3 is connected to the central drain pipe 6, and a slag discharge valve 9 is installed at the bottom end of the silo body 1.

[0015] The silo body 1 is top-loaded. After the phosphorus slag enters the silo body 1, the slag near the inner wall is filtered by the straight filter 2. The filtered slag water flows down through the gap between the straight filter 2 and the silo body 1, and when it reaches the bottom of the silo body 1, it is discharged through the bottom drain pipe 8. After the filtered slag water is completely drained, the slag is discharged by opening the slag discharge valve 9. The phosphorus slag located inside the silo body 1 is close to the central filter 3. The central filter 3 filters this portion of the phosphorus slag, and the resulting slag water enters the inner side of the central filter 3. Finally, the slag water is discharged through the central drain pipe 6 at the bottom of the central filter 3. The bottom of the central drain pipe 6 is connected to the bottom drain pipe 8, and the slag water is discharged into the slag water pipeline.

[0016] like Figure 1The central filter 3 is cylindrical, the support platform 7 is cross-shaped, a mounting platform for the central filter 3 is provided at the center of the support platform 7, a mounting frame is provided at the top center of the silo body 1, the mounting frame is fixedly connected to the inner wall of the silo body 1 through a cross bar, and the rapping bracket 4 is hoisted on the mounting frame, and the rapping bracket 4 is coaxially arranged with the central filter 3.

[0017] The support platform 7 provides stable support for the central filter screen 3, ensuring that the impact on the central filter screen 3 when the phosphorus slag enters the silo body 1 will not cause the central filter screen 3 to deviate, thereby ensuring a stable connection between the central filter screen 3 and the central drainage pipe 6, and avoiding the phosphorus slag entering the central drainage pipe 6 and causing blockage of the central drainage pipe 6; the vibrating bracket 4 cleans the blockage in the central filter screen 3 by impacting the central filter screen 3.

[0018] As a preferred embodiment of the present invention, an annular rapping sheet is coaxially mounted on the side wall of the rapping bracket 4, and the rapping sheet is equidistantly distributed along the axial direction of the rapping bracket 4. The rapper 5 is shaken to drive the annular rapping sheet on the rapping bracket 4 to hit the central filter 3, thereby clearing the blockage of the central filter 3; and the annular rapping sheet on the rapping bracket 4 can also provide auxiliary support for the central filter 3, ensuring the structural stability of the central filter 3.

[0019] As a preferred embodiment of the present invention, in order to ensure the stability of the installation of the central filter 3, the bottom of the mounting frame is fixedly connected to the top of the central filter 3 via a vertical rod.

[0020] like Figure 1 As shown. The top of the central drain pipe 6 is provided with a bucket-shaped liquid inlet, which is coaxially arranged with the central filter screen 3, and the edge of the liquid inlet is fixedly connected to the inner side wall of the central filter screen 3. The top end of the central drain pipe 6 is arranged at the inner bottom of the central filter screen 3, which can ensure the tightness of the connection between the central filter screen 3 and the central drain pipe 6.

Claims

1. A phosphorus slag silo filtering device, characterized by: The invention comprises a straight filter screen (2) fixed in a silo body (1), a central filter screen (3) fixed in the top of the silo body (1), a vibration bracket (4) arranged in the central filter screen (3), and a vibration device (5) installed on the vibration bracket (4); a gap is provided between the straight filter screen (2) and the inner wall of the silo body (1); a bottom drainage pipe (8) is provided at the bottom of the silo body (1); the bottom of the central filter screen (3) is connected to the inner wall of the silo body (1) through a support platform (7); the bottom of the central filter screen (3) is connected to the central drainage pipe (6); and a slag discharge valve (9) is installed at the bottom end of the silo body (1).

2. A phosphorus slag silo filtering device as claimed in claim 1, characterized in that: The central filter (3) is cylindrical, the support platform (7) is cross-shaped, a mounting platform for the central filter (3) is provided at the center of the support platform (7), a mounting frame is provided at the top center of the silo body (1), the mounting frame is fixedly connected to the inner wall of the silo body (1) through a cross bar, the rapping bracket (4) is hoisted on the mounting frame, and the rapping bracket (4) is coaxially arranged with the central filter (3).

3. A phosphorus slag silo filtering device as claimed in claim 2, characterized in that: Annular rapping pieces are coaxially mounted on the side wall of the rapping bracket (4), and the rapping pieces are equidistantly distributed along the axial direction of the rapping bracket (4).

4. A phosphorus slag silo filtering device as claimed in claim 2, characterized in that: The bottom of the mounting frame is fixedly connected to the top of the central filter (3) via a vertical rod.

5. A phosphorus slag silo filtering device as claimed in claim 2, characterized in that: A bucket-shaped liquid inlet is provided at the top end of the central liquid discharge pipe (6), the liquid inlet is coaxially arranged with the central filter screen (3), and the edge of the liquid inlet is fixedly connected to the inner wall of the central filter screen (3).

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