Fluorine-loaded alumina silo filtering device

Abstract

The utility model relates to a fluorine-loaded aluminum oxide silo filtering device, which belongs to the technical field of stock bin filtering devices and comprises a silo, a liftable filtering plate is arranged in the silo, a plurality of meshes are arranged on the filtering plate and used for filtering slag, one side of the silo is connected with a high-pressure fan through a pipeline, and the other side of the silo is connected with a slag collecting box through a pipeline. The inner wall of the silo is further provided with a proximity switch used for controlling starting and stopping of the high-pressure fan and on-off of the electric valve. According to the fluorine-loaded aluminum oxide silo filtering device disclosed by the utility model, slag taken out by the dust remover can be intercepted through the filtering plate and is prevented from entering subsequent equipment to influence production, and the slag intercepted by the filtering plate is fed into the slag collecting box for treatment through the high-pressure fan, so that the slag cannot enter the silo, normal feeding of an electrolytic bath is ensured, and the production efficiency is improved. Normal production is guaranteed; the filter plate does not need to be cleaned manually, the structure is simple, and use is convenient.

Description

Technical Field

[0001] The utility model relates to a filtering device for fluorine - carrying alumina silos, belonging to the technical field of silo filtering devices. Background Art

[0002] During the electrolytic aluminum process, a dust collector is required to filter fluorine - carrying alumina dust, and then it is transported to the fluorine - carrying alumina silo for reuse. Due to the long - term operation of the dust collector, slag is likely to form on its inner wall. The slag will enter the fluorine - carrying alumina silo through the dilute - phase conveying system. When feeding the electrolytic cell, the slag will enter the chute, resulting in the situation that the chute cannot feed due to excessive slag accumulation, causing difficulties in feeding and lack of materials in the electrolytic cell, seriously affecting normal production. Content of the Utility Model

[0003] Based on the above deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a filtering device for fluorine - carrying alumina silos, which can filter the fluorine - carrying alumina powder transported to the fluorine - carrying alumina silo to prevent it from entering subsequent equipment and affecting production.

[0004] The filtering device for fluorine - carrying alumina silos of the utility model includes a silo. Inside the silo, there is a liftable filter plate. The filter plate is provided with a number of mesh holes for filtering slag. One side of the silo is connected to a high - pressure blower through a pipeline, and the other side of the silo is connected to a slag collection box through a pipeline. A proximity switch for controlling the start - stop of the high - pressure blower and the on - off of an electric valve is also installed on the inner wall of the silo.

[0005] The technical solution of the utility model is to provide a filtering device for fluorine - carrying alumina silos, which intercepts the slag brought out by the dust collector through the filter plate, and sends the slag intercepted by the filter plate into the slag collection box for treatment through the high - pressure blower.

[0006] Preferably, the top of the silo is provided with a feed inlet for connecting to the dilute - phase conveying system. Below the top plate of the silo, a guiding rod is suspended, and a guiding sleeve is movably arranged on the guiding rod; the guiding sleeve is installed on the filter plate, and the filter plate moves on the guiding rod through the guiding sleeve.

[0007] Further, a retaining piece is installed at the bottom of the guiding rod to prevent the guiding sleeve from slipping off the guiding rod; a spring is also sleeved on the guiding rod, and the spring is located between the retaining piece and the guiding sleeve.

[0008] Preferably, the proximity switch is fixed to the inner wall of the silo through a mounting plate, and the upper surface of the proximity switch is flush with the retaining piece.

[0009] Preferably, electric valves are provided on the connecting pipelines between the silo and the high - pressure blower, and between the silo and the slag collection box, and the electric valves are interlocked with the proximity switch.

[0010] Preferably, an air outlet is provided below the slag collection box, and a filter is installed on the air outlet.

[0011] The beneficial effects of the present utility model compared with the prior art are as follows:

[0012] The fluorine-bearing alumina silo filtering device of the present utility model can intercept the slag carried out by the dust collector through the filter plate, prevent it from entering the subsequent equipment and affecting production, and send the slag intercepted by the filter plate into the slag collection box for treatment through the high-pressure blower, so that the slag cannot enter the silo, thereby ensuring normal feeding of the electrolytic cell and guaranteeing normal production; at the same time, there is no need for manual cleaning of the filter plate, the structure is simple, and it is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is the front view of the silo;

[0015] Figure 3 is the left view of the silo;

[0016] Figure 4 Figure 2 is the A-A cross-sectional view of;

[0017] Figure 5 Figure 3 is the B-B cross-sectional view of.

[0018] In the figure: 1, silo; 11, feed inlet; 12, filter plate; 13, baffle; 14, proximity switch; 15, guide rod; 16, guide sleeve; 17, spring; 2, electric valve; 3, high-pressure blower; 4, slag collection box; 41, air outlet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be further described below in conjunction with specific embodiments.

[0020] However, the description of the present utility model is only an embodiment of the structural and functional description, and the scope of the rights of the present utility model is not limited by the embodiments described in the text.

[0021] For example, multiple embodiments can have various changes and various forms, and it should be understood that the scope of the rights of the present utility model includes equivalents that can implement the technical idea.

[0022] Such as Figures 1 to 5As shown in the figure, this embodiment is implemented through the following technical solutions: It includes a silo 1, inside which there is a liftable filter plate 12. The filter plate 12 is provided with a number of mesh holes for filtering slag. One side of the silo 1 is connected to a high-pressure blower 3 through a pipeline, and the other side of the silo 1 is connected to a slag collection box 4 through a pipeline. A proximity switch 14 for controlling the start and stop of the high-pressure blower 3 and the opening and closing of the electric valve 2 is also installed on the inner wall of the silo 1.

[0023] In this embodiment, a feed inlet 11 is provided at the top of the silo 1. The feed inlet 11 is used to connect to a dilute-phase conveying system. A guide rod 15 is suspended below the top plate of the silo 1, and a guide sleeve 16 is movably arranged on the guide rod 15; the guide sleeve 16 is installed on the filter plate 12, and the filter plate 12 moves on the guide rod 15 through the guide sleeve 16.

[0024] A stop piece 13 is installed at the bottom of the guide rod 15 to prevent the guide sleeve 16 from slipping off the guide rod 15; a spring 17 is also sleeved on the guide rod 15, and the spring 17 is located between the stop piece 13 and the guide sleeve 16; the proximity switch 14 is fixed to the inner wall of the silo 1 through a mounting plate, and the upper surface of the proximity switch 14 is flush with the stop piece 13; Electric valves 2 are provided on the connecting pipelines between the silo 1 and the high-pressure blower 3, and between the silo 1 and the slag collection box 4. The electric valves 2 are interlocked with the proximity switch 14; A ventilation outlet 41 is provided below the slag collection box 4, and a filter is installed on the ventilation outlet 41 for filtering the slag and fluorinated alumina dust entering the slag collection box 4.

[0025] The working process of this utility model is as follows:

[0026] The fluorinated alumina dust doped with slag enters the silo 1 from the feed inlet 11. The fluorinated alumina dust passes through the mesh holes on the filter plate 12 and falls to the bottom of the silo 1, and the slag is intercepted by the filter plate 12; As the weight of the slag intercepted by the filter plate 12 increases, the filter plate 12 gradually compresses the spring 17; When the distance between the filter plate 12 and the proximity switch 14 reaches the set value, the proximity switch 14 opens the electric valves 2 on both sides of the silo through the control system, and at the same time, the high-pressure blower 3 is started. The slag on the filter plate is blown into the slag collection box 4 by high-pressure air. The high-pressure air is discharged after being filtered by the filter of the ventilation outlet 41, while the slag and fluorinated alumina dust stay in the slag collection box 4.

[0027] As the weight of the slag on the filter plate 12 decreases, the spring 17 pushes the filter plate 12 to reset, the electric valve 2 closes, and the high-pressure blower 3 stops.

[0028] Certainly, the above content is only a preferred embodiment of the present utility model and cannot be considered as limiting the scope of the embodiments of the present utility model. The present utility model is not limited to the above examples either. Equivalent changes and improvements made by those of ordinary skill in the art within the essence of the present utility model shall fall within the scope covered by the patent of the present utility model.

Claims

1. A fluorine-bearing alumina silo filtration device, characterized in that, It includes a silo (1). Inside the silo (1), there is a liftable filter plate (12) provided with a number of mesh holes. One side of the silo (1) is connected to a high-pressure blower (3) through a pipeline, and the other side of the silo (1) is connected to a slag collection box (4) through a pipeline. A proximity switch (14) is installed on the inner wall of the silo (1).

2. The fluorine-bearing alumina silo filtration device according to claim 1, characterized in that, The top of the silo (1) is provided with a feed inlet (11). Below the top plate of the silo (1), a guide rod (15) is suspended. A guide sleeve (16) is movably arranged on the guide rod (15); the guide sleeve (16) is installed on the filter plate (12), and the filter plate (12) moves on the guide rod (15) through the guide sleeve (16).

3. The fluorine-bearing alumina silo filtration device according to claim 2, characterized in that, A retaining piece (13) for preventing the guide sleeve from slipping is installed at the bottom of the guide rod (15); a spring (17) is also sleeved on the guide rod (15), and the spring (17) is located between the retaining piece (13) and the guide sleeve (16).

4. The fluorine-bearing alumina silo filtration device according to claim 3, wherein, The proximity switch (14) is fixed to the inner wall of the silo (1) through a mounting plate, and the upper surface of the proximity switch (14) is flush with the retaining piece (13).

5. The fluorine-bearing alumina silo filtration device according to claim 1, wherein, Electric valves (2) are provided on the connecting pipelines between the silo (1) and the high-pressure blower (3), and between the silo (1) and the slag collection box (4). The electric valves (2) are interlocked with the proximity switch (14).

6. The fluorine-bearing alumina silo filtration device according to claim 1, characterized in that, A ventilation outlet (41) is provided below the slag collection box (4), and a filter is installed on the ventilation outlet (41).

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