Fresh feeding chute deironing device

Abstract

The utility model relates to an iron removal device for a fresh feeding chute, which belongs to the technical field of alumina powder treatment devices and comprises a shell, the shell is communicated from top to bottom, flanges for connection are arranged on the upper side and the lower side of the shell, the shell is connected with a drawer type ferromagnetic filter screen through bolts, and the drawer type ferromagnetic filter screen can remove iron powder mixed in alumina powder. The shell is further provided with a pressure sensor used for preventing the ferromagnetic filter screen from being blocked, and when the pressure difference between the two sides of the drawer type ferromagnetic filter screen reaches a set value, a worker is reminded to detach the filter screen for cleaning; according to the iron removal device for the fresh feeding chute, iron powder mixed in aluminum oxide powder is removed through the drawer type strong magnetic filter screen arranged inside, the iron content of the aluminum oxide powder is reduced, the quality of aluminum oxide is ensured, the influence on process control of an electrolytic cell is reduced, and the grade of molten aluminum is improved.

Description

Technical Field

[0001] The utility model relates to a fresh feeding chute iron removal device, belonging to the technical field of alumina powder processing devices. Background Art

[0002] Dust collectors are core equipment for flue gas purification in the daily production of aluminum products, and their chutes serve as the primary channel for super-dense phase transport. During the production and transportation of alumina powder, the powder constantly rubs against equipment, pipelines, and chutes, resulting in the inclusion of iron powder in the raw alumina material. Once this iron-laden alumina powder enters the electrolytic cell, the electrolysis reaction can result in a high iron content in the raw aluminum, affecting the determination of electrolytic cell process parameters and the quality of the molten aluminum. Utility Model Content

[0003] In view of the above deficiencies in the existing technology, the technical problem to be solved by the present invention is: to provide a fresh feeding chute iron removal device, which is installed below the fresh chute distributor to remove iron powder mixed in the alumina powder to ensure the quality of alumina, reduce the impact on the electrolytic cell process control, and improve the grade of molten aluminum.

[0004] The fresh feeding chute iron removal device described in the utility model includes a shell, which is connected from top to bottom, and flanges for connection are provided on the upper and lower sides of the shell. The shell is connected to the drawer-type strong magnetic filter by bolts. The drawer-type strong magnetic filter can remove iron powder mixed in the alumina powder. A pressure sensor is also installed on the shell to prevent the strong magnetic filter from being blocked. When the pressure difference on both sides of the drawer-type strong magnetic filter reaches a set value, the staff is reminded to remove the filter for cleaning.

[0005] The technical solution of the utility model is to provide a fresh feeding chute iron removal device. When alumina powder containing iron powder passes through, the iron powder in the alumina powder is adsorbed by a drawer-type strong magnetic filter to prevent the iron powder from entering the subsequent electrolytic cell. When the device continues to work, when the pressure difference on both sides of the drawer-type strong magnetic filter reaches a set value, the staff is reminded to remove the filter for cleaning.

[0006] Preferably, the drawer-type ferromagnetic filter comprises a drawer and a ferromagnetic filter element, and the ferromagnetic filter element is connected to the drawer via bolts.

[0007] Furthermore, the ferromagnetic filter element is a cylindrical structure, and is provided with a dense filter screen made of a ferromagnetic material. The upper end of the ferromagnetic filter element is provided with a flange for connecting to a drawer.

[0008] Furthermore, the drawer is provided with a through hole adapted for the ferromagnetic filter element, and the ferromagnetic filter element is installed in the through hole; a cover plate is provided at the front end of the drawer, one side of the cover plate is in contact with the shell, and a sealing strip is attached to the edge of the contact surface between the cover plate and the shell; a handle is provided on the other side of the cover plate, and the handle is hinged to the cover plate.

[0009] Preferably, a drawer support plate is provided inside the shell for supporting and limiting the drawer; internal threaded columns are welded on both sides of the shell, and grooves are provided on both sides of the drawer. When the drawer cover presses the shell, the grooves are adapted to the positions of the internal threaded columns, and the drawer can be fixed by a bolt and nut assembly.

[0010] There are two pressure sensors, which are installed on the upper and lower sides of the shell respectively. They can detect the pressure at the shell inlet and outlet, and then feed it back to the control system to calculate the pressure difference.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The fresh feeding chute iron removal device described in the utility model removes iron powder mixed in the alumina powder through the drawer-type strong magnetic filter screen arranged inside, reduces the iron content of the alumina powder, ensures the quality of the alumina, reduces the impact on the electrolytic cell process control, and improves the grade of molten aluminum. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 is a three-dimensional diagram of the shell;

[0015] Figure 3 It is a three-dimensional image of a drawer;

[0016] Figure 4 This is a three-dimensional diagram of a strong magnetic filter element.

[0017] In the figure: 1. Fresh chute distributor; 2. Housing; 21. Internally threaded column; 22. Drawer support; 3. Drawer; 31. Cover; 32. Handle; 33. Sealing strip; 34. Groove; 35. Through hole; 4. Pressure sensor; 5. Bolt and nut assembly; 6. Strong magnetic filter element. DETAILED DESCRIPTION

[0018] like Figure 1-4 As shown, this embodiment is implemented through the following technical solutions: the utility model is installed below the fresh chute distributor 1, and includes a shell 2, the shell 2 is connected from top to bottom, and flanges for connection are provided on the upper and lower sides of the shell 2, and the shell 2 is connected to the drawer-type strong magnetic filter through bolts. The drawer-type strong magnetic filter can remove iron powder mixed in the alumina powder; a pressure sensor 4 is also installed on the shell 2 to prevent the strong magnetic filter from being blocked. When the pressure difference on both sides of the drawer-type strong magnetic filter reaches a set value, the staff is reminded to remove the filter for cleaning.

[0019] In this embodiment, the number of drawer-type ferromagnetic filters is two, and the drawer-type ferromagnetic filter includes a drawer 3 and a ferromagnetic filter element 6, which is connected to the drawer 3 by bolts; the ferromagnetic filter element 6 is a cylindrical structure, and the ferromagnetic filter element 6 is provided with a dense filter screen, which is made of ferromagnetic material, and the upper end of the ferromagnetic filter element 6 is provided with a flange for connecting to the drawer 3; the drawer 3 is provided with a through hole 35 adapted to the ferromagnetic filter element 6, and the ferromagnetic filter element 6 is installed in the through hole 35; the front end of the drawer 3 is provided with a cover plate 31, and the cover plate 31 is provided with a cover plate 31. One side of the housing 2 contacts the cover 31, and a sealing strip 33 is attached to the edge of the contact surface between the cover 31 and the housing 2. A handle 32 is provided on the other side of the cover 31, which is hinged to the cover 31. The housing 2 is internally provided with a drawer support 22, made of angle steel, which supports and limits the drawer. Internally, internally, threaded posts 21 are welded to both sides of the housing 2, and grooves 34 are provided on both sides of the drawer 3. When the drawer cover 31 is pressed against the housing, the grooves 34 align with the positions of the internally threaded posts 21, securing the drawer 3 via a bolt and nut assembly 5. Two pressure sensors 4 are installed on the upper and lower sides of the housing 2. They detect the pressure at the housing inlet and outlet, and then feed it back to the control system, which calculates the pressure difference. If the pressure difference reaches a set value, an alarm is sounded to remind workers to clean the filter.

[0020] Of course, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples. Equivalent changes and improvements made by ordinary technicians in this technical field within the essential scope of the present invention should all fall within the scope of the patent of the present invention.

Claims

1. A fresh feeding chute iron removal device, characterized in that: The invention comprises a shell (2), the shell (2) is connected from top to bottom, flanges for connection are provided on the upper and lower sides of the shell (2), the shell (2) is connected to the drawer-type strong magnetic filter by bolts, and a pressure sensor (4) for preventing the strong magnetic filter from being blocked is also installed on the shell (2).

2. The fresh feeding chute iron removal device according to claim 1, characterized in that: The drawer-type ferromagnetic filter comprises a drawer (3) and a ferromagnetic filter core (6), and the ferromagnetic filter core (6) is connected to the drawer (3) via bolts.

3. The fresh feeding chute iron removal device according to claim 2, characterized in that: The ferromagnetic filter core (6) is a cylindrical structure. The ferromagnetic filter core (6) is provided with a dense filter screen. The upper end of the ferromagnetic filter core (6) is provided with a flange for connecting with the drawer (3).

4. The fresh feeding chute iron removal device according to claim 2, characterized in that: The drawer (3) is provided with a through hole (35) adapted to the ferromagnetic filter element (6), and the ferromagnetic filter element (6) is installed in the through hole (35); a cover plate (31) is provided at the front end of the drawer (3), one side of the cover plate (31) contacts the housing (2), and a sealing strip (33) is attached to the edge of the contact surface between the cover plate (31) and the housing (2); a handle (32) is provided on the other side of the cover plate (31), and the handle (32) is hinged to the cover plate (31).

5. The fresh feeding chute iron removal device according to claim 2, characterized in that: The shell (2) is provided with a drawer support plate (22) for supporting and limiting the drawer; internal threaded columns (21) are welded on both sides of the shell (2); grooves (34) are provided on both sides of the drawer (3); when the cover plate (31) of the drawer is pressed against the shell (2), the position of the grooves (34) and the internal threaded columns (21) are adapted.

6. The fresh feeding chute iron removal device according to claim 1, characterized in that: There are two pressure sensors (4), which are respectively installed on the upper and lower sides of the housing (2).

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