Air supply cooling mechanism for ferrosilicon furnace

Abstract

The utility model relates to a kind of air supply cooling mechanism for ferrosilicon furnace, it includes fan, bottom air pipe, side wall air pipe, the bottom plate is provided below the furnace bottom of ferrosilicon furnace, the bottom plate is fixed with the furnace bottom of ferrosilicon furnace by annular plate, ventilation chamber is formed between furnace bottom and bottom plate, one end of bottom air pipe is communicated with ventilation chamber, the other end of the air pipe of furnace bottom is sealedly connected with the output end of fan;Multiple side wall air pipes are spaced apart along the circumference of furnace shell, cooling chamber is formed between side wall air pipe and furnace shell, ventilation hole is opened on furnace bottom, ventilation hole is one-to-one corresponding with side wall air pipe, ventilation hole is simultaneously communicated with ventilation chamber and cooling chamber;Cooling branch pipe, which is communicated with side wall air pipe, is arranged on the side wall of top end of side wall air pipe, the central axis of cooling branch pipe is perpendicular to the central axis of side wall air pipe, cooling wind hole is opened on the side of cooling branch pipe close to furnace shell.The present application has the effect of improving the cooling effect of furnace shell and the service life of furnace shell.

Description

Technical Field

[0001] This utility model relates to the field of cooling ferrosilicon furnaces, and in particular to an air supply cooling mechanism for ferrosilicon furnaces. Background Technology

[0002] Ferrosilicon furnaces generate heat during use. The furnace shell is constructed by welding. If cooling is not implemented, the weld seams of the furnace shell will crack at high temperatures.

[0003] Traditionally, ferrosilicon furnaces have several water-cooling pipes installed around the circumference of the furnace shell. These water-cooling pipes are prone to leakage, which can damage the furnace shell and affect its service life. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides an air supply and cooling mechanism for ferrosilicon furnaces.

[0005] The air supply and cooling mechanism for a ferrosilicon furnace provided in this application adopts the following technical solution:

[0006] A cooling mechanism for a ferrosilicon furnace includes a fan, a bottom duct, and a side duct. A bottom plate is provided below the furnace bottom of the ferrosilicon furnace. The bottom plate is fixed to the furnace bottom of the ferrosilicon furnace by an annular plate. A ventilation chamber is formed between the furnace bottom and the bottom plate. One end of the bottom duct is connected to the ventilation chamber, and the other end of the bottom duct is sealed to the output end of the fan. The fan supplies air to the bottom duct.

[0007] Multiple sidewall ducts are spaced apart along the circumference of the furnace shell. The sidewall ducts are semi-circular, and the two ends of the sidewall ducts are fixedly connected to the outer wall of the furnace shell in the radial direction. A cooling chamber is formed between the sidewall ducts and the furnace shell. Ventilation holes are provided on the bottom of the furnace. The ventilation holes correspond one-to-one with the sidewall ducts. The ventilation holes are connected to the ventilation chamber and the cooling chamber.

[0008] Preferably, auxiliary air holes are provided on the sidewall at the top of the sidewall duct. The auxiliary air holes are arranged on both sides of the sidewall duct in the radial direction, and multiple auxiliary air holes are arranged at intervals along the vertical direction at the top of the sidewall duct.

[0009] Preferably, the auxiliary air vent is inclined upward on the side away from the central axis of the side wall duct.

[0010] Preferably, a cooling branch pipe communicating with the side wall duct is provided on the side wall at the top of the side wall duct, the central axis of the cooling branch pipe is perpendicular to the central axis of the side wall duct, and a cooling air hole is provided on the side of the cooling branch pipe near the furnace shell.

[0011] Preferably, there are three cooling branch pipes. Of the three cooling branch pipes, one cooling branch pipe is located on one side of the radial direction of the side wall duct, and the other two cooling branch pipes are located on the other side of the radial direction of the side wall duct. The central axis of the cooling branch pipe located on one side of the side wall duct intersects the midpoint of the perpendicular line of the two cooling branch pipes located on the other side of the radial direction of the side wall duct.

[0012] Preferably, the outer peripheral wall of the furnace shell is provided with annular reinforcing ribs, and multiple annular reinforcing ribs are arranged at intervals along the vertical direction. The inner wall of the annular reinforcing ribs is fixedly connected to the outer wall of the furnace shell. The side of the annular reinforcing ribs near the furnace shell is provided with a receiving slot for accommodating the side wall air duct. The inner wall of the receiving slot is fitted with the outer wall of the side wall air duct.

[0013] Preferably, the outer peripheral wall of the furnace shell is further provided with vertical reinforcing ribs. The vertical reinforcing ribs are provided between two adjacent annular reinforcing ribs, between the lowest annular reinforcing rib and the furnace bottom. Multiple vertical reinforcing ribs are provided at intervals along the circumference of the furnace shell. The two ends of the vertical reinforcing ribs are respectively fixed to the corresponding annular reinforcing rib or the top surface of the furnace bottom.

[0014] Preferably, a first I-beam is provided in the ventilation chamber, and multiple first I-beams are arranged in a circumferential array along the furnace bottom. One end of the first I-beam is close to the center of the furnace bottom, and the other end of the first I-beam is close to the outer peripheral wall of the furnace bottom. A second I-beam is provided between two adjacent first I-beams. The length of the second I-beam is less than that of the first I-beam. The two ends of the first I-beam are fixed to the bottom surface of the furnace bottom and the top surface of the bottom plate, respectively. The two ends of the second I-beam are fixed to the bottom surface of the furnace bottom and the top surface of the bottom plate, respectively.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] By using air cooling to cool the furnace bottom and furnace shell as a whole, not only can the welds of the furnace shell be prevented from cracking due to high temperature, but water leakage caused by water cooling is also reduced, thus protecting the furnace shell and improving its service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an air supply and cooling mechanism for a ferrosilicon furnace according to an embodiment of this application.

[0018] Figure 2 This is a cross-sectional view of the ventilation chamber used in the embodiments of this application.

[0019] Figure 3 This is a structural schematic diagram used in the embodiments of this application to illustrate the positional relationship between the ventilation holes, the ventilation chamber, and the side wall ducts.

[0020] Figure 4This is a structural schematic diagram used in the embodiments of this application to illustrate the side wall duct, the annular reinforcing rib, and the vertical reinforcing rib.

[0021] Figure 5 This is a schematic diagram of the structure of the side wall duct, auxiliary air vent, cooling branch pipe, and cooling air vent in the embodiments of this application.

[0022] Explanation of reference numerals in the attached drawings: 1. Furnace bottom; 11. Ventilation hole; 2. Furnace shell; 21. Annular reinforcing rib; 22. Vertical reinforcing rib; 3. Fan; 4. Bottom air duct; 5. Side wall air duct; 51. Auxiliary air hole; 6. Bottom plate; 61. Annular plate; 62. Concrete foundation; 7. Ventilation chamber; 71. First I-beam; 72. Second I-beam; 8. Cooling chamber; 9. Cooling branch pipe; 91. Cooling air hole. Detailed Implementation

[0023] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0024] This application discloses an air supply and cooling mechanism for a ferrosilicon furnace.

[0025] Reference Figures 1-5 The air supply and cooling mechanism for the ferrosilicon furnace includes a fan 3, a bottom air duct 4, and a side wall air duct 5. A bottom plate 6 is provided below the furnace bottom 1 of the ferrosilicon furnace. The bottom plate 6 is fixedly connected to the furnace bottom 1 of the ferrosilicon furnace through an annular plate 61. A ventilation chamber 7 is formed between the furnace bottom 1 and the bottom plate 6. One end of the bottom air duct 4 is connected to the ventilation chamber 7, and the other end of the air duct of the furnace bottom 1 is sealed to the output end of the fan 3. The fan 3 supplies air to the bottom air duct 4.

[0026] A concrete foundation 62 is provided below the base plate 6, and the bottom air duct 4 is U-shaped, with the right end of the bottom air duct 4 embedded in the concrete foundation 62.

[0027] Multiple side wall air ducts 5 are arranged at intervals along the circumference of the furnace shell 2. The side wall air ducts 5 are semi-circular. The two ends of the side wall air ducts 5 are fixedly connected to the outer wall of the furnace shell 2 in the radial direction. A cooling chamber 8 is formed between the side wall air ducts 5 and the furnace shell 2. Ventilation holes 11 are opened on the furnace bottom 1. The ventilation holes 11 correspond one-to-one with the side wall air ducts 5. The ventilation holes 11 are connected to the ventilation chamber 7 and the cooling chamber 8 at the same time.

[0028] Auxiliary air holes 51 are provided on the side wall at the top of the side wall duct 5. The auxiliary air holes 51 are located on both sides of the radial direction of the side wall duct 5, and multiple auxiliary air holes 51 are arranged at intervals along the vertical direction at the top of the side wall duct 5.

[0029] A cooling branch pipe 9 is provided on the side wall at the top of the side wall air duct 5, which is connected to the side wall air duct 5. The central axis of the cooling branch pipe 9 is perpendicular to the central axis of the side wall air duct 5. A cooling air hole 91 is provided on the side of the cooling branch pipe 9 near the furnace shell 2.

[0030] There are three cooling branch pipes 9. One of the three cooling branch pipes 9 is located on one side of the radial direction of the side wall duct 5, and the other two cooling branch pipes 9 are located on the other side of the radial direction of the side wall duct 5. The central axis of the cooling branch pipe 9 located on one side of the side wall duct 5 intersects the midpoint of the perpendicular line of the two cooling branch pipes 9 located on the other side of the radial direction of the side wall duct 5.

[0031] Air is supplied to the bottom duct 4 by the blower 3 to cool the furnace bottom 1. The air then enters the cooling chamber 8 between the side wall duct 5 and the furnace shell 2 through the ventilation hole 11 to cool the furnace shell 2. When the air moves upward to the top of the side wall duct 5, it passes through the auxiliary air hole 51 to cool the furnace shell 2 between two adjacent side wall ducts 5. At the same time, the cooling branch pipe 9 and the cooling air hole 91 also cool the furnace shell 2 between two adjacent side wall ducts 5, improving the cooling effect on the top of the furnace shell 2. By using air cooling to cool the furnace bottom 1 and the furnace shell 2 as a whole, not only is cracking of the weld seams of the furnace shell 2 due to high temperature prevented, but water leakage caused by water cooling is also reduced, thus protecting the furnace shell 2 and extending its service life.

[0032] The auxiliary air vent 51 is tilted upward on the side away from the central axis of the side wall duct 5, making it easier for the air to flow upward.

[0033] The outer peripheral wall of the furnace shell 2 is provided with annular reinforcing ribs 21. Multiple annular reinforcing ribs 21 are arranged at intervals along the vertical direction. The inner wall of the annular reinforcing ribs 21 is fixedly connected to the outer wall of the furnace shell 2. The side of the annular reinforcing ribs 21 near the furnace shell 2 is provided with a receiving slot for the side wall air duct 5 to be accommodated. The inner wall of the receiving slot is in contact with the outer wall of the side wall air duct 5.

[0034] Vertical reinforcing ribs 22 are also provided on the outer peripheral wall of the furnace shell 2. These ribs are positioned between adjacent annular reinforcing ribs 21 and between the lowest annular reinforcing rib 21 and the furnace bottom 1. Multiple vertical reinforcing ribs 22 are spaced apart along the circumference of the furnace shell 2, and both ends of each rib 22 are fixed to the corresponding annular reinforcing rib 21 or the top surface of the furnace bottom 1. In actual production, several components are installed on the outer peripheral wall of the furnace shell 2, and the vertical reinforcing ribs 22 can be added or removed at different locations on the furnace shell 2 according to actual needs.

[0035] The annular reinforcing ribs 21 and vertical reinforcing ribs 22 improve the overall structural strength between the side wall air duct 5 and the furnace shell 2, reduce the deformation of the furnace shell 2 and the side wall air duct 5, and further improve the service life of the furnace shell 2.

[0036] A first I-beam 71 is installed inside the ventilation chamber 7. Multiple first I-beams 71 are arranged in a circumferential array along the furnace bottom 1. One end of each first I-beam 71 is close to the center of the furnace bottom 1, and the other end is close to the outer peripheral wall of the furnace bottom 1. A second I-beam 72 is installed between two adjacent first I-beams 71. The length of the second I-beam 72 is shorter than that of the first I-beam 71. Both ends of the first I-beam 71 are fixed to the bottom surface of the furnace bottom 1 and the top surface of the bottom plate 6, respectively. Both ends of the second I-beam 72 are fixed to the bottom surface of the furnace bottom 1 and the top surface of the bottom plate 6, respectively. The arrangement of the first I-beams 71 and the second I-beams 72 supports the ventilation chamber 7, thereby improving the service life of the ferrosilicon furnace.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cooling mechanism for a ferrosilicon furnace, characterized in that: The furnace includes a fan, a bottom air duct, and side wall air ducts. A bottom plate is provided below the furnace bottom of the ferrosilicon furnace. The bottom plate is fixed to the furnace bottom of the ferrosilicon furnace by an annular plate. A ventilation chamber is formed between the furnace bottom and the bottom plate. One end of the bottom air duct is connected to the ventilation chamber, and the other end of the bottom air duct is sealed to the output end of the fan. The fan blows air into the bottom air duct. Multiple sidewall ducts are spaced apart along the circumference of the furnace shell. The sidewall ducts are semi-circular, and the two ends of the sidewall ducts are fixedly connected to the outer wall of the furnace shell in the radial direction. A cooling chamber is formed between the sidewall ducts and the furnace shell. Ventilation holes are provided on the bottom of the furnace. The ventilation holes correspond one-to-one with the sidewall ducts. The ventilation holes are connected to the ventilation chamber and the cooling chamber.

2. The air supply and cooling mechanism for a ferrosilicon furnace according to claim 1, characterized in that: The sidewall of the sidewall duct is provided with auxiliary air holes on the sidewall at the top. The auxiliary air holes are located on both sides of the sidewall duct in the radial direction, and multiple auxiliary air holes are arranged at intervals along the vertical direction at the top of the sidewall duct.

3. The air supply and cooling mechanism for a ferrosilicon furnace according to claim 2, characterized in that: The auxiliary air vent is tilted upwards on the side away from the central axis of the side wall duct.

4. The air supply and cooling mechanism for a ferrosilicon furnace according to claim 1, characterized in that: A cooling branch pipe is provided on the side wall at the top of the side wall air duct, which is connected to the side wall air duct. The central axis of the cooling branch pipe is perpendicular to the central axis of the side wall air duct, and a cooling air hole is opened on the side of the cooling branch pipe near the furnace shell.

5. The air supply and cooling mechanism for a ferrosilicon furnace according to claim 4, characterized in that: The cooling branch pipe is provided with three pipes. One of the three cooling branch pipes is located on one side of the side wall duct in the radial direction, and the other two cooling branch pipes are located on the other side of the side wall duct in the radial direction. The central axis of the cooling branch pipe located on one side of the side wall duct intersects the midpoint of the perpendicular line of the two cooling branch pipes located on the other side of the side wall duct in the radial direction.

6. The air supply and cooling mechanism for a ferrosilicon furnace according to claim 1, characterized in that: The outer peripheral wall of the furnace shell is provided with annular reinforcing ribs, and multiple annular reinforcing ribs are arranged at intervals along the vertical direction. The inner wall of the annular reinforcing ribs is fixedly connected to the outer wall of the furnace shell. A receiving slot is opened on the side of the annular reinforcing ribs near the furnace shell for accommodating the side wall air duct. The inner wall of the receiving slot is fitted to the outer wall of the side wall air duct.

7. The air supply and cooling mechanism for a ferrosilicon furnace according to claim 6, characterized in that: Vertical reinforcing ribs are also provided on the outer peripheral wall of the furnace shell. The vertical reinforcing ribs are located between two adjacent annular reinforcing ribs, between the lowest annular reinforcing rib and the furnace bottom. Multiple vertical reinforcing ribs are arranged at intervals along the circumference of the furnace shell. The two ends of the vertical reinforcing ribs are respectively fixed to the corresponding annular reinforcing rib or the top surface of the furnace bottom.

8. The air supply and cooling mechanism for a ferrosilicon furnace according to claim 1, characterized in that: The ventilation chamber is provided with a first I-beam, and multiple first I-beams are arranged in a circumferential array along the furnace bottom. One end of the first I-beam is close to the center of the furnace bottom, and the other end of the first I-beam is close to the outer peripheral wall of the furnace bottom. A second I-beam is provided between two adjacent first I-beams. The length of the second I-beam is less than that of the first I-beam. The two ends of the first I-beam are fixed to the bottom surface of the furnace bottom and the top surface of the bottom plate, respectively. The two ends of the second I-beam are fixed to the bottom surface of the furnace bottom and the top surface of the bottom plate, respectively.

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