A furnace resistance temperature measuring frame for industrial silicon smelting

Abstract

This utility model relates to the technical field of industrial silicon smelting equipment, specifically to an in-furnace resistance temperature measuring frame for industrial silicon smelting, comprising a furnace body, a support structure, a heat dissipation and protection structure, and an electrode measuring structure; the support structure includes an L-shaped support base and a connecting plate, one side of which is fixedly connected to the support base via a heat insulation plate, and an electric telescopic rod is fixedly mounted on top of the support base; the heat dissipation and protection structure is a heat insulation shell, which wraps around the support base and the electric telescopic rod, and the top of the heat insulation shell is connected to a heat dissipation channel extending to the outside of the furnace body; the electrode measuring structure includes an electrode rod, an electrode head, and a connecting frame, with the extended end of the electric telescopic rod fixedly connected to the top of the connecting frame, a rotating ring rotatably connected to the middle of the connecting frame, and the outer side of the rotating ring fixedly connected to one end of the electrode rod via a connecting lug, and the other end of the electrode rod fixedly connected to the electrode head.

Description

Technical Field

[0001] This utility model relates to the technical field of industrial silicon smelting equipment, specifically to an in-furnace resistance temperature measuring frame used in industrial silicon smelting. Background Technology

[0002] The industrial silicon smelting furnace is the core equipment in the industrial silicon production process. It is mainly used to react silica (primarily silicon dioxide) and carbonaceous reducing agents (such as charcoal, petroleum coke, and bituminous coal) under high temperature and strong reducing conditions to produce industrial silicon. During the smelting process, the furnace resistance has a crucial impact on the smelting quality, efficiency, and energy consumption. For example, different furnace resistance values ​​correspond to different heating powers and reaction rates. Accurate measurement of furnace resistance helps operators adjust smelting parameters in a timely manner, ensuring the production of industrial silicon products with stable quality and meeting purity requirements. In the industrial silicon smelting process, accurate measurement of furnace temperature is crucial for controlling the smelting process, improving product quality, and increasing energy utilization.

[0003] Currently, resistance temperature measurement is a commonly used temperature measurement method. During use, the measuring device needs to be installed inside the furnace using a bracket. However, the high temperature inside the furnace can easily damage the electronic equipment inside the temperature measuring bracket. The inability to dissipate heat in a timely and effective manner will accelerate the aging and damage risk of the internal equipment of the temperature measuring bracket, resulting in a short service life of the temperature measuring bracket. Secondly, the electrode arrangement of some temperature measuring brackets is unreasonable, and they cannot make good contact with the medium inside the furnace, resulting in inaccurate resistance measurement values. Utility Model Content

[0004] This invention provides a furnace resistance temperature measuring frame for industrial silicon smelting, to solve the problems of poor heat dissipation and unreasonable electrode arrangement in existing temperature measuring frames in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is a furnace resistance temperature measuring frame for industrial silicon smelting, including a furnace body, a support structure, a heat dissipation and protection structure, and an electrode measuring structure.

[0006] The support structure includes an L-shaped bracket and a connecting plate. The connecting plate is fixed inside the furnace body by multiple fixing bolts, and one side of the connecting plate is fixedly connected to the bracket by a heat insulation plate. An electric telescopic rod is fixed above the bracket.

[0007] The heat dissipation and protection structure is a heat insulation shell, which is wrapped around the outside of the support base and the electric telescopic rod. The top of the heat insulation shell is connected to a heat dissipation channel that extends to the outside of the furnace body. An air inlet cavity is provided in the middle of the heat dissipation channel, and air outlet cavities are provided on both sides of the heat dissipation channel.

[0008] The electrode measurement structure includes an electrode rod, an electrode head, and a connecting frame. The extended end of the electric telescopic rod at the top of the connecting frame is fixedly connected. A rotating ring is rotatably connected to the middle of the connecting frame, and the outer side of the rotating ring is fixedly connected to one end of the electrode rod through a connecting lug. The other end of the electrode rod is fixedly connected to the electrode head. The electrode head is a spherical object, and its surface is provided with multiple protrusions to increase the contact area with the medium inside the furnace and improve the contact effect between the electrode and the medium inside the furnace.

[0009] As a preferred technical solution of this utility model, the heat insulation shell includes an inner ceramic fiber heat insulation layer and an outer metal protective layer from the inside to the outside. The ceramic fiber heat insulation layer has a thickness of 5mm-10mm and is used to block the influence of high temperature in the furnace on the internal equipment of the temperature measuring frame. The metal protective layer is made of stainless steel and has a thickness of 2mm-3mm and is used to prevent external physical damage.

[0010] As a preferred technical solution of this utility model, the air inlet cavity is located outside the furnace body and is connected to a cooling fan, the air outlet cavity is a closed structure at the end near the cooling fan, and the air outlet cavity is provided with air outlets perpendicular to the heat dissipation channel on both sides of the cooling fan.

[0011] As a preferred embodiment of this utility model, the extended end of the electric telescopic rod is made of ceramic fiber material.

[0012] As a preferred technical solution of this utility model, a positioning bolt is provided above the rotating ring on the connecting frame, and the rotating ring is fixed by tightening the positioning bolt.

[0013] As a preferred embodiment of this utility model, the number of connecting ears is at least two, and the multiple connecting ears are arranged at equal angles on the rotating ring.

[0014] As a preferred embodiment of this utility model, the electrode rod and the connecting lug are connected by screws and nuts, thereby allowing the installation angle to be adjusted during installation.

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] 1. This resistance temperature measuring frame effectively blocks the influence of high furnace temperatures on the internal equipment through the ceramic fiber insulation layer in the heat-insulating shell, preventing damage to the equipment due to high temperatures and extending the service life of the temperature measuring frame. Simultaneously, the outer metal protective layer (made of stainless steel) can prevent possible physical damage from the outside, such as collisions and friction during industrial silicon smelting.

[0017] 2. This resistance temperature measuring frame can adjust the height and other position parameters of the temperature measuring frame according to actual needs through the electric telescopic rod in the support structure. The electrode measuring structure has the characteristics of multi-angle rotation and adjustable installation angle, which makes the electrode better adaptable to the complex and ever-changing medium in the furnace, greatly improving the contact effect between the electrode and the medium in the furnace, thereby improving the accuracy of resistance measurement.

[0018] 3. This resistance temperature measuring frame, through its heat dissipation channel and cooling fan in the heat dissipation protection structure, can effectively dissipate the heat transferred from the furnace to the temperature measuring frame in a timely manner, avoiding problems such as aging and damage to the internal equipment of the temperature measuring frame due to overheating, and further improving the reliability and stability of the temperature measuring frame. Attached Figure Description

[0019] Figure 1 This is a structural diagram of an in-furnace resistance temperature measuring frame for industrial silicon smelting according to the present invention.

[0020] Figure 2 This is a structural diagram of the temperature measuring frame of the furnace resistance temperature measuring frame used in industrial silicon smelting according to the present invention.

[0021] Figure 3 This is a three-dimensional cross-sectional view of the temperature measuring frame of the furnace resistance temperature measuring frame used in industrial silicon smelting according to the present invention.

[0022] Figure 4 This is a structural diagram of the connecting frame of a furnace resistance temperature measuring frame used in industrial silicon smelting according to the present invention.

[0023] Figure 5 This is a structural diagram of the heat dissipation channel of an in-furnace resistance temperature measuring rack for industrial silicon smelting according to the present invention.

[0024] As shown in the figure:

[0025] 1. Furnace body; 2. Support base; 3. Connecting plate; 4. Fixing bolts; 5. Heat insulation plate; 6. Electric telescopic rod; 7. Heat insulation shell; 8. Heat dissipation channel; 9. Air inlet cavity; 10. Air outlet cavity; 11. Electrode rod; 12. Electrode head; 13. Connecting frame; 14. Rotating ring; 15. Connecting ear; 16. Multiple protrusions; 17. Ceramic fiber heat insulation layer; 18. Metal protective layer; 19. Cooling fan; 20. Air outlet; 21. Positioning bolts. Detailed Implementation

[0026] 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.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1:

[0029] As per the instruction manual Figure 1-5 As shown, a furnace resistance temperature measuring frame for industrial silicon smelting includes a furnace body 1, a support structure, a heat dissipation and protection structure, and an electrode measuring structure.

[0030] In this utility model, the support structure includes an L-shaped bracket 2 and a connecting plate 3. The connecting plate 3 is fixed inside the furnace body 1 by multiple fixing bolts 4, and one side of the connecting plate 3 is fixedly connected to the bracket 2 by a heat insulation plate 5. An electric telescopic rod 6 is fixed on the top of the bracket 2.

[0031] In this utility model, the heat dissipation and protection structure is a heat insulation shell 7. The heat insulation shell 7 includes an inner ceramic fiber heat insulation layer 17 and an outer metal protective layer 18 from the inside to the outside. The ceramic fiber heat insulation layer 17 has a thickness of 5mm-10mm and is used to block the influence of the high temperature inside the furnace on the internal equipment of the temperature measuring frame. The metal protective layer 18 is made of stainless steel and has a thickness of 2mm-3mm. It is used to prevent external physical damage. The heat insulation shell 7 is wrapped around the outside of the support base 2 and the electric telescopic rod 6. The top of the heat insulation shell 7 is connected to a heat dissipation channel 8 that extends to the outside of the furnace body 1. An air inlet cavity 9 is provided in the middle of the heat dissipation channel 8, and air outlet cavities 10 are provided on both sides of the heat dissipation channel 8. The air inlet cavity 9 is located outside the furnace body 1 and is connected to a cooling fan 19. The end of the air outlet cavity 10 near the cooling fan 19 is a closed structure, and the air outlet cavity 10 is located on both sides of the cooling fan 19 with an air outlet 20 perpendicular to the heat dissipation channel 8.

[0032] In this utility model, the electrode measuring structure includes an electrode rod 11, an electrode head 12, and a connecting frame 13. The extended end of the electric telescopic rod 6 at the top of the connecting frame 13 is fixedly connected. The extended end of the electric telescopic rod 6 is made of ceramic fiber. A rotating ring 14 is rotatably connected in the middle of the connecting frame 13. A positioning bolt 21 is provided above the connecting frame 13 at the rotating ring 14. The rotating ring 14 is fixed by tightening the positioning bolt 21. The outer side of the rotating ring 14 is fixedly connected to one end of the electrode rod 11 through a connecting ear 15. There are at least two connecting ears 15, and multiple connecting ears 15 are arranged at equal angles on the rotating ring 14. The electrode rod 11 and the connecting ear 15 are connected by screws and nuts, so that the installation angle can be adjusted during installation. The electrode head 12 is a spherical body, and the surface of the electrode head 12 is provided with multiple protrusions 16, which increases the contact area with the medium in the furnace and improves the contact effect between the electrode and the medium in the furnace.

[0033] In a specific implementation of this invention, the electrode head 12 in the electrode measuring structure is in contact with the medium inside the furnace. Since there is resistance inside the furnace, when a certain voltage is applied across the electrode, according to Ohm's law (I=U / R, where I is current, U is voltage, and R is resistance), the resistance value inside the furnace can be calculated by measuring the magnitude of the current in the measuring circuit.

[0034] During use, if it is necessary to adjust the contact angle between the electrode and the medium inside the furnace, the positioning bolt 21 can be loosened, the rotating ring 14 can be rotated to a suitable angle, and then the positioning bolt 21 can be tightened to fix it. If it is necessary to adjust the installation angle of the electrode rod 11, the screws and nuts between the electrode rod 11 and the connecting lug 15 can be loosened, the angle can be adjusted, and then they can be tightened again. At the same time, according to the specifications of the furnace body 1 or the different requirements of the smelting stage, the height of the temperature measuring frame can be adjusted by extending and retracting the electric telescopic rod 6.

[0035] During use, the cooling fan 19 is turned on, and air enters from the air inlet 9 of the heat dissipation channel 8. After passing through the heat dissipation channel 8, it enters the interior of the heat insulation shell 7 and the heat is discharged from the air outlet 20 located on both sides of the cooling fan 19 and perpendicular to the heat dissipation channel 8, forming an effective heat dissipation airflow, which dissipates the heat inside the temperature measuring frame to the external environment of the furnace.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. An in-furnace resistance temperature measuring frame for industrial silicon smelting, characterized by: Includes furnace body (1), supporting structure, heat dissipation and protection structure and electrode measurement structure; The support structure includes an L-shaped support base (2) and a connecting plate (3). The connecting plate (3) is fixed inside the furnace body (1) by multiple fixing bolts (4), and one side of the connecting plate (3) is fixedly connected to the support base (2) by a heat insulation plate (5). An electric telescopic rod (6) is fixed above the support base (2). The heat dissipation and protection structure is a heat insulation shell (7). The heat insulation shell (7) is wrapped around the outside of the support base (2) and the electric telescopic rod (6). The top of the heat insulation shell (7) is connected to a heat dissipation channel (8) that extends to the outside of the furnace body (1). An air inlet cavity (9) is provided in the middle of the heat dissipation channel (8), and air outlet cavities (10) are provided on both sides of the heat dissipation channel (8). The electrode measurement structure includes an electrode rod (11), an electrode head (12), and a connecting frame (13). The extended end of the electric telescopic rod (6) at the top of the connecting frame (13) is fixedly connected. A rotating ring (14) is rotatably connected in the middle of the connecting frame (13). The outer side of the rotating ring (14) is fixedly connected to one end of the electrode rod (11) through a connecting ear (15). The other end of the electrode rod (11) is fixedly connected to the electrode head (12). The electrode head (12) is a spherical object, and multiple protrusions (16) are provided on the surface of the electrode head (12).

2. The furnace resistance temperature measuring frame for industrial silicon smelting according to claim 1, characterized in that: The heat insulation shell (7) consists of an inner ceramic fiber heat insulation layer (17) and an outer metal protective layer (18) from the inside to the outside. The ceramic fiber heat insulation layer (17) has a thickness of 5mm-10mm and is used to block the influence of high temperature in the furnace on the internal equipment of the temperature measuring frame. The metal protective layer (18) is made of stainless steel and has a thickness of 2mm-3mm and is used to prevent external physical damage.

3. The furnace resistance temperature measuring frame for industrial silicon smelting according to claim 1, characterized in that: The air inlet cavity (9) is located outside the furnace body (1) and is connected to a cooling fan (19). The air outlet cavity (10) is a closed structure located near the cooling fan (19), and the air outlet cavity (10) is provided with air outlets (20) perpendicular to the heat dissipation channel (8) on both sides of the cooling fan (19).

4. The furnace resistance temperature measuring frame for industrial silicon smelting according to claim 1, characterized in that: The extended end of the electric telescopic rod (6) is made of ceramic fiber.

5. The furnace resistance temperature measuring frame for industrial silicon smelting according to claim 1, characterized in that: The connecting frame (13) is provided with a positioning bolt (21) above the rotating ring (14) for interference fixing of the rotating ring (14).

6. The furnace resistance temperature measuring frame for industrial silicon smelting according to claim 1, characterized in that: The number of connecting ears (15) is at least two, and multiple connecting ears (15) are arranged at equal angles on the rotating ring (14).

7. The furnace resistance temperature measuring frame for industrial silicon smelting according to claim 1, characterized in that: The electrode rod (11) and the connecting ear (15) are connected by screws and nuts.

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