Anti-cracking rod of reduction furnace

Abstract

The utility model belongs to the technical field of reduction furnaces, and particularly relates to a reduction furnace anti-cracking rod which comprises a base, the lower end of the base is fixedly connected with three supporting legs arranged in an annular array, the upper end of the base is provided with a furnace shell, and the left side of the base is provided with a DCS interlocking protection system controller. The supporting leg on the right side is fixedly connected with a supporting frame. According to the scheme, the mounting ring is pushed to be in contact with the supporting ring, the mounting ring can be fixed under the structures of the screw rod, the nut and the like, and the problems of vibration deflection and thread disengaging of the nut can be avoided in cooperation with the jacking effect of the supporting spring, so that the long-term stability of the mounting ring is guaranteed; and infrared temperature measurement can be carried out on objects such as crystal bars in the furnace shell, and in cooperation with the function of a DCS interlocking protection system controller, timely emergency disconnection operation can be carried out on the reduction furnace in an abnormal state, and the anti-cracking effect of the crystal bars is improved.

Description

Technical Field

[0001] This utility model belongs to the field of reduction furnace technology, and specifically relates to a crack-preventing rod for a reduction furnace. Background Technology

[0002] The anti-crack control system for reduction furnaces is a key piece of equipment used in metal reduction furnaces (such as those for the production of silicon, magnesium, and titanium). It is mainly used to prevent the reaction rods (or electrodes) inside the furnace from breaking due to high temperature, thermal stress, or uneven current, thus ensuring the stability and safety of the production process.

[0003] A utility model patent with patent authorization announcement number CN217555823U discloses a polycrystalline silicon reduction furnace, which includes: a furnace cylinder having a reduction chamber for placing silicon cores, and the furnace cylinder having a preheating hole penetrating the furnace wall; a microwave emitting device installed at the preheating hole for emitting microwaves into the reduction chamber through the preheating hole to heat the reduction chamber; and a sight glass installed at the preheating hole for sealing the reduction chamber, with the microwave emitting device located on the outside of the sight glass, and a cooling channel formed inside the sight glass for connecting to an external cooling source.

[0004] However, existing reduction furnaces also have certain drawbacks. Although existing reduction furnaces use infrared temperature probes, thermocouples and other temperature sensing devices to monitor the temperature inside the furnace shell in real time and avoid the problem of polycrystalline silicon rods cracking, the fixed installation position of infrared temperature probes, thermocouples and other temperature sensing devices results in poor monitoring range and dynamics of the furnace shell temperature. Summary of the Invention

[0005] The purpose of this utility model is to provide a crack-preventing rod for a reduction furnace, which solves the problem that although existing reduction furnaces use infrared temperature probes, thermocouples and other temperature sensing devices to monitor the temperature inside the furnace shell in real time and avoid cracking of polycrystalline silicon rods, the fixed installation position of the infrared temperature probes, thermocouples and other temperature sensing devices results in poor monitoring range and dynamics of the furnace shell temperature.

[0006] To achieve the above objectives, this utility model provides a crack-prevention rod for a reduction furnace, comprising a base, three supporting legs arranged in a circular array fixedly connected to the lower end of the base, a furnace shell provided at the upper end of the base, a DCS interlock protection system controller provided on the left side of the base, a support frame fixedly connected to the supporting legs on the right side, a sliding groove provided on the vertical part of the support frame, a guide rod fixedly connected to the inner wall of the sliding groove, a movable plate slidably sleeved on the outer side of the guide rod, the movable plate slidably connected to the sliding groove, a servo motor fixedly mounted on the vertical part of the support frame, a stud fixedly connected to the output shaft of the servo motor, the stud and the movable plate being threadedly connected, and a crack-prevention monitoring mechanism provided on the movable plate.

[0007] The principle of this utility model is as follows: by pushing the mounting ring into contact with the support ring, the screw passes through the mounting ring, and then the washer passes through the screw, so that the washer contacts the mounting ring. This pushes the nut into contact with the screw, and by rotating the nut, the nut is installed under the threaded connection, so that the nut and the washer are in tight contact, thus fixing the mounting ring. Then, the fixing plate is welded and fixed to the end face of the screw, and the two ends of the support spring are welded and fixed to the fixing plate and the fixing ring, thereby tightening and limiting the use of the nut, and avoiding the problems of vibration, deflection, and loosening of the nut.

[0008] By setting up an infrared temperature sensor, the temperature inside the furnace shell can be monitored. When the servo motor drives the output shaft to rotate, it can drive the stud to rotate. With the threaded connection, it can drive the moving plate to move, which in turn moves the mounting ring, and finally moves the infrared temperature sensor to adjust its position. This improves the range and dynamic effect of monitoring the temperature inside the furnace shell. In conjunction with the DCS interlock protection system controller, it can promptly and urgently disconnect the reduction furnace in abnormal conditions, improving the crack prevention effect of the crystal rod.

[0009] The beneficial effects of this utility model are as follows: This solution, by pushing the mounting ring into contact with the support ring, can fix the mounting ring under the structure of screws, nuts, etc., and with the tightening action of the support spring, can avoid the vibration deflection and delamination of the nut, thus ensuring the long-term stability of the mounting ring. Under the action of the infrared temperature sensor, infrared temperature measurement can be performed on objects such as crystal rods inside the furnace shell. With the action of the DCS interlock protection system controller, the reduction furnace in abnormal state can be shut down in time and emergency, improving the anti-crack effect of the crystal rods. Through the action of servo motors, studs, and other structures, the moving plate can be driven to move, thereby driving the infrared temperature sensor to move and dynamically monitor the temperature inside the furnace shell, so as to ensure good monitoring effect. Under the action of auxiliary cylinders, auxiliary frames, and other structures, the counterweight balance of the support ring, mounting ring, and other mechanisms can be ensured, avoiding the problem of rigidity damage to components such as screws and guide rods.

[0010] Furthermore, auxiliary cylinders are fixedly connected to both the upper and lower ends of the movable plate. The auxiliary cylinders are slidably connected to the studs. By setting the auxiliary cylinders, the movable plate can be moved in an auxiliary manner to improve the durability of the movable plate.

[0011] Furthermore, an auxiliary frame is fixedly connected to the right end of the movable plate, and multiple evenly distributed counterweights are provided on the inner wall of the auxiliary frame. By setting the auxiliary frame and counterweights, the uniformity of force on the movable plate can be improved.

[0012] Furthermore, the crack prevention monitoring mechanism includes a support ring. The support ring is fixedly sleeved on the outer side of the movable plate. The upper end of the support ring contacts an installation ring. An infrared temperature sensor is installed on the inner wall of the installation ring. A screw is fixedly connected to the upper end of the support ring. The screw is slidably connected to the installation ring. A washer is slidably sleeved on the outer side of the screw. The washer contacts the installation ring. A nut is threadedly connected to the outer side of the screw. The nut contacts the washer. A fixing ring is fixedly sleeved on the outer side of the nut. A fixing plate is welded to the upper end of the screw. A support spring is welded to the lower end of the fixing plate. The other end of the support spring is welded to the fixing ring. Through the arrangement of the screw, nut, and other structures, the installation ring can be installed. With the support spring, fixing plate, and other structures, the nut can be tightened and anti-deflection treatment can be performed to ensure the stability of the nut installation.

[0013] Furthermore, four infrared temperature sensors are provided, arranged in a circular array on the mounting ring. By setting up the infrared temperature sensors, the temperature inside the furnace shell can be monitored.

[0014] Furthermore, the gasket is in the shape of a ring and is made of rubber. The gasket improves the stability of the nut installation, and the rubber material has good contact properties and durability.

[0015] Furthermore, multiple support springs are provided, and the multiple support springs are symmetrically distributed on the fixed plate. By providing support springs, the nut can be compressed. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of the anti-cracking rod of the reduction furnace in an embodiment of the present invention;

[0017] Figure 2 The anti-crack rod of the reduction furnace in the embodiment of the present invention Figure 1 A partial top view;

[0018] Figure 3 The anti-crack rod of the reduction furnace in the embodiment of the present invention Figure 1 A partial side view;

[0019] Figure 4 The anti-crack rod of the reduction furnace in the embodiment of the present invention Figure 1 Enlarged view of point A.

[0020] The following detailed description illustrates the specific implementation method:

[0021] The reference numerals in the accompanying drawings include: base 1, support foot 2, furnace shell 3, DCS interlock protection system controller 4, support frame 5, slide rail 6, guide rod 7, moving plate 8, servo motor 9, stud 10, auxiliary cylinder 11, auxiliary frame 12, counterweight 13, crack prevention monitoring mechanism 14, support ring 140, mounting ring 141, infrared temperature sensor 142, screw 143, gasket 144, nut 145, fixing ring 146, fixing plate 147, and support spring 148. Detailed Implementation

[0022] The implementation examples are basically as follows Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this embodiment provides a crack-resistant rod for a reduction furnace, including a base 1. Three support legs 2 arranged in a circular array are fixedly connected to the lower end of the base 1. A furnace shell 3 is provided at the upper end of the base 1. A DCS interlock protection system controller 4 is provided on the left side of the base 1. A support frame 5 is fixedly connected to the right support leg 2. A sliding groove 6 is provided on the vertical part of the support frame 5. A guide rod 7 is fixedly connected to the inner wall of the sliding groove 6. A movable plate 8 is slidably sleeved on the outer side of the guide rod 7. The movable plate 8 is slidably connected to the sliding groove 6. A servo motor 9 is fixedly installed on the vertical part of the support frame 5. A stud 10 is fixedly connected to the output shaft of the servo motor 9. The stud 10 is threadedly connected to the movable plate 8.

[0023] like Figure 1 , Figure 2 , Figure 3 As shown, auxiliary cylinders 11 are fixedly connected to both the upper and lower ends of the movable plate 8. The auxiliary cylinders 11 are slidably connected to the studs 10. The auxiliary cylinders 11 can be used to assist in moving the movable plate 8, thereby improving the durability of the movable plate 8. An auxiliary frame 12 is fixedly connected to the right end of the movable plate 8. Multiple evenly distributed counterweights 13 are provided on the inner wall of the auxiliary frame 12. The uniformity of force on the movable plate 8 can be improved by the auxiliary frame 12 and the counterweights 13.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a crack prevention monitoring mechanism 14 is provided on the movable plate 8. The crack prevention monitoring mechanism 14 includes a support ring 140. The support ring 140 is fixedly sleeved on the outer side of the movable plate 8. The upper end of the support ring 140 contacts a mounting ring 141. An infrared temperature sensor 142 is provided on the inner wall of the mounting ring 141. A screw 143 is fixedly connected to the upper end of the support ring 140. The screw 143 is slidably connected to the mounting ring 141. A washer 144 is slidably sleeved on the outer side of the screw 143. The washer 144 contacts the mounting ring 141. A screw thread is threadedly connected to the outer side of the screw 143. The nut 145 contacts the washer 144. A retaining ring 146 is fixedly sleeved on the outer side of the nut 145. A retaining plate 147 is welded to the upper end of the screw 143. A support spring 148 is welded to the lower end of the retaining plate 147. The other end of the support spring 148 is welded to the retaining ring 146. Through the arrangement of the screw 143, nut 145 and other structures, the mounting ring 141 can be installed. With the support spring 148, retaining plate 147 and other structures, the nut 145 can be tightened and anti-deflection treatment can be carried out to ensure the stability of the nut 145 installation.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, four infrared temperature sensors 142 are arranged in a ring array on the mounting ring 141. The infrared temperature sensors 142 can be used to monitor the temperature inside the furnace shell 3. The gasket 144 is in the shape of a ring and is made of rubber. The gasket 144 can improve the stability of the nut 145 installation, and the rubber material has good contact and durability. Multiple support springs 148 are provided and are symmetrically distributed on the fixing plate 147. The support springs 148 can be used to compress the nut 145.

[0026] The specific implementation process of this utility model is as follows: By pushing the mounting ring 141 into contact with the support ring 140, the screw 143 passes through the mounting ring 141. Then, the washer 144 is pushed through the screw 143, so that the washer 144 contacts the mounting ring 141. The nut 145 is pushed into contact with the screw 143. The nut 145 is rotated, and under the threaded connection, the nut 145 is installed, so that the nut 145 and the washer 144 are in close contact, and the mounting ring 141 is fixed. Then, the fixing plate 147 is welded and fixed to the end face of the screw 143. The two ends of the support spring 148 are distributed and welded and fixed to the fixing plate 147 and the fixing ring 146, thereby tightening and limiting the use of the nut 145, avoiding the vibration, deflection and loosening of the nut 145.

[0027] The infrared temperature sensor 142 can be used to monitor the temperature inside the furnace shell 3. When the servo motor 9 drives the output shaft to rotate, it can drive the stud 10 to rotate. With the threaded connection, it can drive the moving plate 8 to move, which in turn moves the mounting ring 141, and finally drives the infrared temperature sensor 142 to move. The position of the infrared temperature sensor 142 is adjusted to improve the range and dynamic effect of temperature monitoring inside the furnace shell 3. In conjunction with the DCS interlock protection system controller 4, it can promptly and urgently disconnect the reduction furnace in abnormal conditions, improving the crack prevention effect of the crystal rod.

[0028] This solution, by pushing the mounting ring 141 into contact with the support ring 140, and with the screw 143, nut 145 and other structures, can fix the mounting ring 141. With the tightening action of the support spring 148, it can avoid the vibration deflection and delamination of the nut 145, thus ensuring the long-term stability of the mounting ring 141. With the action of the infrared temperature sensor 142, infrared temperature measurement can be performed on the crystal rods and other objects inside the furnace shell 3. With the action of the DCS interlock protection system controller 4, the reduction furnace in abnormal state can be shut down in time, improving the anti-crack effect of the crystal rods. Through the action of the servo motor 9, stud 10 and other structures, the moving plate 8 can be moved, thereby moving the infrared temperature sensor 142 to dynamically monitor the internal temperature of the furnace shell 3, ensuring good monitoring effect. With the action of the auxiliary cylinder 11, auxiliary frame 12 and other structures, the counterweight balance of the support ring 140, mounting ring 141 and other mechanisms can be ensured, avoiding the rigidity damage of components such as screw 143 and guide rod 7.

[0029] It should be noted in advance that, in this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A reduction furnace anti-cracking rod comprising a base, characterized in that: The lower end of the base is fixedly connected to three support legs arranged in a circular array. The upper end of the base is provided with a furnace shell. A DCS interlock protection system controller is provided on the left side of the base. A support frame is fixedly connected to the support legs on the right side. A sliding groove is opened in the vertical part of the support frame. A guide rod is fixedly connected to the inner wall of the sliding groove. A moving plate is slidably sleeved on the outer side of the guide rod. The moving plate is slidably connected to the sliding groove. A servo motor is fixedly installed in the vertical part of the support frame. A stud is fixedly connected to the output shaft of the servo motor. The stud is threadedly connected to the moving plate. A crack prevention monitoring mechanism is provided on the moving plate.

2. The reduction furnace anti-cracking rod of claim 1, wherein: The upper and lower ends of the movable plate are fixedly connected to auxiliary cylinders, which are slidably connected to studs.

3. The reduction furnace anti-cracking rod of claim 1, wherein: An auxiliary frame is fixedly connected to the right end of the movable plate, and multiple evenly distributed counterweights are provided on the inner wall of the auxiliary frame.

4. The reduction furnace anti-cracking rod of claim 1, wherein: The crack prevention monitoring mechanism includes a support ring. The support ring is fixedly sleeved on the outer side of the movable plate. The upper end of the support ring contacts an installation ring. An infrared temperature sensor is installed on the inner wall of the installation ring. A screw is fixedly connected to the upper end of the support ring. The screw is slidably connected to the installation ring. A washer is slidably sleeved on the outer side of the screw. The washer contacts the installation ring. A nut is threadedly connected to the outer side of the screw. The nut contacts the washer. A fixing ring is fixedly sleeved on the outer side of the nut. A fixing plate is welded to the upper end of the screw. A support spring is welded to the lower end of the fixing plate. The other end of the support spring is welded to the fixing ring.

5. The reduction furnace anti-cracking rod of claim 4, wherein: Four infrared temperature sensors are provided, and the four infrared temperature sensors are arranged in a ring array on the mounting ring.

6. The reduction furnace anti-cracking rod of claim 4, wherein: The gasket is circular in shape and is made of rubber.

7. The reduction furnace anti-cracking rod of claim 4, wherein: Multiple support springs are provided, and the multiple support springs are symmetrically distributed on the fixed plate.

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