CN215556729U

CN215556729U - Automatic silicon square rod heating production line

Info

Publication number: CN215556729U
Application number: CN202122288931.4U
Authority: CN
Inventors: 张小飞; 侯贺; 王钢; 李东伟
Original assignee: Dalian Weikaite Technology Co ltd
Current assignee: Dalian Weikaite Technology Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-01-18
Anticipated expiration: 2031-09-22

Abstract

The utility model provides an automatic silicon square rod heating production line. The silicon square bar cooling device comprises a rack, wherein a power roller conveying device is arranged on the rack and consists of a plurality of power roller conveying units, each power roller conveying unit is positioned at different stations, a feeding station is arranged in front of the power roller conveying unit at the starting end, a discharging station is arranged behind the power roller conveying unit at the tail end, a heating section and a cooling section are sequentially arranged between the feeding station and the discharging station, the heating section is provided with a heating device for heating a silicon square bar, and the cooling section is provided with a temperature detection device for detecting the temperature of the silicon square bar and a cooling device for cooling the heated silicon square bar. The silicon square rod is conveyed by a power roller conveying device and is continuously and automatically heated by a microwave heating tunnel. The heating device has the advantages of high heating efficiency, energy conservation, reduction of labor intensity of workers and the like.

Description

Automatic silicon square rod heating production line

Technical Field

The utility model relates to the technical field of monocrystalline silicon preparation processes in photovoltaic and semiconductor industries, in particular to an automatic silicon square rod heating production line.

Background

In the photovoltaic and semiconductor industries, monocrystalline silicon is used in large quantities. At present, in the photovoltaic industry, a silicon square bar needs to be bonded to a resin plate before being sliced. In order to ensure the bonding quality, the temperature of the silicon square bar is raised to about 27 ℃ before the silicon square bar is glued. The conventional method at present is to manually send the silicon square rod to a constant temperature chamber for long-time storage, and then the silicon square rod is transferred to a gluing process after the whole silicon rod reaches the room temperature of the constant temperature chamber.

The defects of the existing silicon square rod heating method are as follows: the heating time of the silicon square rod is long, and the production efficiency is low. The heat loss of the thermostatic chamber is large and the energy consumption is high. The labor intensity of workers is high.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned technical problems, an automated silicon square bar heating line is provided. The technical means adopted by the utility model are as follows:

the utility model provides an automatic change silicon square bar heating assembly line, includes the frame, install power roller conveyor on the frame, power roller conveyor comprises a plurality of power roller conveying unit, and each power roller conveying unit is in different stations, is the material loading station before the power roller conveying unit of initiating terminal, and the power roller conveying unit of ending end is the unloading station afterwards, sets gradually heating section and cooling section between material loading station and the unloading station, the heating section is provided with the heating device who is used for heating the silicon square bar, the cooling section is provided with the temperature-detecting device who is used for detecting silicon square bar temperature and is used for the cooling device to the silicon square bar cooling after the heating.

Further, the power roller conveying unit comprises a group of 3 rollers or a group of 4 rollers, at least 1 tray is placed on each power roller conveying unit, and at least 1 silicon square rod is placed on each tray.

Furthermore, a tray return roller way is arranged in the middle of the rack, the feeding station and the discharging station are respectively provided with a power roller conveying unit and a tray return roller way which are used for connecting the starting end, and a power roller conveying unit lifting device which is used for connecting the power roller conveying unit at the tail end and the tray return roller way, and the tray reaching the discharging position of the silicon square rod heating wire can be sent back to the feeding position through the power roller conveying unit lifting device and the tray return roller way.

Furthermore, the power roller conveying unit is driven by a variable frequency motor and drives each group of rollers to rotate through chain transmission; the rollers of the tray return roller way are driven by a variable frequency motor and driven to rotate by chain transmission.

Further, the heating device comprises a microwave heating system, the microwave heating system comprises a tunnel type microwave heating chamber, the tunnel type microwave heating chamber is mounted on the machine frame, and a plurality of microwave generators used for heating the silicon rod are mounted on the top of the tunnel type microwave heating chamber.

Furthermore, a feeding buffer area and a discharging buffer area are arranged at the inlet and the outlet of the microwave heating chamber, protective gates are arranged at the front and the rear of the feeding buffer area and the rear of the discharging buffer area, and the gates are alternately opened and closed in an up-and-down motion mode and used for preventing microwave leakage.

Further, the cooling device is an air cooling device, and specifically comprises a fan.

The silicon square rod is conveyed by a power roller conveying device and is continuously and automatically heated by a microwave heating tunnel. The heating device has the advantages of high heating efficiency, energy conservation, reduction of labor intensity of workers and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of the present invention.

FIG. 2 is a top view of the present invention.

In the figure: 1. a powered roller conveyor; 2. a frame; 3. a tunnel microwave heating chamber; 4. a variable frequency motor; 5. a silicon rod tray; 6. a silicon square bar; 7. a feeding station; 8. a blanking station; 9. the tray returns to the roller way; 10. a microwave generator; 11. a protective gate; 12. a cooling section; 13. an infrared temperature measuring sensor; 14. a fan.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, the embodiment discloses an automatic silicon square rod heating assembly line, which comprises a frame 2, a power roller conveying device 1 is installed on the frame, the power roller conveying device is composed of a plurality of power roller conveying units, each power roller conveying unit is located at different stations, a feeding station 7 is arranged before the power roller conveying unit at the starting end, a discharging station 8 is arranged after the power roller conveying unit at the tail end, a heating section and a cooling section 12 are sequentially arranged between the feeding station and the discharging station, the heating section is provided with a heating device for heating a silicon square rod, and the cooling section is provided with a temperature detection device for detecting the temperature of the silicon square rod and a cooling device for cooling the heated silicon square rod.

In a preferred embodiment, the frame is made of profile steel by welding, and is coated with antirust paint.

The power roller conveying unit comprises a group of 3 or 4 rollers, at least 1 silicon rod tray 5 is placed on each power roller conveying unit, and at least 1 silicon square rod 6 is placed on each tray. The frame of the power roller conveying unit is made of steel plates through welding. The rollers are supported for rotation by bearings. The roller shaft is a steel shaft and is sleeved with PTFE. The shaft ends of the rollers are provided with chain wheels, and the rollers are driven by a servo motor to rotate through chain transmission.

A tray return roller way 9 is arranged in the middle of the frame, and the feeding station and the discharging station are both provided with a power roller conveying unit and a tray return roller way which are used for connecting the starting end and a power roller conveying unit lifting device which is used for connecting the power roller conveying unit and the tray return roller way of the ending end. The power roller conveying unit lifting device and the tray return roller way can return the tray reaching the blanking position of the silicon square rod heating wire to the feeding position.

The power roller conveying unit is driven by a variable frequency motor 4 and drives each group of rollers to rotate through chain transmission; the rollers of the tray return roller way are driven by a servo motor and driven to rotate by chain transmission.

The heating device comprises a microwave heating system, the microwave heating system comprises a tunnel type microwave heating chamber 3, the tunnel type microwave heating chamber is installed on the rack, and a plurality of microwave generators 10 used for heating the silicon rods are installed on the top of the tunnel type microwave heating chamber. The microwave generator adopts a water-cooled magnetron, and a filter device is arranged on a cooling water pipeline of the microwave generator, so that blockage is prevented, and the long-term stable operation of the magnetron is ensured. In this embodiment, the microwave heating chamber is arranged with 8 stations, 4 stations for the front heating zone and 4 stations for the rear heating zone. The outer wall of the whole tunnel is made of 304 stainless steel plates through welding, and PTFE plates are lined on the inner wall of the whole tunnel.

The inlet and the outlet of the microwave heating chamber are provided with a feeding buffer area and a discharging buffer area, the front and the back of the feeding buffer area and the back of the discharging buffer area are both provided with protective gates 11, and the gates are alternately opened and closed in an up-and-down motion mode and used for preventing microwave leakage.

The discharging end of the discharging buffer area is connected with the silicon rod temperature monitoring area. The silicon rod entering the silicon rod temperature monitoring area is subjected to temperature measurement by the infrared temperature measuring sensor 13, the silicon rod with the temperature measurement meeting the set temperature requirement is directly conveyed to a blanking station, and blanking is completed through a manipulator. The silicon rods with the temperature higher than the set temperature are cooled to the set temperature by the fan 14 in the temperature monitoring area and then conveyed to the blanking station. Specifically, the upper part of the silicon rod temperature monitoring area tunnel is provided with an air blowing port for blowing air to cool the high-temperature silicon rod. The blowing pipe is connected to a blowing fan. And 2 air blowing fans are arranged on the base outside the silicon rod temperature monitoring area tunnel. After the detected low-temperature silicon rods are conveyed to the blanking station, the low-temperature silicon rods are conveyed to the low-temperature silicon rod storage area through the lifting device of the roller conveying unit, and the silicon rods are manually returned to the initial station.

The specific application method of this example is as follows: when the silicon rod heating wire works, the silicon square rod is placed on the tray. The tray is driven by a roller rotated by the power roller way to pass through the microwave heating tunnel for heating, and is sent to a blanking position after temperature measurement and monitoring. Wherein, the infrared temperature sensor measures temperature, and the silicon rod meeting the set temperature requirement is directly conveyed to a blanking station, and blanking is completed through a manipulator. The silicon rod with the temperature higher than the set temperature is cooled to the set temperature by the fan in the temperature monitoring area and then is conveyed to the blanking station. After the detected low-temperature silicon rods are conveyed to the blanking station, the low-temperature silicon rods are conveyed to the low-temperature silicon rod storage area through the lifting device of the roller conveying unit, and the silicon rods are manually returned to the initial feeding station again. Meanwhile, the empty tray is returned to the feeding position by the power roller conveying unit lifting device and the tray returning power roller way.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides an automatic change silicon square bar heating assembly line, a serial communication port, which comprises a frame, install power roller conveyor on the frame, power roller conveyor comprises a plurality of power roller conveying unit, and each power roller conveying unit is in different stations, is the material loading station before the power roller conveying unit of initiating terminal, and the power roller conveying unit of ending end is the unloading station afterwards, sets gradually heating section and cooling section between material loading station and the unloading station, the heating section is provided with the heating device who is used for heating silicon square bar, the cooling section is provided with the temperature-detecting device who is used for detecting silicon square bar temperature and is used for the cooling device to the silicon square bar cooling after the heating.

2. The automated silicon square bar heating line of claim 1, wherein the powered roller conveyor units comprise 3 or 4 sets of rollers, each powered roller conveyor unit having at least 1 tray on which at least 1 silicon square bar is placed.

3. The automatic silicon square rod heating production line according to claim 2, wherein a tray return roller way is arranged in the middle of the frame, the feeding station and the discharging station are respectively provided with a power roller conveying unit and a tray return roller way for connecting the starting end and a power roller conveying unit lifting device for connecting the power roller conveying unit and the tray return roller way at the tail end, and the tray reaching the discharging position of the silicon square rod heating line can be returned to the feeding position through the power roller conveying unit lifting device and the tray return roller way.

4. The automated silicon square bar heating line of claim 3, wherein the power roller conveying unit is driven by a variable frequency motor, and each set of rollers is driven to rotate by a chain transmission; the rollers of the tray return roller way are driven by a variable frequency motor and driven to rotate by chain transmission.

5. The automated silicon square bar heating line of claim 1, wherein the heating device comprises a microwave heating system comprising a tunnel microwave heating chamber mounted on a frame, the tunnel microwave heating chamber surmounted by a plurality of microwave generators for heating silicon bars.

6. The automated silicon square bar heating line of claim 5, wherein a feeding buffer area and a discharging buffer area are provided at an inlet and an outlet of the microwave heating chamber, and protective gates are installed at the front and the rear of the feeding buffer area and the discharging buffer area, and the gates are alternately opened and closed by moving up and down to prevent microwave leakage.

7. The automated silicon square bar heating line of claim 1, wherein the cooling device is an air cooling device, in particular comprising a fan.