Automatic refining equipment for industrial silicon

Abstract

The utility model belongs to the technical field of refining equipment, and discloses automatic industrial silicon refining equipment which comprises a first base and a second base, moving wheels are mounted at the bottom of the first base and the bottom of the second base, the first base is provided with an alignment groove, the second base is connected with a connecting block, and the connecting block is connected with the first base. Pin holes are formed in the alignment groove and the connecting block; a support is installed on the first base, two hooks are symmetrically installed on the support in a hinged mode, a furnace body is installed on the two hooks in a hung mode, an infrared thermometer is installed on the support, an air nozzle is installed at the bottom of the furnace body, a side hook is installed on the outer side of the furnace body, and a hanging ring is installed on the support. A hand-cranking wheel is rotationally mounted on the table top of the first base, and a rope is connected among the hand-cranking wheel, the hanging ring and the side hook; a center control box is installed on the second base, an air pipe and an oxygen pipe are installed in the center control box, and the output end of the air pipe and the output end of the oxygen pipe are both in butt joint with the air nozzle.

Description

Technical Field

[0001] The utility model belongs to the technical field of refining equipment, and in particular relates to automatic refining equipment for industrial silicon. Background Art

[0002] Industrial silicon refining is divided into chloride refining and oxidation refining. However, considering the equipment cost and environmental pollution and other related conditions, chloride refining has been eliminated. At present, oxidation refining is the method commonly used in the industry. Domestic and foreign industrial silicon manufacturers currently use manual control when using oxidation refining.

[0003] Manual refining mainly relies on experienced refining workers observing the flames and tumbling of the liquid silicon in the silicon bag. The refining operators manually adjust the flow of refining air and oxygen into the silicon liquid based on their production experience. Therefore, it requires experienced refining workers to operate, which means that the technical requirements are high and the labor costs are high.

[0004] With the rapid development of my country's industrial silicon industry and its downstream industries, the number of industrial silicon electric furnaces is increasing at an alarming rate. Many newly built domestic silicon plants are unable to hire a sufficient number of refining workers with qualified operating skills. In addition, manual refining is inefficient, the calcium and aluminum content in the product is high, and there are large deviations in the material usage of different operators during the refining process. In addition, the ventilation volume cannot be accurately controlled, which easily leads to the loss of refining gas and silicon water. Utility Model Content

[0005] In view of the problems raised by the above background technology, the purpose of the present invention is to provide an automatic refining equipment for industrial silicon.

[0006] In order to achieve the above technical objectives, the technical solutions adopted by this utility model are as follows:

[0007] An industrial silicon automatic refining device comprises a first base and a second base, wherein the first base and the second base are both provided with movable wheels at the bottom, the first base is provided with an alignment groove, and the second base is integrally connected to a connecting block located in the alignment groove, wherein the alignment groove and the connecting block are both provided with pin holes;

[0008] The first base is equipped with a bracket, the cross-section of the bracket is L-shaped, the bracket is symmetrically hinged with two hooks, the two hooks are mounted together with the furnace body, the bracket is equipped with an infrared thermometer, the bottom of the furnace body is equipped with a gas nozzle, the outside of the furnace body is equipped with a side hook, the bracket is equipped with a hanging ring, and a hand wheel is rotatably installed on the table of the first base, and a rope is connected between the hand wheel, the hanging ring and the side hook;

[0009] The second base is equipped with a central control box, in which an air pipe and an oxygen pipe are installed, and the output ends of the air pipe and the oxygen pipe are connected to the gas nozzle;

[0010] The air pipe is equipped with an electronically controlled compressed air flow meter, an electronically controlled compressed air pressure gauge and an electronically controlled compressed air valve;

[0011] An electrically controlled oxygen flow meter, an electrically controlled oxygen pressure gauge and an electrically controlled oxygen valve are installed on the oxygen pipe.

[0012] It is further defined that the second base is equipped with a pipe reel. With this design, the pipes connected from the air pipe and the oxygen pipe can be wound and reeled on the pipe reel to prevent excessively long pipes from affecting the production environment.

[0013] It is further defined that the moving wheel is a self-locking universal moving wheel. Such a design facilitates movement and quick start and stop.

[0014] It is further defined that a data acquisition module, a data processing module and a control module are installed in the central control box, the data acquisition module is connected to the infrared thermometer signal, the electronically controlled compressed air flow meter, the electronically controlled compressed air pressure gauge, the electronically controlled compressed air valve, the electronically controlled oxygen flow meter, the electronically controlled oxygen pressure gauge and the electronically controlled oxygen valve are controlled by the control module, and such a design realizes automated component valve control.

[0015] It is further defined that the opening size of the hook does not exceed one quarter of the entire hook. Such a design has a good anti-fall-out effect.

[0016] The beneficial effects of adopting the utility model are:

[0017] The structural design of the utility model can improve the intelligence of refining operation, enhance the stability of refining quality, and reduce the loss of refining gas and silicon water;

[0018] With the structural design of the utility model, the positions of the first base and the second base can be docked or separated according to actual conditions, thereby improving installation adaptability and allowing for greater space avoidance.

[0019] With the structural design of the utility model, the furnace body can be tilted by rotating the hand-cranked wheel, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention can be further described by way of non-limiting examples given in the accompanying drawings;

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of an industrial silicon automatic refining equipment of the utility model Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of an embodiment of an industrial silicon automatic refining equipment of the utility model Figure 2 ;

[0023] Figure 3 This is a schematic block diagram of the connection and installation of the air pipe and the oxygen pipe of an embodiment of the industrial silicon automatic refining equipment of the present utility model;

[0024] Figure 4 This is a schematic block diagram of data information transmission of an embodiment of an industrial silicon automatic refining equipment of the present utility model;

[0025] The main component symbols are described as follows:

[0026] First base 1; second base 2; moving wheel 3; alignment slot 4; connecting block 5; pin hole 6;

[0027] Bracket 101; hook 102; furnace body 103; infrared thermometer 104; gas nozzle 105; side hook 106; hanging ring 107; hand wheel 108;

[0028] Central control box 201; air pipe 202; oxygen pipe 203; hose reel 204; data acquisition module 205; data processing module 206; control module 207;

[0029] Electronically controlled compressed air flow meter 2021; Electronically controlled compressed air pressure gauge 2022; Electronically controlled compressed air valve 2023;

[0030] Electronically controlled oxygen flow meter 2031; electronically controlled oxygen pressure gauge 2032; electronically controlled oxygen valve 2033. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0032] like Figures 1 to 4 As shown, an industrial silicon automatic refining device of the present invention includes a first base 1 and a second base 2. The bottom of the first base 1 and the second base 2 are both installed with a moving wheel 3. The first base 1 is provided with an alignment groove 4. The second base 2 is integrally connected to a connecting block 5 located in the alignment groove 4. The alignment groove 4 and the connecting block 5 are both provided with a pin hole 6.

[0033] The first base 1 is equipped with a bracket 101, the cross-section of the bracket 101 is L-shaped, and the bracket 101 is symmetrically hinged with two hooks 102, and the two hooks 102 are mounted together with the furnace body 103. The bracket 101 is equipped with an infrared thermometer 104, and the bottom of the furnace body 103 is equipped with a gas nozzle 105. The outside of the furnace body 103 is equipped with a side hook 106. The bracket 101 is equipped with a hanging ring 107. A hand-cranked wheel 108 is rotatably mounted on the table of the first base 1. A rope is connected between the hand-cranked wheel 108, the hanging ring 107 and the side hook 106.

[0034] The second base 2 is installed with a central control box 201, and an air pipe 202 and an oxygen pipe 203 are installed in the central control box 201. The output ends of the air pipe 202 and the oxygen pipe 203 are connected to the gas nozzle 105.

[0035] The air pipe 202 is equipped with an electronically controlled compressed air flow meter 2021, an electronically controlled compressed air pressure gauge 2022 and an electronically controlled compressed air valve 2023;

[0036] An electrically controlled oxygen flow meter 2031 , an electrically controlled oxygen pressure gauge 2032 and an electrically controlled oxygen valve 2033 are installed on the oxygen pipe 203 .

[0037] In this embodiment, when using an industrial silicon automatic refining equipment, the first base 1 and the second base 2 can be docked for use according to the usage situation, or they can be used in a avoidance manner according to the space. The docking method is often used in situations where movement is required. After the docking is completed, the first base 1 or the second base 2 can be pushed to use both together. The avoidance method is often used when there is an interference problem during placement, and separate placement can better adapt.

[0038] To tilt the furnace body 103, one only needs to turn the hand wheel 108, cooperate with the rope hung on the hanging ring 107, and pull the side hook 106 upwards, so that the furnace body 103 can be rotated at the position of the hook 102 to achieve the purpose of tilting;

[0039] During operation, when the silicon water is discharged from the furnace and arrives at the refining area, the system extracts the result of the infrared thermometer 104 and automatically adjusts the valve opening of the electronically controlled compressed air pressure gauge 2022 and the electronically controlled compressed air valve 2023 according to the system refining logic and detects the flow rate. When the silicon water temperature is below 1530℃, the system automatically adjusts the valve opening of the electronically controlled oxygen pressure gauge 2032 and the electronically controlled oxygen valve 2033 to ensure that the oxygen flow rate is between 45-50m 3 / h, compressed air flow rate is 10-15m 3 When the silicon water temperature is between 1530-1560℃, the oxygen flow rate is controlled at 35-45m 3 / h, the compressed air flow rate is controlled at 15-25m 3 / h; when the silicon water temperature is greater than 1560℃, the oxygen flow rate is controlled at 30-35m 3 / h, the compressed air flow rate is controlled at 15-30m 3 / h;

[0040] Refining is complete when the silicon liquid in the bag is manually observed to have red sparks that fall to the ground and do not move; or when the silicon liquid rolls, a large amount of bean curd-like accumulation is observed at the edge of the bag and the silicon liquid is viscous. Refining is complete when an iron rod is quickly inserted into the silicon liquid and withdrawn. If it is smooth and the calcium spot coverage rate is 75%-85%, refining is complete.

[0041] After refining, measure the temperature of the silicon water in the bag again. After refining, the temperature should be controlled at 1460℃-1500℃. If the temperature exceeds 1500℃, add air to further cool it down. 5 minutes before casting, oxygen should be turned off and air should be turned on. The ventilation volume should be controlled at 10Nm 3 / h, make the silicone water in the bag roll slightly, and start casting after scum appears on the surface.

[0042] Preferably, the second base 2 is equipped with a pipe reel 204. With this design, the pipes connected from the air pipe 202 and the oxygen pipe 203 can be wound and reeled on the pipe reel 204 to prevent excessively long wire pipes from affecting the production environment. In fact, the wire pipe bundling method can also be considered according to specific circumstances.

[0043] Preferably, the moving wheel 3 is a self-locking universal moving wheel. Such a design facilitates movement and quick start and stop. In fact, the choice of the moving wheel 3 can also be considered according to specific circumstances.

[0044] Preferably, a data acquisition module 205, a data processing module 206 and a control module 207 are installed in the central control box 201. The data acquisition module 205 is connected to the signal of the infrared thermometer 104. The electronically controlled compressed air flow meter 2021, the electronically controlled compressed air pressure gauge 2022, the electronically controlled compressed air valve 2023, the electronically controlled oxygen flow meter 2031, the electronically controlled oxygen pressure gauge 2032 and the electronically controlled oxygen valve 2033 are controlled by the control module 207. Such a design realizes automated component valve control. In fact, the components in the central control box 201 can also be considered according to specific circumstances.

[0045] Preferably, the opening size of the hook 102 does not exceed one-quarter of the entire hook 102. This design has a good anti-fallout effect. In fact, the specifications and dimensions of the hook 102 can also be considered according to specific circumstances.

[0046] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed herein shall be covered by the claims of the present invention.

Claims

1. An industrial silicon automatic refining device, comprising a first base (1) and a second base (2), characterized in that: The bottoms of the first base (1) and the second base (2) are both equipped with moving wheels (3); the first base (1) is provided with an alignment groove (4); the second base (2) is integrally connected with a connecting block (5) located in the alignment groove (4); the alignment groove (4) and the connecting block (5) are both provided with pin holes (6); The first base (1) is provided with a bracket (101), the cross section of the bracket (101) is L-shaped, the bracket (101) is symmetrically hinged with two hooks (102), the two hooks (102) are hung with a furnace body (103), the bracket (101) is provided with an infrared thermometer (104), the bottom of the furnace body (103) is provided with a gas nozzle (105), the outer side of the furnace body (103) is provided with a side hook (106), the bracket (101) is provided with a hanging ring (107), a hand wheel (108) is rotatably provided on the table of the first base (1), and a rope is connected between the hand wheel (108), the hanging ring (107) and the side hook (106); The second base (2) is equipped with a central control box (201), an air pipe (202) and an oxygen pipe (203) are installed in the central control box (201), and the output ends of the air pipe (202) and the oxygen pipe (203) are connected to the air nozzle (105); The air pipe (202) is equipped with an electrically controlled compressed air flow meter (2021), an electrically controlled compressed air pressure gauge (222), and an electrically controlled compressed air valve (2023); An electrically controlled oxygen flow meter (2031), an electrically controlled oxygen pressure gauge (2032) and an electrically controlled oxygen valve (2033) are installed on the oxygen pipe (203).

2. The industrial silicon automatic refining equipment according to claim 1, characterized in that: The second base (2) is equipped with a pipe reel (204).

3. The industrial silicon automatic refining equipment according to claim 2, characterized in that: The moving wheel (3) is a self-locking universal moving wheel.

4. The industrial silicon automatic refining equipment according to claim 3, characterized in that: A data acquisition module (205), a data processing module (206) and a control module (207) are installed in the central control box (201); the data acquisition module (205) is connected to the infrared thermometer (104) by signal; the electrically controlled compressed air flow meter (2021), the electrically controlled compressed air pressure gauge (2022), the electrically controlled compressed air valve (2023), the electrically controlled oxygen flow meter (2031), the electrically controlled oxygen pressure gauge (2032) and the electrically controlled oxygen valve (2033) are controlled by the control module (207).

5. The industrial silicon automatic refining equipment according to claim 4, characterized in that: The opening size of the hook (102) does not exceed one quarter of the entire hook.

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