Metallic silicon production smelting furnace

Abstract

The utility model discloses a metal silicon production smelting furnace, and particularly relates to the technical field of smelting furnaces, the metal silicon production smelting furnace comprises a smelting furnace body, a support frame is arranged on the surface of the smelting furnace body, a sealing cover is hinged to the top of the smelting furnace body, and a processing mechanism is arranged on one side of the smelting furnace body. The treatment mechanism comprises a gas inlet pipe arranged on one side of the smelting furnace body, a filter box is arranged on one side of the gas inlet pipe, a filter plate is arranged in the filter box, a plurality of adsorption balls are arranged on the upper surface of the filter plate, a connecting pipe is arranged at the bottom of the filter box, and a filter cartridge is arranged at one end of the connecting pipe. Wherein a first filter layer is arranged in the filter cartridge. According to the waste gas treatment device, waste gas can be collected, treated, discharged and controlled, and harmful substances in the waste gas can be effectively removed, so that the pollution to the environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting furnaces, and more specifically, the utility model relates to a smelting furnace for producing metallurgical silicon. Background Art

[0002] Metallurgical silicon, also known as industrial silicon, contains impurities such as iron, aluminum, and calcium. It needs to be refined and purified to reduce the impurities. After a series of processes of purification, metallurgical silicon is converted into polysilicon and monocrystalline silicon for use in the photovoltaic industry and the electronics industry. In the preparation process of metallurgical silicon, purification is an essential step, and the smelting furnace is one of the indispensable equipment in the purification process of metallurgical silicon.

[0003] In the existing smelting furnace, there is a problem of inconvenient feeding during the smelting process of metallurgical silicon, and the graphite crucible does not have the function of stirring metallurgical silicon, resulting in uneven heating of metallurgical silicon and reducing the productivity and thermal efficiency of the smelting furnace.

[0004] After retrieval, a Chinese patent with the authorization announcement number CN219735959U discloses a smelting furnace for producing metallurgical silicon. Through three groups of distributed heating mechanisms, the effect of making the heat inside the entire crucible body uniform is achieved first. When the heat is conducted to the inside of the crucible body through the heat-receiving interlayer, since the overall side profile of the heat-receiving interlayer is set in a "Z" shape and the bottom expands from bottom to top, the heat can effectively and evenly fill the entire smelting chamber, maintaining stable and uniform heating of the internal metallurgical silicon. Moreover, the rotation of the first toothed disc drives the overall rotation of the first linkage tooth, and the rotation of the first toothed disc simultaneously drives the rotation of the stirring shaft and the first stirring fan at the bottom, while the rotation of the second toothed disc drives the reverse rotation of the sleeve and the second stirring fan.

[0005] However, in actual use, since harmful gases, dust, and other pollutants may be generated during the smelting process, and this structure is difficult to handle them, it is easy to cause leakage and external emission, which will have a serious impact on the environment. Summary of the Utility Model

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a smelting furnace for producing metallurgical silicon to solve the problems raised in the above background art.

[0007] To achieve the above object, the utility model provides the following technical solutions:

[0008] A smelting furnace for producing metallurgical silicon includes a smelting furnace body, a support frame is arranged on the surface of the smelting furnace body, a sealing cover is hinged to the top of the smelting furnace body, and a treatment mechanism is arranged on one side of the smelting furnace body;

[0009] The processing mechanism includes an air inlet pipe arranged on one side of the smelting furnace body, a filter box is arranged on one side of the air inlet pipe, a filter plate is arranged inside the filter box, a plurality of adsorption balls are arranged on the upper surface of the filter plate, a connecting pipe is arranged at the bottom of the filter box, a filter cartridge is arranged at one end of the connecting pipe, a first filter layer is arranged inside the filter cartridge, a second filter layer is arranged at the bottom of the first filter layer, an air outlet pipe is arranged at the bottom of the filter cartridge, and an air pump is arranged on one side of the air outlet pipe.

[0010] By adopting the above technical solution: in order to collect, treat and control the emission of exhaust gas, through this series of treatments, harmful substances in the exhaust gas are effectively removed or reduced, thereby reducing pollution to the environment.

[0011] As a further description of the above technical solution: a stirring mechanism is arranged inside the smelting furnace body, and the stirring mechanism includes a motor installed on the upper surface of the smelting furnace body, the output end of the motor is coaxially connected with a rotating shaft, and the rotating shaft is sleeved with stirring blades, and the surface of the rotating shaft is provided with a plurality of fan-shaped plates, and the surfaces of the plurality of fan-shaped plates are each provided with a plurality of stirring rods, and the bottom of the rotating shaft is rotatably connected with a support bar.

[0012] By adopting the above technical solution: in order to optimize the stirring effect and ensure uniform heat distribution during the smelting process, the smelting efficiency and product quality are effectively improved.

[0013] As a further description of the above technical solution: a U-shaped frame is provided on one side of the smelting furnace body, a plurality of springs are provided inside the U-shaped frame, a fixed plate is provided on one side of the plurality of springs, a fixed hook is provided on one side of the fixed plate, the top of the fixed hook is fixedly connected to the surface of the sealing cover, a feed pipe is provided on the top of the smelting furnace body, a discharge pipe is provided on the bottom of the smelting furnace body, and a plurality of electric heating wires are provided on the surface of the smelting furnace body.

[0014] By adopting the above technical solution: in order to improve the overall sealing and safety, and the operation is convenient and quick.

[0015] Technical effects and advantages of the utility model:

[0016] 1. By setting up a treatment mechanism, compared with the prior art, the exhaust gas starts the air pump to drive the exhaust gas through the air inlet pipe into the interior of the filter box, and then passes through the filter plate and adsorption ball inside the filter box for preliminary filtration, thereby removing dust particles in the exhaust gas, and then passes through the first filter layer inside the filter cartridge to remove sulfide-containing gas in the flue gas, and then passes through the second filter layer to remove organic pollutants in the exhaust gas through the adsorption performance of activated carbon, and finally is discharged through the exhaust pipe, thereby improving the use effect and reducing pollution to the environment;

[0017] 2. By setting up a stirring mechanism, compared with the prior art, starting the motor drives the rotating shaft to rotate, the rotating shaft drives the stirring blades to rotate, the stirring blades drive the sector plate and the stirring rods to rotate in the furnace. The rotation of the sector plate and the stirring rods lifts the silicon melt from the bottom of the furnace to the top of the furnace. At the same time, the stirring blades break up and mix the silicon melt, achieving uniform stirring and uniform heating, and also improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the working state structure of the present invention.

[0020] Figure 3 It is a schematic diagram of the processing mechanism structure of the present invention.

[0021] Figure 4 It is a schematic diagram of the stirring mechanism structure of the present invention.

[0022] Figure 5 It is a schematic diagram of the overall sectional structure of the present invention.

[0023] The reference numerals are: 1, melting furnace body; 2, support frame; 3, sealing cover; 4, intake pipe; 5, filter box; 6, filter plate; 7, adsorption ball; 8, filter cylinder; 9, first filter layer; 10, second filter layer; 11, outlet pipe; 12, air pump; 13, motor; 14, rotating shaft; 15, stirring blade; 16, sector plate; 17, stirring rod; 18, support bar; 19, U-shaped frame; 20, spring; 21, fixing plate; 22, fixing hook; 23, feeding pipe; 24, discharging pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] This application embodiment discloses a Figures 1-5 shown metal silicon production melting furnace, including a melting furnace body 1, a support frame 2 is arranged on the surface of the melting furnace body 1, a sealing cover 3 is hinged to the top of the melting furnace body 1, and a processing mechanism is arranged on one side of the melting furnace body 1;

[0026] The processing mechanism includes an air inlet pipe 4 arranged at one side of the smelting furnace body 1, a filter box 5 is arranged at one side of the air inlet pipe 4, a filter plate 6 is arranged inside the filter box 5, a plurality of adsorption balls 7 are arranged on the upper surface of the filter plate 6, a connecting pipe is arranged at the bottom of the filter box 5, a filter cartridge 8 is arranged at one end of the connecting pipe, a first filter layer 9 is arranged inside the filter cartridge 8, a second filter layer 10 is arranged at the bottom of the first filter layer 9, an air outlet pipe 11 is arranged at the bottom of the filter cartridge 8, an air pump 12 is arranged at one side of the air outlet pipe 11, and by starting the air pump 12, the exhaust gas is driven to enter through the air inlet pipe 4. It enters the interior of the filter box 5, and then undergoes preliminary filtration through the filter plate 6 and adsorption balls 7 inside the filter box 5 to remove dust particles in the exhaust gas. Then, it enters the temporal part of the filter cartridge 8 through the connecting pipe, and then passes through the first filter layer 9 inside the filter cartridge 8. The first filter layer 9 has an adsorbent inside to remove sulfide-containing gas in the flue gas. Then, it passes through the second filter layer 10. The second filter layer 10 has activated carbon inside. The organic pollutants in the exhaust gas are removed by the adsorption performance of the activated carbon. Finally, it is discharged through the exhaust pipe 11, thereby improving the use effect.

[0027] Reference Figures 2-4 As shown, a stirring mechanism is provided inside the smelting furnace body 1, and the stirring mechanism includes a motor 13 installed on the upper surface of the smelting furnace body 1, and the output end of the motor 13 is coaxially connected with a rotating shaft 14, and a stirring blade 15 is sleeved on the rotating shaft 14. A plurality of fan-shaped plates 16 are provided on the surface of the rotating shaft 14, and a plurality of stirring rods 17 are provided on the surfaces of the plurality of fan-shaped plates 16. A support bar 18 is rotatably connected to the bottom of the rotating shaft 14. The motor 13 is started to drive the rotating shaft 14 to rotate, and the rotating shaft 14 drives the stirring blade 15 to rotate. The stirring blade 15 drives the fan-shaped plates 16 and the stirring rod 17 to rotate in the furnace. The rotational movement of the fan-shaped plates 16 and the stirring rod 17 lifts the silicon melt from the bottom of the furnace to the top of the furnace, and at the same time, the stirring blade 15 breaks up and mixes the silicon melt to achieve uniform stirring and uniform heating.

[0028] Reference Figures 4-5As shown, a U-shaped frame 19 is provided on one side of the smelting furnace body 1. A plurality of springs 20 are arranged inside the U-shaped frame 19. A fixing plate 21 is arranged on one side of the plurality of springs 20. A fixing hook 22 is arranged on one side of the fixing plate 21. The top of the fixing hook 22 is fixedly connected to the surface of the sealing cover 3. A feeding pipe 23 is arranged on the top of the smelting furnace body 1. A discharging pipe 24 is arranged on the bottom of the smelting furnace body 1. A plurality of electric heating wires are arranged on the surface of the smelting furnace body 1, so as to drive the sealing cover 3 to move downward. Then, the fixing plate 21 is pulled to the side away from the smelting furnace body 1, thereby driving the fixing plate 21 to move, squeezing the springs 20 at the rear side, deforming the springs 20 by extrusion. Then, the fixing hook 22 is inserted downward into the U-shaped frame 19. Then, the fixing plate 21 is released, so that the springs are no longer stressed and directly reset, driving the fixing plate 21 to move toward the side close to the fixing hook 22, thereby performing extrusion fixation to ensure stability.

[0029] The working principle of the present utility model:

[0030] The present utility model is a metal silicon production smelting furnace. When the device is in use, the metal silicon is poured into the smelting furnace body 1 through the feeding pipe 23, and then the sealing cover 3 is closed downward, thereby driving the sealing cover 3 to move downward. Then, the fixing plate 21 is pulled to the side away from the smelting furnace body 1, thereby driving the fixing plate 21 to move, squeezing the springs 20 at the rear side, deforming the springs 20 by extrusion. Then, the fixing hook 22 is inserted downward into the U-shaped frame 19. Then, the fixing plate 21 is released, so that the springs are no longer stressed and directly reset, driving the fixing plate 21 to move toward the side close to the fixing hook 22, thereby performing extrusion fixation to ensure stability;

[0031] Then, heating is carried out through the electric heating wires. The heat heats the metal silicon inside the smelting furnace body 1. Then, the motor 13 is started to drive the rotating shaft 14 to rotate. The rotating shaft 14 drives the stirring blades 15 to rotate. The stirring blades 15 drive the sector plates 16 and the stirring rods 17 to rotate in the furnace. The silicon melt is lifted from the furnace bottom to the furnace top through the rotational movement of the sector plates 16 and the stirring rods 17. At the same time, the stirring blades 15 disperse and mix the silicon melt to achieve uniform stirring and uniform heating;

[0032] Next, the waste gas from the smelting process passes through the starting air pump 12, driving the waste gas to enter the interior of the filter box 5 through the intake pipe 4, and then is preliminarily filtered through the filter plate 6 and the adsorption balls 7 inside the filter box 5, thereby removing the dust particles in the waste gas. Then, it enters the temporal part of the filter cylinder 8 through the connecting pipe, and then passes through the first filter layer 9 inside the filter cylinder 8. An adsorbent is provided inside the first filter layer 9 to remove the sulfur-containing gas in the flue gas. Then, it passes through the second filter layer 10. Activated carbon is provided inside the second filter layer 10, and the organic pollutants in the waste gas are removed through the adsorption performance of the activated carbon. Finally, it is discharged through the outlet pipe 11, thereby improving the use effect.

[0033] The above are all the preferred embodiments of this application. The protection scope of this application is not limited hereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A metal silicon production smelting furnace, comprising a smelting furnace body (1), characterized in that: A support frame (2) is provided on the surface of the smelting furnace body (1), a sealing cover (3) is hingedly connected to the top of the smelting furnace body (1), and a processing mechanism is provided on one side of the smelting furnace body (1); The processing mechanism comprises an air inlet pipe (4) arranged on one side of the smelting furnace body (1), a filter box (5) is arranged on one side of the air inlet pipe (4), a filter plate (6) is arranged inside the filter box (5), a plurality of adsorption balls (7) are arranged on the upper surface of the filter plate (6), a connecting pipe is arranged at the bottom of the filter box (5), a filter cartridge (8) is arranged at one end of the connecting pipe, a first filter layer (9) is arranged inside the filter cartridge (8), a second filter layer (10) is arranged at the bottom of the first filter layer (9), an air outlet pipe (11) is arranged at the bottom of the filter cartridge (8), and an air pump (12) is arranged on one side of the air outlet pipe (11).

2. The metallurgical silicon production smelting furnace according to claim 1, characterized in that: A stirring mechanism is arranged inside the smelting furnace body (1), and the stirring mechanism comprises a motor (13) mounted on the upper surface of the smelting furnace body (1), the output end of the motor (13) is coaxially connected to a rotating shaft (14), and a stirring blade (15) is sleeved on the rotating shaft (14).

3. The metal silicon production smelting furnace according to claim 2, characterized in that: The surface of the rotating shaft (14) is provided with a plurality of fan-shaped plates (16), and the surfaces of the plurality of fan-shaped plates (16) are each provided with a plurality of stirring rods (17). The bottom of the rotating shaft (14) is rotatably connected with a support bar (18).

4. The metal silicon production smelting furnace according to claim 1, characterized in that: A U-shaped frame (19) is provided on one side of the smelting furnace body (1), a plurality of springs (20) are provided inside the U-shaped frame (19), and a fixing plate (21) is provided on one side of the plurality of springs (20).

5. The metal silicon production smelting furnace according to claim 4, characterized in that: A fixing hook (22) is provided on one side of the fixing plate (21), and the top of the fixing hook (22) is fixedly connected to the surface of the sealing cover (3).

6. The metal silicon production smelting furnace according to claim 1, characterized in that: A material inlet pipe (23) is arranged at the top of the smelting furnace body (1), a material outlet pipe (24) is arranged at the bottom of the smelting furnace body (1), and a plurality of electric heating wires are arranged on the surface of the smelting furnace body (1).

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