Submerged arc furnace smoke purification device for low-carbon silicon-manganese alloy production

Abstract

The utility model belongs to the technical field of low-carbon silicomanganese alloy production, and discloses a submerged arc furnace smoke purification device for low-carbon silicomanganese alloy production, which comprises a purification box and a treatment box, the purification box is in threaded connection with a box cover, the box cover is rotatably connected with a rotating rod, the rotating rod is provided with a flowing channel, the rotating rod is connected with a spray head, and the rotating rod is rotatably connected with a connector. The box cover is connected with a servo motor, an output shaft of the servo motor and the rotating rod are connected with transmission gears respectively, the two transmission gears are meshed with each other, the purification box is connected with an air inlet pipe, an air outlet pipe and a liquid discharge pipe, and the air outlet pipe is connected with the treatment box; the purification box is connected with a detection device which is used for detecting the sealing performance of the purification box; according to the technical scheme, a treatment agent can be comprehensively sprayed in the treatment box, so that treatment liquid can be in full contact with smoke dust, and the treatment effect and efficiency are greatly improved; and the treatment box is also arranged at the gas outlet pipe, so that the purified gas can be further treated and purified through the reaction liquid, and the treatment effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of low-carbon silicon-manganese alloy production technology, and in particular to a dust purification device for a submerged arc furnace used in the production of low-carbon silicon-manganese alloy. Background Technology

[0002] Silicon-manganese alloy is produced by simultaneously reducing manganese oxide and silicon dioxide in manganese ore (including rich manganese slag) and silica in an electric arc furnace using carbon. The production of silicon-manganese alloy takes place in an electric arc furnace, using carbonaceous reducing agents, manganese ore, rich manganese slag, sintered manganese ore, roasted manganese ore and silica as raw materials, and lime, dolomite, fluorite and other fluxes in a continuous process in an electric furnace. During the smelting process of low-carbon silicon-manganese alloy in the electric arc furnace, a large amount of smoke and dust is generated. This smoke and dust needs to be purified by a purification device.

[0003] In the current purification devices, the dust is generally introduced into the treatment chamber and then a reaction liquid is sprayed into the device to humidify the dust and achieve the purpose of purification. However, the nozzles of the purification devices currently in use are fixed, which in turn leads to fixed spray angles and other parameters. This often results in the dust not being able to fully contact the reaction liquid, thus causing the dust removal effect of the purification device to be poor and its design to be impractical. Utility Model Content

[0004] The present invention aims to provide a dust purification device for a submerged arc furnace used in the production of low-carbon silicon-manganese alloys, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A dust purification device for a submerged arc furnace used in the production of low-carbon silicon-manganese alloy includes a purification chamber and a treatment chamber. The purification chamber is threadedly connected to a cover, and the cover is rotatably connected to a rotating rod. The rotating rod has a flow channel and is connected to a nozzle. The rotating rod is also rotatably connected to a connector. The cover is connected to a servo motor, and the output shaft of the servo motor and the rotating rod are respectively connected to transmission gears. The two sets of transmission gears mesh with each other. The purification chamber is connected to an air inlet pipe, an air outlet pipe, and a drain pipe. The air outlet pipe is connected to the treatment chamber. The purification chamber is also connected to a detection device for detecting the sealing performance of the purification chamber.

[0007] Preferably, the detection device includes a U-shaped tube connected to a purification box, an air pump connected to the box cover, a detection tube connected to the air pump, and the detection tube connected to the box cover.

[0008] Preferably, the lid is connected to a scraper ring, which abuts against the inner wall of the purification chamber.

[0009] Preferably, the outer wall of the U-shaped tube is provided with a marking line.

[0010] Preferably, the air inlet pipe, air outlet pipe, liquid drain pipe, detection pipe and U-shaped pipe are each connected to a control switch.

[0011] The beneficial effects of this technical solution compared to existing technologies are as follows:

[0012] (1) This technical solution uses a servo motor to drive the rotating rod to rotate, which in turn drives the nozzle to rotate, thereby adjusting the spraying area so that the treatment agent can be fully sprayed inside the treatment box. At the same time, it can agitate the dust so that the treatment liquid can fully contact the dust, greatly improving the treatment effect and efficiency. A treatment box is also set at the gas outlet, which can further treat and purify the purified gas through the reaction liquid to improve the treatment effect. The treatment box can also prevent gas from escaping. The overall structure is simple and easy to use. The rotating rod and other parts are connected to the box cover. The box cover can be removed later to take out the rotating rod and other parts, which is convenient for individual inspection and cleaning.

[0013] (2) This technical solution is equipped with a detection device that can detect the airtightness of the purification box, ensuring that the device can be disassembled without gas leakage, thus improving the stability of use. The structure is simple and can be understood by observing the liquid level change in the U-shaped tube. The marking line makes it easy for users to quickly identify whether the purification box is sealed. The scraper ring can scrape off the impurities attached to the inner wall of the purification box, which is convenient for subsequent cleaning and use. Attached Figure Description

[0014] Figure 1 This is a frontal sectional view of the present invention;

[0015] Figure 2 A top sectional view of the scraper ring provided by this utility model;

[0016] Attached reference numerals: 1. Purification box; 2. Liquid outlet pipe; 3. Rotating rod; 4. Scraper ring; 5. U-shaped pipe; 6. Marking line; 7. Nozzle; 8. Flow channel; 9. Air inlet pipe; 10. Detection pipe; 11. Box cover; 12. Air pump; 13. Connector; 14. Transmission gear; 15. Servo motor; 16. Processing box; 17. Air outlet pipe; 18. Control switch. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0018] like Figure 1 and Figure 2The device shown is a dust purification device for a submerged arc furnace used in the production of low-carbon silicon-manganese alloys. It includes a purification chamber 1 and a treatment chamber 16. The purification chamber 1 is threadedly connected to a cover 11, which is rotatably connected to a rotating rod 3. The rotating rod 3 has a flow channel 8 and is connected to nozzles 7, which communicate with the flow channel 8. Several sets of nozzles 7 are provided. The rotating rod 3 is rotatably connected to a connector 13, through which an external treatment liquid source and an input pipe can be connected. An external water pump delivers the treatment liquid from the input pipe into the flow channel 8. The cover 11 is connected to a servo motor 15. The output shaft of the servo motor 15 and the rotating rod 3 are respectively connected to the transmission gears 14. The two sets of transmission gears 14 mesh with each other. The purification box 1 is connected to the air inlet pipe 9, the air outlet pipe 17 and the drain pipe. The air outlet pipe 17 is connected to the treatment box 16. The lower end of the air outlet pipe 17 is located at the bottom of the treatment box 16. The purification box 1 is connected to a detection device. The detection device is used to detect the sealing performance of the purification box 1. The detection device includes a U-shaped tube 5, which is connected to the purification box 1. The box cover 11 is connected to the air pump 12, which is connected to the detection tube 10. The detection tube 10 is connected to the box cover 11.

[0019] The cover 11 is connected to a scraper ring 4, which abuts against the inner wall of the purification chamber 1. The outer wall of the U-shaped tube 5 is marked with a marking line 6. The air inlet pipe 9, air outlet pipe 17, liquid drain pipe, detection pipe 10 and U-shaped tube 5 are each connected to a control switch 18.

[0020] The specific implementation process is as follows:

[0021] During use, add treatment fluid to the treatment tank 16 until the fluid level covers the bottom of the outlet pipe 17. Connect the tank cover 11 to the purification tank 1, and connect the external input pipe to the flow channel 8 via the connector 13. Then, add an appropriate amount of water to the U-shaped tube 5. Close the control switches 18 of the inlet pipe 9, outlet pipe 17, and outlet pipe 2. Open the control switches 18 of the U-shaped tube 5 and the detection tube 10 to test the airtightness of the purification tank 1. Since both sides of the U-shaped tube 5 are marked with atmospheric pressure, the liquid levels on both sides of the U-shaped tube 5 will be level. Then, introduce air into the purification tank 1 through the air pump 12. If the purification tank 1 is sealed, the pressure inside the purification tank 1 will increase. Since the pressure on the right side of the U-shaped tube 5 is greater, the liquid level inside the U-shaped tube 5 will be higher on the left and lower on the right. This can be clearly observed through the marking line 6. If the liquid levels on the left and right sides of the U-shaped tube 5 change accordingly, it indicates that the purification tank 1 is sealed. If there is no change in the liquid levels on the left and right sides of the U-shaped tube 5, it indicates that the purification tank 1 is sealed. There is an air leak in chamber 1. After the test is completed, turn off the control switch 18 of U-shaped tube 5 and detection tube 10, and turn on the control switch 18 of air inlet pipe 9 and air outlet pipe 17. The dust is discharged into the purification chamber 1 through air inlet pipe 9. The reaction liquid is input into the flow channel 8 through an external source and then sprayed out from nozzle 7. Start servo motor 15. Through transmission gear 14, servo motor 15 can drive rotating rod 3 and nozzle 7 to rotate, so that the reaction liquid can fully react with the dust. The treated dust is discharged to the bottom of the treatment liquid along the air outlet pipe 17, and then discharged from the surface of the treatment liquid after reacting with the treatment liquid. The treated reaction liquid falls to the bottom of purification chamber 1. After the treatment is completed, turn on the control switch 18 of liquid outlet pipe 2 to discharge the used reaction liquid. Afterwards, the chamber cover 11 can be unscrewed and then the chamber cover 11 can be taken out upwards. When the chamber cover 11 is taken out upwards, the scraper ring 4 is pulled upwards to scrape off the impurities on the inner wall of purification chamber 1, which facilitates the subsequent cleaning of rotating rod 3 and purification chamber 1.

[0022] This technical solution uses a servo motor 15 to drive the rotating rod 3, which in turn drives the nozzle 7 to rotate, thereby adjusting the spraying area. This ensures that the treatment agent is fully sprayed inside the treatment tank 16, while also agitating the dust, allowing the treatment liquid to fully contact the dust and greatly improving the treatment effect and efficiency. A treatment tank 16 is also installed at the outlet pipe 17, where the purified gas can be further treated and purified by the reaction liquid, improving the treatment effect. The treatment tank 16 also prevents gas escape. The overall structure is simple and easy to use. The rotating rod 3 is connected to the tank cover 11, which can be removed later to take out the rotating rod 3 for individual inspection and cleaning. A detection device is included to check the sealing of the purification tank 1, ensuring that the device can be disassembled without gas leakage, improving operational stability. This can be achieved by observing the liquid level change in the U-shaped tube 5. The structure is simple. The marking line 6 allows users to quickly identify whether the purification tank 1 is sealed. The scraper ring 4 can scrape off impurities adhering to the inner wall of the purification tank 1, facilitating subsequent cleaning.

[0023] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model 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 dust purification device for a submerged arc furnace used in the production of low-carbon silicon-manganese alloys, characterized in that: The system includes a purification chamber (1) and a treatment chamber (16). The purification chamber (1) is threadedly connected to a cover (11). The cover (11) is rotatably connected to a rotating rod (3). The rotating rod (3) has a flow channel (8). The rotating rod (3) is connected to a nozzle (7). The rotating rod (3) is rotatably connected to a connector (13). The cover (11) is connected to a servo motor (15). The output shaft of the servo motor (15) and the rotating rod (3) are respectively connected to transmission gears (14). The two sets of transmission gears (14) mesh with each other. The purification chamber (1) is connected to an air inlet pipe (9), an air outlet pipe (17), and a drain pipe (2). The air outlet pipe (17) is connected to the treatment chamber (16). The purification chamber (1) is connected to a detection device, which is used to detect the sealing performance of the purification chamber (1).

2. The dust purification device for a submerged arc furnace used in the production of low-carbon silicon-manganese alloy as described in claim 1, characterized in that: The detection device includes a U-shaped tube (5) connected to a purification box (1), an air pump (12) connected to the box cover (11), a detection tube (10) connected to the air pump (12), and the detection tube (10) connected to the box cover (11).

3. The dust purification device for a submerged arc furnace used in the production of low-carbon silicon-manganese alloy as described in claim 1, characterized in that: The cover (11) is connected to a scraper ring (4), which abuts against the inner wall of the purification box (1).

4. The dust purification device for a submerged arc furnace used in the production of low-carbon silicon-manganese alloy as described in claim 2, characterized in that: The outer wall of the U-shaped tube (5) is provided with a marking line (6).

5. The dust purification device for a submerged arc furnace used in the production of low-carbon silicon-manganese alloy as described in claim 2, characterized in that: The air inlet pipe (9), air outlet pipe (17), liquid drain pipe (2), detection pipe (10) and U-shaped pipe (5) are respectively connected to control switches (18).

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