Submerged arc furnace tail gas device for manganese-silicon alloy smelting

Abstract

The utility model relates to the technical field of tail gas treatment, in particular to a submerged arc furnace tail gas device for manganese-silicon alloy smelting, which comprises a box body and a gas distribution component, a tail gas pipe penetrates through the lower side of one side wall of the box body, the gas distribution component is mounted on the lower side of an inner cavity of the box body and communicated with the tail gas pipe, and the gas distribution component is used for uniformly distributing gas; the filtering assembly is mounted on the upper side of the inner cavity of the box body, and the filtering assembly is used for filtering gas; and the cover plate is detachably connected with the top of the box body through bolts, and the top of the cover plate fixedly communicates with an exhaust pipe. When tail gas is guided into water, gas can be uniformly guided into different positions in the water by utilizing the gas distribution assembly, so that heat exchange is sufficient, water in the box body is fully utilized, the service time is prolonged after single water change, the water change frequency is reduced, and water resources are saved.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas treatment technology, specifically to an exhaust gas device for a submerged arc furnace used in the smelting of manganese-silicon alloys. Background Technology

[0002] The smelting of manganese silicon alloy is a complex process involving multiple steps and factors. The smelting principle of manganese silicon alloy is mainly to use a reducing agent (such as coke) at high temperature to reduce manganese oxide and silicon dioxide in manganese ore and silica to manganese and silicon, and then obtain the final manganese silicon alloy product through smelting and refining processes.

[0003] The existing smelting process of manganese silicon alloys generates a large amount of exhaust gas. For environmental protection, this exhaust gas needs to be treated. Currently, there are many methods for treating exhaust gas, including introducing it into water for dust removal and cooling, followed by filtration using a filter screen. However, when introducing exhaust gas into water, the gas often only utilizes a localized area of ​​water for cooling, resulting in uneven gas distribution and poor heat exchange. This leads to insufficient utilization of the water, requiring frequent water replacements and causing water waste. Therefore, we propose a tail gas treatment device for submerged arc furnaces in manganese silicon alloy smelting. Utility Model Content

[0004] The purpose of this invention is to provide a tail gas device for a submerged arc furnace used in the smelting of manganese silicon alloys, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tail gas device for a submerged arc furnace used in the smelting of manganese-silicon alloys, comprising a housing, wherein a tail gas pipe extends through the lower side of one side wall of the housing, and further comprising:

[0006] A gas distribution assembly is installed on the lower side of the inner cavity of the housing and is connected to the exhaust pipe. The gas distribution assembly is used to evenly distribute the gas.

[0007] A filter assembly is installed on the upper side of the inner cavity of the housing, and the filter assembly is used to filter gas.

[0008] The cover plate is detachably connected to the top of the housing by bolts, and the top of the cover plate is fixedly connected to an exhaust pipe.

[0009] By adopting the above technical solution, water is first introduced into the inner cavity of the chamber, allowing the water to overflow the air distribution component. Then, the exhaust gas is introduced into the air distribution component through the exhaust pipe. The air distribution component then ensures that the exhaust gas is evenly distributed in the water, where it is cooled and dust is washed away. The gas then rises and passes through the filter component for filtration. After filtration, it is discharged through the exhaust pipe. The even distribution component ensures that the gas is evenly distributed, thus making full use of the water in the chamber and avoiding excessively high local water temperatures that could affect the heat exchange effect. This reduces the frequency of water changes and helps to save water resources.

[0010] In a preferred embodiment of this utility model, the air distribution assembly includes:

[0011] A servo motor is fixedly installed at the bottom center of the housing. The drive shaft of the servo motor passes through the housing and is fixedly connected to a hollow plate. The top of the hollow plate has multiple evenly distributed holes. A connecting pipe is connected to the top center of the hollow plate through a rotary joint. The connecting pipe is connected to the exhaust pipe.

[0012] By adopting the above technical solution, after the gas enters the connecting pipe, it can enter the inner cavity of the hollow plate through the rotary joint, and then be discharged through the hole. The servo motor drives the hollow plate to rotate at a constant speed, so that the gas can be evenly distributed in the water.

[0013] In a preferred embodiment of this utility model, the filtering component includes:

[0014] An activated carbon filter screen is provided on the upper side of the inner cavity of the box. The inner walls of the box are fixed with fixing strips, and the activated carbon filter screen is placed on the fixing strips.

[0015] Two pressure plates are attached to the top sides of the activated carbon filter screen. A spring is fixed to the top of each pressure plate, and the top of the spring is fixedly connected to the bottom of the cover plate.

[0016] By adopting the above technical solution, the gas passes through the activated carbon filter screen, and when the gas passes upward through the filter screen, it will generate an impact force on it, thereby increasing the amplitude under the action of the spring. This can shake off the blockage impurities to a certain extent, which helps to extend the service life of the activated carbon filter screen.

[0017] In a preferred embodiment of this utility model, a water inlet valve is fixedly connected to the middle of one side wall of the box, and a drain valve is fixedly connected to the lower side of the other side wall of the box.

[0018] By adopting the above technical solution, after the water in the tank has been used for a certain period of time, the water can be replaced by opening the inlet valve to allow water to enter and the drain valve to allow water to exit.

[0019] In a preferred embodiment of this utility model, a suitable rubber pad is fixedly glued to the bottom of the cover plate.

[0020] By adopting the above technical solution and setting the rubber gasket, the sealing effect is good after the cover plate and the box are connected.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] The present application provides a tail gas device for a submerged arc furnace used in the smelting of manganese silicon alloy. By introducing the tail gas into water, the gas distribution component can evenly guide the gas to different positions in the water, thereby ensuring sufficient heat exchange and making full use of the water in the tank. This extends the usage time after a single water change, which helps to reduce the frequency of water changes and save water resources.

[0023] After being washed and cooled, the gas passes through an activated carbon filter plate. As the gas rises through the filter plate, it generates an impact force, which, under the action of springs, increases the amplitude. This helps to shake off the blockage impurities to a certain extent, thus extending the service life of the activated carbon filter plate. Attached Figure Description

[0024] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the overall structure of a tail gas device for a submerged arc furnace used in the smelting of manganese-silicon alloys according to the present invention.

[0026] Figure 2 This is a cross-sectional structural schematic diagram of a tail gas device for a submerged arc furnace used in the smelting of manganese silicon alloys according to the present invention.

[0027] Figure 3 This is a schematic diagram of the hollow plate structure of a tail gas device for a submerged arc furnace used in the smelting of manganese silicon alloys according to this utility model.

[0028] In the picture:

[0029] 1. Housing; 11. Cover plate; 12. Exhaust pipe; 13. Tailpipe; 14. Servo motor; 15. Connecting pipe; 16. Rotary joint; 17. Hollow plate; 18. Hole;

[0030] 2. Inlet valve; 21. Drain valve;

[0031] 3. Activated carbon filter screen; 31. Spring; 32. Pressure plate. Detailed Implementation

[0032] Please see Figure 1-3This utility model provides a technical solution: a tail gas device for a submerged arc furnace used in the smelting of manganese silicon alloy, comprising a housing 1, with a tail gas pipe 13 passing through the lower side of one side wall of the housing 1, and further comprising:

[0033] The gas distribution assembly is installed on the lower side of the inner cavity of the housing 1 and is connected to the exhaust pipe 13. The gas distribution assembly is used to distribute the gas evenly.

[0034] The filter assembly is installed on the upper side of the inner cavity of the housing 1 and is used to filter the gas.

[0035] The cover plate 11 is detachably connected to the top of the box 1 by bolts, and the top of the cover plate 11 is fixedly connected to the exhaust pipe 12.

[0036] It should be understood that in actual use, water is first introduced into the inner cavity of the chamber 1 so that the water overflows the air distribution component. Then, the exhaust gas is introduced into the air distribution component through the exhaust pipe 13. The air distribution component then distributes the exhaust gas evenly in the water, cooling and cleaning the dust through the water. The gas then rises and passes through the filter component for filtration. After filtration, it is discharged through the exhaust pipe 12. The even distribution component ensures that the gas is evenly distributed, so that the water in the chamber 1 can be fully utilized, avoiding local water temperature from being too high and affecting the heat exchange effect. This reduces the frequency of water replacement and helps to save water resources.

[0037] Furthermore, a suitable rubber pad is glued to the bottom of the cover plate 11, which ensures a good sealing effect after the cover plate 11 and the box body 1 are connected.

[0038] Furthermore, a water inlet valve 2 is fixedly connected to the middle of one side wall of the tank 1, and a drain valve 21 is fixedly connected to the lower side of the other side wall of the tank 1. Thus, after the water in the tank 1 has been used for a certain period of time, the water inlet valve 2 can be opened to open the water inlet valve, and the drain valve 21 can be opened to open the water outlet valve, thereby realizing the replacement of the water.

[0039] like Figure 1 and 2 As shown; the air distribution assembly includes:

[0040] Servo motor 14 is fixedly installed at the bottom center of housing 1. The drive shaft of servo motor 14 passes through housing 1 and is fixedly connected to hollow plate 17. Multiple evenly distributed holes 18 are opened on the top of hollow plate 17. A connecting pipe 15 is connected to the top center of hollow plate 17 through rotary joint 16. The connecting pipe 15 is connected to exhaust pipe 13.

[0041] It should be understood that after the gas enters the connecting pipe 15, it can enter the inner cavity of the hollow plate 17 through the rotary joint 16, and then be discharged through the hole 18. The servo motor 14 drives the hollow plate 17 to rotate at a constant speed, so that the gas can be evenly distributed in the water.

[0042] like Figure 1 and 2 As shown; the filtering components include:

[0043] Activated carbon filter plate 3 is set on the upper side of the inner cavity of the box 1. Fixing strips are fixed on both sides of the inner cavity of the box 1, and the activated carbon filter plate 3 is placed on the fixing strips.

[0044] There are two pressure plates 32, which are attached to the top two sides of the activated carbon filter plate 3. A spring 31 is fixed to the top of the pressure plate 32, and the top of the spring 31 is fixedly connected to the bottom of the cover plate 11.

[0045] It should be understood that when the gas passes through the activated carbon filter plate 3, it will generate an impact force on the filter plate as it passes upward. This will increase the amplitude under the action of the spring 31, which can shake off the blockage impurities to a certain extent, thus helping to extend the service life of the activated carbon filter plate 3.

[0046] Furthermore, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the specific embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A furnace tail gas device for ferromanganese-silicon smelting, comprising a box (1), a tail gas pipe (13) is penetrated through the lower side of a side wall of the box (1), characterized in that, Also include: Air distribution assembly, which is installed in the lower side of the inner cavity of the box (1), and communicates with the tail gas pipe (13), which is used for air distribution; The air distribution assembly comprises: Servo motor (14), which is fixedly installed in the middle of the bottom of the box (1), the transmission shaft of the servo motor (14) penetrates the box (1) and is fixedly connected with the hollow plate (17), the top of the hollow plate (17) is provided with a plurality of evenly distributed holes (18), the top middle of the hollow plate (17) is communicated with the connecting pipe (15) through the rotary joint (16), and the connecting pipe (15) communicates with the tail gas pipe (13); Filter assembly, which is installed on the upper side of the inner cavity of the box (1), which is used for filtering gas; Cover plate (11), which is detachably connected with the top of the box (1) by bolts, and the top of the cover plate (11) is fixedly connected with the exhaust pipe (12).

2. An off-gas arrangement for a submerged arc furnace for smelting manganese silicon alloy as claimed in claim 1, wherein: The filter assembly comprises: Activated carbon filter screen plate (3), which is arranged on the upper side of the inner cavity of the box (1), and the two side walls of the inner cavity of the box (1) are fixedly connected with the fixed strip, and the activated carbon filter screen plate (3) is placed on the fixed strip; Pressing plate (32), the number of the pressing plate (32) is two, and the pressing plate (32) is attached to the top of the activated carbon filter screen plate (3) on both sides, the top of the pressing plate (32) is fixedly connected with the spring (31), and the top of the spring (31) is fixedly connected with the bottom of the cover plate (11).

3. An off-gas arrangement for a submerged arc furnace for smelting manganese silicon alloy as claimed in claim 1, wherein: The middle of one side wall of the box (1) is fixedly connected with the water inlet valve (2), and the lower side of the other side wall of the box (1) is fixedly connected with the drain valve (21).

4. An off-gas arrangement for a submerged arc furnace for smelting manganese silicon alloy as claimed in claim 1, wherein: The bottom of the cover plate (11) is fixedly connected with the rubber pad.

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