Waste gas filtering device for submerged arc furnace

Abstract

The utility model discloses a submerged arc furnace waste gas filtering device which comprises an exhaust pipe, a dovetail block is arranged in a dovetail groove in a sliding mode, a positioning rod is fixedly connected to the side wall of the dovetail block, the bottom end of the positioning rod is inserted into a positioning hole and connected with the positioning hole in a sliding mode, and a compression spring is fixedly connected to the top face of the dovetail block. The guide rail is slidably sleeved with a barrel, the side wall of the barrel is fixedly connected with a feeding pipe, the feeding pipe corresponds to the feeding port, the section of the inner bottom face of the collecting groove is an inclined face, the bottom end of the collecting groove is fixedly communicated with a discharging pipe, and the side wall of the discharging pipe is fixedly connected with a valve. Active carbon particles are filled in the independent cavities to filter the waste gas, the active carbon particles in the independent cavities in the storage barrel can be replaced by moving the storage barrel, the storage barrel does not need to be disassembled, and the active carbon particles are convenient to replace.

Description

Technical field:

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a waste gas filtering device for a submerged arc furnace. Background technology:

[0002] The electric arc furnace, also known as the electric arc furnace, is an industrial electric furnace with huge power consumption. It uses carbon as a reducing agent to reduce and smelt metal ores. It is mainly used to produce ferrosilicon, ferromanganese, silicon-manganese alloy and other ferroalloys. It is an important equipment commonly used in the metallurgical industry. The electric arc furnace will produce a large amount of waste gas containing polluted particles during the smelting process of special alloys. The waste gas needs to be treated through filtration, adsorption and other links before it can be discharged.

[0003] The existing exhaust gas filtering device is mainly composed of a storage barrel and a perforated plate. After activated carbon particles are loaded into the storage barrel, the storage barrel is fixed in the exhaust pipe to filter the flue gas. The activated carbon particles become saturated after long-term use, and the storage barrel needs to be taken out to replace the internal activated carbon particles before it can be put into use. The staff takes the storage barrel out of the exhaust pipe through a clamping device, which is inconvenient for the replacement of the activated carbon particles. Utility model content:

[0004] To this end, the purpose of the utility model is to provide a waste gas filter device for an electric arc furnace to overcome the problem of the prior art that the existing waste gas filter device is mainly composed of a storage barrel and a perforated plate. After activated carbon particles are loaded in the storage barrel, the storage barrel is fixed in the exhaust pipe to filter the flue gas. The activated carbon particles become saturated after long-term use, and the storage barrel needs to be taken out to replace the internal activated carbon particles before it can be put into use. The staff takes the storage barrel out of the exhaust pipe through a clamping device, which makes it inconvenient to replace the activated carbon particles.

[0005] The utility model is implemented by the following technical solutions:

[0006] A waste gas filtering device for an electric arc furnace comprises an exhaust pipe, wherein a storage barrel is slidably provided inside the exhaust pipe, a plurality of air inlet holes are provided on the bottom surface of the storage barrel, a perforated plate is fixedly connected to the top surface of the storage barrel, a plurality of feed ports are provided on the top surface of the perforated plate, a sealing ring is provided at the connection between the exhaust pipe and the storage barrel, a plurality of partitions are evenly and fixedly connected inside the storage barrel, the partitions can separate the storage barrel into a plurality of independent cavities, each independent cavity can be slid into the exhaust pipe, activated carbon particles are contained in the independent cavity, a positioning mechanism is fixedly connected to the outer wall of the exhaust pipe, a feed port corresponds to the top end of each independent cavity, and a discharge mechanism is fixed to the bottom end of each independent cavity.

[0007] Preferably, the cross-section of the inner bottom surface of the storage barrel is an inclined surface.

[0008] Preferably, the positioning mechanism includes a dovetail groove and a plurality of positioning holes, the positioning hole is provided on the top surface of the orifice plate, the dovetail groove is provided on the side wall of the exhaust pipe, a dovetail block is slidably provided in the dovetail groove, a positioning rod is fixedly connected to the side wall of the dovetail block, the bottom end of the positioning rod is inserted into the positioning hole and is slidably connected thereto, a compression spring is fixedly connected to the top surface of the dovetail block, and the compression spring is provided in the dovetail groove and fixedly connected to the exhaust pipe.

[0009] Preferably, the discharging mechanism includes a cover plate and a discharging port, wherein the discharging port is opened on the bottom surface of the storage barrel, the cover plate is arranged below the discharging port and is hinged to the storage barrel through a pin shaft, and a torsion spring is fixedly connected between the storage barrel and the cover plate.

[0010] Preferably, a feeding mechanism is fixedly sleeved on the top surface of the exhaust pipe, and the feeding mechanism is located above the storage barrel.

[0011] Preferably, the feeding mechanism comprises a guide rail fixed on the side wall of the exhaust pipe, a cylinder is slidably sleeved on the guide rail, a feeding pipe is fixedly connected to the side wall of the cylinder, and the feeding pipe corresponds to the feeding port.

[0012] Preferably, a collecting mechanism is fixedly sleeved on the exhaust pipe, and the collecting mechanism is arranged below the discharge port.

[0013] Preferably, the collecting mechanism comprises a collecting trough fixedly sleeved on the exhaust pipe, the inner bottom cross-section of the collecting trough is an inclined surface, the bottom end of the collecting trough is fixedly connected to a discharge pipe, and the side wall of the discharge pipe is fixedly connected to a valve.

[0014] The advantages of the utility model are as follows: a plurality of partitions are fixedly connected to the storage barrel sliding through the exhaust pipe, the plurality of partitions can divide the internal space of the storage barrel into a plurality of independent cavities, each of which can be slid into the exhaust pipe, the independent cavity is filled with activated carbon particles to filter the exhaust gas, and the activated carbon particles in the independent cavity in the storage barrel can be replaced by moving the storage barrel, without disassembling the storage barrel, and the activated carbon particles can be replaced conveniently. Description of the drawings:

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is the structural diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of an embodiment of the discharging mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the feeding mechanism embodiment of the utility model;

[0019] Figure 4 It is a three-dimensional diagram of the structure of the utility model.

[0020] In the figure: exhaust pipe 1, storage barrel 2, orifice plate 3, partition plate 4, cover plate 5, torsion spring 6, feed port 7, discharge port 8, dovetail block 9, positioning rod 10, compression spring 11, dovetail groove 12, positioning hole 13, collecting tank 14, discharge pipe 15, guide rail 16, cylinder 17, feed pipe 18. Specific implementation method:

[0021] In order to make the purpose and advantages of the utility model more clearly understood, the utility model is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0022] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0023] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0024] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0025] like Figure 1-Figure 4As shown, the utility model provides the following technical solutions: an electric arc furnace exhaust gas filtering device, comprising an exhaust pipe 1, a storage barrel 2 is slidably provided inside the exhaust pipe 1, a plurality of air inlet holes are provided on the bottom surface of the storage barrel 2, a perforated plate 3 is fixedly connected to the top surface of the storage barrel 2, a plurality of feed ports 7 are provided on the top surface of the perforated plate 3, a sealing ring is provided at the connection between the exhaust pipe 1 and the storage barrel 2, a plurality of partitions 4 are evenly and fixedly connected inside the storage barrel 2, the partitions 4 can divide the storage barrel 2 into a plurality of independent cavities, each independent cavity can be slid into the exhaust pipe 1, activated carbon particles are contained in the independent cavity, a positioning mechanism is fixedly connected to the outer wall of the exhaust pipe 1, a feed port 7 corresponds to the top of each independent cavity, and a discharge mechanism is fixed to the bottom of each independent cavity.

[0026] The cross section of the inner bottom surface of the storage barrel 2 is an inclined surface, which is convenient for discharging the activated carbon particles in the storage barrel 2.

[0027] Please combine Figure 1 As shown, during the use process, the present device is used instead of the traditional filtering device. When the activated carbon particles in the independent cavity in the exhaust pipe 1 are saturated and need to be replaced, the positioning mechanism is pulled to cancel the orifice plate 3 so that the orifice plate 3 can move, thereby canceling the limit on the storage barrel 2, and then the storage barrel 2 is pushed, the storage barrel 2 drives the partition 4 to move, and the storage barrel 2 drives the independent cavity formed by the storage barrel 2 and the partition 4 to move, and the activated carbon particles in the independent cavity move, thereby pushing the used activated carbon particles out of the exhaust pipe 1 and pushing the unused activated carbon particles into the exhaust pipe 1 for use, and then operating the discharging mechanism to discharge the used activated carbon particles, and then adding the unused activated carbon particles from the corresponding feed port 7. The storage barrel 2 can be moved to realize the replacement of the activated carbon particles in the independent cavity in the storage barrel 2, without disassembling the storage barrel 2, and the replacement of the activated carbon particles is convenient.

[0028] Please combine Figure 1 , Figure 2 As shown, an embodiment of the positioning mechanism includes a dovetail groove 12 and a plurality of positioning holes 13. The positioning hole 13 is provided on the top surface of the orifice plate 3, and the dovetail groove 12 is provided on the side wall of the exhaust pipe 1. A dovetail block 9 is slidably provided in the dovetail groove 12, and a positioning rod 10 is fixedly connected to the side wall of the dovetail block 9. The bottom end of the positioning rod 10 is inserted into the positioning hole 13 and is slidably connected thereto. A compression spring 11 is fixedly connected to the top surface of the dovetail block 9, and the compression spring 11 is provided in the dovetail groove 12 and is fixedly connected to the exhaust pipe 1.

[0029] Please combine Figure 1As shown, during use, when the storage barrel 2 needs to be moved, the positioning rod 10 is first pulled out of the positioning hole 13 to cancel the limit on the orifice plate 3 so that the orifice plate 3 can move, and the positioning rod 10 drives the dovetail groove 12 to move and squeeze the compression spring 11 to deform. When the storage barrel 2 has finished moving, the positioning rod 10 is released again. At this time, the deformed compression spring 11 pushes the dovetail groove 12 to move, and the dovetail groove 12 drives the positioning rod 10 to move and is inserted into the positioning hole 13 again to limit the orifice plate 3, so that the orifice plate 3 cannot move. The inability of the orifice plate 3 to move makes the storage barrel 2 unable to move, thereby realizing the positioning effect of the storage barrel 2.

[0030] Please combine Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an embodiment of the discharging mechanism includes a cover plate 5 and a discharging port 8. The discharging port 8 is opened on the bottom surface of the storage barrel 2. The cover plate 5 is arranged below the discharging port 8 and is hinged to the storage barrel 2 through a pin shaft. A torsion spring 6 is fixedly connected between the storage barrel 2 and the cover plate 5.

[0031] Please combine Figure 1 As shown, during the use process, when it is necessary to discharge the used activated carbon particles, the corresponding cover plate 5 is pulled to rotate, causing the torsion spring 6 to deform, and the cover plate 5 rotates and separates from the discharge port 8. At this time, the used activated carbon particles are discharged from the discharge port 8 along the inclined surface of the storage barrel 2. A container is used to receive the discharged activated carbon particles. After the activated carbon particles are discharged, the cover plate 5 is released. At this time, the deformed torsion spring 6 drives the cover plate 5 to rotate and fit with the discharge port 8 again to achieve the blocking of the discharge port 8.

[0032] A feeding mechanism is fixedly sleeved on the top surface of the exhaust pipe 1 , and the feeding mechanism is located above the storage barrel 2 .

[0033] Please combine Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an embodiment of the feeding mechanism includes a guide rail 16 fixed to the side wall of the exhaust pipe, a cylinder 17 is slidably sleeved on the guide rail 16, and a feeding pipe 18 is fixedly connected to the side wall of the cylinder 17, and the feeding pipe 18 corresponds to the feeding port 7.

[0034] Please combine Figure 1 As shown, during use, when the independent cavity formed by the storage barrel 2 and the partition 4 needs to be loaded with activated carbon particles, the rotating feed pipe 18 is corresponding to the corresponding feed port 7, and the feed pipe 18 drives the cylinder 17 to slide on the guide rail 16, and then the activated carbon particles enter the independent cavity from the feed port 7 along the feed pipe 18 to realize the loading of the activated carbon particles.

[0035] A collecting mechanism is fixedly sleeved on the exhaust pipe 1 and is arranged below the discharge port 8 .

[0036] Please combine Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an embodiment of the collecting mechanism includes a collecting tank 14 fixedly sleeved on the exhaust pipe 1, the inner bottom cross-section of the collecting tank 14 is an inclined surface, the bottom end of the collecting tank 14 is fixedly connected to a discharge pipe 15, and the side wall of the discharge pipe 15 is fixedly connected to a valve.

[0037] Please combine Figure 1 As shown, during use, the cover plate 5 is opened to discharge the used activated carbon particles, and the used activated carbon particles fall into the collecting tank 14 along the discharge port 8, so that the activated carbon particles are collected. The activated carbon particles in the collecting tank 14 are discharged regularly by opening the valve on the side wall of the discharge pipe 15, and the activated carbon particles in the collecting tank 14 are discharged from the discharge pipe 15 along the bottom surface of the collecting tank 14.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A filtration device for waste gas from an electric arc furnace, comprising an exhaust pipe, a material storage barrel is slidably provided in the exhaust pipe, a plurality of air inlet holes are provided on the bottom surface of the material storage barrel, a perforated plate is fixedly connected to the top surface of the material storage barrel, and a plurality of feed ports are provided on the top surface of the perforated plate, characterized in that: A sealing ring is provided at the connection between the exhaust pipe and the storage barrel. A plurality of partitions are evenly and fixedly connected inside the storage barrel. The partitions can divide the storage barrel into a plurality of independent cavities. Each independent cavity can slide into the exhaust pipe. Activated carbon particles are contained in the independent cavity. A positioning mechanism is fixedly connected to the outer wall of the exhaust pipe. The top of each independent cavity corresponds to a feed port, and a discharge mechanism is fixed at the bottom of each independent cavity.

2. The exhaust gas filtering device for a submerged arc furnace according to claim 1, characterized in that: The cross section of the inner bottom surface of the material storage barrel is an inclined surface.

3. The exhaust gas filtering device for a submerged arc furnace according to claim 2, characterized in that: The positioning mechanism includes a dovetail groove and multiple positioning holes, the positioning hole is opened on the top surface of the orifice plate, the dovetail groove is opened on the side wall of the exhaust pipe, a dovetail block is slidably provided in the dovetail groove, a positioning rod is fixedly connected to the side wall of the dovetail block, the bottom end of the positioning rod is inserted into the positioning hole and slidably connected thereto, a compression spring 11 is fixedly connected to the top surface of the dovetail block, and the compression spring 11 is arranged in the dovetail groove 12 and fixedly connected to the exhaust pipe 1.

4. The exhaust gas filtering device for a submerged arc furnace according to claim 3, characterized in that: The discharging mechanism includes a cover plate and a discharging port, wherein the discharging port is opened on the bottom surface of the storage barrel, the cover plate is arranged below the discharging port and is hinged to the storage barrel through a pin shaft, and a torsion spring is fixedly connected between the storage barrel and the cover plate.

5. A submerged arc furnace exhaust gas filtering device according to any one of claims 1 to 4, characterized in that: A feeding mechanism is fixedly sleeved on the top surface of the exhaust pipe, and the feeding mechanism is located above the material storage barrel.

6. The exhaust gas filtering device for a submerged arc furnace according to claim 5, characterized in that: The feeding mechanism comprises a guide rail fixed on the side wall of the exhaust pipe, a cylinder is slidably sleeved on the guide rail, a feeding pipe is fixedly connected to the side wall of the cylinder, and the feeding pipe corresponds to the feeding port.

7. The exhaust gas filtering device for a submerged arc furnace according to claim 6, characterized in that: A collecting mechanism is fixedly sleeved on the exhaust pipe and is arranged below the discharge port.

8. The exhaust gas filtering device for a submerged arc furnace according to claim 7, characterized in that: The collecting mechanism comprises a collecting groove fixedly sleeved on the exhaust pipe, the inner bottom cross section of the collecting groove is an inclined surface, the bottom end of the collecting groove is fixedly connected to a discharge pipe, and the side wall of the discharge pipe is fixedly connected to a valve.

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