Submerged arc furnace slag sluice structure capable of preventing sludge

Abstract

The utility model is applicable to the technical field of slag sluices of submerged arc furnaces, and provides an anti-sludge slag sluice structure of a submerged arc furnace, which comprises a slag sluice body for flushing slag generated during production and processing of silicon-manganese alloy, the mounting plates are fixedly mounted on the slag sluice body; the plurality of purging pipes are rotationally mounted on the plurality of mounting plates respectively and are used for purging slag in the slag sluice body; a plurality of purging nozzles are arranged on the purging pipes; and the slag flushing mechanism is assembled on the slag flushing trough body and is used for flushing high-temperature molten slag falling into the slag flushing trough body. According to the submerged arc furnace slag flushing trough structure capable of preventing sludge, slag generated in the silicon-manganese alloy machining process can be subjected to slag flushing treatment, the slag can be purged, airflow is used for pushing the slag and assisting in flowing of the slag, it is ensured that the slag is smoothly discharged, and the condition that the slag is deposited is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of slag flushing channels for electric arc furnaces, and particularly relates to a structure for a slag flushing channel for electric arc furnaces that prevents slag buildup. Background Technology

[0002] In the process of producing silicon-manganese alloy using an electric arc furnace, a lot of slag is generated, so a corresponding electric arc furnace slag flushing ditch structure is needed. The electric arc furnace slag flushing ditch is an important facility in the metallurgical industry, used to transport high-temperature slag.

[0003] When using the slag flushing ditch structure to transport molten slag in an electric arc furnace, due to actual geographical reasons, the slag flushing ditch is often not constructed in a straight line and has some bends. At these locations, molten slag is prone to accumulate, affecting production efficiency and increasing maintenance costs. Utility Model Content

[0004] This utility model provides a slag flushing channel structure for an electric arc furnace to prevent slag accumulation, aiming to solve the problem of molten slag accumulation that is easily caused by the slag flushing channel structure currently used in electric arc furnaces as mentioned in the background art.

[0005] To solve the above problems, this utility model is implemented as follows: a slag flushing ditch structure for preventing slag buildup in a submerged arc furnace includes: a slag flushing ditch body for flushing molten slag generated during the production and processing of silicon-manganese alloy; multiple mounting plates fixedly installed on the slag flushing ditch body; multiple purging pipes rotatably mounted on the multiple mounting plates for purging molten slag within the slag flushing ditch body, each purging pipe being equipped with multiple purging nozzles; and a slag flushing mechanism assembled on the slag flushing ditch body for flushing high-temperature molten slag that falls into the slag flushing ditch body.

[0006] Preferably, a placement tube is fixedly installed on one side of the mounting plate, and multiple flexible hoses are connected to the placement tube. The multiple flexible hoses are respectively connected to multiple purge tubes, and a connecting tube is connected to the placement tube.

[0007] Preferably, the slag flushing mechanism includes: a first water pump mounted on one side of the slag flushing ditch body; a bent pipe fixedly installed on the slag flushing ditch body, the bent pipe being connected to the outlet end of the first water pump; and a spray pipe fixedly installed on the slag flushing ditch body, the spray pipe being connected to the bent pipe, and the spray pipe being provided with multiple spray heads.

[0008] Preferably, the slag flushing ditch body is provided with a cooling mechanism for cooling the slag flushing ditch body. The cooling mechanism includes: an installation cavity opened on the slag flushing ditch body, in which a cooling pipe for circulating cooling water within the slag flushing ditch body is fixedly installed; and a second water pump assembled on one side of the slag flushing ditch body, the inlet end of the second water pump being connected to one end of the cooling pipe.

[0009] Preferably, the mounting plate and the purge pipe are provided with an adjustment mechanism for adjusting the purge angle of the purge nozzle. The adjustment mechanism includes: a worm gear fixedly sleeved on the purge pipe; and a worm installed on the mounting plate through a damping shaft, wherein the worm and the worm gear mesh with each other.

[0010] Preferably, a protective plate is fixedly installed on one side of the purge nozzle, and the protective plate is used to protect the purge nozzle.

[0011] Preferably, the slag flushing ditch body includes a base layer, an intermediate layer, and a working surface, wherein the intermediate layer is disposed within the base layer, and the working surface is disposed on the base layer.

[0012] Compared with related technologies, the anti-slag flushing ditch structure for submerged arc furnaces provided by this utility model has the following beneficial effects:

[0013] Compared with existing technologies, the slag flushing trench structure for electric arc furnaces provided by this solution can flush out the slag generated during the processing of silicon-manganese alloys and can also blow away the slag. By using airflow to push the slag, it can assist the slag flow, ensure that the slag is discharged smoothly, avoid slag accumulation, improve production efficiency and reduce maintenance costs. Attached Figure Description

[0014] Figure 1 This is a front view schematic diagram of a slag flushing ditch structure for an electric arc furnace that prevents slag buildup, provided by this utility model.

[0015] Figure 2 This is a schematic diagram of the front sectional view of the present invention;

[0016] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure;

[0017] Figure 4 for Figure 1 An enlarged structural diagram of part B shown in the figure;

[0018] Figure 5 This is a partial cross-sectional structural diagram of the slag flushing ditch body of this utility model;

[0019] Figure 6This is a three-dimensional structural diagram of the slag ditch body in this utility model.

[0020] Attached reference numerals: 1. Slag flushing ditch body; 101. Base layer; 102. Intermediate layer; 103. Working surface; 2. Mounting plate; 3. Purge pipe; 4. Purge nozzle; 5. Placement pipe; 6. Connecting pipe; 7. First water pump; 8. Bend pipe; 9. Spray pipe; 10. Spray head; 11. Mounting cavity; 12. Cooling pipe; 13. Second water pump; 14. Worm gear; 15. Worm; 16. Protective plate. Detailed Implementation

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] This utility model embodiment provides a slag flushing ditch structure for preventing slag buildup in a submerged arc furnace, such as... Figure 1-6 As shown, the slag flushing ditch structure for preventing slag buildup in an electric arc furnace includes: a slag flushing ditch body 1 for flushing molten slag generated during the production and processing of silicon-manganese alloy; multiple mounting plates 2 fixedly installed on the slag flushing ditch body 1; multiple purging pipes 3 rotatably mounted on the multiple mounting plates 2 for purging molten slag within the slag flushing ditch body 1, each purging pipe 3 being equipped with multiple purging nozzles 4; and a slag flushing mechanism assembled on the slag flushing ditch body 1 for flushing high-temperature molten slag that falls into the slag flushing ditch body 1.

[0024] In this embodiment, during use, the entire slag flushing ditch body 1 is constructed at the corresponding location, and multiple purging pipes 3 are installed at turning points or slope change points on the slag flushing ditch body 1. A screw air compressor is installed outside the slag flushing ditch body 1, and the screw air compressor supplies compressed air to the purging pipes 3. Molten slag generated during the silicon-manganese alloy processing falls into the slag flushing ditch body 1, activating the slag flushing mechanism. The slag flushing mechanism sprays a large amount of cold water into the slag flushing ditch body 1, which comes into contact with the high-temperature molten slag, thereby performing the slag flushing operation. During the slag flushing process, the screw air compressor is activated as needed. The rod-type air compressor and screw-type air compressor supply compressed air into the purge pipe 3. The compressed air is blown into the slag flushing trench body 1 through the purge nozzle 4. The airflow is used to push the molten slag, assist the molten slag flow, ensure the smooth discharge of molten slag, avoid slag accumulation, improve production efficiency and reduce maintenance costs. Through the entire structure, slag generated during the processing of silicon-manganese alloy can be flushed and purged. The airflow is used to push the molten slag, assist the molten slag flow, ensure the smooth discharge of molten slag, avoid slag accumulation, improve production efficiency and reduce maintenance costs.

[0025] In a further preferred embodiment of the present invention, a placement tube 5 is fixedly installed on one side of the mounting plate 2, and a plurality of flexible hoses are connected to the placement tube 5. The plurality of flexible hoses are respectively connected to a plurality of purge tubes 3, and a connecting tube 6 is connected to the placement tube 5.

[0026] In this embodiment, when purging the molten slag, the screw air compressor is started. The compressed air generated by the screw air compressor enters the placement pipe 5 through the connecting pipe 6, and then enters the purging pipe 3 through the hose. Finally, the compressed air is blown into the slag flushing ditch body 1 through the purging nozzle 4. The airflow is used to push the molten slag, assist the molten slag flow, ensure that the molten slag is discharged smoothly, and avoid the situation of molten slag accumulation.

[0027] In a further preferred embodiment of the present invention, the slag flushing mechanism includes: a first water pump 7 mounted on one side of the slag flushing ditch body 1; a bent pipe 8 fixedly installed on the slag flushing ditch body 1, the bent pipe 8 being connected to the water outlet end of the first water pump 7; and a spray pipe 9 fixedly installed on the slag flushing ditch body 1, the spray pipe 9 being connected to the bent pipe 8, and the spray pipe 9 being provided with a plurality of spray heads 10.

[0028] In this embodiment, the inlet of the first water pump 7 is first connected to the corresponding water source pipe. When using the slag flushing mechanism, the first water pump 7 is started, and water enters the spray pipe 9 through the bend pipe 8. Then, it is sprayed into the slag flushing ditch body 1 through multiple spray nozzles 10, and comes into contact with the high-temperature molten slag to perform the slag flushing operation.

[0029] In a further preferred embodiment of the present invention, a cooling mechanism for cooling the slag flushing ditch body 1 is provided on the slag flushing ditch body 1. The cooling mechanism includes: an installation cavity 11 opened on the slag flushing ditch body 1, in which a cooling pipe 12 for circulating cooling water in the slag flushing ditch body 1 is fixedly installed; and a second water pump 13 assembled on one side of the slag flushing ditch body 1, the water inlet end of the second water pump 13 being connected to one end of the cooling pipe 12.

[0030] In this embodiment, one end of the cooling pipe 12 is first connected to the corresponding recovery pipe, and the inlet end of the second water pump 13 is connected to the corresponding water source pipe. When flushing slag in the slag flushing ditch body 1, the overall temperature is high. According to the actual needs, a cooling mechanism is used to start the second water pump 13, and low-temperature water enters the cooling pipe 12. The cooling water continuously circulates in the cooling pipe 12. According to the principle of heat transfer, the heat on the slag flushing ditch body 1 can be removed, thereby cooling the slag flushing ditch body 1, reducing the surface temperature of the slag flushing ditch body 1, reducing the chemical erosion and physical scouring caused by molten slag on the slag flushing ditch body 1, and preventing the slag flushing ditch body 1 from sintering, peeling or cracking due to overheating, thus significantly improving the service life of the slag flushing ditch body 1.

[0031] In a further preferred embodiment of the present invention, the mounting plate 2 and the purge pipe 3 are provided with an adjustment mechanism for adjusting the purge angle of the purge nozzle 4. The adjustment mechanism includes: a worm gear 14 fixedly sleeved on the purge pipe 3; and a worm 15 rotatably mounted on the mounting plate 2 via a damping shaft, wherein the worm 15 and the worm gear 14 mesh with each other.

[0032] In this embodiment, when using the purge nozzle 4, the angle of the purge nozzle 4 can be adjusted according to actual needs. During adjustment, the operator applies force to rotate the worm gear 15 to drive the worm wheel 14 to rotate, thereby driving the purge nozzle 4 on the purge pipe 3 to adjust the angle, better meeting actual usage needs. The use is more flexible. A protective cover can be set on the mounting plate 2 to protect the worm wheel 14 and the worm gear 15.

[0033] In a further preferred embodiment of the present invention, a protective plate 16 is fixedly installed on one side of the purge nozzle 4, and the protective plate 16 is used to protect the purge nozzle 4.

[0034] In this embodiment, a protective plate 16 is used to protect the purge nozzle 4.

[0035] In a further preferred embodiment of the present invention, the slag flushing ditch body 1 includes a base layer 101, an intermediate layer 102 and a working surface 103, wherein the intermediate layer 102 is disposed within the base layer 101 and the working surface 103 is disposed on the base layer 101.

[0036] In this embodiment, the base layer 101 is concrete, the intermediate layer 102 is silicon carbide refractory brick, the working surface 103 is high-alumina wear-resistant castable, and the slag flushing ditch body 1 adopts a multi-layer composite lining to improve erosion resistance and thermal shock resistance.

[0037] In summary, compared with related technologies, this structure can flush out the slag generated during the processing of silicon-manganese alloys and purge the slag. It uses airflow to drive the slag, assists in the flow of the slag, ensures the smooth discharge of the slag, avoids slag accumulation, improves production efficiency, and reduces maintenance costs.

[0038] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A slag-tap channel structure of a submerged arc furnace, characterized by comprising: The utility model relates to a slag flushing channel body for slag flushing of slag produced in the production and processing of ferromanganese-silicon alloy, a plurality of mounting plates fixedly installed on the slag flushing channel body, a plurality of blowing pipes respectively rotatably installed on the mounting plates for blowing of the slag in the slag flushing channel body, a plurality of blowing nozzles provided on the blowing pipes, and a slag flushing mechanism assembled on the slag flushing channel body for slag flushing of high-temperature slag falling into the slag flushing channel body. One side of the mounting plate is fixedly installed with a placing pipe, a plurality of hoses are connected to the placing pipe, the plurality of hoses are respectively communicated with the plurality of blowing pipes, and a connecting pipe is connected to the placing pipe. The slag flushing mechanism comprises a first water pump assembled on one side of the slag flushing channel body, an elbow pipe fixedly installed on the slag flushing channel body and communicated with a water outlet end of the first water pump, a spray pipe fixedly installed on the slag flushing channel body and communicated with the elbow pipe, and a plurality of water spray heads provided on the spray pipe. The slag flushing channel body is provided with a cooling mechanism for cooling of the slag flushing channel body, the cooling mechanism comprising a mounting cavity opened in the slag flushing channel body, a cooling pipe fixedly installed in the mounting cavity for circulation of cooling water in the slag flushing channel body, and a second water pump assembled on one side of the slag flushing channel body and having a water inlet end communicated with one end of the cooling pipe. The mounting plate and the blowing pipe are provided with an adjusting mechanism for adjusting the blowing angle of the blowing nozzle, the adjusting mechanism comprising a worm gear fixedly sleeved on the blowing pipe and a worm shaft rotatably installed on the mounting plate and engaged with the worm gear.

2. The clogging-preventing slag notch structure of the submerged arc furnace according to Claim 1, wherein One side of the blowing nozzle is fixedly installed with a protective plate for protection of the blowing nozzle.

3. The clogging-preventing slag notch structure of the submerged arc furnace according to Claim 1, wherein The slag flushing channel body comprises a base layer, an intermediate layer provided in the base layer, and a working surface provided on the base layer. ​ ​ ​ 4. The clogging-preventing slag notch structure of the submerged arc furnace according to Claim 1, wherein ​ ​ ​ 5. The clogging-preventing slag notch structure of the submerged arc furnace according to Claim 1, wherein ​ ​ ​ 6. The clogging-preventing slag notch structure of the submerged arc furnace according to Claim 1, wherein ​ 7. The clogging-preventing slag notch structure of the submerged arc furnace according to Claim 1, wherein ​

Images