Large-scale production plant for ferromanganese produced in an electric arc furnace

Abstract

The application discloses a large-scale manganese production device of a submerged arc furnace and relates to the technical field of ferroalloy smelting.The device comprises a submerged arc furnace body, a shielding disc, a batching box and a conveying frame, a furnace door is assembled on the bottom peripheral wall of the submerged arc furnace body, a furnace cover is arranged on the upper side wall of the submerged arc furnace body, the center of the furnace cover is inlaid with the shielding disc, an adapter plate is arranged on the outer side wall of the submerged arc furnace body, the outer wall of the submerged arc furnace body is connected with the conveying frame through the adapter plate, and the batching box is installed on the top side wall of the submerged arc furnace body.The batching box can be used for classifying and storing different raw materials, the bottom of the batching box is provided with a batching pipe, the batching pipe is extended into the interior of the submerged arc furnace body through the telescopic rod during the feeding process, the overflow of the raw materials is avoided, the feeding amount can be automatically controlled through the electronic feeding valve, the lifting rod can drive the batching box to move back and forth on the sliding rail of the conveying frame, and the effect of raw material replenishment is achieved.

Description

Technical Field

[0001] This invention belongs to the field of ferroalloy smelting technology, and in particular relates to a large-scale submerged arc furnace for producing metallic manganese. Background Technology

[0002] With the development of the times and technology, the ferroalloy smelting industry has also made rapid progress. The most significant improvements are mainly in equipment and processes. There are various types of equipment used in ferroalloy smelting technology, and with the development of the times and technology, the technological level of this series of equipment has also been greatly improved. One of the most representative pieces of equipment is the large-scale submerged arc furnace. Using the submerged arc furnace to produce metallic manganese can ensure the standardization of the smelting environment.

[0003] 1. Existing large-scale submerged arc furnaces used in ferroalloy smelting to produce metallic manganese have difficulties in controlling the feeding process. The materials need to be weighed manually and all raw materials need to be added into the furnace at once. However, the melting temperature and melting time of the raw materials are different during the production of metallic manganese, which leads to different mixing degrees and mixing order, resulting in uneven composition of the material.

[0004] 2. In existing large-scale submerged arc furnace production equipment for ferroalloy smelting to produce metallic manganese, the feeding of the submerged arc furnace is basically carried out by conveyor belts. However, the conveying angle of the conveyor belt is limited, or manual feeding is used. Manual feeding not only poses certain operational risks, but also easily causes intermittent raw material input, resulting in insufficient raw material replenishment. Summary of the Invention

[0005] The purpose of this invention is to provide a large-scale submerged arc furnace for producing metallic manganese. By utilizing a batching bin, different raw materials can be classified and stored. A batching pipe is installed at the bottom of the batching bin. During feeding, a telescopic rod extends the batching pipe into the interior of the submerged arc furnace, preventing raw material spillage. Simultaneously, an electronic feeding valve automatically controls the feeding amount. A lifting rod moves the batching bin back and forth on the slide rail of the conveyor frame, thereby achieving raw material replenishment. This invention solves the problems encountered in existing large-scale submerged arc furnaces for producing metallic manganese in ferroalloy smelting.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0007] This invention relates to a large-scale ferroalloy furnace for producing metallic manganese, comprising a furnace body, a shielding plate, a batching box, and a conveyor frame. A furnace door is fitted on the bottom periphery of the furnace body, and a furnace bottom is provided on the bottom side wall of the furnace body. A furnace cover is provided on the upper side wall of the furnace body, and a shielding plate is embedded in the center of the furnace cover. A connecting plate is provided on the outer side wall of the furnace body, and the outer wall of the furnace body is connected to the conveyor frame through the connecting plate. A batching box is installed on the top side wall of the furnace body.

[0008] The bottom of the mixing box is attached to a fixed plate, and the bottom side wall of the mixing box is welded with a support column. The bottom of the mixing box is embedded with a mixing pipe, the top of the mixing pipe is fitted with a pipe head, and the bottom of the mixing pipe is fitted with a pipe tail. An electronic feeding valve is installed on the side wall of the end of the pipe head. The side wall of the pipe tail is connected to the telescopic rod through a linkage plate. The pipe head and the pipe tail are connected by a pleated tube.

[0009] The bottom side wall of the conveyor frame is welded with a base, and the conveyor frame is embedded with a slide rail. The conveyor frame is connected to the mounting plate through the slide rail, and a material box is installed on the upper side wall of the mounting plate. The bottom side wall of the mounting plate is connected to the base through a lifting rod.

[0010] Furthermore, a groove is provided in the center of the furnace cover, and the groove is set in a disc shape. The furnace cover is connected to the shielding plate through the groove. One side wall of the shielding plate is rotatably connected to the furnace cover through a rotating shaft. Specifically, the shielding plate is set in a solid disc shape, and the other side wall of the rotating shaft on the shielding plate is attracted to the inner wall of the groove through an electromagnet.

[0011] Furthermore, a fixing sleeve is welded to the top side wall of the furnace cover, and the furnace cover is connected to the bottom of the support column through the fixing sleeve. There are five support columns in total, and the support columns are arranged in a ring array structure. Specifically, the fixing sleeve is a hollow hexagonal prism structure. The fixing sleeve can effectively limit the support column, thereby preventing the top batching box from shifting.

[0012] Furthermore, the batching box is equipped with two material chambers, and the bottom sidewalls of the two material chambers of the batching box are configured in a funnel shape. The internal chambers of the batching box are connected to the top feed port of the electric arc furnace body through the batching pipe; specifically, the batching box is configured in a funnel shape.

[0013] Furthermore, the feeding pipe consists of a pipe head, a pleated pipe, and a pipe tail. The pipe head and the pipe tail are connected by the pleated pipe. One end of the pipe tail is connected to the bottom side wall of the fixed plate by a telescopic rod. Specifically, the extension or retraction of the pleated pipe can be adjusted by the telescopic rod. Thus, when feeding materials, the pipe tail of the pleated pipe can be pulled into the interior of the electric arc furnace body by the telescopic rod, and when not feeding materials, the pleated pipe can be pulled back by the telescopic rod.

[0014] Furthermore, there are two connecting plates, and connecting blocks are sleeved at both ends of the connecting plates. The side walls at both ends of the connecting plates are connected to the outer wall of the electric arc furnace body and the rear side wall of the conveyor frame respectively through the connecting blocks. Specifically, the conveyor frame is set with an inclined structure, and the top curvature of the conveyor frame is set towards the batching box.

[0015] Furthermore, the conveyor frame is inlaid with two slide rails, and each slide rail is equipped with a mounting plate and a material box. The top of the rear wall of the material box near the main body of the electric arc furnace has a discharge port.

[0016] The present invention has the following beneficial effects:

[0017] 1. This invention, by setting up a batching box, allows for the classification and storage of different raw materials during use. The bottom of the batching box is equipped with a batching pipe, whose extension and retraction lengths can be automatically adjusted. During feeding, a telescopic rod causes the batching pipe to extend into the interior of the submerged arc furnace, feeding materials inside the furnace and preventing spillage. Simultaneously, an electronic feeding valve automatically controls the feeding amount. This solves the problem of existing large-scale submerged arc furnace production equipment for ferroalloy smelting, where the feeding process is difficult to control, requiring manual weighing and simultaneous addition of all raw materials. However, in the process of producing manganese, the different melting temperatures and times of the raw materials lead to variations in the degree and sequence of mixing, resulting in uneven material composition.

[0018] 2. This invention, by setting up a conveyor frame, is inclined and erected beside the main body of the submerged arc furnace. Simultaneously, a lifting rod allows the material box to move back and forth on the slide rails of the conveyor frame, thus achieving the effect of raw material replenishment. Furthermore, the material box can be flipped at the top bend of the conveyor frame, allowing the raw material to be fed into the batching box. This solves the problem of existing large-scale submerged arc furnace production equipment for ferroalloy smelting, which primarily uses conveyor belts for feeding materials. However, the conveyor belts have limited conveying angles, or manual feeding is used. Manual feeding not only poses certain operational risks but also easily leads to intermittent raw material input and insufficient replenishment. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 Schematic diagram of a large-scale submerged arc furnace for producing metallic manganese. Figure 1 ;

[0021] Figure 2 Schematic diagram of a large-scale submerged arc furnace for producing metallic manganese. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the main structure of a submerged arc furnace.

[0023] Figure 4 This is a structural diagram of the ingredient mixing box. Figure 1 ;

[0024] Figure 5 This is a schematic diagram of the conveyor frame structure;

[0025] Figure 6 This is a structural diagram of the ingredient mixing box. Figure 2 ;

[0026] Figure 7 This is an exploded view of the feed pipe structure.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Submerged arc furnace body; 2. Furnace door; 3. Furnace bottom; 4. Furnace cover; 401. Tray; 402. Fixing sleeve; 5. Baffle plate; 501. Rotating shaft; 6. Batching box; 601. Fixing plate; 602. Support column; 603. Batching pipe; 6031. Pipe head; 6032. Electronic feeding valve; 6033. Pleated pipe; 6034. Pipe tail; 6035. Linkage plate; 6036. Telescopic rod; 7. Connecting plate; 701. Connecting block; 8. Conveyor frame; 801. Base; 802. Slide rail; 803. Mounting plate; 804. Material box; 805. Lifting rod. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] Please see Figure 1-5 As shown, the present invention is a large-scale ferroalloy furnace for producing metallic manganese, including a ferroalloy furnace body 1, a shielding plate 5, a batching box 6, and a conveyor frame 8. A furnace door 2 is installed on the bottom side wall of the ferroalloy furnace body 1, and a furnace bottom 3 is provided on the bottom side wall of the ferroalloy furnace body 1. A furnace cover 4 is provided on the upper side wall of the ferroalloy furnace body 1, and a shielding plate 5 is embedded in the center of the furnace cover 4. A connecting plate 7 is provided on the outer side wall of the ferroalloy furnace body 1, and the outer wall of the ferroalloy furnace body 1 is connected to the conveyor frame 8 through the connecting plate 7. A batching box 6 is installed on the top side wall of the ferroalloy furnace body 1.

[0031] The bottom of the mixing box 6 is attached to a fixing plate 601, and the bottom side wall of the mixing box 6 is welded with a support column 602. The bottom of the mixing box 6 is embedded with a mixing pipe 603. The top of the mixing pipe 603 is sleeved with a pipe head 6031, and the bottom of the mixing pipe 603 is sleeved with a pipe tail 6034. An electronic feeding valve 6032 is installed on the end side wall of the pipe head 6031. The side wall of the pipe tail 6034 is connected to the telescopic rod 6036 through a linkage plate 6035. The pipe head 6031 and the pipe tail 6034 are connected by a pleated pipe 6033.

[0032] A base 801 is welded to the bottom side wall of the conveyor frame 8, and a slide rail 802 is embedded in the conveyor frame 8. The conveyor frame 8 is connected to the mounting plate 803 through the slide rail 802. A material box 804 is installed on the upper side wall of the mounting plate 803, and the bottom side wall of the mounting plate 803 is connected to the base 801 through a lifting rod 805.

[0033] Please see Figure 1-3 As shown, a groove 401 is provided in the center of the furnace cover 4, and the groove 401 is arranged in a disc shape. The furnace cover 4 is connected to the shielding plate 5 through the groove 401. One side wall of the shielding plate 5 is rotatably connected to the furnace cover 4 through a rotating shaft 501. Specifically, the shielding plate 5 is arranged in a solid disc shape, and the other side wall of the rotating shaft 501 on the shielding plate 5 is attracted to the inner wall of the groove 401 through an electromagnet.

[0034] Please see Figure 2 , 5 As shown, there are two connecting plates 7, and connecting blocks 701 are sleeved at both ends of the connecting plates 7. The side walls at both ends of the connecting plates 7 are connected to the outer wall of the electric arc furnace body 1 and the rear side wall of the conveying frame 8 respectively through the connecting blocks 701. Two slide rails 802 are embedded in the conveying frame 8, and each slide rail 802 is equipped with a mounting plate 803 and a material box 804. The top of the rear wall of the material box 804 near the electric arc furnace body 1 has a discharge port. Specifically, the conveying frame 8 is set with an inclined structure, and the top curvature of the conveying frame 8 is set towards the batching box 6.

[0035] Please see Figure 4 , 6As shown in Figure 7, a fixing sleeve 402 is welded to the top side wall of the furnace cover 4, and the furnace cover 4 is connected to the bottom of the support column 602 through the fixing sleeve 402. There are five support columns 602 in total, and the support columns 602 are arranged in a ring array structure. Specifically, the fixing sleeve 402 is a hollow hexagonal prism structure, which can effectively limit the support column 602, thereby preventing the top batching box 6 from shifting. The batching box 6 is provided with two material chambers. The bottom side walls of the two material chambers of the batching box 6 are funnel-shaped structures. The internal chambers of the batching box 6 are connected to the top of the electric arc furnace body 1 through the batching pipe 603. The feed inlet is connected; the feed pipe 603 consists of a pipe head 6031, a pleated pipe 6033, and a pipe tail 6034. The pipe head 6031 and the pipe tail 6034 are connected by the pleated pipe 6033. One end of the side wall of the pipe tail 6034 is connected to the bottom side wall of the fixed plate 601 by a telescopic rod 6036. Specifically, the extension or retraction of the pleated pipe 6033 can be adjusted by the telescopic rod 6036. Thus, when feeding materials, the pipe tail 6034 at the end of the pleated pipe 6033 can be pulled into the interior of the electric arc furnace body 1 by the telescopic rod 6036. When not feeding materials, the pleated pipe 6033 can be pulled back by the telescopic rod 6036.

[0036] The above are merely preferred embodiments of the present invention and do not limit the present invention. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present invention.

Claims

1. A large-scale submerged arc furnace for producing metallic manganese, comprising a furnace body (1), a baffle plate (5), a batching box (6), and a conveyor frame (8), characterized in that: A furnace door (2) is installed on the bottom periphery of the electric arc furnace body (1), and a furnace bottom (3) is provided on the bottom side wall of the electric arc furnace body (1). A furnace cover (4) is provided on the upper side wall of the electric arc furnace body (1). A shielding plate (5) is embedded in the center of the furnace cover (4). A connecting plate (7) is provided on the outer side wall of the electric arc furnace body (1), and the outer wall of the electric arc furnace body (1) is connected to the conveyor frame (8) through the connecting plate (7). A batching box (6) is installed on the top side wall of the electric arc furnace body (1). The bottom of the mixing box (6) is attached to a fixing plate (601), and the bottom side wall of the mixing box (6) is welded with a support column (602). The bottom of the mixing box (6) is inlaid with a mixing pipe (603). The top of the mixing pipe (603) is sleeved with a pipe head (6031), and the bottom of the mixing pipe (603) is sleeved with a pipe tail (6034). An electronic feeding valve (6032) is installed on the end side wall of the pipe head (6031). The side wall of the pipe tail (6034) is connected to the telescopic rod (6036) through a linkage plate (6035). The pipe head (6031) and the pipe tail (6034) are connected by a pleated pipe (6033). The bottom sidewall of the conveyor frame (8) is welded with a base (801), and a slide rail (802) is embedded in the conveyor frame (8). The conveyor frame (8) is connected to the mounting plate (803) through the slide rail (802). A material box (804) is installed on the upper sidewall of the mounting plate (803), and the bottom sidewall of the mounting plate (803) is connected to the base (801) through a lifting rod (805).

2. The large-scale submerged arc furnace manganese metal production apparatus as described in claim 1, characterized in that: The furnace cover (4) has a groove (401) at its center, and the groove (401) is a disc-shaped structure. The furnace cover (4) is connected to the shielding disc (5) through the groove (401). One side wall of the shielding disc (5) is rotatably connected to the furnace cover (4) through a rotating shaft (501).

3. The large-scale submerged arc furnace manganese metal production apparatus as described in claim 2, characterized in that: A fixing sleeve (402) is welded to the top side wall of the furnace cover (4), and the furnace cover (4) is connected to the bottom of the support column (602) through the fixing sleeve (402). There are five support columns (602) in total, and the support columns (602) are arranged in a ring array structure.

4. The large-scale submerged arc furnace manganese metal production apparatus as described in claim 1, characterized in that: The batching box (6) is provided with two material chambers. The bottom sidewalls of the two material chambers of the batching box (6) are arranged in a funnel shape. The internal chamber of the batching box (6) is connected to the top feed port of the electric arc furnace body (1) through the batching pipe (603).

5. The large-scale submerged arc furnace manganese metal production apparatus as described in claim 1, characterized in that: The dispensing tube (603) consists of a tube head (6031), a pleated tube (6033), and a tube tail (6034). The tube head (6031) and the tube tail (6034) are bonded together by the pleated tube (6033). One end of the tube tail (6034) is connected to the bottom side wall of the fixed plate (601) by a telescopic rod (6036).

6. The large-scale submerged arc furnace manganese metal production apparatus as described in claim 1, characterized in that: There are two connecting plates (7), and connecting blocks (701) are sleeved at both ends of the connecting plates (7). The side walls at both ends of the connecting plates (7) are connected to the outer wall of the electric arc furnace body (1) and the rear side wall of the conveyor frame (8) respectively through the connecting blocks (701).

7. The large-scale submerged arc furnace manganese metal production apparatus as described in claim 6, characterized in that: The conveyor frame (8) is inlaid with two slide rails (802), and each slide rail (802) is equipped with a mounting plate (803) and a material box (804). The material box (804) has a discharge port at the top of the rear wall of the side closest to the main body (1) of the electric arc furnace.

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