Submerged arc furnace device with long service life

Abstract

The utility model relates to the technical field of submerged arc furnaces, in particular to a long-service-life submerged arc furnace device which comprises a furnace body, a supporting cover on the lower portion of the furnace body is provided with a lower cover shell, discharging grooves are formed in the upper portion of the lower cover shell and are in butt joint with the side wall of the furnace body, and the three discharging grooves are distributed around the furnace body in a triangular shape at equal intervals. The outer wall of the furnace body is covered with an outer cover shell, an auxiliary ring pipe is arranged in the outer cover shell and arranged on the outer wall of the furnace body in a sleeving mode, an upper inlet pipe is integrally and fixedly arranged at the upper end of the auxiliary ring pipe, a lower inlet pipe is integrally arranged at the lower end of the auxiliary ring pipe, and the top of the furnace body is covered with a top cover. And a corresponding middle hole and a spare hole are formed in the surface of the top cover. According to the utility model, heat dissipation maintenance and rapid discharging are facilitated during use, so that the use is more convenient, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of submerged arc furnace technology, specifically to a long-life submerged arc furnace device. Background Technology

[0002] A submerged arc furnace, also known as an electric arc furnace or resistance furnace, is a crucial piece of equipment in metallurgy, chemical engineering, and other fields. It is primarily used for high-temperature smelting of raw materials such as ores, carbonaceous reducing agents, and solvents. Its working principle is based on electrothermal conversion. When an electric current passes through the electrodes of the submerged arc furnace, an electric arc is generated between the electrodes and the furnace charge, instantly releasing a large amount of heat and causing the furnace temperature to rise rapidly. Under this high-temperature environment, the minerals in the furnace charge undergo chemical reactions, typically reduction reactions of oxides, thereby reducing the metallic elements in the ore.

[0003] In response, Chinese patent application number CN202122865565.4 discloses a submerged arc furnace, including a submerged arc furnace body, a raw coal gas purification system, and a flue gas dust removal system. The raw coal gas purification system includes a purification pipe, a purification control valve, purification components, and a collection device. The purification pipe connects the submerged arc furnace body and the collection device. The purification control valve is installed on the purification pipe. The flue gas dust removal system includes a main exhaust pipe, a branch exhaust pipe, and a dust collector. The main exhaust pipe is connected to the submerged arc furnace body. A first control valve and a second control valve are sequentially installed on the main exhaust pipe in the direction away from the submerged arc furnace body. The branch exhaust pipe is connected to the main exhaust pipe and is located between the first and second control valves. A third control valve is installed on the branch exhaust pipe. The dust collector is connected to the end of the branch exhaust pipe away from the main exhaust pipe. A fan is connected to the end of the dust collector away from the branch exhaust pipe.

[0004] However, the existing equipment is inconvenient for heat dissipation maintenance and rapid material discharge during use, which affects the performance and service life.

[0005] Therefore, in order to solve the above problems, a long-life submerged arc furnace device is proposed. Summary of the Invention

[0006] The purpose of this utility model is to provide a long-life submerged arc furnace device to solve the problems mentioned in the background art, such as the inconvenience of heat dissipation maintenance and rapid material discharge during use, which affect the performance and service life.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a long-life submerged arc furnace device, comprising a furnace body, a lower cover provided on the lower part of the furnace body, and a discharge chute provided above the lower cover. The discharge chute is connected to the side wall of the furnace body, and three sets of discharge chute are triangularly and equidistantly distributed around the furnace body. An outer cover is provided on the outer wall of the furnace body, and an auxiliary ring pipe is provided inside the outer cover. The auxiliary ring pipe is sleeved on the outer wall of the furnace body. An upper inlet pipe is integrally fixed at the upper end of the auxiliary ring pipe, and a lower inlet pipe is integrally provided at the lower end of the auxiliary ring pipe. A top cover is provided on the top of the furnace body, and the surface of the top cover is provided with corresponding central holes and spare holes.

[0008] As a further step of this solution, the auxiliary ring tube has a spiral structure that wraps around the furnace body from top to bottom, and the inner side of the auxiliary ring tube near the furnace body sidewall is slightly thinner than the outer side of the auxiliary ring tube away from the furnace body sidewall.

[0009] As a further step of this solution, the outer end of the upper inlet pipe is sequentially equipped with a temperature detection component one, a pressure transmitter one, and a valve one, and the outer end of the upper inlet pipe is also equipped with a temperature detection component two, a pressure transmitter two, and a valve two.

[0010] As a further step in this solution, the first temperature detection component is located on the side of the upper inlet pipe near the auxiliary ring pipe, and the first pressure transmitter is located between the first valve and the first temperature detection component. The second pressure transmitter is located on the side of the lower inlet pipe near the auxiliary ring pipe, and the second temperature detection component is located between the second pressure transmitter and the second valve. Each of the first, second, first and second temperature detection components, and first and second pressure transmitters is provided with a mounting bracket below it. The two types of mounting brackets are respectively threadedly connected to the outer end pipes of the upper and lower inlet pipes. The first, second, first and second temperature detection components, first and second pressure transmitters are all threadedly inserted and mounted on the top of their respective mounting brackets.

[0011] As a further step of this solution, the outer shell is in the form of four halves, and the side walls of the outer shell are provided with corresponding side strips. Two sets of adjacent side strips are assembled by bolts. Support strips are fixed at the top and bottom of the outer shell, and corresponding upper ring plates and lower ring plates are fixed at the upper and lower outer walls of the furnace body, respectively. The support strips are assembled and fastened to the upper ring plates and lower ring plates by bolts.

[0012] As a further step of this solution, a heat insulation cover is provided between the outer casing and the auxiliary ring pipe. The heat insulation cover is in the form of two halves that surround and wrap around the outer wall of the auxiliary ring pipe. Both the side wall of the heat insulation cover and the side wall of the outer casing are provided with assembly grooves corresponding to the upper inlet pipe and the lower inlet pipe.

[0013] As a further step of this solution, the side wall of the furnace body is provided with a discharge port corresponding to the discharge trough, and all three sets of discharge troughs are set at an angle.

[0014] Compared with the prior art, the advantages of this utility model are: this utility model facilitates heat dissipation maintenance and rapid material discharge during use, making it more convenient to use and helping to extend its service life;

[0015] This utility model, by incorporating an outer casing and auxiliary ring pipe, facilitates the connection of corresponding pipes and pumps with the upper and lower inlet pipes for circulating water and gas supply during use. This allows the high-temperature heat from the furnace sidewalls to be carried away during circulation, facilitating heat dissipation from the furnace sidewalls and thus improving subsequent use and extending service life. Furthermore, the outer casing facilitates external maintenance, making operation more convenient and safer. This design enhances the convenience and practicality of long-life submerged arc furnace devices.

[0016] This utility model, by setting up a feeding chute, with three sets of feeding chute, makes it easy to feed material through a multi-hole channel when the furnace body is being fed. In addition, with the cooperation of the unblocking machine, it is easy to feed material quickly and is less likely to cause blockage, making it more convenient and efficient to use. This design improves the convenience and practicality of the long-life electric arc furnace device. Attached Figure Description

[0017] Figure 1 This is a frontal perspective three-dimensional schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a top-view perspective view of the overall structure of this utility model;

[0019] Figure 3 This is a side view of the exploded three-dimensional assembly of the structure of this utility model;

[0020] Figure 4 This is a three-dimensional side view of a partial structure of the auxiliary ring tube of this utility model;

[0021] In the diagram: 100, Furnace body; 101, Upper ring plate; 102, Lower ring plate; 110, Lower cover; 120, Discharge chute; 121, Discharge port; 130, Outer cover; 131, Side strip; 132, Support strip; 133, Assembly slot; 140, Auxiliary ring pipe; 141, Upper inlet pipe; 142, Lower inlet pipe; 150, Insulated cover; 160, Top cover; 161, Central hole; 162, Spare hole; 170, Temperature detection component one; 171, Temperature detection component two; 172, Mounting bracket; 180, Pressure transmitter one; 181, Pressure transmitter two; 190, Valve one; 191, Valve two. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 One embodiment provided by this utility model:

[0024] A long-life submerged arc furnace device includes a furnace body 100. The lower part of the furnace body 100 is supported by a lower cover 110, and a discharge chute 120 is provided above the lower cover 110. The discharge chute 120 is connected to the side wall of the furnace body 100, and three sets of discharge chute 120 are distributed in a triangular shape at equal intervals around the furnace body 100. The outer wall of the furnace body 100 is covered by an outer cover 130. An auxiliary ring pipe 140 is provided inside the outer cover 130. The auxiliary ring pipe 140 is sleeved on the outer wall of the furnace body 100. An upper inlet pipe 141 is integrally fixed at the upper end of the auxiliary ring pipe 140, and a lower inlet pipe 142 is integrally provided at the lower end of the auxiliary ring pipe 140. The top of the furnace body 100 is covered by a top cover 160, and the surface of the top cover 160 is provided with a corresponding central hole 161 and a spare hole 162.

[0025] As described in more detail in this embodiment, the auxiliary ring tube 140 has a spiral structure that wraps around the furnace body 100 from top to bottom, and the inner side of the auxiliary ring tube 140 near the side wall of the furnace body 100 is slightly thinner than the outer side of the auxiliary ring tube 140 away from the side wall of the furnace body 100. This makes it easier to guide the heat dissipation medium to wrap around the outer wall of the furnace body 100 from top to bottom during use, making subsequent use more convenient and efficient.

[0026] As described in more detail in this embodiment, the outer end of the upper inlet pipe 141 is sequentially equipped with a temperature detection component 170, a pressure transmitter 180, and a valve 190. The outer end of the upper inlet pipe 141 is also equipped with a second temperature detection component 171, a second pressure transmitter 181, and a second valve 191. This facilitates opening and closing as needed during use, and also facilitates monitoring the temperature and pressure of the inlet and outlet media, ensuring safe use in the future.

[0027] In a more detailed embodiment, temperature sensing component 170 is located on the side of the upper inlet pipe 141 near the auxiliary ring pipe 140, and pressure transmitter 180 is located between valve 190 and temperature sensing component 170. Pressure transmitter 181 is located on the side of the lower inlet pipe 142 near the auxiliary ring pipe 140, and temperature sensing component 171 is located between pressure transmitter 181 and valve 191. Temperature sensing component 170, temperature sensing component 171, pressure transmitter 180, and pressure transmitter 191 are all located in this embodiment. Each of the two types of mounting brackets 172 is provided below the transmitter 181. The two types of mounting brackets 172 are threadedly connected to the outer end pipes of the upper inlet pipe 141 and the lower inlet pipe 142, respectively. Temperature detection component 170, temperature detection component 2 171, pressure transmitter 180 and pressure transmitter 2 181 are all threadedly inserted and mounted on the corresponding mounting brackets 172. In this way, it is convenient to insert and assemble according to the needs of use, and the pressure is detected first and then the temperature is detected when using the transmitter, making it more convenient and safe to use.

[0028] As described in more detail in this embodiment, the outer casing 130 is in the form of four halves, and the side walls of the outer casing 130 are provided with corresponding side strips 131. Two sets of adjacent side strips 131 are assembled by bolts. Support strips 132 are fixedly provided on both the upper and lower parts of the outer casing 130. The upper and lower outer walls of the furnace body 100 are respectively fixed with corresponding upper ring plates 101 and lower ring plates 102. The support strips 132 are respectively assembled and fastened to the upper ring plates 101 and lower ring plates 102 by bolts. In this way, it is easy to quickly disassemble and assemble during use, making subsequent use and maintenance more convenient.

[0029] As described in more detail in this embodiment, a heat insulation cover 150 is provided between the outer cover 130 and the auxiliary ring pipe 140. The heat insulation cover 150 is enclosed in two halves around the outer wall of the auxiliary ring pipe 140. Both the side wall of the heat insulation cover 150 and the side wall of the outer cover 130 are provided with mounting grooves 133 corresponding to the upper inlet pipe 141 and the lower inlet pipe 142. In this way, it is convenient to provide heat insulation protection for the auxiliary ring pipe 140 during use, and it is also convenient to fit the upper inlet pipe 141 and the lower inlet pipe 142, making it more convenient to use.

[0030] As described in more detail in this embodiment, the side wall of the furnace body 100 is provided with a discharge port 121 corresponding to the discharge trough 120, and all three sets of discharge troughs 120 are inclined. In this way, it is convenient to discharge materials quickly as needed and prevent blockage during use, and it is also convenient to operate the unblocking machine.

[0031] Working principle: During use, the system is connected through pipes, pumps, and water tanks via a water source, forming a closed loop between the pump, pipes, water tank, and auxiliary ring pipe 140. The spiral arrangement facilitates heat dissipation and maintenance of the furnace body 100's sidewalls. The three sets of discharge troughs 120 facilitate rapid material discharge and allow for easy opening and closing of multiple opening and closing machines, making operation more convenient and efficient. This enhances safety and extends the furnace's service life. Operation concludes here.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A long-life submerged arc furnace device, comprising a furnace body (100), characterized in that: The furnace body (100) is supported by a lower cover (110), and a feeding trough (120) is provided above the lower cover (110). The feeding trough (120) is connected to the side wall of the furnace body (100), and three sets of feeding troughs (120) are distributed in a triangular shape at equal intervals around the furnace body (100). The outer wall of the furnace body (100) is covered with an outer cover (130), and an auxiliary ring pipe (140) is provided inside the outer cover (130). The auxiliary ring pipe (140) is sleeved on the outer wall of the furnace body (100). An upper inlet pipe (141) is integrally fixed at the upper end of the auxiliary ring pipe (140), and a lower inlet pipe (142) is integrally provided at the lower end of the auxiliary ring pipe (140). The top of the furnace body (100) is covered with a top cover (160), and a corresponding central hole (161) and a spare hole (162) are opened on the surface of the top cover (160).

2. The long-life submerged arc furnace device according to claim 1, characterized in that: The auxiliary ring tube (140) has a spiral structure that runs from top to bottom, and the inner side of the auxiliary ring tube (140) near the side wall of the furnace body (100) is slightly thinner than the outer side of the auxiliary ring tube (140) away from the side wall of the furnace body (100).

3. The long-life submerged arc furnace device according to claim 1, characterized in that: The upper inlet pipe (141) is sequentially equipped with a temperature detection component one (170), a pressure transmitter one (180) and a valve one (190), and the upper inlet pipe (141) is also equipped with a temperature detection component two (171), a pressure transmitter two (181) and a valve two (191).

4. The long-life submerged arc furnace device according to claim 3, characterized in that: The first temperature sensing component (170) is located on the side of the upper inlet pipe (141) near the auxiliary ring pipe (140), and the first pressure transmitter (180) is located between the first valve (190) and the first temperature sensing component (170). The second pressure transmitter (181) is located on the side of the lower inlet pipe (142) near the auxiliary ring pipe (140), and the second temperature sensing component (171) is located between the second pressure transmitter (181) and the second valve (191). The first temperature sensing component (170), the second temperature transmitter (181), the second pressure transmitter (181), the second pressure transmitter (191), the second pressure transmitter (18 ... Each of the temperature detection component 2 (171), pressure transmitter 1 (180), and pressure transmitter 2 (181) is provided with a mounting bracket (172). The two mounting brackets (172) are respectively threadedly connected to the outer end pipes of the upper inlet pipe (141) and the lower inlet pipe (142). The temperature detection component 1 (170), temperature detection component 2 (171), pressure transmitter 1 (180), and pressure transmitter 2 (181) are all threadedly inserted and mounted on the corresponding mounting bracket (172).

5. The long-life submerged arc furnace device according to claim 1, characterized in that: The outer shell (130) is in the form of four halves, and the side walls of the outer shell (130) are provided with corresponding side strips (131), and two sets of adjacent side strips (131) are assembled by bolts. The outer shell (130) is fixed with support strips (132) on both the upper and lower sides, and the upper and lower outer walls of the furnace body (100) are respectively fixed with corresponding upper ring plates (101) and lower ring plates (102), and the support strips (132) are respectively assembled and fastened to the upper ring plates (101) and lower ring plates (102) by bolts.

6. The long-life submerged arc furnace device according to claim 1, characterized in that: A heat insulation cover (150) is provided between the outer cover (130) and the auxiliary ring pipe (140). The heat insulation cover (150) is wrapped around the outer wall of the auxiliary ring pipe (140) in two halves. Both the side wall of the heat insulation cover (150) and the side wall of the outer cover (130) are provided with assembly grooves (133) corresponding to the upper inlet pipe (141) and the lower inlet pipe (142).

7. The long-life submerged arc furnace device according to claim 1, characterized in that: The furnace body (100) has a discharge port (121) on its side wall corresponding to the discharge trough (120), and all three discharge troughs (120) are inclined.

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