Closed silicon manganese ore heating furnace with electrode shielding cover structure

Abstract

The utility model discloses a closed silicon manganese submerged arc furnace with an electrode shielding cover structure, which comprises a submerged arc furnace body, a furnace cover is arranged at the upper end of the submerged arc furnace body, two sides of the outer side wall of the furnace cover are fixedly communicated with smoke exhaust pipes, one ends of the two smoke exhaust pipes are fixedly communicated with cleaning pipes, and the other ends of the two smoke exhaust pipes are fixedly communicated with the electrode shielding cover structure. And one sides of the two cleaning pipes fixedly communicate with smoke exhaust pipes, and the inner walls of the two smoke exhaust pipes are slidably connected with filter screens. Smoke entering the smoke exhaust pipe is filtered through the filter screen, so that smoke dust is only accumulated on the inner wall of the cleaning pipe, when a large amount of smoke dust is accumulated, the driving device is started to enable the scraper to slide in the cleaning pipe, and the scraper scrapes the dust on the inner wall of the cleaning pipe to fall to the bottom of the cleaning pipe. And dust is discharged from the cleaning pipe by rotating the fixed cover, so that the smoke exhaust pipeline is cleaned, the structure is simple, the operation is convenient, the cleaning time can be shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon-manganese alloy production equipment, in particular to a closed silicon-manganese ore furnace with an electrode shielding cover structure. Background Art

[0002] Silicon manganese alloy is mainly composed of manganese, silicon, iron and other elements, and also contains a small amount of carbon, phosphorus, sulfur and other elements. The consumption of this alloy occupies an important position in the electric furnace ferroalloy products. It is an indispensable composite deoxidizer and alloying agent in the steel industry. When producing silicon manganese alloy, a closed silicon manganese ore furnace is required.

[0003] In the prior art, for example, Chinese patent CN219934679U discloses an electric arc furnace, including an electric arc furnace waste heat recovery device, a furnace shell, a furnace hood covering the furnace shell, and a smoke exhaust device sealed and connected to the furnace hood. The electric arc furnace waste heat recovery device includes an evaporator installed in the furnace hood and a deaerator, a feed water pump, a steam drum, and a circulating water pump arranged outside the electric arc furnace. The deaerator, the feed water pump, and the evaporator are connected in sequence through pipelines to form a first water inlet path, the steam drum, the circulating water pump, and the evaporator are connected in sequence through pipelines to form a second water inlet path, and the evaporator and the steam drum are connected through pipelines to form a steam path.

[0004] At present, when most silicon-manganese ore-fired furnaces are used for a long time, a lot of dust accumulates in their exhaust ducts, resulting in a smaller volume inside the exhaust duct, so the exhaust duct needs to be cleaned. However, the existing exhaust duct lines are long, so the cleaning time is long, which affects the production of manganese-silicon alloy by the ore-fired furnace. Utility Model Content

[0005] The utility model aims to provide a closed silicon-manganese ore furnace with an electrode shielding cover structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a closed silicon manganese ore furnace with an electrode shielding cover structure, comprising an ore furnace body, a furnace cover is arranged on the upper end of the ore furnace body, both sides of the outer wall of the furnace cover are fixedly connected with smoke exhaust pipes, one end of the two smoke exhaust pipes are fixedly connected with a cleaning pipe, one side of the two cleaning pipes are fixedly connected with a smoke exhaust pipe, the inner walls of the two smoke exhaust pipes are slidably connected with a filter screen, the upper ends of the two cleaning pipes are fixedly installed with a driving device, the output ends of the two driving devices are drivingly connected with a threaded rod, the outer walls of the two threaded rods are threadedly connected with a scraper, the inner walls of the two cleaning pipes are fixedly connected with a guide bar, and the outer walls of the two guide bars are respectively slidably connected to one side of the two scrapers.

[0007] As a further preferred embodiment of the present technical solution, a plurality of sealing positioning holes are opened at the upper end of the electric arc furnace body, a plurality of sealing positioning pins are fixedly connected to the lower end of the furnace cover, and the outer side walls of the plurality of sealing positioning pins are respectively slidably engaged with the inner walls of the plurality of sealing positioning holes.

[0008] As a further preferred embodiment of the present technical solution, a plurality of electrode bodies are fixedly installed in the middle of the upper end of the furnace cover, a thread groove is opened on one side of the outer side wall of the plurality of electrode bodies, and a protective shielding cover is threadedly connected to the outer side wall of the plurality of thread grooves.

[0009] As a further preferred embodiment of the present technical solution, one side of the upper end of the furnace cover is fixedly connected to a plurality of safety explosion-proof cylinders, the inner tops of the plurality of safety explosion-proof cylinders are fixedly connected to sliding rods, the outer sides of the plurality of sliding rods are slidably connected to valve flaps, the outer sides of the plurality of sliding rods are sleeved with return springs, one end of the plurality of return springs is respectively fixedly connected to one side of the upper ends of the plurality of valve flaps, and one side of the plurality of safety explosion-proof cylinders is fixedly connected to a pressure relief pipe.

[0010] As a further preferred embodiment of the present technical solution, the other side of the upper end of the furnace cover is fixedly connected with a feed pipe.

[0011] As a further preferred embodiment of the present technical solution, an operation inspection door is provided on one side of the safety explosion-proof cylinder, and one side of the operation inspection door is rotatably connected to one side of the furnace cover.

[0012] As a further preferred embodiment of the present technical solution, a fixing cover is threadedly connected to the middle portion of the lower end of the two cleaning pipes.

[0013] The utility model provides a closed silicon-manganese ore furnace with an electrode shielding cover structure, which has the following beneficial effects:

[0014] (1) The utility model filters the smoke entering the smoke exhaust pipe through the filter net, so that the smoke dust will only accumulate on the inner wall of the cleaning pipe. When the accumulation is large, the driving device is turned on to make the scraper slide in the cleaning pipe. The scraper scrapes the dust on the inner wall of the cleaning pipe and drops it to the bottom of the cleaning pipe. The fixed cover is rotated to discharge the dust from the cleaning pipe, thereby realizing the cleaning of the smoke exhaust pipe. This structure is simple and easy to operate, which can reduce the cleaning time and improve production efficiency.

[0015] (2) The utility model realizes automatic pressure relief of the submerged arc furnace body by pushing the valve disc when the pressure inside the submerged arc furnace body is relatively high during the production of silicon manganese alloy, and the return spring is slowly deformed. When the gas pushes to the position of the pressure relief pipe, the gas is discharged from the pressure relief pipe, thereby preventing the main equipment inside the submerged arc furnace body from being damaged due to high pressure inside the submerged arc furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection between the ore-fired furnace body and the furnace cover in the utility model;

[0018] Figure 3 This is a schematic diagram of the connection relationship between the electrode body and the protective shielding cover in the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the safety explosion-proof cylinder in the utility model;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the cleaning tube in the utility model;

[0021] In the figure: 1. Submerged arc furnace body; 2. Furnace cover; 3. Operation and maintenance door; 4. Safety explosion-proof cylinder; 5. Electrode body; 6. Feeding pipe; 7. Smoke exhaust pipe; 8. Cleaning pipe; 9. Smoke exhaust pipe; 10. Driving device; 11. Sealing positioning hole; 12. Sealing positioning pin; 13. Protective shielding cover; 14. Threaded groove; 15. Valve disc; 16. Sliding rod; 17. Reset spring; 18. Pressure relief pipe; 19. Filter screen; 20. Threaded rod; 21. Scraper; 22. Guide strip; 23. Fixed cover. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The utility model provides a technical solution: Figure 1 - Figure 5As shown, in this embodiment, a closed silicon-manganese ore furnace with an electrode shielding cover structure includes an ore furnace body 1, characterized in that: a furnace cover 2 is arranged at the upper end of the ore furnace body 1, and both sides of the outer wall of the furnace cover 2 are fixedly connected with smoke exhaust pipes 7, one end of the two smoke exhaust pipes 7 are fixedly connected with a cleaning pipe 8, one side of the two cleaning pipes 8 are fixedly connected with a smoke exhaust pipe 9, the inner walls of the two smoke exhaust pipes 9 are slidably connected with a filter screen 19, the upper ends of the two cleaning pipes 8 are fixedly installed with a driving device 10, the output ends of the two driving devices 10 are drivingly connected with a threaded rod 20, and the two threaded rods The outer wall of 20 is threadedly connected with a scraper 21, and the inner walls of the two cleaning pipes 8 are fixedly connected with a guide bar 22. The outer walls of the two guide bars 22 are slidably connected to one side of the two scrapers 21 respectively, and the smoke entering the smoke exhaust pipe 9 is filtered through the filter net 19, so that the smoke dust will only accumulate on the inner wall of the cleaning pipe 8. When the accumulation is large, the driving device 10 is turned on to make the scraper 21 slide in the cleaning pipe 8, and the scraper 21 scrapes off the dust on the inner wall of the cleaning pipe 8, thereby cleaning the smoke exhaust pipe. This structure is simple and easy to operate, which can reduce the cleaning time and improve production efficiency.

[0024] like Figure 1 and Figure 2 As shown, a plurality of sealing positioning holes 11 are opened at the upper end of the electric arc furnace body 1, and a plurality of sealing positioning pins 12 are fixedly connected to the lower end of the furnace cover 2. The outer walls of the plurality of sealing positioning pins 12 are respectively slidably engaged with the inner walls of the plurality of sealing positioning holes 11. Through the structural design of the sealing positioning holes 11 and the sealing positioning pins 12, the furnace cover 2 and the electric arc furnace body 1 can be quickly positioned during installation to improve the installation efficiency.

[0025] like Figure 1 - Figure 3 As shown, a plurality of electrode bodies 5 are fixedly installed in the middle of the upper end of the furnace cover 2, and a threaded groove 14 is opened on one side of the outer side wall of the plurality of electrode bodies 5. The outer side walls of the plurality of threaded grooves 14 are threadedly connected with a protective shielding cover 13. The protective shielding cover 13 can prevent external electromagnetic interference, radiation, microwave and other signals from having adverse effects on the electrode body 5, and can also prevent the internal signal generated by the electrode body 5 from interfering with the outside world.

[0026] like Figure 1 , Figure 2 and Figure 4As shown, one side of the upper end of the furnace cover 2 is fixedly connected with multiple safety explosion-proof cylinders 4, the inner tops of the multiple safety explosion-proof cylinders 4 are fixedly connected with sliding rods 16, the outer walls of the multiple sliding rods 16 are slidably connected with valve flaps 15, the outer walls of the multiple sliding rods 16 are sleeved with reset springs 17, one ends of the multiple reset springs 17 are respectively fixedly connected to one side of the upper ends of the multiple valve flaps 15, and one side of the multiple safety explosion-proof cylinders 4 is fixedly connected with a pressure relief pipe 18. When the pressure in the mineral arc furnace body 1 is relatively high during the production of silicon manganese alloy, the gas pushes the valve flap 15, and the reset spring 17 is slowly deformed. When the gas is pushed to the position of the pressure relief pipe 18, the gas is discharged from the pressure relief pipe 18, thereby realizing automatic pressure relief of the mineral arc furnace body 1, preventing the high pressure in the mineral arc furnace body 1 from causing damage to the main equipment in the mineral arc furnace body 1.

[0027] like Figure 1 and Figure 2 As shown, the other side of the upper end of the furnace cover 2 is fixedly connected with a feed pipe 6, through which the produced raw materials can be added into the submerged arc furnace body 1 to produce silicon manganese alloy.

[0028] like Figure 1 and Figure 2 As shown, an operation inspection door 3 is provided on one side of the safety explosion-proof cylinder 4, and one side of the operation inspection door 3 is rotatably connected to one side of the furnace cover 2. The equipment in the ore-fired furnace body 1 can be repaired through the operation inspection door 3.

[0029] like Figure 1 , Figure 2 and Figure 5 As shown, the middle parts of the lower ends of the two cleaning pipes 8 are both threadedly connected with fixed covers 23, and the dust scraped off the inner walls of the cleaning pipes 8 can be discharged from the cleaning pipes 8 by rotating the fixed covers 23.

[0030] The utility model provides a closed silicon-manganese ore furnace with an electrode shielding cover structure, and the specific working principle is as follows:

[0031] When producing silicon-manganese alloy, firstly, the raw material is added into the submerged arc furnace body 1 through the feed pipe 6, and then the electrode body 5 is opened to heat the submerged arc furnace body 1. During the production process, when the pressure in the submerged arc furnace body 1 is relatively high, the gas pushes the valve flap 15, and the reset spring 17 is slowly deformed. When the gas is pushed to the position of the pressure relief pipe 18, the gas is discharged from the pressure relief pipe 18, and the submerged arc furnace body 1 is automatically depressurized. At the same time, the flue gas in the production process enters the cleaning pipe 8 and the smoke exhaust pipe 9 through the smoke exhaust pipe 7. When the smoke passes through the filter 19, the filter 19 filters the dust. After the silicon-manganese alloy is produced, the silicon-manganese alloy is taken out from the submerged arc furnace body 1. When it is used for a long time and there is a lot of dust accumulated in the cleaning pipe 8, the driving device 10 is opened to make the scraper 21 slide in the cleaning pipe 8. The scraper 21 scrapes the dust on the inner wall of the cleaning pipe 8 and falls to the bottom of the cleaning pipe 8. Then the fixed cover 23 is rotated to discharge the dust from the cleaning pipe 8, thereby cleaning the smoke exhaust pipe.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A closed silicon-manganese ore furnace with an electrode shielding cover structure, comprising an ore furnace body (1), characterized in that: A furnace cover (2) is provided at the upper end of the ore-heating furnace body (1), and both sides of the outer wall of the furnace cover (2) are fixedly connected with smoke exhaust pipes (7), one end of the two smoke exhaust pipes (7) is fixedly connected with a cleaning pipe (8), one side of the two cleaning pipes (8) is fixedly connected with a smoke exhaust pipe (9), the inner walls of the two smoke exhaust pipes (9) are slidably connected with a filter screen (19), the upper ends of the two cleaning pipes (8) are fixedly installed with a driving device (10), the output ends of the two driving devices (10) are drivingly connected with a threaded rod (20), the outer walls of the two threaded rods (20) are threadedly connected with a scraper (21), the inner walls of the two cleaning pipes (8) are fixedly connected with a guide bar (22), and the outer walls of the two guide bars (22) are respectively slidably connected to one side of the two scrapers (21).

2. The closed silicon-manganese ore furnace with an electrode shielding cover structure according to claim 1, characterized in that: A plurality of sealing positioning holes (11) are provided at the upper end of the ore-fired furnace body (1), a plurality of sealing positioning pins (12) are fixedly connected to the lower end of the furnace cover (2), and the outer side walls of the plurality of sealing positioning pins (12) are respectively slidably engaged with the inner walls of the plurality of sealing positioning holes (11).

3. The closed silicon-manganese ore furnace with an electrode shielding cover structure according to claim 1, characterized in that: A plurality of electrode bodies (5) are fixedly mounted at the middle of the upper end of the furnace cover (2), a thread groove (14) is provided on one side of the outer side wall of the plurality of electrode bodies (5), and a protective shielding cover (13) is threadedly connected to the outer side wall of the plurality of thread grooves (14).

4. The closed silicon-manganese ore furnace with an electrode shielding cover structure according to claim 1, characterized in that: One side of the upper end of the furnace cover (2) is fixedly connected to a plurality of safety explosion-proof cylinders (4), the inner tops of the plurality of safety explosion-proof cylinders (4) are fixedly connected to sliding rods (16), the outer walls of the plurality of sliding rods (16) are slidably connected to valve flaps (15), the outer walls of the plurality of sliding rods (16) are sleeved with return springs (17), one end of the plurality of return springs (17) is respectively fixedly connected to one side of the upper ends of the plurality of valve flaps (15), and one side of the plurality of safety explosion-proof cylinders (4) is fixedly connected to a pressure relief pipe (18).

5. The closed silicon-manganese ore furnace with an electrode shielding cover structure according to claim 1, characterized in that: The other side of the upper end of the furnace cover (2) is fixedly connected to a feed pipe (6).

6. The closed silicon-manganese ore furnace with an electrode shielding cover structure according to claim 4, characterized in that: An operation inspection door (3) is provided on one side of the safety explosion-proof cylinder (4), and one side of the operation inspection door (3) is rotatably connected to one side of the furnace cover (2).

7. The closed silicon-manganese ore furnace with an electrode shielding cover structure according to claim 1, characterized in that: The middle parts of the lower ends of the two cleaning pipes (8) are both threadedly connected with a fixing cover (23).

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