Submerged arc furnace hot air pipeline

Abstract

The utility model relates to the technical field of submerged arc furnace accessories, in particular to a submerged arc furnace hot air pipeline which comprises a heating box, a main output straight pipe, an annular pipe and an L-shaped branch pipe. A suction fan is mounted in the air inlet through a mounting seat, an electric heater is mounted on one side of the heating box through a mounting groove, and a temperature controller is mounted at one end of the electric heater through a screw; an output port of the heating box is connected with an annular pipe through a main output straight pipe, L-shaped branch pipes are arranged at the bottom of the annular pipe at equal intervals in a communicating mode, and output ports of the L-shaped branch pipes are connected with air spraying heads. The novel submerged arc furnace hot air pipeline achieves conveying through the pipeline after constant-temperature heating, the heat insulation effect of the pipeline is remarkable, heat loss is avoided, the energy-saving effect is achieved, and the novel submerged arc furnace hot air pipeline is suitable for wide application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of submerged arc furnace accessories, in particular to a submerged arc furnace hot air duct. Background Art

[0002] A submerged arc furnace is an industrial electric furnace used for smelting metals. Its working principle is to insert electrodes into the charge and melt the charge through electric arc or resistance heating. Submerged arc furnaces usually use carbon or American refractory materials as furnace linings and adopt self-heating electrode submerged arc operation. The energy of the electric arc and the current generate heat through the resistance of the charge to melt the metal. The submerged arc furnace needs to transport hot air through hot air ducts to improve the use effect of the submerged arc furnace.

[0003] The existing hot air duct of the submerged arc furnace cannot be heated at a constant temperature and then transported through the duct. The heat insulation effect of the duct is poor and heat loss is easy to occur. Therefore, a hot air duct of the submerged arc furnace is proposed. The hot air duct of the submerged arc furnace can be heated at a constant temperature and then transported through the duct. The heat insulation effect of the duct is significant, heat loss is avoided, and energy saving is achieved. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a hot air duct for a mineral arc furnace, which is heated at a constant temperature and then transported through the duct. The duct has a significant thermal insulation effect, avoids heat loss, and achieves an energy-saving effect.

[0005] The technical solution adopted by the utility model to solve the technical problem is a hot air duct of a mineral heating furnace, comprising a heating box, a main output straight pipe, a ring pipe and an L-shaped branch pipe, an air inlet assembly is arranged at one end of the top of the heating box, and the air inlet assembly comprises an air inlet installed on the heating box by screws, a suction fan is installed in the air inlet through a mounting seat, an electric heater is installed on one side of the heating box through a mounting groove, and a thermostat is installed on one end of the electric heater by screws;

[0006] The output port of the heating box is connected to the annular tube through a main output straight tube, and an L-shaped branch tube is equidistantly connected to the bottom of the annular tube. The output port of the L-shaped branch tube is connected to the nozzle. The outer sides of the main output straight tube, the annular tube and the L-shaped branch tube are respectively sleeved with a main output straight tube sleeve, annular tube sleeve and L-shaped branch tube sleeve. The main output straight tube sleeve, annular tube sleeve and L-shaped branch tube sleeve are all made of polyurethane material.

[0007] By adopting the above technical solution, the electric heater and the suction fan are turned on, the suction fan blows the outside air into the heating box, the electric heater is used to quickly heat the gas in the heating box, and the thermostat controls the electric heater to perform constant temperature heating, and the generated hot air enters the annular pipe through the main output straight pipe, and finally dispersed into the furnace cavity of the submerged arc furnace through the L-shaped branch pipe, thereby improving the use effect;

[0008] The main output straight pipe sleeve, annular pipe sleeve and L-shaped branch pipe sleeve are all made of polyurethane material, which has significant thermal insulation effect, avoids heat loss and achieves energy-saving effect.

[0009] Specifically, the detection end of the temperature controller and the heating end of the electric heater are both located in the heating box, and the output end of the temperature controller and the input end of the electric heater are electrically connected via a wire.

[0010] By adopting the above technical solution, the gas in the heating box is quickly heated by the electric heater, and the temperature controller controls the electric heater to perform constant temperature heating.

[0011] Specifically, a sealing mesh cover is installed on the top of the air inlet by screws.

[0012] Specifically, a control valve is provided at one end of the main output straight pipe.

[0013] Specifically, a mounting base plate is provided at the bottom of the heating box and mounting bolts are provided at the corners of the mounting base plate.

[0014] By adopting the above technical solution, the heating box is fixed to the bracket on one side of the furnace body by using the mounting bolts on the mounting bottom plate.

[0015] Specifically, a UPS power supply is provided at one end of the heating box through a snap-fit ​​sleeve, and an output end of the UPS power supply is electrically connected to input ends of the suction fan and the electric heater through a wire.

[0016] Beneficial effects of the utility model:

[0017] (1) The utility model discloses a hot air duct of an ore-heating furnace, wherein an annular pipe sleeve is arranged on the ore-heating furnace body and L-shaped branch pipes are evenly distributed on the outside, the nozzle of the L-shaped branch pipe is located in the furnace cavity, and the heating box is fixed to a bracket on one side of the furnace body by means of mounting bolts on the mounting base plate, and an electric heater and a suction fan are turned on, the suction fan blows outside air into the heating box, and the electric heater is used to quickly heat the gas in the heating box, and a thermostat controls the electric heater to perform constant temperature heating.

[0018] (2) The utility model discloses a hot air duct for an ore-fired furnace, in which the hot air generated enters the annular pipe through the main output straight pipe, and is finally dispersed into the furnace chamber of the ore-fired furnace through the L-shaped branch pipe, thereby improving the use effect. The main output straight pipe sleeve, the annular pipe sleeve and the L-shaped branch pipe sleeve are all made of polyurethane material, which has a significant heat insulation effect, avoids heat loss, and achieves energy-saving effect. A control valve at one end of the main output straight pipe is used to facilitate the control of the gas output. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the air inlet assembly of the utility model;

[0022] Figure 3 For this utility model Figure 1 A large-scale drawing of location A;

[0023] In the figure: 1. air inlet assembly; 101. air inlet; 102. suction fan; 103. sealing mesh cover; 2. thermostat; 3. electric heater; 4. mounting base; 5. heating box; 6. control valve; 7. main output straight pipe; 8. main output straight pipe sleeve; 9. L-shaped branch pipe sleeve; 10. annular pipe sleeve; 11. L-shaped branch pipe; 12. nozzle; 13. annular pipe; 14. UPS power supply. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] After constant temperature heating is achieved, it is transported through pipelines. The pipelines have significant thermal insulation effects, which can avoid heat loss and achieve energy-saving effects. Figure 1-3 As shown, a hot air duct of a mineral heating furnace described in the utility model comprises a heating box 5, a main output straight pipe 7, a ring pipe 13 and an L-shaped branch pipe 11, an air inlet assembly 1 is arranged at one end of the top of the heating box 5, and the air inlet assembly 1 comprises an air inlet 101 installed on the heating box 5 by screws, a suction fan 102 is installed in the air inlet 101 through a mounting seat, an electric heater 3 is installed on one side of the heating box 5 through a mounting groove, and a thermostat 2 is installed on one end of the electric heater 3 by screws;

[0026] The output port of the heating box 5 is connected to the annular tube 13 through the main output straight tube 7, and an L-shaped branch tube 11 is equidistantly connected to the bottom of the annular tube 13. The output port of the L-shaped branch tube 11 is connected to the nozzle 12. The outer sides of the main output straight tube 7, the annular tube 13 and the L-shaped branch tube 11 are respectively sleeved with a main output straight tube sleeve 8, annular tube sleeve 10 and L-shaped branch tube sleeve 9. The main output straight tube sleeve 8, the annular tube sleeve 10 and the L-shaped branch tube sleeve 9 are all made of polyurethane material.

[0027] When in use, the electric heater 3 and the suction fan 102 are turned on, the suction fan 102 blows the outside air into the heating box 5, the electric heater 3 is used to quickly heat the gas in the heating box 5, and the thermostat 2 controls the electric heater 3 to perform constant temperature heating, and the generated hot air enters the annular pipe 13 through the main output straight pipe 7, and finally dispersed into the furnace cavity of the submerged arc furnace through the L-shaped branch pipe 11, thereby improving the use effect;

[0028] The main output straight pipe sleeve 8, the annular pipe sleeve 10 and the L-shaped branch pipe sleeve 9 are all made of polyurethane material, which has a significant heat insulation effect, avoids heat loss, and achieves an energy-saving effect.

[0029] In order to perform constant temperature heating, for example, Figure 1 As shown, the utility model also includes that the detection end of the temperature controller 2 and the heating end of the electric heater 3 are both located in the heating box 5, and the output end of the temperature controller 2 and the input end of the electric heater 3 are electrically connected through a wire.

[0030] When in use, the electric heater 3 is used to quickly heat the gas in the heating box 5, and the temperature controller 2 controls the electric heater 3 to perform constant temperature heating.

[0031] For example, Figure 2 As shown, the utility model also includes that a sealing mesh cover 103 is installed on the top of the air inlet 101 by screws.

[0032] When in use, the sealing mesh cover 103 is used to protect the suction fan 102.

[0033] For example, Figure 1 As shown, the utility model also includes that a control valve 6 is provided at one end of the main output straight pipe 7.

[0034] When in use, the output amount of the gas can be easily controlled by controlling the valve 6 at one end of the main output straight pipe 7.

[0035] For example, Figure 1 As shown, the utility model also includes that a mounting base plate 4 is provided at the bottom of the heating box 5 and mounting bolts are provided at the corners of the mounting base plate 4 .

[0036] When in use, the heating box 5 is fixed to the bracket on one side of the furnace body by using the mounting bolts on the mounting base plate 4 .

[0037] For example, Figure 1 , 2 As shown, the utility model also includes that a UPS power supply 14 is provided at one end of the heating box 5 through a snap-fit ​​sleeve, and the output end of the UPS power supply 14 is electrically connected to the suction fan 102 and the input end of the electric heater 3 through a wire.

[0038] When in use, the UPS power supply 14 is used to supply power to the electrical equipment for stable operation.

[0039] When the utility model is in use, the annular tube 13 is sleeved on the ore-heating furnace body and the L-shaped branch pipes 11 are evenly distributed on the outside, the jet head 12 of the L-shaped branch pipe 11 is located in the furnace cavity, and the heating box 5 is fixed to the bracket on one side of the furnace body by using the mounting bolts on the mounting bottom plate 4;

[0040] The electric heater 3 and the suction fan 102 are turned on, and the suction fan 102 blows the outside air into the heating box 5, and the electric heater 3 is used to quickly heat the gas in the heating box 5, and the thermostat 2 controls the electric heater 3 to perform constant temperature heating, and the generated hot air enters the annular pipe 13 through the main output straight pipe 7, and finally dispersed into the furnace cavity of the submerged arc furnace through the L-shaped branch pipe 11, thereby improving the use effect;

[0041] The main output straight pipe sleeve 8, the annular pipe sleeve 10 and the L-shaped branch pipe sleeve 9 are all made of polyurethane material, which has a significant thermal insulation effect, avoids heat loss, and achieves energy-saving effect. The control valve 6 at one end of the main output straight pipe 7 is used to control the output of the gas.

[0042] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A hot air duct for a mineral arc furnace, characterized in that: The heating box (5) comprises a heating box (5), a main output straight pipe (7), a ring pipe (13) and an L-shaped branch pipe (11); an air inlet assembly (1) is arranged at one end of the top of the heating box (5); the air inlet assembly (1) comprises an air inlet (101) mounted on the heating box (5) by screws; a suction fan (102) is mounted in the air inlet (101) by a mounting seat; an electric heater (3) is mounted on one side of the heating box (5) by a mounting groove; and a thermostat (2) is mounted on one end of the electric heater (3) by screws; The output port of the heating box (5) is connected to the annular tube (13) through the main output straight tube (7), and the bottom of the annular tube (13) is connected to an L-shaped branch tube (11) at an equal distance, and the output port of the L-shaped branch tube (11) is connected to the spray head (12). The main output straight tube (7), the annular tube (13) and the L-shaped branch tube (11) are respectively sleeved with a main output straight tube sleeve (8), an annular tube sleeve (10) and an L-shaped branch tube sleeve (9), and the main output straight tube sleeve (8), the annular tube sleeve (10) and the L-shaped branch tube sleeve (9) are all made of polyurethane material.

2. The hot air duct of a submerged arc furnace according to claim 1, characterized in that: The detection end of the temperature controller (2) and the heating end of the electric heater (3) are both located in the heating box (5), and the output end of the temperature controller (2) and the input end of the electric heater (3) are electrically connected via a wire.

3. The hot air duct of a submerged arc furnace according to claim 1, characterized in that: A sealing mesh cover (103) is installed on the top of the air inlet (101) by means of screws.

4. The hot air duct of a submerged arc furnace according to claim 1, characterized in that: A control valve (6) is provided at one end of the main output straight pipe (7).

5. The hot air duct of a submerged arc furnace according to claim 1, characterized in that: A mounting base plate (4) is provided at the bottom of the heating box (5), and mounting bolts are provided at the corners of the mounting base plate (4).

6. The hot air duct of a submerged arc furnace according to claim 1, characterized in that: A UPS power supply (14) is provided at one end of the heating box (5) via a snap-fit ​​sleeve, and an output end of the UPS power supply (14) is electrically connected to an input end of a suction fan (102) and an electric heater (3) via a wire.

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