Round crucible furnace

Abstract

The utility model relates to the field of crucible furnaces, in particular to a circular crucible furnace. The utility model provides a circular crucible furnace which can reduce the consumption of fuel gas and improve the combustion efficiency of the fuel gas so as to save the experiment cost and realize the high-efficiency and low-emission combustion process. A round crucible furnace comprises a furnace body, an induced draft fan, a first air pipe, a second air pipe and the like, a heating cavity is formed in the left portion of the furnace body, the induced draft fan is connected to the upper side of the furnace body, the first air pipe is connected to the right side of the upper rear portion of the furnace body, and the second air pipe is connected to the right side of the upper front portion of the furnace body. The heat storage fan is started to store heat of air, the air is led into the first air pipe through the rear portion of the electric reversing valve and then enters the rear heat storage part from the first air pipe to release heat, the mixing proportion of the air and fuel gas is controlled through the fuel gas fan, the fuel gas consumption can be reduced, the fuel gas combustion efficiency can be improved, and the energy consumption can be reduced. Therefore, the experiment cost is saved, and the effect of an efficient and low-emission combustion process is achieved.

Description

Technical Field

[0001] The utility model relates to the field of crucible furnaces, in particular to a circular crucible furnace. Background Art

[0002] Crucible furnaces are devices used to heat substances, usually for high temperature experiments, melting metals or compounds, sintering ceramics, etc. Crucible furnaces consist of a crucible (usually a container made of ceramic or metal) and a heating element, which can be a resistance wire, flame or other heat source.

[0003] Existing crucible furnaces usually heat the furnace body by introducing gas, so that the furnace body can melt or sinter the experimental material. However, since the amount of gas required to heat the furnace body only by gas is large, and insufficient or excessive air may occur during gas combustion, the combustion efficiency of the gas will be affected.

[0004] Therefore, a circular crucible furnace has been developed which can reduce gas consumption and improve gas combustion efficiency so as to save experimental costs and achieve an efficient and low-emission combustion process. Summary of the invention

[0005] In order to overcome the shortcomings of the existing crucible furnace, that is, a large amount of gas is required to heat the furnace body only by gas, and insufficient or excessive air may occur during gas combustion, which will affect the combustion efficiency of the gas, the utility model provides a circular crucible furnace which can reduce gas consumption and improve gas combustion efficiency, so as to save experimental costs and realize a high-efficiency, low-emission combustion process.

[0006] The technical scheme is as follows: a circular crucible furnace, comprising a furnace body, an induced draft fan, a first air duct, a second air duct, an electric reversing valve, a heat storage fan, a gas fan, a combustion system pipeline, a first burner, a second burner, a gas valve and a heat storage component, a heating chamber is arranged on the left side of the furnace body, an induced draft fan is connected to the upper side of the furnace body, an air duct one is connected to the right side of the upper rear part of the furnace body, an air duct two is connected to the right side of the upper front part of the furnace body, an electric reversing valve is connected between the air duct one and the air duct two, the electric reversing valve is connected to the induced draft fan, a heat storage fan is connected to the right side of the front part of the furnace body, the heat storage fan is connected to the electric reversing valve, a gas fan is connected to the right side of the rear part of the furnace body, and a burner one is connected to the right side of the lower rear part of the furnace body. Burner 2 is connected to the right side of the front lower part of the furnace body, burner 1 and burner 2 both pass through the furnace body and are located below the heating chamber, a combustion system pipeline is connected between burner 1 and burner 2 and the gas fan, a combustion system pipeline is also connected between burner 1 and burner 2, and two front and rear gas valves are connected to the combustion system pipeline connected between burner 1 and burner 2. The upper part of the combustion system pipeline connected between burner 1 and burner 2 passes through the protective frame and the furnace body, and two front and rear heat storage parts are connected to the upper part of the furnace body. Air duct 1 is connected to the rear heat storage part, burner 1 is also connected to the rear heat storage part, air duct 2 is connected to the front heat storage part, and burner 2 is also connected to the front heat storage part.

[0007] Preferably, a protection frame is also included, and the right side of the furnace body is connected to the protection frame, and the protection frame is used to protect the combustion system pipeline.

[0008] Preferably, a heat-insulating cover is further included, which is clamped on the upper left side of the furnace body, and the heating chamber is located below the heat-insulating cover, and the heating chamber is closed by the heat-insulating cover.

[0009] Preferably, an electric box is also included, which is connected to the upper right front side of the furnace body. The induced draft fan, electric reversing valve, heat storage fan and gas fan are all connected to the electric box through wires. The heat storage fan is started by the electric box to store heat in the air and introduce it into the air duct through the rear of the electric reversing valve.

[0010] Preferably, a gas flow meter and a pressure reducing valve are also included. The gas flow meter is connected to the upper part of the combustion system pipeline between burner one and burner two, and the pressure reducing valve is connected to the upper part of the combustion system pipeline between burner one and burner two. The pressure reducing valve is located behind the gas flow meter. The gas flow meter records the amount of gas used, and the pressure reducing valve is used to maintain a stable pressure level in the combustion system pipeline.

[0011] Preferably, a furnace thermocouple is also included. The rear side of the furnace body is connected with a furnace thermocouple. The furnace thermocouple is a sensor for measuring the temperature in the furnace so as to monitor and control the temperature of the furnace.

[0012] The beneficial effects of the utility model are as follows: the utility model starts the heat storage fan to store heat in the air and introduces it into the air duct one through the rear of the electric reversing valve, and then enters the rear heat storage component from the air duct one to release heat, and then controls the mixing ratio of air and gas through the gas fan, thereby achieving the effect of reducing gas consumption and improving gas combustion efficiency, so as to save experimental costs and realize a high-efficiency, low-emission combustion process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the utility model.

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model.

[0017] Figure numbers: 1_furnace body, 2_protection frame, 3_insulation cover, 4_electric box, 5_induced draft fan, 6_air duct one, 60_air duct two, 7_electric reversing valve, 8_heat storage fan, 9_gas fan, 10_combustion system pipeline, 11_burner one, 110_burner two, 12_gas valve, 13_gas flow meter, 14_pressure reducing valve, 15_furnace thermocouple, 16_heat storage component. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] A circular crucible furnace, such as Figure 1-Figure 4As shown, it includes a furnace body 1, an induced draft fan 5, an air duct 1 6, an air duct 2 60, an electric reversing valve 7, a heat storage fan 8, a gas fan 9, a combustion system pipeline 10, a burner 1 11, a burner 2 110, a gas valve 12 and a heat storage member 16. A heating chamber is provided on the left side of the furnace body 1, the induced draft fan 5 is connected to the upper side of the furnace body 1, the air duct 1 6 is connected to the right side of the upper rear part of the furnace body 1, the air duct 2 60 is connected to the right side of the upper front part of the furnace body 1, an electric reversing valve 7 is connected between the air duct 1 6 and the air duct 2 60, the electric reversing valve 7 is connected to the induced draft fan 5, the heat storage fan 8 is connected to the right side of the front part of the furnace body 1, the heat storage fan 8 is connected to the electric reversing valve 7, the gas fan 9 is connected to the right side of the rear part of the furnace body 1, the burner 1 11 is connected to the right side of the lower rear part of the furnace body 1, and the burner 2 1 is connected to the right side of the lower front part of the furnace body 1 10, both burner one 11 and burner two 110 pass through the furnace body 1 and are located below the heating chamber, a combustion system pipeline 10 is connected between burner one 11 and burner two 110 and the gas blower 9, a combustion system pipeline 10 is also connected between burner one 11 and burner two 110, two front and rear gas valves 12 are connected to the combustion system pipeline 10 connected between burner one 11 and burner two 110, the upper part of the combustion system pipeline 10 connected between burner one 11 and burner two 110 passes through the protective frame 2 and the furnace body 1, two front and rear heat storage parts 16 are connected to the upper part of the furnace body 1, the air duct one 6 is connected to the rear heat storage part 16, the burner one 11 is also connected to the rear heat storage part 16, the air duct two 60 is connected to the front heat storage part 16, and the burner two 110 is also connected to the front heat storage part 16.

[0020] like Figure 1-Figure 4 As shown, a protection frame 2 is also included, and the protection frame 2 is connected to the right side of the furnace body 1.

[0021] like Figure 1-Figure 4 As shown, a heat-insulating cover 3 is also included. The heat-insulating cover 3 is clamped on the upper left side of the furnace body 1, and the heating chamber is located below the heat-insulating cover 3.

[0022] like Figure 1-Figure 4 As shown, an electric box 4 is also included, and the electric box 4 is connected to the upper right front side of the furnace body 1. The induced draft fan 5, the electric reversing valve 7, the heat storage fan 8 and the gas fan 9 are all connected to the electric box 4 through wires.

[0023] like Figure 1-Figure 4 As shown, it also includes a gas flow meter 13 and a pressure reducing valve 14. The gas flow meter 13 is connected to the upper part of the combustion system pipeline 10 between burner 11 and burner 2 110, and the pressure reducing valve 14 is connected to the upper part of the combustion system pipeline 10 between burner 11 and burner 2 110. The pressure reducing valve 14 is located behind the gas flow meter 13.

[0024] like Figure 2-Figure 4 As shown, a furnace thermocouple 15 is also included, and the rear side of the furnace body 1 is connected with the furnace thermocouple 15 .

[0025] When using the utility model, first place the furnace body 1 in the use area, then place the experimental material to be sintered in the heating chamber, and after placing, seal the heating chamber through the heat-insulating cover 3, then introduce gas into the combustion system pipeline 10 connected to the pressure reducing valve 14, close the front gas valve 12, and open the rear gas valve 12, so that the gas enters the burner 11 from the combustion system pipeline 10 to heat the heating chamber, and at the same time, start the heat storage fan 8 through the electric box 4 to store heat in the air and introduce it into the air duct 1 6 through the rear of the electric reversing valve 7, and then enter the rear heat storage part 16 from the air duct 1 6 to release heat, then start the induced draft fan 5, so that the exhaust gas after the gas releases enters the front heat storage part 16 to store heat, and then enters the induced draft fan 5 from the front of the air duct 2 60 through the electric reversing valve 7 to be led out, and then control the electric reversing valve 7 to switch, and control the gas valve 12 to open The off state is switched so that the gas is ejected from the second burner 110, the heat in the front heat storage element 16 is released, and the exhaust gas enters the rear heat storage element 16 for heat storage to achieve the effect of circulating heat storage. When the material is sintered, the gas blower 9 can also be started to allow the gas blower 9 to pass air into the first burner 11 and the second burner 110 through the combustion system pipeline 10 to control the mixing ratio of air and gas and help the gas to burn completely. The protection frame 2 is used to protect the combustion system pipeline 10, the gas flow meter 13 records the amount of gas used, the pressure reducing valve 14 is used to maintain a stable pressure level in the combustion system pipeline 10, and the furnace thermocouple 15 is a sensor for measuring the temperature in the furnace to monitor and control the temperature of the furnace, thereby reducing the gas consumption and improving the gas combustion efficiency, so as to save experimental costs and achieve an efficient and low-emission combustion process.

[0026] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A circular crucible furnace, characterized in that: The invention comprises a furnace body (1), an induced draft fan (5), an air duct one (6), an air duct two (60), an electric reversing valve (7), a heat storage fan (8), a gas fan (9), a combustion system pipeline (10), a burner one (11), a burner two (110), a gas valve (12) and a heat storage element (16). The furnace body (1) is provided with a heating chamber on the left side, the induced draft fan (5) is connected to the upper side of the furnace body (1), the air duct one (6) is connected to the right side of the upper rear portion of the furnace body (1), and the front portion of the furnace body (1) is provided with a heating chamber. The upper right side is connected to air duct 2 (60), an electric reversing valve (7) is connected between air duct 1 (6) and air duct 2 (60), the electric reversing valve (7) is connected to the induced draft fan (5), the front right side of the furnace body (1) is connected to a heat storage fan (8), the heat storage fan (8) is connected to the electric reversing valve (7), the rear right side of the furnace body (1) is connected to a gas fan (9), the rear lower right side of the furnace body (1) is connected to a burner 1 (11), and the front lower right side of the furnace body (1) is connected to a burner The first burner (11) and the second burner (110) both pass through the furnace body (1) and are located below the heating chamber. A combustion system pipeline (10) is connected between the first burner (11) and the second burner (110) and the gas blower (9). A combustion system pipeline (10) is also connected between the first burner (11) and the second burner (110). Two front and rear gas valves ( 12), the upper portion of the combustion system pipeline (10) connected between the burner 1 (11) and the burner 2 (110) passes through the protection frame (2) and the furnace body (1), and the upper portion of the furnace body (1) is connected to two front and rear heat storage elements (16), the air duct 1 (6) is connected to the rear heat storage element (16), the burner 1 (11) is also connected to the rear heat storage element (16), the air duct 2 (60) is connected to the front heat storage element (16), and the burner 2 (110) is also connected to the front heat storage element (16).

2. A circular crucible furnace according to claim 1, characterized in that: It also includes a protection frame (2), the right side of the furnace body (1) is connected to the protection frame (2), and the protection frame (2) is used to protect the combustion system pipeline (10).

3. A circular crucible furnace according to claim 2, characterized in that: It also includes a heat-insulating cover (3), which is clamped on the upper left side of the furnace body (1), and the heating chamber is located below the heat-insulating cover (3), and the heating chamber is sealed by the heat-insulating cover (3).

4. The round crucible furnace according to claim 3, characterized in that: The furnace body (1) further comprises an electric box (4). The electric box (4) is connected to the upper right front side of the furnace body (1). The induced draft fan (5), the electric reversing valve (7), the heat storage fan (8) and the gas fan (9) are all connected to the electric box (4) via electric wires. The heat storage fan (8) is started by the electric box (4) to store heat in the air and introduce the air into the air duct (6) through the rear of the electric reversing valve (7).

5. The round crucible furnace according to claim 4, characterized in that: The invention also comprises a gas flow meter (13) and a pressure reducing valve (14). The gas flow meter (13) is connected to the upper part of the combustion system pipeline (10) between the first burner (11) and the second burner (110). The pressure reducing valve (14) is connected to the upper part of the combustion system pipeline (10) between the first burner (11) and the second burner (110). The pressure reducing valve (14) is located behind the gas flow meter (13). The gas flow meter (13) records the amount of gas used. The pressure reducing valve (14) is used to maintain a stable pressure level in the combustion system pipeline (10).

6. The round crucible furnace according to claim 5, characterized in that: It also includes a furnace thermocouple (15). The rear side of the furnace body (1) is connected to the furnace thermocouple (15). The furnace thermocouple (15) is a sensor for measuring the temperature in the furnace, so as to monitor and control the temperature of the furnace.

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