An electric heating furnace

Abstract

The application relates to an electric heating furnace, and relates to the technical field of electric heating furnaces, which comprises a vertically arranged tank body, a heating piece arranged in the tank body, and a stirring assembly arranged on the tank body, the heating piece is used for heating liquid in the tank body; the stirring assembly is used for stirring the liquid in the tank body in the vertical direction and the horizontal direction under the drive of heat. The application can improve the heating efficiency of the electric heating furnace on materials.

Description

Technical Field

[0001] This application relates to the technical field of electric heating furnaces, and in particular to an electric heating furnace. Background Technology

[0002] An electric heating furnace is a device for heating materials. The material to be heated is added into the furnace body, and the furnace body is kept in a closed state to prevent heat loss. The electric heating furnace is equipped with electric heating elements. When heating the material, the electric heating elements are activated. Under the action of current, the electric heating elements arranged in the furnace body generate heat and transfer heat to the material, thereby achieving the heating of the material.

[0003] Existing electric heating furnaces suffer from poor internal air circulation during the heating process, resulting in uneven heat distribution within the furnace and consequently, low heating efficiency for materials. Summary of the Invention

[0004] In order to improve the heating efficiency of electric heating furnaces for materials, this application provides an electric heating furnace.

[0005] This application provides an electric heating furnace, which adopts the following technical solution:

[0006] An electric heating furnace includes a vertically arranged tank, a heating element disposed inside the tank, and a stirring assembly disposed on the tank. The heating element is used to heat the liquid inside the tank; the stirring assembly is used to stir the liquid inside the tank in both vertical and horizontal directions under the influence of the heat inside the tank.

[0007] By adopting the above technical solution, the heating element is activated, which heats the liquid in the tank, causing the temperature inside the tank to gradually rise. Driven by the heat inside the tank, the stirring component can stir the liquid in the tank in both vertical and horizontal directions, so that the liquid inside the tank is heated evenly, avoiding uneven heat distribution inside the tank, thereby improving the heating efficiency of the material.

[0008] Optionally, the stirring assembly includes a pressure plate disposed inside the tank, a telescopic rod vertically disposed above the pressure plate, and an elastic air column disposed inside the fixed end of the telescopic rod. The fixed end of the telescopic rod is fixedly connected to the tank, and the movable end of the telescopic rod is fixedly connected to the pressure plate. The pressure plate can move upward under the buoyancy of the liquid inside the tank. A ventilation assembly is disposed on the tank, which is used to replace the gas inside the elastic air column.

[0009] By adopting the above technical solution, after the heating element is started, the temperature inside the tank gradually rises, and the heat inside the tank can be transferred to the fixed end of the telescopic rod, causing the elastic air column to expand due to heat. This causes the telescopic rod to extend along its own length. When the movable end of the telescopic rod drives the pressure plate to the bottom of the tank, the ventilation component is activated. The ventilation component replaces the gas inside the elastic air column. At this time, the gas inside the elastic air column has not yet expanded due to heat, allowing the pressure plate to move upward under the buoyancy of the liquid inside the tank. This allows the pressure plate to stir the liquid inside the tank in the vertical direction.

[0010] Optionally, the ventilation assembly includes an exhaust pipe inserted into the fixed end of the telescopic rod, with one end of the exhaust pipe connected to the outside of the tank and the other end connected to the inside of the elastic air column; a first electric valve is installed on the exhaust pipe.

[0011] By adopting the above technical solution, when the pressure plate is at the bottom of the tank, the first electric valve is opened. At this time, the gas in the elastic gas column can enter the outside through the exhaust pipe, so that the pressure plate can move upward under the action of the liquid buoyancy. When the pressure plate moves upward to the initial position, the electric valve is closed. At this time, the remaining gas in the elastic gas column can continue to expand under the action of heat transfer in the tank, so that the elastic gas column can drive the pressure plate to reciprocate vertically through the telescopic rod, thereby enabling the pressure plate to reciprocate and stir the liquid in the tank in the vertical direction.

[0012] Optionally, the ventilation assembly includes a bidirectional pipe inserted into the fixed end of the telescopic rod, a bidirectional air pump installed on the bidirectional pipe, and a second electric valve installed on the bidirectional pipe; one end of the bidirectional pipe is connected to the outside and the other end is connected to the interior of the elastic air column.

[0013] By adopting the above technical solution, when the pressure plate is at the bottom of the tank, the second electric valve is opened and the bidirectional air pump is started at the same time. The bidirectional air pump delivers the hot gas in the elastic air column to the outside through the bidirectional pipe. Then, the bidirectional air pump is started again, so that the bidirectional air pump delivers the outside room temperature gas into the elastic air column through the bidirectional pipe. After the air exchange inside the elastic air column is completed, the pressure plate can move upward to the initial position, so that the pressure plate can move back and forth in the vertical direction under the drive of the elastic air column and the telescopic rod, thereby enabling the pressure plate to reciprocate and stir the liquid in the tank in the vertical direction.

[0014] Optionally, a groove is provided on the side wall of the tank, and the groove is arranged in a spiral along the vertical direction; the pressure plate is coaxially arranged with the tank and abuts against the inner wall of the tank, and a clearance hole is provided on the top surface of the pressure plate; the stirring assembly also includes a slider that is slidably arranged in the groove along the length of the groove and a stirring rod arranged below the pressure plate, with one end of the stirring rod fixedly connected to the slider; the stirring rod can move upward under the buoyancy of the liquid in the tank.

[0015] By adopting the above technical solution, the stirring rod can move upward under the buoyancy of the liquid, so that the stirring rod and the pressure plate are always in contact. During the downward movement of the pressure plate, the pressure plate applies vertical downward pressure to the stirring rod, so that the stirring rod can slide downward along the length of the chute. During the upward movement of the pressure plate, the liquid applies vertical upward buoyancy to the stirring rod, so that the stirring rod can move upward along the length of the chute. Thus, the stirring rod can reciprocate stirring of the liquid in both vertical and horizontal directions.

[0016] Optionally, the heating element is vertically arranged inside the tank, and a driving element is installed on the tank to drive the heating element to rotate around its own axis.

[0017] By adopting the above technical solution, the driving component is activated, which drives the heating component to rotate inside the tank. During the rotation, the heating component stirs the liquid inside the tank, thereby making the heat inside the tank more evenly distributed and further improving the heating efficiency of the material.

[0018] Optionally, the rotation direction of the stirring rod is always the same as the rotation direction of the heating element.

[0019] By adopting the above technical solution, the rotation direction of the heating element is the same as the rotation direction of the stirring rod, so that the horizontal flow direction of the liquid in the tank is the same as the rotation direction of the heating element. This makes the liquid push the stirring rod horizontally during the flow, which is beneficial for the stirring rod to slide in the groove.

[0020] Optionally, a circulation pipe is vertically installed on one side of the tank, with both the top and bottom ends of the circulation pipe connected to the inside of the tank, and the top of the circulation pipe not exceeding the highest liquid level inside the tank.

[0021] By adopting the above technical solution, during the downward movement of the pressure plate, the pressure plate can exert a squeezing and pushing effect on the liquid below it, so that the liquid at the bottom of the tank can flow to the top of the pressure plate through the circulation pipe, further enhancing the stirring effect of the pressure plate on the liquid, making the heat in the tank more evenly distributed, thereby further improving the heating efficiency of the material.

[0022] Optionally, a discharge pipe is connected to the top surface of the tank, a third electric valve is installed on the discharge pipe, and a detection component is installed inside the tank. The detection component is used to detect the air pressure inside the tank and to control the working state of the third electric valve.

[0023] By adopting the above technical solution, the gas pressure inside the tank is detected by the detection component. When the gas pressure inside the tank reaches the preset value, the third electric valve is activated so that the gas inside the tank can be discharged to the outside, thus avoiding excessive pressure inside the tank.

[0024] Optionally, the detection component includes a pressure sensor fixedly installed inside the tank and a controller installed on the tank. The pressure sensor is located above the liquid and is used to detect the pressure information inside the tank and transmit the corresponding pressure signal. The controller is electrically connected to the pressure sensor and the third electric valve. The controller responds to the pressure signal and controls the working state of the third electric valve.

[0025] By adopting the above technical solution, the pressure sensor detects the air pressure inside the tank. When the air pressure inside the tank reaches the preset value, the pressure sensor transmits the corresponding pressure signal to the controller. The controller responds to the pressure signal and controls the third electric valve to open, so that the gas inside the tank flows to the outside through the discharge pipe.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. By setting up heating elements and stirring components, the heating elements can heat the liquid in the tank, causing the temperature in the tank to gradually rise. The stirring components can stir the liquid in the tank in both vertical and horizontal directions under the drive of the heat in the tank, so that the liquid in the tank is heated evenly and the uneven heat distribution in the tank is avoided, thereby improving the heating efficiency of the material.

[0028] 2. By setting up a stirring rod, the pressure plate applies a vertical downward pressure to the stirring rod as it moves downward, allowing the stirring rod to slide downward along the length of the chute. As the pressure plate moves upward, the liquid applies a vertical upward buoyancy force to the stirring rod, allowing the stirring rod to move upward along the length of the chute. This enables the stirring rod to reciprocate in both the vertical and horizontal directions.

[0029] 3. By setting up a circulation pipe, the liquid at the bottom of the tank can flow to the top of the pressure plate through the circulation pipe, which further enhances the stirring effect of the pressure plate on the liquid, making the heat in the tank more evenly distributed, thereby further improving the heating efficiency of the material. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application;

[0031] Figure 2 This is a cross-sectional view of Embodiment 1 of this application;

[0032] Figure 3 yes Figure 1 A magnified view of a section at point A in the middle;

[0033] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this application;

[0034] Figure 5 yes Figure 4 A magnified view of a section at point B in the middle.

[0035] Explanation of reference numerals in the attached drawings: 1. Tank body; 11. Slide chute; 12. Discharge pipe; 13. Third electric valve; 14. Circulation pipe; 15. Support; 2. Heating element; 3. Stirring assembly; 31. Pressure plate; 311. Clearance hole; 32. Telescopic rod; 33. Elastic air column; 34. Stirring rod; 35. Sliding block; 4. Ventilation assembly; 41. Exhaust pipe; 42. First electric valve; 43. Two-way air pump; 44. Two-way pipe; 45. Second electric valve; 5. Drive element; 6. Detection assembly; 61. Pressure sensor; 62. Controller. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0037] This application discloses an electric heating furnace.

[0038] Example 1:

[0039] Reference Figure 1 and Figure 2 An electric heating furnace includes a vertically arranged tank 1 and a heating element 2 disposed inside the tank 1. The tank 1 contains liquid, and the heating element 2 is used to heat the liquid inside the tank 1. When the liquid material is placed inside the tank 1, the heating element 2 is activated to heat the liquid inside the tank 1.

[0040] Reference Figure 1 and Figure 2 The tank body 1 has a circular cross-section. A support 15 is fixedly installed on the bottom surface of the tank body 1. The support 15 is vertically installed and several are arranged around the circumference of the tank body 1. A discharge pipe 12 is vertically installed on the top surface of the tank body 1. The discharge pipe 12 is connected to the inside of the tank body 1 and is fixedly connected to the tank body 1. A third electric valve 13 is installed on the discharge pipe 12. The heating element 2 is an electric heating rod, which is coaxially installed inside the tank body 1. A driving element 5 is installed below the tank body 1. The driving element 5 is a motor, which is installed on the bottom surface of the tank body 1. The motor output shaft passes through the bottom surface of the tank body 1 and is coaxially installed with the tank body 1. The motor output shaft is fixedly connected to the electric heating rod.

[0041] Reference Figure 1 and Figure 2The tank body 1 is equipped with a stirring assembly 3, which includes a pressure plate 31 coaxially arranged inside the tank body 1, a telescopic rod 32 vertically arranged above the pressure plate 31, and an elastic air column 33 arranged in the fixed end of the telescopic rod 32. The pressure plate 31 abuts against the side wall of the tank body 1 and can move upward under the buoyancy of the liquid inside the tank body 1. A clearance hole 311 is opened on the top surface of the pressure plate 31 and is coaxially arranged with the pressure plate 31. An electric heating rod can be inserted into the clearance hole 311. There are two telescopic rods 32, both of which are located inside the tank body 1 and are symmetrically arranged on both sides of the clearance hole 311. The fixed end of the telescopic rod 32 is fixedly connected to the top surface of the tank body 1, and the movable end of the telescopic rod 32 is fixedly connected to the top surface of the pressure plate 31.

[0042] Reference Figure 2 and Figure 3 The telescopic rod 32 is equipped with a ventilation assembly 4, which includes an exhaust pipe 41 vertically inserted into the fixed end of the telescopic rod 32. One end of the exhaust pipe 41 is connected to the outside of the tank 1, and the other end of the exhaust pipe 41 is connected to the inside of the elastic air column 33. The exhaust pipe 41 is fixedly connected to the elastic air column 33 and the tank 1. A first electric valve 42 is installed on the exhaust pipe 41, and the first electric valve 42 is located outside the tank 1.

[0043] Reference Figure 1 and Figure 2 The tank body 1 has a groove 11 on its side wall, which is spirally arranged in the vertical direction. The stirring assembly 3 also includes a slider 35 and a stirring rod 34. The slider 35 is located below the pressure plate 31 and is slidably arranged in the groove 11 along its length. The stirring rod 34 is horizontally arranged below the pressure plate 31, and one end of the stirring rod 34 is fixedly connected to the slider 35. The stirring rod 34 can move upward under the buoyancy of the water in the tank body 1. When the pressure plate 31 moves downward, the rotation direction of the stirring rod 34 is the same as the rotation direction of the motor output shaft. When the pressure plate 31 moves upward, the rotation direction of the stirring rod 34 is the same as the rotation direction of the motor output shaft. During the upward and downward movements of the pressure plate 31, the rotation direction of the motor output shaft is opposite.

[0044] Reference Figure 1 and Figure 2A circulation pipe 14 is vertically installed on one side of the tank body 1. The top end of the circulation pipe 14 is connected to the inside of the tank body 1. The top end of the circulation pipe 14 is located below the highest liquid level in the tank body 1. The pressure plate 31 is always located between the top end and the bottom end of the circulation pipe 14. A detection component 6 is installed on the tank body 1. The detection component 6 includes a pressure sensor 61 fixedly installed on the top surface of the tank body 1 and a controller 62 installed on the side wall of the tank body 1. The pressure sensor 61 is located inside the tank body 1 and is used to detect the pressure information inside the tank body 1 and transmit the corresponding pressure signal. The controller 62 is electrically connected to the pressure sensor 61, the first electric valve 42, the second electric valve 45, and the third electric valve 13. The controller 62 responds to the pressure signal and controls the working state of the third electric valve 13.

[0045] The implementation principle of the electric heating furnace described in this application is as follows: The third electric valve 13 is opened, and liquid material is added to the tank 1 through the discharge pipe 12. Then, the third electric valve 13 is closed, and the electric heating rod and motor are started. The motor heating rod heats the liquid in the tank 1, causing the temperature inside the tank 1 to rise. The heat inside the tank 1 is transferred to the fixed end of the telescopic rod 32, causing the gas in the elastic gas column 33 to expand due to heat, thereby allowing the telescopic rod 32 to extend. At this time, the pressure plate 31 moves vertically downward under the action of the telescopic rod 32. When the pressure plate 31 is at the bottom of the tank 1… Open the first electric valve 42 so that the gas in the elastic gas column 33 can enter the outside through the exhaust pipe 41. At this time, the pressure plate 31 can move upward under the action of the buoyancy of the liquid. When the pressure plate 31 moves upward to the initial position, close the first electric valve 42. At this time, the remaining gas in the elastic gas column 33 can continue to expand under the action of heat transfer in the tank 1. This allows the elastic gas column 33 to drive the pressure plate 31 to reciprocate vertically through the telescopic rod 32, so that the pressure plate 31 can reciprocate to stir the liquid in the tank 1 in the vertical direction.

[0046] Example 2:

[0047] Reference Figure 4 and Figure 5 The difference between this embodiment and embodiment 1 is that the ventilation assembly 4 includes a bidirectional pipe 44 vertically inserted into the fixed end of the telescopic rod 32, a bidirectional air pump 43 installed on the bidirectional pipe 44, and a second electric valve 45 installed on the bidirectional pipe 44; one end of the bidirectional pipe 44 is connected to the outside and the other end is connected to the inside of the elastic air column 33, and the bidirectional pipe 44 is fixedly connected to the tank 1 and the elastic air column 33; the second electric valve 45 is located outside the tank 1.

[0048] When the pressure plate 31 is at the bottom of the tank 1, the second electric valve 45 is opened and the bidirectional air pump 43 is started at the same time. The bidirectional air pump 43 delivers the hot gas in the elastic air column 33 to the outside through the bidirectional pipe 44. Then the bidirectional air pump 43 is started again, so that the bidirectional air pump 43 delivers the outside room temperature gas to the inside of the elastic air column 33 through the bidirectional pipe 44. After the air exchange inside the elastic air column 33 is completed, the pressure plate 31 moves upward to the initial position under the action of the buoyancy of the liquid, so that the pressure plate 31 can reciprocate to stir the liquid in the tank 1 in the vertical direction.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electric heating furnace, characterized in that: It includes a vertically arranged tank (1), a heating element (2) arranged inside the tank (1), and a stirring assembly (3) arranged on the tank (1). The heating element (2) is used to heat the liquid inside the tank (1); the stirring assembly (3) is used to stir the liquid inside the tank (1) in the vertical and horizontal directions under the drive of the heat inside the tank (1). The stirring assembly (3) includes a pressure plate (31) disposed inside the tank (1), a telescopic rod (32) vertically disposed above the pressure plate (31), and an elastic air column (33) disposed inside the fixed end of the telescopic rod (32). The fixed end of the telescopic rod (32) is fixedly connected to the tank (1), and the movable end of the telescopic rod (32) is fixedly connected to the pressure plate (31). The pressure plate (31) can move upward under the buoyancy of the liquid inside the tank (1). A ventilation assembly (4) is provided on the tank (1). The ventilation assembly (4) is used to replace the gas inside the elastic air column (33). The tank (1) has a groove (11) on its side wall, which is spirally arranged in the vertical direction; the pressure plate (31) is coaxial with the tank (1) and abuts against the inner wall of the tank (1), and a clearance hole (311) is provided on the top surface of the pressure plate (31); the stirring assembly (3) also includes a slider (35) that is slidably arranged in the groove (11) along the length of the groove (11) and a stirring rod (34) arranged below the pressure plate (31), with the slider (35) fixedly connected to one end of the stirring rod (34); the stirring rod (34) can move upward under the buoyancy of the liquid in the tank (1); The ventilation assembly (4) includes an exhaust pipe (41) inserted into the fixed end of the telescopic rod (32). One end of the exhaust pipe (41) is connected to the outside of the tank (1), and the other end is connected to the inside of the elastic air column (33). A first electric valve (42) is installed on the exhaust pipe (41).

2. The electric heating furnace according to claim 1, characterized in that: The ventilation assembly (4) includes a bidirectional pipe (44) inserted into the fixed end of the telescopic rod (32), a bidirectional air pump (43) installed on the bidirectional pipe (44), and a second electric valve (45) installed on the bidirectional pipe (44); one end of the bidirectional pipe (44) is connected to the outside and the other end is connected to the inside of the elastic air column (33).

3. An electric heating furnace according to claim 1, characterized in that: The heating element (2) is vertically arranged inside the tank (1), and a driving element (5) is installed on the tank (1). The driving element (5) is used to drive the heating element (2) to rotate around its own axis.

4. An electric heating furnace according to claim 1, characterized in that: The direction of rotation of the stirring rod (34) is always the same as the direction of rotation of the heating element (2).

5. An electric heating furnace according to claim 1, characterized in that: A circulation pipe (14) is vertically installed on one side of the tank (1). The top and bottom of the circulation pipe (14) are connected to the inside of the tank (1). The top of the circulation pipe (14) is not higher than the highest liquid level in the tank (1).

6. An electric heating furnace according to claim 1, characterized in that: The top surface of the tank (1) is connected to a discharge pipe (12), and a third electric valve (13) is installed on the discharge pipe (12). A detection component (6) is installed inside the tank (1). The detection component (6) is used to detect the air pressure inside the tank (1) and to control the working state of the third electric valve (13).

7. An electric heating furnace according to claim 6, characterized in that: The detection component (6) includes a pressure sensor (61) fixedly installed inside the tank (1) and a controller (62) installed on the tank (1). The pressure sensor (61) is located above the liquid and is used to detect the pressure information inside the tank (1) and transmit the corresponding pressure signal. The controller (62) is electrically connected to the pressure sensor (61) and the third electric valve (13). The controller (62) responds to the pressure signal and controls the working state of the third electric valve (13).

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