High-temperature box type electric furnace with heat recovery effect

Abstract

The high-temperature box type electric furnace with the heat recovery effect comprises a furnace body, furnace walls are installed on the inner side walls of the two ends of the furnace body respectively, two grooves are formed in the two furnace walls respectively, electric heating wires are arranged in the two grooves respectively, a placing plate is connected between the two furnace walls in a sliding mode, and the placing plate is arranged on the inner side walls of the two ends of the furnace body. A moving mechanism used for moving the placing plate is arranged between the two furnace walls, the moving mechanism comprises two sliding blocks which are symmetrically arranged and slidably connected to the inner bottom of the furnace body, rotating rods are rotatably connected to the two sliding blocks, and the ends, away from the sliding blocks, of the two rotating rods are jointly and rotatably connected with a fixing block; and the fixing block is fixedly connected to the lower end of the placing plate. The device is reasonable in structure, by arranging the moving mechanism and the driving mechanism, after heating is completed, the placing plate moves downwards, materials are made to be far away from the electric heating wire, and the situation that waste heat of the electric heating wire continues to heat the materials, and the cooling speed of the materials is affected can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of box-type electric furnaces, in particular to a high-temperature box-type electric furnace with heat recovery effect. Background Technique

[0002] Box-type electric furnaces are mainly used for high-temperature precision annealing, crystallization, ceramic glaze preparation, die annealing, powder metallurgy, rubber powder experiments, nanomaterials, metal part annealing, and all heat treatments with high-temperature process requirements. They are widely used in new material development, heat treatment and other experiments and production in units and industries such as institutions of higher learning, scientific research institutes, industrial and mining enterprises, military industries, electronics, metallurgy, medicine, ceramics, glass, machinery, metals, building materials, and chemical industries.

[0003] In the prior art, traditional box-type electric furnaces have low defects. For example, after the traditional box-type electric furnace is used, the temperature inside the furnace is relatively high, and the temperature of the materials inside the furnace is also relatively high. It is necessary to wait for it to cool naturally before taking out the materials. However, most box-type electric furnaces are heated by electric heating wires or heating rods. When in use, the materials are located between the heating wires or heating rods on both sides and cannot move. After stopping, the residual temperature of the heating components will still heat the materials, resulting in a slower cooling speed of the materials. Therefore, the utility model proposes a high-temperature box-type electric furnace with heat recovery effect to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a high-temperature box-type electric furnace with heat recovery effect. By setting a moving mechanism and a driving mechanism, after heating is completed, the placing plate moves downward, so that the materials are far away from the electric heating wires, which can effectively avoid the residual temperature of the electric heating wires from continuing to heat the materials and affecting the cooling speed of the materials. At the same time, the heat exchanger can be used to recover and utilize the waste heat, improving the cooling efficiency of the materials.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A high-temperature box-type electric furnace with heat recovery effect, including a furnace body. Furnace walls are installed on the inner side walls at both ends of the furnace body. Two grooves are opened on each of the two furnace walls. Electric heating wires are arranged in the two grooves. A placing plate is slidably connected between the two furnace walls. And a moving mechanism for moving the placing plate is arranged between the two furnace walls. The moving mechanism includes two symmetrically arranged sliders slidably connected to the bottom of the furnace body. Rotating rods are rotatably connected to both of the two sliders. The ends of the two rotating rods away from the sliders are jointly rotatably connected to a fixed block. The fixed block is fixedly connected to the lower end of the placing plate. A driving mechanism for driving the moving mechanism is arranged between the two furnace walls. A limiting mechanism for limiting the sliders is arranged between the two furnace walls.

[0007] Preferably, the driving mechanism includes a double-headed threaded rod rotatably connected between two furnace walls, and the double-headed threaded rod passes through and is threadedly connected to two sliders.

[0008] Preferably, the limiting mechanism includes a limiting rod fixedly connected between two furnace walls, and the limiting rod passes through and is slidably connected to two sliders.

[0009] Preferably, a motor is fixedly connected to the side wall of the furnace body, and the end of the output shaft of the motor is fixedly connected to the end of the double-headed threaded rod.

[0010] Preferably, a heat exchanger is installed on the side wall of the furnace body, and an exhaust pipe is arranged at the lower end of the heat exchanger.

[0011] Preferably, an air suction fan is arranged at the upper end of the furnace body. The air suction fan is communicated with the heat exchanger through an air inlet pipe, and a door body is arranged on the front side wall of the furnace body.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By providing a moving mechanism and a driving mechanism, after heating is completed, the output shaft of the driving motor rotates, driving the double-headed threaded rod to rotate, thereby driving the two sliders threadedly connected thereto to move towards both ends, driving the two rotating rods to rotate and pulling the fixed block downward, thereby driving the placement plate to move downward, driving the materials on the placement plate to move downward, and enabling them to move away from the electric heating wire, which can effectively prevent the residual temperature of the electric heating wire from continuously heating the materials and affecting the cooling speed of the materials.

[0014] 2. By providing a heat exchanger and an air suction fan, after the furnace body stops heating, the air suction fan is started. The air suction fan can extract the high-temperature gas in the furnace body and enter the heat exchanger through the air inlet pipe. The heat exchanger can perform heat exchange and recycle the heat, greatly improving the environmental protection performance of the device. Description of the Drawings

[0015] Figure 1 is the external three-dimensional view of a high-temperature box-type electric furnace with a heat recovery effect proposed by the present utility model;

[0016] Figure 2 is the sectional bottom three-dimensional view of a high-temperature box-type electric furnace with a heat recovery effect proposed by the present utility model;

[0017] Figure 3 is the sectional top three-dimensional view of a high-temperature box-type electric furnace with a heat recovery effect proposed by the present utility model;

[0018] Figure 4 is Figure 3 the enlarged view of the structure at A in

[0019] Figure 5 The bottom perspective view of the placement plate of a high-temperature box-type electric furnace with a heat recovery effect proposed by the present utility model;

[0020] Figure 6 The top perspective view of the placement plate of a high-temperature box-type electric furnace with a heat recovery effect proposed by the present utility model.

[0021] In the figure: 1 furnace body, 2 heat exchanger, 3 door body, 4 intake pipe, 5 suction fan, 6 exhaust pipe, 7 furnace wall, 8 groove, 9 motor, 10 electric heating wire, 11 limiting rod, 12 double-headed threaded rod, 13 slider, 14 rotating rod, 15 placement plate, 16 fixing block. Specific embodiments

[0022] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0023] Referring to Figures 1-6 , a high-temperature box-type electric furnace with a heat recovery effect includes a furnace body 1. Furnace walls 7 are installed on the inner side walls at both ends of the furnace body 1. Two grooves 8 are opened on each of the two furnace walls 7. Electric heating wires 10 are arranged in the two grooves 8. A placement plate 15 is slidably connected between the two furnace walls 7, and a moving mechanism for moving the placement plate 15 is arranged between the two furnace walls 7. The moving mechanism includes two symmetrically arranged sliders 13 slidably connected to the inner bottom of the furnace body 1. Rotating rods 14 are rotatably connected to the two sliders 13. The ends of the two rotating rods 14 away from the sliders 13 are jointly rotatably connected to a fixing block 16. The fixing block 16 is fixedly connected to the lower end of the placement plate 15. The furnace walls 7, the inner top of the furnace body 1, and the placement plate 15 are all made of high-temperature resistant materials.

[0024] A driving mechanism for driving the moving mechanism is arranged between the two furnace walls 7. The driving mechanism includes a double-headed threaded rod 12 rotatably connected between the two furnace walls 7. The double-headed threaded rod 12 passes through the two sliders 13 and is threadedly connected thereto. The thread directions at both ends of the double-headed threaded rod 12 are opposite. A motor 9 is fixedly connected to the side wall of the furnace body 1. The end of the output shaft of the motor 9 is fixedly connected to the end of the double-headed threaded rod 12.

[0025] A limiting mechanism for limiting the slider 13 is arranged between two furnace walls 7. The limiting mechanism includes a limiting rod 11 fixedly connected between the two furnace walls 7. The limiting rod 11 passes through the two sliders 13 and is slidably connected thereto. The limiting rod 11 is horizontally arranged to limit the sliders 13 on both sides.

[0026] A heat exchanger 2 is installed on the side wall of the furnace body 1. An exhaust pipe 6 is arranged at the lower end of the heat exchanger 2. An air suction fan 5 is arranged at the upper end of the furnace body 1. The air suction fan 5 is communicated with the heat exchanger 2 through an air inlet pipe 4. A door body 3 is arranged on the front side wall of the furnace body 1. A sealing design is adopted between the door body 3 and the furnace body 1.

[0027] When the utility model is in use, first open the door body 3, place the material to be heated on the placing plate 15 in the furnace body 1, then close the door body 3, start the electric heating wire 10 to heat the material on the placing plate 15. After the heating is completed, the electric heating wire 10 stops heating. Then, the output shaft of the driving motor 9 rotates to drive the double-headed threaded rod 12 to rotate, thereby driving the two sliders 13 threadedly connected thereto to move towards both ends, pulling the rotating rods 14 on both sides to rotate, and further pulling the fixed block 16 to move downward, pulling the placing plate 15 to move downward, which can drive the material to move downward, making the material away from the electric heating wire 10, effectively avoiding the influence of the residual heat of the electric heating wire 10 on the cooling of the material. During the cooling process, start the air suction fan 5, which can extract the high-temperature gas in the furnace body 1 and enter the heat exchanger 2 through the air inlet pipe 4. The heat exchanger 2 can perform heat exchange and recycle the heat, and at the same time discharge the high-temperature gas, effectively improving the cooling efficiency.

[0028] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the utility model.

Claims

1. A high-temperature box-type electric furnace with heat recovery effect, comprising a furnace body (1), characterized in that, On the inner side walls at both ends of the furnace body (1), furnace walls (7) are installed. Two grooves (8) are formed on each of the two furnace walls (7). Electric heating wires (10) are arranged in each of the two grooves (8). A placement plate (15) is slidably connected between the two furnace walls (7), and a moving mechanism for moving the placement plate (15) is arranged between the two furnace walls (7). The moving mechanism includes two symmetrically arranged sliders (13) slidably connected to the inner bottom of the furnace body (1). Rotating rods (14) are rotatably connected to each of the two sliders (13). The ends of the two rotating rods (14) away from the sliders (13) are jointly rotatably connected to a fixed block (16). The fixed block (16) is fixedly connected to the lower end of the placement plate (15). A driving mechanism for driving the moving mechanism is arranged between the two furnace walls (7), and a limiting mechanism for limiting the sliders (13) is arranged between the two furnace walls (7).

2. The high-temperature box-type electric furnace with heat recovery effect according to claim 1, characterized in that, The driving mechanism includes a double-headed threaded rod (12) rotatably connected between the two furnace walls (7). The double-headed threaded rod (12) passes through the two sliders (13) and is threadedly connected thereto.

3. The high-temperature box-type electric furnace with heat recovery effect according to claim 2, characterized in that, The limiting mechanism includes a limiting rod (11) fixedly connected between the two furnace walls (7). The limiting rod (11) passes through the two sliders (13) and is slidably connected thereto.

4. A high-temperature box-type electric furnace with a heat recovery effect according to claim 3, characterized in that, A motor (9) is fixedly connected to the side wall of the furnace body (1). The end of the output shaft of the motor (9) is fixedly connected to the end of the double-headed threaded rod (12).

5. A high-temperature box-type electric furnace with a heat recovery effect according to claim 4, characterized in that, A heat exchanger (2) is installed on the side wall of the furnace body (1). An exhaust pipe (6) is arranged at the lower end of the heat exchanger (2).

6. A high-temperature box-type electric furnace with a heat recovery effect according to claim 5, characterized in that An air suction fan (5) is arranged at the upper end of the furnace body (1). The air suction fan (5) is communicated with the heat exchanger (2) through an air inlet pipe (4). A door body (3) is arranged on the front side wall of the furnace body (1).

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