Energy-saving box type electric furnace

Abstract

The invention relates to the technical field of box type electric furnaces, in particular to an energy-saving box type electric furnace which comprises a heating mechanism. The device further comprises a heat recovery mechanism, a cooling mechanism and an air exchange mechanism, the heat recovery mechanism and the cooling mechanism are both installed on the heating mechanism, and the air exchange mechanism is installed on the heat recovery mechanism. The ventilation mechanism is used for replacing gas in the heating mechanism, the heating mechanism is used for heating a workpiece, the heat recovery mechanism is used for recovering heat, and the cooling mechanism is used for cooling the workpiece; a workpiece is fed into the heating mechanism through the cooling mechanism, gas in the heating mechanism and the heat recovery mechanism is replaced through the gas exchange mechanism, then the workpiece is heated through the heating mechanism, and after the workpiece is heated, the workpiece is cooled. And residual heat in the heating mechanism is slowly recovered through the heat recovery mechanism and converted into electric energy used by the cooling mechanism until the workpiece is annealed, and then the workpiece is thoroughly cooled through the cooling mechanism, so that the practicability of the equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of box-type electric furnaces, in particular to an energy-saving box-type electric furnace. Background Art

[0002] A box-type electric furnace is a heating device that converts electrical energy into thermal energy. It is widely used in industrial heat treatment, laboratory scientific research, material development and other fields. Existing box-type electric furnaces, such as the box-type electric furnace disclosed in patent publication number CN118565213B and the easy-to-maintain box-type electric furnace disclosed in patent publication number CN220959581U, can both achieve heating of materials.

[0003] However, it was found during use that the existing box-type electric furnace has a relatively simple structure. When annealing the material, the furnace body needs to be cooled slowly. This cooling method causes a waste of heat in the furnace body. After the furnace is opened, it is inconvenient to further cool and discharge the annealed material, resulting in poor practicality. Therefore, an energy-saving box-type electric furnace is urgently needed to improve the above problems. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides an energy-saving box-type electric furnace that sends the workpiece into the heating mechanism through a cooling mechanism, replaces the gas in the heating mechanism and the heat recovery mechanism through a ventilation mechanism, and then heats the workpiece through the heating mechanism. After the workpiece is heated, the heat recovery mechanism slowly recovers the remaining heat in the heating mechanism and converts it into electrical energy used by the cooling mechanism until the workpiece is annealed. Thereafter, the workpiece is thoroughly cooled by the cooling mechanism, thereby improving the practicality of the equipment.

[0005] The energy-saving box-type electric furnace of the present invention comprises a heating mechanism, a heat recovery mechanism, a cooling mechanism and a ventilation mechanism. The heat recovery mechanism and the cooling mechanism are both installed on the heating mechanism, and the ventilation mechanism is installed on the heat recovery mechanism. The ventilation mechanism replaces the gas in the heating mechanism, the heating mechanism heats the workpiece, the heat recovery mechanism recovers the heat, and the cooling mechanism cools the workpiece; The workpiece is sent to the heating mechanism through the cooling mechanism, the gas in the heating mechanism and the heat recovery mechanism is replaced through the ventilation mechanism, and then the workpiece is heated by the heating mechanism. After the workpiece is heated, the remaining heat in the heating mechanism is slowly recovered by the heat recovery mechanism and converted into electrical energy used by the cooling mechanism until the workpiece is annealed. After that, the workpiece is thoroughly cooled by the cooling mechanism, thereby improving the practicality of the equipment.

[0006] Preferably, the heating mechanism includes a lifting mechanism, a base, a box-type electric furnace body, multiple groups of heating elements one and multiple groups of heating elements two, the box-type electric furnace body is installed on the lifting mechanism, the base is installed on the ground below the box-type electric furnace body, multiple groups of heating elements one are all installed on the top of the base, and multiple groups of heating elements two are all installed on the inner wall of the box-type electric furnace body; the workpiece is placed on the top of the base, and the box-type electric furnace body is buckled on the base through the lifting mechanism to make the workpiece in the box-type electric furnace body, and then the workpiece in the box-type electric furnace body is heated by the multiple groups of heating elements one and multiple groups of heating elements two, thereby improving the practicality of the equipment.

[0007] Preferably, the lifting mechanism includes a frame, two sets of sliders, a lifting platform, multiple sets of connecting columns and multiple sets of hydraulic cylinders. The two sets of sliders are slidably installed on the frame, the lifting platform is installed on the two sets of sliders, one end of the multiple sets of connecting columns is installed on the lifting platform, the other end of the multiple sets of connecting columns is installed on the top of the box-type electric furnace body, the multiple sets of hydraulic cylinders are installed on the top of the frame, and the bottoms of the multiple sets of hydraulic cylinders are installed on the lifting platform; the box-type electric furnace body is raised by contracting the hydraulic cylinder, and then the workpiece is placed on the top of the base, and the box-type electric furnace body is buckled on the base by extending the hydraulic cylinder, thereby improving the practicality of the equipment.

[0008] Preferably, the heat recovery mechanism includes a heat exchange box, two groups of water tanks, a circulation pump, two groups of heat exchange pipes and two groups of steam turbine generators. The heat exchange box is buckled on the top of the base, and the middle part of the heat exchange box is slidably installed on multiple groups of connecting columns. The two groups of water tanks are installed on the heat exchange box, and the two groups of water tanks are provided with water inlet valves. The tops of the two groups of water tanks are provided with exhaust valves. The two groups of heat exchange pipes are coiled and installed on the inner wall of the heat exchange box, and one end of the two groups of heat exchange pipes is respectively communicated with the interior of the two groups of water tanks. The circulation pump is installed on the heat exchange pipe, and the circulation pump is located on the outer wall of the heat exchange box. The other end of the heat exchange pipe is connected to the water suction port of the circulation pump. The two groups of steam turbine generators are installed on the top of the heat exchange box, and the two groups of water tanks The exhaust valves are respectively connected to the interior of the two sets of steam turbine generators; after the heating of the workpiece in the box-type electric furnace body is completed, a part of the hydraulic cylinder is contracted to leave a gap between the box-type electric furnace body and the base, so that the heat in the box-type electric furnace body is conveniently transferred to the interior of the heat exchange box, and the circulation pump is turned on at the same time to circulate water in the two sets of water tanks and the two sets of heat exchange tubes. The water in the heat exchange tubes is heated by the heat introduced into the heat exchange box. After the pressure in the two sets of water tanks is sufficient, the exhaust valves of the water tanks are opened to discharge the steam into the steam turbine generator for power generation. After the workpiece is cooled to the required temperature, the hydraulic cylinder continues to contract to make the box-type electric furnace body lift the heat exchange box upward, thereby improving the practicality of the equipment.

[0009] Preferably, the ventilation mechanism includes a vacuum pump, an exhaust pump, two sets of gas pipes and a gas tank, the vacuum pump, the exhaust pump and the gas tank are all installed on the heat exchange box, and the suction port of the vacuum pump and the exhaust port of the exhaust pump are each connected to the interior of the heat exchange box through a set of gas pipes, and the suction port of the exhaust pump is connected to the gas tank; after placing the workpiece, the heat exchange box is buckled on the top of the base, and a gap is left between the box-type electric furnace body and the base, the vacuum pump is turned on to discharge the air in the heat exchange box and the box-type electric furnace body, so that a vacuum environment is formed between the box-type electric furnace body and the interior of the heat exchange box, and then the exhaust pump is turned on to discharge the protective gas in the gas tank into the heat exchange box and the box-type electric furnace body through the exhaust pump, and then the box-type electric furnace body is buckled on the base to heat the workpiece and reduce oxidation of the workpiece, thereby improving the practicality of the equipment.

[0010] Preferably, the cooling mechanism comprises two groups of bases, two groups of slide rails one, two groups of slide rails two, two groups of slide rails three, two groups of support frames, two groups of support plates, two groups of hydraulic cylinders two, multiple groups of exhaust fans and multiple groups of extrusion columns, the two groups of bases are respectively installed on the left and right sides of the base, the two groups of slide rails one are respectively installed on the top of the two groups of bases, the two groups of slide rails two and the two groups of slide rails three are both installed on the top of the base, and the two groups of slide rails two are located between the box-type electric furnace body and the heat exchange box, the two groups of slide rails three are located in the box-type electric furnace body, the two groups of support frames and the two groups of support plates are respectively slidably installed on the two groups of slide rails one, the two groups of hydraulic cylinders two are respectively fixedly installed on the two groups of slide rails one, and one end of the two groups of hydraulic cylinders two are respectively connected to the two groups of support plates, multiple groups of exhaust fans are all installed on the support plates, and multiple groups of extrusion columns are respectively fixedly installed on the two groups of support plates; place the workpiece on the two groups of support frames, and wait for the box-type electric furnace body and the heat exchange box to be After the box is raised, the left hydraulic cylinder 2 is extended to make the left support plate slide on the left base, and the left support frame is pushed to the right by the multiple groups of extrusion columns on the left, so that the left support frame slides on the slide rail 1, slide rail 2 and slide rail 3 in turn until the left support frame is pushed to the middle of the base, and then the workpiece on the left support frame is heated. After the workpiece is annealed, the box-type electric furnace body and the heat exchange box are raised again, and the right hydraulic cylinder 2 is extended to move the right support frame to the middle of the base, and the left support frame is pushed back to the left base through the right support frame, so that the right support frame is located in the middle of the base, and then the workpiece on the right support frame is heated. At the same time, the multiple groups of exhaust fans on the left are running to blow air to the left support frame to thoroughly cool down the workpiece on the left support frame. Then the above steps are repeated to replace the two groups of support frames, thereby improving the practicality of the equipment.

[0011] Preferably, a limit seat and a support rod are provided on the support frame, a push rod is provided on the support rod, and the support rod and the support frame are hinged, the push rod and the limit seat are hinged, and multiple groups of grooves are provided at the bottom of the push rod; by pulling the push rod, the push rod is horizontal, and then the support rod is pulled so that one end of the support rod is inserted into a group of grooves on the push rod to keep the push rod horizontal, and then the push rod is used to squeeze another group of support frames to push the other group of support frames away from the base, thereby improving the practicality of the equipment.

[0012] Preferably, the two groups of gas pipes are provided with connecting valves, and both groups of gas pipes are provided with insulating tanks, which are filled with coolant; the conduction of high temperature to the vacuum pump and exhaust pump is reduced, thereby improving the practicality of the equipment.

[0013] Preferably, both sets of steam turbine generators are provided with condensers, and the condensers on the two sets of steam turbine generators are respectively communicated with the interior of the two sets of water tanks; the steam passing through the steam turbine generators enters the condenser, so that the moisture in the steam is re-condensed into water and discharged into the two sets of water tanks for reuse, and at the same time the condenser discharges the remaining gas, thereby improving the practicality of the equipment.

[0014] Preferably, a one-way valve is provided at the connection between the condenser and the water tank to prevent the steam in the water tank from directly entering the condenser, thereby improving the practicality of the equipment.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the cooperation of the heating mechanism and the heat recovery mechanism, the waste heat in the annealing process is utilized and electricity is generated to provide energy for the cooling mechanism, thus reducing the waste of waste heat; 2. The cooling mechanism can be used to replace the workpiece, improve the processing efficiency of the equipment on the workpiece, and completely cool the workpiece after it reaches the safe temperature; 3. Through the lifting structure, the equipment can reduce the ground space occupied. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a first axonometric structural diagram of the present invention; Figure 2 is a second axonometric structural diagram of the present invention; Figure 3 It is a left-side structural schematic diagram of the present invention; Figure 4 It is a left side cross-sectional structural schematic diagram of the present invention; Figure 5 It is a front view structural schematic diagram of the present invention; Figure 6 It is a schematic diagram of the front cross-sectional structure of the present invention; Figure 7It is a schematic diagram of a top cross-sectional structure of the present invention; Figure 8 This is a first axonometric structural diagram of the cooling mechanism of the present invention; Figure 9 This invention Figure 8 A schematic diagram of the enlarged structure of part A; Figure 10 It is a second axonometric structural schematic diagram of the cooling mechanism of the present invention.

[0017] Markings in the accompanying drawings: 1. Base; 2. Box-type electric furnace body; 3. Heating element 1; 4. Heating element 2; 5. Frame; 6. Slider; 7. Lifting platform; 8. Connecting column; 9. Hydraulic cylinder 1; 10. Heat exchange box; 11. Water tank; 12. Circulation pump; 13. Heat exchange pipe; 14. Steam turbine generator; 15. Vacuum pump; 16. Exhaust pump; 17. Gas pipe; 18. Gas tank; 19. Base; 20. Slide rail 1; 21. Slide rail 2; 22. Slide rail 3; 23. Support frame; 24. Support plate; 25. Hydraulic cylinder 2; 26. Exhaust fan; 27. Extrusion column; 28. Limit seat; 29. ​​Support rod; 30. Push rod; 31. Insulation tank; 32. Condenser. DETAILED DESCRIPTION

[0018] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0019] Example 1: Figures 1 to 10 As shown, an energy-saving box-type electric furnace, a heating mechanism; further comprising a heat recovery mechanism, a cooling mechanism and a ventilation mechanism, the heat recovery mechanism and the cooling mechanism are both installed on the heating mechanism, and the ventilation mechanism is installed on the heat recovery mechanism; The ventilation mechanism replaces the gas in the heating mechanism, the heating mechanism heats the workpiece, the heat recovery mechanism recovers the heat, and the cooling mechanism cools the workpiece; The heating mechanism includes a lifting mechanism, a base 1, a box-type electric furnace body 2, multiple groups of heating elements 1 3 and multiple groups of heating elements 2 4, the box-type electric furnace body 2 is installed on the lifting mechanism, the base 1 is installed on the ground below the box-type electric furnace body 2, the multiple groups of heating elements 1 3 are all installed on the top of the base 1, and the multiple groups of heating elements 2 4 are all installed on the inner wall of the box-type electric furnace body 2; The lifting mechanism includes a frame 5, two sets of sliders 6, a lifting platform 7, multiple sets of connecting columns 8 and multiple sets of hydraulic cylinders 9. The two sets of sliders 6 are slidably mounted on the frame 5, the lifting platform 7 is mounted on the two sets of sliders 6, one end of the multiple sets of connecting columns 8 are mounted on the lifting platform 7, and the other ends of the multiple sets of connecting columns 8 are mounted on the top of the box-type electric furnace body 2, the multiple sets of hydraulic cylinders 9 are mounted on the top of the frame 5, and the bottoms of the multiple sets of hydraulic cylinders 9 are mounted on the lifting platform 7; The heat recovery mechanism includes a heat exchange box 10, two groups of water tanks 11, a circulating pump 12, two groups of heat exchange pipes 13 and two groups of steam turbine generators 14. The heat exchange box 10 is buckled on the top of the base 1, and the middle part of the heat exchange box 10 is slidably installed on multiple groups of connecting columns 8. The two groups of water tanks 11 are installed on the heat exchange box 10. Water inlet valves are provided on the two groups of water tanks 11. Exhaust valves are provided on the tops of the two groups of water tanks 11. The two groups of heat exchange pipes 13 are coiled and installed on the The heat exchange box 10 is mounted on the inner wall thereof, and one end of the two sets of heat exchange tubes 13 are respectively connected to the interior of the two sets of water tanks 11. The circulating pump 12 is installed on the heat exchange tubes 13 and is located on the outer wall of the heat exchange box 10. The other end of the heat exchange tubes 13 is connected to the water intake of the circulating pump 12. The two sets of steam turbine generators 14 are both mounted on the top of the heat exchange box 10, and the exhaust valves of the two sets of water tanks 11 are respectively connected to the interior of the two sets of steam turbine generators 14. The ventilation mechanism includes a vacuum pump 15, an exhaust pump 16, two sets of air pipes 17 and an air tank 18. The vacuum pump 15, the exhaust pump 16 and the air tank 18 are all installed on the heat exchange box 10, and the air intake of the vacuum pump 15 and the exhaust port of the exhaust pump 16 are connected to the interior of the heat exchange box 10 through a set of air pipes 17. The air intake of the exhaust pump 16 is connected to the air tank 18. The two groups of gas pipes 17 are both provided with connecting valves, and the two groups of gas pipes 17 are both sleeved with heat-insulating tanks 31, and the heat-insulating tanks 31 are filled with coolant; The two sets of steam turbine generators 14 are both provided with condensers 32, and the condensers 32 on the two sets of steam turbine generators 14 are respectively communicated with the interiors of the two sets of water tanks 11; The connection between the condenser 32 and the water tank 11 is provided with a one-way valve; The workpiece is sent to the base 1 through the cooling mechanism, and the hydraulic cylinder 9 is extended to buckle the heat exchange box 10 on the base 1, and a gap is left between the box-type electric furnace body 2 and the base 1. The vacuum pump 15 is turned on to exhaust the air in the heat exchange box 10 and the box-type electric furnace body 2, so that a vacuum environment is formed inside the box-type electric furnace body 2 and the heat exchange box 10, and then the exhaust pump 16 is turned on to discharge the protective gas in the gas tank 18 into the heat exchange box 10 and the box-type electric furnace body 2 through the exhaust pump 16. Then, the box-type electric furnace body 2 is buckled on the base 1 to heat the workpiece to reduce the oxidation of the workpiece. After that, the workpiece in the box-type electric furnace body 2 is heated by multiple groups of heating elements 1 and 2 and multiple groups of heating elements 4. After the heating is completed, the hydraulic cylinder 9 is partially contracted to leave a gap between the box-type electric furnace body 2 and the base 1, which is convenient for the box. The heat in the electric furnace body 2 is conducted to the inside of the heat exchange box 10, and the circulation pump 12 is turned on at the same time to make the water circulate in the two groups of water tanks 11 and the two groups of heat exchange tubes 13. The water in the heat exchange tubes 13 is heated by the heat introduced into the heat exchange box 10. After the pressure in the two groups of water tanks 11 is sufficient, the exhaust valve of the water tank 11 is opened to discharge the steam into the steam turbine generator 14 for power generation, and the steam passing through the steam turbine generator 14 enters the condenser 32, so that the moisture in the steam is re-condensed into water and discharged into the two groups of water tanks 11 for reuse. At the same time, the condenser 32 discharges the remaining gas. After the workpiece is cooled to the required temperature, the hydraulic cylinder 9 continues to contract, so that the box-type electric furnace body 2 pushes the heat exchange box 10 upward, and then the workpiece is thoroughly cooled by the cooling mechanism, thereby improving the practicality of the equipment.

[0020] Example 2: Figures 1 to 10 As shown, an energy-saving box-type electric furnace, based on Example 1, further includes: The cooling mechanism includes two groups of bases 19, two groups of slide rails 1 20, two groups of slide rails 21, two groups of slide rails 3 22, two groups of support frames 23, two groups of support plates 24, two groups of hydraulic cylinders 25, multiple groups of exhaust fans 26 and multiple groups of extrusion columns 27. The two groups of bases 19 are respectively installed on the left and right sides of the base 1, the two groups of slide rails 1 20 are respectively installed on the top of the two groups of bases 19, the two groups of slide rails 21 and the two groups of slide rails 3 22 are both installed on the top of the base 1, and the two groups of slide rails 21 Located between the box-type electric furnace body 2 and the heat exchange box 10, two sets of slide rails 3 22 are located in the box-type electric furnace body 2, two sets of support frames 23 and two sets of support plates 24 are respectively slidably installed on the two sets of slide rails 1 20, two sets of hydraulic cylinders 25 are respectively fixedly installed on the two sets of slide rails 1 20, and one end of the two sets of hydraulic cylinders 25 is respectively connected to the two sets of support plates 24, multiple sets of exhaust fans 26 are all installed on the support plates 24, and multiple sets of extrusion columns 27 are respectively fixedly installed on the two sets of support plates 24; The support frame 23 is provided with a limit seat 28 and a support rod 29, and the support rod 29 is provided with a push rod 30. The support rod 29 is hinged to the support frame 23, and the push rod 30 is hinged to the limit seat 28. The bottom of the push rod 30 is provided with multiple groups of grooves. Place the workpiece on the two groups of support frames 23. After the box-type electric furnace body 2 and the heat exchange box 10 are raised, extend the left hydraulic cylinder 25 to make the left support plate 24 slide on the left base 19. Push the left support frame 23 to the right through the left multiple groups of extrusion columns 27 to make the left support frame 23 slide on the slide rail 1 20, the slide rail 2 21 and the slide rail 3 22 in turn until the left support frame 23 is pushed to the middle of the base 1. Extend the hydraulic cylinder 19 to buckle the heat exchange box 10 on the base 1, and leave a gap between the box-type electric furnace body 2 and the base 1. Turn on the vacuum pump 15 to exhaust the air in the heat exchange box 10 and the box-type electric furnace body 2, so that the internal shape of the box-type electric furnace body 2 and the heat exchange box 10 is The vacuum environment is formed, and then the exhaust pump 16 is turned on. The protective gas in the gas tank 18 is discharged into the heat exchange box 10 and the box-type electric furnace body 2 through the exhaust pump 16. Then, the box-type electric furnace body 2 is buckled on the base 1 to heat the workpiece to reduce the oxidation of the workpiece. Then, the workpiece in the box-type electric furnace body 2 is heated by multiple groups of heating elements 1 3 and multiple groups of heating elements 2 4. After the heating is completed, the hydraulic cylinder 1 9 is partially contracted to leave a gap between the box-type electric furnace body 2 and the base 1, so that the heat in the box-type electric furnace body 2 is conveniently conducted to the inside of the heat exchange box 10. At the same time, the circulation pump 12 is turned on to circulate water in the two groups of water tanks 11 and the two groups of heat exchange pipes 13, and is introduced into the heat exchange box 1 0 heats the water in the heat exchange tube 13. When the pressure in the two sets of water tanks 11 is sufficient, the exhaust valve of the water tank 11 is opened to discharge the steam into the steam turbine generator 14 for power generation. The steam passing through the steam turbine generator 14 enters the condenser 32, so that the moisture in the steam is condensed into water again and discharged into the two sets of water tanks 11 for reuse. At the same time, the condenser 32 discharges the remaining gas. After the workpiece is cooled to the required temperature, the hydraulic cylinder 9 continues to contract to make the box-type electric furnace body 2 push the heat exchange box 10 upward, and by pulling the push rod 30, the push rod 30 is leveled, and then the support rod 29 is pulled to insert one end of the support rod 29 into a set of grooves on the push rod 30. , so that the push rod 30 remains in a horizontal state, and then the left support frame 23 is squeezed by the push rod 30, and the right hydraulic cylinder 25 is extended to move the right support frame 23 toward the middle of the base 1, and the left support frame 23 is pushed back to the left base 19 through the right support frame 23, and the right support frame 23 is located in the middle of the base 1, and then the push rod 30 is lowered to heat the workpiece on the right support frame 23. At the same time, the multiple groups of exhaust fans 26 on the left side are operated to blow air to the left support frame 23, and the workpiece on the left support frame 23 is thoroughly cooled. After that, the above steps are repeated repeatedly to replace the two groups of support frames 23 with each other, and the workpiece is continuously annealed, thereby improving the practicality of the equipment.

[0021] The main functions achieved by the present invention are: 1. Through the cooperation of the heating mechanism and the heat recovery mechanism, the waste heat in the annealing process is utilized and electricity is generated to provide energy for the cooling mechanism, thus reducing the waste of waste heat; 2. The cooling mechanism can realize the replacement of workpieces, improve the processing efficiency of the equipment, and completely cool down the workpieces after they reach the safe temperature; 3. Through the lifting structure, the equipment can reduce the ground space occupied.

[0022] The energy-saving box-type electric furnace of the present invention has an installation method, a connection method or a setting method that are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented; the heating element 2 4, the frame 5, the hydraulic cylinder 1 9, the circulating pump 12, the steam turbine generator 14, the vacuum pump 15, the exhaust pump 16, the hydraulic cylinder 2 25, the exhaust fan 26 and the condenser 32 of the energy-saving box-type electric furnace of the present invention are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for technical personnel in this field to pay creative labor.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An energy-saving box-type electric furnace, heating mechanism; characterized in that, It also includes a heat recovery mechanism, a cooling mechanism and a ventilation mechanism, wherein the heat recovery mechanism and the cooling mechanism are both installed on the heating mechanism, and the ventilation mechanism is installed on the heat recovery mechanism; The ventilation mechanism replaces the gas in the heating mechanism, the heating mechanism heats the workpiece, the heat recovery mechanism recovers the heat, and the cooling mechanism cools the workpiece.

2. An energy-saving box-type electric furnace according to claim 1, characterized in that: The heating mechanism comprises a lifting mechanism, a base (1), a box-type electric furnace body (2), a plurality of groups of heating elements one (3) and a plurality of groups of heating elements two (4); the box-type electric furnace body (2) is mounted on the lifting mechanism, the base (1) is mounted on the ground below the box-type electric furnace body (2), the plurality of groups of heating elements one (3) are all mounted on the top of the base (1), and the plurality of groups of heating elements two (4) are all mounted on the inner wall of the box-type electric furnace body (2).

3. An energy-saving box-type electric furnace according to claim 2, characterized in that: The lifting mechanism comprises a frame (5), two sets of sliders (6), a lifting platform (7), multiple sets of connecting columns (8) and multiple sets of hydraulic cylinders (9), the two sets of sliders (6) are slidably mounted on the frame (5), the lifting platform (7) is mounted on the two sets of sliders (6), one end of the multiple sets of connecting columns (8) are mounted on the lifting platform (7), the other ends of the multiple sets of connecting columns (8) are mounted on the top of the box-type electric furnace body (2), the multiple sets of hydraulic cylinders (9) are mounted on the top of the frame (5), and the bottoms of the multiple sets of hydraulic cylinders (9) are mounted on the lifting platform (7).

4. An energy-saving box-type electric furnace as claimed in claim 2, characterized in that: The heat recovery mechanism comprises a heat exchange box (10), two groups of water tanks (11), a circulating pump (12), two groups of heat exchange pipes (13) and two groups of steam turbine generators (14). The heat exchange box (10) is buckled on the top of the base (1), and the middle of the heat exchange box (10) is slidably installed on multiple groups of connecting columns (8). The two groups of water tanks (11) are both installed on the heat exchange box (10). Water inlet valves are provided on the two groups of water tanks (11). Exhaust valves are provided on the tops of the two groups of water tanks (11). The two groups of heat exchange pipes (13) are coiled and installed. The heat exchange tubes (13) are mounted on the inner wall of the heat exchange box (10), and one end of the two sets of heat exchange pipes (13) is communicated with the interior of the two sets of water tanks (11), respectively. The circulating pump (12) is mounted on the heat exchange tubes (13), and the circulating pump (12) is located on the outer wall of the heat exchange box (10), and the other end of the heat exchange tubes (13) is connected to the water suction port of the circulating pump (12). The two sets of steam turbine generators (14) are mounted on the top of the heat exchange box (10), and the exhaust valves of the two sets of water tanks (11) are communicated with the interior of the two sets of steam turbine generators (14).

5. The energy-saving box-type electric furnace according to claim 2, characterized in that: The ventilation mechanism includes a vacuum pump (15), an exhaust pump (16), two sets of air pipes (17) and an air tank (18). The vacuum pump (15), the exhaust pump (16) and the air tank (18) are all installed on the heat exchange box (10), and the air intake of the vacuum pump (15) and the exhaust port of the exhaust pump (16) are each connected to the interior of the heat exchange box (10) through a set of air pipes (17), and the air intake of the exhaust pump (16) is connected to the air tank (18).

6. An energy-saving box-type electric furnace as claimed in claim 2, characterized in that: The cooling mechanism comprises two groups of bases (19), two groups of slide rails 1 (20), two groups of slide rails 2 (21), two groups of slide rails 3 (22), two groups of support frames (23), two groups of support plates (24), two groups of hydraulic cylinders 2 (25), multiple groups of exhaust fans (26) and multiple groups of extrusion columns (27), the two groups of bases (19) are respectively installed on the left and right sides of the base (1), the two groups of slide rails 1 (20) are respectively installed on the top of the two groups of bases (19), the two groups of slide rails 2 (21) and the two groups of slide rails 3 (22) are both installed on the top of the base (1), and the two groups of slide rails 2 (2 1) is located between the box-type electric furnace body (2) and the heat exchange box (10), two sets of slide rails (22) are located in the box-type electric furnace body (2), two sets of support frames (23) and two sets of support plates (24) are respectively slidably installed on the two sets of slide rails (20), two sets of hydraulic cylinders (25) are respectively fixedly installed on the two sets of slide rails (20), and one end of the two sets of hydraulic cylinders (25) is respectively connected to the two sets of support plates (24), multiple sets of exhaust fans (26) are all installed on the support plates (24), and multiple sets of extrusion columns (27) are respectively fixedly installed on the two sets of support plates (24).

7. An energy-saving box-type electric furnace according to claim 6, characterized in that: The support frame (23) is provided with a limit seat (28) and a support rod (29), and the support rod (29) is provided with a push rod (30). The support rod (29) is hinged to the support frame (23), and the push rod (30) is hinged to the limit seat (28). The bottom of the push rod (30) is provided with multiple groups of grooves.

8. The energy-saving box-type electric furnace according to claim 5, characterized in that: The two groups of gas delivery pipes (17) are both provided with connecting valves, and the two groups of gas delivery pipes (17) are both sleeved with heat-insulating tanks (31), and the heat-insulating tanks (31) are filled with cooling liquid.

9. The energy-saving box-type electric furnace according to claim 4, characterized in that: Condensers (32) are provided on both sets of steam turbine generators (14), and the condensers (32) on the two sets of steam turbine generators (14) are respectively communicated with the interiors of the two sets of water tanks (11).

10. The energy-saving box-type electric furnace according to claim 9, characterized in that: A one-way valve is provided at the connection between the condenser (32) and the water tank (11).

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