Energy-saving intermediate frequency furnace for casting smelting

Abstract

The utility model discloses an energy-saving intermediate frequency furnace for casting smelting, which comprises a base, and the left side of the top of the base is fixedly connected with an intermediate frequency furnace assembly through two first supporting rods; a waste heat utilization mechanism is fixedly installed on the right side of the top of the base through two second supporting rods and comprises a waste heat recycling box, a fan is fixedly installed on the top of the left side of the waste heat recycling box, and a flow dividing shell is fixedly connected to the top of the inner wall of the waste heat recycling box. The bottom of the flow dividing shell is fixedly connected with a plurality of heat outlet heads communicating with the flow dividing shell, and the air suction end of the draught fan communicates with the intermediate frequency furnace assembly. The energy-saving type intermediate frequency furnace for casting smelting is reasonable in structural design and convenient to use, has a certain waste heat recovery function, can recover heat generated when the intermediate frequency furnace works and dry some wet materials, and therefore unnecessary waste is avoided, and the energy-saving type intermediate frequency furnace has good energy-saving performance.

Description

Technical Field

[0001] The utility model relates to the technical field of medium frequency furnaces, in particular to an energy-saving medium frequency furnace used for smelting castings. Background Art

[0002] A medium frequency furnace is a power supply device that converts industrial frequency 50HZ alternating current into medium frequency, converts three-phase industrial frequency alternating current into direct current after rectification, and then converts direct current into adjustable medium frequency current to supply medium frequency alternating current flowing through capacitors and induction coils, generates high-density magnetic lines in the induction coil, and cuts the metal material contained in the induction coil, generates large eddy currents in the metal material, and heats the metal using the principle of electromagnetic induction. Most of the medium frequency furnaces currently used for casting smelting do not have a certain waste heat recovery function. The heat generated during operation will cause unnecessary waste and have low energy saving. For this reason, we propose an energy-saving medium frequency furnace for casting smelting to solve the problems raised in the above background technology. Utility Model Content

[0003] The purpose of the utility model is to provide an energy-saving medium frequency furnace for smelting castings to solve the problems raised in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical solution: an energy-saving medium-frequency furnace for casting smelting, comprising a base, the left side of the top of the base being fixedly connected to a medium-frequency furnace assembly through two first support rods;

[0005] A waste heat utilization mechanism is fixedly installed on the right side of the top of the base through two second support rods, and the waste heat utilization mechanism includes a waste heat recovery box, a fan is fixedly installed on the top of the left side of the waste heat recovery box, a diversion shell is fixedly connected to the top of the inner wall of the waste heat recovery box, and a plurality of heat outlet heads interconnected with the diversion shell are fixedly connected to the bottom of the diversion shell, the air suction end of the fan is interconnected with the intermediate frequency furnace assembly, and the air outlet end is interconnected with the diversion shell, and the right side of the waste heat recovery box is fixedly connected with a first feeding pipe interconnected with the diversion shell, a transmission shell is fixedly installed on the front of the waste heat recovery box, and a drive motor is fixedly installed on the outer side of the transmission shell. Rolling bearings are symmetrically installed on the inner wall of the waste heat recovery box, and a rotating rod is rotatably connected in the rolling bearing. One end of the drive motor output shaft and the rotating rod penetrate the transmission shell and extend into the waste heat recovery box. The drive motor output shaft and the rotating rod surface inside the waste heat recovery box are fixedly connected with a stirring rod. A driving wheel is fixedly connected to the surface of the drive motor output shaft and located inside the transmission shell. A driven wheel is fixedly connected to the surface of the rotating rod corresponding to the position of the driving wheel. The driving wheel and the two driven wheels are connected by belt drive. The bottom of the right side of the waste heat recovery box is fixedly connected to a first discharge pipe that is interconnected with it.

[0006] Furthermore, a sealing plug is provided at the top end of the first feeding pipe, and sealing rings are fixedly connected to the positions of the inner wall of the waste heat recovery box corresponding to the output shaft of the driving motor and the rotating rod.

[0007] Furthermore, the intermediate frequency furnace assembly includes an outer shell, which is fixedly connected to the top ends of the two first connecting rods, an inner shell is provided inside the outer shell, a second feeding pipe which is interconnected with the inner shell is fixedly connected to the top, the top of the second feeding pipe passes through the outside of the outer shell, an induction coil is wound around the outer side of the inner shell, a second discharge pipe which is interconnected with the inner shell is fixedly connected to the bottom, and the bottom end of the second discharge pipe passes through the outside of the outer shell.

[0008] Furthermore, a heat insulating layer is fixedly connected to the inner wall of the outer shell, and the inner liner is fixedly connected to the bottom of the inner wall of the heat insulating layer.

[0009] Furthermore, a sealing cover is installed at the top end of the second feeding pipe.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model generates heat when the medium frequency furnace component is working, and the fan can collect the heat and discharge it into the diverter shell. The material to be dried can be added to the waste heat recovery box through the first feeding pipe, and the heat is evenly dissipated through the multiple heat outlet heads at the bottom of the diverter shell. After the driving motor is turned on, its output shaft drives the active wheel to rotate. Under the transmission of the belt, the driven wheel can drive the rotating rod to rotate under the connection of the rolling bearing, and then the stirring rods on the surface of the output shaft of the driving motor and the surface of the rotating rod are used to continuously stir the material to provide a better drying effect for the material. After drying, the material can be discharged through the first discharge pipe. The energy-saving medium frequency furnace used for casting smelting has a reasonable structural design, is easy to use, and has a certain waste heat recovery function. The heat generated when the medium frequency furnace is working can be recovered and some wet materials can be dried, thereby avoiding unnecessary waste and having good energy-saving performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a main structural cross-sectional view of the utility model;

[0013] Figure 2 This is a main structural cross-sectional view of the waste heat utilization mechanism of the utility model;

[0014] Figure 3 It is a partial top view of the structure section of the waste heat utilization mechanism of the utility model;

[0015] Figure 4 This is a main structural cross-sectional view of the medium frequency furnace assembly of the utility model.

[0016] In the figure: 1 base, 2 first support rod, 3 intermediate frequency furnace assembly, 31 outer shell, 32 inner tank, 33 second feeding pipe, 34 induction coil, 35 second discharge pipe, 36 insulation layer, 37 cover, 4 second support rod, 5 waste heat utilization mechanism, 51 waste heat recovery box, 52 fan, 53 splitter shell, 54 heat outlet head, 55 first feeding pipe, 56 transmission shell, 57 drive motor, 58 rolling bearing, 59 rotating rod, 510 stirring rod, 511 driving wheel, 512 driven wheel, 513 belt, 514 first discharge pipe, 515 sealing plug, 516 sealing ring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4 An energy-saving medium-frequency furnace for smelting castings includes a base 1, and a medium-frequency furnace component 3 is fixedly connected to the left side of the top of the base 1 through two first support rods 2.

[0019] A waste heat utilization mechanism 5 is fixedly installed on the right side of the top of the base 1 through two second support rods 4. The waste heat utilization mechanism 5 includes a waste heat recovery box 51. A fan 52 is fixedly installed on the top of the left side of the waste heat recovery box 51. A diverter shell 53 is fixedly connected to the top of the inner wall of the waste heat recovery box 51. The bottom of the diverter shell 53 is fixedly connected to a plurality of heat outlet heads 54 interconnected with it. The air suction end of the fan 52 is interconnected with the intermediate frequency furnace assembly 3, and the air outlet end is interconnected with the diverter shell 53. A first feeding pipe 55 interconnected with it is fixedly connected to the right side of the waste heat recovery box 51. A transmission shell 56 is fixedly installed on the front of the waste heat recovery box 51. A driving motor 57 is fixedly installed on the outer side of the transmission shell 56. Rolling bearings 5 ​​are symmetrically installed on the inner wall of the waste heat recovery box 51. 8. A rotating rod 59 is rotatably connected in the rolling bearing 58. The output shaft of the driving motor 57 and one end of the rotating rod 59 both penetrate the transmission housing 56 and extend to the inside of the waste heat recovery box 51. The surfaces of the output shaft of the driving motor 57 and the rotating rod 59 located inside the waste heat recovery box 51 are fixedly connected with a stirring rod 510. A driving wheel 511 is fixedly connected to the surface of the output shaft of the driving motor 57 and located inside the transmission housing 56. A driven wheel 512 is fixedly connected to the surface of the rotating rod 59 corresponding to the position of the driving wheel 511. The driving wheel 511 and the two driven wheels 512 are connected through a belt 513. A first discharge pipe 514 that is interconnected with the waste heat recovery box 51 is fixedly connected to the bottom of the right side. A valve is installed on the first discharge pipe 514.

[0020] Specifically, a sealing plug 515 is provided at the top of the first feeding pipe 55 , and sealing rings 516 are fixedly connected to the positions of the output shaft of the driving motor 57 and the rotating rod 59 on the inner wall of the waste heat recovery box 51 .

[0021] Specifically, the medium frequency furnace assembly 3 includes an outer shell 31, which is fixedly connected to the top ends of the two first connecting rods 2. An inner shell 32 is provided inside the outer shell 31. A second feeding pipe 33 interconnected with the inner shell 32 is fixedly connected to the top of the inner shell 32. The top of the second feeding pipe 33 passes through the outside of the outer shell 31. An induction coil 34 is wound around the outer side of the inner shell 32. A second discharge pipe 35 interconnected with the inner shell 32 is fixedly connected to the bottom of the inner shell 32. The bottom end of the second discharge pipe 35 passes through the outside of the outer shell 31. A valve is installed on the second discharge pipe 35.

[0022] Specifically, a heat insulating layer 36 is fixedly connected to the inner wall of the outer shell 31, and the inner liner 32 is fixedly connected to the bottom of the inner wall of the heat insulating layer 36. The heat insulating layer 36 can prevent the heat generated during operation from being quickly dissipated.

[0023] Specifically, a sealing cover 37 is installed at the top end of the second feeding pipe 33 , and the sealing cover 37 can seal from the top end of the second feeding pipe 33 to prevent heat from flowing out.

[0024] The energy-saving medium frequency furnace used for casting smelting has a reasonable structural design, is easy to use, and has a certain waste heat recovery function. It can recover the heat generated when the medium frequency furnace is working and dry some wet materials, thereby avoiding unnecessary waste and having good energy-saving performance.

[0025] When in use, the medium frequency furnace assembly 3 generates heat when working, and the fan 52 can collect and discharge it into the diverter shell 53. The material to be dried can be added to the waste heat recovery box 51 through the first feeding pipe 55. The heat is evenly dissipated through the multiple heat outlet heads 54 at the bottom of the diverter shell 53. After the drive motor 57 is turned on, its output shaft drives the active wheel 511 to rotate. Under the transmission of the belt 513, the driven wheel 512 can drive the rotating rod 59 to rotate under the connection with the rolling bearing 58, and then the stirring rod 510 on the surface of the output shaft of the drive motor 57 and the surface of the rotating rod 59 is used to continuously stir the material to provide a better drying effect for the material. After drying, the material can be discharged through the first discharge pipe 514.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving medium frequency furnace for casting smelting, comprising a base (1), characterized in that: The left side of the top of the base (1) is fixedly connected to a medium frequency furnace assembly (3) via two first support rods (2); A waste heat utilization mechanism (5) is fixedly installed on the right side of the top of the base (1) through two second support rods (4), and the waste heat utilization mechanism (5) includes a waste heat recovery box (51), a fan (52) is fixedly installed on the top of the left side of the waste heat recovery box (51), a diversion shell (53) is fixedly connected to the top of the inner wall of the waste heat recovery box (51), and a plurality of heat outlet heads (54) that are interconnected with the diversion shell (53) are fixedly connected to the bottom of the diversion shell (53), the air suction end of the fan (52) is interconnected with the intermediate frequency furnace assembly (3), and the air outlet end is interconnected with the diversion shell (53), the right side of the waste heat recovery box (51) is fixedly connected with a first feeding pipe (55) that is interconnected with the diversion shell (53), a transmission shell (56) is fixedly installed on the front of the waste heat recovery box (51), and a driving motor (57) is fixedly installed on the outer side of the transmission shell (56), and the inner wall of the waste heat recovery box (51) is fixedly connected with a plurality of heat outlet heads (54) that are interconnected with the diversion shell (53). A rolling bearing (58) is symmetrically installed, and a rotating rod (59) is rotatably connected inside the rolling bearing (58). The output shaft of the drive motor (57) and one end of the rotating rod (59) both penetrate the transmission housing (56) and extend into the waste heat recovery box (51). The surfaces of the output shaft of the drive motor (57) and the rotating rod (59) located inside the waste heat recovery box (51) are fixedly connected with a stirring rod (510). A driving wheel (511) is fixedly connected to the surface of the output shaft of the drive motor (57) and located inside the transmission housing (56). A driven wheel (512) is fixedly connected to the surface of the rotating rod (59) at a position corresponding to the driving wheel (511). The driving wheel (511) and the two driven wheels (512) are both connected by a belt (513). The bottom of the right side of the waste heat recovery box (51) is fixedly connected with a first discharge pipe (514) that is interconnected with the first discharge pipe (514).

2. The energy-saving medium frequency furnace for casting smelting according to claim 1 is characterized in that: A sealing plug (515) is provided at the top end of the first feeding pipe (55), and sealing rings (516) are fixedly connected to the positions of the output shaft of the driving motor (57) and the rotating rod (59) on the inner wall of the waste heat recovery box (51).

3. The energy-saving medium frequency furnace for casting smelting according to claim 2 is characterized in that: The medium frequency furnace assembly (3) includes an outer shell (31), the outer shell (31) is fixedly connected to the top ends of the two first connecting rods (2), an inner shell (32) is provided inside the outer shell (31), the top of the inner shell (32) is fixedly connected to a second feeding pipe (33) interconnected with the inner shell (32), the top of the second feeding pipe (33) passes through the outside of the outer shell (31), an induction coil (34) is wound around the outside of the inner shell (32), the bottom of the inner shell (32) is fixedly connected to a second discharge pipe (35) interconnected with the inner shell (32), the bottom end of the second discharge pipe (35) passes through the outside of the outer shell (31).

4. The energy-saving medium frequency furnace for casting smelting according to claim 3 is characterized in that: A heat insulation layer (36) is fixedly connected to the inner wall of the outer shell (31), and the inner liner (32) is fixedly connected to the bottom of the inner wall of the heat insulation layer (36).

5. The energy-saving medium frequency furnace for casting smelting according to claim 4 is characterized in that: A sealing cover (37) is installed at the top end of the second feeding pipe (33).

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