CN219347284U

CN219347284U - Dustproof structure of medium-high frequency induction furnace coil

Info

Publication number: CN219347284U
Application number: CN202320224419.XU
Authority: CN
Inventors: 姜兴华; 王京骋
Original assignee: Webster Induction Technology Changzhou Co ltd
Current assignee: Webster Induction Technology Changzhou Co ltd
Priority date: 2023-02-15
Filing date: 2023-02-15
Publication date: 2023-07-14
Anticipated expiration: 2033-02-15

Abstract

The utility model provides a dustproof structure of a coil of a medium-high frequency induction furnace, which is used for dustproof protection of the coil of the induction furnace, wherein the coil is sleeved on a furnace body of the induction furnace, a magnetic yoke is sleeved on the periphery of the coil, furnace top refractory bricks are arranged above the coil and the magnetic yoke, the dustproof structure is arranged between the magnetic yoke and the furnace top refractory bricks, and comprises a first layer of structure, is paved above the magnetic yoke and extends to the contact surface of the coil and the magnetic yoke; a second layer structure laid over the first layer structure and extending to a contact surface of the first layer structure and the coil; and the third layer structure is paved among the second layer structure, the coil and the furnace top refractory bricks. The dustproof structure is arranged between the furnace top refractory bricks and the magnetic yoke, so that scrap iron and impurities can be prevented from entering the coil, the service life of the induction furnace and the reliability of the whole induction furnace are improved, and the maintenance cost of the later-stage coil is reduced.

Description

Dustproof structure of medium-high frequency induction furnace coil

Technical Field

The utility model relates to the technical field of electric furnace equipment, in particular to a dustproof structure of a coil of a medium-high frequency induction furnace.

Background

The medium-high frequency induction furnace is a common melting device in the casting field, the coil is a core component of the medium-high frequency induction furnace, in the use process of the induction furnace, on-site scrap iron and dust easily enter and adhere to the coil to form inter-turn short circuit, so that the coil is ignited, potential safety hazards exist, the service life of the induction furnace can be reduced, and the later maintenance cost is increased. Currently, there is no dust-proof structure or device specifically for induction furnace coils.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a dustproof structure of a coil of a medium-high frequency induction furnace, which is used for dustproof protection of the coil of the induction furnace, wherein the coil is sleeved on a furnace body of the induction furnace, a magnetic yoke is sleeved on the periphery of the coil, and furnace top refractory bricks are arranged above the coil and the magnetic yoke; a second layer structure laid over the first layer structure and extending to a contact surface of the first layer structure and the coil; and the third layer structure is paved among the second layer structure, the coil and the furnace top refractory bricks.

In one embodiment, the first layer structure is constructed of a material having waterproof and insulating properties.

In one embodiment, the first layer structure is a teflon plate.

In one embodiment, the material of the second layer structure is composed of a material having thermal and shock-resistant properties.

In one embodiment, the second layer structure is a ceramic fiber blanket.

In one embodiment, the third layer structure is composed of a material having insulation properties.

In one embodiment, the third layer structure is a hard mica board.

In an embodiment, a sealing ring is mounted between the second layer structure and the coil.

In one embodiment, the seal ring is a dust packing.

In an embodiment, a gap between the dustproof structure and the furnace body is filled with sealing filler.

The dustproof structure is arranged between the furnace top refractory bricks and the magnetic yoke, so that scrap iron and impurities can be prevented from entering the coil, the service life of the induction furnace and the reliability of the whole induction furnace are improved, and the maintenance cost of the later-stage coil is reduced; and the dustproof structures are made of insulating and heat-resistant materials, so that the coil can be further protected.

Drawings

Fig. 1 is a schematic view showing the structure of an induction furnace according to the present utility model.

Fig. 2 is an enlarged schematic view of the dust-proof structure of the present utility model.

Detailed Description

Please refer to fig. 1-2. Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. It should be understood that numerous specific details are set forth in the following description in order to provide a thorough understanding of the present utility model, however, that the present utility model may be practiced in other ways than as described herein, and that the scope of the utility model is therefore not limited to the specific embodiments disclosed below.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the particular embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1 and 2, the dustproof structure 10 of a coil of a medium-high frequency induction furnace is used for dustproof protection of the coil 20 in the induction furnace, the induction furnace comprises the coil 20, a furnace top refractory brick 30 and a magnetic yoke 40, the coil is sleeved on a furnace body of the induction furnace, the magnetic yoke 40 is sleeved on the periphery of the coil 20, and the furnace top refractory brick 30 is arranged above the coil 20 and the magnetic yoke 40; specifically, the dust-proof structure 10 is located between the roof fire brick 30 and the yoke 40, and is looped between the coil 20 and the yoke 40.

The dustproof structure 1 is a multi-layer protection structure and comprises a first layer structure 11, a second layer structure 12 and a third layer structure 13. The first layer structure 11 is laid above the magnetic yoke 40 and extends to the contact surface between the coil 20 and the magnetic yoke 40, and the material of the first layer structure 11 has a waterproof effect, so that external liquid cannot enter the coil in the use process of the induction furnace; since the coil 20 is charged and the yoke 40 is not charged, the first layer structure 11 also has an insulating property, thereby protecting the yoke 40 and the coil 20; the first layer structure 11 may be a teflon plate having excellent high temperature resistance in addition to waterproof, insulating properties.

The second layer structure 12 is paved on the first layer structure 11 and extends to the contact surface of the first layer structure 11 and the coil 20, and the second layer structure 12 has the characteristics of heat preservation and insulation, so that the heat loss of the induction furnace in the use process is reduced; in addition, since the first layer structure 11 is made of waterproof material, has no water absorption and has a certain hardness, the second layer structure 12 has a certain tensile strength and shock resistance, and can play a role of shock resistance and buffering when the induction furnace is in use, so as to protect the coil 20 from the impact shock of the first layer structure 11. The second layer structure 12 may be a ceramic fiber blanket, which is mainly made of fibrous lightweight refractory materials (ceramic fibers) and is formed by a special process.

The sealing ring 121 is further disposed between the second layer structure 12 and the coil, the sealing ring 121 is disposed around the periphery of the coil 20, and the outer diameter of the sealing ring 121 is equal to the inner diameter of the second layer structure 12, so that the dustproof performance of the dustproof structure 1 can be further improved.

The third layer structure 13 is paved among the second layer structure 12, the coil 20 and the furnace top refractory bricks 30, and has the insulation effect; the third layer structure 13 may be a hard mica plate having excellent heat resistance and flame retardancy in addition to insulation.

In addition, the gaps between the dustproof structure 11 and the furnace body are filled with sealing filler 14, and the sealing filler 14 can be sealing silica gel.

In this embodiment, only one layer of the first layer 11, the second layer 12 and the third layer 13 is laid, and in other embodiments, the dust-proof structure 1 may include multiple layers of the first layer 11, the second layer 12 and the third layer 13 according to actual needs. In addition, when the teflon plate of the first layer structure 11 is used in the induction furnace, the teflon plate can expand and tightly prop against the ceramic fiber blanket of the second layer structure 12 by utilizing the characteristics of thermal expansion and cold contraction, so that the sealing and dust preventing effects are further improved.

In summary, the dustproof structure 1 is arranged between the furnace top refractory bricks 30 and the magnet yoke 40, so that the effect of sealing and dustproof can be achieved, scrap iron and impurities are prevented from entering the coil 20, the service life of the induction furnace and the reliability of the whole induction furnace are improved, and the maintenance cost of a later-stage coil is reduced; and the dustproof structure 1 is made of insulating and heat-resistant materials, so that the magnet yoke 40 and the coil 20 can be further protected.

Claims

1. A dustproof construction of medium-high frequency induction furnace coil for the dustproof protection of induction furnace's coil, the coil cover is established on the furnace body of induction furnace, the yoke cover is established the coil periphery, the coil with yoke top is the furnace roof resistant firebrick, its characterized in that, dustproof construction sets up the yoke with between the furnace roof resistant firebrick includes

A first layer structure laid over the yoke and extending to a contact surface of the coil and the yoke;

a second layer structure laid over the first layer structure and extending to a contact surface of the first layer structure and the coil;

and the third layer structure is paved among the second layer structure, the coil and the furnace top refractory bricks.

2. A dust-proof structure of a coil of a medium-high frequency induction furnace according to claim 1, characterized in that said first layer structure is composed of a material having water-proof and insulating properties.

3. A dust-proof structure of a medium-high frequency induction furnace coil according to claim 2, characterized in that said first layer structure is a teflon plate.

4. A dust-proof structure of a coil of a medium-high frequency induction furnace according to claim 1, wherein said second layer structure is composed of a material having heat-insulating and shock-resistant properties.

5. The dust-proof structure of a coil of a medium-high frequency induction furnace according to claim 4, wherein said second layer structure is a ceramic fiber blanket.

6. The dust-proof structure of a coil of a medium-high frequency induction furnace according to claim 1, wherein the third layer structure is made of a material having insulation properties.

7. A dust prevention structure for a coil of a medium-high frequency induction furnace according to claim 6, wherein said third layer structure is a hard mica plate.

8. The dustproof structure of a coil of a medium-high frequency induction furnace according to claim 1, wherein a sealing ring is installed between the second layer structure and the coil.

9. The dust-proof structure of a coil of a medium-high frequency induction furnace according to claim 8, wherein the seal ring is a dust-proof packing.

10. The dustproof structure of a coil of a medium-high frequency induction furnace according to claim 1, wherein a gap between the dustproof structure and the furnace body is filled with a sealing filler.