Pool-type electromagnetic insulation furnace

Abstract

The present invention discloses a pool-type electromagnetic insulation furnace, which comprises a housing and a body. The body is provided with a heat insulation cavity, a feeding cavity and a discharging cavity with interconnected bottoms. The upper end of the heat insulation cavity is provided with an opening, and a furnace cover is arranged above the opening of the heat insulation cavity. The furnace cover comprises a supporting bottom plate and internal fiber cotton of the furnace cover. A casting material flange is arranged above the supporting bottom plate. A receiving cavity is formed in the internal fiber cotton of the furnace cover, and the casting material flange is located in the receiving cavity. Installation openings are formed in both the casting material flange and the supporting bottom plate, and an electromagnetic heating element is placed in the installation openings. An outer flange is arranged at the top of the electromagnetic heating element, and an inner flange matching with the outer flange is arranged on the casting material flange. A flange lifting hook is arranged on the casting material flange. The present invention has high heat insulation performance, the electromagnetic heating element is convenient to maintain, and the heat insulation state can be maintained during maintenance.

Description

Technical Field

[0001] The present invention belongs to the field of holding furnaces, and more specifically relates to a pool-type electromagnetic holding furnace. Background Art

[0002] In the prior art, for the holding furnace of molten aluminum, heating wires are generally arranged outside the accommodating cavity to heat the accommodating cavity. This heating method results in poor heating efficiency and low thermal energy utilization rate. Moreover, part of the heat of the heating wires will be transferred outward, causing the shell to heat up, with a large amount of heat, and external cooling is also required, seriously increasing the cost.

[0003] The applicant's prior application, with the application number 201920959276.0, discloses a magnetic induction heating molten aluminum holding furnace, which includes a shell. A body is formed by casting concrete inside the thermal insulation cotton. A holding cavity is formed in the middle part of the body. A feeding cavity and a discharging cavity are respectively formed in the body on both sides of the holding cavity. A graphite cylinder with a hollow structure is arranged at the heating port. The bottom of the graphite cylinder is closed. A carrier with a hollow cylindrical structure is arranged inside the graphite cylinder. Alloy wires are arranged in a spiral shape in the wall of the carrier, and the alloy wires at the lower end penetrate upward from the inside of the carrier. The obtained magnetic induction heating molten aluminum holding furnace of the present utility model utilizes the arrangement of graphite and alloy wires, and makes the graphite cylinder heat through a magnetic field, thereby insulating the molten aluminum, with high thermal utilization rate.

[0004] However, its heat preservation performance is not high, and it is not easy to maintain the entire heating component (graphite cylinder, carrier, alloy wire). Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a pool-type electromagnetic holding furnace with high heat preservation performance, convenient maintenance of the electromagnetic heating body, and capable of maintaining the heat preservation state during maintenance.

[0006] To achieve the above object, the present invention provides the following technical solution: A pool-type electromagnetic holding furnace includes a shell and a body. A holding cavity, a feeding cavity, and a discharging cavity with interconnected bottoms are arranged on the body. An opening is arranged at the upper end of the holding cavity. A furnace cover is arranged above the opening of the holding cavity. The furnace cover includes a supporting bottom plate and fiber cotton inside the furnace cover. A casting material flange is arranged above the supporting bottom plate. A containing cavity is formed in the fiber cotton inside the furnace cover. The casting material flange is located in the containing cavity. Installation openings are formed on both the casting material flange and the supporting bottom plate. An electromagnetic heating body is placed in the installation opening. An outer flange is arranged at the top of the electromagnetic heating body. An inner flange matched with the outer flange is arranged on the casting material flange. A flange lifting hook is arranged on the casting material flange.

[0007] Furthermore, the internal fiber cotton of the furnace lid includes a furnace lid internal fiber cotton seat body and a furnace lid internal fiber cotton cover body. The accommodation cavity is located on the furnace lid internal fiber cotton seat body and penetrates through to the top surface of the furnace lid internal fiber cotton seat body. The furnace lid internal fiber cotton cover body covers the accommodation cavity of the furnace lid internal fiber cotton seat body, and a step is provided between the furnace lid internal fiber cotton cover body and the furnace lid internal fiber cotton seat body.

[0008] Furthermore, a part of the furnace lid internal fiber cotton seat body is padded between the support bottom plate and the castable flange, and another part is wrapped outside the castable flange.

[0009] Furthermore, the furnace lid further includes a furnace lid top plate and a furnace lid side plate. The furnace lid top plate and the furnace lid side plate form a box shape to cover the support bottom plate and the internal fiber cotton of the furnace lid inside.

[0010] Furthermore, the support bottom plate includes a furnace lid fiber board at the bottom layer and a furnace lid nano board at the top layer. A number of furnace lid fiber board hanging hooks are provided on the furnace lid fiber board, and the top ends of the furnace lid fiber board hanging hooks extend above the internal fiber cotton of the furnace lid.

[0011] Furthermore, a crucible wrapping fiber paper is provided on the upper side wall of the electromagnetic heating element.

[0012] Furthermore, an electromagnetic high-temperature wire and internal crucible fiber cotton are provided inside the electromagnetic heating element. The internal crucible fiber cotton is located at the upper opening of the electromagnetic heating element.

[0013] Furthermore, the housing includes a bottom plate and side plates. Between the bottom plate and the main body, a bottom calcium silicate board, a bottom insulating brick, and a bottom light material are provided in sequence from outside to inside; between the side plates and the main body, a side calcium silicate board and side fiber cotton are provided in sequence from outside to inside.

[0014] Furthermore, a gravity flap is provided inside the feed cavity, and the gravity flap is hinged to the main body.

[0015] Furthermore, a heat preservation valve is provided inside the discharge cavity, and a microwave inductor is provided above the heat preservation valve corresponding to the discharge cavity. The microwave inductor is electrically connected to the heat preservation valve.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. By providing an installation opening on the support bottom plate, the electromagnetic heating element passes through the installation opening and enters the heat preservation cavity. When repairing the electromagnetic heating element, there is no need to open the entire furnace lid, resulting in less heat loss;

[0017] When repairing the electromagnetic heating element, the internal limit cover body of the furnace lid can be used to cover above the installation opening to form a complete furnace lid, improving the heat preservation performance at this time;

[0018] The crucible or the entire furnace lid can be hoisted independently;

[0019] Enhance the heat preservation performance of the main body and make the structure more reasonable;

[0020] During the discharging and material taking processes, effective heat preservation performance can be achieved. Description of the Drawings

[0021] Figure 1 It is a three-dimensional structure diagram of the pool-type electromagnetic heat preservation furnace of the present invention;

[0022] Figure 2 It is a three-dimensional structure diagram of the pool-type electromagnetic heat preservation furnace of the present invention (when the furnace cover is opened);

[0023] Figure 3 It is a top view of the pool-type electromagnetic heat preservation furnace of the present invention;

[0024] Figure 4 is Figure 3 a sectional view taken along line A-A in

[0025] Figure 5 It is an exploded structure diagram of the heat preservation layer between the housing and the main body in the present invention;

[0026] Figure 6 It is a three-dimensional structure diagram of the furnace cover in the present invention;

[0027] Figure 7 It is a three-dimensional structure diagram of the furnace cover in the present invention (without the internal fiber cotton of the furnace cover);

[0028] Figure 8 It is a three-dimensional structure diagram of the furnace cover in the present invention (with part of the castable flange removed).

[0029] Reference Signs: 1. Housing; 2. Main Body; 21. Heat Preservation Cavity; 22. Feed Cavity; 221. Gravity Flap; 231. Heat Preservation Valve; 23. Discharge Cavity; 26. Fixed Flange; 3. Furnace Cover; 31. Power Supply Protective Cover; 32. Support Bottom Plate; 321. Furnace Cover Fiber Board; 322. Furnace Cover Nano Board; 323. Furnace Cover Fiber Board Lifting Hook; 33. Internal Fiber Cotton of Furnace Cover; 331. Seat Body of Internal Fiber Cotton of Furnace Cover; 332. Cover Body of Internal Fiber Cotton of Furnace Cover; 34. Castable Flange; 341. Flange Lifting Hook; 36. Furnace Cover Side Plate; 4. Electromagnetic Heating Element; 41. Internal Fiber Cotton in Crucible; 42. Crucible Fiber Paper; 51. Bottom Calcium Silicate Board; 52. Side Calcium Silicate Board; 53. Bottom Heat Preservation Brick; 54. Bottom Lightweight Material; 55. Side Fiber Cotton. Detailed Description of the Invention

[0030] Refer to Figures 1 to 8 to further describe the embodiments of the pool-type electromagnetic heat preservation furnace of the present invention.

[0031] In the description of the present invention, it should be noted that for orientation terms, such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and positional relationship are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

[0032] In addition, such terms as "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meanings of "several" and "a number of" are two or more, unless otherwise specifically defined.

[0033] A pool-type electromagnetic insulation furnace includes a housing 1 and a body 2. The body 2 is provided with a heat insulation cavity 21, a feeding cavity 22 and a discharging cavity 23 with interconnected bottoms. The upper end of the heat insulation cavity 21 is provided with an opening. Above the opening of the heat insulation cavity 21 is provided a furnace cover 3. The furnace cover 3 includes a supporting bottom plate 32 and furnace cover internal fiber cotton 33. Above the supporting bottom plate 32 is provided a casting material flange 34. The furnace cover internal fiber cotton 33 is provided with a receiving cavity. The casting material flange 34 is located in the receiving cavity. Both the casting material flange 34 and the supporting bottom plate 32 are provided with mounting openings. An electromagnetic heating element 4 is placed in the mounting openings. The top of the electromagnetic heating element 4 is provided with an outward flange. The casting material flange 34 is provided with an inward flange that cooperates with the outward flange. The casting material flange 34 is provided with a flange lifting hook 341.

[0034] As Figure 6 shown, above the furnace cover 3 in this embodiment is also provided a power protection cover 31. Inside the power protection cover 31 is provided a cooling fan. The electromagnetic heating element 4 in this embodiment is electromagnetic heating.

[0035] The furnace cover 3 further includes a furnace cover top plate and furnace cover side plates 36. The furnace cover top plate and the furnace cover side plates 36 form a box shape to cover the supporting bottom plate 32 and the furnace cover internal fiber board therein.

[0036] As Figure 2 and Figure 6 shown, the bottom end of the furnace cover side plates 36 partially supports the supporting bottom plate 32. At the edge of the furnace body corresponding to the opening of the heat insulation cavity 21 is provided a fixed flange 26. The furnace cover side plates 36 and the fixed flange 26 are fixedly connected by bolts.

[0037] By using the hoisting flange to place the lifting hook 341, the entire electromagnetic heating element 4 can be taken out or put into the heat preservation cavity 21 through the castable flange 34. When the electromagnetic heating element 4 is taken out, it is not necessary to open the entire furnace cover 3. Only the installation opening is open, and the communication area between the heat preservation cavity 21 and the outside is small.

[0038] Preferably, in this embodiment, the fiber cotton 33 inside the furnace cover includes a fiber cotton seat body 331 and a fiber cotton cover body 332 inside the furnace cover. The accommodating cavity is located on the fiber cotton seat body 331 inside the furnace cover, and the accommodating cavity penetrates to the top surface of the fiber cotton seat body 331 inside the furnace cover. The fiber cotton cover body 332 inside the furnace cover covers the accommodating cavity of the fiber cotton seat body 331 inside the furnace cover, and steps are provided between the fiber cotton cover body 332 inside the furnace cover and the fiber cotton seat body 331 inside the furnace cover.

[0039] As Figure 4 shown, when it is necessary to repair and replace the electromagnetic heating element 4, the power protection cover 31 is first removed, and then the fiber cotton cover body 332 inside the furnace cover is removed. At this time, the electromagnetic heating element 4 and the castable flange 34 are exposed. The flange lifting hook 341 and the castable flange 34 are lifted by using a hoisting tool to repair and replace the electromagnetic heating element 4. During the repair and replacement period, the fiber cotton cover body 332 inside the furnace cover is covered on the accommodating cavity again to seal the installation opening, realizing a further heat preservation effect for the electromagnetic heating element 4 and giving a longer time for the repair and replacement of the electromagnetic heating element 4. The setting of the steps can make the fiber cotton cover body 332 inside the furnace cover cover at a fixed position.

[0040] Preferably, in this embodiment, a part of the fiber cotton seat body 331 inside the furnace cover is padded between the support bottom plate 32 and the castable flange 34, and another part is wrapped outside the castable flange 34. As Figure 4 shown, a part of the fiber cotton seat body 331 inside the furnace cover is padded between the castable flange and the support bottom plate 32. When the electromagnetic heating element 4 is installed in the heat preservation cavity 21, the castable flange 34 presses on a part of the fiber cotton seat body 331 inside the furnace cover.

[0041] Preferably, in this embodiment, the support bottom plate 32 includes a furnace cover fiber board 321 at the bottom layer and a furnace cover nano board 322 at the top layer. A number of furnace cover fiber board lifting hooks 323 are provided on the furnace cover fiber board 321, and the top ends of the furnace cover fiber board lifting hooks 323 extend above the fiber cotton 33 inside the furnace cover. The furnace cover 3 can be hoisted integrally through the furnace cover 3 limit plate lifting hook.

[0042] Preferably, in this embodiment, a crucible wrapping fiber paper 42 is provided on the upper side wall of the electromagnetic heating element 4.

[0043] The fiber board and the fiber paper in this embodiment are high-temperature resistant fiber board and high-temperature resistant fiber paper, which are used for heat insulation.

[0044] Preferably, in this embodiment, an electromagnetic high-temperature wire and crucible internal fiber cotton 41 are provided inside the electromagnetic heating element 4. The crucible internal fiber cotton 41 is located at the upper opening of the electromagnetic heating element 4 and cooperates with the crucible fiber paper 42, which can reduce the heat dissipation effect above the electromagnetic heating element 4 and make the heat dissipate into the heat preservation cavity 21.

[0045] As Figure 5 As shown, preferably, the housing 1 of this embodiment includes a bottom plate and side plates. Between the bottom plate and the main body 2, a bottom calcium silicate board 51, a bottom heat preservation brick 53, and a bottom light material 54 are sequentially arranged from outside to inside; between the side plates and the main body 2, a side calcium silicate board 52 and side fiber cotton 55 are sequentially arranged from outside to inside, providing a good heat insulation and preservation layer for the main body 2 and good support performance at the bottom.

[0046] As Figure 4 As shown, a gravity flap 221 is arranged inside the feeding cavity 22. The gravity flap 221 is hinged to the main body 2. Preferably, the gravity flap 221 is arranged inside the feeding cavity 22 through a torsion spring or a compression spring. When feeding is required, the material is put into the top of the feeding cavity 22. When its gravity is greater than that of the gravity flap 221, the gravity flap 221 turns downward and the material smoothly enters the heat preservation cavity 21. When feeding is not required, the gravity flap 221 resets to isolate the feeding cavity 22 from the outside and reduce heat exchange. The surface of the gravity flap 221 can be covered with a heat preservation layer, such as heat preservation cotton.

[0047] Preferably, in this embodiment, a heat preservation valve 231 is arranged inside the discharging cavity 23. A microwave inductor is arranged above the heat preservation valve 231 corresponding to the discharging cavity 23. The microwave inductor is electrically connected to the heat preservation valve 231. When taking materials, a tool is inserted into the discharging cavity 23. At this time, the microwave inductor will sense that a tool has been inserted, and control the heat preservation valve 231 to open, making the discharging cavity 23 communicate with the outside. After the tool leaves the discharging cavity 23, that is, outside the detection range of the microwave inductor, the heat preservation valve 231 will be controlled to close, making the discharging cavity 23 closed to reduce heat exchange. The combination of the heat preservation valve 231 and the microwave inductor can also be used in the feeding cavity 22.

[0048] In this embodiment, the gravity flap 221 and the heat preservation valve 231 arranged inside the feeding cavity 22 and the discharging cavity 23 are both higher than the communication port where the feeding cavity 22, the discharging cavity 23, and the heat preservation cavity 21 communicate with each other.

[0049] In this embodiment, the heat preservation valve 231 includes a flap. One side of the flap is hinged inside the discharging cavity 23. The flap is connected to the motor through a reduction gear set. The motor controls the movement of the flap. The microwave inductor is electrically connected to the motor.

[0050] The heat preservation valve 231 can also be a movable plate. An active cavity is arranged on the side wall of the discharge cavity 23. The movable plate is connected to a telescopic mechanism, which can be a cylinder or a linear motor. The telescopic mechanism is used to control the movable plate to extend out of the active cavity and enter the discharge cavity 23 to block the discharge cavity 23, or to retract the movable plate into the active cavity. At this time, the discharge cavity 23 is opened to communicate with the outside.

[0051] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A pool-type electromagnetic insulation furnace, comprising a housing and a body, wherein the body is provided with a heat preservation cavity, a feeding cavity and a discharging cavity with interconnected bottoms, and an opening is arranged at the upper end of the heat preservation cavity, and is characterized in that: Above the opening of the heat preservation cavity, a furnace cover is provided. The furnace cover includes a supporting bottom plate and internal fiber cotton of the furnace cover. Above the supporting bottom plate, a casting material flange is provided. An accommodation cavity is formed in the internal fiber cotton of the furnace cover, and the casting material flange is located in the accommodation cavity. Installation openings are formed in both the casting material flange and the supporting bottom plate, and an electromagnetic heating element is placed in the installation opening. An outer flange is provided at the top of the electromagnetic heating element, and an inner flange matching with the outer flange is provided on the casting material flange. A flange lifting hook is provided on the casting material flange; The internal fiber cotton of the furnace cover includes a seat body of the internal fiber cotton of the furnace cover and a cover body of the internal fiber cotton of the furnace cover. The accommodation cavity is located on the seat body of the internal fiber cotton of the furnace cover, and the accommodation cavity penetrates through to the top surface of the seat body of the internal fiber cotton of the furnace cover. The cover body of the internal fiber cotton of the furnace cover covers the accommodation cavity of the seat body of the internal fiber cotton of the furnace cover, and steps are provided between the cover body of the internal fiber cotton of the furnace cover and the seat body of the internal fiber cotton of the furnace cover; Crucible fiber paper is provided on the upper side wall of the electromagnetic heating element; A part of the seat body of the internal fiber cotton of the furnace cover is padded between the supporting bottom plate and the casting material flange, and another part wraps around the outside of the casting material flange; The furnace cover further includes a top plate of the furnace cover and a side plate of the furnace cover. The top plate of the furnace cover and the side plate of the furnace cover form a box shape to cover the supporting bottom plate and the internal fiber cotton of the furnace cover; The supporting bottom plate includes a bottom furnace cover fiber board and a top furnace cover nano board. A number of furnace cover fiber board lifting hooks are provided on the furnace cover fiber board, and the top ends of the furnace cover fiber board lifting hooks extend above the internal fiber cotton of the furnace cover.

2. The pool-type electromagnetic heat preservation furnace according to claim 1, wherein: An electromagnetic high-temperature wire and internal crucible fiber cotton are provided inside the electromagnetic heating element, and the internal crucible fiber cotton is located at the upper opening of the electromagnetic heating element.

3. The pool-type electromagnetic insulation furnace according to claim 2, wherein: The housing includes a bottom plate and side plates. Between the bottom plate and the body, a bottom calcium silicate board, a bottom insulating brick, and a bottom lightweight material are sequentially provided from outside to inside; between the side plates and the body, a side calcium silicate board and side fiber cotton are sequentially provided from outside to inside.

4. The pool-type electromagnetic insulation furnace according to claim 3, wherein: A gravity flap is provided inside the feed cavity, and the gravity flap is hinged to the body.

5. The pool-type electromagnetic insulation furnace according to claim 3, characterized in that: A heat preservation valve is provided inside the discharge cavity, and a microwave sensor is provided above the heat preservation valve corresponding to the discharge cavity. The microwave sensor is electrically connected to the heat preservation valve.

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