Novel heating device for enhancing heat transfer

Abstract

The utility model relates to the technical field of metallurgical engineering, and discloses a novel heating device for enhancing heat transfer, which comprises a furnace body, a furnace cover mounted on the furnace body, and a plurality of electrodes mounted on the furnace cover in a penetrating manner, and is characterized in that a bearing frame is arranged below the furnace cover, the whole bearing frame is ring-shaped, and porous ceramics are filled in the bearing frame; the bearing frame is rotationally connected to the furnace cover through a connecting mechanism, the bearing frame is in transmission connection with a driving module, the driving module is used for driving the bearing frame to rotate, a plurality of combustion nozzles are installed on the inner wall of the furnace body below the bearing frame, and the tail ends of the combustion nozzles face the bottom surface of the bearing frame. The rotatable bearing frame is arranged above the combustion nozzle, the porous ceramics are filled in the bearing frame, and flames sprayed out of the combustion nozzle can burn the porous ceramics filled in the bearing frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to metallurgical engineering technical field more specifically, the utility model relates to a novel heating device of enhanced heat transfer. BACKGROUND

[0002] In metallurgical engineering, need to utilize heating device such as electric arc furnace to heat metal material, to make metal material melt rapidly, electric arc furnace not only utilizes high-temperature arc generated by electrode to heat smelting metal, to improve heating efficiency, usually, multiple combustion nozzles are arranged in furnace body, and the metal material at the bottom of the furnace body is assisted by the flame sprayed by the combustion nozzles, but due to the limited number of combustion nozzles and the coverage of the sprayed flame, only the material under the nozzle can be rapidly heated, so that the heat transfer effect between the flame sprayed by the combustion nozzle and the metal material is limited. SUMMARY

[0003] In order to overcome the defects of the prior art, the utility model provides a novel heating device of enhanced heat transfer to solve the problem of the limited number of combustion nozzles and the coverage of the sprayed flame in the background art, which can only rapidly heat the material under the nozzle, so that the heat transfer effect between the flame sprayed by the combustion nozzle and the metal material is limited.

[0004] To achieve the above object, the utility model provides the following technical scheme: a novel heating device of enhanced heat transfer, comprising a furnace body, a furnace cover is installed on the furnace body, a plurality of electrodes are installed through the furnace cover, characterized in that a bearing frame is arranged below the furnace cover, the bearing frame is in the form of a whole ring, a plurality of porous ceramics are filled in the bearing frame, the bearing frame is rotatably connected to the furnace cover by a connecting mechanism, a driving module is drivingly connected to the bearing frame, the driving module is used to drive the bearing frame to rotate, a plurality of combustion nozzles are installed on the inner wall of the furnace body below the bearing frame, and the distal end of the combustion nozzle is arranged towards the bottom surface of the bearing frame.

[0005] As a preferred technical scheme of the utility model, the bearing frame comprises an inner ring body, an outer ring body, a partition plate, an upper cover and a honeycomb grid, the outer ring body is sleeved on the inner ring body, the outer ring body and the inner ring body are coaxially arranged, the upper cover is in the form of a ring, the upper cover is coaxially arranged with the outer ring body and the inner ring body, a plurality of partition plates are arranged between the outer ring body and the inner ring body along the circumference, the partition plates are fixedly connected with the outer ring body and the inner ring body at both ends, the honeycomb grid is coaxially installed between the bottom of the outer ring body and the inner ring body, the honeycomb grid is in the form of a ring, and each two partition plates together with the upper cover and the honeycomb grid form a filling bin, and the porous ceramics are filled in the filling bin.

[0006] As a preferred technical scheme of the utility model, the inner ring body, the outer ring body, the partition plate, the upper cover and the honeycomb grating are made of high-temperature-resistant metal.

[0007] As a preferred technical scheme of the utility model, the inner ring body, the outer ring body, the upper cover and the honeycomb grating are made of high-temperature-resistant metal.

[0008] As a preferred technical scheme of the utility model, the inner ring body, the outer ring body, the upper cover and the honeycomb grating are made of high-temperature-resistant metal.

[0009] As a preferred technical scheme of the utility model, the inner ring body, the outer ring body, the upper cover and the honeycomb grating are made of high-temperature-resistant metal.

[0010] Compared with the prior art, the utility model has the advantages of the following:

[0011] The utility model discloses a bearing frame is arranged on the combustion nozzle top, and the bearing frame is filled with porous ceramic, and the flame of the combustion nozzle can burn the porous ceramic filled in the bearing frame, and the porous body is high in temperature after absorbing the flame radiation energy, also emits more radiation energy to the furnace body bottom, and reflects the radiation energy of the flame, and the bearing frame can rotate under the drive of the drive module, so that the flame of the combustion nozzle can uniformly burn the porous ceramic in the bearing frame, and then the annularly distributed porous ceramic can evenly transmit the absorbed heat to the workpiece at the furnace body bottom in the form of radiation energy, greatly enhances the heat transfer capacity of the flame of the combustion nozzle to the material, and further improves the heating efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structure schematic diagram of the utility model kind of novel heating device of enhancing heat transfer Figure 1 ;

[0013] Figure 2 It is the structure schematic diagram of the utility model kind of novel heating device of enhancing heat transfer Figure 1 ;

[0014] Figure 3 It is the structure schematic diagram of the utility model kind of novel heating device of enhancing heat transfer Figure 2 ;

[0015] Figure 4 Figure 1 is a schematic diagram of the bearing frame and driving module structure of the novel heating device for enhancing heat transfer of the utility model Figure 2 ;

[0016] Figure 5 Figure 2 is a schematic diagram of the bearing frame structure of the novel heating device for enhancing heat transfer of the utility model.

[0017] In the figure: 1, furnace body; 2, furnace cover; 3, electrode; 4, bearing frame; 41, inner ring body; 42, outer ring body; 43, partition; 44, upper cover; 45, honeycomb grid; 5, porous ceramic; 6, connecting mechanism; 61, annular track; 62, roller; 63, connecting shaft; 64, fixed plate; 65, limiting clamping groove; 7, driving module; 71, friction ring; 72, friction wheel; 73, transmission shaft; 74, motor; 8, combustion nozzle. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] As Figures 1 to 5 shown, the utility model provides a novel heating device for enhancing heat transfer, including furnace body 1, furnace body 1 is installed with furnace cover 2, furnace cover 2 is installed with a plurality of electrodes 3, its characterized in that, furnace cover 2 below is provided with bearing frame 4, bearing frame 4 is circular in whole, bearing frame 4 is filled with porous ceramic 5, bearing frame 4 is rotatably connected on furnace cover 2 through connecting mechanism 6, bearing frame 4 is drivingly connected with driving module 7, driving module 7 is used to drive bearing frame 4 autorotation, furnace body 1 inner wall below bearing frame 4 is installed with a plurality of combustion nozzles 8, and the end of combustion nozzle 8 is towards bearing frame 4 bottom surface and is provided.

[0020] The bearing frame 4 comprises an inner ring body 41, an outer ring body 42, a partition plate 43, an upper cover 44 and a honeycomb grid 45. The outer ring body 42 is sleeved on the inner ring body 41, and the outer ring body 42 is coaxially arranged with the inner ring body 41. The upper cover 44 is annular, and the upper cover 44 is coaxially arranged with the outer ring body 42 and the inner ring body 41. A plurality of partition plates 43 are arranged between the outer ring body 42 and the inner ring body 41 in the circumferential direction. The two ends of each partition plate 43 are fixedly connected with the outer ring body 42 and the inner ring body 41, respectively. The honeycomb grid 45 is coaxially arranged between the bottom of the outer ring body 42 and the inner ring body 41. The honeycomb grid 45 is annular. Each two partition plates 43 together with the upper cover 44 and the honeycomb grid 45 form a filling bin. The porous ceramic 5 is filled in the filling bin. The honeycomb holes on the honeycomb grid 45 allow the flame of the combustion nozzle 8 to pass through the honeycomb grid 45, so that heat is directly transmitted to the porous ceramic 5 in the filling bin. Because the inner ring body 41, the outer ring body 42 and the upper cover 44 hinder the surrounding of the filling bin, the radiation energy emitted by the porous ceramic 5 can only be transmitted to the material below through the honeycomb grid 45. The inner ring body 41, the outer ring body 42, the partition plate 43, the upper cover 44 and the honeycomb grid 45 are all made of high-temperature-resistant metal. The outer surfaces of the inner ring body 41, the outer ring body 42 and the upper cover 44 are sprayed with heat insulation paint.

[0021] The connecting mechanism 6 comprises a ring track 61, a plurality of rollers 62, a plurality of connecting shafts 63, a plurality of fixed plates 64 and a limiting clamping groove 65. The ring track 61 is coaxially fixedly connected to the outer side of the bearing frame 4. The ring track 61 is internally slidably arranged with the plurality of rollers 62. Each roller 62 is coaxially fixed with a connecting shaft 63. Each connecting shaft 63 corresponds to a fixed plate 64. The fixed plate 64 is provided with the limiting clamping groove 65. The outer end of the connecting shaft 63 is clamped into the limiting clamping groove 65. The limiting clamping groove 65 is in the shape of an inverted U. The limiting clamping groove 65 comprises a first vertical slot, a second vertical slot and a horizontal slot. The first vertical slot and the second vertical slot are arranged on the fixed plate 64. The lower end of the second vertical slot penetrates through the fixed plate 64. The upper end of the first vertical slot is communicated with the upper end of the second vertical slot through the horizontal slot. During installation, the lower part of the connecting shaft 63 is inserted upward through the opening at the bottom of the second vertical slot, and then the connecting shaft 63 is moved to the first vertical slot along the horizontal slot, so that the connecting shaft 63 is limited. When the bearing frame 4 rotates, the rollers 62 roll in the ring track 61, so that the normal rotation of the bearing frame 4 can be maintained.

[0022] The driving module 7 comprises a friction ring 71, a friction wheel 72, a transmission shaft 73 and a motor 74, the friction ring 71 is coaxially fixed on the bearing frame 4, the friction ring 71 is provided with the friction wheel 72 in contact with the friction ring 71, the transmission shaft 73 is coaxially fixed on the friction wheel 72, the transmission shaft 73 penetrates the furnace cover 2, and the motor 74 is in transmission connection with the transmission shaft 73 outside the furnace cover 2. The motor 74 is fixed on the furnace cover 2, the motor 74 drives the transmission shaft 73 to rotate, the transmission shaft 73 drives the friction wheel 72 to rotate, the friction wheel 72 drives the friction ring 71 to rotate through friction in the process of rotating, the friction ring 71 drives the whole bearing frame 4 to rotate, so that the driving function of the bearing frame 4 is realized, the motor 74 is a high-temperature-resistant motor 74, and a plurality of sealing rings are sleeved on the surface of the transmission shaft 73.

[0023] In use, when the materials in the furnace body 1 are heated, the flame sprayed by the combustion nozzle 8 can burn the porous ceramic 5 filled in the bearing frame 4, the porous body has high temperature after absorbing the flame radiation energy, and also emits more radiation energy to the bottom of the furnace body 1 and reflects the radiation energy of the flame, and the bearing frame 4 can rotate under the driving of the driving module 7, so that the flame of the combustion nozzle 8 can uniformly burn the porous ceramic 5 in the bearing frame 4, and then the annularly distributed porous ceramic 5 can uniformly transmit the absorbed heat to the workpiece at the bottom of the furnace body 1 in the form of radiation energy, greatly enhancing the heat transfer capacity of the flame sprayed by the combustion nozzle 8 to the materials, and further improving the heating efficiency.

[0024] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article, or equipment.

[0025] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A novel heating device for enhanced heat transfer comprising a furnace body (1) characterised in that: The furnace body (1) is provided with a furnace cover (2), a plurality of electrodes (3) are installed through the furnace cover (2), characterized in that a bearing frame (4) is arranged below the furnace cover (2), the bearing frame (4) is in the shape of a whole ring, a plurality of porous ceramics (5) are filled in the bearing frame (4), the bearing frame (4) is rotatably connected to the furnace cover (2) through a connecting mechanism (6), the bearing frame (4) is drivingly connected with a driving module (7), the driving module (7) is used for driving the bearing frame (4) to rotate, a plurality of combustion nozzles (8) are installed on the inner wall of the furnace body (1) below the bearing frame (4), and the ends of the combustion nozzles (8) are arranged towards the bottom surface of the bearing frame (4).

2. A novel heating device for enhanced heat transfer as claimed in claim 1, wherein: The bearing frame (4) comprises an inner ring body (41), an outer ring body (42), a partition plate (43), an upper cover (44) and a honeycomb grid (45), the outer ring body (42) is sleeved on the outer surface of the inner ring body (41), the outer ring body (42) is coaxially arranged with the inner ring body (41), the upper cover (44) is in the shape of a ring, the upper cover (44) is coaxially arranged with the outer ring body (42) and the inner ring body (41), a plurality of partition plates (43) are arranged between the outer ring body (42) and the inner ring body (41) in the circumferential direction, the two ends of each partition plate (43) are fixedly connected with the outer ring body (42) and the inner ring body (41), the honeycomb grid (45) is coaxially arranged between the bottom of the outer ring body (42) and the inner ring body (41), the honeycomb grid (45) is in the shape of a ring, and each two partition plates (43) together with the upper cover (44) and the honeycomb grid (45) form a filling bin.

3. A novel heating device for enhanced heat transfer as claimed in claim 2, wherein: The inner ring body (41), the outer ring body (42), the partition plate (43), the upper cover (44) and the honeycomb grid (45) are made of high-temperature-resistant metal.

4. A novel heating device for enhanced heat transfer as claimed in claim 2, wherein: The outer surfaces of the inner ring body (41), the outer ring body (42) and the upper cover (44) are sprayed with heat insulation paint.

5. A novel heating device for enhanced heat transfer as claimed in claim 1, wherein: The connecting mechanism (6) comprises a ring track (61), a plurality of rollers (62), a plurality of connecting shafts (63), a plurality of fixed plates (64) and limiting clamping grooves (65), the ring track (61) is coaxially fixedly connected to the outer side surface of the bearing frame (4), the plurality of rollers (62) are slidably arranged in the ring track (61), each roller (62) is coaxially fixed with a connecting shaft (63), each connecting shaft (63) corresponds to a fixed plate (64), the limiting clamping grooves (65) are formed in the fixed plate (64), and the outer end of the connecting shaft (63) is clamped into the limiting clamping groove (65).

6. A novel heating device for enhanced heat transfer as claimed in claim 1, wherein: The driving module (7) comprises a friction ring (71), a friction wheel (72), a transmission shaft (73) and a motor (74), the friction ring (71) is coaxially fixed to the bearing frame (4), the friction ring (71) is provided with the friction wheel (72) in contact with the friction ring (71), the transmission shaft (73) is coaxially fixed to the friction wheel (72), the transmission shaft (73) penetrates through the furnace cover (2), and the motor (74) is drivingly connected to the transmission shaft (73) outside the furnace cover (2).

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