CN211373230U - Furnace bottom structure and furnace body - Google Patents
Furnace bottom structure and furnace body Download PDFInfo
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- CN211373230U CN211373230U CN201922098851.5U CN201922098851U CN211373230U CN 211373230 U CN211373230 U CN 211373230U CN 201922098851 U CN201922098851 U CN 201922098851U CN 211373230 U CN211373230 U CN 211373230U
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Abstract
The utility model discloses a furnace bottom structure and furnace body, including one deck or multilayer flame retardant coating, fix a plurality of support frame, electric heating element in one deck or multilayer flame retardant coating the superiors, this electric heating element sets up the part of support frame is detached at the flame retardant coating upper surface to and fix a plurality of furnace bottom apron on the support frame, this furnace bottom apron encloses into a heat dissipation cavity with the side surface of adjacent support frame and electric heating element's upper surface, the utility model discloses simple structure compares in prior art, can make the transmission that electric heating element's heat can be quick to furnace, and the heat that reduces the electric heating element surface is concentrated, makes electric heating element's surface load can reduce to a certain extent has increased electric heating element's life.
Description
Technical Field
The utility model relates to an electric stove field specifically is a furnace bottom structure and furnace body.
Background
In order to reduce the waste of energy sources in the prior art, the heat preservation and heat insulation performance of the furnace bottom is generally increased as much as possible, for example, the application numbers are as follows: CN201020173677.2 discloses "furnace bottom structure of kiln", the furnace bottom includes brick layer, the brick layer is built by bricks, the bricks on brick layer are at least two layers and at least two bricks staggered arrangement between adjacent layers. The utility model provides a pair of furnace bottom structure of kiln, it sets up through the fragment of brick staggered arrangement with adjacent layer to stagger adjacent layer seam mutually, improved the sealing performance of equipment, and improved the reliability of equipment, prolonged the maintenance cycle and the life of equipment.
But in order to improve the utilization efficiency of electric energy in the mechanical industry and the metallurgical industry, the bottom of the electric heating furnace is divided into a thicker furnace bottom cover plate which is used for bearing a workpiece on one hand and preserving heat of the furnace bottom on the other hand, but by adopting the mode, not only the redundant electric energy is required to be consumed for heating at every time, but also the heat of the furnace bottom is low in radiating efficiency and cannot be timely transmitted, so that the overall load of an electric heating element is increased, the electric heating element is easy to over-burn, and the service life of the electric heating element is shortened.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a furnace bottom structure, this furnace bottom structure can effectively improve the heat effluvium efficiency of stove bottom portion to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a furnace floor structure comprising:
one or more refractory layers;
a plurality of support frames fixed on the uppermost layer of the one or more fire-resistant layers;
an electric heating element provided on the upper surface of the refractory layer except for the support frame, and
and the furnace bottom cover plates are fixed on the support frames, and a heat dissipation cavity is defined by the furnace bottom cover plates, the side surfaces of the adjacent support frames and the upper surfaces of the electric heating elements.
As a further aspect of the present invention: the upper surfaces of the supporting frames are fixedly connected with cushion blocks for auxiliary supporting, the upper surfaces of the cushion blocks are flush, and the contact surfaces of the cushion blocks and the supporting frames are smaller than the upper surfaces of the supporting frames.
As a further aspect of the present invention: the thickness of the furnace bottom cover plate is set to be 3-5 mm.
As a further aspect of the present invention: the furnace bottom cover plate comprises a transverse cover plate and a vertical cover plate which are alternately arranged on the support frame, folded edges are formed on two sides of the transverse cover plate, a heat conduction cavity is formed between any adjacent transverse cover plate and the side edge of the vertical cover plate and above the surface of the vertical cover plate, and the heat conduction cavity is communicated with the space in the furnace.
As a further aspect of the present invention: the heat conduction cavity comprises a heat conduction gap and a heat transfer opening, the outer side surface of the vertical cover plate of the heat conduction gap, the outer side surface of the transverse cover plate and the folded edge of the transverse cover plate are enclosed, the heat transfer opening is located above the vertical cover plate, and heat energy generated by the electric heating element is transferred to the space in the furnace through the heat dissipation cavity, the heat conduction gap and the heat transfer opening in sequence.
As a further aspect of the present invention: the transverse cover plate and the vertical cover plate are both U-shaped.
A furnace body comprises the furnace bottom structure.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses novel structure can make electric heating element's heat can be quick transmit to furnace in, and the heat that reduces the electric heating element surface is concentrated, makes electric heating element's surface load reduce to a certain extent has increased electric heating element's life.
Drawings
FIG. 1 is a schematic elevational sectional view of a furnace floor construction;
FIG. 2 is a side sectional structural view of a furnace floor structure;
FIG. 3 is a schematic view of FIG. 2 at A;
FIG. 4 is a top view of a furnace floor structure;
in the figure: 1-fire-resistant layer, 2-support frame, 3-cushion block, 4-heat conduction gap, 5-heat dissipation cavity, 6-furnace bottom cover plate, 61-transverse cover plate, 610-folded edge, 62-vertical cover plate, 7-electric heating element and 8-heat transfer port.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the utility model provides a technical scheme, a furnace bottom structure and furnace body, include:
the furnace comprises a refractory layer 1 playing a role in supporting and preserving heat in the furnace bottom, a support frame 2 used for supporting a workpiece to be processed, an electric heating element 7 used for providing a heat source for the furnace bottom, and a furnace bottom cover plate 6 used for insulating heat with the external environment and playing a role in preserving heat of the furnace bottom.
The fire-resistant layer also called as the fire-resistant heat-insulating layer of the furnace bottom can be arranged into one layer or a plurality of layers, the more the layers are, the higher the heat-insulating property is, and the layers of the fire-resistant layer can be selected and manufactured according to the actual application requirements in the manufacturing and using processes of the furnace bottom structure.
The support frame 2 is arranged at the uppermost end of the fire-resistant layer 1, the support frame mainly plays a role in bearing the weight of a workpiece, an upper sizing block and a furnace bottom cover plate, can adopt a refractory castable precast block which is a special-shaped precast block formed by high-temperature roasting after high-strength castable is poured and formed, the shape can be customized according to different furnace bottom structural specifications, and the support frame has the characteristics of strong bearing capacity and high temperature resistance, in the prior art, the workpiece is supported by the furnace bottom cover plate 6, the furnace bottom cover plate needs to meet certain bearing strength, so the thickness of the furnace bottom cover plate is correspondingly increased, the heat in the furnace bottom is diffused out by the furnace bottom cover plate with low efficiency, the heat is concentrated around an electric heating element, the surface load of the electric heating element is increased, the service life of the electric furnace is shortened, compared with the prior art, the support frame replaces the furnace, the furnace bottom cover plate 6 is not enabled to bear the weight of a workpiece, so that the thickness of the furnace bottom cover plate can be correspondingly reduced, the radiating efficiency of the furnace bottom heat through the furnace bottom cover plate is accelerated, the surface load of an electric heating element is reduced, the service life of the corresponding electric furnace is prolonged to a certain extent, and meanwhile, the thickness of the furnace bottom cover plate is reduced, and the heat energy absorbed by the furnace bottom cover plate when the electric furnace is used at every time is saved.
The electric heating elements 7 are arranged on the upper surface of the fire-resistant layer 1 and play a role of heating the whole body of the furnace bottom and provide heat for a to-be-heated piece at the upper end of the furnace bottom, the plurality of furnace bottom cover plates 6 are all fixed on the supporting frame 2, as shown in figure 2-3, under the supporting role of the supporting frame on the furnace bottom cover plates 6, a heat dissipation cavity 5 is formed between the furnace bottom cover plates 6 and the electric heating elements 7 and can disperse the heat generated by the electric heating elements and reduce the concentration of the heat, thereby reducing the load of the electric heating elements, meanwhile, through the alternate arrangement of the U-shaped transverse cover plates and the vertical cover plates on the supporting frame, a heat conduction cavity is formed between the transverse cover plates and the side edges of the vertical cover plates and above the surface of the vertical cover plates, the heat conduction cavity communicates the heat dissipation cavity 5 with the space in the furnace, meanwhile, the heat conduction cavity comprises a heat conduction gap 4 and a heat, the heat transfer port 8 is positioned above the vertical cover plate, heat energy generated by the electric heating element 7 is transferred to the space in the furnace through the heat dissipation cavity 5, the heat conduction gap 4 and the heat transfer port 8 in sequence, so that the heat transfer of the electric heating element is further accelerated, the load of the electric heating element is reduced, and meanwhile, the heat dissipated by the mode is uniformly distributed, and the uniformity of the temperature in the furnace is improved.
The both sides of horizontal apron 61 all are formed with hem 610, and both sides hem 610 plays the guide effect to the direction of heat effluvium on the one hand, and on the other hand can shelter from external oxide skin, plays certain guard action to the electric heating element of below.
The equal fixedly connected with in upper surface of support frame 2 is used for the cushion 3 of auxiliary stay processing work piece, and a plurality of cushion upper surface homogeneous phase flushes, and the contact surface of cushion and support frame is less than the upper surface of support frame, and the thickness of stove bottom apron 6 sets up to 3mm, compares the stove bottom plate thickness that is used for the bearing among the prior art, the utility model discloses stove bottom plate thickness among the prior art can correspondingly be reduced to reduce stove bottom apron and produce thermal absorption to electric heating element, accelerate the speed that electric heating element produced heat and effuse and transmit.
The transverse cover plate and the vertical cover plate are U-shaped, and the transverse cover plate and the vertical cover plate can be matched in shape, a bending cavity is formed between the transverse cover plate and the vertical cover plate, so that the heat radiation direction can be controlled, heat can be radiated more uniformly, and the uniformity of the furnace temperature is improved.
The utility model discloses novel structure, the operation is stable, the utility model discloses when using, electric heating element produces the heat, and this heat transmits through medium (contact, air etc.), please refer to and draw together fig. 2-3, under the mutual alternative arrangement effect between two horizontal apron and vertical apron, electric heating element's heat is through heat dissipation cavity 5, heat conduction clearance 4 and heat transfer mouth 8 effluvium to furnace, compare in prior art, the utility model discloses can make electric heating element's heat can be quick transmission to furnace in, reduce the heat on electric heating element surface and concentrate, make electric heating element's surface load reduce to electric heating element's life has been increased to a certain extent.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A hearth structure, comprising:
one or more refractory layers (1);
a plurality of support frames (2) fixed on the uppermost layer of the one or more flame retardant coatings (1);
an electric heating element (7) provided on the upper surface of the refractory layer (1) except for the support frame (2), and
a plurality of furnace bottom cover plates (6) fixed on the support frames (2), wherein the furnace bottom cover plates, the side surfaces of the adjacent support frames and the upper surfaces of the electric heating elements form a heat dissipation cavity (5).
2. The hearth structure according to claim 1, wherein the upper surfaces of the plurality of supporting frames (2) are fixedly connected with cushion blocks (3) for auxiliary supporting, the upper surfaces of the plurality of cushion blocks are flush, and the contact surfaces of the cushion blocks and the supporting frames are smaller than the upper surfaces of the supporting frames.
3. The hearth structure according to claim 1, characterized in that said hearth cover plate (6) is set to a thickness of 3-5 mm.
4. The hearth structure according to claim 1, wherein said hearth cover plates (6) comprise horizontal cover plates (61) and vertical cover plates (62) alternately mounted on said supporting frame (2), said horizontal cover plates (61) being formed with folded edges (610) on both sides thereof, and a heat transfer chamber is formed between any adjacent ones of said horizontal and vertical cover plates and above the surface of said vertical cover plates, said heat transfer chamber communicating said heat dissipation chamber (5) with the space in the furnace.
5. The furnace bottom structure of claim 4, characterized in that the heat conducting cavity comprises a heat conducting gap (4) and a heat transferring opening (8), the outer side surface of the vertical cover plate of the heat conducting gap (4) is enclosed by the outer side surface of the transverse cover plate and the folded edge of the transverse cover plate, the heat transferring opening (8) is positioned above the vertical cover plate, and the heat energy generated by the electric heating element (7) is transferred to the furnace space through the heat dissipating cavity (5), the heat conducting gap (4) and the heat transferring opening (8) in sequence.
6. The hearth structure of claim 4, wherein said horizontal and vertical cover plates are U-shaped.
7. A furnace body is characterized in that: comprising a furnace bottom structure according to any one of claims 1-6.
8. The furnace body of claim 7, wherein: the furnace body is an electric furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922098851.5U CN211373230U (en) | 2019-11-29 | 2019-11-29 | Furnace bottom structure and furnace body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922098851.5U CN211373230U (en) | 2019-11-29 | 2019-11-29 | Furnace bottom structure and furnace body |
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| Publication Number | Publication Date |
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| CN211373230U true CN211373230U (en) | 2020-08-28 |
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| CN201922098851.5U Active CN211373230U (en) | 2019-11-29 | 2019-11-29 | Furnace bottom structure and furnace body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110895105A (en) * | 2019-11-29 | 2020-03-20 | 中机第一设计研究院有限公司 | Furnace bottom structure and furnace body |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110895105A (en) * | 2019-11-29 | 2020-03-20 | 中机第一设计研究院有限公司 | Furnace bottom structure and furnace body |
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