Energy-saving furnace cover

Abstract

The utility model discloses an energy-saving furnace cover which comprises an upper cover, a heat insulation layer and a lower cover. Wherein the middle part of the surface of the upper cover is processed to form an annular fin-shaped groove structure; a plurality of straight grooves or annular fin-shaped groove structures are formed in the periphery of the surface of the upper cover; the surface, facing the furnace body, of the lower cover is a mirror surface; and a heat insulation layer is filled between the upper cover and the lower cover. The light-weight LED lamp has a light-weight structure, can reduce heat dissipation, has good economic benefits and environmental benefits, and is worthy of popularization.

Description

TECHNICAL FIELD

[0001] The utility model relates to coke oven equipment technical field, more specifically, the utility model relates to a kind of energy-saving furnace cover. BACKGROUND

[0002] Coke oven is a kind of furnace for refining coke, during the process of loading coal, the furnace cover needs to be opened, the opening of the furnace cover is opened by automatic cover opening mechanism of top charging coke oven coal loading car, since the existing top charging coke oven furnace cover is usually made of cast iron, the surface temperature of the furnace cover is above 300 DEG C on average during coking cycle, and the ambient temperature of thermal radiation is higher than 50 DEG C, heat energy is wasted seriously, and the operator is easy to scald, the operating environment is poor.Moreover, the seal around the furnace cover is not tight, which causes the overflow of raw coal gas generated in the carbonization chamber, pollutes the environment, is flammable and explosive, and its main components can affect the health of the operator. SUMMARY

[0003] The utility model discloses a kind of energy-saving furnace cover, with lightweight structure, can reduce heat dissipation, with good economic benefit and environmental benefit, is worth promoting.

[0004] The utility model discloses the technical scheme that the technical problem is solved is as follows: an energy-saving furnace cover, comprising: upper cover, heat insulation layer and lower cover;

[0005] Among them, the annular fin-shaped groove structure is formed in the middle part of the upper cover surface;The outer periphery of the upper cover surface is processed to form a plurality of straight grooves or annular fin-shaped groove structures;The surface of the lower cover facing the furnace body is a mirror surface;The upper cover and the lower cover are filled with a heat insulation layer.

[0006] As a further scheme of the utility model, the lower cover is a downward convex curved surface structure.

[0007] As a further scheme of the utility model, the upper cover is a plane structure, the outer periphery of the upper cover upper surface is formed with a chamfer, and a plurality of straight grooves are formed on the upper cover surface and located at the chamfer of the upper cover.

[0008] As a further scheme of the utility model, the upper cover and the lower cover are welded and sealed.

[0009] As a further scheme of the utility model, the upper cover and the lower cover are connected by fasteners.

[0010] As a further scheme of the utility model, the upper cover and the lower cover are connected by fasteners and welding.

[0011] As a further scheme of the utility model, a plurality of rectangular grooves and / or circular grooves are arranged on the upper surface of the upper cover.

[0012] As a further scheme of the utility model is: the upper cover bottom extends to the downward cover direction and forms a pipe groove, the pipe groove is through the upper cover upper portion and is sealed through a cover plate, a vacuum extraction sealing assembly is installed in the pipe groove, and the vacuum extraction sealing assembly is communicated with the space formed between the upper cover and the lower cover.

[0013] The energy-saving furnace cover has the advantages that the furnace cover surface temperature can be reduced, the furnace cover heat dissipation is reduced by 50%, the furnace cover surface temperature is reduced by more than 150 DEG C in a coking period, and good economic and environmental benefits are achieved, and the energy-saving furnace cover is worth promoting. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic diagram of the upper cover and the lower cover of the energy-saving furnace cover of the utility model welded and sealed;

[0015] Figure 2 is a schematic diagram of the upper cover and the lower cover of the energy-saving furnace cover of the utility model connected through bolts;

[0016] Figure 3 is a top view of the energy-saving furnace cover of the utility model;

[0017] Figure 4 is a three-dimensional schematic diagram of the energy-saving furnace cover of the utility model;

[0018] Figure 5 is a schematic diagram of the coke oven and the furnace cover linear sealing of the utility model.

[0019] Wherein, 1-upper cover, 2-heat insulation layer, 3-lower cover, 4-finned groove structure, 5-bolt, 6-straight groove, 7-pipe groove, 8-cover plate, 9-vacuum extraction sealing assembly, 10-rectangular groove, 11-coke oven. DETAILED DESCRIPTION

[0020] The utility model will be described in detail and completely in combination with the drawings. The person skilled in the art can realize the utility model based on these descriptions. Before the utility model is described in combination with the drawings, it needs to be pointed out specially that the technical schemes and technical features provided in each part including the following description in the utility model can be combined mutually in the case of no conflict.

[0021] Furthermore, the embodiments of the present invention described below are generally only a part of the embodiments of the present invention, and not all of the embodiments. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the protection scope of the present invention.

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The specific implementation process is as follows:

[0023] like Figures 3-4 As shown, this utility model provides an energy-saving furnace cover, including: an upper cover 1, a heat insulation layer 2, and a lower cover 3;

[0024] The upper cover 1 has an annular fin-shaped groove structure 4 formed in the middle of its surface. This structure can not only increase the convective heat transfer with the ambient air and reduce the surface temperature of the furnace cover, but also reduce the weight of the furnace cover and save the cost of the furnace cover. The outer periphery of the upper cover 1 has several straight grooves 6 or annular fin-shaped groove structures 4 formed.

[0025] The lower cover 3 has a mirror-like surface facing the furnace body, which can reflect heat radiation and reduce heat loss. The lower cover 3 is made of high alloy steel, which has excellent corrosion resistance. The alloying elements in high alloy steel can form a dense oxide film, which can effectively resist the erosion of corrosive media and maintain stable performance in harsh environments. In addition, high alloy steel has high temperature stability. High alloy steel can maintain good mechanical properties and chemical stability at high temperatures, making it suitable for high-temperature coke oven environments. Other parts can be made of low-cost steel materials, such as carbon steel, to save costs.

[0026] A heat insulation layer 2 is filled between the upper cover 1 and the lower cover 3. The heat insulation layer 2 is a heat insulation material filled in the space between the upper cover 1 and the lower cover 3. The heat insulation material can be a heat insulation blanket or the like, which can prevent heat from being conducted to the surface of the upper cover 1.

[0027] This technical solution may also include the following technical details to better achieve the technical effect: The lower cover 3 is a downwardly protruding curved surface structure. The curved surface structure can be a spherical surface, an elliptical surface, or a butterfly-shaped head structure, but is not limited to the three structures listed here. Taking the lower cover as a spherical structure as an example, when the coke oven base is curved, the furnace cover and the coke oven base are spherically sealed, which can ensure the sealing effect. Its protruding surface contacts the coke oven base. When the lower cover 3 is used in the coke oven, the self-sealing effect after coal loading is good, there is no escape of raw coal gas, the labor intensity of employees is reduced, the escape of raw coal gas is reduced, the coal gas yield is increased, and the environmental pollution of the coke oven is reduced.

[0028] The contact surface between the coke oven 11 and the lower cover 3 can be adopted. Figure 5The straight sealing in the furnace cover can reduce the contact area of the furnace cover and the furnace, and reduce heat transfer.

[0029] The upper cover 1 is a plane structure, and the outer periphery of the upper surface of the upper cover 1 is formed with a chamfer; a plurality of straight grooves 6 are formed on the surface of the upper cover 1 and located at the chamfer of the upper cover 1. This structure can not only increase the convective heat exchange with the ambient air and reduce the surface temperature of the furnace cover, but also reduce the weight of the furnace cover and save the cost of the furnace cover.

[0030] The upper cover 1 and the lower cover 3 are welded and sealed, so that the problem of reducing the vacuum degree of the sealed space formed by the upper cover 1 and the lower cover 3 and increasing the convective heat transfer of the air in the furnace cover can be avoided. Figure 1

[0031] The upper cover 1 and the lower cover 3 are connected through the bolt 5, so that the disassembly and maintenance can be facilitated. Figure 2

[0032] The upper surface of the upper cover 1 is provided with a plurality of rectangular grooves 10 and / or circular grooves, so that the heat exchange area can be further increased, and the weight of the furnace cover can be reduced.

[0033] The bottom of the upper cover 1 extends to the direction of the lower cover 3 to form a pipe groove 7, the pipe groove 7 is through the upper part of the upper cover 1 and is sealed through the cover plate 8, the pipe groove 7 is provided with a vacuum sealing assembly 9, the vacuum sealing assembly 9 is communicated with the space formed between the upper cover 1 and the lower cover 3, the space formed between the upper cover 1 and the lower cover 3 is vacuumized through the vacuumizing device connected with the vacuum sealing assembly 9 before being sealed through the cover plate 8, so that the convective heat transfer of the air in the furnace cover can be greatly reduced, and the surface temperature of the furnace cover can be greatly reduced. In addition, after the vacuumizing through the vacuumizing device is completed, the cover plate 8 is welded and sealed, so that the problem of reducing the vacuum degree of the sealed space and increasing the convective heat transfer of the air in the furnace cover caused by the leakage of the vacuumizing device can be avoided.

[0034] Although the embodiments of the present application have been disclosed as above, they are not limited to the application and implementation described in the specification and embodiments, and can be applied to various fields suitable for the present application. For those skilled in the art, other modifications can be easily realized, and therefore the present application is not limited to specific details and the embodiments shown and described herein.​​

Claims

1. An energy saving furnace cover characterized by, Comprise: Upper cover, heat insulation layer and lower cover; Wherein, the upper cover surface middle part is processed to form annular fin-shaped groove structure; the outer periphery of the upper cover surface is processed to form several straight grooves or annular fin-shaped groove structure; the surface of the lower cover facing the furnace body is mirror surface; the upper cover and the lower cover are filled with heat insulation layer.

2. The energy efficient cover as claimed in claim 1, wherein, The lower cover is downward convex curved surface structure.

3. The energy-saving cover according to claim 1 or 2, wherein The upper cover is plane structure, the outer periphery of the upper cover upper surface is formed with chamfer, and the upper cover surface is processed to form several straight grooves at the chamfer of the upper cover.

4. The energy efficient cover of claim 1, wherein, The upper cover and the lower cover are welded and sealed.

5. The energy efficient cover as claimed in claim 1, wherein, The upper cover and the lower cover are connected through fastener.

6. The energy efficient cover as claimed in claim 1, wherein, The upper cover and the lower cover are connected through fastener and welding.

7. The energy efficient cover as claimed in claim 1, wherein, The upper cover upper surface is provided with several rectangular grooves and / or circular grooves.

8. The energy efficient cover as claimed in claim 2, wherein, The upper cover bottom extends to the direction of the lower cover to form pipe groove, the pipe groove is through with the upper part of the upper cover and is sealed through cover plate, vacuum sealing assembly is installed in the pipe groove, and the vacuum sealing assembly is communicated with the space formed between the upper cover and the lower cover.

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