Annealing furnace device

Abstract

The utility model provides an annealing furnace device which comprises a furnace body, and the furnace body extends in the first direction and comprises an annealing cavity and a combustion cavity which are arranged up and down; the combustion cavity is positioned below the annealing cavity and is communicated with the annealing cavity; one end of the annealing cavity away from the combustion cavity is inclined along the first direction; the furnace cover is mounted on the inclined surface of the annealing cavity in an attached manner and is used for sealing the top of the annealing cavity; and the heat preservation part is arranged in the annealing cavity and on the furnace cover and used for conducting heat preservation on the annealing cavity. The furnace bricks are respectively arranged on the annealing cavity and the furnace cover, so that the annealing cavity can be effectively insulated, the heat exchange with the outside is reduced, and the energy consumption is effectively reduced; meanwhile, the top of the furnace body is of a slope structure, so that the height difference is formed in the inner space of the annealing cavity, corresponding airflow can be formed in the annealing cavity during heating, the combustion effect can be effectively improved, impurities generated by combustion can be prevented from being adsorbed on the furnace bricks, and the situation that the internal temperature is not uniform due to impurity accumulation is avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of heat treatment, in particular to an annealing furnace device. BACKGROUND

[0002] Annealing is a common preliminary heat treatment process in production; after annealing, most machine parts and work and die blanks can eliminate the internal stress of casting, forging and welding and the composition inhomogeneity; the mechanical properties of steel can be improved and adjusted to prepare for the next process.

[0003] The traditional natural gas heating annealing furnace consumes a large amount of natural gas, natural gas is a non-renewable energy, and the increase of the consumption of natural gas in industrial production increases the cost of products, especially in areas where natural gas is scarce, which causes production delay, supply shortage and other problems; therefore, the above problems need to be solved. SUMMARY

[0004] In view of the above defects or deficiencies in the prior art, it is desirable to provide an annealing furnace device.

[0005] The application provides an annealing furnace device, which comprises

[0006] a furnace body extending along a first direction, comprising an annealing cavity and a combustion cavity arranged in an upper and lower manner, and having openings at both ends along the first direction;

[0007] the combustion cavity is located below the annealing cavity and communicates with the annealing cavity;

[0008] an end of the annealing cavity away from the combustion cavity is inclined along the first direction;

[0009] a furnace cover is attached to the inclined surface of the annealing cavity and used for sealing the top of the annealing cavity;

[0010] a heat preservation member is arranged in the annealing cavity and on the furnace cover and used for heat preservation of the annealing cavity.

[0011] Further,

[0012] the width of the annealing cavity is greater than that of the combustion cavity, and two abutting tables are formed between the annealing cavity and the combustion cavity.

[0013] Further,

[0014] the heat preservation member comprises furnace bricks arranged on the abutting tables respectively, each furnace brick forms a furnace body heat preservation layer, the material of the furnace bricks is alumina, and a material channel is formed between the two furnace body heat preservation layers.

[0015] Further,

[0016] The installation slot is arranged on one side of the furnace cover corresponding to the furnace brick.

[0017] The installation slot extends along the first direction and is located at the middle of the furnace cover.

[0018] The heat preservation member further comprises the furnace brick installed in the installation slot, and the furnace brick forms a heat preservation layer of the furnace cover.

[0019] Further,

[0020] The heat preservation member further comprises the furnace brick arranged at two ends of the combustion chamber, and the furnace brick is used for sealing the opening of the furnace body corresponding to the combustion chamber.

[0021] The combustion chamber is further provided with a burner between the two furnace bricks.

[0022] The bottom of the burner is respectively provided with a natural gas inlet and a compressed air inlet, and the top is provided with a U-shaped steel mesh.

[0023] The natural gas inlet and the compressed air inlet respectively penetrate the furnace body and are used for connecting with external gas sources.

[0024] Further,

[0025] The furnace body and the furnace cover are connected through a hinge.

[0026] The hinge comprises at least two hinges arranged on the same side of the furnace body and arranged along the first direction.

[0027] The side of the furnace cover away from the furnace body is provided with a U-shaped handle for operating the furnace cover.

[0028] Further,

[0029] One side of the furnace cover is provided with an extended cover plate for sealing the input end of the annealing chamber.

[0030] The height of the annealing chamber is greater than the extension length of the cover plate.

[0031] The application has the advantages and positive effects that:

[0032] The technical scheme can effectively preserve the annealing chamber, thereby reducing heat exchange with the outside and effectively reducing energy consumption. Meanwhile, the top of the furnace body adopts a slope structure, so that the internal space of the annealing chamber forms a height difference, thereby forming corresponding air flow inside when heating. Not only can the combustion effect be effectively improved, but also the generated flue gas can be discharged from a high place, thereby preventing impurities generated by combustion from being adsorbed on the furnace brick, so as to avoid the influence of impurity accumulation on the internal temperature uniformity. BRIEF DESCRIPTION OF DRAWINGS

[0033] Fig. 1 A structure schematic diagram of an annealing furnace device provided by an embodiment of the present application is shown in the figure.

[0034] Fig. 2 A structure schematic diagram of a furnace body of an annealing furnace device provided by an embodiment of the present application is shown in the figure.

[0035] The text annotations in the figure represent: 100-furnace body; 110-annealing cavity; 120-combustion cavity; 200-furnace cover; 210-cover plate; 300-furnace brick. DETAILED DESCRIPTION

[0036] In order to make the skilled in the art better understand the technical solutions of the present application, the present application is described in detail below in combination with the drawings, and the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present application.

[0037] Please refer to Figs. 1-2 The present embodiment provides an annealing furnace device, which comprises a furnace body 100, the furnace body 100 extends along a first direction, comprises an annealing cavity 110 and a combustion cavity 120 arranged in an up-down manner, and has openings at both ends along the first direction; the combustion cavity 120 is located below the annealing cavity 110 and communicates with the annealing cavity 110; an end of the annealing cavity 110 away from the combustion cavity 120 is inclined along the first direction; a furnace cover 200 is attached to the inclined surface of the annealing cavity 110 and is used for sealing the top of the annealing cavity 110; a heat preservation member is arranged in the annealing cavity 110 and on the furnace cover 200 and is used for heat preservation of the annealing cavity 110.

[0038] In the present embodiment, the furnace body 100 is in a stepped shape, the width of the upper annealing cavity 110 is greater than the width of the lower combustion cavity 120; the width of the furnace cover 200 matches the width of the top of the furnace body 100, and the furnace cover 200 is attached to the furnace body 100 to seal the top of the annealing cavity 110.

[0039] In the present embodiment, the top of the furnace body 100 is in an inclined surface structure, so that the two ends of the annealing cavity 110 form a height difference, which can effectively accelerate the circulation of hot gas flow, improve the combustion effect, and ensure the temperature stability in the annealing cavity.

[0040] In a preferred embodiment, the width of the annealing cavity 110 is greater than the width of the combustion cavity 120, and two abutting tables are formed between the annealing cavity 110 and the combustion cavity 120.

[0041] In a preferred embodiment, the heat preservation member comprises furnace bricks 300 arranged on the abutting tables respectively, each furnace brick 300 forms a furnace body heat preservation layer, and the material of the furnace bricks is alumina; a material passage is formed between the two furnace body heat preservation layers.

[0042] In the embodiment, the extending direction of the furnace brick 300 is the first direction, and the two ends of the furnace brick 300 are arranged at the openings of the furnace body, thereby sealing the openings of the furnace body.

[0043] In a preferred embodiment, the furnace cover 200 is provided with a mounting groove corresponding to the furnace brick 300 at the side close to the furnace body 100; the mounting groove extends along the first direction and is located at the middle of the furnace cover 200; the heat preservation member further comprises the furnace brick 300 mounted in the mounting groove, and the furnace brick forms a heat preservation layer of the furnace cover.

[0044] In the embodiment, the heat preservation layer of the furnace cover formed by the furnace brick 300 extends along the first direction and has a width greater than the width between the two heat preservation layers of the furnace body in the annealing cavity 110, so that the closed heat preservation structure is realized by lapping.

[0045] In a preferred embodiment, the heat preservation member further comprises the furnace brick 300 arranged at the two ends of the combustion cavity 120, and the furnace brick 300 is used for sealing the openings of the furnace body 100 corresponding to the combustion cavity 120; a burner is further arranged between the two furnace bricks 300 in the combustion cavity 120; the bottom of the burner is respectively provided with a natural gas inlet and a compressed air inlet, and the top of the burner is provided with a U-shaped steel mesh; the natural gas inlet and the compressed air inlet respectively penetrate the furnace body 100 and are used for connecting with external gas sources.

[0046] In the embodiment, the burner is fixedly mounted on the bottom of the combustion cavity 120, and the bottom of the burner is respectively provided with a natural gas inlet and a compressed air inlet; the bottom of the furnace body 100 is respectively provided with corresponding butt joints corresponding to the natural gas inlet and the compressed air inlet, so as to pass the connecting hoses.

[0047] In the embodiment, the burner is welded by using ss310 stainless steel, and the steel mesh is a 100-mesh stainless steel mesh, which is used for ensuring that the natural gas uniformly passes through.

[0048] In a preferred embodiment, the furnace body 100 and the furnace cover 200 are connected through a hinge; the hinge comprises at least two hinges arranged on the same side of the furnace body 100 and arranged along the first direction; and the side of the furnace cover 200 away from the furnace body 100 is provided with a U-shaped handle for operating the furnace cover 200.

[0049] In a preferred embodiment, one side of the furnace cover 200 is provided with an extended cover plate 210 for sealing the input end of the annealing cavity 110; and the height of the annealing cavity 110 is greater than the extension length of the cover plate 210.

[0050] In the embodiment, the furnace cover 200 is not provided with a cover plate corresponding to the output end of the annealing cavity 110, so as to ensure that the flue gas generated by combustion can be discharged and collected and treated.

[0051] In the embodiment, the height of the cover plate 210 is less than the height of the end surface of the annealing cavity 110, so as to ensure that the cover plate 210 does not seal the material passage.

[0052] The principles and implementation manners of the present application are described herein by using specific examples, and the above example descriptions are only used to help understand the method of the present application and its core idea. The above descriptions are only preferred embodiments of the present application, and it should be pointed out that, due to the limited nature of the language expression, there are objectively infinite specific structures, and for ordinary skilled persons in the technical field, some improvements, refinements or changes can be made without departing from the principles of the present application, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or the application of the inventive concept and technical solution to other occasions without improvement, shall be regarded as the protection scope of the present application.

Claims

1. An annealing furnace device, characterized in that: include: A furnace body (100), the furnace body (100) extending along a first direction, comprising an annealing chamber (110) and a combustion chamber (120) arranged vertically, and having openings at both ends along the first direction; The combustion chamber (120) is located below the annealing chamber (110) and is in communication with the annealing chamber (110); One end of the annealing chamber (110) away from the combustion chamber (120) is inclined along the first direction; a furnace cover (200), the furnace cover (200) being fitted on the inclined surface of the annealing chamber (110) and used to seal the top of the annealing chamber (110); A heat-insulating component is provided in the annealing chamber (110) and on the furnace cover (200), and is used to keep the annealing chamber (110) warm.

2. The annealing furnace device according to claim 1, characterized in that The width of the annealing chamber (110) is greater than the width of the combustion chamber (120), and two docking platforms are formed between the annealing chamber (110) and the combustion chamber (120).

3. The annealing furnace device according to claim 2, characterized in that The heat-insulating component comprises furnace bricks (300) respectively arranged on the docking platform, each furnace brick (300) forming a furnace body heat-insulating layer; the furnace bricks (300) are made of alumina; and a material channel is formed between two furnace body heat-insulating layers.

4. The annealing furnace device according to claim 3, characterized in that A mounting groove is provided on a side of the furnace cover (200) close to the furnace body (100) corresponding to the furnace brick (300); The mounting groove extends along the first direction and is located in the middle of the furnace cover (200); The heat-insulating component further comprises the furnace brick (300) installed in the installation groove, and the furnace brick (300) forms a furnace cover heat-insulating layer.

5. The annealing furnace device according to claim 3, characterized in that: The heat-insulating member further comprises furnace bricks (300) provided at both ends of the combustion chamber (120), the furnace bricks (300) being used to block the opening of the furnace body (100) corresponding to the combustion chamber (120); A burner is also provided in the combustion chamber (120) between the two furnace bricks (300); The bottom of the burner is provided with a natural gas inlet and a compressed air inlet, and the top is provided with a U-shaped steel mesh; The natural gas inlet and the compressed air inlet respectively pass through the furnace body (100) and are used to be connected to an external gas source.

6. The annealing furnace device according to claim 1, characterized in that The furnace body (100) and the furnace cover (200) are connected via hinges; The hinges include at least two hinges, which are respectively located on the same side of the furnace body (100) and arranged along the first direction; A U-shaped handle is provided on a side of the furnace cover (200) away from the furnace body (100) for operating the furnace cover (200).

7. The annealing furnace device according to claim 1, characterized in that An extended cover plate (210) is provided on one side of the furnace cover (200) for sealing the input end of the annealing chamber (110); The height of the annealing chamber (110) is greater than the extension length of the cover plate (210).

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