Annealing furnace

Abstract

The annealing furnace comprises a cylindrical furnace body, at least three heat transfer partition plates extending in the radial direction are distributed on the inner circumference of the furnace body, one end of each heat transfer partition plate is connected with the furnace body, and the other end of each heat transfer partition plate is provided with a first splitter plate extending leftwards and a second splitter plate extending rightwards. A plurality of cooling fins arranged at intervals in the height direction of the furnace body are arranged between the second splitter plate and the heat transfer partition plates and between the first splitter plate and the heat transfer partition plates respectively, the cooling fins are far away from the inner wall of the furnace body, and a first heat treatment area arranged in the furnace body is formed between every two adjacent heat transfer partition plates. Electric heating pipes arranged on the heat transfer partition plate and the furnace body are arranged in the first heat treatment area, and the electric heating pipes arranged on the heat transfer partition plate are close to the inner wall of the furnace body. The annealing furnace has the characteristics of being balanced in heating and high in annealing quality, and is complete in overall function and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment equipment, and more specifically, to an annealing furnace. Background Art

[0002] The heat treatment cavity of the pit annealing furnace is usually cylindrical, and the inner wall is arranged with electric heating components that generate heat when electricity is turned on. The surface temperature of the end of the metal consumables undergoing the heat treatment process facing the electric heating component is much higher than the surface temperature of the end facing away from the electric heating component. A small number of metal consumables in special use occasions have high requirements for the temperature of the annealing process. If there is a surface temperature difference in the metal consumables, it will affect the annealing quality of the product and the overall effect will be poor. Based on this, the utility model proposes an annealing furnace. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned deficiencies in the prior art and provide an annealing furnace, which has the characteristics of balanced heating and high annealing quality.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved as follows: the annealing furnace involved in the utility model comprises a cylindrical furnace body, the inner circumference of the furnace body is arranged with at least three heat transfer baffles extending in the radial direction, one end of the heat transfer baffle is connected to the furnace body, and the other end has a first diverter plate extending to the left and a second diverter plate extending to the right, a plurality of heat sinks arranged at intervals along the height direction of the furnace body are respectively arranged between the second diverter plate and the heat transfer baffle, and between the first diverter plate and the heat transfer baffle, the heat sinks are away from the inner wall of the furnace body, and a first heat treatment zone arranged inside the furnace body is formed between two adjacent heat transfer baffles, and the first heat treatment zone is provided with electric heating tubes arranged on the heat transfer baffles and the furnace body, and the electric heating tubes arranged on the heat transfer baffles are close to the inner wall of the furnace body.

[0005] The utility model is further configured such that the interval angles between two adjacent heat transfer baffles are equal.

[0006] The utility model is further configured as follows: six heat transfer partitions extending in radial direction are arranged on the inner periphery of the furnace body.

[0007] The utility model is further configured as follows: the first heat treatment zone is arranged on the outer sides of the first diverter plate and the second diverter plate, and the inner sides of the first diverter plate and the second diverter plate are also provided with a second heat treatment zone arranged inside the furnace body.

[0008] The utility model is further configured as follows: a heat opening is provided between a first flow divider plate on any of the heat transfer baffles and a second flow divider plate on the heat transfer baffle adjacent thereto.

[0009] In summary, the utility model has the following beneficial effects: the annealing furnace involved in the utility model can realize the annealing zoning in the furnace through the built-in heat transfer partition extending the side wall, and at the same time, a large amount of heat sources close to the inner wall can be diverted to the central position, balancing the heat difference between the near end and the far end, so that the heat in the furnace is evenly distributed, the annealing quality of the product is improved, the overall function is complete, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 It is a partial structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0012] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, rather than limiting the patent requirements of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0013] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0014] Example 1

[0015] See also Figure 1 and Figure 2 As shown, an annealing furnace involved in this embodiment includes a cylindrical furnace body 1, and six heat transfer baffles 2 extending radially are arranged on the inner circumference of the furnace body 1, and the interval angles between two adjacent heat transfer baffles 2 are equal. One end of the heat transfer baffle 2 is connected to the furnace body 1, and the other end has a first diverter plate 3 extending to the left and a second diverter plate 4 extending to the right. A plurality of heat sinks 5 arranged at intervals along the height direction of the furnace body 1 are respectively arranged between the second diverter plate 4 and the heat transfer baffle 2, and between the first diverter plate 3 and the heat transfer baffle 2. The heat sink 5 is away from the inner wall of the furnace body 1, and a first heat treatment zone 6 arranged inside the furnace body 1 is formed between two adjacent heat transfer baffles 2. The first heat treatment zone 6 is provided with electric heating tubes 7 arranged on the heat transfer baffles 2 and the furnace body 1, and the electric heating tubes 7 arranged on the heat transfer baffles 2 are close to the inner wall of the furnace body 1.

[0016] In this embodiment, six circumferentially arranged heat transfer partitions 2 are used to divide the interior of the furnace body 1 into six first heat treatment zones 6 that can all be heated, and each first heat treatment zone 6 can perform annealing operations on a metal coil.

[0017] Due to the arrangement of the heat transfer baffle 2 connected to the inner wall of the furnace body 1 and the first diverter plate 3 and the second diverter plate 4 thereon, the heat source gathered on the inner wall of the furnace body 1 is transferred through the heat transfer baffle 2 and then directed to an end away from the inner wall of the furnace body 1, thereby achieving the effect of balancing the thermal difference inside the furnace body 1, making the heating temperature more balanced and improving the annealing quality of the product.

[0018] The first diverter plate 3 and the second diverter plate 4 are provided to be used for heat diversion.

[0019] The heat sink 5 is provided to increase the contact area with the gas and improve the heat transfer efficiency.

[0020] Example 2

[0021] See also Figure 1 and Figure 2 As shown, the annealing furnace involved in this embodiment is further configured on the basis of Embodiment 1, wherein the first heat treatment zone 6 is arranged on the outer side of the first diverter plate 3 and the second diverter plate 4, and the inner side of the first diverter plate 3 and the second diverter plate 4 is also provided with a second heat treatment zone 8 arranged inside the furnace body 1.

[0022] Furthermore, a heat opening 9 is provided between the first splitter plate 3 on any of the heat transfer baffles 2 and the second splitter plate 4 on the adjacent heat transfer baffle 2 .

[0023] In this embodiment, the second heat treatment zone 8 is provided to increase the number of workstations in the heat treatment zone.

[0024] Wherein, by setting the heat opening 9, adjacent heat treatment zones are kept connected to ensure the temperature balance between the heat treatment zones.

[0025] The annealing furnace involved in the utility model realizes annealing zoning in the furnace by means of a heat transfer partition with a built-in extended side wall, and at the same time, a large amount of heat sources close to the inner wall can be diverted to the central position, balancing the heat difference between the near end and the far end, so that the heat in the furnace is evenly distributed, the annealing quality of the product is improved, the overall function is perfect, and the practicability is strong.

[0026] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationship are based on the orientation or positional relationship actually shown, and are 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 operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in combination with the embodiments and according to specific circumstances.

[0027] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. An annealing furnace, comprising a cylindrical furnace body, characterized in that: At least three heat transfer baffles extending radially are arranged on the inner periphery of the furnace body, one end of the heat transfer baffle is connected to the furnace body, and the other end has a first diverter plate extending to the left and a second diverter plate extending to the right, and a plurality of heat sinks arranged at intervals along the height direction of the furnace body are respectively arranged between the second diverter plate and the heat transfer baffle and between the first diverter plate and the heat transfer baffle, and the heat sinks are away from the inner wall of the furnace body, and a first heat treatment zone arranged inside the furnace body is formed between two adjacent heat transfer baffles, and electric heating tubes arranged on the heat transfer baffle and the furnace body are arranged in the first heat treatment zone, and the electric heating tubes arranged on the heat transfer baffle are close to the inner wall of the furnace body.

2. The annealing furnace according to claim 1, characterized in that: The interval angles between two adjacent heat transfer baffles are equal.

3. The annealing furnace according to claim 2, characterized in that: The inner periphery of the furnace body is provided with six heat transfer partitions extending in radial direction.

4. The annealing furnace according to any one of claims 1 to 3, characterized in that: The first heat treatment zone is arranged on the outer sides of the first diverter plate and the second diverter plate, and the inner sides of the first diverter plate and the second diverter plate are also provided with a second heat treatment zone arranged inside the furnace body.

5. The annealing furnace according to claim 4, characterized in that: A heat opening is provided between the first flow divider plate on any of the heat transfer baffles and the second flow divider plate on the adjacent heat transfer baffle plate.

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