Low-oxidation upper and lower double-face heating heat accumulating type through furnace

Abstract

The utility model belongs to the field of heat accumulating type through furnaces, and particularly relates to a low-oxidation upper and lower double-face heating heat accumulating type through furnace which comprises a furnace top, a furnace wall, a furnace frame, a heating device, refractory bricks, heat accumulating type burners and a furnace door. The furnace wall is arranged around the edge of the refractory top and located on the inner side of the furnace frame, castable is arranged on the tops of the refractory bricks, the heating device is arranged on the castable, the furnace top is arranged above the furnace wall, and the heat storage type burner is installed on the furnace wall, penetrates through the furnace wall and is communicated with the interior. A discharge hole is formed in the side part of the furnace body, and the furnace is positioned at the discharge hole and is connected to the furnace frame in a sliding manner; the device is less in heat dissipation and low in energy consumption, a heated workpiece is pushed into the radiant tube to be indirectly heated in the radiant tube, generation of oxide skin of the workpiece is effectively eradicated, automatic discharging of the small workpiece is facilitated, the working efficiency is improved, and materials and labor cost are saved.

Description

Technical Field

[0001] The utility model relates to the field of heat storage type through furnaces, in particular to a low-oxidation upper and lower double-sided heating heat storage type through furnace. Background Art

[0002] Traditional industrial heating furnaces often present numerous challenges. For example, their heating methods may be limited, preventing simultaneous heating from both top and bottom, resulting in low heating efficiency and uneven heating of the workpiece. Regarding energy utilization, traditional furnaces may lack effective heat storage mechanisms, leading to high energy consumption and low thermal efficiency. Furthermore, traditional furnaces may not effectively meet the requirements for minimizing oxidation, resulting in workpiece oxidation during the heating process and impacting product quality. Regarding the furnace structure, the design of the furnace roof and walls may be inadequate, resulting in poor insulation and susceptible to heat loss. Over long-term use, thermal expansion and contraction may damage the furnace structure, impacting its service life and safety. Furthermore, the design of the discharge port and door of traditional heating furnaces may be inconvenient and inflexible, impacting operational efficiency and smooth production processes. With the continuous advancement of industrial technology and increasing demands for product quality and energy efficiency, there is an urgent need for new heating furnaces to address these issues.

[0003] Because, in order to solve the above-mentioned problems, a low-oxidation upper and lower double-sided heating heat storage through furnace is proposed. Utility Model Content

[0004] The utility model aims to solve the above problems and specifically designs a low-oxidation upper and lower double-sided heating heat storage through-type furnace. The device has low heat dissipation and low energy consumption. The heated workpiece is pushed into the radiation tube for indirect heating in the radiation tube, which effectively prevents the formation of workpiece oxide scale, facilitates the automatic discharge of small workpieces, improves work efficiency, and saves material and labor costs.

[0005] To achieve the above-mentioned purpose, the utility model provides a low-oxidation upper and lower double-sided heating regenerative through-type furnace, comprising: a furnace top, a furnace wall, a furnace frame, a heating device, refractory bricks, a regenerative burner and a furnace door, the refractory bricks being arranged at the bottom of the inner side of the furnace frame, the furnace wall being arranged around the edge of the top of the refractory bricks and being located on the inner side of the furnace frame, a castable being arranged on the top of the refractory bricks, the heating device being arranged on the castable, the furnace top being arranged above the furnace wall, the regenerative burner being mounted on the furnace wall and passing through the furnace wall to communicate with the interior, a discharge port being opened on the side of the furnace body, and the furnace door being slidably connected to the furnace frame.

[0006] Through the above method, the workpiece enters the inside of the radiation tube through the automatic feeding device, and is then indirectly heated inside the radiation tube. The regenerative burner burns in reverse direction back and forth, realizing upper and lower heating and combustion, causing the heat in the furnace to flow, making the heating temperature of the furnace more uniform, heating quickly, and having high thermal efficiency.

[0007] Furthermore, the furnace roof includes a high-temperature low-cement castable and a fiber blanket, the fiber blanket is arranged on the upper part of the high-temperature low-cement castable, and the high-temperature low-cement castable is fixed by hanging bricks.

[0008] Furthermore, an expansion joint is provided on the furnace top, and the expansion joint is located at the junction of the furnace top and the furnace wall.

[0009] By using the above method, expansion joints are opened to prevent cracking caused by thermal expansion and contraction.

[0010] Furthermore, the furnace wall includes a high-temperature castable and an insulation part. The high-temperature castable is arranged around the side of the top of the refractory brick, and the insulation part is arranged on the inner side of the furnace frame and fits with the side of the high-temperature castable and the refractory brick.

[0011] Furthermore, the heat-insulating portion includes a heat-insulating fiber blanket and a steel plate. The heat-insulating fiber blanket is arranged on the inner side of the furnace frame, and the steel plate is arranged between the heat-insulating fiber blanket and the high-temperature castable.

[0012] Furthermore, the heating device includes a radiation tube and a support material seat, the support material seat is arranged above the casting material, a groove is opened on the upper surface of the support material seat, and the radiation tube is placed in the groove.

[0013] Furthermore, a pulley mechanism is installed on the furnace frame, and the furnace door is slidably connected to the side of the furnace frame through the pulley mechanism.

[0014] Furthermore, the regenerative burners are provided on both sides of the furnace wall, and channels for the regenerative burners are provided on the upper and lower parts of the side walls of the furnace wall and the castable.

[0015] In summary, the present invention has the following advantages and beneficial technical effects:

[0016] 1. This utility model is a low-oxidation double-sided heating regenerative through-type furnace. When the burner is reversing and burning, it also realizes upper and lower heating and combustion at the same time, so that the heat in the furnace flows, making the furnace heating temperature more uniform, heating quickly, and having high thermal efficiency.

[0017] 2. The utility model is a low-oxidation upper and lower double-sided heating heat storage through furnace, which uses radiant tubes for indirect heating, replacing the traditional direct heating of the workpiece, which has the disadvantages of thick oxide scale and uneven heating temperature. Since the workpiece enters the radiant tube for indirect radiation heating, it realizes non-oxidation temperature increase, eliminates the generation of oxide scale on the workpiece during the heating process, saves materials for customers and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 This is a front view of the internal structure of a low-oxidation upper and lower double-sided heating regenerative through-type furnace of the present invention;

[0020] Figure 2 This is a side view of the internal structure of a low-oxidation upper and lower double-sided heating regenerative through-type furnace of the present invention;

[0021] Figure 3 This is a top view of the internal structure of a low-oxidation upper and lower double-sided heating regenerative through-type furnace of the present invention;

[0022] Figure 4 This is a structural diagram of the insulation part of a low-oxidation upper and lower double-sided heating heat storage through furnace of the utility model;

[0023] Figure 5 This utility model Figure 2 A magnified view of the middle panel.

[0024] The reference numerals in the accompanying drawings are:

[0025] 1-furnace top; 11-high temperature low cement castable; 12-fiber blanket; 13-expansion joint;

[0026] 2-furnace wall; 21-high temperature castable; 22-insulating fiber blanket; 23-steel plate; 24-insulation part;

[0027] 3-furnace frame; 4-heating device; 41-radiant tube; 42-support material seat; 5-refractory brick; 51-casting material; 6-regenerative burner; 7-furnace door. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-Figure 5 The present invention will be further described in detail. Examples of embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of this utility model, unless otherwise expressly specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, mechanical or electrical connections, direct or indirect connections through an intermediate medium, and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0030] In the description of this embodiment, the terms "upper", "lower", "right", etc., and the like, are based on the directions or positions shown in the accompanying drawings and are used only for the convenience of description and simplification of operation. They are not intended to indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention. In addition, the terms "first" and "second" are used only to distinguish in the description and have no special meaning. The parts and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art. They will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0031] like Figure 1 and Figure 2 As shown, it includes: a furnace top 1, a furnace wall 2, a grate 3, a heating device 4, refractory bricks 5, a regenerative burner 6 and a furnace door 7. The grate 3 is a frame structure made of channel steel. The refractory bricks 5 are arranged at the bottom of the inner side of the grate by masonry. The furnace wall 2 is arranged around the edge of the top of the refractory bricks 5 and is located on the inner side of the grate 3. A castable 51 is provided on the top of the refractory bricks 5. The heating device 4 is arranged on the castable 51. The furnace top 1 is arranged above the furnace wall. The regenerative burner 6 is installed on the furnace wall 2 and passes through the furnace wall 2 to communicate with the interior. The discharge port is opened on the side of the furnace body. The furnace door 7 is slidably connected to the grate 3. Regenerative burners 6 are provided on both sides of the furnace wall 2. Channels for the regenerative burners 6 are opened on the upper and lower parts of the side walls of the furnace wall 2 and the castable 51.

[0032] like Figure 1 、 Figure 2 and Figure 3 As shown, the furnace roof comprises a high-temperature, low-cement castable 11 and a fiber blanket 12. The fiber blanket 12 is laid atop the high-temperature, low-cement castable 11, which is secured to the top of the furnace body via hanging bricks. An expansion joint 13 is also provided on the furnace roof 1, located at the junction of the furnace roof and the furnace wall 2.

[0033] like Figure 2As shown, the furnace wall 2 includes a high-temperature castable 21 and an insulation part 24. The high-temperature castable 21 is arranged around the side of the top of the refractory brick 5 by pouring, and the insulation part 24 is arranged on the inner side of the grate 3 and fits with the high-temperature castable 21 and the side of the refractory brick 5.

[0034] like Figure 4 As shown, the insulation part 24 includes an insulation fiber blanket 22 and a steel plate 23. The insulation fiber blanket 22 is arranged on the inner side of the furnace frame 3 by laying, and the steel plate 23 is arranged between the insulation fiber blanket 22 and the high-temperature castable 21 through bolt connectors.

[0035] like Figure 5 As shown, the heating device 4 includes a radiant tube 41 and a support base 42. The support base 42 is placed above the castable 51. The support base 42 has a groove on its upper surface, and the radiant tube 41 is placed in the groove. A pulley mechanism is mounted on the furnace frame 3, and the furnace door 7 is slidably connected to the side of the furnace frame 3 via the pulley mechanism.

[0036] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A low-oxidation upper and lower double-sided heating regenerative through-type furnace, characterized in that: include: A furnace top (1), a furnace wall (2), a furnace frame (3), a heating device (4), refractory bricks (5), a regenerative burner (6) and a furnace door (7), wherein the refractory bricks (5) are arranged at the bottom of the inner side of the furnace frame, the furnace wall (2) is arranged around the edge of the top of the refractory bricks (5) and is located on the inner side of the furnace frame (3), a castable (51) is arranged on the top of the refractory bricks (5), the heating device (4) is arranged on the castable (51), the furnace top (1) is arranged above the furnace wall, the regenerative burner (6) is installed on the furnace wall (2) and passes through the furnace wall (2) to communicate with the interior, a discharge port is opened on the side of the furnace body, and the furnace door (7) is located at the discharge port and is slidably connected to the furnace frame (3).

2. The low-oxidation upper and lower double-sided heating regenerative through-type furnace according to claim 1, characterized in that: The furnace roof comprises a high-temperature low-cement castable (11) and a fiber blanket (12), wherein the fiber blanket (12) is arranged on the upper part of the high-temperature low-cement castable (11), and the high-temperature low-cement castable (11) is fixed by hanging bricks.

3. The low-oxidation upper and lower double-sided heating regenerative through-type furnace according to claim 2, characterized in that: An expansion joint (13) is also provided on the furnace top (1), and the expansion joint (13) is located at the junction of the furnace top and the furnace wall (2).

4. The low-oxidation upper and lower double-sided heating regenerative through-type furnace according to claim 1, characterized in that: The furnace wall (2) includes a high-temperature castable (21) and a heat-insulating portion (24), wherein the high-temperature castable (21) is arranged around the side of the top of the refractory brick (5), and the heat-insulating portion (24) is arranged on the inner side of the furnace frame (3) and is in contact with the side of the high-temperature castable (21) and the refractory brick (5).

5. The low-oxidation upper and lower double-sided heating regenerative through-type furnace according to claim 4, characterized in that: The heat-insulating portion (24) comprises a heat-insulating fiber blanket (22) and a steel plate (23), wherein the heat-insulating fiber blanket (22) is arranged on the inner side of the furnace frame (3), and the steel plate (23) is arranged between the heat-insulating fiber blanket (22) and the high-temperature castable (21).

6. The low-oxidation upper and lower double-sided heating regenerative through-type furnace according to claim 1, characterized in that: The heating device (4) comprises a radiation tube (41) and a support material seat (42), wherein the support material seat (42) is arranged above the casting material (51), and a groove is provided on the upper surface of the support material seat (42), and the radiation tube (41) is placed in the groove.

7. The low-oxidation upper and lower double-sided heating regenerative through-type furnace according to claim 1, characterized in that: A pulley mechanism is installed on the furnace frame (3), and the furnace door (7) is slidably connected to the side of the furnace frame (3) through the pulley mechanism.

8. The low-oxidation upper and lower double-sided heating regenerative through-type furnace according to claim 1, characterized in that: The regenerative burners (6) are provided on both sides of the furnace wall (2), and channels for the regenerative burners (6) are provided on the upper and lower parts of the side walls of the furnace wall (2) and the castable (51).

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