Stepping heating furnace

Abstract

The utility model discloses a walking beam furnace which comprises a heating furnace body, two ends of the heating furnace body are respectively provided with a material guide cavity, the upper end of the heating furnace body is connected with an exhaust pipe, one end of the exhaust pipe is connected with a heat exchanger, an output port of the heat exchanger is connected with an output pipe, and one end of the output pipe is provided with a reversing pipe. The number of the reversing pipes is two. The tail gas filtering device has the beneficial effects that by arranging the reversing pipe, the knob, the screw rod, the guide rod, the reversing plate and the two groups of filter cartridges, the screw rod is driven to rotate through the knob in the tail gas filtering process, so that the reversing plate moves in the reversing pipe under the action of threads and the guide rod; the flowing direction of the tail gas can be changed by changing the position of the tail gas in the reversing pipe, so that the two groups of filter cartridges can be alternately used, and the other group of filter cartridges can be switched to filter when one group of filter cartridges is seriously blocked, so that the heating effect and the heating efficiency of the device are ensured, the shutdown of the device is avoided, and the using effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of walking beam heating furnaces, in particular to a walking beam heating furnace. Background Art

[0002] A walking-beam heating furnace is a continuous heating furnace that moves the billet forward step by step by the rising, advancing, descending, and retreating movements of the furnace bottom or water-cooled metal beam. A walking-beam heating furnace is also a continuous heating furnace that moves the steel in the furnace step by step by a dedicated stepping mechanism that moves along a certain trajectory (usually a rectangular trajectory). Therefore, it is called a walking-beam heating furnace.

[0003] Patent No. CN201922495298.9 discloses an improved walking-type continuous heating furnace, including a rotating shaft platform, a translation frame, a polyester insulation shell and a lifting base. The rotating shaft platform is provided with a rotating shaft inside, and a toothed gear is provided on the outside of the rotating shaft. A conveyor belt is provided on the outside of the toothed gear, and a rotating motor is installed in front of the toothed gear.

[0004] Although the above patent states that during use, the device will produce certain metal impurities and ash during the operation of the device by setting a filter, so that the device can be filtered to prevent large particles of impurities and ash from polluting the air and eliminating safety hazards. However, in the actual filtering process, when the filter is severely clogged, the device needs to be stopped for treatment, which not only affects the heating effect and heating efficiency of the device, but also makes it impossible for the device to continuously and efficiently filter the exhaust gas, resulting in poor use of the device. Therefore, a step-by-step heating furnace is urgently needed to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The technical problem to be solved by the utility model is aimed at the current status of the prior art, and now provides a walking heating furnace which can continuously and efficiently filter the tail gas, ensure the heating effect and heating efficiency of the device, and has good use effect.

[0007] (II) Technical solution

[0008] The utility model is achieved through the following technical scheme: the utility model proposes a step-by-step heating furnace, including a heating furnace body, both ends of the heating furnace body are provided with a material guiding cavity, the upper end of the heating furnace body is connected with an exhaust pipe, one end of the exhaust pipe is connected with a heat exchanger, the output port of the heat exchanger is connected with an output pipe, one end of the output pipe is provided with a reversing pipe, there are two groups of reversing pipes, two groups of filter cartridges are symmetrically installed between the reversing pipes, the middle part of the reversing pipe located above is connected with a discharge pipe, a screw is installed in the reversing pipe, a guide rod is arranged above the screw, one end of the screw is connected with a knob, a reversing plate is sleeved on the screw and the guide rod, a threaded cavity is opened in the middle part of the reversing plate, a guide hole is opened on the reversing plate, and a sealing ring is arranged on the periphery of the reversing plate.

[0009] Furthermore, the material guiding cavity is formed on the heating furnace body, and the exhaust pipe is welded to the heating furnace body.

[0010] By adopting the above technical solution, the steel billet enters the heating furnace body through the material guiding cavity for heating, and the tail gas generated during the heating process is discharged through the exhaust pipe.

[0011] Furthermore, the heat exchanger is connected to the exhaust pipe via bolts, and the output pipe is connected to the heat exchanger via bolts.

[0012] By adopting the above technical solution, the heat exchanger can reduce the temperature of the exhaust gas.

[0013] Furthermore, one end of the output pipe is fixedly connected to the reversing pipe, the filter cartridge is connected to the reversing pipe via threads, and the discharge pipe is fixedly connected to the middle of the reversing pipe.

[0014] By adopting the above technical solution, the tail gas after cooling is filtered by the reversing pipe and the filter cartridge and finally discharged through the discharge pipe.

[0015] Furthermore, the screw rod is rotatably connected to the reversing tube, the guide rod is welded inside the reversing tube, and the knob is fixedly connected to one end of the screw rod.

[0016] By adopting the above technical solution, the knob can drive the screw rod to rotate, and the guide rod can limit and guide the movement of the reversing plate.

[0017] Furthermore, the threaded cavity and the guide hole are both formed on the reversing plate, the guide rod passes through the guide hole, and the screw rod is rotatably connected to the threaded cavity.

[0018] By adopting the above technical solution, the threaded cavity provides an installation space for the screw rod, and the guide hole provides an installation space for the guide rod.

[0019] Furthermore, the sealing ring is connected to the reversing plate via screws.

[0020] By adopting the above technical solution, the sealing ring can seal between the reversing plate and the reversing tube.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] In order to solve the problem that in the existing step-by-step heating furnace, when the filter plate is seriously clogged during the filtering process of exhaust gas, the device needs to be shut down for treatment, which not only affects the heating effect and heating efficiency of the device, but also makes it impossible for the device to continuously and efficiently filter and treat the exhaust gas, resulting in poor use effect of the device, the utility model provides a reversing tube, a knob, a screw, a guide rod, a reversing plate and two groups of filter cartridges. During the filtering process of exhaust gas, the screw is driven to rotate by the knob, and then the reversing plate moves in the reversing tube under the action of the thread and the guide rod, and the flow direction of the exhaust gas can be changed by changing its position in the reversing tube, so that the two groups of filter cartridges can be used alternately, and when one group of filter cartridges is seriously clogged, it can switch to the other group of filter cartridges for filtering, thereby ensuring the heating effect and heating efficiency of the device, avoiding its shutdown, and improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the walking beam heating furnace of the utility model;

[0025] Figure 2 It is a main cross-sectional view of the reversing tube in the walking beam heating furnace of the utility model;

[0026] Figure 3 It is a front view of the reversing plate in the walking beam heating furnace described in the utility model.

[0027] The following are the descriptions of the reference numerals:

[0028] 1. Material guide cavity; 2. Heating furnace body; 3. Exhaust pipe; 4. Discharge pipe; 5. Filter cartridge; 6. Reversing pipe; 7. Output pipe; 8. Heat exchanger; 9. Reversing plate; 10. Guide rod; 11. Screw; 12. Knob; 13. Guide hole; 14. Threaded cavity; 15. Sealing ring. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] like Figure 1-Figure 3 As shown, the walking beam heating furnace in this embodiment includes a heating furnace body 2, both ends of the heating furnace body 2 are provided with a material guide cavity 1, the upper end of the heating furnace body 2 is connected to an exhaust pipe 3, the billet enters the heating furnace body 2 through the material guide cavity 1 for heating, the exhaust gas generated during the heating process is discharged through the exhaust pipe 3, one end of the exhaust pipe 3 is connected to a heat exchanger 8, the heat exchanger 8 can reduce the temperature of the exhaust gas, the output port of the heat exchanger 8 is connected to an output pipe 7, one end of the output pipe 7 is provided with a reversing pipe 6, there are two groups of reversing pipes 6, two groups of filter cartridges 5 are symmetrically installed between the reversing pipes 6, the middle part of the reversing pipe 6 located at the top is connected to the exhaust pipe 4, the cooled exhaust gas passes through the reversing pipe 6 and the filter cartridge 5, and the exhaust gas is discharged through the reversing pipe 6. After filtration, the cylinder 5 is finally discharged through the discharge pipe 4. A screw 11 is installed in the reversing tube 6, and a guide rod 10 is arranged above the screw 11. A knob 12 is connected to one end of the screw 11, and the knob 12 can drive the screw 11 to rotate. The guide rod 10 can limit and guide the movement of the reversing plate 9. The reversing plate 9 is sleeved on the screw 11 and the guide rod 10. A threaded cavity 14 is opened in the middle of the reversing plate 9, and a guide hole 13 is opened on the reversing plate 9. The threaded cavity 14 provides an installation space for the screw 11, and the guide hole 13 provides an installation space for the guide rod 10. A sealing ring 15 is arranged on the periphery of the reversing plate 9, and the sealing ring 15 can seal between the reversing plate 9 and the reversing tube 6.

[0031] like Figure 1-Figure 3 As shown, in this embodiment, the material guiding cavity 1 is formed on the heating furnace body 2, the exhaust pipe 3 is welded to the heating furnace body 2, the heat exchanger 8 is connected to the exhaust pipe 3 by bolts, the output pipe 7 is connected to the heat exchanger 8 by bolts, one end of the output pipe 7 is fixedly connected to the reversing pipe 6, the filter cartridge 5 is connected to the reversing pipe 6 by threads, the discharge pipe 4 is fixedly connected to the middle part of the reversing pipe 6, the screw 11 is rotatably connected to the reversing pipe 6, the guide rod 10 is welded in the reversing pipe 6, and the knob 12 is fixedly connected to one end of the screw 11.

[0032] like Figure 1-Figure 3 As shown, in this embodiment, the screw 11 is rotatably connected to the reversing tube 6, the guide rod 10 is welded in the reversing tube 6, the knob 12 is fixedly connected to one end of the screw 11, the threaded cavity 14 and the guide hole 13 are both formed on the reversing plate 9, the guide rod 10 passes through the guide hole 13, the screw 11 is rotatably connected to the threaded cavity 14, and the sealing ring 15 is connected to the reversing plate 9 by screws.

[0033] The specific implementation process of this embodiment is as follows: when in use, the steel billet enters the heating furnace body 2 through the material guide cavity 1 for heating, and the exhaust gas generated during the heating process is discharged through the exhaust pipe 3. The heat exchanger 8 can reduce the temperature of the exhaust gas. The cooled exhaust gas is filtered through the reversing tube 6 and the filter cartridge 5 and finally discharged through the exhaust pipe 4. In the process of filtering the exhaust gas, the screw 11 is driven to rotate by the knob 12, and then the reversing plate 9 moves in the reversing tube 6 under the action of the thread and the guide rod 10. The flow direction of the exhaust gas can be changed by changing its position in the reversing tube 6, so that the two groups of filter cartridges 5 can be used alternately, and when one group of filter cartridges 5 is seriously clogged, it can be switched to another group of filter cartridges 5 for filtering, thereby ensuring the heating effect and heating efficiency of the device, avoiding its shutdown, and improving the use effect of the device.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Walking beam heating furnace, characterized by: The invention comprises a heating furnace body (2), wherein both ends of the heating furnace body (2) are provided with a material guide cavity (1), the upper end of the heating furnace body (2) is connected to an exhaust pipe (3), one end of the exhaust pipe (3) is connected to a heat exchanger (8), the output port of the heat exchanger (8) is connected to an output pipe (7), one end of the output pipe (7) is provided with a reversing pipe (6), the reversing pipe (6) has two groups, two groups of filter cartridges (5) are symmetrically installed between the reversing pipes (6), and the reversing pipe (6) located at the upper end is connected to the outlet port of the heat exchanger (8). 6) is connected to a discharge pipe (4) in the middle, a screw (11) is installed in the reversing tube (6), a guide rod (10) is arranged above the screw (11), a knob (12) is connected to one end of the screw (11), a reversing plate (9) is sleeved on the screw (11) and the guide rod (10), a threaded cavity (14) is opened in the middle of the reversing plate (9), a guide hole (13) is opened on the reversing plate (9), and a sealing ring (15) is arranged on the outer periphery of the reversing plate (9).

2. The walking beam heating furnace according to claim 1, characterized in that: The material guiding cavity (1) is formed on the heating furnace body (2), and the exhaust pipe (3) is welded to the heating furnace body (2).

3. The walking beam heating furnace according to claim 1, characterized in that: The heat exchanger (8) is connected to the exhaust pipe (3) via bolts, and the output pipe (7) is connected to the heat exchanger (8) via bolts.

4. The walking beam heating furnace according to claim 1, characterized in that: One end of the output pipe (7) is fixedly connected to the reversing pipe (6), the filter cartridge (5) is connected to the reversing pipe (6) via threads, and the discharge pipe (4) is fixedly connected to the middle of the reversing pipe (6).

5. The walking beam heating furnace according to claim 4, characterized in that: The screw rod (11) is rotatably connected to the reversing tube (6), the guide rod (10) is welded inside the reversing tube (6), and the knob (12) is fixedly connected to one end of the screw rod (11).

6. The walking beam heating furnace according to claim 5, characterized in that: The threaded cavity (14) and the guide hole (13) are both formed on the reversing plate (9), the guide rod (10) passes through the guide hole (13), and the screw rod (11) is rotatably connected to the threaded cavity (14).

7. The walking beam heating furnace according to claim 6, characterized in that: The sealing ring (15) is connected to the reversing plate (9) via screws.

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