Radiant tube heating device

Abstract

The utility model relates to the technical field of radiant tubes, and discloses a radiant tube heating device which comprises a radiant tube body, a processing mechanism is arranged outside the radiant tube body, a heat exchange mechanism is arranged at one end of the processing mechanism, the processing mechanism comprises an exhaust pipe, one end of the exhaust pipe is fixedly communicated with a processing shell, and the processing shell is provided with a heat exchange mechanism. A filter screen is mounted in the treatment shell, a waste gas treatment assembly is mounted at one end of the treatment shell, a supporting plate is fixedly connected to the interior of the treatment shell, a rotating shaft is mounted at one end of the supporting plate, fan blades are mounted at one end of the rotating shaft, and a cleaning brush is mounted at the other end of the rotating shaft; the bottom of the treatment shell fixedly communicates with a cleaning pipe, the waste gas treatment assembly comprises a treatment pipe and a treatment box, a sliding groove is formed in the treatment box, an activated carbon plate is slidably connected into the sliding groove, and according to the radiant tube heating device, the operation of flue gas treatment is completed through the treatment mechanism, and the effect of preventing blockage from affecting flue gas discharge is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of radiant tubes, and specifically relates to a radiant tube heating device. Background Art

[0002] A radiant tube refers to a pipe that extends linearly from the center in all directions. Radiant tubes are widely used in heating furnaces and are the main heating elements of heating furnaces. Gas radiant tubes are commonly used heating devices in industrial kilns. The main heat transfer method is radiation. The combustion atmosphere and combustion products of gas radiant tubes do not come into direct contact with the workpiece to be heated, greatly improving the quality of products. They are widely used in the fields of metal heat treatment and industrial drying.

[0003] According to a continuous annealing furnace radiant tube heating device disclosed in Chinese Patent Publication No. CN 217895680 U, the device includes a fixing plate. A radiant tube body is arranged on the lower surface of the fixing plate. An exhaust pipe is connected to the left side of the radiant tube body. An auxiliary exhaust part is connected to the left side of the exhaust pipe. A heat exchange box is connected above the auxiliary exhaust part. An exhaust port is arranged on the upper surface of the heat exchange box. A filter cotton board is arranged inside the exhaust port. An activated carbon board is arranged above the filter cotton board. Connecting blocks are fixed at both ends of the activated carbon board and the filter cotton board. The continuous annealing furnace radiant tube heating device enables the waste gas generated during the operation of the radiant tube body to be discharged to the outside through the exhaust port through the exhaust pipe arranged on the radiant tube body. The filter cotton board and the activated carbon board arranged inside the exhaust port can filter and purify the impurities in the waste gas, thereby avoiding the pollution of the environment by the harmful gases of the impurities in the waste gas and improving the practicability.

[0004] However, when this device is in use, although larger impurities are filtered by the filter screen, there is no corresponding discharge and cleaning mechanism. Large particle impurities are likely to remain in the pipeline and cause the filter screen to be blocked, affecting the passage of flue gas, making the device have certain limitations. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a radiant tube heating device to solve the problem proposed in the above background art that when this device is in use, although larger impurities are filtered by the filter screen, there is no corresponding discharge and cleaning mechanism. Large particle impurities are likely to remain in the pipeline and cause the filter screen to be blocked, affecting the passage of flue gas, making the device have certain limitations.

[0006] To solve the above technical problems, the utility model provides the following technical solution: A radiant tube heating device includes a radiant tube body. A processing mechanism is arranged outside the radiant tube body. A heat exchange mechanism is arranged at one end of the processing mechanism.

[0007] The processing mechanism includes an exhaust pipe, one end of the exhaust pipe is fixedly communicated with a processing shell, a filter screen is installed inside the processing shell, an exhaust gas processing component is installed at one end of the processing shell, a support plate is fixedly connected inside the processing shell, a rotating shaft is installed at one end of the support plate, a fan blade is installed at one end of the rotating shaft, a cleaning brush is installed at the other end of the rotating shaft, and a cleaning pipe is fixedly communicated with the bottom of the processing shell.

[0008] Preferably, the exhaust gas processing component includes a processing pipe and a processing box. A chute is opened inside the processing box, an activated carbon plate is slidably connected inside the chute, and a sealing plate is fixedly connected to one end of the activated carbon plate.

[0009] Preferably, one end of the processing pipe is fixedly communicated with one end of the processing shell, and one end of the sealing plate is clamped with one end of the processing box.

[0010] Preferably, one end of the exhaust pipe is fixedly communicated with one end of the radiation pipe body, and one end of the cleaning brush is attached to one end of the filter screen.

[0011] Preferably, the heat exchange mechanism includes a heat exchange shell, a heat exchange pipe is installed inside the heat exchange shell, heat conduction fins are installed outside the heat exchange pipe, heat absorption fins are installed outside the heat conduction fins, and a ceramic heat storage body is installed inside the heat exchange pipe.

[0012] Preferably, one end of the heat exchange shell is fixedly communicated with one end of the processing pipe, and the other end is fixedly communicated with one end of the processing box.

[0013] Preferably, the heat exchange pipe is arranged in a bent shape, and one end of the heat exchange pipe is fixedly communicated with one end of the radiation pipe body.

[0014] Compared with the prior art, the beneficial effects achieved by the present utility model are:

[0015] First, the utility model is connected with the flue gas discharge pipe at one end of the radiation pipe body through an exhaust pipe, and then the flue gas enters the inside of the treatment shell from the exhaust pipe. Then, the flue gas is filtered by a filter screen to prevent large particle impurities from entering the other end of the treatment shell. The blocked large particle impurities fall into the inside of the cleaning pipe and are collected. Then, when the flue gas enters, it blows the fan blades outside the rotating shaft, causing the fan blades to rotate, which in turn causes the rotating shaft to rotate, and further drives the cleaning brush at the other end of the rotating shaft to rotate. Then, the cleaning brush cleans the filter screen to prevent large particle impurities from adhering and blocking the filter screen. Then, the large particle impurities also enter the cleaning pipe for collection. After heating, open the sealing cover outside the cleaning pipe to clean the impurities. After the flue gas is filtered for particle impurities, it enters the heat exchange shell through the treatment pipe, then enters the treatment box through the heat exchange shell. Then, the flue gas passes through the activated carbon plate in the treatment box, and the harmful gases in the flue gas are adsorbed by the activated carbon plate, and then discharged through the opening at the top of the treatment box. Then, the activated carbon plate is slidably connected to the treatment box, making it convenient to pull out the activated carbon plate from the treatment box for cleaning or replacement. The sealing plate seals the treatment box during flue gas treatment to prevent flue gas leakage, thus completing the operation of flue gas treatment and achieving the effect of preventing blockage and affecting flue gas discharge.

[0016] Second, the utility model allows the flue gas to enter the inside of the heat exchange shell. The heat absorption fins absorb the heat in the flue gas, and then conduct the heat into the inside of the heat exchange pipe through the heat conduction fins. Then, the ceramic heat storage body in the heat exchange pipe absorbs the heat for heat storage. Then, one end of the heat exchange pipe is connected to the air pipe at one end of the radiation pipe body, and the other end is connected to the external combustion-supporting air inlet pipe, so that the combustion-supporting air first enters the heat exchange pipe and passes through the ceramic heat storage body. The ceramic heat storage body preheats the combustion-supporting air to improve the combustion efficiency, thus achieving the effect of waste heat utilization. The ceramic heat storage body is a prior art, and its working principle is well-known to those skilled in the art, so no detailed description is given. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall three-dimensional view of the utility model;

[0018] Figure 2 is the three-dimensional view of the treatment mechanism of the utility model;

[0019] Figure 3 is the three-dimensional view of the heat exchange mechanism of the utility model;

[0020] Figure 4 is the enlarged view of part A of the utility model.

[0021] Wherein: 1. Radiation tube body; 2. Treatment mechanism; 3. Heat exchange mechanism; 21. Exhaust pipe; 22. Treatment shell; 23. Filter screen; 24. Waste gas treatment component; 25. Support plate; 26. Rotating shaft; 27. Fan blade; 28. Cleaning brush; 29. Cleaning pipe; 201. Treatment pipe; 202. Treatment box; 203. Activated carbon plate; 204. Sealing plate; 31. Heat exchange shell; 32. Heat exchange pipe; 33. Heat conducting fin; 34. Heat absorbing fin; 35. Ceramic heat storage body. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] The present invention provides the following technical solutions:

[0024] Embodiment 1

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , a radiation tube heating device, including a radiation tube body 1, a treatment mechanism 2 is arranged outside the radiation tube body 1, and a heat exchange mechanism 3 is arranged at one end of the treatment mechanism 2;

[0026] The treatment mechanism 2 includes an exhaust pipe 21, one end of the exhaust pipe 21 is fixedly communicated with a treatment shell 22, a filter screen 23 is installed inside the treatment shell 22, a waste gas treatment component 24 is installed at one end of the treatment shell 22, a support plate 25 is fixedly connected inside the treatment shell 22, a rotating shaft 26 is installed at one end of the support plate 25, a fan blade 27 is installed at one end of the rotating shaft 26, a cleaning brush 28 is installed at the other end of the rotating shaft 26, and a cleaning pipe 29 is fixedly communicated with the bottom of the treatment shell 22.

[0027] The waste gas treatment component 24 includes a treatment pipe 201 and a treatment box 202. A chute is opened inside the treatment box 202, and an activated carbon plate 203 is slidably connected inside the chute. One end of the activated carbon plate 203 is fixedly connected with a sealing plate 204.

[0028] One end of the treatment pipe 201 is fixedly communicated with one end of the treatment shell 22, and one end of the sealing plate 204 is clamped with one end of the treatment box 202.

[0029] One end of the exhaust pipe 21 is fixedly communicated with one end of the radiation tube body 1, and one end of the cleaning brush 28 is attached to one end of the filter screen 23.

[0030] Through the above technical solution, at this time, the exhaust pipe 21 is communicated with the flue gas discharge pipe at one end of the radiation pipe body 1, and then the flue gas enters the interior of the treatment shell 22 from the exhaust pipe 21. Then, the flue gas is filtered by the filter screen 23 to prevent large particle impurities from entering the other end of the treatment shell 22. The blocked large particle impurities fall into the interior of the cleaning pipe 29 and are collected. Then, when the flue gas enters, it blows the fan blades 27 outside the rotating shaft 26, causing the fan blades 27 to rotate, so that the rotating shaft 26 also rotates, and then drives the cleaning brush 28 at the other end of the rotating shaft 26 to rotate. Then, the cleaning brush 28 cleans the filter screen 23 to prevent large particle impurities from adhering and blocking on the filter screen 23. Then, the large particle impurities also enter the cleaning pipe 29 for collection. After heating, open the sealing cover outside the cleaning pipe 29 to clean up the impurities. After the flue gas is filtered for particle impurities, it enters the heat exchange shell 31 through the treatment pipe 201, and then enters the treatment box 202 through the heat exchange shell 31. Then, the flue gas passes through the activated carbon plate 203 in the treatment box 202, and the harmful gases in the flue gas are adsorbed by the activated carbon plate 203, and then discharged through the opening at the top of the treatment box 202. Then, the activated carbon plate 203 is slidably connected to the treatment box 202, so that the activated carbon plate 203 can be conveniently pulled out of the treatment box 202 for cleaning or replacement. The sealing plate 204 enables the treatment box 202 to be sealed during flue gas treatment to avoid flue gas leakage, thus completing the operation of flue gas treatment and achieving the effect of preventing blockage and affecting flue gas discharge.

[0031] Embodiment 2

[0032] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and, on the basis of Embodiment 1, it is further obtained that the heat exchange mechanism 3 includes a heat exchange shell 31. A heat exchange tube 32 is installed inside the heat exchange shell 31. A heat conducting fin 33 is installed outside the heat exchange tube 32. A heat absorbing fin 34 is installed outside the heat conducting fin 33. A ceramic heat storage body 35 is installed inside the heat exchange tube 32.

[0033] One end of the heat exchange shell 31 is fixedly communicated with one end of the treatment pipe 201, and the other end is fixedly communicated with one end of the treatment box 202.

[0034] The heat exchange tube 32 is arranged in a bent shape, and one end of the heat exchange tube 32 is fixedly communicated with one end of the radiation pipe body 1.

[0035] Through the above technical solution, at this time, the flue gas enters the interior of the heat exchange shell 31, the heat absorption fins 34 absorb the heat in the flue gas, and then the heat is conducted into the interior of the heat exchange tube 32 through the heat conduction fins 33. Then, the ceramic regenerator 35 in the heat exchange tube 32 absorbs the heat for heat storage. Then, one end of the heat exchange tube 32 is communicated with the air pipeline at one end of the radiation tube body 1, and the other end is communicated with the external combustion-supporting air inlet pipe, so that the combustion-supporting air first enters the heat exchange tube 32 and passes through the ceramic regenerator 35. The ceramic regenerator 35 preheats the combustion-supporting air to improve the combustion efficiency, thereby achieving the effect of waste heat utilization. The ceramic regenerator 35 is a prior art, and its working principle is well known to those skilled in the art, so it will not be described in detail.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit. The scope is defined by the appended claims and their equivalents.

Claims

1. A radiant tube heating device, comprising a radiant tube body (1), characterized in that: A processing mechanism (2) is arranged outside the radiation tube body (1), and a heat exchange mechanism (3) is arranged at one end of the processing mechanism (2); The treatment mechanism (2) comprises an exhaust pipe (21), one end of the exhaust pipe (21) is fixedly connected to a treatment shell (22), a filter screen (23) is installed inside the treatment shell (22), one end of the treatment shell (22) is installed with an exhaust gas treatment component (24), the inside of the treatment shell (22) is fixedly connected to a support plate (25), one end of the support plate (25) is installed with a rotating shaft (26), one end of the rotating shaft (26) is installed with a fan blade (27), the other end of the rotating shaft (26) is installed with a cleaning brush (28), and the bottom of the treatment shell (22) is fixedly connected to a cleaning pipe (29).

2. A radiant tube heating device according to claim 1, characterized in that: The waste gas treatment component (24) comprises a treatment pipe (201) and a treatment box (202), wherein a slide groove is provided inside the treatment box (202), an activated carbon plate (203) is slidably connected inside the slide groove, and a sealing plate (204) is fixedly connected to one end of the activated carbon plate (203).

3. A radiant tube heating device according to claim 2, characterized in that: One end of the processing tube (201) is fixedly connected to one end of the processing shell (22), and one end of the sealing plate (204) is clamped to one end of the processing box (202).

4. A radiant tube heating device according to claim 1, characterized in that: One end of the exhaust pipe (21) is fixedly connected to one end of the radiation tube body (1), and one end of the cleaning brush (28) is in contact with one end of the filter screen (23).

5. The radiant tube heating device according to claim 1, characterized in that: The heat exchange mechanism (3) comprises a heat exchange shell (31), a heat exchange tube (32) is installed inside the heat exchange shell (31), a heat conducting plate (33) is installed outside the heat exchange tube (32), a heat absorbing plate (34) is installed outside the heat conducting plate (33), and a ceramic heat storage body (35) is installed inside the heat exchange tube (32).

6. A radiant tube heating device according to claim 5, characterized in that: One end of the heat exchange shell (31) is fixedly connected to one end of the processing tube (201), and the other end is fixedly connected to one end of the processing box (202).

7. The radiant tube heating device according to claim 5, characterized in that: The heat exchange tube (32) is arranged in a bent shape, and one end of the heat exchange tube (32) is firmly connected to one end of the radiation tube body (1).

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