Environment-friendly exhaust device of vacuum furnace

Abstract

The utility model relates to an environment-friendly exhaust device for a vacuum furnace, and belongs to the technical field of vacuum furnaces, the environment-friendly exhaust device comprises a vacuum furnace body, a flue located on the vacuum furnace body and an exhaust structure communicated with the flue, and a primary filtering structure is arranged at the end of the flue; the primary filtering structure comprises a mounting disc and a filter screen component; the mounting disc is connected to the end part of the flue through a flange; the filter screen component is rotationally mounted in the mounting disc; and the filter screen component comprises four filter screen frames. According to the environment-friendly exhaust device of the vacuum furnace, the flue and the purification pipe are connected through the mounting disc and the connecting disc, the four filter screen frames are arranged for mounting the filter screens, and the filter screen supports are arranged for driving the four filter screen frames to rotate in the mounting disc, so that the filter screens corresponding to the flue can be rotated and replaced, and a bayonet socket is additionally arranged on the connecting disc; and by arranging a cleaning opening, the adjusted filter screen can be conveniently washed, the overall cleaning convenience of the device is improved, and the service life of the device is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of vacuum furnaces, and specifically to an environmental protection exhaust device for a vacuum furnace. Background Technique

[0002] A vacuum furnace is a device used for high-temperature treatment in a vacuum environment. It usually consists of parts such as a furnace body, a vacuum system, a heating system, and a control system. The vacuum furnace can create a low-pressure or vacuum environment by exhausting oxygen and other gases, thereby preventing materials from oxidizing or undergoing other chemical reactions at high temperatures.

[0003] After retrieval, refer to the utility model patent with the publication number CN217746267U, an exhaust device for an environment-friendly vacuum furnace. An exhaust pipe is installed above the exhaust port of the vacuum furnace, and a filter box is installed at the other end of the exhaust pipe. A filter screen plate and an activated carbon plate are penetrated and installed on the upper side wall of the filter box. Sealing gaskets that fit the inner wall of the filter box are adhered to the side walls of the filter screen plate and the activated carbon plate. A water outlet pipe is installed inside the filter box and on the right side of the filter screen plate. A spray head is installed on the pipe wall of the water outlet pipe. First, the setting of the filter screen plate and the activated carbon plate can double-filter the impurities in the gas, which can improve the cleanliness of the gas. The setting of the sealing gasket can ensure the tightness of the connection. The setting of the water outlet pipe and the spray head can regularly wash the filter screen plate, which can wash away the adsorbed impurities.

[0004] The above patent application proposes a vacuum furnace that improves the effect of the reusable filter by adding a device with a cleanable filter to its exhaust end. However, the water pipe and spray head used for cleaning the filter in the above patent application are both built into the exhaust pipe. Affected by high-temperature flue gas for a long time, the spray head is likely to deform, reducing its service life. In view of the above problems, an environmental protection exhaust device for a vacuum furnace is proposed to solve the problems raised above. Utility Model Content

[0005] Aiming at the deficiencies of the prior art, this application provides an environmental protection exhaust device for a vacuum furnace, which has the advantages of an alternately replaceable exhaust structure and external cleaning.

[0006] To achieve the above object, this application provides the following technical solution: An environmental protection exhaust device for a vacuum furnace includes a vacuum furnace body, a flue located on the vacuum furnace body, and an exhaust structure communicated with the flue. An initial filtration structure is provided at the end of the flue;

[0007] The primary filtration structure includes a mounting disc flange - connected to the end of the flue and a filter screen member rotatably installed within the mounting disc. The filter screen member includes four filter screen frames, and filter screens for filtering the gas in the flue are fixedly installed in all four filter screen frames. A filter screen support is fixedly connected among the four filter screen frames.

[0008] Furthermore, the exhaust structure includes a connection disc located at the end of the flue and a purification pipe located at one end of the connection disc and communicating with one side of the connection disc.

[0009] Furthermore, a support bushing is suspended outside the flue, and a rotating shaft fixedly connected to the filter screen support is rotatably installed within the support bushing.

[0010] Furthermore, an adjusting nut is fixedly connected to one end of the rotating shaft, and the adjusting nut has a hexagonal counterbore.

[0011] Furthermore, a socket corresponding to the inner diameter of the filter screen frame is fixedly installed inside the connection disc. The socket is inserted into the filter screen frame and communicates with the purification pipe.

[0012] Furthermore, a cleaning port for flushing the filter screen in the mounting disc is opened on one side surface of the connection disc, and water outlets for discharging the cleaning water are opened at the lower ends of both the connection disc and the mounting disc.

[0013] Furthermore, a C - shaped clamp is fixedly connected to the outside of the mounting disc, and an adjusting bolt for clamping the mounting disc and the connection disc is threadedly connected to the side surface of the C - shaped clamp away from the mounting disc.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] In this vacuum furnace environmental protection exhaust device, the flue and the purification pipe are connected through the mounting disc and the connection disc. Four filter screen frames are provided to install the filter screens, and the filter screen support drives the four filter screen frames to rotate within the mounting disc, enabling the filter screen corresponding to the flue to be rotated and replaced. Additionally, a socket is added on the connection disc to facilitate improving the connection tightness between the filter screen and the purification pipe. By providing the cleaning port, it is convenient to flush the adjusted filter screen, improving the overall cleaning convenience and service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of this application;

[0017] Figure 2 is the side - view structural schematic diagram of the mounting disc of this application;

[0018] Figure 3It is a three-dimensional structure diagram of the adjusting nut connecting the support bushing in this application;

[0019] Figure 4 It is a cross-sectional structure diagram of the installation disk and the connection disk connected in this application.

[0020] In the figure: 1. Vacuum furnace body; 2. Flue; 3. Installation disk; 4. Connection disk; 5. Purification pipe; 6. Filter screen support; 7. Filter screen frame; 8. Filter screen; 9. Rotating shaft; 10. Support bushing; 11. Adjusting nut; 12. Plug-in socket; 13. Cleaning port; 14. Water outlet; 15. C-shaped clamp; 16. Adjusting bolt. Specific implementation manners

[0021] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0022] Please refer to Figures 1-4 , a vacuum furnace environmental protection exhaust device in this embodiment includes a vacuum furnace body 1, a flue 2 located on the vacuum furnace body 1, and an exhaust structure communicated with the flue 2. The vacuum furnace body 1 discharges high-temperature flue gas outward through the flue 2. At this time, harmful components in the flue gas are blocked by the exhaust structure, reducing environmental pollution caused by direct emissions.

[0023] In this embodiment, the exhaust structure includes a connection disk 4 located at the end of the flue 2 and a purification pipe 5 located at one end of the connection disk 4 and communicated with one side of the connection disk 4. Double-layer activated carbon can be replaceably placed in the purification pipe 5 to complete the secondary filtration of the flue gas and improve the purification effect of the flue gas.

[0024] It should be noted that an initial filtration structure is provided at the end of the flue 2 to complete the primary purification of the flue gas, assisting the exhaust structure to maximize the improvement of the environmental protection of the flue gas.

[0025] The initial filtration structure in this embodiment includes an installation disk 3 flange-connected to the end of the flue 2 and a filter screen member rotatably installed in the installation disk 3. The filter screen member includes four filter screen frames 7, and filter screens 8 for filtering the gas in the flue 2 are fixedly installed in all four filter screen frames 7.

[0026] Preferably, a filter screen support 6 is fixedly connected among the four filter screen frames 7, and by rotating the filter screen support 6, the four filter screen frames 7 and the filter screens 8 can be driven to rotate and replace positions in the installation disk 3.

[0027] In this embodiment, a support bushing 10 is also suspended outside the flue 2. A rotating shaft 9 fixedly connected to the filter screen support 6 is rotatably installed inside the support bushing 10. During use, by rotating the rotating shaft 9, the position of the filter screen frame 7 inside the mounting disc 3 can be adjusted.

[0028] It should be noted that an adjusting nut 11 is fixedly connected to one end of the rotating shaft 9. By rotating the adjusting nut 11, the rotating shaft 9 can be driven to rotate. Moreover, since the adjusting nut 11 has a hexagonal counterbore, it is convenient to use tools to rotate the rotating shaft 9.

[0029] It should be noted that an insertion socket 12 corresponding to the inner diameter of the filter screen frame 7 is fixedly installed inside the connection disc 4. The insertion socket 12 is inserted into the filter screen frame 7 and communicates with the purification pipe 5.

[0030] With such a design, when the connection disc 4 and the mounting disc 3 are buckled with each other, they can be inserted into each other through the insertion socket 12 and the filter screen frame 7 to complete the connection of the purification pipe 5 relative to the flue 2.

[0031] In this embodiment, a cleaning port 13 for flushing the filter screen 8 in the mounting disc 3 is also provided on one side surface of the connection disc 4. Drain outlets 14 for discharging cleaning water are provided at the lower ends of both the connection disc 4 and the mounting disc 3.

[0032] In this embodiment, a C-shaped clamp 15 is also fixedly connected to the outside of the mounting disc 3. An adjusting bolt 16 for clamping the mounting disc 3 and the connection disc 4 is threadedly connected to one side surface of the C-shaped clamp 15 away from the mounting disc 3.

[0033] In specific implementation, by rotating the adjusting bolt 16, the mounting disc 3 and the connection disc 4 can be buckled and connected to each other.

[0034] The working principle of the above embodiment is as follows:

[0035] When it is necessary to clean the filter screen 8 at the flue 2 of the vacuum furnace body 1, by rotating the adjusting bolt 16 to loosen the position of the connection disc 4, the connection disc 4 can be moved away from the mounting disc 3, and the insertion socket 12 can be pulled out from the filter screen frame 7. At this time, use tools to rotate the adjusting nut 11, and the adjusting nut 11 drives the rotating shaft 9 to rotate. One end of the rotating shaft 9 drives the fixedly connected filter screen support 6 to rotate, and the four filter screen frames 7 rotate synchronously with the filter screen support 6, so as to replace the filter screen 8 corresponding to the position of the flue 2 port. After the rotation adjustment is completed, the insertion socket 12 and the filter screen frame 7 corresponding to the position of the flue 2 are inserted into each other again. At this time, tighten the adjusting bolt 16 again to make the connection disc 4 and the mounting disc 3 buckle with each other, so as to realize the replacement of the filter screen 8. After rotation adjustment, the used filter screen 8 rotates to the position corresponding to the cleaning port 13, and the filter screen 8 can be directly flushed from the outside. The flushing water is discharged from the drain outlets 14 below the mounting disc 3 and the connection disc 4 and can be collected for secondary use.

[0036] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0037] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly exhaust device for a vacuum furnace, comprising a vacuum furnace body (1), a flue (2) located on the vacuum furnace body (1), and an exhaust structure connected to the flue (2), characterized in that: The end of the flue (2) is provided with a primary filtering structure; The primary filter structure comprises a mounting plate (3) flange-connected to the end of the flue (2) and a filter component rotatably mounted in the mounting plate (3); the filter component comprises four filter frames (7); a filter (8) for filtering the gas in the flue (2) is fixedly mounted in each of the four filter frames (7); and a filter bracket (6) is fixedly connected between the four filter frames (7).

2. The environmentally friendly exhaust device for a vacuum furnace according to claim 1, characterized in that: The exhaust structure comprises a connection plate (4) located at the end of the flue (2), and a purification pipe (5) located at one end of the connection plate (4) and connected to one side of the connection plate (4).

3. The environmentally friendly exhaust device for a vacuum furnace according to claim 1, characterized in that: A supporting shaft sleeve (10) is also suspended outside the flue (2), and a rotating shaft (9) fixedly connected to the filter bracket (6) is rotatably mounted inside the supporting shaft sleeve (10).

4. The environmentally friendly exhaust device for a vacuum furnace according to claim 3, characterized in that: An adjusting nut (11) is fixedly connected to one end of the rotating shaft (9), and the adjusting nut (11) has a hexagonal countersunk hole.

5. The environmentally friendly exhaust device for a vacuum furnace according to claim 2, characterized in that: A plug socket (12) corresponding to the inner diameter of the filter frame (7) is also fixedly mounted inside the connection disk (4); the plug socket (12) is plugged into the filter frame (7) and is connected to the purification pipe (5).

6. The environmentally friendly exhaust device for a vacuum furnace according to claim 2, characterized in that: A cleaning port (13) for flushing the filter screen (8) in the mounting plate (3) is also provided on one side of the connecting plate (4), and a water outlet (14) for discharging cleaning water is provided at the lower ends of the connecting plate (4) and the mounting plate (3).

7. The environmentally friendly exhaust device for a vacuum furnace according to claim 2, characterized in that: The outside of the mounting plate (3) is also fixedly connected to a C-shaped clamp (15), and a side surface of the C-shaped clamp (15) away from the mounting plate (3) is threadedly connected to an adjustment bolt (16) for clamping the mounting plate (3) and the connecting plate (4).

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