Exhaust device for a vacuum tempering furnace

Abstract

The application relates to an exhaust device for a vacuum tempering furnace and relates to the field of vacuum tempering furnaces. The device comprises a tempering furnace body, the upper end surface of the tempering furnace body is provided with a filtering barrel and an air extraction mechanism, the filtering barrel and the air extraction mechanism are fixedly connected with the tempering furnace body, the air extraction mechanism is communicated with the inside of the tempering furnace body through the filtering barrel, a primary filter screen and an oil fume filter screen are arranged in the filtering barrel, the oil fume filter screen is arranged above the primary filter screen, and the oil fume filter screen and the primary filter screen are detachably fixedly connected with the filtering barrel. The multistage filtering structure of the primary filter screen and the oil fume filter screen can effectively remove dust and oil fume impurities in waste gas, greatly improves the filtering effect of the waste gas, and reduces the pollution to the environment and the influence on the air quality of the workshop. By arranging cleaning piece one, cleaning piece two and a driving piece, the filter screen can be automatically cleaned, and the trouble of frequently disassembling and cleaning the filter screen manually is avoided.

Description

Technical Field

[0001] This application relates to the technical field of vacuum tempering furnaces, and in particular to an exhaust device for a vacuum tempering furnace. Background Technology

[0002] Vacuum tempering furnaces are common equipment in the field of metal workpiece processing. They can be used for tempering general metal parts in air, as well as for quenching, annealing, and heat treatment of light alloy parts such as aluminum alloy die castings, pistons, and aluminum plates.

[0003] During the use of a vacuum tempering furnace, it is necessary to exhaust the gas inside the furnace. Most existing vacuum tempering furnaces only have exhaust pipes to exhaust the gas. The gas containing oil fumes is discharged directly without treatment, which can easily cause environmental pollution.

[0004] Improving the exhaust system of a vacuum tempering furnace to purify the oil fumes in the gas is a technical problem that needs to be solved. Utility Model Content

[0005] In order to ensure effective treatment of exhaust gas from a vacuum tempering furnace, this application provides an exhaust device for a vacuum tempering furnace.

[0006] The exhaust device for a vacuum tempering furnace provided in this application adopts the following technical solution:

[0007] An exhaust device for a vacuum tempering furnace includes a tempering furnace body. A filter barrel and an exhaust mechanism are installed on the upper surface of the tempering furnace body. Both the filter barrel and the exhaust mechanism are fixedly connected to the tempering furnace body, and the exhaust mechanism is connected to the interior of the tempering furnace body through the filter barrel. A primary filter and an oil fume filter are installed in the filter barrel. The oil fume filter is positioned above the primary filter, and both the oil fume filter and the primary filter are detachably and fixedly connected to the filter barrel. A cleaning component one and a cleaning component two for cleaning the primary filter and the oil fume filter are installed in the filter barrel, and a driving component for driving the rotation of the cleaning component one and the cleaning component two is also fixedly installed on the filter barrel.

[0008] By adopting the above technical solution, and by installing a filter barrel and an exhaust mechanism on the main body of the tempering furnace, with the exhaust mechanism connected to the interior of the furnace through the filter barrel, the exhaust gas generated during the tempering process can be extracted and filtered. This effectively reduces the emission of dust, oil fumes, and other impurities into the atmosphere, protecting the environment and workshop air quality. Simultaneously, the filter barrel contains a primary filter and an oil fume filter, enabling multi-stage filtration and improving the filtration effect. The inclusion of cleaning components one and two, along with the drive mechanism, allows for automatic cleaning of the primary and oil fume filters, preventing filter clogging, ensuring filtration efficiency, reducing manual cleaning workload, and improving equipment operating efficiency and service life.

[0009] Optionally, the filter barrel includes a barrel shell and a cover, the cover being installed on the upper end face of the barrel shell and being sealed and fixedly connected to the barrel shell.

[0010] By adopting the above technical solution, the filter canister is designed as a structure of a canister shell and a cover, with the cover and the canister shell being sealed and fixedly connected. On the one hand, this facilitates the installation and maintenance of components such as the filter screen inside the filter canister. On the other hand, the sealed connection can prevent exhaust gas leakage, ensure the airtightness of the filtration process, and improve the filtration effect.

[0011] Optionally, the cover includes a sealing plate and an exhaust pipe, the exhaust pipe being installed on the upper end face of the sealing plate and integrally formed with the sealing plate.

[0012] By adopting the above technical solution, the cover adopts a design that integrates the sealing plate and the exhaust pipe. The structure is simple and the connection is tight, which can effectively guide the filtered exhaust gas out, reduce the leakage and accumulation of exhaust gas at the cover, and ensure the smoothness of exhaust.

[0013] Optionally, the primary filter screen includes an outer frame and a filter screen plate, the filter screen plate being fixedly installed in the outer frame, and a connection hole being provided at the center of the filter screen plate.

[0014] By adopting the above technical solution, the structural design of the outer frame and filter plate of the primary filter screen ensures that the filter plate can be firmly installed in the outer frame, guaranteeing the stability of the filter screen. The connecting hole at the center of the filter plate facilitates the installation and rotation of the cleaning component, making it easy for the cleaning component to clean the filter plate.

[0015] Optionally, the fume filter screen includes a top ring plate, a ring mesh cover, and a bottom plate. The top ring plate and the bottom plate are respectively installed at the upper and lower ends of the ring mesh cover, and both the top ring plate and the bottom plate are fixedly connected to the ring mesh cover.

[0016] By adopting the above technical solution, the fume filter screen uses a structure of a top ring plate, a ring mesh cover, and a base plate, which can form a relatively closed filtration space, effectively intercepting oil fume particles in the exhaust gas. Furthermore, the ring mesh cover adopts a platform structure with a larger upper end and a smaller lower end, ensuring an effective increase in the contact area between the oil fume and the ring mesh cover, thereby effectively enhancing the filtration effect. The top ring plate and the base plate are fixedly connected to the ring mesh cover, ensuring the overall structural strength of the fume filter screen and improving the reliability of filtration.

[0017] Optionally, the cleaning component includes a horizontal scraper and a sleeve, the sleeve being installed at one end of the horizontal scraper, and the sleeve and the horizontal scraper being integrally formed.

[0018] By adopting the above technical solution, the horizontal scraper and sleeve of the cleaning component are integrally molded, resulting in a simple structure and high strength. The sleeve is easy to install on the vertical shaft, and when the vertical shaft rotates, the horizontal scraper can rotate accordingly to scrape and clean the primary filter screen, effectively removing dust and other impurities from the filter screen.

[0019] Optionally, the second cleaning component includes a bending plate, an inclined scraper, and a bushing. The lower end face of the inclined scraper is provided with a plurality of sliding rods that slide in cooperation with the bending plate. A rubber pressure ring is sleeved on the sliding rod. The bushing is integrally formed and disposed at the lower end of the bending plate.

[0020] By adopting the above technical solution, the structural design of the bending plate, inclined scraper, and bushing of the second cleaning component allows the inclined scraper to slide and engage with the bending plate via a sliding rod, and is fitted with a rubber pressure ring. This enables the inclined scraper to flexibly adjust its position within a certain range, better conforming to the surface of the fume filter for cleaning. The bushing is integrally formed and located at the lower end of the bending plate, facilitating installation on the vertical shaft to achieve cleaning of the fume filter.

[0021] Optionally, the driving component includes an external motor and a vertical shaft for mounting the sleeve and bushing. The external motor is fixedly mounted at the center of the upper end face of the sealing plate, and the head of the vertical shaft is connected to the output end of the external motor.

[0022] By adopting the above technical solution, the driving component adopts an external motor and a vertical shaft structure. The external motor is fixedly installed at the center of the upper surface of the sealing plate, and the head of the vertical shaft is connected to the output end of the motor. It can stably drive the first and second cleaning components to rotate, providing power for cleaning the filter screen and ensuring the normal operation of the cleaning work.

[0023] In summary, this application includes at least one of the following beneficial technical effects: This application employs a multi-stage filtration structure consisting of a primary filter and an oil fume filter, which effectively removes dust and oil fumes from exhaust gas, significantly improving the filtration effect and reducing environmental pollution and impact on workshop air quality. By incorporating cleaning components one, two, and a drive mechanism, the filter screens can be automatically cleaned, avoiding the hassle of frequent manual disassembly and cleaning, reducing the labor intensity of operators, and ensuring the normal operating efficiency of the equipment. It effectively filters impurities in the exhaust gas, reducing damage to the extraction mechanism and other equipment, and lowering atmospheric pollution. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application.

[0025] Figure 2 yes Figure 1 The diagram shows the structure of the device without the tempering furnace body and the exhaust mechanism installed.

[0026] Figure 3 yes Figure 2 The diagram shows the structure of the device without the filter cartridge installed.

[0027] Figure 4 This is a perspective view of the cleaning component two in the embodiments of this application.

[0028] Figure 5 yes Figure 4 Front view of the device.

[0029] Figure 6 This is a perspective view of the primary filter in the embodiments of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Tempering furnace body; 10. Exhaust mechanism; 2. Filter barrel; 21. Barrel shell; 22. Cover; 221. Sealing plate; 222. Exhaust pipe; 3. Primary filter screen; 31. Outer frame; 32. Filter screen plate; 321. Connecting hole; 4. Oil fume filter screen; 41. Top ring plate; 42. Ring mesh cover; 43. Base plate; 5. Cleaning component one; 51. Horizontal scraper; 52. Sleeve; 6. Cleaning component two; 61. Bending plate; 62. Slanted scraper; 621. Slide rod; 622. Rubber pressure ring; 63. Bushing; 7. Drive component; 71. External motor; 72. Vertical shaft. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] This application discloses an exhaust device for a vacuum tempering furnace. (Refer to...) Figure 1 , Figure 2 and Figure 3As shown, an exhaust device for a vacuum tempering furnace includes a tempering furnace body 1. A filter barrel 2 and an exhaust mechanism 10 are installed on the upper end face of the tempering furnace body 1. Both the filter barrel 2 and the exhaust mechanism 10 are fixedly connected to the tempering furnace body 1, and the exhaust mechanism 10 is connected to the interior of the tempering furnace body 1 through the filter barrel 2. A primary filter screen 3 and an oil fume filter screen 4 are installed in the filter barrel 2. The oil fume filter screen 4 is located above the primary filter screen 3, and both the oil fume filter screen 4 and the primary filter screen 3 are detachably and fixedly connected to the filter barrel 2. A first cleaning component 5 and a second cleaning component 6 for cleaning the primary filter screen 3 and the oil fume filter screen 4 are installed in the filter barrel 2, and a driving component 7 for driving the first cleaning component 5 and the second cleaning component 6 to rotate is also fixedly installed on the filter barrel 2. By installing a filter barrel 2 and an exhaust mechanism 10 on the tempering furnace body 1, with the exhaust mechanism 10 connected to the interior of the tempering furnace body 1 via the filter barrel 2, the exhaust gas generated during the tempering process can be extracted and filtered, effectively reducing the emission of dust, oil fumes, and other impurities into the atmosphere, protecting the environment and workshop air quality. Simultaneously, a primary filter 3 and an oil fume filter 4 are installed in the filter barrel 2, enabling multi-stage filtration and improving the filtration effect. The inclusion of cleaning components 5 and 6, along with the drive component 7, allows for automatic cleaning of the primary filter 3 and oil fume filter 4, preventing filter clogging, ensuring filtration efficiency, reducing manual cleaning workload, and improving equipment operating efficiency and service life. The filter plate 32 of the primary filter 3 can be made of stainless steel, which is corrosion-resistant and high-strength. The mesh size can be selected according to actual needs, generally 100-200 mesh. The outer frame 31 can be made of aluminum alloy, which is lightweight and has moderate strength. The ring cover 42 of the oil fume filter 4 can be made of copper, which has good thermal conductivity and corrosion resistance, and can better adsorb oil fume particles. The top ring plate 41 and the bottom plate 43 can be made of stainless steel to ensure structural stability. The suction mechanism 10 can be a rotary vane vacuum pump of model 2XZ-4, which has the characteristics of fast suction speed and high vacuum degree, and can meet the exhaust requirements of the vacuum tempering furnace.

[0033] Reference Figure 2 and Figure 3As shown, the filter canister 2 includes a shell 21 and a cover 22. The cover 22 is installed on the upper surface of the shell 21 and is sealed and fixedly connected to the shell 21. Designing the filter canister 2 with a shell 21 and a cover 22, and ensuring a sealed and fixed connection between the cover 22 and the shell 21, facilitates the installation and maintenance of internal components such as the filter screen. Furthermore, the sealed connection prevents exhaust gas leakage, ensures the airtightness of the filtration process, and improves the filtration effect. The cover 22 includes a sealing plate 221 and an exhaust pipe 222. The exhaust pipe 222 is installed on the upper surface of the sealing plate 221 and is integrally formed with the sealing plate 221. The design of the cover 22, with the sealing plate 221 and exhaust pipe 222 integrally formed, is simple in structure and tightly connected. This effectively guides the filtered exhaust gas out, reduces leakage and accumulation of exhaust gas at the cover 22, and ensures smooth exhaust.

[0034] Reference Figure 6 As shown, the primary filter 3 includes an outer frame 31 and a filter plate 32. The filter plate 32 is fixedly installed in the outer frame 31, and a connecting hole 321 is provided at the center of the filter plate 32. The structural design of the outer frame 31 and the filter plate 32 of the primary filter 3 ensures that the filter plate 32 can be firmly installed in the outer frame 31, guaranteeing the stability of the filter. The connecting hole 321 at the center of the filter plate 32 facilitates the installation and rotation of the cleaning component 5, making it convenient for the cleaning component 5 to clean the filter plate 32.

[0035] Reference Figure 2 and Figure 3 As shown, the fume filter 4 includes a top ring plate 41, a ring mesh cover 42, and a base plate 43. The top ring plate 41 and the base plate 43 are respectively installed at the upper and lower ends of the ring mesh cover 42, and both the top ring plate 41 and the base plate 43 are fixedly connected to the ring mesh cover 42. The fume filter 4, with its structure of top ring plate 41, ring mesh cover 42, and base plate 43, can form a relatively closed filtration space, effectively intercepting oil fume particles in the exhaust gas. Furthermore, the ring mesh cover 42 adopts a platform structure with a larger upper end and a smaller lower end, ensuring an effective increase in the contact area between the oil fume and the ring mesh cover 42, thereby effectively increasing the filtration effect. The fixed connection between the top ring plate 41 and the base plate 43 and the ring mesh cover 42 ensures the overall structural strength of the fume filter 4 and improves the reliability of filtration.

[0036] Reference Figure 2 and Figure 3 As shown, the cleaning component 5 includes a horizontal scraper 51 and a sleeve 52. The sleeve 52 is installed at one end of the horizontal scraper 51, and the sleeve 52 and the horizontal scraper 51 are integrally formed. The integrally formed design of the horizontal scraper 51 and the sleeve 52 of the cleaning component 5 results in a simple structure and high strength. The sleeve 52 is easy to install on the vertical shaft 72. When the vertical shaft 72 rotates, the horizontal scraper 51 can rotate accordingly to scrape and clean the primary filter screen 3, effectively removing dust and other impurities from the filter screen.

[0037] Reference Figure 4 and Figure 5 As shown, the second cleaning component 6 includes a bent plate 61, an inclined scraper 62, and a bushing 63. The lower end face of the inclined scraper 62 is provided with several sliding rods 621 that slide in conjunction with the bent plate 61. Rubber pressure rings 622 are fitted onto the sliding rods 621. The bushing 63 is integrally formed and located at the lower end of the bent plate 61. The structural design of the bent plate 61, inclined scraper 62, and bushing 63 in the second cleaning component 6 allows the inclined scraper 62 to slide in conjunction with the bent plate 61 via the sliding rods 621 and to be fitted with rubber pressure rings 622. This allows the inclined scraper 62 to flexibly adjust its position within a certain range, better conforming to the surface of the fume filter 4 for cleaning. The bushing 63 is integrally formed and located at the lower end of the bent plate 61, facilitating installation on the vertical shaft 72 to achieve cleaning of the fume filter 4.

[0038] Reference Figure 2 and Figure 3 As shown, the drive unit 7 includes an external motor 71 and a vertical shaft 72 for mounting the sleeve 52 and bushing 63. The external motor 71 is fixedly mounted at the center of the upper end face of the sealing plate 221, and the head of the vertical shaft 72 is connected to the output end of the external motor 71. The drive unit 7, with its external motor 71 and vertical shaft 72, can stably drive the cleaning components 5 and 6 to rotate, providing power for cleaning the filter screen and ensuring the normal operation of the cleaning process.

[0039] The implementation principle of an exhaust device for a vacuum tempering furnace according to an embodiment of this application is as follows: When the vacuum tempering furnace is working, the extraction mechanism 10 is activated, drawing the exhaust gas generated inside the furnace body 1 into the filter barrel 2 through a pipe. The exhaust gas first passes through the primary filter screen 3, where the filter plate 32 intercepts larger dust particles. Then, the exhaust gas continues to rise and passes through the oil fume filter screen 4, where the ring mesh cover 42 intercepts oil fume particles. After two stages of filtration, the relatively clean exhaust gas is discharged through the exhaust pipe 222. During the filtration process, the external motor 71 is periodically activated, driving the vertical shaft 72 to rotate, which in turn drives the cleaning components 5 and 6 to rotate. The horizontal scraper 51 of the cleaning component 5 scrapes the filter plate 32 of the primary filter screen 3, removing dust from the filter screen. The inclined scraper 62 of the cleaning component 6 scrapes the ring mesh cover 42 of the oil fume filter screen 4, removing oil fume particles, thereby achieving automatic cleaning of the filter screen.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An exhaust device for a vacuum tempering furnace, comprising a tempering furnace body (1), characterized in that: The upper end face of the tempering furnace body (1) is equipped with a filter barrel (2) and an exhaust mechanism (10). The filter barrel (2) and the exhaust mechanism (10) are both fixedly connected to the tempering furnace body (1), and the exhaust mechanism (10) is connected to the interior of the tempering furnace body (1) through the filter barrel (2). The filter barrel (2) is equipped with a primary filter screen (3) and an oil fume filter screen (4). The oil fume filter screen (4) is located above the primary filter screen (3), and the oil fume filter screen (4) and the primary filter screen (3) are detachably and fixedly connected to the filter barrel (2). The filter barrel (2) is equipped with a cleaning component one (5) and a cleaning component two (6) for cleaning the primary filter screen (3) and the oil fume filter screen (4), and a driving component (7) for driving the cleaning component one (5) and the cleaning component two (6) to rotate is also fixedly installed on the filter barrel (2).

2. The exhaust device for a vacuum tempering furnace according to claim 1, characterized in that: The filter bucket (2) includes a bucket shell (21) and a cover (22). The cover (22) is installed on the upper end face of the bucket shell (21) and the cover (22) is sealed and fixedly connected to the bucket shell (21).

3. The exhaust device for a vacuum tempering furnace according to claim 2, characterized in that: The cover (22) includes a sealing plate (221) and an exhaust pipe (222). The exhaust pipe (222) is installed on the upper end face of the sealing plate (221) and the exhaust pipe (222) is integrally formed with the sealing plate (221).

4. The exhaust device for a vacuum tempering furnace according to claim 3, characterized in that: The primary filter (3) includes an outer frame (31) and a filter plate (32). The filter plate (32) is fixedly installed in the outer frame (31), and a connection hole (321) is provided at the center of the filter plate (32).

5. The exhaust device for a vacuum tempering furnace according to claim 4, characterized in that: The oil fume filter (4) includes a top ring plate (41), a ring mesh cover (42) and a base plate (43). The top ring plate (41) and the base plate (43) are respectively installed at the upper and lower ends of the ring mesh cover (42), and the top ring plate (41) and the base plate (43) are fixedly connected to the ring mesh cover (42).

6. The exhaust device for a vacuum tempering furnace according to claim 5, characterized in that: The cleaning component (5) includes a horizontal scraper (51) and a sleeve (52), the sleeve (52) being installed at one end of the horizontal scraper (51), and the sleeve (52) and the horizontal scraper (51) being integrally formed.

7. An exhaust device for a vacuum tempering furnace according to claim 6, characterized in that: The second cleaning component (6) includes a bending plate (61), an inclined scraper (62) and a bushing (63). The lower end face of the inclined scraper (62) is provided with a plurality of sliding rods (621) that slide in cooperation with the bending plate (61). A rubber pressure ring (622) is sleeved on the sliding rod (621). The bushing (63) is integrally formed and disposed at the lower end of the bending plate (61).

8. The exhaust device for a vacuum tempering furnace according to claim 7, characterized in that: The drive unit (7) includes an external motor (71) and a vertical shaft (72) for mounting the sleeve (52) and bushing (63). The external motor (71) is fixedly mounted at the center of the upper end face of the sealing plate (221), and the head of the vertical shaft (72) is connected to the output end of the external motor (71).

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