Casting factory building ventilation device with flue gas treatment function

Abstract

The utility model discloses a foundry plant ventilation device with a flue gas treatment function, and relates to the technical field of plant ventilation, the foundry plant ventilation device comprises a wall body, the front side of the wall body is clamped with a mounting rack, the front side of the mounting rack is provided with a ventilation opening, the inner side of the ventilation opening is provided with an exhaust fan, and the front side of the mounting rack is in threaded connection with a protection frame. And the protective frame covers the front side of the mounting rack. By the adoption of the structure, smoke dust in a plant can be sucked in by starting the exhaust fan, then the smoke dust is discharged to the outside of the wall through the ventilation opening, the first filter plate and the second filter plate can effectively block dust or pollutants in smoke gas while air circulation is not hindered, and the smoke dust in the plant can be effectively prevented from being blocked by the first filter plate and the second filter plate. Dust or pollutants in the air can be effectively filtered by additionally arranging the filtering holes, so that a good flue gas treatment effect can be achieved, the risk that harmful gas is discharged out of the wall body can be effectively reduced, and the pollution to the environment is effectively reduced.

Description

Technical Field

[0001] This utility model belongs to the field of factory ventilation technology, and specifically relates to a ventilation device for foundry buildings with flue gas treatment. Background Technology

[0002] Casting, as a crucial part of industrial production, generates significant amounts of fumes and VOCs during production, typically accounting for 3-5% of the casting weight. This fumes and VOCs pollution poses a serious threat to the physical and mental health of employees and pollutes the atmosphere in the working environment. In recent years, under the leadership of the China Foundry Association, the foundry industry has placed great emphasis on environmental protection and sustainable development. Starting with raw material selection and utilization, efforts are being made to reduce material usage and total pollutant generation through optimizing material ratios, selecting renewable raw and auxiliary materials, recycling waste materials, and applying high-efficiency energy-saving technologies. This ensures energy conservation and that the working environment meets national industrial hygiene and environmental emission standards, guaranteeing the health of workers. In the casting process, factory ventilation systems are particularly important.

[0003] Chinese Patent No. CN218062713U discloses a ventilation device for a foundry workshop, including a wall and a fan body. The wall has a longitudinally open mounting opening. Both sides of the mounting opening are fitted with longitudinally positioned fixing seats, the front of which extend beyond the front of the wall. The advantage of this invention is that it allows the fan body to be detachably and coaxially fixed to the mounting opening in the wall through a longitudinal sliding fit between the fitting seat and the fitting groove, and a horizontal sliding fit between the limiting rod and the limiting hole.

[0004] However, the above structure still has some shortcomings. When using the ventilation device, a large amount of smoke and dust will be generated during the casting operation. Some harmful substances will remain in the smoke and dust. During the ventilation process, these harmful substances will be discharged from the factory, which will cause some pollution to the outside air. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a ventilation device for foundry buildings with flue gas treatment, so as to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A ventilation device for a foundry workshop with flue gas treatment includes a wall. A mounting bracket is snapped onto the front side of the wall. A ventilation opening is formed on the front side of the mounting bracket. An exhaust fan is installed inside the ventilation opening. A protective frame is threaded onto the front side of the mounting bracket, covering the front side of the mounting bracket. Filter holes are formed on the outer wall of the protective frame, communicating with the inner side of the protective frame. A first filter plate and a second filter plate are fixedly connected to the inner wall of the protective frame. The position of the second filter plate corresponds to the position of the exhaust fan. A baffle is fixedly connected to the inner wall of the ventilation opening, and the position of the baffle corresponds to the position of the exhaust fan.

[0008] As a preferred technical solution, a fixing plate is fixedly connected to the outer wall of the protective frame. The bottom end of the fixing plate is attached to the top end of the mounting frame. A screw hole is opened at the top end of the fixing plate. The screw hole extends into the interior of the mounting frame. A bolt is threaded to the inner side of the screw hole. The bottom end of the bolt is threaded to the interior of the mounting frame through the screw hole. The protective frame is threaded to the front side of the mounting frame through the fixing plate, the screw hole, and the bolt.

[0009] As a preferred technical solution, a limiting block is fixedly connected to the outer wall of the mounting bracket. A first slot is provided on the front side of the limiting block, and the first slot extends into the interior of the wall. A second slot is provided on the inner wall of the first slot. A circular groove is provided on the inner side of the first slot. A first locking block is engaged with the inner side of the first slot. A second locking block that matches the second slot is fixedly connected to the outer side of the first locking block. The second locking block is engaged with the inner side of the circular groove.

[0010] As a preferred technical solution, a retaining spring that matches the second retaining block is installed on the inner side of the circular groove. The rear side of the second retaining block is engaged with the front side of the retaining spring. The second retaining block is engaged with the inner side of the circular groove through the retaining spring. A sealing block is fixedly connected to the front side of the first retaining block. The sealing block covers the front side of the first retaining groove. A protrusion is fixedly connected to the front side of the sealing block. The shape of the corner of the protrusion is arc-shaped.

[0011] As a preferred technical solution, a rubber pad is fixedly connected to the rear side of the sealing block. The rubber pad is five millimeters thick. The first locking block is located on the inner side close to the rubber pad. The rear side of the rubber pad is in contact with the front side of the limiting block.

[0012] As a preferred technical solution, a positioning block is fixedly connected to the rear side of the mounting bracket. The positioning block is fixedly connected to the four sides of the rear side of the mounting bracket near the corner. A positioning groove matching the positioning block is opened on the front side of the wall. The positioning block is engaged with the inside of the positioning groove.

[0013] As a preferred technical solution, a sealing ring is fixedly connected to the front side of the mounting bracket. The sealing ring is 5 mm thick, and the front side of the sealing ring is in contact with the rear side of the protective frame. A handle is fixedly connected to the front side of the mounting bracket, and the handle has an arc-shaped corner.

[0014] In summary, the present invention has the following main advantages:

[0015] First, when in use, starting the exhaust fan can draw in the smoke and dust in the factory and then discharge the smoke and dust to the outside of the wall through the ventilation opening. During the smoke and dust removal process, due to the presence of the first and second filter plates, they can effectively block the dust or pollutants in the smoke without hindering air circulation. The additional filter holes can also effectively filter the dust or pollutants in the air, thus achieving a good smoke and dust treatment effect. This can effectively reduce the risk of harmful gases being discharged to the outside of the wall, thereby effectively reducing the pollution to the environment.

[0016] Secondly, due to the presence of the first locking block, the second locking block can be inserted into the circular groove. By adjusting the second locking block to an angle that is not directly opposite to the second locking groove, the second locking block can be effectively engaged, effectively preventing displacement of the mounting frame structure. The engagement of the spring clip further enhances the stability of the engagement of the second locking block, thereby improving the stability of the mounting frame engagement. When the mounting frame needs to be disassembled later, the second locking block can be adjusted to an angle corresponding to the second locking groove, and then the first locking block can be directly pulled out. This facilitates the user's later disassembly and assembly of the mounting frame, and also makes it easier for the user to clean or maintain the mounting frame structure later. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the front structure of the mounting bracket of this utility model;

[0019] Figure 3 This is a schematic diagram of the rear structure of the mounting bracket of this utility model;

[0020] Figure 4 This is a schematic diagram of the front structure of the wall of this utility model;

[0021] Figure 5 This is a utility model Figure 4 A magnified structural diagram of part A;

[0022] Figure 6 This is a schematic diagram of the first card block structure of this utility model.

[0023] Reference numerals: 1. Wall; 2. Mounting bracket; 3. Ventilation opening; 4. Exhaust fan; 5. Baffle strip; 6. Sealing ring; 7. Protective frame; 8. First filter plate; 9. Second filter plate; 10. Filter hole; 11. Fixing plate; 12. Screw hole; 13. Bolt; 14. Handle; 15. Limiting block; 16. First slot; 17. Second slot; 18. Circular groove; 19. Snap ring; 20. First locking block; 21. Second locking block; 22. Sealing block; 23. Protrusion; 24. Rubber pad; 25. Positioning block; 26. Positioning groove. Detailed Implementation

[0024] Example

[0025] refer to Figures 1 to 6 This embodiment of a foundry ventilation device with flue gas treatment includes a wall 1. A mounting bracket 2 is snapped onto the front side of the wall 1. A ventilation opening 3 is provided on the front side of the mounting bracket 2. An exhaust fan 4 is installed inside the ventilation opening 3. A protective frame 7 is threaded onto the front side of the mounting bracket 2, covering the front side of the mounting bracket 2. Filter holes 10 are provided on the outer wall of the protective frame 7, communicating with the inner side of the protective frame 7. A first filter plate 8 and a second filter plate 9 are fixedly connected to the inner wall of the protective frame 7. The position of the second filter plate 9 corresponds to the position of the exhaust fan 4. A baffle 5 is fixedly connected to the inner wall of 3. The position of the baffle 5 corresponds to the position of the exhaust fan 4. When in use, the exhaust fan 4 can draw in the flue gas in the factory and discharge the smoke and dust to the outside through the ventilation port 3. During the smoke and dust removal, due to the presence of the first filter plate 8 and the second filter plate 9, the two can effectively block the dust or pollutants in the flue gas without hindering the airflow. The additional filter hole 10 can also effectively filter the dust or pollutants in the air, thereby achieving a good flue gas treatment effect and effectively reducing the risk of harmful gases being discharged to the outside of the wall 1.

[0026] refer to Figure 1 and Figure 2 A fixing plate 11 is fixedly connected to the outer wall of the protective frame 7. The bottom end of the fixing plate 11 is attached to the top end of the mounting frame 2. A screw hole 12 is opened at the top end of the fixing plate 11 and extends into the interior of the mounting frame 2. A bolt 13 is threadedly connected to the inner side of the screw hole 12. The bottom end of the bolt 13 is threadedly connected to the interior of the mounting frame 2 through the screw hole 12. The protective frame 7 is threadedly connected to the front side of the mounting frame 2 through the fixing plate 11, the screw hole 12 and the bolt 13. Due to the presence of the bolt 13, the screwing in of the bolt 13 can effectively limit the position of the fixing plate 11 to prevent the structure of the protective frame 7 from falling off. When it needs to be disassembled later, the bolt 13 can be unscrewed out of the screw hole 12. It also facilitates the user to maintain or clean the structure on the protective frame 7 later.

[0027] refer to Figures 1 to 6A limiting block 15 is fixedly connected to the outer wall of the mounting bracket 2. A first slot 16 is provided on the front side of the limiting block 15, extending into the interior of the wall 1. A second slot 17 is provided on the inner wall of the first slot 16. A circular groove 18 is provided on the inner side of the first slot 16. A first locking block 20 is engaged with the inner side of the first slot 16. A second locking block 21 matching the second slot 17 is fixedly connected to the outer side of the first locking block 20. The second locking block 21 is engaged with the inner side of the circular groove 18. A retaining spring 19 matching the second locking block 21 is installed on the inner side of the circular groove 18. The rear side of the second locking block 21 is engaged with the front side of the retaining spring 19. The second locking block 21 is engaged with the inner side of the circular groove 18 through the retaining spring 19. A sealing block 22 is fixedly connected to the front side of the first locking block 20, covering the front side of the first slot 16. The front side of 22 is fixedly connected with a protrusion 23. The protrusion 23 has an arc-shaped corner. Due to the presence of the first locking block 20, the second locking block 21 can be sent into the circular groove 18. The second locking block 21 is adjusted to a non-corresponding angle with the second locking groove 17, so that the second locking block 21 can be effectively locked. This can effectively prevent the structure of the mounting bracket 2 from shifting. The locking of the retaining spring 19 can further improve the stability of the locking of the second locking block 21, thereby improving the stability of the locking of the mounting bracket 2. When the mounting bracket 2 needs to be disassembled later, the second locking block 21 is adjusted to a corresponding angle with the second locking groove 17, and then the first locking block 20 can be pulled out directly. This can facilitate the user's disassembly and assembly of the mounting bracket 2 later, and also make it easier for the user to clean or maintain the structure of the mounting bracket 2 later.

[0028] refer to Figure 6 A rubber pad 24 is fixedly connected to the rear side of the sealing block 22. The rubber pad 24 is five millimeters thick. The first locking block 20 is located on the inner side close to the rubber pad 24. The rear side of the rubber pad 24 is in contact with the front side of the limiting block 15. Due to the presence of the rubber pad 24, which is made of rubber, it has good anti-slip ability and rubber elasticity. When the second locking block 21 is engaged, the first locking block 20 will press inward, which will squeeze the rubber pad 24. After the second locking block 21 is engaged, the rebound of the rubber pad 24 can make the second locking block 21 engage more tightly, which can further improve the stability of the second locking block 21 engagement.

[0029] refer to Figure 3 and Figure 4 A positioning block 25 is fixedly connected to the rear side of the mounting bracket 2. The positioning block 25 is fixedly connected to the four sides of the rear side of the mounting bracket 2 near the corner. The front side of the wall 1 is provided with a positioning groove 26 that matches the positioning block 25. The positioning block 25 is engaged in the inner side of the positioning groove 26. Due to the presence of the positioning block 25, the engagement of the positioning block 25 pre-limits the position of the mounting bracket 2, which further improves the engagement stability of the mounting bracket 2 and also effectively improves the engagement accuracy of the first locking block 20.

[0030] refer to Figure 2 A sealing ring 6 is fixedly connected to the front side of the mounting bracket 2. The sealing ring 6 is 5 mm thick. The front side of the sealing ring 6 is in contact with the rear side of the protective frame 7. A handle 14 is fixedly connected to the front side of the mounting bracket 2. The handle 14 has an arc-shaped corner. Due to the presence of the sealing ring 6, which is made of rubber, the connection point of the protective frame 7 can be effectively sealed to achieve a good dustproof sealing effect.

[0031] Operating principle and advantages: During use, the exhaust fan 4 can draw in the flue gas in the factory building, so that the smoke and dust can be discharged to the outside through the ventilation port 3. During the smoke extraction, due to the presence of the first filter plate 8 and the second filter plate 9, they can effectively block the dust or pollutants in the flue gas without hindering air circulation. The additional filter hole 10 can also effectively filter the dust or pollutants in the air, thus achieving a good flue gas treatment effect and effectively reducing the risk of harmful gases being discharged to the outside of the wall 1. Due to the presence of the bolt 13, the screwing in of the bolt 13 can effectively limit the position of the fixing plate 11 to prevent the structure of the protective frame 7 from falling off. When it is necessary to disassemble it later, the bolt 13 can be unscrewed from the screw hole 12. It also facilitates the user to maintain or clean the structure of the protective frame 7 later. Due to the presence of the first locking block 20, the second locking block 21 can be sent into the circular groove 18. The second locking block 21 can be adjusted to a non-corresponding angle with the second locking groove 17, thereby effectively locking the position of the second locking block 21, which can effectively prevent the structure of the mounting frame 2 from falling off. The displacement is improved by the snap ring 19, which further enhances the stability of the snap-fit ​​at the second snap block 21, thereby improving the stability of the snap-fit ​​at the mounting bracket 2. When the mounting bracket 2 needs to be disassembled later, the second snap block 21 is adjusted to the corresponding angle with the second snap slot 17, and then the first snap block 20 is pulled out directly. This facilitates the user's later disassembly and assembly of the mounting bracket 2, and also makes it easier for the user to clean or maintain the structure of the mounting bracket 2. Due to the presence of the rubber pad 24, which is a rubber product, it has good properties. With good anti-slip ability and rubber elasticity, when the second locking block 21 is engaged, the first locking block 20 will press inward, which will squeeze the rubber pad 24. After the second locking block 21 is engaged, the rebound of the rubber pad 24 can make the second locking block 21 engage more tightly, which can further improve the engagement stability of the second locking block 21. Due to the presence of the positioning block 25, the engagement of the positioning block 25 limits the position of the mounting bracket 2 in advance, which can further improve the engagement stability of the mounting bracket 2 and also effectively improve the engagement accuracy of the first locking block 20.

Claims

1. A ventilation system for a foundry building with flue gas treatment capabilities, comprising a wall (1), characterized in that: A mounting bracket (2) is snapped onto the front side of the wall (1). A ventilation opening (3) is provided on the front side of the mounting bracket (2). An exhaust fan (4) is installed on the inner side of the ventilation opening (3). A protective frame (7) is threaded onto the front side of the mounting bracket (2). The protective frame (7) covers the front side of the mounting bracket (2). A filter hole (10) is provided on the outer wall of the protective frame (7). The filter hole (10) communicates with the inner side of the protective frame (7). A first filter plate (8) and a second filter plate (9) are fixedly connected to the inner wall of the protective frame (7). The position of the second filter plate (9) corresponds to the position of the exhaust fan (4). A baffle (5) is fixedly connected to the inner wall of the ventilation opening (3). The position of the baffle (5) corresponds to the position of the exhaust fan (4).

2. A foundry ventilation device with flue gas treatment according to claim 1, characterized in that: A fixing plate (11) is fixedly connected to the outer wall of the protective frame (7). The bottom end of the fixing plate (11) is attached to the top end of the mounting frame (2). A screw hole (12) is provided at the top end of the fixing plate (11). The screw hole (12) extends into the interior of the mounting frame (2). A bolt (13) is threadedly connected to the inner side of the screw hole (12). The bottom end of the bolt (13) is threadedly connected to the interior of the mounting frame (2) through the screw hole (12). The protective frame (7) is threadedly connected to the front side of the mounting frame (2) through the fixing plate (11), the screw hole (12) and the bolt (13).

3. A foundry ventilation device with flue gas treatment according to claim 1, characterized in that: A limiting block (15) is fixedly connected to the outer wall of the mounting bracket (2). A first slot (16) is provided on the front side of the limiting block (15). The first slot (16) extends into the interior of the wall (1). A second slot (17) is provided on the inner wall of the first slot (16). A circular groove (18) is provided on the inner side of the first slot (16). A first locking block (20) is engaged on the inner side of the first slot (16). A second locking block (21) that matches the second slot (17) is fixedly connected to the outer side of the first locking block (20). The second locking block (21) is engaged on the inner side of the circular groove (18).

4. A foundry ventilation device with flue gas treatment according to claim 3, characterized in that: A retaining ring (19) matching the second retaining block (21) is installed on the inner side of the circular groove (18). The rear side of the second retaining block (21) is engaged with the front side of the retaining ring (19). The second retaining block (21) is engaged with the inner side of the circular groove (18) through the retaining ring (19). A sealing block (22) is fixedly connected to the front side of the first retaining block (20). The sealing block (22) covers the front side of the first retaining groove (16). A protrusion (23) is fixedly connected to the front side of the sealing block (22). The protrusion (23) has an arc-shaped corner.

5. A foundry ventilation device with flue gas treatment according to claim 4, characterized in that: A rubber pad (24) is fixedly connected to the rear side of the sealing block (22). The rubber pad (24) is five millimeters thick. The first locking block (20) is located on the inner side close to the rubber pad (24). The rear side of the rubber pad (24) is in contact with the front side of the limiting block (15).

6. A ventilation device for a foundry building with flue gas treatment according to claim 1, characterized in that: The mounting bracket (2) is fixedly connected to the rear side of a positioning block (25). The positioning block (25) is fixedly connected to the four sides of the rear side of the mounting bracket (2) near the corner. The front side of the wall (1) is provided with a positioning groove (26) that matches the positioning block (25). The positioning block (25) is engaged with the inside of the positioning groove (26).

7. A foundry ventilation device with flue gas treatment according to claim 1, characterized in that: A sealing ring (6) is fixedly connected to the front side of the mounting bracket (2). The sealing ring (6) is five millimeters thick. The front side of the sealing ring (6) is in contact with the rear side of the protective frame (7). A handle (14) is fixedly connected to the front side of the mounting bracket (2). The handle (14) has an arc-shaped corner.

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