Intelligent casting waste gas collecting device

Abstract

The utility model discloses an intelligent casting waste gas collecting device which comprises a portal frame, a waste gas collecting structure is arranged in the middle of the portal frame, the waste gas collecting structure comprises a dust collecting cover arranged in the middle of the portal frame, the top end of the dust collecting cover is fixedly connected with a filtering cover, and the bottom end of the filtering cover is fixedly connected with a cross-shaped supporting frame. A filter screen is fixedly connected to the top face of the cross-shaped supporting frame, a scraper is slidably connected to the surface of the filter screen, and a guide rod is slidably connected to the interior of the filter cover. According to the intelligent casting waste gas collecting device, the waste gas collecting structure is arranged, after gas is exhausted, the dust collecting cover is driven by the lifting guide structure to ascend, and the guide rod makes contact with the bottom face of the top end of the portal frame while ascending, so that the guide rod and the scraping plate stop ascending; at the moment, the filter screen continuously ascends to scrape metal scraps on the surface of the filter screen, so that the problem that the filtering effect is reduced due to accumulation of metal dust can be effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of casting equipment technology, and in particular to an intelligent collection device for casting waste gas. Background Technology

[0002] Foundry exhaust gas refers to the harmful gases and particulate matter generated during the casting process, including metal melting, sand mold, and reaction of mold materials. Common components of this exhaust gas include volatile organic compounds, metal vapor, carbon dioxide, carbon monoxide, nitrogen oxides, sulfur oxides, and fine particulate matter. These exhaust gases not only pollute the environment but may also endanger the health of workers and residents, thus requiring effective emission control and treatment.

[0003] For example, Chinese Patent Publication No. (CN210475524U) discloses a foundry waste gas collection device, which describes: "It includes two sets of symmetrically arranged support columns and an air suction hood installed between the two sets of support columns for absorbing waste gas. A support rod is fixedly welded to the top of each support column, and a support foot is threaded onto the bottom. A fixing ring is also fixedly fitted onto the support column above the support foot, and three sets of diagonal braces arranged in a circular array are welded to the outer circumference of the fixing ring. A caster wheel is installed at the bottom of the vertical end of each diagonal brace. An opening is opened on the side of the support rod facing the air suction hood, and a screw rod rotatably connected to both ends of the opening is inserted inside the opening. A motor that drives the screw rod to rotate is fixedly installed on the top of the support rod. This foundry waste gas collection device allows for the up, down, left, and right adjustment of the air suction hood for collecting and treating foundry waste gas, making it suitable for use with foundry equipment of different sizes, thus increasing its applicability."

[0004] In summary, the device also has the following technical problems: The device collects exhaust gas by controlling the height of the dust collection hood, but since the air carries a certain amount of metal dust and oxides during casting, the oxides will adhere to the surface of the filter screen in large quantities when being collected and filtered. Over time, this will cause the filter screen to become clogged. Therefore, it is necessary to propose an intelligent collection device for casting exhaust gas to provide a new technical solution to solve the technical problems mentioned in the above patent. Utility Model Content

[0005] Based on this, it is necessary to provide an intelligent collection device for foundry waste gas to address the above-mentioned technical problems. By setting up a waste gas collection structure, after the gas is discharged, the dust collection hood is driven to rise by the lifting guide structure. At the same time as rising, the guide rod contacts the bottom surface of the top of the gantry frame, thereby stopping the guide rod and scraper from rising. At this time, the filter screen continues to rise, which can scrape off the metal debris on the surface of the filter screen, thereby effectively avoiding the problem of reduced filtration effect due to the accumulation of metal dust.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] The intelligent collection device for casting waste gas specifically includes a gantry frame, and a waste gas collection structure is provided in the middle of the gantry frame;

[0008] The exhaust gas collection structure includes a dust collection hood located in the middle of the gantry frame. A filter hood is fixedly connected to the top of the dust collection hood, and a cross support frame is fixedly connected to the bottom of the filter hood. A filter screen is fixedly connected to the top surface of the cross support frame, and a scraper is slidably connected to the surface of the filter screen. A guide rod is slidably connected inside the filter hood, with the bottom end of the guide rod extending into the interior of the filter hood and fixedly connected to the scraper. A limit block is fixedly connected to the top of the guide rod, and a spring is sleeved on the surface of the guide rod.

[0009] In a preferred embodiment of the intelligent collection device for casting waste gas provided by this utility model, a guide pipe is connected to the top of the filter cover, a negative pressure suction pump is fixedly connected to the middle of the guide pipe, and a collection box is connected to the middle of the guide pipe.

[0010] In a preferred embodiment of the intelligent casting waste gas collection device provided by this utility model, a support bracket is fixedly connected to the surface of the dust collection hood, and the collection box and the negative pressure suction pump are respectively fixedly connected to the surface of the support bracket.

[0011] As a preferred embodiment of the intelligent collection device for casting waste gas provided by this utility model, a side gas collection hood is fixedly connected to the bottom surface of the dust collection hood, and a diversion pipe is connected to the surface of the side gas collection hood. The end of the diversion pipe away from the side gas collection hood is connected to the filter cover.

[0012] In a preferred embodiment of the intelligent collection device for casting waste gas provided by this utility model, a smooth rod is fixedly connected inside one side of the gantry frame, a threaded rod is rotatably connected inside one side of the gantry frame, a servo motor is fixedly connected to the top of the gantry frame, and the transmission end of the servo motor is rotatably connected to the threaded rod.

[0013] As a preferred embodiment of the intelligent collection device for casting waste gas provided by this utility model, two side guide blocks are fixedly connected to the surface of the dust collection hood, one of which is slidably connected to the surface of the smooth rod, and the other side guide block is threadedly connected to the threaded rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The intelligent collection device for foundry waste gas provided by this utility model, by setting up a waste gas collection structure, after the gas is discharged, the dust collection hood is driven to rise by the lifting guide structure. At the same time as rising, the guide rod contacts the bottom surface of the top of the gantry frame, thereby stopping the guide rod and scraper from rising. At this time, the filter screen continues to rise, which can scrape off the metal debris on the surface of the filter screen, thereby effectively avoiding the problem of reduced filtration effect due to the accumulation of metal dust.

[0016] The intelligent collection device for casting exhaust gas provided by this utility model, by setting up side gas collection hoods and diversion pipes, can effectively prevent gas from flowing out from the middle of the dust collection hood and the casting furnace. This is because the temperature of the casting furnace itself is high during the casting process, and the dust collection hood is difficult to keep in close contact with it for a long time to collect the gas in the middle. Attached Figure Description

[0017] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of the intelligent collection device for foundry waste gas provided by this utility model;

[0019] Figure 2 A schematic diagram of the side view of the intelligent collection device for casting waste gas provided by this utility model;

[0020] Figure 3 The intelligent collection device for foundry waste gas provided by this utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0021] Figure 4 A schematic diagram of the internal structure of the intelligent waste gas collection device for casting waste gas provided by this utility model.

[0022] Figure 5 The intelligent collection device for foundry waste gas provided by this utility model Figure 4 A schematic diagram of the cross-sectional structure at point A in the middle.

[0023] The markings in the diagram are explained as follows:

[0024] 1. Gantry frame; 2. Exhaust gas collection structure; 3. Lifting guide structure; 4. Dust collection hood; 5. Filter hood; 6. Cross support frame; 7. Filter screen; 8. Scraper; 9. Guide rod; 10. Limiting top block; 11. Spring; 12. Guide pipe; 13. Bearing bracket; 14. Collection box; 15. Negative pressure suction pump; 16. Side air collection hood; 17. Diverter pipe; 18. Side guide block; 19. Smooth rod; 20. Threaded rod; 21. Servo motor. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0026] As described in the background art, the above-mentioned device collects exhaust gas by controlling the height of the dust collection hood. However, since the air carries a certain amount of metal fumes and oxides during casting, the oxides will adhere to the surface of the filter screen in large quantities when the filter is collected and filtered. Over time, this will cause the filter screen to become clogged.

[0027] To solve this technical problem, this utility model provides an intelligent collection device for foundry waste gas.

[0028] For details, please refer to Figures 1-3 The intelligent collection device for casting waste gas specifically includes a gantry frame 1, and a waste gas collection structure 2 is provided in the middle of the gantry frame 1.

[0029] The exhaust gas collection structure 2 includes a dust collection hood 4 located in the middle of the gantry frame 1. A filter hood 5 is fixedly connected to the top of the dust collection hood 4. A cross support frame 6 is fixedly connected to the bottom of the filter hood 5. A filter screen 7 is fixedly connected to the top surface of the cross support frame 6. A scraper 8 is slidably connected to the surface of the filter screen 7. A guide rod 9 is slidably connected inside the filter hood 5. The bottom end of the guide rod 9 extends into the interior of the filter hood 5 and is fixedly connected to the scraper 8. A limit block 10 is fixedly connected to the top of the guide rod 9. A spring 11 is sleeved on the surface of the guide rod 9.

[0030] The intelligent collection device for casting waste gas provided by this utility model, by setting up a waste gas collection structure 2, after the gas is discharged, the dust collection hood 4 is driven to rise by the lifting guide structure 3. At the same time as rising, the guide rod 9 contacts the bottom surface of the top of the gantry frame 1, thereby stopping the guide rod 9 and the scraper 8 from rising. At this time, the filter screen 7 continues to rise, which can scrape off the metal debris on the surface of the filter screen 7, thereby effectively avoiding the problem of reduced filtration effect due to the accumulation of metal dust.

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0032] Example 1:

[0033] Please refer to Figures 3-5 A smart collection device for foundry waste gas includes a gantry frame 1, and a waste gas collection structure 2 is provided in the middle of the gantry frame 1.

[0034] The exhaust gas collection structure 2 includes a dust collection hood 4 located in the middle of the gantry frame 1. A filter hood 5 is fixedly connected to the top of the dust collection hood 4. A cross support frame 6 is fixedly connected to the bottom of the filter hood 5. A filter screen 7 is fixedly connected to the top surface of the cross support frame 6. A scraper 8 is slidably connected to the surface of the filter screen 7. A guide rod 9 is slidably connected inside the filter hood 5. The bottom end of the guide rod 9 extends into the interior of the filter hood 5 and is fixedly connected to the scraper 8. A limit block 10 is fixedly connected to the top of the guide rod 9. A spring 11 is sleeved on the surface of the guide rod 9.

[0035] Specifically, a guide pipe 12 is connected to the top of the filter cover 5, a negative pressure suction pump 15 is fixedly connected to the middle of the guide pipe 12, and a collection box 14 is connected to the middle of the guide pipe 12.

[0036] Specifically, a support bracket 13 is fixedly connected to the surface of the dust collection hood 4, and the collection box 14 and the negative pressure suction pump 15 are respectively fixedly connected to the surface of the support bracket 13.

[0037] Specifically, a light rod 19 is fixedly connected inside one side of the gantry frame 1, a threaded rod 20 is rotatably connected inside one side of the gantry frame 1, and a servo motor 21 is fixedly connected to the top of the gantry frame 1. The transmission end of the servo motor 21 is rotatably connected to the threaded rod 20.

[0038] Specifically, the surface of the dust collection hood 4 is fixedly connected to two side guide blocks 18, one of which is slidably connected to the surface of the light rod 19, and the other side guide block 18 is threadedly connected to the threaded rod 20.

[0039] With the above structural design, when using the device, the gantry frame 1 carrying the dust collection hood 4 is first erected above the casting furnace. The servo motor 21 is turned on to drive the threaded rod 20 to rotate, causing the dust collection hood 4 to slide downwards on the surface of the smooth rod 19. After the dust collection hood 4 moves to a suitable position above the casting furnace, the negative pressure suction pump 15 is turned on. After the negative pressure suction pump 15 is turned on, the metal fumes and harmful gases generated during casting are transported to the collection box 14 through the dust collection hood 4 and the filter hood 5 in conjunction with the guide pipe 12 for collection. The filtration through the filter screen 7 can effectively reduce the amount of dust in the air. After casting, the servo motor 21 is turned on, and the servo motor 21 drives the threaded rod 20 to raise the dust collection hood 4. After the dust collection hood 4 rises to the top of the gantry frame 1, the top of the guide rod 9 contacts the bottom surface of the top of the gantry frame 1. At this time, the guide rod 9 stops rising, while the dust collection hood 4 drives the filter hood 5 to continue to rise. At this time, the scraper 8 can scrape off the metal debris on the surface of the filter screen 7. After completion, the servo motor 21 is controlled to drive the threaded rod 20 to reverse and control the dust collection hood 4 to descend. At this time, the spring 11 pushes the guide rod 9 through the limit block 10 to drive the scraper 8 to reset.

[0040] Example 2:

[0041] The intelligent collection device for casting waste gas provided in Example 1 has been further optimized, specifically, as follows: Figure 4 The bottom surface of the dust collection hood 4 shown is fixedly connected to a side air collection hood 16. A diversion pipe 17 is connected to the surface of the side air collection hood 16. The end of the diversion pipe 17 away from the side air collection hood 16 is connected to the filter hood 5.

[0042] With the above structural design, when the casting furnace is working, the negative pressure suction pump 15 is turned on. Since the diversion pipe 17 connects the side gas collection hood 16 and the filter hood 5, a certain suction force will also be generated inside the side gas collection hood 16 after the negative pressure suction pump 15 is turned on. After the negative pressure suction pump 15 is turned on, the metal fumes flowing out of the gap in the middle of the casting furnace and dust collection hood 4 can be transported to the inside of the filter hood 5 and filtered.

Claims

1. A smart collection device for foundry waste gas, characterized in that; Includes a gantry frame (1), and a waste gas collection structure (2) is provided in the middle of the gantry frame (1); The exhaust gas collection structure (2) includes a dust collection hood (4) located in the middle of the gantry frame (1). A filter hood (5) is fixedly connected to the top of the dust collection hood (4). A cross support frame (6) is fixedly connected to the bottom of the filter hood (5). A filter screen (7) is fixedly connected to the top surface of the cross support frame (6). A scraper (8) is slidably connected to the surface of the filter screen (7). A guide rod (9) is slidably connected inside the filter hood (5). The bottom end of the guide rod (9) extends into the interior of the filter hood (5) and is fixedly connected to the scraper (8). A limit block (10) is fixedly connected to the top of the guide rod (9). A spring (11) is sleeved on the surface of the guide rod (9).

2. The intelligent collection device for foundry waste gas according to claim 1, characterized in that, The top of the filter cover (5) is connected to a guide pipe (12), the middle of the guide pipe (12) is fixedly connected to a negative pressure suction pump (15), and the middle of the guide pipe (12) is connected to a collection box (14).

3. The intelligent collection device for foundry waste gas according to claim 2, characterized in that, The surface of the dust collection hood (4) is fixedly connected to a support bracket (13), and the collection box (14) and the negative pressure suction pump (15) are respectively fixedly connected to the surface of the support bracket (13).

4. The intelligent collection device for foundry waste gas according to claim 3, characterized in that, The bottom surface of the dust collection hood (4) is fixedly connected to a side air collection hood (16), and a diversion pipe (17) is provided on the surface of the side air collection hood (16). The end of the diversion pipe (17) away from the side air collection hood (16) is connected to the filter hood (5).

5. The intelligent collection device for foundry waste gas according to claim 4, characterized in that, A light rod (19) is fixedly connected inside one side of the gantry frame (1), and a threaded rod (20) is rotatably connected inside one side of the gantry frame (1). A servo motor (21) is fixedly connected to the top of the gantry frame (1), and the transmission end of the servo motor (21) is rotatably connected to the threaded rod (20).

6. The intelligent collection device for foundry waste gas according to claim 5, characterized in that, Two side guide blocks (18) are fixedly connected to the surface of the dust collection hood (4). One of the side guide blocks (18) is slidably connected to the surface of the light rod (19), and the other side guide block (18) is threadedly connected to the threaded rod (20).

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