Smoke exhaust system of melting furnace
By designing a structure that includes a connecting box, filter screen, mounting plate, limit rod, moving plate, positioning rod, rotating sleeve, and fan body, the problems of inconvenient filter screen cleaning and difficult fan maintenance in the flue gas system of melting furnace are solved. This enables quick disassembly of the filter screen and convenient disassembly of the fan, thereby improving work efficiency.
Patent Information
- Application Number
- CN202520072488.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-01-13
AI Technical Summary
The existing flue gas system for melting furnaces is inconvenient to clean the filter screen and difficult to maintain the fan, which reduces the work efficiency of the staff.
A structure including a connecting box, filter screen, mounting plate, limit rod, moving plate, positioning rod, rotating sleeve and fan body is designed. Through the coordinated operation of push rod, handle and rotating sleeve, the filter screen can be quickly disassembled and the fan can be easily disassembled.
It enables quick cleaning of the filter and convenient maintenance of the fan, improving the work efficiency of the staff.
Smart Images

Figure CN223976482U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of melting furnace technology, and in particular to a melting furnace exhaust system. Background Technology
[0002] A melting furnace is an industrial furnace mainly used to melt metal or non-metal materials into liquid. It can also be used to adjust the composition of the melt and remove impurities. A melting furnace exhaust system is a device system used in industrial environments to treat and discharge the fumes generated during the melting process.
[0003] The existing equipment is cumbersome to clean the filter screen. When the workers need to clean the filter screen, they need to disassemble the connection box to clean it. It is also inconvenient to disassemble and maintain the fan, which reduces the work efficiency of the workers. Therefore, we propose a furnace exhaust system to solve this problem. Utility Model Content
[0004] The purpose of this invention is to provide a fume extraction system for a melting furnace to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A fume extraction system for a melting furnace includes a connecting box. A filter screen is installed inside the connecting box. A mounting plate is fixedly installed on the top of the filter screen, penetrating the connecting box. Locking blocks are fixedly installed on both the left and right sides of the top of the connecting box. Limiting rods are fixedly installed on the front and rear sides of the left and right sides of the inner cavity of the mounting plate. Moving plates are movably sleeved on the left and right sides of the outer sides of the limiting rods. Positioning rods are fixedly installed on the left side of the left moving plate and the right side of the right moving plate. The left side of the left positioning rod and the right side of the right positioning rod penetrate the mounting plate and extend into the interior of the locking blocks. A rotating sleeve is threadedly connected to the right side of the outer side of the connecting box. A fan body is located on the right side of the rotating sleeve.
[0007] Preferably, inclined blocks are fixedly installed on the top of the movable plates on both the left and right sides, a limiting block adapted to the inclined block is provided in the inner cavity of the connecting box, a push rod is fixedly installed on the top of the limiting block, and a handle is fixedly installed on the top of the mounting plate.
[0008] Preferably, the left side of the fan body extends into the interior of the rotating sleeve, the inner wall of the rotating sleeve is threadedly connected to the right side of the fan body, and the top and bottom of the right side of the connecting box are fixedly installed with plug rods, the right side of the plug rods extends into the interior of the fan body, and the top and bottom of the left side of the fan body are fixedly provided with plug holes that are compatible with the plug rods.
[0009] Preferably, springs are fixedly connected to both the front and rear sides of the right side of the left movable plate, the right side of the springs is fixedly connected to the left side of the right movable plate, and the springs are sleeved on the outside of the limiting rod.
[0010] Preferably, vertical rods are fixedly installed on both the left and right sides of the top of the limiting block, the top of the vertical rods penetrates through the mounting plate, and the top of the push rod moves through the mounting plate and the handle sequentially from bottom to top.
[0011] Preferably, a smoking hood is fixedly connected to the left side of the connecting box.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. In this utility model, by pressing the push rod downward, the push rod drives the limiting block downward, the limiting block drives the corresponding inclined blocks on the left and right sides to move closer to each other, the inclined blocks drive the moving plates to move closer to each other, the moving plates drive the positioning rods to move closer to each other, and at the same time, the spring is compressed, so that the positioning rods move away from the locking block. Then, the handle is pulled upward, the handle drives the mounting plate upward, and the mounting plate drives the filter screen upward. This allows the filter screen to be quickly removed for cleaning, avoiding the need to remove the connecting box and improving the convenience of cleaning the filter screen.
[0014] 2. In this utility model, by rotating the sleeve in the forward direction, the sleeve moves to the right, moving away from the fan body. When the insertion rod moves away from the insertion hole, the fan body can be disassembled, making it easier for staff to maintain the fan body and improving the work efficiency of the staff. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of a fume extraction system for a melting furnace proposed in this utility model;
[0016] Figure 2 This is an exploded three-dimensional structural diagram of a fume extraction system for a melting furnace proposed in this utility model;
[0017] Figure 3 This is a partial structural cross-sectional view of a fume extraction system for a melting furnace proposed in this utility model;
[0018] Figure 4 for Figure 3 A magnified view of part A in the middle;
[0019] Figure 5 for Figure 2 A magnified view of part B in the middle section.
[0020] In the diagram: 1. Fan body; 2. Connecting box; 3. Fume hood; 4. Filter screen; 5. Mounting plate; 6. Limiting rod; 7. Moving plate; 8. Positioning rod; 9. Locking block; 10. Inclined block; 11. Limiting block; 12. Handle; 13. Spring; 14. Push rod; 15. Vertical rod; 16. Rotating sleeve; 17. Insertion rod; 18. Insertion hole. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figure 1-5 A fume extraction system for a melting furnace includes a connecting box 2. A filter screen 4 is installed inside the connecting box 2. The top of the filter screen 4 passes through the connecting box 2 and is fixedly mounted on an mounting plate 5. Locking blocks 9 are fixedly mounted on both the left and right sides of the top of the connecting box 2. Limiting rods 6 are fixedly mounted on the front and rear sides of both the left and right sides of the inner cavity of the mounting plate 5. Moving plates 7 are movably sleeved on the left and right sides of the outer sides of the limiting rods 6. Positioning rods 8 are fixedly mounted on the left side of the left moving plate 7 and the right side of the right moving plate 7. The left side of the left positioning rod 8 and the right side of the right positioning rod 8 pass through the mounting plate 5 and extend into the interior of the locking blocks 9. A rotating sleeve 16 is threadedly connected to the right side of the outer side of the connecting box 2. A fan body 1 is located on the right side of the rotating sleeve 16.
[0023] In this embodiment, inclined blocks 10 are fixedly installed on the top of the movable plates 7 on both the left and right sides. The inner cavity of the connecting box 2 is provided with a limiting block 11 that matches the inclined block 10. A push rod 14 is fixedly installed on the top of the limiting block 11. A handle 12 is fixedly installed on the top of the mounting plate 5. The left side of the fan body 1 extends into the interior of the rotating sleeve 16. The inner wall of the rotating sleeve 16 is threadedly connected to the right side of the fan body 1. Insert rods 17 are fixedly installed on the top and bottom of the right side of the connecting box 2. The right side of the insert rods 17 extends into the interior of the fan body 1. Insert holes 18 that match the insert rods 17 are fixedly opened on the top and bottom of the left side of the fan body 1.
[0024] In this embodiment, springs 13 are fixedly connected to both the front and rear sides of the right side of the left movable plate 7. The right side of the spring 13 is fixedly connected to the left side of the right movable plate 7. The spring 13 is sleeved on the outside of the limiting rod 6. Vertical rods 15 are fixedly installed on both the left and right sides of the top of the limiting block 11. The top of the vertical rod 15 passes through the mounting plate 5. The top of the push rod 14 moves from bottom to top through the mounting plate 5 and the handle 12. The left side of the connecting box 2 is fixedly connected to the smoking hood 3. The spring 13 can limit the movement of the movable plate 7, which improves the stability of the filter screen 4.
[0025] In this embodiment, during use, pressing the push rod 14 downwards causes the limit block 11 to move downwards. The limit block 11 then causes the corresponding inclined blocks 10 on the left and right sides to move closer together. The inclined blocks 10 cause the moving plates 7 to move closer together, and the moving plates 7 cause the positioning rods 8 to move closer together. At the same time, the spring 13 is compressed, causing the positioning rods 8 to move away from the locking block 9. Then, pulling the handle 12 upwards causes the mounting plate 5 to move upwards, and the mounting plate 5 causes the filter screen 4 to move upwards. This allows the filter screen 4 to be quickly removed for cleaning, avoiding the need to remove the connecting box 2 and improving the ease of cleaning the filter screen 4. By rotating the rotating sleeve 16 forwards, the rotating sleeve 16 moves to the right, moving away from the fan body 1. When the insertion rod 17 moves away from the insertion hole 18, the fan body 1 can be removed, facilitating maintenance of the fan body 1 and improving the work efficiency of the staff.
[0026] The above provides a detailed description of a melting furnace exhaust system provided by this utility model. Specific embodiments have been used to illustrate the principles and implementation methods of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A melting grate fume system comprising a connection box (2), characterized in that: The inner cavity of the connecting box (2) is provided with a filter screen (4), the top of the filter screen (4) penetrates the connecting box (2) and is fixedly installed with a mounting plate (5), the left and right sides of the top of the connecting box (2) are both fixedly installed with a clamping block (9), the front and back of the left and right sides of the inner cavity of the mounting plate (5) are both fixedly installed with a limiting rod (6), the left and right sides of the outer side of the limiting rod (6) of the left and right sides are both movably sleeved with a moving plate (7), the left side of the moving plate (7) of the left side and the right side of the moving plate (7) of the right side are both fixedly installed with a positioning rod (8), the left side of the positioning rod (8) of the left side and the right side of the positioning rod (8) of the right side are both penetrated through the mounting plate (5) and extend to the inside of the clamping block (9), the right side of the outer side of the connecting box (2) is screw-connected with a rotating sleeve (16), and the right side of the rotating sleeve (16) is provided with a fan body (1).
2. A melting furnace flue gas system according to claim 1, characterized in that: The top of the moving plate (7) of the left and right sides is fixedly installed with an inclined block (10), the inner cavity of the connecting box (2) is provided with a limiting block (11) matched with the inclined block (10), the top of the limiting block (11) is fixedly installed with a push rod (14), and the top of the mounting plate (5) is fixedly installed with a handle (12).
3. A melting grate fume system according to claim 1, characterized in that: The left side of the fan body (1) extends to the inside of the rotating sleeve (16), the inner wall of the rotating sleeve (16) is screw-connected with the right side of the outer side of the fan body (1), the top and the bottom of the right side of the connecting box (2) are both fixedly installed with an inserting rod (17), the right side of the inserting rod (17) extends to the inside of the fan body (1), and the top and the bottom of the left side of the fan body (1) are both fixedly provided with an insertion hole (18) matched with the inserting rod (17).
4. A melting furnace flue gas system according to claim 1, characterized in that: The front and back of the right side of the moving plate (7) of the left side are both fixedly connected with a spring (13), the right side of the spring (13) is fixedly connected with the left side of the moving plate (7) of the right side, and the spring (13) is sleeved on the outer side of the limiting rod (6).
5. A melting grate fume system according to claim 2, characterized in that The left and right sides of the top of the limiting block (11) are both fixedly installed with a vertical rod (15), the top of the vertical rod (15) penetrates the mounting plate (5), and the top of the push rod (14) is sequentially movably penetrated through the mounting plate (5) and the handle (12) from bottom to top.
6. A melting furnace fume system according to claim 1, characterized in that: The left side of the connecting box (2) is fixedly communicated with a smoke cover (3).