Dynamic dust removal device for centrifugal casting
Through the design of flexible connecting pipes and dust collection components, the problem of dust and flue gas treatment during centrifugal casting is solved, efficient dust removal during centrifugal movement is achieved, and poor dust removal effect and interference problems in the prior art are overcome.
Patent Information
- Application Number
- CN202421927248.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-08-09
AI Technical Summary
In the prior art, dust and flue gas treatment is difficult during centrifugal casting, especially during centrifugal movement, dust removal effect is poor, and there are problems such as interference in the replacement of pipe molds and air leakage.
The flexible connection pipe and dust collection assembly are adopted to accurately connect the dust removal position to achieve effective capture during the centrifuge movement, including the first and second dust collection assembly, which is fixed to the main socket and the bearing end respectively, and move with the centrifuge host, and use the flexible connection section and the rotary joint to ensure connectivity.
The dust removal effect is improved, the process layout difficulty is overcome, and efficient dust and smoke capture is achieved during centrifuge movement, avoiding interference in pipe mold replacement.
Smart Images
Figure CN223185512U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a dust removal system, in particular to a centrifugal casting dynamic dust removal device. Background Art
[0002] The ductile iron pipe centrifugal casting machine (abbreviated as: centrifuge) moves during the casting process. The three-station and two-station centrifugal main machines both have a reciprocating motion state, and the moving stroke is related to the length of the casting workpiece.
[0003] Before centrifugal casting, the inner wall of the centrifuge will be sprayed (sprayed with paint). The dust generated during the spraying will escape from the centrifuge socket. While spraying, the centrifuge will move upward (upward), causing the centrifuge socket to escape dust while moving.
[0004] During centrifugal casting production, molten iron is fed into the centrifuge socket. The molten iron is cooled inside the centrifuge to form hot flue gas, which escapes from the centrifuge socket. While casting, the centrifuge moves downward (downward), causing the centrifuge socket to move while emitting dust.
[0005] After the ductile iron pipe is formed, the pipe pulling system extracts it from the centrifuge socket. During this process, the sand core breaks on the outside of the socket, generating smoke and dust. This dust severely pollutes the surrounding environment. The diffuse dust and smoke not only affect workers' vision but also pose a threat to their health.
[0006] Conventional dust control methods in existing technologies use either mobile ventilation ducts or fully enclosed systems. However, using mobile ventilation ducts can lead to problems such as derailment of the mobile trolley and high air leakage. Using fully enclosed systems increases costs, such as investment in enclosures and air volume, and can even create a harsh environment characterized by high temperatures and smoke.
[0007] At the same time, there is a crane running above the centrifuge. The pipe mold needs to be replaced from time to time according to the casting process. The centrifuge moves during casting, resulting in the inability to install economical and effective fixed dust collection hoods above the centrifuge, the socket, and the plug. The above problems reflect the difficulties and characteristics of dust and flue gas control during centrifuge casting.
[0008] Therefore, there is an urgent need for a dust removal device that can cooperate with the movement of the centrifuge. Summary of the Invention
[0009] In order to overcome the technical problems in the prior art such as poor dust removal effect or interference with tube mold replacement, air leakage, etc. during the movement of the centrifuge, the utility model adopts a flexible connecting pipe to accurately connect the dust removal position, and the flexible connection facilitates movement in the upward and downward intervals of the centrifuge, thereby achieving excellent dust removal effect.
[0010] The technical solution adopted by the utility model is: a centrifugal casting dynamic dust removal device, comprising:
[0011] A centrifugal main unit, which ascends along the track to receive molten iron and descends to approach the tube pulling system to pull out the workpiece. The centrifugal main unit includes a main unit socket end and a main unit socket end;
[0012] And, also includes:
[0013] A first dust collecting assembly, one end of which is fixed to the side of the running track of the centrifugal main unit, and the other end is fixed to the peripheral side of the main unit socket end, and moves with the centrifugal main unit;
[0014] The second dust collecting component has one end fixed to the side of the running track of the centrifugal main unit and the other end fixed to the peripheral side of the main unit socket end and moves with the centrifugal main unit.
[0015] Further,
[0016] The first dust collecting assembly and the second dust collecting assembly are located on the same side of the centrifugal main unit's running track, and the fixed ends of the first dust collecting assembly and the second dust collecting assembly are located between the main unit's upper maximum position at the socket end and the main unit's downward maximum position at the socket end.
[0017] Further,
[0018] The first dust collecting component is located laterally in the middle of the motion trajectory of the main unit socket end;
[0019] The second dust collecting component is located laterally at the middle of the movement trajectory of the main unit socket end.
[0020] Furthermore, the first dust collecting component includes:
[0021] The first fixed section is a fixed pipe, one end of which is connected to the dust collection system or the external exhaust system;
[0022] The first movable section is a pipe fixed to the centrifugal main unit, with one end facing the socket end of the main unit;
[0023] The first connecting section is a flexible pipe connecting the first fixed section and the first movable section;
[0024] The first dust collecting cover is located at the peripheral side of the socket end of the main machine and is communicated with the first movable section.
[0025] Further,
[0026] The first fixed section and the first movable section are arranged perpendicular to the horizontal ground;
[0027] The first fixed section and the first movable section are both provided with an inverted U-shaped elbow at their connection with the first connecting section, so that the first connecting section is arranged in a U shape between the first fixed section and the first movable section under the action of gravity.
[0028] Further,
[0029] A rotary joint is provided at the connection between the first fixed section and the first movable section and the first connecting section.
[0030] Furthermore, the second dust collecting component includes:
[0031] The second fixed section is a fixed pipe, one end of which is connected to the dust collection system or the external exhaust system;
[0032] The second movable section is a pipe fixed to the centrifugal main unit, with one end facing the main unit socket end;
[0033] The second connecting section is a flexible pipe connecting the second fixed section and the second movable section;
[0034] The second dust collecting cover is located at the peripheral side of the main unit socket end and is communicated with the second connecting section.
[0035] Further,
[0036] The second fixed section and the second movable section are arranged perpendicular to the horizontal ground;
[0037] The second fixed section and the second movable section are both provided with an inverted U-shaped elbow at their connection with the second connecting section, so that the second connecting section is arranged in a U shape between the second fixed section and the second movable section under the action of gravity.
[0038] Further,
[0039] A rotary joint is provided at the connection between the second fixed section and the second movable section and the second connecting section.
[0040] Compared with the prior art, the beneficial effects of the utility model are: flexible connection is adopted to realize dust removal during the movement of the centrifugal main machine, the dust collecting position is connected nearby, the external smoke and dust are effectively captured, the dust collection effect is improved, and the difficulty of process layout is overcome. BRIEF DESCRIPTION OF THE DRAWINGS
[0041] Figure 1 This is a schematic diagram of dust collection in the motion state of the centrifugal main unit according to a specific embodiment of the utility model;
[0042] Figure 2 This is a main view of the socket end of the main unit according to a specific embodiment of the present utility model;
[0043] Figure 3 This is a main view of the host socket end of a specific embodiment of the utility model;
[0044] Figure 4 This is a schematic diagram of the first connecting section and the second connecting section moving along with the centrifugal main unit in a specific embodiment of the present utility model;
[0045] The annotations are:
[0046] 100-centrifugal main unit; 110-main unit socket end; 120-main unit socket end;
[0047] 210 - first dust collecting assembly; 211 - first fixed section; 212 - first movable section; 213 - first connecting section; 214 - first dust collecting cover;
[0048] 220 - second dust collecting assembly; 221 - second fixed section; 222 - second movable section; 223 - second connecting section; 224 - second dust collecting hood. DETAILED DESCRIPTION
[0049] The technical solutions in the embodiments are described clearly and completely. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.
[0050] In order to overcome the technical problems in the prior art such as poor dust removal effect or interference with tube mold replacement, air leakage, etc. during the movement of the centrifuge, the utility model adopts a flexible connecting pipe to accurately connect the dust removal position, and the flexible connection facilitates movement in the upward and downward intervals of the centrifuge, thereby achieving excellent dust removal effect.
[0051] See also Figures 1 to 4 The technical solution adopted by the utility model is: a centrifugal casting dynamic dust removal device, characterized in that it includes:
[0052] The centrifugal main unit 100 moves upward along the track to receive the molten iron, and moves downward to approach the pipe pulling system to pull out the workpiece. The centrifugal main unit 100 includes a main unit socket end 110 and a main unit socket end 120; please refer to Figure 1 , the centrifugal host 100 needs uplink and downlink, it should be noted that, Figure 1In the figure, the main body socket end 120 in the initial state when downward is not drawn. For those skilled in the art, the movement trajectory of the first dust collecting component 210 and the second dust collecting component 220 in the top view can be intuitively judged.
[0053] And, also includes:
[0054] The first dust collecting assembly 210 has one end fixed to the side of the running track of the centrifugal main unit 100 and the other end fixed to the side of the main unit socket end 120 and moves with the centrifugal main unit 100;
[0055] The second dust collecting assembly 220 is fixed at one end to the side of the running track of the centrifugal main unit 100 and at the other end to the side of the main unit socket end 110, and moves with the centrifugal main unit 100. This embodiment provides a technical solution for synchronous movement with the centrifugal main unit 100, solving the problem of poor dust collection effect caused by the movement of the centrifugal main unit 100 in the prior art.
[0056] In other embodiments,
[0057] The first dust collecting assembly 210 and the second dust collecting assembly 220 are located on the same side of the running track of the centrifugal main unit 100, and the fixed ends of the first dust collecting assembly 210 and the second dust collecting assembly 220 are located between the upper maximum position of the main unit socket end 110 and the lower maximum position of the main unit socket end 120. Figure 1 The follow-up method can be to provide a flexible connection, but the length of the flexible connection will vary with the position. In order to shorten the length of the flexible connection, it is best to set it between the maximum upward position of the host socket end 110 and the maximum downward position of the host socket end 120.
[0058] In other embodiments, preferably,
[0059] The first dust collecting assembly 210 is located laterally in the middle of the movement trajectory of the main unit socket end 120;
[0060] The second dust collecting assembly 220 is located laterally in the middle of the movement trajectory of the host socket end 110 .
[0061] In some other embodiments, the first dust collecting assembly 210 includes:
[0062] The first fixed section 211 is a fixed pipe, one end of which is connected to the dust collection system or the external exhaust system;
[0063] The first movable section 212 is a pipe fixed to the centrifugal main unit 100, with one end facing the main unit socket end 120;
[0064] The first connecting section 213 is a flexible pipe connecting the first fixed section 211 and the first movable section 212;
[0065] The first dust collecting cover 214 is located on the side of the main unit socket end 120 and is connected to the first movable section 212. Figure 2 Normally, the first dust hood 214 is arranged around the circular end in an O-shape or an inverted U-shape, which provides optimal dust collection. However, due to the need for a core frame on the side of the water-cooled centrifuge, this may result in a defect on one side. However, in hot mold centrifugal casting, this issue can be overcome by placing the first dust hood 214 on the side of the centrifugal casting.
[0066] In some embodiments, preferably,
[0067] The first fixed section 211 and the first movable section 212 are arranged perpendicular to the horizontal ground;
[0068] The first fixed section 211 and the first movable section 212 are both provided with an inverted U-shaped elbow at their connection with the first connecting section 213, so that the first connecting section 213 is arranged in a U-shape between the first fixed section 211 and the first movable section 212 under the action of gravity. In the above embodiment, the flexible conduit of the movable section does not form a dead angle or bend with the fixed conduit during the movement of the centrifugal main unit 100, and a continuous unblocking state is maintained, and the technical solutions of the above embodiment can be adopted.
[0069] In some embodiments, preferably, in order to avoid the twisting of the flexible pipe of the movable section when the centrifugal main unit 100 is in motion,
[0070] A rotary joint is provided at the connection between the first fixed section 211 and the first movable section 212 and the first connecting section 213 .
[0071] In other embodiments, the second dust collecting assembly 220 is equivalent to the technical solution of the first dust collecting assembly 210, and includes:
[0072] The second fixed section 221 is a fixed pipe, one end of which is connected to the dust collection system or the external exhaust system;
[0073] The second movable section 222 is a pipe fixed to the centrifugal main unit 100, with one end facing the main unit socket end 110;
[0074] The second connecting section 223 is a flexible pipe connecting the second fixed section 221 and the second movable section 222;
[0075] The second dust collecting cover 224 is located around the main unit socket end 110 and is connected to the second connecting section 223 .
[0076] In other embodiments,
[0077] The second fixed section 221 and the second movable section 222 are arranged perpendicular to the horizontal ground;
[0078] The second fixed section 221 and the second movable section 222 are both provided with an inverted U-shaped elbow at the connection with the second connecting section 223, so that the second connecting section 223 is arranged in a U shape between the second fixed section 221 and the second movable section 222 under the action of gravity.
[0079] In another embodiment,
[0080] A rotary joint is provided at the connection between the second fixed section 221 and the second movable section 222 and the second connecting section 223 .
[0081] Specifically, during operation: the centrifugal main unit 100 reciprocates, and with the help of the first dust collecting hood 214 and the second dust collecting hood 224 fixed on the centrifugal main unit 100, the smoke and dust generated from the socket end and the plug end are collected in a targeted manner. When the centrifugal main unit 100 reciprocates, since a flexible first connecting section 213 is provided between the first fixed section 211 and the first movable section 212, it will not affect the dust collection passage, and the second dust collecting component 220 has the same effect. And because the first fixed section 211 and the first movable section 212 are connected to the first connecting section 213 at the connection, both are provided with an inverted U-shaped elbow, so that the first connecting section 213 is arranged in a U shape between the first fixed section 211 and the first movable section 212 under the action of gravity. During the movement and stretching process, the relative length can be extended by means of the U-shaped arrangement, without affecting the first connecting section 213 itself, thereby realizing dynamic dust collection. When the pipe mold needs to be replaced, since the first movable section 212 and the second movable section 222 are both at the end, it will not affect the replacement of the pipe mold. Of course, it should be noted that although the first movable section 212 and the second movable section 222 are named movable sections, they are relatively fixed on the centrifugal main unit 100 and move synchronously with the centrifugal main unit 100.
[0082] Compared with the prior art, the beneficial effects of the utility model are: flexible connection is adopted to realize dust removal during the movement of the centrifugal main machine, the dust collecting position is connected nearby, the external smoke and dust are effectively captured, the dust collection effect is improved, and the difficulty of process layout is overcome.
[0083] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A centrifugal casting dynamic dust removal device, characterized in that: include: A centrifugal main unit (100), the centrifugal main unit (100) ascends along the track to receive molten iron, descends to approach the tube pulling system, and pulls out the workpiece, the centrifugal main unit (100) comprising a main unit socket end (110) and a main unit socket end (120); And, also includes: A first dust collecting component (210) has one end fixed to the side of the running track of the centrifugal main unit (100) and the other end fixed to the peripheral side of the main unit socket end (120), and moves with the centrifugal main unit (100); The second dust collecting component (220) has one end fixed to the side of the running track of the centrifugal main unit (100) and the other end fixed to the peripheral side of the main unit socket end (110), and moves with the centrifugal main unit (100).
2. The centrifugal casting dynamic dust removal device according to claim 1, characterized in that: The first dust collecting assembly (210) and the second dust collecting assembly (220) are located on the same side of the running track of the centrifugal main unit (100), and the fixed ends of the first dust collecting assembly (210) and the second dust collecting assembly (220) are located between the maximum upward position of the main unit socket end (110) and the maximum downward position of the main unit socket end (120).
3. The centrifugal casting dynamic dust removal device according to claim 2, characterized in that: The first dust collecting component (210) is located laterally in the middle of the movement trajectory of the main unit socket end (120); The second dust collecting assembly (220) is located laterally in the middle of the movement trajectory of the main unit socket end (110).
4. The centrifugal casting dynamic dust removal device according to claim 1, characterized in that: The first dust collecting component (210) comprises: The first fixed section (211) is a fixed pipe, one end of which is connected to the dust collection system or the external exhaust system; The first movable section (212) is a pipe fixed to the centrifugal main unit (100), with one end facing the main unit socket end (120); A first connecting section (213) is a flexible pipe connecting the first fixed section (211) and the first movable section (212); The first dust collecting cover (214) is located on the peripheral side of the main unit socket end (120) and is in communication with the first movable section (212).
5. The centrifugal casting dynamic dust removal device according to claim 4, characterized in that: The first fixed section (211) and the first movable section (212) are arranged perpendicular to the horizontal ground; The first fixed section (211) and the first movable section (212) are both provided with an inverted U-shaped elbow at their connection with the first connecting section (213), so that the first connecting section (213) is arranged in a U-shape between the first fixed section (211) and the first movable section (212) under the action of gravity.
6. The centrifugal casting dynamic dust removal device according to claim 5, characterized in that: A rotary joint is provided at the connection between the first fixed section (211) and the first movable section (212) and the first connecting section (213).
7. The centrifugal casting dynamic dust removal device according to claim 1, characterized in that: The second dust collecting component (220) comprises: The second fixed section (221) is a fixed pipe, one end of which is connected to the dust collection system or the external exhaust system; The second movable section (222) is a pipe fixed to the centrifugal main unit (100), with one end facing the main unit socket end (110); The second connecting section (223) is a flexible pipe connecting the second fixed section (221) and the second movable section (222); The second dust collecting cover (224) is located on the peripheral side of the main unit socket end (110) and is in communication with the second connecting section (223).
8. The centrifugal casting dynamic dust removal device according to claim 7, characterized in that: The second fixed section (221) and the second movable section (222) are arranged perpendicular to the horizontal ground; The second fixed section (221) and the second movable section (222) are both provided with an inverted U-shaped elbow at their connection with the second connecting section (223), so that the second connecting section (223) is arranged in a U-shape between the second fixed section (221) and the second movable section (222) under the action of gravity.
9. The centrifugal casting dynamic dust removal device according to claim 8, characterized in that: A rotary joint is provided at the connection between the second fixed section (221) and the second movable section (222) and the second connecting section (223).