Drying machine sealing device and drying machine
By adopting a combination of labyrinth sealing structure, purge pipeline and maintenance door in the dryer, the problem of poor sealing of the existing dryer is solved, and no material sprinkling and higher material handling capabilities are achieved.
Patent Information
- Application Number
- CN202421420780.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The existing dryers have poor sealing properties, which leads to the sprinkling of coal powder during entry into the dryer, causing dirty and messy environment on site, and the sealing method is reduced after long-term use, resulting in increased leakage and maintenance costs.
The maze sealing structure is used to combine the purge pipeline and the access door. The front end opening is completely sealed through the maze sealing structure, supplemented by the purge pipeline and access door to prevent material leakage and ambient air pollution.
Effectively prevent material leakage and ambient air pollution during the drying process, so that the drying process can be carried out in a more closed and controlled environment, achieving material sprinkling, improving the equipment operation site environment, and improving material handling capabilities.
Smart Images
Figure CN222688643U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dryers, and specifically provides a dryer sealing device and a dryer. Background Art
[0002] Steam tube dryers are widely used in the coal gasification field of coal chemical industry. However, in the feeding process of the dryer, an open structure is adopted, which causes coal powder to be scattered when entering the dryer, resulting in a dirty and messy on-site environment.
[0003] Common sealing methods used in drying equipment in the prior art include rubber sealing rings, packing seals and contact seals. Their sealing performance tends to gradually decrease after being subjected to vibration, expansion and contraction and long-term use, leading to leakage and increased maintenance costs.
[0004] Accordingly, the art requires a new type of dryer sealing device and dryer to solve the above technical problems. Utility Model Content
[0005] The utility model aims to solve the above technical problem, that is, to solve the problem of poor sealing performance of the existing dryer.
[0006] In a first aspect, the utility model provides a sealing device for a dryer, the sealing device comprising a sealing assembly, a body and a cover plate, wherein:
[0007] The cover plate is inserted into the front opening of the body so that the front opening is in a closed state;
[0008] The sealing assembly comprises a first labyrinth plate, a second labyrinth plate and a purge pipeline, wherein the first end of the first labyrinth plate is mounted on the machine body around the front end opening, and the second end of the first labyrinth plate is bent and enters into the front end opening; the second labyrinth plate is arranged on the surface of the cover plate close to the outer side of the machine body along the periphery of the cover plate, a labyrinth groove is formed on the second end of the first labyrinth plate or the second labyrinth plate, and the second end of the first labyrinth plate or the second labyrinth plate cooperates with the labyrinth groove to form a labyrinth sealing structure; the purge pipeline is mounted on the cover plate, the first port of the purge pipeline is arranged toward the inside of the machine body, and the second port of the purge pipeline is connected to the external gas;
[0009] The cover plate is also provided with an inspection port and a feed pipe.
[0010] Based on the above settings, the front opening is completely sealed through a labyrinth sealing structure, assisted by a purge pipeline and an inspection door, which can effectively prevent the leakage of materials and the pollution of ambient air during the drying process, so that the drying process is carried out in a more closed and controlled environment, and the dryer can achieve no material spillage during the feeding process, effectively improving the equipment operation site environment and improving the material handling capacity of the dryer.
[0011] In a preferred technical solution of the above sealing device, the purge pipeline is installed at the lower part of the cover plate.
[0012] Based on the above settings, the purge pipeline is designed to be installed at the bottom of the cover plate to prevent dust and materials deposited at the bottom from contaminating or damaging the sealing surface of the labyrinth seal. By blowing in dry or inert gas, humid air can be prevented from entering, keeping the labyrinth sealing area dry and pure, thereby improving the overall operating efficiency of the equipment and extending the equipment life.
[0013] In the preferred technical solution of the above sealing device, the first labyrinth plate is mounted on the body by bolts to facilitate disassembly and assembly of the first labyrinth plate on the body; the second labyrinth plate is mounted on the cover plate by bolts to facilitate disassembly and assembly of the second labyrinth plate on the cover plate.
[0014] Based on the above settings, the bolt installation method of the first and second labyrinth plates allows for quick disassembly and replacement, which is very suitable for application scenarios that require frequent cleaning or replacement of parts. Since the bolts can be easily fixed and loosened, equipment operators can easily perform daily maintenance without special tools, which greatly improves maintenance efficiency.
[0015] In a preferred technical solution of the sealing device, a sealing gasket is further provided on the cover plate for contact sealing of the machine body.
[0016] Based on the above arrangement, the sealing gasket on the cover plate provides additional sealing protection, which can absorb the gap between the sealing surfaces caused by the slight unevenness between the body and the cover plate, effectively reducing the risk of leakage. At the same time, the material of the sealing gasket can be heat-resistant and corrosion-resistant, further ensuring a stable seal under various environmental conditions.
[0017] In a preferred technical solution of the sealing device, the sealing gasket is detachably mounted to the cover plate by bolts.
[0018] Based on the above arrangement, the sealing gasket is detachably installed by bolts, which means that when the sealing gasket is worn or damaged, the user can quickly replace the sealing gasket without replacing the entire cover plate, reducing the repair cost and ensuring the sealing performance of the equipment in the long term.
[0019] In a preferred technical solution of the above sealing device, the first labyrinth plate, the second labyrinth plate and the sealing gasket are a multi-section combined structure.
[0020] Based on the above arrangement, the multi-section combination structure of the first labyrinth plate, the second labyrinth plate and the sealing gasket improves the modularity and customizability of the device. Users can flexibly configure the labyrinth plate and the sealing gasket according to the size and shape of the body, which provides convenience for replacing parts of different specifications or during regular maintenance.
[0021] In a preferred technical solution of the sealing device, the first labyrinth plate is an L-shaped structure.
[0022] Based on the above configuration, the first labyrinth plate is an L-shaped structure which can provide additional resistance and stability. Especially under mechanical vibration or external impact, the L-shaped structure can better maintain the sealing and prevent the sealing structure from failing due to deformation.
[0023] In the preferred technical solution of the above sealing device, the connection between the bottom of the feed pipe and the cover plate is a funnel-shaped structure.
[0024] Based on the above settings, the funnel-shaped structure at the connection between the feed pipe and the cover plate can ensure the rapid and smooth input of materials, minimize the accumulation and blockage problems that may occur during the feeding process, and also simplify the material conveying route and reduce the loss of materials during transportation.
[0025] In a preferred technical solution of the above sealing device, the external gas is an inert gas.
[0026] Based on the above settings, the use of inert gas as the purge gas can prevent safety and stability issues caused by active ingredients in the air while maintaining an inert environment inside the equipment. This is crucial for materials that are flammable, explosive, reactive, or need to be processed in an oxygen-free environment, ensuring the safety of the drying process and the high quality standards of the product.
[0027] In a second aspect, the utility model provides a dryer, comprising the sealing device described in any one of the above items. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:
[0029] Figure 1 Shows a side view of the overall structure of the utility model;
[0030] Figure 2 The utility model is shown Figure 1 Enlarged view of center circle A.
[0031] Reference numerals:
[0032] 1. Feed pipe; 2. Machine body; 3. Cover plate; 4. First labyrinth plate; 5. Sealing gasket; 6. Purge pipeline; 7. Second labyrinth plate. DETAILED DESCRIPTION
[0033] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.
[0034] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the structure must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0035] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "interconnected", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0036] See first Figure 1 , Figure 2 ,like Figure 1 , Figure 2 As shown, the utility model provides a sealing device for a dryer. The sealing device includes a sealing component, a body 2 and a cover plate 3, wherein: the cover plate 3 is inserted into the front end opening of the body 2 to make the front end opening in a closed state; it should be noted that the utility model does not impose any limitation on the specific structure of the cover plate 3, and those skilled in the art can set it according to their needs. For example, the cover plate 3 can be a square cover plate 3, and for another example, the cover plate 3 can also be a circular cover plate 3, as long as the cover plate 3 can cover the front end opening of the body 2.
[0037] The sealing assembly includes a first labyrinth plate 4, a second labyrinth plate 7 and a purge pipeline 6. The first end of the first labyrinth plate 4 is installed on the body 2 around the front end opening, and the second end of the first labyrinth plate 4 is bent into the front end opening; the second labyrinth plate 7 is arranged along the periphery of the cover plate 3 on the surface of the cover plate 3 close to the outside of the body 2, and a labyrinth groove is formed on the second end of the first labyrinth plate 4 or the second labyrinth plate 7, and the second end of the first labyrinth plate 4 or the second labyrinth plate 7 cooperates with the labyrinth groove to form a labyrinth sealing structure; the purge pipeline 6 is installed on the cover plate 3, and the first port of the purge pipeline 6 faces the body 2 is set internally, and the second port of the purge pipeline 6 is connected to the external gas; of course, it should be noted that the utility model does not impose any restrictions on the labyrinth sealing structure composed of the first labyrinth plate 4 and the second labyrinth plate 7. Those skilled in the art can set it according to their needs. For example, the first labyrinth plate 4 and the second labyrinth plate 7 can be set to a structure with multiple labyrinth grooves to form a labyrinth sealing structure. For another example, the first labyrinth plate 4 and the second labyrinth plate 7 can also be set to a splicing structure with only a single labyrinth groove, as long as the sealing of the labyrinth sealing structure is good. In addition, the utility model does not impose any restrictions on the specific structure of the first labyrinth plate 4 and the second labyrinth plate 7. Those skilled in the art can set it according to their needs, as long as the structure of the first labyrinth plate 4 and the second labyrinth plate 7 does not affect the sealing. In this preferred embodiment, the first labyrinth plate 4 is an L-shaped structure. The L-shaped structure of the first labyrinth plate 4 can provide additional resistance and stability, especially under mechanical vibration or external impact, the L-shaped structure can better maintain the sealing and prevent the sealing structure from failing due to deformation. The cover plate 3 is also provided with an inspection port and a feed pipe 1. Of course, the present invention does not impose any restrictions on the specific structure of the feed pipe 1, and those skilled in the art can set it according to their needs, as long as the material can enter the machine body 2 normally. In this preferred embodiment, the connection between the bottom of the feed pipe 1 and the cover plate 3 is a funnel-shaped structure. The funnel-shaped structure at the connection between the feed pipe 1 and the cover plate 3 can ensure the rapid and smooth input of the material, minimize the accumulation and blockage problems that may occur during the feeding process, and also simplify the material conveying route and reduce the loss of the material during transportation.
[0038] The front opening is completely sealed by a labyrinth seal structure, supplemented by purge pipes and inspection doors, which can effectively prevent material leakage and ambient air pollution during the drying process, allowing the drying process to be carried out in a more closed and controlled environment, so that the dryer can achieve no material spillage during the feeding process, effectively improving the equipment operation site environment and improving the material handling capacity of the dryer.
[0039] In addition, it should be noted that the utility model does not impose any restrictions on the installation method of the first labyrinth plate 4 and the second labyrinth plate 7. Those skilled in the art can set it according to their needs. For example, the first labyrinth plate 4 and the second labyrinth plate 7 can be fixed by bonding. For another example, the first labyrinth plate 4 and the second labyrinth plate 7 can also be installed by bolting, as long as the fixity of the first labyrinth plate 4 and the second labyrinth plate 7 is good. In this preferred embodiment, the first labyrinth plate 4 is installed on the body 2 by bolts, so that the first labyrinth plate 4 can be disassembled and assembled on the body 2; the second labyrinth plate 7 is installed on the cover plate 3 by bolts, so that the second labyrinth plate 7 can be disassembled and assembled on the cover plate 3. The bolt installation method of the first labyrinth plate 4 and the second labyrinth plate 7 allows for quick disassembly and replacement. Such a design is very suitable for application scenarios that require frequent cleaning or replacement of parts. Since the bolts can be easily fixed and loosened, the equipment operator can easily perform daily maintenance and can complete disassembly and assembly without special tools, which greatly improves the maintenance efficiency.
[0040] Furthermore, the purge pipeline 6 is installed at the lower part of the cover plate 3. Of course, the utility model does not impose any restrictions on the specific structure of the purge pipeline 6, and those skilled in the art can set it according to their needs. For example, the purge pipeline 6 can also be installed on the top of the cover plate 3. For another example, the purge pipeline 6 can also be installed on the side of the cover plate 3, as long as it is ensured that the purge pipeline 6 can introduce the materials between the cover plate 3 and the body 2 into the body 2. The purge pipeline 6 is designed to be installed at the lower part of the cover plate 3, thereby preventing dust and materials deposited at the bottom from contaminating or damaging the sealing surface of the labyrinth seal. Dry or inert gas can be blown in to prevent humid air from entering, and the labyrinth seal area can be kept dry and pure, thereby improving the overall operating efficiency of the equipment and extending the life of the equipment.
[0041] Furthermore, a sealing gasket 5 is also provided on the cover plate 3 for contact sealing with the body 2. Of course, the utility model does not impose any restrictions on the specific structure of the sealing gasket 5, and those skilled in the art can set it according to their needs. For example, the sealing gasket 5 can be a rubber sealing gasket 5, or for another example, the sealing gasket 5 can also be a metal sealing gasket 5, as long as the sealing effect between the cover plate 3 and the body 2 can be guaranteed. The sealing gasket 5 on the cover plate 3 provides additional sealing protection. It can absorb the gap between the sealing surfaces caused by the slight unevenness between the body 2 and the cover plate 3, effectively reducing the risk of leakage. At the same time, the material of the sealing gasket 5 can be a heat-resistant and corrosion-resistant material, which further ensures a stable seal under various environmental conditions.
[0042] As a preferred embodiment, the sealing gasket 5 is detachably mounted with the cover plate 3 by bolts. The sealing gasket 5 is detachably mounted by bolts, which means that when the sealing gasket 5 is worn or damaged, the user can quickly replace the sealing gasket 5 without replacing the entire cover plate 3, thereby reducing the repair cost and ensuring the sealing performance of the equipment in the long term. Of course, the utility model does not impose any restrictions on the specific installation structure of the sealing gasket 5, and those skilled in the art can set it according to their needs. For example, the sealing gasket 5 can also be installed by snap-fitting, or fixed by bonding, as long as it is ensured that the sealing gasket 5 will not be separated from the cover plate 3.
[0043] As a preferred embodiment, the first labyrinth plate 4, the second labyrinth plate 7 and the sealing gasket 5 are a multi-segment combination structure. The multi-segment combination structure of the first labyrinth plate 4, the second labyrinth plate 7 and the sealing gasket 5 improves the modularity and customizability of the device. The user can flexibly configure the labyrinth plate and the sealing gasket 5 according to the size and shape of the body 2, which provides convenience for different specifications or replacement of components during regular maintenance. Of course, it should be noted that the utility model does not impose any restrictions on the segmented structure of the first labyrinth plate 4, the second labyrinth plate 7 and the sealing gasket 5. Those skilled in the art can set it according to their needs. For example, the segmented structure can be a regular segmented structure. For another example, the segmented structure can also be an irregular segmented structure, as long as it can ensure that the first labyrinth plate 4, the second labyrinth plate 7 and the sealing gasket 5 are consistent with the structure of the cover plate 3 and the body 2.
[0044] Furthermore, the external gas is an inert gas. Using an inert gas as a purge gas can prevent safety and stability issues caused by active ingredients in the air while maintaining an inert environment inside the equipment. This is crucial for materials that are flammable, explosive, reactive, or need to be processed in an oxygen-free environment, ensuring the safety of the drying process and the high quality standards of the product.
[0045] So far, the technical solution of the utility model has been described in conjunction with the optional implementation modes shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific implementation modes. Without departing from the principle of the utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the utility model.
Claims
1. A dryer sealing device, characterized in that: The sealing device comprises a sealing assembly, a body and a cover plate, wherein: The cover plate is inserted into the front opening of the body so that the front opening is in a closed state; The sealing assembly comprises a first labyrinth plate, a second labyrinth plate and a purge pipeline, wherein the first end of the first labyrinth plate is mounted on the machine body around the front end opening, and the second end of the first labyrinth plate is bent and enters into the front end opening; the second labyrinth plate is arranged on the surface of the cover plate close to the outer side of the machine body along the periphery of the cover plate, a labyrinth groove is formed on the second end of the first labyrinth plate or the second labyrinth plate, and the second end of the first labyrinth plate or the second labyrinth plate cooperates with the labyrinth groove to form a labyrinth sealing structure; the purge pipeline is mounted on the cover plate, the first port of the purge pipeline is arranged toward the inside of the machine body, and the second port of the purge pipeline is connected to the external gas; The cover plate is also provided with an inspection port and a feed pipe.
2. The sealing device according to claim 1, characterized in that: The purge pipeline is installed at the lower part of the cover plate.
3. The sealing device according to claim 1, characterized in that: The first labyrinth plate is mounted on the body by bolts, so that the first labyrinth plate can be assembled and disassembled on the body; the second labyrinth plate is mounted on the cover plate by bolts, so that the second labyrinth plate can be assembled and disassembled on the cover plate.
4. The sealing device according to claim 1, characterized in that: The cover plate is also provided with a sealing gasket for contact sealing with the machine body.
5. The sealing device according to claim 4, characterized in that: The sealing gasket is detachably mounted to the cover plate via bolts.
6. The sealing device according to claim 5, characterized in that: The first labyrinth plate, the second labyrinth plate and the sealing gasket are a multi-section combined structure.
7. The sealing device according to claim 1, characterized in that: The first maze plate is an L-shaped structure.
8. The sealing device according to claim 1, characterized in that: The connection between the bottom of the feed pipe and the cover plate is a funnel-shaped structure.
9. The sealing device according to claim 1, characterized in that: The external gas is an inert gas.
10. A dryer, characterized in that: The dryer comprises the sealing device according to any one of claims 1 to 9 above.