A dryer wall scraping device
By designing a wall-scraping device in the conical dryer, and utilizing the scraper and spring structure to reduce material adhesion, the problem of material adhesion to the inner wall of the conical barrel is solved, achieving efficient material discharge and improved scraper durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN SHANGHEYANG PLASTIC IND CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-06-26
AI Technical Summary
In existing conical dryers, after heating and drying, materials tend to adhere to the inner wall of the conical barrel, causing some materials to be unable to be discharged.
A wall scraping device for a dryer is designed, including a conical barrel, a stirring structure, and a scraper. The scraper is connected to the stirring structure through a connecting structure. The material is stirred by the cooperation of a spiral stirring belt and an eddy current circuit breaker. The material adhering to the inner wall is scraped off by the scraper. The hard impact force is reduced by the cooperation of a spring and a fixing rod.
It effectively reduces the adhesion of materials to the inner wall of the conical barrel, improves the material discharge efficiency, and extends the service life of the scraper.
Smart Images

Figure CN224415591U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dryer technology, specifically a dryer wall scraping device. Background Technology
[0002] A dryer is a device used to remove moisture from materials. A cone dryer is a type of dryer that typically uses indirect heating under vacuum conditions. The material is mixed in a cone-shaped container by a rotating ribbon or agitator, and heat is conducted to the material through the container wall, thereby achieving drying.
[0003] A conical dryer typically consists of a conical drum, a stirring mechanism, a heating mechanism, and a vacuum mechanism. The stirring mechanism usually employs ribbon or spiral blades to ensure uniform mixing of the material within the container. The heating mechanism heats and dries the material in the conical drum.
[0004] However, the above-mentioned technical conditions also have the drawback that when the material is heated and dried in the conical barrel, some of the material will adhere to the inner wall of the conical barrel, preventing some of the material from being discharged.
[0005] Based on this, the present invention designs a wall scraping device for a dryer to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to provide a wall scraping device for a dryer to solve the above-mentioned technical problems.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a wall scraping device for a dryer, comprising a conical barrel and a stirring structure. The conical barrel is provided with a cover plate, and the stirring structure is disposed on the cover plate. The stirring structure includes a main rod, a spiral stirring belt, and an eddy current circuit breaker. The eddy current circuit breaker is disposed on the main rod, and the spiral stirring belt is disposed on the main rod. A connecting structure is provided on the main rod, and multiple connecting structures are disposed on the main rod. Each connecting structure is connected to a scraper, which abuts against the inner wall of the conical barrel. The connecting structure includes a fixed cylinder, a fixed rod, and a spring. The fixed cylinder is fixedly connected to the main rod, and the fixed rod is inserted into the fixed cylinder. The scraper is fixedly connected to one end of the fixed rod, and the spring is fixedly disposed in the fixed cylinder. The other end of the fixed rod is fixedly connected to the spring, which is located between the fixed rod and the fixed cylinder.
[0008] Preferably, a follow-up telescopic rod is provided at the bottom of the main rod, and the follow-up telescopic rod is connected to the scraper.
[0009] Preferably, the spring is in a compressed state.
[0010] Preferably, the lengths of the plurality of connecting structures in the conical barrel are adapted to the shape of the conical barrel.
[0011] Preferably, the fixing rod has two guide grooves mirrored on it, and the fixing cylinder has a guide block that matches the guide groove, and the guide block is inserted into the guide groove.
[0012] Preferably, a reinforcing plate is fixedly provided on the scraper, and two reinforcing plates are mirror-arranged on the scraper, with the scraper positioned between the two reinforcing plates.
[0013] Preferably, the cover plate is provided with a feed inlet.
[0014] In summary, this application has the following beneficial technical effects: During use, the material is loaded into the conical drum, the cover is closed, and the stirring structure is activated. The main rod in the stirring structure rotates, and the spiral stirring belt and eddy current circuit breaker work together to stir the material in the conical drum. Under the action of the main rod, the connecting structure carries the scraper to scrape the material on the inner wall of the conical drum. Under the action of the scraper, the material adhering to the inner wall of the conical drum is scraped off. Simultaneously, with the cooperation of the fixed rod, fixed cylinder, and spring, the scraper can move within a certain range laterally, thereby allowing the spring to play a buffering role, reducing the hard impact force of the scraper contacting the inner wall of the conical drum, thus reducing the adhesion of material inside the conical drum. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the front structure of the dryer in this embodiment;
[0017] Figure 2 This is a schematic diagram of the dryer in this embodiment;
[0018] Figure 3 This is a schematic diagram of the stirring structure in this embodiment;
[0019] Figure 4 This is a cross-sectional structural diagram of the dryer in this embodiment.
[0020] The attached diagram lists the components represented by each number as follows:
[0021] 1. Mixing structure; 2. Feed inlet; 3. Cover plate; 4. Conical barrel; 5. Fixing rod; 6. Reinforcing plate; 7. Main rod; 8. Follow-up telescopic rod; 9. Scraper; 10. Guide groove; 11. Fixing cylinder; 12. Eddy current circuit breaker; 13. Spring; 14. Spiral mixing belt. Detailed Implementation
[0022] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0024] A wall-scraping device for a dryer includes a conical barrel 4 and a stirring structure 1. The conical barrel 4 is equipped with a cover plate 3, and the stirring structure 1 is disposed on the cover plate 3 and located inside the conical barrel 4. The stirring structure 1 includes a main rod 7, a spiral stirring belt 14, and an eddy current circuit breaker 12. The eddy current circuit breaker 12 is disposed on the main rod 7, and the spiral stirring belt 14 is disposed on the main rod 7. The spiral stirring belt 14 and the eddy current circuit breaker 12 cooperate with each other to uniformly mix the materials in the dryer.
[0025] The main rod 7 is equipped with multiple connecting structures, the length of which is adapted to the shape of the conical barrel 4. Each connecting structure is connected to a scraper 9, which abuts against the inner wall of the conical barrel 4. When the stirring structure 1 mixes the material in the conical barrel 4, the connecting structure, along with the scraper 9, scrapes off the material adhering to the inner wall of the conical barrel 4, preventing the material from easily adhering to the inner wall.
[0026] The connecting structure includes a fixed cylinder 11, a fixed rod 5, and a spring 13. The fixed cylinder 11 is fixedly connected to the main rod 7, the fixed rod 5 is inserted into the fixed cylinder 11, and the scraper 9 is fixedly connected to one end of the fixed rod 5. The spring 13 is fixedly disposed in the fixed cylinder 11, and the other end of the fixed rod 5 is fixedly connected to the spring 13. The spring 13 is located between the fixed rod 5 and the fixed cylinder 11.
[0027] Spring 13 acts as a buffer. Under the action of fixed rod 5, fixed cylinder 11, and spring 13, scraper 9 can move laterally to a certain extent, which can reduce the hard impact force when scraper 9 contacts the inner wall of conical barrel 4. When scraper 9 abuts against the inner wall of conical barrel 4, spring 13 is in a compressed state, so that scraper 9 is always pressed against the inner wall of conical barrel 4 under the action of spring 13. In this embodiment, spring 13 is a hard spring, which provides stable support without affecting the buffering effect of spring 13 on scraper 9.
[0028] The bottom of the main rod 7 is provided with a follower telescopic rod 8, which is connected to the scraper 9. The follower telescopic rod 8 works together with the connecting structure to provide stable support and connection for the scraping action of the scraper 9 on the inner wall of the conical barrel 4.
[0029] The fixed rod 5 is provided with two guide grooves 10 mirrored on it. The fixed cylinder 11 is fixedly provided with a guide block that is adapted to the guide groove 10. The guide block is inserted into the guide groove 10. The guide block and the guide groove 10 make it difficult for the fixed rod 5 and the fixed cylinder 11 to rotate relative to each other. At the same time, under the action of the guide groove 10 and the guide block, the fixed rod 5 and the fixed cylinder 11 can stably move relative to each other axially.
[0030] A reinforcing plate 6 is fixedly installed on the scraper 9. There are two reinforcing plates 6 mirror images of the scraper 9, with the scraper 9 positioned between the two reinforcing plates 6. The reinforcing plates 6 can increase the stress resistance of the scraper 9, making it less prone to damage and extending its service life. The cover plate 3 is provided with a feed inlet 2, which allows materials to be easily poured into the conical bucket 4.
[0031] The implementation principle of this embodiment is as follows: When in use, the material is loaded into the conical barrel 4, the cover plate 3 is closed, the stirring structure 1 is started, the main rod 7 in the stirring structure 1 rotates, and the spiral stirring belt 14 and the eddy current circuit breaker 12 work together to stir the material in the conical barrel 4. Under the action of the main rod 7, the connecting structure carries the scraper 9 to scrape the material on the inner wall of the conical barrel 4. Under the action of the scraper 9, the material attached to the inner wall of the conical barrel 4 is scraped off by the scraper 9. At the same time, with the cooperation of the fixed rod 5, the fixed cylinder 11 and the spring 13, the scraper 9 can move in a certain range in the lateral direction, so that the spring 13 plays a buffering role, reducing the hard impact force of the scraper 9 contacting the inner wall of the conical barrel 4, thereby reducing the adhesion of material in the conical barrel 4.
[0032] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A wall scraping device for a dryer, comprising a conical barrel (4) and a stirring structure (1), characterized in that: The conical barrel (4) is provided with a cover plate (3), and the stirring structure (1) is provided on the cover plate (3). The stirring structure (1) includes a main rod (7), a spiral stirring belt (14), and an eddy current circuit breaker (12). The eddy current circuit breaker (12) is provided on the main rod (7), and the spiral stirring belt (14) is provided on the main rod (7). A connecting structure is provided on the main rod (7), and multiple connecting structures are provided on the main rod (7). The connecting structure is connected to a scraper (9), and the scraper (9) abuts against the conical barrel (4). On the inner wall of 4), the connecting structure includes a fixed cylinder (11), a fixed rod (5) and a spring (13). The fixed cylinder (11) is fixedly connected to the main rod (7). The fixed rod (5) is inserted into the fixed cylinder (11). The scraper (9) is fixedly connected to one end of the fixed rod (5). The spring (13) is fixedly disposed in the fixed cylinder (11). The other end of the fixed rod (5) is fixedly connected to the spring (13). The spring (13) is between the fixed rod (5) and the fixed cylinder (11).
2. The dryer wall scraping device according to claim 1, characterized in that: The bottom of the main rod (7) is provided with a follow-up telescopic rod (8), which is connected to the scraper (9).
3. The dryer wall scraping device according to claim 1, characterized in that: The spring (13) is in a compressed state.
4. A dryer wall scraping device according to claim 1, characterized in that: The lengths of the multiple connecting structures in the conical barrel (4) are adapted to the shape of the conical barrel (4).
5. A dryer wall scraping device according to claim 1, characterized in that: The fixed rod (5) has two guide grooves (10) mirrored on it. The fixed cylinder (11) has a guide block that is adapted to the guide groove (10) and the guide block is inserted into the guide groove (10).
6. A dryer wall scraping device according to claim 1, characterized in that: A reinforcing plate (6) is fixedly provided on the scraper (9). Two reinforcing plates (6) are mirror images of each other on the scraper (9), and the scraper (9) is located between the two reinforcing plates (6).
7. A dryer wall scraping device according to claim 1, characterized in that: The cover plate (3) is provided with a feed inlet (2).