Center rotating disc of disc dryer
By designing a combination structure such as card slot, internal threaded hole, rake shovel plate and other components in the disc dryer, the convenient replacement of rake shovel plate is achieved, the wear problem is solved, and the service life and drying efficiency of the equipment are improved.
Patent Information
- Application Number
- CN202422333957.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-25
AI Technical Summary
In existing disc dryers, rake shovels are prone to wear when scraping the sides and inner walls of the turntable, and are inconvenient to replace, affecting the service life and drying efficiency of the equipment.
A central turntable of the disc dryer is designed, which adopts a combination of card slots, internal threaded holes, rake shovel plates, fixing ears, jacks and pushing mechanisms. The spring-driven pins are used to achieve convenient installation and replacement of the rake shovel plates to ensure the stable connection between the rake shovel plates and the turntable.
It realizes convenient replacement of rake shovel boards, improves the practicality and drying efficiency of the equipment, and ensures effective propulsion and scraping quality of materials.
Smart Images
Figure CN223077367U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of disc dryers, and more specifically, to a central rotating disc of a disc dryer. Background Technique
[0002] The rotary disc dryer is a sludge indirect heating and drying equipment, which is widely used in the chemical industry, food industry and feed industry. When drying sludge, the sludge is fed into the drying equipment through the feed inlet, and the working medium flows between the body shell and the hollow shaft. Heat is transferred through the C-type jacket, hollow shaft and hollow disc pieces welded on the shaft. The sludge is indirectly heated and dried, and the formed water vapor gathers at the dome of the drying equipment and is carried out of the drying equipment by the carrier gas. The hollow disc pieces are basically perpendicular to the shaft. Through the action of the stirrers on the disc pieces, the sludge is stirred and pushed, and the drying surface is continuously updated, so as to achieve the purpose of drying. Indirect heating with steam, the moisture evaporates faster by stirring the material for drying, which is suitable for both semi-drying and full-drying processes of the material. A rake is arranged on the side of the central rotating disc of the dryer to push and clean the sludge, but when the rake scrapes the sludge on the side of the rotating disc and the inner wall of the body shell, it will cause wear of the rake, affecting the quality of subsequent scraping. At the same time, the rake is generally welded on the rotating disc, which is not convenient for replacement. Therefore, we propose a central rotating disc of a disc dryer. Content of the Utility Model
[0003] Aiming at the problems mentioned in the above background technique, the purpose of the utility model is to provide a central rotating disc of a disc dryer.
[0004] To solve the above problems, the utility model adopts the following technical scheme:
[0005] A central rotating disc of a disc dryer, comprising a rotating pipe shaft, a plurality of circular rotating discs are fixedly sleeved on the outer side of the rotating pipe shaft, a plurality of clamping grooves are respectively opened on the sides of the plurality of circular rotating discs, internal threaded holes are respectively opened at both ends of the plurality of circular rotating discs, a rake plate is sleeved in the inner cavity of the clamping groove, fixing ears are respectively fixedly connected to both sides of the rake plate, the inner sides of the two fixing ears are respectively attached to both ends of the circular rotating disc, insertion holes are respectively opened on the two fixing ears, a pushing mechanism is arranged in the inner cavity of the internal threaded hole, a plug pin is arranged on the pushing mechanism, and the end of the plug pin is movably sleeved in the inner cavity of the insertion hole. Air inlet and outlet pipes are respectively fixedly sleeved at both ends of the rotating pipe shaft.
[0006] As a preferred embodiment of the present utility model, the pushing mechanism includes an external stud threadedly installed in the inner cavity of the internal thread hole. A spring is fixedly connected to the end face of the external stud, and a push block is fixedly connected to the end of the spring. The latch pin is fixedly connected to the end face of the push block. A square tube is fixedly connected to the end face of the external stud, and a square column is movably sleeved in the inner cavity of the square tube. The end of the square column is connected to the push block.
[0007] As a preferred embodiment of the present utility model, one end of the circular turntable is fixedly connected with a plurality of cutting knives respectively.
[0008] As a preferred embodiment of the present utility model, air distribution grooves are provided inside the circular turntable, and the inner cavity of the air distribution groove is communicated with the inner cavity of the rotating pipe shaft.
[0009] As a preferred embodiment of the present utility model, the side surface of the square column is in contact with the inner wall of the square tube.
[0010] As a preferred embodiment of the present utility model, the side surface of the rake shovel plate is in contact with the inner wall of the card slot.
[0011] As a preferred embodiment of the present utility model, the inner diameter of the jack is equal to the outer diameter of the latch pin.
[0012] The advantages of the present utility model are as follows:
[0013] In the present utility model, through the combined use of the card slot, the internal thread hole, the rake shovel plate, the fixed ears, the jack, the pushing mechanism and the latch pin, the rake shovel plate is clamped into the inner cavity of the card slot. At the same time, the two fixed ears on the side surface of the rake shovel plate are placed at both ends of the circular turntable. The spring on the pushing mechanism drives the latch pin to insert into the jack on the fixed ear, so as to realize the installation of the rake shovel plate on the side of the circular turntable. In addition, when the rake shovel plate is worn and needs to be replaced, the latch pin is disengaged from the inner cavity of the jack to release the fixation of the rake shovel plate and the fixed ears, so as to remove the worn rake shovel plate and replace it with a new rake shovel plate, realizing the function of conveniently replacing the rake shovel plate. In addition, it ensures the quality of the rake shovel plate scraping the circular turntable and the inner wall of the dryer and pushing the material, improving the practicability of the central turntable of the disc dryer. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is the overall structural schematic diagram of the present utility model;
[0015] Figure 2 is the structural schematic diagram of the circular turntable of the present utility model;
[0016] Figure 3 is the cross-sectional schematic diagram of the circular turntable of the present utility model;
[0017] Figure 4Schematic diagram of the structure of the rake shovel plate of the present utility model;
[0018] Figure 5 Schematic diagram of the structure of the driving mechanism of the present utility model;
[0019] Figure 6 Cross-sectional schematic diagram of the driving mechanism of the present utility model.
[0020] Explanation of the reference numerals in the figure:
[0021] 1. Rotating pipe shaft; 2. Circular turntable; 3. Card slot; 4. Internal thread hole; 5. Rake shovel plate; 6. Fixed ear; 7. Insertion hole; 8. Driving mechanism; 9. Pin; 10. External stud; 11. Spring; 12. Pushing block; 13. Square cylinder; 14. Square column; 15. Air distribution groove; 16. Air inlet and outlet pipe; 17. Cutting knife. Specific implementation manner
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0025] Embodiment:
[0026] Please refer to Figure 1-6, A central rotating disc of a disc dryer, comprising a rotating pipe shaft 1. A plurality of circular rotating discs 2 are fixedly sleeved on the outer side of the rotating pipe shaft 1. A plurality of card slots 3 are respectively formed on the side surfaces of the plurality of circular rotating discs 2. Internal threaded holes 4 are respectively formed at both ends of the plurality of circular rotating discs 2. A rake shovel plate 5 is sleeved in the inner cavity of the card slot 3. Fixed ears 6 are respectively fixedly connected to both sides of the rake shovel plate 5. The inner side surfaces of the two fixed ears 6 are respectively attached to both ends of the circular rotating disc 2. Insertion holes 7 are respectively formed on the two fixed ears 6. A pushing mechanism 8 is arranged in the inner cavity of the internal threaded hole 4. A pin 9 is arranged on the pushing mechanism 8. The end of the pin 9 is movably sleeved in the inner cavity of the insertion hole 7. Air inlet and outlet pipes 16 are respectively fixedly sleeved at both ends of the rotating pipe shaft 1.
[0027] In this embodiment, the hot air is introduced and discharged through the air inlet and outlet pipes 16 at both ends of the rotating pipe shaft 1, so that the heat enters the rotating pipe shaft 1 and the air distribution groove 15, in order to dry the materials.
[0028] Specifically, please refer to Figure 2 , Figure 5 and Figure 6 , The pushing mechanism 8 includes an external screw column 10 threadedly installed in the inner cavity of the internal threaded hole 4. A spring 11 is fixedly connected to the end face of the external screw column 10. A push block 12 is fixedly connected to the end of the spring 11. The pin 9 is fixedly connected to the end face of the push block 12. A square cylinder 13 is fixedly connected to the end face of the external screw column 10. A square column 14 is movably sleeved in the inner cavity of the square cylinder 13. The end of the square column 14 is connected to the push block 12.
[0029] In this embodiment, the elastic force of the spring 11 is used to drive the pin 9 to insert into the insertion hole 7, in order to install and fix the fixed ear 6 and the rake shovel plate 5. In addition, the external screw column 10 is threadedly installed in the inner cavity of the internal threaded hole 4, so as to install structures such as the square cylinder 13, the square column 14, the spring 11 and the push block 12 in the inner cavity of the internal threaded hole 4.
[0030] Specifically, please refer to Figure 2 , A plurality of cutting knives 17 are respectively fixedly connected to one end of the circular rotating disc 2.
[0031] In this embodiment, the cutting edge end of the cutting knife 17 is used to stir and cut the materials between two adjacent circular rotating discs 2, to ensure that the materials can be separated for sufficient drying.
[0032] Specifically, please refer to Figure 3 , An air distribution groove 15 is arranged inside each of the circular rotating discs 2. The inner cavity of the air distribution groove 15 is communicated with the inner cavity of the rotating pipe shaft 1.
[0033] In this embodiment, it is ensured that the hot air in the inner cavity of the rotating pipe shaft 1 can enter the air distribution groove 15, so that the side part of the circular rotating disc 2 is heated to dry the materials in the dryer.
[0034] For details, please refer to Figure 6 The side surface of the square column 14 fits with the inner wall of the square tube 13 .
[0035] In this embodiment, the sliding stability of the square tube 13 and the square column 14 is ensured, and the stability of the push block 12 is also ensured.
[0036] For details, please refer to Figure 2 and Figure 4 The side surface of the shovel plate 5 is in contact with the inner wall of the slot 3 .
[0037] In this embodiment, the stability of the raking plate 5 being inserted into the inner cavity of the slot 3 is ensured.
[0038] For details, please refer to Figure 4 and Figure 5 , the inner diameter of the socket 7 is equal to the outer diameter of the latch pin 9.
[0039] In this embodiment, the stability of the insertion of the latch 9 into the inner cavity of the insertion hole 7 is ensured, thereby ensuring the stability of the latch 9 fixing the fixing ear 6 and the shovel plate 5.
[0040] Working principle: When the material in the dryer is dried, the driving device is used to drive the rotating pipe shaft 1, the circular turntable 2 and the rake shovel plate 5 to rotate, and hot air is introduced from the inlet and outlet air pipes 16 to the inner cavity of the rotating pipe shaft 1 and the air distribution groove 15. The heat of the hot air is used to make the circular turntable 2 dry the material. At the same time, the rake shovel plate 5 is used to scrape the end of the circular turntable 2 and the material on the inner wall of the dryer, and at the same time, the material is pushed forward in the dryer. When the rake shovel plate 5 is worn and needs to be replaced, first press the latch 9 to disengage it from the inner cavity of the socket 7 on the fixed ear 6. At this time, the rake shovel plate 5 is directly pulled out from the slot 3 on the side of the circular turntable 2, and then the new rake shovel plate 5 is inserted into the slot 3. At the same time, the fixed ears 6 on the sides of the rake shovel plate 5 are respectively placed at both ends of the circular turntable 2. At this time, the elastic force of the spring 11 is used to drive the latch 9 to be reinserted into the socket 7 on the side of the fixed ear 6, so that the rake shovel plate 5 is installed on the circular turntable 2.
[0041] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.
Claims
1. A central rotating disc of a disc dryer, comprising a rotating pipe shaft (1), characterized in that: A plurality of circular turntables (2) are fixedly sleeved on the outer side of the rotating pipe shaft (1). A plurality of clamping grooves (3) are respectively formed on the side surfaces of the plurality of circular turntables (2). Inner threaded holes (4) are respectively formed at both ends of the plurality of circular turntables (2). A rake shovel plate (5) is sleeved in the inner cavity of the clamping groove (3). Fixed ears (6) are respectively fixedly connected to both sides of the rake shovel plate (5). The inner side surfaces of the two fixed ears (6) are respectively attached to both ends of the circular turntable (2). Insertion holes (7) are respectively formed in the two fixed ears (6). A pushing mechanism (8) is arranged in the inner cavity of the inner threaded hole (4). A pin (9) is arranged on the pushing mechanism (8). The end of the pin (9) is movably sleeved in the inner cavity of the insertion hole (7). Air inlet and outlet pipes (16) are respectively fixedly sleeved at both ends of the rotating pipe shaft (1).
2. The central rotating disk of a disk dryer according to claim 1, characterized in that: The pushing mechanism (8) includes an external screw (10) threadedly installed in the inner cavity of the inner threaded hole (4). A spring (11) is fixedly connected to the end surface of the external screw (10). A push block (12) is fixedly connected to the end of the spring (11). The pin (9) is fixedly connected to the end surface of the push block (12). A square cylinder (13) is fixedly connected to the end surface of the external screw (10). A square column (14) is movably sleeved in the inner cavity of the square cylinder (13). The end of the square column (14) is connected to the push block (12).
3. The central rotating disk of a disk dryer according to claim 1, characterized in that: A plurality of cutting knives (17) are respectively fixedly connected to one end of the circular turntable (2).
4. A central rotating disk of a disk dryer according to claim 1, characterized in that: Air distribution grooves (15) are arranged inside the circular turntables (2). The inner cavities of the air distribution grooves (15) are communicated with the inner cavity of the rotating pipe shaft (1).
5. The central rotating disk of a disk dryer according to claim 2, characterized in that: The side surface of the square column (14) is attached to the inner wall of the square cylinder (13).
6. The central rotating disk of a disk dryer according to claim 1, characterized in that: The side surface of the rake shovel plate (5) is attached to the inner wall of the clamping groove (3).
7. The central rotating disk of a disk dryer according to claim 1, characterized in that: The inner diameter of the insertion hole (7) is equal to the outer diameter of the pin (9).