Conical spiral dryer

Abstract

The utility model discloses a conical spiral dryer which comprises a barrel and an upper cover, the upper cover is arranged above the barrel in a covering mode, the upper cover is provided with a driving assembly and a heating assembly, a spiral ribbon is connected with a main shaft through a fulcrum shaft, the main shaft, the fulcrum shaft and the spiral ribbon are all arranged in a hollow mode and communicated with one another, and the top end of the main shaft penetrates through the upper cover and is in transmission connection with the driving assembly. The heating assembly is arranged at the top end of the spindle and communicates with the spindle. Nozzles are evenly distributed at the bottom of the spiral ribbon and the bottom of the fulcrum shaft. The driving unit is adopted to drive the crushing unit, the main shaft, the fulcrum shaft and the helical ribbon are hollow to replace a jacket water loop, the structure is simple, machining is convenient, external air is heated through the heating assembly and then blown into the main shaft, the fulcrum shaft and the helical ribbon, the heating function is achieved, and in cooperation with the nozzles arranged at the bottom of the helical ribbon and the bottom of the fulcrum shaft, the crushing efficiency is improved. Hot air can be blown to materials and the inner wall of the barrel, the materials are prevented from being attached to the inner wall of the barrel, the materials can be evenly heated and dried, and the heating efficiency is improved.

Description

Technical Field

[0001] This utility model relates to drying technology, specifically a conical spiral dryer. Background Technology

[0002] The conical spiral dryer heats the chamber walls and spiral ribbon using a heat source, and then heats the material through heat transfer. The spiral ribbon, driven by a motor, agitates the material. The process is batch-operated; wet material enters the hopper and is dried using a jacket, agitation, and heating. It is primarily suitable for use in the chemical, pharmaceutical, and food industries.

[0003] Existing spiral dryers have jacketed water circuits installed in the mixing main shaft and mixing support shaft, so that the mixing main shaft and mixing support shaft can both play a mixing role and serve as a heat source. However, the contact area between the mixing main shaft and mixing support shaft and the material is relatively small. The material far from the mixing support shaft and the material on the inner wall of the cylinder cannot be dried in time, and it is easy to stick to the inner wall of the cylinder. The material is not dried evenly. Moreover, the setting of the jacketed water circuit makes the manufacturing of the mixing main shaft and mixing support shaft more difficult. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a conical spiral dryer, which adds a heating gas source. The hot air flow heats the stirring main shaft, stirring support shaft, and spiral ribbon, and sprays the gas through the spiral ribbon and nozzles on the top cover, thereby improving heating efficiency and blowing the material adhering to the wall downwards to prevent the material from sticking to the inner wall of the cylinder.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: a conical spiral dryer, comprising a cylinder and a top cover, the top cover being disposed above the cylinder, the top cover being provided with a feed inlet, a drive assembly, and a heating assembly, the cylinder being provided with a main shaft, the outer periphery of the main shaft being provided with a spiral ribbon, the spiral ribbon being connected to the main shaft via a support shaft, the main shaft, the support shaft, and the spiral ribbon being hollow and interconnected, the top end of the main shaft passing through the top cover and being connected to the drive assembly, the heating assembly being disposed at the top end of the main shaft and being connected to the main shaft, nozzles being evenly distributed at the bottom of the spiral ribbon and the bottom of the support shaft, and a discharge port being provided at the bottom of the cylinder.

[0006] Preferably, the drive assembly includes a motor and a gearbox, the gearbox being fixed to the upper cover, and the motor driving the main shaft to rotate through the gearbox.

[0007] Preferably, the heating assembly includes a heating chamber and a blower. The heating chamber is covered at the top of the main shaft, and the blower is located at the top of the heating chamber. A heater is provided inside the heating chamber, and the blower blows outside gas to the heater for heating before blowing it into the main shaft.

[0008] Preferably, the top of the upper cover is provided with a protruding strip, which is annular and hollow. The protruding strip is connected to the heating chamber through a diversion pipe, and nozzles are evenly distributed on both sides of the protruding strip.

[0009] Preferably, the cylinder body is provided with a jacket, and the top and bottom ends of the jacket are connected to joints.

[0010] Preferably, the top of the cylinder is provided with an air outlet, which is connected to a vacuum pump, and the air outlet is provided with a filter screen.

[0011] In summary, this utility model achieves the following technical effects:

[0012] This invention relates to a conical spiral dryer, in which the main shaft, support shaft, and spiral ribbon are hollow to replace the jacketed water circuit. The structure is simple and easy to manufacture. The heating components heat the outside air and blow it into the main shaft, support shaft, and spiral ribbon to achieve the heating function. In addition, the nozzles located at the bottom of the spiral ribbon and the bottom of the support shaft can blow the hot airflow onto the material and the inner wall of the cylinder, which not only prevents the material from adhering to the inner wall of the cylinder but also allows for uniform heating and drying of the material, thus improving heating efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the conical spiral dryer of this utility model;

[0014] Figure 2 This is a schematic diagram of the heating component and the drive component of the conical spiral dryer of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the top cover of the conical spiral dryer of this utility model;

[0016] Instruction manual diagram markings: 1. Cylinder; 2. Top cover; 3. Discharge port; 4. Motor; 5. Gearbox; 6. Blower; 7. Heater; 8. Heating chamber; 9. Diverter pipe; 10. Main shaft; 11. Ribbon; 12. Feed inlet; 13. Air outlet; 14. Jacket; 15. Connector; 16. Raised strip; 17. Nozzle. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings.

[0018] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," 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 communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] Example 1:

[0024] like Figure 1As shown, a conical spiral dryer includes a cylinder 1 and a top cover 2. The top cover 2 is positioned above the cylinder 1 and includes a feed inlet 12, a drive assembly, and a heating assembly. A main shaft 10 is located inside the cylinder 1, and a spiral ribbon 11 is provided around the outer periphery of the main shaft 10. The spiral ribbon 11 is connected to the main shaft 10 via a support shaft. The main shaft 10, the support shaft, and the spiral ribbon 11 are all hollow and interconnected. The top end of the main shaft 10 passes through the top cover 2 and is connected to the drive assembly. The heating assembly is located at the top end of the main shaft 10 and is connected to the main shaft 10. Nozzles 17 are evenly distributed at the bottom of the spiral ribbon 11 and the bottom of the support shaft. A discharge port 3 is located at the bottom of the cylinder 1.

[0025] Valves are installed at the discharge port 3 and the inlet port 12. The screw ribbon 11 is T-shaped, and the nozzle 17 sprays hot air downward toward the inner wall of the cylinder 1.

[0026] In this embodiment, the conical spiral dryer has a hollow main shaft 10, support shaft, and spiral ribbon 11 to replace the water circuit of the jacket 14. The structure is simple and easy to process. The heating component heats the outside air and blows it into the main shaft 10, support shaft, and spiral ribbon 11 to achieve the heating function. In addition, with the nozzles 17 set at the bottom of the spiral ribbon 11 and the bottom of the support shaft, the hot airflow can be blown to the material and the inner wall of the cylinder 1. This not only prevents the material from adhering to the inner wall of the cylinder 1, but also allows for uniform heating and drying of the material, thus improving the heating efficiency.

[0027] like Figure 2 As shown, the drive assembly includes a motor 4 and a reduction gearbox 5. The reduction gearbox 5 is fixed to the upper cover 2, and the motor 4 drives the main shaft 10 to rotate through the reduction gearbox 5. The heating assembly includes a heating chamber 8 and a blower 6. The heating chamber 8 is covered on the top of the main shaft 10, and the blower 6 is located on the top of the heating chamber 8. A heater 7 is provided inside the heating chamber 8. The blower 6 blows outside gas to the heater 7 for heating and then blows it into the main shaft 10. The heater 7 is an electric heating wire.

[0028] like Figure 3 As shown, the top of the upper cover 2 is provided with a protrusion 16. The protrusion 16 is annular and hollow. The protrusion 16 is connected to the heating chamber 8 through the diversion pipe 9. Spray nozzles 17 are evenly distributed on both sides of the protrusion 16. Both sides of the spray nozzles 17 blow hot air towards the inner wall of the upper cover 2, forming an airflow layer on the inner wall of the upper cover 2, which avoids a large amount of material dust adhering to the inner wall of the upper cover 2 and reduces the number of times the equipment is opened for cleaning.

[0029] The cylinder 1 is provided with a jacket 14, and the top and bottom ends of the jacket 14 are connected to a connector 15; the jacket 14 is provided for heating the inner wall of the cylinder 1.

[0030] The top of the cylinder 1 is provided with an air outlet 13, which is connected to a vacuum pump and is equipped with a filter screen.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A conical spiral dryer, characterized in that, The device includes a cylinder and a top cover. The top cover is located on top of the cylinder and has a feed inlet, a drive assembly, and a heating assembly. The cylinder contains a main shaft with a helical ribbon on its outer circumference. The helical ribbon is connected to the main shaft via a support shaft. The main shaft, support shaft, and helical ribbon are all hollow and interconnected. The top of the main shaft passes through the top cover and is connected to the drive assembly. The heating assembly is located at the top of the main shaft and is connected to it. Nozzles are evenly distributed at the bottom of the helical ribbon and the bottom of the support shaft. The bottom of the cylinder has a discharge port.

2. The conical spiral dryer according to claim 1, characterized in that, The drive assembly includes a motor and a gearbox. The gearbox is fixed to the upper cover, and the motor drives the main shaft to rotate through the gearbox.

3. The conical spiral dryer according to claim 1, characterized in that, The heating assembly includes a heating chamber and a blower. The heating chamber is covered at the top of the main shaft, and the blower is located at the top of the heating chamber. A heater is provided inside the heating chamber, and the blower blows outside gas to the heater for heating before blowing it into the main shaft.

4. A conical spiral dryer according to claim 3, characterized in that, The top of the upper cover is provided with a protruding strip, which is annular and hollow. The protruding strip is connected to the heating chamber through a diversion pipe, and nozzles are evenly distributed on both sides of the protruding strip.

5. A conical spiral dryer according to claim 1, characterized in that, The cylinder is equipped with a jacket, and the top and bottom ends of the jacket are connected to joints.

6. A conical spiral dryer according to claim 1, characterized in that, The top of the cylinder is provided with an air outlet, which is connected to a vacuum pump and is equipped with a filter screen.

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