Roller dryer capable of fully drying

By setting up the design of indexing plate and air jet pipe in the drum dryer, irregular hot air flow is formed. Combined with the circulation system and guide plate, the problems of uneven heating and high energy consumption are solved, and uniform drying of materials and reduced energy consumption are achieved.

CN223400071UActive Publication Date: 2025-09-30JIANGMEN DEYIXIN PLASTIC MOULD PROD FACTORY CO LTD
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Patent Information

Application Number
CN202422911116.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-09-30
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

Existing drum dryers have problems with uneven heating and high energy consumption during the heating process. In particular, the temperature of the material close to the heating wire is high, while the temperature away from the heating wire is low, resulting in uneven drying of the material.

Method used

A dividing plate is set in the drum body, and an air jet pipe is installed on the dividing plate. The air jet pipe has multiple through holes. The hot air is transported to the air jet pipe by the fan and ejected through the through holes to form an irregular hot air flow. Combined with the circulation system and guide plate design, it ensures that the material is evenly dried.

Benefits of technology

The material is fully dried, energy consumption is reduced, drying efficiency and heating rate are improved, and material loss and defective rate are reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of roller drying machines, in particular to a roller drying machine capable of fully drying, a heating assembly is installed on a roller body, the heating assembly provides heat for the roller body to enable materials in the roller body to be rapidly dried, and the heating assembly comprises an index plate. The rotary drum comprises a rotary drum body, an index plate is arranged in the rotary drum body, air spraying pipes are installed on the index plate, a plurality of through holes are distributed in each air spraying pipe, the index plate is used for distributing inflow air and spraying out the inflow air through the through holes in the air spraying pipes, and when the rotary drum is used, hot air enters the air spraying pipes through the index plate and is sprayed out of the through holes. A plurality of air spraying pipes are installed on the index plate, through holes in the air spraying pipes are dense, after hot air is sprayed into the roller body through the through holes, the hot air interferes with one another in the roller body and moves irregularly, the temperature in the roller body is rapidly increased through the hot air, then materials in the roller body are fully dried, and energy consumption is low.
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Description

Technical Field

[0001] The utility model relates to the technical field of drum dryers, in particular to a drum dryer capable of fully drying. Background Art

[0002] Drum dryer (also known as rotary drum dryer, rotary dryer, etc.) is a contact type internal heating conduction drying machine. The drum of the drum dryer is a slightly inclined and rotating cylinder. The wet material enters from the upper end and the dry material is collected from the lower end.

[0003] Chinese patent CN218296550U discloses an electric heating heat radiation conduction type rotary drum dryer, in which a first heating wire and a second heating wire are installed on the inner wall of the drying cylinder, and a plurality of the first heating wire and the second heating wire are vertically distributed, so that the heating uniformity is strong, and the thermal efficiency of the dryer is high. The heat generated by the heating wire is radiated to the kiln cylinder of the rotary drying kiln, and then the heat on the kiln cylinder is conducted to the material to be dried in the kiln, thereby playing a drying role. In the above scheme, when the heating wire is heated, many heating wires need to be arranged, and more electricity is required during heating. Moreover, when heating, the temperature of the material close to the heating wire is high, and the temperature far away from the heating wire is low, resulting in uneven heating of the material.

[0004] In order to solve this problem, the utility model provides a drum dryer which can fully dry the food. Utility Model Content

[0005] The purpose of the utility model is to provide a drum dryer that can fully dry the materials. A dividing plate is provided in the drum body, and a plurality of air jets are installed on the dividing plate. The through holes on the air jets are relatively dense. When hot air is sprayed into the drum body from the through holes, the hot air interferes with each other in the drum body and moves irregularly, so that the hot air quickly raises the temperature in the drum body, thereby fully drying the materials inside, and the energy consumption is low.

[0006] In order to solve the problems of the prior art, the utility model provides a drum dryer that can fully dry, including a frame and a drum body installed on the top of the frame, the drum body is used to rotate to dry the material in the drum body, the drum body is installed with a heating component, the heating component provides heat to the drum body for quickly drying the material in the drum body, the heating component includes a dividing plate, the dividing plate is installed with an air jet, each air jet is distributed with a plurality of through holes, the dividing plate is used to distribute the inflowing air and spray it through the through holes in the air jet. When in use, the hot air enters the air jet through the dividing plate and is sprayed from the through holes to dry the material in the drum body.

[0007] Preferably, a plurality of the air jet pipes are provided on the dividing plate, and the air jet pipes are evenly distributed around the dividing plate.

[0008] Preferably, one air jet pipe is provided on the dividing plate, and the air jet pipe is provided at the center of the dividing plate.

[0009] Preferably, the heating assembly also includes a fan, the air outlet of the fan is connected to the dividing plate, the interior of the dividing plate is hollow, the air inlet of the fan is connected to a first connecting pipe, one end of the first connecting pipe is connected to a heater, and a plurality of heating wires are distributed inside the heater, and the heating wires inside the heater are used to heat the air inside it and input it into the drum body through the fan.

[0010] Preferably, one end of the heater is connected to a filter through a pipe, one end of the filter is connected to a second connecting pipe, one end of the second connecting pipe extends to the inside of the drum body, and a filter element is provided inside the filter, and the filter element in the filter is used to filter dust in the air entering the heater.

[0011] Preferably, one end of the drum body is provided with a feeder, and the feeder is fixed to the frame through a bracket, the other end of the drum body is provided with a discharger, and the discharger is fixed to the frame through a bracket, the top of the feeder is connected to a feed port, the bottom end of the feed port extends into the drum body, and the bottom of the discharger is connected to an outlet for discharging.

[0012] Preferably, limiting rails are fixed on both sides of the outside of the drum body, and the bottom of the limiting rails engages with limiting wheels, which are installed on the surface of the frame through bearing seats. The limiting rails are used to support the drum body and ensure stable operation of the drum body.

[0013] Preferably, a number of guide plates are evenly arranged on the inner wall of the drum body, and the guide plates rotate with the drum body, so that the material rotates to the highest point of the drum body and then falls down. A spiral blade is provided inside the drum body near the discharger, and the spiral blade rotates the material out as the drum body rotates.

[0014] Preferably, a transmission assembly is also installed on the frame, and the transmission assembly is used to drive the drum body to rotate. The transmission assembly includes a rotating driving member, and the output end of the rotating driving member is connected to a reduction assembly, and the output end of the reduction assembly is connected to a driving gear, and the driving gear is engaged with a driven gear, and the driven gear is fixed to the outside of the drum body.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the drum dryer that can fully dry is reasonable in structure and has the following advantages:

[0016] (1) The utility model provides a dividing plate in the drum body, on which a plurality of air jets are mounted, and a plurality of through holes are distributed on the air jets. The air is heated by the heating wire in the heater, and the hot air is transported to the air jets by the fan and ejected through the through holes on the air jets. The through holes on the air jets are relatively dense. When the hot air is ejected from the through holes into the drum body, the hot air interferes with each other in the drum body and moves irregularly, so that the hot air quickly increases the temperature in the drum body, thereby fully drying the material inside, and the energy consumption is low.

[0017] (2) The utility model provides a drum body, a first connecting pipe and a second connecting pipe, so that the dryer forms a circulation system, so that heat can be continuously circulated in the drum body, thereby reducing heat loss and saving energy.

[0018] (3) The present invention is provided with a guide plate inside the drum body. When the drum body rotates, the drum body causes the internal guide plate to rotate simultaneously, thereby facilitating the lifting of the material at the lower part of the drum body to the upper part. The material then falls from the top to the bottom, allowing the material to fully contact with the hot air, thereby avoiding the accumulation of material at the bottom of the drum body, which causes the material to heat too slowly, thereby increasing the heating rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the first three-dimensional structure of a drum dryer that can fully dry.

[0020] Figure 2 It is a schematic diagram of the second three-dimensional structure of a drum dryer that can fully dry.

[0021] Figure 3 The utility model is a schematic diagram of a top view of a drum dryer capable of fully drying.

[0022] Figure 4 It is a schematic diagram of the internal structure of a drum dryer that can fully dry.

[0023] Figure 5 The present invention is a schematic diagram of the first structure of a drum body of a drum dryer capable of fully drying.

[0024] Figure 6 The present invention is a second structural schematic diagram of a drum body of a drum dryer capable of fully drying.

[0025] The numbers in the figure are: 1. frame; 2. drum body; 21. feeder; 211. feed port; 22. discharger; 23. limit rail; 24. limit wheel; 25. guide plate; 26. spiral plate; 3. transmission assembly; 31. rotary drive member; 32. reduction assembly; 33. driving gear; 34. driven gear; 4. heating assembly; 41. fan; 42. first connecting pipe; 43. heater; 44. filter; 45. second connecting pipe; 46. dividing plate; 461. jet pipe. DETAILED DESCRIPTION

[0026] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is described in further detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Reference Figures 1-6 As shown, the utility model provides: a drum dryer that can fully dry, including a frame 1 and a drum body 2 installed on the top of the frame 1, the drum body 2 is used to rotate to dry the material in the drum body 2, and a heating component 4 is installed on the drum body 2, the heating component 4 provides heat to the drum body 2 for quickly drying the material in the drum body 2, the heating component 4 includes a dividing plate 46, and an air jet 461 is installed on the dividing plate 46, each air jet 461 is distributed with a plurality of through holes, the dividing plate 46 is used to distribute the incoming air and eject it through the through holes in the air jet 461. When in use, the hot air enters the air jet 461 through the dividing plate 46 and is ejected from the through holes to dry the material in the drum body 2, the dividing plate 46 is designed to be rotatable or fixed, and the precise mechanical structure ensures that the air is evenly distributed to each air jet 461, and the air jet 461 is evenly distributed along the circumferential direction of the dividing plate 46, ensuring that the hot air can cover the material in the drum in all directions and without dead angles, accelerate the evaporation of moisture on the surface of the material, and improve the drying efficiency.

[0028] In the first embodiment, multiple air jets 461 are installed on the indexing plate 46. These air jets 461 are evenly distributed around the indexing plate 46, with the air jets 461 evenly distributed in a circular pattern around the edge or specific areas of the indexing plate 46. This ensures an equal supply of hot air from the center to the edge of the indexing plate 46. This layout helps create a uniform airflow field, reduces dead spots during the drying process, and ensures uniform heating of the material within the drum, thereby improving the drying effect. Hot air is ejected through the through-holes of the air jets 461 at a specific angle and speed, forming multi-directional and multi-angle airflow, further promoting moisture evaporation from the material surface and internal heat transfer.

[0029] Due to the even distribution and multi-directional spraying characteristics of air jets 461, the material within the drum is quickly and evenly exposed to the hot air, thereby accelerating the evaporation of moisture. This not only shortens drying time, but also improves drying efficiency and reduces energy consumption. The evenly distributed airflow field helps reduce temperature and humidity differences in the material during the drying process, ensuring that the material experiences the same drying conditions at every location within the drum. This not only helps improve the drying quality of the product, but also reduces material loss and defective product rates caused by uneven drying.

[0030] In the second embodiment, one air jet pipe 461 is provided on the indexing plate 46 , and the air jet pipe 461 is provided at the center of the indexing plate 46 .

[0031] The air jet 461 is located in the center of the indexing plate 46, which means that hot air will be ejected from the center of the drum to the surrounding area. In this design, the hot air first contacts the material in the center of the drum, then gradually diffuses outward through the gaps between the material layers, achieving drying of the entire drum.

[0032] The heating assembly 4 also includes a fan 41, the air outlet of which is connected to a hollow indexing plate 46. The fan 41 is the power source for the entire heating assembly 4, responsible for delivering heated air to the drum body 2. Its air outlet is directly connected to the hollow portion of the indexing plate 46, ensuring that the hot air can smoothly enter the air injection pipe 461 and be evenly distributed. The air inlet of the fan 41 is connected to a first connecting pipe 42, one end of which is connected to a heater 43. Heater 43 has multiple heating wires distributed within it. These heating wires heat the air within heater 43, which is then fed into the drum body 2 through the fan 41.

[0033] The air is heated by the heating wire in the heater 43, and the hot air is transported to the air jet pipe 461 through the fan 41 and ejected through the through holes on the air jet pipe 461. The through holes on the air jet pipe 461 are relatively dense. When the hot air is ejected from the through holes into the drum body 2, the hot air interferes with each other in the drum body 2 and moves irregularly, so that the hot air quickly increases the temperature in the drum body 2, thereby fully drying the internal material with low energy consumption.

[0034] One end of the heater 43 is connected to a filter 44 via a pipe. One end of the filter 44 is connected to a second connecting pipe 45. One end of the second connecting pipe 45 extends into the interior of the drum body 2. A filter element is disposed within the filter 44. The filter element in the filter 44 is used to filter dust from the air entering the heater 43. The filter 44 is located before the heater 43 and its primary function is to filter dust, impurities, and other particulate matter from the air entering the heater 43. This helps protect the heating wire inside the heater 43 from contamination, extending its service life and preventing reduced heating efficiency or safety hazards caused by dust accumulation.

[0035] One end of the drum body 2 is provided with a feeder 21, and the feeder 21 is fixed to the frame 1 through a bracket. The other end of the drum body 2 is provided with a discharger 22, and the discharger 22 is fixed to the frame 1 through a bracket. The top of the feeder 21 is connected to a feed port 211, and the bottom end of the feed port 211 extends into the drum body 2. The bottom of the discharger 22 is connected to an outlet for discharging. The outlet is the channel for the material to leave the drum body 2. Its design should ensure that the material can be discharged smoothly and quickly to avoid accumulation or blockage at the outlet.

[0036] The drum body 2, the first connecting pipe 42 and the second connecting pipe 45 make the dryer form a circulation system, so that heat can be continuously circulated in the drum body 2, reducing heat loss and thus playing a role in saving energy.

[0037] Limit rails 23 are fixed to both sides of the exterior of the drum body 2. Limit wheels 24 engage at their bottoms and are mounted on the surface of the frame 1 via bearing seats. The limit rails 23 support and stabilize the drum body 2. The limit wheels 24 guide the drum body 2 for stable rotation along the limit rails 23. By tightly fitting with the limit rails 23, they limit the horizontal movement of the drum body 2 and prevent it from shifting or tilting during operation.

[0038] Several guide plates 25 are evenly spaced along the inner wall of the drum body 2. These plates rotate with the drum body 2, allowing the material to reach its highest point and then fall. The primary function of these plates is to guide the material within the drum for efficient tumbling and mixing. As the drum body 2 rotates, the guide plates 25 drive the material along, causing it to continuously rise, tumble, and fall within the drum. This movement increases the contact area between the material and the hot air, improving drying efficiency. Inside the drum body 2, near the discharger 22, spiral blades 26 are positioned to dissipate the material as the drum body 2 rotates. When the drum body 2 reverses, the spiral blades 26 rotate with it, using their spiral shape to push the material from one end of the drum to the other. This pushing action ensures that the dried material is discharged from the drum promptly and smoothly, preventing excessive retention or clogging of the material within the drum.

[0039] A guide plate 25 is provided inside the drum body 2. When the drum body 2 rotates, the drum body 2 causes the internal guide plate 25 to rotate simultaneously, thereby facilitating the lifting of the material at the lower part of the drum body 2 to the upper part, and then the material falls from the top to the bottom, so that the material is fully in contact with the hot air, avoiding the accumulation of material at the bottom of the drum body 2, which causes the material to be heated too slowly, thereby increasing the heating rate.

[0040] A transmission assembly 3 is also installed on the frame 1. The transmission assembly 3 is used to drive the drum body 2 to rotate. The transmission assembly 3 includes a rotary driving member 31. The output end of the rotary driving member 31 is connected to a reduction assembly 32. The output end of the reduction assembly 32 is connected to a driving gear 33. The driving gear 33 is engaged with a driven gear 34. The driven gear 34 is fixed to the outside of the drum body 2.

[0041] The rotary drive member 31 is typically the power source of the transmission assembly 3, such as a motor. It generates rotational power, providing the initial driving force for the entire transmission system. This rotational motion is then transferred to the reduction assembly 32 for deceleration. The reduction assembly 32's primary function is to reduce the high-speed rotational motion generated by the rotary drive member 31 to the required rotational speed of the drum body 2. This is because drum dryers typically do not require excessively high rotational speeds, while the rotational drive member 31 often generates a high speed. Directly driving the drum body 2 could damage the equipment or cause unstable operation. The power is then transmitted to the driving gear 33 and the driven gear 34, causing the drum body 2 to rotate, thereby continuously turning the material within the drum body 2 for drying.

[0042] The above embodiments merely represent one or several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A fully drying drum dryer comprising a frame (1) and a drum body (2) mounted on top of the frame (1), wherein the drum body (2) is used to rotate to dry the material in the drum body (2), characterized in that: A heating assembly (4) is mounted on the drum body (2), and the heating assembly (4) provides heat to the drum body (2) for quickly drying the material in the drum body (2). The heating assembly (4) includes a dividing plate (46), and an air jet (461) is mounted on the dividing plate (46). Each air jet (461) is provided with a plurality of through holes. The dividing plate (46) is used to distribute the inflowing air and to eject the air through the through holes in the air jet (461). When in use, hot air enters the air jet (461) through the dividing plate (46) and is ejected from the through holes to dry the material in the drum body (2).

2. A fully drying drum dryer according to claim 1, characterized in that: A plurality of the air jet pipes (461) are provided on the indexing plate (46), and the air jet pipes (461) are evenly distributed around the indexing plate (46).

3. The drum dryer capable of fully drying according to claim 1, characterized in that: The air jet pipe (461) is provided on the indexing plate (46), and the air jet pipe (461) is provided at the center of the indexing plate (46).

4. The drum dryer capable of fully drying according to claim 1, characterized in that: The heating assembly (4) further comprises a fan (41), the air outlet of the fan (41) being connected to a dividing plate (46), the interior of the dividing plate (46) being hollow, the air inlet of the fan (41) being connected to a first connecting pipe (42), one end of the first connecting pipe (42) being connected to a heater (43), and a plurality of heating wires being distributed inside the heater (43), the heating wires inside the heater (43) being used to heat the air inside the heater and inputting the air into the drum body (2) through the fan (41).

5. A fully drying drum dryer according to claim 4, characterized in that: One end of the heater (43) is connected to a filter (44) via a pipe, one end of the filter (44) is connected to a second connecting pipe (45), one end of the second connecting pipe (45) extends to the inside of the drum body (2), and a filter element is provided inside the filter (44), and the filter element in the filter (44) is used to filter dust in the air entering the heater (43).

6. The drum dryer capable of fully drying according to claim 1, characterized in that: One end of the drum body (2) is provided with a feeder (21), and the feeder (21) is fixed to the frame (1) through a bracket. The other end of the drum body (2) is provided with a discharger (22), and the discharger (22) is fixed to the frame (1) through a bracket. The top of the feeder (21) is connected to a feed port (211), and the bottom end of the feed port (211) extends into the drum body (2). The bottom of the discharger (22) is connected to an outlet for discharging.

7. A fully drying drum dryer according to claim 6, characterized in that: Limiting rails (23) are fixed on both sides of the outside of the roller body (2), and limiting wheels (24) are engaged at the bottom of the limiting rails (23). The limiting wheels (24) are mounted on the surface of the frame (1) through bearing seats. The limiting rails (23) are used to support the roller body (2) and ensure stable operation of the roller body (2).

8. The drum dryer capable of fully drying according to claim 7, characterized in that: A plurality of guide plates (25) are evenly arranged on the inner wall of the drum body (2). The guide plates (25) rotate along with the drum body (2) so that the material rotates to the highest point of the drum body (2) and then falls. A spiral plate (26) is arranged in the drum body (2) near the discharger (22). The spiral plate (26) rotates the material out as the drum body (2) rotates.

9. The drum dryer capable of fully drying according to claim 1, characterized in that: A transmission assembly (3) is also mounted on the frame (1), and the transmission assembly (3) is used to drive the drum body (2) to rotate. The transmission assembly (3) includes a rotary drive member (31), the output end of the rotary drive member (31) is connected to a reduction assembly (32), the output end of the reduction assembly (32) is connected to a driving gear (33), the driving gear (33) is meshed with a driven gear (34), and the driven gear (34) is fixed to the outside of the drum body (2).