A conical dryer for a rotary furnace and a drying method thereof
By designing a conical dryer and circulating steel balls, the problem of fluid materials adhering to the inner wall of the equipment is solved, achieving stable drying and orderly discharge of fluid materials, and improving the equipment's operational stability and drying efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU LIKAVI INTELLIGENT TECH CO LTD
- Filing Date
- 2023-09-08
- Publication Date
- 2026-07-21
AI Technical Summary
In existing drying structures, fluid materials tend to adhere to the inner walls of the equipment, leading to long-term accumulation and affecting the stable operation of the equipment.
The conical dryer design includes a first conical cylinder, a second conical cylinder, a guide plate, and an inner baffle. Combined with the circulation of steel balls and the setting of the exhaust pipe, it ensures that the fluid material is mixed with the steel balls and circulates within the dryer to avoid adhesion. At the same time, orderly discharge and stable drying are achieved through the filter channel and material conveying blades.
This effectively prevents fluid materials from adhering to the inner wall of the dryer, ensuring stable material flow and smooth drying process, thus improving the equipment's operational stability and drying efficiency.
Smart Images
Figure CN117781621B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of rotary kiln dryer technology, and in particular to a conical dryer for rotary kilns and its drying method. Background Technology
[0002] In modern industry, the most frequently used equipment for calcining fluid materials is the rotary kiln. Depending on different needs, rotary kilns vary in type and size. Among the many models of rotary kilns, there is the tube planetary atmosphere rotary kiln. The tube planetary atmosphere rotary kiln is favored by users for its small size, good atmosphere, high alkali resistance, and other characteristics. As an integrated device, the tube planetary atmosphere rotary kiln is composed of many parts, including a drying structure, and is mainly used for drying fluid materials.
[0003] In existing drying structures, fluid materials tend to adhere to the inner walls of the equipment during drying. Over time, this can lead to the accumulation of fluid materials, negatively impacting the overall stable operation. Summary of the Invention
[0004] The purpose of this invention is to provide a conical dryer for rotary kilns and its drying method that can dry fluid materials while preventing the materials from adhering to the inner wall of the equipment, and effectively prevent the materials from accumulating inside the dryer.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A conical dryer for a rotary kiln includes a first conical cylinder, a second conical cylinder fixedly mounted at one end of the first conical cylinder, a guide plate fixedly connected to the inner end face of the second conical cylinder, the guide plate being annular and having a trapezoidal cross-section, a plurality of inner partitions fixedly connected between the guide plate and the inner wall of the second conical cylinder, the cavity between two adjacent inner partitions being configured as a material transfer cavity, a plurality of first filter grooves being provided on the outer surface of the guide plate, a plurality of steel balls being contained in the material transfer cavity and the interior of the first conical cylinder, and a baffle plate fixedly mounted on one end face of the first conical cylinder.
[0007] By adopting the above technical solution, the steel balls inside the dryer can circulate during the dryer's rotation, thereby preventing fluid materials from adhering to the inner wall of the dryer.
[0008] Furthermore, a feed inlet is provided on one end face of the first conical cylinder, and an exhaust pipe is fixedly connected to the end face of the feed inlet. The exhaust pipe communicates with the inside of the feed inlet, and a plurality of second filter channels are provided on the inner side wall of the feed inlet.
[0009] By adopting the above technical solution, stable feeding can be guaranteed, and stable emission of water vapor generated during the drying process can also be guaranteed.
[0010] Furthermore, an inner conical cylinder is sleeved on the outside of the exhaust pipe, and a circular baffle is fixedly connected to one end of the inner conical cylinder, and the circular baffle is fixedly sealed at the port of the guide plate.
[0011] By adopting the above technical solution, fluid materials can be effectively prevented from passing through the port of the guide plate, thus further ensuring the smooth flow of fluid materials.
[0012] Furthermore, a material discharge chamber is provided on the inner side of the guide plate, and the material discharge chamber and the material transfer chamber are connected through a first filter channel.
[0013] By adopting the above technical solution, the separation of the mixture can be effectively achieved, while ensuring the orderly discharge of fluid materials.
[0014] Furthermore, multiple material conveying blades are fixedly connected to the outer surface of the inner conical cylinder. The material conveying blades are inclinedly distributed and arranged in a circular array with the central axis of the exhaust pipe as the rotation axis.
[0015] By adopting the above technical solution, the rotation of the dryer can drive the rotation of the conveying blades, thereby enabling the fluid material to flow effectively.
[0016] Furthermore, a discharge pipe is fixedly installed on the end face of the second conical cylinder, one end of the material conveying blade extends into the interior of the discharge pipe, and the exhaust pipe passes through the central axis of the discharge pipe.
[0017] By adopting the above technical solution, fluid materials can be pushed to move inside the discharge pipe when the conveying blades rotate.
[0018] Furthermore, the drying method is as follows:
[0019] A1: First, the dryer is installed in the designated position and then rotates with the rotation of the rotary kiln. At this time, the fluid material to be dried enters the inside of the feed trough. After passing through the second filter channel, the fluid material enters the inside of the first conical cylinder. Due to the conical structure of the first conical cylinder, the fluid material flowing into the inside of the first conical cylinder enters the inside of the material transfer chamber and mixes with the steel balls.
[0020] A2: As the dryer continues to rotate, the external heating structure raises the temperature inside the first conical cylinder, thereby reducing the moisture in the fluid material. At this time, water vapor passes through the second filter channel and enters the interior of the exhaust pipe, and is discharged from the exhaust pipe.
[0021] A3: When the material transfer chamber containing the material and steel balls is transferred to the top, the steel balls slide down the outer wall of the guide plate into the interior of the first conical cylinder, and then slide down the inner wall of the first conical cylinder into the bottom material transfer chamber. The entire steel ball circulates inside the dryer, which effectively prevents the fluid material from adhering to the inner wall of the dryer.
[0022] A4: When the mixture is transferred to the top, the mixture is filtered by the first filter channel, and the fluid material passes through the first filter channel into the interior of the material discharge chamber, and then flows into the interior of the discharge pipe along the outer surface of the inner conical cylinder;
[0023] A5: Because multiple material conveying blades are fixedly connected to the outer surface of the inner conical cylinder, the material can be effectively moved inside the discharge pipe during the continuous rotation of the dryer.
[0024] By adopting the above technical solution, stable exhaust can be achieved when drying fluid materials, and fluid materials can be prevented from adhering to the inner wall of the dryer during drying.
[0025] In summary, the beneficial technical effects of the present invention are as follows:
[0026] 1. By setting up the first conical cylinder, the second conical cylinder, the guide plate, and the inner baffle, the fluid material entering the first conical cylinder can be mixed with the steel balls. The mixture flows into the material transfer chamber along the inner wall of the first conical cylinder. Then, as the dryer rotates, the mixture in the material transfer chamber can be transferred to the top. At this time, the steel balls rotate and circulate inside the dryer, which can effectively prevent the fluid material from adhering to the inner wall of the dryer. At the same time, when the fluid material flows into the material transfer chamber, the external heating structure can effectively increase the internal temperature of the dryer, thereby drying the fluid material.
[0027] 2. By fixing an inner conical cylinder at the port of the guide plate, the fluid material can be discharged in an orderly manner during separation, ensuring that the dried fluid material can pass through the inside of the dryer in an orderly manner, without causing the fluid material to be squeezed inside the dryer, resulting in high working stability.
[0028] 3. By installing an exhaust pipe inside the dryer, and connecting the exhaust pipe to the inside of the feed trough, the water vapor generated during the drying of fluid materials can be effectively discharged, ensuring stable drying operation of the fluid materials. Attached Figure Description
[0029] Figure 1 This is a first-view perspective view of the three-dimensional structure of the present invention;
[0030] Figure 2This is a second perspective view of the three-dimensional structure of the present invention;
[0031] Figure 3 This is a diagram of the internal structure of the present invention.
[0032] In the figure, 1 is the first conical cylinder; 2 is the baffle plate; 3 is the second conical cylinder; 4 is the discharge pipe; 5 is the exhaust pipe; 6 is the material conveying blade; 7 is the feed trough; 8 is the inner conical cylinder; 9 is the guide plate; 10 is the inner partition plate; 11 is the material transfer chamber; 12 is the first filter channel; 13 is the second filter channel; and 14 is the material discharge chamber. Detailed Implementation
[0033] The present invention will now be described in further detail.
[0034] Reference Figure 1 , Figure 2 , Figure 3 A conical dryer for a rotary kiln includes a first conical cylinder 1, a second conical cylinder 3 fixedly mounted at one end of the first conical cylinder 1, a guide plate 9 fixedly connected to the inner end face of the second conical cylinder 3, the guide plate 9 being annular and having a trapezoidal cross-section, a plurality of inner partitions 10 fixedly connected between the guide plate 9 and the inner wall of the second conical cylinder 3, the cavity between two adjacent inner partitions 10 being configured as a material transfer cavity 11, a plurality of first filter grooves 12 being provided on the outer surface of the guide plate 9, a plurality of steel balls being contained in the material transfer cavity 11 and the interior of the first conical cylinder 1, a baffle plate 2 fixedly mounted at one end face of the first conical cylinder 1, a material discharge cavity 14 being provided on the inner side of the guide plate 9, and the material discharge cavity 14 being connected to the material... The transfer chambers 11 are connected by a first filter channel 12. The arrangement of the first conical cylinder 1, the second conical cylinder 3, the guide plate 9, and the inner partition 10 allows the fluid material entering the first conical cylinder 1 to mix with the steel balls. The mixture flows along the inner wall of the first conical cylinder 1 into the material transfer chamber 11. Then, as the dryer rotates, the mixture inside the material transfer chamber 11 is transferred to the top. At this time, the steel balls rotate and circulate inside the dryer, which can effectively prevent the fluid material from adhering to the inner wall of the dryer. At the same time, when the fluid material flows into the material transfer chamber 11, the external heating structure can effectively increase the internal temperature of the dryer, thereby drying the fluid material.
[0035] Reference Figure 3A feed inlet 7 is provided on one end face of the first conical cylinder 1. An exhaust pipe 5 is fixedly connected to the end face of the feed inlet 7. The exhaust pipe 5 communicates with the inside of the feed inlet 7. Multiple second filter channels 13 are provided on the inner side wall of the feed inlet 7. When the material enters the inside of the feed inlet 7, the fluid material passes through the second filter channels 13 and enters the inside of the first conical cylinder 1, which can ensure the orderly flow of the material. At the same time, the water vapor generated during the drying of the fluid material can pass through the second filter channels 13 and enter the inside of the exhaust pipe 5, and then be efficiently discharged along the exhaust pipe 5, ensuring that the dryer can perform efficient drying operation.
[0036] Reference Figure 2 , Figure 3 An inner conical cylinder 8 is sleeved on the outside of the exhaust pipe 5. A circular baffle is fixedly connected to one end of the inner conical cylinder 8, and the circular baffle is fixedly sealed at the port of the guide plate 9. Multiple material conveying blades 6 are fixedly connected to the outer surface of the inner conical cylinder 8. The material conveying blades 6 are inclinedly distributed and arranged in a circular array with the central axis of the exhaust pipe 5 as the rotation axis. A discharge pipe 4 is fixedly installed on the end face of the second conical cylinder 3. One end of the material conveying blades 6 extends into the interior of the discharge pipe 4, and the exhaust pipe 5 passes through the central axis of the discharge pipe 4. When the dryer rotates, the fluid material tumbles inside the material discharge chamber 14. Since the inner conical cylinder 8 is located inside the material discharge chamber 14, it can ensure that the fluid material flows along the outer surface of the inner conical cylinder 8 and enters the interior of the discharge pipe 4. Since the material conveying blades 6 are inclinedly distributed on the outer surface of the inner conical cylinder 8, the fluid material can be stably and effectively conveyed when the dryer rotates.
[0037] Working principle: First, the dryer is installed in the designated position and then rotates along with the rotary kiln. The fluid material to be dried enters the feed trough 7, passes through the second filter channel 13, and then enters the first conical cylinder 1. Due to the conical structure of the first conical cylinder 1, the fluid material flowing into it enters the material transfer chamber 11 and mixes with the steel balls. As the dryer continues to rotate, the external heating structure raises the temperature inside the first conical cylinder 1, thereby reducing the moisture content of the fluid material. Water vapor then passes through the second filter channel 13 and enters the exhaust pipe 5, and is discharged from the exhaust pipe 5. When the material transfer chamber 11, containing the material and steel balls, reaches the top... During the process, the steel ball slides down the outer wall of the guide plate 9 into the interior of the first conical cylinder 1, and then slides down the inner wall of the first conical cylinder 1 into the material transfer chamber 11 at the bottom. The entire steel ball circulates inside the dryer, which effectively prevents the fluid material from adhering to the inner wall of the dryer. When the mixture is transferred to the top, the mixture is filtered by the first filter channel 12, and the fluid material passes through the first filter channel 12 into the interior of the material discharge chamber 14. Then, it flows into the interior of the discharge pipe 4 along the outer surface of the inner conical cylinder 8. Since multiple material conveying blades 6 are fixedly connected to the outer surface of the inner conical cylinder 8, the material can be effectively moved inside the discharge pipe 4 during the continuous rotation of the dryer.
[0038] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.
Claims
1. A conical dryer for a rotary kiln, comprising a first conical cylinder (1), characterized in that: A second conical cylinder (3) is fixedly installed at one end of the first conical cylinder (1). A guide plate (9) is fixedly connected to the inner end face of the second conical cylinder (3). The guide plate (9) is annular and has a trapezoidal cross-section. Multiple inner partitions (10) are fixedly connected between the guide plate (9) and the inner wall of the second conical cylinder (3). The cavity between two adjacent inner partitions (10) is set as a material transfer cavity (11). Multiple first filter channels (12) are provided on the outer surface of the guide plate (9). Multiple steel balls are filled inside the material transfer cavity (11) and the first conical cylinder (1). A baffle plate (2) is fixedly installed on one end face of the first conical cylinder (1). A feed inlet (7) is provided on one end face of the first conical cylinder (1). An exhaust pipe is fixedly connected to the end face of the feed inlet (7). (5) The exhaust pipe (5) is connected to the inside of the feed trough (7). Multiple second filter channels (13) are provided on the inner side wall of the feed trough (7). An inner conical cylinder (8) is sleeved on the outside of the exhaust pipe (5). A circular baffle is fixedly connected to one end of the inner conical cylinder (8), and the circular baffle is fixedly sealed at the port of the guide plate (9). Multiple material conveying blades (6) are fixedly connected to the outer surface of the inner conical cylinder (8). The material conveying blades (6) are inclinedly distributed, and the multiple material conveying blades (6) are arranged in a circular array with the central axis of the exhaust pipe (5) as the rotation axis. A discharge pipe (4) is fixedly installed on the end face of the second conical cylinder (3). One end of the material conveying blade (6) extends into the interior of the discharge pipe (4), and the exhaust pipe (5) passes through the central axis of the discharge pipe (4).
2. The conical dryer for a rotary kiln according to claim 1, characterized in that: The inner side of the guide plate (9) is provided with a material discharge chamber (14), and the material discharge chamber (14) and the material transfer chamber (11) are connected through the first filter channel (12).
3. A conical dryer for a rotary kiln as described in claim 2, characterized in that: The drying method is as follows: A1: First, the dryer is installed in the designated position and then rotates with the rotation of the rotary kiln. At this time, the fluid material to be dried enters the inside of the feed trough (7). After passing through the second filter channel (13), the fluid material enters the inside of the first conical cylinder (1). Due to the conical structure of the first conical cylinder (1), the fluid material flowing into the inside of the first conical cylinder (1) enters the inside of the material transfer chamber (11) and mixes with the steel balls. A2: As the dryer continues to rotate, the external heating structure raises the temperature inside the first conical cylinder (1), thereby reducing the moisture in the fluid material. At this time, water vapor passes through the second filter channel (13) and enters the interior of the exhaust pipe (5), and is discharged from the exhaust pipe (5). A3: When the material transfer chamber (11) containing the material and steel balls is transferred to the top, the steel balls slide down the outer wall of the guide plate (9) into the interior of the first conical cylinder (1), and slide down the inner wall of the first conical cylinder (1) into the interior of the bottom material transfer chamber (11). The entire steel ball circulates inside the dryer, which can effectively prevent the fluid material from adhering to the inner wall of the dryer. A4: When the mixture is transferred to the top, the mixture is filtered by the first filter channel (12), and the fluid material passes through the first filter channel (12) into the interior of the material discharge chamber (14), and then flows into the interior of the discharge pipe (4) along the outer surface of the inner conical cylinder (8); A5: Since multiple material conveying blades (6) are fixedly connected to the outer surface of the inner conical cylinder (8), the material can be effectively moved inside the discharge pipe (4) during the continuous rotation of the dryer.