High-temperature-resistant rotary discharger
The high-temperature resistant rotary unloader, with its double-layer design and cooling fan, solves the problems of shell deformation and wear of traditional rotary unloaders in high-temperature and high-dust environments, achieving long service life and stable operation of the equipment.
Patent Information
- Application Number
- CN202520062234.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-12
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-01-12
AI Technical Summary
Traditional rotary unloaders are prone to shell deformation, leakage and jamming under the high temperature and high dust conditions of cement plants, which reduces the service life of the equipment, increases costs due to frequent maintenance, and affects the continuous operation of the production line.
The shell features a double-layer design, with a heat insulation layer between the outer and inner shells. The power motor drives the hollow transmission rod and rotor blades, which are cooled by a cooling fan. The transmission rod and blades have a hollow internal structure, and the fan and cooling fan are used for heat dissipation.
It effectively prevents shell deformation and jamming, reduces dust intrusion, extends equipment life, reduces maintenance costs, and ensures continuous operation of the production line.
Smart Images
Figure CN223619656U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of high-temperature resistant rotary unloaders, and more specifically, to high-temperature resistant rotary unloaders. Background Technology
[0002] In the cement plant production process, from raw material grinding to finished product packaging, a large amount of high-temperature dusty gas and materials are generated in multiple stages. As a key component of the conveying system, the rotary unloader is used for quantitative unloading and isolating upstream and downstream air pressure. Traditional rotary unloaders are difficult to adapt to the harsh high-temperature and high-dust conditions of cement plants.
[0003] High temperatures can easily cause deformation of the unloader's housing, affecting the gap between the internal rotor and the housing, leading to leakage and jamming. The intrusion of a large amount of dust will exacerbate component wear and reduce the service life of the equipment. Frequent maintenance not only increases costs but also affects the continuous operation of the production line, thus presenting shortcomings. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a high-temperature resistant rotary unloader, which aims to improve the problem that high temperatures can easily cause deformation of the unloader's shell, affecting the gap between the internal rotor and the shell, leading to leakage and jamming. The intrusion of a large amount of dust will aggravate component wear, reduce the service life of the equipment, and frequent maintenance will not only increase costs but also affect the continuous operation of the production line.
[0005] This application is implemented as follows:
[0006] This application provides a high-temperature resistant rotary unloader, including:
[0007] The housing adopts a double-layer design, comprising an outer shell and an inner shell, with a heat insulation layer provided between the outer shell and the inner shell. The outer shell is made of high-temperature resistant carbon steel, and the inner shell is made of high-temperature resistant stainless steel. The heat insulation layer is made of ceramic fiber heat insulation cotton.
[0008] A power motor is disposed on the outside of the housing. The output end of the power motor is connected to a transmission rod. The transmission rod is rotatably mounted inside the housing and passes through the heat insulation layer and the inner shell in sequence. Rotor blades are fixedly connected to the transmission rod inside the inner shell. The transmission rod and the rotor blades are both configured as a hollow structure. A fan is disposed at the end of the transmission rod near the power motor.
[0009] An air cooler is provided, which is located on one side of the power motor, and the air outlet of the air cooler is configured to cooperate with the transmission rod.
[0010] In one embodiment of this application, the outer shell, the heat insulation layer, and the inner shell together have a flared opening on the side wall near the power motor, and the outer shell, the heat insulation layer, and the inner shell together have a rotating hole on the side wall away from the power motor. A fixing seat is fixedly connected to the inner wall of the rotating hole, and the fixing seat is rotatably sleeved on the end of the transmission rod away from the power motor.
[0011] In one embodiment of this application, a dust cover is fixedly connected to the outer casing near the rotating hole, the dust cover is rotatably sleeved on the end of the transmission rod away from the power motor, and a dustproof plate is installed on the side wall of the dust cover.
[0012] In one embodiment of this application, the top of the inner shell is connected to a rectangular connection port.
[0013] In one embodiment of this application, the inner shell has an annular cavity on its side wall. The outer port of the inner cavity is connected to the horn mouth and the rotating hole, respectively. A first sealing ring is fixedly installed on the inner port of the inner cavity. The first sealing ring is rotatably sleeved on the outside of the transmission rod. Two first sealing rings are disposed at both ends of the rotor blade.
[0014] In one embodiment of this application, two support rods are symmetrically fixedly connected to the outer wall of the housing near the flared opening. The ends of the two support rods are jointly fixedly connected to a sealing sleeve. A second sealing ring is fixedly installed inside both ends of the sealing sleeve. The second sealing ring is rotatably sleeved on the end of the transmission rod.
[0015] In one embodiment of this application, one side of the sealing sleeve is connected to the air outlet of the air cooler via a pipe.
[0016] In one embodiment of this application, the fan is fixedly sleeved on the outside of the transmission rod, and the fan is disposed inside the horn opening.
[0017] In one embodiment of this application, the transmission rod is provided with a plurality of through holes in a ring shape inside the sealing sleeve, and the through holes are connected to the interior of the sealing sleeve.
[0018] In one embodiment of this application, the end of the transmission rod is connected to the output shaft of the power motor via a coupling.
[0019] The beneficial effects of this application are as follows: A flared opening is formed on the side walls of the outer shell, the insulation layer, and the inner shell. An inner cavity is formed on the side wall of the insulation layer. A drive rod is rotated by a motor. A fan is installed inside the flared opening on the drive rod. The air generated by the fan can dissipate heat from the outer wall of the inner shell through the inner cavity. The heat is then blown out from the other side of the outer shell. The drive rod and rotor blades have a hollow internal structure. A cool air blower can transfer cold air to the sealing sleeve and then blow it directly into the drive rod and rotor blades through the through-holes, thus cooling the drive rod and rotor blades. This not only cools the shell, preventing shell deformation from affecting the gap between the internal rotor blades and the inner shell, thus avoiding jamming and leakage, but also prevents the drive rod and rotor blades from generating excessive heat during operation. This increases the overall service life of the equipment, reduces maintenance costs, and avoids affecting the production line's progress. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0021] Figure 1 A schematic diagram of the outer casing is provided for embodiments of this application;
[0022] Figure 2 A schematic diagram of the fan structure is provided for the embodiments of this application;
[0023] Figure 3 A structural schematic diagram of the inner shell cross-section is provided for the embodiments of this application;
[0024] Figure 4 A structural schematic diagram of the inner shell cross-section is provided for the embodiments of this application;
[0025] Figure 5 Provided for the implementation of this application Figure 4 A structural diagram of the central A section of the defense force;
[0026] Figure 6 A schematic diagram of the rotor blade structure is provided for the embodiments of this application.
[0027] In the diagram: 1. Outer shell; 2. Power motor; 3. Air cooler; 4. Dust cover; 5. Dustproof plate; 6. Heat insulation layer; 7. Inner shell; 8. Rectangular connection port; 9. Flared mouth; 10. Sealing sleeve; 11. Fan; 12. Transmission rod; 13. Rotor blades; 14. Inner cavity; 15. Fixing seat; 16. First sealing ring; 17. Coupling; 18. Through hole; 19. Second sealing ring; 20. Support rod. Detailed Implementation
[0028] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0029] like Figures 1-6 As shown, the high-temperature resistant rotary unloader according to an embodiment of this application includes:
[0030] The shell adopts a double-layer design, consisting of an outer shell 1 and an inner shell 7, with a heat insulation layer 6 between them. The outer shell 1 is made of high-temperature resistant carbon steel, specifically Q345R high-temperature resistant carbon steel, formed by casting process, possessing high strength and able to withstand external impact and thermal stress in high-temperature environments. The inner shell 7 is made of high-temperature resistant stainless steel, specifically 316 high-temperature resistant stainless steel, which, due to its good corrosion resistance and smooth surface, reduces material adhesion and extends its service life while directly contacting materials. The heat insulation layer 6 is made of ceramic fiber heat insulation cotton and filled with ceramic fiber heat insulation cotton. The insulation cotton is tightly filled, which greatly slows down the conduction of heat from the inner layer to the outer layer, making the external temperature of the equipment suitable and reducing the thermal impact on surrounding equipment and operators. The outer shell 1, the insulation layer 6, and the inner shell 7 have a flared opening 9 on the side wall near the power motor 2. The outer shell 1, the insulation layer 6, and the inner shell 7 have a rotating hole on the side wall away from the power motor 2. The inner wall of the rotating hole is fixedly connected to a fixing seat 15, which is rotatably sleeved on the end of the transmission rod 12 away from the power motor 2. The outer shell 1 has a dust cover 4 fixedly connected to the rotating hole, which is rotatably sleeved on the end of the transmission rod 12 away from the power motor 2. The side wall of the dust cover 4 is equipped with a dustproof plate 5. The top of the inner shell 7 is connected to a rectangular connection port 8. The side wall of the inner shell 7 has an annular inner cavity 14. The outer port of 4 is connected to the horn mouth 9 and the rotating hole respectively. The inner port of the inner cavity 14 is fixedly installed with a first sealing ring 16. The first sealing ring 16 is a high temperature resistant graphite sealing ring to strictly prevent dust from entering the inner cavity 14. The first sealing ring 16 is rotatably sleeved on the outside of the transmission rod 12. Two first sealing rings 16 are set at both ends of the rotor blade 13. Two support rods 20 are symmetrically fixedly connected to the outer wall of the outer shell 1 near the horn mouth 9. The ends of the two support rods 20 are fixedly connected to a sealing sleeve 10. The two ends of the sealing sleeve 10 are fixedly installed with a second sealing ring 19. The second sealing ring 19 is rotatably sleeved on the end of the transmission rod 12. One side of the sealing sleeve 10 is connected to the air outlet of the air cooler 3 through a pipe.
[0031] The power motor 2 is a YB series high-temperature resistant explosion-proof motor, suitable for the dusty and high-temperature environment of cement plants, preventing motor failures caused by high temperature and dust, and ensuring more stable output. The power motor 2 is located on the outside of the outer shell 1. The output end of the power motor 2 is connected to a transmission rod 12, which is forged as a whole from high-temperature resistant GH4169 alloy steel to ensure high strength and toughness. The transmission rod 12 is rotatably installed inside the outer shell 1 and passes through the heat insulation layer 6 and the inner shell 7 in sequence. The transmission rod 12 is fixedly connected to the rotor blades 13 inside the inner shell 7. The surface of the rotor blades 13 is coated with a high-temperature ceramic coating with high hardness. It is resistant to high temperature and wear, and under the dust scouring of cement plants, it greatly protects the rotor blade 13 base body, reduces wear, and maintains the long-term stable operation of the transmission rod 12. The transmission rod 12 and the rotor blade 13 are both set as hollow structures. A fan 11 is set at the end of the transmission rod 12 near the power motor 2. The fan 11 is fixedly sleeved on the outside of the transmission rod 12 and is set in the horn mouth 9. The transmission rod 12 is located inside the sealing sleeve 10 with multiple through holes 18 in a ring shape. The through holes 18 are connected to the inside of the sealing sleeve 10. The end of the transmission rod 12 is connected to the output shaft of the power motor 2 through the coupling 17.
[0032] The air cooler 3 is located on one side of the power motor 2. The air outlet of the air cooler 3 is configured to cooperate with the transmission rod 12. The air cooler 3 can transfer cold air to the sealing sleeve 10, and then blow it directly into the transmission rod 12 and rotor blades 13 through the through hole 18 to cool down the transmission rod 12 and rotor blades 13, thus avoiding the generation of a large amount of heat during the operation of the transmission rod 12 and rotor blades 13.
[0033] Specifically, the working principle of this high-temperature resistant rotary unloader is as follows: A flared opening 9 is formed on the side walls of the outer shell 1, the insulation layer 6, and the inner shell 7. An inner cavity 14 is formed on the side wall of the insulation layer 6. A drive rod 12 is driven to rotate by a power motor 2. A fan 11 is installed inside the flared opening 9 on the drive rod 12. The air generated by the fan 11 can dissipate heat from the outer wall of the inner shell 7 through the inner cavity 14. The heat is blown out from the other side of the outer shell 1. The drive rod 12 and rotor blades 13 have a hollow internal structure. A cool air blower 3 can transfer cool air to the sealing sleeve 10, and then blow it directly into the drive rod 12 and rotor blades 13 through the through hole 18, thus cooling the drive rod 12 and rotor blades 13. This not only cools the shell, preventing shell deformation from affecting the gap between the internal rotor blades 13 and the inner shell 7, leading to jamming and leakage, but also prevents the drive rod 12 and rotor blades 13 from generating excessive heat during operation, thereby increasing the overall service life of the equipment, reducing maintenance costs, and avoiding impacts on the production line's progress.
[0034] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
Claims
1. A high-temperature resistant rotary unloader, characterized in that, include: The housing adopts a double-layer design. The housing includes an outer shell (1) and an inner shell (7). A heat insulation layer (6) is provided between the outer shell (1) and the inner shell (7). The outer shell (1) is made of high-temperature resistant carbon steel, the inner shell (7) is made of high-temperature resistant stainless steel, and the heat insulation layer (6) is made of ceramic fiber heat insulation cotton. A power motor (2) is disposed on the outside of the outer shell (1). The output end of the power motor (2) is connected to a transmission rod (12). The transmission rod (12) is rotatably installed inside the outer shell (1) and passes through the heat insulation layer (6) and the inner shell (7) in sequence. The transmission rod (12) is fixedly connected to a rotor blade (13) inside the inner shell (7). The transmission rod (12) and the rotor blade (13) are both configured as a hollow structure. A fan (11) is provided at the end of the transmission rod (12) near the power motor (2). A cooler (3) is provided on one side of the power motor (2), and the air outlet of the cooler (3) is configured to cooperate with the transmission rod (12).
2. The high-temperature resistant rotary unloader according to claim 1, characterized in that, The outer shell (1), the heat insulation layer (6), and the inner shell (7) together have a flared opening (9) on the side wall near the power motor (2). The outer shell (1), the heat insulation layer (6), and the inner shell (7) together have a rotating hole on the side wall away from the power motor (2). A fixing seat (15) is fixedly connected to the inner wall of the rotating hole. The fixing seat (15) is rotatably sleeved on the end of the transmission rod (12) away from the power motor (2).
3. The high-temperature resistant rotary unloader according to claim 2, characterized in that, A dust cover (4) is fixedly connected to the outer shell (1) near the rotating hole. The dust cover (4) is rotatably sleeved on the end of the transmission rod (12) away from the power motor (2). A dustproof plate (5) is installed on the side wall of the dust cover (4).
4. The high-temperature resistant rotary unloader according to claim 3, characterized in that, The top of the inner shell (7) is connected to a rectangular connection port (8).
5. The high-temperature resistant rotary unloader according to claim 4, characterized in that, The inner shell (7) has an annular cavity (14) on its side wall. The outer port of the inner cavity (14) is connected to the horn mouth (9) and the rotating hole respectively. The inner port of the inner cavity (14) is fixedly installed with a first sealing ring (16). The first sealing ring (16) is rotatably sleeved on the outside of the transmission rod (12). The two first sealing rings (16) are located at both ends of the rotor blade (13).
6. The high-temperature resistant rotary unloader according to claim 5, characterized in that, Two support rods (20) are symmetrically fixedly connected to the outer wall of the outer shell (1) near the horn mouth (9). The ends of the two support rods (20) are fixedly connected to a sealing sleeve (10). A second sealing ring (19) is fixedly installed inside both ends of the sealing sleeve (10). The second sealing ring (19) is rotatably sleeved on the end of the transmission rod (12).
7. The high-temperature resistant rotary unloader according to claim 6, characterized in that, One side of the sealing sleeve (10) is connected to the air outlet of the air cooler (3) via a pipe.
8. The high-temperature resistant rotary unloader according to claim 7, characterized in that, The fan (11) is fixedly sleeved on the outside of the transmission rod (12), and the fan (11) is disposed inside the horn (9).
9. The high-temperature resistant rotary unloader according to claim 8, characterized in that, The transmission rod (12) is located inside the sealing sleeve (10) and has multiple through holes (18) in an annular shape. The through holes (18) are connected to the interior of the sealing sleeve (10).
10. The high-temperature resistant rotary unloader according to claim 9, characterized in that, The end of the transmission rod (12) is connected to the output shaft of the power motor (2) via a coupling (17).