Turning conveying device of lyocell fiber dryer and fiber dryer
By introducing a turning conveyor into the lyocell fiber drying equipment, the problems of equipment installation limitations and fiber adhesion were solved, achieving a highly efficient fiber drying effect.
Patent Information
- Application Number
- CN202423071364.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Lyocell fiber drying equipment is relatively large, and its installation is limited by the building area. Furthermore, fibers tend to stick together and accumulate at bends, affecting drying efficiency.
By employing a turning conveyor device, the drying equipment is divided into multiple parallel zones, which are connected by components such as a turning conveyor, a front feeder, and a swing bucket to ensure uniform fiber transport, prevent sticking, and improve drying efficiency.
Achieve efficient fiber drying in a limited space, reduce equipment length, avoid fiber sticking, and increase the drying rate of subsequent drying zones.
Smart Images
Figure CN223550855U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fiber preparation technology, specifically providing a turning conveyor device for a lyocell fiber dryer and a fiber dryer. Background Technology
[0002] Lyocell fiber, hailed as a new type of green fiber for the 21st century, is a highly crystalline, highly oriented cellulose fiber with low energy consumption, no pollution, and biodegradability during production. It boasts superior performance and a wide range of applications. Drying is an essential process in the production of lyocell fiber. The dryer uses steam to heat air, removing moisture from the fiber and reducing its moisture regain from 120% to approximately 11%.
[0003] In existing technologies, lyocell fiber drying equipment differs from traditional drying equipment for beans, feed, and cotton, which can be integrated into a limited space for reciprocating drying. Lyocell fiber drying equipment is relatively large, employing linear drying for high efficiency, with its machine length often exceeding 100 meters. This means that the installation of lyocell fiber drying equipment is highly likely to be limited by building space, making traditional linear conveyor installation methods unsuitable. Furthermore, to achieve efficient drying of lyocell fibers, the equipment incorporates multiple drying zones with different conveyor speeds. If simple conveyor belts are used to connect these zones with bends, the fibers at the bends are prone to sticking and accumulating, affecting the drying efficiency of subsequent zones entering the different speed zones. Therefore, installing a lyocell fiber dryer within a limited space while ensuring efficient fiber drying presents a significant challenge. Utility Model Content
[0004] To address the aforementioned issues, this invention provides a turning conveyor device for a lyocell fiber dryer. By setting up a turning conveyor structure that can uniformly transport fibers, fiber accumulation during turning is avoided, thereby improving subsequent drying efficiency.
[0005] The technical solution of this utility model is as follows:
[0006] A turning conveyor for a lyocell fiber dryer is provided, located between the front drying zone and the rear drying zone of the lyocell fiber dryer. It includes a turning conveyor, a front feeder, and a swivel hopper. The turning conveyor is perpendicular to the front feeder. Fibers from the front drying zone are conveyed to the turning conveyor via the front feeder and then fed into the rear drying zone via the swivel hopper.
[0007] In this solution, when there is insufficient length in the factory to install a traditional linear lyocell fiber drying device, the traditional drying equipment can be divided into multiple parallel drying zones, with these zones connected by this device. Preferably, it is divided into two parallel front drying zones and a rear drying zone, connected by this device. This directly halves the required length. After exiting the front drying zone, the lyocell fibers are fed onto a turning conveyor via a front feeder. The front feeder disperses the partially dried fibers, preventing them from sticking together as they enter the turning conveyor. Furthermore, since the conveying direction of the turning conveyor is perpendicular to that of the front feeder, the fibers fed onto the turning conveyor will not be evenly distributed on its belt. Instead, the fibers exiting the turning conveyor are spread as evenly as possible in the rear drying zone by the swing hopper, thus improving the fiber drying rate in the rear drying zone.
[0008] Preferably, the turning conveyor includes a horizontal conveying section and an inclined conveying section connected together. In this design, since the conveying direction of the turning conveyor is perpendicular to the conveying directions of the front feeder and the rear feeder, to prevent the fibers fed onto the turning conveyor from rolling off in other directions, a horizontal conveying section is provided to catch the fibers output by the front feeder, while the inclined conveying section lifts the fibers upwards for transport, facilitating their subsequent transport to the drying area after rain.
[0009] Preferably, the turning conveyor is equipped with a conveyor belt inside and a closed shell outside, and the closed shell is equipped with an exhaust window at the highest point of the inclined conveyor section.
[0010] In this scheme, since the turning conveyor is not equipped with a drying and heating device, a closed shell is set up to prevent the fiber temperature from dropping significantly in the turning conveyor and to prevent external impurities from mixing into the fiber. This isolates the conveyor belt inside the turning conveyor from the outside environment. At the same time, since the moisture content of the fiber entering the turning conveyor is still relatively high and there is also hot steam in the air inside the closed shell, due to the physical characteristic of hot air flowing upward, an exhaust window is set at the highest point of the inclined conveyor section to discharge the hot steam and prevent the hot air from condensing into water droplets and falling back onto the fiber, thus affecting the fiber drying efficiency.
[0011] Preferably, the system also includes a post-feeder, through which the fibers output from the swivel hopper are processed before entering the post-drying zone. The swivel hopper can only initially disperse the fibers, and because the fibers rely on their own gravity to fall through the swivel hopper, and the conveying speed in the post-drying zone is much faster, the fibers entering the post-drying zone may be discontinuous and slightly piled up. The post-feeder further disperses the fibers, making them evenly distributed and improving the drying efficiency of the post-drying zone.
[0012] Preferably, a baffle structure is provided on one side of the horizontal conveying section, and a scraper structure is provided on the other side. Since the fibers output from the front feeder fall onto the turning conveyor in a parabolic manner, the baffle structure can prevent the falling fibers from deviating or falling into the gaps of the equipment and causing cotton jamming, while the scraper structure can also scrape off the fibers that stick to the front feeder.
[0013] Preferably, the barrier structure includes a first support column disposed on one side of the turning conveyor, a positive baffle is rotatably disposed on the first support column, and an adjustable baffle and a leak-proof bending plate are detachably disposed at the upper and lower ends of the positive baffle, respectively, and the arc-shaped bottom of the leak-proof bending plate contacts the surface of the transmission belt in the turning conveyor.
[0014] In this solution, since the lyocell fiber drying equipment installed under different installation conditions may not only have a front drying zone and a rear drying zone, but may also have more zones, and the rotation speed of each zone will be different, the orientation of the grid structure can be adjusted by rotating the baffle, and the height of the grid structure can be increased by raising the baffle, so that the grid structure can be adapted to the front feeder with different conveying speeds.
[0015] Preferably, the first support column is a telescopic column equipped with a positioning mechanism. By adjusting the telescopic column's extension, the height of the grid structure is adjusted, ensuring that the arc-shaped bottom of the anti-leakage bend plate contacts the surface of the transmission belt in the turning conveyor, thus preventing fiber misalignment.
[0016] Preferably, the scraper structure includes a second support column disposed on the other side of the turning conveyor, a mounting plate disposed on the second support column, a scraper detachably disposed on the upper end of the mounting plate, and a leak-proof bending plate detachably disposed on the lower end of the mounting plate. The upper end of the scraper contacts the conveyor belt of the front feeder, and the arc-shaped bottom of the leak-proof bending plate contacts the surface of the transmission belt in the turning conveyor.
[0017] In this design, the overall height of the scraper structure is adjustable so that the scraper can contact the conveyor belt of the front feeder under various conditions, effectively scraping off the adhered fibers. It also ensures that the bottom of the anti-leakage bending plate is always in contact with the surface of the transmission belt in the turning conveyor, thus preventing the fibers from running off-center.
[0018] A lyocell fiber dryer includes a turning conveyor device and multiple parallel drying zones, which are connected to each other via the turning conveyor device. Compared to existing straight-line dryers, the dryer provided in this embodiment overcomes the problem of fiber adhesion and accumulation during turning conveying by relying on the turning conveyor device, allowing the dryer to be bent and greatly saving installation space.
[0019] The beneficial effects of this utility model are:
[0020] When there is insufficient length in the factory to install a traditional linear lyocell fiber drying equipment, the traditional equipment can be divided into two parallel front drying zones and a rear drying zone, connected by this device. This shortens the required length of the equipment. After the lyocell fibers are output from the front drying zone, they are fed onto a turning conveyor via a front feeder. The front feeder breaks up the initially dried fibers, preventing them from sticking together as they enter the turning conveyor. Since the conveying direction of the turning conveyor is perpendicular to that of the front feeder, the fibers fed onto the turning conveyor will not be evenly distributed on the conveyor belt. Instead, the fibers output from the turning conveyor are spread as evenly as possible in the rear drying zone by the operation of the swing bucket, thereby improving the fiber drying rate in the rear drying zone. Attached Figure Description
[0021] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a front view of the present invention;
[0023] Figure 2 This is a top view of the present invention;
[0024] Figure 3 This is a cross-sectional schematic diagram of the turning conveyor of this utility model.
[0025] In the above figures, the corresponding reference numerals are as follows:
[0026] 1-Turning conveyor, 11-Horizontal conveying section, 12-Inclined conveying section, 13-Enclosed shell, 14-Exhaust window, 15-Grid structure, 151-First support column, 152-Positive baffle, 153-Height adjustment baffle, 154-Leak-proof bending plate, 16-Scraper structure, 161-Second support column, 162-Mounting plate, 163-Scraper, 2-Front feeder, 3-Swing wire bucket, 4-Rear feeder, 5-Frame. Detailed Implementation
[0027] The technical solution of the present invention will be clearly and completely described in conjunction with the accompanying drawings and through specific implementation methods of the embodiments of the present invention.
[0028] Example 1:
[0029] like Figure 1 and Figure 2The diagram illustrates a turning conveyor device for a lyocell fiber dryer, positioned between the front and rear drying zones. It includes a turning conveyor 1, a front feeder 2, and a swivel hopper 3. The turning conveyor 1 is perpendicular to the front feeder 2. Fibers from the front drying zone are conveyed to the turning conveyor 1 via the front feeder 2 and then fed into the rear drying zone via the swivel hopper 3. The turning conveyor 1 contains a conveyor belt comprising a connected horizontal conveying section 11 and an inclined conveying section 12.
[0030] It should be noted that the number of stages in the Lyocell fiber drying equipment installed under different installation conditions varies. This embodiment only describes the Lyocell fiber drying equipment divided into front and rear drying zones. In reality, there may be more zones, but regardless of the number of zones, the connection structure between adjacent zones is the same as that in this embodiment.
[0031] Specifically, such as Figure 2 As shown, the arrows represent the conveying direction of lyocell fibers. The front feeder is equipped with a fiber equalization roller. The fibers fed into the feeder are dispersed as evenly as possible by the fiber equalization roller and then fall into the conveyor belt of the turning conveyor 1 for conveying. The inclined conveyor section 12 lifts the fibers to a higher position and transports them into the swing bucket 3. The swing direction of the swing bucket 3 is perpendicular to the conveying direction of the rear feeder 4, so that the fibers are evenly distributed in the rear drying zone in a curved shape.
[0032] In this embodiment, the front drying zone and the rear drying zone are connected by a turning conveyor supported by frame 5, directly reducing the length of the space required for the drying equipment installation by half. After the Lyocell fibers are output from the front drying zone, they are fed onto the turning conveyor 1 via the front feeder 2. The front feeder 2 disperses the initially dried fibers, preventing them from sticking together as they enter the turning conveyor 1. Furthermore, since the conveying direction of the turning conveyor 1 is perpendicular to that of the front feeder 2, the fibers input to the turning conveyor 1 will not be evenly distributed on its conveyor belt. Instead, the fibers output from the turning conveyor 1 are evenly distributed in the rear drying zone as much as possible under the operation of the swing hopper 3, thereby improving the fiber drying rate in the rear drying zone.
[0033] Furthermore, the fibers output through the swivel hopper 3 are then fed to the post-drying zone via the post-feeder 4. The post-feeder is also equipped with a fiber-averaging roller to further disperse the fibers, ensuring that the fibers are evenly distributed and improving the drying efficiency of the post-drying zone.
[0034] Furthermore, since the turning conveyor 1 is not equipped with a drying and heating device, in order to avoid a significant drop in fiber temperature in the turning conveyor 1 and to prevent external impurities from mixing into the fiber, the turning conveyor 1 is equipped with a closed shell 13. At the same time, since the moisture content of the fiber entering the turning conveyor 1 is still relatively high and there is also hot steam in the air in the closed shell 13, due to the physical characteristic of hot air flowing upward, an exhaust window 14 is provided at the highest point of the inclined conveying section 12 to discharge the hot steam and prevent the hot air from condensing into water droplets and falling back onto the fiber, thus affecting the fiber drying efficiency.
[0035] Example 2:
[0036] Since the fibers output from the front feeder 2 fall onto the turning conveyor 1 in a parabolic manner, and the fibers containing moisture are prone to sticking together, based on Example 1, as... Figure 3 As shown, a baffle structure 15 is provided on one side of the horizontal conveying section 11, and a scraper structure 16 is provided on the other side. The baffle structure 15 can prevent the falling fibers from deviating and falling into the gaps of the equipment, causing cotton jamming, while the scraper structure 16 can also scrape off the fibers stuck to the front feeder 2.
[0037] Specifically, the baffle structure 15 includes a first support column disposed on one side of the turning conveyor 1. A positive baffle 152 is rotatably disposed on the first support column. An adjustable baffle 153 and a leak-proof bend 154 are detachably disposed on the upper and lower ends of the positive baffle 152, respectively. The arc-shaped bottom of the leak-proof bend 154 contacts the surface of the transmission belt in the turning conveyor 1. Preferably, the positive baffle 152, the adjustable baffle 153, and the leak-proof bend 154 are all provided with multiple matching mounting holes, which are detachably connected to each other by bolts.
[0038] It should be noted that in this embodiment, the drying equipment for lyocell fiber is only divided into a front drying zone and a rear drying zone, so only one device of this application is needed. However, different factory areas are divided differently, and their drying equipment may have more zones. The rotation speed of each zone will be different. By rotating the positive baffle 152, the orientation of the grid structure 15 is adjusted, and the height of the grid structure 15 is increased by raising the baffle 153. The first support column is a telescopic column with a positioning mechanism. By adjusting the telescopic column, the height of the grid structure 15 is adjusted so that the arc-shaped bottom of the anti-leakage bending plate 154 can contact the surface of the transmission belt in the turning conveyor 1, so as to prevent the fiber from running off-center, and thus enable the grid structure 15 to adapt to the front feeder 2 with different conveying speeds.
[0039] Furthermore, the scraper structure 16 includes a second support column 161 disposed on the other side of the turning conveyor 1. A mounting plate 162 is mounted on the second support column 161. A scraper 163 is detachably mounted on the upper end of the mounting plate 162, and a leak-proof curved plate 154 is detachably mounted on the lower end of the mounting plate 162. The upper end of the scraper 163 contacts the conveyor belt of the front feeder 2, and the arc-shaped bottom of the leak-proof curved plate 154 contacts the surface of the transmission belt in the turning conveyor 1. Preferably, the mounting plate 162, scraper 163, and leak-proof curved plate 154 are all provided with multiple matching mounting holes, and are detachably connected to each other by bolts. The overall height of the scraper structure 16 is adjustable so that the scraper 163 can contact the conveyor belt of the front feeder 2 under various conditions, effectively scraping off adhered fibers, and ensuring that the bottom of the leak-proof curved plate 154 always contacts the surface of the transmission belt in the turning conveyor 1, thus preventing fiber deviation.
[0040] Example 3:
[0041] This embodiment provides a lyocell fiber dryer, which differs from existing linear dryers. In this embodiment, the lyocell fiber dryer is divided into multiple parallel drying zones. Depending on the actual factory installation conditions, at least two sections are configured, with the conveying directions of the two drying zones opposite. These sections are connected by the turning conveyor devices provided in Embodiments 1 and 2 above. Specifically, the end of the front drying zone is connected to the front of the rear drying zone via the turning conveyor device, and the lyocell fibers are conveyed accordingly. When three sections are configured, the conveying direction of the first drying zone is opposite to that of the second drying zone and the same as that of the third drying zone. Each drying zone is connected by a turning conveyor device, and so on. Compared to existing linear dryers, the dryer provided in this embodiment overcomes the problem of fiber adhesion and accumulation during turning conveyors by relying on the turning conveyor device, allowing the dryer to be bent and greatly saving installation space.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A turning conveyor device for a lyocell fiber dryer, characterized in that: Located between the front drying zone and the rear drying zone of the Lyocell fiber dryer, it includes a turning conveyor (1), a front feeder (2), and a swivel bucket (3). The turning conveyor (1) is perpendicular to the front feeder (2). The fibers in the front drying zone are conveyed to the turning conveyor (1) through the front feeder (2) and then fed into the rear drying zone through the swivel bucket (3).
2. The turning conveyor device for a lyocell fiber dryer according to claim 1, characterized in that: The turning conveyor (1) includes a connected horizontal conveying section (11) and an inclined conveying section (12).
3. The turning conveyor device for a lyocell fiber dryer according to claim 2, characterized in that: The turning conveyor (1) has a conveyor belt inside and a closed shell (13) outside. The closed shell (13) has an exhaust window (14) at the highest point of the inclined conveyor section (12).
4. The turning conveyor device for a lyocell fiber dryer according to claim 1, characterized in that: It also includes a post-feeder (4), through which the fibers output from the swing hopper (3) are processed before entering the post-drying zone.
5. The turning conveyor device for a lyocell fiber dryer according to claim 2, characterized in that: The horizontal conveying section (11) is provided with a grid structure (15) on one side and a scraper structure (16) on the other side.
6. The turning conveyor device for a lyocell fiber dryer according to claim 5, characterized in that: The barrier structure (15) includes a first support column set on one side of the turning conveyor (1), and a positive baffle (152) is rotatably set on the first support column. The upper and lower ends of the positive baffle (152) are respectively detachably set with a height adjustment baffle (153) and a leak-proof bending plate (154). The arc-shaped bottom of the leak-proof bending plate (154) contacts the surface of the transmission belt in the turning conveyor (1).
7. The turning conveyor device for a lyocell fiber dryer according to claim 6, characterized in that: The first supporting column is a telescopic column equipped with a positioning mechanism.
8. The turning conveyor device for a lyocell fiber dryer according to claim 6, characterized in that: The scraper structure (16) includes a second support column (161) disposed on the other side of the turning conveyor (1). The second support column (161) is provided with an mounting plate (162). A scraper (163) is detachably disposed on the upper end of the mounting plate (162). The anti-leak bending plate (154) is detachably disposed on the lower end of the mounting plate (162). The upper end of the scraper (163) contacts the conveyor belt of the front feeder (2). The arc-shaped bottom of the anti-leak bending plate (154) contacts the surface of the transmission belt in the turning conveyor (1).
9. A lyocell fiber dryer, characterized in that: The device includes a turning conveyor for a lyocell fiber dryer as described in any one of claims 1 to 8, and further includes multiple parallel drying zones connected to each other by the turning conveyor for the lyocell fiber dryer.