Umbrella type rotary distributing device
The design of the dispersing piece and distribution plate of the umbrella-type rotary distributor solves the problem of feed agglomeration in the fluidized bed, achieves uniform distribution of materials and improves drying efficiency, and avoids equipment damage.
Patent Information
- Application Number
- CN202422965580.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-02
AI Technical Summary
When feeding into the existing fluidized bed, the wet PVC material tends to agglomerate at the feeding end, resulting in poor local fluidization, pile-up and corrosion of the heat exchanger. In addition, the screw feeder tends to squeeze the material into blocks, affecting the drying efficiency and equipment life.
The umbrella-type rotary distributor is used, including a feed bin, a scattering bin and a distribution disc. The materials are dispersed by the dispersion pieces and the material lever, and the rotating scattering of the distribution disc is combined to achieve uniform distribution of the materials.
Effectively prevent material agglomeration, improve the uniformity of the fluidized bed feeding section, avoid blockage and material accumulation, improve drying efficiency and extend equipment life.
Smart Images
Figure CN223460785U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fluidized bed dryer feeder technical field especially relates to an umbrella type rotary material distributor. BACKGROUND
[0002] The small particle resin product after PVC synthesis needs to remove the residual material after polymerization by washing, and the overall water content is large after washing due to the small particle size of PVC particles, and a large amount of water still remains after centrifugal dewatering, so it needs to be continuously sent to the fluidized bed for drying and further water removal.
[0003] The existing fluidized bed feed usually uses a vibrating feeder or a screw feeder for direct feeding, and the PVC wet material is concentrated below the material drop port. If there is no effective dispersion measure, a large amount of material is added in a small bed area range at the feeding end, which will cause poor fluidization in the feeding area, material stacking, unstable operation, and easy formation of agglomerates in the material-intensive part, resulting in "dead bed". The PVC wet material is easy to accumulate on the internal heat exchanger in the feeding end, the internal heat exchanger causes the PVC powder to decompose and produce HCL, and further causes the heat exchanger to corrode and damage, resulting in frequent replacement of the internal heat exchanger. If the heat exchanger is damaged and needs to be stopped for cleaning, a lot of manpower will be wasted.
[0004] At the same time, although the screw feeder can accurately control the feeding amount of the material, its conveying principle is to push the material forward by extruding the material in the pipe with the screw, which is easy to extrude the PVC wet material into blocks, and further cause the PVC wet material entering the feeding end of the fluidized bed to be more prone to agglomeration. Utility model content
[0005] The utility model discloses a kind of umbrella type rotary material distributors to solve the problems in prior art.
[0006] The utility model discloses the following technical solutions: an umbrella type rotary material distributor, including feed bin, motor base, material distribution motor, screw feeder, scattering bin, drop bin, pivot and material distribution disc, screw feeder is connected on the feed bin, motor base is fixedly arranged on the top of feed bin, material distribution motor is installed on motor base, scattering bin is sealingly connected below feed bin, drop bin is sealingly connected below scattering bin, drop bin bottom is provided with opening, feed bin, scattering bin and drop bin are concentrically arranged, pivot is coaxially arranged in feed bin, scattering bin and drop bin, the output shaft of material distribution motor is drivingly connected with the shaft seat of motor base, which is rotatably penetrated through the upper end of pivot, material distribution disc is fixedly installed below the lower end of pivot and below the drop port of drop bin bottom.
[0007] Furthermore, a plurality of layers of dispersion sheets are provided in the scattering bin, and a plurality of material-moving rods are provided on the rotating shaft. The material-moving rods are circumferentially arranged along the side wall of the rotating shaft, and the material-moving rods are rotatably arranged above each layer of dispersion sheets.
[0008] Furthermore, the dispersion pieces are evenly arranged along the circumference of the inner wall of the scattering bin, and the dispersion pieces form an angle of 30-45 degrees with the horizontal plane.
[0009] Furthermore, the blanking bin is in a conical shape with a tapered bottom, and the angle between the side wall of the blanking bin and the horizontal plane is greater than 70°.
[0010] Furthermore, the distribution tray is in a truncated cone shape, and a paddle is integrally formed on the side wall of the distribution tray.
[0011] The advantages of the utility model are as follows: by providing a breaking-up bin, the compressed and agglomerated PVC wet material can be dispersed, which is convenient for material discharge and can avoid material clogging in the discharge bin; and can prevent the material from settling in the feeding section of the fluidized bed in the later stage and causing the phenomenon of material piling. The dispersed material is easier to dry and the drying efficiency can be improved. Furthermore, the material is scattered in an umbrella shape by the rotation of the distribution disc, which improves the uniformity of material distribution in the feeding section of the fluidized bed and solves the problems of poor fluidization and material piling. Description of the drawings:
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0013] Figure 2 It is a partial cross-sectional view of the feed bin and the bulking bin.
[0014] In the figure: feed bin 1, motor base 2, material distribution motor 3, screw feeder 4, scattering bin 5, material drop bin 6, rotating shaft 7, material distribution plate 8, shaft base 201, dispersion piece 501, material displacing rod 701, and displacing piece 801. Specific implementation method:
[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0016] In the description of the utility model, it needs to explain, the terms "center", "upper", "lower", "front", "back", "top", "bottom", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, just is for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the device or element must have a particular orientation, construct and operate in a particular orientation, therefore it can not be understood as the limitation of the utility model.
[0017] As shown in Figure 1 , Figure 2 : an umbrella type rotary material distributor, including feed bin 1, motor base 2, cloth motor 3, screw feeder 4, scattering bin 5, blanking bin 6, shaft 7 and cloth disc 8, the screw feeder 4 is connected on the feed bin 1, the feed hopper of the screw feeder 4 is connected with the chute of previous process, the screw feeder 4 is arranged at one side of the feed bin 1, and the feed bin 1 is fed, further to ensure uniform feeding, the screw feeder 4 can also be arranged on both sides of the feed bin 1 to ensure that the feed bin 1 is fed more uniformly, the motor base 2 is fixedly arranged at the top of the feed bin 1, the cloth motor 3 is installed on the motor base 2, the scattering bin 5 is sealingly connected below the feed bin 1, the scattering bin 5 is used to scatter the agglomerated compressed material again, due to the large water content of pvc wet material, a part of the agglomerated material will be extruded under the rotation of the screw of the screw feeder 4, the agglomerated material may cause the blanking bin 6 below to be blocked, and the effect of drying is affected after entering the fluidized bed, a plurality of dispersion pieces 501 are arranged in the scattering bin 5, each layer of dispersion piece 501 is composed of a plurality of inclined dispersion pieces 501 circumferentially arranged on the inner wall of the scattering bin 5, the dispersion pieces 501 are evenly arranged along the inner wall of the scattering bin 5, the dispersion pieces 501 form an angle of 30-45 ° with the horizontal plane, the distance between each dispersion piece 501 of each layer is less than the number average size of the agglomerated pcv wet material, which plays a role in intercepting the agglomerated material, a plurality of raking rods 701 are arranged on the shaft 7, the raking rods 701 are circumferentially arranged along the side wall of the shaft 7, the raking rods 701 are rotationally arranged above each layer of dispersion piece 501, the shaft 7 is driven by the cloth motor 3 to rotate the raking rods 701, the blanking bin 6 is sealingly connected below the scattering bin 5, the blanking bin 6 is provided with an opening at the bottom, the blanking bin 6 is conical with the bottom being tapered, the side wall of the blanking bin 6 forms an angle greater than 70 ° with the horizontal plane, and the inclined side wall of the blanking bin 6 is beneficial to the smooth sliding of the material along the inner wall and is not easy to stick to the inner wall.
[0018] The PVC wet material enters from the feeding bin 1, freely falls under the action of gravity, falls into the disintegrating bin 5 after being disintegrated into small pieces from the large extruded blocks, slides along the inner wall of the disintegrating bin 6, and finally falls from the bottom of the disintegrating bin 6. The feeding bin 1, the disintegrating bin 5 and the disintegrating bin 6 are concentrically arranged, a rotating shaft 7 is coaxially arranged in the feeding bin 1, the disintegrating bin 5 and the disintegrating bin 6, the upper end of the rotating shaft 7 is rotatably arranged through the shaft seat 201 of the motor base 2 and is in transmission connection with the output shaft of the distributing motor 3, the shaft seat 201 is fixedly arranged on the motor base 2 and is in rotation connection with the rotating shaft 7, the shaft seat 201 supports the rotating shaft 7, the distributing disc 8 is fixedly arranged at the lower end of the rotating shaft 7 and below the discharging port of the disintegrating bin 6, the disintegrated material is uniformly distributed along the inner wall of the disintegrating bin 6 and then flows out from the discharging port of the disintegrating bin 6, the flowed-out material falls on the rotating distributing disc 8, the distributing disc 8 is in the shape of a circular truncated cone, the distributing disc 8 is integrally formed with a paddle 801 on the side wall, the distributing disc 8 rotates, the paddle 801 collides with the material to give the falling material a throwing kinetic energy, so that the material falling on the distributing disc 8 is dispersed in the shape of an umbrella, the area of the dispersed material can be controlled by adjusting the rotating speed of the distributing disc 8, the higher the rotating speed of the distributing disc 8, the larger the area of the dispersed material, the rotating speed of the distributing motor 3 is periodically raised and lowered, the rotating speed is set to be linearly periodically changed, so that the material distributing area is periodically changed, and then the material is uniformly distributed according to the area of the feeding area of the fluidized bed.
Claims
1. An umbrella-type rotary distributor, characterized in that, The utility model relates to a kind of dispersing device, including feed bin (1), motor base (2), cloth motor (3), screw feeder (4), scattering bin (5), blanking bin (6), rotating shaft (7) and cloth tray (8), screw feeder (4) is connected on feed bin (1), motor base (2) is fixed on the top of feed bin (1), cloth motor (3) is installed on motor base (2), scattering bin (5) is sealingly connected below feed bin (1), blanking bin (6) is sealingly connected below scattering bin (5), blanking bin (6) bottom opening is provided, feed bin (1), scattering bin (5) and blanking bin (6) are concentrically arranged, rotating shaft (7) is coaxially arranged in feed bin (1), scattering bin (5) and blanking bin (6), rotating shaft (7) upper end rotates through the shaft seat (201) of motor base (2) and the output shaft of cloth motor (3) transmission connection, cloth tray (8) is fixedly installed below rotating shaft (7) lower end, blanking bin (6) bottom discharge port below.
2. A rotary distributor according to claim 1, wherein A plurality of dispersing sheets (501) are arranged in the scattering bin (5), a plurality of stirring rods (701) are arranged on the rotating shaft (7), the stirring rods (701) are arranged circumferentially along the side wall of the rotating shaft (7), and the stirring rods (701) are rotatably arranged above each of the dispersing sheets (501).
3. A rotary distributor according to claim 2, wherein, The dispersing sheets (501) are evenly arranged circumferentially along the inner wall of the scattering bin (5), and the dispersing sheets (501) form an angle of 30-45° with the horizontal plane.
4. A rotary cloth distributor according to any one of claims 1 to 3, characterised in that, The blanking bin (6) is tapered with a bottom opening, and the side wall of the blanking bin (6) forms an angle of greater than 70° with the horizontal plane.
5. The umbrella-type rotary distributor according to claim 4, characterized in that: The cloth tray (8) is frustoconical, and a stirring piece (801) is integrally formed on the side wall of the cloth tray (8).