Single-screw feeding device of flash dryer

Abstract

The utility model belongs to the technical field of flash drying machines, and discloses a single-screw feeding device of a flash drying machine, which comprises a flash drying machine main body, a base and a single-screw feeder, the flash drying machine main body is arranged on the base, the single-screw feeder is arranged on the flash drying machine main body, a feeding pipe is arranged on the single-screw feeder, and the single-screw feeder is connected with the base. A feeding hopper communicated with the feeding pipe is arranged on the feeding pipe, and a pipeline dredging mechanism is arranged in the feeding hopper; the pipeline dredging mechanism comprises a rotating ring plate rotationally connected to the edge of the top of the feeding hopper, and a rotating driving assembly for driving the rotating ring plate to rotate is arranged on the outer side of the feeding hopper. According to the scheme, the pipeline dredging mechanism is additionally arranged on the feeding hopper, and the pipeline dredging mechanism can automatically dredge raw materials during feeding through the synergistic effect of the rotating ring plate and the dredging device, so that the blockage of the feeding pipe caused by the fact that the raw materials are stacked, extruded and clustered is effectively avoided, and the feeding efficiency of the flash drying machine and the overall performance of the equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flash dryers, and more specifically, to a single-screw feeding device for a flash dryer. Background Technique

[0002] A flash dryer is a new type of continuous drying equipment that integrates drying, crushing, and screening. When in use, hot air enters the annular gap at the bottom of the drying chamber tangentially through the inlet pipe. At the same time, the material is quantitatively added into the tower by the feeder, and undergoes sufficient heat exchange with the hot air. Larger and wetter materials are mechanically crushed under the action of the stirrer, and materials with lower moisture content and smaller particle size rise together with the rotating air flow, and are transported to the separator for gas-solid separation, and the finished product is collected and packaged.

[0003] Currently, in order to achieve uninterrupted automatic feeding, most flash dryers usually adopt a single-screw feeding device for auxiliary feeding. During feeding, the staff feeds raw materials into the feeding pipe of the single-screw feeding device, and the raw materials then fall into the screw feeder, and finally are transported into the flash dryer by the screw feeder. However, in actual use, the feeding pipe often gets blocked due to the accumulation and extrusion of raw materials into a mass, which affects the feeding efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to solve the drawbacks existing in the prior art, and to propose a single-screw feeding device for a flash dryer.

[0005] To solve the above problems in the background technique, the utility model adopts the following technical solutions:

[0006] A single-screw feeding device for a flash dryer, including a flash dryer main body, a base, and a single-screw feeder. The flash dryer main body is installed on the base, and the single-screw feeder is installed on the flash dryer main body. A feeding pipe is provided on the single-screw feeder, and a feeding hopper communicated with the feeding pipe is provided on the feeding pipe. A pipeline dredging mechanism is provided in the feeding hopper;

[0007] The pipeline dredging mechanism includes a rotating ring plate rotatably connected to the top edge of the feeding hopper. A rotating drive assembly for driving the rotating ring plate to rotate is provided outside the feeding hopper. A dredger is provided at the bottom of the rotating ring plate, and the dredger extends into the feeding pipe.

[0008] As a further description of the above technical solution: A support plate is provided outside the base corresponding to the single-screw feeder. A support seat is fixedly connected to the support plate, and the support seat contacts the bottom of the single-screw feeder.

[0009] As a further description of the above technical solution: A downward extending portion is provided on the outer side of the rotating ring plate. An annular chute is provided at the top edge of the feed hopper. A plurality of evenly distributed sliders are slidably connected in the annular chute. The sliders are fixedly connected to the inner bottom of the rotating ring plate. The rotating ring plate is slidably connected to the feed hopper through the annular chute and the sliders.

[0010] As a further description of the above technical solution: The rotation driving assembly includes a gear ring sleeved on the outer side of the extending portion and fixedly connected thereto. A rotation driving gear meshing with the gear ring is provided on the outer side of the gear ring. A rotating shaft is fixedly connected to the bottom of the rotation driving gear. A support block is fixedly connected to the outer wall of the feed hopper. A rotation motor is fixedly connected to the support block. The output shaft of the rotation motor is fixedly connected to the rotating shaft.

[0011] As a further description of the above technical solution: The dredger includes a dredging rod. The dredging rod is fixedly connected to the rotating ring plate and its bottom extends into the feed pipe. A plurality of support rods are connected to the part of the dredging rod located in the feed pipe.

[0012] As a further description of the above technical solution: The shape of the dredging rod is consistent with the combined shape of the feed hopper and the feed pipe. The dredging rod is close to the inner walls of the feed hopper and the feed pipe.

[0013] As a further description of the above technical solution: The support rods extend obliquely upward from one end of the dredging rod.

[0014] Compared with the prior art, the advantages of the present utility model are as follows:

[0015] In this solution, a pipeline dredging mechanism is added to the feed hopper. Through the coordinated action of the rotating ring plate and the dredger, the pipeline dredging mechanism can automatically dredge the raw materials while feeding, effectively avoiding the blockage of the feed pipe caused by the accumulation and extrusion of the raw materials into a mass, thereby improving the feeding efficiency of the flash dryer and the overall performance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the feed hopper of the present utility model;

[0018] Figure 3 is an exploded view of the feed hopper of the present utility model;

[0019] Figure 4 is a schematic structural diagram of the dredger of the present utility model.

[0020] Description of the reference numerals in the drawings:

[0021] 1. Main body of flash dryer; 2. Base; 3. Single-screw feeder; 4. Feed pipe; 5. Feed hopper; 6. Pipe dredging mechanism; 61. Rotating ring plate; 611. Extension part; 62. Rotating drive assembly; 621. Gear ring; 622. Rotating drive gear; 623. Rotating shaft; 624. Support block; 625. Rotating motor; 63. Dredger; 631. Dredging rod; 632. Support rod; 7. Support plate; 8. Support seat; 9. Annular chute; 10. Slide block. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 1 , a single-screw feeding device of a flash dryer, including the main body 1 of the flash dryer, the base 2 and the single-screw feeder 3. The main body 1 of the flash dryer is installed on the base 2, the single-screw feeder 3 is installed on the main body 1 of the flash dryer, a feed pipe 4 is arranged on the single-screw feeder 3, a feed hopper 5 communicated with the feed pipe 4 is arranged on the feed pipe 4, and a pipe dredging mechanism 6 is arranged in the feed hopper 5.

[0024] In this embodiment, by adding a pipe dredging mechanism 6 to the feed hopper 5, the raw materials can be automatically dredged while feeding, thereby effectively avoiding the blockage of the feed pipe 4 caused by the accumulation and extrusion of the raw materials into a mass.

[0025] As Figure 2 , 3 shown, the pipe dredging mechanism 6 includes a rotating ring plate 61 rotatably connected to the top edge of the feed hopper 5. A rotating drive assembly 62 for driving the rotating ring plate 61 to rotate is arranged outside the feed hopper 5. A dredger 63 is arranged at the bottom of the rotating ring plate 61, and the dredger 63 extends into the feed pipe 4. An outward extension 611 is arranged on the outside of the rotating ring plate 61. An annular chute 9 is opened at the top edge of the feed hopper 5. A plurality of evenly distributed sliders 10 are slidably connected in the annular chute 9. The sliders 10 are fixedly connected to the inner bottom of the rotating ring plate 61. The rotating ring plate 61 is slidably connected to the feed hopper 5 through the annular chute 9 and the sliders 10.

[0026] The pipeline dredging mechanism 6 drives the rotary ring plate 61 to rotate through the rotary drive assembly 62, and then drives the dredger 63 to rotate to dredge the feed pipe 4, thus effectively avoiding pipeline blockage. Moreover, the internal design requirements of the pipeline dredging mechanism 6 for the feed hopper 5 and the feed pipe 4 are not high. For the connection structures of the feed hopper 5 and the feed pipe 4 of the same type in this solution, they can be directly installed and used.

[0027] Among them, as Figure 4 shown, the dredger 63 includes a dredging rod 631. The dredging rod 631 is fixedly connected to the rotary ring plate 61 and its bottom extends into the feed pipe 4. A plurality of support rods 632 are connected to the part of the dredging rod 631 located in the feed pipe 4. When the rotary ring plate 61 rotates, it drives the dredging rod 631 and the support rods 632 to rotate, so that the dredging rod 631 and the support rods 632 continuously stir the raw materials in the feed pipe 4, effectively avoiding the blockage of the pipeline caused by the agglomeration of raw materials.

[0028] Furthermore, the shape of the dredging rod 631 is consistent with the combined shape of the feed hopper 5 and the feed pipe 4, and the dredging rod 631 is close to the inner walls of the feed hopper 5 and the feed pipe 4. The support rods 632 extend obliquely upward from one end of the dredging rod 631. This design makes the support rods 632 opposite to the feeding direction of the raw materials, generating stronger shear force and impact force when the support rods 632 rotate, which helps to break the agglomeration of the raw materials, disperse the raw material particles, and reduce the blockage caused by agglomeration.

[0029] As Figure 2 、 3 shown, the rotary drive assembly 62 is a mechanism that provides rotational power for the rotary ring plate 61. The rotary drive assembly 62 includes a gear ring 621 sleeved outside and fixedly connected to the extension part 611. A rotary drive gear 622 meshing with the gear ring 621 is arranged outside the gear ring 621. A rotating shaft 623 is fixedly connected to the bottom of the rotary drive gear 622. A support block 624 is fixedly connected to the outer side wall of the feed hopper 5, and a rotary motor 625 is fixedly connected to the support block 624. The output shaft of the rotary motor 625 is fixedly connected to the rotating shaft 623.

[0030] The rotary drive assembly 62 is energized and operated by the rotary motor 625, drives the rotating shaft 623 and the rotary drive gear 622 to rotate, and then makes the rotary ring plate 61 rotate through the meshing transmission of the gear ring 621, and then drives the dredger 63 to rotate and work.

[0031] In addition, a support plate 7 is arranged outside the base 2 corresponding to the single - screw feeder 3. A support seat 8 is fixedly connected to the support plate 7, and the support seat 8 contacts the bottom of the single - screw feeder 3. The support plate 7 and the support seat 8 are used to assist in supporting the single - screw feeder 3 to ensure its stability.

[0032] The above are only the preferred specific embodiments of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its improved conceptions, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present utility model.

Claims

1. A single screw feeder for a flash dryer, comprising a flash dryer body (1), a base (2) and a single screw feeder (3), wherein the flash dryer body (1) is mounted on the base (2), and the single screw feeder (3) is mounted on the flash dryer body (1), characterized in that: The single screw feeder (3) is provided with a feed pipe (4), the feed pipe (4) is provided with a feed hopper (5) connected thereto, and the feed hopper (5) is provided with a pipeline dredging mechanism (6); The pipeline dredging mechanism (6) comprises a rotating ring plate (61) rotatably connected to the top edge of the feed hopper (5), a rotating drive assembly (62) for driving the rotating ring plate (61) to rotate is arranged on the outer side of the feed hopper (5), and a dredging device (63) is arranged at the bottom of the rotating ring plate (61), and the dredging device (63) extends into the feed pipe (4).

2. The single screw feeding device of a flash dryer according to claim 1, characterized in that: A support plate (7) is provided on the outer side of the base (2) corresponding to the single screw feeder (3), a support seat (8) is fixedly connected to the support plate (7), and the support seat (8) is in contact with the bottom of the single screw feeder (3).

3. The single screw feeding device of a flash dryer according to claim 1, characterized in that: A downwardly extending portion (611) is provided on the outer side of the rotating ring plate (61), and a circle of annular sliding grooves (9) are provided at the top edge of the feed hopper (5). Evenly distributed sliders (10) are slidably connected in the annular sliding grooves (9), and the sliders (10) are fixedly connected to the inner bottom of the rotating ring plate (61). The rotating ring plate (61) is slidably connected to the feed hopper (5) via the annular sliding grooves (9) and the sliders (10).

4. The single screw feeding device of a flash dryer according to claim 3, characterized in that: The rotary drive assembly (62) comprises a gear ring (621) sleeved on the outside of the extension portion (611) and fixedly connected thereto; a rotary drive gear (622) meshing therewith is arranged on the outside of the gear ring (621); a rotating shaft (623) is fixedly connected to the bottom of the rotary drive gear (622); a support block (624) is fixedly connected to the outer wall of the feed hopper (5); a rotary motor (625) is fixedly connected to the support block (624); and an output shaft of the rotary motor (625) is fixedly connected to the rotating shaft (623).

5. The single screw feeding device of a flash dryer according to claim 1, characterized in that: The dredging device (63) comprises a dredging rod (631), the dredging rod (631) being fixedly connected to the rotating ring plate (61) and having a bottom extending into the feed pipe (4), and a portion of the dredging rod (631) located in the feed pipe (4) being connected to a plurality of supporting rods (632).

6. The single screw feeding device of a flash dryer according to claim 5, characterized in that: The dredging rod (631) has the same shape as the combined shape of the feed hopper (5) and the feed pipe (4), and the dredging rod (631) is close to the inner walls of the feed hopper (5) and the feed pipe (4).

7. The single screw feeding device of a flash dryer according to claim 5, characterized in that: The support rod (632) extends obliquely upward from one end of the dredging rod (631).

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