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CN-224202081-U - Rake arm structure of disc dryer and disc dryer

CN224202081UCN 224202081 UCN224202081 UCN 224202081UCN-224202081-U

Abstract

The utility model relates to the field of disc dryers and discloses a rake arm structure of a disc dryer. The rake arm structure comprises a rake rod, rake blades and a pressing wheel, wherein one end of the rake rod is used for being fixedly connected with a main shaft of the disc dryer, the rake blades are fixedly arranged on the rake rod and used for stirring materials on a drying disc of the disc dryer, and the pressing wheel is fixedly connected with the rake rod and used for rolling the materials on the drying disc. The rake rod is fixedly connected with a main shaft of the disc dryer, so that the rake rod can rotate along with the main shaft, rake blades arranged on the rake rod can stir materials on the drying disc, so that the materials are fully contacted with the drying disc, drying efficiency of the materials is improved, a pinch roller connected with the rake rod can roll high-water-content materials on the drying disc, the size of the materials is reduced, the high-water-content materials are dried, overload operation of the main shaft caused by accumulation of the high-water-content materials on the rake blades can be avoided, the materials are fully contacted with the drying disc, and the drying efficiency of the materials is improved.

Inventors

  • DAI ZHONGJIA
  • LI GANG
  • ZHENG JINYU

Assignees

  • 中国石油化工股份有限公司
  • 中石化石油化工科学研究院有限公司

Dates

Publication Date
20260505
Application Date
20250508

Claims (10)

  1. 1. A rake arm structure of a tray dryer, comprising: The device comprises a rake rod (1), wherein one end of the rake rod (1) is fixedly connected with a main shaft (2) of a disc dryer; a harrow blade (3), wherein the harrow blade (3) is fixedly arranged on the harrow rod (1) and is used for stirring the materials on a drying disc (4) of the disc dryer, and And the pressing wheel (5) is fixedly connected with the harrow bar (1) and is used for rolling the materials on the drying disc (4).
  2. 2. A rake arm structure of a disc dryer according to claim 1, characterized in that the pinch roller (5) is arranged behind the rake blade (3) in the direction of rotation of the main shaft (2).
  3. 3. The rake arm structure of a disc dryer according to claim 1, wherein a plurality of the rake blades (3) are provided, a plurality of the rake blades (3) are spaced apart along the axial direction of the rake bar (1), a plurality of the pressing wheels (5) are provided, each pressing wheel (5) is provided corresponding to at least one of the rake blades (3), or The pinch rollers (5) are arranged one by one, and one pinch roller (5) is correspondingly arranged with the plurality of harrow blades (3).
  4. 4. A rake arm structure of a disc dryer according to claim 1, characterized in that the rotation axis of the pinch roller (5) intersects and is perpendicular to the axis of the main shaft (2).
  5. 5. The rake arm structure of a disc dryer according to claim 1, characterized in that the rake arm structure further comprises a connecting piece (6), the connecting piece (6) is used for fixedly connecting the pressing wheel (5) to the rake bar (1), and the pressing wheel (5) is rotatably arranged on the connecting piece (6).
  6. 6. A rake arm structure of a disc dryer according to claim 5, characterized in that the connection piece (6) comprises: Two connecting rods (61), one end of each connecting rod (61) is fixedly connected with the harrow bar (1), and The connecting shafts (62), the two ends of each connecting shaft (62) are fixedly connected with the other ends of the two connecting rods (61), and the pressing wheels (5) are rotatably arranged on the connecting shafts (62).
  7. 7. A rake arm structure of a disc dryer according to any one of claims 1-6, characterized in that the rake arm structure further comprises a plurality of bushings (7), a plurality of said bushings (7) being fixedly arranged to the rake bar (1), a space being formed between the bushings (7) and adjacent rake blades (3) for the passage of material.
  8. 8. A rake arm structure of a tray dryer according to any one of claims 1-6, characterized in that the rake blade (3) comprises: the harrow blade sleeve (31), the harrow blade sleeve (31) is fixedly connected with the harrow bar (1); a harrow blade connecting plate (32), one end of the harrow blade connecting plate (32) is fixedly connected with the harrow blade sleeve (31), and The harrow She Benti (33), harrow She Benti (33) with the other end fixed connection of harrow leaf connecting plate (32), harrow She Benti (33) with harrow pole (1) is the angle setting, and a plurality of harrow She Benti (33) with the angle that forms between harrow pole (1) is the same.
  9. 9. Disc dryer, characterized in that it comprises a main shaft (2), a drying disc (4) and a plurality of rake arm structures according to any one of claims 1-8, which are evenly distributed along the circumference of the main shaft (2).
  10. 10. A tray dryer according to claim 9, characterized in that the drying tray (4) is provided in a plurality, a plurality of the drying trays (4) being spaced apart along the axial direction of the main shaft (2).

Description

Rake arm structure of disc dryer and disc dryer Technical Field The utility model relates to the technical field of disc dryers, in particular to a rake arm structure of a disc dryer and the disc dryer. Background The tray dryer is drying equipment mainly based on heat conduction, has the characteristics of high heat efficiency, low power consumption, uniform material heating, small material loss, stable product quality and the like, and is widely applied to the industries of chemical industry, food, medicine and the like. The disc dryer comprises a vertically arranged rotating shaft and a drying disc coaxial with the rotating shaft, wherein a rake rod is connected to the rotating shaft, a plurality of rake blades are arranged on the rake rod, and the rake rod rotates along with the rotating shaft, so that the rake blades stir the materials on the drying disc, the materials are heated uniformly, and drying is realized. The water content of the material entering the dryer is usually required to be below 20% by the existing disc dryer, the size of the material is usually not larger than the gap of the harrow blades, if the water content of the material is higher or the viscosity is higher, the material and the drying disc cannot be effectively contacted, the drying effect of the material is reduced, and the material is accumulated among the harrow blades due to the larger size of the material with high water content, so that the overload operation of the rotating shaft is caused, and the disc type continuous dryer is damaged. Disclosure of utility model The utility model aims to solve the problem that large-size materials are easy to accumulate among rake blades to cause overload operation of the rake blades in the prior art, and provides a rake arm structure of a disc dryer and the disc dryer. In order to achieve the above purpose, the utility model provides a rake arm structure of a disc dryer, which comprises a rake rod, a rake blade and a pressing wheel, wherein one end of the rake rod is fixedly connected with a main shaft of the disc dryer, the rake blade is fixedly arranged on the rake rod and is used for stirring materials on a drying disc of the disc dryer, and the pressing wheel is fixedly connected with the rake rod and is used for rolling the materials on the drying disc. Preferably, along the rotation direction of the main shaft, the pressing wheel is arranged at the rear of the harrow blade. Preferably, a plurality of rake blades are arranged, a plurality of rake blades are distributed at intervals along the axial direction of the rake rod, a plurality of pinch rollers are arranged, each pinch roller is arranged corresponding to at least one rake blade, or one pinch roller is arranged, and one pinch roller is arranged corresponding to a plurality of rakes She Duiying. Preferably, the rotation axis of the pinch roller intersects and is perpendicular to the axis of the main shaft. Preferably, the rake arm structure further comprises a connecting piece, wherein the connecting piece is used for fixedly connecting the pressing wheel to the rake rod, and the pressing wheel is rotatably arranged on the connecting piece. Preferably, the connecting piece comprises two connecting rods, one ends of the two connecting rods are fixedly connected with the harrow bars, and connecting shafts, two ends of each connecting shaft are respectively and fixedly connected with the other ends of the two connecting rods, and the pressing wheels are rotatably arranged on the connecting shafts. Preferably, the rake arm structure further comprises a plurality of sleeves, the plurality of sleeves are fixedly arranged on the rake rod, and a space for materials to pass through is formed between each sleeve and each adjacent rake blade. Preferably, the harrow blade comprises a harrow blade sleeve fixedly connected with the harrow bar, a harrow blade connecting plate, a harrow She Benti and a harrow, wherein one end of the harrow blade connecting plate is fixedly connected with the harrow blade sleeve, the harrow blade body is fixedly connected with the other end of the harrow blade connecting plate, the harrow blade body and the harrow bar are arranged at an angle, and the angles formed between the harrow blade bodies and the harrow bar are the same. A second aspect of the present utility model provides a tray dryer comprising a main shaft, a drying tray and a plurality of rake arm structures according to any of the above-mentioned aspects, the plurality of rake arm structures being evenly distributed along the circumference of the main shaft. Preferably, a plurality of drying trays are provided, and the plurality of drying trays are distributed at intervals along the axial direction of the main shaft. According to the technical scheme, the rake rod is fixedly connected with the main shaft of the disc dryer, when the main shaft rotates, the rake rod can rotate along with the main shaft, so that the rake blades and the pressing