Lactose crystallizing and drying device

Abstract

The lactose crystallizing and drying device comprises a rack, an upper baffle and a lower baffle are perpendicularly and fixedly connected to the two ends of a heat preservation cylinder respectively, the upper baffle is located on the side, corresponding to a hot air pipe, of a middle partition plate, the lower baffle is located on the side, corresponding to a cold air pipe, of the middle partition plate, and a plurality of fins are fixedly connected to the surface of a roller at equal intervals in the circumferential direction. And a plurality of groups of fins are arranged on the surface of the roller close to the middle partition plate along the axial direction at equal intervals. The multiple fins are fixedly connected to the surface of the roller in the circumferential direction and the axial direction, the upper baffle is arranged at the hot air end of the heat preservation barrel, and the lower baffle is arranged at the cold air end of the heat preservation barrel. The hot air and the cold air fill the space from the middle to the two ends in the heat preservation barrel, the hot air fills the space from top to bottom in the heat preservation barrel, and the cold air fills the space from bottom to top in the heat preservation barrel to overflow, so that the retention time of the hot air and the cold air in the heat preservation barrel is prolonged, heat exchange with the roller and lactose in the roller is improved, and the energy utilization rate is increased.

Claims

1. A lactose crystallization drying device, comprising a frame (1), a support roller (2) being mounted on the frame (1), a roller (3) being rotatably connected to the support roller (2), a heat preservation cylinder (4) being fixedly mounted on the frame (1), the heat preservation cylinder (4) being sleeved on the surface of the roller (3), characterized in that: The top of the heat preservation cylinder (4) is connected to a hot air duct (5) and a cold air duct (6); the inner wall of the heat preservation cylinder (4) is vertically fixedly connected to a middle partition plate (7); the two ends of the heat preservation cylinder (4) are respectively vertically fixedly connected to an upper baffle plate (8) and a lower baffle plate (9); a ventilation gap is provided between the bottom of the upper baffle plate (8) and the bottom of the inner wall of the drum (3); a ventilation gap is provided between the top of the lower baffle plate (9) and the top of the inner wall of the drum (3); the upper baffle plate (8) and the lower baffle plate (9) of the middle partition plate (7) are movably sleeved on the surface of the drum (3); The middle partition (7) is located between the hot air duct (5) and the cold air duct (6); the upper baffle (8) is located on the side of the middle partition (7) corresponding to the hot air duct (5); the lower baffle (9) is located on the side of the middle partition (7) corresponding to the cold air duct (6); a plurality of fins (10) are fixedly connected to the surface of the drum (3) at equal intervals along the circumferential direction; a plurality of groups of fins (10) are arranged at equal intervals along the axial direction at a position of the surface of the drum (3) close to the middle partition (7); and a hollow area without fins (10) having a width of at least one group of fins (10) is arranged on the surface of the drum (3) located inside the heat preservation cylinder (4) and close to the upper baffle (8) and the lower baffle (9).

2. A lactose crystallization drying device according to claim 1, characterized in that: The distance between two adjacent groups of fins (10) is smaller than the width of one group of fins (10).

3. A lactose crystallization drying device according to claim 1, characterized in that: The inner wall of the heat-insulating cylinder (4), the opposing surfaces of the upper baffle plate (8) and the middle partition plate (7), and the opposing surfaces of the lower baffle plate (9) and the middle partition plate (7) are all provided with a heat-insulating coating (11).

4. A lactose crystallization drying device according to claim 1, characterized in that: The distance between the upper baffle plate (8) and the middle baffle plate (7) is greater than the distance between the lower baffle plate (9) and the middle baffle plate (7).

5. A lactose crystallization drying device according to claim 1, characterized in that: The height of the frame (1) at one end corresponding to the upper baffle (8) is greater than the height of the frame (1) at one end corresponding to the lower baffle (9).

6. A lactose crystallization drying device according to claim 1, characterized in that: A limiting track (12) is provided on the surface of the roller (3) at a position corresponding to the supporting roller (2).

7. A lactose crystallization and drying device according to claim 1, characterized in that: The inner wall of the drum (3) is provided with lifting plates (13) at equal distances in the circumferential direction and the axial direction.

8. A lactose crystallization drying device according to claim 1, characterized in that: A gear ring (14) is fixedly mounted on the outer wall of the drum (3); a drive motor (15) and a drive gear (16) drivingly connected to the drive motor (15) are mounted on the frame (1); the drive gear (16) is in driving meshing engagement with the gear ring (14).

9. A lactose crystallization and drying device according to claim 8, characterized in that: The driving motor (15) is located on a side of the drum (3) corresponding to the lower baffle (9).

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