Drying box drying structure capable of uniformly heating

Abstract

The utility model provides a drying box drying structure capable of uniformly heating, which comprises a box body, a rotatable drying disc is arranged in the box body, and a blower device is arranged in the box body above the drying disc; a discharging port is eccentrically formed in the drying disc, and a spiral sliding way is arranged below the drying disc. A positioning column is arranged at the circle center of the upper surface of the drying disc, the outer side of the positioning column is sleeved with end caps at intervals from top to bottom, and scraping plates are installed on the end caps. The upper end of the end cap is fixedly connected with a lifting device. The rotary drying disc and the fixed feeding pipe are adopted, and granular materials can be evenly spread on the drying disc along with rotation of the drying disc. And secondly, the relatively fixed scraping plate is adopted, the scraping plate can shovel up and turn over the particles on the lower layer in the rotating process of the drying disc, the contact area of the particles on the lower layer and hot air is increased, and therefore the drying degree is overall uniform. And finally, the trend of the spiral slide way is matched with the rotating track of the discharging port, and even if the drying disc rotates, discharging can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of pharmaceutical preparations, in particular to a drying box drying structure capable of being evenly heated. Background Art

[0002] Granules are a common dosage form of medicines. After granulation, they need to go through a drying step to remove moisture and maintain a long storage period. The existing drying method of the drying oven is static drying, that is, the pharmaceutical granules are spread on a tray and placed in an oven to stand, and the hot air and high temperature in the oven are used to dehydrate and dry the pharmaceutical granules. However, this method is affected by the thickness of the pharmaceutical granule layer and cannot achieve comprehensive and uniform drying. The granules on the upper layer have a long contact time with the hot air and are dried first, while the granules on the lower layer are blocked by other granules and cannot be exposed to the hot air, so they are dried last. At this time, the granules on the upper layer have been over-dried and are prone to cracking. Therefore, the present application proposes a drying structure of a drying oven that can be evenly heated to solve the problem of uneven drying of pharmaceutical granules in the existing drying oven. Utility Model Content

[0003] The purpose of the present application is to provide a drying box drying structure that can be heated evenly, aiming to solve the above-mentioned problems in the prior art.

[0004] The embodiment of the present application provides a drying box drying structure capable of uniform heating, comprising a box body, a rotatable drying plate being arranged in the box body, and an air blowing device being arranged in the box body above the drying plate; a discharge port being eccentrically arranged on the drying plate, and a gate switch being arranged on the drying plate corresponding to the discharge port; a spiral slide being arranged below the drying plate, and the spiral slide corresponding to a path formed by the rotation of the discharge port; a positioning column being arranged at the center of the upper surface of the drying plate, and end caps being sleeved on the outer side of the positioning column from top to bottom at intervals, and a scraper being mounted on the end cap, and the scraper being close to the upper surface of the drying plate; and a lifting device being fixedly connected to the upper end of the end cap.

[0005] Furthermore, a sleeve column is arranged below the drying plate, a gap is provided between the sleeve column and the drying plate, a motor assembly is installed in the sleeve column, and the motor assembly is transmission-connected to the center of the drying plate.

[0006] Furthermore, the spiral slide is installed on the outside of the sleeve column, and spirally extends downward with the sleeve column as the center, and the lower end of the spiral slide extends to the outside of the box to form a drying outlet.

[0007] Furthermore, the lifting device includes a piston rod that moves vertically, the end cap is sleeved on the end of the piston rod, and the end cap and the piston rod are fixedly connected by bolts.

[0008] Furthermore, the scraper is in an inclined state, the front surface of the scraper forms an acute angle with the surface of the drying disk, and the front surface of the scraper faces the rotation direction of the drying disk.

[0009] Furthermore, a feed pipe is installed on the side of the box body, and the feed pipe extends above the drying plate.

[0010] The beneficial effects of the utility model are as follows: the utility model adopts a rotating drying plate and a fixed feed pipe, and the granular material can be evenly spread on the drying plate as the drying plate rotates. Secondly, the utility model adopts a relatively fixed scraper, which can scoop up the lower layer of particles and turn them over during the rotation of the drying plate, thereby increasing the contact area between the lower layer of particles and the hot air, thereby making the overall degree of drying uniform. Finally, the trend of the spiral slideway cooperates with the rotation trajectory of the discharge port, so that the material can be discharged even when the drying plate is rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at point A in the middle.

[0013] Figure 3 It is a structural schematic diagram of the spiral slide.

[0014] In the figure:

[0015] 1. Box body; 2. Drying plate; 3. Feed pipe; 4. Positioning column; 5. End cap; 6. Scraper; 7. Piston rod; 8. Bolt; 9. Discharge port; 10. Gate; 11. Spiral slide; 12. Sleeve column; 13. Motor assembly. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] like Figure 1 The drying structure of a drying box capable of uniform heating is shown, comprising a box body 1, a rotatable drying plate 2 is arranged in the box body 1, a feeding pipe 3 is installed on the side of the box body 1, and the feeding pipe 3 extends above the drying plate 2 to feed materials into the drying plate 2. An air blowing device is usually arranged in the box body 1 above the drying plate 2; the air blowing device usually comprises a heater and a fan, and the heater and the fan are used together to generate hot air, and the hot air is blown to the drying plate 2 to dry the granules in the drying plate 2.

[0018] A positioning column 4 is provided at the center of the upper surface of the drying plate 2, and an end cap 5 is sleeved on the outer side of the positioning column 4 from top to bottom, so that the positioning column 4 rotates with the drying plate 2, and the end cap 5 remains stationary. A scraper 6 is installed on the end cap 5, and the scraper 6 is close to the upper surface of the drying plate 2. The scraper 6 is in an inclined state, and the front surface of the scraper 6 forms an acute angle with the surface of the drying plate 2, and the front surface of the scraper 6 faces the rotation direction of the drying plate 2. When the drying plate 2 rotates, the scraper 6 is stationary, and when the pharmaceutical particles accumulated on the drying plate 2 encounter the scraper 6, they will be scooped up and turned over from above the scraper 6, so that the particles accumulated on the lower layer are turned to the upper layer to contact the hot air and be dried, or the scooping process increases the contact area between the lower layer particles and the hot air so that the lower layer particles can also be dried, so that the pharmaceutical particles on the drying plate 2 are evenly dried and the drying effect is good.

[0019] In addition, the feed pipe 3 is arranged on one side of the drying plate 2. The rotating drying plate 2 can make the feed evenly spread on the surface of the drying plate 2, instead of accumulating only on one side of the drying plate 2, resulting in a phenomenon in which the particles close to the feed pipe 3 are highly accumulated and the particles far from the feed pipe 3 are sparse, thereby ensuring that the particles on the drying plate 2 are evenly spread and dried.

[0020] The upper end of the end cap 5 is fixedly connected with a lifting device. The lifting device can be a pneumatic cylinder or an electric cylinder. The lifting device includes a vertically movable piston rod 7. The end cap 5 is sleeved on the end of the piston rod 7, and the end cap 5 and the piston rod 7 are fixedly connected by bolts 8. Figure 2 As shown. The use of the scraper 6 is optional. When necessary, the end cap 5 can be driven down to the positioning column 4 by the lifting device. The positioning column 4 is used to position the end cap 5. The scraper 6 is fixed together with the end cap 5 and the piston rod 7 so that the scraper 6 and the drying plate 2 are relatively independent and are not affected by the rotation of the drying plate 2. When the scraper 6 is not needed, the lifting device can be driven to drive the end cap 5 to rise and leave the positioning column 4, and the drying plate 2 can be rotated to evenly spread the granules.

[0021] The drying plate 2 is eccentrically provided with a discharge port 9, and a gate 10 switch is provided on the drying plate 2 corresponding to the discharge port 9. A spiral slide 11 is provided below the drying plate 2, and the spiral slide 11 corresponds to the path formed by the rotation of the discharge port 9. The gate 10 switch can be a rotating or translational gate 10. When the drying is completed, the gate 10 is moved away from the discharge port 9 to expose the discharge port 9. The granules fall from the discharge port 9 to the spiral slide 11 below under the action of gravity. At the same time, the scraper 6 can be reversed and play a certain role in assisting the discharge. Since the spiral slide 11 moves along the rotation path of the discharge port 9, the spiral slide 11 can also receive the discharge during the rotation of the drying plate 2.

[0022] A sleeve column 12 is provided below the drying plate 2, and there is a gap between the sleeve column 12 and the drying plate 2, so that the sleeve column 12 remains stationary when the drying plate 2 rotates. A motor assembly 13 is installed in the sleeve column 12, and the motor assembly 13 is connected to the center of the drying plate 2. Figure 3 As shown, the spiral slide 11 is installed on the outside of the sleeve 12 and spirally extends downward with the sleeve 12 as the center. The lower end of the spiral slide 11 extends to the outside of the box 1 to form a drying outlet, so that the received pharmaceutical particles can be discharged from the box 1 along the spiral slide 11.

[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A drying oven drying structure that can be heated evenly. It is characterized in that It comprises a box body, a rotatable drying plate is arranged in the box body, an air blowing device is arranged in the box body above the drying plate; a discharge port is eccentrically arranged on the drying plate, and a gate switch is arranged on the drying plate corresponding to the discharge port; a spiral slide is arranged below the drying plate, and the spiral slide corresponds to the path formed by the rotation of the discharge port; a positioning column is arranged at the center of the upper surface of the drying plate, and end caps are sleeved on the outer side of the positioning column from top to bottom, and a scraper is installed on the end cap, and the scraper is close to the upper surface of the drying plate; a lifting device is fixedly connected to the upper end of the end cap.

2. The drying box drying structure capable of uniform heating according to claim 1, It is characterized in that A sleeve column is arranged below the drying plate, a gap is provided between the sleeve column and the drying plate, a motor assembly is installed in the sleeve column, and the motor assembly is connected to the center of the drying plate by transmission.

3. The drying box drying structure capable of uniform heating according to claim 2, It is characterized in that The spiral slide is installed on the outside of the sleeve column and spirally extends downward with the sleeve column as the center. The lower end of the spiral slide extends outside the box to form a drying outlet.

4. The drying box drying structure capable of being uniformly heated according to claim 1, It is characterized in that The lifting device comprises a piston rod which moves vertically, the end cap is sleeved on the end of the piston rod, and the end cap and the piston rod are fixedly connected by bolts.

5. The drying box drying structure capable of uniform heating according to claim 1, It is characterized in that The scraper is in an inclined state, the front surface of the scraper forms an acute angle with the surface of the drying disk, and the front surface of the scraper faces the rotating direction of the drying disk.

6. The drying box drying structure capable of being uniformly heated according to claim 1, It is characterized in that A feeding pipe is installed on the side of the box body, and the feeding pipe extends above the drying plate.

Images