Drying fluidized bed for granule preparation
By designing a drying fluidized bed, the problems of uneven drying and material accumulation in traditional equipment were solved, achieving uniform drying and efficient discharge of granules, thus improving product quality and production efficiency.
Patent Information
- Application Number
- CN202422702555.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-06
AI Technical Summary
Traditional granule drying equipment suffers from uneven drying, material accumulation and blockage, and high energy consumption, which affect product quality and production efficiency.
A drying fluidized bed was designed, comprising a drying chamber, a vibrating motor, hot air ducts, a screen, and a receiving trough. By uniformly distributing the hot air ducts and outlets, flexibly adjusting the screen tilt angle, and employing a special receiving trough structure, uniform drying and efficient discharge of granules are achieved.
This method achieves uniform drying of granules, improves product quality and production efficiency, reduces material loss and equipment maintenance difficulty, and meets energy conservation and environmental protection requirements.
Smart Images
Figure CN223525457U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the granule drying field, specifically, relate to a kind of drying fluidized bed for granule preparation. BACKGROUND
[0002] In the pharmaceutical, chemical industry etc., the preparation of granule is an important production link. Among them, drying is one of the key steps in the preparation process of granule, and its effect directly affects the quality and performance of granule.
[0003] Traditional granule drying equipment has some significant problems in practical application. First, uneven drying is one of the common defects. Due to uneven distribution of hot air or poor flow of granule in the drying chamber, some granules are over-dried, while the other part is not dried enough, affecting the consistency and quality stability of the product. In addition, the structural design of traditional equipment may cause material to be easily accumulated or blocked during drying, reducing production efficiency and increasing cleaning and maintenance difficulty. Moreover, some drying equipment has high energy consumption and low thermal efficiency, which not only increases production cost, but also does not meet the requirements of energy saving and environmental protection. SUMMARY
[0004] The utility model is just based on the above technical problems, and proposes a drying fluidized bed for granule preparation.
[0005] A drying fluidized bed for granule preparation, comprising a drying bin, the bottom of the drying bin is provided with an array of springs, the lower end of the spring is fixedly connected with the bottom plate, the side of the drying bin is provided with a vibration motor for vibrating the drying bin, the top of the drying bin is provided with an air extraction device, an air extraction pipe and a granule discharge pipe located in the middle of the top of the drying bin, the bottom of the drying bin is provided with a hot air pipe, the upper side of the hot air pipe is provided with a plurality of air outlets, the outside of the hot air pipe is connected with a hot air fan, the middle of the drying bin is provided with a screen, the two ends of the screen are arc-shaped, the middle of the screen is provided with a rotating shaft, the two ends of the rotating shaft are rotatably connected with the inner wall of the drying bin, the end of the screen is provided with an extension rod, the upper end of the extension rod is hingedly connected with the lower side of the screen, and the lower end of the extension rod is fixedly connected with the bottom of the drying bin, one end wall of the drying bin is provided with a discharge port, the inner side of the discharge port is provided with an extension plate, the extension plate is located below the screen, and the outer side of the discharge port is provided with a material collecting groove.
[0006] Preferably, the hot air pipe can be provided with multiple, and uniformly distributed at the bottom of the drying bin, the outer ends of the multiple hot air pipes are uniformly communicated with the air collecting pipe, and the air collecting pipe is communicated with the hot air fan through the air supply pipe.
[0007] Preferably, the diameter of the air outlet gradually decreases from far to near based on the distance from the air collecting pipe.
[0008] Preferably, two telescopic rods are arranged at each end of the screen, and the telescopic rods are symmetrically arranged.
[0009] Preferably, the extension plate is inclined upwardly rearwardly, the rear end of the extension plate is provided with a folded baffle, the tail of the folded baffle is provided with small springs uniformly spaced, and the upper end of the folded baffle is in contact with one end of the screen.
[0010] Preferably, the collecting groove is arranged downwardly inclined, and the collecting groove is gradually contracted to the central axis to form a triangular groove body from rear to front.
[0011] Beneficial effects:
[0012] 1. The design of the hot air pipe and the air outlet effectively improves the distribution of hot air, multiple hot air pipes are uniformly distributed at the bottom of the drying bin, and the hot air can fully cover the entire drying area; and the diameter of the air outlet gradually changes according to the distance from the air collecting pipe, so that the temperature of each part in the drying bin is uniform, and the drying effect is further improved.
[0013] 2. The arc-shaped design of the two ends of the screen and the rotating shaft in the middle, combined with the adjustment of the telescopic rod, can flexibly change the inclination angle of the screen, and the granules dried by the inclined screen will fall onto the extension plate and enter the collecting groove through the discharge port.
[0014] 3. The design of the extension plate and the folded baffle effectively prevents the granules from splashing and scattering during the discharging process, ensures the cleanliness of the working environment and the collection efficiency of the materials, and the small springs play a buffering and blocking role, further reducing the loss of granules.
[0015] 4. The special structure design of the collecting groove, which is downwardly inclined and gradually contracted into a triangular groove body from rear to front, not only facilitates the collection of granules after screening, but also enables the materials to automatically slide towards the discharging direction, improves the smoothness and efficiency of discharging, and reduces the accumulation and blockage of materials at the discharge port. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 The structure schematic view of the present application is shown.
[0017] Fig. 2 The internal structure diagram of the present application is shown. DETAILED DESCRIPTION
[0018] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0019] AsFigs. 1-2 The drying fluidized bed for granule preparation mainly consists of a drying bin 1, springs 2, a vibrating motor, an air extraction device 4, an air extraction pipe 5, a granule discharging pipe 6, a hot air pipe 9, a screen 12, telescopic rods 11, a discharge port 14, an extension plate 15, a material collecting groove 16 and the like.
[0020] The springs 2 are arranged in an array at the bottom of the drying bin 1, and the lower ends thereof are fixedly connected with a bottom plate 3. The springs 2 provide elastic support for the drying bin 1, so that the drying bin 1 can vibrate under the action of a vibrating motor (not shown), thereby facilitating the flow and tumbling of the granules in the bin and improving the uniformity of drying.
[0021] The vibrating motor is installed on the side of the drying bin 1, and its function is to make the drying bin 1 vibrate, so that the granules constantly change positions during the drying process and are fully contacted with hot air, thereby ensuring the consistency of the drying effect.
[0022] The air extraction device 4 and the air extraction pipe 5 are arranged at the top of the drying bin 1, and are used to exhaust the moisture and waste gas in the bin and maintain a dry environment in the bin. The granule discharging pipe 6 located in the middle of the top is a channel for the granules to enter the drying bin 1.
[0023] The hot air pipe 9 is arranged at the bottom of the drying bin 1, and provides hot air through a hot air blower connected externally. The hot air pipe 9 has a plurality of air outlets 10 on the upper side thereof, which blow hot air into the drying bin 1 to dry the granules.
[0024] The screen 12 in the middle of the drying bin 1 has a circular arc shape at both ends, and is provided with a rotating shaft 13 in the middle portion. The both ends of the screen 12 are rotatably connected with the inner wall of the drying bin 1, and the end portions are provided with telescopic rods 11. The screen 12 is used for screening the granules, and the inclination angle of the screen 12 can be adjusted through the extension and contraction of the telescopic rods 11, thereby controlling the discharge of the granules.
[0025] Two symmetrical telescopic rods 11 are arranged at both ends of the screen 12, which provide stable support for the screen 12 and accurately adjust the angle of the screen 12.
[0026] The discharge port 14 on one end wall of the drying bin 1 is an outlet through which the screened granules leave the drying bin 1. The extension plate 15 on the inner side of the discharge port 14 is inclined upward and rearward, which can guide the granules to flow out smoothly and avoid accumulation in the discharge port 14. The folded baffle 17 at the rear end of the extension plate 15 shrinks downward along with the inclination of the screen 12, which can prevent the granules from splashing, and the small springs at the tail thereof play a buffering and blocking role, further reducing the loss of the granules.
[0027] The material collecting groove 16 outside the discharge port 14 is inclined downward, and the groove body gradually shrinks toward the central axis from the rear to the front, forming a triangular groove body, which is convenient for collecting and discharging the materials, and enables the granules to be smoothly concentrated and transported.
[0028] The plurality of hot air pipes 9 are uniformly distributed at the bottom of the drying bin 1 and are communicated with the hot air machine through the air collecting pipe 8 and the air feeding pipe 7, so that the hot air can uniformly fill the whole drying bin 1 and avoid local temperature difference.
[0029] The diameter of the air outlet 10 gradually decreases from far to near, which is considering the heat loss of the hot air in the transmission process, by decreasing the diameter of the air outlet 10 far away, increasing the air speed and air volume, so as to compensate the heat loss and ensure the uniform temperature in the drying bin 1.
[0030] In summary, the synergistic effect of the components realizes the efficient drying and screening of the granules, and improves the product quality and production efficiency.
[0031] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A drying fluidized bed for granule preparation, comprising a drying bin, the bottom of the drying bin is provided with an array of springs, the lower end of the spring is fixedly connected with a bottom plate, the side of the drying bin is provided with a vibrating motor for vibrating the drying bin, the top of the drying bin is provided with an air extraction device and an air extraction pipe and a granule discharging pipe located in the middle of the top of the drying bin, characterized in that, The bottom of the drying bin is provided with a hot air pipe, the upper side of the hot air pipe is provided with a plurality of air outlets, the outside of the hot air pipe is connected with a hot air machine, the middle of the drying bin is provided with a screen, the two ends of the screen are arc-shaped, the middle of the screen is provided with a rotating shaft, the two ends of the rotating shaft are rotationally connected with the inner wall of the drying bin, the end of the screen is provided with an extension rod, the upper end of the extension rod is hingedly connected with the lower side of the screen, and the lower end of the extension rod is fixedly connected with the bottom of the drying bin, one end wall of the drying bin is provided with a discharge port, the inner side of the discharge port is provided with an extension plate, the extension plate is located below the screen, and the outer side of the discharge port is provided with a material collecting groove.
2. The drying fluidized bed for granule preparation according to claim 1, characterized in that, The hot air pipe can be provided with multiple hot air pipes, which are uniformly distributed at the bottom of the drying bin, the outer ends of the multiple hot air pipes are uniformly communicated with the air collecting pipe, and the air collecting pipe is communicated with the hot air machine through the air supply pipe.
3. The drying fluidized bed for granule preparation according to claim 2, characterized in that, The diameters of the air outlets gradually decrease from far to near based on the distance from the air collecting pipe.
4. The drying fluidized bed for granule preparation according to claim 1, characterized in that, Two extension rods are arranged at each end of the screen, and the extension rods are symmetrically arranged.
5. The drying fluidized bed for granule preparation according to claim 1, characterized in that, The extension plate is inclined upward and rearward, the rear end of the extension plate is provided with a folded baffle, the tail of the folded baffle is provided with small springs which are uniformly spaced, and the upper end of the folded baffle is in contact with one end of the screen.
6. The drying fluidized bed for granule preparation according to claim 1, characterized in that, The material collecting groove is inclined downward, and the groove body of the material collecting groove gradually shrinks to the central axis from the rear to the front to form a triangular groove body.