Air mixing structure of fluidized bed

Abstract

The utility model discloses an air mixing structure of a fluidized bed, which relates to the technical field of fluidized bed pharmacy and comprises a base and a wrapping mechanism, a round tube is connected below one side of the base, the wrapping mechanism for reducing heat loss is arranged on the outer surface of the round tube, a left end cover is mounted on one side in the round tube, and a right end cover is mounted on the other side in the round tube. A base is installed at the front end of the left end cover, and a transmission shaft is arranged in the middle of the inner side of the base. Compared with an existing device, the air mixing device formed by the left end cover, the base, the impeller, the transmission shaft, the bearing and other parts can enable air to rotate automatically, so that the air moving straightly is stirred by the impeller to move in a rotational flow mode, and then the rear air is sucked to the base through a tail end draught fan after being mixed; in this way, the temperature of air blown into the base can be mixed more evenly, and stable drying of fluidized bed pharmacy is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of fluidized bed pharmaceutical technology, specifically to a fluidized bed mixed air structure. Background Technology

[0002] In the pharmaceutical manufacturing process, fluidized bed reactors require clean air at an appropriate temperature supplied by an air intake hood and negative pressure provided by a fan. The airflow is then fluidized by a distribution plate, thereby drying the material. Inlet air temperature is a critical parameter in the pharmaceutical process; its stability and fluctuation range directly affect the yield of the drug. Therefore, improving the uniformity of the inlet air temperature is essential.

[0003] The existing air inlet cabinet is connected to the equipment base through a valve. As the hot air rises, the air will be stratified in the channel, resulting in a high temperature at the top and a low temperature at the bottom. Furthermore, the temperature of the incoming air fluctuates greatly, which affects the drying of the materials.

[0004] Therefore, we studied and improved the existing structure and its shortcomings, and provided a fluidized bed mixing structure in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this invention is to provide a fluidized bed air mixing structure to solve the problem mentioned in the background art that, after the existing air inlet cabinet and equipment base are connected by valves, the hot air rises and the air will be stratified in the channel, resulting in a high temperature at the top and a low temperature at the bottom of the channel, and the detection of large fluctuations in the air inlet temperature, which affects the drying of materials.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fluidized bed mixing structure, including a base and a wrapping mechanism. A circular tube is connected to the lower side of one side of the base. The wrapping mechanism, used to reduce heat loss, is disposed on the outer surface of the circular tube. A left end cover is installed on one side of the inner side of the circular tube, and a base is installed at the front end of the left end cover. A drive shaft is disposed in the middle of the inner side of the base, and a bearing is disposed on the outer side of the front end of the drive shaft. An impeller is installed at the front end of the drive shaft, and a flat square limiting bolt is installed in the middle of the impeller.

[0007] Furthermore, a thermometer is installed above one end of the outer side of the circular tube, and a butterfly valve is installed on the other side of the inner side of the circular tube.

[0008] Furthermore, an air intake heating cabinet is provided at the end of the circular tube away from the base, and the air intake heating cabinet, the circular tube, and the base are connected.

[0009] Furthermore, the wrapping mechanism includes an insulating cotton sleeve and a connecting line, with the connecting line located on the upper outer surface of the insulating cotton sleeve.

[0010] Furthermore, the packaging mechanism also includes snap-fit ​​buttons, and snap-fit ​​buttons are installed on the inner side of the connecting line.

[0011] Furthermore, the wrapping mechanism also includes a vacuum chamber, which is provided in the middle of the inner side of the thermal insulation cotton cover.

[0012] Compared with the prior art, the present invention provides a fluidized bed air mixing structure, which has the following beneficial effects:

[0013] 1. This utility model uses a mixing device formed by parts such as a left end cover, base, impeller, drive shaft, and bearings to make the wind rotate automatically, so that the horizontally moving wind is stirred by the impeller and moves in a swirling motion, so that the wind behind is mixed and then drawn to the base by the end fan. This makes the temperature of the wind blown into the base more uniform, which is beneficial to the stable drying of fluidized bed pharmaceuticals.

[0014] 2. By coordinating the various parts of the wrapping mechanism, this utility model can reduce the loss of airflow temperature inside the circular tube, thereby ensuring the high efficiency of fluidized bed pharmaceutical drying while also reducing energy consumption. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an impeller for a fluidized bed mixing structure according to the present invention;

[0016] Figure 2 This is a schematic diagram of the overall external front view of a fluidized bed mixing structure according to the present invention;

[0017] Figure 3 This utility model relates to a fluidized bed air mixing structure. Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a side view of the internal structure of a fluidized bed mixing air structure wrapping mechanism according to the present invention.

[0019] In the diagram: 1. Base; 2. Thermometer; 3. Round tube; 4. Butterfly valve; 5. Air inlet heating cabinet; 6. Left end cover; 7. Base; 8. Drive shaft; 9. Bearing; 10. Impeller; 11. Flat square limit bolt; 12. Wrapping mechanism; 1201. Insulation cotton sleeve; 1202. Connecting wire; 1203. Snap-fit ​​buckle; 1204. Vacuum chamber. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] like Figures 1-3 As shown, a fluidized bed mixing structure includes a base 1 and a wrapping mechanism 12. A circular tube 3 is connected to the lower side of one side of the base 1. The wrapping mechanism 12, which is used to reduce heat loss, is disposed on the outer surface of the circular tube 3. A left end cover 6 is installed on one side of the inner side of the circular tube 3, and a base 7 is installed at the front end of the left end cover 6. A drive shaft 8 is disposed in the middle of the inner side of the base 7, and a bearing 9 is disposed on the outer side of the front end of the drive shaft 8. An impeller 10 is installed at the front end of the drive shaft 8, and a flat square limiting bolt 11 is installed in the middle of the impeller 10.

[0023] The base 7 and its front impeller 10 can be installed in the middle of the inner side of the circular tube 3 through the left end cover 6. The impeller 10 is installed on the drive shaft 8 through the flat square limit bolt 11. Through the drive shaft 8 and the bearing 9, the impeller 10 can be automatically rotated when the wind passes through the circular tube 3, so that the straight-moving wind is stirred by the impeller 10 and moved in a swirling motion, so that the wind behind is mixed and then sucked into the base 1 by the end fan. This makes the temperature of the wind blown into the base 1 more uniform, which is beneficial to the stable drying of fluidized bed pharmaceuticals.

[0024] like Figure 2 and Figure 4 As shown, a thermometer 2 is installed above one end of the outer surface of the circular tube 3, and a butterfly valve 4 is installed on the other side of the inner surface of the circular tube 3. An air inlet heating cabinet 5 is installed at the end of the circular tube 3 away from the base 1, and the air inlet heating cabinet 5, the circular tube 3, and the base 1 are connected. The wrapping mechanism 12 includes an insulation cotton sleeve 1201 and a connecting line 1202. The connecting line 1202 is installed above the outer surface of the insulation cotton sleeve 1201. The wrapping mechanism 12 also includes a snap-fit ​​buckle 1203, and a snap-fit ​​buckle 1203 is installed on the inner side of the connecting line 1202. The wrapping mechanism 12 also includes a true A vacuum chamber 1204 is provided in the middle of the inner side of the cavity 1201 and the insulation cotton sleeve 1201. The start and stop of air intake and air volume can be controlled by the butterfly valve 4 and the thermometer 2. At the same time, the temperature of the air can be monitored. The insulation cotton sleeve 1201 can be put on the outside of the circular tube 3 through the connecting line 1202 and the snap fastener 1203. Through the insulation cotton sleeve 1201 and the vacuum chamber 1204, the loss of airflow temperature inside the circular tube 3 can be reduced, thereby ensuring the high efficiency of fluidized bed pharmaceutical drying and also helping to reduce energy consumption.

[0025] Working Principle: Using this fluidized bed mixing structure, the base 7 and its front impeller 10 are first installed on the inner side of the circular tube 3 via the left end cover 6. Then, the impeller 10 is mounted on the drive shaft 8 via the flat square limiting bolt 11. Hot air is then introduced into the circular tube 3 through the air inlet heating cabinet 5. Through the drive shaft 8 and bearing 9, the impeller 10 automatically rotates as the air passes through the circular tube 3, causing the horizontally moving air to be agitated and swirled by the impeller 10, thus... After the air from the rear is mixed, it is drawn into the base 1 by the terminal fan, so that the temperature of the air blown into the base 1 is mixed more evenly. At this time, the start and stop of air intake and air volume can be controlled by the butterfly valve 4 and the thermometer 2, and the temperature of the air can also be monitored. Then, through the connecting wire 1202 and the snap fastener 1203, the insulation cotton sleeve 1201 can be put on the outside of the round tube 3. Finally, through the insulation cotton sleeve 1201 and the vacuum chamber 1204, the loss of airflow temperature inside the round tube 3 can be reduced.

[0026] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fluidized bed mixing structure, comprising a base (1) and a wrapping mechanism (12), characterized in that, A circular tube (3) is connected to one side of the base (1). The wrapping mechanism (12) for reducing heat loss is set on the outer surface of the circular tube (3). A left end cap (6) is installed on one side of the inner side of the circular tube (3), and a base (7) is installed at the front end of the left end cap (6). A drive shaft (8) is set in the middle of the inner side of the base (7), and a bearing (9) is set on the outer side of the front end of the drive shaft (8). An impeller (10) is installed at the front end of the drive shaft (8), and a flat square limiting bolt (11) is installed in the middle of the impeller (10).

2. The fluidized bed mixing structure according to claim 1, characterized in that, A thermometer (2) is installed above one end of the outer side of the circular tube (3), and a butterfly valve (4) is installed on the other side of the inner side of the circular tube (3).

3. The fluidized bed mixing structure according to claim 1, characterized in that, An air inlet heating cabinet (5) is provided at the end of the circular tube (3) away from the base (1), and the air inlet heating cabinet (5), the circular tube (3) and the base (1) are connected.

4. A fluidized bed mixing structure according to claim 1, characterized in that, The wrapping mechanism (12) includes an insulating cotton sleeve (1201) and a connecting line (1202), with the connecting line (1202) provided on the upper outer surface of the insulating cotton sleeve (1201).

5. A fluidized bed mixing structure according to claim 4, characterized in that, The packaging mechanism (12) further includes a snap fastener (1203), and the snap fastener (1203) is installed on the inner side of the connecting line (1202).

6. A fluidized bed mixing structure according to claim 4, characterized in that, The wrapping mechanism (12) also includes a vacuum chamber (1204), and the inner middle of the thermal insulation cotton cover (1201) is provided with a vacuum chamber (1204).

Images