Bulk drug drying device

Abstract

The utility model discloses a raw material medicine drying device, which belongs to the technical field of drying machines, and comprises a box body, a heat pump assembly, a first fan and a steam heat exchanger, a working space is arranged in the box body, an air inlet and an air outlet are arranged on the box body, the heat pump assembly comprises a main machine, an evaporator and a condenser, the evaporator is communicated with the air outlet, and the condenser is communicated with the first fan. The condenser is communicated with the first fan, and the first fan is communicated with the air inlet. The raw material medicine drying device can dry raw material medicine in the box body through the heat pump and steam, the heat pump assembly can be independently used, the low drying temperature is obtained, when the steam heat exchanger is put into use, the air temperature in the box body can be increased, the drying hot air flow can reach 100 DEG C, and the drying speed and efficiency are improved through the air with the higher temperature; the temperature adjusting range of drying air is wider, and the range of the drying device applicable to bulk drugs is wider; the direction of air flow in the box body can be adjusted, and the drying box is suitable for drying raw material medicines of different wet materials or liquid materials.

Description

Technical Field

[0001] The utility model belongs to the technical field of drying machines, and in particular relates to a device for drying raw medicines. Background Art

[0002] API dryer is one of the commonly used equipment in the pharmaceutical industry. Its purpose is to dry wet or liquid APIs to eliminate moisture. This process plays a vital role in the quality and safety of drugs. In the pharmaceutical industry, there are many common drying methods, including natural drying, heated air drying, and vacuum drying. Among them, heat pump hot air dryer is a widely used equipment. It is widely used because of its high efficiency, energy saving, simple operation and good drying results. However, the hot air flow temperature that can be provided by existing heat pump hot air dryers is limited, generally around 70°C. For APIs that can withstand high-temperature drying, the hot air drying speed of 70°C is slow and the efficiency is low. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a raw material medicine drying device capable of increasing the drying air temperature.

[0004] Technical solution: In order to solve the above technical problems, the technical solution adopted by this utility model is as follows:

[0005] A raw material drug drying device includes a housing, a heat pump assembly connected to the housing, a first fan connected to the heat pump assembly, and a steam heat exchanger arranged in the housing. A working space for accommodating a drying rack is provided in the housing. An air inlet and an air outlet communicating with the working space are provided on the housing. The heat pump assembly includes a main unit, an evaporator connected to the main unit, and a condenser connected to the evaporator. The evaporator is communicated with the air outlet, the condenser is communicated with the first fan, and the first fan is communicated with the air inlet.

[0006] Furthermore, a first air distribution duct and a second air distribution duct connected to the air inlet are provided in the box body, the first air distribution duct is provided with a plurality of first air distribution outlets, and the second air distribution duct is provided with a plurality of second air distribution outlets.

[0007] Furthermore, the plurality of first air distribution outlets are arranged on the sides of the workspace, and the plurality of second air distribution outlets are arranged on the top of the workspace.

[0008] Furthermore, the first air distribution duct is provided with a first air valve, and the second air distribution duct is provided with a second air valve.

[0009] Furthermore, the box body is provided with a steam inlet pipe and a steam outlet pipe connected to the steam heat exchanger, and the steam heat exchanger is provided with heat exchange fins.

[0010] Furthermore, the steam heat exchanger is vertically arranged in the working space.

[0011] Furthermore, a bottom plate is provided at the bottom of the working space, a water cavity communicating with the steam heat exchanger is provided in the bottom plate, and a drainage pipe communicating with the water cavity is connected to the bottom plate.

[0012] Furthermore, the air outlet is connected to the evaporator through an air outlet pipe, and the air outlet pipe is connected to a fresh air pipe.

[0013] Furthermore, a condensate pipe is provided at the bottom of the evaporator.

[0014] Furthermore, there is more than one steam heat exchanger.

[0015] Beneficial effects: Compared with the prior art, the utility model has the following advantages:

[0016] 1. By setting up a heat pump component and a steam heat exchanger, the heat pump and steam can be used to dry the raw materials in the box. The heat pump component can be used alone to obtain a lower drying temperature. When the steam heat exchanger is put into use, the air temperature in the box can be increased, and the drying hot air flow can reach 100°C. The higher temperature of the air increases the drying speed and efficiency, and the temperature adjustment range of the drying air is wider. The drying device is suitable for a wider range of raw materials.

[0017] 2. A first air distribution duct and a second air distribution duct are set in the box. The air distribution port of the first air distribution duct is set on the side, and the air distribution port of the second air distribution duct is set on the top. The first air distribution duct and the second air distribution duct can be used simultaneously or separately. The air flow direction in the box is adjustable, which is suitable for drying different wet or liquid raw materials;

[0018] 3. A bottom plate is provided at the bottom of the working space. The bottom plate is provided with a water cavity connected to the steam heat exchanger. The bottom plate serves as an insulation layer to improve the insulation effect of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of an embodiment of the utility model;

[0020] Figure 2 2 is a side structural diagram of an embodiment;

[0021] Figure 3 This is a schematic diagram of the structure inside the box of the embodiment;

[0022] Figure 4 This is a schematic diagram of the first air distribution duct structure of the embodiment;

[0023] Figure 5 This is a schematic diagram of the second air distribution duct structure of the embodiment;

[0024] Figure 6 Schematic diagram of the heat pump assembly connection structure of the embodiment. DETAILED DESCRIPTION

[0025] The present invention will be further illustrated below with reference to specific embodiments. The embodiments are implemented based on the technical solutions of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0026] like Figure 1 and Figure 2 As shown, a raw material drug drying device includes a box body 1, a heat pump assembly, a first fan 3 and a steam heat exchanger 4. The box body 1 is a rectangular box body. An insulation layer can be set around the box body 1 to improve the insulation effect. A working space is provided in the box body 1. A box door 15 for opening the working space is provided on the front of the box body 1. After opening the box door 15, the drying rack 9 can be pushed into the working space, and then the box door 15 is closed. The drying rack 9 adopts an existing tray rack with casters. Multiple layers of trays are placed on the drying rack 9, and the trays are used to hold raw materials.

[0027] like Figure 1 、 Figure 2 、 Figure 3 and Figure 6 As shown, the heat pump assembly is connected to the cabinet 1, and the heat pump assembly includes a main unit 21, an evaporator 22 and a condenser 23. The main unit 21 is arranged on one side outside the cabinet 1, and the main unit 21 includes a compressor 211 and an expansion valve 212. The compressor 211 is connected to the condenser 23 through a refrigerant pipeline, the condenser 23 is connected to the expansion valve 212 through a refrigerant pipeline, the expansion valve 212 is connected to the evaporator 22 through a refrigerant pipeline, and the evaporator 22 is connected to the compressor 211 through a refrigerant pipeline. The refrigerant circulates in the refrigerant pipeline of the heat pump assembly. The evaporator 22 and the condenser 23 both use fin-type heat exchangers to reduce or increase the temperature of the passing air. The evaporator 22 is arranged on one side of the cabinet 1, and the condenser 23 is arranged on the outer top of the cabinet 1. One side of the box body 1 is provided with an air inlet 11 connected to the working space, and the other side is provided with an air outlet 12 connected to the working space. The air outlet 12 is connected to the air duct inlet of the evaporator 22 through the air outlet pipe 121, and the air duct outlet of the evaporator 22 is connected to the air duct inlet of the condenser 23 through the air duct, and the air duct outlet of the condenser 23 is connected to the inlet end of the first fan 3 through the air duct. The first fan 3 is arranged on the other side of the outside of the box body 1, and the outlet end of the first fan 3 is connected to the air inlet 11. After the hot and humid air in the working space reaches the evaporator 22 through the air outlet pipe 121, it is cooled and dehumidified by the evaporator 22, and the moisture in the air condenses. The dehumidified air continues to enter the condenser 23 upward, and after being heated by the condenser 23, it returns to the working space through the air inlet 11 under the action of the first fan 3, and continues to dry the raw materials on the drying rack 9 in the working space.

[0028] like Figure 1 and Figure 2 As shown, the steam heat exchanger 4 is arranged in the working space. The steam heat exchanger 4 adopts a fin-type heat exchanger. Two steam heat exchangers 4 are arranged vertically. The two steam heat exchangers 4 are spaced a certain distance apart. The working space can accommodate two drying racks 9 at the same time. The two drying racks 9 correspond one to one with the two steam heat exchangers 4. The steam heat exchanger 4 is arranged in the working space near the side where the air inlet 11 is located, so that the steam heat exchanger 4 is located upwind of the corresponding drying rack 9. A steam inlet pipe 41 and a steam outlet pipe 42 are provided on the back of the box body 1. The steam inlet pipe 41 and the steam outlet pipe 42 are connected to the steam heat exchanger 4. The steam inlet pipe 41 is used to connect to an external steam source to introduce external steam into the steam heat exchanger 4. The steam in the steam heat exchanger 4 is discharged from the steam outlet pipe 42 after heat exchange with the passing air. In order to improve the heat exchange effect between steam and air, the steam heat exchanger 4 is provided with heat exchange fins 43 to increase the heat exchange area. A bottom plate 14 is provided at the bottom of the working space, and a water cavity connected to the steam heat exchanger 4 is provided in the bottom plate 14. The bottom of the steam heat exchanger 4 is connected to the bottom plate 14 through a pipeline. A drain pipe 141 connected to the water cavity is connected to the bottom plate 14. The drain pipe 141 extends to the outside of the box body 1. The water condensed from the steam in the steam heat exchanger 4 enters the water cavity in the bottom plate 14 and is then discharged through the drain pipe 141.

[0029] like Figure 1 and Figure 3 As shown, the air outlet pipe 121 is connected to a fresh air pipe 122, and a fresh air valve is provided on the fresh air pipe 122. The fresh air pipe 122 is used to introduce external fresh air. A condensate pipe 221 is provided at the bottom of the evaporator 22. The condensate pipe 221 is connected to the drain pipe 141. The condensate in the evaporator 22 enters the drain pipe 141 through the condensate pipe 221 and is discharged.

[0030] like Figure 1 、 Figure 3 、 Figure 4 and Figure 5As shown, a first air distribution duct 5 and a second air distribution duct 6 are provided in the box body 1. The first air distribution duct 5 is in a straight plate shape and is arranged on one side of the working space. The first air distribution duct 5 is provided with multiple first air distribution ports 51 from top to bottom, so that the multiple first air distribution ports 51 are located on the side of the working space. The second air distribution duct 6 is L-shaped and extends to the inner top of the working space. The second air distribution duct 6 is provided with multiple second air distribution ports 61, and the multiple second air distribution ports 61 are located at the top of the working space. The first air distribution duct 5 and the second air distribution duct 6 are connected to the air inlet 11 through a Y-shaped air duct. When the first fan 3 is working, the multiple first air distribution ports 51 blow air from right to left, and the multiple second air distribution ducts 6 blow air from top to bottom. The dry airflow dries the raw materials in the tray on the drying rack 9. A first air valve 52 is provided on the first air distribution duct 5, and a second air valve 62 is provided on the second air distribution duct 6. The two air valves can control the direction of the airflow, thereby controlling the operation of the first air distribution duct 5 or the second air distribution duct 6, and forming drying airflows with different directions in the working space to adapt to the drying work of different wet materials or liquid materials.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A drug substance drying device, characterized in that: The invention comprises a housing (1), a heat pump assembly connected to the housing (1), a first fan (3) connected to the heat pump assembly, and a steam heat exchanger (4) arranged in the housing (1); a working space for accommodating a drying rack (9) is provided in the housing (1); an air inlet (11) and an air outlet (12) communicating with the working space are provided on the housing (1); the heat pump assembly comprises a main unit (21), an evaporator (22) connected to the main unit (21), and a condenser (23) connected to the evaporator (22); the evaporator (22) is communicated with the air outlet (12); the condenser (23) is communicated with the first fan (3); and the first fan (3) is communicated with the air inlet (11).

2. The bulk drug drying device according to claim 1, characterized in that: A first air distribution pipe (5) and a second air distribution pipe (6) connected to the air inlet (11) are provided in the box body (1); the first air distribution pipe (5) is provided with a plurality of first air distribution ports (51), and the second air distribution pipe (6) is provided with a plurality of second air distribution ports (61).

3. The bulk drug drying device according to claim 2, characterized in that: The plurality of first air distribution openings (51) are arranged on the side of the working space, and the plurality of second air distribution openings (61) are arranged on the top of the working space.

4. The bulk drug drying device according to claim 2, characterized in that: The first air distribution pipe (5) is provided with a first air valve (52), and the second air distribution pipe (6) is provided with a second air valve (62).

5. The bulk drug drying device according to claim 1, characterized in that: The box body (1) is provided with a steam inlet pipe (41) and a steam outlet pipe (42) connected to the steam heat exchanger (4), and the steam heat exchanger (4) is provided with heat exchange fins (43).

6. The bulk drug drying device according to claim 1, characterized in that: The steam heat exchanger (4) is vertically arranged in the working space.

7. The bulk drug drying device according to claim 1, characterized in that: A bottom plate (14) is provided at the bottom of the working space, a water cavity communicating with the steam heat exchanger (4) is provided in the bottom plate (14), and a drainage pipe (141) communicating with the water cavity is connected to the bottom plate (14).

8. The bulk drug drying device according to claim 1, characterized in that: The air outlet (12) is connected to the evaporator (22) via an air outlet pipe (121), and a fresh air pipe (122) is connected to the air outlet pipe (121).

9. The bulk drug drying device according to claim 1, characterized in that: A condensate pipe (221) is provided at the bottom of the evaporator (22).

10. The bulk drug drying device according to claim 1, characterized in that: There is more than one steam heat exchanger (4).

Images