Hot air circulation drying box for pharmacy

Abstract

The utility model discloses a hot air circulation drying box for pharmacy, which belongs to the field of hot air circulation drying boxes and comprises a box body, an upper box door, a lower box door, moving wheels, a heating cavity, a heating fan, an air draft circulation device, a controller and a drying cavity. An inner cavity of the box body is divided into a drying cavity and a heating cavity, the heating cavity is located at the lower end of the drying cavity, and the heating fan is installed in the heating cavity. And a suspension frame and a built-in filter screen cover are designed to ensure that the medicine is uniformly distributed in the drying cavity. And meanwhile, the medicine is dried in all directions through the rotating function of the blades, so that the problem of uneven drying is effectively solved, and the drying quality is remarkably improved. In addition, the heating fan directly faces the blades to blow air, and the movable sleeve and the suspension frame are driven to rotate. By means of the direct driving mode, loss in the energy transfer process is reduced, the heat energy utilization efficiency is improved, and the drying process is more efficient.

Description

Technical Field

[0001] The utility model relates to the field of hot air circulation drying boxes, in particular to a hot air circulation drying box for pharmaceutical use. Background Art

[0002] After searching, it was found that the Chinese patent publication number CN208108671U disclosed a "hot air circulation oven for pharmaceutical preparation", which includes a box body, a drying car, a drawer structure, a dehumidifier and a steel grating; the outer side of the box body is provided with a box door, the upper side of the box body is provided with a circulation fan, the lower side of the circulation fan is provided with an air outlet, the upper side of the circulation fan is provided with a second connecting pipe, the lower side of the second connecting pipe is provided with a dehumidifier, the lower side of the dehumidifier is provided with a first connecting pipe, the lower end of the first connecting pipe is provided with an air intake port, and the air intake port extends through the box body. Inside the bottom, a filter cover is provided at the end of the air inlet; a partition is provided on the upper side of the air inlet inside the box, a steel grating is provided in the middle of the partition, and the steel grating passes through the partition, a vibration motor is provided on the lower side of the steel grating, hydraulic cylinders are provided on both sides of the steel grating, and a vibration spring is provided at the contact end position of the hydraulic cylinder and the steel grating, a fixing frame is provided on the upper side of the steel grating, and a pin is provided at the right corner of the fixing frame, a drying car is provided on the fixing frame, and a plurality of drawers are provided on the drying car, a heat conduction plate is provided on the lower side of the drawer, and a heating layer is provided at the back of the drying car;

[0003] Although the drawer-type medicine storage structure design is convenient for storing materials independently, when the hot air passes through each drawer, it is difficult for the hot air to flow evenly due to the drawer spacing and obstacles. This uneven hot air distribution causes the materials in the drawer to be heated inconsistently, with some materials being heated too much and others being heated insufficiently, thus affecting the drying effect. Materials that are heated too much lose water quickly, while materials that are not heated enough dry slowly, which not only prolongs the overall drying time, but may also cause problems with over-drying or under-drying of materials. To address this issue, it may be necessary to increase the power of the hot air circulation system or extend the drying time, which will undoubtedly increase the energy consumption and operating costs of the equipment. Utility Model Content

[0004] The main purpose of the utility model is to provide a hot air circulation drying box for pharmaceutical use, which can effectively solve the problems raised in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] —A hot air circulation drying oven for pharmaceutical use, comprising a box body, an upper box door, a lower box door, moving wheels, a heating chamber, a heating fan, an air extraction and circulation device, a controller and a drying chamber. The upper box door and the lower box door are installed at the upper and lower parts of the front end of the box body through hinge devices. The inner cavity of the box body is divided into a drying chamber and a heating chamber, and the heating chamber is located at the lower end of the drying chamber. The heating fan is installed in the heating chamber, and the air extraction and circulation device and the controller are installed on the top of the box body. The air extraction and circulation device is communicated with the heating chamber through a pipeline.

[0007] A plurality of support devices are installed on the inner cavity wall of the drying chamber. An activity sleeve is installed on each support device, and side frames are annularly distributed on the outer wall of the activity sleeve. Installation sleeves are installed at the corners of the side frames. A suspension frame is installed between two opposite installation sleeves, and a filter mesh cover is installed inside the frame of the suspension frame. A blade is connected to the port of the side frame through a connecting piece.

[0008] The heating fan blows air towards the blade in the drying chamber and drives the activity sleeve to rotate. The heating fan drives the suspension frame to rotate and dries the medicine therein.

[0009] In a preferred embodiment of the present application, ventilation holes are opened on the plate between the heating chamber and the drying chamber. The heating fan is installed at the ventilation holes through bolts, and a heating wire is provided between the heating fan and the ventilation holes.

[0010] In a preferred embodiment of the present application, the air extraction and circulation device includes an air extraction fan, a circulation pump and a circulation pipeline. The air extraction fan is installed on the top inner part of the drying chamber through bolts, and the circulation pump and the circulation pipeline communicate the drying chamber and the heating chamber.

[0011] In a preferred embodiment of the present application, the support device is divided into a support rod and a bearing. The bearing is sleeved on the rod head of the support rod, and the support rod is fixed to the box body through bolts. The activity sleeve contacts the bearing, and a limit ring is arranged in the inner hole of the activity sleeve to limit the movement of the bearing.

[0012] In a preferred embodiment of the present application, the activity sleeve and the side frame are integrally designed, and the cross section of the side frame is designed in a "丿" shape. The installation sleeve is welded and fixed to the side frame, and the suspension frame is installed on the installation sleeve through a rotating shaft. The filter mesh cover is fixed to the suspension frame through bolts.

[0013] In a preferred embodiment of the present application, the connecting piece is composed of a rotating shaft, a nut and a connecting head. The connecting head is sleeved on the rotating shaft, the connecting head is fixed to the side frame through bolts, and the rotating shaft is inserted into the hole at the end of the blade and limited by the nut.

[0014] Compared with the prior art, the present utility model has the following beneficial effects

[0015] In the utility model, the suspension frame and its built-in filter screen are designed to ensure that the medicine is evenly distributed in the drying chamber. At the same time, the rotation function of the blades allows the medicine to be dried in all directions, thereby effectively solving the problem of uneven drying and significantly improving the drying quality. In addition, the heating fan blows directly at the blades to drive the movable sleeve and the suspension frame to rotate. This direct drive method reduces the loss in the energy transfer process, improves the efficiency of heat energy utilization, and makes the drying process more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a display diagram of the box body, movable sleeve, and suspension frame of the utility model;

[0018] Figure 3 It is a front view of the overall structure of the utility model;

[0019] Figure 4 This is a display diagram of the movable sleeve, suspension frame and blades of the utility model;

[0020] Figure 5 This is a display diagram of the movable sleeve and blades of the utility model.

[0021] In the figure: 1. box body; 2. upper box door; 3. lower box door; 4. moving wheel; 5. heating chamber; 6. heating fan; 7. exhaust circulation device; 8. controller; 9. drying chamber; 10. movable sleeve; 11. side frame; 12. suspension frame; 13. filter screen cover; 14. supporting device; 15. mounting sleeve; 16. blades; 17. connecting parts. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1 - Figure 5 As shown, a hot air circulation drying box for pharmaceutical use comprises the following components: a box body 1 as the main structure of the entire drying box; an upper box door 2 and a lower box door 3 are respectively installed at the upper and lower parts of the front end of the box body 1 through hinge devices, so as to facilitate the putting in and taking out of articles; a moving wheel 4 is convenient for the movement and positioning of the drying box; a heating chamber 5 is located at the lower end of a drying chamber 9, and is used to generate and gather heat; a heating fan 6 is installed in the heating chamber 5, and is used to blow heat into the drying chamber 9; an exhaust circulation device 7 comprises an exhaust fan, a circulation pump and a circulation pipeline, and is used to realize air circulation in the drying box; a controller 8 is used to control various functions and parameters of the drying box; the drying chamber 9 is used as the main space for drying medicines;

[0024] A plurality of support devices 14 are installed on the inner cavity wall of the drying chamber 9, and a movable sleeve 10 is installed on each support device 14. Side frames 11 are annularly distributed on the outer wall of the movable sleeve 10, and mounting sleeves 15 are installed at the corners of the side frames 11. A suspension frame 12 is installed between two opposite mounting sleeves 15, and a filter mesh cover 13 is installed in the suspension frame 12. A blade 16 is connected to the port of the side frame 11 through a connecting member 17; a heating fan 6 blows air towards the blade 16 in the drying chamber 9, thereby driving the rotation of the movable sleeve 10. This rotation further drives the rotation of the suspension frame 12, so as to realize uniform drying of the medicine therein; ventilation holes are provided in the plate between the heating chamber 5 and the drying chamber 9, and the heating fan 6 is installed at the ventilation holes through bolts. A heating wire is provided between the heating fan 6 and the ventilation holes to provide the required heat; the exhaust fan of the air extraction and circulation device 7 is installed on the inner top of the drying chamber 9 through bolts, and the circulation pump and the circulation pipeline are connected to the drying chamber 9 and the heating chamber 5 to realize the circulating flow of air.

[0025] The support device 14 is composed of a support rod and a bearing. The bearing is sleeved on the rod head of the support rod and fixed to the box body 1 through bolts. The movable sleeve 10 contacts the bearing, and the movement of the bearing is restricted by a limit ring arranged in its inner hole; the movable sleeve 10 and the side frame 11 are integrally designed, and the cross-section of the side frame 11 is in a "丿" shape. The mounting sleeve 15 is fixedly welded to the side frame 11, the suspension frame 12 is installed on the mounting sleeve 15 through a rotating shaft, and the filter mesh cover 13 is fixed to the suspension frame 12 through bolts; the connecting member 17 is composed of a rotating shaft, a nut and a connecting head. The connecting head is sleeved on the rotating shaft and fixed to the side frame 11 through bolts. The rotating shaft is inserted into the end opening of the blade 16 and limited by a nut.

[0026] Drying process: open the upper door 2, and place the medicine to be dried on the filter screen 13 in the suspension frame 12. The setting of the filter screen 13 helps the medicine to be evenly heated and ventilated, ensuring the drying effect; close the upper door 2 to ensure that the drying box is in a sealed state; set the required drying parameters, such as temperature, time, etc., through the controller 8; start the heating fan 6, and the heating fan 6 blows air towards the blades 16 in the drying chamber 9, thereby driving the movable sleeve 10 to rotate. This rotation further drives the suspension frame 12 to rotate, thereby achieving uniform drying of the medicine; at the same time, the exhaust circulation device 7 is started, the exhaust fan starts working, the air in the drying chamber 9 is extracted, and the air is re-sent into the heating chamber 5 through the circulation pump and the circulation pipe, thereby achieving the circulation of air; the heating wire provides heat between the heating fan 6 and the vent hole, thereby ensuring that the temperature in the drying box reaches the set value; during the drying process, the drying progress can be monitored in real time through the observation window or the display screen on the controller 8; when the medicine is dried, the heating fan 6 and the exhaust circulation device 7 are stopped; the upper box door 2 is opened, and the suspension frame 12 and the medicine therein are taken out; the inside of the drying box is cleaned to prepare for the next drying; the design of the hot air circulation drying box ensures uniform heating and efficient drying of the medicine, thereby improving the drying effect and production efficiency.

[0027] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. However, the terms "include", "comprises" or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or include elements that are inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device that includes the elements.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A hot air circulation drying box for pharmaceutical use, comprising a box body (1), an upper box door (2), a lower box door (3), a moving wheel (4), a heating chamber (5), a heating fan (6), an exhaust circulation device (7), a controller (8) and a drying chamber (9), wherein the upper box door (2) and the lower box door (3) are mounted on the upper and lower parts of the front end of the box body (1) by a hinge device, the inner cavity of the box body (1) is divided into a drying chamber (9) and a heating chamber (5), and the heating chamber (5) is located at the lower end of the drying chamber (9), the heating fan (6) is mounted in the heating chamber (5), the exhaust circulation device (7) and the controller (8) are mounted on the top of the box body (1), and the exhaust circulation device (7) is connected to the heating chamber (5) through a pipeline, characterized in that A plurality of support devices (14) are installed on the inner cavity wall of the drying chamber (9). An activity sleeve (10) is installed on each support device (14). Side frames (11) are annularly distributed on the outer wall of the activity sleeve (10). Mounting sleeves (15) are installed at the corners of the side frames (11). A suspension frame (12) is installed between two opposite mounting sleeves (15). A filter mesh cover (13) is installed inside the frame of the suspension frame (12). A blade (16) is connected to the port of the side frame (11) through a connecting piece (17). The heating blower (6) blows air towards the blade (16) in the drying chamber (9) and drives the activity sleeve (10) to rotate. The heating blower (6) drives the suspension frame (12) to rotate and dries the medicine therein.

2. A pharmaceutical hot air circulation drying oven according to claim 1, characterized in that: Vent holes are formed in the plate between the heating chamber (5) and the drying chamber (9). The heating blower (6) is installed at the vent holes through bolts. A heating wire is arranged between the heating blower (6) and the vent holes.

3. A hot air circulation drying oven for pharmaceutical use according to claim 2, characterized in that: The air extraction and circulation device (7) includes an air extraction fan, a circulation pump and a circulation pipeline. The air extraction fan is installed on the inner top of the drying chamber (9) through bolts. The circulation pump and the circulation pipeline connect the drying chamber (9) and the heating chamber (5).

4. A hot air circulation drying oven for pharmaceutical use according to claim 3, characterized in that: The support device (14) is divided into a support rod and a bearing. The bearing is sleeved on the rod head of the support rod. The support rod is fixed on the box body (1) through bolts. The activity sleeve (10) contacts the bearing. A limit ring is arranged in the inner hole of the activity sleeve (10) to limit the movement of the bearing.

5. A hot air circulation drying oven for pharmaceutical use according to claim 4, characterized in that: The activity sleeve (10) and the side frame (11) are integrally designed. The cross section of the side frame (11) is designed in a shape of "丿". The mounting sleeve (15) is fixedly welded to the side frame (11). The suspension frame (12) is installed on the mounting sleeve (15) through a rotating shaft. The filter mesh cover (13) is fixed on the suspension frame (12) through bolts.

6. A hot air circulation drying oven for pharmaceutical use according to claim 5, characterized in that: The connecting piece (17) is composed of a rotating shaft, a nut and a connecting head. The connecting head is sleeved on the rotating shaft. The connecting head is fixed on the side frame (11) through bolts. The rotating shaft is inserted into the opening at the end of the blade (16) and is limited by the nut.

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