Pharmaceutical drying device

Abstract

The utility model relates to a pharmaceutical drying device which structurally comprises a device body, a first drying bin and a second drying bin are arranged in the device body, the first drying bin is located above the second drying bin, and the first drying bin and the second drying bin are separated through a separation mechanism; a feeding port is formed in the upper portion of the device body and communicates with the first drying bin, and a stirring mechanism and an air heater are arranged in the first drying bin. A plurality of drying frames are arranged on the side wall of the lower portion of the device body in a drawing mode and arranged in the second drying bin up and down, a dryer is arranged above each drying frame, and the dryers are located on the inner wall of the second drying bin. The medicine drying device can ensure the medicine drying effect, ensure the drying uniformity, improve the drying efficiency and reduce the influence of residual water on the stability and the storage life of the medicine.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of pharmaceutical equipment, specifically a kind of pharmaceutical drying device. BACKGROUND

[0002] Drug production usually includes the synthesis of bulk drug, drug preparation and packaging, etc., wherein some liquid state drugs need to be dried to obtain solid state drugs in the process of pharmaceutical production. Currently, the common drying methods for liquid state drugs include spray drying, freeze drying, etc.

[0003] These methods have deficiencies in drying efficiency, energy consumption, drug quality, etc. Spray drying is to spray liquid drugs into mist, which is dried by contacting with hot air. Due to uneven distribution of mist droplets during the drying process, it may lead to inconsistent drying degree, and water residue affects drug quality stability and storage life. Freeze drying is to freeze liquid drugs into solid state first, and then remove water by sublimation. Although it can better preserve active ingredients of drugs, it has long drying time, and may have problems of local over-drying or insufficient drying, which affects drug stability and storage life. SUMMARY

[0004] The purpose of the utility model is to provide a kind of pharmaceutical drying device to solve the problem of uneven drying effect, water residue affecting drug stability and reducing drug storage life of existing liquid drug drying device.

[0005] The utility model is realized as follows: a kind of pharmaceutical drying device, including device body, first drying bin and second drying bin are arranged in the device body, the first drying bin is located above the second drying bin, and the first drying bin and the second drying bin are separated by separation mechanism;A feed inlet is arranged on the upper part of the device body, the feed inlet is communicated with the first drying bin, a stirring mechanism and a hot air fan are arranged in the first drying bin;A plurality of drying frames are arranged on the lower part of the side wall of the device body by pulling, the plurality of drying frames are arranged in the second drying bin in up-down arrangement, a dryer is arranged above each drying frame, and the dryer is arranged on the inner wall of the second drying bin.

[0006] As a further improvement of the utility model, the stirring mechanism includes a motor, a transmission rod and a stirring assembly, the motor is arranged on the top of the device body, and the rotating shaft of the motor is connected with the stirring assembly through the transmission rod.

[0007] As a further improvement of the utility model, the stirring assembly includes a stirring shaft, a plurality of downward vertical rods are arranged on the upper horizontal rod, and a plurality of upward vertical rods are arranged on the lower horizontal rod.

[0008] As a further improvement of the utility model, the separating mechanism comprises a separating plate, a plug-in interface is opened on the side wall of the device body, the separating plate is inserted into the device body from the plug-in interface, a scraper is arranged on the upper part of the plug-in interface, and the scraper is in close contact with the upper surface of the separating plate.

[0009] As a further improvement of the utility model, a plug-in groove with the same height as the plug-in interface is arranged on the inner wall of the device body, a sealing element is arranged on the separating plate, and the sealing element is in sliding sealing connection with the plug-in groove.

[0010] As a further improvement of the utility model, a containing groove is arranged on the drying frame, and a water absorption layer is detachably arranged in the containing groove.

[0011] As a further improvement of the utility model, a scraping mechanism is arranged above each drying frame, the scraping mechanism comprises a scraping frame, and bristles are arranged on the bottom of the scraping frame.

[0012] As a further improvement of the utility model, a sealing plug is arranged on the feeding port.

[0013] As a further improvement of the utility model, a plurality of groups of temperature sensors and control switches are arranged on the side wall of the device body, each drying frame corresponds to a group of temperature sensors and control switches, the temperature sensors are used for monitoring the temperature of the space above the drying frame, and the control switches are electrically connected with the dryer and are used for controlling the dryer.

[0014] As a further improvement of the utility model, a moisture discharge port is formed in the side wall of the device body, and a dustproof net is arranged outside the moisture discharge port.

[0015] The utility model dries the medicine in liquid state through the first drying bin, and preliminarily dries it to solid state through stirring and drying of the hot air machine, and the stirring can make the medicine roll constantly when drying, increase the contact area with hot air, compared with the uneven drying of mist droplets that can appear in spray drying, can make the medicine heat more evenly, and the drying effect is more stable, also avoid the problem of local drying excess or deficiency that can appear due to long drying time in freeze drying, improve the quality stability of medicine. After opening the separating plate, the solid medicine containing more water falls into the drying frame of the second drying bin, and is dried again by the dryer in the drying frame, and the residual water in the medicine can be completely removed through twice drying, ensure the drying effect of medicine, and reduce the influence of water residue on the stability and storage life of medicine.

[0016] Meanwhile, since the second drying chamber contains multiple drying frames, the drugs that have been initially dried in the first drying chamber can be further dried through multiple drying frames, which can improve drying efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the device body after the front side has been removed.

[0019] Figure 3 This is a structural diagram of the stirring mechanism of this utility model.

[0020] Figure 4 This is a structural diagram of the separation mechanism of this utility model.

[0021] Figure 5 This is a structural diagram of the drying frame of this utility model.

[0022] Figure 6 This is a structural diagram of the scraping mechanism of this utility model.

[0023] In the diagram: 1. Device body; 2. First drying chamber; 3. Second drying chamber; 4. Separating mechanism; 5. Stirring mechanism; 6. Drying frame; 7. Scraping mechanism; 8. Feed inlet; 9. Hot air blower; 10. Dryer; 11. Switch; 12. Sealing plug; 4-1. Insertion interface; 4-2. Separating plate; 4-3. Scraper; 4-4. Slot; 5-1. Motor; 5-2. Cover; 5-3. Transmission rod; 5-4. Stirring assembly; 5-4-1. Stirring shaft; 5-4-2. Upper horizontal bar; 5-4-3. Lower horizontal bar; 5-4-4. Vertical bar; 6-1. Receiving tank; 6-2. Water absorption layer; 7-1. Scraping frame; 7-2. Brush. Detailed Implementation

[0024] The specific embodiments of this utility model will now be described with reference to the accompanying drawings.

[0025] like Figure 1 , Figure 2 As shown, the pharmaceutical drying apparatus of this utility model includes a device body 1, which is a shell structure. Inside the device body 1 are a first drying chamber 2 and a second drying chamber 3, which are separated vertically by a horizontally arranged partition mechanism 4. The first drying chamber 2 is located above the second drying chamber 3. A feed inlet 8 is provided at the upper part of the device body 1, communicating with the upper part of the first drying chamber 2. Liquid medicine enters the first drying chamber 2 through the feed inlet 8.

[0026] The first drying chamber 2 is used for the first drying of liquid medicines. The first drying chamber 2 is equipped with a stirring mechanism 5 and a hot air blower 9. The stirring mechanism 5 continuously stirs the medicine, which can turn the medicine at the bottom to the surface. At the same time, the hot air blower 9 heats and dries the medicine. By stirring and drying, the liquid medicine is quickly dried into a solid medicine, and uneven drying of the medicine can be avoided.

[0027] The medicine, after preliminary drying in the first drying chamber 2, still has a relatively high moisture content. The second drying chamber 3 is used for further drying of the solid medicine. Drying is carried out for a longer time at a lower temperature using a dryer 10 to improve the drying effect. The second drying chamber 3 contains multiple drying frames 6, arranged vertically within the chamber. A dryer 10 is positioned above each drying frame 6, located on the inner wall of the second drying chamber 3. The medicine, after preliminary drying in the first drying chamber 2, enters the uppermost drying frame 6 in the second drying chamber 3 for further drying. While the first drying chamber 2 is drying subsequent liquid medicines, the medicine in the drying frames 6 can continue to dry in the second drying chamber 3. After the first drying chamber 2 completes the preliminary drying of the liquid medicine, the uppermost drying frame 6 in the second drying chamber 3 is swapped with the empty drying frame 6 below it, and the pre-dried solid medicine is sent to the uppermost empty drying frame 6 for further drying. Solid drugs located within the drying frame 6 can be dried for a longer period of time in the second drying chamber 3, thereby ensuring that the drugs are fully dried. Furthermore, the arrangement of multiple drying frames 6 can improve the overall efficiency of drug drying and save drug drying time.

[0028] The drying frame 6 is connected to the device body 1 by a pull-out method. All drying frames 6 are the same size and shape, and the drying frames 6 can be easily pulled out, removed, and plugged in for installation.

[0029] A sealing plug 12 is provided on the feed inlet 8 to seal the feed inlet 8.

[0030] like Figure 3 As shown, the stirring mechanism 5 includes a motor 5-1, a transmission rod 5-3, and a stirring assembly 5-4. The motor 5-1 is located on the top of the device body 1. A cover 5-2 is placed over the motor 5-1 to seal it. The rotating shaft of the motor 5-1 passes downward through the cover 5-2. A sealing element is provided on the cover 5-2 to seal the part of the motor 5-1 that passes through the rotating shaft, preventing lubricating oil and other substances from the motor 5-1 from entering the first drying chamber 2 and causing contamination. The rotating shaft of the motor 5-1 is connected to the stirring assembly 5-4 through the downwardly extending transmission rod 5-3.

[0031] The stirring assembly 5-4 includes a stirring shaft 5-4-1, on which are an upper horizontal rod 5-4-2 and a lower horizontal rod 5-4-3. Several downward-pointing vertical rods 5-4-4 are mounted on the upper horizontal rod 5-4-2, and several upward-pointing vertical rods 5-4-4 are mounted on the lower horizontal rod 5-4-3. The arrangement of the horizontal and vertical rods 5-4-4 ensures thorough stirring of the medicine, allowing the medicine at the bottom to be turned to the surface for drying, thus improving the drying effect.

[0032] Hot air blowers 9 are located on both sides of the inner wall of the first drying chamber 2. The hot air blowers 9 can quickly heat the air and blow it out to form a high-temperature airflow. The high-temperature airflow quickly heats the medicine, causing the moisture to evaporate and creating positive pressure inside the first drying chamber 2. A dehumidification port is provided at the top or top of the first drying chamber 2 to discharge moisture. A dustproof net is provided on the outside of the dehumidification port (the dehumidification port and the dustproof net are not shown in the figure). The dustproof net prevents external pollutants from entering the first drying chamber 2.

[0033] like Figure 4 As shown, the separating mechanism 4 includes a separating plate 4-2. An insertion interface 4-1 is opened on one side wall of the device body 1. The separating plate 4-2 is inserted into the device body 1 through the insertion interface 4-1. A scraper 4-3 is provided on the upper part of the insertion interface 4-1. The scraper 4-3 is in close contact with the upper surface of the separating plate 4-2.

[0034] A slot 4-4, with the same height as the insertion interface 4-1, is provided on the inner wall of the device body 1. A sealing element is provided on the partition plate 4-2, and the sealing element is slidably and sealingly connected to the slot 4-4. After the partition plate 4-2 is inserted into the slot 4-4, the sealing element on the partition plate 4-2 makes sealing contact with the slot 4-4. A retaining edge is provided at the upper front end of the partition plate 4-2, and a sealing element is provided on the inner side of the retaining edge. After the partition plate 4-2 is inserted into the insertion interface 4-1, the sealing element on the retaining edge makes sealing contact with the upper edge of the insertion interface 4-1. The sealing element on the partition plate 4-2 and the sealing element on the retaining edge can be connected as a whole. The sealing element can prevent liquid medicine in the first drying chamber 2 from leaking from the insertion interface 4-1.

[0035] A handle is provided on the front surface of the partition plate 4-2, and a heat insulation layer is provided on the handle. The operator can use the handle to pull the partition plate 4-2 out from the insertion port 4-1, thereby discharging the pre-dried solid medicine in the first drying chamber 2 into the second drying chamber 3 below. When the partition plate is pulled out, the scraper 4-3 scrapes off the medicine on the upper surface of the partition plate 4-2 to prevent the medicine from leaking from the insertion port 4-1.

[0036] The scraper 4-3 is fixed at both ends to the side walls on both sides of the first drying chamber 2 by connectors, and the lower part of the scraper 4-3 is made of flexible material.

[0037] likeFigure 5 As shown, a receiving groove 6-1 is provided on the drying frame 6, and a water-absorbing layer 6-2 is detachably arranged in the receiving groove 6-1.

[0038] The drying frame 6 is of a rectangular structure as a whole. When the drying frame 6 is installed on the device body 1, the drying frame 6 can completely horizontally block the second drying chamber 3, and relatively independent drying spaces are respectively formed between the uppermost drying frame 6 and the separating mechanism 4 and between two adjacent drying frames 6.

[0039] The water-absorbing layer 6-2 is made of a water-absorbing material and is installed in the receiving groove 6-1. The water-absorbing layer 6-2 can adsorb the moisture in the medicine.

[0040] Meanwhile, in the above-mentioned relatively independent drying spaces, a dryer 10 and a temperature sensor are respectively arranged, and a channel for discharging moisture is opened on the side wall. The dryer 10 dries the corresponding drying frame 6, the internal temperature is detected by the temperature sensor, and a corresponding control switch 11 is arranged on the outer wall of the device body 1. The control switch 11 is electrically connected to the dryer 10 and is used to control the dryer 10. The internal temperature is controlled through the control switch 11, and the channel for discharging moisture is generally opened on the back of the device body 1.

[0041] Since the solid medicine in the first drying chamber 2 may be unevenly distributed when it falls into the drying frame 6 through the separating mechanism 4, a leveling mechanism 7 is arranged in a drawable manner above the uppermost drying frame 6 or above each drying frame 6.

[0042] Such as Figure 6 As shown, the leveling mechanism 7 includes a leveling frame 7-1. The leveling frame 7-1 is a "day"-shaped frame. Brush hairs 7-2 are arranged at the bottoms of the connecting rods on the inner side and in the middle. A handle is arranged on the outer side of the leveling frame 7-1. By reciprocally drawing the leveling frame 7-1, the brush hairs 7-2 move on the drying frame 6 to drive the medicine to move, so that the medicine is evenly distributed, avoiding the accumulation of the medicine and facilitating the drying of the medicine.

[0043] In operation, the operator injects a certain amount of liquid medicine into the first drying chamber 2 through the feed inlet 8, seals the feed inlet 8 with the sealing plug 12, and starts the stirring mechanism 5 and the hot air blower 9. Through stirring and heating, the liquid medicine is gradually dried into a solid. The solid medicine accumulates at the bottom of the first drying chamber 2. At this point, the solid medicine obtained after preliminary drying still contains a lot of moisture. The separating mechanism 4 is opened, and the separating plate 4-2 is pulled out. The solid medicine falls from the first drying chamber 2 into the drying frame 6 in the second drying chamber 3. The separating plate 4-2 is reset to separate the first drying chamber 2 and the second drying chamber 3. The solid medicine falling into the drying frame 6 is evenly distributed by the scraping frame 7-1. The feed inlet 8 is opened again to inject a certain amount of liquid medicine into the first drying chamber 2, while the liquid medicine in the second drying chamber... The solid drug in the drying frame 6 inside the first drying chamber 3 continues to dry under the action of the water-absorbing layer 6-2 and the dryer 10. The temperature of the space above the drying frame 6 is controlled by the control switch 11 to ensure that it dries at a suitable temperature. When the liquid drug in the first drying chamber 2 becomes solid again, the uppermost drying frame 6 in the second drying chamber 3 is swapped with the empty drying frame 6 below. The separation mechanism 4 is opened to output the solid drug in the first drying chamber 2 to the uppermost drying frame 6. The separation mechanism 4 is closed, and the above operation is repeated. For the drying frame 6 that has been moved to the lower position, the solid drug inside it is dried for a predetermined time, and the drying frame 6 is taken out and the drug inside it is removed. The drying frame 6 is then put back in its original position as an empty drying frame 6 for later use.

Claims

1. A pharmaceutical drying apparatus, characterized in that, The device includes a main body, which has a first drying chamber and a second drying chamber inside. The first drying chamber is located above the second drying chamber, and the first drying chamber and the second drying chamber are separated by a partition mechanism. A feed inlet is provided on the upper part of the device body, and the feed inlet is connected to the first drying chamber. A stirring mechanism and a hot air blower are provided in the first drying chamber. Several drying frames are pulled out and installed on the lower side wall of the device body. The several drying frames are arranged vertically in the second drying chamber. A dryer is provided above each drying frame and is located on the inner wall of the second drying chamber.

2. The pharmaceutical drying apparatus according to claim 1, characterized in that, The stirring mechanism includes a motor, a transmission rod, and a stirring assembly. The motor is located on the top of the device body, and the motor shaft is connected to the stirring assembly via the transmission rod.

3. The pharmaceutical drying apparatus according to claim 2, characterized in that, The stirring assembly includes a stirring shaft, on which an upper horizontal bar and a lower horizontal bar are provided. Several downward vertical bars are provided on the upper horizontal bar, and several upward vertical bars are provided on the lower horizontal bar.

4. The pharmaceutical drying apparatus according to claim 1, characterized in that, The separating mechanism includes a separating plate, and an insertion interface is provided on one side wall of the device body. The separating plate is inserted into the device body through the insertion interface. A scraper is provided above the insertion interface, and the scraper is in close contact with the upper surface of the separating plate.

5. The pharmaceutical drying apparatus according to claim 4, characterized in that, A slot with the same height as the insertion interface is provided on the inner wall of the device body, and a sealing element is provided on the partition plate, and the sealing element is slidably and sealingly connected to the slot.

6. The pharmaceutical drying apparatus according to claim 1, characterized in that, The drying frame is provided with a receiving groove, and a water-absorbing layer is detachably installed in the receiving groove.

7. The pharmaceutical drying apparatus according to claim 1, characterized in that, A leveling mechanism is provided above each of the drying frames. The leveling mechanism includes a leveling frame with bristles at the bottom.

8. The pharmaceutical drying apparatus according to claim 1, characterized in that, A sealing plug is provided on the feed inlet.

9. The pharmaceutical drying apparatus according to claim 1, characterized in that, Several sets of temperature sensors and control switches are provided on the side wall of the device body. Each drying frame corresponds to a set of temperature sensors and control switches. The temperature sensors are used to monitor the temperature of the space above the drying frame, and the control switches are electrically connected to the dryer to control the dryer.

10. The pharmaceutical drying apparatus according to claim 1, characterized in that, A vent is provided on the side wall of the device body, and a dustproof net is provided on the outside of the vent.

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