Mongolian medicine drying room and mongolian medicine drying method

Abstract

The application provides a Mongolian medicine drying room and a Mongolian medicine drying method. The Mongolian medicine drying room is provided with a structure of side air supply and upper air return through a hot air supply mode, and is used in cooperation with a circulating fan, an electric heater and an air extractor, so that a drying room with small floor area, easy arrangement, energy saving, timely adjustment of drying conditions and high hot air circulation efficiency is provided. The Mongolian medicine drying method has the characteristics of simple steps, easy operation and good drying effect.

Description

Technical Field

[0001] This application relates to drug drying technology, and more particularly to a Mongolian medicine drying room and a Mongolian medicine drying method. Background Technology

[0002] Mongolian medicine water pills are a common method in Mongolian medicine, where medicinal powder is shaped into pills using water or medicinal juice, and then naturally or by baking before clinical use. The selection of drying temperature, humidity, and drying method during the water pill production process is crucial to ensuring the potency, properties, efficacy, and specific effects of the Mongolian medicine preparation. Appearance is the most direct indicator of the quality of Mongolian medicine water pills. Excessive heat, excessively high or low temperatures, or uneven heating during the drying process will all affect the appearance of the water pills. Excessively high temperatures can cause some pills to scorch, alter their medicinal properties, and darken in color. Some water pills coated with powder later may crack during high-temperature drying, affecting their appearance. Uneven heating results in inconsistent coloring of the pills, leading to mottled appearances, affecting quality indicators and reducing clinical efficacy. If the drying temperature is too low or the drying time is too long, bacteria can easily grow, altering the appearance of the water pills. Some low-viscosity pills, if not dried promptly, will detach and crumble, becoming loose and brittle, affecting the quality of the water pills.

[0003] Existing methods for drying Mongolian medicine pills mostly employ traditional drying chambers. The principle is roughly as follows: hot air passes through a heat exchanger to exchange heat with the ambient air entering the exchanger. The heated ambient air then enters the drying chamber from the bottom upwards, exchanging heat and moisture with the Mongolian medicine pills. The heated air, after exchanging heat and moisture with the pills, is directly exhausted, ultimately achieving the drying effect. However, this method involves a long heat conduction path—hot air from the heat source, heat exchanger, heated ambient air, and then the pills to be dried. This excessively long temperature conduction path often leads to uneven drying, and the temperature is difficult to control during the drying process, resulting in substandard pill quality. Furthermore, the heat generated during drying is difficult to reuse, leading to heat waste. Therefore, there is an urgent need for a Mongolian medicine drying chamber that can control drying conditions in a timely manner, uniformly dry Mongolian medicine pills, reduce heat waste during the drying process, and improve pill quality. Summary of the Invention

[0004] This application provides a Mongolian medicine drying room and a drying method that can control drying conditions in a timely manner, dry Mongolian medicine pills evenly, and reduce heat waste during the drying process, thereby overcoming the shortcomings of the existing Mongolian medicine pill drying equipment and methods.

[0005] In the first aspect, this application provides a Mongolian medicine drying room, including a drying room body, the interior of which is divided into a heating zone and a drying zone by a vertically arranged partition;

[0006] A shelf is horizontally installed at the top of the partition, and the space between the shelf and the inner top of the drying chamber body forms a return air channel; the heating zone and the drying zone are connected through the return air channel;

[0007] The heating zone is equipped with an electric hot air blower, a circulating fan, and a circulating air hood;

[0008] An air vent is provided at the center of the lower part of the partition, and the output ends of the electric heating fan and the circulating fan are connected to the air vent.

[0009] The heating zone of the drying chamber body has a first air inlet and a second air inlet on the side away from the partition. The first air inlet is connected to the input end of the circulating fan through a first pipe; the input end of the electric heating fan is connected to the second air inlet.

[0010] The circulating air hood is connected to the first duct through the second duct, and the inlet of the circulating air hood covers the cross-section of the return air duct.

[0011] The drying area is equipped with multiple shelves;

[0012] An exhaust vent is provided on the side of the drying area of ​​the drying room away from the partition, and the exhaust vent is connected to the exhaust fan through an exhaust hood.

[0013] A heat exchange device is installed in the return air duct, and the heat exchange device is connected to the circulation pipe embedded in the wall of the drying room; the windward side of the heat exchange device covers the cross-section of the return air duct.

[0014] Temperature and humidity sensors are installed on multiple shelves.

[0015] The Mongolian medicine drying room described in this application has the following advantages:

[0016] (1) It occupies a small area, is easy to set up, and the equipment is easy to maintain and disassemble.

[0017] (2) All equipment works closely together. By opening and closing the first air inlet and the circulating fan, it is possible to switch between different working modes of internal circulation and external circulation.

[0018] (3) Save energy. By setting up circulation pipes in the wall and connecting the circulation pipes to the heat exchange device, the heat in the return air can be used to keep the drying room warm, realize the secondary use of hot air energy, and reduce the heat loss of hot air heating the drying room.

[0019] (4) The drying conditions can be adjusted in a timely manner. By setting a temperature-humidity sensor on the shelf, the temperature and humidity during the drying process can be monitored in real time, which makes it convenient for operators to adjust the drying conditions in a timely manner.

[0020] (5) By adopting the method of side air supply and setting the return air channel at the top, the uniformity of airflow speed and temperature in the drying area can be guaranteed. Setting the return air channel can guide the return air, reduce the attenuation of the return air rate, and improve the circulation efficiency.

[0021] The Mongolian medicine drying room of this application provides a drying room with a small footprint, easy layout, energy saving, timely adjustment of drying conditions, and high hot air circulation efficiency by setting the hot air supply method to side supply and top return, and using a circulating fan, electric hot air fan and exhaust fan together.

[0022] Optionally, the heat exchange device includes a shell, a grid frame for receiving heat exchange pipes is provided at the bottom of the shell, and a circulating water pump is also provided inside the shell;

[0023] The output end of the heat exchange pipe is connected to the input end of the circulating water pump, the output end of the circulating pipe is connected to the input end of the heat exchange pipe, and the output end of the circulating water pump is connected to the input end of the circulating pipe.

[0024] The leeward side of the heat exchanger is a louvered surface;

[0025] A drain pipe is provided at the bottom of the side of the shell, which passes through the side of the drying chamber body and extends out of the drying chamber body.

[0026] Optionally, a spray head is provided on the top wall inside the housing, and the spray head is connected to the water supply pipe through a water distribution branch pipe.

[0027] Optionally, a filter screen is installed inside the housing near the louvers.

[0028] Optionally, the shelf is equipped with multiple layers of receiving trays, with the windward and leeward sides of the receiving trays being hollowed out, and the hollowed-out holes being parallel to the direction of hot air travel; the bottom surface of the receiving tray is also hollowed out, and the direction of the hollowed-out holes on the bottom surface is perpendicular to the direction of hot air travel.

[0029] The height of the leeward side of the receiving plate is 1.5 to 2.2 times that of the windward side, and the leeward side forms an angle of 75 to 90 degrees with the horizontal plane.

[0030] Optionally, multiple baffles perpendicular to the direction of hot air are arranged in parallel between the windward and leeward sides of the receiving plate, and the structure of the baffles is completely identical to that of the leeward side.

[0031] Optionally, a cyclone separator is connected to the output end of the exhaust fan.

[0032] Optionally, both the first and second air inlets are equipped with air filters;

[0033] A dehumidifier is connected to the outside of the second air inlet.

[0034] Optionally, the walls of the drying chamber body include, from the center outwards, an insulation layer, a waterproof layer, a buffer layer, and a rigid support layer; the circulation pipe is buried between the waterproof layer and the buffer layer near the interior of the drying chamber body.

[0035] Secondly, this application provides a method for drying Mongolian medicine, applied to the Mongolian medicine drying room mentioned in the first aspect, comprising the following steps:

[0036] 1) Place the Mongolian medicine pills to be dried in the receiving tray and place the receiving tray on the shelf. Open the first air inlet, the second air inlet, the electric hot air blower and the louvers, and adjust the hot air speed to 3-3.5 m / s.

[0037] 2) Raise the temperature in the drying room from room temperature to the optimal drying temperature at a uniform rate and maintain it for 10-11 hours. The optimal drying temperature is 30-60℃, and the heating rate is 1-2℃ / h.

[0038] 3) Close the first air inlet, turn on the circulating fan, exhaust port and exhaust fan, adjust the circulating air speed to 2-2.5m / s, the hot air speed to 3-3.5m / s, and the exhaust speed of exhaust fan 5 to 2-2.5m / s, keep at the optimal drying temperature for 6-8 hours and then cool to room temperature to obtain the dried Mongolian medicine pills.

[0039] The method for drying Mongolian medicine water pills provided in this application has the following advantages:

[0040] (1) The operation steps are simple and easy to operate, the drying time is short and the dried fruit is good, so energy can be saved to a certain extent.

[0041] (2) The heating process is slow, which can effectively prevent the heating rate from being too fast, causing the surface of the water pills to dry into a hard shell, resulting in cracking of the surface of the water pills and the adverse consequences of the inside of the water pills not being easy to dry.

[0042] (3) The drying temperature is low, which is suitable for drying pills containing volatile components. Drying pills at 30-60℃ can effectively prevent the drying temperature from being too high, which could lead to the destruction of the effective components of the pills and the occurrence of scorched pills. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a three-dimensional structural diagram of a Mongolian medicine drying room provided in an embodiment of this application;

[0045] Figure 2 This is a schematic diagram of the internal structure of a Mongolian medicine drying room provided in an embodiment of this application;

[0046] Figure 3 This is a top view of the interior structure of a Mongolian medicine drying room provided in an embodiment of this application;

[0047] Figure 4 This is a schematic diagram of the internal main structure of a heat exchange device provided in an embodiment of this application;

[0048] Figure 5 This is a rear view structural schematic diagram of a heat exchange device provided in an embodiment of this application;

[0049] Figure 6 A schematic diagram of the internal right-side structure of a heat exchange device provided in an embodiment of this application;

[0050] Figure 7 This is a schematic diagram of the structure of a receiving plate provided in one embodiment of this application;

[0051] Figure 8 A schematic diagram of the right-side structure of a receiving plate provided in an embodiment of this application;

[0052] Figure 9 This is a schematic diagram of the internal structure of a Mongolian medicine drying room provided in another embodiment of this application;

[0053] Figure 10 This is a top view of the interior structure of a Mongolian medicine drying room provided in another embodiment of this application;

[0054] Figure 11 This is a schematic diagram of the structure of the wall of a Mongolian medicine drying room provided in one embodiment of this application.

[0055] Explanation of reference numerals in the attached figures:

[0056] 1. Drying chamber body; 2. Electric hot air blower; 3. Circulating fan; 4. Shelf; 5. Exhaust fan; 6. Heat exchanger; 7. Cyclone separator; 8. Dehumidifier; 11. Partition; 12. Shelf; 13. Circulating hood; 14. Exhaust hood; 15. Circulating pipe; 16. Temperature-humidity sensor; 41. Receiving tray; 42. Baffle plate; 61. Shell; 62. Grid frame; 63. Heat exchange pipe; 64. Circulating water pump; 6 5. Louver; 66. Sprinkler head; 67. Water distribution branch pipe; 68. Filter screen; 100. Air outlet; 101. First air inlet; 102. Second air inlet; 103. Exhaust outlet; 601. Drain pipe; 602. Water supply pipe; 666. Sprinkler head; 1001. First pipe; 1002. Second pipe; 1101. Insulation layer; 1102. Waterproof layer; 1103. Buffer layer; 1104. Rigid support layer. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0058] Firstly, such as Figures 1-3 As shown, this application provides a Mongolian medicine drying room, including a drying room body 1, the interior of which is divided into a heating zone and a drying zone by a vertically arranged partition 11;

[0059] A shelf 12 is horizontally arranged on the top of the partition 11, and the space between the shelf 12 and the inner top of the drying chamber body 1 forms a return air channel; the heating zone and the drying zone are connected through the return air channel;

[0060] The heating zone is equipped with an electric hot air blower 2, a circulating fan 3, and a circulating air hood 13;

[0061] An air vent 100 is provided at the lower center of the partition 11, and the output ends of the electric heating fan 2 and the circulating fan 3 are connected to the air vent 100.

[0062] The heating zone of the drying chamber body 1 is provided with a first air inlet 101 and a second air inlet 102 on the side away from the partition 11. The first air inlet 101 is connected to the input end of the circulating fan 3 through the first pipe 1001; the input end of the electric hot air blower 2 is connected to the second air inlet 102.

[0063] The circulating air hood 13 is connected to the first pipe 1001 through the second pipe 1002, and the inlet of the circulating air hood 13 covers the cross-section of the return air channel.

[0064] The drying area is equipped with multiple shelves 4;

[0065] An exhaust port 103 is provided on the side away from the partition 11 in the drying area of ​​the drying room body 1. The exhaust port 103 is connected to the exhaust fan 5 through the exhaust hood 14.

[0066] A heat exchange device 6 is installed in the return air duct, and the heat exchange device 6 is connected to the circulation pipe 15 embedded in the wall of the drying room body 1; the windward side of the heat exchange device 6 covers the cross-section of the return air duct.

[0067] Temperature and humidity sensors 16 are installed on multiple shelves 4.

[0068] In this application, the electric hot air blower 2 is used to provide hot air at a preset temperature to the drying zone, the circulating fan 3 is used to circulate the hot air in the drying room, and the exhaust fan 5 is used to exhaust the air in the drying room.

[0069] The heat exchange device 6 utilizes the heat in the hot air for secondary purposes through the heat exchange medium therein. The utilization method is as follows: the heat exchange medium (water in this application) that has absorbed the heat in the hot air is used to keep the drying room warm through the circulation pipe 15.

[0070] The inlet of the circulating hood 13 covers the cross-section of the return air passage to ensure that the return air can fully enter the first duct 1001 for circulation or discharge.

[0071] The air-facing side of heat exchanger 6 covers the cross-section of the return air duct in order to make full use of the heat in the hot return air.

[0072] The temperature and humidity sensor 16 is used to detect the temperature and humidity in the drying area in real time, so that the staff can control the drying process in real time.

[0073] The air vent 100 is located at the lower center of the partition 11, and its opening is funnel-shaped to obtain a better coverage area, so that the hot air dries the pills more evenly. In one possible way, an axial flow fan with its axis perpendicular to the horizontal plane can be installed at the upper part of the output end of the air vent 100 to increase the upward speed of the hot air.

[0074] In this application, the door of the drying room can be set in a suitable location as needed, such as on the side wall of the drying area away from the exhaust port 103.

[0075] A Mongolian medicine drying room, the usage process of which is as follows:

[0076] Dehumidification process: During use, place the container containing the Mongolian medicine pills on the shelf 4 in the drying area, turn off the circulating fan 3 and the exhaust port 103, and open the first air inlet 101, the second air inlet 102, and the electric hot air blower 2. At this time, air enters the electric hot air blower 2 through the second air inlet 102. The electric hot air blower heats the air to a preset temperature to form hot air (the preset temperature is determined by the properties of the Mongolian medicine pills to be dried, and its range is 30-60℃, with a wind speed of 3-3.5m / s). The hot air enters the drying area from the air distribution port 100 (because the outlet shape of the air distribution port 100 is outward-expanding, the hot air will move forward, left, right, and up simultaneously after entering the drying area), drying the Mongolian medicine pills.

[0077] The hot air passing through the rack 4 in the drying area (at which point the temperature has decreased and the humidity has increased) rises into the return air duct. When it passes through the heat exchange device 6, it exchanges heat with the heat exchange medium in the heat exchange device 6. The water vapor in the hot air is condensed, and the heat is transferred to the heat exchange medium. The heat exchange device 6 then pumps the heat exchange medium after heat exchange into the circulation pipe 15 for circulation in order to keep the drying room warm.

[0078] The hot air passing through the heat exchanger 6 enters the circulating air hood 13 and then passes through the second pipe 1002 and the first pipe 1001 before being discharged outward through the first air inlet 101. During the external circulation process, the hot air discharged from the first air inlet 101 can be guided to the corresponding processing device or to a position away from the second air inlet 102.

[0079] Internal circulation process: When the temperature-humidity sensor 16 detects that the humidity in the drying zone remains constant within 0.5 to 1 hour (e.g., humidity is 12% ± 0.5%), the first air inlet 101 is closed, and the circulating fan 3, exhaust port 103, and exhaust fan 5 are turned on. The operating speeds of the circulating fan 3, electric hot air fan 2, and exhaust fan 5 are adjusted (e.g., the circulating air speed is adjusted to 2 to 2.5 m / s, the hot air speed to 3 to 3.5 m / s, and the exhaust speed of exhaust fan 5 to 2 to 2.5 m / s). At this time, after the hot air dries the Mongolian medicine pills, part of it is discharged to the corresponding processing equipment through exhaust fan 5, and the other part is internally circulated through the return air channel, heat exchange device 6, circulating air hood 13, second pipe 1002, and circulating fan 3, and then distributed through the air distribution system.

[0080] The solution is discharged into the drying zone through the inlet 100 until the humidity in the drying zone remains constant within 0.5 to 1 hour (e.g., humidity less than 9.0%) as detected by the temperature-humidity sensor 16. The drying process ends when the humidity is cooled to room temperature. The dried Mongolian medicine pills are then obtained. To achieve better drying results, the operator can turn the pills over or change their positions during the drying process.

[0081] Drying Room Cleaning Process: After the drying process is completed, turn off the electric hot air blower 2 and the heat exchange device 6, open the first air inlet 101, and keep the circulating fan 3 and the exhaust fan 5 running. The circulating fan 3 blows outside air into the drying area, agitating the dust and volatile gases emitted during the drying process of the pills, which are then extracted by the exhaust fan 5, thus cleaning the drying area. During operation, for example, the circulating air speed and the exhaust air speed should be adjusted to be equal to and greater than 3 m / s, and maintained for 0.5 to 1 hour. After the cleaning process is completed, the above-mentioned equipment and components that were in the open state can be turned off.

[0082] like Figures 4-6 As shown, optionally, the heat exchange device 6 includes a housing 61, a grid frame 62 for receiving the heat exchange pipe 63 is provided at the lower part of the housing 61, and a circulating water pump 64 is also provided inside the housing 61.

[0083] The output end of heat exchange pipe 63 is connected to the input end of circulating water pump 64, the output end of circulating pipe 15 is connected to the input end of heat exchange pipe 63, and the output end of circulating water pump 64 is connected to the input end of circulating pipe 15.

[0084] The leeward side of the heat exchanger 6 is a louver 65;

[0085] A drain pipe 601 is provided at the bottom of the side of the shell 61. The drain pipe 601 passes through the side of the drying chamber body 1 and extends out of the drying chamber body 1.

[0086] In this application, the heat exchange pipe 63 is coiled and folded within the heat exchange device 6 to increase the heat exchange area, and can also adhere to and intercept some drug dust. The heat exchange medium in the heat exchange pipe 63 and the circulation pipe 15 is water. The bottom cross-section of the shell 61 is V-shaped so that the water vapor condensed by the heat exchange pipe 63 can accumulate and then be discharged through the drain pipe 601. A protective cover can be installed on the circulating water pump 64 to prevent water vapor and dust from corroding the circulating water pump 64. The heat exchange pipe 63 can not only absorb the sensible heat in the hot air, but also condense the water vapor carried in the hot air and utilize its latent heat.

[0087] like Figures 4-6 As shown, optionally, a spray head 66 is provided on the inner top wall of the housing 61, and the spray head 66 is connected to the water supply pipe 602 through a water distribution branch pipe 67.

[0088] In this application, the purpose of providing spray heads 66 is to clean the heat exchange pipes 63. During operation, dust and other contaminants accumulate on the heat exchange pipes 63, affecting both the internal microenvironment of the casing and heat exchange. Spray heads 66 allow for the washing of the heat exchange pipes 63 using water or cleaning agents. In use, the water supply pipe 602 is connected to a corresponding cleaning agent supply device, and the heat exchange pipes 63 are sprayed and washed under a certain hydraulic pressure. The wastewater after washing is discharged through the drain pipe 601 to a corresponding receiving device for centralized treatment. Figure 6 As shown, optionally, a filter screen 68 is provided inside the housing 61 near the louver 65.

[0089] In this application, the filter screen 68 can filter the dust carried in the hot air passing through the heat exchange pipe 63, so as to reduce the adverse effects of dust on downstream equipment.

[0090] like Figure 7 and Figure 8 As shown, optionally, the shelf 4 is provided with a multi-layer receiving tray 41. The windward side and the leeward side of the receiving tray 41 are hollowed out, and the hollowed-out through holes are parallel to the direction of hot air travel. The bottom surface of the receiving tray 41 is also hollowed out, and the direction of the hollowed-out through holes on the bottom surface is perpendicular to the direction of hot air travel.

[0091] The height of the leeward side of the receiving plate 41 is 1.5 to 2.2 times that of the windward side, and the leeward side forms an angle of 75 to 90 degrees with the horizontal plane.

[0092] In this application, the perforated through holes are rectangular with parallel shapes, and their width is smaller than the particle size of the dried Mongolian medicine pills. This shape allows a gap to remain between the pills and the through holes during drying, facilitating the passage of rising hot air.

[0093] The windward and leeward sides of the receiving plate 41 are both hollowed out, and the hollowed-out holes are parallel to the direction of hot air travel. This design can reduce the resistance to the hot air flow.

[0094] The perforated bottom surface is perpendicular to the direction of the hot air. This design facilitates the arrangement of Mongolian medicine pills within the receiving tray 41 and also makes it easier to count the pills. In one feasible configuration, a side parallel to the direction of the hot air is rotatably connected to the bottom surface of the receiving tray 41, for example, by a hinge. The two ends of this side are movably connected to the windward and leeward sides of the receiving tray 41, for example, by a snap-fit ​​connection. This allows the dried pills to be transferred by opening this side after drying and pouring them into the appropriate container.

[0095] In this application, the height of the leeward side of the receiving plate 41 is 1.5 to 2.2 times that of the windward side, and the leeward side forms an angle of 75 to 90° with the horizontal plane. This setting can guide the hot air upward. When the hot air blows, part of it passes through the through hole and continues to move forward, while the other part is blocked and guided upward by the plate between the through holes. This setting can enhance the upward efficiency of the hot air and improve the heat and mass transfer between the hot air and the Mongolian medicine pill.

[0096] like Figure 7 and Figure 8 As shown, optionally, multiple baffles 42 perpendicular to the direction of hot air are arranged in parallel between the windward side and the leeward side inside the receiving plate 41, and the structure of the baffles 42 is completely consistent with that of the leeward side.

[0097] like Figure 9 and Figure 10 As shown, optionally, the output end of the exhaust fan 5 is connected to a cyclone separator 7.

[0098] In this application, since water pellets will generate dust in the middle and later stages of drying, if they are discharged directly, it will have an adverse effect on the surrounding environment. Therefore, a cyclone separator 7 is connected to the output end of the exhaust fan 5 to separate the dust in the dusty air discharged by the exhaust fan 5 from the air, so as to achieve the function of dust removal and purification of the discharged air.

[0099] like Figure 10 As shown, optionally, both the first air inlet 101 and the second air inlet 102 are provided with air filters;

[0100] A dehumidifier 8 is connected to the outside of the second air inlet 102.

[0101] In this application, both the first air inlet 101 and the second air inlet 102 are equipped with air filters, which can trap solid particles and other impurities in the outside air and reduce the adverse effects of these impurities on the Mongolian medicine pills in the drying room.

[0102] In this application, a dehumidifier 8 is connected to the outside of the second air inlet 102. In some areas or seasons with high air humidity, high air humidity will lead to incomplete drying of the water pills, and the electric heating fan 2 will consume extra energy, resulting in energy waste. Therefore, the dehumidifier 8 is set up so that the outside air can be dried (for example, the air humidity of the water pills is required to be less than 9.0%), and then the electric heating fan 2 can be used to heat and dry the Mongolian medicine water pills.

[0103] like Figure 11 As shown, optionally, the wall of the drying chamber body 1 includes, from the center outwards, an insulation layer 1101, a waterproof layer 1102, a buffer layer 1103 and a rigid support layer 1104; the circulation pipe 15 is buried between the waterproof layer 1102 and the buffer layer 1103 near the interior of the drying chamber body 1.

[0104] In this application, the walls of the drying room, from the inside to the outside, are as follows: rigid support layer 1104, buffer layer 1103, circulation pipe 15, waterproof layer 1102, insulation layer 1101, waterproof layer 1102, buffer layer 1103, and rigid support layer 1104. In the walls of the drying room body 1, the function of the insulation layer 1101 is to keep the drying room warm and prevent the temperature from falling out too quickly, thus avoiding energy waste. The insulation layer 1101 can be made of materials such as rock wool board, polystyrene board, extruded polystyrene board, and polystyrene foam board with a thickness of 8-12cm.

[0105] The waterproof layer 1102 is mainly used to waterproof the insulation layer 1101, preventing moisture or water from penetrating the insulation layer 1101 and causing damage to it. The waterproof layer can be made of organic polymer materials such as polytetrafluoroethylene coating with a thickness of 0.5 to 0.8 cm.

[0106] The buffer layer 1103 serves to buffer and protect the internal structure of the wall. The buffer layer 1103 can be made of materials such as polyethylene foam board with a thickness of 1 to 1.2 cm.

[0107] The rigid support layer 1104 is located on the outermost layer of the wall and has the function of supporting and protecting the internal structure of the wall. The rigid support layer 1104 can be made of steel plate with a thickness of 0.08 to 0.12 cm.

[0108] The advantages of burying the circulation pipe 15 between the waterproof layer 1102 and the buffer layer 1103 near the interior of the drying chamber body 1 are as follows:

[0109] (1) The circulation pipe 15 is close to the inside of the drying room, which can better play the role of heat preservation and reduce heat loss. In addition, the circulation pipe 15 is close to the inside of the drying room, which can reduce the adverse effects of external impacts on the circulation pipe 15.

[0110] (2) The circulation pipe 15 is located between the waterproof layer 1102 and the buffer layer 1103. Firstly, the buffer layer 1103 can protect the circulation pipe 15 when the wall is impacted; secondly, if the circulation pipe 15 is broken, the presence of the waterproof layer 1102 can prevent water from entering the insulation layer 1101 and causing damage to it.

[0111] Secondly, this application provides a method for drying Mongolian medicine, applied to the Mongolian medicine drying room mentioned in the first aspect, comprising the following steps:

[0112] 1) Place the Mongolian medicine pills to be dried in the receiving tray 41, and place the receiving tray 41 on the shelf 4. Open the first air inlet 101, the second air inlet 102, the electric hot air blower 2 and the louver 65, and adjust the hot air speed to 3-3.5 m / s.

[0113] In this application, this step is the initial operation of drying, which involves preheating the equipment and drying room, and placing the pills to be dried in a suitable position.

[0114] 2) Raise the temperature in the drying room from room temperature to the optimal drying temperature at a uniform rate and maintain it for 10-11 hours. The optimal drying temperature is 30-60℃, and the heating rate is 1-2℃ / h.

[0115] In this application, this step is a mid-to-early stage of drying, and an external circulation process is carried out. Since the hot air has a high humidity after drying the pills, it is not suitable for circulation. Also, the dust generated in this process is relatively small. Therefore, the hot air can be discharged through the return air channel and then through the first air inlet 101.

[0116] The process involves a slow heating rate of 1–2°C / h to prevent the surface of the pills from hardening and cracking due to excessively rapid heating, as well as slow drying inside the pills. The optimal drying temperature is 30–60°C. This temperature range is selected based on the properties of the medicinal materials in the pills. Because Mongolian medicine often contains volatile substances, the maximum drying temperature should be set below 60°C. This temperature should also be sufficient to dry the corresponding Mongolian medicine pills to a suitable moisture content (less than 9.0%). The drying time is generally 10–11 hours, but can also be determined by humidity data from a temperature-humidity sensor. For example, if the humidity remains constant for 0.5–1 hour (e.g., 9.0%), the next step can proceed.

[0117] 3) Close the first air inlet 101, turn on the circulating fan 3, the exhaust port 103 and the exhaust fan 5, adjust the circulating air speed to 2-2.5 m / s, the hot air speed to 3-3.5 m / s and the exhaust speed of the exhaust fan 5 to 2-2.5 m / s, keep it at the optimal drying temperature for 6-8 hours, and then cool it to room temperature to obtain the dried Mongolian medicine pills.

[0118] In this application, this step is the middle and late stage of drying Mongolian medicine pills. During this process, the pills gradually lose water and are prone to generating dust under the blowing of hot air. Therefore, the first air inlet 101 is closed for internal circulation. During this process, part of the dried air is discharged through the exhaust fan 5 and part is recirculated. The hot air drawn away by the exhaust fan 5 is processed by the cyclone separator 7 before being discharged.

[0119] A Mongolian medicine drying room, the usage process of which is as follows:

[0120] Dehumidification process: During use, place the receiving tray 41 containing the Mongolian medicine pills on the shelf 4 in the drying area, turn off the circulating fan 3 and the exhaust port 103, and turn on the circulating water pump 64, the first air inlet 101, the second air inlet 102, the electric hot air fan 2, the dehumidifier 8, and the louvers 65. At this time, the air dried by the dehumidifier 8 (humidity 8.0% ± 0.5%) enters the electric hot air fan 2 through the second air inlet 102. The electric hot air fan 2 heats the dried air to a preset temperature to form hot air (the preset temperature is determined by the properties of the Mongolian medicine pills to be dried, and its range is 30~60℃, with a wind speed of 3~3.5m / s). Hot air enters the drying zone through the air distribution port 100 (since the outlet shape of the air distribution port 100 is outward-expanding, the hot air will travel forward, left, right, and up after entering the drying zone) to dry the Mongolian medicine pills in the receiving tray 41. The hot air passes through the through holes on the windward side, the baffle plate 42, and the leeward side of the receiving tray 41, which are all hollowed out, and conducts mass and heat transfer with the Mongolian medicine pills in the receiving tray 41. Since the leeward side of the receiving tray 41 and the baffle plate 42 are at an angle of 75 to 90 degrees to the horizontal plane, some of the hot air will rise and undergo mass and heat transfer with the Mongolian medicine pills on the upper layer.

[0121] The hot air passing through the rack 4 in the drying area (at which point the temperature has decreased and the humidity has increased) rises into the return air duct. When it passes through the heat exchange device 6, it exchanges heat with the heat exchange medium in the heat exchange pipe 63 inside the heat exchange device 6. The water vapor in the hot air is condensed, and the heat is transferred to the heat exchange medium in the heat exchange pipe 63. The circulating water pump 64 then pumps the heat exchange medium after heat exchange into the circulating pipe 15 for circulation to keep the drying room warm. The condensed water vapor condenses into droplets and is finally discharged from the drain pipe 601.

[0122] The hot air passing through the heat exchanger 6 enters the circulating air hood 13 and then passes through the second pipe 1002 and the first pipe 1001 before being discharged outward through the first air inlet 101.

[0123] Internal circulation process: When the temperature-humidity sensor 16 detects that the humidity in the drying zone remains constant within 0.5 to 1 hour (e.g., humidity is 10% ± 0.5%), the first air inlet 101 is closed, and the circulating fan 3, exhaust port 103, and exhaust fan 5 are turned on. The operating speeds of the circulating fan 3, electric hot air fan 2, and exhaust fan 5 are adjusted (e.g., the circulating air speed is adjusted to 2–2.5 m / s, the hot air speed to 3–3.5 m / s, and the exhaust speed of the exhaust fan 5 to 2–2.5 m / s). If the humidity is higher than the 9% moisture content specified by the water pellets... If the drying rate is too high, the hot air temperature can be appropriately increased by 1-2℃ (this process involves uniform heating, for example, a heating rate of 1℃ / h). At this time, after the hot air dries the Mongolian medicine pills, part of it is discharged through the exhaust fan 5, while the other part circulates internally through the return air channel, heat exchange device 6, circulating air hood 13, second pipe 1002, and circulating fan 3 until the temperature-humidity sensor 16 detects that the humidity in the drying zone remains constant within 0.5-1 hour (for example, humidity less than 9.0%). The drying process ends when the pills are cooled to room temperature. The dried Mongolian medicine pills are then obtained. The gas discharged from the exhaust fan 5 is separated by the cyclone separator 7 before being released. To obtain better drying results, the operator can turn the Mongolian medicine pills over or change their positions during the drying process.

[0124] Drying Room Cleaning Process: After the drying process is completed, turn off the electric hot air blower 2 and louvers 65, open the first air inlet 101, and keep the circulating fan 3 and exhaust fan 5 running. The circulating fan 3 blows outside air into the drying area, agitating the dust and volatile gases emitted during the drying process of the pills, which are then extracted by the exhaust fan 5, thus cleaning the drying area. During operation, for example, the circulating air speed can be adjusted to 3–3.5 m / s, and the exhaust air speed can be adjusted to 3–3.5 m / s, continuously for 0.5–1 hour. After the cleaning process is completed, the aforementioned equipment and components that were in the open state can be turned off.

[0125] It should be noted that the drying room cleaning process is not required after each drying process. Rather, it is only required when the current batch of Mongolian medicine pills is different from the next batch. The drying room cleaning process is carried out after the current batch of medicine is dried to prevent the medicine from mixing flavors and affecting the quality and properties of the pills. Alternatively, the drying room cleaning process is also required after the current batch of medicine is dried and no further drying is required.

[0126] Example 1

[0127] A method for drying Mongolian medicine, the operation process is as follows:

[0128] S101. Place the Mongolian medicine pills to be dried in the receiving tray 41, and place the receiving tray 41 on the shelf 4. Open the first air inlet 101, the second air inlet 102, the electric hot air blower 2 and the louver 65, and adjust the hot air speed to 3m / s.

[0129] S102. Raise the temperature in the drying room from room temperature to the optimal drying temperature at a uniform rate and maintain it for 11 hours. The optimal drying temperature is 30℃ and the heating rate is 1℃ / h.

[0130] S103. Close the first air inlet 101, turn on the circulating fan 3, the exhaust port 103 and the exhaust fan 5, adjust the circulating air speed to 2m / s, the hot air speed to 3m / s and the exhaust fan speed of the exhaust fan 5 to 2m / s, keep it at the optimal drying temperature for 8 hours, and then cool it to room temperature to obtain the dried Mongolian medicine pills.

[0131] Example 2

[0132] A method for drying Mongolian medicine, the operation process is as follows:

[0133] S201. Place the Mongolian medicine pills to be dried in the receiving tray 41, and place the receiving tray 41 on the shelf 4. Open the first air inlet 101, the second air inlet 102, the electric hot air blower 2 and the louver 65, and adjust the hot air speed to 3.5m / s.

[0134] S202. Raise the temperature in the drying room from room temperature to the optimal drying temperature at a uniform rate and maintain it for 10 hours. The optimal drying temperature is 60℃ and the heating rate is 2℃ / h.

[0135] S203. Close the first air inlet 101, turn on the circulating fan 3, the exhaust port 103 and the exhaust fan 5, adjust the circulating air speed to 2.5m / s, the hot air speed to 3.5m / s and the exhaust speed of the exhaust fan 5 to 2.5m / s, keep it at the optimal drying temperature for 6 hours, and then cool it to room temperature to obtain the dried Mongolian medicine pills.

[0136] Example 3

[0137] A method for drying Mongolian medicine, the operation process is as follows:

[0138] S301. Place the Mongolian medicine pills to be dried in the receiving tray 41, and place the receiving tray 41 on the shelf 4. Open the first air inlet 101, the second air inlet 102, the electric hot air blower 2 and the louver 65, and adjust the hot air speed to 3m / s.

[0139] S302. Raise the temperature in the drying room from room temperature to the optimal drying temperature at a uniform rate and maintain it for 10-11 hours. The optimal drying temperature is 60℃ and the heating rate is 1℃ / h.

[0140] S303. Close the first air inlet 101, turn on the circulating fan 3, the exhaust port 103 and the exhaust fan 5, adjust the circulating air speed to 2m / s, the hot air speed to 3m / s and the exhaust air speed of the exhaust fan 5 to 2m / s, keep it at the optimal drying temperature for 8 hours, and then cool it to room temperature to obtain the dried Mongolian medicine pills.

[0141] Example 4

[0142] A method for drying Mongolian medicine, the operation process is as follows:

[0143] S401. Place the Mongolian medicine pills to be dried in the receiving tray 41, and place the receiving tray 41 on the shelf 4. Open the first air inlet 101, the second air inlet 102, the electric hot air blower 2 and the louver 65, and adjust the hot air speed to 3m / s.

[0144] S402. Raise the temperature in the drying room from room temperature to the optimal drying temperature at a uniform rate and maintain it for 10-11 hours. The optimal drying temperature is 45℃ and the heating rate is 1℃ / h.

[0145] S4503. Close the first air inlet 101, turn on the circulating fan 3, the exhaust port 103 and the exhaust fan 5, adjust the circulating air speed to 2.5m / s, the hot air speed to 3m / s and the exhaust air speed of the exhaust fan 5 to 2.5m / s, keep it at the optimal drying temperature for 6 hours, and then cool it to room temperature to obtain the dried Mongolian medicine pills.

[0146] Example 5

[0147] A method for drying Mongolian medicine, the operation process is as follows:

[0148] S501. Place the Mongolian medicine pills to be dried in the receiving tray 41, and place the receiving tray 41 on the shelf 4. Open the first air inlet 101, the second air inlet 102, the electric hot air blower 2 and the louver 65, and adjust the hot air speed to 3.5m / s.

[0149] S502. Raise the temperature in the drying room from room temperature to the optimal drying temperature at a uniform rate and maintain it for 10-11 hours. The optimal drying temperature is 50℃ and the heating rate is 1.5℃ / h.

[0150] S503. Close the first air inlet 101, turn on the circulating fan 3, the exhaust port 103 and the exhaust fan 5, adjust the circulating air speed to 2m / s, the hot air speed to 3m / s and the exhaust air speed of the exhaust fan 5 to 2.5m / s, keep it at the optimal drying temperature for 8 hours, and then cool it to room temperature to obtain the dried Mongolian medicine pills.

[0151] Experimental Example

[0152] We randomly selected pills from the same batch produced by our factory and divided them into 5 groups, with 3 replicates in each group. The pills were dried using the method described in Example 3 of this application. The moisture content and dissolution time of the pills were measured using the method in the General Rules for Pills, Part IV, 2020 edition of the Chinese Pharmacopoeia. The results are shown in Table 1.

[0153] Table 1

[0154] Example Moisture content / % Dispersion time / min 1 8.3±0.2 55±2 2 8.5±0.1 54±1.5 3 8.7±0.2 57±1 4 8.1±0.1 55±2 5 8.6±0.1 58±1

[0155] As can be seen from the results in Table 1, the moisture content of the Baterqiwei Pills dried using the method of this application is generally below 9.0%, and the dissolution time is within 60 minutes. That is, the moisture content and dissolution time of the Baterqiwei Pills dried using the method of this application fully comply with the relevant provisions of the General Rules for Pills in Part IV of the 2020 edition of the Chinese Pharmacopoeia.

[0156] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A Mongolian medicine drying room, characterized in that, Includes a drying chamber body (1), the interior of which is divided into a heating zone and a drying zone by a vertically arranged partition (11); A shelf (12) is provided horizontally at the top of the partition (11), and the space between the shelf (12) and the inner top of the drying chamber body (1) forms a return air channel; the heating zone and the drying zone are connected through the return air channel; The heating zone is equipped with an electric hot air blower (2), a circulating fan (3) and a circulating hood (13); An air vent (100) is provided at the lower center of the partition (11), and the output ends of the electric heating fan (2) and the circulating fan (3) are connected to the air vent (100); The drying chamber body (1) has a first air inlet (101) and a second air inlet (102) on the side away from the partition (11) in the heating zone. The first air inlet (101) is connected to the input end of the circulating fan (3) through a first pipe (1001). The input end of the electric heating fan (2) is connected to the second air inlet (102). The circulating air hood (13) is connected to the first pipe (1001) through the second pipe (1002), and the inlet of the circulating air hood (13) covers the cross-section of the return air channel; Multiple shelves are installed in the drying area (4); An exhaust port (103) is provided on one side of the drying area of ​​the drying chamber body (1) away from the partition (11), and the exhaust port (103) is connected to the exhaust fan (5) through the exhaust hood (14). A heat exchange device (6) is installed in the return air duct. The heat exchange device (6) is connected to the circulation pipe (15) embedded in the wall of the drying room body (1). The windward side of the heat exchange device (6) covers the cross-section of the return air duct. Temperature and humidity sensors (16) are respectively installed on multiple of the aforementioned shelves (4); The wall of the drying chamber body (1) includes, from the center outwards, an insulation layer (1101), a waterproof layer (1102), a buffer layer (1103), and a rigid support layer (1104); the circulation pipe (15) is buried between the waterproof layer (1102) and the buffer layer (1103) near the interior of the drying chamber body (1); The heat exchange device (6) includes a shell (61), and a grid frame (62) for receiving the heat exchange pipe (63) is provided at the lower part of the shell (61). A circulating water pump (64) is also provided inside the shell (61). The output end of the heat exchange pipe (63) is connected to the input end of the circulating water pump (64), the output end of the circulating pipe (15) is connected to the input end of the heat exchange pipe (63), and the output end of the circulating water pump (64) is connected to the input end of the circulating pipe (15). The leeward side of the heat exchange device (6) is a louver (65). A drain pipe (601) is provided at the bottom of the side of the housing (61), the drain pipe (601) passes through the side of the drying chamber body (1) and extends out of the drying chamber body (1).

2. The Mongolian medicine drying room according to claim 1, characterized in that, The inner top wall of the housing (61) is provided with a spray head (66), and the spray head (66) is connected to the water supply pipe (602) through a water distribution branch pipe (67).

3. The Mongolian medicine drying room according to claim 1, characterized in that, A filter screen (68) is provided inside the housing (61) near the louver (65).

4. The Mongolian medicine drying room according to claim 1, characterized in that, The shelf (4) is provided with a multi-layer receiving tray (41). The windward side and the leeward side of the receiving tray (41) are hollowed out, and the hollowed-out through holes are parallel to the direction of hot air travel. The bottom surface of the receiving tray (41) is also hollowed out, and the direction of the hollowed-out through holes on the bottom surface is perpendicular to the direction of hot air travel. The height of the leeward side of the receiving plate (41) is 1.5 to 2.2 times that of the windward side, and the leeward side forms an angle of 75 to 90 degrees with the horizontal plane.

5. The Mongolian medicine drying room according to claim 4, characterized in that, Multiple baffles (42) perpendicular to the direction of hot air are arranged in parallel between the windward side and the leeward side of the receiving plate (41). The structure of the baffles (42) is completely consistent with that of the leeward side.

6. The Mongolian medicine drying room according to claim 1, characterized in that, The output end of the exhaust fan (5) is connected to a cyclone separator (7).

7. The Mongolian medicine drying room according to claim 1, characterized in that, Both the first air inlet (101) and the second air inlet (102) are equipped with air filters; A dehumidifier (8) is connected to the outside of the second air inlet (102).

8. A method for drying Mongolian medicine, applied to the Mongolian medicine drying room according to any one of claims 1 to 7, characterized in that, Includes the following steps: 1) Place the Mongolian medicine pills to be dried in the receiving tray (41) and place the receiving tray (41) on the shelf (4). Open the first air inlet (101), the second air inlet (102), the electric hot air blower (2) and the louvers (65), and adjust the hot air speed to 3~3.5m / s; 2) Raise the temperature in the drying room from room temperature to the optimal drying temperature at a uniform rate and maintain it for 10-11 hours. The optimal drying temperature is 30-60℃, and the heating rate is 1-2℃ / h. 3) Close the first air inlet (101), turn on the circulating fan (3), the exhaust port (103) and the exhaust fan (5), adjust the circulating wind speed to 2~2.5m / s, the hot air speed to 3~3.5m / s, and the exhaust wind speed of the exhaust fan (5) to 2~2.5m / s, keep it at the optimal drying temperature for 6~8 hours, and then cool it to room temperature to obtain the dried Mongolian medicine pills.

Images