Impulse type vacuum drying box for dropping pills

By using a pulsed vacuum drying box during the drying process of Chinese medicine drop pills, the vacuum pump and heating pipe are used to accelerate the extraction of water vapor, combined with the design of the gas tank and pulse nozzle, the problem of slow water vapor emission in the existing dryer is solved, and the problem of slow water vapor emission is achieved. It provides more efficient drying efficiency and a more stable air pressure environment, improving the drying speed and quality of the pills.

CN222143528UActive Publication Date: 2024-12-10GUIZHOU HUATAI PHARM CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202323645535.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-29
Publication Date
2024-12-10
Estimated Expiration
2033-12-29

AI Technical Summary

Technical Problem

During the drying process of traditional Chinese medicine drop pills, the drying efficiency is low due to slow water vapor discharge, which affects the quality and cost of the pills.

Method used

A pulsed vacuum drying box for drip pills is designed, which uses a vacuum pump to extract water vapor, a heating pipe to control the drying temperature, a gas tank provides protection gas, a pulse spray head removes surface bubbles, and a dehumidifier box reduces moisture emissions, ensuring the air pressure in the drying box. Stable humidity and improve drying efficiency.

Benefits of technology

By vacuuming out water vapor and controlling the drying temperature, the drying speed of the pills is significantly accelerated, the pills are swelled due to gas pressure difference is avoided, and the impact of moisture on external equipment is reduced, which improves drying efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222143528U_ABST
    Figure CN222143528U_ABST
Patent Text Reader

Abstract

According to the pulse type vacuum drying box for dropping pills, the temperature sensor, the heating pipe and the vacuum pump are electrically connected with the controller, the controller can control the heating pipe to heat the interior of the box body, the temperature sensor can upload temperature information in the box body to the controller, the drying temperature in the box body is guaranteed, and the drying effect is improved. And the vacuum pump can generate negative pressure on the box body during working, water vapor in the box body is pumped out, and then drying of the pills is accelerated. The air tank and the controller are arranged to control opening and closing of the first electromagnetic valve, so that the air pressure in the box body is controlled, the interior of the box body is always kept within a certain air pressure range, and the situation that when the vacuum pump works, the pressure in the box body is too small, the air pressure difference inside and outside pills is too large, the pill volume is expanded, and the service life of the pills is prolonged is avoided. After the pills are dried, the second electromagnetic valve is opened through the controller, external air can enter the box body, air pressure inside and outside the box body is balanced, and the box door is convenient to open.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model belongs to the field of drying ovens, and in particular relates to a pulse vacuum drying oven for dripping pills. Background Art

[0002] The drying process of Chinese medicine pills is an important and indispensable process in the production of preparations. The quality of the drying process will directly affect the performance, quality, appearance and cost of the product. Since Chinese medicine pills usually have high water content and poor air permeability, the existing dryers usually need to dry the pills at a high temperature for a long time to achieve the desired effect. Since the pills contain a large amount of water, a large amount of water vapor will be generated during drying. The existing dryers usually allow the water vapor to be automatically discharged into the air. This method of discharging water vapor is slow and not conducive to the drying of pills. Utility Model Content

[0003] The utility model provides a pulse vacuum drying oven for pills to solve the above problems existing in the current drying machine in the drying of pills. The specific solution is as follows:

[0004] A pulse vacuum drying oven for pills, comprising:

[0005] A box body, wherein a partition is arranged in the box body, and a baking tray is placed on the partition;

[0006] A box door, the box door is connected to the box body via a hinge;

[0007] A gas tank containing protective gas, wherein the gas tank has a gas outlet connected to one end of a gas main pipe, the other end of the gas main pipe is connected to a gas branch pipe, a pulse nozzle is provided on the gas branch pipe, and the pulse nozzle is located above the baking plate (14);

[0008] A heating pipe, the heating pipe is arranged in the box body and below the partition;

[0009] A vacuum pump, the vacuum pump is arranged on the upper part of the box, and an air inlet end of the vacuum pump is connected to the box through a pipeline;

[0010] An air pressure sensor and a temperature sensor, wherein the air pressure sensor and the temperature sensor are arranged on the box, and the probes of the air pressure sensor and the temperature sensor are located in the box;

[0011] a first solenoid valve, wherein the first solenoid valve is arranged on the gas main pipe;

[0012] a second solenoid valve, the second solenoid valve being arranged on an exhaust pipe connected to the housing;

[0013] A controller is arranged on the box body and is electrically connected to the heating tube, the vacuum pump, the air pressure sensor, the temperature sensor, the first solenoid valve, and the second solenoid valve.

[0014] Furthermore, a dehumidification box is provided on the pipeline connecting the air inlet end of the vacuum pump and the box body, and activated carbon is provided in the dehumidification box. The gas in the box body enters the vacuum pump after being dehumidified and filtered by the activated carbon.

[0015] Furthermore, the air outlet end of the vacuum pump is connected to one end of a return air pipe, and the other end of the return air pipe is delayed to the lower part of the box.

[0016] Furthermore, there are multiple pulse nozzles, which are evenly arranged on the gas transmission branch pipe.

[0017] Furthermore, the partition is provided with a first ventilation hole.

[0018] Furthermore, the baking tray is provided with a second air hole.

[0019] Furthermore, the baking tray is arranged as a partition, and when the baking tray is placed on the partition, a gap is left between the baking tray and the partition.

[0020] Furthermore, the baking tray is provided with a handle.

[0021] Furthermore, the box door is provided with a handle.

[0022] The beneficial effects of the utility model are:

[0023] 1. By setting up a temperature sensor, a heating tube, a vacuum pump and an electrical connection with the controller, the controller can control the heating tube to heat the inside of the box, and the temperature sensor can upload the temperature information inside the box to the controller, thereby ensuring the drying temperature inside the box. When working, the vacuum pump can generate negative pressure on the box, extract the water vapor in the box, and thus speed up the drying of the pills.

[0024] 2. By setting up a gas tank, the controller controls the opening and closing of the first solenoid valve, and then controls the air pressure inside the box, so that the inside of the box is always maintained in a certain gas pressure range, avoiding the situation that when the vacuum pump is working, the pressure inside the box is too low, resulting in a large pressure difference between the gas inside and outside the pills, causing the volume of the pills to expand. When the pills are dried, the second solenoid valve is opened by the controller, and the external gas can enter the box, so that the air pressure inside and outside the box is balanced, which is convenient for opening the box door.

[0025] 3. By setting up a dehumidification box with activated carbon in it, when the vacuum pump draws the gas out of the box, the activated carbon can dehumidify the gas, thereby preventing over-humidified gas from being discharged into the air, increasing the humidity of the air and affecting surrounding equipment.

[0026] 4. By setting a pulse nozzle, the controller can spray the protective gas in the gas tank from the pulse nozzle by opening the first solenoid valve, which can remove bubbles on the surface of the pills, thereby accelerating the drying of the pills. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a pulse vacuum drying oven for pills;

[0028] Figure 2 It is a schematic diagram of the overall structure of a pulse vacuum drying oven for pills;

[0029] Figure 3 This is a schematic diagram of the internal structure of a pulse vacuum drying oven for pills;

[0030] Figure 4 This is a schematic diagram of the internal structure of a pulse vacuum drying oven for pills;

[0031] Figure 5 for Figure 4 Explosion diagram of

[0032] Figure 6 for Figure 4 A local enlarged schematic diagram of the middle A;

[0033] Figure 7 This is a schematic diagram of electrical connections for a pulse vacuum drying oven for pills;

[0034] In the figure: 10, box body; 11, box door; 12, partition; 13, first air vent; 14, baking tray; 15, second air vent; 16, dehumidification box; 17, activated carbon; 20, gas tank; 21, gas main pipe; 22, gas branch pipe; 23, pulse nozzle; 24, return air pipe; 25, exhaust pipe; 30, controller; 31, heating pipe; 32, vacuum pump; 33, air pressure sensor; 34, temperature sensor; 35, first solenoid valve; 36, second solenoid valve. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 As shown, the utility model provides a pulse vacuum drying box for pills, comprising: a box body 10, a partition 12 is arranged in the box body 10, and a baking tray 14 is placed on the partition 12; a box door 11, and the box door 11 is connected to the box body 10 by a hinge; a gas tank 20, the gas tank 20 contains protective gas, the gas outlet of the gas tank 20 is connected to one end of a gas main pipe 21, and the other end of the gas main pipe 21 is connected to a gas branch pipe 22, and a pulse nozzle 23 is arranged on the gas branch pipe 22, and the pulse nozzle 23 is located above the baking tray 14, and the pulse nozzle 23 has a plurality of them, which are evenly arranged on the gas branch pipe 22; a heating pipe 31, the heating pipe 31 is arranged in the box body 10, and the heating pipe 31 is mainly an electric heating pipe, and is located under the partition 12 a vacuum pump 32, which is arranged on the upper part of the box body 10, and its air inlet end is connected with the box body 10 through a pipeline; an air pressure sensor 33, a temperature sensor 34, which are arranged on the box body 10, and the probes of the air pressure sensor 33 and the temperature sensor 34 are located in the box body 10; a first solenoid valve 35, which is arranged on the gas main pipe 21; a second solenoid valve 36, which is arranged on the exhaust pipe 25 connected with the box body 10; a controller 30, which is arranged on the box body 10 and is electrically connected with the heating pipe 31, the vacuum pump 32, the air pressure sensor 33, the temperature sensor 34, the first solenoid valve 35, and the second solenoid valve 36.

[0037] like Figure 1 , Figure 2 , Figure 5 As shown, in the above embodiment, a dehumidification box 16 is provided on the pipe connecting the air inlet end of the vacuum pump 32 and the box 10, and activated carbon 17 is provided in the dehumidification box 16. The gas in the box 10 enters the vacuum pump 32 after being dehumidified and filtered by the activated carbon 17. The air outlet end of the vacuum pump 32 is connected to one end of the return air pipe 24, and the other end of the return air pipe 24 is delayed to the lower part of the box 10.

[0038] In the above, the partition 12 is provided with a first ventilation hole 13, and the baking tray 14 is provided with a second ventilation hole 15. The baking tray 14 is provided as a partition. When the baking tray 14 is placed on the partition 12, there is a gap between the baking tray 14 and the partition 12. In order to facilitate taking out the baking tray 14 and opening the door 11, the baking tray 14 and the door 11 are provided with handles.

[0039] The working principle of the utility model is:

[0040] When drying the pills, put the pills in a baking tray, place the baking tray on the partition, and close the door. Then set the drying air pressure and drying temperature from the controller, and then turn on the vacuum pump and heating tube. The heating tube heats the box, and the vacuum pump extracts the water vapor generated in the box. The air pressure sensor and temperature sensor upload the air pressure signal and temperature signal in the box to the controller. When the air pressure in the box is lower than the preset range, the controller turns on the first solenoid valve and closes the second solenoid valve. The protective gas in the gas tank is sprayed into the box from the pulse nozzle. When the air pressure reaches the preset range, the first solenoid valve is closed. After the pills are dried, turn off the heating tube and vacuum pump from the controller, and turn on the second solenoid valve through the controller. The external gas enters the box to achieve internal and external pressure balance, and then open the door through the handle to take out the baking tray.

[0041] In the above, by setting a temperature sensor, a heating tube, and a vacuum pump to be electrically connected with the controller, the controller can control the heating tube to heat the inside of the box, and the temperature sensor can upload the temperature information in the box to the controller, thereby ensuring the drying temperature in the box. When the vacuum pump is working, it can generate negative pressure on the box, extract the water vapor in the box, and then accelerate the drying of the pills. By setting a gas tank, the controller controls the opening and closing of the first electromagnetic valve, and then controls the air pressure inside the box, so that the inside of the box is always kept in a certain gas pressure range, avoiding that when the vacuum pump is working, the pressure inside the box is too small, causing the gas pressure difference inside and outside the pills to be too large, causing the pill volume to expand. After the pills are dried, the second electromagnetic valve is opened by the controller, and the external gas can enter the box, so that the air pressure inside and outside the box is balanced, which is convenient for opening the box door. By setting a dehumidification box, activated carbon is set in the dehumidification box. When the vacuum pump extracts the gas in the box, the activated carbon can dehumidify the gas, thereby avoiding that the over-humidified gas is discharged into the air, increasing the humidity of the air, and affecting the surrounding equipment. By setting a pulse nozzle, the controller can open the first solenoid valve to eject the protective gas in the gas tank from the pulse nozzle, which can remove bubbles on the surface of the pills, thereby accelerating the drying of the pills. By setting a first air hole on the partition and a second air hole on the baking tray, the baking tray is set as a partition. When the baking tray is placed on the partition, a gap is left between the partition and the partition, which can make the gas in the box flow evenly, thereby accelerating the drying speed of the pills. The gas discharged from the outlet end of the vacuum pump is led to the lower part of the box through the return pipe, which can prevent the gas from being discharged horizontally and blowing to the staff.

[0042] Contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the embodiments of the utility model have been shown and described, it is understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A pulse vacuum drying oven for pills, characterized in that: include: A box body (10), wherein a partition (12) is arranged inside the box body (10), and a baking tray (14) is placed on the partition (12); A box door (11), wherein the box door (11) is connected to the box body (10) via a hinge; A gas tank (20), wherein the gas tank (20) contains protective gas, the gas outlet of the gas tank (20) is connected to one end of a gas main pipe (21), the other end of the gas main pipe (21) is connected to a gas branch pipe (22), a pulse nozzle (23) is provided on the gas branch pipe (22), and the pulse nozzle (23) is located above the baking plate (14); A heating pipe (31), the heating pipe (31) being arranged in the box body (10) and located below the partition plate (12); A vacuum pump (32), the vacuum pump (32) being arranged on the upper part of the box (10), and having an air inlet end connected to the box (10) through a pipeline; An air pressure sensor (33) and a temperature sensor (34), wherein the air pressure sensor (33) and the temperature sensor (34) are arranged on the box (10), and probes of the air pressure sensor (33) and the temperature sensor (34) are located inside the box (10); a first solenoid valve (35), the first solenoid valve (35) being arranged on the gas main pipe (21); a second solenoid valve (36), the second solenoid valve (36) being arranged on an exhaust pipe (25) communicating with the housing (10); A controller (30), wherein the controller (30) is disposed on the housing (10) and is electrically connected to the heating tube (31), the vacuum pump (32), the air pressure sensor (33), the temperature sensor (34), the first solenoid valve (35), and the second solenoid valve (36).

2. The pulse vacuum drying oven for pills according to claim 1, characterized in that: A dehumidification box (16) is arranged on a pipeline connecting the air inlet end of the vacuum pump (32) and the box body (10), and activated carbon (17) is arranged in the dehumidification box (16). The gas in the box body (10) enters the vacuum pump (32) after being dehumidified and filtered by the activated carbon (17).

3. A pulse vacuum drying oven for pills according to claim 2, characterized in that: The air outlet end of the vacuum pump (32) is connected to one end of the air return pipe (24), and the other end of the air return pipe (24) is extended to the lower part of the box body (10).

4. A pulse vacuum drying oven for pills according to claim 3, characterized in that: There are a plurality of pulse nozzles (23) which are evenly arranged on the gas transmission branch pipe (22).

5. A pulse vacuum drying oven for pills according to claim 4, characterized in that: The partition plate (12) is provided with a first ventilation hole (13).

6. A pulse vacuum drying oven for pills according to claim 5, characterized in that: The baking tray (14) is provided with a second air hole (15).

7. A pulse vacuum drying oven for pills according to claim 6, characterized in that: The baking tray (14) is arranged as a partition. When the baking tray (14) is placed on the partition (12), a gap is left between the baking tray (14) and the partition (12).

8. A pulse vacuum drying oven for pills according to claim 7, characterized in that: The baking tray (14) is provided with a handle.

9. A pulse vacuum drying oven for pills according to claim 8, characterized in that: The box door (11) is provided with a handle.