CN102538399A - Drying equipment for Chinese herbal medicine - Google Patents

Abstract

The invention discloses a Chinese herbal medicine drying equipment, which comprises a pre-drying room, a drying room, a hot air room, a residual temperature recovery treatment room, a solar heat collector, and a heat pump system, wherein the pre-drying room is connected with the drying room, and the pre-drying room is connected with the drying room. A fan is installed between the chambers; the solar wall collector sends the preheated air into the drying chamber through the hot air chamber. After heating the material, the air is sent into the pre-drying chamber through the fan, and finally the waste heat is recovered by the heat pump system in the waste temperature recovery treatment chamber. recycle and re-use. This Chinese herbal medicine drying equipment adopts heat pump and solar energy technology to dry Chinese medicinal materials such as aconite at a temperature lower than 75°C, which can ensure that the quality of medicinal materials will not be affected by high temperature; compared with electric heating, it can save energy by more than 50% and reduce production costs; Clean production process, protect the ecological environment.

Description

A kind of Chinese herbal medicine drying equipment

technical field

The invention relates to a Chinese herbal medicine drying equipment, which belongs to the technical field of Chinese herbal medicine processing equipment.

Background technique

Chinese medicinal materials such as aconite that are not easy to preserve after harvesting are generally dried by coal heating or electric heating. At present, the drying process of traditional Chinese medicinal materials such as aconite has the following problems: (1) high temperature causes the loss of active ingredients in the medicinal materials; (2) high temperature drying processes such as coal heating cause the medicinal materials to be polluted or produce and accumulate harmful substances; (3) high temperature drying energy consumption Large, coal heating and other processes have a more serious impact on the environment. Compared with electric energy drying, this process can save energy by more than 50%; change the current environmentally unfriendly production process into a clean production process, and contribute to the production of safe medicines, the improvement of corporate profits, and the development of a low-carbon economy.

There are some hidden dangers in these processes: (1) high temperature leads to the loss of active ingredients in medicinal materials; (2) high-temperature drying processes such as coal heating cause medicinal materials to be polluted or generate and accumulate harmful substances; (3) high-temperature drying consumes a lot of energy, and coal heating and other processes The impact on the environment is more serious.

Contents of the invention

The technical problem to be solved by the present invention is to provide a Chinese herbal medicine drying equipment for the deficiencies of the prior art.

A Chinese herbal medicine drying equipment, including a pre-drying room, a drying room, a hot air room, a residual temperature recovery treatment room, a solar collector, and a heat pump system, wherein the pre-drying room is connected to the drying room, and the pre-drying room is arranged between the drying room Fan: The solar wall collector sends the preheated air into the drying room through the hot air chamber. After heating the material, the air is sent into the pre-drying room through the fan, and finally the waste heat is recovered and utilized through the heat pump system in the waste temperature recovery treatment room.

In the Chinese herbal medicine drying equipment, a heat pump condenser (14) is arranged in the residual temperature recovery treatment room, and the heat pump condenser (14) recovers and transports the heat in the residual temperature recovery treatment room to the heat pump condenser (8) through the pipeline (13). ), the heat pump condenser (8) is arranged in the hot air chamber.

This Chinese herbal medicine drying equipment adopts heat pump and solar energy technology to dry Chinese medicinal materials such as aconite at a temperature lower than 75°C. (1) It can ensure that the quality of medicinal materials will not be affected by high temperature; (2) Compared with electric energy heating, it can save more than 50 %, reduce production cost; (3) clean production process, protect ecological environment.

Description of drawings

Fig. 1 is a schematic structural view of the drying equipment for Chinese herbal medicines of the present invention.

Detailed ways

The present invention will be described in detail below in conjunction with specific embodiments.

Referring to Fig. 1, the Chinese herbal medicine drying equipment includes a pre-drying chamber 1, a drying chamber 3, a hot air chamber 6, a waste temperature recovery treatment chamber 15, a solar heat collector (connected with the hot air inlet 10 in Fig. 1), a heat pump system (connected with the hot air inlet 10 in Fig. The middle pipeline 7 is connected), wherein the pre-drying chamber 1 is connected with the drying chamber 2, and the fan 2 is arranged between the pre-drying chamber 1 and the drying chamber 2; the solar wall collector sends the preheated air into the drying chamber through the hot air chamber 6 , after heating the material, the air is sent into the pre-drying chamber 1 through the fan 2, and finally the residual temperature recovery treatment chamber 15 is used to recycle the preheating. Drying Chinese medicinal materials such as aconite at a temperature lower than 75°C can ensure that the quality of the medicinal materials is not affected by high temperature; compared with electric heating, it can save energy by more than 50% and reduce production costs; clean production process and protect the ecological environment.

In sunny days, after the air is heated by the solar wall heat collector, it is connected with the hot air chamber 6 by a fan 9, and the hot air is introduced into the drying chamber 3 through the hot air chamber 6, and the hot air passes through the material layer on the storage cart 4 to heat the material to make the water The hot and humid air is introduced into the pre-drying chamber 1 by another centrifugal fan 2, and after passing through the material layer to be dried in the pre-drying chamber 1 from bottom to top, the tail gas passes through the return air circulation pipe 11 and then is sent to the solar wall by the fan The heat collector is heated to form a closed-circuit cycle between the heat collector and the drying kiln; as the temperature of the drying chamber increases, the moisture content of the return airflow increases (the temperature and humidity sensors 5 are installed in the hot air chamber 6 to monitor the temperature of the air entering the drying chamber 3 and humidity), at this moment, open the air inlet of the heat collector to introduce fresh air, and send it into the drying chamber 3 after being heated, and the humid air in the drying chamber 3 is discharged to the outside through the dehumidification pipe 12 for an open circuit circulation. When the auxiliary heat source needs to work on cloudy days or at night, it is only necessary to close the air supply channel of the solar wall collector and open the air supply channel of the heat pump. The inlet and outlet of the system are equipped with throttling valves, which can properly adjust the opening and control the ventilation volume.

A heat pump condenser 14 is arranged in the waste temperature recovery treatment chamber 15, and the heat pump condenser 14 recycles and transports the heat in the waste temperature recovery treatment chamber 15 to the heat pump condenser 8 through the pipeline 13, and the heat pump condenser 8 is arranged in the hot air chamber 6, fully Use heat.

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should belong to the protection scope of the appended claims of the present invention.

Claims (2)

1. a Chinese herbal medicine drying plant is characterized in that, comprises predryer, hothouse, hot blast chamber, Yu Wen recycling chamber, solar thermal collector, heat pump, and wherein predryer is connected with hothouse, between predryer and the hothouse blower fan is set; Sun wall heat collector will pass through the air of preheating and send into hothouse through the hot blast chamber, add thermal material after, air is sent into predryer through blower fan, after surplus temperature recycling chamber through heat pump with heat recovery.

2. Chinese herbal medicine drying plant according to claim 1; It is characterized in that; The indoor heat pump condenser (14) that is provided with of said surplus temperature recycling; Heat pump condenser (14) is transported to heat pump condenser (8) through pipeline (13) with the indoor heat recovery of surplus temperature recycling, and it is indoor that heat pump condenser (8) is arranged on hot blast.