Traditional Chinese medicine concentrating and paste collecting device

Abstract

The utility model relates to a traditional Chinese medicine concentration and paste collection device which is characterized by comprising a preheating unit, an evaporation and concentration unit, a paste collection unit, a condensate water unit and a vacuum unit which are connected in sequence, the evaporation and concentration unit comprises a steam heat pump falling film concentration unit and a concentration unit, the preheating unit is connected with the steam heat pump falling film concentration unit, the steam heat pump falling film concentration unit is connected with the concentration unit, and the concentration unit is connected with the paste collecting unit. According to the utility model, the steam heat pump is combined with the falling film process, so that the operation energy consumption is effectively reduced, and the energy consumption for evaporating 1 ton of water is about 1 / 6-1 / 5 of that of the traditional evaporator; the liquid storage chamber of the concentration unit and the separation chamber are integrated with the steam heat pump falling film concentration unit through special design, so that the investment cost of equipment is saved, and meanwhile, the device is simple in technological process, easy to implement, high in automation degree and low in operation cost, meets the sustainable development requirement and can be widely applied to the actual industrial production process.

Description

Technical Field

[0001] The utility model belongs to the field of traditional Chinese medicine concentration, in particular to a device for concentrating and collecting traditional Chinese medicine paste. Background Art

[0002] In recent years, environmental and energy issues have become the most prominent issues affecting the long-term stable development of countries and enterprises. With the rapid development of the pharmaceutical industry, the types of Chinese medicine are increasing, and the use of concentrated paste technology is becoming more and more widespread. However, the traditional concentrated paste technology has high energy consumption and low heat utilization, which increases corporate costs and wastes energy. In the context of my country's vigorous promotion of water resource conservation and environmental protection, how to choose a low-energy, short and stable process to achieve concentrated paste of Chinese medicine has become a major problem that plagues industrial enterprises. Utility Model Content

[0003] The utility model aims to overcome the defects of the prior art and provides a device for concentrating and collecting Chinese medicine paste.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A Chinese medicine concentrating and cream collecting device, comprising a preheating unit, an evaporation and concentration unit, a cream collecting unit, a condensing water unit and a vacuum unit connected in sequence;

[0006] The evaporation concentration unit comprises a steam heat pump falling film concentration unit and a concentration unit, the preheating unit is connected to the steam heat pump falling film concentration unit, the steam heat pump falling film concentration unit is connected to the concentration unit, and the concentration unit is connected to the paste collection unit.

[0007] Preferably, the preheating unit comprises a raw material tank 1, a feed pump 2, a condensate preheater 3, a non-condensable gas preheater 4 and a fresh steam preheater 5 which are connected in sequence;

[0008] The non-condensable gas preheater 4 is connected to the vacuum unit, one end of the fresh steam preheater 5 is connected to the feed pipeline of the steam heat pump falling film concentration unit, and the other end is connected to the inlet pipeline of the falling film heat exchanger 12.

[0009] Preferably, the vacuum unit comprises a non-condensable gas condenser 18 and a vacuum pump 17 which are connected in sequence, the non-condensable gas condenser 18 is connected to the non-condensable gas preheater 4, and the vacuum pump 17 is used to connect to the off-site tail gas discharge.

[0010] Preferably, the steam heat pump falling film concentration unit comprises a secondary separator 8, a falling film separator 10, a falling film heat exchanger 12 and a steam compressor 6 connected in sequence;

[0011] The concentration unit comprises a concentrate receiving chamber 19, a concentrate circulation pump 13 and a concentrate heater 14 connected in sequence;

[0012] The falling film heat exchanger 12 is fixedly connected to the concentrate receiving chamber 19, and the concentrate receiving chamber 19 is connected to the paste collecting unit.

[0013] Preferably, the condensate unit comprises a liquid accumulation pump 7, a condensate receiving tank 9 and a condensate pump 20 connected in sequence;

[0014] The liquid accumulation pump 7 is connected to the evaporation concentration unit, and the condensed water receiving tank 9 is connected to the falling film heat exchanger of the evaporation concentration unit and the condensed water receiving tank 9 of the concentrated liquid heater 14.

[0015] Preferably, the paste collecting unit comprises a paste collecting feed pump 15 and a paste collecting device 16 which are connected in sequence;

[0016] The paste collecting feed pump 15 is connected to the concentrate receiving chamber 19 .

[0017] Beneficial effects of the utility model:

[0018] The utility model discloses a Chinese medicine concentrating and collecting paste device which adopts a steam heat pump in combination with a falling film process, which effectively reduces the operating energy consumption. The energy consumption of evaporating 1 ton of water is about 1 / 6 to 1 / 5 of that of a traditional evaporator. The liquid storage and separation chamber of the concentration unit are integrated with the steam heat pump falling film concentration unit through a special design, thereby saving the investment cost of the equipment. At the same time, the device has a simple process flow, is easy to implement, has a high degree of automation, and has a low operating cost. It meets the requirements of sustainable development and can be widely used in actual industrial production processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a schematic diagram of the structure of a Chinese medicine concentrating and paste collecting device. DETAILED DESCRIPTION

[0020] In order to better understand the technical solution of the utility model, Figure 1 The embodiments provided by the utility model are described in detail.

[0021] Embodiments of the present utility model:

[0022] The Chinese medicine concentrating and collecting paste device in the embodiment of the utility model uses water to extract Chinese medicine, the applicable processing temperature is 60°C, the total mass fraction of various Chinese medicine components is 5%, and the water mass fraction flow rate is 95%, wherein, Figure 1As shown, the preheating unit includes a raw material tank 1, a feed pump 2, a condensate preheater 3, a non-condensable gas preheater 4 and a fresh steam preheater 5 which are connected in sequence, and the fresh steam preheater 5 is connected to the inlet pipe of the falling film heat exchanger 12. After the water-extracted herbal solution to be treated is stored in the raw material tank 1, it enters the condensate preheater 3, the non-condensable gas preheater 4 and the fresh steam preheater 5 in sequence through the action of the feed pump 2. After being preheated so that the raw material liquid temperature reaches 60°C, it enters the steam heat pump falling film concentration unit, wherein the pressure of the fresh steam in the fresh steam preheater 5 is a gauge pressure of 98KPa and a temperature of 119°C. The condensate preheater 3, the non-condensable gas preheater 4 and the fresh steam preheater 5 are all plate preheaters. The device 3 is connected to a condensate tank 9 through the condensate pump 20; the steam heat pump falling film concentration unit includes a secondary separator 8, a falling film separator 10, a falling film heat exchanger 12 and a steam compressor 6 connected in sequence; after the 60°C water-extracted herbal solution enters the steam heat pump falling film concentration unit, it is transported by the falling film circulation pump 11 and enters the falling film heat exchanger 12. After heating and evaporation, it enters the falling film separator 10 for vapor-liquid separation. The evaporation temperature in the membrane separator 10 is 57°C and the pressure is -83KPa; separation The secondary steam is separated into gas and liquid by the falling film separator 10, and then enters the steam compressor 6 for compression, temperature and pressure increase to 65°C and -75kPa, and then returns to the falling film heat exchanger 12 for shell heating. After flash separation from the falling film heat exchanger 12, about 40% of the Chinese medicine concentrate overflows to the concentration unit; the concentration unit includes a concentrate receiving chamber 19, a concentrate circulation pump 13 and a concentrate heater 14 connected in sequence; in the falling film heat exchanger 12, about 40% of the Chinese medicine concentrate overflows to the concentrate receiving chamber 19, and after the concentrate circulation pump 13 and the concentrate heater 14 are connected in sequence, The ring pump 13 pumps the material into the concentration heater 14 for heating and evaporation again. The concentration heater 14 uses 119°C, 98kPa fresh steam to continue heating and concentration, and controls the material temperature in the concentration evaporation chamber to be 75°C, and evaporation is cyclically carried out in this way; the paste collecting unit includes a paste collecting feed pump 15 and a paste collecting device 16 connected in sequence; the 75°C 60% Chinese medicine concentrated liquid generated by flash separation in the concentrated liquid receiving chamber 19 is fed from the bottom into the paste collecting device 16 through the paste collecting feed pump 15, and is cooled to 40°C by the paste collecting device 16 to form a paste;

[0023] In addition to the above material flow, the system also has a vacuum unit for controlling vacuum, which includes a non-condensable gas condenser 18 and a vacuum pump 17 connected in sequence. The non-condensable gas condenser 18 is connected to the non-condensable gas preheater 4 of the preheating unit. The vacuum pump 17 is used to connect the exhaust gas discharge outside the boundary, and the pressure of the falling film separator is controlled by vacuum to be -83KPa. The shell-side condensed water from the non-condensable gas condenser 18, the non-condensable gas preheater 4, the fresh steam preheater 5, and the falling film heat exchanger 12 is connected to the condensate receiving tank 9 of the condensate unit. The condensate unit includes a liquid accumulation pump 7, a condensate receiving tank 9, and a condensate pump 20 connected in sequence. The condensate is collected by the condensate receiving tank 9. The liquid accumulation pump receives the liquid accumulated in the compressor 6 and is transported to the condensate receiving tank 9 through the liquid accumulation pump 7. The condensate in the condensate receiving tank 9 is transported to the condensate preheater 3 through the condensate pump 20 for preheating and then transported out of the system.

[0024] The above is a detailed introduction to the Chinese medicine concentration and paste collection device provided in the embodiment of the utility model. For general technicians in this field, according to the ideas of the embodiment of the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A Chinese medicine concentrating paste collecting device, characterized in that: A preheating unit, an evaporation and concentration unit, a cream collecting unit, a condensing water unit and a vacuum unit connected in sequence; The evaporation concentration unit comprises a steam heat pump falling film concentration unit and a concentration unit, the preheating unit is connected to the steam heat pump falling film concentration unit, the steam heat pump falling film concentration unit is connected to the concentration unit, and the concentration unit is connected to the paste collection unit.

2. A Chinese medicine concentrating paste collecting device according to claim 1, characterized in that: The preheating unit comprises a raw material tank (1), a feed pump (2), a condensate preheater (3), a non-condensable gas preheater (4) and a fresh steam preheater (5) which are connected in sequence; The non-condensable gas preheater (4) is connected to the vacuum unit, and one end of the fresh steam preheater (5) is connected to the feed pipeline of the steam heat pump falling film concentration unit, and the other end is connected to the inlet pipeline of the falling film heat exchanger (12).

3. A Chinese medicine concentrating paste collecting device according to claim 2, characterized in that: The vacuum unit comprises a non-condensable gas condenser (18) and a vacuum pump (17) which are connected in sequence, the non-condensable gas condenser (18) being connected to the non-condensable gas preheater (4), and the vacuum pump (17) being used to connect to an off-site tail gas discharge.

4. A Chinese medicine concentrating paste collecting device according to claim 3, characterized in that: The steam heat pump falling film concentration unit comprises a secondary separator (8), a falling film separator (10), a falling film heat exchanger (12) and a steam compressor (6) which are connected in sequence; The concentration unit comprises a concentrate receiving chamber (19), a concentrate circulation pump (13) and a concentrate heater (14) which are connected in sequence; The falling film heat exchanger (12) is fixedly connected to the concentrate receiving chamber (19), and the concentrate receiving chamber (19) is connected to the paste collecting unit.

5. A Chinese medicine concentrating paste collecting device according to claim 4, characterized in that: The condensate unit comprises a liquid accumulation pump (7), a condensate receiving tank (9) and a condensate pump (20) which are connected in sequence; The accumulating liquid pump (7) is connected to the evaporation concentration unit, and the condensed water receiving tank (9) is connected to the condensed water receiving tank (9) of the falling film heat exchanger and the concentrated liquid heater (14) of the evaporation concentration unit.

6. A Chinese medicine concentrating paste collecting device according to claim 5, characterized in that: The paste collecting unit comprises a paste collecting feeding pump (15) and a paste collecting device (16) which are connected in sequence; The paste collecting feed pump (15) is connected to the concentrate receiving chamber (19).

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