Vacuum spray drying method for liquid material and vacuum continuous spray drying machine

A vacuum spray drying and spray drying machine technology, which is applied in the direction of non-progressive dryers, drying machines, drying solid materials, etc., can solve the problems of material instability, high energy consumption, and high temperature, and achieve low temperature and low energy consumption. Low, little pollution effect

Inactive Publication Date: 2008-08-27
刘贤英 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the existing atmospheric pressure spray dryers such as high temperature, instability to materials, high energy consumption, high noise, and large pollution, the present invention provides a continuous, low-temperature, fast, low-energy consumption, reasonable process, and wide application. It can be suitable for vacuum spray drying method and vacuum continuous spray dryer for heat-sensitive, easily oxidized, and high-sugar liquid materials

Method used

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  • Vacuum spray drying method for liquid material and vacuum continuous spray drying machine

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment one: the situation that " lactose solution " is dried, its data are as follows:

[0022] Lactose solution: 8% lactose; 92% water

[0023] Tank temperature: 40~60℃ Vacuum degree: 40KPa~80KPa

[0024] Material preheating temperature: 40~60℃

[0025] Moisture content of final dry "lactose" powder: 6%

[0026] Effect: Improve production efficiency (while the conventional centrifugal spray drying method is easy to gelatinize and cannot be dried)

Embodiment 2

[0027] Embodiment two: The situation that " acetylglutamine for injection " is dried, its data are as follows:

[0028] Aseptic treatment of "Aceglutamine for Injection" solution: filter and sterilize with a 0.2μ microporous membrane to make a sterile solution, and the water content of the material is 74.2%;

[0029] Tanks and pipelines are cleaned and sterilized;

[0030] Temperature inside the drying tank: 35~50℃ Vacuum degree: 40KPa~80KPa

[0031] Material preheating temperature: 35~50℃

[0032] The final water content of "Aceglutamine for Injection" sterile powder: 4%.

[0033] Effect: Improve production efficiency. It takes 55 hours to freeze-dry a batch, but it only takes 5 hours to use vacuum continuous spray drying method, which improves production efficiency by 10 times.

Embodiment 3

[0034] Embodiment three: the situation that " compound Chinese medicine hypoglycemic king " aqueous extract is dried, its data are as follows:

[0035] Compound Chinese medicine hypoglycemic aqua regia extract:

[0036] Density: 1.15~1.35g / cm 3 ; Moisture content: 38%

[0037] Temperature inside the tank: 50~80℃; Vacuum degree: 30KPa~60KPa;

[0038] Material preheating temperature: 50~80℃;

[0039] Final moisture content: 3%.

[0040] Effect: Improve production efficiency ≥ 2 times;

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Abstract

The preheated liquid material is jetted continuously via high speed centrifugal nozzle into vacuum pumped and heated tank for continuous vacuum drying. The drying machine includes tank with liquid material inlet and nozzle, electric temperature and vacuum controlling box, air heater connected via air filter to the tank, and vacuum pump connected to the tank for vacuum pumping. The present invention has the advantages of being continuous, low temperature, fast speed, low power consumption, reasonable technological process, wide application range, etc, and is especially suitable for producing bacteria-free medicine powder, etc. The vacuum spray drying method may be used to replace freeze drying method to save time and raise output, and the spray drying machine is ideal apparatus for drying heat sensitive, easy-to-oxidize and high sugar content material.

Description

(1) Technical field [0001] The invention relates to a vacuum spray drying method for liquid materials and a vacuum continuous spray dryer, which are mainly used for low-temperature and rapid drying treatment of liquid materials such as medicines, traditional Chinese medicine liquid extracts, chemical raw materials, and food raw materials, and can also be used for low-temperature drying of other materials. , Rapid drying treatment, it is an ideal drying equipment for heat-sensitive, easily oxidized, and high-sugar materials. (2) Background technology [0002] At present, the drying of liquid medicines, traditional Chinese medicine liquid extracts, chemical raw materials, and food raw materials mainly uses atmospheric pressure high-speed centrifugal spray dryers and airflow spray dryers for spray drying. Since it is atmospheric pressure spray drying, the hot air entering the drying tank It must be above 130°C to vaporize and separate the sprayed very fine material mist droplet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B5/04F26B11/02
Inventor 刘贤英刘贤电
Owner 刘贤英
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