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    1. Drying

      BVD Series Vacuum Belt Drying Unit

      Vacuum belt dryer principle

      Belt Vacuum Drying (BVD) is a method of continuously distributing liquid raw materials on a conveyor belt under vacuum conditions. The materials are dried with the conveyor belt on the heating plate, and then cooled, embrittled and pulverized. A low temperature drying method. During the whole drying process, the extract is in a vacuum, closed environment, and the drying process is mild

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      Vacuum belt dryer principle

      Belt Vacuum Drying (BVD) is a method of continuously distributing liquid raw materials on a conveyor belt under vacuum conditions. The materials are dried with the conveyor belt on the heating plate, and then cooled, embrittled and pulverized. A low temperature drying method. During the whole drying process, the extract is in a vacuum, closed environment, and the drying process is mild (operating temperature 30-135° C), which can maintain its physical properties to the maximum extent and obtain a high quality final product.
      Since the material is gradually dried under a vacuum for a period of time, the particles obtained by drying have a certain degree of crystallization effect, and at the same time, there are micropores inside from the microscopic structure. After directly pulverizing to the required particle size, the flowability of the particles is very good, and it can be directly tableted or filled with mash, and the particles have good fast solubility.
      In addition, a series of parameters can be adjusted online to meet the process requirements of different products, such as the belt speed of the vacuum (solid) belt drying track, the thickness of the layer, the drying temperature, the vacuum degree and etc. The dry product can retain its color, aroma and taste to the utmost extent, and obtain a high quality final product.
      Vacuum belt drying technology has a wide range of applications and can be applied to most extracts and solid. Especially for materials with high viscosity, easy to build, thermoplastic and heat sensitive, vacuum belt drying can overcome the shortcomings of too dry and too dense spray drying powder. In addition, a series of parameters such as drying time of vacuum belt drying, feed rate, material thickness, drying temperature and environmental vacuum can be adjusted to suit the process requirements of different products, for heat sensitivity, high concentration, high sugar content, Materials such as high viscosity are also fully tested. At this point, belt vacuum dryers are far superior to spray dryers.

      BVD Series vacuum belt drying unit overview
      BVD series vacuum belt drying unit is a modern pharmaceutical equipment that Wenzhou Jinbang Light Industry Machinery Co., Ltd. has successfully developed in recent years.

      The only equipment manufacturer in China that has obtained 2 invention patents in the field of vacuum belt dryers.
      China's first manufacturer to independently develop vacuum belt dryer equipment that meets FDA standards.
      It has been put into large-scale production in the first line of many well-known pharmaceutical, food and biological enterprises in China. The operation quality of equipment is stable, and the effect of energy saving and emission reduction is obvious.
      The BVD series vacuum belt dryer was evaluated by the expert group organized by the Science and Technology Department of Zhejiang Province, and passed the design and manufacture of the scientific and technological achievements of Zhejiang Province in 2008 (identification certificate number: Zhejiang Technical Association Identification [2008] No. 186). Technology is at the international advanced level.
      BVD series vacuum belt dryers have been included in the“ Eleventh Five-Year National Science and Technology Support Program, Zhejiang Science and Technology Department Major Science and Technology Public Relations Project and Zhejiang Province” Major Science and Technology Special (Priority Theme) Social Development Project. There are 4 papers and 6 patent applications accepted, including 4 invention patents, 2 special authorizations, and 10 practical patents. They won the third prize of Zhejiang Science and Technology Progress Award and the first set of products in Zhejiang Province.


      Vacuum belt dryer principle

      1. Using digital integrated manufacturing technology, automatic detection and control during dynamic vacuum drying is realized.
      2. Adopting digital axial automatic rectification technology to overcome the problem of deviation of the belt during vacuum drying. The belt conveyor system has an automatic online correction function to ensure continuous operation of the equipment for a long time.
      3. Adopting new superheated water heating technology, it can be adjusted freely online in the temperature range of (30-135℃ ). Due to the liquid closed-loop heating method, no discharge and no loss, the heating temperature stability and equipment Energy consumption and utilization are superior to traditional steam heating technology.
      4. The vacuum degree adopts fully automatic on-line adjustment and control technology, which can optimize the combination of main process parameters such as drying temperature, vacuum degree, feed rate and drying time, so that the working utilization rate of the equipment can reach the most ideal economic benefit.
      5. CIP automatic online cleaning system, diversified cleaning methods, can carry out all-round cleaning without any dead angle, the cleaning effect is thorough and fast, in line with GMP requirements.
      6. The batching system, the feeding and discharging system can carry out a variety of optimized design, configuration and combination according to different material characteristics, which have met the user’s process requirements.
      7. Based on the principle of humanized design: the main body adopts thermal insulation measures to keep the working temperature of the equipment and the operating environment temperature within a suitable range. The inside and outside of the equipment are designed with corresponding detection channels to facilitate daily maintenance and maintenance.


      Technical parameter(extracts)

      Model Layer Evaporation area
      m2
      Water evaporation kg/h Heating temperature range
      °C
      Vacuum range
      pa
      Diameter mm Length mm Height mm Feed moisture content
      %
      Dry powder moisture content
      %
      Number of discharges
      BVD207 2 7 5.6-7.7 30-145 1000-5000 1200 7500 2000 20-80 0.5-5 20-120
      BVD210 2 10 8-11 1200 9000 2000
      BVD320 3 20 16-22 30-145 1000-5000 1600 9000 2500 20-80 0.5-5 20-120
      BVD330 3 30 24-33 1600 12000 2500
      BVD430 4 30 24-33 30-145 1000-5000 1900 9000 3400 20-80 0.5-5 20-120
      BVD435 4 35 28-38 1900 10500 3400
      BVD440 4 40 32-44 1900 12000 3400
      BVD450 4 50 40-55 1900 13500 3400
      BVD455 4 55 44-60 1900 15000 3400
      BVD460 4 60 48-66 1900 16500 3400
      BVD550 5 50 40-55 30-145 1000-5000 2200 10500 3700 20-80 0.5-5 20-120
      BVD560 5 60 48-66 2200 12000 3700
      BVD565 5 65 52-71 2200 13500 3700
      BVD575 5 75 60-82 2200 15000 3700
      BVD585 5 85 68-93 2200 16500 3700
      BVD650 6 50 40-55 30-145 1000-5000 2200 9000 3700 20-80 0.5-5 20-120
      BVD660 6 60 48-66 2200 10500 3700
      BVD670 6 70 56-77 2200 12000 3700
      BVD685 6 85 68-93 2200 13500 3700
      BVD695 6 95 76-100 2200 15000 3700
      BVD6105 6 105 84-115 2200 16500 3700
      BVD6115 6 115 92-126 2200 18000 3700
      BVD7110 7 110 88-121 30-145 1000-5000 2500 15000 4000 20-80 0.5-5 20-120
      BVD7125 7 125 100-137 2500 16500 4000
      BVD7140 7 140 112-154 2500 18000 4000
      BVD8135 8 137 109-150 30-145 1000-5000 2800 15000 4500 20-80 0.5-5 20-120
      BVD8150 8 153 122-168 2800 16500 4500
      BVD8170 8 170 136-187 2800 18000 4500
      BVD9170 9 172 137-190 30-145 1000-5000 3000 16500 4900 20-80 0.5-5 20-120
      BVD9190 9 191 152-210 3000 18000 4900
      BVD10190 10 191 152-210 30-145 1000-5000 3000 16500 4900 20-80 0.5-5 20-120
      BVD10210 10 211 168-231 3000 18000 4900


      Technical parameters(solid)

      Model Exch Heat area Drying temperature Feed moisture content Dry material moisture content Heating medium Water
      JBG3-15 15 m2 20-135° C
      (Adjustable)
      10-80%
      (Mobility)
      0.3-5%
      (Adjustable)
      Superheated water 8-12Kg/h
      JBG5-35 35 m2 18-25Kg/h
      JBG5-50 50 m2 25-35Kg/h
      JBG5-70 70 m2 35-45Kg/h
      JBG5-80 80 m2 40-60Kg/h
      JBG7-120 120 m2 70-90Kg/h
      JBG9-160 160 m2 90-120Kg/h
      JBG11-220 220 m2 120-150Kg/h

      Note: The above evaporation is calculated according to the evaporation water. If the organic solvent is evaporated, the evaporation capacity will be greatly improved. The height of the equipment depends on the installation method. The above equipment is highly available for reference!


      Product advantages

      ● Continuous feeding and continuous discharging under vacuum condition.
      ● Achieve drying, pulverizing and granulating processes under vacuum.
      ● Process automation, continuous and pipeline in the drying process.
      ● Organic solvents can be recycled, no emissions, no pollution.
      ● System operating costs are 1/3 of vacuum oven and spray drying.
      ● Shredded mesh 20-120 mesh (adjustable).
      ● Low temperature and fast drying process will greatly improve product quality.
      ● According to the characteristics of the material, the corresponding equipment can be carried out online for the drying process parameters.
      ● Continuous discharge in 30-60 minutes, product recovery rate of more than 99%.
      ● It can solve the continuous drying of heat sensitive, high sugar and high viscosity materials.
      ● Complete the granulation process under vacuum to avoid secondary moisture absorption, waste, and pollution.
      ● The material has excellent instant solubility after drying, which is unmatched by other traditional drying.
      ● Low labor costs, up to 2 operators.
      ● It will not pollute the environment due to dust and odor.
      ● The entire system is automatically controlled by PLC.
      ● Implement online CIP automatic cleaning.
      ● The entire system and process meet GMP requirements.


      Vacuum belt dryer layout


      .

      60 square meter vacuum belt dryer floor plan reference map
      Note: The above plan is for reference only, and can be adjusted according to different venues.



      120 square meter vacuum belt dryer floor plan reference map

      Note: The above plan is for reference only, and can be adjusted according to different venues.



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