Ammonium Paratungstate (APT) PLG Series Vacuum Continuous Plate Drying machine (Vacuum continuous plate dryer) for pharmaceutical industry

PLG-P continuous Plate Pharmaceutical Conductive style drying machine (continuous Plate dryer ) (continuous Plate drying Equipment )

PLG Series Continuous disc dryer is a high efficiency conducting and continuous drying equipment. Its unique structure and operating principle determine that it has advantages of high heat efficiency, low energy consumption, small occupied area, simple configuration, easy operation and control as well as good operating environment and etc. It can be widely used in drying process in the fields of chemical, pharmaceuticals, agricultural, foodstuff, feed, and other industries.
There are three major types: normal pressure type, closed type, and vacuum type; and four major models: 1200, 1500, 2200 and 3000; and three kind of material grades, A (carbon steel), B (use stainless steel for material contacted area), and C (use stainless steel for material contacted area, steam pipes, main shaft and supports, and linings for cylinder body and top cover).The drying area of the dryer is 4 to 180 m2. We have produced hundreds of models with auxiliary devices which are available to meet requirements of all customers.


Principle

It is an innovation horizontal batch-type vacuum dryer . The moister of wet material will be evaporated by heat transmission. The stirrer with squeegee will remove material on hot surface and move in the container to form cycle flow. The evaporated moisture will be pumped by vacuum pump.

Wet materials are fed continuously to the top drying layer in the dryer. They will be turned and stirred continuously by harrows when the harrow's arm rotates, the material flows through the surface of the drying plate along the exponential helical line. On the small drying plate the material will be moved to its exterior edge and drop down to the exterior edge of the large drying plate underneath, and will then be moved inward and drop down from its central hole to the small drying plate on the next layer. Both small and large drying plates are arranged alternately so as materials can go through the whole dryer continuously. The heating media, which could be saturated steam, hot water or thermal oil will be led into hollow drying plates from one end to other end of the dryer. The dried product will drop from the last layer of the drying plate to the bottom layer of the smell body, and will be moved by harrows to the discharge port. The moisture exhausts from materials and will be removed from the moist discharge port on the top cover, or sucked out by the vacuum pump on the top cover for vacuum-type plate dryer. The dried product discharged from the bottom layer can be packed directly. The drying capability can be raised up if equipped with supplementary devices such as finned heater, condenser for solvent recovery, bag dust filter, return and mix mechanism for dried materials and suction fan etc. solvent in those paste state and heat sensitive materials can be easily recovered, and thermal decomposition and reaction can be also carried out.

80 square meters, now we have hundreds of models of series products and various kinds of auxiliary devices available to meet requirements of various products.

WORKING PRINCIPLE
The wet material is fed continuously to the first drying layer on the top of the dryer. It will be turned and stirred by rakes when the rake arm rotates and drop down to the outer edge of the large drying plate along the exponential helical line. The material will be moved from the small drying plate to its outer edge and drop down to the outer edge of the large drying plate underneath. Both small and large drying plates are arranged alternately so the materials can go through the dryer continuously. The heat medium can be saturated steam, hot water or thermal oil. The heat will be led into hollow drying plates from one end and come out from the other end. The dried materials will drop from the last layer of the drying plate to the bottom of the dryer and then moved by rakes to the discharge outlet. The material moisture will be removed from the exhaust outlet on the top cover. For the vacuum-type plate dryer, the moisture will be sucked out by the vacuum pump on the top cover. The dried materials will be discharged from the bottom layer. The drying capability can be improved if the dryer equipped with supplementary devices such as finned heater, condenser for solvent retrieval, bag dust remover, return and mix mechanism, draft fan, and etc.
TECHNICAL PARAMETERS

FEATURES
(1) Easy to adjust and control, good applicability.
- The drying efficiency can be improved by adjusting the thickness of material layer, rotary speed of main shaft, quantity of harrow arm, shape and size harrow plates.
- Each drying layer can input hot medium or cool medium individually for heating or cooling. The temperature control is accurate and easy to adjust.
- The residence time of materials can be adjusted accurately.
- Single material flowing direction to prevent material return and mixing. The drying process is uniform and the quality stable, no re-mixing is required.
(2) Easy to operate
- Simple operation for turn on and turn off.
- After material feeding is stopped, the remaining material inside of the machine can be easily discharged out by the harrows.
- You can clean and observe inside from the large-scale viewing window.
(3) Low energy consumption
- The material layer is thin and the rotary speed of main shaft is low so it required low power and electricity consumption.
- The material is dried by conducting heat so it has high heating efficiency.
(4) Good operation environment
- Normal pressure type:
The speed of air flow inside of the machine is low and the humidity is high in upper end and low in bottom end so the dust can’t float to the top which keeps no dust in the exhausted air.
- Closed type:
The machine is equipped with solvent recovery device which can recover organic solvent easily from the wet air. The solvent recovery device has a simple structure and high recovery rate. For the flammable, explosive and poisonous materials, the nitrogen can be used as medium for closed circulation and keeps a safe working condition.
- Vacuum type:
The plate dryer is operating under vacuum condition and it is particularly suitable for drying heat sensitive materials.
(5) Easy installation
- The dryer is delivered in a complete piece so it is quite easy to install and fix at site.
- The disc plates are being arranged by layers and it will be installed vertically so it takes a small occupying area from the workshop.

Changzhou Yibu Drying Equipment Co., Ltd. is a leading manufacturer of drying, mixing, and granulating equipment in China, a specially-designated enterprise of China Association for Pharmaceutical Equipment (CAPE) and China General Machinery Industry Association (CGMA) Drying Equipment Branch. The factory covers an area of over 50,000 m2, has fixed assets of CNY 35 million, with more than 180 sets of special processing equipment and strong technical force. The company owns the provincial famous trademark of "YIBU", and has passed the ISO9001 & ISO14001 certifications.
The founder, Mr Zha Guocai has devoted more than 30 years in R&D, production and business of drying equipment. He holds the post of Deputy Director-General of China General Machinery Industry Association (CGMA) Drying Equipment Branch for a long time. The company pays great attention to science and technology innovation, has collaborated with Medicine Design Institutes in Shanghai, Wuhan, Chongqing and other places, Shenyang Chemical Research Institute, Qinghua University, Shanghai Jiaotong University, Dalian University of Technology, etc. The company launched 3-5 new products to the market every year. In 1998, YIBU established "China Research Center of Drying and Granulating" with the approval of relevant state department, and cooperated with pharmaceutical, chemical and food industries to research and develop new technologies related to drying, granulating and mixing, etc. The factory also has a variety of test prototypes in the laboratory for customers' trials.
The company sold equipment to USA, Mexico, Columbia, Guatemala, Brazil, Peru, Australia, New Zealand, Ghana, Russia, Cyprus, Greece, Iran, Indonesia, Philippines, Korea, Japan, Taiwan, Hong Kong and other countries.