Fgbx Sealed -Circuit Circulation Fluidizing Dryer

Product Description

Product Description

Description
Usually, for the synthetic drugs, they are crystallized in organic solvents. Meanwhile, they contain a considerable number of organic solvents. If these solvents are directly discharged into the atmosphere, they will not only pollute the environment heavily but also cause energy waste. So, recovering and recycling all kinds of the solvents from the raw material and drugs when drying the raw material and drugs of the medicine meets the requirements of environmental protection as well as the enterprise development. In the point, to dry the raw material medicine and partial medicine, choosing the closed-circuit circulation drying system is more suitable. The system helps to realize a more effective unity of economic, better environmental and social benefits.
Advantages compared with the traditional drying equipments

1. It can effectively recover organic solvents, reduce production costs, and avoid the environmental pollution caused by the solvents.
2. It can make the material dry with lower water content (the moisture content can be reduced to 0.5%) under a low temperature of drying medium (generally nitrogen).
3. During the drying process of the closed-circuit circulation fluid bed dryer, the wet and hot air containing the solvent enters the condenser and let the solvent in the air become liquid state. In this way, it not only recovers the solvent, but also condense the dehumidify and dry the air. For the recovered solvent, it can be reused as to save the cost. Meanwhile, the exhausted air will not cause the pollution to the environment. After the condensing and dehumidifying, the absolute humidity in the air is low, the drying capability of the dryer becomes stronger. It is more suitable for drying the material moisture-absorbing for closed- circuit circulation fluid bed dryer.During the drying process of the closed-circuit circulation fluid bed dryer, the wet and hot air containing the solvent enters the condenser and let the solvent in the air become liquid state. In this way, it not only recovers the solvent, but also condense the dehumidify and dry the air. For the recovered solvent, it can be reused as to save the cost. Meanwhile, the exhausted air will not cause the pollution to the environment. After the condensing and dehumidifying, the absolute humidity in the air is low, the drying capability of the dryer becomes stronger. It is more suitable for drying the material moisture-absorbing for closed-circuit circulation fluid bed dryer.
4. The sealed -circuit circulation fluid bed dryer is with fully -closed structure. the circulation air inside the machine is nitrogen. During drying anaerobic materials or materials containing flammable and explosive organic solvents, because of the low oxygen in the circulating air, the material in the dryer cannot be burned or oxidized. In this way, the system effectively avoids the occurrence of fire or explosion accidents in the producing process, with the higher-level safety class.
5. The sealed-circuit circulation fluidizing dryer requires low air pressure inside when it is working with only a slight positive pressure needed. Thus, the equipment is equipped with a relatively low power of the fan. Under the positive pressure condition, the hot air is blown up from the bottom of the material mesh board. The air penetration capability is strong. Although the material fluidizing height is not high, the hot air and material contact with each other more fully, and the drying speed is faster. At the same time, the energy consumption is reduced.
6. The main machine of the closed-circuit circulation fluid bed dryer adopts specially-made pulse back-blown dust removal system. The dust removal effect is good. The filter element is made of special material, with the good surface finish quality, the large filtering area, the high filter precision, and the low resistance. In this case, the dust is not easy to adhere to the filter cylinder, but easy to disassemble and clean.

Principle

1.Nitrogen filled and oxygen dump

When closing the corresponding pipeline control valve, the system is in a completely closed state; when open the exhaust air pump, the oxygen in the system will be pumped out as to let the system reach a micro-negative pressure state. When the system pressure gauge shows a certain value, to close the corresponding exhaust valve as well as the exhaust air pump. At this time, the nitrogen control valve is opened and nitrogen is filled into the system. When the oxygen residue in the system is less than the required value detected by the on-line oxygen detection device, the system is in a micro-positive pressure state. At this moment, to close the the nitrogen control valve and enter into the next process.

2.Drying Period

Open the circulation fan and make the material fluidize well; open the radiator to heat up the system to the required temperature. Through the nitrogen transferring, the heat brought out the moisture and the organic solvents in the material as well as a small amount of micro-powder. In the system, the fine powder is collected by a dust collector (filtered to 2-5μm). After going through the condenser, the solvent and organic solvent inside the air are condensed into the liquid, which is collected by a storage tank. The nitrogen becomes dry after dehumidified and condensed, and circulated inside the system by the fan.

3.Nitrogen protection system

The nitrogen protection is mainly controlled by on-line oxygen detector. When the oxygen content exceeds the required value, the nitrogen filling device is automatically opened and fill the nitrogen into the system. When the oxygen content in the system meets the requirements, the nitrogen filling device is automatically closed.

4.Overpressure protection system

When the pressure in the system exceeds the set value, the pressure detection device acts and automatically empties and relieves the pressure. When the system pressure meets the requirements, close the automatic exhaust valve, and the system is running normally.

 

Product Parameters

Spec Item	FGBX-5	FGBX-10	FGBX-30	FGBX-60	FGBX- 120	FGBX- 200	FGBX- 300	FGBX- 500
Total volume(L)	11	38	120	340	450	670	1000	1700
Diameter(mm)	Ø400	Ø600	Ø800	Ø1100	Ø1300	Ø1500	Ø1600	Ø1800
Capacity(kg/batch)	3~5	5~10	18~30	40~60	80~120	150~200	250~300	350~500
Air fan power(kW)	4.0	5.5	11	15	18.5	30	45	55
Steam pressure(MPa)	0.2~0.4
Steam consumtion(kg/h)	15	35	70	120	190	220	330	445
Compressed air consumption(m3/min)	0.3	0.4	0.5	0.6	0.8	1.0	1.0	1.5
Compressed air pressure(MPa)	0.4~0.6
Nitrogen pressure(MPa)	0.4~0.6
Nitrogen consumption(m3/min)	0.15	0.20	0.25	0.30	0.35	0.40	0.50	0.70
Coolant pressure(MPa)	0.2~0.4
Coolant consumption(t/h)	3.5	5.5	7.5	12.5	14.5	20	28	40
Total volume(L)	FGBX-5	FGBX-10	FGBX-30	FGBX-60	FGBX- 120	FGBX- 200	FGBX- 300	FGBX- 500

 

Company Profile

Changzhou Yibu Drying Equipment Co., Ltd is a leading manufacture of drying, mixing, granulating equipemnt in the main land of China, a specially- designated enterprise of China Association of Pharmaceutical Equipment and China General Chemical Equipment Corporation, covers more than 50, 000sq. M, holds RMB 38 million of fixed assets and has more 180 sets of special processing equipment and powerful technical force, own the provincial famous trademark "YIBU". It can produce more 1, 500 stes of different. At present, there are 28 kinds and over 160 of specifications and varieties. The credit level is AAA for the passing days. ISO9001 & ISO1400 are approved.
The founder, Mr Zha Guocai devotes research, manufacture, production and business of drying equipment for over thirty years, holds the post of Deputy Director-General of China Drying Equipment Association for a long time.
The company pays much attention to science and technology renovation. First or later, it has cooperated with the institutes that are Shanghai, Wuhan, Chongqing and so on, and cooperated with Shenyang Chenmical Institute, Ministry of Chemical Industry, Qinghua University, Shanghai transportation University, Dalian Science and Technology University. Therefore the company can put 3-5 new varieties into the market every year. In 1998, through approval of state relevant departments, the company set up China Research Center of Drying and Granulating, that can research new process and develop new technology and provide new products for pharmaceutical, chemical and foodstuff industries. We have many testing machine in our lab for to make trials for clients.

 

We've sold equipment to USA, Mexico, Columbia, Guatemala, Brazil, Peru, Australia, New Zealand, Ghana, Russia, Cyprus, Greece, Iran, Indonesia, Philippines, Korea, Japan, Taiwan, Hongkong and so on totally nearly 50 countries and districts around the planet.

 

 

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