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DPL Fluid Bed Granulation, Drying, and Coating, Particle coating, Dust - free granules, Powder layering, Excellent solubility - details see: https://www.machineto.com/dpl-fluid-bed-granulation-drying-and-coating-10306235

DPL Fluid Bed Granulation, Drying, and Coating:

Purpose designed for cGMP processing of fine powders, pellets, granules, crystals and tablets.

Fluid bed drying

Gentle, rapid drying of powders and particles

The product to be dried is fluidized by passing hot air through it. The process achieves fast heat transfer making it very efficient, yet gentle on the product.

Capacity: from 50g to several kg /batch or several kghr

Batch fluid bed processing has been used in the pharmaceutical industry for the past 30 years. Figure 1 shows the components of a typical fluid bed processor. The technology was originally developed specifically for rapid drying. Over the years, fluid bed processing has come into routine use for other applications such as granulation, agglomeration, air suspension coating, rotary pelletization, and powder and solution layering, but the principle of the fluid bed processor has not changed.

FL-B fluid bed granulator is a good choice for making particles, mixing powder, and drying processes in pharmaceutical, food, feed, and chemical industry. This equipment complies with the state standard GB12254-90. The particles are used as instant drink granules and for filling capsules or compressing tablets

2 bar or 10 bar

Fluid bed processing involves fine dust and dry process air, which can cause an explosion triggered by a static charge. Such an explosion creates a momentary overpressure in the processor. Until late in the 1970s, the fluid bed processorwas capable of withstanding only 2 bar overpressure. A 2-bar unit required a pressure-relief duct to vent the over-pressure in case of an explosion. The processor had to protrude through the roof or be installed near the outside wall of the facility to minimize the length of the pressure-relief duct. The processor required doors equipped with gaskets, posing a cleaning problem. It was thought that a machine capable of withstanding higher pressure was very expensive to make. However, 10-bar, pilot-size units were introduced by some manufacturers in the late 1970s.

A 10-bar unit does not require a pressure-relief duct and thus can be installed anywhere within the building. This also meant that the pressure-relief duct, doors, door gaskets, and cleaning problems due to doors and gaskets were eliminated. In the 1990s one can obtain a production unit with a 10-bar shock resistance.

Air-handling unit

For a fluid bed processor used in manufacturing, process air is generally drawn from the outside of the building. The conditioning of this air to a constant humidity and dew point is now considered essential. The drying capacity of the air depends on its temperature, humidity, and volume. Because of the globalization of the pharmaceutical industry, fluid bed processes must be able to be transferred from one location to another anywhere in the world. To ensure the consistency of the process conditions and thus the product produced, it is important that the quality of the process air be consistent and re-producible. The recent trend is to have an air-handling unit that can produce air of consistent quality with the desired dew point throughout the year.

wash-in-place design

Main technic data sheet Extract Machine for Granulating /Coating

FL-B Main parameter (as reference)
Specification			Model
Specification		Denomination	15	30	60	120	200	300	500
Material Container	Volume	L	45	100	220	420	670	1000	1500
	Dimension	mm	550	700	1000	1200	1400	16000	1800
Capacity		Kg/batch	15	30	60	120	200	300	500
Steam	Pressure	Mpa	0.4--0.6
	Steam flow	Kg/h	20	60	120	140	180	310	400
Compression air	Pressure	Mpa	0.4-0.6
	Steam flow	m3/min	0.6	0.6	0.9	0.9	1.1	1.1	1.5
Blower		Kw	3	5.5	11	18.5	22	30	45
Heater		Kw	12	21	30	48	87	163	185
Noise		db	less than 75 db
Tower Dimension (mm)	A		1900	2100	2250	2650	2800	3500	4000
	B		1350	1800	2400	3200	3800	4200	4200
	C		380	420	480	500	520	600	680
	D		700	1100	1320	1420	1640	2000	2260
	E		700	860	1000	1200	1400	1600	1800