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Vibrating Fluid Bed Dryer

    The vibrating fluid bed dryer can make moist powder layer is vibrated on an air distributor plate. The effect of the vibration combined with the upward and forward directed flow of drying air through the perforated plate create ideal processing conditions and powder transport.
Uniform product moisture content is achieved by passing treated gas through a perforated plate assuring intimate mixing of the gas and process material. As the treated gas passes through the wet material the moisture is removed and carried away to be treated in a cyclone and baghouse. The dried final product is conveyed to the dryer discharge.

  • ZLG
  • 8419399090
  • SUS304/SUS316L
  • Food/Pharmaceutical/Chemical

Vibrating Fluid Bed Dryer Introduction

The Hywell Machinery vibrating fluid bed dryer is a new technology developed on the basis of static fluidized bed. Mechanical vibration is added on the fluidized bed. The material has been feed into the machine, under the dual function of the vibration and air flow, the material move along the fluidized bed as throwing forward continuously. Hot air upward through the fluidized bed and wet materials from the heat after the exchange. And after dried products will be discharged.

shaking fluid bed dryer


fluid bed dryer


vibration fluid bed dryer


Shaking Fluid Bed Dryer Description

The shaking fluid bed dryer include the heating device, main machine, air filtration system for products, air system.

The main air heating system of vibrating fluid bed dryer supplies the drying chamber with the designed amount of air. The air rate is calculated with Hywell machinery’s process calculation program. The program is based on the actual ambient conditions at the physical place where the dryer will be installed.

The main air system of vibratory fluid bed dryer consists of air filters, pre-heating systems, air heater, supply fan and from time to time dehumidification system. The main air system is constructed according to the actual requirements of the product and the ambient conditions.

Fines and air filtration system of fluid bed dryer process, The fines coming out of the drying chamber and the external fluid bed together with the exhaust air will be separated from the exhaust air before letting it into the atmosphere.

Cyclones and bag filters are the most common ways of filtrating the fines from the air. Cyclones seldom stand alone. This is because the emission will often violate the environmental requirements in terms of the permitted mg of powder per m3/air. Therefore, a bag filter is necessary(option).

A bag filter can be a standalone solution as this technology is able to remove the required powder fines before outlet to the atmosphere. The fines are collected in a fines return system, thereby the powder loss is reduced to a minimum. The fines can be re-entered to the top of the drying chamber, to achieve agglomeration of the powder or they can be sent to the internal or external fluid bed. Again, the required powder specifications will decide the design of the fines system.

Powder sifter (option): The final step of the drying system is the powder sifter. The powder sifter will separate the large powder particles from the powder, size is determined for the separation. The off size is bagged off and the powder can be either directly packed into big bags or conveyed to a silo system for other packing systems.

Fluid Bed Dryers Specifications


Bed area (M⊃2;)

Inlet air temperature (ºC)

Exhaust air temperature


Water evaporated capacity (kg/h)


motor power (kw)

















































1.Hywell machinery reserves the right to the design without notice

2.All specifications are as accurate as is reasonably possible, but they   are not binding.

Drying bed plate model of vibration bed dryer

    The fluid bed drying machine board is the main place where the material has been in contact with the material during the whole drying process and the water evaporates. so the bed board of the fluid drying equipment is very important. According to the characteristics of different materials, the fluidized bed dryer has a variety of drying bed plates to choose. Hywell machinery has the straight perforated plate, tongue type perforated plate, mesh plate or mixed perforated plate. For materials with small specific gravity, tongue-shaped hole bed plates are generally used. For powders or particles with large specific gravity and small particles, mesh plate are generally used (the minimum hole can reach 0.2 mm), such as salt, sodium sulfate, etc. Welcome to consult Hywell machinery. our engineers will give you free technical consultation.

bed plate of fluid bed dryer

Tongue type perforated plate

drill hole bed

Straight perforated plate

bed plate

Mesh plate

Heating method of vibration fluid bed dryer

The vibration fluidized bed dryer has a large output and needs a large amount of air and heat energy. The heating methods usually used are steam, gas or oil hot blast stove, coal fired furnace, and electric heater. Of course, electric heating is the last choice, because big heat engery needs big electric heater power. The specific heating method is determined according to the material characteristics and the actual conditions of use. about this detail, please contact Hywell machinery company and we will give free suggestion.

heater of dryer

 Burning gas /oil heater

coal furnace

Burning coal heater

steam radiator

Steam radiator

electrical heater of dryer

Electrical heater

Fluidized Bed Dryer Construction Materials

Hywell Machinery are able to offer our ZLG series fluidized bed dryer with contact part to be built in SS304, SS316L, Titanium, Duplex stainless steel, etc. Electrical parts of control system of the drying machine can be adapted to the customer’s needs.

How do the Vibratory Fluid Bed Dryer Works

A continuous fluid bed system is a machine in which a continuous flow of “wet” powder, granular or flakes material is conveyed over a perforated bed.  Hot drying air is blown through the holes of a perforated plate.  The wet solids are lifted from the bottom and causes the solids to behave as a fluid. The air velocity is adjusted to keep the moving layer of material fluidized.

Fluidized Bed Drying Machine Advantages

Hywell machinery ZLG series shaking fluidized bed drier had the following advantages over conventional solutions.

  1. Low energy consumption compared to other type of dryers

  2. Accurate control of the residence time, product is dried uniformly

  3. Low operating costs

  4. Cooling section integrated in dryer

  5. Process flexibility

  6. Reliable system, less downtime

  7. The feeding system for the vibrating fluid bed dryer machine can be by manual or screw feeder or conveyor belt.

  8. Smooth running, reliable performance, easy operation.

  9. Highly polished inner and outer surfaces of the machine, no dead comer, easy to clear, no cross contamination.

  10.  Height of fluidizing chamber and dust collection is by requirement.

  11. The vibration is created by motor. It is stable in operation and convenient in maintenance, low noise with long life span.

  12. Fluid bed drying machine is good in regulation and wide in suitability. The thickness of raw material, moving speed and the amplitude can be adjusted.

  13. Fluid bed dryer process makes minimum damage to the surface of raw material. The equipment can be used for drying easy broken raw materials. The dryer also suitable for drying irregular shape raw material.

  14. The fluid bed dryer system adopt closed operation, protect raw material from cross-contamination, it is in continuous production

Fluid Bed Dryer Options

1.  Construction Material:

We are able to offer our vibratory fluid bed dryer system with contact part to be built in Carbon steel, SS304, SS316/316L, Titanium, Duplex stainless steel, etc. Standard of internal and external finish can be adopted to the customer’s needs.

2.  Feeding & Discharge Options:

vibratory fluid bed drying system can have a variety of feeding & discharging methods that match the demands of the filling & production line.

3.  Custom Engineered Dimensions:

Dimensions of our continuous fluid bed dryers can be defined according to customer’s requirements.

4.  Vibratory fluid bed drier Sizes:

The vibratory fluid bed dryer total treat capacity with bigger size as per request &. more.

5. Vibration pad

Regarding the vibration pad, we can choose two options, one is the ordinary rubber vibration pad, and the other is the air bag. the air bag pad that is use to dry the easy broken materials. such as breadcrumb drying process.


Air bag pad

air bag

Air bag pad


Rubber pad


Rubber pad

Fluidized Bed Drier Application:

Fluidized bed Drier is widely used in pharmaceutical, chemical, foodstuff and electronic industries.

1.Petrochemical industry

Inorganic:  ammonium hydrogen fluoride, potassium permanganate, sodium thiocyanate, cobalt sulfate, nickel sulfate, zinc sulfate heptahydrate, ammonium chloride, calcium, strontium chloride, sodium chlorate etc

Organics:  p-nitrobenzoic acid, fumaric acid, pentaerythritol, resorcinol, catechol, calcium hypochlorite, sodium silicate, GDL, sodium gluconate, thiourea, sorbitol, dicyandiamide.

Pesticides: Imidacloprid granules, granules glyphosate

Polymer: High-absorbent resin, a polystyrene resin, sodium polyacrylate

Chemical additives: methyl cellulose, polyacrylamide, hydroxyethyl cellulose

2. Food and beverage industry

trehalose, caramel, tartaric acid, coffee, bread crumbs, milk powder, citric acid, potassium citrate, sodium citrate , maltitol, xylose, xylitol.

bread crumb dryer

Breadcrumb dryer

salt dryer

Salt dryer

Vibrating Fluid Bed Dryer Video


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