EAC Electricity Heating SUS316 Air Stream Dryer

XSG Series Spin Flash dryer

Technical Parameters

Note:
1. The evaporation of water is the water that evaporates every hour when the inlet air temperature is 180 °C and the outlet air temperature is 80 °C.
2. In addition to the above models, special design and customization can be made for users.
3. The above-installed capacity is standard, and the materials have different powers.

Product Description

The flash dryer is widely used in the dispersion and drying of granular, powdery, paste-like and filter cake-like false agglomerates in the chemical, pharmaceutical, building materials, food, feed, and other industries. The flash dryer has the advantages of the small occupied areas, low energy consumption, high thermal efficiency, and continuous mass production. The flash dryer body is provided with a rotary cutting device, and the dry material is subjected to shearing, rotating, collision, friction, etc., so that the material is pulverized and refined, and is highly dispersed, thereby achieving the effect of efficiently and rapidly evaporating water. The dryer is equipped with an air filter to achieve the cleanliness of the hot air and to provide production conditions for the hygiene requirements of the food industry. The machine sets the cyclone separation and collecting materials. In addition, the bag dust removal receipt is added to increase the material recovery rate. It can improve the economic efficiency of enterprises. The dryer can be customized according to user needs.
Flash dryer is also the main equipment for drying bean dregs to make cat litter. Making litter from bean waste can be used to mask the smell of cats' urine and feces. Okara cat litter is chosen by more cat litter manufacturers for its excellent quality and moderate price. However, most of the bean dregs in the market are wet bean dregs, with a water content of more than 60%, which cannot meet the raw material requirements for producing bean dregs cat litter. This forces enterprises to further process the bean dregs, further improve the quality of the bean dregs, and dry the wet bean dregs to dry bean dregs with a moisture content of 9-13%, which meets the raw material requirements of the bean dregs cat litter. The surface of cat litter made from bean dregs after being dried by a flash dryer is mostly dense with dense pores and very light. It has a good water absorption and deodorization effect, is non-toxic and non-polluting, it will not flow into the sewer and will be blocked, and it is very convenient to transport.

Working Principle
The flash dryer consists of a dry main engine, feeder, heat source device (hot air furnace or steam), air filter, air blower, cyclone separator, bag filter, and induced draft fan. The hot air tangentially enters the bottom of the dryer and is driven by the agitator to form a powerful rotating wind field. The paste material enters the dryer by the screw feeder. Under the strong action of the high-speed rotating stirring paddle, the material is dispersed under the action of impact, friction and shearing force, the block material is rapidly pulverized, and it is fully contacted with hot air and heated, and dry. The dehydrated dry material rises with the hot gas flow, and the classification ring intercepts the large particles. The small particles are discharged from the center of the ring to the outside of the dryer and are recovered by the cyclone separator and the dust collector. The dry material is not dried or the bulk material is subjected to centrifugal force, fell to the bottom and was crushed and dried.

Flow chart


Feeding system
For the feeding system ,normally , we choose double screw feeder .Double Shaft with Specially Designed Blades for lumps break as to ensure the raw material into the drying chamber smoothly . And drive Through motor & Gear Box


Drying chamber
For the drying chamber , it consists of the bottom stirring section , middle section with jacket and top section.Some times , the explosion vent on the top duct on request .


Dust collecting system
For the dust collecting system, it has several ways .
The Finished product collected is using cyclones, and/or bag filters. Typically, cyclones are followed by scrubbers or bag filters for final cleaning of the exhaust gases to meet current emission requirements.

Features of plant

1. The collection rate of finished product is very high.
To adopt cyclone separator with high efficiency and low resistance (the collection rate can be above 98%), together with air chamber type of pulse cloth bag deduster(the collection rate can be above 98%)
2. To control final water content and fine of finished product efficiently
To control final water content and fine of finished product through adjusting screener and inlet air speed.
3. No materials stick on the wall
Continuous high-speed air flow washes out the materials stayed on the wall strongly in order to clear the phenomenon that materials stay on the wall
4. This machine is good at processing thermal sensitive materials
The bottom of main machine belongs to high temperature area. The air speed in this area is very high, and the material can hardly contact heat surface directly, so there is no worry about burning and color changing.
5. XIANDAO Spin Flash dryers are designed for continuous drying of cohesive and non-cohesive pastes and filter cakes, as well as high-viscosity liquids. The main components in a XIANDAO Spin Flash plant are a feed system, the patented drying chamber and a bag filter. Widely acclaimed by customers in a variety of industries all over the world, this patented process provides a faster and more energy-efficient alternative to spray drying. With more than 150 XIANDAO Spin Flash dryer installations world-wide XIANDAO DRYING combines experience and cutting-edge technology into added-value solutions for our customers. Elevated drying temperatures can be used with many products since the flashing off of surface moisture instantly cools the drying gas without appreciably increasing the product temperature which may damage its quality.
6. Wet material is dispersed into a stream of heated air (or gas) which conveys it through a drying duct. Using the heat from the airstream, the material dries as it is conveyed. Product is separated using cyclones, and/or bag filters. Typically, cyclones are followed by scrubbers or bag filters for final cleaning of the exhaust gases to meet current emission requirements.
7. The feed system consists of a feed vat where a discontinuous flow of product is buffered and fragmented by an agitator prior to continuous drying. A variable speed feed screw (or pump in the case of fluid feed) forwards the product to the drying chamber.
8. The rotor at the conical base of the drying chamber fluidizes product particles in a drying-efficient hot air flow pattern in which any wet lumps are rapidly disintegrated. Hot air is supplied by a temperature-controlled air heater and speed-controlled fan, entering the drying chamber at a tangent in order to establish a turbulent, whirling air flow.
9. Airborne, fine particles pass through a classifier at the top of the drying chamber, while larger particles remain in the air flow for further drying and powdering.
10. The drying chamber is rigidly designed to withstand pressure shock in the event of explosive combustion of flammable particles. All bearings are effectively protected against dust and heat.

Processing Features
1. The organic combination of swirling, fluidizing, spraying and pulverizing and grading techniques.
2. Compact equipment, small size, high production efficiency, continuous production, and realize "small equipment, large production".
3. Large drying strength, low energy consumption, and high thermal efficiency.
4. The material has short residence time and well-finished product quality, which can be used for drying heat-sensitive materials. Negative pressure or micro-negative
5. Pressure operation, good air-tightness, high efficiency and elimination of environmental pollution.

Adaptable material
Foodstuffs: soy protein, gelatinized starch, wine trough, wheat sugar, wheat starch, etc.
Organics: Atrazine (pesticide pesticides), lauric acid, benzoic acid, benzoic acid, bactericidal dan, sodium oxalate, cellulose acetate, organic pigments, and the like.
Dyes: antimony, black iron oxide, indigo pigment, butyric acid, titanium hydroxide, zinc sulfide, various the nitrogen dye intermediate.
Inorganic materials: borax, calcium carbonate, hydroxide, copper sulfate, iron oxide, barium carbonate, antimony trioxide, various metal hydroxides, various heavy metal salts, synthetic cryolite, and the like.
 

Schematic of structure