en
Categories
Categories
Pigment spin flash dryer: high efficiency grinding and drying integrated equipment
Pigment rotary flash dryer integrates drying, crushing and screening, and is specially used for dyes, food and inorganic chemical materials. Using swirling shear technology, the production intensity is high, the fineness is adjustable, and the performance of the whole machine reaches the international advanced level. Understand the working principles and advantages of the equipment.
2026-05-07
0
1. Product overview: New generation flash drying technologyPigment rotary flash dryer is a new type of drying equipment successfully developed based on traditional flash dryers. the set of devicesDrying, crushing and sievingThe three functions are combined in one, with advanced design concepts and compact structure. It is especially suitable for drying heat-sensitive or high-viscosity materials such as paste paste and filter cake. It has significant advantages such as large production capacity, stable product quality, high thermal efficiency, energy conservation and environmental protection.2. Working principle: cyclonic shearing and instant drying
This equipment uses high-speed hot air flow to achieve efficient drying of materials, and its core workflow is as follows:
-
Strong dispersion: Clean hot air enters the drying chamber tangentially from the bottom of the dryer, forming a powerful rotating wind field. The agitator breaks up the agglomerated materials. After the wet materials fall into the drying room, they are immediately subjected to strong airflow shearing, blowing and rotating effects.
-
Heat and mass transfer: Materials are rapidly granulated under the multiple actions of centrifugal force, shear force, collision force and friction force. Due to the extremely high relative velocity between solid particles and gas, the heat and mass transfer coefficient between the gas-solid two phases is significantly increased.
-
Fractional drying: The dried particles rise with the rotating air flow and pass through the drying chamberhierarchical rings（Classification Ring）。Particles that are larger or do not meet the drying requirements are intercepted and fall back to continue drying, while qualified fine powder enters the cyclone separator or bag filter with the airflow, thereby achieving precise control of the particle size and moisture of the product.
3. Core advantages and technical highlights (Key Advantages)
3.1 Anti-deterioration cooling deviceAiming at the problem of material deterioration caused by the high temperature area at the bottom of the dryer, the bottom of the equipment is designed withSpecial cooling device。This design effectively avoids overheating decomposition or coking of materials in high temperature areas, and is especially suitable for temperature-sensitive pigments and dyes.3.2 Sealing system for extended lifeEquipment is equipped with dedicatedPneumatic sealing deviceand independentbearing cooling system。This not only ensures the stability of the main engine operation, but also effectively extends the service life of the transmission components and reduces the maintenance frequency and cost of the equipment.3.3 Flexible and adjustable product specificationsBy adjusting the drying chamberhierarchical ringsposition andspinning diskFrom a perspective, operators can flexibly adjust the final fineness of the material and the moisture content of the finished product according to needs to adapt to diversified production process requirements.3.4 Environmental protection and automationThe whole system has high integration, short process flow, eliminates dust pollution, and clean working environment, which meets the environmental protection standards of modern chemical production.4. Extensive Application Materials
This rotary flash dryer has been successfully used in powder drying operations in many industries. Typical materials include but are not limited to:
application field
Specific material examples
dyes and pigments
Anthraquinone, black iron oxide, indigo pigment, titanium oxide (titanium dioxide), zinc sulfide, azo dye intermediates
food industry
Soy protein, gelated starch, wheat starch, alcoholic grains (DDGS)
ceramic raw materials
Kaolin, silica, clay
inorganic chemical
Boric acid, calcium carbonate, calcium hydroxide, copper sulfate, barium carbonate, antimony oxide, heavy metal salts, synthetic cryolite
5. summary
Due to its unique structural design and efficient drying mechanism, pigment rotary flash dryers have become an ideal choice for processing viscous and pasty materials. Its "one-step" drying and crushing process not only simplifies the production line process, but also greatly improves production efficiency.
Strong dispersion: Clean hot air enters the drying chamber tangentially from the bottom of the dryer, forming a powerful rotating wind field. The agitator breaks up the agglomerated materials. After the wet materials fall into the drying room, they are immediately subjected to strong airflow shearing, blowing and rotating effects.
Heat and mass transfer: Materials are rapidly granulated under the multiple actions of centrifugal force, shear force, collision force and friction force. Due to the extremely high relative velocity between solid particles and gas, the heat and mass transfer coefficient between the gas-solid two phases is significantly increased.
Fractional drying: The dried particles rise with the rotating air flow and pass through the drying chamberhierarchical rings（Classification Ring）。Particles that are larger or do not meet the drying requirements are intercepted and fall back to continue drying, while qualified fine powder enters the cyclone separator or bag filter with the airflow, thereby achieving precise control of the particle size and moisture of the product.
|
application field
|
Specific material examples
|
|---|---|
|
dyes and pigments
|
Anthraquinone, black iron oxide, indigo pigment, titanium oxide (titanium dioxide), zinc sulfide, azo dye intermediates
|
|
food industry
|
Soy protein, gelated starch, wheat starch, alcoholic grains (DDGS)
|
|
ceramic raw materials
|
Kaolin, silica, clay
|
|
inorganic chemical
|
Boric acid, calcium carbonate, calcium hydroxide, copper sulfate, barium carbonate, antimony oxide, heavy metal salts, synthetic cryolite
|