Product Description

The indirect rotary drum dryer is a pollution-free industrial drying equipment that separates the heat source from the materials completely. The high-temperature flue gas or heat medium flows through the jacket outside the drum and the built-in heat exchange tubes, and transfers heat to the materials through the metal wall without direct contact. It is widely used in drying scenarios of heat-sensitive, easily polluted, high-purity materials in industries such as fine chemicals, food additives and new energy materials.

Working Principle

The heat source generated by the independent combustion or heating system is introduced into the sealed jacket outside the drum and the internal heat exchange tubes. The continuously rotating drum drives the built-in lifting plates to turn the materials slowly and evenly, making the materials fully contact with the high-temperature heat-conducting wall. The moisture in the materials is gently evaporated under the indirect heat transfer, and the water vapor is discharged through the independent clean exhaust system. The dried materials are stably output from the discharging end, realizing the pollution-free indirect drying process without mixing flue gas impurities.

Key Features

• ‌Zero cross-contamination‌: The materials are completely isolated from the flue gas, no impurities will be mixed in, ensuring the high purity of the finished materials, which fully meets the strict requirements of high-value materials.
• ‌Gentle and uniform heating‌: The heat transfer temperature is precisely controlled, avoiding local overheating damage to heat-sensitive materials, and the nutrient retention rate is greatly improved.
• ‌Low dust loss‌: The materials run in a fully sealed independent inner cavity, the dust flying amount is extremely low, and the material loss rate is far lower than that of direct-fired dryers.
• ‌Wide adaptability‌: It can be customized with stainless steel anti-corrosion, low-temperature constant temperature and other configurations, and the processing capacity covers 5kg/h to 500t/d, meeting the drying demands of various high-purity special materials.

• Technical Specifications

  Product Specs (m)	Capacity (T/H)	Main Motor Power (kW)	Main Motor Model	Main Gearbox Model	Ratio
  φ1.2×10m	2.5	7.5	Y160M-R3	ZL50-16-1	-
  φ1.5×12m	3.3 - 4.9	10	Y160L-6B3	JZQ500-III-2F	-
  φ1.5×15m	4 - 6	18.5	Y200L-6	JZQ500-III-2F	-
  φ1.8×12m	4 - 6	11	Y200L-6	ZQ50-16II-2	16.46
  φ2.2×12m	7 - 12	18.5	Y160L-6	JZQ650-III	31.5
  φ2.2×14m	7 - 12	18.5	Y160L-6	JZQ750-III	31.5
  φ2.2×16m	12	30	Y225M-6	JZQ750-III	31.5
  φ2.4×14m	12	30	Y250M-6	JZQ750-III	31.5
  φ2.4×18m	10 - 13	37	Y250M-6	ZL85-13-1	27.16
  φ2.4×20m	10 - 14	37	Y250M-6	ZL85-13-1	27.16
  φ3×20m	25	55	Y250M-4	ZL100-16-1	41.52
  φ3×25m	32 - 36	75	YR280M-4	ZL100-16-1	41.52

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