Trinity dehumidifier dryer

Core functions:

Deep dehumidification (core): The ambient air is deeply dehumidified through a honeycomb wheel, generating ultra dry air with a dew point of up to -40 ℃ to -50 ℃.

Efficient drying: Blow ultra-low humidity hot air into the drying material bucket, and use the "low humidity and high temperature" environment to force the water inside the plastic particles to be analyzed and carried away by the air, ultimately reducing the moisture content of the raw materials to below 0.02%.

Sealed conveying: After drying is completed, the raw materials are transported to the extruder or molding machine in a sealed manner through a vacuum suction system to prevent the dried particles from absorbing moisture again (moisture regain) during the conveying process.

Trinity, space saving: Integrating the dehumidification host, drying hopper, and suction system into one, with a compact structure, especially suitable for workshops with high automation and limited space.

2、 Working principle

The three machine integrated dehumidification dryer adopts honeycomb wheel dehumidification technology, which simultaneously completes adsorption and regeneration on a continuously rotating honeycomb wheel, achieving continuous and stable supply of low dew point dry air.

1. Dehumidification and drying circuit:

Adsorption zone: The humid and hot air returned from the drying bin is cooled and blown into the slowly rotating honeycomb wheel. The moisture in the air is adsorbed by the moisture absorbing agent (molecular sieve or silica gel) on the wheel, forming dry air.

Heating and drying zone: Dry air is heated to the required drying temperature for the raw materials (such as PET, which requires 160-170 ℃), blown into a double-layer insulated drying material bucket, and passes through the plastic particle layer from the bottom to the top, taking away the moisture inside the particles.

Cycle completion: The humid and hot air that has absorbed moisture returns to the dehumidification unit and enters the next dehumidification cycle.

2. Regeneration circuit:

Desorption zone: Another stream of regenerated heated air (about 180-250 ℃) is blown into another area of the rotor to desorb (evaporate) the moisture adsorbed on the rotor.

Dehumidification: Wet and hot regenerated air containing a large amount of moisture is discharged outside the machine.

Continuous rotation of the wheel: As the wheel rotates slowly at several revolutions per minute, each area undergoes a continuous "adsorption desorption" cycle to ensure stable dehumidification capacity.

3. Vacuum suction circuit:

Automatic feeding: When the level sensor of the drying material bucket detects a shortage of material, the vacuum suction motor starts to suck the raw materials from the storage bucket into the drying material bucket.

Sealed conveying: After drying is completed, the dried raw materials are directly sent to the extruder hopper through another vacuum conveying system, and the entire process is sealed to prevent moisture regain.

3、 Core structure composition

Dehumidification host (core unit):

Honeycomb Wheel: Core Dehumidification Component. Using ceramic fibers or heat-resistant composite materials as the substrate, the surface is coated with high-efficiency moisture absorbing agent (molecular sieve). It has the characteristics of high dehumidification efficiency, long service life, and continuous regeneration.

Regenerative heater: Provides high-temperature air for wheel desorption.

Cooler: Pre cool the returning humid and hot air to improve dehumidification efficiency.

Drying hopper:

Double layer stainless steel insulation structure: The inner cylinder is made of SUS304 stainless steel, and the interlayer is filled with high-efficiency insulation cotton to prevent heat loss and save energy.

Downward blowing duct design: Ensure that hot air passes evenly through each particle, avoiding dry dead corners.

Return air filter: prevents raw material dust from contaminating the honeycomb wheel.

Vacuum conveying system:

Vacuum hopper: installed above the drying hopper, with built-in magnetic spring switch/photoelectric switch to detect the material level.

Suction fan/motor: generates negative pressure suction.

Cut off valve: Ensure that there is no residual raw material in the conveying pipeline.

4、 Core features and advantages of the product

Ultra low dew point, deep drying: Provides stable dry air with a dew point of -40 ℃ to -50 ℃, completely solving the internal moisture problem of engineering plastics.

Three in one, highly integrated: dehumidification, drying, and conveying integrated design, saving space, pipelines, and labor, making it an ideal choice for automated production lines.

Efficient and energy-saving:

Hot air recycling cycle: Dry air is recycled in a closed system with minimal heat loss.

Double layer insulated hopper: significantly reduces heat loss and can save more than 30% electricity compared to traditional models.

Regenerative energy-saving design: Optimized regeneration air path to reduce regeneration energy consumption.

Prevent secondary moisture absorption: The drying and conveying circuits are independently connected, and dry air is used as the power source during conveying to ensure that the dried particles do not regain moisture during the conveying process.

Uniform drying, no dead corners: The downward blowing air duct design and double-layer insulation ensure uniform temperature inside the material bucket and consistent drying effect.

Convenient maintenance: The filter and other maintenance points can be operated on the front of the machine without the need to move the equipment.