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Bean Cleaning Line
TFXH Series Air Recycling Aspirator
keyword：
seed cleaner
Product Details
The TFXH Series Air Recycling Aspirator is a high-efficiency circulating air separator designed specifically for removing low-density impurities from grains. Engineered for wheat, barley, maize, oilseeds, and other granular materials, this machine effectively separates hulls, dust, chaff, and lightweight particles that compromise product quality and downstream processing efficiency. The TFXH series operates on a closed-loop air circulation principle: material enters the separation zone where controlled airflow lifts light impurities into a large dust settling chamber; heavy, clean grain falls by gravity for collection; and filtered air is recirculated back into the system.
This design eliminates the need for external dust collection systems while maintaining consistent separation performance. Widely deployed in grain depots, flour mills, rice mills, distilleries, oil plants, feed manufacturing facilities, and maize processing plants, the TFXH series can operate as a standalone machine or integrate seamlessly with vibratory separators, rotary cleaners, and wheat scourers to form complete cleaning lines. With capacities ranging from 9 to 32 tons per hour for cleaning applications (or up to 120 tons per hour for pre-cleaning), the TFXH series offers scalable solutions for facilities of all sizes.
Key Features
Closed-Loop Air Recycling System for Dust-Free Operation
The TFXH air recycling aspirator features a fully enclosed air circulation system that eliminates dust emissions to the surrounding environment. Unlike open-air aspirators that discharge contaminated air into the facility, the TFXH series recirculates air within the machine. Dust-laden air from the separation zone passes through a large dust settling chamber where heavier particles drop out by gravity; the partially cleaned air then moves through additional separation stages before being drawn back into the fan for reuse.
This closed-loop design offers multiple advantages: it prevents dust from escaping into the work environment, protecting operator health and improving workplace safety; it eliminates the need for external dust collection ductwork and baghouses; and it maintains consistent airflow parameters regardless of ambient conditions. All connection points are sealed with high-quality sealing strips, ensuring that the system remains tight even under continuous operation. For facilities subject to strict environmental regulations, this dust-free operation simplifies compliance and reduces overhead costs associated with dust control.
Large Dust Settling Chamber for Enhanced Separation Efficiency
Separation efficiency in an aspirator is directly related to the residence time of dust-laden air within the settling zone. The TFXH series incorporates a generously sized dust settling chamber that provides ample space for lightweight particles to separate from the air stream before recirculation. As the air velocity decreases within the chamber, heavier dust particles and hull fragments fall out under gravity, accumulating at the bottom for periodic removal. This design achieves significantly higher separation efficiency compared to aspirators with small or poorly designed settling zones.
The chamber is engineered with smooth internal surfaces that prevent material buildup and facilitate cleaning during maintenance intervals. For applications requiring the highest level of impurity removal—such as flour mills producing premium products—the large settling chamber ensures that recirculated air remains clean, preventing re-entrainment of contaminants into the product stream. This design feature directly contributes to the machine's ability to achieve consistent, high-quality separation across varying throughput rates.
Superior Sealing and Dust-Proof Construction
Containment of dust within the process stream is a critical requirement in modern grain processing facilities. The TFXH series achieves outstanding tightness through meticulous engineering of all potential leak points. The main housing is fabricated with precision-fitted panels that minimize gaps, while all connection points—including inspection doors, duct connections, and drive penetrations—are sealed using high-durability sealing strips that maintain integrity over years of operation.
This construction ensures that dust separated from the grain does not escape into the surrounding environment, protecting both operator health and sensitive downstream equipment from contamination. The sealed design also improves fan efficiency by preventing air leaks that would otherwise reduce airflow and separation performance. For facilities operating in urban areas or subject to strict environmental permitting, the TFXH series' dust-proof operation provides confidence in regulatory compliance while creating a cleaner, safer work environment.
Axial Pressure Door with Automatic Light Impurity Discharge
The TFXH series incorporates an axial pressure door system for the continuous removal of collected light impurities. As dust and hulls accumulate in the settling chamber, the pressure door automatically opens to discharge accumulated material without interrupting airflow or requiring operator intervention. This design eliminates the manual cleaning requirements common in aspirators with fixed collection bins, reducing labor costs and ensuring consistent performance. The axial door mechanism is engineered to maintain a positive seal during normal operation, preventing air bypass that would reduce separation efficiency.
The discharge system is also designed to prevent screw conveyor blockages—a common issue in aspirators where light, fibrous materials can wrap around rotating shafts. By maintaining clear discharge pathways, the TFXH series sustains continuous operation even when processing materials with high light impurity content, such as early-harvest grains or crops with significant chaff.
Optimized Feed Mechanism for Uniform Material Distribution
Consistent separation results depend on uniform material distribution across the separation zone. The TFXH series features a scientifically designed feed mechanism that ensures even flow of grain into the air stream. The feed section is constructed with an enclosed exterior and open interior design that prevents bridging and promotes steady material flow. This configuration achieves two critical objectives: it eliminates mechanical failure at the feed point by preventing foreign objects from jamming the mechanism, and it prevents screw conveyor blockage by maintaining consistent material density at the inlet.
Uniform feed distribution ensures that all grain particles are exposed to the same airflow conditions, maximizing separation efficiency across the entire product stream. For facilities processing variable grain types or throughput rates, this feed design maintains consistent performance without requiring frequent operator adjustment.
Dual-Mode Operation with Versatile Integration Options
The TFXH grain aspirator is engineered for maximum application flexibility, supporting both standalone operation and integrated cleaning lines. When used alone, the machine serves as a dedicated light impurity separator capable of handling 9 to 32 tons per hour for cleaning applications, or up to 120 tons per hour for pre-cleaning when maximum throughput is prioritized over absolute separation efficiency. The dual-mode capability—with separate cleaning and pre-cleaning air volume settings—allows operators to optimize performance based on current objectives.
For comprehensive cleaning systems, the TFXH series integrates seamlessly with vibratory separators, rotary cleaners, and wheat scourers. This modular approach enables facilities to build custom cleaning lines that address all impurity types: coarse and fine materials removed by screens, light impurities removed by aspiration, and surface contaminants addressed by scourers. The machine's standardized interface dimensions simplify installation and reduce engineering requirements when expanding existing lines or constructing new facilities.
Wide Application Range Across Grain Types and Industries
The TFXH air recycling aspirator is designed to handle the diverse material characteristics encountered across grain processing industries. Primary applications include: wheat flour mills for removing chaff and dust before tempering; rice mills for separating hulls from brown rice; corn processing plants for extracting fines and lightweight particles; oilseed facilities for cleaning soybeans, sunflower seeds, and canola; feed manufacturing for pre-cleaning incoming grains; and grain distilleries for preparing raw materials for fermentation.
The machine also performs effectively for malted barley, pulses, and specialty grains. The ability to switch between cleaning and pre-cleaning modes allows the same equipment to serve multiple functions within a facility—performing high-efficiency cleaning for finished product lines and high-throughput pre-cleaning for storage or further processing. This versatility makes the TFXH series a valuable asset in facilities that process multiple grain types or serve diverse markets.
Durable Construction with Optional Corrosion Protection
The TFXH series is built to withstand continuous operation in demanding grain processing environments. Standard construction utilizes carbon steel components with a durable anti-corrosion powder coating, providing excellent resistance to rust and abrasion in typical indoor applications. All internal surfaces that contact product are finished to minimize friction and prevent material buildup. For facilities requiring enhanced corrosion protection—such as those processing acidic grains, operating in high-humidity environments, or requiring frequent wash-down—we offer stainless steel construction options that meet food-grade standards and provide superior longevity.
The fan assembly is engineered for reliability with sealed bearings that resist dust ingress, reducing maintenance requirements and ensuring consistent airflow performance. Drive components are protected by enclosed guards that meet safety standards while simplifying access for routine inspection. This emphasis on durable construction delivers low total cost of ownership and reliable performance over the equipment's service life.
technical parameters
| Model | capacity（t/h） | power（kw） | Air volume（m3/h） | dimension（mm） | ||
| Cleaning | Precleaning | cleaning | precleaning | |||
| TFXH60 | 9 | 40 | 0.75+2.2 | 240 | 480 | 1240×1005×1745 |
| TFXH80 | 12 | 50 | 0.75+2.2 | 300 | 550 | 1440×1005×1745 |
| TFXH100 | 16 | 65 | 0.75+2.2 | 360 | 600 | 1640×1005×1745 |
| TFXH125 | 20 | 83 | 0.75+2.2 | 400 | 650 | 2300×1005×1745 |
| TFXH150 | 24 | 100 | 1.1+2.2×2 | 480 | 720 | 2550×1005×1745 |
| TFXH180 | 28 | 105 | 1.1+3×2 | 520 | 760 | 2850×1005×1745 |
| TFXH200 | 32 | 120 | 1.1+3×2 | 550 | 800 | 2870×1005×1745 |
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