Also known as a rotary discharge valve or segmented wheel feeder, the rotary rotary feeder is a specialized airlock discharge accessory for baghouse dust collectors hoppers.
It is primarily installed at the bottom outlet of the dust collector hopper.
Utilizing the principle of impeller rotation and segmented volumetric feeding, it evenly and quantitatively discharges the dust particles collected inside the hopper, while effectively preventing external air from entering the hopper.

This achieves both airlock sealing and continuous ash discharge. It effectively solves problems such as air leakage, ash bridging, and dust outflow from the hopper, ensuring stable negative pressure in the dust collection system. It is a core accessory for intermittent, uniform, and dust-free unloading in small and medium-sized dust collection equipment.

It possesses excellent airlock sealing and quantitative unloading capabilities. During rotation, it continuously blocks the exchange of internal and external airflow, preventing cold air backflow and loss of system negative pressure. This stabilizes the dust collector's airflow and filtration efficiency, eliminating the problem of reduced dust collection effect due to air leakage.
The equipment casing is integrally formed from thickened cast iron or carbon steel, featuring a robust and compact structure that is pressure-resistant and wear-resistant. The impeller operates smoothly, resisting dust erosion and deformation, making it suitable for long-term continuous and intermittent industrial operations.
The impeller employs precision machining and a high-precision sealing structure, ensuring uniform gaps, excellent airlock performance, and uniform and stable unloading without material jamming or dust accumulation. This effectively prevents dust agglomeration, bridging, and clogging.
Equipped with a dedicated geared drive motor, it offers sufficient transmission torque, low operating noise, and uniform and stable speed. Supporting frequency conversion speed regulation, the unloading speed can be adjusted according to dust production, making it suitable for automated dust collection unattended operations.
The overall structure is simple, with no complex or easily damaged parts, resulting in a low failure rate. Disassembly and maintenance are convenient, requiring minimal daily maintenance and resulting in low long-term operating costs. It is suitable for various harsh dust environments.
Widely compatible with various pulse bag dust collectors, single-unit bag dust collectors, silo top dust collectors, and ash hopper unloading systems for powder recovery equipment. Suitable for dry dust removal in woodworking, hardware grinding, mining, cement, building materials, chemical, grain processing, metallurgy, and light industrial powder applications, this rotary valve is a standard airlock ash discharge device for small to medium-sized dust collection systems.
The equipment comes standard with a complete casing, precision impeller, geared motor, sealing end caps, bearings, and fixing accessories, offering a complete range of parts and strong versatility. The machine body boasts excellent sealing, preventing dust and ash leakage, and ensuring smooth, uninterrupted operation. It supports various specifications including normal temperature, high temperature resistant, explosion-proof, and stainless steel corrosion resistant models. The appropriate model can be matched based on dust temperature, corrosiveness, particle size, and discharge volume. Square and round inlet diameters are available, compatible with both new and old dust collection equipment for installation and replacement.
The rotary valve emphasizes airlock sealing and uniform quantitative ash discharge, suitable for intermittent ash discharge in small to medium-sized dust collection applications. For high-volume ash production, it can be used in conjunction with a screw conveyor to achieve fully automatic continuous ash conveying and unloading, further improving the stability of the automated dust collection system.

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