JET FILTER BOTTOM DISCHARGE SCRAPER

Low-storey-height-compatible heavy-duty filter-discharge station

A vertical mechanical discharge system for direct integration into the lower cone sections of jet-pulse bag filters in flour, semolina and feed mills. It conveys the masses of flour, semolina and airborne micro-dust that have sifted through the bags and settled at the bottom continuously and stably to the line outlet, eliminating clogging and bridging risks.

WORKING PRINCIPLE

Monoblock body integration — full-section product reception: the bottom scraper, made exactly to the filter body’s diameter, is flange-mounted to the filter’s lower collection section; all filtered dust settles by gravity straight onto the scraper’s circular bottom. Reinforced rotor and wear-resistant rubbers — kinematic mechanical scraping: the mechanically reinforced rotor arms, driven by a geared motor, constantly scrape with a circular motion the moist flour and dust mass that tends to stick to the bottom; the highly wear-resistant scraper rubbers bolted to the arm ends do this without a gap. Central outlet-conveying infrastructure — clog-free uninterrupted discharge: the raw material dragged by the rotor arms toward the centre or a defined outlet is discharged without clogging, continuously, to the downstream line equipment (airlock / rotary valve or screw).

KEY ADVANTAGES

- Maximum volume advantage at low storey heights: Unlike classic deep collection cones, the ultra-flat cylindrical body design offers unique mounting and volume flexibility in tight spaces with insufficient ceiling height, raising the plant’s usable-area efficiency.

- Heavy-duty reinforced inner-rotor technology: To work under heavy product pressure, the inner rotor shaft and arms are reinforced against torsional stresses; the flexible, replaceable scraper rubbers prevent metal-on-metal friction and protect the body’s life.

- “Smart-Vision” plexiglass inspection windows: High-strength plexiglass inspection glasses are placed on the body for safe, dust-free external monitoring of the operational flow, the rubbers’ wear state and the product density.

- Full fit to all bag-filter diameters: For full compatibility with filter capacities and industrial variations, it is made for all body diameters in the bag-filter model spectrum — in different sizes, diameters and mechanical types.

ENGINEERING NOTE

The bottom scraper is a critical process-safety component ensuring the uninterrupted operation of bag filters, especially on central aspiration and high-capacity flour-conveying lines. The flat body design not only saves space but reliably prevents flour from standing statically and reducing filter suction by bridging (clumping). The reinforced rotor preserves precise scraping precision even on the demanding passages where flour from high-moisture conditioned wheat is processed.