1. Differences in working principles

Disc feeder

It uses a rotating disc to drive the material to move in a circular motion, and achieves continuous and uniform feeding by adjusting the disc speed and the scraper angle. Its "centrifugal-gravity" compound action principle is particularly suitable for the precise metering and conveying of powdered and granular materials.

Rod feeder

It relies on the reciprocating motion of staggered bars to push the material, and has the characteristics of forced feeding. The design of adjustable bar gap enables it to effectively filter oversized particles, which is suitable for the pretreatment of block materials containing impurities.

2. Comparison of structural features

Features Disc feeder Grizzle feeder Core components Cast iron/stainless steel disc Manganese steel wear-resistant grizzle Drive mode Gear motor Direct connection Eccentric wheel Connecting rod mechanism Sealing Fully enclosed structure Semi-open design Power consumption Low (3-15kW) High (7-30kW)

3. Typical application scenarios

Optimal working conditions for disc feeder:

Raw material batching system in cement plant

Quantitative feeding of fertilizer production line

Powder raw material transportation in food industry

Applicable occasions for grizzle feeder:

Feeding before primary crusher in mine

Pretreatment of construction waste sorting

High-temperature sintered ore cooling system

4. Selection suggestions

When the material size is less than 50mm and the feeding accuracy is required to be ±1%, disc feeder is preferred; when processing sticky and wet materials greater than 100mm or primary screening is required, grizzle feeder has more advantages. Modern intelligent control systems can realize the joint operation of the two equipment, such as the composite process of rough batching of grizzle feeder + fine adjustment of disc feeder.