How to Choose vibrating grizzly feeder for sale?

Summary'Not sure what type of feeder to choose? Feeders are used to hold and regulate surge loads and promote a steady supply to maximize production in processing plants.

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Not sure what type of feeder to choose? Feeders are used to hold and regulate surge loads and promote a steady supply to maximize production in processing plants. Feeders are offered in five types to match material size, feed rate requirements, location, and if fed from a truck, shovel, loader or mounted under a surge bin.

Types of Feeders

Apron Feeders

Apron feeders are used where extremely rugged machines handling large feed are required, but where no fines removal is needed or where fines are removed by a separate vibrating grizzly. They are also used to handle muddy or sticky material and are usually located ahead of large, stationary primary crushers. They are sometimes used to collect material from the discharge of large primary crushers where they absorb more impact than a rubber conveyor belt can economically withstand. Apron feeders can be equipped with standard (1/2 inch thick) fabricated pans (standard and heavy-duty optional (11/4 inch thick) fabricated pans (XHD Feeders only). They are available in widths of 30 inches to 72 inches and lengths of 9 feet to 50 feet.

Pan Feeders

Pan feeders are used to feed smaller material that has already been through a primary crusher and typically go under surge piles, surge bins or under crusher feed hoppers.

Belt Feeders

Belt feeders are typically used in sand & gravel operations under a hopper or trap with a 6-inch maximum size feed. They have variable speed control for optimum plant feed rate.

Data Required or Selecting a Feeder

1. Tons per hour to be handled, including maximum and minimum.

2.Weight per cubic foot (bulk density) of the material.

3.Distance material is to be conveyed.

4.Height material is to be raised.

5.Space limitations.

6.Method of loading feeder.

7.Characteristics of material.

8.Type of machine to be fed.

Applications of Feeders

Super Heavy-Duty Apron Feeder with Manganese Flights

Truck dumping or direct loading by dozer, shovel or dragline. Maximum lump size should not exceed 75 percent of feeder width.

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Super Heavy-Duty Apron Feeder with Pressed Steel Flights

Under hopper or bin, handling nonabrasive material. Maximum lump size should not exceed 75 percent of feeder width.

Heavy-Duty Apron Feeder

-Truck dumping or direct loading by dozer, shovel or dragline. Maximum lump size should not exceed 75 percent of feeder width.

-Under hopper or bin, handling non-abrasive material. Maximum lump size should not to exceed 30 percent of feeder width.

-Under large primary crushers.

Vibrating Feeder or Grizzly Feeder

Under primary crusher to protect belt conveyor.

Pan Feeder

Under surge piles, surge bins or under crusher feed hoppers.

Belt Feeder

Under bins, hoppers or storage piles. Maximum lump size should not exceed 30 percent of feeder width.

The main purpose of a Vibrating Grizzly Feeder is to feed a primary crusher in a primary application. Vibrating Grizzly Feeders reduce the amount of material going into the crusher by scalping out the product size ahead of the crusher. This reduces the size of the primary crusher required.

The Vibrating Grizzly Feeder provides a continuous feed rate under a variety of loading and material conditions. Vibrating Grizzly Feeders are designed to take heavy shock loads from trucks, shovels and loaders. This type of feeder can be used in quarries, recycling, industrial processing, mining, and sand and gravel operations, as well as in a wide range of processing industries

Vibrating Grizzly Feeders can be used in rip-rap plant applications to sort ROM material for use on dams, water control and decorative stone applications; for sorting gravel in dredge applications for sized decorative landscaping applications;  to scalp roots out of dirt and other materials to improve the product value for a customer; or to spread material from a conveyor to a wider secondary crusher, such as a Roll Crusher, where no grizzly section is required.

How Vibrating Grizzly Feeders Work

The Vibrating Grizzly Feeder consists of a pan section at the feed end to receive and start segregating the material. The discharge end consists of a grizzly section with openings that allow the undersized material to pass before discharging into the crusher. The feeder is mounted on springs and vibrated via a mechanism located underneath the feeder pan, protecting it from misfed material that fails to reach the feed hopper. The vibration force is angled to the feeder, pointing toward the discharge end. This action of the vibrator forces the material toward the discharge end while segregating the material, causing the finer particles to move toward the bottom of the load.

As the material travels to the grizzly section, the finer material settles to the bottom and passes through the openings in the grizzly. This bypassed material decreases the amount of material going into the crusher, reducing the size of the crusher required as well as the wear inside the crusher. The bypassed material can be combined with the material going through the crusher on the under conveyor. This prescreened material protects the under conveyor from the impact of the material exiting the crusher. The prescreened material can be segregated as a product, or it can be discarded if the fines in the material are a contaminate.

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