Shredders for Pallet Recycling

Transcription

1 Shredders for Pallet Recycling

2 Table of contents Introduction...3 Possible end products...4 Considerations.. 5 Two-phase system 6-11 System diagram. 12 Brochures Contact us...18

3 Pallets, pallets everywhere We all have them. Whether you buy, sell, ship or warehouse, just about any business that handles merchandise in large quantities has pallets. They are the ideal tool for storing and moving myriad materials. But what happens when the pallets become broken, or are just no longer needed? All too often they become a costly waste handling problem. However, if we explore the possibility of recycling, this waste handling problem becomes a saleable product. 3

4 Possible end-products: Pallets & Pallet Scrap Miscellaneous Wood Scrap Animal Bedding Biodiesel Boiler Fuel Briquettes & Pellets Cellulosic Ethanol Landscape Mulch Playground Cover 4

5 Considerations: When comparing different methods of size reduction, certain facts about your process must be known: Required throughput Required finished particle size Size and uniformity of in-feed material Method of feeding and collecting Existing infrastructure To achieve the majority of pallet grinding goals, a two-phase process is necessary to make the most valuable output product. 5

6 Phase One: Breaking them down Given their dimensions and overall bulk, the ideal method for reducing both whole pallets and pallet scrap is the single shaft shredder: The open "deck" design of the shredder allows for easy infeed of whole or partial pallets whether by hand, or stacked on a fork truck. The hydraulic ram forces the pallets into the grinding rotor which features four-way reversible tool-steel cutting teeth which are hard enough to cut through nails or other ferrous metals. The pallet material is continuously ground until it is able to pass the screen covering the shredder's discharge area. 6

7 Phase One: Breaking them down Single Shaft Shredder Screen size can vary, and screens may be changed to correspond with production goals. However, it is not recommended that a screen smaller than 1" be used for pallet processing. The smaller the screen, the longer the mill will need to work to produce the required size. Therefore, when processing a bulky product such as pallets or pallet scrap, use of a screen smaller than 1" will dramatically reduce the throughput of the single shaft shredder. 7

8 Phase Two: The finish grind For this phase, a finish grinding hammer mill is the best solution. Each of the items shown on the list of suggested end products require a specific finished particle size. The role of a finish grinding hammer mill is to produce the required finished size, anywhere from mulch to sawdust: The pre-ground pallets are fed into the grinding chamber of the finish grinding hammer mill where a combination of hammer blows, particle on particle contact, and impact with the internal breaker plate work in unison to further reduce the material. The material remains in the grinding chamber until it is able to pass through the screen covering the mill discharge. Screens are available in a variety of sizes, and can be interchanged to correspond with the operator's production goals. 8

9 Phase Two: The finish grind If the finish grinding hammer mill is outfitted with an integral fan, the process is taken to the next level. The pneumatic suction pulls the material through the hammer mill, then conveys the finished material to storage. finish grinding hammer mill 9

10 Exponential throughput! When you add the finish grinding hammer mill to the shredder not only do you go from whole pallets to the exact desired finished particle size, but the throughput rate is increased as much as 400% over that of the ram fed grinder alone. Here's why: Since the finish grinding hammer mill is producing the finished particle size, the shredder doesn't need to be concerned with it. As a result, a larger screen (2" to 3") can be used on the ram fed grinder, thus providing less resistance and allowing material to flow through the system at a much higher rate while still liberating all metals from the wood. 10

11 Critical middle step While the shredder and the finish grinding hammer mill are the stars of the show, it can't be overstated that the ideal set-up will also include two rotary magnet hump tunnels between the shredder and the finish grinding hammer mill. Anyone who handles pallets is aware that they contain metal fasteners, typically nails, which hold them together. All metals must be removed if the end product is to be saleable. And, while they are not hazardous to the initial grind, it is critical that all metals be removed prior to infeed into the finish grinding hammer mill to avoid a potentially explosive environment. hump tunnel magnets 11

12 Putting it all together 12

13 Brochures 13

14 MP Series Single Shaft Shredder The MP Series Single Shaft Shredder is designed for less power usage, minimal dust and reduced manpower requirements. Simply dump your scrap into the hopper and let the shredder do the work. The low noise, low RPM MP Series is the toughest, most durable machine you can buy for your wood processing needs. Each component was engineered with your needs in mind from the extra heavy frame, bearings and shaft, to the electrical controls and more. Applications: Pallets Demolition debris Custom crates and skids Furniture and wood scrap Miscellaneous wood scrap The Leaders in Size Reduction Boiler fuel Landscape mulch Volume reduction Playground cover Ideal primary grinder for: Pellet production Briquette production Biodiesel production Sawdust Wood flour Quality, since 1928

15 MP Series Technical Specifications Model Power Rotor Diameter Weight Grinding Deck MP hp (20-40 kw) 15 (380mm) 7250 lbs (3289 kg) 36 x 36 (910mm x 910mm) MP hp (30-50 kw) 15 (380mm) lbs (4767 kg) 52 x 52 (1320mm x 1320mm) MP hp (50-60 kw) 15 (380mm) lbs (6010 kg) 58 x 52 (1472mm x 1320mm) MP hp (60-70 kw) 20 (510mm) lbs (6804 kg) 66 x 66 (1680mm x 1680mm) MP hp (70-90 kw) 20 (510mm) lbs (7938 kg) 72 x 66 (1830mm x 1680mm) Model MP-13 Pallet Grinding System: Increase throughput up to 300% with the addition of finish grinding hammer mill. Four-way reversible tool steel cutting teeth and abrasion-resistant steel serrated anvil. Key Features: Choice of 12, 15 and 20 rotor diameter, each standard with four-way reversible tool steel cutting teeth. Heavy-duty grates or perforated screens available in many sizes. Serrated anvil made from abrasion-resistant steel. Heavy-duty, American made, off-the-shelf, non-customized components (bearings, gearboxes, fluid coupling, controls). Programmable electronic system logic with digital read-out. Adjustable hydraulic pressures, cycle timing and manual retraction. All feed hoppers are custom built to suit application. Several optional types of discharge conveying equipment available - either pneumatic or mechanical. Optional magnets for ferrous metal extraction. Easily connects to finish grinding hammer mill. The Leaders in Size Reduction 61 Depot Street Buffalo, New York info@hammermills.com

16 13 Series Finish Grinding Wood Hammer Mill Ideal for mid-range production operations, the 13 Series Finish Grinding Wood hammer mill is able to process virtually any biomass feedstock to the exact finished size required. Special mill components reduce material more efficiently, allowing a larger screen to produce the same particle size as competitor models using a much smaller size screen opening. This ability to use a larger screen translates to lower horsepower required per ton produced. Available in six standard sizes (13 to 48 wide), each featuring a built in fan for conveying the finished product to storage. The compact design, featuring an integral fan unit, saves floor space and expense, eliminating the need for a separately driven fan, ducting, motors and controls. Applications: Planer shavings Dry wood chips Green wood chips Pre-hogged wood scrap Sawdust Bark Torrefied biomass End Products: Briquette production Pellet production Boiler fuel Biodiesel Animal bedding The Leaders in Size Reduction Quality, since 1928

17 13 Series Technical Specifications Model Housing Shaft Diameter /2 (12mm) 2 3/4 (70mm) Rotor Width 12 1/2 (320mm) Rotor Diameter 24 (610mm) Bearings 2 7/16 (60mm) Integral Fan System 2800 CFM Screen Area Shaft Speed Tip Speed 475 sq inches (3064 sq cm) 3600 rpm 22, /2 (12mm) 3 1/4 (80mm) 17 1/2 (440mm) 24 (610mm) 2 15/16 (75mm) 3200 CFM 665 sq inches (4290 sq cm) 3600 rpm 22, /2 (12mm) 3 1/4 (80mm) 20 (510mm) 24 (610mm) 2 15/16 (75mm) 4000 CFM 760 sq inches (4903 sq cm) 3600 rpm 22, /2 (12mm) 3 1/4 (80mm) 24 (610mm) 24 (610mm) 2 15/16 (75mm) 5000 CFM 912 sq inches (5880 sq cm) 3600 rpm 22, /4" (20mm) 5 (130mm) 36 (910mm) 24 (610mm) 3 7/16 (90mm) C/F 1368 sq inches (8825 sq cm) 3600 rpm 22, (25mm) 6 3/8 (160mm) 48 (1220mm) 24 (610mm) 3 7/16 (90mm) C/F 1824 sq inches (11770 sq cm) 3600 rpm 22,600 Hogged Wood Scrap Planer Shavings Green Wood Chips Key Features: 24 rotor diameters operated at 3,600 RPM to produce high hammer tip speed. Available screen discharge areas from 475 to 1,824 square inches. Available with a variety of perforated screen sizes from.020 to 3. Variety of fan sizes to maximize mill s throughput. Heavy plate construction with internal ribbed liner plates. Four-way reversible hammers available in several styles. The Leaders in Size Reduction 61 Depot Street Buffalo, New York info@hammermills.com

18 Contact us Request a quotation Website: Contact us: info@hammermills.com 18