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Choose right shredder to process solid industrial or municipal waste

Author:Zhongan-ECO Comefrom: Date:2021/10/18 11:19:28

Selecting the Right Waste Shredding Equipment

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It's critical important to choose the correct waste shredder even before you making the decision to invest in industrial waste disposal. While it may seem enough to simply know what operations your shredder will need to perform and the waste it will be handling, the consideration should involve more. There are many factors to be considered and these may affect the feasibility of the shredder equipment for your applications. Let's introduce these points:

What type waste will be process?

The type of material is, of course, among the most important factors in choosing a shredder and will have a great deal to do with the type of shredder you'll need. For instance, if you operate a scrap tire recycling plant, you will require a complete waste tire disposal system that can handle steel wire and cable along with rubber and nylon. These applications will be better served by low-speed, multiple shaft shredder machine with interlocking cutters or cams and very high torque.

Plastics have low melting points and will generally need to be shredded at relatively low speeds, or cut, to avoid clogging machinery. Granulators and similar machinery will be the most likely choice for companies that manufacture plastics or for plastic operations in recycling centers.

Construction and demolition companies, business and municipal recycling centers and some manufacturing industries may need to handle the disposal of many different materials. Depending on how the shredded materials are to be used or disposed of, individual units may be used to process each material, or an all-purpose solution may be the more cost effective choice.

Usually, the types of waste to be shredded will determine the type of shredder type required. All of our customerized shredders are designed and manufactured for particular groups of materials, so that enables our customers capable to handle most of wastes.

Output requirements

Output requirements for your shredded waste will also help determine the type of equipment to install. Tire recycling plant, for instance, may simply ship their shredded output to other facilities for separation, re-shredding and grinding. If so, a single-pass shredder or shredders will probably suit their needs and will probably cost less. If the tire recycling plant intends to create marketable products from their processes, the shredders will need to be equipped with other equipments to separate metals from studs and belts from the output, and to re-shred and/or grind the output to produce the final product.

In mixed wastes recycling applications, some operations just simply need to reduce the size of the waste to facilitate easier transportation to a recycling facility. Optionally, a business or community may want to handle all processing of recyclables within their own operations. This will require the addition of sorting and separating process. Depending on the intended use of separated outputs, baling or compaction equipment may be required.

As previously stated, it is OK as well to directly reuse shredder output in your own processes or to create a marketable product. Cabinet shops, for instance, may be able to process their waste to create wood pellets or briquettes for use in wood stoves.

Output Capacity

Output capacity is determined by the physical size and amount of waste to be handled. Capacity may be limited by more than hopper size. For instance, a tire shredder with a hopper large enough to accept heavy truck tire may not have a drum or cutters of sufficient size to accept the tire. Check rated capacities carefully before you buy the tire shredder.

Raw waste feeding type

There are two basic types: manual and automatic. Hopper-fed, multi-purpose shredders most often are manually fed, as the feed for these units tends to come intermittently, from fork lifts, trucks, bins, or by hand. Horizontal shredders, such as some wood chippers or plastic extrusion granulators, may be available with automatic feed options. For operations with a constant supply of material for the infeed, automatic feed will probably result in less clogging and less wear to cutting or grinding surfaces. Manually fed shredders may provide a less expensive alternative. Again, it's important to examine the needs of the operation carefully.

Mobility and Portability

Mobility and Portability is often a factor in selecting a shredder. While conventional recycling centers don't normally need to be mobile, demolition companies, construction firms, landscapers and other enterprises may realize the most benefit from the ability to use their shredding equipment on-site. Shredded materials can be transported from the job site more easily, and in many cases may be reusable directly on the job. For example, pulverized concrete can be used as aggregate in new concrete, or as fill material. Likewise, shredded wood can be immediately used as mulch for landscaping.

Portable shredders range greatly in size and care should be taken to determine the size that best suits your needs. It's also essential to consider power or fuel requirements for a unit that will be moved from site to site.

Health and safety concerns

Health and safety concerns are often overlooked in the selection of shredding equipment. Many shredding operations create large amounts of dust and airborne particles. Shredding or grinding equipment may need to include dust collection and removal systems to protect employees and/or operations. This becomes particularly important for equipment that will be operated indoors and in crowded locations.

Noise of the shredding equipment

Noise is another critical consideration that's often forgotten. Shredding and grinding processes can produce noise levels far above safe hearing ranges. While hearing protection is always a good idea and often required, it is important to note that the community where your equipment is located may have legal noise limitations that might determine the type of shredding equipment you can use in your location.

Even low-speed shredders can produce flying fragments. Brittle metals and plastics can break apart violently under pressure and this can result in various projectiles with the potential to do great harm to employees and surrounding structures or equipment. While most manufacturers make sure that shredder housings can withstand the impact of these objects and keep them contained, openings like hoppers and feed doors may need additional guards to avoid mishaps.

Maintenance and repair

Maintenance and repair are a necessary part of operating any kind of industrial equipment and shredders are no exception. In fact, considering the presure of these machines endure, even the best-built shredders may be considered high maintenance. Most notably, knives, cams, cutters, hammers, etc. will wear under normal use and will need sharpening or adjusting. Breakage of these parts is also possible, from accidental feeding of materials the machine isn't designed for, such as a spike in a wood chipper or a titanium rod in a general-purpose shredder.

The hours of downtime required for maintenance or repair of equipment may help determine the feasibility of using that equipment. Consider the options carefully. Does a shredder have replaceable blades, or is it necessary to replace a shaft? Which takes more time? How difficult is it to set blade tolerances? Does it require a tear-down of the machine? How readily available are replacement parts? What parts need lubrication? How often? These questions and more are worth the time it takes to ask your shredder machine supplier.

There are other choices to be made and many other considerations before deciding to purchase industrial shredding equipment. Throughput speeds, physical size, power requirements (and associated operating costs), weather resistance, and many other factors will all have some bearing on what kind of equipment to buy, and whether it's practical to buy the equipment in the first place.  

For other questions, you can contact ZHONGAN- professional waste shredder machine manufacturer and turnkey solution for solid waste processing.