Technical Data Sheet for an Economical Used Mill for Grinding Wires and Separating Copper from Plastic

Introduction

A Small to Medium Cable Grinding Mill This type of mill is particularly useful for separating copper from plastic, optimizing the recovery of precious metals and improving the efficiency of the recycling process.

Structure and Components

Cable grinding mills generally include the following components:

1. Mill Body : Made of sturdy steel, the body is designed to support the grinding process and resist wear and tear. The structure may vary depending on the make and model, but is generally compact and sturdy.

2. Grinding Rollers : Rollers or blades are used to shred cables. They can be designed with different types of teeth or blades depending on the type of cables to be treated and the desired particle size.

3. Feeding System : Allows the insertion of cables into the mill. Some models may have an automatic feeder, while others require manual feeding.

4. Separation System : After milling, a separation system, such as a vibrating screen or eddy current separator, is used to separate the copper from the plastic. This system is crucial for obtaining pure and valorisable materials.

5. Engine and Transmission : Provides the power needed for grinding. Motor power may vary based on mill capacity, but is generally adequate for the size and type of wire handled.

6. Material Discharge : The ground materials are discharged through an outlet, often equipped with a collection system to facilitate the management of the separated material.

Technical Characteristics

• Grinding Diameter : Suitable for small and medium sized cables.
• Grinding Capacity : Varies by model, but generally adequate for small to medium volumes of wire.
• Separation System : Includes technologies to effectively separate copper from plastic, such as eddy current separators or vibrating screens.
• Motor Power : Typically between 5 and 30 kW, depending on mill size and grinding capacity.

Usage Procedure

1. Installation : Place the mill on a stable and level surface. Make sure the material unloading system and electrical connection are correct.

2. Cable Preparation : Remove connectors or non-metallic parts from cables, if necessary. The cables must be clean and ready for insertion.

3. Loading : Insert the cables into the mill's power system. If the mill is equipped with an automatic feeder, load the wires into the feed tank.

4. Setup and Startup : Adjust mill settings to manufacturer specifications, including grind speed and type. Start the mill and monitor the grinding and separation process.

5. Separation and Collection : The ground materials pass through the separation system. Separated copper and plastic are collected in separate containers for recycling or reuse.

6. Shutdown and Maintenance : After use, turn off the mill and clean the work areas. Carry out regular maintenance to ensure optimal operation of the mill.

Accessories and combinations

• Suction System : To remove dust and small residues generated during the grinding process.
• Conveyor Belt : To facilitate the transport of cables towards the mill.
• Maintenance Kit : Includes tools and spare parts to keep the mill in good operating condition.

Formulas and Parameters of Optimal Use

1. Grinding Speed ​​(V) : Adjust the speed of the rollers according to the type of cord and the capacity of the mill. The basic formula for calculating speed is:

   $$V$$

   where NN $N$ is the number of revolutions per minute and DD $D$ is the diameter of the roller.

2. Grinding Capacity (C) : Determine the capacity based on the size of the cables and the motor power:

   $$C$$

   where PP $P$ is the engine power, tt $t$ is the operation time and RR $R$ is the mill efficiency.

3. Separation Efficiency : Monitor the efficiency of the separation system to ensure that copper and plastic are separated correctly.

Maintenance

To keep the mill in excellent condition:

• Regular Cleaning : Remove residual materials and dust from the mill and surrounding areas.
• Component Inspection : Check the wear of the rollers and the separation system. Make necessary replacements and repairs.
• Engine Maintenance : Check the correct functioning of the engine and electrical parts.

Evaluation of used cars

When evaluating a used mill:

• General Conditions : Check that the mill is in good aesthetic and functional condition.
• Separation System Functionality : Make sure the copper-plastic separation system is operational and in good condition.
• Engine and Component Status : Check the operation of the engine and other major components.

Sectors of Use

The Mill Used to Grind Cables is used in:

• Recycling Sectors : For the recovery of copper and plastic from disused cables.
• Metalworking Industry : For the treatment of cables and metallic materials.
• Electronic Waste Management : For the recycling of electronic components that are no longer usable.

Advantages of Used Equipment

Buying a used mill offers:

• Lower Cost : More competitive price than a new one.
• Reliability : If well maintained, a used mill can offer excellent performance.
• Immediate Availability : It could be ready for use without long waits.

In summary, an Used Cable Grinding Mill is an advantageous choice for cable recycling, offering effective recovery of copper and plastic. Choosing a used mill can represent an economic opportunity, as long as it is in good condition and properly maintained.