Understanding the Working and Best Practices for Using a 3 Roll Mill

Industrial equipment is a mandatory necessity in modern times, which depends more on machines than ever. Roller mills are also one of the important pieces of industrial machinery required for various applications. They are basically a type of compression mill which leverages single, double, or triple cylinder-shaped heavy wheels mounted in a horizontal position. The mill works by rotation of the cylindrical wheels around their long axis against endplates of opposing pairs.
ointment mill roller

ointment mill roller

Basically, it helps in crushing or grinding different materials. However, the 3 roll mill is capable of a lot more, with its shear force developed through the three horizontally placed rolls rotating in opposite directions and varying speeds. The following discussion helps you uncover the important details about the working of triple roll mills and the best practices for using them.

Working of 3 Roll Mills

The functional design of the 3 roll mill empowers it to become one of the top priorities among methods for separation of minutely fine particles. The applications of triple roll mills are also evident in mixing, refining, homogenization, or dispersal of viscous materials fed to them. How does a triple roll mill achieve these functions? The answer to this question can be discovered in the design of the triple roll mills.
manual three roll mill

manual three roll mill

Working Principle for 3 Roll Mills

You could find three horizontally placed rolls in the triple roll mills, with all the rolls rotating in opposite directions at different speeds in comparison to each other. The material you want for milling has to be placed in between the center and the feed rolls. The material is then transferred from the center roll to the apron roll by the property of adhesion. Now, the shear forces between the rolls help in creating the dispersion.

It is important to note that a lower distance between the rolls can generate more shear while reducing throughput. However, you could come across common gap settings in the measurement of almost 0.001”. You could remove the milled material by scraping it off the apron roll with the help of a take-off knife. All the processes have to be repeated again for improving dispersion or until the stage of reaching particle size equilibrium.
Manual three-roll mill group

Manual three-roll mill group

Notable Applications of 3 Roll Mills

The applications of the 3 roll mill gain popularity across various sectors. Even if it is a classic technology having inherently low throughput alongside implying the need for skilled operators, triple roll mills are still a favorite. They find applications in the preparation of fine particle dispersions in ointments, paints, dental composites, paints, cosmetics, inks as well as other viscous materials. Therefore, it is clearly evident that the demand for triple roll mills is genuinely valid, especially for their unique functionalities.

Best Practices for Triple Roll Mill Maintenance

Although triple roll mills are highly functional additions to industrial equipment, they are still machines. Therefore, you need to follow certain best practices to ensure that your triple roll mill works efficiently with better security. Here is an outline of the best practices to ensure safe and efficient three roll milling.
· Take Care of the Unboxing
When your order for a triple roll mill arrives, you are most likely to open it up right away. However, you need to keep your excitement under check and make sure that you handle the unboxing carefully. Generally, triple roll mill suppliers ensure that the package is supplied in a completely assembled form.

So, you have to be careful while removing the mill from the container so as to avoid any damage to the equipment. Most important of all, you should be very careful to avoid any scratches or damage to the working surface of the rolls. The effectiveness of a triple roll mill depends considerably on the smoothness of the roll surfaces.

· Set the Mill in Place
Before your start the operations of your 3-roll mill, you must ensure that it is set in the right place. First of all, you should make sure that the mill has been bolted appropriately in the desired place. It is important to note that you need a solid base, especially for production size triple roll mills. After leveling and bolting the mill in the desired place, you should look for a qualified electrician to take care of wiring and installation of the essential components for electrical control.

· Positioning the Take-off Knife
The take-off knife is one of the most critical components in a triple roll mill as it helps in scraping off the milled material from the apron loop. The take-off knife of the triple roll mill’s apron comes with a sharp cutting edge, and it is important to handle it with extreme caution. With the proper positioning, you would find the knife making contact with the roll just above the centerline while being completely parallel with it.

· Determine the Gap Setting
The gap setting between the rolls of a 3-roll mill also plays a crucial role in its effectiveness. However, it could be a complicated decision as increasing the gap offers better throughput while reducing the shear force. So, you must carry out testing for finding out the ideal gap setting for your desired products to achieve improvement throughout without compromising with dispersion quality. · Care during Operation of the Mill If you are using a triple roll mill, then you must be aware of the necessary precautions you must take while operating the machine. First of all, you should not run the mill without any feed. If the product has been completely milled, you must open the rolls and disengage the apron. Most important of all, you should avoid wearing loose clothing or accessories which could probably get tangles with the rolls. Furthermore, you should also focus on the maintenance of ball or roller bearings in the roll journals by lubricating them regularly.
hydraulic roller miller

hydraulic roller miller

With a clear impression of the best practices of using three roll mills, you could be able to get the best value from your investment in the machine. Apart from obtaining the best results, you can also ensure that the equipment is operational for quite a long time. Franli is one of the trustworthy turnkey solution providers you can rely on for high-quality industry-grade triple roll mills. Go ahead and make the most of triple mill power right now!

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This article only represents the author’s point of view.
This article is published under the authorization of the author.
Source: Franli

This article address: Understanding the Working and Best Practices for Using a 3 Roll Mill

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