Ten simple moves to let you effectively improve the grinding efficiency of Raymond mill

Raymond mill is a common industrial grinding equipment, widely used in barite, calcite, potassium feldspar, talc, marble, limestone, ceramics, glass and other materials grinding. It is more popular because of its low price and high output. In actual production, users are usually very concerned about the efficiency of Raymond mill. So, how to improve the grinding efficiency of Raymond mill?

How to improve the grinding efficiency of Raymond mill?

Ten simple moves let you effectively improve the grinding efficiency of Raymond mill!

Reasonable choice of material hardness

The harder the material is, the more difficult it is to process and the more serious the equipment wears. The speed of Raymond mill becomes slower and the efficiency will be reduced.

Reasonable choice of material moisture and viscosity

When the moisture contained in the material is large, the viscosity of the material becomes large, the material is easy to adhere in the Raymond mill, and it is also easy to block during the feeding process, resulting in a decrease in the efficiency of the Raymond mill.

Suggestion: use the equipment reasonably, strictly observe the instructions of Raymond mill in the daily production process, pay attention to the hardness, humidity and viscosity of the material, and do the daily maintenance so as to extend the life of Raymond mill to a large extent, give full play to the excellent performance and create benefits.

Reasonable selection of product size

The higher the fineness of the material produced by Raymond mill, the finer the material required for Raymond grinding, the lower the efficiency of Raymond mill.

Suggestion: Users can choose different Raymond mills according to the different fineness of the ore to be ground, for example, below 400 mesh can meet the requirements by choosing ordinary Raymond mill, if the requirements for fine powder are too high, to reach 1000 mesh or even higher fineness should choose ultra-fine micro powder mill, then you can add other equipment according to your production capacity and economic strength.

Reasonable choice of host speed, improve the host grinding force

Since the grinding force mainly comes from the centrifugal force of the grinding rollers, the speed of the mainframe directly affects the size of the grinding force. Low main shaft speed may be one of the reasons for low powder output rate, insufficient power, loose transmission belt or serious wear will cause unstable deceleration of main shaft speed.

Suggestion:Consider the bearing capacity of the host motor, a factor to improve the productivity of the pendulum mill. Increase the mill running kinetic energy, adjust the belt or a new one.

Reasonable adjustment of blower air pressure and air volume

Due to the physical properties of various non-metallic minerals raw materials, chemical composition are huge differences, such as graphite, stone has a smaller density of minerals, in the adjustment of wind pressure, air volume should be relatively denser minerals, such as: barite, iron ore, etc.. Need to adjust the appropriate, such as too large, it is easy to make the coarse particles in after the classifier sieve can not be well graded and mixed into the finished product, there are unqualified products; such as too small, the host is easy to block the phenomenon of material, so that the machine can not operate normally.

Suggestion: according to the nature of the material, adjust the blower air pressure, air volume

Reasonable design of the shovel device and the choice of wear-resistant materials for the grinding rollers and rings

The shovel device is an important device to directly shovel the material between the grinding roller and the grinding ring. After technical development and improvement, the shovel chatter design of Raymond mill is more reasonable, which can shovel up and let the material between the grinding roller and the grinding ring to be fully ground. The wear and tear of the shovel, grinding roller, grinding ring and other major grinding wear parts will affect the powder output rate.

Suggestion: choose wear parts made of high wear resistant material, such as high chrome cast iron. The shovel knife can not shovel the material, grinding roller grinding ring wear serious can not play a good grinding role resulting in low powder processing rate, wear parts should be replaced in a timely manner after wear.

Do a good job of equipment lubrication

Another reason that affects the speed of Raymond mill mainframe may be due to the dulling of grinding teeth, so you need to check the transmission parts such as grinding teeth from time to time, and make preparations for lubrication and replacement.

Suggestion: regularly check and add lubricating oil to the equipment, which can make the equipment run more smoothly and thus improve production efficiency.

Unclog the ducts and make a good seal

Raymond mill conveying duct blockage, resulting in powder can not be transported normally, will cause low powder yield or even no powder problems, to solve the treatment need to stop the duct to unclog the material, and restart the machine under the material.

Additional tips

Suggestion: The superfine powder contained in the material has a large cohesive effect, and the loose specific gravity is small, occupying a large volume, also easy to adhere to the pipe wall and silo wall, not easy to fall, so the inner wall of the pipe and silo should be as smooth as possible, preferably lined with galvanized plate or stainless steel plate, and the discharge taper of the silo should be as small as possible, preferably with a silo wall vibrator. Raymond mill production line discharge port powder locker is not adjusted to the correct state, resulting in poor sealing, powder backward absorption and other phenomena, to ensure that the powder locker, return air pipe valve and other valves on the pipeline should be in a correct and good working condition.

Adopting closed circuit grinding process

It is very difficult to classify the material size in the existing Raymond mill. For this reason, a classifier or fine sieve is used to separate the qualified particles from the grinding products, and the coarse particles are returned to the Raymond mill for regrinding. In the closed circuit grinding, the unqualified coarse particles should be forced to pass through the Raymond mill repeatedly until they are qualified.

Suggestion: Keeping the presence of appropriate amount of returning sand can eliminate the influence on the product particle size due to the fluctuation of the new feed ore of the Raymond mill.

Raymond mill work site regular overhaul

In the process of regular overhaul, worn parts can be identified in advance, and faults can also be identified in advance. It can be repaired in advance to avoid affecting the production.

The simple ten strokes allow you to not only effectively improve the grinding efficiency of Raymond mill, but also make the performance of Raymond mill more stable, reduce the failure rate, and prolong the service life of Raymond mill. For you to save cost costs and expenses, so that the production of Raymond mill without obstacles to create more benefits.