product

  1. Home
  2. Mining Industry

What should we pay attention to when using Raymond mill?

fineness:[!--fineness--]

capacity:[!--capacity--]

Apply:[!--Apply--]

Live Chat
What should we pay attention to when using Raymond mill?

Basic Working Principle of Raymond Mill

  1. After the material is crushed (jaw crusher, impact crusher, etc.) to the required particle size, the elevator sends the material to the storage hopper.
  2. The vibrating feeder sends the material to the main grinding chamber of the Raymond mill evenly and continuously.
  3. Due to the centrifugal force during rotation, the grinding roller swings outward and presses against the grinding ring.
  4. The scraper scoops up the material and sends it between the grinding roller and the grinding ring.
  5. Due to the rolling of the grinding roller, the crushing purpose is achieved.
  6. The fine powder after the material is ground is brought into the analyzer for sorting with the circulating air of the blower.
  7. The material with too coarse fineness falls back to the re-grinding.
  8. The qualified fine powder enters the finished product cyclone powder collector with the air flow and is discharged through the powder discharge pipe as the finished product.

Important Parameters of Raymond Mill

Raymond mill is divided into 3R (3 rollers), 4R (4 rollers), and 5R (5 rollers) according to the number of grinding rollers.

The main technical parameters include:

  • Inner diameter of the grinding ring
  • Number of grinding rollers
  • Size of the grinding rollers
  • Main shaft speed
  • Maximum feed particle size
  • Product particle size
  • Production capacity
  • Impeller diameter of the classifier
  • Air volume of the fan
  • Main engine power
  • Equipment weight and appearance

Typical Technical Parameters Table

Model 3R2715 4R3216 5R4119
Roller Number 3 4 5
Max Feed Size (mm) 15 20 25
Finished Size (mesh) 150-800 150-800 150-800
Capacity (t/h) 0.8-4.5 1.2-6.5 2.5-12

Advantages and Application Areas

Raymond mill has the following advantages:

  • Stable performance
  • Simple process
  • Convenient operation
  • Relatively small footprint
  • Strong systematization and complete set
  • Can form an independent production system for the rough processing, transportation, powder making and packaging of raw materials

Application Areas

It is widely used in the processing of non-metallic mineral powders such as:

  • Calcite
  • Marble
  • Chalk
  • Limestone
  • Talc
  • Wollastonite
  • Gypsum
  • Hard kaolinite
  • Clay
  • Feldspar
  • Barite
  • Bentonite
  • Graphite
  • Tremolite
  • Illite
  • Sericite

Solution to the Decline in the Output of Raymond Mill

1. Check the Powder Lock

If the powder lock of Raymond mill is not tightly sealed, powder back-sucking will occur, resulting in no powder or less powder output. It is very important to regularly check the tightness of the powder lock to ensure the stability of the powder output.

2. Check the Analyzer

The function of the Raymond mill analyzer (powder selector) is to analyze the size of the finished powder, whether it meets the finished product standard, and determine whether the powder needs to be sand-milled again. If the blades of the analyzer are severely worn, it will affect the classification effect. If the powder is too coarse or too fine, you can replace the new blades.

3. Check the Fan

The air volume of the Raymond mill fan has a direct impact on the powder output. If the air volume is too large, the powder is too coarse, and if the air volume is too small, the powder is too fine. It is necessary to adjust the air volume of the fan according to different materials to correct the powder particle size.

4. Check the Scraper

The scraper of the Raymond mill is responsible for shoveling the material. When the scraper is worn out, the shoveling material is affected, which will indirectly affect the powder output. Timely replacement of the scraper can ensure the powder output efficiency and normal operation of the equipment.

 

Recommended Products