Raymond mill pulverizer

In the field of non-metallic mineral powder processing,there is a name that almost everyone knows-raymond mill pulverizer.raymond mill pulverizer,also known as suspended roller mill,is an effective closed-loop milling equipment widely used in mining,building materials,chemical and other industries.It is mainly used to process various non flammable and explosive mineral materials with a Mohs hardness of no more than 9.3 and humidity below 6%into fine powder between 80-600 mesh.
Its name comes from its invention,but it has become a common name for a type of grinder.After multiple technological iterations,modern raymond mill pulverizer have made significant improvements in efficiency,fineness,and reliability compared to the initial version.
The working process of raymond mill pulverizer can be clearly divided into three core stages:grinding,grading,and collection,forming an effective closed-loop circulation system.Its working principle is as follows:
Step 1:Grinding
After the material is crushed by the jaw crusher,it is sent to the storage hopper by the elevator,and then evenly and quantitatively fed into the grinding machine by the feeder.The internal shaft of the host drives the grinding roller hanger to rotate,and the grinding roller tightly rolls on the grinding ring under the action of centrifugal force.When the material passes above the shovel,it is lifted by the shovel and sent between the grinding roller and the grinding ring,where it is crushed by rolling and grinding.
Step 2:Grading
The powdered material after grinding is blown up by the airflow generated by the fan and rises to the analyzer located above the mill.The analyzer consists of a rotor and several blades,which rotate at high speed to form a strict"screening"area.
Qualified fine powder:Fine powder with a particle size smaller than the analyzer's set standard can be sent to the next stage through the airflow between the blades.
Unqualified coarse powder:Coarse powder with larger particle size is thrown towards the outer wall by the analyzer blades due to high centrifugal force,and then falls back into the grinding chamber for re grinding.

This grading process is crucial for raymond mill pulverizer to control the fineness of the finished product.

Step 3:Collect
The airflow carrying qualified fine powder leaves the analyzer and enters the cyclone collector.Due to the sudden increase in pipeline diameter,the airflow velocity slows down,and the fine powder separates from the air under the action of centrifugal force and gravity.The finished product is discharged from the bottom discharge valve.
Subsequently,the airflow with trace amounts of fine dust is purified again by a pulse filter to ensure emissions meet standards,and finally discharged from the entire system by a fan.
Effective energy saving:adopting a vertical structure,occupying a small area,and having strong completeness;The grinding roller is directly rolled onto the grinding ring under centrifugal force,with relatively low energy consumption.
Uniform fineness of the finished product:The built-in high-precision analyzer ensures a concentrated particle size distribution of the finished product,with a screening rate of up to 99%.

High reliability:The transmission system adopts a sealed gearbox,and the grinding roller device uses excellent materials,making the core components wear-resistant,durable,and stable in operation.

Environmentally friendly and clean:The entire system operates under negative pressure,preventing dust from escaping.The equipped dust removal equipment ensures a clean production environment and emissions meet environmental standards.
The raymond mill pulverizer processes a wide range of materials,covering almost all non-metallic minerals:
Building materials industry:raymond mill pulverizer processes limestone,calcite,heavy calcium,dolomite,talc,etc.for the production of putty powder,coatings,artificial marble,insulation materials,etc.

Chemical industry:Grinding bentonite,clay,activated carbon,kaolin,diatomaceous earth,etc.as fillers or additives for products such as paint,rubber,plastics,pesticides,etc.

Mining and Metallurgy:Processing fluorite,brucite,bauxite,manganese ore,iron ore,etc.for use in metallurgical fluxes,refractory materials,etc.
Other fields:raymond mill pulverizer can also be used for grinding glass,ceramic raw materials,petroleum coke,and limestone powder used for desulfurization in power plants.
Raymond mill pulverizer occupies an unshakable position in the field of small and medium-sized powder processing due to its mature structure,reliable operation,easy maintenance,and high cost-effectiveness.Despite the availability of more advanced milling equipment such as vertical mills,ball mills,and ultrafine mills,raymond mill pulverizer are still the preferred solution for many industries when processing 80-400 mesh fine powders.