Contents Catalog
Advantages of Raymond mill in processing carbon black
Output advantage
The Raymond mill features an advanced structure and highly efficient principle. It can operate continuously and stably. When processing medium-fineness (80 to 800 mesh) carbon black, it has a high output and can meet the demands of large-scale production.
Cost advantage
The mechanical structure is mature, with a low failure rate and low maintenance costs. The energy consumption is relatively lower than that of air flow mills, which can save electricity bills. It is easy to maintain and has a low cost.
Advantage in fineness range
It can stably produce carbon black products ranging from 80 mesh to 400 mesh. The precise classification system can flexibly adjust the fineness of the output powder to meet the demands of the rubber, plastic and other industries.
Advantages of systematic integration
From crushing to collection, a complete closed-loop system is formed. Each link works closely together, with a high degree of automation, which improves production efficiency, reduces labor costs, and generates less dust emissions, making it environmentally friendly and green.
The process flow of carbon black processing by Raymond mill
Pretreatment and feeding
After being roughly crushed to less than 30mm by a jaw crusher, the carbon black raw materials are sent to the storage bin by a bucket elevator. Then, they are evenly and quantitatively fed into the grinding chamber by an electromagnetic vibrating feeder to ensure stable operation and product uniformity.
Core grinding
The material falls into the rotating grinding disc and, under the action of centrifugal force, enters the space between the grinding roller and the grinding ring, where it is crushed into powder by the effects of crushing and shearing. The fineness of grinding depends on roller pressure, wear and the characteristics of the material.
Grading and sorting
The powder is sent to the high-speed turbine classifier by the ascending airflow. Adjusting the impeller speed can precisely control the fineness (the higher the speed, the higher the fineness). Qualified fine powder enters the collection system with the airflow, while coarse powder falls back into the grinding chamber to form a closed-loop circulation.
Finished product collection and purification
The powder-laden gas flow enters the cyclone collector, and most of the finished products (80%-90%) are discharged after centrifugal separation. The dust-laden exhaust gas is further deeply purified by a pulse bag filter. The dust is recovered into finished products, and the clean gas is discharged, achieving environmentally friendly production.
Key points of processing carbon black with Raymond mill
Anti-sticking and anti-blocking design
The pipeline design increases the diameter, reduces the number of elbows, and uses smooth inner linings. The collection system adopts anti-condensation and anti-static coated filter bags to enhance the ash cleaning system. The system is insulated to prevent water vapor condensation.
Wear-resistant material
Grinding rollers, grinding rings and other components are made of highly wear-resistant alloy materials. Regularly check the wear condition and repair or replace them in a timely manner.
Optimization of the airway system
Accurately calculate and match the air volume and air pressure of the main fan, install regulating valves and sensors, and monitor and adjust in real time.
Cooling system
When necessary, add a water-cooled jacket outside the mill and introduce cold air into the air inlet to control the grinding temperature.
Summary
Raymond mill, with its systematic integration advantages of high and stable production, low cost and controllable fineness, has achieved large-scale processing of carbon black through a set of efficient closed-loop process flow including pre-feeding, grinding, classification, collection and purification. The key to its successful application lies in the special optimization design of anti-sticking, wear resistance, air path and temperature control based on the characteristics of carbon black.
