Raymond Mill
【Feed particle size】: ≤30mm
【Processing capacity】: 8-176t
【Applicable materials】: dolomite, limestone, potassium feldspar, calcite, barite, talc, diabase, quartz, bentonite, gypsum, etc.
【Applications】: Calcium carbonate crushing, gypsum powder processing, power plant desulfurization, non-metallic mineral milling, coal powder preparation, etc.
Raymond Mill Description:
Raymond Mill is also known as Raymond Mill. It is suitable for the preparation of various mineral powders and the preparation of coal powder, such as fine powder processing of raw materials such as raw materials, gypsum mines and coal. Raymond mill, Raymond mill, high efficiency Raymond mill, high pressure roller mill.
Raymond machine is a common milling equipment, mainly used for barite, calcite, potassium feldspar, talc, marble, limestone, dolomite, fluorite, lime, activated clay, activated carbon, bentonite, kaolin, cement, phosphate rock High-fine powder processing of more than 280 kinds of materials such as gypsum, glass and thermal insulation materials with a Mohs hardness of not more than 9.3 and a non-flammable and explosive mineral, chemical, construction and other industries with a humidity below 6%.
The Advantages Of Raymond Mill
- 1. The grinding machine is installed on the ground. The above ground part is 50% of the height of the traditional mill, which reduces the height of the plant and saves investment in the plant, which is more conducive to equipment maintenance.
- 2. The grinding roller bearing seal is a new type of sealing method, which realizes maintenance-free and oil-free. Eliminate the bearing into the powder, greatly reducing equipment maintenance costs.
- 3. The grading cavity adopts a floating structure, which can automatically lift and shift to reduce equipment resonance, reduce noise and improve maintenance convenience.
- 4. Innovative grinding ring and grinding roller design optimize the arc-shaped occlusion method. Compared with the traditional old-style Raymond mill, it reduces the falling speed of the material through the grinding zone, prolongs the crushing and pulverizing time, and has the Raymond mill. The machine has a wide range of feed particle size requirements and ultra-fine grinding machine with ultra-fine grinding function. The crushing, grinding and ultra-fine grinding are in one step, and the fineness can reach d90:10um.
- 5. The rotating arm type installation structure of the classifier avoids the resonance of the main machine and the classifier, reduces the vibration of the equipment, reduces the running noise, eliminates the investment of the lifting and maintenance tools, and opens the maintenance operation, which increases the convenience of operation.
- 6. The middle tangential cyclone type air inlet makes the material spirally rise in the pulverizing and classifying chamber, which is more conducive to coarse powder extraction, reducing fan energy consumption and reducing production cost.
- 7. The whole system runs under negative pressure, no positive pressure zone, and the production environment is extremely good. The dust emission concentration is better than the national standard ≤30mg/m3.
- 8. The classifier adopts the German vertical classifier technology. The same particle size classification can reduce the motor speed by 50%, which improves the service life of the bearing and reduces the wear of the classifying turbine, prolonging the replacement cycle. The wind structure and the wind-grid inlet method make the structure wear-free. Through the combined adjustment of frequency conversion speed regulation and secondary air, the classification efficiency can be improved by 5-20%, and the particle size distribution is more concentrated.
- 9. Medium-pressure pulse cleaning bag type dust collector adopts sealing welding, and the total air leakage rate is <2%. The utility model has the advantages of small structure volume, large filtering area, long service life and suitable for ultrafine powder filtration. The total collection efficiency is above 99.99%, and the dust emission concentration is less than 30mg/m3, which is superior to the national standard and achieves environmental protection exhaust.
- 10. The induced draft fan provides power flow to the system and is connected by high-pressure centrifugal fan suction. Ensure that all links operate under negative pressure. No dust leakage.
What are the factors that can affect the efficiency of the Raymond mill?
As one of the important equipment for non-metal deep processing, Raymond mill is widely used in production bases such as mines and cement plants. At the same time, Raymond Mills pays great attention to the needs of the market with unique performance characteristics and superb technology. In the production process of Raymond mill, there are some reasons from various aspects that will lead to a significant reduction in production efficiency. What are the factors? The following are the technicians from Great Wall Heavy Industries to introduce them.
- 1: The composition of the product. If you need more fine powder in the product, you should sieve it in advance to prevent the fine powder from sticking inside the Raymond mill and affecting the conveying.
- 2: The viscosity of the product. Due to the viscosity of the product, the adhesion is large, which will affect the working efficiency of the Raymond mill.
- 3: The hardness of the product. In general, the harder the material is, the more difficult it is to grind the powder. As the hardness of the material is upgraded, the difficulty of grinding increases, and the easier it is to wear the Raymond mill.
- 4: The humidity of the product. Raymond mills are not very cold for products with large moisture content. Generally speaking, the moisture content of the product will cause adhesion inside the Raymond mill, and it will also gamble during the feeding process. Reduced the ability of the Raymond mill.
- 5: The Raymond mill uses the Raymond milled parts with better wear resistance and performance. The greater the capacity of the Raymond mill, the better the product can be milled.
The production efficiency of Raymond Mill is not static. You need to pay attention to the details of its work and better maintenance in actual production and daily operation. The above are just some points to improve the production of Raymond Mill. There are still more details to be aware of in the production. Proficiency and all aspects of mastering the operation and precautions of the Raymond mill can greatly improve production efficiency.
What are the easy-grinding parts of the Raymond mill?
Raymond mill is a commonly used grinding and milling equipment. Raymond mill is suitable for the grinding of more than 300 kinds of non-flammable and explosive materials with a Mohs hardness of less than 9.3 and a humidity of less than 8 percent. machining. And the use of vertical structure, small footprint, the number of mesh can be adjusted at will, and so on, deeply loved by the majority of users, the sales of Raymond mill has been steadily rising in recent years. So what are the easy-grinding parts of Raymond Mill, how to improve their wear resistance? Here is a small series for everyone to introduce in detail, I hope to help everyone.
The principle of Raymond mill is that the roller material is rolled on the grinding ring under the action of centrifugal force. The scraping material is sent to the middle of the grinding roller and the grinding ring by the blade, and the material is broken into powder under the action of rolling pressure, and then acts as a fan. The powdered material is blown up through the analysis machine, and the material that meets the fineness requirement passes through the analysis machine, and the heavy grinding chamber is not required to continue grinding. Discharge after meeting the requirements. In this process, Raymond Mill saves 30% to 40% more electricity than other milling equipment, which can greatly reduce the cost of use. The easy-grinding parts of Raymond mill are the blade, the grinding roller and the grinding ring. These three are the three easy-grinding parts of Raymond mill, which directly contact the grinding of the material.
So how do you slow down the wear and tear of these three easy-to-wear parts? First of all, we need to know which factors are related to the wear: the hardness of the material, the harder the material is, the higher the degree of wear, and the lower the hardness of the material, the less wear on the grinder. For higher hardness materials, it is necessary to choose a better abrasive parts, such as manganese 13, or a better high-chromium alloy material grinding ring. In the case of ensuring the efficiency of the powder, the speed of the Raymond mill is reduced as much as possible, so that the power consumption can be reduced, and the wear level can be effectively reduced to prolong the service life. It is necessary to regularly repair the wearing parts and replace the worn parts to ensure the best condition of the Raymond grinding.
