Raymond mill is mainly used for barite, calcite, potash feldspar, talc, marble, limestone, dolomite, fluorite, lime, activated clay, activated carbon, bentonite, kaolin, cement, phosphate rock, gypsum, glass , Insulation materials such as Mohs hardness of not more than 7, humidity less than 6% of the non-flammable and explosive minerals, chemical, construction and other industries more than 280 kinds of materials high fine powder processing, finished particle size in the 80-325 mesh range Within the arbitrary regulation, some materials up to 600 heads.

Structure of raymond mill

• 1, three-dimensional structure, small footprint, complete set of strong, from the block to the finished product powder into a production system independently.
• 2, the finished product fineness of fineness, through the sieve rate of 99%, which is difficult to have other milling equipment.
• 3, the mill drive gear with sealed gear box and pulley, smooth transmission, reliable operation.
• 4, Raymond mill important components are made of high quality steel, wear-resistant parts are high-performance wear-resistant materials, the whole high wear resistance, reliable operation.
• 5, the electrical system uses centralized control, milling workshop can achieve unmanned operation, and easy maintenance.

Work process of raymond mill

Materials crushed by the crusher to the required particle size, the material will be delivered to the storage silos by the elevator, and then crushed by the electromagnetic vibrating feeder will be evenly and continuously sent to the host mill grinding room. Grinding material in the grinding chamber due to a certain amount of water, grinding heat, water vapor, and the whole pipeline interface is not tight, the outside air is inhaled, so that the cycle pressure increases, to ensure that the mill work under negative pressure , The increased air flow into the dust collector through the remaining duct, after being purified into the atmosphere, reducing environmental pollution.

Maintenance of raymond mill

• 1, Raymond mill in the process of use, there should be a fixed staff responsible for the custody, the operator must have a certain level of technology. The mill must be installed before the operator must carry out the necessary technical training to understand the principle of the mill performance, familiar with the operating procedures.
• 2, in order to Raymond mill normal, equipment should be developed "equipment maintenance and safe operation of the system" to ensure the long-term safe operation of the mill, at the same time have the necessary maintenance tools and grease and the corresponding accessories.
• 3, Raymond mill used for a period of time, should be overhaul, while grinding roller ring wear parts such as repair and replacement of wear and tear, grinding roller device before and after the connection bolts and nuts should be carefully examined to see whether Loose phenomenon, whether to add enough grease.
• 4, the roller device used for more than 500 hours to replace the grinding roller, the roller sleeve of the rolling bearings must be cleaned, damaged parts should be promptly replaced, refueling tools available manual pump and grease gun.
• 5, the bearings are used No. 1 MOS2 grease or ZN-2 sodium hard grease lubrication
• 6. Roller bearing refueling once in every shift, the host center bearing once every 4 classes, blower bearings plus once a month. The maximum temperature of the bearing should not exceed 70 ℃, found overheating bearings, cleaning bearings and bearing housing should be opened and other accessories to clean once.

Raymond machine feeding mouth how to control the material, feeder installation problems?

The operating efficiency and output of Raymond Mill have a direct relationship with the feeding status of the feed port. Normally, it is required that the feed to the mill must be uniform and stable. There are also many users who use artificial feeding methods, but the effect is always unsatisfactory, especially For large-scale mills, artificial feeding is not desirable. How to control feeds? Electromagnetic vibration feeder professional Raymond machine matching feeding equipment, the structure is simple, easy to reduce loss, belonging to the low input of the mining equipment.

Detailed explanation of electromagnetic vibrating feeder: Electromagnetic vibrating feeder is used to feed material from storage silo or other storage equipment uniformly or quantitatively to the receiving equipment. It is a necessary equipment to implement flow-through automation and open type. Two kinds of closed type, according to the installation can be divided into hanging and desktop and several other. The electromagnetic vibration feeder is easy to operate and has little effect. It is used in many production processes, but it also has some installation issues that need attention.

Raymond Machine Feeder Feeder Installation:

• 1. Because the feeder is simple and compact in structure, it is mostly sold by the whole machine. Therefore, the customer does not need to disassemble in accordance with the time. The installation is convenient and can be done directly according to the position in the drawing, but it is necessary to pay attention to tightening the connection bolts, such as class springs, iron cores. Racks, splints, fixing bolts, etc.
• 2. The steel wire rope used on the boom has a certain degree of rigidity and attention is paid to the direction of the boom.
• 3. The vibratory force acting direction of the vibrator passes through the center of gravity of the trough body, so that stable operation can be ensured and the horizontal direction of the trough body is horizontal.
• 4. There should be a certain gap between the feeder and the silo and the feed inlet of the mill, and a soft bag connection can be used at the silo.
• 5. After completion, open the upper and lower inspection screws on the vibrator housing to prevent interference with normal vibration.
• 6. Before starting the machine, the point should be controlled at the minimum position. After the power is turned on, slowly increase the amplitude. Generally, 1.75mm to 1.5mm is appropriate.
• 7. The amount of material added to the electromagnetic vibrating feeder tank should be moderate, avoid emptying, and should not be excessive, otherwise it will cause some impact damage to the tank body.
• 8. During the operation of the equipment, it is also necessary to observe the stability of the current and avoid the timely elimination of the failure.

Raymond Mill must use electromagnetic vibration feeder? The vibratory feeder is the most suitable feeding device for the threshing machine, but not the only one. The purpose of uniform feeding is to ensure the efficient and stable operation of the pulverizer. The quality of the finished product is qualified, as long as it can control the uniform feeding equipment, not Be sure to have an electromagnetic vibratory feeder. Electromagnetic vibration feeder output control is constant, it is also the size of the model, how to adjust the feeder to achieve the adjustment of the amount of mill.

Feeder output adjustment method:

• 1. Adjust the inclination of the hopper tank body to increase or decrease the production volume. The larger the slope, the greater the output, and vice versa, the smaller the inclination angle, the maximum inclination angle should not exceed -20.
• 2, adjust the size of the material discharge gate, in order to increase or decrease the thickness of the tank material layer, this point is the most simple and direct way.
• 3, to control the feeder vibration size, because the greater the amplitude of the flow of the faster the flow, that is, the increase in output, output size by controlling the SCR rectifier conduction, you can control the linear amplitude, yield.

In Raymond Mill production line, electromagnetic vibration feeder has become an indispensable auxiliary equipment, and it is also an important part of milling production. The automaticity, strictness and evenness of feed material can be achieved by manpower. This is the machine. Production is gradually moving toward automation. It will not be a problem for future mill operations to achieve unmanned operation. It is also the direction that many milling mills have been striving.