The emergence of Raymond Mill as a milling machine conforms to the development of the times! Raymond mill is indispensable for the beneficiation equipment line! Raymond mill is the most widely used mill equipment after construction, chemical, mineral processing, etc. after the crusher! However, now the overall development history of Raymond Mill is ordinary and ordinary! Who knows that the emergence of Raymond Mill almost set off as much as an industrial revolution! The production technology level of Raymond mill equipment and crushing equipment is gradually mature! At present, our common Raymond mills are 3R, 4R, 5R, 6R, which is one of the most common series of mills! In the development history of the mining industry, Raymond Mill has played a role and contribution that cannot be ignored in the processing and grinding of metal ores and non-metal ores. The development status of non-metallic miners is one of the important indicators to measure a country's scientific and technological progress and industrial development. The output value of non-metallic mineral powder in many industrial developed countries has exceeded that of metal mines. SBM heavy industry mill can be used to process non-metallic mineral materials with hardness below six grades. After years of development, it has become the mainstream equipment for non-metallic ore processing. The Raymond mill, ultra-fine powder mill, high-pressure suspended roller mill, high-pressure micro-powder mill, etc. produced by milling machine manufacturer SBM Heavy Industries, are self-developed, technically innovative The industrial milling equipment produced is highly efficient and low in energy consumption. In order to meet the requirements of users for processing different rocks, fineness, output, uses and different process requirements, in line with local conditions, optimize the investment scale, with the purpose of obtaining the best economic benefits for investment, the industrial mill production project , SBM Heavy Industry Machinery Co., Ltd. dispatches engineering and technical personnel to the user site for on-site survey, planning, design process, and is responsible for later installation and commissioning and maintenance services.

The working principle of Raymond mill is that the grinding roller crushes the grinding ring, and the crushing effect is achieved by the combined action of the analysis machine and the fan, and the material is powdered once, and the fineness is adjusted conveniently. The Raymond mill is installed in a complete set. It is a sealed device. The design of the circulating air is that there is no air leakage in its pipe connection. The sealing requirements are very strict. Where there is a leak in the connection of the pipeline, the output will be affected, the equipment is prone to tremor, and the output will be reduced. And there is a more critical place of Raymond Mill, that is, the position of the discharge port, which must be tightly sealed and cannot leak air. This place sucks in the air. If the air leaks, the material will not come down and return to the working chamber of the host. Inside, this can easily cause blockage of the device. The operation of the Raymond mill should be maintained and operated by professional technicians. Before going to work every day, the equipment should be inspected. The several roller assemblies of the Raymond mill need to be refueled once a day. During the refueling process, the continuous inspection of the grinding roller Whether and the grinding ring need to be replaced, and whether there is a phenomenon of bearing damage. Regularly check whether the equipment screws are loose, check whether the dust bag of the device is breathable, and pat it once a day to keep the dust bag breathable. When the Raymond mill is cutting, the feeding must be uniform, and there can be no too much or too little cutting. Too much cutting can easily cause blockage of the equipment. Too little cutting will cause too much equipment noise.

There is a certain difference between the design speed and actual use speed of the Raymond mill. The rotation speed of the small Raymond mill is about 280-220 rpm, the rotation speed of the medium-sized Raymond mill is about 140-180 rpm, and the rotation speed of the large Raymond mill is about 60-120 rpm. The rotation speed of the Raymond mill is directly related to the output and performance of the Raymond mill. The grinding capacity indicators of the Raymond mill mainly have three items: the rotation speed of the central axis of the Raymond mill, the quality of the Raymond grinding roller, and the centrifugal radius of the Raymond grinding roller. The rotation speed of the central shaft is directly related to the use efficiency of the Raymond mill. The same Raymond mill may have different output due to the rotation speed of the central shaft of the Raymond mill. In the process of using the Raymond mill, some customers install their own inverters to easily control the spindle speed of the Raymond mill. Grinding light materials (or small materials) can reduce the speed of the Raymond mill because of this The grinding capacity of Raymond Mill is sufficient, and the reduction of speed is to save power consumption and noise of the machine. If it is heavy material (or massive hard material), it is necessary to increase the rotation speed of the central axis of the Raymond mill, thereby increasing the centrifugal force, increasing the grinding capacity, and increasing the output rate of the Raymond mill.

Raymond milling machine is an ultra-fine milling equipment for processing ore milling. The fineness adjustment range is between 50-400 mesh, and it can be fed into powder once. Raymond mill uses limestone and other ore for processing limestone and other ore, energy saving and environmental protection, small footprint, low energy consumption, simple and efficient. The main components in the Raymond mill are grinding rollers, grinding rings, air ducts, blades, plum blossom frames, main shafts, etc. There are cast iron parts and cast steel parts. Raymond Mill's grinding rollers and rings are mostly made of alloy steel, which is more wear-resistant. Today, I will briefly introduce the method of adjusting the fineness of the processed materials of the Raymond milling machine that many friends have consulted. The fineness adjustment of the Raymond mill is simple as long as the damper is used to control the air volume. Another point is to adjust the fineness of the analyzer by controlling the speed of the analyzer. The fineness adjustment of the Raymond mill is that the air volume is large, the fineness is coarse, and the output is high; the air volume is small, the fineness is fine, and the output is low. Raymond mill adopts the principle of rolling roller air separation, so the wear of the grinding roller and grinding ring is relatively strong. When processing the material, it is recommended to crush the material below 3-5CM, so that the grinding roller and grinding ring Less wear and tear and higher processing output. Raymond mill is designed with positive and negative pressure. In operation, it is necessary to clarify the working principle and understand which part is positive pressure and which part is negative pressure. Another key technology of Raymond Mill is the valve at the discharge port. When there is no material, it must not leak. When there is material, it can play a sealing role. At this time, the material can be discharged at a uniform speed, but also Don't put too much material, there must be a small amount of material stored to play a sealing role, so the output is relatively high.

Due to the special use environment, Raymond mill must be properly treated before and during use. In the selection of materials in the design stage of Raymond mill, the media environment should be considered, and the materials must have good adaptability, corrosion resistance and thermal insulation. In the design of the Raymond mill structure, the welding seam should be minimized to prevent corrosion after penetration. At the production stage of Raymond Mill, we must also pay attention to anti-corrosion work. The mechanical materials should be inspected and registered. We must pay full attention to the anti-corrosion work of Raymond Mill, especially to strictly control the design specifications and design quality. When the Raymond mill is damaged, by repairing or replacing the parts, the Raymond mill can be guaranteed to work normally, that is, under low-cost maintenance, economic efficiency is improved. Then, the necessary maintenance work on the Raymond mill can keep it in good operating condition and prolong the service life of the Raymond mill.

As a modern milling equipment, Raymond mill itself will encounter various problems in the production process, such as performance degradation and wear of wearing parts. Recently, some customers have reported that the fineness of the milling of the Raymond mill is uneven. Then, Shanghai SBM Heavy Industry made an analysis, the specific contents are as follows: 1. Hardness of raw materials For different materials, the hardness is different. The hardness directly affects the grinding difficulty and fineness of the Raymond mill, so the harder the material, the greater the degree of grinding. In the process of using Raymond mill, reasonable ingredients should be used to ensure that the size of the material is uniform and the fineness of the mill. 2. Opening height and size of classifier During the installation of the Raymond mill, if the size of the opening of the classifier is not adjusted properly, it will affect the grinding operation and the fineness of the grinding. Therefore, in the installation and production process of Raymond mill, it is necessary to pay attention to check the opening size and height setting of the classifier. 3. Damage of the impeller blade of the analyzer During the grinding of materials by Raymond Mill, if the blade of the analyzer is seriously worn, the fineness of the material after grinding will become coarse, which will affect the quality of the grinding. At the same time, if the blade of the analysis machine is seriously worn, it will affect the overall performance of the equipment, so as to shorten the use time of the equipment. 4. Wear of grinding roller and grinding ring In the production process of Raymond mill, the grinding roller and the grinding ring are in direct contact with the material. In the long-term grinding process, different degrees of wear will occur. Once the grinding roller and the grinding ring are seriously worn, it will affect the fineness of the equipment degree.

There are many different types of Raymond Mill produced by our company. As for medium-sized equipment, there are two types, one is 4r Raymond mill, and the other is 5r Raymond mill. So, what's the difference between Raymond Mill's 4r and 5r, today SBM Heavy Industry Mill manufacturer will briefly introduce it for everyone. As for the 4r and 5r Raymond mills, the most basic difference is the number of grinding rollers, one is 4 grinding rollers, and the other is 5r grinding rollers. The processing capacity of different rollers is definitely different. In comparison, the processing capacity of 5r Raymond mill is stronger than 4r. Although there is a difference between the grinding rollers, the processing capacity of the two Raymond mills is still relatively large. The output of the 5r Raymond mill can reach about 8-10 tons, while the 4r Raymond mill has only about 3-5 tons. In addition, in terms of power, the 4r equipment is equipped with a 37kw motor, while the 5r is a 75kw motor. SBM is a professional mill manufacturer. The Raymond Mill introduced by our company has stable performance, strong processing capacity, and high cost performance. Welcome new and old customers to visit the factory and purchase equipment. The company can send technicians to the site inspection , Design scientific and reasonable programs.

Generally, when users use Raymond mills, the requirements for stones are different. For example, what is the hardness of the stones milled by Raymond mills, and the required moisture content of the stones is within a few percent, etc. The users of the milling machine are all confused, so the following is a brief introduction by the editor of Shanghai Shanzhuo Heavy Industry: During the processing of the stone by the raymond mill in india, the stone is first placed between the grinding rings of the grinding roller with a spatula, and the stone is tightly crushed under the centrifugal force and gravity of the grinding roller. On the ring, the stone is finally crushed and ground into powder. After understanding the working principle of Raymond mill, a lot of heat will be generated inside the grinding cavity during the grinding of the stone. If the moisture of the grinding stone is too large, the moisture of the stone itself will be heated during the grinding process. It will evaporate to a certain extent. In this way, the airflow direction inside the grinding chamber of the Raymond mill will be changed. If the situation is serious, it will lead to low capacity and explosion accidents. During the grinding of the stone by the Raymond mill, due to the excessive moisture of the stone itself, the stone sticks to the inside of the grinding cavity due to the high humidity during rolling, which causes more and more stone powder to adhere. The speed and pressure of the Mongolian mill are also increasing, which eventually leads to the output of the mill. If this phenomenon is not handled, the friction of other components will be increased, the speed of grinding will be reduced, and the wear on the accessories will be caused, which will reduce the life of the Raymond mill. However, different types of stones require different moisture during operation. Generally, the Raymond mill requires that the moisture is generally not higher than 6%, so that it can better display good results. This ensures that the milling efficiency and quality of the Raymond mill can achieve good results.

The phenomenon of residual wind will occur during the operation of raymond mill. The occurrence of residual wind seriously affects the normal use of the equipment. When the residual wind occurs, it must be resolved in time. In this way, the residual wind can collect the materials normally, quickly and effectively. Why is there a phenomenon of residual wind in the Raymond mill? 1. The Raymond mill in operation will generate heat, making the temperature of the fluid in the loop higher than the workshop by 30 degrees Celsius. The hot air flow must have a boring effect on the material, so that the moisture in the material will be vaporized, and the system flow temperature. Too high, the entire fluid expands due to the increase in temperature, and the equipment leaks too much, which results in excessive air intake during the use process and too small air exhaust. During the production process, a section of the loop is under negative pressure. Above the feeding port of the mill, they are in the negative pressure zone. The maintenance door and the feeding port of the raymond mill are not tightly sealed during operation, and the air will be sucked in through the feeding port when feeding. 2. The wind power system is one of the factors affecting the output and granularity of the equipment. If the system is not tightly sealed, it will cause air leakage or powder dust, which will make the workshop environment harsh and waste a lot of materials. Therefore, it is necessary to discharge the excess surplus air through the exhaust air pipe to remove dust, so as to avoid the disturbance of the production workshop. At the same time, the position of the residual air duct should be placed on the air duct of the blower and the large cyclone separator, so that a large amount of material enters the residual air duct. 3. When using Raymond mill, you can't just understand the knowledge of Yu Feng, but also understand that users must pay attention to all aspects of the understanding when using, so that the user's equipment can play a good state. The above is the introduction of the residual wind of the Raymond mill. I hope it will be helpful to everyone and friends. If you encounter problems that cannot be solved during production, you can consult us online and we will analyze your own equipment in detail. Some problems and give corresponding solutions.

Raymond mill is suitable for various mineral powder preparation, pulverized coal preparation, etc. It has a three-dimensional structure, small floor space, strong setness and excellent performance, and is well received by users. Then, after the Raymond mill is in operation, attention should be paid to the details that affect the long-term use of the Raymond mill. The following describes the problems that should be noted after the Raymond mill is shut down. 1. It is forbidden to stop the lubrication and water cooling system before the main body of the Raymond mill and the main bearing temperature have not dropped to normal temperature. 2. After the Raymond mill stops moving, the high-pressure floating device should be turned on immediately to prevent the bearing alloy and the hollow journal from being damaged due to the cooling shrinkage of the grinding body until the grinding body cools to normal temperature (ambient temperature). 3. When using the auxiliary transmission device to rotate the grinding machine, turn the inlet valve of the exhaust fan of Raymond mill to 20%, and the hot air valve is fully closed. 4. After the system main and auxiliary machines are stopped, the valves should be closed and the recorder switch should be closed. 5, the exhaust gas treatment system should be based on the Raymond mill after the shutdown, the rotary kiln system to stop the material to adjust the system pressure (such as the humidification tower valve, the size of the relay fan opening, etc.). The above mainly introduces the five major precautions after the Raymond mill is stopped, mainly for some detailed operations. These operations can reduce the damage of the equipment and ensure its performance. Many users can easily ignore these details after shutting down, even Some people think that only the running link is important. This kind of thinking is not advisable. Whether it is before or after use, or in use, only pay attention to all aspects of detail to ensure the normal use of the mill and ensure the performance of the equipment.