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In the grinding processing industry, the Raymond mill, Raymond mill and Raymond mill you hear are actually the same equipment, just with different names. They are all grinding machines in cement plants, mines and chemical plants. Powder equipment is one of the important equipment in the non-metallic mineral deep processing industry. Raymond machines have strong adaptability, stable performance and high cost performance. They have been widely used in the processing of non-metallic minerals in my country.Some old customers are very familiar with the overall processing process of grinding equipment. They often encounter some problems during the production process, including regular maintenance time, and have accumulated certain experience. New users will inevitably encounter some problems during use, such as the powder output problem of the Raymond machine during the processing of the natural calcium carbonate production line.The working principle of Raymond mill： Is that the grinding roller rolls tightly on the grinding ring under the action of centrifugal force. The material is scooped up by the shovel and sent to the middle of the grinding roller and the grinding ring. The material is broken into powder under the action of the grinding force. , and then the powdered materials are blown up under the action of the fan and pass through the analyzer. The materials that meet the fineness requirements pass through the analyzer, and the materials that do not meet the requirements return to the grinding chamber to continue grinding. The materials that pass the analyzer enter the cyclone separator. Separate collection.The equipment required for operation includes:Industrial filter cloth is used to isolate the exhaust air and turn it into powder at one time. Raymond mill is mainly used for barite, calcite, potassium feldspar, limestone, talc, white stone, gypsum, etc. Highly fine powder processing of hundreds of materials such as non-flammable and explosive mineral products with Mohs hardness not greater than 9.3 and humidity below 6%, chemical industry, building materials products, etc. The product particle size can be adjusted arbitrarily within the range of 40 to 400 mesh.
Raymond mill is a commonly used crushing equipment, mainly used to grind raw materials into fine powder. Here's how it works:1. Raw material feeding: Raw materials enter the grinding chamber of the Raymond mill through the feeding device.2. The functions of grinding rollers and grinding rings: The core components of Raymond mill are composed of a pair of rotating grinding rollers and a fixed grinding ring. The raw material is sandwiched between the grinding roller and the grinding ring. The rotation of the grinding roller causes the material to be squeezed, rubbed and sheared.3. Grinding and classification: During the grinding process, the raw materials are gradually ground into fine particles. The function of the grinding ring is to re-grind larger particles to ensure the uniformity and fineness of the powder. At the same time, a grading device is installed in the grinding chamber, which can classify the powder as needed and control the particle size of the powder.4. Powder discharge: After grinding and classifying, the fine powder is blown or transported to the powder collection device by wind or mechanical force to complete the entire grinding process.Production Line of desulfurized powder：Raymond mill uses a lot of equipment in operation, such as blowers：Different types of Raymond mills have differences in grinding raw materials into fine powder and internal structures, but their basic working principles are similar.
The main machine of Raymond mill consists of frame, grinding roller, grinding ring, blade, imported volute, casing and motor. Through its structure, let's first take a look at how its main machine works: The working process of the main machine of Raymond mill is to drive the central shaft to rotate through the transmission device. The upper end of the shaft is connected to a plum blossom frame, and the plum blossom frame is equipped with a grinding roller device. Form a swing fulcrum. As the grinding roller rotates around the grinding ring, the grinding roller itself rotates due to friction. The lower end of the plum blossom frame is equipped with a shovel system, which is located at the lower end of the grinding roller. During the same rotation process of the shovel and the grinding roller, the material is shoveled into the space between the grinding roller and the grinding ring to form a cushion layer, and is crushed by the outward centrifugal force (i.e. extrusion force) generated by the rotation of the grinding roller, thereby achieving the purpose of crushing.Production Line of titanium dioxide：The range of meshes that Raymond mill can process:The fineness of the materials grinded by the Raymond mill is the same. Generally, it can be adjusted arbitrarily between 50-325 mesh, and some materials can be processed to 400 mesh. If you need finer ultra-fine powder, please choose an ultra-fine grinder. When the Raymond mill processes fine powder, it has the characteristics of low fineness of fine powder and high fineness of coarse powder. The Raymond mill series has many types of equipment. The fineness of each is the same, but the output and power are different, and the size of the equipment is also different. You can choose the device model based on your own funds, power supply, and actual usage. You don’t necessarily have to choose a bigger and better model, it’s recommended to choose one that suits you. If conditions permit, supporting equipment can be equipped for automatic feeding. If there are no conditions, you can choose artificial feeding.
Raymond mill is a commonly used industrial grinding equipment and is widely used in various industries. Such as mining and metallurgy, construction materials, chemical industry, energy and environmental protection, pharmaceuticals and food processing, etc. Raymond mill can also be used in plastics, rubber, ceramics, glass and other fields. All in all, Raymond mill has a wide range of applications and can meet the requirements of different industries for powder fineness and quality, improving production efficiency and product quality.Generally speaking, Raymond mill uses the relative motion of the grinding roller and the grinding ring to grind and classify the raw materials, thereby achieving the purpose of grinding the raw materials into fine powder. This kind of equipment is widely used in the grinding process in ores, building materials, chemicals and other industries.
After the Raymond mill crushes the large pieces of raw materials to the required feed granularity, the materials are transported to the storage bin by the bucket elevator, and then sent to the grinding chamber of the host machine by the electromagnetic feeder, and then enter the grinding chamber. The materials inside are ground between the grinding roller and the grinding ring. The ground powder is brought to the analyzer by the air flow of the fan for classification. The fine powder that meets the fineness requirements is sent to the large cyclone collector through the pipe with the air flow for separation and collection. , and then discharged through the unloader to become the finished product.The working process of the main machine is to drive the central shaft to rotate through the transmission equipment. The upper end of the shaft is connected to the plum blossom frame. The grinding roller is installed on the frame to form a swing fulcrum. It not only rotates around the center, but also the grinding roller revolves around the grinding ring. When the blade and the grinding roller rotate together, the material is shoveled and fed between the grinding roller and the grinding ring to form a cushion layer. This material layer is crushed by the outward centrifugal force (i.e. extrusion force) generated by the rotation of the grinding roller. , thus achieving the purpose of milling.Production Line of putty powder (dolomite)：The analyzer drives the blades on the turntable to rotate through the speed-regulating motor and the secondary deceleration to form a grading effect on the powder. The speed of the blade rotation is adjusted according to the particle size of the finished powder. When you want to obtain finer particles, you must increase the rotation speed of the blades to increase the contact between the leaves and the powder, so that the unqualified powder is thrown to the outer wall of the blades and separated from the airflow, and the coarse particles fall into the grinding chamber due to the action of gravity. After re-grinding, the qualified powder is sucked into the large cyclone collector with the air flow through the blades. After the air flow and the powder are separated, the powder is collected. The large cyclone collector plays a very important role in the performance of the grinding mill. , when the airflow carrying powder enters the collector, it is in a high-speed rotating state. After the airflow is separated from the powder, the airflow shrinks with the cone wall and moves toward the center to the bottom of the cone (from the natural length of the airflow) to form a The airflow cylinder rotates upward, and the powder is collected.Since the core of the upward rotating airflow is in a negative pressure state, the sealing requirements for the lower end of the collector are very high, and the outside air must be strictly isolated. Otherwise, the collected powder will be taken away by the core airflow again, which directly affects the performance of the entire machine. output, so the lower end of the collector is equipped with a powder lock. Its function is to isolate the external positive pressure gas from the negative pressure gas of the collector. This is a very important component, such as a tongue plate without a powder lock or a powder lock. If the anastomosis seal is not tight, there will be no or less powder output, which will affect the output of the whole machine.
The vertical mill is composed of a motor, a grinding wheel, a reducer, a pressurizing mechanism, a grinding disc, a powder separator, a casing and other parts. The centrifuge has the characteristics of high efficiency and low consumption. The grinding roller is a mechanical component used to grind materials and is installed on the output shaft of the reducer. The pressing mechanism is a mechanism that provides grinding pressure to the grinding roller. When grinding the material, a certain pressure must be applied to it.Processing and recycling of refractory materials：When the vertical mill is working, when the vertical mill rotates, the motor drives the grindstone to rotate. The material flows from the feed port to the grinding disc, and hot air is sent out from the air inlet. Under the action of the centrifugal force of the grinding disc, the material is ground and crushed. The edges are rolled up by the high-speed airflow of the air ring, and larger materials are returned to the mill.The materials in the air flow, in the upper separator, under the influence of the rotor, qualified powder can be sent out directly, collected by special dust removal equipment, and become finished products, while unqualified coarse powder will be cone-shaped The funnel is returned to the grinding disc and grinding continues until it is qualified. When part of the water-containing material passes through the hot air flow, it can be dried. By adjusting the temperature of the hot air, the humidity requirements for various materials can be achieved. By adjusting the separator, the thickness of the product can be changed to suit Various needs.
Before starting the Raymond mill in the Raymond mill workshop, check whether all access doors are closed tightly, check whether the jaw plate gap of the crusher meets the feed particle size, and adjust the speed of the analyzer to approximate the particle size requirements of the finished product. Finally, boot in order.1. Start the bucket elevator;2. Start the jaw crusher;3. After the material is stored in the silo, start the analyzer;4. Start the blower (start with no load, then load after normal operation);5. Start The main machine of Raymond mill starts the electromagnetic vibrating feeder immediately when starting the main machine. At this point the Raymond mill grinding work begins.The simple operation sequence of Raymond mill is as follows: Start: elevator → crusher → analyzer → fan → main machine → feeder. When the Raymond mill is shut down, each machine should be shut down in the following order:1. First turn off the feeder to stop feeding;2. Stop the host after about one minute;3. Stop the blower after blowing away the remaining powder;4. Finally, turn off the analysis machine.The shutdown sequence of Raymond mill is: feeder → main machine → blower → analyzer. Note: After the elevator transports a certain amount of material to the silo, it first stops the crusher and then stops lifting. This item should be changed based on the current amount of material stored.Zinc sulfide alliance：Raymond mill is not allowed to refuel at will during normal operation. Production safety must be ensured. If abnormal noise occurs in any part of the grinding mill, or the load suddenly increases, it should be stopped immediately for inspection and troubleshooting to avoid major accidents. The remaining material in the mill must be taken out when starting the machine again, otherwise the current will be too large when starting the machine, which will affect the start-up.
1.The hardness of the material. The harder the material, the more difficult it is to Raymond grind, and the more severe thewear and tear on the equipment. Raymond grinding speed is slow, of course, Raymond grinding capacity is small.Grinding of gold ore：2. The humidity of the material, that is, when the moisture contained in the material is relatively large, the material is easy to adhere to the Raymond mill and is also prone to blockage during the unloading and conveying process, resulting in a reduction in the Raymond grinding capacity.3. The fineness of the material after Raymond milling is required to be high, that is, the finer the material required to be ground by Raymond milling, the smaller the Raymond milling capacity.4. The composition of the material. The more fine powder contained in the material before Raymond milling, the more it will affect the Raymond milling, because these fine powders are easy to adhere and affect transportation. For those with a large amount of fine powder, it should be sieved in advance.5. The viscosity of the material. That is, the greater the viscosity of the material, the easier it is to adhere.6. The better the wear resistance of the Raymond grinding parts (hammer head, jaw plate) of the Raymond mill, the greater the Raymond grinding capacity. If it is not wear-resistant, it will affect the Raymond grinding capacity.
The vertical mill is a commonly used metal processing equipment with the characteristics of high efficiency and high precision. It is mainly composed of a spindle, a bed, a slide, a feed mechanism and other components. Among them, the spindle is the core component of the vertical grinding mill, which can realize high-speed rotation and grinding of the workpiece. The bed is the support structure that mainly bears the workbench, feed mechanism and other equipment. The slide table is used to support the workbench and spindle. It can realize the feeding and positioning of workpieces, and the feeding mechanism can accurately adjust the feeding speed and direction of workpieces.Production of chemical raw materials：Vertical grinding machines are mainly used for processing planes, cylinders, gears and other parts. The grinding process is to first clamp the workpiece to be processed on the workbench, and then adjust the feed speed and direction of the workpiece through the feed mechanism. , grinding it with the spindle. During the grinding process, the spindle rotates, and the grinding abrasive generates friction through the contact surface between the grinding head and the workpiece, thereby removing the material on the workpiece and forming a smooth surface.
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