What are the accessories that are easy to wear and tear in Raymond mill?

The three major accessories of the blade, grinding roller and grinding ring are the grinding that are most likely to wear and directly contact the material.

So how to slow down the wear of these three wearable parts?

First of all, we need to know what factors are related to wear: the hardness of the material, the harder the material, the higher the degree of wear when grinding, and the re-grinding of materials with lower hardness is less wear on the grinder. For materials with higher hardness, it is necessary to choose better wearable parts, such as manganese 13, or better grinding roller rings made of high-chromium alloys.

In the case of ensuring the efficiency of powder output, reduce the speed of the Raymond mill as much as possible, which can not only reduce the power consumption, but also effectively reduce the degree of wear and extend the service life. Wearing parts need to be overhauled regularly and severely worn parts to be replaced to ensure the best condition of the Raymond mill.

The whole structure of Raymond mill is composed of the main engine, analyzer (separator), pipeline device, blower, finished cyclone separator, jaw crusher, bucket elevator, electromagnetic vibration feeder, electric control motor, etc. The Raymond mill host is composed of a frame, an air intake volute, a shovel, a grinding roller, a grinding ring, a cover and a motor. In order not to delay the progress of the work, you can get a spare.

How Raymond Mill Works:Under the action of centrifugal force, the grinding roller is tightly pressed on the grinding ring, and the material is sent between the grinding ring and the grinding roller by a shovel; Under the action of grinding pressure, the material is crushed into powder. Then, under the action of the fan, the powdery material is blown up, the material that meets the fineness requirements is further processed by the analyzer, and the material that does not meet the requirements is returned to the grinding chamber of the mill to continue grinding.

Raymond mill structure: It is composed of a main engine, a fan, an analyzer, and a pipeline dust removal system, and can also be equipped with a crusher, a hoist, a silo, an electromagnetic vibration feeder, an electrical control cabinet, etc. According to the user's request.

Raymond mill three-dimensional structure, small footprint, strong completeness, from the block to the finished powder independent production system. It is widely used in metallurgy, building materials, chemical industry, mining and other fields of mineral product grinding and processing, suitable for processing various non-flammable and explosive minerals with Mohs hardness below grade 7 and humidity below 6%.

The first generation of Raymond mill system. Its structure is to erect a rotating spindle with a plum blossom frame in the center of the machine, 3 or more rotating grinding rollers are suspended on the plum blossom frame, and the rotating shaft rotates at a certain speed to drive the grinding roller to swing outward, and presses to the grinding ring embedded in the inner wall of the cylinder under the drive of centrifugal force. When the material enters the grinding area, it is carried to the front area of the grinding roller by the action of the plow-shaped guide blades under the grinding roller.

The second generation is called the Modified Raymond Mill. The main structural feature is the rotation of the bowl-shaped grinding ring, the grinding roller is pressurized by mechanical spring load to increase the grinding force, and the material is fed into the bowl-shaped grinding ring from the center and brought into the grinding roller by rotating centrifugal force. The grinding roller shaft is fixed on a unidirectionally movable swingarm, each of which is controlled by an adjustable spring.

A new generation of Raymond mill, called VR mill. This Raymond mill is similar in many ways to the structure of the Loesche mill. It is worth noting that it differs from the Loesche grinding conical grinding rollers and flat grinding discs, which use cylindrical grinding rollers and grinding discs with an inclined grinding surface at a 15-degree angle.

The grinding rollers have a roll-out device similar to the Loesche mill when inspected and serviced, and are also equipped with a protective device to prevent metal contact between the grinding roller and the grinding disc.

The work of the Raymond mill produced by Henan Red Star Machine is in the grinding ring of the most obvious material, the centrifugal force of the shovel blade roll is tightly sent to the grinding roller and the grinding ring intermediate, under the grinding and crushing into powder, and then in the action of the mill pressure The material of the fan passes through the analyzer to achieve the grinding material through the analyzer, who does not return the grinding material to the grinding chamber The material fineness of the required material continues to enter the cyclone separator into powder through the analysis. The exhaust air is isolated by industrial filter cloth, and the exhaust air is powdered at one time.

Raymond mill belongs to the vertical mill, which occupies a small area and saves more land resources for users. Raymond mill was first introduced into Germany in the sixties and seventies, and its English name is lemonIn the country is called Raymond Mill.

The most experienced and longest-standing manufacturer in China should be Henan Liming Heavy Industry Technology Co., Ltd. It is a leading enterprise in the grinding industry.

The working principle of Raymond mill: the reducer drives the central shaft to rotate, and the upper end of the central shaft is connected with a plum blossom frame, and the frame is equipped with a grinding roller device to form a swing call. The grinding roller itself rotates around the grinding ring while rotating due to friction, and the shovel throws away the material, forming a cushion layer between the grinding roller and the grinding ring, and crushes the material under the action of extrusion force, thereby making powder.

There are many manufacturers that produce Raymond mills, but it is recommended that if you want to invest, you should buy things from large manufacturers, which is worth trusting. It's all too common for small factories to cheat their customers. Zhengzhou, Henan Province is the base for the production of Raymond mill, and the most trustworthy one is Henan Liming Heavy Industry, which can be seen.

But if you choose another manufacturer, you'd better be careful, otherwise you'll be deceived!

Zhengzhou Shuguang Machinery Factory produces very well. Raymond mill, also known as Raymond mill, is widely used in metallurgy, building materials, chemical industry, mining and other fields of mineral product grinding and processing, the fineness of the finished product is between 613 microns and 440 microns (millimeters).

Raymond Mill Working Principle:

After Raymond mill crushes the large block raw materials to the required feed particle size, the material is transported to the storage bin by the bucket elevator, and then evenly sent to the grinding chamber of the host by the electromagnetic vibration feeder, the material entering the grinding chamber is ground between the grinding roller and the grinding ring, and the ground powder is brought to the analyzer by the fan airflow for classification, and the fine powder that meets the fineness requirements enters the large cyclone collector with the air flow through the pipeline, separates and collects, and then discharges the finished product through the discharger.

The blade system plays a very important role in the working process of the main engine. It is located at the lower end of the grinding roller, and the material is shoveled and fed between the grinding roller rings in the process of the same rotation of the shovel and the grinding roller to form a cushion layer, and the material layer is rotated by the grinding roller to produce an outward extrusion force to crush the material, so as to achieve the purpose of pulverizing.

Both the ball mill and the Raymond mill are used in the mining milling industry to grind ore. Raymond mill has finer fineness than ball mill, long service life, low maintenance cost in the later stage, and the overall application is more extensive than that of ball mill.

Ball mills

1. Working principle: When the ball mill rotates, due to the friction between the grinding body and the inner wall of the ball mill. Bring the grinding body up in the direction of rotation and then drop it.

In this way, the material is continuously crushed. There are three states of movement of the grinding body: dropping, centrifugation, and throwing.

2. Features: The advantages are: (1) It can be used for dry grinding or wet grinding; Dry grinding: mainly the material powder sticks to the ball and wall during grinding, which is not good for fine grinding materials and discharge (material viscosity), saving costs; Wet grinding: The higher the viscosity of the slurry after ball milling, the slower the slurry effect speed of the mill.

3. (1) Reliable operation, cheap grinding body, and easy to replace; ((5) When crushing explosive materials, inert gas can be filled into the mill to replace air.

The disadvantages are: (1) bulky and bulky; (2) High noise; (3) High power consumption and high production cost;

3. Applicable fields: It is widely used in mineral processing, building materials and chemical cement, silicate products, new building materials, refractory materials, chemical fertilizers, black and non-ferrous metal beneficiation, glass ceramics and other production industries, and other industries.

4. Wearing parts: the bearing position and bearing chamber of the reducer. Liner plates, spheres.

Discharging grate mill. According to the different working conditions of large gears, large gears are commonly manufactured from the following materials: (1) medium carbon structural steel, (2) medium carbon alloy structural steel, (3) carburized steel, and (4) nitriding steel.

Ball millsRaymond machine

Finished product: 80-425 mesh.

Nomenclature: Diameter + Height.

Working principle: The working principle of Raymond mill is that the grinding roller is tightly rolled on the grinding ring under the action of centrifugal force, and the material is shoveled up by the shovel and sent to the middle of the grinding roller and the grinding ring, the material is crushed into powder under the action of rolling pressure, and then the powdered material is blown up through the analysis machine under the action of the fan, and the material that meets the fineness requirements passes through the analysis machine, and returns to the grinding chamber to continue grinding if it does not meet the requirements, and the material enters the cyclone separator through the analyzer to separate and collect.

Applicable field: suitable for processing ores below Mohs hardness grade 7.

Applicable manufacturers: calcium carbonate, gypsum powder, humic acid, coal, refractory, stone powder factory, calcium powder factory Raymond mill.

Brand model: Joyoung mill.

System: JYS-M01

The working principle of Raymond mill: when working, the material that needs to be crushed is added to the machine from the feed hopper on the side of the hood, relying on the grinding roller device suspended on the plum blossom frame of the main engine, revolving around the vertical axis, and rotating itself, due to the effect of centrifugal force when rotating, the grinding roller swings outward, pressing on the grinding ring, so that the shovel scoops up the material and sends it to the grinding roller and the grinding ring, and achieves the purpose of crushing the material due to the rolling rolling of the grinding roller.

Raymond Mill, also known as Raymond Mill, full name in English: Raymond Mill. It is suitable for the preparation of various mineral powders and pulverized coal, such as the fine powder processing of raw ore, gypsum ore, coal and other materials. Raymond mill, Raymond mill, high-efficiency Raymond mill, high-pressure rotary roller mill.

Precautions: Do not refuel the mill at will when it is working normally, to ensure production safety, abnormal noise in any part of the mill, or sudden increase in load should be stopped immediately for inspection and troubleshooting, so as to avoid major accidents. When continuing to start the machine, the remaining material of the mill must be taken out, otherwise the current will be too large when the machine is started, which will affect the start-up.

Raymond mill working principle: Raymond mill is a special grinding equipment, its working principle is through a pair of relatively rotating grinding wheels contact each other to achieve crushing. There is an electric motor on the equipment, it transmits power to the spindle, two grinding wheels are installed on the spindle, they are in contact with each other, when the spindle rotates, the two grinding wheels are in contact with each other, when the material enters the grinding chamber, the grinding wheel will hold the material tightly, the material will be ground between the two grinding wheel modifications, and when the material is crushed to a small enough particle size, it will come out through the discharge port.