What can be done with Raymond Mill What is Raymond Mill

Raymond mill is widely used in metallurgy, building materials, chemical industry, mining and other fields, grinding and processing of industrial and mineral products, suitable for processing various non-flammable and explosive minerals with Mohs hardness below grade 7 and humidity below 6%, such as gypsum, talc, calcite, limestone, marble, potassium feldspar, barite, dolomite, granite, kaolin, Pengrun clay, maifan stone, bauxite, iron oxide red, iron ore, etc., and the fineness of the finished product is between 613 microns and 440 microns (millimeters).

R-type Raymond mill is widely used in barite, calcite, potassium feldspar, talc, marble, limestone, dolomite, fluorite, lime, activated clay, activated carbon, bentonite, kaolin, cement, phosphate rock, gypsum, glass, insulation materials and other Mohs hardness is not greater than the grade, humidity below 6 non-flammable and explosive minerals, chemicals, construction and other industries of more than 280 kinds of high-fine milling processing, the finished product particle size of 80-325 mesh range arbitrarily adjusted, some materials up to 600 mesh.

Raymond mill is suitable for barite, calcite, potassium feldspar, talc, marble, limestone, ceramics, glass and other non-flammable and explosive mining, chemical, building materials, metallurgy and other industries such as non-flammable and explosive mining, chemical, building materials, metallurgy and other industries of milling and processing, the finished particle size can be adjusted arbitrarily within the range of 100 325 mesh.

The inside of the Raymond mill is mainly as follows: the crushed material is continuously and uniformly and quantitatively sent to the main engine mill chamber for grinding, the powdered powder is taken away by the fan airflow, and is graded by the analyzer, and the powder that meets the fineness enters the large cyclone collector with the air flow through the pipe, separates and collects, and then discharges the finished powder through the powder pipe, if the fineness is unqualified, it needs to be cycled and grinded until it is qualified.

The grinding part is the main working part of the mill, which is composed of a feed hopper, a flow adjustment mechanism, a fast and slow grinding roller, a grinding roller spacing adjustment mechanism and a body. There are usually two forms of grinding rollers: one is the fine groove (wire drawing) engraved on the surface of the grinding roller with different geometric parameters, which is called the toothed roller; The other type is a smooth cylindrical surface called a smooth roller.

There are two kinds of feeding and grinding roll clutch mechanism of the mill, manual control and automatic control, and the traditional automatic control is mostly hydraulic.

The whole working system of Raymond mill includes jaw crusher, blower, analyzer, pipeline device, finished cyclone separator, electromagnetic vibration feeder, electric control motor, etc., after the large block material is crushed to the required particle size by the jaw crusher, the material is sent to the storage hopper by the elevator, and then sent into the main engine mill chamber for grinding by the vibrating feeder evenly and continuously, and the milled powder is taken away by the fan airflow. After grading by the analyzer, the powder that meets the fineness enters the large cyclone collector with the air flow through the pipeline, separates and collects, and then discharges the finished powder through the powder pipe, and then the air flow is sucked into the blower by the return air pipe at the upper end of the large cyclone collector. The whole airflow system of this machine is closed circulation, and it is circulating in the state of positive and negative pressure.

The analysis machine drives the 60 blades on the turntable to rotate through the speed regulating motor and the two-stage deceleration to form a grading effect on the powder. The speed of the blade is adjusted according to the size of the finished powder. When you want to obtain fine-grained powder, it is necessary to increase the speed of the blade, so that the contact between the blade and the powder increases, so that the unsatisfactory powder is thrown to the outer wall by the blade and separated from the air flow, the coarse powder falls into the mill chamber for re-grinding due to the action of self-gravity, and the qualified finished powder is sucked into the large cyclone collector by the blade with the air flow, and the powder is collected after the air flow and the powder are separated.

1. After the large block raw materials are crushed to the required feed particle size, the materials are transported to the storage bin by the bucket elevator;

2. Then the electromagnetic vibrating feeder is evenly sent to the grinding chamber of the main engine, the material entering the grinding chamber is scooped up by the shovel blade and enters the grinding roller and the grinding ring to be crushed, the blower blows the air from the diverter into the grinding chamber, and the crushed powder is sent to the analysis room, and the large particle material falls back to the grinding chamber and re-grinds the qualified fine powder with the air flow into the finished cyclone powder collector, and after being separated from the air, it is discharged from the discharge port as the finished product;

3. In the process of working of the main engine, the blade system plays a very important role. It is located in the mill.

Raymond Mill, full name in English: Guikuang 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.

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 cavity to continue grinding if it does not meet the requirements, and the material enters the cyclone separator of the analyzer to separate and collect.

What is the reason for the low output of the Raymond mill is, the sudden decrease in output, it may be that the powder lock is not adjusted well, the seal is not tight, resulting in the powder being sucked into the fan, resulting in a reduction in production, the solution is to adjust the powder lock, repair the air leakage, do not have air leakage, can improve the output. 2. Raymond grinding wearing parts (grinding rollers, grinding rings, shovel blades) are seriously worn, the shovel blade can not scoop up the material to form a material layer, the grinding rollers and grinding rings are seriously worn, and the materials cannot be effectively grinded, it is recommended to replace the wearing parts, which can improve the output; Third, the large feed size will also cause the reason for low output, Raymond mill feeding has strict requirements, according to the feeding requirements of each model, can not exceed too much, large lumpy materials can be crushed through the crusher first, and then enter the mill processing; Fourth, the material moisture will also cause a reduction in production, because Raymond mill is a dry mill, the processing material can not exceed 6% of the water content, the material is too wet, it will reduce the normal output, it is recommended to dry or dry, to ensure the drying of the material, in order to make the mill output normal. Fifth, low voltage will also cause the output of Raymond mill to decrease, you can find an electrician to measure whether the voltage is normal.

Reasonable use of Raymond mill, correct operation, regular maintenance, and nip the fault in the bud can effectively ensure the normal operation and output of the equipment. Hope my answer can help you.

Take a look at the structure and you'll understand.

For different types of Raymond mills, the difference in performance is due to the difference in structure, but its specific working principle is similar, and no matter what kind of material is processed, its working principle is unchanged, here is to introduce the working principle of the machine.

For the production process of the machine, the material is first processed by the crushing equipment, and then added to the Raymond machine for grinding, the material after grinding is qualified as the finished product, and the unqualified continues to grind, so as to ensure that the finished product particles are uniform, which is the general process of the entire grinding production process, due to the variety of Raymond mill models, when configuring the production line, One of the issues that need to be paid attention to is the matching of models between different equipment, so as to ensure the smooth progress of production.

In the interior of the Raymond mill, its working principle is mainly as follows: the crushed material is continuously and uniformly and quantitatively sent into the main engine mill for grinding, the ground powder is taken away by the fan airflow, and is graded by the analyzer, and the powder that meets the fineness enters the large cyclone collector with the air flow through the pipeline, separates and collects, and then discharges the finished powder through the powder pipe, if the fineness is unqualified, it needs to be cycled and grinded until it is qualified.

In the interior of the Raymond mill, for the grinding process of the material, it is mainly carried out in the main engine, which requires the assistance of multiple parts, such as the grinding roller grinding ring blade, etc., the role of the shovel blade is to shovel the material and add it to the middle of the grinding roller grinding ring, and then the two will crush the material, these core parts are indispensable for the grinding process, so the possible faults need to be dealt with in time to ensure the performance of the Raymond mill.

The above mainly introduces the working principle of Raymond mill, for the analysis of this problem, the above introduction is more detailed, first introduces the working process of the entire production process, and then analyzes the grinding principle inside Raymond mill, as well as the important parts required for the grinding process, in the actual work process, the maintenance of these important parts is an important condition to ensure the smooth operation of Raymond machine.

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Analysis: Raymond mill is a kind of grinding machine imported from abroad, at present, the domestic production is more than the void, it is suitable for the preparation of various mineral powder, pulverized coal, such as raw ore, gypsum ore, coal and other materials of fine powder processing.

From the outside, it looks like a steel container is erected, with air inlets, air outlets, and an inlet in the middle. The shape is somewhat similar to the MPS mill. The centerline of the Raymond grinding rod is upright, and the center line of rotation of the MPS grinding hole is approximately horizontal.

The lower part of the mill has a motor to drive the internal grinding rod and the grinding disc to rotate to crush or grind the material to be grinded, and the finished material is blown up by the wind at the air inlet.