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What is a coal mill? You are likely to answer the question immediately: it is a kind machine used to mill the coal into pulverized coal. Undoubtedly Easton Stick Womens Jersey , you are right. Do you want to know more about it? Here we go. Coal mill is widely used in many factories and industries. For instance, coal powder equipments in steel mill, heat-engine plant and cement plant. It also has a promising prospect in cement mill clinker. Then when it goes to such areas as classification Drue Tranquill Womens Jersey , maintenance that we are not familiar with, we find it necessary to know more about it.


Classification


Low speed coal mill


Low speed coal mill are usually cylinder mill. It consists of a rotating cylindrical roller or roller with tapered shape at both ends. There are steel balls in the coal mill. The speed of the roller is 15-25 rmin. It is the steel balls that strongly impact and squeeze the coal, and pulverized coal is produced. That is not the end. Then the pulverized coal is dried and sent off. After separating Nasir Adderley Womens Jersey , pulverized coal of certain particle size will be sent to pulverized coal bunker while the rest will be sent directly to coal burner. Cylinder mills are heavy, huge machines with high power consumption and big noise. But do not forget they are reliable.


Medium speed coal mill


The speed of medium speed coal mill is 50-300 rmin.There are many kinds of medium speed coal mill. Roller machine is one of them. Such machines are compact in structure, small in size. Meanwhile they are energy-saving Jerry Tillery Womens Jersey , low noise and easy to operate. But the complex structure makes the maintenance a harder work.


High speed coal mill


The speed of high speed coal mills is 500-1500rmin. They are made up of high speed rotor and mill shell. Fan pulverizing mills and hammer swing sledge mill are the most typical ones. They have simple and compact structure. The continuous operation time is shorter than any other kind of coal mills because of the abrasion.



Maintenance


Maintenance is a work that must be done every day for fear that the coal mill may break down. Operators should check up the machine regularly. Do make sure that every bolt is in good position with no looseness. If there is looseness, tighten them. Check if there is enough lube in the bearing. If not, fill lube on time.


The information that I mentioned above is very important to the coal mill operators. It is useful to operators as well as those who want to buy one. To the operators Mike Williams Womens Jersey , this article can be served as an instruction. They will know the dos and don’ts of operation. To those who want buy a coal mill, this article will be advisable. So no matter what purpose you have, you will find it helpful.

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