2011年11月16日星期三

coal mobile crusher plant manufacturers in india

Coal Crushing Machine

Coal crusher is the main crushing machine used in coal crushing plant. Coal crushing plant consist of many types of crushers, vibrating feeder, screen and grinding mills. Coal crushing equipments include jaw crusher, impact crusher, cone crusher hammer crusher and mobile crusher etc. Vibating feeder, screen and washing machine are also the coal processing equipments. These complete coal crushing plant produce small coal particles for further grinding process.

Stationary coal crusher plant use jaw crusher as coal primary crushing machine, impact crusher used as coal secondary crusher. Cone crusher is used as fine coal crushing machine. These crushes makes up stationary coal crushing plant.

Mobile crushing plant is the portable coal crushing unit, it including crushers, belt conveyor, vibraitng feeder and vibrating screen. Coal washing machine is a cleaning equipment, it is used to remove dust, clay and other unwanted materials.

Coal mill is the grinding machine used to grind crushed coal into powder. It is widely used in coal powder production line like thermal power plant.coal crusher machine

Coal crushing machine manufacturer

SBM is a coal crushing machine manufacturer in China, and supplies all types coal crushing & washing machines, vibrating screen, and grinding mill for coal mining, processing plant in Indonesia, South Africa, India, Canada.

SBM not only supplt types of coal mining machines, but also design coal processing solution with after-sale services: installation and maintenance.

Coal Mill Pulverizer, Vertical Coal Ball Mill Design

In Indian power stations, coal mills are of ball and race design or Raymond vertical spindle with rolls and bull rings. These mills are designed to pulverize coal from size 25mm to fineness of 70% through 200 mesh. Hence it is essential to supply coal to mills with correct size and correct quantity by coal feeders. Coal mills have to use extra power when higher size coal is fed to the mill. Similarly correct quantity of primary air needs to be supplied to mill so as to maintain air to coal ratio of 1.8 -2 in mill outlet pipes. For 30MT capacity mill 55 MT of primary air needs to be supplied per hour.coal ball mill

Coal Mill Performance

Gravimetric coal feeders can ensure correct and measured quantity of coal to coal mills, hence are preferred. Similarly to supply correct quantity of primary air, accurate measurement of flow is essential i.e. within +/- 2%. Hence venturies are preferred for flow measurement. Periodic calibration however is necessary. Many times it is observed that the operator supplies more primary air with the ratio of 2.2 to 2.5 or more to avoid high quantity of reject through pyrite hopper. In doing so, primary air convey heavier particles also in addition to finer particles to mill outlet. Instead of getting recirculated for further grinding these particles find way to burners, affecting combustion and flow distribution. Coal particles escape as un burnt along with flue gases or delayed combustion occurs at pendent super heaters causing high enough temperature to form slag. Operator thinks that it is the best mill as there is no problem of spillage of coal as reject and sharing more loads (handling more tonnage of coal). In one of the boiler, it is observed slag getting formed on probe during its travel in furnace, bellow Goose neck within minutes.

Mobile Coal Crusher

Mobile Crusher Outline

Mobile crusher also called portable crusher station is fully adaptable to all mobile crushing needs; it set up a new range of business opportunities for contractors, quarry operators, recycling and mining applications. It can eliminate the obstacles of the crushing places and circumstances, and offer the high efficient and low cost project plants for the client. To the client, it is the best choice.

SBM is the leading manufacturer of mobile crushing plant located in Shanghai, China. After 10 years production of track-mounted, fully mobile crusher stations, SBM has acquired rich professional experience and its products have been delivered crushing power for clients over 110 countries worldwide.coal mobile crusher plant

Coal Mobile crusher features


1. Integrative equipment group
2. Excellent flexibility
3. Lower freight cost
4. Fast set-up
5. Versatile adaptation and collocation
6. High performance and convenient maintenance
7. Compliance with environmental standard
8. Complete service from pre-sale to after-sale

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