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The experimental research was carried out on beater wheel mill (mill No. M-12, type . N400.42) at 1200 MW e thermal power plant TENT B in Obrenovac, to investigate impact of coal .

The main element of the beater wheel mill is the beater wheel which fulfils two important functions: suction of the drying agent and transport of dust-gas mixture to dust ducts (fan function) as well as pulverizing of coal, which is fed to the mill, with appropriate granulation (grinding function) [3,4,5].The wheel (Fig. 2) is mounted at the end of the …

The mill has a lignite throughput of 170 tons per hour, corresponding to about seven truckloads of 25 tons each. Technical data • Gas throughput 535 000 m3/h • Beater wheel diameter 4,30 m The beater wheel is cantilevered. This permits easier access to the mill's wearing parts and consequently time and cost saving bearing replacement.

A beater wheel for a pulverizer mill is provided. The beater wheel includes a rotatable hub disc having apertures defined therethrough and a ring disc having respective apertures defined therethrough, and a plurality of tubular ribs, disposed therebetween and weldingly coupled thereto at a tubular first end to the hub disc and at a tubular second end to the …

The beater wheel mills built by ALSTOM Power Stuttgart are designed for maximum productivity. In nearly all major atmospheric, -lignite-fired steam power plants, the crude …

The invention relates to an apparatus, especially a beater wheel mill, for the preparation of a powdery fuel for boilers of thermal power stations. The apparatus contains a beater wheel (1) which is accommodated in a housing (2), a dust delivery duct (3) connected to the housing (2), situated in a plane which is at right angles to the axis of rotation of the …

Their original technology was designed for coal and beater wheel mills were applied to comminute the raw fuel and supply the furnaces. This technology is widely applied in coal power plants. The University of Miskolc has carried out an on-site and laboratory research resulted in significant capacity increase. This paper reports about the ...

A beater wheel for a pulverizer mill is provided. The beater wheel includes a rotatable hub disc having apertures defined therethrough and a ring disc having respective apertures defined therethrough, and a plurality of tubular ribs, disposed therebetween and weldingly coupled thereto at a tubular first end to the hub disc and at a tubular second end to the …

Method for operating a beater wheel mill and controller for controlling a beater wheel mill Download PDF Info Publication number US20100108789A1. US20100108789A1 US12/532,440 US53244008A US2010108789A1 US 20100108789 A1 US20100108789 A1 US 20100108789A1 US 53244008 A US53244008 A US 53244008A US 2010108789 A1 …

US2830773A US589481A US58948156A US2830773A US 2830773 A US2830773 A US 2830773A US 589481 A US589481 A US 589481A US 58948156 A US58948156 A US 58948156A US 2830773 A US2830773 A US 2830773A Authority US United States Prior art keywords beater wheel plates mill beater wheel Prior art date Legal status …

PATENT CLAIM: Beater mill, in particular beater wheel mill, with fan action and up to the Mühlenau: slaß-spirally expanding Mühlengehäusie, that in the lower part: has a: the spiral shape interrupting mill sump, through it Green identifies the fact that the wheel (3) behind the MüMensumpf is in the turning respect of the impact wheel (3 ...

A beater wheel mill is provided with a beater wheel (6) which draws in a hot conveying gas for drying the millbase and has interchangeable beater plates (12). The dimensions of the impact wheel are designed for a given application. In the event of a change in the operating conditions, the number of striking plates (12) is adapted to the conveying gas volume …

In the beater wheel, the lignite is pulverised primarily in the region of the inner edges of the impact plates. At the same time, the pulverised lignite is mixed thoroughly with flue gas, resulting in a high drying efficiency due to the abrupt increase in the surface of the lignite particles. Model of beater wheel mill N 200.45 built by Alstom ...

BEATER WHEEL MILLS: The beater mills are unique type of pulverizing equipments which carry out multi functions such as crushing, drying, shifting and transportation of coal, all …

The U.S. Department of Energy's Office of Scientific and Technical Information

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R. Šostakov. Beater wheel mills are designed to prepare a coal powder air fuel mixture for combustion in furnace chambers of coal-freed power plants by coal drying, pulverizing, classifying and ...

Application. Beater wheel mill is high speed (750-1500rpm) coal mill, which is widely used for direct firing lignite pulverizing system in thermal power plant with capacity 200MW or higher. It plays multi-purposes: drying, …

Beater for beater mill Info ... Prior art keywords wheel plates impact shoulders ring Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Beater wheel mills in lignite power stations usually have a flue gas recirculation duct which allows the use of hot flue gas to dry the lignite during the grinding process. The beater wheel itself is grinding element as well as mill fan at the same time. The speed of the wheel determines not only the crushing process of the lignite but also ...

Beater mills, in particular coal dust mills Info ... Prior art keywords wheel beater fan mills impact Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)