Pulverizer

Pulverizer

A pulverizer is a mechanical device for the grinding of many different types of materials. For example, they are used to pulverize coal for combustion in the steam-generating furnaces of fossil fuel power plants.

Types of Pulverizers

Ball and Tube Mills

A ball mill is a pulverizer that consists of a horizontal rotating cylinder, up to three diameters in length, containing a charge of tumbling or cascading steel balls, pebbles, or rods.

A tube mill is a revolving cylinder of up to five diameters in length used for fine pulverization of ore, rock, and other such materials; the material, mixed with water, is fed into the chamber from one end, and passes out the other end as slime.

Ring and Ball Mill

This type of mill consists of two rings separated by a series of large balls. The lower ring rotates, while the upper ring presses down on the balls via a set of spring and adjuster assemblies. The material to be pulverized is introduced into the center or side of the pulverizer (depending on the design) and is ground as the lower ring rotates causing the balls to orbit between the upper and lower rings. The pulverized material is carried out of the mill by the flow of air moving through it. The size of the pulverized particles released from the grinding section of the mill is determined by a classifer separator.

MPS Mill

Similar to the Ring and Ball Mill, this mill uses large "tires" to crush the coal. These are usually found in utility plants.

Bowl Mill

Similar to the MPS mill, it also uses tires to crush coal. There are two types, a deep bowl mill, and a shallow bowl mill.

ee also

*Grinding mill
*Burr mill
*Cement mill
*Power station
*Fossil fuel power plant
*Thermal power plant


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Look at other dictionaries:

  • Pulverizer — Pul ver*i zer, n. One who, or that which, pulverizes. [1913 Webster] …   The Collaborative International Dictionary of English

  • pulverizer — Pulverizer, Puluerare, In puluerem redigere. Poyvre pulverisé, Pollen piperis …   Thresor de la langue françoyse

  • pulverizer — purkštuvas statusas T sritis automatika atitikmenys: angl. pulverizer; sprayer; sprayer gun vok. Zerstäuber, m rus. пульверизатор, m; распылитель, m pranc. atomiseur, m; diffuseur, m; disperseur, m; gicleur, m; pulvérisateur, m …   Automatikos terminų žodynas

  • pulverizer — pulverizatorius statusas T sritis Standartizacija ir metrologija apibrėžtis Įtaisas skysčiui arba milteliams purkšti oro srove. atitikmenys: angl. pulverizer; sprayer vok. Zerstäuber, m rus. пульверизатор, m pranc. pulvérisateur, m …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • pulverizer — pulverizatorius statusas T sritis chemija apibrėžtis Įtaisas skysčiui arba milteliams purkšti oro srove. atitikmenys: angl. pulverizer; sprayer rus. пульверизатор; распылитель …   Chemijos terminų aiškinamasis žodynas

  • pulverizer — purkštuvas statusas T sritis fizika atitikmenys: angl. pulverizer; sprayer vok. Zerstäuber, m rus. пульверизатор, m; распылитель, m pranc. atomiseur, m; pulvérisateur, m …   Fizikos terminų žodynas

  • pulverizer — pulverize (also pulverise) ► VERB 1) reduce to fine particles. 2) informal defeat utterly. DERIVATIVES pulverizer noun. ORIGIN Latin pulverizare, from pulvis dust …   English terms dictionary

  • pulverizer — noun see pulverize …   New Collegiate Dictionary

  • pulverizer — See pulverizable. * * * …   Universalium

  • pulverizer — noun One who, or that which, pulverizes …   Wiktionary

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