Word Finder - blast

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A violent gust of wind.

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A forcible stream of gas or liquid from an orifice, for example from a bellows, the mouth, etc.

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A hit from a pipe.

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The continuous blowing to which one charge of ore or metal is subjected in a furnace

example

many tons of iron were melted at a blast

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The exhaust steam from an engine, driving a column of air out of a boiler chimney, and thus creating an intense draught through the fire; also, any draught produced by the blast.

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An explosion, especially for the purpose of destroying a mass of rock, etc.

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An explosive charge for blasting.

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A loud, sudden sound.

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A sudden, pernicious effect, as if by a noxious wind, especially on animals and plants; a blight.

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A good time; an enjoyable moment.

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We had a blast at the party last night.

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A promotional message sent to an entire mailing list.

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an e-mail blast; a fax blast

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A flatulent disease of sheep.

They say a blast at the Wanaka mine killed two.

Blast her when she falls.

She's having a blast.

Charlie turned to blast Brady's exposed back.

These two things are done simultaneously by heating and melting the ore in contact with coke, charcoal or anthracite, in the iron blast furnace, from which issue intermittently two molten streams, the iron now deoxidized and incidentally carburized by the fuel with which it has been in contact, and the mineral matter, now called " slag."

Simply aim the heat gun at the floor and blast a tile with hot air.

Once you get something into your head, dynamite couldn't blast it out.

It was plain that at the first revolutionary blast from without, or the first insurrectionary outburst from within, the " Bach System would vanish like a mirage.

The furnace consists of a shaft, circular (or more rarely rectangular) in plan, into which alternate layers of fuel and ore are charged, an air blast being generally injected near to the bottom of the furnace through one or more tuyeres.

The material for filling may be the waste from earlier workings stored in the spoil banks at the surface; where there are blast furnaces in the neighbourhood, granulated slag mixed with earth affords excellent packing.

When the coal has been under-cut for a sufficient length, the struts are withdrawn, and the overhanging mass is allowed to fall during the time that the workmen are out of the pit, or it may be brought down by driving wedges, or if it be of a compact character a blast in a borehole near the roof may be required.

There are blast furnaces in the neighbouring parish of Asfordby for the smelting of the abundant supply of iron ore in the district.

The great industries are coal-miningsome of the pits extending for a long distance beneath the firthiron-founding (with several blast furnaces) and engineering, but it has also important manufactures of salt, soap, vitriol and other chemicals.

The disk being started, then by means of a tube held at one end between the lips, and applied near to the disk at the other, or more easily with a common bellows, a blast of air is made to fall on the part of the disk which contains any one of the above circles.

Their blast furnaces produce 1,700,000 tons of pig-iron annually.

The value of its factory products in 1905 was $ 1 7, 1 4 6, 33 8 (1 4.3% more than in 1900), the more important being those of steel works and rolling mills ($4,528,907), blast furnaces, steam railway repair shops, cigar and cigarette factories ($1,258,498), foundries and machine shops ($953,617), boot and shoe factories ($922,568), flouring and grist mills, slaughtering and meat-packing establishments and silk mills.

From the mass thrown out by the blast, or loosened so as readily to come away by the use of crowbars, the men select and sort all good blocks and send them in waggons to the slate huts to be split and dressed into slates.

Where the blast has to be kept up for only a few seconds, this instrument is quite serviceable, but in longer chemical operations inconvenience arises from the condensation of moisture exhaled by the lungs in the tube.

The mode of blowing is peculiar, and requires some practice; an uninterrupted blast is kept up by the muscular action of the cheeks, while the ordinary respiration goes on through the nostrils.

The laboratory form in common use consists of a bellows worked by either hand or foot, and a special type of gas burner formed of two concentric tubes, one conveying the blast, the other the gas; the supply of air and gas being regulated by stopcocks.

Fletcher, in which the blast is heated by passing through a copper coil heated by a separate burner, is only of service when a pointed flame of a fairly high temperature is required.

Blowpipes in which oxygen is used as the blast have been manufactured by Fletcher, Russell && Co., and have proved of great service in conducting fusions which require a temperature above that yielded by the air-blowpipe.

The child-labour law of 1909 forbids the employment of children under eighteen years of age in blast furnaces, tanneries, quarries, in managing elevator lifts or hoisting machines, in oiling dangerous machinery while in motion, at switch tending, as brakesmen, firemen, engineers, motormen and in other positions of similar character.

Darwen is a centre of the cotton trade and has also blast furnaces, and paper-making, paper-staining and fire-clay works.

A screen of some kind to temper the fury of the blast is absolutely necessary.

The natural steps first of making it intentionally by putting such stones into his fire, and next of improving his fire by putting it and these stones into a cavity on the weather side of some bank with an opening towards the prevalent wind, would give a simple forge, differing only in size, in lacking forced blast, and in details of construction, from the Catalan forges and bloomaries of to-day.

If his bellows had only a single opening, that through which they delivered the blast upon the fire, then in inflating them he would draw back into them the hot air and ashes from the fire.

In time the smith learnt how to convert this unwelcome product into wrought iron by remelting it in the forge, exposing it to the blast in such a way as to burn out most of its carbon.

Indeed it was the use of water-power that gave the smith pressure strong enough to force his blast up through a longer column of ore and fuel, and thus enabled him to increase the height of his forge, enlarge the scale of his operations, and in turn save fuel and labour.

The indirect process once established, the gradual increase in the height and diameter of the high furnace, which has lasted till our own days, naturally went on and developed the gigantic blast furnaces of the present time, still called " high furnaces " in French and German.

It was then, in 1735, that Abraham Darby showed how to make cast iron with coke in the high furnace, which by this time had become a veritable blast furnace.

The next great improvement in blast-furnace practice came in 1811, when Aubertot in France used for heating steel the furnace gases rich in carbonic oxide which till then had been allowed to burn uselessly at the top of the blast furnace.

Neilson's invention in 1828 of heating the blast, which increased the production and lessened the fuel-consumption of the furnace wonderfully.

After the remarkable development of the blast furnace, the Bessemer, and the open-hearth processes, the most important work of this, the third period of the history of iron, is the birth and growth of the science and art of iron metallography.

This crude cast iron, called " pig iron," may be run from the blast furnace directly Ore FIG.

On its way from the blast furnace to the converter or open hearth furnace the pig iron is often passed through a great reservoir called a " mixer," which acts also as an equalizer, to lessen the variation in composition of the cast iron, and as a purifier, removing part of the sulphur and silicon.

The iron blast furnace, a crude but very efficient piece of apparatus, is an enormous shaft usually about 80 ft.

Moreover, this resistance increases much more rapidly than the height of the furnace, even if the rapidity with which the blast is forced through is constant; and it still further increases if the additional space gained by lengthening the furnace is made useful by increasing proportionally the rate of production, as indeed would naturally be done, because the chief motive for gaining this additional space is to increase production.

If by pre-heating the blast we add to the sum of the heat available; or if by drying it we subtract from the work to be done by that heat the quantity needed for decomposing the atmospheric moisture; or if by removing part of its nitrogen we lessen the mass over which the heat developed has to be spread - if by any of these means we raise the temperature developed by the combustion of the coke, it is clear that we increase the proportion of the total heat which is available for this critical work in exactly the way in which we should increase the proportion of the water of a stream, initially too in.

They are heat-filters or heat-traps for impounding the heat developed by the combustion of the furnace gas, and later returning it to the blast.

It will heal or blast, according as it is handled with or without due circumspection.

A shiver ran through the tree, and the wind sent forth a blast that would have knocked me off had I not clung to the branch with might and main.

It would be easy to cut their threads any time with a little sharper blast from the north.

These foliaceous heaps lie along the bank like the slag of a furnace, showing that Nature is "in full blast" within.

Delta Monitor puts an end to an icy blast of cold water when a washing machine is turned on or being scalded whenever a toilet is flushed.

So for a dazzling tile display in any room of the home get a blast from glass!

Often just a blast of the water hose will knock pests to the ground where they will be eaten by predators.

Then, get out on the court and have a blast!

Even the littlest rocker will have a blast there.

Kids will also have a blast in the hotel's outdoor playground and indoor arcade while adults can burn off some of their sweet indulgences at The Suites' fitness center.