US1000479A - Briquet and method of making the same. - Google Patents

Description

can also be utilized for ADOLF ZINIDLEE, 0F BERLIN, GERMANY.

BBIQUET AND METHOD OF MAKING THE SAME.

1,000,439. No Drawing.

Specification of Letters Iatent. Patented Aug. 15, 1911 Application filed October 29, 1908. Serial No. 460,139.

To all whom it may concern:

Be it known that I, Anonr ZINDLER, a subject of the German Emperor, and residin at Berlin, Germany, have invented a certain new and useful Briquet and Method of Making the Same, of which the following is a specification. I

The important bject of the present method is to utilize the briqueting powers of heated peat and to employ them for briqueting other substances which alone cannot be made into briquets, and in accordance .with the invention substances of the latter kind, such as anthracite or-stone-coal, brown coal or lignite which cannot bebriqueted,-sn1all coke, and the like such as coaldross and coal-slud e, are briqueted under pressure in suitab e molds after being heated with peat which is capable of briqueting. For example, 5% to of coke dust and the like which is frequently of little value and which can often be employed only with difficult can be mixed with peat and be briquete in the manner stated, and when the percentage of bitumen in the peat is high, even more than the .above amounts of coke dust and the like (San be utilized. In this manner large quantitles of a fuel of inferior value are converted into valuable heating material, for, owing to the addition of stone coal, coke dust and the like which have a higher calorific value than peat, the peat briquets are improved. Also the manufacture of briquets is facilitated in consequence, be-

cause the high percentage of water in the.

peat is diminished by mixin it with a considerably drier material wh1ch when dried in the air frequently containes 5% to 10% of water, on which account there is less water to be evaporated inthe drying procv ess which precedes the briqueting process. The heating of the peat is essential because, only in this manner is the bitumen made free and. capable of being used as an agglutinant. The briquetin power of peat %r1queting substances for smelting purposes.

For example, fine-grained ores, "alone or with fluxes, and likewise iron shavings, finegrained waste iron and the like, can .be mixed with peat, coke dust being also added, and briqueted, whereby materials which can be smelted with difliculty otherwise are made suitable for smelting purposes. Also peat can be heated itself and-be then mixed and briqueted with the substances which are to be brlqueted. The bitumen which is liberated on account of the heat then acts as an agglutinant.

The temperature at which the heating open tioi'i is carried out can vary between F. and 600 F. It is to be understood however that this process is not to be limited to any particular temperature since any heating which will be suflicient to liberate the bitumen is within the scope of this invention. I v

I am aware that peat has been solidified by steam-heating, grinding and subsequent steam-heating and simultaneous pressure, but in such a process no bitumen is liberated from the peat nor are non-briqueting materials mixed with it. I am also aware that it has been proposed to form briquets of fine coal and peat by compression without the employment of heat and consequently with: out the liberation of bitumen from the peat. Such briquets would crumble to dust immediately heat was applied to'them, if not before, and be quite unusable. Owing to the bitumen being liberated from the peat when mixed with non-briqueting materials and treated according to my improved method, durable briquets are obtained capable of resisting considerable degrees of heat and enabling otherwise non-briqueting, waste materials to be-efiiciently used. Q

What I claim as my invention and desire to secure by Letters-Patent is:

1. The herein described briquet composed of peat and a ,non-briqueting substance, such as'anthraoite coal or iron ore, united by the bituminous binder-naturally present in the eat.

' 2. T e method of briqueting peat and non-briqueting materials, such es anthracite In testimony whereof I afiix my signature coal or ironi ore, l:vhich consists in inifizing in the presence of two witnesses. the peat an nonriqueting materia eating the peat to a. temperature suincient to r I ADOLF N 5 liberate the bituminous binding material Witnesses:

therein, and forming the mixture into bri- HENRY HAsPnn, quet's.

WOLDEMAR HAUPT.

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