PL7953B1

PL7953B1 - A method of preventing sticking and sintering of the load in the process of continuous charring.

Info

Publication number: PL7953B1
Application number: PL7953A
Authority: PL
Filing date: 1925-11-16
Publication date: 1927-11-30

Description

Pierwszenstwo: 13 stycznia 1925 r. (.Niemcy).Jak to powszechnie wiadomo, liczne bardzo procesy zweglania lepkiego, ciasto- watego lub brylowego ladunku, albo ladun¬ ku wykazujacego podczas ogrzewania sklonnosci powyzsze, nie daja sie przepro¬ wadzic wcale lub z wielka tylko trudno¬ scia w sposób ciagly w piecach obrotowych, lub retortach pionowych czy pochylych.Szczególnie trudnosci nastreczaja sie przy wytwarzaniu tak zwanego wegla wysoko- aktywowanego, stosowanego do absorbcji i odbarwiania.Odnosny proces prowadzi sie zazwyczaj w ten sposób, iz dowolne tworzywo lub mie¬ szanine, zawierajaca tworzywo podobne, jak maka drzewna, torf, wegiel brunatny, kosci mielone lub podobny materjal mie¬ sza sie i przepaja substancja wlasciwa, jak kwasy, roztwory soli, alkalja lub wprost woda, poczem mase poddaje sie zweglaniu w temperaturze okreslonej. Mieszaniny rze¬ czone, zawierajace zwykle stosunkowo lek¬ kie ciala roslinne, jak np. maczke drzewna, tworza zazwyczaj z jakimkolwiek roztwo¬ rem mase wykazujaca wielka sklonnosc do spiekania sie. Zweglanie wiec nalezy zwy¬ kle prowadzic w piecach poruszanych od¬ recznie, retortach i aparatach podobnych.Tylko w nielicznych szczególnie pomysl¬ nych wypadkach procesy podobne mozna przeprowadzic w piecach obrotowych.Obecnie okazalo sie, ze ladunek mozna zabezpieczyc od spiekania sie i sklejania, poddajac mieszaniny podobne stlaczaniu, np. przepuszczajac je przez prase, która z materjalu tego wytwarza tasmy, albo przezprase wytwarzajaca brykiety, lub cegielki.Prosty ten srodek umozliwia przeprowa¬ dzanie procesów podobnych w piecach ob¬ rotowych lub w retortach zasilanych two¬ rzywem, w sposób ciagly. Przesypujac po¬ nadto wytlaczana przez prase mase nie¬ znaczna iloscia niezmieszanego suchego cia¬ la roslinnego, zweglac mozna natenczas w piecu obrotowym nawet najbardziej lepkie mieszaniny bez obawy zatkania lub przy¬ wierania materjalu do scianek. PL PLPriority: January 13, 1925 (Germany) As is commonly known, numerous very sticky, doughy or lumpy charring processes, or a charge showing the above tendencies during heating, cannot be carried out at all or to a great extent. only continuous difficulties in rotary kilns, or vertical or inclined retorts. Particularly difficulties arise in the production of so-called highly activated carbon, which is used for absorption and decolorization. The process is usually carried out in such a way that any material or material is used. Shanin, containing a material like wood flour, peat, brown coal, ground bones or the like, is mixed and permeated with a specific substance such as acids, salt solutions, alkaline or even water, and the mass is then carbonized at a certain temperature. Treatment mixtures, usually containing relatively light plant bodies, such as, for example, wood flour, usually form a mass with any solution which is highly sintering. Carbonization, therefore, should usually be carried out in hand-operated furnaces, retorts and the like. Only in a few particularly successful cases such processes can be carried out in rotary kilns. It has now turned out that the load can be protected against sintering and sticking by subjecting mixtures similar to congealing, for example by passing them through a press which makes tapes from this material, or by a press for making briquettes or bricks. This simple means allows similar processes to be carried out in rotary kilns or in retorts fed with plastic in a manner continuous. Moreover, by pouring the pressed mass with a small amount of unmixed dry vegetable matter, even the most viscous mixtures can be charred in the rotary kiln without clogging or sticking to the walls. PL PL

Claims

1. Patent claims. A method of preventing sticking and sintering of a sticky, pasty or sticky charge during heating by a continuous carbonization process, nip. in a rotary kiln, characterized by the fact that the charge in question is subjected to shaking before being placed in the charcoal apparatus.

2. The method according to claim 1, characterized by the fact that the load, before it is placed in the charcoal apparatus, collapses in the belt press into uniform shapes.

3. The method according to p. 1 and 2, characterized by the fact that the shapes obtained in this way are poured before carbonization with the very dry material of which the cargo is composed. I. G. Farbenindustrie A k t i e n g e s e 11 s c h a f t, Deputy: M, Skrzypkowski, patent attorney. Print by L. Boguslawski, Warsaw, PL PL