DE277725C

DE277725C -

Info

Publication number: DE277725C
Application number: DENDAT277725D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Die bisher zum Entwässern gewaschener Feinkohle benutzten Schwemmtürme geben die entwässerte Kohle durch eine Bodenöffnung ab, d. h. dort, wo sie am nassesten ist. Um daher eine bis auf einen niedrigen Prozentsatz Wassergehalt entwässerte Kohle zu erhalten; muß sie in den Schwemmtürmen übermäßig lang verbleiben, weshalb für eine Kohlenwäsche von gegebener Tagesleistung die Anzahl derThe water towers previously used to dewater washed fine coal give the dehydrated coal through a bottom opening from, d. H. where it is wettest. Around hence obtaining coal dehydrated to a low percentage of water content; it has to stay in the water towers for too long, which is why it is used for coal washing of the given daily output the number of

ίο Schwemmtürme reichlich bemessen sein muß. Die hohen Anlagckosten einer Kohlenwäsche gelangen aber keineswegs mit der Anschaffung der vielen Schwemmtürme zum Abschluß, sondern werden durch die zur Verteilung der gewaschenen Feinkohle auf sämtliche Schwemmtürme benötigten Vorrichtungen, sowie durch das zum Aufstellen der ■ Türme und Vorrichtungen erforderliche außerordentlich große Bodenareal noch nicht unerheblich gesteigert.ίο water towers must be amply dimensioned. The high investment costs of a coal washing machine do not come with the purchase of the many water towers to conclude, but are used by those to distribute the washed fine coal on all water towers required devices, as well as through that for erecting the towers and ■ devices required extraordinarily large soil area not insignificantly increased.

ao Man hat deshalb bereits vorgeschlagen, zwi-: sehen Wäsche und Kohleturm (Bunker) eine Entwässerungsvorrichtung einzuschalten, die die Feinkohle in solcher Weise nach oben fördert, daß sie sich unterwegs entwässern müß.ao It has therefore already been suggested between: see laundry and coal tower (bunker) one To switch on the dewatering device, which conveys the fine coal upwards in such a way, that she has to drain herself on the way.

Die Erfindung besteht in der Schaffung einer neuen Einrichtung dieser Art, die große Massen von Feinkohle zu bewältigen vermag. Zu diesem, Behufe.wird die Kohle in einem Kanal geführt, dessen gegenüberliegende Wände von parallel geführten Trums endloser siebartiger Förder-The invention consists in providing a new establishment of this type, the large masses of fine coal is able to cope with. For this purpose the coal is led in a channel, the opposite walls of parallel strands of endless sieve-like conveyor

bänder gebildet werden und der von der Auflaufstelle der Kohle auf das eine Bandtrum in seinem Verlauf hochgeschwenkt ist. Durch die fortdauernde Bewegung der Bänder imribbons are formed and that of the contact point the coal is swung up on one belt strand in its course. By the continued movement of the ligaments in the

selben Richtungssinne und durch die Hochschwenkung an der tiefsten Stelle des Kanals wird die Kohle infolge der Reibung gegen die Bänder mit mäßiger Geschwindigkeit hochgehoben, so daß auf diesem Wege das Wasser abfließt. Die Zeichnung zeigt ein Ausführungsbeispiel. Um bei diesem einen Abschluß des Kanals nach den beiden durch die Förderbänder nicht gedeckten Seiten zu bewirken, empfiehlt es sich, eines der Bänder mit Scitcnblechen auszurüsten, die bis an das andere Band heranreichen und die sich gegenseitig so weit überlappen, daß an den Umlenkstellen, des Bandes keine offenen Lücken entstehen, durch die die Kohlen hindurchfallen würden.In the same sense of direction and by pivoting it up at the lowest point of the channel , the coal is lifted up at a moderate speed as a result of the friction against the belts, so that the water flows off in this way. The drawing shows an embodiment. In order to effect a closure of the channel on the two sides not covered by the conveyor belts, it is advisable to equip one of the belts with metal sheets that extend up to the other belt and that overlap each other so far that at the deflection points, There are no open gaps in the belt through which the coals would fall.

Auf der Zeichnung zeigt:The drawing shows:

Fig. ι einen senkrechten Schnitt der neuen Entwässerungsvorrichtung,Fig. Ι a vertical section of the new drainage device,

Fig. 2 den Längsschnitt eines Teiles des Nebentransportbandes,Fig. 2 is a longitudinal section of part of the Secondary conveyor belt,

Fig. 3 einen ähnlichen Schnitt eines Teiles des Haupttransportbandes, undFig. 3 is a similar section of part of the main conveyor belt, and

Fig. 4 den Grundriss des letzteren; teilweise im Schnitt, währendFig. 4 shows the plan of the latter; partially on average while

Fig. 5 den Querschnitt beider Transportbänder vor ihrem Zusammentritt zur Bildung der endlos wandernden Röhre darstellt.5 shows the cross section of the two conveyor belts before they come together to form the endlessly wandering tube.

Die Entwässerungsvorrichtung besteht im wesentlichen aus den beiden zusammenarbeitenden Förderbändern-a und b, von welchen ersteres das Haupt-, letzteres das Nebenförderband bildet. Das Band α ist derart mit seinem oberen Ende über polygonale Antriebsscheiben c, und mit seinem unteren Ende um gleichartig ausgebildete Wendescheiben d gelegt, daß sein Unteres Ende in wagerechter Richtung dicht unter der Mündung des Aufgabetrichters e vör- ! beistreicht. Das Band b ist zwischen diesemThe dewatering device consists essentially of the two working conveyor belts - a and b, of which the former forms the main and the latter forms the secondary conveyor belt. The band α is placed with its upper end over polygonal drive disks c, and with its lower end around identically designed turning disks d that its lower end in the horizontal direction just below the mouth of the feed hopper e vör-! added. The tape b is between this

Claims

The starting strap and the band a are attached in such a way that the opposite strands of both bands always run at the same distance from each other. For this purpose, the inner strand is tied over the square drive shaft / "laid belt" almost over its entire length through the rail g and, in a similar manner, the inner strand of the belt a through the rail h .

The space between the two bands is formed into a channel R by being delimited on all sides by the perforated bottom plates i and the side walls k of both bands, whereby the side walls of band b , which only consist of angular iron blades, come between the lower side walls of band α . Both conveyor belts are made up of individual links with connecting bolts Γ below

"O through Gclenkstäbe m at the right distance from each other are maintained. These hinge rods are attached to the belt b outside and to the belt α between the rollers 11 and are used in the FIGS. 2 to 5

apparent way at the same time to support the bottom plates i and the side walls k, which are connected and stiffened by means of angle iron o, filler or protective plates ^, and cross ribs q. At the side walls of the band ' α there are also: the inner angle iron tabs r and the angle iron ribs s and s' on the outside of the side walls of every second link to reinforce the side walls. .'V;'.-

The mode of action is as follows: \

After both belts are given the same speed by the lay-up t and the regulating slide u of the feed hopper e is set, the fine coal to be dewatered passes over the inner run of the main belt a and is taken along by this. The secondary belt δ running at the same speed then lies with its inner run against the upper side of the fine coal body emerging from the funnel e , which is mainly formed in the arc of a circle. Part of the channel occurring soil friction is increased. The cross-section of the channel is here despite the pressure exerted perpendicular to the perforated bottom plates by the

'Rollers' running on the guide rails g and h are secured, while the ground friction prevents the raised coal columns from stepping back illegally. This loses the water it has carried on its way to the dispenser and the operation of the device must be regulated so that the water has enough time to drain. The water, which mainly emerges through the perforated bottom plates, flows into the sewage sump S along with the sludge that is carried along. '

When the coal has reached the upper end of the channel R , it steps back from the band b , which rises even further vertically, and is carried along by the band α , the side walls of which overlap in such a way that they also form uninterrupted guide walls at this point . The coal now passes over the channel and falls into the coal bunker w, from which it is loaded into waiting trucks or railroad cars as required through the funnel-shaped floor. The outer run of the belt α is fed to the turning discs d with the help of the guide rails \ x, y and 2 and, as the inner run of the same belt, takes part again in the drainage of fine coal that has meanwhile been washed ashore.
j Should all of the fine coal be removed from channel i for any purpose? be removed, iso is.ein insert sheet 7 between the bars attached to the side walls k of the main band α at a given distance from one another, so that despite the lack of a floor. friction ensures the rise of coal

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■ PATENT AN SCruc η:

85

Device for dewatering fine coal during upward conveyance, characterized by sieve-like conveyor belts (α, δ), which form a closed channel with their strands extending vertically up to the discharge point, in which the Feiri 'coal is held by friction and which it is held by means of the turning point of the a belt (b) bypassing, gradually merging into the vertical running direction strand. * of the opposite belt (a) is fed.

1 sheet of drawings.