DE2162175B1

DE2162175B1 - SCRAPERS FOR BELT CONVEYORS, IN PARTICULAR FOR BROWN COAL OPEN-CABIN

Info

Publication number: DE2162175B1
Application number: DE19712162175
Authority: DE
Inventors: Josef 8460 Schwandorf Eberl
Original assignee: Bayerische Braunkohlen Industrie AG, 8460 Schwandorf
Priority date: 1971-12-15
Filing date: 1971-12-15
Publication date: 1973-04-12
Also published as: DE2162175A1; FR2163728A1; DE2162175C2; FR2163728B3

Description

wicht8 befestigt. Das Abstreiferband wird hierdurch kontinuierlich nachgezogen. Wenn sich das Gewicht 8 so weit senkt, daß es zum Aufsetzen kommt, wird der Seil- oder Hubzug 7 betätigt, so daß das Gewicht wieder frei durchhängt.weight8 attached. The wiper belt is thereby continuously tightened. When the weight 8 lowers so much that it comes to rest, the cable or hoist 7 is actuated so that the weight sags freely again.

Der Abstreif erhalter 3 ist mittels Federn 9 am Abwurfkopf 15 gelagert, um ein ständiges Anliegen des Abstreiferbandes an das Förderband zu gewährleisten. The Abstreif erhalter 3 is mounted by means of springs 9 on the discharge head 15 to a constant concern of the Ensure the scraper belt to the conveyor belt.

Gemäß dem zweiten Ausführungsbeispiel ist das Abstreiferband über eine weitere Umlenkrolle 11 geführt, so daß zwei Abstreifer hierdurch erzielt werden. Selbstverständlich könnten auch in gleicher Weise weitere Umlenkrollen vorgesehen werden, um die Abstreiferwirkung zu steigern.According to the second embodiment, the scraper belt is guided over a further deflection roller 11, so that two scrapers are thereby achieved. Of course, could also be in the same Way more pulleys can be provided to increase the scraper effect.

Der Abstreiferhalter ist hier als Rahmen ausgebildet, dessen Schmalseiten an den beiden Enden etwa in der Mitte der Schmalseitenfläche mit je einem Bolzen 12 — wie bei bekannten Doppelabstreifern — versehen sind. Ein Hebel führt von diesem Bolzen 12 über ein Gelenklager zu einer verstellbaren Druckfeder 13. Diese Druckfeder 13 bewirkt den ίο Anstelldruck des Abstreiferbandes.The wiper holder is designed here as a frame, the narrow sides of which are approximately at the two ends in the middle of the narrow side surface with one bolt 12 each - as in known double wipers - are provided. A lever leads from this bolt 12 via a pivot bearing to an adjustable one Compression spring 13. This compression spring 13 causes the contact pressure of the scraper belt.

In beiden Ausführungsbeispielen ist die Magazintrommel 1 in einem Winkel zur Bandlängsachse befestigt. In both exemplary embodiments, the magazine drum 1 is fastened at an angle to the longitudinal axis of the tape.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

COPYCOPY

Claims

1 2 The object of the invention is therefore to create a wiper of the type mentioned at the outset that wipes off the dirt cleanly, with the least possible

1. Scrapers for belt conveyors, especially interruptions of operations and hardly any war for the lignite opencast mine, which requires 5 processing effort.

Stripper belt mounted on a magazine drum This object is achieved according to the invention a detachment mounted on the ejection head, that the stripper tape with its obliquely closed holder by means of a pulling element to the cut end of the tape edge upright into the with Dirty belt surface is pressed against the wiper holder provided with an inclined strip characterized in that the ab- io is leading, the cutting of the tape edge end Streiferband (2) with its inclined cut corresponds to the incline of the inclined strip and the Nen tape edge end upright in the with a sloping strip the scraper tape to the soiled Inclined strip (4) provided wiper holder (3) presses belt surface and that is introduced at an angle is, the cut of the band edge cut band edge end the pulling element antenna end which the incline of the inclined strip engages 15.

speaks and the inclined strip (4) the stripper A further development of the invention is tied to the dirty belt surface in that the scraper belt over pulleys presses and that on the diagonally cut twice or more times to the soiled belt tape edge end the pulling element (8) attacks. surface comes to rest. This will make the

2. Wiper according to claim 1, thereby significantly increasing the wiper effect,
It is known from the French patent specification pulleys (11, 5) twice or more times on 1420 666, however, one of two rollers on the right and the dirty belt surface that is held to the left of the conveyor belt, endlessly circulating, the V-belt , the one with its long edge

3. Scraper according to claim 1 and 2, characterized in that 25 is intended to clean the conveyor belt. Marked for sticky conveyors, that the wiper holder (3) is good, the V-belt is inevitably in the middle Has cavities (14) for heating. Band zone bent, so that such a

The scraper does not lead to a satisfactory result in the case of sticky material to be conveyed.
30 Finally, according to the invention,

suggest that the wiper holder cavities for

has heating so that it can also be used effectively in winter.
The wiper according to the invention

There are scrapers for belt conveyors, in particular 35 is enough that the feed of the diagonally cut known for open-cast lignite mining, in which the scraper belt is perpendicular and transverse to the Stripper belt stored in a magazine drum conveying direction with wedge-shaped wear of the abrasion a scraper-scraper belt mounted on the discharge head takes place. By the pulling organ in behavior by means of a tension member on the soiled connection with the inclined strip, a constant belt surface is created is pressed. 40 lower contact pressure due to the wedge effect on the

So z. B. a short rubber scraper blade and a steady, slow draft gen the conveyor belt so that the scraper blade is rubberized according to the abrasion of the scraper belt Aiming via horizontally arranged carriers, whereby a clean wiping of the dirt rolls, which are actuated by weights, is guaranteed against the entire width of the conveyor belt. the conveyor belt vertically from the bottom to the top. was pressed (German utility model that the scraper does not require any maintenance and kei-1 977 378). causes all kinds of operational disruptions.

In the case of a similar embodiment, instead of the In the drawing, exemplary embodiments are the

short scraper rubber blade shown in a magazine invention,
Drum stocked scraper belt provided 50 It shows

(French patent specification 1378 871 and British Fig. a the side view of a first embodiment

Patent 618 355). example,

The disadvantage of these wipers is that the following Fig.b shows the front view of the first embodiment of the wiper rubber blade feed forced play in the direction of arrow A in F i g. a,
was carried out under the 'wiper rubber, whereby 55 F i g. c is the top view of the first embodiment with significant disturbances in wet and clayey För game in the direction of arrow B in F i g. a and
perform well. F i g. d and e a second embodiment.

Another major disadvantage is a magazine attached to the ejection head 15

in that the sticky material to be conveyed is particularly strong drum 1, a stripper tape 2 is rolled up, its stuck on the conveyor belt in its middle belt-free end on a scraper holder 3 with oblique face. As a result, bars 4 are out. The previously mentioned Streifergumrniblatt across the entire width of the free end according to the angular position of the oblique lines has been worn to different degrees. On the other hand, trim (Fig. B). Tailored to this the advance of the scraper rubber blade over the end, which is guided over a pulley 5 the entire range the same. As a result, a clamping device 10 engages which separated strong contact pressure, which is un- connected with a tension cable 6. This will even cleaning of the conveyor belt - guided over a deflection roller and is under Introduced, circuit of a cable or hoist 7 on a device