DE534796C - Stream channel washer with channel cross-section adjustable by auxiliary walls - Google Patents

Description

Flume washing with a channel cross-section that can be adjusted using auxiliary walls The invention relates to an improvement of the known flow troughs for washing Coals and other minerals in which the products are deposited in an or several horizontal or slightly inclined gutters under the effect of a flowing Liquid flow are separated.

In order to sort the products as completely as possible, it is from Meaning that the cross-section and the dimensions of the channel are as close as possible approach certain favorable limit dimensions, which are related to the nature of the products, the dimensions of the treated products, etc.

So it may be desirable to use the interior in the course of the washing process Change the cross section of the gutter in order to accommodate the different nature of the to adapt treated products. The regulation of the internal cross-section for stream washes by means of internally built-in, adjustable in position, in order to be arranged above the floor Hinges swiveling auxiliary surfaces as well as the gradual change of the cross-sections of the individual inner compartments by adjustable side panels or insert pieces from different cross-sections, the clear width of which differs from the higher lying Rinnenteüen according to the deeper ones in size; mrnt, is already known. Also is the adjustment of the auxiliary surfaces by mounted in the discharge device, operable from the outside Adjusting screws no longer new.

The invention aims to regulate the entire usable width of the Channel through connected auxiliary walls that can be displaced on the channel bottom, which are from operated outside the channel by mechanical actuators without disrupting operation can be avoided, whereby changes in the formation of the bottom of the gutter avoided will.

In the drawing are some embodiments of the subject of the invention shown.

Figs. I and 2 show a section and a plan view of a flow trough with double-sided regulation of the width of the cross-section to be carried out from the outside.

Fig. G shows a schematic longitudinal section of an embodiment an inner piece in which the control of the usable flow channel cross-section is achieved by a special device of several movable auxiliary walls.

Fig. 4. shows a schematic longitudinal section of a flow channel section, in which a movable auxiliary wall made of two overlapping in the longitudinal plane Divide is formed.

Fig. 5 shows in section another embodiment, after which one end of an auxiliary wall part from the adjacent end of the following part is covered.

Referring to Figures i and 2 is the width regulating device the channel i or a section of the same from two perpendicular auxiliary walls 2 formed. Each of these auxiliary walls: 2 rests with a lower one bent at right angles Part 3 on the inboard floor. The auxiliary walls 2 can transversely to the channel i by means of outside the gutter attached screws q., which through internally threaded holes and connecting piece 5 of the corresponding side wall are adjusted. The auxiliary walls 2 are at point 6 with a second plate 7, the upper edge of which is against the inside the channel i creates, articulated. The arrangement of the adjusting screws q. outside the channel, the internal cross-section can be used without interrupting the operation of the laundry be changed.

In Fig. 3 an arrangement is shown that the favorable special conditions to obtain a bed of dense products upstream of each slot Fulfills. This can be achieved by appropriately adjusting the individual auxiliary walls The bed of dense products must be made sufficiently thick and uniform to prevent that above this bed moving light particles with the dense particles are discharged into the discharge pockets, with the separation of the light particles of the heavier required changes in the speed of the entrainment current is achieved.

This arrangement has the following appearance: From A to B as a result of the tapering of the internal cross-section, increasing growth of the layer of Heavy products moving on the inland floor, thereby increasing the speed of the flow, consequently prevention of the settling of the light ones. Parts.

Uniform thickness of the layer of dense products from B to C as a result of the internal cross-section remaining the same, resulting in a constant flow rate. In the place of the discharge slots there is a layer of heavy products of uniform thickness, and since those moving in the upper zones of the channel i light products are guided over the discharge slot, is achieved that only the heavy ones moving above this slot at the bottom of the channel i Products are discharged into the delivery pockets.

From C to D progressive increase in the internal cross-section and thereby Decrease in current speed. As a result, a build-up of dense products, which were previously taken into the upper zone of the gutter.

From D to E regulation of stratification due to uniformity of the internal cross-section and staying the same. the current speed on this all the way.

From E to F, thickening of the layer of dense products as a result of tapering of the cross-section favoring the separation of the dense particles entrained light particles as a result of increasing the flow velocity.

In Fig. Q. an embodiment is shown, according to which the auxiliary walls the inland route in question are formed by two parts 2 and 2 ', the can slide on top of each other so that they can, for. B. from the fully extended position can move into the dot-dash position. Such an arrangement can e.g. B. be appropriate if you consider the length of the inland route on which the cross-section should remain uniform, wish to regulate. Depending on the needs, it is possible To use panels or movable auxiliary walls, the dimensions of which are regulated in this way can that the internal cross-section can be changed appropriately in each case.

In order to avoid that parts during the operation of the auxiliary walls of the goods between the two ends of the plate, you can use one end of the plate partially overlap through the end of the abutting plate, e.g. B. in Fig. 5 is shown. In this embodiment, the ends of two are butted together Auxiliary walls are cut out so that they partially overlap.

In the case where the auxiliary walls are removed by adjusting the screws q. move to another position and consequently lengthen from C to D (Fig. 3) or shorten, the end of one auxiliary wall in the double-walled one The end of the adjacent auxiliary wall.

Claims (3)

PATENT CLAIMS: i. S trough washing for the preparation of coals and other minerals with an internal cross-section adjustable by auxiliary walls, thereby characterized in that the useful width of the channel between two consecutive Discharge slots or above the first discharge slot through oblique and parallel or only parallel to the inner wall on the inner floor displaceable contiguous Auxiliary walls is changeable, known from the outside operable mechanical actuators are moved 2. gutter washing according to claim i, at which the usable width of the channel, upstream of a discharge slot beginning until close in front of it gradually tapers to close behind it runs unchanged, then increases progressively, then invariably again for a certain distance to stay, characterized in that 'the internal cross-sections through -on the internal floor movable contiguous auxiliary walls are adjustable. 3. Stream gutter waterway to Claim i and 2, characterized in that the auxiliary walls by vertical or in their upper part bent outwards at an angle, overlapping one another coherent plates are formed.