CS139392A3 - Shifting device of filter press plates - Google Patents

Abstract

A pilot finger (36) is mounted on a shifting trolley (28) having reversible drive (30), which pilot finger, at the beginning of each forward travel, can be pivoted behind the front filter plate (2) which has not yet been shifted, in order to carry the latter along. A pilot control member (70) can latch onto the pilot finger (36) in order to hold this in an idle position in which the shifting trolley (28) can be moved forwards past the filter plates (2) without carrying the latter along. Likewise mounted on the shifting trolley (28) is a follow-up finger (56) which, at the beginning of a forwards travel, can be pivoted behind the filter plate (2) second from the front which has not yet been shifted, in order to carry the latter along. This pivoting is actuated by a follow-up control member (80), which in a final phase of the pivoting of the pilot finger (36) behind the front filter plate (2) which has not yet been shifted, exerts a torque in the pivoting direction on the follow-up finger (56) arranged behind this. The pilot control member (70) is pretensioned so that in the unlatched state it exerts a torque on the pilot finger (36), which completes its pivoting behind the front filter plate (2) independently of its resistance to motion. This ensures that the follow-up finger (56) is also reliably pivoted via the follow-up control member (80). <IMAGE>

Description

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Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shifting device for a filter press filter according to the essential patent claim 1.

Background Art

A shunting device of this kind, known from DE 374 2363 C1, has a control pawl mounted on a shunting carriage with a reversible drive, which engages at the end of each drive back behind the uppermost not yet moved filter plate, which can be carried forward by the next. and at the same time executes an actuating movement due to the filter plate placing the movement resistor. Several subsequent latches are mounted downstream of the control latch at distances greater than the filter plates.

These are spontaneously in their rest position, in which they can move forward when they are left:}! rearwardly around the filter plates, without being able to do so. with subsequent tumblers, controls that control the movement; the control pawls ensure that the subsequent pawls engage the other filter plates that are not yet pushed in. Therefore, each filter forward plate can be driven and separated by a plurality of filter plates on the forward carriage. In this limitation, the operation of the control pawl will be such that it fits behind the uppermost not yet moved filter plate and limits the control movement to the subsequent pawls. As a result, only the first pusher carriage is carried by the pusher carriage if desired. filter plate. In this known shifting device, the actuating movement of the control latch may not, in fact, occur to erect subsequent latches when the first filter plate not yet moved is moved so lightly, or the prematurely dispensing filter cake is moved forward that the control latch does not provide sufficient resistance to force the control latch to erect completely.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a sheathing of the filter plates further so as to ensure that even one or more additional filter plates can be supported, even in the case of an extremely light shifting or premature shifting of the filter cake.

Starting from the shifting device of the above-mentioned method, the object of the invention is solved by the fact that the control actuating element is thus biased, that in the extended state it acts on the control latch by a torque which terminates the front filter plate independent of the present one. motion resistance ........ In this way, it is ensured that, whenever more than one filter plate is required to be moved forward when the carriage is moved forward, the control latch does not only rise to the first, filter plate, but moreover, it also has a sufficient control motion to erect a subsequent latch or follow-up latches. dek. . ,. , ·; Λ '· ....... ~

Another preferred development of the invention is the consequential considerations. BRIEF DESCRIPTION OF THE DRAWINGS An exemplary embodiment of the invention will be explained with reference to the accompanying drawings, including further details

It is depicted

FIG. 1 is a side view of the filter liau, with the shifting device of the invention, in the initial operating position

FIG. 2 is an enlarged view of FIG

FIG. 3 shows the same cut-out in a second operating position which follows the position shown in FIGS. 1 and 2

Fig. 4 shows the same cut-out in the rest position of the shifting device. 5 same cutout when one single filter and -5 - /

FIG. 6 is the same when cleaning the filter plate. An embodiment of the invention

Referring now to FIG. 1, a plurality of filter plates 2 are provided with each other. Each filter plate has a front face 6 and a rear side 6, and a pair of side straps g. The filter plates are hinged in a guide stand 10 which essentially consists of a pair of front stands 12 with a front traverse 14. a pair of rear stands 16 with a rear beam 18 and a pair of beams 20. The beams 20 are arranged in a horizontal plane parallel to each other between the two beams 11 and 18. The filter plates are supported by the intermediate beams 20 and slidably mounted thereon by the side beams 8. The space in which the filter plates 6 can be moved; on one side, vjobr.l on the left, rear traverse 18, and on the other side, on the right-hand side plate 22, the plate 22 is also slidable in the longitudinal direction of the beams 20. and connecting the piston rod to the piston-cylinder unit 28, of which the piston-cylinder unit. is arranged parallel to the; the beams 20 and is mounted on the 14th version. The filter plate is then replaced with a filter plate. in FIG. packs the unit 24 between the front plate 22 and the rear traverse 18. Once finished, the plate is closed. filtration, the unit 24 drags the front filter plate into the front end position, in Fig. 1, thereby forming between the filter plate 2 mounted on the faceplate 22 which is only arranged on the back side 6 for filtering and the subsequent filter plate 2 which then follows it will be used to move the additional filter plates so that the filter cakes that have formed between them can be dropped, and the filter pads may be washed if necessary.

A pair of horizontal rails 26 are mounted on the pairs of racks 12 and 16, which extend over the beams 20 and are evenly aligned with them. 4 - the flanges are driven by the drive 30 and can move on wheels 2 $ forwards and backwards. The thrust 30 forms an electric transmission motor which always reverses when the particular torque is exceeded, i.e. it turns the direction of travel of the shunting carriage 28 Two parallel columns 32 are projecting downward from the carriage 28, and one support plate 34 is fixed at each lower end thereof. The two support plates 34 are each arranged in a vertical plane outside the beam 20, in the form of an elongated rectangle whose longitudinal direction is parallel to the beams 20. A control pawl 36 is mounted on the bearing plate 34 by means of a bearing 38 whose axis is perpendicular to the support plate. in the drawings, only one of the two plates 34 &apos; including the control latch mounted thereon and other associated components is visible, the latches 36 ' as well as the other parts which are on one side of the filter press in the following, in the following. number. _. · ,,. The control latch has a follower tab 40 which is shown as standing at an erect control latch at each working cycle. side arm J3 of the reversing plate \ t the driving surface 40, the control latch 36 turns to an end 42 'which is in the rearward direction of its upright position. Also, in a raised position, a projection 44 is provided on the control pawl, which, together with the stop and bearing pin 46 fixed on the support plate 34 and parallel to the bearing axis 38, prevents it from tipping backwards.

A protrusion 48 is arranged in the erect position before and somewhat of the bearing 38 of the control latch portion 36 &apos;. The end of the spring 32 is suspended on the protrusion 43, the other end of which is a pin pin located further forward on the support plate 34. a position in which it is erected only to such an extent that it can be grasped by some of the side arms 30 and erected completely thereon when the displacement car is moved forward. 5 - which serves to tilt the control latch 36 after all the filter plates 2 have been moved.

On each of the two support plates 34, a first successive pawl 56 is pivotally mounted behind the control pawl 36 in the bearing 58. In the example, four successive pawls 56 are foreseen on both sides of the filter press. The subsequent pawls 56 are identical to each other. with the control pawl 36a having a drive platform 60, an end 62 and a protrusion 64, a protrusion 64, together with a stop and bearing pin 66 positioned on the carrier plate 34, positions the subsequent pawl 56 at which the carrier tab 60 is approximately perpendicular and end 68 is basically facing backwards The latch 56 is arranged. . a protrusion 68 in the form of an axially parallel pin. / Somewhat-before. the bearing 38 is on the carrier, the female driver 34 is rotatably tightened by the actuating control element 70 «on this, they are formed downward in the front. The control element 70 has a rearwardly extending extension 76 which terminates below the resting position of the first follower latch 56. on the 78th, which connects the control control element 3 to the support plate 34, has a constant tendency to rotate the rear end of the control element upwardly. This results in the control element 70 normally forming, that is, in the position of FIG. 4, raising the torque on the control control unit 36. In the rest position of FIG. 4, however, the projection 44 fits into the recess 74 so as to prevent the control latch from erecting. In doing so, the end 42 of the control latch 36, as well as its protrusion 44, lie below the upper edge of the support plate 34 ', which is again at a small distance below the lower edge of the side arms 8 of the filter plates. when the vehicle is in the forward or rearward position, it may strike the lateral arms 8 in the idle position. - 6 -

The same is true for successive latches 56 which, by virtue of their own weight, are self-limiting in their position. The idle position of the foremost latch 56 is determined by the stop and bearing pins 66; 56 is always one of the pins 66.

On the stop pin 46 for the control pawl 36 and on the stop pin 66 for the first and second successive pawls 56, one rigid follow-up control element 80 is mounted rotatably on the support plate 34. Each successive control element 80 has a sloping surface 82 at its rear end and on it Further, each follow-up control member has a backward extension 86 which extends below the next downstream pawl 56 so as to be able to pivot it from the rest position upwardly, causing the spring 88 ' attempts to rotate the respective follow-up control member 8 through its rear end upward. The blades 82a, 84 of each successive actuator member 80 act with the protrusion 68 closest to the rear of the subsequent pawl 5.6 as follows; If the subsequent pawl is in the rest position, the inclined face 82 of the respective follow-up member 80, 80 of the protrusion 68 so that the spring-formed force extends through the bearing axis of the respective subsequent pawl 56 and therefore, no torque is generated on this first. When the actuator extension 76 extends some of the first subsequent latch 56 from its rest position, the corresponding first actuator 80 first forms a straight surface 84a with its oblique face 82 erecting a first moment. the following latch 56. In this sense, the same applies to the second and third subsequent latches 56,

Near the front end of the support plate 34 is at a considerable distance in front of the bearing 3.8. a control pawl 36, on the axis parallel to the bearing axis 38, a pawl 90 is rotatably supported.

A front end of the spring 92 is suspended on the approaching pawl 90, which is hinged on its support plate 34 by its rear end, and keeps trying to hold the pawl in the upper end position shown in FIG. In this position, the approaching pawl engages to the rear, the female backplate 96 formed by it, while driving the pusher carriage 28 backwards, strikes the front side of the arm 13 of one of the filter plates.

On the upper flanges of the rails 26 there is a cleaning carriage 100 which can be coupled, if necessary, for a forward and backward ride with the displacement carriage 28.2 of the cleaning carriage 100 sticking perpendicularly downwards a pair of columns 102, on which the nozzle set 10 and 42 are guided up and down. A cam 106 is mounted on the lower end of the columns 102, on which a sloping slab 72 of the control actuator 70 drives when the cleaning carriage 100 arrives at the carriage 28 or vice versa. y

On the "two" sides of the faceplate, a deflection coil 108 is attached, which holds the pawl 90 in a calm manner when the pusher carriage is so far ahead that no filter plates with its side pawl 108 are attached. arms 8 can not act on the approaching latch. ... / ... - On both sides of the traverse of the l8 is l7Wheat ll0..Λ ^ ^ yp ina ^ j yp yp yp yp yp λ λ λ λ λ λ λ λ λ λ λ λ In the present invention, one " one ', &lt; tb &gt; &lt; tb &gt; &lt; tb &gt; &lt; tb &gt; ______________________________________ &lt; tb &gt; the lever lever 116 mounted on the support plate 34 Both the folding levers 116 ee together operate the hand fifth 118 which can be adjusted either to a single shift or to a group shift of the filter plate 2 which can be fully retractable in each position of the carriage. on his-back h the ends are supported backwardly by a protruding support 120 located on the rearward of the racks.

The described apparatus works as follows: Assume that the filter press is open after filtration, i.e. the faceplate 22 is moved completely forward, and in the first working cycle of the pusher, the first group I of the five filter plates has been moved forward. the second group II, again with five - 8 - filter plates 2, was moved forward and in this case the first filter plate of the second group II of the filter group of the first group was pressed closely together with the second group filter plates having the corresponding distance between the second and second cycles. bearings 58 and the spacing of the front bearing 58 from the bearing 38, other filter plates, among them the following group III of five filter plates 2, remained tightly adjacent to the bed.

A further duty cycle of the shifting device has begun in that the shifting carriage 28 is retracted. In this case, the approaching pawl 90, which deflects the rail 108, is pressed down to such an extent that with its back pad 98 it slips at the lower edges of the side arms 8. of the filter plate 8 along the first and second groups (I and II. The length of the back plate 98 is at least as large as the spacing of the bearings and therefore the approaching pawl 90 can be pivoted back by its end top position as determined by the stop 94 when it has passed over the second and second columns of the second second and second control bars 38 of the barrel of the sunshield. "W j namedf ilt r chic a k j j e V jj jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj" - 1 ' 1 · »«.,. ··· * fl,. ''? ”It I It, # ►». J! Next to the picture, clockwise- pressed down / so that it cannot hang on them. 4

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Also, when the control latch 36 passed the arms 18, the first. filter plate groups not yet assembled. third - group III, and had the chance to miss the next following filter plate. J2, the approaching pawl 90 strikes the front face 98 of the front side of the uppermost, previously cushioned filter plate 11. The pusher carriage stops and its drive 30 moves. With the now forward displacement, the control plug penetrates deeper into the space between the arms of the first and second foremost filter plates of the third group III. With its "end 42", it abuts the front wall of the arm of the second filter plate so that it acts as a lever on the arm of the first filter plate moves it forward and separates it from the second plate of the group III. In this case, the control pawl 36 performs in turn - 9 - a control movement in the form of a continuous pivot movement until its projection 44 strikes the stop and bearing pin 46 Raising the control latch 36 supports the control actuator 70, which, by the action of spring 78, forms a flattening adjacent to the rear recess 74 on the protrusion 48 of the upwardly extending force that acts on the control latch 36 more strongly than the counter acting the moment generated by the spring 50 adjusting latch 36. Therefore, the control latch in the ka every case fully erected, t.j.až of the stop projection 44 on the stop, the bearing pin latch 46.Šidící therefore completely erect in the case that the filter plate 2 to be displaced, no resistance movement. A control pad 70 adjacent to the recess 74 and a control boss 48 cooperating therewith. the control element extension 76 is shaped such that the extension only rotates the first subsequent latch when it is already under the arm 8 on which it is located. The same is true for the next-follow latches. In this way, the latch is set to the second latch, and the first lattice plate is the third lattice plate. Group III. already drifting drives-> · .., »> ** _- <_: _ · _: _____: _: _. The following latches are erected successively in the intersection between the arms 36 of the second and fifth filter plates, respectively, by means of the latch 36,

Skunlnv ΤΤΤ'.ΦβΤτΛηΛβ nrtli-ffhn rsneiinmra (* "f1in CG - 1 1 '·» «« rw jjø * * ** w * w ¥ iv * »jir wvww *** v» ww ** vv ar w * forward : five filter plates moved 2.

The direction of movement of the shunting carriage 28 is reversed when the uppermost filter plate 2 of the third group III, which is moved by the uppermost filter plate 2, moves against the rearmost filter plate of the group II and the filter plate of this group II, so that the displacement resistance does not increase strongly At the same time, the approaching latch 9G is submerged under the arm 8, the last of the previously displaced filter plates can be erected first when it finds between the shoulders 8 the next time the pusher carriage moves back. a gap that is significantly greater than the spacing with which the last-shifted Group III filter plates have remained. The operations described above are repeated until all of the filtration is transferred. desky _2; the number of filter plates in the last moved group may be five, and may be smaller *

When all the filter plates J2 are moved, they rewind, in the last run of the slide truck 28, gradually. the downstream pawl 56 and finally the downward pawl 36 against the torques generated by the springs 88,78 * 50 ' PH, the peg 54 on the control pawl 36 moves the back protrusion 112 at the rear end of the rail 110, thereby turning the control pawl ' its protrusion 43 engages in a recess 74 at the rear end of the control control element 70. Thus, the control pawl 36 is held in its rest position at the end of the last ride backwards. 28 on the rearwardly protruding support 120. The resulting motion resistance causes the motor 30 to switch back to driving. Because the control pawl 36 remains in the downward position under the control of the control element 70, do not activate Lee nor subsequent padding, so that the shunting carriage returns to the empty dextrous position of the pad before it reaches the pad. In this way, the rear end controls the actuator element 70 and rotates downwardly so that the latch is released again. If the filter plates are not to be moved in groups, but the hand bag is rotated individually so that it is tilted. 1 to 4, it rotates to its upper position according to FIGS. 5 and 6. Thus, it limits the range of rotation of the respective control actuator 70 to such an extent that its extension 76 cannot rotate the first subsequent latch 56 upwards. Therefore, no further follow-up is raised; latches 56 so that the shunter carriage 28 can always carry only the uppermost filter plate 2 at each forward drive. Switching from single to group transport and reversal can be carried out without limitation at any working stage of the shifting device. - 11 -

If the filter plates are to be cleaned, they must be moved individually. The cleaning trolley 100, which for this case connects with the shunting carriage 28, secures with its cams the individually required displacement of the filter plates 2 'by ensuring that the control actuator 70, upon reaching the parking position with its inclined surface 72, moves on the cam 106 in the cleaning trolley. 100, so that the extent of rotation of the control actuator 70 when the displacement carriage 28 is coupled to the cleaning carriage 100 is so limited that the extension 76 cannot lift the first successive pin 56. Therefore, all subsequent pawls remain in their rest position. Once the filter plates that have been cleaned are cleaned, the cleaning cart 100 is disconnected from the shunting wheel 28 so that it remains standing alone in the parking position and the shunting carriage 28 is automatically prepared to move the other filter plate groups 2. '^ 7-' -

Claims (4)

8691 Patent claims 1 · Displacement device of filter plates / ^ / filter press · · ΑΛ3Γ30VΑΖ3Τ / Ν, ci Deck3 QV ^ O -Moving carriage / SQ / with reverse drive / ^ 0 / for driving? 5 AL from the front and rear in the direction of opening and closing of the filter shelf by means of a control latch (6) mounted on the shunting carriage (26) and a spring loaded (5 $) so that it can always engage the foremost, not yet moved filter at the beginning of the forward travel. ^. 'r? and engages the 4-control actuator element formed by the lever, which can be pushed into the projection of the control latch to be held in a rest position, which can move the carriage 3 (3) forward about the filter plates (2), without at least one subsequent pawl (11), also located on the pusher carriage (2), which can engage at the beginning forward driving beyond the second front, not yet displaced filtering, to be entrained by at least one subsequent actuator (b) which, in the final phase of engagement of the latch the barrel not moved by the filter plate generates a torque on the downstream latch mounted therebetween characterized in that the control operating element (70) is thus biased, independent of the resistance placed by the motion filter plate, forms a control latch / 36 / t a torque that ends the snapping behind the top filter plate. 2. Apparatus according to claim 1, characterized by - 2 -. that the control actuator (70) has an extension (76) through which the subsequent torque is formed in the direction of engagement (56). Apparatus according to claim 1, characterized in that the subsequent actuating element (80) forms a lever which is pre-tensioned to form a further torque in the latching direction on the next subsequent latch (56) once it has been moved from the resting position to the control element. positioning "" '"" "........... Device according to one of Claims 1 to 3, characterized in that the successive actuating element (80) has an extension (80) which forms a torque in the direction of engagement on the next subsequent latch (56).