DE2209721A1 - Screening, sifting, filtering device - elastic deformable elements form channels or tubes for the effective treatment of fine - Google Patents

Abstract

The device for screening, sifting filtering etc., with screen support frame, >=2 element carrier frames movable relative to each other and with elastic bridging elements held between the support frame and carrier and between neighbouring carriers, which allow the relative movement of the carrier, when these are moved perpendicular to the length axis, thereby continuously changing the width of the screening zone between the carrier. The screening elements are arc-like deflected upwards or downwards and stretched, whereby in the axial direction of the device running carriers supports a multitude of transverse elastic elements with or without perforations, which are arranged to form elastic tubes or channels next to or above each other.

Description

Subject: "Device for sieving, sifting, filtering G. the like." object of the main patent DBP 1 275 339 is a screening machine.

which is particularly suitable for a sieving process according to D3P 1 206 372.

In this sieving machine, the peculiar Movement conditions of the sieve bottom according to BP 1 206 372 achieved.

The sieve tray supports of this machine are placed in a machine frame Fixed, steered, tiltable and with alternating opposite tilting directions driven.

Each of the Siebbodentrager has rocker arms at one end with which the two oppositely working push rods are connected yellow. The push rods are guided on both sides within the side walls of the screening machine frame and Driven by the eccentrics of a single eccentric shaft via connecting rods.

Such screening machines have proven themselves because of their ability to handle even the most difficult Screening goods still to be processed, already established in areas rich in raw materials.

In the screening machine described, the material to be screened is preferably transverse to the central axis of the tilting support, as is the case with any other screening machine between the side cheeks or walls, which in this case always are transported.

Since the sieve mats of the resilient and flexible sieve bottom are alternately tensioned and relaxed in zones, a sealing problem arises, especially with fine sieving on the side sieve box walls, which requires measures with special, likewise elastic sieve bottom or construction parts, which up to now have not been satisfactory for sieving in the finest range . In the present invention, therefore, the ia The already proposed solution is based, in which the sieve tray supports run in the sieve direction, so are no longer displaced transversely to the longitudinal direction of the machine, but parallel to it. In addition to the great advantage of reducing the number of bearings for the thschine, as they were previously carried out according to the main patent, because like every screening machine it is preferably longer than wide and therefore only bearings in the direction of the narrow side are required when the screen tray supports are longitudinally guided , the big advantage lies in the problem-free solution of the side seal.

Special elastic side seals of the previous type are - we.

at all - only needed for the narrow side of the task to prevent the goods from running back. The side sealing is now done only through loosely clamped Guc1mi or plastic tarpaulins between the outside lying beams and the side walls of the screening machine.

It is also possible to use metal or hard plastic panels that are flexible are to be connected to the easily deflectable girders.

If necessary, an elastic intermediate means can also be used here are used between the flexurally elastic plates and the carrier.

Allow the arrangement of the carrier in the longitudinal direction of the machine now another idea on which this invention is based, relating to a sealed guide of the material to be screened. With this basic thought can be decisive Side effects on the material to be screened are carried out, which the machine, among other things, for the Make the implementation of viewing and filtering tasks suitable. Plus the problem becomes the often too large urfhe for certain goods with arranged over ie the sieve surface Prallrahmcn coped with a simultaneously resulting solution.

The rfndung suggests on the sieve base supports above of the actual sieve. Jicht- or filter covering, preferably one with spacer strips a brought eAaetieehe, also to apply elastic zone-wise divided top surface, the primarily in a convex arch position and a taut horizontal is working outside the interface. In practice, this results in parallel ones Sieve, sifting or filter channels that work alternately and have a pressure or suction effect due to the cross-sectional shift S of the individual channel.

In this way, the most difficult and so far unsolved sieve, View and filter tasks as well as new processing tasks - such as the Dewatering, drying, etc. -solving.

The question of feeding the goods to be treated to the channels is Can be easily solved with a suitably filled hose or funnel. In the case of the top cover, the possibly

used support strips and the sieve cross elements below formed sieve, viewing or filter channels can move the cover and a s sieve cross element run parallel to each other, i.e. that at the same time one concave position and a tense position is achieved in the carrier movements.

However, it is also possible in particular with the inventive arrangement E.g. a convex position of the cover and, at the same time, a concave position of the sieve cross element to achieve, which is followed by a parallel press-clamping position of both elements.

This creates enormous pressure similar to that of a blower the goods to be sieved or to be filtered in the direction of passage of the sieve or filter cross element obtained, which means a significant support of the separation process.

With a corresponding shape, the cover element can always be effective convex deflection of the upper reaches of the sieve cross element are given that it makes it possible to dispense with longitudinal intermediate strips or to keep them low keep.

The possibility of superimposing sieve elements and cover elements for the purpose of ###### formation of multiple classifying sieve and filter channels, which are in constant motion, as proposed by the present invention (, can can also be expanded so that several different filter tasks take place simultaneously in channels lying one on top of the other.

For example, it is possible to have several sieve or filter elements to be arranged one above the other with dividing openings of different sizes and thus a multiple classification with separate overflows, but only to create a task carried out on the rough surface.

It is also possible to carry out% separate tasks in each sieve channel in that a sieve or filter lining is assigned its own cover element is, which then at the same time the transporting sub-floor for one located above Represents sieve lining.

These solutions according to the invention are also used in others Carrier movements, as they are generated in the present machine, feasible. It is only important that the required relative movement between two neighboring Carriers is generated, be it by linear or circular motion of one or both Behachbarter carrier with corresponding phase shifts.

The application of the principle according to the invention in corresponding machine or apparatus engineering in the most diverse areas of processing technology no limits.

So the inventive training of moving classifying or Filter hoses in the Kotzbination of filter and filter element, of filter and cover element, of multiple filter elements arranged one above the other, of im Alternately arranged filter and cover elements, etc., constructive training experience which they are in a horizontal, inclined or vertical league with appropriate Let apparatus or machine training take effect.

Fig. 1) shows one with sieve bottom supports running in the sieve direction (1) working sieve machine, in which this sieve base carrier in the bearings (2) and (2 ') are mounted such that they can be tilted.

Fig. 2) shows as a top view to Sig. L) how the drive of the sieve tray support (1) takes place. The push rods (3) and (3 '), in which the rocker arms (4) and (4'), which are connected to the Siebbodentragern (l), intervene, are in turn over the connecting rods (5) and (5 ') from the eccentric shaft (6) on which the V-belt pulley (7) for the drive is to drive.

The tilting movements of the sieve tray supports (1) alternately tension the Sieve elements (8) and (8?), Which are clamped between the sieve bottom supports (l). The cover frames (9) create a closed classifying space.

Fig. 3) shows the side view of Fig. 1), from the bottom side seen here.

Fig. 4) shows a section through the narrow side of the screening machine, in which the Dage of the sieve cross elements in the tension or concave position, depending on .center setting changes, can be seen. The preferably lateral seal (10) and (10 '), which can work without any problems, clear.

Fig. 5) shows a section from Fig. 4), in which especially the side seal (10) and (10 ') can be seen.

An elastic longitudinal wall is used in the side seal (10), which makes the indicated deflection movements of the carrier (1) problem-free.

The occupancy of this side seal or guide (10) is also prevents any sticking of difficult material to be screened. With the side seal shown on the right respectively.

Guide (10 '), the elastic part is shorter as a carrier connection held and at the top with semi-elastic or rigid guide plates connected to any material.

There are many modifications for this problem-free side seal perform.

Fig. 6) shows the advantageous use of the screening machine according to the invention for multiple separation or increased performance by arranging several decks according to the invention, be it as a screen deck, closed transport or pressure deck.

There are no limits to the possible combinations. she can be adapted to any reprocessing problem.

In the left longitudinal zone of FIG. 6), the example is a triple arrangement clarified, sitting e.g. seen from below upwards. a screen mat (12) over from the intermediate pieces (12) a Druckode Transportinatte, the is in turn covered by a distant sieve mat (i4).

With this arrangement it is possible, for example, to carry out separate tasks the indicated feeding proboscis (15) two similar sieving or sifting processes in a movement to perform. In the middle zone there are three with different Sieving widths provided sieve strips (12 '), (13') and (14 ') arranged, the one Enable multiple separation from the goods coming with the trunk (15t).

In the right-hand longitudinal sieve zone, dust-tight closure can pass through the pressure mat (14 ") has a three-way separation when fed through the trunk (15") the sieve mats (13 ") and (12"). This representation is essentially only chosen to show some possibilities.

In general, one will choose a uniform training that here previously unattained performance and separation values, especially in the fine and ultra-fine range offers. The movement of the sieve tray supports I and II can - as in the main description already mentioned - also in this multi-level arrangement in any way in linear Orbits or on a circular path as well as with rotary K pp movements, depending on the chosen Sieve machine, to carry out this process, erfo an.

Fig. 7) represents a solution in which over a total knitter (16), from the russel-like bellows (17) the loading of the individually formed hose-like or chamber-like sieve zones takes place. The overall arrangement can dbel under Incline or be set up vertically.

The drive, e.g. B. by means of eccentric shaft (18), can only one Carrier system, but also both carrier systems in the illustrated case.

Fig. 8) shows the top view of Fig. 7) for a single arrangement the combination of a closed zone mat with a sieve zone mat or the combination of 2 screen mats (l2 "') and (13"') can be made so that the The resulting tube cross-section is formed from the arcuate position of both elements ######## being changed in the neighboring zone in each case to the pressing parallel position will. This cross-sectional state changes naturally.

To ensure the arch position of the mats forming the hose The elements can be preformed or pretensioned to ensure this tendency.

Fig. 9) shows a system according to Fig. 7) and 8) in principle in the overall arrangement again in Seitenanscht, where the goods to be sifted or sieved over the Conveyor belt (19) enters the funnel (16) on the sieve arrangement according to the invention, which is operated by the eccentric shaft Q183.

The screened material reaches the collecting belt via the funnel (20) (21), while the overflow flows through the overflow tubes (22) into the collecting container (23) arrives.

Fig. 10) shows a screening zone according to the invention in detail, in which a closed mat (13) works as a transport and loosening carrier while the overlying sieve mat (14) e.g. dust in the fraction determined by hr released into a room under suction.

suction air and pressure build-up when the formed is contracted Ideal support of the hose.

Fig. 11) shows an inverted arrangement in detail, in which with Using gravity, the material to be separated is transported with the mat (14) lying down where it can be subjected to three influencing effects: 1.) the pressure formation the mat (13), 2.) the force of gravity and 5.) one in the indicated container (24) existing suction through negative pressure.

Fig. 12) shows again the section of a sieve zone according to the invention in front view and plan view, in particular in the plan view the division the sieve and multi-deck mats in partial fields in the longitudinal direction becomes clear.

The connection of these subfields of the transverse elements can be in the most varied Shape by riveting, bolt bonding, vulcanization, clamping profiles or the like.

take place.

The division into sub-sections also offers decisive manufacturing technology Advantages in the manufacture of the transverse elements themselves.

Fig. 13) shows the cross section through 2 sieve zones in the form of a hose, which are advantageous for certain applications of the units according to the invention and especially for the production of hose cross-sections that are let through on both sides or on one side in terms of automatic manufacturing.

The flat cross-sections on both sides for clamping on the drive carriers I and II can be completely perforated and preformed. The coating of these flat cross-sections Using protective metal or plastic caps is possible and offers an essential Easier assembly The application examples can be vs lfach expand, so it is also possible to use wet goods with Hilie of the present invention, forming a hose cross-section and constantly changing this cross-section Swinging slats are also very effective at draining water, once the beating one Movement and, on the other hand, the pressing effect of those moving towards one another Mats that form the hose cross-section provide ideal support.

Even with the solution without the dynamic coverage shown in Figs. 1) to 5) are essential for the area of wet and wet sieving Advantages given. The constructive training for numerous sieve, sight and There are no limits to the problem of piltering when using this principle of the invention.

Claims (1)

Regards: Device for sieving, sifting, filtering or the like. - Claims - Claim l) Device for sieving, sifting, filtering o. The like., In the case of the sieve tray carrier in at least two moved relative to one another Frame systems interlock in pairs and where the gaps between the Sieve base supports are supported over bridging resilient transverse elements, the length of which allows the relative movements of the sieve tray supports to one another when they are transverse to their longitudinal extension are moved relatively, whereby the between the sieve bottom supports formed sieve zones constantly in width with alternating deep sag, alternate arched bulge or different tension of the transverse elements, characterized in that the sieve bottom supports which run primarily in the sieve direction several compliant cross members that are both closed and with screen openings can be provided, are assigned in such a way that running in the direction of Flexible hoses or ducts that are delimited at the top and bottom, side by side and one above the other lying way. Claim 2) device for sieving, sifting, filtering o. according to claim 1, characterized in that between the sieve bottom supports transverse, resilient elements in pairs or in multiple arrangements once made of elastic materials, on the other hand only made of flexible elastic materials, which are then preferably arranged in a concave upward curvature in a corresponding length are functionally connected. "Device for sieving, sifting, filtering o. The like." - Claims - Claim 3) Device for sieving, sifting, filtering or the like. according to claims 1) - 2), characterized in that between the transverse elements arranged one above the other on the sieve tray supports Spacers or strips delimiting the individual channel are assigned which preferably a closed cross-section and possibly with openings for deS Passage of the material to be classified are provided. Claim 44 device for sieving, sifting, filtering or the like. according to claims 1) -3), characterized in that the between the sieve tray supports located transverse elements in the sieve tray support direction Gluing, riveting or otherwise connected individual segments are divided. Claim 5) device for sieving, sifting, filtering or the like. according to claims l) - 4), characterized in that the division the sieve and cover linings are made so that even large-area units Appropriate shapes and combinations can be used that span several portafilter zones Consistent widths and, if necessary, dimensions extending over the entire length. Claim 6) device for sieving, sifting, filtering or the like. according to claims 1) - 5), characterized in that the one Arrangement of two transverse elements one above the other, forming a hose-like classification unit from a pre-formed and several hose-like tubes arranged one behind the other There is cross-sections in which the laterally extending surface cross-sections of the Serve fastening on the sieve tray supports. Device for sieving, sifting, filtering or the like. - Claims - Claim 7) device for sieving, sifting, filtering or the like according to claims 1) - 6), characterized in that either the lower part of the hose formed in this way also consists of a sieve or filter lining consists of a closed cross-section or the arrangement reversed or the The design is such that both sides consist of a sieve or filter lining. Claim 8) device for sieving, sifting, filtering or the like. according to claims 1) - 7), characterized in that the task of the filter, sifted or sieved material in chambers that run in the sieve direction by means of a funnel or some other feeding device, from which preferably flexible filling hoses like a trunk into the individual chambers or hoses of the invention Device are supplied. Claim 9) device for sieving, sifting, filtering or the like. according to claims 1) - 8), characterized in that also on the outlet side preferably arranged flexible, trunk-like drainage hoses will. Claim 10) device for sieving, sifting, filtering or the like. according to claims 1) - 9), characterized in that the sieve, The visible or filter surface is arranged vertically and the screen to be screened Goods to be sifted or filtered horizontally on one or more in a row lying sieve, visible or filter surfaces is guided so that the solids are vertical can migrate and the purified medium carrying the solids behind the filter surfaces can be continued horizontally. device for sieving, sifting, filtering or the like.1 '- claims - claim 11) Device for sieving, sifting, filtering or the like. according to claims 1) - 10), characterized in that at vertical Arrangement of the device, the supply of the sieve, sifted or filtered material as well is inserted vertically into the hose or channel cross-sections formed. Claim 12) device for sieving, sifting, filtering or the like. according to claims 1) - 11), characterized in that the invention Arrangement in a vertical or inclined position by a total of them from the outside bypassing gaseous or liquid medium, e.g. for the purpose of drying or washing the hoses or channels passing sieve, sifted and filtered material. L e r s e i t e