SE445015B - A filter arrangement - Google Patents

Abstract

A filter arrangement where a prop is inserted in a textile stocking to be filtered in order to keep it stretched and to hold it in place on a stanchion plate equipped with a cavity.The prop consists of a wooden basket construction and is formed out of a number of semi rigid parts (10, 12) which are plaited together in sequence in the support's lengthwise direction.In this way, the conditions are laid for limiting the requisite height dimensions for a space positioned above a stanchion plate in order to retain a number of filter units (3).A springy reinforcement (15) in the combined parts' (10) lower section (11) is insertable into a spar (20) in the combined parts' (12) upper section (13) and can be closed here by a locking device (21) positioned to form a semi-rigid connection.<IMAGE>

Description

8404960-0 PRIOR ART OF TECHNOLOGY Filter devices of the above type are previously known in one several different embodiments.

In these filter devices, a number of different embodiments are further known. ring shapes in order to be able to hold the particle collection in an airtight manner elongate member of a retaining member, 1 in the form of a support plate or similar. As an example of a prior art device for fixing holding the particle collecting elongate member and an in-body insertable support in a holding device in the form of a support plate to the Swedish publication 75 00294-9, with publication number more 400 477.

In the said Swedish patent specification a filter attachment is shown with one end of it the sock must be removably attached to a pipe socket in or at a opening in a wall belonging to the filter device. For this attachment the upper end of the sock has a circumferential thickening, which is intended to be occupied by a concentric extension in the opening or the pipe socket, and said annular insert inserted in said upper end is intended to seal arrest this end.> Furthermore, it is previously known 1 principle two different categories of belonging filter devices, namely a first category, so-called hose filters, meaning that a number of individual filter units are oriented adjacent each other and removable from and insertable 1 a support plate with trained holes and a second category, so-called cassette filters, meaning that one several filter units are combined into a cassette, which is removable and insertable into the filter device as a unit.

The now mentioned filter units consisting of an elongate support basket construction and a superimposed, usually textile, material consisting, sock, must, however, at certain time intervals removed for cleaning, repair and inspection. 8404960-0 For this purpose, it becomes essential that the space above the filter unit the retaining support plate is large enough, and in any case high enough, to be able to lift resp. unit out of its support plate inserted position. This means that the part of the housing body for the upper device enclosing the upper part of the filter device, namely a floor above the support plate for the filter units, must be dimensioned with a height above the floor which is at least as high as the particle collecting bodies the longitudinal extent of the aid and the aid, which has been shown in practice become three to six meters.

The inconvenience of dimensioning the upper part of the house body with a height that allows an elevation of the filter units and especially its basket art. ruction as a single unit can be eliminated by the instruction to remove units downwards towards a filtered particle receiving space. One such procedure must, however, take place in extremely difficult sanitary conditions and inconveniences.

The prior art also includes the device shown and described in the German Offenlegungsschriften 28 46 029.

It is indicated here that the aid is trained as a plurality of only, successively to the longitudinal extent of the aid, lar.

Each part here has the shape of a basket construction, which is so trained that a first number of basket constructions forming rods are connected to a first stiffener while the rods of the second part are joined to one second stiffening. Furthermore, they are extending past the stiffeners end portions, which are curved towards the center of the basket structure.

When the two parts are brought to a cooperating position, the bring a clamping ring, intended to be inserted into trained intersection points.

The clamping ring is intended to be able to lock the two parts in relation to each other, so that an internal support for the filter the snake. 8404960-0 The placement of the resilient clamping ring in combination with the design of the parts is a circumstance which suggests that the aid can hardly be considered be flexurally rigid.

DESCRIPTION OF THE CURRENT INVENTION TECHNICAL PROBLEM In view of the previous state of the art, it must be considered as one highly qualified technical problem to be able to create one with simple means such filter device with filter units used therein and associated elongate flexural rigid supports and elongate particle collecting means, which can be lifted above their support plate for cleaning and inspection, and where the required height above the support plate can be substantially reduced in in relation to the total length of the unit.

It is also a technical problem to be able to create one for the particle collecting body or sock necessary internal support in the form of a rigid basket structure, which in its entire length can be lifted up and through in the support plate formed and holes corresponding to the basket construction without require a height corresponding to the total length of the basket structure above the the plate.

Furthermore, it is a technical problem to be able to create such an internal bend. rigid support for the device and the particle collecting body that this can consist of two or more interoperable parts and where these parts are dimensioned to be able to be removed from the support plate and with ceiling height dimensioned for standing height for staff.

It is a technical problem here to be able to create a simple interconnection part between the parts of the basket structure so that this interconnection gives one flexural compound.

It is also a technical problem to be able to create such internal support, in the form of a basket construction in several parts, where the parts on a single 8404960-0 ways can be connected to each other and attached to each other end to end and where the attachment or a separate connecting part is so designed that it does not wear on the filtering textile material in the form of a support and the connection between the parts enclosing the sock.

It is also a qualified technical problem to be able to create one flexurally rigid compound and partly an easily separable compound between the individuals the end portions of the parts in the basket construction.

It is also a technical problem to be able to design with simple means parts of the basket structure so that an upper part lower end portion can be included snap action or the like is brought to cooperate with a lower part upper end portion and where this interaction can be locked with a simple means to a bending rigid collaboration.

It is also a technical problem to create such in this context conditions that the basket construction can be used for hose filters as well as with cassette filters.

It is a technical problem to construct a simple basket structure. cooperable locking device for locking and locking the lower part the end portion for flexurally cooperating with the upper end portion.

It is a technical problem to design a locking device as on one can be easily inserted to lock the end portions flexurally to each other and can be easily removed to prevent the flexurally rigid locking but still retain a smaller locking effect between the end portions of the parts. which the locking effect ceases when the end portions are forced into a smaller bend. moments and / or when an end portion is forced into a less compressive force to thereby show a reduced or reduced cross-section.

Finally, it is a technical problem to be able to train with simple means a stiffening required for reading in a lower end portion thereof the upper part of a complete basket construction, where the stiffening is naturally bendable so that the end surfaces assigned to the stiffener are displaceable 84Û496Û-Û against each other to exhibit a reduced cross-section, and where the own clamping force can be pressed against an upper end portion for a lower one part of the basket construction.

LUSNINGEN The present invention now provides a filter device which comprises means for forcing a media stream through one or more filter units, each filter unit having an elongate particle collector body, which body cooperates with a support that can be introduced into the body and a the body and / or the aid holding device, intended to cooperate with the one end portion of the net and / or the aid. Furthermore, the invention is based on the fact that the holding means shall consist of a support plate or the like with trained hole, adapted for interaction with one of the body and / or the support end portion.

According to the present invention, the support should be formed as a plurality compatible and successive in the longitudinal oriented parts. The support can also be trained as two opposite end-to-end parts, where a cohesive device or a unit coupling part is arranged between facing end portions for resp. part.

The connection between the parts consists of a flexurally lockable but easily disassembled tangible compound.

It is hereby proposed that for the parts of the parts facing each other it applies that a first lot must be resiliently arranged in order to be able to present a reduced cross-section while an adjacent second portion should be formed flexurally rigid, so that the first portion, with reduced cross-section, is insertable in the other party and in a cooperating position between them expandable. The first part is in this position lockable to be locked position form a flexurally rigid compound with the other portion. 8404960-0 Furthermore, the parts must be designed as a basket with one spaced apart bars and adjacent bars at one of the lots are lockable in relation to each other.

The connection between the parts can consist of a flexurally rigid, lockable, but light detachable, compound.

According to the invention, it is further proposed that the first portion of an upper part should consists of a lower end portion and shall be trained resilient to a reduced cross section. The second part of a lower part shall consist of an upper part end portion and shall be formed flexurally rigid so that the lower part of the upper part end portion can be arranged to cooperate with the lower one with the snap action the upper end portion of the part.

The invention also provides a locking device which is cooperable therewith lower end portion, to in a position cooperating with the upper end portion be able to block the resilience of the lower end portion.

The locking device consists of a means slidably arranged along a basket. the structure assigned, preferably two, longitudinal bars.

Furthermore, it is indicated that the basket construction is either so trained that one first number of basket construction forming rods are joined to one first stiffening while a second number of basket structure forming rods are connected to a second stiffener or so trained that the rods forming the basket structure are joined to a single spring stiffening stiffening, where the resilient stiffening or stiffeners is assigned a curved shape, part of a circle or the like.

In particular, the invention indicates that a stiffening can be constituted by a single almost to a closed circle curved first rod, which can then be considered have an open part defined by opposite end surfaces. Two longitudinal nearby rods for the basket structure are attached to the stiffener in connection to said end surfaces while the locking device is slidably arranged along said two rods. The locking device comprises a means, which 8404960-0 consists of a stirrup which is bent around these two longitudinal bars slidably arranged along the bars.

Furthermore, the invention indicates that in that case the lower end portion of the upper part trained with a single first bar curved almost to a closed circle, which then has an open part defined by opposite end surfaces, so shall a lower part upper part be formed with a to a closed circle curved second rod, to which is attached a track formed to a closed circle. format organ. The latter member is located above the second rod and with the groove facing inwards, the first rod having a circular shape adapted to be insertable into the track.

Finally, it is indicated that the support is in the form of a substantially cylindrical shape basket construction and where the basket construction assigned longitudinally the bars for each part and in the area where the individual parts face each other is slightly tapered and is located immediately inside the cy- the linder form so as not to rub on the sock.

BENEFITS The advantages which can mainly be obtained are considered to be characteristic of a filter order in accordance with the present invention is to thereby be created conditions for being able to enable a simple in a simple way removal of the filter unit support, and then especially by this trained in a number compatible with each other and successively in the support longitudinally oriented parts. In that case the filter unit, for service, inspection and the like, shall be taken up over a support plate for filter unit, it becomes possible according to the present invention to dimension sionate the room above the support plate or a floor with a relatively low building height or ceiling height at the same time as the instruction to leave the support trained as a plurality compatible with each other in the support longitudinal extent all the way to end oriented bent rigid parts gives possibility to more easily handle these support parts. 8404960-0 What can mainly be considered as characteristic of a filter device in in accordance with the present invention are set forth in the following patent characteristic part of claim 1. koni FIGURE DESCRIPTION A presently proposed embodiment, having the present significant characteristics of the present invention, will be further described by reference to the accompanying drawing therein; Figure 1 shows in side view and section a previously known filter device figure figure figure figure figure figure and in which the particulate collection filter unit means in accordance with the present invention very well could be used, shows in side view a first embodiment of a filter unit with a particle collecting body and an interior support where its upper part cooperates closely with a support plate and where Support: is trained as two aeiar, 3 shows in perspective view an upper part lower end portion, shows in perspective view a lower part upper end portion and where Figure 3 and Figure 4 are oriented so that a desired one collaboration should be easier to understand, shows in side view a second embodiment of a filter unit with a particle collecting means removed so that only the aid is shown and where its upper part is for close interaction with a support plate, shows on a slightly enlarged scale in relation to the figure One side portion of the support for the upper part, shows on a slightly enlarged scale in relation to the figure One side portion of the support for the lower part, 8404960-0 _10 .. figure 8 shows in plan view one attached to the lower end of the upper part resilient stiffening in the form of an almost to a sluice ring or circle bent rod, figure 9 shows one which can be cooperated with the stiffener according to figure 8 locking device as well figure 10 shows in plan view one attached to the upper end of the lower part stiffening in the form of a closed ring or circle curved rod as well as a groove-shaped body designed for interaction with the stiffener according to Figure 8.

DESCRIPTION OF THE NOW FURESLAGEN EXECUTION FORM With reference to Figure 1, a filter ~ is thus shown in side view and in section device to which the present invention relates. Said filter device 1 comprises means (not shown) for pressing a media stream "A", especially particulate media flow, through one or more filter units 3, 3a, Bb and 3c. Said particle stream "A" passes via a nozzle 2 to units 3, 3a, 3b and 3c, each of which has a particle collection elongated body 4, and a support 5 insertable into the body 4, by said means and support for an outlet 6, the media stream "B" leaving The filter device is cleaned.

Each filter unit 3, 3a, 3b resp. 3c shows a particle collection elongate member 4, in the form of a textile tube with a closed lower end and which is called "sock", which sock interacts with one insertable into the sock support 5, in the form of a wire basket construction, and a sock and / or the support holding device 7, constituting a support plate or the like with trained hole, adapted for interaction with one end of the sock and the support party.

Since all filter units and all particle collectors are elongated bodies and the support trained therein are identically equal to the subsequent one the description only to include the filter unit 3. 8404960-0 _ 11 _ When the particle load media stream "A" has passed through the unit 3, and then the the member 4a and the support Sa, the particles accumulate on the outside member 4a. Via a control circuit 8 a valve 9 and compressed air are actuated, via a compressor, is allowed to pass a piping system, where the piping system exhibits nozzles or in connection with the bodies recesses, whereby a compressed air jet or wave can be caused to travel down the means 4a and the support Sa and thereby shakes off particles accumulated on the outside of the member 4a, which falls down to a separate particle-receiving space Za, the lower of which part has a material removing device 2b, also serving as air seal.

The member 4a thus consists of an elongated textile tube or textile pa, which is kept stretched by the support Sa and which accumulates separated particles on the outside.

Referring to Figure 2, it is now shown on a slightly enlarged scale and partly in cross-section a first embodiment of a filter unit 3 and this shows a particle collecting elongate member 4a, in the form of a textile tilt tube or sock, and which member 4a cooperates with one in the member insertable support Sa, in the form of a wire basket construction. The body 4a is shown only in connection with its upper part. In practice, it extends this member 4a around the support 5a and is closed below the lower of the support of 5a '.

The body 4a and the support Sa are both intended to be able to cooperate with a fixed pouring device 7 and this device 7 is intended to cooperate with the body and / or one end portion 4a 'of the support, respectively. Sa ". ' The holding member 7 consists of a support plate or the like with one trained hole adapted for interaction with one end portion of the body and support 4a 'resp. Sa ".

Figure 2 shows that one end portion 5a "of the support 5a is assigned, in relation to other aid, an extension. This enlargement begins at the reference numeral 5b and ends with the reference numeral 5c. 8404960-0 _ 12 _ This extension is adjacent to the hole and that formed in the support plate. facing the support Sa and the body 4a facing the edge portion of the hole so used fit, that the support 5a's own weight will produce partly one clamping force of the member 4a against the support Sa on the one hand a holding force of the support Sa against the plate 7.

Furthermore, it is proposed that the support 5a should be arranged to be able to cooperate with the hole of the plate, so that the upper end 5c of the support will be over device 7 a distance corresponding to less than twice the cross-sectional dimensions or diameter in connection with the device 7.

In order for these filter units to be taken up for inspection and / or service must partly the support Sa in the form of the basket construction partly the sock is lifted out of the holding and through the support plate 7 and for this a ceiling height "h" (figure 1) is required over a floor 6a equal to or slightly less than the total length of the basket structure.

In order to eliminate this inconvenience, it is proposed that the aid Sa formed as a plurality of mutually compatible and consecutive its longitudinally extending oriented parts. The support can be trained with two or more end-to-end joined parts 10 and 12.

It is further indicated that a cohesive device or a separate cohesive device The coupling part is formed or arranged between facing each other end portions for resp. part.

The compound should consist of a flexurally rigid but easily detachable compound.

With reference to Figure 3, an upper part and a lower part 10 are shown in perspective view end portion ll. In the drawing, the end portion 11 has been oriented a distance from one lower part 12 upper end portion 13, according to figure 4, and which end portions are designed for collaboration with each other. 8404960-0 _ 13 _ The basket construction consists of a number of narrow per se weak but for purpose sufficiently strongly dimensioned wires with circular cross- cut in the subsequently named rods.

The wires or rods 14, 14a, 14b of the upper part 10 for basket construction are connected to a first stiffener 15 while the upper part 10 wires or rods 16, 16a, 16b for the basket construction are connected to a second stiffener 17. The stiffeners 15 and 17 are assigned to another part of a semicircle curved shape and has a rectangular cross section.

All the wires or rods of the lower part 12, where only a few divided reference numeral 18, 18a for the basket structure, is united into a circular collar 19. This collar 19 has an inwardly groove 20 adapted to be able to receive the stiffeners 15 and 17.

The stiffeners 15 and 17 can be pressed against each other against the action of the closing bend and can be inserted into the groove 20, after which by snap action or self-suspension in the bars, the stiffeners 15 and 17 will be pressed. set out in conjunction with the track 20.

There is now a per se fixed but easily detachable connection between the lan end portions of the parts.

By inserting two locking devices 21, of which only one is shown in Figure 3, where one is allowed to cooperate with the rods 14, 16 and the other is allowed cooperating with the rods 14b, 16b, it becomes possible to displace them locking devices along the bars against the stiffeners 15 and 17, wherein the stiffeners 15 and 17 are pressed into the groove 20 so that they are against each other facing surfaces 15a and 17a will be spaced apart.

When the locking devices 21 are adjacent to the stiffeners 15 and 17 there is a flexurally rigid joint between the parts 10 and 12. Passed on the other hand, the locking devices up a distance along the rods 14, 16 resp. 14b, 16b, the stiffeners 15 and 17 of the spring force of the rods will still cooperate with the track 20, but it becomes possible to press here 8404960-0 _14- the stiffeners 15 and 17 against each other to remove the upper part 10 from the lower part 12.

Referring to Figure 5, a second embodiment of a filter unit basket construction, without particle collecting means in the form of a textile sock, where its upper part can work closely with a support (not shown) plate.

Figure 5 shows that the lower part 11 of the upper part 10 and the lower part the upper part 13 of the part 12 are both formed slightly tapered in connection to their compound, so that the sock not shown in Figure 5, which shall enclose the basket structure, will not be subject to wear in connection to the junction.

Referring to Figure 6, there is shown, on a slightly enlarged scale, an edge portion for the upper part 10 and in particular it appears that the upper part 10 lower part 11 is formed with a single stiffener 15. This stiffener 15 consists of a first rod or wire curved almost to a closed circle and has opposite end surfaces 15a, 15b defining an open part 15 '.

Two longitudinally adjacent rods 22, 23 for the basket structure are attached to the stiffener 15 adjacent the open portion of the stiffener 15 '.

A locking device 21 is arranged in a similar manner as in Figure 3 to act with the rods 22 and 23, in that the locking device 21 is displaced bare arranged up and down along the bars. The locking device comprises a reading means, which consists of one around the two longitudinal rods 22, 23 bent yoke and the means must be easily displaceable along these bars.

Figure 6 shows the locking device 21 in one offset from the stiffening 15 location.

Referring to Figure 7, an edge portion is shown on a slightly enlarged scale for the lower part 12. Figure 7 shows that the upper part 12 is upper portion 13 has a circular second rod 24 serving as a stiffener. 8404960-0 -15- The lower end portion 11 of the upper part 10 is thus formed with an almost to a closed circle curved first rod 15 while the lower part 12 upper portion 13 is formed with a second rod curved to a closed circle 24. To this second rod 24 is attached one formed to a closed circle groove-shaped member 25 and this member 25 is placed over the second rod 24 and with the groove 20 facing inwards. The first rod 15 should then have one circular shape adapted to be insertable into the groove 20 and this insertion can be done by compressing the first rod 15, so that the rods 22 and 23 approach each other and the open part 15 'decreases.

In this position, the locking device 21 is offset from the first the bar 15. The resulting shrinkage of the circle, or decreased the cross section of the rod 15 means that the first rod 5 can be brought in cooperation with the groove 20, after which the rod 15 of self-suspension comes to return to the position shown in Figure 8.

The locking device can now be displaced along the bars 22 and 23 down to the joint. action with the first rod 15 and there forms a locking of the rod 15 in track 20.

Especially from Figures 6 and 7 it can be seen that the whole support has the shape of a wire basket construction and where the construction forming longitudinal the rods, say the rod 22 and the rod 26, respectively, in the area where the support individual parts facing each other, is slightly tapered so that the body 25, the rod 24 and the rod 15 will be located immediately inside an outer limiting surface for the basket construction in general.

The invention is of course not limited to the one exemplified above. given embodiment but may undergo modifications within the scope of the concept of invention illustrated in the appended claims.

Claims (11)

8404960-0 PÅTENTKRAV A filter device, comprising means for forcing a media stream through one or more filter units, each filter unit having an elongate particle collecting member, which means cooperates with a support insertable into the member and a means and / or support holding means, intended to cooperate with one end portion of the member and / or the support, the holding member being a plate or the like with a formed hole, adapted for co-operation with one end portion of the member and / or the support, the support (Sa) being formed as a plurality of parts (10, 12), characterized by the fact that for the parts facing each other, a first part (11) must be resiliently arranged in order to be able to exhibit a reduced cross-section while an adjacent second portion (13) is to be formed flexurally rigid, that the first portion (11), with reduced cross-section, is insertable into the a the second portion (13) and in a position cooperating between them expandable and that the first portion (11) in this position is lockable (21) to form a flexurally rigid joint with the second portion (13) in the locked position. 2. A filter device according to claim 1, characterized in that the parts are designed as a basket with at a distance from each other oriented rods and that adjacent rods at one of the portions are lockable in relation to each other. 3. A filter device according to claim 1, characterized in that the connection between the parts consists of a flexurally rigid, lockable, but easily detachable, connection. Filter device according to claim 1, characterized in that a first portion (10) first portion is constituted by a lower end portion (11) and is formed resiliently for a reduced cross section, that a lower portion (12) second portion is constituted of an upper end portion (13) and is formed flexurally rigid and that the lower end portion of the upper part is arranged to cooperate with the upper end portion of the lower part with a snap action. Filter device according to Claim 4, characterized in that a locking device (21) can be cooperated with the lower end portion (11) so that it can lock the lower end portion (11) in a position cooperating with the upper end portion (13). resilience. Filter device according to Claim 5, characterized in that the locking device (21) is e.g. of a means, slidably arranged along a number of longitudinal bars forming a basket structure. Filter device according to claim 6, characterized in that the basket structure is formed such that a first number of basket structure forming rods are connected to a first stiffener (15) while a second number of basket structure forming rods are joined to a second stiffener (17), or so formed that all the rods are joined to a single resilient stiffener, where the resilient stiffener or stiffeners are assigned a curved shape, part of a circle or the like. 8. A filter device according to claim 1 or 7, characterized in that the stiffener consists of a single first rod curved almost to a closed circle and has opposite end surfaces defining an open part, that two longitudinal rods for the basket construction are attached to the stiffener in connection to the end surfaces and that the locking device is slidably arranged along these two bars. 9. A filter device according to claim 8, characterized in that the locking device consists of a stirrup bent about two longitudinal bars and is slidably arranged along the bars. 10. A filter device according to claim 1, characterized in that an upper part lower end portion is formed with a first rod curved almost to a closed circle, that a lower part upper portion is provided with a tiïï a sïuten cirkeï curved second rod, t111 víïken is attached to a t111 sïuten cirkeï extended track-shaped member, positioned over the second rod and with the groove facing inwards, the first rod having a circle shape adapted to be insertable into the groove. 11. A fixture according to claim 1, characterized in that the support is in the form of a basket structure and wherein the basket structure forms the longitudinal bars for each part and the area where the individual parts face each other are somewhat different.