CN1140627A

CN1140627A - Air filter having filter pockets

Info

Publication number: CN1140627A
Application number: CN 95109251
Authority: CN
Inventors: B·恩斯特
Original assignee: Zenteco AG
Current assignee: Zenteco AG
Priority date: 1995-07-20
Filing date: 1995-07-20
Publication date: 1997-01-22

Abstract

The filter, typically an air cleaning filter, has a frame element, preferably rectangular or square, retaining a plurality of adjacently located filter bags(4). The filter bags, themselves, are retained in the frame by bag-supporting ribs(6) which are folded from blanks(11,11') in zig-zag fashion to define a central folded part 9, and two lateral folded portions (10' 10" 10). To assemble the filter, adjacent filter bags are inserted and then clamped between the central portion and a lateral folded portion, and held together for example by adhesives, staples, or the like. The ends of the rib structures(6) define support legs (12, 12") which are secured to the frame element (1). The position of the ribs (6) determines the spacing of the filter bags (4). A spacing comb (14) formed with slits (16) determines the spacing between the opening of adjacent filter bags. The structure permits easy matching of filter bags to different dimensions of frame elements.

Description

The air cleaner that has filter bag

The present invention relates to a kind of filter that is used for gaseous fluid, relate in particular to a kind of air cleaner, in this filter, a plurality of filter bags are placed adjacent to each other, to admit the normally such gas stream of air, described a plurality of filter bags are fixed on the ribs of opposing parallel; The invention still further relates to a kind of method that filter bag is assembled into a row in filter frame.Ribs is supported on the framework.

Openly apply for disclosing among the 2449330A a kind of air cleaner with filter bag in Germany, in this filter, filter bag hangs on the pole, opens towards leaked-in air.The filter that extends on rod partly is stitched together.The cost of making this row's filter bag is quite high.

The purpose of this invention is to provide a kind of air cleaner, this kind filter can be made at an easy rate, and size with respect to existing filtration system, it allows to select to be contained in the corresponding interval of the filter bag on ribs or the support bar on a large scale, and preferablely be that it also allows to make or install automatically a row filter bag fast with machinery.

In brief, filter bag is clamped in bag support bar, and described bag support bar is to make with folding rib component form, and its end is fixed on the framework.The rib member is formed so that zigzag is folding by a millboard, and is vertically fixed on the framework.The material of filter bag yes breathable, but and air permeable normally, the described filter bag material clip of adjacent filter bag is between zigzag folding rib member folding.

That this structure allows to make relative thin-walled thereby also be ribs than light material.Because this folding structure, so the rib member has the performance of very high anti-integrally bending on the direction of air-flow.Can also be easy to make the interval and the filter bag on the ribs of ribs in the framework to mate with existing frame size.Preferably, if framework and filter bag make by combustible material, that not rib can make by combustible material equally, thereby whole filter can incinerate in suitable incineration factory under the situation that does not make filter bag and framework apart.

Fig. 1 is the diagrammatic vertical cross-section view of getting by an air cleaner, and the sequential steps of the ribs of for example carrying out in automatic processing system that filter bag is packed into is shown;

Fig. 2 is the partial, exploded perspective view together with the segment of the part of the framework of installed part and filter bag;

Fig. 3 is the vertical view of ribs before folding that is used for filter bag;

The cutaway view that Fig. 4 is that the cutting line IV-IV along Fig. 5 is got, ribs after first time folding operation;

The vertical view that Fig. 5 is a ribs shown in Figure 3 after first time folding operation;

The cutaway view that Fig. 6 is that the cutting line IV-VI along Fig. 7 is got, ribs behind second time folding operation;

Fig. 7 is the vertical view of the rib after folding the finishing;

Fig. 8 is partial view support frame, that demonstrate the one angle that has filter bag and ribs;

Fig. 9 is the schematic plan of another embodiment of ribs before folding;

Figure 10 is the partial top view of framework that has the folding rib of Fig. 9; And

Figure 11 is the cutaway view of getting by the folding rib that has gas permeable material, and described gas permeable material is from folding rib is packed in the continuous material source of feed volume and so on into.

The gaseous medium that hereinafter is used for short air cleaner is used for making the particle of dust or other pollution and air or any other mobile gaseous medium to separate with commercial filters.Traditionally, this filter is kept by rectangle that is fixed with filter bag 4 illustrated in figures 1 and 2 or square frame 1.A plurality of this filters can be bonded together and form a filter and be listed as.

Framework 1 is preferably made by the hardboard that is bonded together with corrugated boxboard core.In order to simplify drawing, refill is omitted from Fig. 1 and Fig. 2.The cross section of refill is rectangle or square preferably.The inboard of framework has engages stop or shoulder 2 usually.Filter bag 4 is fixed on the framework 1 by ribs 6.Filter bag 4 opens to air stream, thereby makes air flow into and pass filter bag along the direction of the arrow A among Fig. 1, Fig. 2, and after by filtering, the direction of arrow A 1 is left filter bag 4 in Fig. 1.The cross section of filter bag is V-shaped basically usually.

Ribs 6 is made by material continuous, relative thin, and this material is preferably such as the such combustibles of hardboard.

To shown in Figure 7, flat millboard 11 is folded into folding ribs 6 as Fig. 3, in the first road folding process, millboard 11 is 9 folding along crease 8 in the middle, so form half one 9 ' and 9 "; Outside 10 ' and 10 ", form the structure shown in Fig. 4 and Fig. 5 along folding 90 ° of crease 10a, 10b.Two side legs 10 ', 10 " initial and central portion 9 extensions that meet at right angles.Two progression of end flap 12 ', 12 ' with respect to side leg 10 ', 10 " plane that forms is upwards rolled over 90 ° along crease 12a, 12b.In folding step subsequently, along crease 10a, 10b, in Fig. 4 the direction of arrow C respectively with two side legs 10 ', 10 " folding lean against on the central portion 9.Externally 10 ', 10 " and clamping has the material of filter bag 4 between the central portion 9.See too clearly in Fig. 1 that each folding step is shown successively, step I inserts filtering material, and Step II is to catch and tentatively clamp filtering material, Step II I be with filtering material be clamped at last the folding thing 10 of zigzag ', 9,10 " between.From to flat millboard up to the folding process of step I, Step II and Step II I, flap 12 reorientations.

Preferably as shown in Figure 6 and Figure 7, side leg 10 ', 10 " motion make Fig. 3, Fig. 4, the supporting leg 12 that flap 12 ' formation extends laterally shown in Figure 5.These supporting legs 12 are to constitute folding rib 6 part of the whole, and are abutted against with the inboard of framework 1, extend round about from the central portion 9 of relevant ribs 6.As shown in Figure 6, central portion 9 slightly be longer than sidepiece 10 ', 10 ".

Filter bag 4 be clipped in endways central portion 9 and two side legs 10 ', 10 " between; In addition, preferably that these filter bags 4 are in position fixing, perhaps can pass through bonding agent, for example barring or embossing and the distortion, staple or the analog that produce are fixed these filter bags 4.

Supporting leg 12 links to each other with framework 1 by bonding agent, staple or analog.One common interval is arranged between adjacent ribs 6.This interval can be for example between the supporting leg 12 of adjacent ribs 6 or the adjacent side leg 10 of ribs 6 ' and 10 " between insert loosening pad, and make described loosening pad for example link to each other to fetch with proparea 1 to pre-determine by bonding agent; Select as another kind, flap 12 ' leg also can select like this, promptly when being installed in it on framework, consequent extension leg 12 will dock mutually, pre-determining the chosen distance of ribs 6, and thereby decision V-arrangement filter bag open program.

Fig. 2 illustrates the another kind of embodiment of the predetermined space of ribs 6.The isolation comb structure 14 that curves U-shaped has slit 16, the interval between this slit intended support rib 6.Insert and encase supporting leg 12 with isolating comb 14 along the direction of the arrow B indication of Fig. 2; Thereby make ribs 6 embed slit 16.Isolate the not scalloping bottom side of comb 14 and the interior side engagement of framework 1 then.Available bonding agent or staple make isolates comb 14 and couples together with framework 1.By the interval of preliminary election slit 16, the interval of filter bag 4 is adapted with the preliminary dimension of framework at an easy rate, consider and a lot of filter bags will be contained on the framework 1, thereby this kind method does not need automatic processing machine tool is carried out time-consuming replacement.Certainly, also can insert the isolation comb 14 that is plane form, a side that is about to have slit 16 is inserted, and then will isolate and comb 14 and curve U-shaped; Or as shown in Figure 1, earlier flat board is attached on the framework, make it bend towards ribs 6 then.

Fig. 8 is illustrated in situation about can't see among Fig. 1, extend on edge fold filter bag 4 and the narrow side at filter bag 4.This can separate the air of pollution fully with the air of filtering.The width of filter bag 4 represented by the T among Fig. 8, and corresponding with the interval of corresponding filter bag 4.

Fig. 9 illustrates the embodiment of another millboard.Identical with Fig. 3, the millboard 11 that illustrates ' be flat.The embodiment of Fig. 9 be not resemble have simple flap 12 shown in Figure 3 ', but have double-walled flap 12 ", 20.These double-walled flaps form by folding on crease 13 and crease 15.In this structure, the material clip of filter bag 4 is at flap 12 " and between 20, therefore can clamping continuously around the turning.As shown in figure 10, finish under the folding situation, filtering material 4 the narrow side of filter bag also by supporting leg 12 ', 20 center on, therefore take two intervals between the ribs 6.

Preferably select flap 12 like this ", 20 length so that the adjacent legs that forms on the corresponding flap docks mutually, thereby determine interval between the adjacent filter bag 4.

Filter bag 4 is by any suitable material, and the glass fibre, plastics or the paper material that for example resemble paper, fiber nethike embrane or carded web film and so on are made.Corresponding filter bag 4 is in the far-end sealing of ribs 6, described sealing or a kind of continuous structure, if perhaps filter bag 4 is made by discrete component, methods such as the then sewing by adapting with the filter bag material therefor of described sealing, bonding or welding form.

Supporting plate structure has another advantage, be that its permission filtering material band from continuous conveying under the situation of not doing any cutting is processed automatically, the filtering material volume directly can be delivered to the shaping and the folding station of rib, with when zigzag rib member 6 is folded itself, one is risen in the zigzag rib member 6 of invagination.Figure 11 illustrate the sidepiece 10 that folds into rib 6 and around the continuous nethike embrane 4 of central portion 9 ' part.The nethike embrane that is clipped in the there will have double-decker.Then, in ensuing production process, can for example carry out the side sealing-in to filter bag by bonding, sewing, Plastic Welding or similar technology.

In a kind of optimised form, framework 1 and rib 6 are to be made by the combustible material of hardboard or other cardboard type.Filter bag and being connected of various elements, rib, framework or the like are preferably used bonding agent.Such filter can wholely incinerate after being full of, and does not need to remove in advance any metal or plastic material.If the use staple then can separate itself and the ashes that obtain at last at an easy rate according to well-known, suitable operation.

For example framework 1 can, and the patent application No.08/394 that preferably submits to February 27 nineteen ninety-five by the inventor, illustrated the sort of type in 636.

In concept and range of the present invention, can make various changes and modifications, and can use together with other any feature in any feature of this explanation.

Claims

1. a filter that is used for mobile gaseous medium has:

Frame unit (1);

A plurality of by make with respect to described medium breathable material and to the filter bag (4) of the open placed adjacent of gaseous medium; And

The bag ribs (6) of parallel placement, its end be by described frame supported,

Wherein, according to the present invention,

Ribs comprises that zigzag folds rib member (6), and it is folded and be vertically fixed on the described frame unit (1) with sawtooth form by millboard (11,11 '); And

The gas permeable material of the described bag of wherein adjacent filter bag (4) be clamped in the folding rib member (6) of zigzag folding (9,10 '; 9,, 10 "; 9,10) between.

2. filter according to claim 1 is characterized in that, folding rib member comprises and rib member (6) meet at right angles substantially extension and the supporting leg (12) that links to each other with frame unit (1).

3. filter according to claim 2 is characterized in that, described supporting leg (12) and rib member (6) are to be made by the millboard (11,11 ') of an independent integral body.

5. filter according to claim 2 is characterized in that, selects the length of described supporting leg, thereby determines the common interval of described filter bag between mutually in the filter.

6. filter according to claim 2 is characterized in that, supporting leg is double-walled leg (12 ", 20), and

The part of described ventilative material is clamped between the double-walled leg (12 ", 20).

7. filter according to claim 1, also comprise comb (14) at interval, described interval comb (14) have thereon form, by between the adjacent filter bag of decision (4) at interval distance slit (16) separated from each other, described interval comb (14) abuts against on the framework (1), and accommodates the rib member in slit (16).

8. filter according to claim 1 is characterized in that, a central folding part of each rib component limit (9) and folding part, two sides (10 ', 10 ", 10); And

On cross section, central portion (9) than side surface part (10 ', 10 ", 10) long.

9. filter according to claim 1 is characterized in that, framework (1) comprises nonmetallic materials, can select hardboard.

10. filter according to claim 1 is characterized in that, filter bag is included in the continuous nethike embrane (4 ') of winding between a plurality of rib members (6), and the nethike embrane material is around the folding rib member guiding of indention continuously.

11. filter according to claim 10 is characterized in that, a central folding part of rib component limit (9) and two adjacent folding parts, side (10 ', 10 ", 10); And

Nethike embrane centers on central portion (9) winding continuously, and is clipped between the side surface part (10).