CZ252899A3 - Filtering bag basket - Google Patents

Abstract

The filter bag basket (10) is modularly constructed of end caps (12, 14), circumferential rings (18), and longitudinal wires (16) which are individually manufactured with fastening joints (20) to allow later assembly. These components can then be transported and stored in an unassembled bundle and unassembled up to the point use.

Description

Technical field

The present invention relates to a filter bag basket, in particular a filter basket which is modular and can be assembled on site.

BACKGROUND OF THE INVENTION

Filter bags made of textile filter media are used in various types of industry to remove particulate materials from gas streams. In many applications, these filter bags are carried by a wire basket or similar support mechanism. This wire basket serves to keep the filter bag open during the filtration cycle, which usually takes place under vacuum. Such wire baskets can be up to twenty-seven feet long (approximately 8.23 meters) and even longer for some applications. Wire baskets are manufactured using longitudinal steel wires with alternately interspersed circumferential wires and top and bottom caps. Steel wires and other components are welded together using specialized equipment and are supplied as welded units.

It is clear that the assembled filter bag basket will have a large volume, but will be constructed of a relatively small amount of material relative to the total filter bag basket volume. Typically, the filter bag basket is constructed of metal wire that has been welded together at the manufacturing site. This results in a cumbersome arrangement that is difficult to transport from the manufacturing site to the use site and is highly susceptible to damage during transport.

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Similar problems exist when storing such filter bag baskets frequently. Due to the size of the filter bag baskets, it has often been necessary to choose between costly indoor storage or cheaper outdoor storage, but which exposes the filter bag baskets to particles and damage.

It is therefore an object of the present invention to provide a filter bag basket that does not have a cumbersome arrangement during transport from the manufacturing site to the use site.

Another object of the present invention is to provide a filter bag basket that can be shipped with a reduced likelihood of damage during transport.

Yet another object of the present invention is to provide a filter bag basket that can be stored with a reduced volume.

Yet another object of the present invention is to provide a filter bag basket that substantially does not have an increased cost in the manufacturing process.

SUMMARY OF THE INVENTION

The above and other objects of the present invention are achieved by providing a filter bag basket that is modular, usually assembled of longitudinal steel wires or similar carriers, peripheral rings and end caps, including fasteners. The filter bag basket of the present invention is manufactured as a plurality of discrete wires with suitable mounting means for later assembly into the filter bag basket. This plurality of separate wires, with attached mounting means, is supplied in a compact manner

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arrangement at the place of use. At the point of use, the user then assembles the wires into the basket of the filter bag.

Other objects and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings and from the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 shows a side view of a conventional filter bag application that utilizes either a prior art filter bag basket or a filter bag basket of the present invention;

Giant. 2 shows a side view of a conventional filter bag basket according to the prior art;

Giant. 3 shows a side view of a conventional filter bag basket according to the present invention;

Giant. 4 is a cross-sectional view taken along line 4-4 in FIG. 3 of a conventional filter bag basket of the present invention;

Giant. 5 shows a side view of a conventional fastening joint according to the present invention;

Giant. 6 is a front view of a conventional peripheral circle of a filter bag basket according to the present invention;

Giant. 7 shows a side view of a conventional peripheral circle of a filter bag basket according to the present invention;

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Giant. 8 shows a side view of a conventional longitudinal wire of a filter bag basket according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION

In the drawings, in several views, the same elements are designated with the same reference numerals. Giant. 1 illustrates a typical use of a filter bag basket that utilizes either a prior art filter bag basket or a filter bag basket of the present invention. The collecting vessel 200 comprises a lower side inlet port 201 into which a particulate stream to be filtered is supplied. A plurality of filter bag baskets 202, 203, 204, 205 carry a corresponding amount of filter bags 206, 207, 208, 209 so as to expose the filter bags 206, 207, 208, 209 against the particle flow and to prevent the filter bags 206, 207, 208 from collapsing. The particulate stream is filtered as it passes through the filter bags 206, 207, 208, 209. The filtered stream then passes out through the upper side outlet port 210. The filtered particles accumulate on the filter bags 206, 207, 208, 209 and optionally fall into the inverted conical bottom portion 211 of the receptacle 200 to be removed by the cleaning device 212.

Giant. 2 illustrates a conventional filter bag basket 202 of the prior art. The filter bag basket 202 comprises opposed hollow circular or annular end caps 214, 216 with longitudinal wires 218 stretched therebetween. Further, the longitudinal wires 218 are supported by intermediate circular peripheral rings 220 (shapes other than circular shapes may be used for some applications). All components of the filter bag basket 202 are typically metal s and are welded together during the original manufacture and are subsequently transported, stored and installed.

Giant. 3 illustrates a conventional filter bag basket 10 of the present invention with end caps 12, 14, longitudinal wires 16, and circular peripheral circles 18 in a similar orientation to that shown in FIG. 2 (end caps 12, 14 may be omitted in some applications). However, the various components here are not welded together, but are held in place by fastening Cxh connections 20 (described below with reference to FIG. 5). This allows (optionally) end caps 12, 14, longitudinal wires 16, and circular circumferential rings 18 to be individually manufactured and subsequently transported and stored as an unassembled bundle to the point of use. At the point of use, the installer assembles the various components and secures these components together using the fastening joints 20, and then installs the resulting filter bag basket 10 in an arrangement similar to that shown in Figure 1.

Giant. 4 is a cross-sectional view taken along line 4-4 of FIG. 3, showing in particular the resulting relationship of the longitudinal wires 16 and the circumferential circles 18.

Giant. 5 illustrates conventional fastening joints 20 (those skilled in the art will readily appreciate that other fastening joint arrangements are possible) used to connect circular (or otherwise shaped) circumferential circles 18 or end caps 12, 14 to straight longitudinal wires 16. Circular wire portion which forms the circumference of the circumferential rings 18 or end caps 12, 14 is connected to the rectangular portion 9

9 9 999 99 with bottom notch 2 6. The longitudinal wire 16 is connected to a guide portion 28 which is complementary with bottom notch 2 6 of the rectangular part 24. The guide portion 28, which is connected to the elongate wire 16, fits into the bottom notch 26 of the rectangular portion 24, which is connected to the circumferential ring 18 or end cap 12 or 14. The screw 30 or similar fastener then passes through the rectangular portion 24. and a guide portion 28 thereby fastening the longitudinal wires 16 to the circumferential rings 18 or end cap 12 or 14.

Giant. 6 and 7 show a front and side view respectively of a typical circumferential ring 18 (which may be circular or of other shapes) of the filter bag basket 10 of the present invention. The rectangular portions 24 of the fastening joints 20 are spaced periodically around the circumference of the circumferential ring 18 for fastening the guide portions 28 of the fastening joints 20, thereby supporting the longitudinal wires 16.

Giant. 8 illustrates a typical longitudinal wire 16 with guide fastening portions 28 spaced periodically along its length for fastening to the rectangular portions 24 thereby supporting the circumferential rings 18.

To use the filter bag basket 10 of the present invention, end caps 12, 14, longitudinal wires 16, and circular (or otherwise shaped) circumferential circles 18 are individually manufactured at the manufacturing site and subsequently transported and stored as an unassembled bundle; using the fastening joints 20 as described above, resulting in the filter bag basket 10 of Figure 3, which is then installed, with its typical installation shown in Figure 1.

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Thus, the above-mentioned objects and advantages of the present invention are achieved in a very efficient manner. Although one preferred embodiment of the present invention has been described herein, it should be understood that the invention is in no way limited by this embodiment, and its scope is primarily determined by the content of the appended claims.

Represented by:

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List of reference characters filter bag basket end cap end cap longitudinal wire perimeter ring fastening joint rectangular section notch guide portion screw

200 collection container

201 lower side inlet

202 filter bag basket

203 filter bag basket

204 filter bag basket

205 filter bag basket

206 filter bag

207 filter bag

208 filter bag

209 filter bag

210 upper side exit port

211 lower part

212 cleaning equipment

214 end cap

216 longitudinal wire

220 circumferential circle

Claims (5)

PATENT CLAIMS PV:: :: a * and * and * * * in the 1, characterized in that the plurality of longitudinal wire members and the plurality of support members are manufactured separately for on-site assembly. A filter bag basket comprising: a plurality of elongate wire members; a plurality of supporting elements, characterized in that. a plurality of elongate wire members comprising a first portion of fasteners, a plurality of carrier members comprising second portions of the fasteners to engage respective first portions of the fasteners, and the first and second portions of the fasteners are connected to form a filter bag alignment of the plurality of longitudinal wire members . 2, characterized in that the plurality of longitudinal wires are supported perpendicular to the plurality of support elements. Filter bag basket according to claim 3, wherein the second portions of the fasteners comprise a rectangular portion perpendicular to the elements, the rectangular portion further comprising a notch, and the first portions of the fasteners comprise a guide portion complementary to said notch, the guide portion being parallel to the longitudinal wires. • · Filter bag basket according to claim Filter bag basket according to claim 1 4, wherein the connecting elements further comprise means for securing the first portion of the connecting elements to the second portion of the connecting elements. ⁵ 6. The basket filter bag according to claim Filter bag basket according to claim 5, characterized in that the support elements comprise end cap elements for engagement near the ends of the longitudinal wires.