Cartridge element for dust collector

Abstract

A cartridge element and a dust collector is provided that can achieve a decrease in the size of a dust collector using a cartridge element, can effectively disperse dust, can be easily used, and has a simple structure. The cartridge element is a plate-type element and comprises a planate filter 1 composed of a cylindrically-formed pleated filter medium, a cap 2 that maintains the pleats and the opening of it in a planate shape, an upper-end member 3, and a reinforcing material 4 that is made by pipes or a round bar that is made by resin.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a cartridge element for a dust collector, a mechanism to attach and detach the cartridge element, and a dust collector using the cartridge element. DESCRIPTION OF THE PRIOR ART [0002] A cylindrical cartridge element used in a dust collector is in the public domain (e.g., see Japanese Patent Laid-open Publication No. 2001-269528, FIG. 1). However, the cylindrical cartridge elements made many open spaces when they were installed in a dust collector, and so it was a problem in that the rate of the use of the space by the cartridge elements was low. [0003] A conventional method for attaching cartridge elements to a dust collector is to provide a flange at one end of each cartridge element and to fix each flange by bolts to the dust collector with a packing (e.g., see Japanese Utility-Model Laid-open Publication No. S58-132524, FIG. 3). [0004] However, the method for attaching as described in Japanese Utility-Model Laid-open ...

AI Technical Summary

Benefits of technology

[0022] The transverse pipe fixed on the reinforcing material that is used by being inserted into the planate filter can disperse the air to disperse the dust on the planate filter during the backwash of it.

[0024] In this invention, as described above, since the cartridge element is a plate-type, the rate of the use of the space by the cartridge elements in a dust collector is increased, and the filtration area of it will be greater than that of a conventional dust collector, if they are the same size, and the dust collector will accordingly be compact.

[0028] As described above, since the mechanism to attach and detach the plate-type cartridge element of the dust collector of the invention comprises guiding members that are fixed under the bottom of a duct at intervals and have inclined elliptic holes, rails that are fixed in the guiding members and have connecting holes corresponding to the inclined elliptic holes, coupling devices that couple the guiding members to the rails by penetrating the inclined elliptic holes and the connecting holes, and cartridge elements that are installed between the rails and supported by the rails, the invention can have effects such that the cartridge elements can be easily attached and detached in a short time and the cost for manufacturing the dust collector can be decreased.

[0032] Since the dust collector of the invention has plate-type cartridge elements, each of which comprises a filter that is composed of two sheets of pleated filter medium being opposed to, and spaced apart from, each other, one end of the filter being closed and the other end of it being open, the cartridge elements being installed in the dust collector so that the successive edges that are shaped like ridges of the pleated filter medium appear to be vertical stripes, wherein the dust collector comprises filtering chambers that are stacked and communicate with each other and communicate with the entry of air with dust, a duct that communicates with the inside of the filters through the openings of the filters, plate-type cartridge elements that are installed in the filtering chambers and are attached on the ducts and can easily be attached and detached, purified-air chambers that communicate with the duct, an air-suctioning means that communicates with the purified-air chambers, and a pulse-jet mechanism that intermittently feeds compressed air inside the filters, the invention can achieve effects such that the rate of the use of the space by the cartridge elements can be increased, the installation space for the dust collector can be decreased, and the efficiency of filtering can be increased.

[0035] As stated above, since the pulse-jet-type dust collector of the invention has a cartridge element comprising a filter that has a cylindrical shape, one end of the filter being closed and the other end of it being open, wherein the dust collector comprises a hollow duct, one end of which is closed and the other end of which is open, wherein the cartridge element is attached on the duct and can easily be attached and detached, wherein a pulse-jet mechanism intermittently feeds compressed air inside the filter, the invention can achieve effects such that the drop of the discharge pressure can be restrained and the filter medium can be changed efficiently in a short time.

Problems solved by technology

However, the cylindrical cartridge elements made many open spaces when they were installed in a dust collector, and so it was a problem in that the rate of the use of the space by the cartridge elements was low.

S58-132524 has a problem in that the method may not tightly seal the flange if the pitch of the bolting is great.

Accordingly, the method has a problem in that the work for fixing takes a long time, and the cost of manufacturing the dust collector is also high.

Even when bolts are not used for fixing the flange, so as to ensure a sufficient airtightness, it has a problem in that the cost of manufacturing is great because a flange with a complicated shape may be needed, or an external force (e.g., an air cylinder, an electric motor, etc.) may need to be used.

However, the dust collector that uses the cylindrical cartridge element disclosed in Japanese Patent Laid-open Publication No. 2001-300237 has a problem in that when the elements are installed in the dust collector, since the elements are cylindrical, there exist many spaces between these elements, and so the rate of the use of the space by the elements is low.

Since many of the elements are needed, if the rate of the use of the space by the collector is low, the dust collector will need to have a wide space, and it will have a problem in that it will need more space to install it when the elements are placed vertically (they can be expanded vertically) as disclosed in Japanese Patent Laid-open Publication No. 2001-300237.

However, in this case, there might be a problem in that the efficiency of filtering could be lowered, because the direction of the pleats of the elements would be at right angles to the direction of the movement of the dust (vertical direction).

Therefore, the longer the air piping is, the greater the pressure loss through the piping becomes.

The apparatus has the problem in that the cost of equipment such as that for compressors is higher.

In this case, whenever the filter medium is changed, the air pipes from the air jet nozzle to the air valve must be dismantled, and if the dust collector is large, since they are long, and there are many of them, its working efficiency is not good and the work takes a very long time.

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