JPH04243511A - Dust collecting filter of dust collector - Google Patents

Abstract

PURPOSE:To certainly collect dust and to keep dust collecting capacity for a long time by making it possible to wash a filter with a solvent. CONSTITUTION:Filter cloth 1 formed from a fiber having solvent resistance is formed into a bag-shape. The bag-shaped filter cloth 1 is attached to a retainer 2 keeping the filter cloth 1 cylindrical. The filter cloth 1 is immersed in a solvent at the time of clogging to make it possible to dissolve a resin by the solvent.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a dust filter used when a dust collector collects dust generated by crushing low softening point solidified resin.

0002

2. Description of the Related Art Generally, dust generated during crushing and bagging of resin is sucked through a dust collecting duct and collected in a dust collector. However, the dust collection filter of the dust collector is often clogged and has a lot of deposits, and cleaning it is extremely difficult. In particular, if the resin is a solidified resin with a low softening point, if the outside air temperature is not kept below 20°C, it will melt inside the dust collector and stick to the dust collection filter, causing clogging and impairing the dust collection ability. Also, it cannot be removed even by backwashing with air.

FIG. 2 shows a standard dust collection filter of a conventional dust collector. This is called a molded filter in which flanges b are provided at the upper and lower ends of a cylinder core a made of punched metal, and a furnace material c is formed in a zigzag pattern and is integrally attached between the upper and lower flanges b on the outer periphery of the cylinder core a. be. However, such conventional dust collection filters have the problem of being difficult to clean because they are molded filters, and they cannot be cleaned with solvents, so if the resin melts and clogs, the filters become unusable and must be disposed of. , even more expensive (
There is also the problem that the filter cost is high and the air conditioner is operated to keep the temperature low, which increases the cost of operating the air conditioner.

0004

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to facilitate cleaning with a solvent, ensure dust collection, and provide a long service life. To provide a dust collection filter for a dust collector that can maintain performance and can be made at low cost.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the dust collecting filter of the dust collector of the present invention has a filter cloth 1 formed of solvent-resistant fibers formed into a bag shape with one end open, and stored in a cylindrical shape. The filter cloth 1 is characterized in that the bag-shaped filter cloth 1 is held in a retainer 2 formed to have a shape.

[0006]

[Function] According to the above structure, when the filter cloth 1 becomes clogged, the filter cloth 1 can be washed with a solvent to remove the clog. Therefore, the filter cloth 1 can be easily washed, and the filter cloth 1 can be reused many times, making it possible to reduce the cost.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A filter cloth 1 is made of solvent-resistant fibers and is shaped like a bag with one end open. Materials for the fibers of the filter cloth 1 include Teflon, polypropylene, nylon, etc., and these have excellent acid resistance and alkali resistance. Retainer 2
is formed in an annular shape, and is held by wrapping the opening of the bag-shaped filter cloth 1 around the retainer 2. This retainer 2 is formed based on the dimensions of the standard filter described above. The filter cloth 1 is kept in a cylindrical shape with an auxiliary retainer 2a made of wire as necessary. By attaching the filter cloth 1 to the retainer 2, the filter cloth 1 can be made into a cylindrical shape with the retainer 2 and the auxiliary retainer 2a. It is designed to be retained. The dust collection filter constructed in this manner is attached to a dust collector, and the dust collector can be driven to collect dust. When the filter cloth 1 of the dust collecting filter is clogged and cannot be removed even by backwashing, the clogged dust collecting filter is removed and replaced with a spare dust collecting filter. The clogged filter cloth 1 is washed by immersing it in a solvent (for example, acetone, methanol, etc.). At this time, the resin dissolves in the solvent, so it can be cleaned cleanly. The washed filter cloth 1 can be dried and used again.

[0008]

Effects of the Invention As described above, the present invention makes a filter cloth made of solvent-resistant fibers into a bag shape with one end open, and attaches the bag-like filter cloth to a retainer formed to maintain a cylindrical shape. Because it holds the cloth, if the filter cloth becomes clogged that cannot be removed by backwashing, the filter cloth can be cleaned with a solvent to eliminate the clog, making cleaning easy and reliable. It is possible to reliably collect dust and maintain its performance for a long time, and the cost can be reduced because the filter cloth can be washed and reused.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of an embodiment of the present invention.

FIG. 2 is a perspective view of a conventional example.

[Explanation of symbols]

1 Filter cloth 2 Retainer

Claims (1)

[Claims] Claim 1: A filter cloth made of solvent-resistant fiber is shaped into a bag with one end open, and the bag-shaped filter cloth is held in a retainer formed to maintain a cylindrical shape. A dust collection filter for a dust collector featuring the following.