| 摘要 |
A dust-collecting apparatus is provided to remove dust sticking to a lower portion of each cylindrical filter fabric efficiently, by installing a dust-removing unit at the lower portion of the cylindrical filter fabric. An adsorption pipe(3) is fixed to an upper portion of a housing(1), wherein the adsorption pipe adsorbs mixture air and inputs the adsorbed air into the housing. A plurality of cylindrical filter fabrics(5) filters off dust contained in the mixture air, which is inputted into the housing. A plurality of square cases(7) are disposed at a lower side within the housing. Each of the square cases supports a group of cylindrical fiber fabrics disposed on the same row. A discharge pipe(8) is fixed to a lower portion of the housing. The discharge pipes communicates with ends of respective square cases so that purified air passed through the cylindrical filter fabrics is discharged to the outside of the housing. A first dust-removing unit(9) jets high-pressure air above the cylindrical filter fabrics so as to remove dust, which sticks to the cylindrical filter fabrics. A second dust-removing unit is installed at each of the square cases. The second dust-removing unit jets high-pressure below the cylindrical filter fabrics so as to remove dust, which sticks to the cylindrical filter fabrics. Further, the first and the second dust-removing units contain at least one air compressor.
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