US 5,398,386 A · Process for rejuvenating baghouse filter cartridges

Abstract

A Process and apparatus for rejuvenating baghouse filter cartridges. The first step in the process is passing cartridges from a baghouse through a cutting chamber, slitting the bags from the cages. The cutting chamber comprises a water knife angularly disposed in the wall of a tubular housing. The angle of the water knife and the size of the water knife's jet are varied according to the composition of the bags. The second step is repairing damaged cages. Bent cages are mounted upon a rigidly mounted mandrel and compressed between two hemicylindrical dies of a translational press. Broken welds on the cages are rewelded. In the last step new bags are installed on the cages. The cage is positioned over an open ended tubular manifold, and a new bag is started onto the end of the cage. Slightly pressurized, high volume, warm air pumped through the manifold inflates the bag, and the inflated bag is then pulled over the rest of the cage. The specially designed equipment to carry out the process is transported on and deployed in conjunction with a trailer having several specialized structures.

Claims15

Dependent claims

A process for rejuvenating baghouse filter cartridges comprising a filtration bag disposed on an elongated cage, said process comprising the steps of::

(a) slitting the filtration bags, employing pressurized liquid to cut said filtration bags, and removing them from said cages;
(b) preparing said cages to receive new filtration bags by;
(1) separating undamaged cages;
(2) straightening bent cages;
and,
(3) rewelding broken welds on said cages;
and,
(c) installing a new filtration bag on each cage.

5 more elements

Dependencies are inferred from the claim text.

Process for rejuvenating baghouse filter cartridges

Life of this patent

Process for rejuvenating baghouse filter cartridges

Life of this patent

Abstract

Claims15