| 摘要 |
A removable, reusable, pleated woven wire filter for removing particulate material from a heavy coker gas oil process stream. The filter comprises: (a) a perforated core; (b) a pleated woven wire filter media wrapped around the perforated core, the filter media having spaced apart pleats and an external filter media surface comprising the external peaks of the pleats; (c) a stainless steel flattened expanded metal shroud adjacent to and encircling the external peaks; and (d) top and bottom end caps connected to the stainless steel flattened expanded metal shroud, and sealed against top and bottom ends of the filter media with a stainless steel adhesive sealant rated at 2,000 degrees Fahrenheit. The process stream operates between 300 and 800 degrees Fahrenheit, and between 150 psig and 500 psig. The filter can withstand a backwash purge pressure from 100 psig to 200 psig.
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