| 摘要 |
<p>1. Purification plant for the chemical cleaning of objects made of fabric, for example clothing, with a treatment chamber formed for example of a rotatable cylinder connected to a solvent cycle comprising a solvent conveying device and a dirt filtering device, whereby the housing of the dirt filtering device has an entrance chamber with a solvent inlet and an exit chamber with a solvent outlet and has in the flow path in between a dirt filter having a flat form and whereby for the drying of the filtrate in the case of the separate conveyance of solvent the dirt filter can be perfused with air from the entrance chamber to the exit chamber by means of an air conveying device, characterised in that a back flush device (28) is arranged in the entrance chamber (14), said device having at least one back flush body (29) which can be mounted on the upper side of the dirt filter, and when so mounted is tight against the entrance chamber (14) and movable by means of the dirt filter (9), said back flush body having, on its underside directed towards the dirt filter (9), a back flush opening (30) via which, during the flow of the solvent, particles of dirt settling on the dirt filter (9) are removed which get back into the solvent cycle via a back flush duct (31) connected with the back flush opening (30) and in that the dirt filtering device (8) comprises a heating device (46, 47).</p> |
