Wastewater recovery system for fly ash washing equipment

Abstract

A wastewater recovery system for a fly ash washing device includes a fly ash washing device comprising at least one washing module, which includes at least one fly ash reactor and at least one filter press. The feed end of the filter press is connected to the discharge end of the fly ash reactor. The filter press includes a plurality of filter press frames and a plurality of filter cloths respectively disposed within each filter press frame. The filter press has a wastewater discharge end connected to the fly ash reactor. A washing module is also included, which washes each filter press frame and each filter cloth, generating washing wastewater that flows into the wastewater discharge end. This invention collects and reuses the wastewater generated from washing the filter press, reducing water waste and the amount of sludge produced.

Claims

1. A wastewater recovery system for a fly ash washing device, comprising: a fly ash washing device including at least one washing module, the washing module including at least one fly ash reactor and at least one filter press, the feed end of the filter press being connected to the discharge end of the fly ash reactor, the filter press including a plurality of filter press frames and a plurality of filter cloths respectively disposed within each of the filter press frames, the filter press having a wastewater discharge end connected to the fly ash reactor; and a washing module that washes each of the filter press frames and each of the filter cloths to generate a washing wastewater, the washing wastewater flowing into the wastewater discharge end.

2. The wastewater recovery system of the fly ash washing equipment as described in claim 1, wherein there is a wastewater storage tank between the wastewater discharge end and the fly ash reactor.

3. The wastewater recovery system for the fly ash washing equipment as described in claim 1, wherein the fly ash washing equipment has a plurality of the washing modules connected in series.

4. The wastewater recovery system of the fly ash washing equipment as described in claim 3, wherein the wastewater discharge end of one of the filter presses is connected to the fly ash reactor of another washing module.

5. The wastewater recovery system of the fly ash washing equipment as described in claim 3, wherein each wastewater discharge end is connected to a wastewater storage tank, which is connected to each fly ash reactor.

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