Mining, aggregate and industrial minerals industries. ... ® washing equipment. Sand washers/sand screws. ® TSW Series sand washers ® sand washers or sand screws are a simple method to cost effectively, clean, classify and dewater fine granular material.
Sep 07, 2018· Most penalties were in the range of 4,000 to 6,000 per violation, agency records show. Huberty, the Kingwood state legislator, pointed to best practices for sand and gravel mining in Louisiana as a possible model for Texas.