Device of removing trash and dust from raw cotton before carding in the preparatory by applying a high-voltage static electricity

A device for removing trash and dust from raw cotton before carding, comprising:

• a longitudinally extended housing;
• a pair of non-conductive plastic plates disposed on opposing longitudinal end of said housing, one of said pair of plastic plates having a trumpet-shaped inlet and the other of said pair of plastic plates having a trumpet-shaped outlet for passing raw cotton therethrough;
• a pair of copper plates extending longitudinally within said housing between said pair of plastic plates in spaced parallel relationship, said pair of copper plates being spaced one from the other within an approximating range of 5-15 cm, each of said pair of copper plates having a plurality of holes formed therethrough, each of said plurality of holes having a diameter within an approximating range of 4-8 mm and each of said pair of copper plates having a thickness in an approximating range of 1-5 mm;
• a source of static electricity connected between said pair of copper plates, said source of static electricity having a voltage within an approximating range of 30-60 kV;
• and,
• a pair of suction pumps connected respectively to an upper and a lower portion of said housing, said pair of suction pumps providing a suction in an approximating range of 30-100 Pa for removing trash and dust from the raw cotton.