Blasting method and apparatus having abrasive recovery system, processing method of thin-film solar cell panel, and thin-film solar cell panel processed by the method

A blasting apparatus comprising:

• a space opposed-to a workpiece to be processed;
• a blast gun within said space, said blast gun having an injection hole opposed to a surface to be processed of said workpiece, and said injection hole being provided on said surface to be processed of said workpiece at a predetermined distance,
• wherein said workpiece is provided so as to be relatively moved with respect to said injection hole,
• said space has an opening and a suction device, and said opening is positioned so that a longitudinal direction is set to the same direction with a relative moving direction of said workpiece, and faced to at least one side edge of said workpiece,
• one end of said suction device is communicated with said space, and the other end of said suction device is communicated with a suction means, and said suction device sucks said space to make said space as a negative pressure space;
• and
• a blow nozzle faced to said surface to be processed of said workpiece through said opening and generating an inductive gas flow composed of a flow of a compressed gas so as to have a diffusing direction substantially parallel to said moving direction of said workpiece, wherein said blow nozzle and an injection hole of said blow nozzle are arranged at least one side of an orthogonal direction to the moving direction of said workpiece, and said suction device is communicated with said negative pressure space from a front side of said diffusing direction of said inductive gas flow to a leading end of said blast gun, for sucking and recovering a cut scrap and an abrasive from said negative pressure space.