The invention discloses a manifold
system for a sand blender, which comprises a suction header
welding assembly, a
discharge header
welding assembly, a suction manifold, a
discharge manifold, a suction
centrifugal pump (15), a
discharge centrifugal pump (14), butterfly valves and a sand blending tank (16). Two ends of the suction
centrifugal pump (15) are connected with the suction header
welding assembly and the suction manifold, the suction manifold is connected with the sand blending tank (16), two ends of the discharge centrifugal pump (14) are connected with the sand blending tank (16) and the discharge manifold, and
electromagnetic flow meters (17) are respectively disposed on outer circle surfaces of the suction manifold and the discharge manifold. The manifold
system is characterized in that the sixth
butterfly valve (6) with a pneumatic head device and the thirteenth
butterfly valve (13) with a pneumatic head device are disposed on the suction manifold, the twelfth
butterfly valve (12) with a pneumatic head device and the fourth butterfly valve (4) with a pneumatic head device are disposed on the discharge manifold, and the butterfly valves (1, 5, 9, 3, 7 and 10) with pneumatic head devices are arranged on the suction header welding assembly and the discharge header welding assembly. A double-suction and double-discharge
operation mode can be realized, flexibility of field operation is improved, and the manifold
system brings great convenience for field
layout and construction.