Abstract: A pulse valve for generating a high-volume pulsating fluid stream from a fluid supplied to the pulse valve from a pressure-generating unit. Window cut-outs are disposed opposite one another in pairs, in a housing wall, and form a first channel for conducting a constant, stationary sub-stream, a second channel for generating a second sub-stream that forms a basic pulse component, and a third channel for generating a third sub-stream that forms an additional pulse component. A rotatable rotor shaft disposed in the interior of the housing is provided with respective rotor blade assemblies associated with the second and third channels respectively. Upon rotation of the rotor shaft, the rotor blade assemblies, in cooperation with boundary edges of the window cut-outs of the second and third channels, periodically either allow a fluid stream impinging on the pulse valve to pass through the housing, or to interrupt such passage.

Abstract: An air jigging machine for dry processing of raw materials, an air supply conduit for supplying working air to an air funnel, and having a pulsing valve. At least two jigging-material carriers for receiving material from a material-feeding mechanism are configured to consecutively receive therethrough working air from the air funnel and to separate the material into heavy and light material layers. The jigging-material carriers are disposed one above the other and are spaced apart. A wall encloses this intermediate space. At least one bypass airline branches off from the air supply conduit downstream of the pulsing valve, bypasses the lower jigging-material carrier, and communicates with the intermediate space for supplying an additional working airflow thereto. Respective discharge devices are provided for the jigging-material carriers for the material layered thereon during a jigging process.

Abstract: A pulse valve for generating a high-volume pulsating fluid stream from a fluid supplied to the pulse valve from a pressure-generating unit. Window cut-outs are disposed opposite one another in pairs, in a housing wall, and form a first channel for conducting a constant, stationary sub-stream, a second channel for generating a second sub-stream that forms a basic pulse component, and a third channel for generating a third sub-stream that forms an additional pulse component. A rotatable rotor shaft disposed in the interior of the housing is provided with respective rotor blade assemblies associated with the second and third channels respectively. Upon rotation of the rotor shaft, the rotor blade assemblies, in cooperation with boundary edges of the window cut-outs of the second and third channels, periodically either allow a fluid stream impinging on the pulse valve to pass through the housing, or to interrupt such passage.

Abstract: An air jigging machine for dry processing of raw materials, an air supply conduit for supplying working air to an air funnel, and having a pulsing valve. At least two jigging-material carriers for receiving material from a material-feeding mechanism are configured to consecutively receive therethrough working air from the air funnel and to separate the material into heavy and light material layers. The jigging-material carriers are disposed one above the other and are spaced apart. A wall encloses this intermediate space. At least one bypass airline branches off from the air supply conduit downstream of the pulsing valve, bypasses the lower jigging-material carrier, and communicates with the intermediate space for supplying an additional working airflow thereto. Respective discharge devices are provided for the jigging-material carriers for the material layered thereon during a jigging process.