A mixing silo for bulk material comprises a silo container, a mixing installation mounted in the silo container for mixing the bulk material, at least one shut-off element for shutting off the mixing installation, wherein the mixing silo has a minimum extraction rate and the silo container, with the mixing installation shut off, has a residual cross-sectional area which ensures a mass flow of the bulk material that is greater than or equal to the minimum extraction rate of the mixing silo.

A sink is configured to attach to a bottom surface of a flowline that is configured to flow a mixture of at least two immiscible fluids. One of the immiscible fluids is water. The water is more dense than the other of the at least two immiscible fluids. An outlet formed at a bottom portion of the sink. A valve system is connected to the opening. The valve system is configured to open the outlet in response to the water occupying at least a portion of the sink.

Mixing device 1, dosing container and mixing hopper for mixing a synthetic starting material with an additive, in particular a granular additive or additive in powder form, comprising a mixing housing 10 with an inlet 14 for allowing the substances into a mixing chamber 12 bounded by the mixing housing and an outlet 16 for discharging the substances from the mixing chamber in mixed form, wherein a rotor body 11 is provided on a rotatable shaft 17 in the mixing chamber and comprises on a side a number of rotor arms 18 extending parallel to the shaft in the direction of an opposite wall of the mixing housing 10, and wherein the opposite wall of the mixing housing is provided with a number of stator arms 19 extending parallel to the shaft in the direction of the rotor body, and wherein a mixing hopper is provided having an infeed side for receiving a flow of the substances for mixing and an outfeed side which is in open communication with the inlet of the mixing housing 10, and wherein a dividing body is provided between the infeed side and outfeed side in order to divide the flow of the substances for mixing into a number of at least substantially equal part-flows.

A solid material mixer for mixing two or more solid materials does not require the use of external power sources and moving parts. The mixer includes at least a first chamber or tank, at least one second chamber or tank, one or more main valves and one or more mixing and homogenizing zones. The device is used in a mixing method.

A solid material mixer for mixing two or more solid materials does not require the use of external power sources and moving parts. The mixer includes at least a first chamber or tank, at least one second chamber or tank, one or more main valves and one or more mixing and homogenizing zones. The device is used in a mixing method.

According to one embodiment a solid component mixing apparatus is provided that includes a mixing device, a first dosing device for supplying sand and a second dosing device for supplying a solid additive that are communicated with the mixing device. The mixing device includes a vertical mixing chamber with a rectangular cross-section, the contour of the chamber being formed by four side walls, such that two side walls opposite one another are wider than the other two walls. The chamber includes a first inlet communicated with the first dosing device and a second inlet communicated with the second dosing device, the second inlet being at a lower height than the first inlet, and the second inlet being arranged in one of the wider side walls of the chamber. Associated mixing methods are also provided.

A production method for producing a particle mixture in which two or more types of particles are mixed, including a step of adding a first additive to first particles and mixing the first additive with the first particles using a first mixer and a step of introducing the two or more types of particles including the first particles mixed with the first additive and second particles into a blender container of a gravity blender, and mixing the two or more types of particles inside the blender container.

An additive feeder assembly includes a supply reservoir having an outlet and an outlet tube having a first end in fluid communication with the outlet and a second end located vertically higher than the supply reservoir. An air stream transports a first granular material discharged from the supply reservoir and into the first end of the outlet tube to the second end of the outlet tube. A granular material distributor is in fluid communication with the second end of the outlet tube. The granular material distributor has a top end configured for attachment to a feed supply for a second granular material, a central portion located vertically below the top end and configured to mix the first granular material and the second granular material, and a bottom end configured for vertically discharging the mixed first granular material and second granular material.

A method for the manufacture of foamed plaster utilizing a mixture of powdered casting plaster, powdered limestone and hemp fibre. The mixture is fed into a Venturi apparatus (40) under the influence of gravity. Compressed air may be supplied to the Venturi apparatus (40) through an inlet pipe (41) causing air and solid particles to be sucked into the Venturi apparatus (40). The elongated tube is provided with an inlet nozzle arranged to receive a mixture of water mixed with detergent agents. Further, the tube (50) is provided with an inlet nozzle (56) arranged to receive compressed air such that the elongated tube (50) delivers the mixture to a mixing and spray head (60) so as to feed the resulting mixture to a moulding means.

An additive feeder assembly includes a supply reservoir having an outlet and an outlet tube having a first end in fluid communication with the outlet and a second end located vertically higher than the supply reservoir. An air stream transports a first granular material discharged from the supply reservoir and into the first end of the outlet tube to the second end of the outlet tube. A granular material distributor is in fluid communication with the second end of the outlet tube. The granular material distributor has a top end configured for attachment to a feed supply for a second granular material, a central portion located vertically below the top end and configured to mix the first granular material and the second granular material, and a bottom end configured for vertically discharging the mixed first granular material and second granular material.