A storage and mixing device for two-component polymethyl methacrylate bone cements having a cylindrical interior of a cartridge that is delimited on a front side by a cartridge head, a plunger arranged to be axially movable in the cylindrical interior of the cartridge and spaced from the cartridge head, a powdery first parent component of the bone cement, that is contained in the interior between the plunger and the cartridge head, a feed-through arranged in the cartridge head or in the cylinder barrel of the cartridge between the plunger and the cartridge head. The feed-through is connectable to a fluid line, a receptacle for a monomer liquid, wherein the fluid line connects the feed-through to the receptacle in a liquid-permeable manner, and a press-out device pushable into the receptacle, so that monomer liquid is pressable out of the receptacle into the fluid line. The plunger (2) is spaced from a back side of the cylindrical interior, located opposite the front side, so that, by moving the plunger in the direction of the back side, the press-out device is pushable into the receptacle and a reduced pressure is producible in the interior of the cartridge between the plunger and the cartridge head.

The present invention consists in a reactor, a system and a method to process products such as polymers, where the reactor is formed by a vertical structure made up by a concentric ferrous inner tank and an external tank opened by the lower end, between which a jacket is arranged, where said reactor comprises: an upper lid; at least an inlet for material; an overhead valve in the at least inlet duct for material; at least one chimney; a stirring unit comprising a vertical axis connected to: a plurality of main blades fixed to it in a perpendicular way; a set of secondary blades perpendicularly joint to a sub-axis connected in angle to said vertical axis; a structure of lower blades; a discharge element comprising an opening and closing valve connected to a tray; and an air inlet located in one of the faces of the external tank.

The system includes a cup, a lid, a stir, and one or more bags. The cup is configured to hold fluids. The lid includes a top portion and a bottom portion configured to couple to and cover an open portion of the cup. The stir includes a knob, a longitudinal shaft, and a distal shaft extending outwardly from the longitudinal shaft. The knob is disposed on the top portion of the lid and coupled to the longitudinal shaft threaded through the bottom portion of the lid. The one or more bags are coupled along the length of the longitudinal shaft.

A container for bone cement includes a first member defining a chamber, which contains a first ingredient. The chamber also includes a second member movably coupled to the first member. The second member includes a mixing device that is movably disposed within the first chamber, and the second member defines a second chamber containing a second ingredient. The container additional includes an opening device that selectively opens the second chamber and allows the second ingredient to enter from the second chamber into the first chamber. The mixing device is movable within the first chamber to promote mixing of the first ingredient and the second ingredient to prepare the bone cement. A corresponding method of preparing bone cement is also disclosed.

A blender has a mixing chamber for reception of materials to be blended. A mixing screw is mounted at a bottom of the mixing chamber for mixing materials within the mixing chamber and delivering mixed materials to an outlet feeding a processing line. The blender has a plurality of material handling compartments. One or more cleaning air jets are provided in each material handling compartment. The cleaning air jets are operable to direct material towards an outlet of the compartment. Each cleaning air jet is connected to a pressurised air supply through a valve which controls delivery of pressurised air to the cleaning air jet.

Some embodiments of the disclosure provide systems and methods for a bearingless hydraulic rotary stirring water distributor. According to an embodiment, the bearingless hydraulic rotary stirring water distributor includes a rotary inlet pipe, stirring pipes, water distribution pipes, a ball head shaft, a fixed inlet pipe, a bowl seat, a first seal ring, and a second seal ring. The stirring water distributor is vertically mounted, the fixed inlet pipe is vertically arranged and inserted into the rotary inlet pipe, the fixed inlet pipe and the rotary inlet pipe are mechanically sealed through the seal rings therebetween, the rotary inlet pipe is a vertically mounted pipe, and the rotary inlet pipe is vertically mounted in a semispherical groove of the bowl seat through the ball head shaft mounted at one end of the rotary inlet pipe.

Bone cement applicators and methods for application of a bone cement dough, the applicators and methods comprise a tubular cartridge with an internal space, a dispensing plunger for expelling the starting components through an opening of the cartridge opposite from the dispensing plunger, wherein the dispensing plunger is mobile in longitudinal direction in the internal space of the cartridge. The applicators and methods further comprise a hose, an application opening, a three-way valve operable from outside and arranged or arrangeable in the hose or on a side of the hose facing the cartridge, and a collecting container arranged on the three-way valve. The three-way valve is designed and arranged or arrangeable in the applicator such that it, being in a first position, provides a fluid connection between the application opening and the opening of the cartridge and closes a feed-through to the collecting container and, being in a second position, provides a fluid connection between the application opening and the collecting container and closes a passage to the opening of the cartridge.

A mixing apparatus has a chemical moving part, a motor, a paddle, and a plate. The chemical moving part is configured to receive and output a chemical in a pipe. The motor is configured to rotatably drive a shaft coupled to the motor at a first end of the shaft. The shaft defines a central rotational axis. The paddle is connected to a second end of the shaft and configured to rotate with the shaft. The plate is configured to secure the motor to the pipe and has a first side facing the motor and a second opposite side facing a projection of the paddle. The first side defines a first length extending in a direction perpendicular to the shaft and the second side defines a second length extending in a direction perpendicular to the shaft. The first length is greater than the second length.

A container for bone cement includes a first member defining a chamber, which contains a first ingredient. The chamber also includes a second member movably coupled to the first member. The second member includes a mixing device that is movably disposed within the first chamber, and the second member defines a second chamber containing a second ingredient. The container additional includes an opening device that selectively opens the second chamber and allows the second ingredient to enter from the second chamber into the first chamber. The mixing device is movable within the first chamber to promote mixing of the first ingredient and the second ingredient to prepare the bone cement. A corresponding method of preparing bone cement is also disclosed.

This invention belongs to the field of biomass energy utilization at the large scale. A material stirring device for a biomass bin includes a transmission mechanism, a main stirring mechanism, and an auxiliary stirring mechanism. The main stirring mechanism includes a cylinder connected to the transmission mechanism. The outer wall of the cylinder is provided with a hollow stirring rod. The auxiliary stirring mechanism includes a rotating shaft vertically penetrating through the hollow stirring rod. Both ends of the rotating shaft are provided with stirring blades and the rotating shaft is connected to the transmission mechanism. That the stirring device is easily damaged due to too high density of the biomass material is overcome through the automatic conversion adjustment of the main and auxiliary stirring mechanisms. The continuous discharge efficiency of the biomass bin is improved by the organic integration of over and partial stirring.