Abstract: A continuous process for the production of dried superabsorbent polymers (SAPs) the polymerization reaction is carried out either in an initially homogenous aqueous monomer solution (bulk aqueous solution polymerization) or in a heterogeneous water-in-oil reactant mixture (reverse phase suspension or emulsion polymerization) within a continuous closed polymerization reactor, then the resulting polymer gel is dried within a continuous moved bed in a closed dryer, avoiding the needs of standard intermediate maturity tank(s).

Abstract: A method for carrying out homogenous polymerization reactions in a reactor, wherein monomers and/or prepolymers are fed (apportioned). In a first step, an initiator is optionally admixed with the monomer and/or prepolymer. In a second step, once viscosity is substantially higher, a solvent is added thereto and/or the monomer itself is partially evaporated, it is condensed externally and/or internally and fed back into the reactor.

Abstract: A device for float mounting a sealed housing around a rotating, deflecting shaft. A sealed housing is connected to a static part in such a way that it can yield radially as well as rotate around a shaft axis at least to a small extent.

Abstract: A kneader mixer comprises at least two axial-parallel rotating shafts, each of the shafts having a plurality of kneading-transporting elements axially spaced on the shaft and separated from each other on the shaft by a tubular section.

Abstract: In the case of a mixing and kneading apparatus for the, in particular, thermal treatment of products in the liquid, pasty and/or pulverulent state, with or without the supply and discharge of gases and vapors, in a housing (1), a shaft (2) rotating in said housing and having disk segments (3) or similar disc-like elements arranged on it, which segments or elements interact with mating kneading elements (7) fixed on the housing, the intention is to form, between the mating kneading elements (7), and between the mating kneading elements and the disk segments, an open space (12) in which a mixing arm (14) engages from the shaft (2). In this case, mixing arms (14) of different configurations engage in the open space (toric space 12) from the shaft (2).

Abstract: In a kneader mixer for the thermal or chemical treatment of products in liquid, pasty and/or powdered form within a housing (1), a kneader shaft (20) which is provided with blade elements (25) and rotates around an axis of rotation (A) is arranged. Between the blade elements (25) there are kneading-support elements (27, 43) having in each case a foot (32) fastened on the housing. The blade element(s) (35) is (are) arranged in blade planes (E) perpendicular to the kneader shaft. In this connection, the foot (32) of the kneading-support element (27, 43) also lies in the plane (E) of the blade element(s) (25).

Abstract: In a mixing kneader for carrying out mechanical, chemical and/or thermal processes, having at least two rotating shafts (5, 6) with their axes parallel, disk surfaces (21) with kneading bars (25) fitted to their periphery are to be provided at least on the one shaft designated as the main shaft (5). These kneading bars will be swept by a cleaning and/or kneading and transporting elements (7) which are fitted to the other shaft designated as a stripping shaft (6). In this arrangement, the kneading bars (25) of two neighboring disk surfaces (21) on the main shaft (5) maintain a mutual spacing (a), through which passes the cleaning and/or kneading and transporting element on the stripping shaft (6).

Abstract: A lock for the loading and/or discharging of, in particular, not easily flowing, adhering bulk materials into or out of a pressurized or vacuum chamber through a discharge opening of a discharge housing, the operating chamber being adjoined by a housing having an inlet connector. Guided in this housing is a piston which transports the bulk material from the inlet connector to the discharge housing. During this procedure, the discharge housing is closed off in relation to the housing by an openable valve.

Abstract: In the case of a continuously operating mixing kneader for the thermal or chemical treatment of products in liquid, pasty and/or pulverulent state in a housing, there is arranged in this housing, running axially, a kneader shaft (20), which is equipped with disk elements (25) and kneading bars (40) and rotates about an axis of rotation (z). Said kneader shaft effects the transporting of the product in the direction of transport (x). Between the disk elements (25) there are provided kneading counter-elements (33), fixed to the housing (1), the disk elements (25) being arranged furthermore in disk planes (42) perpendicularly to the kneader shaft and forming between them free sectors, which create kneading chambers with the disk plane (42) of adjacent disk elements (25). In this arrangement, the kneading bars (40) are intended to be arranged on a positive or negative offset line (43 or 44) in the kneading chambers between two disk planes (42).

Abstract: In a mixing kneader for the mechanical and/or thermal treatment of products, there is a shaft (16) arranged in a housing (1), on which shaft disk segments (21) are avoided distributed in the axial direction. In the kneading spaces (24) between the disk segments (21) there are fixed kneading counter-elements (27), which clean the disk segments (21) and shaft (16) and comprise a section (30), running close to the disk segments (21), and an arm (31), running close to the circumferential surface (37) of the shaft (16). In order that the section and the arm can give way to excessive product encrustations on the shaft, a center line (N) of the section (30) close to the disk segments (21) is to run at an inclination, in the direction of rotation (Z) of the shaft (16), corresponding to a secant through the shaft (16). Something similar also applies to the center line (O) of the arm (31) and to a leg (28) adjoining the section (30) at the other end from the arm (31).

Abstract: The invention relates to a multi-spindle kneading mixer with at least two axis-parallel agitator shafts engaging into one another, one of which is designed as a disk shaft, into which kneading elements of a kneading shaft engage, wherein these kneading elements scrape the product off from the disk surfaces and press it by means of corresponding diverting surfaces into a kneading gap formed on the one hand by the kneading element and on the other hand by the opposite disk surface, the product being moved axially to and from between the disk surfaces.

Abstract: A multi-spindle kneading mixer with at least two intermeshing shafts, one of which is equipped with disk elements which are cleaned by a second agitator shaft,with intensive full mixing and kneading taking place at the same time, characterized in that fixed kneading counterelements are inserted in the housing for the purpose of an approximately complete cleaning of the two agitator shafts.

Abstract: Heatable or coolable mixing kneader for batchwise or continuous operation for mixing/kneading processes with liquid, pasty and free-flowing products, with a kneading shaft (16) coaxially rotating in a cylindrical housing (1), with disk elements (17) mounted at right angles thereupon, with kneading bars (18), which interest with kneading counterelements (19/20/21) fixed in the housing, characterized in that these kneading tools are designed as interengaging forks with kneading gaps of large specific length.

Abstract: A kneader-mixer performs mechanical, thermal and/or chemical processes with products which are in the liquid, viscous-pasty and/or free flowing state and includes an elongated hollow casing having an axis of elongation and having axially separated product inlet and product outlet ports. The casing has an inner wall. A kneading shaft in the casing is aligned with the axis and is rotatable thereabout. A plurality of kneading arms secured to the shaft extend radially outward therefrom in the casing. The arms are spaced axially along the shaft. A plurality of flat disc elements are disposed in the casing and lie in spaced parallel planes disposed at right angles to the shaft. Each element defines a circular sector spaced from the shaft and is secured to the inner wall of the casing. Each element is disposed adjacent a kneading arm which cleans the adjacent surface of the element as the shaft rotates.

Abstract: Kneader-mixers for mechanical and thermal treatment of products in different state forms, comprising a heatable cylindrical casing and a kneader shaft with heatable disk elements revolving therein and on which are arranged kneading blades scraping the inner wall of the casing. During mixing, these stirring elements cooperate with the hook-like kneading counterelments cleaning the stirrer surfaces and fixed in the casing. In each counterelement an arm forms a kneading gap with the casing wall, while second and third arms clean the disks and shaft. Each radial scraper for each disk element has at least two separate scraping edges, which subdivide the product into two product flows and through the inclined position of the kneading counterelements the scraped product acquires a powerful axial and radial transport component.