The invention relates to a belt drier arrangement for drying an aqueous polymer gel and for comminuting the dried polymer gel to give dried polymer particles, comprising: a drier setup for drying an aqueous polymer gel, a comminuting arrangement downstream of the drier setup relative to the product flow direction, for comminuting the dried polymer gel to give dried polymer particles. In accordance with the invention the comminuting arrangement comprises at least a first comminutor and a second comminutor, each having a rotatable shaft with functional tools, the second comminutor being disposed downstream of the first comminutor relative to the product flow direction.

The invention relates to a belt drier arrangement for drying an aqueous polymer gel and for comminuting the dried polymer gel to give dried polymer particles, comprising: a drier setup for drying an aqueous polymer gel, a comminuting arrangement downstream of the drier setup relative to the product flow direction, for comminuting the dried polymer gel to give dried polymer particles. In accordance with the invention the comminuting arrangement comprises at least a first comminutor and a second comminutor, each having a rotatable shaft with functional tools, the second comminutor being disposed downstream of the first comminutor relative to the product flow direction.

An installation for carrying out a continuous multi-stage industrial process includes a housing that defines a first space and a second space that is connected to the first through a first connecting channel. Different pressure conditions prevail in these spaces during the course of the process. A process material is passed sequentially through the first space, the first connecting channel and the second space. A transported material is provided in the first connecting channel to form a free-flowing sealing zone with the process material and ensures that different process conditions will be maintained in the two spaces, and in particular that different pressures will be maintained in the two spaces. The invention also relates to a multi-stage continuous industrial process using such an installation.

A multi-chamber dryer using adjustable conditioned air flow is disclosed. According to one embodiment, an apparatus includes a drying belt configured to receive a product to be dried on a first surface of the drying belt and a heat medium in contact with a second surface of the drying belt. The heat medium is configured to heat the product and is maintained at a pre-determined temperature. The apparatus further includes a manifold that is positioned above the drying belt, where the manifold includes one or more orifices that inject conditioned air laterally across a width of the drying belt to remove evaporated water from the product

A multi-chamber dryer using adjustable conditioned air flow is disclosed. According to one embodiment, an apparatus includes a drying belt configured to receive a product to be dried on a first surface of the drying belt and a heat medium in contact with a second surface of the drying belt. The heat medium is configured to heat the product and is maintained at a pre-determined temperature. The apparatus further includes a manifold that is positioned above the drying belt, where the manifold includes one or more orifices that inject conditioned air laterally across a width of the drying belt to remove evaporated water from the product

In an apparatus (1) for dewatering wood material (2), a first roll (3) and a second roll (4) form a nip (N1) in which water can be pressed out of the wood chips (2). An endless permeable conveyor (5) is arranged to pass through the nip (N1) and carry wood chips (2) through the nip (N1). A method of dewatering wood material uses the inventive apparatus.

In an apparatus (1) for dewatering wood material (2), a first roll (3) and a second roll (4) form a nip (N1) in which water can be pressed out of the wood chips (2). An endless permeable conveyor (5) is arranged to pass through the nip (N1) and carry wood chips (2) through the nip (N1). A method of dewatering wood material uses the inventive apparatus.

A process for producing superabsorbent particles by polymerizing a monomer solution or suspension, comprising drying of the resultant aqueous polymer gel in an air circulation belt dryer, grinding, classifying, and optionally thermal surface postcrosslinking, wherein the aqueous polymer gel is introduced into the air circulation belt dryer by means of an oscillating conveyor belt and that guide devices are located at the edges of the conveyor belt.

A process for producing superabsorbent particles by polymerizing a monomer solution or suspension, comprising drying of the resultant aqueous polymer gel in an air circulation belt dryer, grinding, classifying, and optionally thermal surface postcrosslinking, wherein the aqueous polymer gel is introduced into the air circulation belt dryer by means of an oscillating conveyor belt and that guide devices are located at the edges of the conveyor belt.

A low profile design air tunnel system and method for providing uniform air flow in a refractance window dryer are disclosed. According to one embodiment, a system comprises a conditioned air supply manifold that provides air into a drying chamber. The system has a drying belt directed through the drying chamber. A feed application tray at a first end of the drying belt applies a liquid to the drying belt. The system has an exhaust manifold located at the first end of the drying belt.