A vibratory fluidized bed dryer includes a deck with a surface on which a bed of materials is formed, the deck having apertures through which air passes to fluidize the bed of materials on the deck, a source of air coupled to the apertures in the deck to supply air to the bed through the apertures in the deck, and a vibration generator coupled to the deck. The deck has at least two zones, each zone having a different open area percentage, such that the air passing through each zone produces a different superficial velocity.

The present invention discloses a coupled system and a method for separation and drying of moist fine particle coal. The coupled system comprises a blast blower, a surge tank, a moisture detection sensor, a control device and two pipelines, wherein the blast blower is communicated with the surge tank; one end of two pipelines which are connected in parallel is communicated with the surge tank, while the other end is communicated with a fluidized bed; one of the two pipelines consists of a No. 1 valve, a No. 1 flowmeter, an air heater and an electric butterfly valve which are connected in series sequentially, while the other pipeline consists of a No. 2 valve and a No. 2 flowmeter which are connected in series; the moisture detection sensor is arranged in the fluidized bed; and the control device is respectively connected with the blast blower, the No. 1 valve, the No. 1 flowmeter, the air heater, the No. 2 valve, the No. 2 flowmeter and the moisture detection sensor. The coupled system can sequentially achieve drying and separation of brown coal particles in the fluidized bed, making the upgrading separation of brown coal particles by dehydration and de-ashing done within one process flow, thereby improving the working efficiency and simplifying the process flow.

The present invention discloses a coupled system and a method for separation and drying of moist fine particle coal. The coupled system comprises a blast blower, a surge tank, a moisture detection sensor, a control device and two pipelines, wherein the blast blower is communicated with the surge tank; one end of two pipelines which are connected in parallel is communicated with the surge tank, while the other end is communicated with a fluidized bed; one of the two pipelines consists of a No. 1 valve, a No. 1 flowmeter, an air heater and an electric butterfly valve which are connected in series sequentially, while the other pipeline consists of a No. 2 valve and a No. 2 flowmeter which are connected in series; the moisture detection sensor is arranged in the fluidized bed; and the control device is respectively connected with the blast blower, the No. 1 valve, the No. 1 flowmeter, the air heater, the No. 2 valve, the No. 2 flowmeter and the moisture detection sensor. The coupled system can sequentially achieve drying and separation of brown coal particles in the fluidized bed, making the upgrading separation of brown coal particles by dehydration and de-ashing done within one process flow, thereby improving the working efficiency and simplifying the process flow.

Drying of recycled abrasive that can be recycled separated or as a part of the full recycling system. Sorted and meshed wet recycled abrasive is kept in a hopper for wet recycled abrasive, it is continuously delivered using a screw feeder into a drying chamber on a vibration mesh. Air is blown in the chamber, using an air flow generator, under a vibration mesh. The recycled abrasive is moved and lifted on the mesh using air flow and mesh vibration, this provides for clots of recycled abrasive to break down to particles of recycled abrasive and abrasive mixes and dries.

A method, a system and devices are for processing of at least one substance into a dried, fragmented and fluidized end product. The at least one substance is delivered in fragmented state from a fragmenting device to a fluidizing, drying and filtering unit. The at least one fragmented substance is subjected to fluidizing action from at least one set of rotary shovels while blowing a drying agent (DA), e.g. hot gas, hot air, vapor or superheated steam into a space of the unit. The drying agent, having passed through fluidized, fragmented substance(s), is sucked and filtered to let it exit a space at an upper end or lateral region thereof. Further, the fragmented, fluidized and dried substance(s) are caused to leave the space at a lower region thereof as the product. Humid drying agent exiting the space is at least partly de-hydrated and/or heated before re-entering the space.

Methods and devices for agitating material. In some embodiments, an agitator is positioned in a receptacle to agitate material therein. The agitator may include a shaft, an arm extending from the shaft, and at least one knife extending from the arm. In some embodiments, the agitator may further include one or more agitator elements operably connected to at least one knife.

Polymer pellets are formed using laminar gas flow within a downstream gas conduit, as may be implemented consistent with one or more embodiments herein. A gas channel directs gas to an outlet of a polymer extrusion mandrel via which a polymer melt is extruded. A downstream gas conduit extends away from the outlet of the polymer extrusion mandrel, and provides laminar gas flow along the polymer melt extending from the extrusion mandrel, and within the downstream gas conduit. Using this approach, laminar flow can be maintained along an initial portion of the polymer melt, and used to control the subsequent formation of pellets therefrom.

Polymer pellets are formed using laminar gas flow within a downstream gas conduit, as may be implemented consistent with one or more embodiments herein. A gas channel directs gas to an outlet of a polymer extrusion mandrel via which a polymer melt is extruded. A downstream gas conduit extends away from the outlet of the polymer extrusion mandrel, and provides laminar gas flow along the polymer melt extending from the extrusion mandrel, and within the downstream gas conduit. Using this approach, laminar flow can be maintained along an initial portion of the polymer melt, and used to control the subsequent formation of pellets therefrom.

Provided is a device for granulating, agglomerating, pelletising, drying and/or coating, the device including a swirl chamber, a distribution chamber, wherein the swirl chamber is separated from the distribution chamber by a base and wherein a powder to be granulated or a powder mixture to be granulated is presented in the swirl chamber, the device further including at least one agitator for thoroughly mixing the powder to be granulated or the powder mixture to be granulated and at least one addition device for a liquid, wherein the base is designed in several parts and at least one base part is horizontally and/or vertically displaceable, with the result that that the base becomes a distributor plate. Also provided is a method for granulating, agglomerating, pelletising, drying and/or coating using such a device and a base suitable for use as a distributor plate in a convective drying apparatus.

A vibratory dryer includes a conveying surface over which a bed of materials to be dried is conveyed, the surface having an inlet end and an outlet end, and passages through which air passes through the conveying surface to pass through the bed of materials on the conveying surface, a source of heated air coupled to the passages to supply heated air to the bed through the passages, and a vibration generator coupled to the conveying surface. The dryer also includes at least one rotary mixer having an impeller spaced from the conveying surface at a distance so as to be disposed within the bed, the at least one rotary mixer disposed along the length of the conveying surface between the inlet end and the outlet end. The at least one rotary mixer is adapted to provide uplift within the bed without de-densification of the bed.