A method of drying a substance, the method comprising the steps of distributing the substance on a first belt having a side adapted to receive the substance; urging the substance via the side of the first belt towards at least two adjacent sections of an exterior circumferential surface of at least one drum rotatable about a central axis; heating the substance on the first belt via a plurality of heating devices arranged proximate to and about each said section of the drum to heat the substance to remove fluids from the substance; and separately controlling the heating devices proximate to each said section of the drum to heat the substance at different heating temperatures at each section thereof while traveling on the first belt around the drum.

A method and a fiber-treatment system dry wet or damp fibers. A fiber mat (13) including wet or damp fibers is formed on a treatment band (31) which is moved in a conveying direction (x). An air flow (36, 36a) composed of heated drying air is generated in the fiber dryer (30). The heated drying air is guided in an upward direction through the treatment band and the fibers contained in the fibre mat (13, 14) are loosened and dried. Linters (16) possibly produced by any moving fibers are captured by a filter band (32) arranged above the treatment band, which is also moved in the conveying direction (x). At the outlet of the fiber dryer, the fibers are detached from a support (17) formed on the filter band, in particular when guiding the detached fibers back towards the dried fibers guided to the treatment band (31, 31c).

The present invention provides an apparatus 100 for drying a substance 190, the apparatus 100 comprising at least one roller 121 rotatable about a central axis; a first belt 112 having a first side 112 and a second side 112, the first side 112 of the first belt 112 adapted to receive the substance 190; and a plurality of heat induction elements 123 arranged to induce heat in the first belt 112 to heat the substance 190, where in operation, the first belt 112 urges via its first side 112, the substance 190 towards a portion of an exterior circumferential surface of the roller 121, and the substance 190 is heated to remove fluids from the substance 190.

A method and a fiber-treatment system dry wet or damp fibers. A fiber mat (13) including wet or damp fibers is formed on a treatment band (31) which is moved in a conveying direction (x). An air flow (36, 36a) composed of heated drying air is generated in the fiber dryer (30). The heated drying air is guided in an upward direction through the treatment band and the fibers contained in the fibre mat (13, 14) are loosened and dried. Linters (16) possibly produced by any moving fibers are captured by a filter band (32) arranged above the treatment band, which is also moved in the conveying direction (x). At the outlet of the fiber dryer, the fibers are detached from a support (17) formed on the filter band, in particular when guiding the detached fibers back towards the dried fibers guided to the treatment band (31, 31c).

A method for baking a continuous mat of mineral or plant fibers successively includes application of an aqueous solution, containing a binder diluted in the solution, onto mineral or plant fibers, shaping of the fibers to form a continuous mat on a conveyor in motion, and heating the mat in movement through an oven by a hot air flow at a temperature higher than the curing temperature of the binder. Furthermore, at least partial drying of the mat is carried out before entry into the oven. The at least partial drying includes irradiation of the mat in movement with radiofrequency electromagnetic waves whose frequency lies between 3 MHz and 300 GHz.

A multi-pass drying process for a wet substance is disclosed. Said multi-pass drying process comprises the steps of passing the wet substance through at least two different drying stages to produce a semi-dried product between the drying stages, with stirring and ventilating the semi-dried product between each drying stage, wherein the wet substance or the semi-dried product is subjected to compression while being heated in at least one of the drying stages. The multi-pass process ensures a high degree of control over the final dried product and allows certain flexibility to ensure higher throughput. Such a multi-pass drying process is suitable when seeking to obtain food products such as dried food premix or food ingredients, where the final dried product needs to be of high dryness to attain longer shelf life, high nutritional content, strong aroma and to be superior in other organoleptic properties.

A dryer (2) for drying paper tubes (4) conveyed in a multilayer stream (W) transversely to the axis of the paper tubes (4), comprising an inlet (6) adapted to passing through it of a conveyor (3) of the multilayer stream (W), an outlet (7) adapted to passing through it of the conveyor (3) of the multilayer stream (W), at least one drying chamber (5) situated between the inlet (6) and the outlet (7), adapted to receive the conveyor (3) of the multilayer stream (W), at least one heater (8) to heat the air, at least one fan (9) to blow the heated air into the drying chamber (5). At least one wall (13, 14) of the dryer (2) is provided with at least one blowing element (15) for the heated air, and the blowing direction (R) of the heated air through the blowing element (15) is situated substantially transversely to the longitudinal axis (k) of the drying chamber (5) of the dryer (2).

The present invention provides an apparatus 100 for drying a substance 190, the apparatus 100 comprising at least one roller 121 rotatable about a central axis; a first belt 112 having a first side 112 and a second side 112, the first side 112 of the first belt 112 adapted to receive the substance 190; and a plurality of heat induction elements 123 arranged to induce heat in the first belt 112 to heat the substance 190, where in operation, the first belt 112 urges via its first side 112, the substance 190 towards a portion of an exterior circumferential surface of the roller 121, and the substance 190 is heated to remove fluids from the substance 190.

The present invention relates to a coal supply device for reducing dust of coal input for dry and supplying dispersing and supplying the coal in a system for drying coal using reheat steam, and more particularly, to a device to minimize dust when the coal is supplied to a multi-stage dryer from a coal constant feeder through a pulverizer in a multi-stage dryer for drying coal using reheat steam and disperse and supply the coal to a transfer device and a coal drying system in which coal which is primarily dried in the first coal dryer is inputted into the second coal dryer and thus is secondarily dried, includes a coal constant feeder supplying a predetermined amount of coal onto the upward surface of the first transfer plate; and a dust reducer constituted by an inlet pipe coupled to an outlet of the coal constant feeder by a bearing, a worm wheel coupled onto the outer periphery of the inlet pipe, a worm gear-coupled with the worm wheel and rotating with rotary force transferred from a motor, a curved pipe of which the top is coupled to the inlet pipe, and an outlet pipe coupled to the end of the curved pipe, wherein the dust reducer which rotates at the predetermined velocity reduces the velocity of the coal supplied by the coal constant feeder to minimize generation of dust from the coal input onto the upward surface of the first transfer plate.

The present invention relates to an apparatus that reduces loads of piles of coals that are input from a fixed quantity coal supplier via a pulverizer to a multi-stage dryer and are transferred, and uniformly disperses and flattens the piles of the coals, thereby improving drying efficiency, in the multi-stage dryer that dries coals using reheat steam, wherein coals that are primarily dried by the first coal dryer are input into the second coal dryer to be secondarily dried, the apparatus including: a column-shaped body that is installed on surfaces of the plurality of first transfer plates and second transfer plates, which faces an upper side, at a specific interval; a division boss that protrudes from a central portion of a front surface of the body to divide and disperse a central portion of piles of coals input from a fixed quantity coal supplier onto the surfaces of the first transfer plates and the second transfer plates, which face an upper side, into left and right parts; and a pair of fixing members that are fixed at upper ends of the first guide rails and the second guide rails that horizontally support the first transfer plates and at upper ends of the third guide rails and the fourth guide rails that horizontally support the second transfer plates to fixedly support opposite ends of the body, wherein the piles of the coals that are transferred on the surfaces of the first transfer plates and the second transfer plates, which face an upper side, are flattened at a specific height so that reheat steam sprayed while passing through the first transfer plates and the second transfer plates uniformly comes into contact with surfaces of coal particles.