Abstract: A through-air apparatus for drying, curing, or bonding paper or non-woven products is provided. The apparatus includes a through-air roll configured for rotational movement about a first axis, where the through-air roll is configured to carry a web. The apparatus also includes a hood at least partially enclosing the through-air roll, and a cooling system positioned adjacent the through-air roll. The cooling system is configured to provide cool air to a web as the web leaves the through-air roll, and all of the cooling system is external to the through-air roll.

Abstract: A drying device includes a support portion that supports a printed medium, a heating unit provided in a drying chamber for drying the medium supported by the support portion, a flow path member that forms an air flow path connecting an inflow port that opens downward in the vertical direction and the drying chamber, an air blowing unit that supplies, to the drying chamber, air flowing from the inflow port into the air flow path and causes the air to flow out of an outflow portion of the drying chamber, and a control unit that controls driving of the air blowing unit. The outflow portion is positioned lower than the inflow port in the vertical direction, and the control unit controls the driving of the air blowing unit to change an air flow rate of the air supplied to the drying chamber.

Abstract: A recording apparatus includes a support surface configured to support the medium and positioned downstream than the recording unit in a transporting direction in which a medium to which a liquid impinged by the recording unit is transported, a heating unit configured to heat the medium supported by the support surface, a flow channel including an inlet and an outlet opening toward the support surface, and a blower disposed in the flow channel and configured to allow a gas entering via the inlet to be blown out from the outlet. The inlet opens to allow at least some of the gas blown from the outlet to enter. The outlet is nearer to the recording unit than the inlet is, and its blowing direction goes toward at least an inlet side in a direction along the support surface.

Abstract: A system for cooling rolling mill material is provided that includes a conveyor system that receives rolling mill material and passes the rolling mill material through one or more cooling regions. A cooling structure that operates uniformly across the central and edge regions of the conveyor system. The cooling structure uses a first jet of air for cooling the central portion of the rolling mill material. A nozzle deck is positioned on the edge regions of the conveyor system produces a second of jet of air for cooling the edge portions of the rolling mill. The nozzle deck includes one or more adjustable nozzle structures for controlling the air flow produced by the second jet of air by varying the size of their air passage regions.

Abstract: A reactor apparatus and method for removing and/or reducing NOx, CO, carbon particulates and hydrocarbons from exhaust gases produced by industrial processes includes a reactor including an inlet plenum, a reaction chamber, an outlet plenum, and a heat exchanger wherein gases exiting the reaction chamber heat gases entering the reaction chamber. EGR is drawn through a cooling heat exchanger with an injection blower and is delivered through control valves to the reaction chamber, the inlet plenum and to an add fuel mixing chamber whereby mixed fuel and EGR is delivered to the reaction chamber. A feedback controller controls the flow valves responsive to the temperatures in the reaction chamber entrance and the outlet plenum.

Abstract: A furnace to flame-resistantly treat a precursor fiber strand by sending hot air to a heat treatment chamber through a hot air blowing nozzle in a direction parallel to a running direction of the strand is provided. The hot air passes through a porous plate and a rectifying member satisfying the following conditions: (1) AB?4.0; (2) 0.15???0.35; (3) 0?B?d?20; and (4) 80% or more of the area of one opening of the porous plate when facing surfaces of the porous plate and the rectifying member overlap is included in one opening of the rectifying member, where A is the rectifying member hot air passage distance (mm), B is a horizontal maximum distance (mm) of one opening of the rectifying member, ? is a rate of hole area of the porous plate, and d is the porous plate equivalent diameter (mm).

Abstract: A method for processing a web material having a machine direction and a cross-machine direction coplanar and perpendicular thereto is disclosed herein. The method incorporates the step of first directing a web material proximate to an air foil. Steam is then applied to the web material by the air foil. Finally, the web material is processed by any downstream web material processing operation.

Abstract: A sheet dryer includes sprockets and a delivery chain, at least one heat-resistant glass plate, at least one lower-surface drying lamp, a guide plate, a plurality of first discharge holes, and a plurality of second discharge holes. The sprockets and delivery chain convey a paper sheet along a convey path. The heat-resistant glass plate is arranged under the sheet convey path. The lower-surface drying lamp is arranged under the heat-resistant glass plate and dries the lower surface of the printed/coated paper sheet. The guide plate is arranged adjacent to the heat-resistant glass plate in a sheet convey direction. The first discharge holes are formed in the heat-resistant glass plate. Air is discharged upward through the first discharge holes. The second discharge holes are formed in the guide plate. Air is discharged through the second discharge holes in the widthwise direction of the paper sheet.

Abstract: A drying system and method are provided. The drying system includes a plenum and a gas source in fluid communication with the plenum. A gas flow guide is attached to the plenum and is operable to direct gas flow provided by the gas source. A support includes a surface, at least a portion of which is heated. The gas flow guide is positioned to direct gas flow at least partially toward the heated surface of the support.

Abstract: A heating method and apparatus for a band-shaped body transported in a constant conveying direction in a heating zone so as to heat the band-shaped body is provided. The method includes detecting whether a portion of the band-shaped body at which width and/or thickness changes is passing through the heating zone setting a first supplied heat quantity, and supplying heat with the first supplied quantity to the band-shaped body in the heating zone; and setting a second supplied heat quantity, and supplying heat with the second supplied quantity to the band-shaped body in the heating zone. The method also includes increasing or decreasing at least one of air flow rate or temperature of the heated air stream. The apparatus includes an air flow ratio changing unit which maintains a constant sum of introduced air stream flow rate and bypass air stream flow rate.

Abstract: The present invention dries an ink absorption layer using a drying apparatus after applying an ink absorption layer application liquid containing inorganic particles and water-soluble resin to a continuously running web and thereby reduces a drying speed distribution in the width direction of the ink absorption layer to 20% or less.

Abstract: An apparatus for drying a travelling wet fibrous web is provided which comprises a rotating air-permeable drum. The drum is at least partially surrounded by a hood which has an interior space for receiving a flow of air and directing the flow of air through a permeable inner wall towards the outer surface of the drum. At least a portion of the hood is divided into individual sections in a cross-machine direction. Apparatus is provided for supplying a flow of drying air at a first temperature to the hood, and for supplying profiling air at a selected different temperature different from the first temperature to at least one of the individual sections.

Abstract: The invention provides a dryer for a printer such as a print on demand wallpaper printer. The dryer has a compartment with an opening across the top. The opening is in a path of a moving media web which is printed on by the printer. The opening is optionally covered by a door. A source of heated air is located above the opening and blows heated air downwardly onto the door, or the opening if the door is open. In general, the door covers the opening and acts to support the web when the door is closed. When the door is open, the moving web can enter the compartment.

Abstract: An air-knife is described in the form of a segmented air distribution bar equipped with control valves along the length of the bar to enable a user to incrementally adjust the air distribution across the width of an inking roller of a printing press.

Abstract: A method and apparatus for drying a coated web is taught that reduces dryer induced mottle. The apparatus comprises a plurality of ducts positioned in series within an enclosure, the coated web travelling through the enclosure in a direction of travel, each duct including an arcuate portion terminating in a discharge nozzle, each discharge nozzle directed such that air exiting therefrom is flowing generally parallel to the coated web and in the direction of travel of the web; and at least one of the plurality of ducts having a baffle plate extending back therefrom toward another one of the plurality of ducts upstream thereof, the baffle plate being generally parallel to the coated web. Each duct preferably also includes a plate extension projecting from a bottom portion of the discharge nozzle in the direction of travel of the web, the plate extension being substantially parallel to the coated web.

Abstract: A nozzle for a fabric dryer whose cross sectional area tapers from the proximal end thereof to the distal end thereof. The nozzle has a fabric side that is juxtaposed relative to the fabric. The fabric side of the nozzle is provided with a slot that extends therealong. The slot has flanges that penetrate away from the fabric side of the nozzle and open inwardly into the nozzle. A plurality of baffles are positioned between the flanges, along the slot. Each of the plurality of baffles is directed toward the fabric side of the nozzle and is inclined toward the proximal end of the nozzle to deflect hot air from the slot, so that the hot air projects normally onto the fabric so as to avoid moving the fabric off the fabric conveyor of the fabric dryer.

Abstract: In known rack dryers, the drying effect is weaker in the outer area on the side of the air intake into the pipe chambers than in the other areas. Said weaker drying effect is caused by turbulence in this area, which leads to a drop in the static pressure. The aim of the invention is to provide a dryer which ensures even drying of the goods across the entire width, even in the problem areas. The rack dryer is equipped with conductive bodies (20, 26) which are located on the partition wall (5) and which streamline the current in the area of the air intake into the pipe chambers in such a way, that a predominantly even static pressure prevails throughout the entire pipe chamber. The invention can be used for drying sandwich-type plaster board or wood veneer.

Abstract: Apparatus and methods for applying drying air to a printed substrate during each pass of a print head over the substrate. Preferred embodiments of the present invention direct heated air onto the printed substrate and then draw that heated air away from the proximity of the substrate with a vacuum.

Abstract: A drying compartment for drying a printed web, consisting of a housing with intake and outlet openings for the web and with at least one infrared radiator directed at the web and/or with blower nozzles which blow hot air onto the web. In order to remove layers of air entrained by the web, turbulence generators are positioned above the web, or above and below the web.

Abstract: A thermal equalizer for use in a paper web drying machine and process is disclosed. The equalizer is located at the junction of a crescent header and the associated nozzle box and its use results in a more uniform temperature and nozzle velocity in the cross-machine direction.

Abstract: A method for preheating a permeable, thermoformable material having first and second sides includes supplying heated fluid to a fluid distribution system; regulating flow of the fluid such that fluid having a first temperature flows at a first velocity, and fluid having a second temperature less than the first temperature flows at a second velocity greater than the first velocity; introducing the fluid onto the first side of the material; and developing a suction on the second side of the material sufficient to draw the fluid through the material thereby convectively heating the material; wherein the flow of the fluid is regulated so as to transfer substantially uniform energy flux to the material.

Abstract: A device for enhancing removal of liquid from fabric utilizing mechanical and aerodynamic techniques. A base plate contains one or more apertures to which a vacuum is applied for extracting water from the fabric. The total cross-sectional area of the apertures is selected to be that which will increase, and preferably maximize, the extraction power for the vacuum motor with which said base plate is to be utilized. The number and shape of the apertures is selected to reduce the ratio of the total distance along all the perimeters of said apertures to the total cross-sectional area of said apertures in order to reduce boundary layer drag. The cross-sectional area of each of said apertures is selected to be large enough to permit solid contaminants that can be expected to be in the liquid to pass through said apertures without clogging said apertures. Barriers are attached to the bottom of the base plate to force any liquid in the fabric toward the apertures as the base plate is moved across the fabric.

Abstract: Method and apparatus for drying a coated paper web (W) or the like web. The apparatus (10) comprises sequentially in the running direction of the web—a turning device (16) arranged on the first side of the web and provided with blow nozzles (20), with which the running direction of the web to be dried is turned in a non-contacting way, and web drying devices (30, 30′) arranged on the first and the second sides of the web, in which the web is dried in a non-contacting manner. The apparatus further comprises a counterpart (18) provided with overpressure nozzles (24), arranged on the second side of the web at the point of the turning device (16), for stabilizing the web run by means of blows generating a local overpressure between the web (W) and the carrier surfaces of the overpressure nozzles (24).

Abstract: In a method and a device for thermal treatment of a continuous product web by blowing of steam, a product web is transported through an inlet slot, an interior of the housing and an outlet slot and steam is blown onto the product web through nozzle openings of nozzle boxes, steam is blown onto the product web before the inlet slot of the housing in a sluice.

Abstract: A device for enhancing removal of liquid from fabric, such as a vacuum head device for removing liquid from carpet, includes an elongated base plate to be moved across the carpet. The vacuum head has a tapering cross section with a wider upper end and a narrower lower end configured to penetrate into the carpeted surface. In addition, a plurality of apertures are formed in an array in the base plate to withdraw the fluid under a vacuum force. Preferably, the plurality of apertures are sized larger than a width of the lower surface to create a plurality of protrusions extending from the base plate configured to penetrate the carpeted surface.

Abstract: Apparatus for treating material webs. For the purpose of treating material webs (10), especially drying them, these are acted on by a (heated) gaseous medium via slot nozzles (13, 14) in the area of a drying chamber (11). Depending on the operating conditions and the material web, the flow conditions of the gaseous medium must be capable of being adapted in the area of the material web, since the material web (10) may otherwise be adversely affected, for example as a result of an excessive supply of heat. The slot nozzles (13, 14) are designed in such a way that, in order to change the flow conditions, the exit of the gaseous medium from different nozzle slots can be adjusted by means of a control device, especially a slide device. By means of different outflow directions of the nozzles, an influence can be exerted on the flow conditions and the supply of heat, depending on the operating condition of the drying chamber (11).

Abstract: Apparatus for levitated guidance of a material web moving in a travel direction, includes a blow box which defines an air chamber in communication with a source for supply of blowing air. The blow box has a planar surface portion positioned in facing relationship to the material web and formed vith at least one row of nozzles. Side walls converge from the curved edge zones of the surface portion and diverge toward the material web, to thereby demarcate a pressure conversion compartment of trapezoidal cross section. Arranged adjacent the side walls are diffusion channels which are directly connected with the air chamber of the blow box.

Abstract: An apparatus for levitational guidance of a continuous web of material for the purpose of its heat-treatment is configured of individual zones. The form ducting of the zones has the shape of an U in the vertical longitudinal center section above and below the web in each case, the legs of the U being located parallel to the transport direction of the web. The legs adjacent to the web are equipped on the side facing the web with levitation nozzle ribs or nozzle areas. In the legs facing away from the web, a radial fan is incorporated in each U, the delivery direction of which is directed towards the turn joining the two U legs. Heating means are arranged to advantage in the heating zones in the region between the two legs of the U. Coolers may be incorporated to advantage in the region of the turn joining the two U legs.

Abstract: A system and method for providing conditioned air to a yarn traveling on a textile machine includes an air conditioning unit local to said textile machine and configured to receive input air and to condition the air to a first desired relative humidity. An air delivery conduit is in communication with the air conditioning unit and conveys the conditioned air therefrom. A diffuser is in communication with the delivery conduit so that the conditioned air flows into the diffuser. The diffuser defines a nonuniform opening so that the conditioned air leaves the diffuser in a turbulent flow. The opening is disposed at a predetermined distance from the yarn so that an air mixture, comprising the turbulent conditioned air and ambient air drawn into the turbulent flow, has a second desired relative humidity upon reaching the yarn.

Abstract: A vacuum-assisted hot plate is used to precondition webs, such as paper webs used in the manufacture of corrugated paperboard. The vacuum-assisted preheater has a web supporting and heating surface separated into four sections, namely: an input section, a central upstream section, a central downstream section, and an output section. The sections are separated by three vacuum channels that are sized wide enough to prevent clogging from paper dust. The central upstream section and the central downstream section have convex surfaces. Vacuums applied to the vacuum channels provide a normal force to pull the traveling web against the heated surface, whereas the convex configuration of both the central upstream section and the central downstream section provide a normal force pushing on the paper web in the opposite direction. The result is effective positive contact of the traveling web against the heated surface, thereby promoting effective heat transfer.

Abstract: A conveyor dryer having a drying chamber and a conveyor disposed within the chamber for conveying a selected material through the chamber is detected. A stationary conveyor support is disposed on each side of the conveyor for supporting the conveyor. A material guide is disposed adjacent each side of the conveyor for generally retaining material on the conveyor and wherein the conveyor support and material guide are disposed adjacent to each other such that they cooperate to form a generally air tight seal that minimizes the flow of air between the conveyor support and the material guide.

Abstract: Described is a drying and/or fixing device for blowing at a textile material web, which is transported in its longitudinal direction in the broad-stretched condition through at least one treatment field and blown at there from blowboxes with a treatment gas. In order to assure that the treatment gas flowing off from the material web--viewed over the width of the material web--is discharged everywhere with the same suction pull, provision is made with the help of flow guide means associated with the back sides of the blowboxes that the treatment gas flowing back upon treatment of the material web can only flow off tangentially on the longitudinal edges of the treatment field corresponding with the edges of the material web.

Abstract: A drying apparatus and method utilizes radiant heat and forced air to provide for rapid drying of photosensitive material without emulsion side contact. The forced air is supplied through air passages formed between cover members that partially surround radiant heating bars, and is directed onto the photosensitive material where it impinges upon the photosensitive material. As the air passes through the air passages, it is heated by radiant heat from the heating bars. The heated air increases the drying effect of the drying apparatus and at the same time, impinges on the photosensitive material in a manner which assists in holding the photosensitive material firmly against, for example, drive rollers.

Abstract: A combination infrared/air convection dryer or oven for travelling webs. A shutter assembly is provided between the infrared radiation source and the moving web in order to selectively expose the web to infrared radiation, and to create a sealed air chamber when in the closed position. Enhanced drying of the web and/or a coating on the web at high speed is achieved without a concomitant increase in dryer length. When the drying atmosphere has a high concentration of solvent, exposure of that atmosphere to the heating elements, which can cause explosions, is eliminated by actuation of the shutters. In a preferred embodiment of the invention, air bars are used to floatingly support the moving web to avoid contact of the web with dryer elements.

Abstract: To provide uniform treatment criteria over the entire surface of a material web (10) in the region of a drying chamber (11), the treatment air or intake air is directed onto the material web (10) from above and below by means of slot nozzles (19, 24) from nozzle boxes (17, 18). The return air reflected from the material web (10) is conducted away upwards and downwards via return-flow ducts (25, 26) in the nozzle boxes (17, 18) into a collection space (34), on the one hand, and a return-air space (35), on the other hand.). The return air is conveyed upwards from the lower return-air space (35) through return-flow shafts (36, 37) into the region of the upper collection space (34).

Abstract: A carpet drying system is provided including at least one housing and a plurality of air ports mounted on a bottom of the housing for being inserted within a carpet. Also included is an air compressor connected to the housing and in fluidic communication with the air ports for directing air therethrough, thereby aerating the carpet.

Abstract: An active web stabilizer including a structure having a leading edge and a working surface coupled by a curved surface, the working surface being positioned proximate to a passing web. An internal pressurized air duct extends along the working surface orthogonally to the passing web. An air nozzle is provided at the leading edge and is in fluid communication with the air duct, the nozzle directing air flow around the curved surface and along the working surface. The air duct includes first and second chambers separated by a perforated baffle. An extension surface extends from the working surface and includes a trailing end which is angled away from the passing web. A comb is associated with the nozzle to promote web spreading.

Abstract: Tenter driers are frequently used for drying textile webs whose edges have an increased weight per unit area or have been treated with glue. It is extremely difficult to dry the edges to the same degree of residual humidity as the remainder of the web. In the inlet region, the blower box has been replaced by blower pipes extending parallel to the chain rails. The pipes are connected to the recirculated air system of the drier and provided with nozzle apertures directed towards the web edges. Since only a low drying capacity is available, the drier either has to be extended or the throughput speed has to be decreased. With the drier according to the invention, a longitudinal section which starts at the inlet and extends over at least 20% of the total length is equipped with blower pipes (27, 28) aligned parallel to the chain rails (13, 14). Blower boxes (18, 19) are also mounted in this longitudinal section, both above and below the textile web (15).

Abstract: A combination infrared/convection dryer or oven for drying travelling webs. A shutter assembly is provided between the infrared radiation source and the moving web in order to selectively expose the web to infrared radiation. Drying efficiency is optimized by adding heated impinged air at high velocity on the machine direction ends and between the infrared elements. The air being discharged on the web is heated as it is pulled across the elements to a centralized return air duct. The return air is pulled into the inlet of a close coupled supply fan which then discharges the air to the nozzles. A portion of the air is also exhausted to atmosphere to maintain the oven enclosure in a negative pressure state, thus drawing fresh make-up air into the oven housing through the web inlet and outlet slots. Flotation nozzles can be used where contactless support of the running web is desired. Enhanced drying of the web and/or a coating on the web at high speed is achieved without a concomitant increase in dryer length.

Abstract: A machine for the wet and dry treatment of fabric in rope or open-width form of any type and weight has a treatment tank (10) within which the fabric to be treated is conveyed by a belt conveyor (11). The belt conveyor has an upper active conveying branch (15) and a lower return branch (16). The upper branch (15) of the conveyor is surrounded by an air transporter channel (22) with open ends and into which, in the vicinity of its entry end, a compressed air stream is fed to compress the fabric against the conveyor belt without the intervention of mechanical compression means the machine prevents the formation of creases in the fabric and allows treatment at a high effective rate.

Abstract: In the case of a heat setting chamber for the continuous heat setting of yarns, entry and exit openings are provided, through which transport belts are fed and onto which transport belts the yarns are placed in loops. In the area of the entry and exit openings, ventilation seals are provided, on which the heat setting medium flows against the loops from underneath. The mouths of extractor vents are arranged vertically over the ventilation seals. The heat setting medium can thus penetrate the yarn loops in the area of the entry and exit openings simultaneously from above and below.

Abstract: A steam moistening apparatus includes a housing with a steam connection, wherein a steam blow chamber is arranged in the housing. The steam blow chamber has an external wall in common with the housing and the external wall is provided with steam outlet openings. A distribution duct to which steam can be admitted and which is continuously surrounded by steam on all sides is arranged in the interior of the housing of the steam moistening apparatus. The distribution duct is in communication with the steam blow chamber through several supply lines which are distributed over the length of the housing.

Abstract: Excess liquid is removed from a fast-moving thread, in that the latter is deflected, so that the liquid is hurled off, the hurled off liquid is removed from the thread, in that the thread is passed through a closed chamber, where a vacuum is produced in order to facilitate liquid evaporation and in that the thread is led through a narrow gap, so that the layer directly surrounding the thread and travelling therewith is peeled off. The combination of these drying effects constitutes one process stage. Advantageously, this process stage is performed several times in direct succession, so that in the case of a thread-protecting, small deflection angle a good thread drying can be achieved. The process is performed by an apparatus comprising several chambers (K.1-3) connected in series in the thread movement direction, the thread being deflected at the inlet and/or outlet with respect to each chamber by a deflection element (U.1-4) and passes through a narrow gap (S.1-). The chamber walls (20.

Abstract: An apparatus for the dry treatment of a fabric in which an open width fabric is caused to move alternately between an inlet pile and an outlet pile through a duct in which there are currents of air of an appropriate temperature causing the said alternate movements. The fabric is supplied gradually to the inlet pile and is gradually withdrawn from the outlet pile. The apparatus comprises chambers for the said piles and blower and heating means for the air currents.