F26B

DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM racks for drying fruit and vegetables A01F25/12; drying foodstuffs A23; drying hair A45D20/00; body-drying implements A47K10/00; drying household articles A47L,

e.g. drying footwear A47L23/20;

drying gases and vapours B01D; chemical and physical processes for dewatering or like separating liquids from solids B01D43/00; centrifugal apparatus B04; drying ceramics C04B33/30; drying yarns and fabrics in association with some other form of treatment D06C; drying frames for laundry without heating or positive air circulation, domestic and like spin-dryers, wringing and hot pressing laundry D06F; furnaces, kilns, ovens F27;

treatment including a drying step of semiconductor substrates, e.g. wafers, H01L21/67028

The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups:

F26B11/06

covered by

F26B11/0486

F26B13/02

covered by

F26B13/10

F26B13/04

covered by

F26B13/10

F26B13/20

covered by

F26B13/104

F26B23/08

covered by F26B3/343, F26B3/347

In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.

F26B1/00

Processes for drying

F26B1/00

Preliminary treatment of solid materials or objects to facilitate drying

, e.g. mixing or backmixing the materials to be dried with predominantly dry solids F26B5/005 takes precedence

F26B1/005

by means of disintegrating, e.g. crushing, shredding, milling the materials to be dried F26B17/102, F26B17/103 take precedence

F26B3/00

Drying solid materials or objects by processes involving the application of heat in specific machines or apparatus F26B9/00 - F26B19/00

F26B3/005

by applying a combustible liquid onto the materials, the liquid being burnt off subsequently

F26B3/02

by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air

F26B3/283 and F26B3/343 take precedence

F26B3/04

the gas or vapour circulating over or surrounding the materials or objects to be dried F26B3/14 takes precedence

F26B3/06

the gas or vapour flowing through the materials or objects to be dried F26B3/14 takes precedence

F26B3/08

so as to loosen them, e.g. to form a fluidised bed

"fluidised-bed" technique in general B01J8/24; centrifugal fluidised beds F26B7/007

F26B3/082

arrangements of devices for distributing fluidising gas, e.g. grids, nozzles F26B3/0926 takes precedence; such devices per se

B01J8/44

F26B3/084

with heat exchange taking place in the fluidised bed

, e.g. combined direct and indirect heat exchange

F26B3/088

using inert thermally-stabilised particles

F26B3/092

agitating the fluidised bed, e.g. by vibrating or pulsating

F26B3/0923

by mechanical means, e.g. vibrated plate, stirrer

F26B3/0926

by pneumatic means, e.g. spouted beds

F26B3/097

using a magnetic field to stabilise the fluidised bed

F26B3/10

the gas or vapour carrying the materials or objects to be dried with it

F26B3/12

in the form of a spray

, i.e. sprayed or dispersed emulsions or suspensions spray drying of solutions B01D1/18

F26B3/14

the materials or objects to be dried being moved by gravity

F26B3/16

in a counter-flow of the gas or vapour

F26B3/18

by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact

F26B3/20

the heat source being a heated surface

, e.g. a moving belt or conveyor

F26B3/22 takes precedence

F26B3/205

the materials to be dried covering or being mixed with heated inert particles which may be recycled

F26B3/22

the heat source and the materials or objects to be dried being in relative motion, e.g. of vibration

F26B3/225

the materials or objects to be dried being immersed in a fluidised bed of heated particles for webs F26B13/106

F26B3/24

the movement being rotation

F26B3/26

the movement being performed by gravity

F26B3/28

by radiation, e.g. from the sun

F26B3/283

in combination with convection

F26B3/286

by solar radiation

F26B3/30

from infra-red-emitting elements

by radiation emanating from passages containing heated fluids other than combustion gases F26B23/10

F26B3/305

the infra-red radiation being generated by combustion or combustion gases

F26B3/32

by development of heat within the materials or objects to be dried

, e.g. by fermentation or other microbiological action

F26B3/34

by using electrical effects

F26B3/343

in combination with convection

F26B3/347

Electromagnetic heating, e.g. induction heating or heating using microwave energy

F26B3/353

Resistance heating

, e.g. using the materials or objects to be dried as an electrical resistance

F26B3/36

by using mechanical effects, e.g. by friction by using ultrasonic vibrations F26B5/02

F26B5/00

Drying solid materials or objects by processes not involving the application of heat separating liquids from solids by straining B01D; replacing liquids in wet solids by other liquids, e.g. water by spirit, B01D12/00; drying by electrophoresis B01J

F26B5/005

by dipping them into or mixing them with a chemical liquid, e.g. organic; chemical, e.g. organic, dewatering aids F26B3/005 takes precedence; using chemical vapours or gases F26B21/14

F26B5/02

by using ultrasonic vibrations

using sonic energy generated by pulse jet combustion F26B23/026

F26B5/04

by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum

F26B11/049 and F26B17/128 take precedence

In subgroups F26B5/04 and F26B5/06, the term "not including the application of heat" is disregarded for classification purposes. When drying with the use of vacuum, frequently heat is applied to compensate for the cooling effect or to promote sublimation from the frozen state

F26B5/041

for drying flowable materials, e.g. suspensions, bulk goods, in a continuous operation, e.g. with locks or other air tight arrangements for charging/discharging

F26B5/042

for drying articles or discrete batches of material in a continuous or semi-continuous operation, e.g. with locks or other air tight arrangements for charging/discharging

F26B5/044

for drying materials in a batch operation in an enclosure having a plurality of shelves which may be heated F26B5/045 takes precedence

F26B5/045

for drying thin, flat articles in a batch operation, e.g. leather, rugs, gels

F26B5/047

for continuous drying of material in long length, e.g. webs

F26B5/048

in combination with heat developed by electro-magnetic means, e.g. microwave energy

F26B5/06

the process involving freezing

F26B5/065

the product to be freeze-dried being sprayed, dispersed or pulverised

F26B5/08

by centrifugal treatment

F26B5/10

the process involving freezing

F26B5/12

by suction

F26B5/14

by applying pressure, e.g. wringing

by brushing

by wiping

F26B5/16

by contact with sorbent bodies, e.g. absorbent mould

by admixture with sorbent materials

F26B7/00

Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F26B3/00 and F26B5/00

F26B1/005, F26B5/04, F26B23/026 take precedence

F26B7/002

using an electric field and heat

F26B7/005

using admixture with sorbent materials and heat, e.g. generated by the mixture

F26B7/007

centrifugal fluidised beds

F26B9/00

Machines or apparatus for drying

F26B9/00

Machines or apparatus for drying solid materials or objects at rest or with only local agitation

Domestic airing cupboards

domestic laundry drying cabinets or chambers having heating or ventilating means D06F58/10

F26B9/003

Small self-contained devices, e.g. portable

F26B9/006

Removable covering devices, e.g. pliable or flexible

F26B9/02

in buildings special types of buildings E04H

F26B9/04

in presses or clamping devices

F26B9/06

in stationary drums or chambers

F26B9/063

for drying granular material in bulk, e.g. grain bins or silos with false floor shallow layer rotary sweep drying bins F26B9/10; perforated wall silos with drying air channels in the stack F26B9/103

F26B9/066

the products to be dried being disposed on one or more containers, which may have at least partly gas-previous walls, e.g. trays or shelves in a stack F26B9/003 takes precedence; in combination with duct systems F26B21/00

F26B9/08

including agitating devices

, e.g. pneumatic recirculation arrangements unloading devices F26B25/002; spouted beds F26B3/0926

F26B9/082

mechanically agitating or recirculating the material being dried

F26B9/085

moving the material in a substantially vertical sense using conveyors or agitators, e.g. screws or augers with vertical axis, which are positioned inside the drying enclosure

F26B9/087

the recirculation path being positioned outside the drying enclosure

F26B9/10

in the open air

in pans or tables in rooms

Drying stacks of loose material

on floors which may be covered, e.g. by a roof ventilating means of stacks for agricultural produce A01F25/08

F26B9/103

using fixed or removable drying air channels placed in the stack, e.g. horizontally or vertically

F26B9/106

the channels to be inserted into the stack, e.g. after its formation

F26B11/00

Machines or apparatus for drying solid materials or objects with movement which is non-progressive

F26B11/02

in moving drums or other mainly-closed receptacles F26B11/18 takes precedence

F26B11/022

Arrangements of drives, bearings, supports

F26B11/024

Arrangements for gas-sealing the drum

F26B11/026

Arrangements for charging or discharging the materials to be dried, e.g. discharging by reversing drum rotation, using spiral-type inserts

F26B11/028

Arrangements for the supply or exhaust of gaseous drying medium for direct heat transfer, e.g. perforated tubes, annular passages, burner arrangements, dust separation, combined direct and indirect heating

F26B11/04

rotating about a horizontal or slightly-inclined axis

F26B11/022, F26B11/024, F26B11/026, F26B11/028 take precedence

F26B11/0404

with internal subdivision of the drum, e.g. for subdividing or recycling the material to be dried spiral-type or other inserts for discharging purposes F26B11/026

F26B11/0409

the subdivision consisting of a plurality of substantially radially oriented internal walls, e.g. forming multiple sector-shaped chambers

F26B11/0413

the subdivision consisting of concentric walls, e.g. multi-pass or recirculation systems; the subdivision consisting of spiral-shaped walls tubular or annular passages for supply or exhaust of drying gas F26B11/028

F26B11/0418

the subdivision consisting of a plurality of parallel tubes, e.g. through which the material to be dried is conveyed in single or multi-pass fashion sector-shaped tubes F26B11/0409

F26B11/0422

the tubes having internal members

F26B11/0427

Constructional details, e.g. arrangements of drives, supports, bearings, gas-sealing, heating medium supply or exhaust

F26B11/0431

Arrangements for feeding or discharging materials to be dried

F26B11/0436

comprising multiple stages, e.g. multiple rotating drums subsequently receiving the material to be dried; Provisions for heat recuperation

F26B11/044

the drum or receptacle having a variable outer or inner diameter in axial direction, e.g. trunconical; the drum or receptacle having a polygonal or non-cylindrical shape F26B11/0436, F26B11/049 take precedence

F26B11/0445

having conductive heating arrangements, e.g. heated drum wall

F26B11/045

using heated internal elements, e.g. which move through or convey the materials to be dried loose bodies, e.g. balls F26B11/0472

F26B11/0454

the elements being discs

F26B11/0459

the elements being chains

F26B11/0463

having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall F26B11/0404, F26B11/0445 take precedence

F26B11/0468

for disintegrating, crushing, or for being mixed with the materials to be dried

F26B11/0472

the elements being loose bodies or materials, e.g. balls, which may have a sorbent effect chains fixed to the drum F26B11/0459

F26B11/0477

for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum

F26B11/0481

the elements having a screw- or auger-like shape, or form screw- or auger-like channels

F26B11/0486

the elements being held stationary, e.g. internal scraper blades

F26B11/049

with provisions for working under increased or reduced pressure, with or without heating

F26B11/0495

with provisions for drying by electro-magnetic means, e.g. radiation, microwaves burner arrangements F26B11/028

F26B11/08

rotating about a vertical or steeply-inclined axis

F26B11/10

with stirring devices which are held stationary

F26B11/12

in stationary drums or other mainly-closed receptacles with moving stirring devices F26B11/22 takes precedence

F26B11/14

the stirring device moving in a horizontal or slightly-inclined plane

F26B11/16

the stirring device moving in a vertical or steeply-inclined plane

F26B11/18

on or in moving dishes, trays, pans, or other mainly-open receptacles

F26B11/181

the receptacle being a foraminous, perforated or open-structured drum or drum-like container, e.g. rotating around a substantially horizontal or vertical axis; the receptacle being multiple perforated drums, e.g. in superimposed arrangement

F26B11/182

Arrangements for the supply or exhaust of gaseous drying medium, e.g. perforated tubes F26B11/185 takes precedence

F26B11/184

provided with internal means for mixing, stirring or conveying the materials to be dried F26B11/182, F26B11/185 take precedence

F26B11/185

the drum provided with internal subdivisions or multiple walls

F26B11/187

the subdivisions consisting of sector-shaped perforated chambers

F26B11/188

the subdivisions consisting of concentric perforated walls, or spiral-shaped walls

F26B11/20

with stirring devices which are held stationary

F26B11/22

on or in stationary dishes, trays, pans, or other mainly-open receptacles, with moving stirring devices

F26B13/00

Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement

F26B13/001

Drying and oxidising yarns, ribbons or the like

F26B13/002

Drying coated, e.g. enamelled, varnished, wires

F26B13/003

in the shape of spools, coils, bobbins or the like F26B21/007 takes precedence; drying yarn hanks F26B15/124

F26B13/004

Drying ribbons

F26B13/005

Seals, locks, e.g. gas barriers for web drying enclosures

F26B13/006

with movement in a spiral path

F26B13/007

Treating a particular portion of the web or plate, e.g. the edge

F26B13/008

Controlling the moisture profile across the width of the material

F26B13/06

with movement in a sinuous or zig-zag path

F26B13/08

using rollers

F26B13/10

Arrangements for feeding, heating or supporting materials

Controlling movement, tension or position of materials heating processes F26B3/00

F26B13/101

Supporting materials without tension, e.g. on or between foraminous belts

F26B13/102

the materials, e.g. web, being supported in loops by rods or poles, which may be moving transversely, e.g. festoon dryers

F26B13/103

with mechanical supporting means, e.g. belts, rollers, and fluid impingement arrangement having a displacing effect on the materials

F26B13/104

supported by fluid jets only; Fluid blowing arrangements for flotation dryers, e.g. coanda nozzles

F26B13/105

Drying webs by contact with heated surfaces other than rollers or drums

F26B13/106

by moving them through a fluidised bed of heated particles

F26B13/107

Arrangements for guiding the feed end or trailing end of the materials, e.g. threading of webs

F26B13/108

using one or more blowing devices, e.g. nozzle bar, the effective area of which is adjustable to the width of the material

F26B13/12

Controlling movement, tension or position of material

F26B13/14

Rollers,

drums, cylinders

sorbent surfaces F26B13/26;

Arrangement of drives, supports, bearings, cleaning

F26B13/145

on the non-perforated outside surface of which the material is being dried by convection or radiation

F26B13/16

perforated

in combination with hot air blowing or suction devices, e.g. sieve drum dryers

F26B13/18 takes precedence

F26B13/18

heated

cooled,

e.g. from inside, the material being dried on the outside surface by conduction

F26B13/183

Arrangements for heating, cooling, condensate removal

F26B13/186

using combustion

F26B13/22

Arrangements of gas flames

F26B13/24

Arrangements of devices using drying processes not involving heating such processes per se

F26B5/00

F26B13/26

using sorbent surfaces, e.g. bands or coverings on rollers

F26B13/28

for applying pressure

for brushing

for wiping

F26B13/30

for applying suction

F26B13/16 takes precedence

F26B15/00

Machines or apparatus for drying objects with progressive movement

Machines or apparatus with progressive movement for drying batches of material in compact form F26B13/00, F26B17/00 take precedence; conveyors in general B65G

F26B2015/003

the load carrying elements having provisions for defining drying gas ducts, e.g. panels

F26B2015/006

the drying tunnel not being partitioned by load carrying elements

F26B15/02

with movement in the whole or part of a circle

F26B15/04

in a horizontal plane

F26B15/06

involving several planes, one above the other

F26B15/08

in a vertical plane

F26B15/085

with endless clamp or tray conveyor, e.g. wicket conveyor

F26B15/10

with movement in a path composed of one or more straight lines, e.g. compound

, the movement being in alternate horizontal and vertical directions

F26B15/105

the articles, e.g. can lids, discs, being conveyed by means of rotating screw spindles

F26B15/12

the lines being all horizontal or slightly inclined

F26B15/122

the objects or batches of material being carried by transversely moving rollers or rods which may rotate

F26B15/124

the objects being yarn hanks

F26B15/126

the material being "pasta" products, e.g. spaghetti

F26B15/128

the rods being attached at one end to an endless conveying means, the other end being free to receive hollow articles, e.g. cans

F26B15/14

the objects or batches of materials being carried by trays or racks

or receptacles, which may be connected to endless chains or belts trays, racks per se F26B25/18; with vertical movement F26B15/22

F26B15/143

the receptacles being wholly or partly foraminous, e.g. containing a batch of loose material F26B15/146, F26B15/205, F26B15/26 take precedence

F26B15/146

applying multiple superimposed tray conveyors, the materials to be dried being dropped onto subsequent conveyor stretches, e.g. by allowing the trays to tilt at one point

F26B15/16

the objects or batches of materials being carried by wheeled trucks

F26B15/18

the objects or batches of materials being carried by endless belts

F26B15/20

the lines being all vertical or steeply inclined

F26B15/205

the objects or batches of materials being carried by a vertical stack of foraminous trays or shelves either moving through a shaft or forming, with their edges, a moving shaft, the shaft being supplied with drying air

F26B15/22

the objects or batches of materials being carried by endless belts

the objects or batches of material being carried by trays or holders supported by endless belts or chains F26B15/205 takes precedence; vertical bulk material conveyor-driers F26B17/06

F26B15/24

in a zig-zag path

F26B15/26

with movement in a helical path

F26B17/00

Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement F26B13/00 takes precedence

; feed or discharge arrangements F26B25/002

F26B17/001

the material moving down superimposed floors superimposed belts F26B17/08

F26B17/002

with floors which may rotate and turn over as a whole or in part, e.g. around a horizontal axis superimposed tray conveyors F26B15/146

F26B17/003

with fixed floors provided with scrapers F26B17/006 and F26B17/007 take precedence

F26B17/005

with rotating floors, e.g. around a vertical axis, which may have scrapers F26B17/002, F26B17/006, F26B17/007 take precedence

F26B17/006

the movement being imparted by oscillation or vibration

F26B17/007

having a sieve, e.g. classifying arrangement

F26B17/008

the material being a slurry or paste applied onto moving elements, e.g. chains, plates, for drying thereon, and subsequently removed therefrom the element being an endless web or belt-like conveyor F26B17/023; the element being a disc F26B17/282; the element being loose inert particles F26B3/205

F26B17/02

with movement performed by belts carrying the materials

with movement performed by belts

or elements attached to endless belts or chains

propelling the materials over stationary surfaces

the movement being in a helical path F26B15/26; F26B17/003, F26B17/263 take precedence

F26B17/023

the material being a slurry or paste, which adheres to a moving belt-like endless conveyor for drying thereon, from which it may be removed in dried state, e.g. by scrapers, brushes or vibration

F26B17/026

the material being moved in-between belts which may be perforated

F26B17/04

the belts being all horizontal or slightly inclined F26B17/08 takes precedence

F26B17/045

the material on the belt being agitated, dispersed or turned over by mechanical means, e.g. by vibrating the belt, by fixed, rotating or oscillating elements

F26B17/06

the belts being all vertical or steeply inclined F26B17/08 takes precedence

; for materials in discrete batches F26B15/22

F26B17/08

the belts being arranged in a sinuous or zig-zag path

F26B17/026 takes precedence; superimposed tray conveyors F26B15/146

F26B17/10

with movement performed by fluid currents, e.g. issuing from a nozzle,

e.g. pneumatic, flash, vortex or entrainment dryers

F26B3/08 takes precedence

F26B17/101

the drying enclosure having the shape of one or a plurality of shafts or ducts, e.g. with substantially straight and vertical axis F26B17/107 takes precedence

F26B17/102

with material recirculation, classifying or disintegrating means F26B17/103 takes precedence

F26B17/103

with specific material feeding arrangements, e.g. combined with disintegrating means

F26B17/104

with fixed or moving internal bodies for defining or changing the course of the entrained material

F26B17/105

the shaft or duct, e.g. its axis, being other than straight, i.e. curved, zig-zag, closed-loop, spiral

F26B17/106

the drying enclosure, e.g. its axis, being substantially straight and horizontal, e.g. pneumatic drum dryers; the drying enclosure consisting of multiple substantially straight and horizontal stretches F26B17/107 takes precedence

F26B17/107

pneumatically inducing within the drying enclosure a curved flow path, e.g. circular, spiral, helical; Cyclone or Vortex dryers swirl or curved flow path induced mechanically, i.e. by rotating element F26B3/0923

F26B17/108

using impinging streams of entrained material

F26B17/12

with movement performed solely by gravity

, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft

F26B17/122

the material moving through a cross-flow of drying gas; the drying enclosure, e.g. shaft, consisting of substantially vertical, perforated walls

F26B17/124

the vertical walls having the shape of at least two concentric cylinders with the material to be dried moving in-between

F26B17/126

the vertical walls consisting of baffles, e.g. in louvre-arrangement

F26B17/128

with provisions for working under reduced or increased pressure, with or without heating

F26B17/14

the materials moving through a counter-current of gas

F26B17/1408

the gas being supplied and optionally extracted through ducts extending into the moving stack of material in combination with fluid-heated closed tubes or other heating elements in contact with the stack of material F26B17/16

F26B17/1416

the ducts being half open or perforated and arranged horizontally

F26B17/1425

the ducts being perforated and arranged vertically

F26B17/1433

the drying enclosure, e.g. shaft, having internal members or bodies for guiding, mixing or agitating the material, e.g. imposing a zig-zag movement onto the material F26B17/1408, F26B17/16 take precedence

F26B17/1441

the members or bodies being stationary, e.g. fixed panels, baffles, grids, the position of which may be adjustable

F26B17/145

consisting of non-perforated panels or baffles

F26B17/1458

consisting of perforated panels or baffles; consisting of grids

F26B17/1466

the members or bodies being in movement

F26B17/1475

the movement being a vibration or oscillation F26B17/26 takes precedence

F26B17/1483

the movement being a rotation around a vertical axis

F26B17/1491

the movement being a rotation around a horizontal axis

F26B17/16

the materials passing down a heated surface

, e.g. fluid-heated closed ducts or other heating elements in contact with the moving stack of material F26B17/128 takes precedence

F26B17/18

with movement performed by rotating helical blades or other rotary conveyors

which may be heated

moving materials in stationary chambers

, e.g. troughs

F26B17/20

the axis of rotation being horizontal or slightly inclined

F26B17/205

with multiple chambers, e.g. troughs, in superimposed arrangement

F26B17/22

the axis of rotation being vertical or steeply inclined

F26B17/003 takes precedence

F26B17/24

with movement performed by shooting or throwing the materials

, e.g. after which the materials are subject to impact F26B17/108 takes precedence

F26B17/26

with movement performed by reciprocating or oscillating conveyors propelling materials over stationary surfaces

with movement performed by reciprocating or oscillating shelves, sieves, or trays

F26B17/006 takes precedence

F26B17/263

the conveying element making a rotary working movement while being transversely moved in one direction, the reverse or return movement being effected in an inoperative state, e.g. lifted, in rest

F26B17/266

the materials to be dried being moved in a helical, spiral or circular path, e.g. vibrated helix

F26B17/28

with movement performed by rollers or discs with material passing over or between them, e.g. suction drum, sieve

, the axis of rotation being in fixed position moving rotating rollers F26B15/122

F26B17/282

the materials adhering to, and being dried on, the surface of rotating discs with or without scraping devices

F26B17/284

the materials being dried on the non-perforated surface of heated rollers or drums arrangements for heating or cooling drums, for removal of condensate F26B13/183

F26B17/286

Arrangements for application of materials to be dried onto the drums or rollers; Arrangements for removing dried materials from the drums or rollers, e.g. doctor blades

F26B17/288

the materials being dried on perforated drums or rollers, e.g. sieve or suction drums

F26B17/30

with movement performed by rotary or oscillating containers

with movement performed by rotary floors

the material moving down superimposed floors F26B17/001

F26B17/32

the movement being in a horizontal or slightly inclined plane

F26B17/34

the movement being in a vertical or steeply inclined plane

F26B19/00

Machines or apparatus for drying solid materials or objects not covered by groups F26B9/00 - F26B17/00

F26B19/005

Self-contained mobile devices, e.g. for agricultural produce movable devices with radiation means F26B3/28; small self-contained devices for drying objects at rest F26B9/003

F26B20/00

Combinations of machines or apparatus covered by two or more of groups F26B9/00 - F26B19/00

F26B21/00

Details of general application

F26B21/00

Arrangements

or duct systems, e.g. in combination with pallet boxes,

for supplying and controlling air or gases for drying solid materials or objects

F26B9/10 takes precedence; systems for vehicle body drying B60S3/002

; air conditioning or ventilation in general F24F

F26B21/001

Drying-air generating units, e.g. movable, independent of drying enclosure

F26B21/002

heating the drying air indirectly, i.e. using a heat exchanger F26B23/001 takes precedence; closed-loop systems F26B23/10

F26B21/003

Supply-air or gas filters

F26B21/004

Nozzle assemblies; Air knives; Air distributors; Blow boxes F26B3/082, F26B13/104, F26B13/108, F26B21/006 take precedence

F26B21/005

Drying-steam generating means

F26B21/006

the gas supply or exhaust being effected through hollow spaces or cores in the materials or objects, e.g. tubes, pipes, bottles F26B9/003 and F26B9/103 take precedence

F26B21/007

the objects being bobbin- or spool-like bodies

F26B21/008

the objects being flexible articles, which may be blown up by the drying gas, e.g. tubes, sausage casings fire hoses A62C33/02

F26B21/02

Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure F26B21/08, F26B21/14,

F26B23/022

take precedence

F26B21/022

with provisions for changing the drying gas flow pattern, e.g. by reversing gas flow, by moving the materials or objects through subsequent compartments, at least two of which have a different direction of gas flow varying fan speed F26B21/12

F26B21/024

by using movable fan units

F26B21/026

by reversing fan rotation

F26B21/028

by air valves, movable baffles or nozzle arrangements

F26B21/04

partly outside the drying enclosure

F26B21/006 takes precedence

F26B21/06

Controlling, e.g. regulating, parameters of gas supply F26B21/14 takes precedence; control in general G05

F26B21/08

Humidity

F26B21/083

by using sorbent or hygroscopic materials, e.g. chemical substances, molecular sieves

F26B21/086

by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle

F26B21/10

Temperature

Pressure

F26B23/026 takes precedence

F26B21/12

Velocity of flow

Quantity of flow

, e.g. by varying fan speed, by modifying cross flow area F26B21/004 takes precedence; changing air flow pattern F26B21/022

F26B21/14

using gases or vapours other than air or steam

, e.g. inert gases

F26B21/145

Condensing the vapour onto the surface of the materials to be dried using condensing steam F26B3/00; using chemical liquids F26B5/005

F26B23/00

Heating arrangements

by radiation, e.g. infra-red, ultra-violet, solar F26B3/28 and F26B3/30

; using heated air or gases F26B21/00

F26B23/001

using waste heat

F26B23/002

recovered from dryer exhaust gases F26B23/022 takes precedence

F26B23/004

by compressing and condensing vapour in exhaust gases, i.e. using an open cycle heat pump system

F26B23/005

using a closed cycle heat pump system with recycling of drying medium F26B21/086; using a heat pipe system

F26B23/007

recovered from the dried product burning the product F26B23/028

F26B23/008

using a heat pump cycle

F26B23/02

using combustion heating

F26B3/305, F26B13/186, F26B21/001,

F26B23/10 take precedence

F26B23/022

incinerating volatiles in the dryer exhaust gases, the produced hot gases being wholly, partly or not recycled into the drying enclosure

F26B23/024

by means of catalytic oxidation

F26B23/026

with pulse combustion, e.g. pulse jet combustion drying of particulate materials

F26B23/028

using solid fuel; burning the dried product

F26B23/04

using electric heating F26B23/10 takes precedence

F26B23/06

resistance heating

F26B23/10

using tubes or passages containing heated fluids

, e.g. acting as radiative elements; Closed-loop systems for combustion gases F26B3/305

F26B25/00

Details of general application not covered by group F26B21/00 or F26B23/00 loading, conveying, and unloading in general B65G

F26B25/001

Handling, e.g. loading or unloading arrangements

F26B25/002

for bulk goods F26B17/103 takes precedence

F26B25/003

for articles

F26B25/004

in the shape of discrete sheets wicket conveyors F26B15/085

F26B25/005

Treatment of dryer exhaust gases incineration of volatiles F26B23/022

F26B25/006

Separating volatiles, e.g. recovering solvents from dryer exhaust gases

F26B25/007

Dust filtering; Exhaust dust filters

F26B25/008

Seals, locks, e.g. gas barriers or air curtains, for drying enclosures F26B11/024 and F26B13/005 take precedence

F26B25/009

Alarm systems; Safety sytems, e.g. preventing fire and explosions using inert gases F26B21/14

F26B25/02

Applications of driving mechanisms, not covered by another subclass

F26B25/04

Agitating, stirring, or scraping devices

arrangement of doctor blades F26B17/286

F26B25/06

Chambers, containers, or receptacles

large containers having means for heating, cooling, aerating or other conditioning of contents B65D88/74

F26B25/063

Movable containers or receptacles, e.g. carts, trolleys, pallet-boxes for use in freeze-drying apparatus F26B5/06; in general B62D

F26B25/066

Movable chambers, e.g. collapsible, demountable self-contained mobile devices, e.g. for agricultural produce F26B19/005

F26B25/08

Parts thereof

F26B25/10

Floors, roofs, or bottoms

False bottoms

F26B25/12

Walls or sides

Doors

F26B25/14

Chambers, containers, receptacles of simple construction

F26B25/16

mainly closed, e.g. drum

F26B25/18

mainly open, e.g. dish, tray, pan

, rack for drying agricultural produce A01F25/12

F26B25/185

Spacers; Elements for supporting the goods to be dried, i.e. positioned in-between the goods to build a ventilated stack separators for articles packaged in stacks B65D57/00; manipulating spacers for stacking purposes B65G57/005

F26B25/20

Rollers F26B25/06,

F26B13/14

take precedence

F26B25/22

Controlling the drying process in dependence on liquid content of solid materials or objects

F26B25/225

by repeated or continuous weighing of the material or a sample thereof

F26B2200/00

Drying processes and machines for solid materials characterised by the specific requirements of the drying good

F26B2200/02

Biomass, e.g. waste vegetative matter, straw

F26B2200/04

Garbage

F26B2200/06

Grains, e.g. cereals, wheat, rice, corn

F26B2200/08

Granular materials

F26B2200/10

Grass

F26B2200/12

Manure

F26B2200/14

Sand

F26B2200/16

Sea weed

Marine products

F26B2200/18

Sludges, e.g. sewage, waste, industrial processes, cooling towers

F26B2200/20

Teas, i.e. drying, conditioning, withering of tea leaves

F26B2200/22

Tobacco leaves

F26B2200/24

Wood particles, e.g. shavings, cuttings, saw dust

F26B2210/00

Drying processes and machines for solid materials or objects characterised by the specific requirements of the drying good

F26B2210/00

Drying processes and machines for solid objects characterised by the specific requirements of the drying good

F26B2210/02

Ceramic articles or ceramic semi-finished articles

F26B2210/04

Eggs

F26B2210/06

Long pasta, e.g. spaghetti

F26B2210/08

Short pasta, e.g. macaroni, vermicelli

F26B2210/10

Umbrellas

F26B2210/12

Vehicle bodies, e.g. after being painted

F26B2210/14

Veneer, i.e. wood in thin sheets

F26B2210/16

Wood, e.g. lumber, timber