Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F26—DRYING
  • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
  • F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F26—DRYING
  • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
  • 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
  • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F26—DRYING
  • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
  • F26B23/00—Heating arrangements
  • F26B23/04—Heating arrangements using electric heating
  • F26B23/06—Heating arrangements using electric heating resistance heating
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F26—DRYING
  • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
  • F26B3/00—Drying solid materials or objects by processes involving the application of heat
  • F26B3/02—Drying solid materials or objects by processes involving the application of heat 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
  • F26B3/04—Drying solid materials or objects by processes involving the application of heat 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 the gas or vapour circulating over or surrounding the materials or objects to be dried
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F26—DRYING
  • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
  • F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
  • F26B9/003—Small self-contained devices, e.g. portable
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
  • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
  • E04B1/70—Drying or keeping dry, e.g. by air vents
  • E04B1/7007—Drying or keeping dry, e.g. by air vents by using electricity, e.g. electro-osmosis

Definitions

• This invention relates to a drier, which is intended for drying stone structures at renovation objects.
• various types of plate driers and infrared resistors are used for heating/drying a structure.
• the devices are left at the object for several weeks, with measurements made at intervals.
• Air-circulated plate driers available on the market are not based on the same technology.
• the present invention is based on the idea of pressure blowing heating air and pressure blowing cooling air at room temperature into the structure.
• Plate driers are inapt to heat/dry the entire thickness of thoroughly wetted concrete. Infrared resistors achieve reasonable good heating of the structure, yet the energy loss is great and heat alone does not dry a concrete structure. Due to radiation, ac- celerated heating of an intermediate floor cannot be performed from the top floor with the inhabitants being present on the bottom floor. What is more, also the operator of the device is exposed to radiation.
• hot air and room temperature cooling air is pressure-blown in alignment into the structure to be dried.
• the cooling will proceed evenly in the structure, so that the structure will not be damaged by temperature variation.
• the drier of the invention is characterised by consisting of a housing, in which overpressure can be generated by means of a blower, with the air discharged from the housing directed to the plane to be dried below, such as a concrete floor, and that the housing comprises one or more thermal resistors, by means of which the drying air can be heated.
• the entire thickness of the structure When the resistors are in on-position, the entire thickness of the structure will be rapidly heated, because the pressure-blown hot air penetrates into the pores of the structure. When the resistors are in off-position, the structure will cool evenly and release moisture when exposed to the pressure-blowing. Separate devices are used for the machine blowing and the moisture removal from the room.
• the invention is applied in continuous repair operations at several objects up to the final measurements and the rebuilding work. The drying periods will be several weeks shorter and the required energy consumption can be more effectively utilised in aligned operation.
• FIG 1 illustrates the drier viewed from below without a perforated steel plate
• Figure 2 illustrate the drier viewed laterally in cross-section
• Figure illustrates the detached perforated steel plate.
• the drier which is intended for drying stone structures at renovation objects, consists of a housing 1 , in which overpressure can be generated by means of a blower 11, with the air discharged from the housing directed to the plane to be dried located below, such as a concrete floor 10.
• the housing comprises two thermal resistors 5, by means of which the drying air can be heated.
• the thermal resistors may have a power of 2-4 kW each.
• Protective plates 7 are provided above the resistors 5.
• the blower 11 is connected via a pipe 4 to a set of pipes 3 with apertures at regular intervals, which is located within the housing 1.
• a perforated steel plate 9 is provided under the drier, the fastener 6 of the resistors 5 and the set of pipes 3 being fixed to the perforated steel plate.
• the housing 1 consists of a polyurethane plate, which is lined with an aluminium plate 2.
• a heat regulation unit and a thermostat 2 are provided above the drier.
• the light-weight polyurethane frames reinforced with the aluminium plate 2 and the perforated steel plate 9 allow the production of driers having different designs and dimensions.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Sustainable Development (AREA)
• Microbiology (AREA)
• Drying Of Solid Materials (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=52281666

Family Applications (1)

Country Status (2)

Citations (3)

• 2014
  • 2014-11-14 FI FIU20140151U patent/FI10709U1/fi active IP Right Grant
• 2015
  • 2015-11-13 WO PCT/FI2015/000041 patent/WO2016075360A1/en active Application Filing

Patent Citations (3)

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