GB387552A - Improvements in withering tea leaf - Google Patents

Improvements in withering tea leaf

Info

Publication number
GB387552A
GB387552A GB1196932A GB1196932A GB387552A GB 387552 A GB387552 A GB 387552A GB 1196932 A GB1196932 A GB 1196932A GB 1196932 A GB1196932 A GB 1196932A GB 387552 A GB387552 A GB 387552A
Authority
GB
United Kingdom
Prior art keywords
air
withering
situated
space
refrigerating system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1196932A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SVEN STROMGREN
ABB Norden Holding AB
Original Assignee
SVEN STROMGREN
ASEA AB
Allmanna Svenska Elektriska AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SVEN STROMGREN, ASEA AB, Allmanna Svenska Elektriska AB filed Critical SVEN STROMGREN
Priority to GB1196932A priority Critical patent/GB387552A/en
Publication of GB387552A publication Critical patent/GB387552A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • 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
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/022—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure 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
    • F26B21/026—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure 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 by reversing fan rotation
    • 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
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/08—Humidity
    • F26B21/086—Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/20—Teas, i.e. drying, conditioning, withering of tea leaves

Abstract

387,552. Drying tea. STROMGREN, S. and ALLM€NNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Võsteras, Sweden. April 26, 1932, No. 11969. [Class 34 (ii).] Air has part of its natural content of moisture removed, and is then circulated through the tea-withering space, being heated without further dehumidification between successive passages through the withering space. Preferably a portion ofthe used air is at the same time replaced by dehumidified air. In the form illustrated, withering lofts 1, 2, 3 are connected to air ducts 10, 11 provided with dampers 12, 13 through fans 4, 5, 6 and 7, 8, 9 adapted to blow the air in either direction. Part of the air escapes through an open damper, and the remainder passes to the transverse shaft 14, in which is situated the condenser 15 of a refrigerating system. If this does not supply sufficient heat, an additional heater may be provided, or outside air may be led in. Air to replace that discharged is drawn in through tubes 19 past the cooling pipes 22 of the refrigerating system, and is supplied to the air circuit by the tube 17 in which a fan 24 may be provided. A passage containing electrical heating elements or humidifying nozzles may be arranged side by side with the shaft 14, from which the circulating air may thus be shunted. Automatic regulators 26, 27 sensitive to dry or wet temperature or the difference between these may be situated in the shafts 10, 11.
GB1196932A 1932-04-26 1932-04-26 Improvements in withering tea leaf Expired GB387552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1196932A GB387552A (en) 1932-04-26 1932-04-26 Improvements in withering tea leaf

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1196932A GB387552A (en) 1932-04-26 1932-04-26 Improvements in withering tea leaf

Publications (1)

Publication Number Publication Date
GB387552A true GB387552A (en) 1933-02-09

Family

ID=9995984

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1196932A Expired GB387552A (en) 1932-04-26 1932-04-26 Improvements in withering tea leaf

Country Status (1)

Country Link
GB (1) GB387552A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2182760A (en) * 1985-11-08 1987-05-20 Henry Christie Mccullough Drying textile yarns
CN107410552A (en) * 2017-09-04 2017-12-01 安庆慧可茶业股份有限公司 The dark brownish green batch of black tea withers apparatus for baking

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2182760A (en) * 1985-11-08 1987-05-20 Henry Christie Mccullough Drying textile yarns
CN107410552A (en) * 2017-09-04 2017-12-01 安庆慧可茶业股份有限公司 The dark brownish green batch of black tea withers apparatus for baking

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