DE59308574D1 - Method and device for applying mortar or concrete by spraying - Google Patents

Method and device for applying mortar or concrete by spraying

Info

Publication number
DE59308574D1
DE59308574D1 DE59308574T DE59308574T DE59308574D1 DE 59308574 D1 DE59308574 D1 DE 59308574D1 DE 59308574 T DE59308574 T DE 59308574T DE 59308574 T DE59308574 T DE 59308574T DE 59308574 D1 DE59308574 D1 DE 59308574D1
Authority
DE
Germany
Prior art keywords
aggregate
mixing
pneumatic conveying
mixer
binder
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 - Fee Related
Application number
DE59308574T
Other languages
German (de)
Inventor
Hans-Peter Dipl Ing Irsch
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.)
PFT GmbH
Original Assignee
PFT GmbH
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 PFT GmbH filed Critical PFT GmbH
Application granted granted Critical
Publication of DE59308574D1 publication Critical patent/DE59308574D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/1238—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/02—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions without using driven mechanical means effecting the mixing
    • B28C5/06—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions without using driven mechanical means effecting the mixing the mixing being effected by the action of a fluid

Abstract

To produce sprayed concrete, a "lean" cement is not mixed with the aggregate in a mixer but rather brought together with the aggregate immediately before or during pneumatic conveying. In the case of the latter variant, the pneumatic conveying stream is charged first with the binder and then with the aggregate in two feeding stations (1; 2) connected one behind the other. The feeding of the material into the pneumatic conveying stream, with its intensively mixing effects, if appropriate also the mixing effect over the length of the conveying stream, replaces the mixing operation in a mixer. Under these conditions, the aggregate does not need to be dried. The duration during which the binder is subject to the moisture of the aggregate is reduced to seconds. There is no clotting or other disturbances of the conveying and of the mixing with the water at the spray nozzle. <IMAGE>
DE59308574T 1992-10-15 1993-08-26 Method and device for applying mortar or concrete by spraying Expired - Fee Related DE59308574D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4234745A DE4234745A1 (en) 1992-10-15 1992-10-15 Method and device for applying mortar or concrete by spraying

Publications (1)

Publication Number Publication Date
DE59308574D1 true DE59308574D1 (en) 1998-06-25

Family

ID=6470511

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4234745A Withdrawn DE4234745A1 (en) 1992-10-15 1992-10-15 Method and device for applying mortar or concrete by spraying
DE59308574T Expired - Fee Related DE59308574D1 (en) 1992-10-15 1993-08-26 Method and device for applying mortar or concrete by spraying

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE4234745A Withdrawn DE4234745A1 (en) 1992-10-15 1992-10-15 Method and device for applying mortar or concrete by spraying

Country Status (3)

Country Link
EP (1) EP0592793B1 (en)
AT (1) ATE166280T1 (en)
DE (2) DE4234745A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9416114D0 (en) * 1994-08-10 1994-09-28 Sandoz Ltd Improvements in or relating to organic compounds
DE9413836U1 (en) * 1994-08-26 1995-07-13 Rombold & Gfroehrer Gmbh & Co Plant for spraying dry building materials
CN102416669A (en) * 2011-11-29 2012-04-18 洛阳师范学院 Novel concrete slurry production system
CN105014788A (en) * 2015-06-22 2015-11-04 刘洋 Multi-purpose building material producing technology and device
CN105484770A (en) * 2016-01-15 2016-04-13 中国矿业大学 Full-pneumatic wet-type pulp shooting machine for mine
CN110696186B (en) * 2019-09-17 2020-08-18 山东科技大学 Wet-type stirring whitewashing all-in-one
WO2021214398A1 (en) * 2020-04-24 2021-10-28 Christian Stephan Spraying machine
CN111650119A (en) * 2020-05-09 2020-09-11 北京科技大学 Simple device for determining multiple filling interval time of stope and using method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1663206A (en) * 1923-06-25 1928-03-20 Macrae Thomas Method of and means for making and delivering quantitative mixtures
GB1111953A (en) * 1966-04-29 1968-05-01 Nii Str Proizv Device for preparing plastic compounds and for conveying them with the aid of compressed air
US3672646A (en) * 1971-04-15 1972-06-27 Detroit Tool & Eng Co Pneumatic cement gun machine
AT360737B (en) * 1979-05-03 1981-01-26 Ivar Wolff Ges M B H Dr DEVICE FOR ADDING AGGREGATES INTO A MATERIAL FLOW

Also Published As

Publication number Publication date
EP0592793A1 (en) 1994-04-20
ATE166280T1 (en) 1998-06-15
EP0592793B1 (en) 1998-05-20
DE4234745A1 (en) 1994-04-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee