RU2009120412A - Способ приготовления цементного раствора - Google Patents

Способ приготовления цементного раствора Download PDF

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Publication number
RU2009120412A
RU2009120412A RU2009120412/03A RU2009120412A RU2009120412A RU 2009120412 A RU2009120412 A RU 2009120412A RU 2009120412/03 A RU2009120412/03 A RU 2009120412/03A RU 2009120412 A RU2009120412 A RU 2009120412A RU 2009120412 A RU2009120412 A RU 2009120412A
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Russia
Prior art keywords
powder
cement
mixing chamber
vertically oriented
mixer
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RU2009120412/03A
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English (en)
Inventor
Ллойд М. ДЖОРДЖ (CA)
Ллойд М. ДЖОРДЖ
Эшиш ДЬЮБЕЙ (US)
Эшиш ДЬЮБЕЙ
Юджин Скотт СТАЙВЕНДЕР (US)
Юджин Скотт СТАЙВЕНДЕР
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Юнайтед Стейтс Джипсем Компани (Us)
Юнайтед Стейтс Джипсем Компани
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Publication of RU2009120412A publication Critical patent/RU2009120412A/ru

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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
    • B28C5/1276—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 with consecutive separate containers with rotating stirring and feeding or discharging means
    • B28C5/1284—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 with consecutive separate containers with rotating stirring and feeding or discharging means having a feeding hopper and consecutive vertical or inclined mixing container fed at its upper part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/53—Mixing liquids with solids using driven stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/62—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis comprising liquid feeding, e.g. spraying means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/96—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with openwork frames or cages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/82—Combinations of dissimilar mixers
    • B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71775—Feed mechanisms characterised by the means for feeding the components to the mixer using helical screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/0404—Proportioning
    • B28C7/0418—Proportioning control systems therefor
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
    • B28B19/0092—Machines or methods for applying the material to surfaces to form a permanent layer thereon to webs, sheets or the like, e.g. of paper, cardboard
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Panels For Use In Building Construction (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

1. Способ приготовления цементного раствора, подаваемого в виде непрерывной ленты, для равномерного покрытия слоя волокон при производстве армированной строительной цементной панели, который включает в себя следующие операции: ! подача сухого цементного порошка, содержащего цемент, гипс и заполнитель, из бункера в горизонтальный порошковый смеситель, имеющий горизонтально установленный шнек; ! подача сухой цементной порошковой смеси от шнека в горизонтальный предварительный смеситель, снабженный лопаткой, которая вращается относительно центральной горизонтальной оси при помощи шнека; ! подача содержащего воду потока жидкости в горизонтальный предварительный смеситель через впуск; ! перемешивание цементного порошка и жидкости с образованием мокрой цементной порошковой смеси; ! сбрасывание предварительно перемешанной смеси порошка и жидкости из верхнего участка вертикально ориентированной смесительной камеры в нижней участок вертикально ориентированной смесительной камеры, снабженный лопастной мешалкой, которая вращается относительно вертикальной оси при помощи установленного сверху двигателя; ! перемешивание воды и порошка в нижнем участке вертикально ориентированной смесительной камеры; и ! откачивание цементного раствора в устройство для подачи цементного раствора, для нанесения цементного раствора в виде непрерывной ленты на слой волокон на полотне технологической линии для производства армированных волокнами панелей, ! причем порошок и жидкость перемешивают при среднем времени нахождения в нижнем участке смесительной камеры, составляющем ориентировочно от 10 до 360 секунд, в то врем

Claims (12)

1. Способ приготовления цементного раствора, подаваемого в виде непрерывной ленты, для равномерного покрытия слоя волокон при производстве армированной строительной цементной панели, который включает в себя следующие операции:
подача сухого цементного порошка, содержащего цемент, гипс и заполнитель, из бункера в горизонтальный порошковый смеситель, имеющий горизонтально установленный шнек;
подача сухой цементной порошковой смеси от шнека в горизонтальный предварительный смеситель, снабженный лопаткой, которая вращается относительно центральной горизонтальной оси при помощи шнека;
подача содержащего воду потока жидкости в горизонтальный предварительный смеситель через впуск;
перемешивание цементного порошка и жидкости с образованием мокрой цементной порошковой смеси;
сбрасывание предварительно перемешанной смеси порошка и жидкости из верхнего участка вертикально ориентированной смесительной камеры в нижней участок вертикально ориентированной смесительной камеры, снабженный лопастной мешалкой, которая вращается относительно вертикальной оси при помощи установленного сверху двигателя;
перемешивание воды и порошка в нижнем участке вертикально ориентированной смесительной камеры; и
откачивание цементного раствора в устройство для подачи цементного раствора, для нанесения цементного раствора в виде непрерывной ленты на слой волокон на полотне технологической линии для производства армированных волокнами панелей,
причем порошок и жидкость перемешивают при среднем времени нахождения в нижнем участке смесительной камеры, составляющем ориентировочно от 10 до 360 секунд, в то время как вращающаяся лопастная мешалка прикладывает сдвигающее усилие к смеси в смесительной камере, для перемешивания порошка и воды, чтобы получить однородный цементный раствор, который имеет консистенцию, позволяющую цементному раствору равномерно покрывать слой волокон на полотне.
2. Способ по п.1, в котором обеспечивают среднее время нахождения в вертикальной камере ориентировочно от 15 до 240 с и диапазон скоростей вращения лопастной мешалки от 70 до 270 об/мин.
3. Способ по п.1, в котором цементный раствор откачивают со дна вертикально ориентированной смесительной камеры при помощи объемного насоса, который приводится в действие при помощи двигателя, установленного сверху на вертикально ориентированной смесительной камере, причем указанный двигатель также приводит во вращение центральный вал лопастной мешалки.
4. Способ по п.1, в котором лопастная мешалка в вертикально ориентированной смесительной камере имеет множество горизонтальных лопастей и центральный вал, идущий в направлении длины вертикально ориентированной смесительной камеры.
5. Способ по п.1, в котором подачу порошка и жидкости в вертикально ориентированную смесительную камеру регулируют при помощи электронного датчика уровня смеси порошка и воды в смесительной камере.
6. Способ по п.1, в котором регулируют скорость подачи сухого цементного порошка в горизонтально ориентированный предварительный смеситель с помощью гравиметрической системы взвешивания, связанной со шнеком.
7. Способ по п.1, в котором сухой цементный порошок содержит порцию химически активного порошка и, при необходимости, порцию легковесного заполнителя, причем химически активная порция содержит, в пересчете на сухой вес, от 35 до 75 вес.% кальций сульфат альфа полугидрата, от 20 до 55 вес.% гидравлического цемента, от 0,2 до 3,5 вес.% извести и от 5 до 25 вес.% активного пуццолана.
8. Способ по п.1, в котором сухой цементный порошок содержит порцию химически активного порошка и порцию легковесного наполнителя, причем химически активная порция содержит, в пересчете на сухой вес, от 35 до 75 вес.% кальций сульфат альфа полугидрата, от 20 до 55 вес.% портландцемента, от 0,2 до 3,5 вес.% извести и от 5 до 25 вес.% активного пуццолана.
9. Способ по п.8, в котором сухой цементный порошок содержит от 20 до 50%, в пересчете на сухой вес, частиц легковесного заполнителя.
10. Способ по п.9, в котором частицы легковесного заполнителя выбраны из группы, в которую входят керамические микросферы, стеклянные микросферы, сеносферы зольной пыли и перлит.
11. Способ по п.1, в котором электродвигатель с регулируемой скоростью вращения регулирует скорость вращения шнека, чтобы регулировать подачу порошка в горизонтально ориентированный предварительный смеситель, и скорость вращения лопатки, чтобы подавать мокрую порошковую смесь в вертикально ориентированную смесительную камеру.
12. Способ по п.1, в котором цементный раствор откачивают со дна вертикально ориентированной смесительной камеры при помощи объемного насоса, приводимого в действие при помощи вертикально установленного центрального вала лопастной мешалки, который, в свою очередь, приводится во вращение при помощи двигателя, установленного сверху на вертикально ориентированной смесительной камере.
RU2009120412/03A 2006-11-01 2007-10-26 Способ приготовления цементного раствора RU2009120412A (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/555,655 US7524386B2 (en) 2006-11-01 2006-11-01 Method for wet mixing cementitious slurry for fiber-reinforced structural cement panels
US11/555,655 2006-11-01

Publications (1)

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RU2009120412A true RU2009120412A (ru) 2010-12-10

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Country Status (12)

Country Link
US (1) US7524386B2 (ru)
EP (1) EP2086754A4 (ru)
JP (1) JP2010508179A (ru)
CN (1) CN101573226A (ru)
AU (1) AU2007318084A1 (ru)
BR (1) BRPI0718107A2 (ru)
CA (1) CA2668160A1 (ru)
CL (1) CL2007003124A1 (ru)
MX (1) MX2009004595A (ru)
NZ (1) NZ576395A (ru)
RU (1) RU2009120412A (ru)
WO (1) WO2008057274A2 (ru)

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