A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of construction waste recycled fine aggregate
The invention discloses a preparation method of construction waste recycled fine aggregate. The preparation method comprises the following steps of: 1, conducting material screening; 2, performing natural air drying; 3, conducting primary crushing; 4, carrying out primary magnetic separation; 5, feeding the construction waste which does not pass through a 60-80-mesh sieve after secondary crushinginto a spiral classifier, and separating out the recycled fine aggregate. According to the invention, when materials are screened, the construction waste is thrown into a water pool, wood and plasticare fished out by using a fishing machine, standing is performed, the construction waste is stirred by using a mechanical plough, standing is carried out for 2-3min after stirring is finished, secondary fishing is conducted, matching is conducted at the final end, the recycled fine aggregate is separated out at by using a spiral classifier, the mud block content and micro powder content indexes inthe recycled fine aggregate are reduced, and the apparent density is effectively improved, so that the overall strength of the recycled aggregate is improved, and the crushing index value is low.
本发明公开了一种建筑垃圾再生细骨料的制备方法，包括以下步骤：步骤一、材料筛选；步骤二、自然风干；步骤三、一次破碎；步骤四、一次磁选；步骤五、将二次破碎后未通过60‑80目筛的建筑垃圾投放至螺旋分级机，分出再生细骨料；本发明通过在材料筛选时，将建筑垃圾投放至水池内，使用打捞机将木头、塑料打捞出，静置，使用机械犁搅动建筑垃圾，搅动完毕后，静置2‑3min，二次打捞，配合在最终端，使用螺旋分级机分出再生细骨料，将再生细骨料内的泥块含量和微粉含量指标降低，表观密度有效提高，使得再生骨料的整体强度提高，压碎指标值低。
Preparation method of construction waste recycled fine aggregate
The invention discloses a preparation method of construction waste recycled fine aggregate. The preparation method comprises the following steps of: 1, conducting material screening; 2, performing natural air drying; 3, conducting primary crushing; 4, carrying out primary magnetic separation; 5, feeding the construction waste which does not pass through a 60-80-mesh sieve after secondary crushinginto a spiral classifier, and separating out the recycled fine aggregate. According to the invention, when materials are screened, the construction waste is thrown into a water pool, wood and plasticare fished out by using a fishing machine, standing is performed, the construction waste is stirred by using a mechanical plough, standing is carried out for 2-3min after stirring is finished, secondary fishing is conducted, matching is conducted at the final end, the recycled fine aggregate is separated out at by using a spiral classifier, the mud block content and micro powder content indexes inthe recycled fine aggregate are reduced, and the apparent density is effectively improved, so that the overall strength of the recycled aggregate is improved, and the crushing index value is low.
本发明公开了一种建筑垃圾再生细骨料的制备方法，包括以下步骤：步骤一、材料筛选；步骤二、自然风干；步骤三、一次破碎；步骤四、一次磁选；步骤五、将二次破碎后未通过60‑80目筛的建筑垃圾投放至螺旋分级机，分出再生细骨料；本发明通过在材料筛选时，将建筑垃圾投放至水池内，使用打捞机将木头、塑料打捞出，静置，使用机械犁搅动建筑垃圾，搅动完毕后，静置2‑3min，二次打捞，配合在最终端，使用螺旋分级机分出再生细骨料，将再生细骨料内的泥块含量和微粉含量指标降低，表观密度有效提高，使得再生骨料的整体强度提高，压碎指标值低。
Preparation method of construction waste recycled fine aggregate
一种建筑垃圾再生细骨料的制备方法
HU WENCHENG (author) / ZHONG LIMING (author)
2020-11-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B02C
CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL
,
Brechen, Pulverisieren oder Zerkleinern allgemein
/
B03C
Magnetische oder elektrostatische Trennung fester Stoffe von festen Stoffen oder flüssigen oder gasförmigen Medien
,
MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS
/
B07B
Trennen fester Stoffe von festen Stoffen durch Sieben, Klassieren oder Sichten oder durch Verwendung von Gasströmungen
,
SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS
Recycled fine aggregate prepared from construction waste
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Construction waste recycled aggregate and preparation method and application thereof
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