Needle-sheet-shaped aggregate screening device for ultrahigh pumped concrete
A technology of ultra-high pumping and screening device, applied in classification, solid separation, chemical instruments and methods, etc., can solve the problems of low screening efficiency and large workload of needle-shaped aggregates
Active Publication Date: 2021-12-17
CHONGQING CONSTR ENG NEW BUILDING MATERIALS +1
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Problems solved by technology
[0004] The purpose of this invention is to provide a needle flake aggregate screening device for ultra-high pumping concrete to solve the existing needle flake aggregate screening, Although the screening is simple, the workload is heavy, which leads to the problem of low screening efficiency of needle flake aggregates
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[0026] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0027] Such as figure 1 and 2 As shown, the needle-shaped aggregate screening device for ultra-high pumping concrete includes a bracket 1, an outer fixed table 3 fixed on the bracket, an inner rotary table 2 installed on the bracket, and a fixed top of the inner rotary table 2. The aggregate hopper 5 is fixed on the external fixation platform 3 through a support bracket;
[0028] Such as image 3 and 4 As shown, the upper surface of the outer fixed platform 3 is higher than the upper surface of the inner rotary platform 2, the height difference between the upper surface of the outer fixed platform 3 and the inner rotary platform 2 is smaller than the average diameter of the screened aggregate, and the upper surfa...
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The invention relates to concrete manufacturing, in particular to a needle-sheet-shaped aggregate screening device for ultrahigh pumped concrete. The device comprises a support, an outer fixed table fixed on the support, an inner rotating table mounted on the support and an aggregate hopper fixed above the inner rotating table, and the aggregate hopper is fixed on the outer fixed table through a supporting support; a gap for allowing needle-sheet-shaped aggregates to pass through is reserved between the outer fixed table and the inner rotating table; the inner rotating table is provided with at least one stirring strip, and the stirring strips are positioned in the gap between the outer fixed table and the upper surface of the inner rotating table; and a rotating shaft is arranged on the inner rotating table, the rotating shaft is fixed to the support, and a driving part is arranged on the rotating shaft. According to the device, needle-sheet-shaped aggregates can be rapidly screened out, compared with manual screening, the efficiency is greatly improved, meanwhile, the stirring strips are arranged on the inner rotating table, the aggregates can be prevented from being clamped between the outer fixed table and the inner rotating table, the continuity of the screening process can be guaranteed, and the screening effect of the whole device can also be guaranteed.
Description
technical field [0001] The invention relates to concrete production, in particular to a needle flake aggregate screening device for ultra-high pumping concrete. Background technique [0002] Needle-shaped aggregate is a particle whose ratio of the size of the smallest thickness (or diameter) direction to the largest length (or width) direction of the aggregate particle is less than 0.4. As an important index to evaluate the quality and quality of aggregate, the content of needle flake aggregate affects the performance of concrete. Needle flake aggregate will affect the fluidity of concrete, and at the same time affect the combination of stones, sand and cementitious materials. In order to detect the content of needle-like aggregates in aggregates, it is necessary to screen out such needle-like aggregates to evaluate whether the quality of the aggregates meets the quality requirements. [0003] At present, there are existing methods for detecting needle flakes: gauge method ...
Claims
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Login to View More IPC IPC(8): B07B13/16B07B13/18B07B13/00
CPCB07B13/16B07B13/18B07B13/00Y02W30/91
Inventor 樊先平王春兰凯乐陈敬
Owner CHONGQING CONSTR ENG NEW BUILDING MATERIALS