A kind of aggregate screening device for self-compacting concrete

A technology of self-compacting concrete and screening device, which is applied in the fields of sieving, solid separation, chemical instruments and methods, etc., can solve the problems of low efficiency of screening needle-shaped aggregates, and achieve the advantages of detection, good practicability and efficiency. and the effect of quality improvement

Active Publication Date: 2022-07-29
CHONGQING CONSTR ENG NEW BUILDING MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an aggregate screening device for self-compacting concrete to solve the problem of low efficiency of the existing screening pin flake aggregate

Method used

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  • A kind of aggregate screening device for self-compacting concrete
  • A kind of aggregate screening device for self-compacting concrete
  • A kind of aggregate screening device for self-compacting concrete

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Embodiment Construction

[0024] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples are only used to explain the present invention, but not to limit the scope of the present invention.

[0025] like figure 1 As shown, the aggregate screening device for self-compacting concrete comprises two fixed supports 1, a rotating shaft 2 fixed on the two supports 1, a coil spring cylinder mounted on the rotating shaft 2, and a driving part 4 for driving the rotating shaft; A circumferential peripheral baffle plate 6 is arranged on the periphery of the coil spring cylinder; a collection groove 5 is also provided below the coil spring cylinder.

[0026] like figure 2 As shown, the driving part 4 includes a motor for driving the rotating shaft, a driving pulley mounted on the motor, a driven pulley mounted on the rotating shaft, and a belt connecting the driving pulley and the driven pulley.

[0027] like figure 2 and 3 As show...

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Abstract

The invention relates to the field of concrete manufacturing, in particular to a self-compacting concrete aggregate screening device, comprising two fixed supports, a rotating shaft fixed on the two supports, a coil spring cylinder installed on the rotating shaft, and a driving rotating shaft the driving part; the coil spring cylinder includes a spiral main body frame, a feed end plate and a discharge end plate installed on both sides of the spiral main body frame; the feed end plate and the discharge end plate are provided with a rotating shaft Through holes; the part of the rotating shaft for which the discharge end plate slides is provided with an external thread, and at least one distance-adjusting nut for fixing the discharge end plate is also correspondingly provided on the rotating shaft, and the distance-adjusting nut can be adjusted out The position of the material end plate, thereby compressing the spiral main body skeleton, realizes the adjustment of the pitch of the spiral main body skeleton. The invention realizes the screening of flaky aggregates satisfying different thicknesses by changing the pitch of the helical main body skeleton, and can significantly improve the efficiency of screening flaky aggregates.

Description

technical field [0001] The invention relates to the field of concrete manufacturing, in particular to an aggregate screening device for self-compacting concrete. Background technique [0002] Needle-shaped aggregates are particles whose size ratio of the smallest thickness (or diameter) direction to the largest length (or width) direction of the aggregate particles is less than 0.4. The content of acicular aggregates, as an important indicator for evaluating the quality and quality of aggregates, affects the performance of concrete. Acicular aggregates will affect the fluidity of concrete and the combination of stones, sand, and cementitious materials. In order to detect the content of the aggregate needle-shaped aggregate, it is necessary to sieve out this type of needle-shaped aggregate to evaluate whether the quality of the aggregate meets the quality requirements. [0003] At present, there are existing methods for detecting needle flakes: the gauge method and the verni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B07B1/22B07B1/42B07B1/46
CPCB07B1/22B07B1/42B07B1/4636
Inventor 陈敬辛转红董梦杭刘金芳
Owner CHONGQING CONSTR ENG NEW BUILDING MATERIALS
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