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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. The effect of material collection

Active Publication Date: 2021-12-14
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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  • Aggregate screening device for self-compacting concrete
  • Aggregate screening device for self-compacting concrete
  • Aggregate screening device for self-compacting concrete

Examples

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Embodiment Construction

[0024] 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.

[0025] like figure 1 As shown, the aggregate screening device for self-compacting concrete includes two fixed brackets 1, a rotating shaft 2 fixed on the two brackets 1, a coil spring tube installed on the rotating shaft 2, and a driving part 4 that drives the rotating shaft; A circumferential peripheral baffle 6 is provided 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 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...

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Abstract

The invention relates to the field of concrete manufacturing, in particular to an aggregate screening device for self-compacting concrete. The aggregate screening device comprises two fixed brackets, a rotating shaft fixed to the two brackets, a spiral spring barrel mounted on the rotating shaft and a driving part for driving the rotating shaft; the spiral spring cylinder comprises a spiral body framework, a feeding end plate and a discharging end plate, wherein the feeding end plate and the discharging end plate are installed at the two sides of the spiral body framework; through holes for mounting the rotating shaft are formed in the feeding end plate and the discharging end plate; and an external thread is arranged on the part, allowing the discharging end plate to slide, of the rotating shaft, at least one distance adjusting nut used for fixing the discharging end plate is further correspondingly arranged on the rotating shaft, and the distance adjusting nut can compress the spiral body framework by adjusting the position of the discharging end plate, so that the screw pitch of the spiral body framework is adjusted. According to the aggregate screening device, by changing the screw pitch of the spiral body framework, screening of flaky aggregates with different thicknesses is achieved, and the efficiency of screening out the flaky aggregates can be remarkably improved.

Description

technical field [0001] The invention relates to the field of concrete production, in particular to an aggregate screening device for self-compacting 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: the gauge metho...

Claims

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Application Information

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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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