A 3D printing electromagnetic absorbing concrete directional fiber graded feeding system

Abstract

The invention discloses a 3D printing electromagnetic wave absorption concrete orientated fiber classified feeding system. The 3D printing electromagnetic wave absorption concrete orientated fiber classified feeding system comprises a control unit and a first-stage stirring unit used for preliminarily weighing, mixing and stirring dry materials and wet materials, and further comprises a second-stage stirring unit, a fiber orientating unit and a third-stage stirring unit; the second-stage stirring unit comprises a middle-sized stirring barrel, an impeller rotation shaft, a middle-sized impellerand an auxiliary impeller and a coaxial reversing device thereof, the lower portion of the middle-sized stirring barrel is a revolution body of which the section is gradually decreased, the impellerrotation shaft is arranged in the axial direction of the middle-sized stirring barrel, the middle-sized impeller is arranged on the portion, located in the middle-sized stirring barrel, of the impeller rotation shaft, and the coaxial reversing device is coaxially connected to the upper portion of the impeller rotation shaft; and the fiber orientating unit comprises three solenoids, the three solenoids are sequentially arranged on the outer surface of the lower portion of the middle-sized stirring barrel in a surrounding mode from top to bottom, and each solenoid is independently connected witha corresponding switch circuit. According to the 3D printing electromagnetic wave absorption concrete orientated fiber classified feeding system, classified feeding of electromagnetic wave absorptionconcrete can be completed, magnetic fibers in the concrete can be output in an orientated mode, and 3D printing is achieved.

Description

technical field [0001] The invention discloses a 3D printing technology-based electromagnetic wave-absorbing concrete graded mixing and intelligent directional fiber system, which belongs to the technical field of concrete 3D printing. It specifically relates to a device for effectively orienting steel fibers in electromagnetic absorbing concrete with 3D printing technology. Background technique [0002] In recent years, with the development of 3D printing technology, its application fields have expanded from traditional mold manufacturing, jewelry design, automobile industry to construction engineering, medical industry, aerospace and many other fields. At the same time, 3D printing technology is known as the third next industrial revolution. In addition, with the rapid development of the modern electronics industry, various electronic products are flooded in the daily life of human beings, and the electromagnetic radiation caused has various negative effects on the human ...

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Problems solved by technology

[0003] In the prior art, the lack of steel fiber orientation process in the initial setting process between the vibrating process and the maintenance process of steel fiber concrete missed a period of time to improve the strength of steel fiber concrete; at the same time, the steel fibers ineffectively arranged lead to It reduces the waste of steel and does not significantly improve the strength of concrete

In addition, the existing method of improving the arrangement of steel fibers is mainly the centrifugation method, but its requirements on conditions are too harsh and it is difficult to use it on a large scale

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