Concrete mixer

Abstract

In order to make good-quality concrete, a concrete mixer for mixing materials of concrete by rotation is provided so as to enhance fluidity of a mixture. A mounting frame 7 supporting a drum 2 of a concrete mixer 1 fixes a vibration device 25 via a mounting plate 21. A pair of arms 20 is integrally formed with both ends of the mounting plate 21, while rollers 24 rotationally supported by one ends of the arms 20 respectively contact the outer periphery of the drum 2. A vibration of the vibration device 25 is transmitted from the rollers 24 rotatably supported by the pair of arms 20 to the drum 2, so that the drum 2 vibrates while it rotates. Accordingly, a mixture is liquefied, and thus concrete having a good quality can be produced.

Description

technical field [0001] The invention relates to a concrete mixer for producing raw concrete. The raw concrete is produced by mixing materials composed of gravel, sand, cement, water and a mixture. Background technique [0002] In the past, a concrete mixer was used to mix materials made of water, cement, aggregate and various mixtures to make concrete. The aggregate used to make this concrete generally included coarse aggregate such as sand and quarry and sand and fine aggregate. fine aggregates such as sand. [0003] However, in recent years, most of industrial wastes, such as sludge, stone powder, incineration ash, ceramic powder, glass powder, some on-site soil including old paper and waste slurry, etc., have to be landfilled for disposal, Due to insufficient processing sites and illegal dumping, which greatly increases environmental pollution, this processing can cause great problems. On the one hand, from the viewpoint of nature protection and environmental protection...

AI Technical Summary

Problems solved by technology

[0003] However, in recent years, most of industrial wastes, such as sludge, stone powder, incineration ash, ceramic powder, glass powder, some on-site soil including old paper and waste slurry, etc., have to be landfilled for disposal, This treatment can cause great problems due to insufficient treatment sites and illegal dumping, which greatly increases environmental pollution

On the one hand, from the viewpoint of nature protection and environmental protection, the collection of river sand and mountain sand used as concrete aggregates is restricted. On the other hand, sea sand is not suitable for concrete aggregates due to the deterioration of concrete due to salt content.

Therefore, experiments have been carried out in the past to use waste as concrete aggregates. The waste includes silt, stone powder, incineration ash, ceramic powder, glass powder, and field soil including some old paper and waste slurry that have to be discarded. Some of the old paper and waste slurry contained in ceramic powder, glass powder, and soil used on site generally have a high moisture content and a high water absorption rate. When it is mixed with cement, its resistance increases, so mixing is very difficult.

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