Sander for concrete powder

Abstract

The invention relates to a buffing device, in particular to a grinder with a vessel for filling grinded material. The concrete powder grinder comprises a bracket; a motor is arranged on the bracket, a buffing tablet is fixedly connected with the rotating shaft of the motor, a test specimen holding device is arranged opposite to the buffing tablet. The buffing device has the advantages of convenient operation, improvement of the sample preparation precision of the concrete powder sample preparation precision; improvement of the manufacture efficiency of the concrete powder through utilizing motor; and high work efficiency, high precision of powder sample manufacture, resources saving, and realization of the fast sample preparation of the powder sample for use of various chemical analysis.

Description

Technical field [0001] The invention relates to a grinding device, in particular to a grinding machine with a container for holding pulverized materials. Background technique [0002] Concrete is the most commonly used building material in modern human production and life. As a multi-phase heterogeneous material, it has a porous structure from a microscopic point of view. Media such as water, air, and ions penetrate into the concrete through these pores. Although the durability of concrete includes many contents, and these contents are affected by many factors and the mechanism of action is complicated, the common point is that they are all related to the mass transfer capacity of concrete. Most of the corrosion of concrete materials is caused by the intrusion of water and harmful ions. The durability of concrete is closely related to permeability. It is generally believed that the lower the permeability of concrete, the less likely it is for water and corrosive media to penetrat...

AI Technical Summary

Problems solved by technology

[0004] The existing technology generally adopts the method of crushing the concrete and then grinding it. The efficiency of the grinding method is very low, and the powder cannot be accurately prepared layer by layer from the surface of the concrete.

There are also mechanical grinding, such as the Chinese patent disclosed on March 12, 2008, the publication number is CN101138745A, which discloses a high-end turbulent vibration grinding machine, its rotating drive motor is connected with a geared motor, and the geared machine is coupled with a universal drive The drive sprocket is connected to the universal transmission coupling, the drive chain is provided on the drive sprocket, the drive chain is connected with the drive sprocket, the drive sprocket is connected to the hollow shaft, the hollow shaft is connected to the bearing seat, and the bearing The seat is erected on the support, and the hollow shaft is also connected with a rotating cylinder. The rotating cylinder is provided with a manhole, and the machine frame is arranged on the support platform. Driven by a coupling and an exciting motor, this device can grind and refine materials, but its structure is complex, its cost is high, and its grinding accuracy is not high

Images