Device for preparing modified fly ash in laboratory

Abstract

The invention discloses a device for preparing modified fly ash in a laboratory, and relates to the technical field of fly ash modification, the device mainly comprises an upper part and a lower part, the upper part is a water bath heating stirrer, the lower part is a centrifugal filtration dryer, and the water bath heating stirrer mainly comprises a water bath heating module, a temperature control sensing module and a mixing stirring module. The centrifugal filtration dryer mainly comprises a centrifugal filtration module, a leaching modification module and a hot air drying module. A sample is fed into the equipment through a sample inlet, parameters such as the stirring speed and time, the water bath heating temperature and time, the sample feeding amount, the centrifugal rotating speed and time, the hot air drying temperature and time and the like are set through a control panel, the equipment can modify fly ash according to set requirements, self-cleaning can be performed after modification is completed, and the device can work again. The whole equipment is high in automation degree, easy to operate, convenient, fast and efficient, the number of personnel operation steps can be reduced, the working efficiency can be improved, the modification effect can be ensured, and modification work can be completed according to set requirements.

Description

technical field [0001] The invention relates to the technical field of fly ash modification, in particular to a device for preparing modified fly ash in a laboratory. Background technique [0002] Fly ash, commonly known as fly ash, is a fine powder solid or hollow amorphous spherical particle produced after coal combustion, and its main components are SiO 2 、A1 2 o 3 , CaO, Fe 2 o 3 and unburned charcoal, and a small amount of other substances; the main minerals include amorphous glass (70% to 80%) and the crystalline mineral mullite (3A1 2 o 3 2SiO2 2 ), quartz (α-SiO 2 ), hematite (Fe 2 o 3 )Wait. In recent years, with the increase of resource consumption, the output of fly ash has been increasing year by year. According to the "2018 National Annual Report on the Prevention and Control of Solid Waste Pollution in Large and Medium-sized Cities in China" issued by the Ministry of Ecology and Environment of China in December 2018, the annual output of fly ash in m...

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Problems solved by technology

[0006] However, in the process of using related methods to modify fly ash in the laboratory, a series of complicated and tedious experimental steps are required, generally including operations such as shaking and shaking, centrifugal filtration, rinsing and modification, especially when a large number of samples are involved. It takes a long time to carry out relevant operations, and the operator needs to participate in the whole process, which wastes manpower and material resources and reduces work efficiency

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