Low-noise sound insulation sleeve for double-ended ball mill

Abstract

The invention relates to the technical field of mechanical noise reducing and particularly relates to a sound insulation sleeve. The sound insulation sleeve comprises a sound insulation sleeve inner layer (1), a metal foam aluminum plate layer (3), an outer layer sound-absorption fabric-smearing layer (4) and a sound insulation sleeve outer layer (5), wherein an inner layer sound-absorption fabric-smearing layer (2) is laid on the sound insulation sleeve inner layer (1); the metal foam aluminum plate layer (3) is laid on the inner layer sound-absorption fabric-smearing layer (2); the outer layer sound-absorption fabric-smearing layer (4) is laid on the metal foam aluminum plate layer (3); the sound insulation sleeve outer layer (5) is laid on the outer layer sound-absorption fabric-smearing layer (4). The sound insulation sleeve for reducing the noise of a double-ended ball mill is the low-noise sound insulation sleeve having the characteristics of compact structure, convenient implementation, relatively low cost and good sound reducing effect; by utilizing the metal foam aluminum plate layer which is light, can resist high temperature, reduce the cavity noise and can be recycled to form the filling material of the sound insulation sleeve of the ball mill, the noise of the ball mill can be reduced by 12dB-20dB (A), so that the safety protection of operators and the environmental protection are promoted.

Description

technical field [0001] The invention relates to the technical field of mechanical noise reduction, in particular to a sound insulation cover for reducing the noise of a double-inlet and double-outlet steel ball coal mill. Background technique [0002] At present, there are many ways to control the noise of double-inlet and double-outlet steel ball mills in the market. Usually, the sound insulation cover is used to seal the cylinder and the transmission parts, and the sound insulation room of the ball mill is built for control. However, the installation of the sound insulation cover has an adverse effect on the heat dissipation of the operating unit, and the sound insulation cover needs to be removed when the equipment is overhauled, which is easy to cause damage. At the same time, it is difficult to observe the operation of the ball mill, which brings great harm to the on-site maintenance and operation staff. inconvenient. The double-inlet and double-outlet steel ball coal ...

AI Technical Summary

Problems solved by technology

However, as the main noise source in the power plant, the noise of the coal mill is generally as high as 110dB ~ 120dB (A), which has far exceeded the noise of the workshops and workplaces of industrial enterprises stipulated in my country's "Industrial Enterprise Noise Hygienic Standards". The limit value is 85dB~90dB(A), which will cause serious noise pollution to the physical and mental health of power plant operators and the surrounding environment

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