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Noise reduction mine ventilator

A ventilator and mine-used technology, applied to mechanical equipment, machines/engines, liquid fuel engines, etc., can solve problems such as poor ventilation, complex structure, and high energy consumption, and achieve simple structure, wide noise reduction frequency, and reduced noise effect

Inactive Publication Date: 2016-11-16
徐州安普瑞特能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional centrifugal mine ventilator equipment has complex structure, poor ventilation effect, high energy consumption, and large noise when the ventilator is working.

Method used

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  • Noise reduction mine ventilator

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Embodiment Construction

[0010] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

[0011] see figure 1 , a sound-absorbing mine ventilator, comprising a cylinder 9, a first ventilating device, a second ventilating device, a low-frequency sound-absorbing layer 12 and a high-frequency sound-absorbing layer 13, the first ventilating device is connected in series with the second ventilating device, The first ventilation device includes a collecting cover 1, a flow separation chamber 4 and a first impeller 5, and the first impeller 5 is driven by a first motor 3; the second ventilation device includes an exhaust cone 8, a diffuser 10 and The second impeller 6, the second impeller 6 is driven by the second motor 7, the first motor 3 and the second motor 7 are permanent magnet DC motors, and the first ventilation device and the second ventilation device are arranged inside the cylinder 9; the cylinder A sound-absorbing layer 2 is arran...

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Abstract

The invention discloses a sound-absorbing mine ventilator, which comprises a cylinder body, a first ventilation device, a second ventilation device, a low-frequency sound-absorbing layer and a high-frequency sound-absorbing layer, the first ventilation device and the second ventilation device are connected in series, The first ventilation device includes a collecting cover, a flow separation chamber and a first impeller, and the first impeller is driven by a first motor; the second ventilation device includes an exhaust cone, a diffuser and a second impeller, and the second impeller Driven by the second motor, the first ventilation device and the second ventilation device are arranged inside the cylinder; the outside of the cylinder is provided with a sound-absorbing layer, and the outside of the cylinder is provided with legs; the low-frequency sound-absorbing layer is located on the side of the exhaust cone Inside: the high-frequency sound-absorbing layer is composed of sound-absorbing sheets with a specification of 150 mm. The invention has a simple structure and is convenient to use. The high-frequency sound-absorbing layer and the low-frequency sound-absorbing layer can effectively reduce the outlet noise of the ventilator diffuser, and the sound-absorbing frequency bandwidth can effectively reduce high and low frequency noise.

Description

technical field [0001] The invention relates to the field of mine electromechanical equipment, in particular to a sound-absorbing mine ventilator. Background technique [0002] At present, in coal mines, due to the impact of gas gushing, coal dust flying, personnel breathing, and pit wood decay, harmful and toxic gases continue to increase; at the same time, with the increase of well depth, the underground temperature will also rise . Therefore, underground staff working in this environment for a long time will not only affect their health, but even suffocate them. Especially when the content of methane and coal dust in the air exceeds the specified value, it may cause a gas and coal dust explosion with serious consequences. In order to ensure the health and safe production of underground workers, it is necessary to continuously communicate the dirty air in underground roadways and working faces with the fresh air on the ground, and use centrifugal mine ventilators to impr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/16F04D25/08F04D29/40F04D29/66F04D29/02
CPCF04D25/166F04D25/08F04D29/023F04D29/403F04D29/664
Inventor 姚旭东
Owner 徐州安普瑞特能源科技有限公司