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A bag filter fan noise collection and utilization system

A bag filter and noise technology, applied in the field of bag filter fan noise collection and utilization system, to achieve good dust filtering effect, broad development space and market prospects, and reduce the number of cleaning times

Active Publication Date: 2017-11-03
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no sound collection equipment and related supporting devices for the noise of the bag filter.

Method used

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  • A bag filter fan noise collection and utilization system
  • A bag filter fan noise collection and utilization system
  • A bag filter fan noise collection and utilization system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: the amount of waste gas q of a known cement mill v =6120m 3 / h, dust concentration ρ=50g / m 3 , gas temperature 100°C. According to the national standard, the emission of dust in this area is 150mg / m N 3. If the emission of exhaust gas reaches the standard, it is necessary to first select the cyclone dust collector as the primary dust collection device, and select the bag filter as the secondary dust collection device. The required nominal filtration area is 110㎡; cylinder diameter: 2530mm; total body height: 6030mm; filtration wind speed: 1.0-1.5m; processing air volume: 6600-9900m 3 ; Filtration area: 1 ~ 2m / min; one round of cleaning time (cleaning time + cleaning interval) is 50min; processing efficiency: 99%. Under the condition that the processing air volume and filtering wind speed remain unchanged, the new technology is adopted to collect and utilize the fan noise, which can effectively extend the cleaning interval of 30 minutes; at the same t...

Embodiment 2

[0018] Example 2: The dust collector used in a cement factory in Sichuan is a bag type dust removal system, and the flue gas volume q v =10000m 3 / h, the initial dust concentration is ρ=6g / m 3 , the cloth is polyester fleece filter material, the temperature of the gas entering the dust collector does not exceed 393K, and the pressure loss is 1200Pa. Filtration speed is 2m / min; filter bag area: 90㎡; filter bag diameter: 200mm; filter bag length: 4m; one round of cleaning time (cleaning time + cleaning interval) is 65min; The waste discharge standard (DB 51-186-93) must make the treatment efficiency of the dust collector reach more than 95%. Under the condition that the processing air volume and filtering wind speed are kept unchanged, the new technology is adopted to collect and utilize the fan noise, which can increase the dust removal efficiency of the dust collector to 99%, extend the cleaning time to 110min, and reduce the vibration of the motor (15~20 times / s) vibration...

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Abstract

The invention relates to and discloses a noise collection and utilization system for a blower of a bag filter. The noise collection and utilization system comprises three parts, namely a sound receiving area, a sound guiding area and a sound dividing area, wherein the sound receiving area comprises a sound receiving hood, a contraction section and a sound collection section; the sound guiding area consists of an elbow and a linear sound guiding tube; the sound dividing area consists of sound dividing tubes; the hood walls or tube walls of all the parts are all made of a metal material with a bright and clean surface and are 10-30 mm in thickness; a noise reduction layer is formed by wrapping of a 5-10 mm damping layer and a 20-50 mm soft material, arranged outside the metal housings and mainly used for preventing a small amount of noise of the blower from transmission. The noise collection and utilization system can fully collect and guide out the noise of the blower and reduces energy loss of noise as much as possible.

Description

technical field [0001] The invention relates to a system for collecting and utilizing fan noise of a bag type dust collector, and belongs to the technical field of new energy and energy saving. Background technique [0002] Noise is the sound produced by the sounding body when it is irregular. The sound is caused by the vibration of the object and propagates in a certain medium (such as solid, liquid, gas) in the form of waves. The noise pollution generally referred to refers to man-made. From a physiological point of view, all sounds that interfere with people's rest, study and work, that is, unwanted sounds, are collectively referred to as noise. Industrial Noise Noise generated by various equipment in factories. The sound level of industrial noise is generally high, which has a greater impact on workers and surrounding residents. [0003] The fan is one of the important equipment for the bag dust removal equipment to purify the air. When the bag filter is working, a fa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D46/02B01D46/42
CPCB01D46/023B01D46/4236
Inventor 代群威李刚赵玉连王岩付晓辛
Owner SOUTHWEAT UNIV OF SCI & TECH
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