Dust removal filter bag

1. Ordinary dust removal filter bag

Hengqing Environmental Protection has multiple automatic filter bag forming lines and a series of sewing equipment, which can produce various high temperature, medium temperature, and low temperature round filter bags, elliptical filter bags, flat filter bags, and mechanical vibrating filter bags, etc., with an annual output of over 300000 pieces.

2. Folded dust removal filter bag

2.1 Hengqing Environmental Protection has independently developed and produced pleated filter bags and bag cages, which have applied for multiple invention patents and utility model patents. It provides more options and better cost-effectiveness for ultra-low emission transformation and energy-saving carbon reduction of existing old dust removal equipment:

● No need to modify the dust collector body, increase the system filtration area by 50-100% according to the working conditions;

● The existing high, medium, and low temperature filter materials can be made into folded cloth bags for application;

● Greatly extending the cleaning interval and ultrafine dust emission under the same operating conditions;

● Greatly reduce system pressure difference and energy consumption;

● Significant increase in effective bag spacing and significant improvement in ash removal efficiency;

● Greatly reduce the fatigue damage caused by the impact of the fabric bag and keel, and extend the lifespan of the fabric bag

2.2Main features and advantages                                                                                                                       

● Can significantly increase the air volume of existing dust collectors and increase production capacity

The use of pleated cloth bags to transform the existing dust collector does not require the modification of the dust collector body. By directly replacing the existing cloth bags and keels, the system filtration area can be doubled, and the air volume and production capacity of the dust removal system can be improved according to actual working conditions.

● Greatly improve the collection efficiency of dust collectors, especially PM2.5 and PM10 ultrafine dust, to meet the national ultra-low emission standard of less than 10mg

Replacing regular circular or elliptical cloth bags with folded cloth bags can significantly increase the filtration area of the system, directly reducing the gas to cloth ratio, making the internal airflow field distribution of the dust collector more uniform, reducing the system pressure difference and pulse blowing frequency, thereby reducing the dust emission of the system, especially the emission of ultrafine dust.

● Significantly reduce system operation energy consumption and maintenance costs

The use of pleated fabric bags instead of regular round or elliptical fabric bags significantly reduces the system pressure difference and fan energy consumption; The injection frequency is significantly reduced, resulting in a significant reduction in the use of compressed air and a significant reduction in component losses in the injection system, achieving the goal of energy conservation and carbon reduction.

● Extending the service life of cloth bags

The use of pleated cloth bags instead of regular round or elliptical cloth bags, with a unique combination of filter bags and keels, completely avoids the fatigue damage of the filter bags caused by the horizontal support ring of the ordinary keels. In addition, the lower operating pressure difference and blowing frequency greatly reduce the fatigue damage of the cloth bags and prolong their lifespan.

● The new dust collector adopts folded cloth bags, which can significantly reduce the volume of the dust collector box and the comprehensive construction cost

Using folded cloth bags instead of regular circular or elliptical cloth bags on newly built dust removal equipment, under the same gas to cloth ratio conditions, the dust collector box and pulse injection system can be significantly reduced, ensuring or improving system efficiency while reducing the comprehensive costs of the dust collector body, injection system, civil engineering, etc.