|Industrial dust treatment equipment series|
|Welding fume exhaust gas treatment series|
|Grinding polishing dust removal equipment|
|Stand-alone dust collector|
|Spiral duct and accessories series|
The ventilation and dust removal systems of the two types of dust removal equipment are mainly divided into local ventilation and overall ventilation.
(1) Local ventilation and local ventilation are divided into local ventilation and local air supply. They both use local airflow to prevent local workplaces from being polluted by harmful substances. The local exhaust hood is used to control and collect the dust and harmful gas at the source of the pollution, and transport the dust or harmful gas through the pipeline to the outside of the purification equipment for purification.
Local air supply mainly uses the local air flow to blow off harmful gases and substances, creating a hygienic environment for local areas. It is mainly applicable to large-scale production workshops with few workers and severe pollution.
The local ventilation system can effectively control the diffusion of pollutants from the Phuket dyeing source to the workshop. Only a small amount of air is needed, which improves the local production environment of the workshop.
(2) Full ventilation Full ventilation is to send clean air to the workshop in a fully ventilated manner to dilute the concentration of harmful substances in the room, while continuously discharging polluted air 1: outdoors, so that the concentration of harmful substances in the room does not exceed the maximum allowable concentration specified in the health standards.
Full ventilation requires large air volume, large supporting equipment and large investment, but it can improve the air environment of disrepair workshops. It is mainly applicable to the following situations:
(1) There are abundant sources of harmful substances in the workshop, and the amount of harmful substances generated is large
Ventilation and dust removal systems of two types of dust removal equipment have limited production conditions, pollution sources are not fixed, and local exhaust facilities are not convenient to use;
③ After local exhaust, the concentration of harmful substances in the room still exceeds the hygienic standard.
Can integrated ventilation eliminate dust pollution?
A common type of integrated ventilation is a skylight in a high-temperature workshop. It uses the feature that the density of hot air is less than the density of cold air, so that it is discharged from the upper skylight, so that outdoor fresh air enters the workshop from below, which reduces the temperature of the workshop.
For dust-contaminated workshops, integrated ventilation may not be appropriate. Because sufficient ventilation requires a lot of ventilation, the exhaust polluted air needs to be purified. Therefore, even if the amount of flue gas emitted during the production process is large, it is mainly the treatment method of the local exhaust system in the mining area of Sichuan Province.
Other countries also use sunroofs, adding low-resistance dust removal devices outside the sunroofs to purify the flue gas. At this time, it is impossible to achieve the purpose by lifting the gas itself, because a large exhaust fan needs to be added to complete, which greatly increases the cost.
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