Introduction
With acceleration of industrialization, air pollution is becoming increasingly serious, especially dust pollution. Bag dust collector, as an efficient and stable dust removal equipment, is widely used in various industrial fields. However, in actual operation, bag dust collector faces problems of incomplete cleaning and easy damage of filter bag, these problems reduce both efficiency of dust removal and service life. In order to solve these problems, Venturi tube, as a new auxiliary device, is introduced into bag dust collector. This article will deeply explore the operation mechanism of Venturi tube, and its application in bag dust collector below:
● Mechanism of venturi tube
Venturi tube is a device designed based on the principle of fluid mechanics. It can achieve energy conversion and material separation mainly by utilizing pressure changes during gas flow. When dust-laden gas passing through venturi tube, the change of cross-sectional area of the pipe causes the change of airflow velocity, this change can generate pressure difference, and the pressure difference can induce the generation of secondary airflow, enhance the impact of airflow on filter bag, and then improve the cleaning effect.
● Structure of venturi tube
The venturi tube usually consists of three parts: the contraction section, the throat section and the expansion section. The contraction section is used to gradually reduce the cross-sectional area of airflow channel, and increase airflow velocity; the throat section is the narrow part of venturi tube, where the airflow velocity reaches the maximum; While the expansion section is used to gradually expand the cross-sectional area of airflow channel, and reduce the airflow velocity. Moreover, venturi tube is also equipped with auxiliary equipment, such as water supply system and gas-water separator, to ensure normal operation and efficiency of dust removal.
Effect of venturi tube in bag dust collector
◈ Improve the cleaning effect
Traditional bag filter mainly utilize mechanical vibration or pulse jet to clean dust, but these methods are usually difficult to completely remove dust accumulation on the surface of filter bag, especially deep dust accumulation. However, with venturi tube introduced, the high-speed airflow generated by venturi tube can impact and vibrate on filter bag, loosening and falling off the dust layer to achieve a better cleaning effect. In addition, venturi tube can also induce secondary airflow to enhance the cleaning force and further improve the dust removal efficiency.
◈ Reduce operating cost
The introduction of venturi tube can not only improve the efficiency of dust removal, but also reduce its operating cost. First, since venturi tube can improve the effect of dust removal, thereby reducing the frequency and intensity, then reducing energy consumption and equipment wear; Secondly, venturi tube has a simple structure, so it is easy to install and maintain, and it does not require additional power source, so it can save a lot of cost for operating and maintenance; Finally, emission concentration can be reduced due to improvement of efficiency of dust removal, thus environmental tax is reduced correspondingly.
◈ Increase service life of filter bag
Filter bag is one of the core components of bag filter, its service life directly affects operating cost and dust removal effect of the equipment. The introduction of venturi tube can improve dust cleaning effect and reduce dust accumulation on the surface of filter bag, this can reduce the load on filter bag and extend its service life. In addition, venturi tube can also avoid the damage of filter bag that may occur during traditional cleaning method, further ensuring the stable operation of the equipment.
Summary
As a new auxiliary device, venturi tube can significantly improve the efficiency of dust removal and reduce operating cost. It can also improve the effect of dust cleaning and extend service life of filter bag.
As auxiliary equipment for powder processing equipment, bag dust collector can be widely used in grinding, classifying and modification of powders. Its high capacity for dust removal can effectively remove dust from powders.
Qingdao Epic Powder Machinery Co., Ltd. is a professional manufacturer of powder processing equipment. The products include: jet mill, ball mill, vibration mill, moinho de rolos, various classifiers, surface coating modifiers and related auxiliary equipment, such as dust collector. Dust collector products include: cyclone dust collector and bag dust collector etc. Qingdao Epic is always following the principle of reliable quality, low price, and first-class after-sales service. It has high reputation among customers both home and abroad.
If you are interested in products from Qingdao Epic, please contact staff directly, they are always at your service.
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