A filter cartridge dust collector with a cone-shaped filter cartridge

Abstract

The invention provides a filter cartridge dust remover with a cone structure filter cartridge, belonging to the technical field of industrial dust removal. A cone structure is arranged inside the filter cartridge of the filter cartridge dust remover and is made of a filter material same as that on the outer part of the filter cartridge, and an included angle between a generatrix of the cone structure and the vertical direction of the filter cartridge is 5-30 DEG; and a fold for filtering material at the outer part of the filter cartridge on one side of a windward side is higher than a fold for filtering material at the outer part of the filter cartridge on one side of a leeward side, and the height H of the fold of the filter material on one side of the windward side is 1.1-1.5 times that of the height h of the fold of the filter material on one side of the leeward side. According to the filter cartridge dust remover provided by the invention, on the one hand, the filter efficiency of the dust remover can be increased, and the volume of the filter cartridge dust remover is reduced; and on the other hand, the service life of the dust remover can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of industrial dust removal, and in particular relates to a filter cartridge dust collector with an internal cone structure and non-uniform distribution of filter material pleat heights. Background technique [0002] With the rapid development of my country's economy, the heavy chemical industry (electric power, metallurgy, building materials, chemical industry, etc.) mainly based on resources and energy consumption is developing rapidly, and the environmental pollution problems brought about by it are also becoming more and more serious. Among the many pollutants , solid particulate matter, especially fine particulate matter, has become the focus of urban air pollution control. The country has set strict emission standards for smoke and dust in the industrial field, and the latest release of air pollutant emission standards for thermal power plants raises the emission standard of smoke to 30mg / m 3 (Ministry ...

AI Technical Summary

Problems solved by technology

The high-speed gas ejected from the nozzle during dust cleaning will induce a large amount of secondary airflow into the filter cartridge for back blowing and dust removal of the filter cartridge, but the conventional filter cartridge has too much cleaning energy at the upper part of the filter cartridge during dust removal The disadvantage of insufficient cleaning energy in the lower part

If the dust cleaning energy of the upper part is too large, the dust removal of this part of the filter material will be more thorough, which will attract more gas flow in the next filtration, resulting in a relative increase in the filtration load of this part of the filter material. If things go on like this, the upper part of the filter cartridge will The material will be damaged in advance so as to affect the service life of the entire filter cartridge dust collector; if the dust cleaning energy of the lower part is too small, the filter material in this part cannot be cleaned normally, so that it will not be able to play a normal filtering role in the next stage of filtration. To a certain extent, the filter area of ​​the entire filter cartridge is reduced, and the filter load of other parts of the filter cartridge is increased, which will also lead to a reduction in the service life of the entire filter cartridge dust collector.

The conventional structure of the filter cartridge causes a large part of the cleaning energy to be wasted in the upper part of the filter cartridge, but when it reaches the bottom of the filter bag, the cleaning energy is not enough to clean the filter material normally. The distribution will definitely affect the service life of the entire filter cartridge dust collector

[0005] At the same time, the conventional filter cartridge dust collector mostly adopts the single-inlet air intake mode, and the single-inlet air intake mode has a certain initial velocity when the airflow just enters the dust collector, and the airflow will generate a jet. When the jet gas meets the dust collector When the rear end face of the windward side is used, a horizontal flow will be formed inside it, so that the filter cartridge on the windward side will be washed horizontally by the dust-laden airflow, and its filtration load will be larger than that on the leeward side, which will cause the filter cartridge to face the wind if things go on like this The filter material on one side of the surface is damaged in advance, which reduces the filtration efficiency of the dust collector, affects the service life of the dust collector, and increases the production cost of the enterprise

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