Fiber curtain smoke and spark insulating device for bag type dust collector

Abstract

The invention relates to a fiber curtain smoke and spark insulating device for a bag type dust collector, and belongs to the technical field of environment-protecting dust removing plants. The fiber curtain smoke and spark insulating device comprises one or more fiber curtain units mounted in a fiber curtain frame, wherein each of the fiber curtain units comprises a plurality of fiber filaments which are vertically arranged in parallel and capable of quivering; the fiber filaments are arranged to form one or more layered fiber curtains. The fiber curtain smoke and spark insulating device disclosed by the invention can avoid loss caused by filter bag burning due to sparks in the smoke and the broken filter bag due to impact abrasion of coarse particulate matters in the smoke, and emission of pollutants.

Description

technical field [0001] The invention relates to environmental protection and dust removal equipment, in particular to a fiber curtain flue gas and spark blocking device used for a bag type dust collector. Background technique [0002] With the increasing pollution of the air environment and the frequent occurrence of smog, the lingering smog has become one of the restrictive factors that plague my country's economic and social development. Particulate matter emitted by various types of industrial smoke is one of the main sources of pollution that affects air quality, and is also one of the main causes of haze weather. The control of industrial smoke and dust pollution has received widespread attention from the government and society, and the country is making great efforts to control it. Bag filter is one of the most efficient and commonly used equipment for industrial flue gas pollution control, and with the further stringent pollutant discharge standards, bag filter has a ...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing Mars barrier methods are mainly to install barrier plates and orifice air distribution plates at the inlet end of the bag filter. The Mars barrier effect and the uniformity of the air flow rate are not ideal, and the burning bags cannot be completely eradicated. accident happened

For example, the utility model patent of the notification number CN202169119U discloses a spark-resistance bag filter, wherein the first-stage spark-resistance device and the second-stage spark-resistance device are arranged in the main pipeline, and because the space in the main pipeline is narrow, it is prone to blockage, and The first-stage Mars-resistance device and the second-stage Mars-resistance device are rotating blade structures, which only rotate when there is airflow passing through. At this time, the spark blocking effect is not good, and the airflow with sparks tends to flow into the rear filter bag, causing the filter bag to burn. On the other hand, sparks and coarse particles are easy to gather at the rotating shaft in the center of the rotating blade, which will block and affect the blocking effect.

Another example is the utility model patent of notification number CN202460338U, which discloses a fire-proof and dust-removing integrated pulse dust collector, wherein the blocking device is a fire-stop grating, and since the fire-stop grating is a fixed structure, the gap between the corresponding fire-stop gratings is small. In order to play a good barrier effect, the gap between the grilles must be reduced as much as possible. However, once the gap is reduced, it is easy to be blocked. At the same time, the fire grille is a fixed structure. When sparks and coarse particles After gathering on it, it is not easy to fall, and the barrier effect gradually decreases

Another example is a fire-stopping and dust-removing flue disclosed by the utility model patent of notification number CN203269855U, wherein the baffle plate is a circular grid, and the inside of the circular grid is a grid interlaced with latitude and longitude. , it is easier to block, and the barrier effect gradually decreases

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