Anti-condensation device of dry dust collector for high-humidity dust-containing air

Abstract

The invention provides an anti-condensation device of a dry dust collector for high-humidity dust-containing air. The anti-condensation device comprises a shell, wherein the shell is provided with an access door; an air inlet and an air outlet are formed at the left and the right ends of the shell respectively; an evaporator and a condenser are arranged in turn in the shell and are arranged over against the air inlet; a water collecting dish is arranged below the evaporator and is connected with a drain opening by a pipeline, wherein the drain opening is arranged on the bottom end of the shell; by adoption of the anti-condensation device, the problem of unable to adopt the dry dust collector in when processing the high-humidity dust-containing air can be effectively solved, the water treatment cost and the water source waste caused by using a wet dust collection are avoided; the anti-condensation device is simple in structure and convenient to mount, with practical value in both new plant and existing plant which are provided with high-humidity dust-containing process exhaust; and has the following characteristics of simple field management, easy operation, etc.

Description

technical field [0001] The invention belongs to the field of bag-type dry dust collector equipment manufacturing, and in particular relates to an anti-condensation device for high-humidity dust-laden air dry dust collector. Background technique [0002] In industrial production, process emissions often have high moisture content and require dust removal to meet the emission concentration requirements of environmental protection standards. Because the exhaust air contains a large amount of water vapor, there is often secondary pollution of water and water treatment when wet dust removal is used. Problems such as high cost, unrecyclable dust, and high emission concentration cannot meet the requirements of emission standards. If the dust-laden air is prevented from dew condensation in the dry dust collector, the exhaust system can adopt dry dust removal such as bag dust collectors to avoid problems such as environmental protection failure and secondary pollution, and can also r...

AI Technical Summary

Problems solved by technology

[0003] At present, there are mainly two ways to deal with high-humidity and dust-laden air in China: one is to use wet dust removal method, that is, the high-humidity dust-laden air is discharged to the atmosphere after being dedusted by a wet dust collector. This method has the following problems. The dust removal efficiency is not high, and the discharge often exceeds the standard. Even if the discharge does not exceed the standard temporarily, but with the country's emphasis on environmental protection, the discharge standard is constantly improving, and there is a risk of secondary transformation; the second is the water treatment problem. , the use of wet dust removal, that is, the dust in the air is discharged into the water, there is a problem of water treatment, and water treatment facilities are required to ensure that the discharge concentration of the water reaches the standard, and it also wastes water resources; the third is that the dust cannot be recycled dry, For dust with useful value, wet dust removal requires dust precipitation, collection, drying and other processes. The process is complex, high energy consumption, low recovery rate and other problems. For dust with no use value, wet recovery has dust precipitation and dehydration Process requirements, if the dehydration is not complete, it is fortunate that sewage will be precipitated during storage and transportation, causing pollution

Another way is to use a dry dust collector such as a bag type. Because condensation often occurs inside the dust collector, the filter material is easily blocked, the system cannot operate normally, and the filter material needs to be replaced frequently. Not only is the labor intensity high, the filter material life is short, The replacement cost of the filter material is high, and the production is often stopped due to the clogging of the dust collector, which affects the normal production and needs to be improved

Images