Deduster and method for treating haydite kiln tail gas therewith

Abstract

The invention discloses a deduster, which is composed of a deduster cylinder provided with an air inlet, a water outlet as well as an air outlet, and a shower pipe. The deduster cylinder is equipped with a chamber, inside which a fixed column is positioned. Multilayer baffles are fixed on the fixed column in a vertical direction. Each layer of baffle comprises multiple fan-shaped blades, and the blades of adjacent layers of baffles are in staggered arrangement mutually. Each blade and the horizontal plane form an inclined angel a, i.e. a height difference exists between two side faces of eachblade when they are lengthened and intersected. Also, gaps exist between two adjacent blades of the same layer. The method for treating haydite kiln tail gas with the deduster consists of the steps of: a) introducing the tail gas of a haydite kiln into a deduster for dedusting so as to form saturated steam; b) introducing the saturated steam obtained in step a) into a building block curing chamber so as to conduct curing to building blocks with the saturated steam. The deduster of the invention has the advantages of simple structure, high dedusting efficiency, long service life, and low failure rate.

Description

technical field [0001] The invention relates to a dust remover, more specifically to a dust remover used for boiler and kiln tail gas treatment and a method for using the dust remover to treat ceramsite kiln tail gas. Background technique [0002] When the boiler or kiln (such as ceramsite rotary kiln, etc.) is in use, the exhaust gas emitted during the combustion process contains a lot of dust. If it is not treated to meet the environmental protection standards, it will cause great harm to the surrounding environment. , the main way of the existing waste gas dust removal treatment is all kinds of smoke and dust collectors matched with boilers and kilns, and the performance and efficiency of dust collectors are the key to determine the degree of harm to the surrounding environment caused by production. There are many types of dust collectors, and the most commonly used ones are bag dust collectors, cyclone dust collectors and electrostatic precipitators. However, for the du...

AI Technical Summary

Problems solved by technology

However, for dust removal of high-humidity dust-laden gas, the above-mentioned dust collectors have obvious shortcomings, mainly in high-humidity gas, especially kiln exhaust gas, which is easy to condense during equipment operation and cause equipment corrosion, resulting in a significant drop in efficiency

So a wet dust collector appeared, which solved the problem of condensation during the operation of the equipment, but such a dust collector has a relatively low efficiency, and the other does not solve the corrosion problem of the equipment. The existing wet dust collector is based on the structural form Can be divided into spray type and water storage type

There are many nozzles inside the spray dust collector. The water sprayed by the nozzles is exchanged with the exhaust gas to separate the dust in the exhaust gas from the exhaust gas to achieve the purpose of removing the exhaust gas. However, after a period of use, a The water spray hole of the nozzle is easily blocked by dust, causing the nozzle to fail to work, and after the nozzle is damaged (or corroded by water vapor), because it is installed inside the cylinder of the dust collector, its maintenance and replacement are very inconvenient, and The damage of the nozzle is not only difficult to be found, but more importantly, it destroys the internal water mist structure of the dust collector and greatly reduces the dust removal rate, so it needs to be checked regularly, which is troublesome to use

The water storage type dust collector uses the water tank to remove dust from the exhaust gas, but the water inside the water tank must be replaced and cleaned regularly. The small water tank has a high replacement frequency, which affects the efficiency. The large water tank occupies a larger area and costs more.

Moreover, the water tank is inside the dust collector, so it is not very convenient to clean the impurities

Regardless of the spray type or the water storage type, the biggest disadvantage is that the contact time between dust gas and water is not very long, and the dust removal rate is not very high.

Images