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Venturi - Granite Film Dust in the Coke Oven

Chinese papers League finishing. Abstract: The working principle and process characteristics of dust control and collection efficiency, demonstration Venturi - Granite Film Dust process is suitable for Coke Oven Pushing on the application of dust. Keywords: Venturi; Film Dust; characteristics; working principle; removal efficiency; operation; control; effect Introduction oven emissions are the main pollutants produced in coking coal loading and Pushing the two processes, accounting for 60% of coke oven emissions of pollutants above. The traditional bar coke car, then coke and coke quenching device is open. Pushing a car when the coke from the coking chamber of coke introduced into the gate through the guide coke quenching car, the hot coke in the process dropped, cracked, and partially burned in air, producing a lot of smoke, dust. Coke oven coking process of toxic pollutants mainly exists as a carrier of dust, emissions of these pollutants into the atmosphere, to the production plant workers and nearby residents bring great harm to the business and adversely affect society. Liupanshui De existing four coke oven coke company, the design production capacity of 120 million tons, coking enterprises and dust are major polluters, in order to effectively control dust pollution, de 2006 1 # coke oven coke used in the Venturi - Granite Film Dust technology to test, practice shows that through the year, Venturi - Granite Film Dust process is suitable for Coke Oven Pushing on the application of dust. 1, Venturi - granite water film high-temperature dust removal technology focus by blocking dust collector car (hood) capture, by the dust collection fan diverted to the Front dry dust control, dust control in the high-temperature dry dust from the top into the Venturi tube, the initial dust, the lower part of the Venturi tube leads to the precipitator dust from the lower part of granite into the water film, according to the run on the bottom , the spray washing purification (ie secondary dust). After a large number of dust particles are washed into the quenching tank sediment, Tuochen flue gas after the fan lead to the chimney into the atmosphere. Dust the fan clutch hydraulic oil from the corner of a plate heat exchanger with cold water reverse cooling, cold water from the high slot with a single pump supplies; Venturi - granite water film dust spray washing water consumption quenching by the pool supplies vacuum suction,[link widoczny dla zalogowanych], washed together with the dust settling into the quenching tank. 2, venturi selection - the basis and necessity of granite Film Dust 2.1 to implement the state on the strengthen self-discipline, improve technology and equipment level, speed up technological innovation, and active use of appropriate technology, improve the production environment and increase economic efficiency of enterprises. 2.2 de coke oven set by the company site constraints,[link widoczny dla zalogowanych], the available space around the smaller dust removal facilities must be selected according to local conditions. 2.3 particulate pollutants in the flue gas has a variety of processors. Common are: mechanical dust collector, wet scrubber, filter dust collector,[link widoczny dla zalogowanych], electrostatic precipitator and so on. Film Dust technology commonly used in the incinerator, fertilizer manufacturing, lime kiln and foundry on the cupola of the dust. Venturi filter commonly used in iron, steel, paper and power boiler flue dust on dust. Venturi tube with water film will be combined and used in the 4.03m Dust Saddle -62 coke dust from coke oven, in the country is still first. The widely used pulse bag dust the ground station. Removal efficiency, but the investment was also high. Annual output of 30 million tons of coke in a coke oven whole, only dust project cost thousands of yuan. For enterprises, the pressure is great, and the post-production on bag demand. Many facilities, operation and maintenance costs are large, however, Venturi - granite water film dust project, not including the bar Coke vehicles (including cars blocking coke dust cover) is about 5.95 million, including investments in the same time, small footprint, construction and technology simple operation, little maintenance, less facilities, less investment in infrastructure, purify high efficiency favored by enterprises and many other advantages. Performance comparison of various filter see table 1. 2.4 In the investment, affordable, simple, technology is mature, reliable, clean and high efficiency factors, combined with coke dust features, consistent with national environmental management policy, but also to adapt to the enterprise's economic situation. Venturi ultimately determine the selection combined with the water film dust removal technology. 3, Venturi - Granite Construction water film dust Venturi - granite wet dust collector in the water film is a kind of dust, also known as washing dust collector, it is a kinds of use of water and dust gas contact with each other, accompanied by heat and mass transfer, after washing the dust and gas separation equipment. Venturi - granite, granite water film water film dust in the dust before the addition of the Venturi tube, are two-stage wet scrubbing devices. It mainly consists of the Venturi tube, the main water film dust tube, overflow tank, water and water blockade of gas into the area and the water film filter device composed of associate barrel. From the cylinder, the Venturi tube, the net smoke room, overflow tank,[link widoczny dla zalogowanych], hopper, at the top of all adopts tobacco granite lined the aisle.

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