subject: Guizhou Xingyi tobacco plant boiler FGD and transformation (Figure) - desulphurization and dust removal - filtration and separation industry [print this page] Guizhou Xingyi tobacco plant boiler FGD and transformation (Figure) - desulphurization and dust removal - filtration and separation industry
Guizhou Xingyi Tobacco Industry Co., Ltd. cigarette factory two SHL10 - 1.27--A boiler dust removal system were put into operation in 1991 and 1995 are using the XS type cyclone dust collector, due to long-run period, the two Taiwan cyclone not only lag behind the performance, but have different degrees wear, dust removal severely reduced, the indicators (dust emission, sulfur dioxide emissions, Ringelmann blackness, etc.) can not reach the national emission standards. There were no desulfurization equipment, increasing pollution, caused by the tobacco industry in Guizhou limited liability company leadership and the leadership of Xingyi cigarette factory attaches great importance to protecting the environment should be agreed that was the first to create business value on the second.
Approved by Guizhou Tobacco, Xingyi cigarette factory in precipitator original boiler used to transform the same time increase the desulfurization equipment, to minimize environmental pollution. Public bidding for the plant community, Jiangxi Jinshan Environmental Engineering Group Co., Ltd.? With multiple dust, dual-alkali desulfurization means winning. Xingyi cigarette factory and were entered into a winning side, "Engineering Contract", "Independent contract", "construction safety arrangements", works on September 18, 2008 the formal construction. Before the construction, Xingyi cigarette factory and construction organizations related technical side of the flue gas desulphurization and dust removal equipment operation are analyzed. The plant now in service is 10T / H of the furnace, the furnace is layer burning boilers, boiler thermal efficiency of low ash content of about 15%, coal 18% content, boiler mechanical incomplete combustion heat loss than Great, only continuous operation at full load conditions, the coal combustion can be fully, the resulting carbon black, coke fumes will be significantly reduced. Desulphurization and dust removal equipment is based on the boiler under normal operating conditions the design, as Xingyi Cigarette Factory production is low, less gas consumption, leading to intermittent boiler operation, most of the time pressure of the boiler is a fire burning boilers with coal when wind and very drum to start again, this time in the dust content in flue gas and carbon black smoke is 4-5 times the normal operation, so the chimney will produce the phenomenon of pan-black smoke to pollute the air, coupled with long years of boiler operation, two cyclone dust device performance not only backward, and had different degrees wear, dust removal seriously reduced. For the above, the construction side to take measures in three steps: first, the center of the desulfurization unit to add two spray tube, the flue gas to increase humidity. Although the carbon black and coal tar is insoluble in water, but by increasing gas humidity, condensation is conducive to carrying the increased dust fall into the bottom of the column discharge of carbon black and coal tar. Second, the lower part of the desulfurization tower overflow out of a DN125 pipe mouth, through the bottom of the column drainage pipe valve to adjust the liquid level, so that the lower part of the tower to maintain a certain level, when the smoke rushed into liquid along the center tube faces to achieve the purpose of water-soluble gas. Third, changes in boiler operation mode, before the blast in the boiler starts, start two circulating water pumps, this way, the boiler flue gas in the blast when the smoke concentration decreased pan, to be environmentally friendly.
In engineering construction, to ensure the quality, construction schedule and construction safety, Xingyi cigarette factory factory production management Division has organized relevant departments and project staff representatives, personally monitored, and construction and engineering sites so on a number of reasonable suggestions. For example, the continuous discharge of water (PH value 10-12) to re-take over the introduction of additional base pool, the desulfurization tower Caustic consumption from 70 kg per day dropped to 50 kilograms every day, thus saving operating costs. Comrade Deng Zhaoguo Production Management Division to ensure the running of the system to achieve the best effect of desulphurization and dust removal, yet alone one person got into the chimney tower, tower of pipeline maintenance, pipeline leaks to prevent water leakage. Dark tower and there were many years down the oil soot deposition, the temperature inside the chimney higher than the more than 10 degrees outside, the air dull, breathing difficulties, he overcame the difficulties of ordinary people can not overcome, in the chimney tower for almost three hours. When he drilled out from the tower the moment, my colleagues almost did not recognize him, saw his face and his head full of black smoke gray, only a pair of eyes were rolling in turn, her body was dyed gray chimney into a black, clothes have been perspiration. Colleagues to see him this look not help laughing, but the smile on their faces to stay only a few seconds then came to an end, because a few seconds of time on this, my colleagues from the hearts of comrades, however, respect for students on Deng Zhaoguo was he that does not Pazang, fearless tired of love and devotion touched.
Through Xingyi cigarette factory and construction side and work closely with the boiler flue gas desulphurization and dust removal renovation project on February 26, 2009 completion. By test-run equipment in good application of the water cycle of the system principle, the desulfurization tower out of the wastewater is treated before recycling, significant savings in water resources. Multi-tube dust collector at the bottom of each day will produce 50-100 kg of tobacco foam, the foam can also recover tobacco mixed with coal, really achieve the energy saving effect. March 8, 2009, EPA Qianxinan Xingyi cigarette factory on the boiler emissions testing, the results show that emissions from coal-fired boiler desulphurization and dust removal dust concentration after the 163.9? / M3, sulfur dioxide, 441? / M3, to meet the "boiler air pollutant emission standard "(GB13271-2001) standard Type II District time limit requirements, meet the national emission standards for boilers.
