A few years ago, if you asked where the Shanxi Taihua Group was, somebody would tell you: “Where the taste is most devious, where the chimney smokes the darkest and the yellowest, where is too much.” But now people I can't see black smoke.
“Green is a rule. Chemical companies are by no means synonymous with pollution.” The words of Di Chongyang, chairman of the Taihua Group and secretary of the Party Committee, expressed the heartfelt wishes of the 20,000 employees of Taihua.
In recent years, Taihua Group has invested 221 million yuan to complete 30 environmental protection projects, environmental protection investment accounted for one-third of technical reform funds, and decisively phased out 18 products and devices with small production scale and large pollution. . For more than four years, the economic efficiency of Taihua has tripled and the total amount of pollutants has dropped by 51%.
Remove two mountains Taihua used to have “two mountains”: one is the slag hill that was built up from the production of waste slag for more than 40 years, and the other is the limestone slag mountain that has been formed for more than 10 years. In the sun and the sun, the two mountains are always scumming, smelly and pollute the surrounding environment. Now, after the "magic hand" of the Taihua people, the two mountains were removed and turned into waste.
The three fluidized-bed boilers in the factory now burn the slag of this slag mountain. Two-thirds of the waste residue, mixed with a little more coal, could heat up to 4,500 kcal/ton. From 2005, Taihua Group produced synthetic ammonia without spending money to buy electricity, and all six small boilers with serious pollution were also removed. With this alone, Taihua Synthetic Ammonia Branch can save 50 million yuan annually. At this point, the heat and power cogeneration model of Taihua Group was finally formed.
Later, the change of limestone slag and mountains became a clinker for producing excellent Portland cement. In August 2006, Shanxi Jintou Litang Environmental Protection Building Material Co., Ltd. produced an annual output of 300,000 tons of Portland cement clinker production line in Taihua, which not only solved the management problem of calcium carbide waste residue discharge, but also produced 15 million yuan per year. The economic benefits of yuan.
Elimination of Two Shares Yantai Chemical Group has invested 26 million yuan in recent years, and built a comprehensive utilization device for waste heat recovery of synthetic ammonia gas generating gas. It recovers the combustible gas in the intermittent gas blown gas, not only eliminating the black gas from synthetic ammonia. "Smoke", and can produce more than 50 tons of steam per hour, to achieve an annual increase of 15 million yuan. Taihua Co., Ltd. Chlor-alkali Branch Company adopts molecular sieve pressure swing adsorption technology to greatly reduce the concentration of vinyl chloride in the exhaust gas of vinyl chloride fractionation, which is lower than the national environmental discharge standard and generates an annual benefit of 5.5 million yuan, reaching the highest level in the domestic PVC production industry. His own proprietary technology.
In Taihua, not only black smoke has become history, but also the strong yellow smoke of the past has long since ceased. The pungent smell has also disappeared. Through two transformations, the yellow smoke has been absorbed by the absorption tower and converted into sodium sulfite and sodium nitrate, which has met the national requirements for emission standards.
Reuse of Three Waters Chemicals are high water consumption industries. In the past, industrial waste from Taihua Group was discharged directly to Weihe River after being treated with environmental protection. Now through environmental protection, Taihua Group has achieved 80% to 90% of the reuse of water. And Taihua Chlor-alkali Branch and Coking Plant have achieved zero discharge of industrial waste water. In 2008, Synthetic Ammonia Branch will also achieve zero discharge of industrial waste water. At the same time, they will further improve the “full recycling of sewage resources” and the “China Water Internal Energy Heating Project.” By the end of the “Eleventh Five-Year Plan” period, consumption and energy consumption of Taihua Group will be reduced by 30 compared with the end of the “10th Five-Year Plan” period. %.

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