Heilongjiang province environmental protection department yesterday, said the province would cut coal use, promoting high quality coal, and will be in this year's new high quality coal 4.5 million tons, in order to speed up the solution due to the extensive use of lignite cause haze \"heart and lung of\" for the masses.
Heilongjiang province is one of the energy structure is given priority to with coal provinces. In the long winter heating period, coal-burning pollution haze weather was thought to be induced to produce one of the important reasons.
The environmental protection department said that lignite has the shortcoming of low calorific value, high pollutant discharge. In the use of lignite mainly comes from outside the province of heilongjiang province, usage of nearly 30 million tons, mainly used for large coal-fired power plants.
Heilongjiang province environmental protection department statistics show that in 2013, only in this year, in heilongjiang province for small lignite combustion emissions of soot particle pollution reached about 120000 tons.
The reporter understands, at present the environmental protection department in heilongjiang province has advises the government, in Harbin, qiqihar, delimit the city of daqing, Hong Kong and the forbidden zone. The province will develop mixed burning lignite standards, to smoke, mixed burning lignite coal boiler technical renovation.
The environmental protection department, said the possible smog in the city, the environmental protection department will require companies to reduce the lignite blending ratio. In the heating period and adverse weather conditions, the environmental protection department will increase the inspection frequency, makes every effort to reduce the pollution of the low altitude.
It is understood that the Inner Mongolia autonomous region in recent years, we have often mentioned to produce the \"coal\" is a kind of brown coal, coal is relatively young in the geological, only a few hundred years to one thousand years of age, the main coal accumulation on the surface of the ground, and the coal production in our province is dozens or hundreds of deep, deep underground in hundreds of millions of years of age.
Last year, our province can look up to the environmental protection department to provide media, Harbin \"Mongolian coal usage\" of the year is 10 million tons, the reporter didn't look up to 20 million tons. The data is 2014, Harbin coal consumption of 38 million tons per year, Mongolian coal usage increases gradually in recent years, the proportion has reached a third.
Lignite, also known as wood coal (English: Lignite (coal), brown coal, wood, coal), is the lowest degree of coalification coal mining. A dark brown between peat and bituminous coal, matt lean coal. Chemical reactivity is strong, easy weathering in the air, not easy to store and transport, burns to the serious air pollution. But because of high quality coal is almost empty, lignite has become a major use of coal in our country
Because it is rich in volatile, so it is easy to burn and smoke. Profile can clearly see the trace of the original wood formed by gymnosperms (). Containing humic acid soluble in alkali. Carbon content 60% ~ 77%, density of about 1.1 to 1.2, the volatile component is greater than 40%. No glue layer thickness. No grey base high heat and humidity of about 23.0-27.2 million kilojoules/kg (5500-6500 kcal/kg). More brownish or brown-black, relative density 1.2 ~ 1.45.
Brown coal moisture (15-60%), high volatile component (> 40%), including free humic acid. Air easy weathering fracture, low ignition point (around 270 °). Store more than two months is prone to spontaneous combustion fire, stacking height should not be more than two meters.
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