Straw is not burned to turn waste into treasure

? The ecological, economic and social benefits of biomass fuel technology are very remarkable.

On one side, the chimney of the barbecue was so black that it was choking and choking; on the other side, the chimney could not see the gas emission, and the air was fresh and pleasant.

A few days ago, in the flue-cured tobacco production base of Shafang Town, Mangshi City, Yunnan Province, the author saw a sharp contrast between the emission scenes of two flue-cured tobacco rooms.

"the fuel and technology used in the two baking houses are different." Zhao Mingkuang, secretary of the party committee of Chaofang Town, said that flue-cured tobacco is an important pillar industry in the area, but the traditional process of burning wood and coal has been used in flue-cured tobacco production, which not only destroys trees and wastes precious energy, but also emits a large amount of harmful gases and pollutes green mountains and green waters.

"Last year, we introduced a new type of intelligent biomass fuel tobacco oven and carried out smokeless roasting demonstration work. The effect of environmental protection was very obvious. It not only improved the working environment of the barn workers, but also increased the income of tobacco farmers. What is more important is to save coal resources and protect the environment."

Zhao Mingkai said that the new intelligent biomass fuel flue-cured tobacco stove is a biomass energy burner and supporting facilities independently developed by Yunnan Huayi Science and Technology Co., Ltd., this achievement uses bagasse, tobacco, straw and other agricultural and forestry wastes to be processed into biomass pellet fuel instead of coal as fuel, the combustion efficiency is as high as 90%, and harmful gases such as soot, sulfur and hydrogen dioxide in combustion tail gas basically achieve zero emission. At present, it has obtained a number of national patent technologies, among which the "anti-coking slag technology" is very advanced, which breaks through the bottleneck problems such as tar residue from biomass fuel blocking the furnace, tail gas residue polluting the environment and equipment corrosion. Compared with the traditional coal-fired intensive roasting house, the automatic biomass energy intensive roasting house can increase the heat utilization rate by 129%, reduce the baking cost by more than 43%, and reduce the comprehensive index of environmental pollution by more than 70%. The ecological, economic and social benefits are very significant.

? Large-scale popularization can reduce the harm of haze

Shen Xingliu, a technician with 30 years of experience in flue-cured tobacco, said that the use of the new environmentally friendly oven no longer smokes and burns, and the work done by five people is now enough for one person. "the rate of first-grade products has been greatly improved."

It is understood that after the overall transformation of the "biomass granule" new energy equipment, Chaofang Town has so far completed the tobacco leaf baking 480 kiln, the first tobacco leaf baking without failure history, greatly improved the tobacco curing quality, tobacco farmers' income increased by 20%, tobacco leaf curing qualified rate increased by more than 10%, while reducing labor costs by more than 80%.

This new environmental protection product has been recognized and praised by all sides locally, but he Deyi, chairman of Huayi Company, said that in the process of promoting the new product, they also encountered difficulties in terms of funds and subsidies. A person in charge of the local science and technology bureau believes that the technology of this environmental protection product is mature and the environmental protection effect is remarkable. If there is a tilt in the biomass energy subsidy policy, it is believed that it will be promoted on a large scale more quickly.

At present, China produces more than 1 billion tons of agricultural and forestry waste every year, and its comprehensive utilization rate is less than 50%, and almost half of it is burned in the field, which not only wastes resources but also pollutes the atmospheric environment. He Deyi calculated an environmental protection account: after the traditional barbecue was converted to biomass fuel, each barbecue could save 8400 kilograms of coal per season, the sulfur dioxide in the tail gas decreased by more than 90 times, and CO and NO2 decreased by more than 20 times. "this clean and environmental protection technology can also be widely used in traditional Chinese medicine, agricultural products baking, greenhouse heating and other fields. If popularized in a large area, it can not only save a lot of coal and wood resources, but also effectively reduce the harm of haze caused by straw burning." Zuo Changrui