Preliminary effect of industrial loose coal treatment

In the whole country, the reduction of bulk coal in 2018 is about 61 million tons, and the contribution of the reduction of bulk coal in the industrial field is 72%. Among them, 23,000 small industrial boilers will be eliminated and 7.2 million tons of bulk coal will be cut down. By eliminating backward production capacity, special control of industrial kilns and shutting down of "scattered pollution" enterprises, small kilns and furnaces in the building materials industry will be reduced. About 37 million tons of loose coal are burned, and the control of industrial loose coal continues to increase. Recently, the report of China's comprehensive control of loose coal 2019 (hereinafter referred to as "the report") gives the report of the management of loose coal in China.

The above-mentioned report, led by He Kebin, academician of the Chinese Academy of Engineering, has been compiled through on-the-spot investigation and systematic groping in conjunction with the China Coal Control Research Project Bulk Coal Governance Subgroup (hereinafter referred to as the "Subgroup"), China Energy Conservation Association and other institutions. It is not difficult to see that industrial bulk coal ranks first in terms of reducing quantity, controlling contribution, pollutant discharge and space to be reduced. As the "main battlefield" of governance, industrial loose coal deserves attention.

"The delicious meat basically eats almost the same, and the rest is mostly hard bones"

The consumption of bulk coal in China mainly concentrates in the civil and industrial fields, the latter being used in small coal-fired boilers and kilns, involving traditional industries such as cement, bricks and tiles, ceramics and so on. Due to relatively backward production capacity, a wide range of enterprises, industrial loose coal pollution emissions, regulatory difficulties.

According to the "Three-year Action Plan for Winning the Blue Sky Defense War" issued by the State Council, the comprehensive improvement work was centralized in 2017. Reporters learned that only in Beijing, Tianjin and Hebei and surrounding areas, the actual elimination of small coal-fired boilers reached more than 100,000 units. On the basis, the report shows that the area covered by the treatment has been further expanded. In addition to Beijing, Tianjin, Hebei and surrounding areas, Fenwei Plain and other key areas, other provinces and municipalities have also introduced implementation plans and revised local boiler air pollutant emission standards. In 2018, a total of 23,000 small coal-fired boilers were phased out nationwide. The corresponding emission reductions of particulate matter, sulfur dioxide and nitrogen oxides were about 172,000 tons, 110,000 tons and 22,000 tons, respectively.

Take industry as unit, industrial small kiln governance proceeds synchronously. For example, more than 10,000 enterprises were phased out last year in a large and wide range of brick and tile industries. The research group roughly estimates that in this subdivision area alone, about 30.3 million tons of coal gangue and low-quality bulk coal will be reduced. "Brick and tile industry governance long-term chaos, is our long-standing problem. Driven by the control of bulk coal, the industry has eliminated a large number of backward production capacity and gradually optimized the industrial structure. From this year's survey, the price of products has rebounded, and the efficiency of enterprises has increased, which in turn provides the possibility for greater governance. Tian Yanping, Vice President of China Brick and Tile Industry Association, sighed with emotion. At the same time, Tian Yanping said that this year and next two years have entered a critical period of governance, and the task is still heavy. "Previously, the delicious meat was almost eaten, leaving behind a lot of hard bones that were difficult to gnaw. This means that existing measures such as elimination cannot be simply continued.

Also see the "difficulties", there is Gao Jiajiajia, Ph.D., Department of Air Pollution Control, Beijing Academy of Labor Protection Sciences. "With the gradual elimination of boilers with less than 35 steam tons, one of the remaining key tasks is the energy-saving and ultra-low emission transformation of boilers with more than 65 steam tons. There are differences between industrial enterprises and boilers used in power plants. The transformation should not copy the power plant model, but formulate a technical route that is in line with its own characteristics. But at present, there is no clear statement about it. Behind the problems, the report concludes that the coordination and coordination of governance work still needs to be strengthened. "The complexity of bulk coal management determines the necessity of cross-sectoral, cross-sectoral, even cross-regional. Industrial bulk coal management mainly involves the Ministry of Industry and Information Technology, the Ministry of Ecological Environment, the National Development and Reform Commission and other departments. Although the responsibilities of various departments are clear, due to the different starting points and points of view, they mainly focus on the tasks of their own departments, lack of overall planning in policy formulation and implementation, and lack of effective collaboration between departments. In the next stage, the reduction of bulk coal combustion in small kilns will be the main.

"From 2017 to 2018, the treatment of small kilns in civil bulk coal, industrial small boilers with less than 35 steam tons, and building materials industries will reduce about 126 million tons of bulk coal. Considering the difficulty of harnessing the deep water area, we can not relax our efforts. It is suggested that 45 million tons of loose coal should be reduced this year and another 30 million tons should be reduced by 2020. In this context, industrial loose coal will still be the main area of governance, and the next stage will be the reduction of small kiln loose coal combustion. How to advance the specific work of? The report suggests that for small coal-fired boilers, Beijing-Tianjin-Hebei and its surrounding areas, Fenwei Plain, the two key areas should focus on sustained efforts to thoroughly verify, thoroughly control and consolidate the results. In non-key areas, the control should follow up quickly to eliminate pollution transfer. "Small coal-fired boilers with 10 steam tons or less can be eliminated in an all-round way, and gradually penetrated into the built-up areas, and small coal-fired boilers with 20 steam tons or less can be eliminated."

For small industrial kilns, due to the large number of industries involved and scattered enterprises, the report recommends that we should focus on upgrading the backward capacity catalogue of related industries, improve the standard system of various industries with the times, speed up the elimination of backwardness and promote industrial upgrading. "Due to the differences in policies and different implementation efforts, some areas have not completely closed down measures, the resurgence of loose coal ash and other phenomena, and some industries have experienced backward production capacity, pollution emissions transfer. In the next step of governance, special attention should be paid to it."