How to remove the haze of China's construction machinery industry

Since January 9th, the smog that has enveloped the central and eastern regions of our country has finally gone. Although this invisible crisis did not cause much loss, it left a haze in the hearts of the Chinese people. This is nature's protest against China's long-term and extensive development. The haze that lasted for a week made us feel the fragility of the automatic climate adjustment capability, and it also made us clearly aware of the seriousness of air pollution in our country. As a practitioner of construction machinery, we have an indirect responsibility for this crisis.

　　 When it comes to energy saving and emission reduction, people tend to focus on automobiles and ignore construction machinery products. It is true that automobiles are the most widely used product in the internal combustion engine industry and deserve attention. However, the environmental hazards caused by the negligence of supervision of construction machinery products ranked only after automobiles require public attention urgently. Someone vividly describes the energy-saving achievements of the automobile industry and the construction machinery industry. Compared with the efforts and achievements of passenger cars to reduce carbon emissions, construction machinery seems to be climbing a soft sand hill under the scorching sun. We learned from Mr. Qi Jun, President of the China Construction Machinery Industry Association that in the Chinese market, construction machinery and transport vehicles are still implementing the second-stage limit equivalent to the European No. 2 emission standard. The United States has already implemented Tier4 transitional emission standards at the beginning of this year; the European Union is implementing the IIIB emission standards, and Tier4 emission standards were implemented in 2014. From the data point of view, compared with the United States, my country's energy utilization rate is only 26.9% of theirs. Compared with Japan, our energy utilization rate is even lower. Another investigation has pushed China's second-hand construction machinery products to the forefront of environmental killers. China's construction machinery products can never retire. Due to the lack of a reasonable launch mechanism, construction machinery products that have been in use for 10, 20 years or even longer can be used in China. As we all know, the engine is assembled when the new machine is off the assembly line. With the extension of the product's construction period, the engine's carbon dioxide emissions will increase. According to incomplete statistics, second-hand construction machinery products with carbon dioxide emissions in the domestic market currently account for more than 40% of the total construction machinery products.

　　 Those who are good at grasping trends can easily see that a green trend has spread in the construction machinery industry. Industry giants such as Sany Heavy Industry and Zoomlion have begun to develop energy-saving products one after another, and the industry's energy-saving performance is also constantly making breakthroughs. In the field of excavators. The new GC228LC-8 oil hybrid excavator of Shan Reconstruction Machinery uses hydraulic energy storage technology for energy recovery, and serves as an auxiliary power source and the main power source to provide energy to the load. This technology is compared with traditional power excavators. The energy saving effect reaches 10%~15%. The SWE230S excavator launched by Sunward Intelligent introduces a parallel hybrid power system. The test results show that under typical excavation conditions, fuel consumption is reduced by 24.7%, harmful gas emissions are reduced by 32%, and rotating noise is reduced by nearly 40%. In the field of loaders, Shandong Lingong's pioneering effort to increase the fuel-saving capacity of its products from 12% to 20% has triggered a storm of energy conservation in the loader industry. According to relevant statistics, these new energy-saving products have been welcomed by users to varying degrees. While worthy of recognition, it is worrying. It is not difficult to see that domestic companies currently only focus on a single product in the development of energy conservation and emission reduction, and do not have a clear strategy. Domestic construction machinery companies do not have a deep understanding of the future competition in the leading green and energy-saving industries, and they do not pay enough attention to it. Looking at the global market, the current low energy consumption and low displacement have also become an insight barrier for domestic construction machinery products to be exported to Europe and the United States. Therefore, it is imperative for construction machinery companies to advocate green strategies.

　　 For the construction machinery industry, haze is not so much a crisis as it is a signal. A signal of the development direction of the industry. The smog has aroused the public's awareness of energy conservation and emission reduction, and I believe it has also aroused the country's determination to control air pollution. It is believed that during the 12th Five-Year Plan period, energy conservation, emission reduction, and environmental protection will become a new trend in the development of the construction machinery industry.