"In fact, if you look at the winters in Beijing in recent years, you can hardly see the smog. Most of them are blue sky like today. " Before the official interview, Wang Jinxing, deputy secretary-general of the China Construction Machinery Industry Association, dropped this sentence to the reporter, surprisingly well-suited to the interview. On December 28,2020, the Ministry of Ecology and environment officially approved and issued the technical requirements for emission control of pollutants from non-road Diesel Mobile Machinery (release draft)(hereinafter referred to as "the fourth country") , the fines are unprecedented. Many end users expressed unprecedented confusion and concern about whether the price of the equipment would rise, what to do with the old equipment, and whether the cost of repairing and maintaining the equipment would increase... 2021, the four-stage emission standard (Construction Machinery Industry) seminar organized by China Construction Machinery Industry Association was held in Wuxi. Leaders and experts from China Construction Machinery Industry Association, China Internal Combustion Engine Industry Association, Ministry of Ecology and environment, Jinan automobile testing center, National Construction Machinery Quality Supervision and testing center, and representatives from domestic and foreign engine and engine enterprises through lively keynote speeches, to enable the participating construction machinery and engine enterprises to have a clearer and in-depth understanding of the four-stage emission standard, "actively assume social responsibility for 'win the Blue Sky Defense War' , to achieve the transformation and upgrading of the construction machinery industry, from big to strong to make new contributions" has become the consensus of the industry. In order to let more end-users understand the relevant background and content of the "fourth country" emissions, the first construction machinery network interviewed Wang Jinxing, deputy secretary-general of the China Construction Machinery Industry Association, to answer the most concerned questions of end-users. D1CM: What will be the specific impact of the "fourth country" on end-users? Venus Wang: For end-users, of course, the corresponding increase in work and costs. The first is the regular maintenance of the post-processing units (DPF and SCR) , which maximizes the operational and maintenance effectiveness of the post-processing units. This is very important! Second, the use of fuel oil and other auxiliary materials, the need for more formal. Equipment equipped with SCR device, users also need to add urea, such as the addition of the auxiliary materials must also meet the "country four" corresponding requirements. The equipment will have a system of test feedback, if the quality of oil and auxiliary materials is not up to standard, especially the sulfur content, the impact on the engine and the post-processing equipment is very large, it may directly lead to the power shortage of equipment, and even cause damage. D1CM: The market is in use of the "country two" , "country three" number of equipment, and some even "country one" is still in use, these equipment elimination mechanism is what? Is it a technological upgrade, or is it something to do with? Wang Jinxing: the country does not have a system of standards and regulations, clear construction machinery products out of the mechanism, but the requirements of environmental protection around the gradual increase. For example, the National Standard 36886 was issued in 2018, setting limits on the smoke emissions of used equipment in use, but as early as 2013, Beijing started smoke tests, which impose strict requirements on equipment emissions. In 2019, more than 300 prefecture-level cities (including those directly under the central government) across the country began gradually setting up low-emission zones, according to the "Action Plan for tackling key problems in pollution control" of the 11 ministries and commissions under the State Council. Personally, I think this is a more effective approach. Construction Machinery of the "national first" emission equipment, about 2009-2010 began to appear, has been in use for more than 10 years now. For these old "national one" equipment, Shanghai has adopted the "two-legged walking" restriction system: First, the "national one" emission equipment is mandated not to be allowed to enter the low-emission zone; second, at the same time, the national standard 36886 regulation is adopted, the smoke level of some old construction machinery and equipment, especially those with high emission, shall be tested, and the equipment with high pollution emission shall be prohibited from entering the low emission areas. The treatment of obsolete equipment varies according to the added value of the product itself and the different emission stages to which it belongs. "COUNTRY 3" equipment power in 37 kw or more than 56 kw, most will be equipped with electronic fuel injection engine, technology transformation is relatively easy, you can try to install DPF or SCR, can effectively control the emission of particles, prevent "black smoke" from happening. As for the treatment of "national second" and "national first" equipment, it is also best to deal with the situation: large-tonnage excavators, pavers and planers and other high value-added, high-cost equipment, you can choose to install post-treatment equipment; However, "national 1" (especially if the emissions have already far exceeded the emission limits) and "national 2" equipment with low added value and low purchase cost are already relatively low in residual value, so it is not recommended to install additional reprocessing units, it goes straight to the remanufacturing stage or scrap. D1CM: Some users believe that the emission standards of the product (such as equipped with an EFI engine) , the later maintenance costs will be correspondingly increased a lot, this is also one of the reasons why many end-users still choose to use "country two" and "country three" devices, which they feel is more economical. How do you think to better solve the contradiction between technology upgrade and cost increase? Wang Jinxing: This problem is actually very simple, a good calculation of the bill came out. The cost of installing a one hundred thousand or even one million DPF , SCR and other processing equipment is about 20,000 to 40,000 yuan. With the addition of maintenance, the average cost is about 800 to 1,500 yuan twice a year, and the additional cost for more than one year is three thousand yuan, is a fraction of the value of the device itself. But the benefits of keeping the engine running efficiently and reducing the frequency of repairs are far greater than those costs. D1CM: for Construction in big cities such as Beijing, Guangzhou and Shenzhen, the supervision is relatively strong, so the implementation of the standards should be relatively smooth. How should many mountainous areas and the vast rural areas be supervised? Will enforcement take place if emissions standards are not met, or what are the specific response measures? Wang Jinxing: The big cities such as Shanghai, Guangzhou and Shenzhen do attach great importance to the development of the ecological environment. According to the National Standard 36886, the regulation of emissions from both motor vehicles and non-road mobile machinery is getting stronger and stronger. One of the most important reasons why low-emission zones were first set up in prefecture-level cities is that the diffusion conditions of gases emitted in urban areas are poor and slow, whereas in the vast rural area of Hoe San Estate, the diffusion conditions are relatively better. Of course, there are also the costs of enforcement. National Standard 36886 is a mandatory standard, not meeting the emission standards in addition to a fine of 5,000 yuan, but also forced to retrofit equipment. Therefore, in places such as Hoe San Estate, where enforcement is more difficult, first of all, we need to promote the concept of "environmental protection" , so that end-users understand and gradually accept the concept of "environmental protection" , and understand that the ultimate goal of environmental protection is not only to improve the environment, for them, it is also more beneficial, the equipment is more efficient, but for them to "save money. ". Therefore, not only professional media, industry associations, including the local ecological environment related departments, it is necessary to increase publicity. GB 36886 now has seven group standards (CCMA) for professional testing methods, including excavators, loaders, bulldozers, road rollers, mining dumpers, internal combustion forklifts and lifting platforms. The association has also established a training department, be prepared to put these standards into the corresponding promotional video, promotion and publicity. Although the scope of our publicity is relatively limited, but the use of new media, television and other channels, especially the joint departments of the ecological environment around the professional media, there is still much to be done.
