"In fact, you can see the smog in Beijing in the past few years. Most of them are blue sky like today." Before the official interview, Wang Jinxing, deputy secretary general of the China Construction Machinery Industry Association, threw this sentence to the reporter. Unexpectedly, it fits specifically with the interview content.
"Emerging after every call", on December 28, 2020, the Ministry of Ecology and Environment formally approved the release of the "Technical Requirements for the Control of Pollutant Emissions from Non-road Diesel Mobile Machinery (Release Draft)" (hereinafter referred to as "National Fourth"), which is of great strength Large, wide-ranging, and strict in fines are unprecedented. Many end users have expressed unprecedented confusion and worry about whether the equipment will increase in price, how to deal with the original old equipment, and whether the maintenance cost of the equipment will increase...
On March 18, 2021, the non-road mobile machinery four-phase emission standard (construction machinery industry) exchange seminar hosted by China Construction Machinery Industry Association was held in Wuxi
On March 18, 2021, the site of the exchange seminar on the fourth-stage emission standards for non-road mobile machinery (construction machinery industry)
On March 18, 2021, the non-road mobile machinery four-stage emission standards (construction machinery industry) exchange seminar hosted by China Construction Machinery Industry Association was grandly held in Wuxi. The relevant leaders and experts of China Construction Machinery Industry Association, China Internal Combustion Engine Industry Association, Ministry of Ecology and Environment, Jinan Automobile Inspection Center, National Construction Machinery Quality Supervision and Inspection Center, and representatives of domestic and foreign main engines and engine companies passed vivid keynote speeches to make the participating construction machinery The main engine and engine companies have a clearer and in-depth understanding of the four-stage emission standards, "actively assume social responsibilities, and make new contributions to the transformation and upgrading of the construction machinery industry to'win the blue sky defense battle'" Become an industry consensus.
In order to let more end users understand the relevant background and content of the "National IV" emissions, First Construction Machinery Net interviewed Wang Jinxing, deputy secretary general of China Construction Machinery Industry Association, to answer the most concerned questions of end users.
(Part 1) Those things that end users are concerned about in "National Fourth"
D1CM: What are the specific impacts of "National IV" on end users?
Wang Jinxing:
For end users, of course need to increase the corresponding work and expenses.
The first is the regular maintenance of the post-processing device (DPF and SCR), which guarantees the work efficiency of the post-processing device to the greatest extent from the operation and maintenance level. this point is very important!
Second, the fuel and other auxiliary materials used need to be more standardized. For equipment equipped with SCR devices, users also need to add urea, etc., and these added auxiliary materials must also meet the corresponding requirements of the "National Fourth". The equipment will have a test feedback system. If the quality of oil and auxiliary materials does not meet the standard, especially if the sulfur content exceeds the standard, the impact on the engine and after-treatment devices will be very large, which may directly lead to insufficient power of the equipment, or even damage.
D1CM: There are still a lot of "National 2" and "National 3" equipment in use on the market, and some even "National 1" are still in use. What is the elimination mechanism of these equipment? Is it through technological upgrading or should How to deal with it?
Wang Jinxing:
The country currently does not have a systematic standard and regulation to clarify the elimination mechanism of construction machinery products, but the requirements of environmental protection in various places are gradually increasing. For example: In 2018, the national standard 36886 was issued, which stipulated the smoke emission limit of the second-hand equipment in use; but in fact, as early as 2013, Beijing had already started the smoke test, which has strict requirements on the emission of equipment. In 2019, in accordance with the requirements of the “Pollution Control Action Plan” of the 11 ministries and commissions of the State Council, more than 300 prefecture-level cities (including prefecture-level districts of municipalities directly under the Central Government) across the country began to gradually establish low-emission zones. I personally think that this is a more effective method.
The "National One" emission equipment for construction machinery probably began to appear around 2009-2010, and has been in use for more than 10 years. For these old "National One" equipment, Shanghai adopted the "walking on two legs" restriction method: First, it is mandatory that the "National One" equipment is not allowed to enter the low-emission zone; second, the national standard 36886 is adopted at the same time. Regulations carry out smoke tests on old, especially high-emission construction machinery and equipment, and prohibit high-polluting equipment from entering the low-emission zone.
When disposing of old equipment, measures are also different for the added value of the product itself and the different emission stages it belongs to. Most of the "National III" equipment with power of 37kW or more than 56kW will be equipped with EFI engines. The technical transformation is relatively easy. You can try to install DPF or SCR, which can effectively control particle emissions and prevent "black smoke". It happened.
Regarding the treatment of "National 2" and "National 1" equipment, it is best to decide on a case-by-case basis: large-tonnage excavators, pavers and milling machines and other high value-added and high-cost equipment can be installed after treatment. Equipment; and "National One" (especially the emission has far exceeded the emission limit) and the "National Two" equipment with lower added value and lower purchase cost, the residual value of itself is already relatively low, and it is not recommended to install it Processing equipment, but directly transferred to the remanufacturing link or scrapped.
D1CM: Some users believe that products that meet emission standards (such as equipped with electronic injection engines) will have a corresponding increase in maintenance costs in the later period. This is also why many end users still choose to use "National II" and "National III" equipment One of the reasons is that they think it saves money. Do you think how to better solve the contradiction between technology upgrade and cost increase?
Wang Jinxing:
This question is actually very simple, and it comes out after doing a good job of accounting. For a device of hundreds of thousands or even millions, the cost of installing DPF, SCR and other processing equipment is about 20,000 to 40,000 yuan; plus maintenance, the average is calculated twice a year, and each time is about 800 to 1,500 yuan. , The increased cost for more than a year is two to three thousand yuan, which is insignificant compared with the value of the equipment itself. But this can ensure the effective running time of the engine and reduce the frequency of maintenance. The return is actually far more than these investments.
D1CM: For the construction in large cities such as Beijing, Shanghai, Guangzhou and Shenzhen, the supervision is relatively strong, so the implementation of the standards should be relatively smooth. How to supervise many mountainous areas and vast rural areas? If the emission standards are not met, will they be enforced, or specific What are the response measures?
Wang Jinxing:
Big cities such as Beijing, Shanghai, Guangzhou and Shenzhen really attach great importance to the development of the ecological environment. According to the national standard 36886, both the emission of automobiles and non-road mobile machinery are increasingly regulated. One of the most important reasons for establishing low-emission zones in prefecture-level cities is that the gas emitted in urban areas has poor diffusion conditions and slow speed, while in vast rural areas and mountainous areas, diffusion conditions are relatively better.
Of course, this also involves the issue of law enforcement costs. National standard 36886 is a compulsory standard. In addition to a fine of 5,000 yuan for failure to meet the emission standard, it is also mandatory to modify the equipment. Therefore, in rural and mountainous areas where law enforcement is more difficult, we must first publicize and promote, let end users understand and gradually accept the concept of “environmental protection”, and let them understand the ultimate goal of environmental protection. In terms of it, it is also more advantageous. The equipment is more efficient, but it "saves money" for them. Therefore, not only professional media, industry associations, but also local ecological environment related departments, it is necessary to increase publicity.
The national standard 36886 now has 7 professional test method group standards (CCMA), including excavators, loaders, bulldozers, road rollers, mining dump trucks, internal combustion forklifts, and lifting work platforms. The association has also established a training department to prepare These standards are produced into corresponding promotional videos for promotion and publicity. Although our scope of publicity is relatively limited, there is still much we can do by using multiple channels such as new media and television media, especially by uniting with local ecological environment departments and professional media.
