In the year 2000, the issue of environmental protection has become a global issue of common concern. Especially with the melting of glaciers and the greenhouse effect, it is even more so that humans have to pay attention to the protection of the environment while seeking development. The development of the country and society is inseparable from the efforts of all walks of life. Therefore, the strength of the industry’s awareness of environmental protection is directly related to the protection or destruction of the common homeland of mankind—earth.
In 1973, China issued the "Triple Waste" emission standard for industrial use, which is China's first environmental protection standard. In 2008, when we reviewed China's environmental protection standards, we found that it exceeded 1,100 items and formed a series of national environmental protection standards such as water, gas, sound, and solid waste.
The wire and cable industry is widely used in various fields as the “nervous†and “blood†of the national economy. Therefore, the environmental protection of wire and cable products is highly concerned by the government and users. Especially in recent years, the demand for environmental protection of cable products has increased even more. Wire and cable manufacturers have also put forward higher requirements and challenges. The production of environment-friendly cables has become a general trend.
However, due to the large amount of lead-containing heat stabilizers used in the production process of PVC cables in China, the PVC cables conceal a large amount of heavy metals. Once the pollution occurs, the consequences are disastrous. In this regard, experts in the industry have also been appealing for these years, hoping to arouse the attention of the country and introduce corresponding policies that not only protect the environment, but also match international normative standards, and also contribute to the development of enterprises and industries. Great benefit.
In particular, the use of lead salts as heat stabilizers and lead generation problems are urgently needed. According to statistics, the use of lead and salt amounts to tens of thousands of tons per year in the country.
The PVC wire and cable industry is a labor-intensive enterprise. Most manufacturers have poor production equipment, large dust production lines, and smoke lingering in the production workshop. Simple protective measures make it difficult to prevent lead dust from entering the human body, and long-term exposure to lead dust, lungs and respiratory system. Lead levels will continue to increase, eventually leading to lead poisoning. The unorganized discharge of lead dust during the production process resulted in the scattering of a large amount of lead-containing raw material dust around the floor of the production plant, equipment, and the plant area. This pollution effect was amplified by rain erosion and wind propagation, causing heavy metal pollution in the surrounding environment of the plant. .
Although the lead salts have excellent thermal stability, they are highly toxic. Not long ago, the cable industry suffered a major loss of lead and salt stabilizers. In 2011, there have been a number of vicious incidents in China that have caused multiple groups of health hazards and large environmental pollution accidents due to heavy metal pollution.
In July 2011, the Hangzhou Environmental Protection Bureau Solid Waste Center and the Hangzhou Environmental Protection Association conducted a special survey on the use of lead salt heat stabilizers and lead pollution in two cable manufacturers in Hangzhou. The investigation showed that the lead dust content of several workshops of Hangzhou Gaoxin Insulation Materials Co., Ltd. using lead and salt stabilizer exceeded the standard, and the lead dust of the PVC compounding workshop exceeded the standard by as much as 16 times. In the work environment where lead dust is excessively high, the nature of the work is labor-intensive and it is very prone to large-scale blood poisoning.
The “China Clinical Research†once conducted a special investigation and analysis on the occupational health status of a wire and cable factory worker: According to the "Technical Regulations on Occupational Disease Health Monitoring", 130 occupational health checkups were carried out for the victimized worker, and the result was 23.1%. Workers are hypertensive; 60.0% of workers have reduced red blood cells. Workers have different degrees of headaches, dizziness, fatigue, fatigue, dreaminess, hair loss, blurred vision, chest tightness, cough, and cough. The conclusion is: The health status of workers who are harmed by this wire and cable plant is not optimistic.
In fact, the tragedy that has occurred in Hangzhou wire and cable manufacturing companies is not a single case. Many wire and cable manufacturers across the country are more or less or large or small. This has not been exposed, but only local There is still a lack of attention to pollution from the supervision department and production companies, and workers have a certain sense of self-protection during the production process.
Once the author came to a wire and cable manufacturing company to visit, found that in the most serious lead pollution between the ingredients, workers generally wear only one protective mask, in the ordinary production workshop, employees do not even wear masks. When I was chatting with a person in charge of the company, the author asked related questions, but the person in charge seemed quite relaxed. He told the author that lead salt stabilizers accounted for only a small part of the entire production materials and were equivalent to cooking. MSG does not cause lead poisoning at all. Although the industry requires employees to participate in occupational disease training and occupational health examinations, the company has never organized employees to participate.
Of course, in addition to companies with weak security awareness, there are still other companies that “know that there are tigers and tigers tend to favor tigersâ€. The author also visited another small wire and cable manufacturing company. When asked about the hazards of lead stabilizers, the person in charge of the company replied that, in fact, we know that lead stabilizers are polluted, although alternative environmental protection materials are only Slightly more expensive, but if we alone use our company to give up, it will certainly affect the business. Obviously, the answer of the person-in-charge of the company can represent the opinions of many cable companies. There is indeed a ridiculous problem in the industry.
In the past, it was unwilling to substitute lead-salt with environmentally friendly materials because of the high price of environmental protection materials. Nowadays, the price of environmentally friendly materials is similar to that of lead and salt. Why is it unwilling to choose environmentally friendly alternatives at this time? The main reason is that lead pollution is often caused by long-term, and the company lacks the necessary understanding of its harm, and long-term production habits make companies unwilling to change and bear the risk of modifying the production formula.
At present, the wire and cable industry is highly competitive and the profit rate is as low as 3%. Many wire and cable manufacturers across the country choose to stop production or even be forced to close down, and those struggling cable companies are also at risk. If you want to get rid of the low-end competition of domestic cables, The search for greater outlets and markets has forced domestic cable manufacturers to first produce environmentally friendly cable products. European and American countries have long forbid the use of lead-containing additives in the plastics industry. Lead is also strictly prohibited in its product inspection standards. If we do not change this situation, our country's cable industry is not competitive at all internationally. At present, various lead-free environmental stabilizers have long been out of the market in the country, and they are quite mature in terms of technical application. There are no differences between the performance indicators of the products and lead salts.
Obviously, whether it is from the perspective of the enterprise or the industry, or from the perspective of social safety and health, eliminating lead pollution is already a matter of hope. In the increasingly frequent “blood lead†incident, companies should avoid becoming victims. Once a lead poisoning incident erupts, it may cause serious impact in the industry. The government should take precautions and actively guide the wire and cable industry to follow the environmental protection line. It thoroughly eliminates the use of lead-containing heat stabilizers in cable companies from the source, and enforces the “prohibition of lead regulations†in the cable industry to avoid lead. An outbreak of pollution incidents.
All in all, the pollution problem is a common problem in the wire and cable industry and is currently the world’s most concerned issue. Today, as the environmental contradictions become more and more prominent, wire and cable must be actively transformed, and new materials should be used instead of lead and lead in order to produce cable products that meet the needs of construction projects. In addition, the environmental protection standards should also be continuously upgraded and improved, effectively avoiding the production companies from straying and even "derailing."
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