It can be prepared by directly crushing natural calcite, limestone, chalk, shell, etc. by mechanical methods (using Raymond mill or other high-pressure mill). Because the sedimentation volume of heavy Calcium Carbonate is smaller than that of light calcium carbonate, it is called heavy calcium carbonate.
Heavy calcium carbonate is abbreviated as heavy calcium. It uses high-quality limestone as raw material and is processed into white powder by a lime mill. Its main component is CaCO3. Heavy calcium has the characteristics of high whiteness, good purity, soft hue and stable chemical composition. Heavy calcium is usually used as a filler. It is widely used in daily chemical industries such as artificial floor tiles, rubber, plastics, papermaking, coatings, paints, inks, cables, construction supplies, food, medicine, textiles, feed, toothpaste, etc. Increase the volume of products and reduce production costs. Used in rubber, it can increase the volume of the rubber, improve the processability of the rubber, play a semi-reinforcing or reinforcing role, and can adjust the hardness of the rubber.
Heavy Calcium Carbonate,Heavy Calcium Carbonate,Calcium Carbonate Heavy/Light Powder,CaCo3 Henan Shunbang Chemical Industry CO.,Ltd , https://www.sbcpe.com
·China's first load-bearing photovoltaic highway test section was completed and opened in Jinan
The "solar road" test section has a total length of 1,120 meters
PV pavement length of 1080 meters
The total net area is 5875 square meters
Laying the main and emergency lanes
It is estimated that the annual power generation will be about 1 million kWh.
Annual reduction of carbon dioxide by 15.5 million tons
It can not only let the cars run on the road, but also automatically melt the snow and ice on the road, and the road can also be used to generate electricity. This is the photovoltaic road.
According to the China Bus Network, on December 28, 2017, China's first load-bearing photovoltaic highway test section was completed and opened to traffic in Jinan. This “black technology†first appeared in reality.
In recent years, research on solar road technology at home and abroad has focused on solar power generation technology and overhead solar photovoltaic roads.
It is reported that the idea of ​​solar power pavement is first and foremost a cross-historic technology proposed and researched by a couple of scientists in the United States in 2006. Using pavement space can generate energy, and then the technology The Netherlands was applied to establish the world's first solar cell road.
　　
In 2016, France also built the first solar power generation road. After that, the research team of Changsha University of Science and Technology in Hunan Province began to study the implementation and technical discussion of this technology from various aspects, and then through unremitting efforts, China's first photovoltaic road Also appeared on the territory of China.
I believe that this emergence of photovoltaic roads must represent a major step forward in China's history. If China is to be 5,000 years old, the emergence of every new thing must be continually questioned and hindered to appear in a difficult way, just like the ancient times. People who can think of themselves can fly freely in the sky like birds, and the appearance of the plane has made people have this beautiful fantasy.
Whether the independent power generation technology of photovoltaic roads will be hindered and then reoccupied the international and domestic markets. This still requires us to focus on it. For some people's doubts and uncertainties, the next result will tell us. All the facts that should happen.
However, for the current China, if you want to completely promote the PV road to the whole country, there is still a realistic obstacle. The construction of the photovoltaic road that is currently in the bud is still costly to realize. In this way, the production cost of each photovoltaic road will be higher than that of an ordinary expressway. However, with the continuous research and improvement of photovoltaic roads in the country, in a future world, the photovoltaic road will be like the current expressway. It is full of every section we have traveled.
From the current photovoltaic road to the subsequent car charging, and now to the development of smart electric vehicles, China's technology is constantly emerging with new whimsy and vitality. Some time ago, the unmanned bus that appeared in Shenzhen does not need The driver who drives the car has a driver in the wood. The answer is certainly yes, but although it is unmanned, the driver still has it. The driver is mainly used to deal with various emergencies that may occur.
The emergence of photovoltaic roads is only the beginning. The sci-fi movies are all sensational and unimaginable. "Black technology" will be overcome by people like the current photovoltaic roads. Now there are various technology companies and traditional automobile industries. For example, the joint production of intelligent electric vehicles between Ali and Ford tells us not to doubt that our country will be full of various surprises in the future. Let us wait and see.