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Dust bags also pointed out that with the increase in the concentration of carbon dioxide in the atmosphere, it can promote the growth of certain plants. Because plants absorb carbon dioxide from the atmosphere of their living circles, the proliferation of plants can increase the absorption of carbon dioxide accordingly, and remove dust and environmental protection equipment, which will establish a new static balance of carbon dioxide content in the environment. Therefore, the new carbon dioxide concentration will not be much different from the current level. Another factor affecting the average temperature of the earth is the absorption and reflection of the sun's radiation caused by particles in the atmosphere. Some research results suggest that the average temperature of the lower atmosphere is decreasing because the solar energy reaching the surface is reduced by the absorption of particulate matter. This can also prove that the increase in air pollution will not only cause an increase in atmospheric temperature, but on the contrary, it will cause a decrease in temperature, and it will even aggravate the impact of dust on buildings, plants and animals in the Ice Age (4) The dust particles in the air itself May be chemically inert or active. If they are inert, they can also absorb chemically active substances from the atmosphere, or they can be synthesized into a variety of chemically active substances. According to its chemical composition and physical properties, dust particles can extensively damage buildings. Dust particles will fall on the surface of the painted building and the glass curtain wall, and will stain it.
Every year, the cost of repainting and cleaning inside and outside buildings and structures is considerable. It is also reported that the dust and harmful gases in the atmosphere accelerate the corrosion rate of cultural relics, mainly due to the corrosion and mineralization of metal cultural relics and the cracking of stone cultural relics More importantly, the fading of textiles and murals is that the dust particles can cause direct chemical destruction through inherent corrosiveness, or the role of corrosive chemicals absorbed or adsorbed by the inert dust particles discharged into the atmosphere. Metals usually resist corrosion in thousands of air, even in clean, moist air. However, when hygroscopic dust particles are common in the atmosphere, they can corrode metal surfaces even in the absence of other pollutants. Examples of corrosion of metal surfaces exposed to the industrial atmosphere are well documented in the literature. The effects of particulates on animals and plants are generally poorly understood. However, the destructive effects of several specific substances have been observed. Fluoride-containing dust particles can cause damage to certain plants.
Magnesium oxide, which was dropped on the farmland by the dust bag, once caused the plants to grow poorly. When animals eat plants with toxic dust particles, their health will be damaged. These toxic compounds can be absorbed into plant tissues or become contaminated on the plant surface and persist. Animals ingesting plants with fluorinated particulate matter can cause fluorosis. Cattle and sheep eat plants that have arsenic-containing particles deposited on them, and they will become victims of arsenic poisoning. (5) Effects of dust on equipment and products 1 Dust wears on machinery and equipment.
The dusty air flow collides with the wall surface during movement, causing cutting and friction, causing wear. The abrasiveness of the dust in the dust-containing airflow is proportional to the air power of 2 ~ 3, the higher the airflow speed, the more serious the abrasion of the wall surface by the dust. However, when the dust concentration reaches a certain level, due to the mutual collision of the dust particles, the collision friction with the wall surface is reduced. In the dust removal system, the flue gas of the middle high speed strongly scours the inner wall of the dust collector, causing the shell to wear. The wear of the volute and cone part of the centrifugal cyclone dust collector is an example.