How ash is formed, how lime is formed

What we usually call ash is dust, which is a pollutant emitted by industrial boilers. In addition, the part of these pollutants collected by dust removal equipment is also called ash, such as fly ash collected from power plants.

Of course, the dust produced when growing and harvesting grain in rural areas is usually called ash, and the dust raised by vehicles on the road also becomes ash.

Ash is actually what we can say is fine dust.

Solid dust in granules, suspended in the air.

The steps of lime formation are as follows:1. Raw materials and production of lime. All natural rocks with calcium carbonate as the main component, such as limestone, chalk, dolomitic limestone, etc., can be used to produce lime.

The natural rock whose main component is calcium carbonate is calcined at an appropriate temperature to remove the decomposed carbon dioxide, and the product with calcium oxide (CAO) as the main component is lime, also known as quicklime. Quicklime is white or gray in the form of blocks, and for ease of use, block quicklime often needs to be processed into severant quicklime powder, slaked lime powder or lime paste. Yu Qian's "Lime Yin" describes the calcination process of quicklime

Thousands of hammers were carved out of the deep mountains, and the fire burned as if it were idle. The broken bones are not afraid, and they want to leave their innocence in the world.

2. Maturation and hardening of lime. The process by which quicklime (CAO) reacts with water to form calcium hydroxide is called the maturation or digestion of lime. The product produced by the reaction, calcium hydroxide, is called hydrated lime or slaked lime.

The lime with good calcination and high calcium oxide content matured faster, and the heat release and volume increased more. Depending on the amount of water added, lime can be matured into slaked lime powder or lime paste.

Lime is an air-hard inorganic cementitious material with calcium oxide as the main component. Lime is made of limestone, dolomite, chalk, shell and other products with high calcium carbonate content, calcined by 900-1100. Lime is the earliest cementitious material used by human beings.

Lime has a wide range of applications in civil engineering, and can also be used in medicine in China. For this reason, poems with lime as the theme have been handed down in ancient times, and they have been chanted through the ages.

1. Ancient sun-like stars, i.e., low-mass stars, produce dust in the period before they are about to die.

2. Supernovae**, i.e., massive stars produce dust when they collide with death.

3. Dust can also be formed by smiling dirt particles, rock fragments weathering in the air, and ashes left behind by the burning of meteors as they fly towards Earth.

4. Soot from chimneys, pollen from plants and other particles floating in the air are also dust.

5. The components of dust include: floating dust, dust insects and excrement, fibers, germs, chemical fumes, etc., which float in the indoor air for a long time and are inhaled or attached to the surface of dry materials in large quantities, which not only harms the health of personnel, but also reduces the service life of indoor electronic equipment and exquisite decoration.

First, ancient sun-like stars (low-mass stars) produce dust in the stage before they are about to die; Second, supernovae** (massive stars die) produce dust;

The third is that dust is some tiny dirt. Among the dust you get from the windowsill, you can find shards of rock, as well as ashes from the burning of meteors as they fly towards Earth.

Fourth, dust also includes soot from chimneys, pollen from plants, and other particles of matter floating in the air. Dust is a small solid substance that can be present if it is not vacuumed or vacuum-treated or in a confined environment.