Lime powder is a powdery substance after limestone grinding. It is widely used in the construction industry and the food industry. It can be used as an industrial calcium carbonate and food calcium supplement. The production of lime powder generally requires crushing and then grinding, and crushers and pulverizers are used.
Lime powder production equipment
1. Crusher (hydraulic cone crusher)
Base on the latest technology and decades of years of producing experience, Clirik designed the HPC series cone crusher. It has excellent crushing efficiency and a good hydraulic control system. Now the HPC series cone crusher has wide application in secondary crushing of many kinds of mining and rock, etc.
2. Powder grinder (HGM ultrafine grinding mill)
HGM ultra-fine mill is independently developed and produced by clirik. It is suitable for grinding non-metallic ores with Mohs hardness less than 7, such as dolomite, marble, calcite, kaolin and so on. These non-metallic minerals can be ground into fine powder with a fineness of 150-2500 mesh, which can be adjusted freely. The industrial pulverizer is more popular in the market. It is easy to operate, stable in operation, does not need to be shut down during maintenance, and truly realizes 24-hour continuous operation.
The production process of lime powder
After the limestone (or bulk quicklime) material is crushed to the required size, the material is sent to the storage hopper by the elevator. Then through the vibrating feeder, the material is uniformly and continuously fed into the main grinding chamber of the superfine mill. Under the action of centrifugal force, the materials are scattered around and fall between the grinding roller and the grinding ring. Under the rolling compaction of the grinding rollers, the limestone is crushed and ground.
The ground material is classified by the classifier, and the unqualified powder is classified by the classifier and then returned to the host for re-grinding. The powder that meets the fineness is separated and collected in the dust collector through the pipeline through the airflow. The collected product powder is sent to the finished product silo through the discharge port by the conveying device and then is packaged by a powder tanker or an automatic baler.
Which mill is better for slaked lime and quicklime to 1200 mesh?
Lime can be divided into quicklime and slaked lime. The main component of quicklime is calcium oxide (CaO), the white solid is refractory to fire. The limestone with high content of (CaO) is calcined in a ventilated lime kiln to above 900°C. It has water absorption and can be used as a desiccant. It reacts with water (and emits a lot of heat at the same time), or absorbs the moisture in the moist air, namely mature lime [calcium hydroxide Ca(OH) 2], also known as "slaked lime". Slaked lime dissolves 1.56 grams (20°C) in one liter of water. Its drinking solution is called "lime water", which is alkaline and absorbs carbon dioxide in the air to form calcium carbonate precipitation.
HGM ultra-fine grinding mill is an industrial milling equipment that can grind non-metallic ores into 150-2500 mesh powder. It can be used to process slaked lime and quicklime. It has a small footprint, stable operation, convenient maintenance (realizing non-stop refueling), high efficiency, energy saving, and environmental protection. Many manufacturers choose it because of its high cost performance, freely adjustable fineness, non-stop maintenance, and truly realize 24-hour non-stop operation.
CLUM superfine vertical roller mill can produce 325-3000 mesh non-metallic ore powder. It can also be used to process hydrated lime and quicklime. The industrial grinding mill has large output, intelligent operation, high efficiency and stability. The finished powder produced is high-end powder with high whiteness and good shape.
Both of the above two industrial mills can be used to process quicklime and slaked lime, and the specific selection can be based on actual needs. There is no high requirement for the quality of the finished powder, and the HGM ultra-fine powder grinder can be selected for the pursuit of cost-effectiveness. The quality of the finished powder is too high. For high-end industries, you can choose the CLUM vertical roller mill.