Limestone Powder Grinding Mill Machinery

Overview

Limestone is used in more daily products than one might think. Limestone is a sedimentary rock, formed by inorganic remains, such as shells or skeletons, that have compressed for a very long time. The main element found in limestone is calcium carbonate but it may contain magnesium, iron or manganese as well, which affect the whiteness and hardness. Limestone is one of the major ingredients used in construction materials but also has many other uses in daily life.

Use of Limestone Powder

Steel

Limestone is used in making steel products. Limestone is added to mix with impurities in the melted iron, producing slag. The slag is separated from the iron leaving it clean of all impurities and limestone, which is then made into steel.

Plastic

Limestone is used in a wide range of plastic and elastomeric, or rubber, products. The regular and controlled shape of the limestone particles and size of these particles makes it a great filler material for the production of plastic and rubber. Fillers are used to expand expensive plastics or other materials to increase the product size without the cost. Since limestone is a non-reactive material, it is perfect for this application.

Construction

Limestone is used in virtually all construction materials. Limestone is added in with clay and heated to form cement, which can be made into mortar by adding sand and water. Mortar is used to set bricks and act as an adhesive when it dries. Limestone is also used in concrete and asphalt filler.

Neutralizer

Limestone can be added to water to remove impurities and pollutants. Since limestone is primarily made of calcium carbonate, a base substance, it can be used to neutralize acidity in industrial waste and run-off. Limestone can also be used to reduce soil acidity for agriculture.

Other Use of Limestone Powder

Limestone can be used in pigment-making and as a filler for more expensive paints. Paper is also manufactured using limestone. Wood is treated with acid to help break it down, which is then treated with limestone to neutralize the acid and whiten paper. Limestone is also used in dyes and carpeting or other floor coverings, such as protective resins and coatings.

Benefit

Benefits of Clirik Limestone Powder Grinding Mill Machinery

1. High efficiency：Under the same final size and power, the product capacity of ultrafine mill is twice than jet mill and agitation mill.

2. Longer lifetime of spare parts：The roller and ring are made of special material, which improve the grinding efficiency a lot. For same material and final size, the lifetime of its wearing parts can reach to more than one year, about 2-5 times as long as that of vertical shaft impact crusher and turbo-mill. Especially when handling calcium carbonate and calcite, the lifetime can reach 2-5 years.

3. High safety and reliability：There are no rolling bearings and bolts in grinding cavity, so problems caused by bolts shedding or wear of bearings and seal components will never happen.

4. High fineness of products：The product fineness can reach D97≤5μm.

5. Environment friendly：The application of pulse dust collector and muffler reduce the pollution and noise of the dust, which has reached national environment protection standard.

limestone grinding mill machinery

Working Principle of Limestone Powder Grinding Mill Machinery

When the limestone powder grinding machinery is at work, the main bearing and each dial are driven by electromotor through reducer, and all the grinding rollers are rolling in the ring channels driving by dial through plunger. The materials are driven to the edge of the turn plate by the centrifugal force and fall down into the grinding chambers. The high-pressure air blower constantly inhales air, airflow with crushed materials are brought to classifier whose high-speed impeller will screen the airflow: The unqualified particle size will fall and return to the mill for being reground while the qualified particle size mixed with air will go into the cyclone powder collector. Most of the qualified powders will fall and exit from the discharging valve at the bottom; A small proportion of the fine powders, with airflow, moves to the dust cleaner. The materials from the above two lots are sent by the conveyor to get finished powders packed. In addition, filtered clean air will be emitted from muffler in the end.

grinding mill working principle

Specifications

The limestone powder production line including, stone crusher(hammer crusher), grinding unit(mainly including ultra fine grinding mill, Raymond mill, vertical roller mill, and so on), conveyor machines, elevator, powder packing machine and etc..

The specifications of limestone powder grinding mill machinery as following:

Limestone Grinding Mills Comparison Chart
Vertical roller mill	CLUM vertical roller mill is one of new technology stone powder grinding mill machines, can be used in including limestone and other more than 300 kinds of minerals powder grinding, and the powder fineness made by vertical roller mill can be adjusted between 300-1500 mesh.
Raymond mill	only 50-450 mesh, roller and ring will easily wear, as CB is sticky and inform a layer between roller and ring. Not suitable.
Ball mill	better for 50~200 mesh powder making, higher power consumption, and worst performance. Most clients won’t use ball mill for production.
micro powder grinding mill	micro powder grinding mill also can be called ultra fine grinding mill, superfine powder mill and so on. The powder fineness made by micro powder grinding mill can be adjusted between 300-3000 mesh, it's more energy saving and higher efficiency.

Minerals Powder Processing System

Limestone Powder Grinding Mill Machinery

Overview

Benefit

Specifications

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