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Limestone mill equipment

Limestone mill equipment

Product introduction:

The main component of limestone is calcium carbonate (CaCO3). Lime and limestone are used extensively as building materials and are important raw materials for many industries. Limestone can be directly processed into stone and fired into qu

Limestone and its milling equipment:

The main component of limestone is calcium carbonate (CaCO3). Lime and limestone are used extensively as building materials and are important raw materials for many industries. Limestone can be directly processed into stone and fired into quicklime. Lime has quicklime and slaked lime. The main component of quicklime is CaO, which is generally in the form of a block, pure white, and pale gray or yellowish when it contains impurities. Quicklime absorbs moisture or adds water to become hydrated lime. Slaked lime is also called slaked lime. Its main component is Ca(OH)2. The slaked lime is formulated into a lime slurry, a lime paste, a lime mortar, etc., and is used as a coating material and a tile adhesive. 

Limestone mill equipment generally refers to a three-ring four-ring superfine mill. The three-ring four-ring superfine grinding machine adopts the grading continuous grinding method to carry out multiple cycles of grinding on the material at the same time, realizing ultra-fine grinding. The three-ring four-ring superfine grinding machine is an ultra-fine grinding machine developed according to the needs of the domestic ultra-fine grinding market. The three-ring four-ring ultra-fine grinding machine is mainly used for crushing barite, limestone, ceramics, slag, etc., non-flammable and explosive mines with a humidity below 6%, more than 280 kinds of materials in the mining, metallurgy, chemical, building materials and other industries. High-fine powder processing. Ultrafine powder processing of non-flammable and explosive brittle materials with Mohs hardness ≤6, such as calcite, chalk, limestone, dolomite, carbon black, kaolin, bentonite, talc, mica, magnesite, illite, pyrophyllite , vermiculite, sepiolite, attapulgite, rectorite, diatomaceous earth, barite, gypsum, alum, graphite, fluorite, phosphate rock, potassium ore, pumice, etc., more than 100 kinds of materials, fine powder The finished product has an arbitrarily adjusted particle size between 325-3000 mesh and a yield of 0.7-7.5 tons per hour. Shanghai Clirik Machinery Co., Ltd. HGM series ultra-fine grinding machine has five models, namely HGM80, HGM90, HGM100, HGM100A, HGM125 (new type).

Limestone mill working principle:

When working, the main motor drives the main shaft and the turntable through the reducer, and the roller pin on the edge of the turntable drives dozens of grinding rolls to roll in the grinding ring raceway. The bulk material is broken into small particles by a hammer crusher and then sent to the storage bin by the hoist, and then passed through the vibrating feeder and the inclined feeding pipe to uniformly feed the material to the bulk disc of the upper part of the turntable. The material is scattered to the circumference of the circle under the action of centrifugal force, and falls into the raceway of the grinding ring, which is impacted, rolled and ground by the ring roller, processed into a powder through the processing of the three-layer loop, and the high-pressure fan passes the external air through suction. Inhaled into the machine and the pulverized material is brought into the classifier. The impeller rotating inside the classifier re-grinds the coarse material, and the fine powder that meets the requirements enters the cyclone dust collector with the airflow and is discharged from the lower discharge valve, and the airflow with a small amount of fine dust passes. The pulse dust collector is purified and discharged through a fan and a muffler.

Performance characteristics of limestone mill:

● High efficiency and energy saving
, the output of jet mill, agitator mill and ball mill is more than double when the product fineness and motor power are the same;
● Low energy consumption, long service life of wearing parts,
grinding roller, The grinding ring is forged from special materials, which greatly increases the durability. In the case of the same material and finished product fineness, the service life of the wearing parts of the impact crusher and the turbine crusher is 2-3 times longer, generally more than one year; when processing calcium carbonate and calcite, the service life is up to 2-5 years;
●Safe and reliable
Because there are no rolling bearings and screws in the grinding chamber, there is no problem that the bearing and its seal are vulnerable, or the problem of destroying the machine due to loose screws;
● Wide application range and high fineness
Product fineness can be adjusted freely between 325-3000 mesh, one time can reach D97 ≤ 5μm;
● Environmentally friendly pollution-free
environmental pulse dust collector and muffler use greatly reduce the pollution of dust and noise to the surrounding environment.

Limestone mill technical parameters:

Average working diameter / mm
Number of loops / layer
to 4
Number of grinding rollers / one
twenty one
24 to 32
34 to 36
40 to 44
Spindle speed / rpmin
230 to 240
200 to 220
180 to 200
135 to 155
Feeding size / mm
Finished product size range /um(mesh)
5-47 (325~2500)
Finished product output t/H
Mounting shape length * width * height / m
Machine capacity / KW

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