INTRODUCTION OF PRODUCT                                                                                                                                                                                                                        

The ore crushing and grinding process is the most critical process of mineral processing in mines. The crushing and grinding process is also one of the important technologies for mineral processing. Considering the properties of limestone raw materials, the strength of limestone itself is not very high, but the hardness is medium. Jaw crushing can be used for the initial breaking link. For the crushed limestone powder processing, different types of limestone mills can be selected according to the requirements of the fineness of the finished product. HC vertical pendulum mill is mainly suitable for producing 80-400 mesh limestone powder. Customized vertical limestone mill comparing to the traditional 5R type Raymond mill, the capacity is about 2.5 ~4 times higher than traditional mill. CUSTOMIZED VERTICAL RAYMOND GRINDING MILL is a better choice for LIMESTONE POWDER making projects for effectively increasing the production capacity and reducing the power consumption at same time.

ADVANTAGES AND FEATURES                                                                                                                                                                                                                       

New technology, spider-arm and pendulum grinding system. The machine has very small vibration, low noise, stable mechanical operation and reliable performance.		The processing capacity of materials is larger and the efficiency  is higher. Under the condition that the total power of the R-type mill is unchanged, the output is increased by more than 40% year-on-year, and the unit power consumption cost is saved by more than 30%.
The remaining air outlet of the mill is equipped with a pulse  dust collector, and its dust collection efficiency reaches 99.9%. All the positive pressure parts of the main machine are sealed, and a dust-free processing workshop is basically realized.		Adopting a new sealing structure design, the grinding roller device can be filled with grease once in 300-500 hours. In addition, there is no need to remove the grinding roller device to replace the grinding ring, which is more convenient for maintenance.

MILL STRUCTURE & WORKING PRINCIPLE                                                                                                                                                                                                   

HC pendulum grinding mill consists of base, center shaft support, grinding ring, spider-arm, roller assembly, center shaft, lifter support, lifter support base, housing and other structures.

Material is broken by jaw crusher firstly into required size, which are carried by bucket elevator up to storage hopper, again by feeder quantitative into host cavity for grinding, host cavity support in the plum flower rack roller device rotation around the center axis, roller under the action of centrifugal force, horizontal swing outward, so that the roller compaction of ring, roller grinding roller rotation around at the same time.

LIMESTONE POWDER PRODUCTION PROCESS                                                                                                                                                                                           

1. Crushing of raw materials

The large pieces of limestone are crushed by the crusher to the fineness (15mm-50mm) that can enter the mill.

2. Grinding

The crushed small pieces of limestone are sent to the storage hopper by the elevator, and then sent to the grinding chamber of the mill evenly and quantitatively by the feeder for grinding.

3. Classification

The ground material is classified by the classification system, and the unqualified powder is classified by the classifier and returned to the main engine for re-grinding.

4. The collection of finished products

The powder that meets the fineness is separated and collected in the dust collector through the pipeline through the airflow. The collected finished 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.

TECHNICAL DATA                                                                                                                                                                                                                                              

Note:

1. The Models above are equiped with newly designed spider-arm structure.

2. The capacity is for limestone powder, and specification is just a reference. The actual production depends on these materials being processed.

SUCCESSFUL CASES                                                                                                                                                                                                                                       

   Limestone Desulfurization Project of Electric Power factory in China

    Equipment model and number: 8 HC1700 Raymond mills

   Processing material: Limestone

   Finished product fineness: 325 mesh D96

   Equipment output: 14-16t/h

RECOMMEND LIMESTONE GRINDING MILL                                                                                                                                                                                                   

                CHINA HIGH CAPACITY VERTICAL LIMESTONE GRINDING MILL HLM                 HLMX SUPERFINE GRINDING MILL                                 HCQ REINFORCED GRINDING MILL