High pressure grinder, high pressure grinding mill

 

High-pressure grinder (High Pressure Mill) is a new type product, which is developed on the basis of Raymond grinder. Compared with the Raymond grinder, under the function of strong pressure spring, the pressure between roller and materials can be improved by 1500KgF; the output can be improved by 10% under the same powder condition. The machine are widely used in grinding more than 320 noninflammable and nonexplosive materials with a Moth's hardness below 9.4 scale, a humidity below 6%, such as barite, calcite, limestone, potash, ceramic, slag, glass, manganese, chrome and other materials used in mining, construction, chemical and metallurgy. The sizes of powder can be controlled ranging from 80 to 480meshes, minimum size can reach 1000 meshes. By being equipped particular parts, the High pressure mill can produce thick powders ranging from 30 to 80 meshes and output will be higher.

[High Pressure Grinding Mill Overview]

High Pressure Suspension Grinding Mill is a new kind of grinding mill, which is invented by our company chief engineer Mr. Sun, who has been engaged in the research and development of grinding mill for many years. This new patent product with high efficiency and low energy consumption opened up an epoch of the international industry pulverizing.

[High Pressure Grinding Mill Application]

High Pressure Suspension Grinding Mill is mainly applied to the powder processing of mineral products in industries of metallurgy, construction, chemistry, and mining etc. The grinding mill can produce powder from more than 280 kinds of non-flammable and non-explosive mineral materials with Mohs hardness below 9.3 and humidity below 6%, such as barite, limestone, calcite, granite, porcelain clay, basalt, gypsum etc.

[High Pressure Grinding Mill Main Features and Benefits ]

1. Compared with the common Raymond grinding mill under the same power conditions, the capacity can be increased by 10%; moreover, under the performance of high-pressure springs, the rollers grinding pressure on raw materials can be raised by 800-1200kgf.

2. The final product size ranges from the maximum particle diameter of 0.613mm (30mesh) to the finest diameter of 0.033mm (425meshs).

3. All the mineral materials with Mohs hardness below 9.3 can be crushed.

4. The grinding device adopts a superposition multi-grade sealing with good sealing performance.

5. Its dust-removing effect fully meets the national dust discharge standard.

6. The classifier is easy for adjustment.

[High Pressure Grinding Mill Main Parts]

The whole system of high pressure suspension grinding mill consists of main frame, decelerator, classifier, piping device, blower, jaw crusher, dustpan elevator, electromagnetic vibration feeder, electric switch box motor, etc.

 

[ High Pressure Grinding Mill Main Technical Data ]
Model	YGM8314	YGM9517	YGM4120
Number of Roller(piece)	3	4	5
Major Diameter of Roller X Height(mm)	φ270X140	φ310X170	φ410X210
Internal Diameter of Ring X Height (mm)	φ830X140	φ950X170	φ1280X210
Main Engine Spindle Speed (r/min)		130	103
Maximum Feeding Grain Size (mm)	20	25	30
Output (t/h)	1.6~0.045	1.6~0.045	1.6~0.045
Overall Dimension (mm)	5300X4100X5200	7100X5900X7900	9200X7250X9700

 

 

[ High Pressure Grinding Mill Technical Data ]
Name	Item	Unit	Specification and technical data
			YGM8314	YGM9517	YGM4120
Motor of Main Machine	Model		Y225M-8	Y225M-4	Y225M-4
	Power	KW	22	37	75
	Spindle speed	R/min		1470	1480
Motor of Adjustable Varying Speed Motor	Model		YCT180-4A	YCT200-4A	YCT200-4B
	Power	KW	5.5	5.5	7.5
	Spindle speed	R/min	125-1250	125-1250	130-1300
Motor of Blower	Model		Y180M-4	Y220L-4	Y250M-4
	Power	KW	22	37	75
	Spindle speed	R/min		1470	1480

Note: This specification is just reference, any changes are subject to the high pressure suspention mill products

[High Pressure Grinding Mill Operation and Maintenance]

1. During the application of the high pressure grinding mill, some personnel shall be arranged to take responsibility of management. The operators must be qualified with the required technical knowledge. Before the installation of this grinding mill, the persons related to the operation should receive technical training and fully understand the operating principle, performance and regulations of the grinding mill.

2. In order to guarantee the grinding mill in a normal working state, a Safety Operation System for the Maintenance of the equipment must be established. Only in this way can the grinding mill be guaranteed to have a long-term and safe operation. Meanwhile, it is necessary to have the required repairing tools, lubricant and grease, spare parts and accessories.

3. After some period of running, the high pressure grinding mill should receive an examination and repairing. The components vulnerable to worn out, such as grinding roller, grinding ring, relieving tool etc. should be repaired or replaced. Before and after the operation, a careful examination should be carried out for the connecting screws, bolts and nuts on the grinding rollers so as to find whether they are loose or sufficiently lubricated.

4. When their application time surpassing about 500 hours, all the rolling bearings in the roller sleeves must be cleaned, and the damaged parts should be replaced. The oiling tool can be either a manual oiling pump or grease gun.