What is the difference between high-pressure suspension roller mill and Raymond mill?

At present, the most widely used pulverizers in the mining industry on the market are Raymond mill and high-pressure suspension roller mill. What is the difference between these two types of pulverizers?


The high-pressure suspension roller mill is the Raymond mill, which is an upgraded version of the Raymond mill. Under the same power conditions, the output of the high-pressure suspension roller mill is 10%-20% higher than that of the ordinary Raymond mill, and the fineness of the ground material is finer and the dust is less.

The working principle of the high-pressure suspension roller mill is similar to that of the Raymond mill, but the grinding device is equipped with a high-pressure spring with a pressure of 1000-1500 kg.

When the machine is working, under the action of high-pressure spring and centrifugal force, the grinding roller rolls in close contact with the grinding ring, and its rolling pressure is 1.2 times higher than that of the Raymond mill under the same conditions, and the output can be increased by 20%-30%; After the grinding roller and the grinding ring reach a certain amount of wear, adjust the length of the high-pressure spring to maintain a constant grinding pressure between the grinding roller and the grinding ring, so as to ensure a stable output and fineness.

The appearance of the Raymond mill and the high-pressure suspension roller mill is actually the same, mainly due to the difference in the particle size and output of their feed and discharge.

Compared with the Raymond mill, the high-pressure suspension roller mill has some improvements in all aspects. The main reason for these improvements is that the high-pressure suspension roller mill has an extra set of high-pressure springs than the Raymond mill, so the performance of the suspension roller mill in all aspects is relatively a little better.

In terms of feed particle size, the difference between the two is generally between 15-35 mm; the particle size of the finished product is between 0.044-0.165 mm for Raymond mill, and between 0.033-0.613 mm for high-pressure suspension roller mill; for output, suspension roller mill It has more spring pressure than Raymond mill, so the output is larger than Raymond mill.

The working principle of the two mills is basically the same. Both the grinding roller and the grinding ring squeeze the grinding material. The advantage of the suspension roller mill is that the pressure of the spring can be adjusted to make the grinding roller and the grinding ring wear at a certain level. After that, the fine powder can still be processed without affecting the output and fineness, so the suspension roller mill is more durable.

Working principle of YGM high pressure Raymond mill

 

Advantages of YGM High Pressure Suspension Roller Mill

 

High Capacity:

YGM series high pressure suspension grinding mill is upgraded from traditional Raymond mill, which make capacity 20% higher than Raymond mill.

Widely Used:

SBM Ultrafine Powder Technology Co.,Ltd. supply more than 200 sets YGM series high pressure mills to customers and distributors , so far, SBM Ultrafine Powder Technology has about 16 agents in China, such as SBM, Zenith , Liming,etc.
YGM series high pressure mills widely used for grinding calcium carbonate, talc, gypsum, feldspar, barite, pyrophyllite,dolomite,kaolin,coke,etc.

Adjusted Output Size:

50 mesh-425 mesh（35-200 micron ）.Output size is adjustable by adjusting running speed of classifier. 

High Capacity and Lower Power Consumption:

YGM9517 high pressure suspension grinding  mill  - calcium carbonate
Fineness (mesh )	Capacity(ton / hour)	Power consumption for one ton powder (kwh /ton)	Total line motors rated power:82.5KW
80-120	6-5.5	13.7-21
180-200	5-4.5	23.2-25.7
300-325	3.5-3	33-38

Less Land Covering Space & Less Labor Required:

One set YGM9517 high pressure suspension grinding mill installation cover 48 square meter space, 8 meter height . Total production line need 2-3 workers, one for raw material feeding , one for operation and maintenance , the last one for final packing. 

Long lifecycle of Wearing Parts:

Our wearing parts made by high Mn material, which is designed by our technical department with Bao Group together. The normal wearing parts includes ring, roller, scraper knife and scraper knife base , normally for grinding calcium carbonate, 10 hours /day, 30days/month, they can work 12-18 months. 
 

YGM high pressure suspension roller mill parameters

 

Model	Roller			Ring		Feeding Size(mm)	Finished Size(mm)	Mill System Power(KW)	Capacity (t/h)	Overall Dimension (mm)
	Quantity (piece)	Diameter (mm)	Height (mm)	Inner Diameter (mm)	Height (mm)
YGM7815	3	260	150	780	150	15	0.613-0.033	35.7	1.0-3.0	4300*3500*5100
YGM9517	4	310	170	950	170	25	0.613-0.033	72.65	2.1-5.6	7100*5900*7900
YGM1280	3	370	240	1170	240	20	0.613-0.033	145.15	4.5-12.0	9300*5600*8200
YGM1300	4	410	280	1270	280	20	0.613-0.033	202.15	6.5-16.0	9100*8200*8400
YGM1620	4	450	300	1500	300	20	0.613-0.033	322.2	8.0-20.0	12500*5700*10500
YGM1720	4	510	300	1720	300	35	0.613-0.033	450	10.5-28.0	11550*9500*1050