Vertical roller mill

Feed size:≤10mm

Capacity:4.5-210t/h

Materials:Coal, gangue, cement, ammonium phosphate, potassium chloride, limestone, kaolin, wollastonite, graphite, silicon nit and silicon carbide, etc.

+8619303970888

Overview

Vertical mill, also known as roller mill, is widely used in large-scale material grinding and ultra-fine grinding processing in cement chemical industry, coal, and other industries. It is an ideal equipment for grinding industry that integrates crushing, drying, grinding, grading and transportation. Mineral slag micro powder is a kind of superfine obtained by grinding high furnace slag, which has ultra-high activity and is used as high-quality admixture for cement and concrete. It is a new type of green building. The vertical mill for mineral slag powder is a special equipment for grinding preparation of mineral slag powder.

The structure of the vertical mill mainly includes the following parts:

Grinding table: It consists of a guide ring, a wind ring a material retaining ring, a liner plate, a disk body, a scraper plate, and a lifting device, which together constitute the complete structure of the grinding table.

Inding roller: The roller sleeve of the grinding roller is a wear-resistant part, so it needs to have sufficient toughness and abrasion resistance to ensure its reliability during longterm use.

Air classifier: This is a key part in the vertical mill, mainly responsible for the separation of coarse and fine powder. The air classifier can be divided into, dynamic, and high-efficiency combined types, each with its unique working principle and application scenarios.

Pressure device: Usually, hydraulic devices and accumulators are used to the necessary pressure for the grinding table, thus ensuring the effective crushing of the material.

Monitoring device: It includes shaking arm monitoring and vibration monitoring, which is used to the working state of the vertical mill in real time to ensure its safe and stable operation.

Transmission device: It consists of an electric motor and a reducer, and responsible for driving the rotation of parts such as the grinding table and the air classifier.

Spray water system: It is mainly used to reduce the temperature of the material and the material layer, prevent the material from overheating or caking, and affect the crushing effect.

Coarse powder external circulation system: The coarse powder is returned to grinding table for re-crushing through the hoist, realizing the recycling of materials.

Advantages

1. The whole system operates under full negative pressure, with reliable sealing, no dust overflow, clean environment, and finished product collection using bag-type dust collectors, with dust removal efficiency of up to 99.9%, higher than the latest national environmental protection standards; the limit device of the HLM grinding machine ensures that the grinding disc grinding roller do not contact during operation, with low vibration and low noise.

2. High grinding efficiency, low power consumption, 30%-50% electricity saved compared with ball mill, excellent roller disc structure, long grinding curve, large area; limit device prevents direct contact between grinding roller and grinding disc, less wear of grinding roller sleeve and liner plate; grinding roller sleeve can be used upside down, service life doubled; equipped with hydraulic loading system, grinding pressure can be flexibly adjusted according to the change of grindability, high yield and energy saving.

3. The full-automatic control system is adopted, which can realize remote control, simple and convenient; the limit device prevents the grinding roller and grinding disc from direct, and can start empty, without the need for material distribution before starting; the external independent thin oil lubrication station is convenient for oil change, the reducer and grinding roller bearings all forced thin oil lubrication, which lubricates and takes away a large amount of heat at the same time, and prolongs the service life of the reducer and grinding roller; the hydraulic maintenance device can easily turn the grinding roller out of the machine, and the grinding roller sleeve replacement and grinding roller maintenance are convenient and quick.

4. Since it integrates powder grinding, grading, drying, and transportation, the process flow is simple, the layout is compact, the land occupation is small, it can arranged outdoors, and the construction cost is reduced; it has a drying function, can pass hot air, and can dry powdery materials directly and multiple times in the mill, a set of drying equipment. By adjusting the temperature of hot air, it can meet the drying requirements of materials with different humidity, and can meet the drying requirements of materials with a humidity of 15%.

Technical parameter

Model

Capacity(t/h)

Millstone
diameter(mm)

Millstone orbit
diameter(mm)

Raw material fineness(%)

Main motor (kW)

HQZG1300

20-25

1870

1300

R0.08≤12%

200

HQZG1500

26-34

2180

1500

R0.08≤12%

280

HQZG1700

40-50

2400

1700

R0.08<12%

400

HQZG1900

60-70

2680

1900

R0.08<12%

500

HQZG2200

85-110

2900

2200

R0.08<14%

800

HQZG2400

95-130

3140

2400

R0.08<14%

900

HQZG2800

120-160

3300

2800

R0.08<14%

1250

HQZG3400

190-240

4560

3400

R0.08<15%

1800

Note: Bond index ≤12 kWh/t. Raw material moisture :<10% ; Raw material moisture: ≤1%



Leave a Comment

Related articles

Is there any movement in the large p
2021-07-08

"Pebble crushing is a common raw material in the sand and stone processing industry. Compared with the fixed crushing production line,

Reply

Equipment configuration and price of
2021-07-08

"Sand production line is the production of all kinds of stone, sand, aggregate production lines, from a number of equipment, commonly used sand production

Reply

Mobile crusher operation notes as we
2021-07-08

"Any object to long-term stable use is inseparable from maintenance, in the operation of the time also need to pay more attention, mobile crusher is no exception.

Reply

What are the types of crawler mobile
2021-07-08

"With the continuous progress of science and technology, China's industrial system has undergone a huge leap in development

Reply