The limestone ultra-fine vertical mill is composed of a pressure spring for balancing and boosting and an elastic spring for smoothing and damping. According to the principle of leverage, the symmetrical roller assembly is connected with a horizontally placed spring through a tie rod, so that when a large piece of material is placed on the top of the roller assembly, the spring tie rod can balance the radial force to the roller assembly on the symmetrical surface. Under this condition, the total loading point of the device is increased by about 40%. The elastic coupling device reduces vibration and noise, and avoids the resonance of the ultra-fine vertical grinder.

The equipment required for the limestone crushing process includes: electromagnetic vibrating feeder, jaw crusher, non-metallic crusher, bucket elevator, belt conveyor, electronic control system, etc. In order to achieve the ideal environmental protection effect, it can also be equipped Pulse dust collector.

After the jaw crusher crushes the bulk materials, the bucket elevator is sent to the storage bin, and the electromagnetic vibrating feeder is uniformly and continuously sent to the main grinder for grinding. Under the action of the blower, the ground powder is blown into the powder separator for sorting. The non-metallic mineral powder is transported from the pipeline to the storage bin according to the fineness, and the unqualified particles are sent back to the grinder. The entire system runs under negative pressure, does not produce dust overflow, and protects the surrounding environment. It adopts pulse dust collector to filter, which has good environmental protection effect.
 

After the limestone is extracted from the limestone, the limestone particles are crushed to form limestone particles, that is, stone, sand or further ground powder to form limestone powder. Limestone is widely used in building materials, roads, metallurgy, chemical industries and other industries, and is an important raw material for many industries. There are many types of limestone mills produced, such as Raymond mills, vertical mills, European mills, ultra-fine mills and other equipment. Among them, vertical mills are more popular for grinding limestone. , Let’s introduce the vertical limestone mill.

The vertical mill integrates crushing, drying, grinding, and grading transportation. It is suitable for material grinding in cement, electric power, metallurgy, chemical, ore and other industries. It can produce 10-50 tons of materials per hour. Different types of products meet the needs of customers for different materials. Compared with traditional rolling mills, it has large output and high efficiency.

The hydraulic pressure boost can increase the grinding force, increase the output, and improve the grinding efficiency. Limestone crusher equipment is a kind of crusher equipment that has been used for a long time, and the scope of use is also relatively wide. It is mainly suitable for the preparation of various mineral powders and the preparation of pulverized coal, such as raw ore, gypsum ore, coal and other fine powder processing materials. It looks like a vertical steel container with air inlet, air outlet and feed inlet in the middle. The centerline of the limestone grinding rod is vertical. There is a motor at the lower part of the mill to drive the inner grinding rod. When the grinding disc rotates, the grinding material needs to be crushed or ground. The finished product is blown out through the air at the air inlet. A separator is installed on the upper part of the mill to separate coarse powder and fine powder. The air passing through the mill is then discharged and collected by the air outlet.
 

When the limestone mill is processing and producing materials, if the equipment is abnormal, it needs to be shut down urgently. Then, in what kinds of situations does the vertical limestone mill need to be shut down? Here are a few situations where the vertical limestone mill needs emergency shutdown.

1. When the motor of the main motor, grading equipment, hoist and other auxiliary equipment of the vertical limestone mill is overloaded and exceeds the rated current value, there is no significant reduction by reducing or stopping the feeding process, then an emergency is required Shut down for processing.

2. The temperature of the main motor, auxiliary motor, main bearing and transmission device bearing exceeds the specified value and requires emergency shutdown for treatment to prevent potential safety hazards.

3. The grinding head silo of the vertical limestone mill is out of material, the feeder is jammed, and the raw material is full. The feed cannot be restored in a short time. The automatic feeding control system failure of the equipment cannot be repaired in time, and an emergency shutdown is required.