Sand Making Machine

Factors Affecting The Output Of Sand Making Machine

Sand making machine output is low, what should I do? Come and see these factors that affect production capacity. Due to the scarcity of natural sand resources and increasingly stringent environmental and ecological requirements, more and more users are turning their attention to artificial sand production. Sand making machine, also known as vertical shaft impact crusher, is the preferred equipment in the field of artificial sand making and stone shaping. There are many factors influencing the production capacity of sand making machines. Today, we mainly analyze the following factors: the influence of material properties, the influence of crusher operating parameters, and the influence of impeller rotation speed.

Effect of material properties

Material hardness

The main factor influencing the ore crushing difficulty in the production process is the hardness of the ore itself. Due to the uneven distribution of the mechanical properties of most ore materials, materials with large block sizes and many texture cracks are poor in mechanical strength and are easily broken. The finer the particle size, the less the internal texture gap, the high mechanical strength, and not easily broken. The greater the hardness of the ore, the greater its density. The harder materials are more dense due to their own broken texture structure, so the crushing is more difficult, the lower the crushing efficiency, and the more severe the wear of the equipment, the slower the speed of sand production, and the lower efficiency .

Sand Making Machine Sand Making Machine

Feed size and reasonable amount of feed

Each model of the sand making machine limits the maximum infeed particle size, and too large infeed particle size can easily cause clogging and make the device lose its crushing ability. The excessive fines contained in the material also affect the sand production.

For materials with a lot of fines, they should be sieved one time in advance. The fine powder should be filtered from the material as much as possible to avoid affecting the normal operation of the sand making machine.

The finer the particle size of the broken material, the greater the anti-crushing performance of the material, the greater the difficulty of crushing, the lowering of the efficiency, and the greater the energy consumption of the machine. If there is no special requirement, the fineness of the material is generally set to be fine. The proper amount of feed helps to increase the life of wearing parts while ensuring the output. When the input amount reaches 70% to 90% of the full load of the impeller, the amount of sand produced reaches a peak value. However, if the feeding amount is too small, not only the output of the equipment is reduced, but also the wear of the crushing chamber liner and the like are increased, and the replacement cycle of the accessories is shortened.

Material humidity

When the moisture contained in the material is large, the material is easily adhered in the sand making machine, and it is also easy to cause blockage in the process of conveying the material, resulting in a decrease in the sand making capacity. When the material is selected, the humidity of the material must be strictly controlled, and the moisture content is controlled within 8%. If the humidity of the selected material is too large, sunshine or air drying may be used to reduce the percentage of moisture in the material.

Material viscosity

The greater the viscosity of the material, the easier it is to adhere. The viscous material sand making machine impeller adheres to the inner wall of the flow channel cavity, and even blocks the flow channel. If it cannot be cleaned in time, it will affect the working efficiency of the equipment, and in severe cases it may also affect the normal operation of the sand making machine. Therefore, when selecting materials, low viscosity should be selected.

Impact of impeller speed

The continuous material enters the high-speed rotating impeller and accelerates to form a continuous source of power flow, which produces high-speed extrusion, grinding and crushing in the vortex chamber and continuous crushing production. From the working principle of the vertical shaft impact crusher, we can see that when the particle size of the material has been determined, with the increase of the crusher rotor line speed, the kinetic energy increases greatly; when the crusher rotor line speed is timed, if the mass of the material increases, the kinetic energy It also increases, and vice versa.

There is a certain relationship between the size of the broken rock of the vertical shaft impact crusher and the rotor speed of the crusher. Under the premise of the same working condition, if the particle size of the broken material is large, the linear velocity of the crusher rotor is low. It can be seen that the required crushing speed should be increased when the material crushing strength is large or the crushing size is small. In the case of the same particle size, moisture content, and feeding amount of the incoming materials, the crusher rotor speed (line speed) is appropriately increased, and the fine powder production is improved.

Effects of operating parameters and operating factors

Sand making machine performance and structural factors have a great impact on crushing. The type and specification of the sand making machine, economical and reasonable installation power, adjustable speed range, size of the discharge port, and the structure of the crushing chamber all have a great influence on the crushing efficiency. The continuity and uniformity of feeds have a greater impact on crushing. Feeding continuously and evenly can both make production normal and increase productivity. Make reasonable daily maintenance for the equipment and reasonably reserve spare parts and spare parts. The crushing cavity of the vertical shaft impact crusher can be either "stone-like" or "stone-pickling iron". The latter produces higher sand and more fine powder, but due to wear of the iron plate, the probability of iron contamination is increased correspondingly.

By changing the size of the main and driven pulleys, the rotation speed of the impeller can be changed. Increasing the rotation speed can increase the output and increase the amount of fine powder. Changing the form of the inner lining plate within the crushing cavity, or increasing the size of the punching iron counterattack plate and increasing the size of the discharge opening of the crushing chamber can all increase the production volume and increase the amount of fine particles.

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