3 factors that cause low sand output of sand making machine

2021-05-18

The output of the sand making machine may be reduced due to many reasons. It may be a malfunction of the equipment, or it may be affected by factors such as the hardness, humidity, and fineness of the finished sand. The hardness, viscosity, humidity, etc. of different materials will have a certain degree Differences, the amount of sand produced by the sand making machine during crushing will vary depending on the material being crushed. Details are as follows:

1. Material difference

The viscosity of the material
The greater the viscosity of the material, the easier it is to adhere. The material with high viscosity will adhere to the inner wall of the sand making chamber in the sand making machine. If it cannot be cleaned in time, it will seriously affect the work efficiency of the sand making machine, and even affect the normal operation of the sand making machine. Therefore, when selecting materials, we must pay attention to the viscosity of the materials not too large.

 Material composition
The more fine powder contained in the material, the more it will affect the sand making, because these fine powders are easy to adhere to affect the transportation. Therefore, the material with a large amount of fine powder should be screened in advance, and the fine powder should be screened out from the material as much as possible, so as not to affect the work of the sand making machine.

Material humidity

When the material is crushed in the sand making machine, if the water content of the material is high, it is easy to stick, and it is also easy to block during the feeding and conveying process, resulting in a decrease in the output of the sand making machine. First of all, when selecting materials, the humidity of the materials must be strictly controlled. If the humidity of the materials is too high, sunshine or air drying can be used to reduce the moisture in the materials.

Material hardness
The harder the material, the more difficult it is to make sand, and the more serious the wear on the equipment. This indicates that the material with moderate hardness should be selected when selecting materials.

2. The fineness of the finished sand is different

The higher the fineness requirement, that is, the finer the finished material is required, the smaller the sand making capacity. This is related to the needs of users. Generally, the fineness of the material is medium and fine.

3. The influence of impeller speed on the output of sand making machine

Continuous materials enter the high-speed rotating impeller, and after acceleration, a continuous flow of power is formed, which produces high-speed extrusion, grinding and crushing in the vortex cavity to obtain continuous crushing production. From the working principle of the vertical shaft impact crusher, when the particle size of the material is determined, the kinetic energy increases greatly as the linear velocity of the crusher rotor increases; when the linear velocity of the crusher rotor is constant, if the mass of the material increases, the kinetic energy It also increases, and vice versa.

Under the same working conditions, if the particle size of the crushed material is large, the linear velocity of the crusher rotor will be low. It can be seen that when the crushing strength of the material is large or the crushing particle size is small, the required crushing speed must be increased. In the case of the same material particle size, moisture content, and feed rate, the rotor speed (linear speed) of the crusher is appropriately increased to increase the output of fine powder.