Stone washing machine, also known as sand washing machine, is mainly used to remove impurities (such as dust) from sand products. Because it is mostly washed with water, it is called stone washing machine1. The following is a detailed introduction to stone washing machine:
Classification and working principle
Spiral stone washing machine: The sand and gravel are stirred by the spiral device in the equipment, so that the soil in the sand and gravel is mixed with water and discharged from the flow port on the equipment, thereby achieving the cleaning and screening effect of sand and gravel. The spiral is used to propel the stone to separate the stone from the water and soil18.
Drum stone washing machine: Let the stones collide, rub and roll with each other in the drum as the drum rotates, and spray with high-pressure water guns to achieve the purpose of cleaning. The long washing cylinder allows the material to stay in it for a long time, which can fully and effectively disperse the material completely.
Wheel bucket stone washing machine: A new type of water washing equipment in recent years, it can wash both sand and stone. It uses the rotation of the impeller to drive the sand and stone to roll and stir in the water, and at the same time, it is washed by a water spray device to separate impurities from the sand and stone. It has a wide range of uses and a large social demand. .
Vibration stone washing machine: It uses the vibration force generated by the vibration motor to make the stone constantly jump and roll on the vibrating screen surface, and at the same time, it is washed by a water spray device to wash away impurities such as soil. It is a professional equipment for cleaning large-scale stones, with high output and low water consumption. 1.
Performance characteristics
Good integrity: Except for the finished material stacking belt conveyor, all systems are integrated into an overall framework, which not only ensures the integrity of the equipment but also leaves appropriate maintenance and inspection space, which is convenient for storage or transfer transportation at the construction site12.
High working reliability: The core stone washing system adopts the mixing principle of the mixer. The raw materials are tumbled and pushed by the continuous spiral blades in the mixing drum, and the friction between the materials is strong, so the natural reliability is high12.
Strong economical use: The storage hopper has a large capacity, which enables the loader to reasonably arrange the loading time of the main equipment and the stone washing machine, avoiding the loader from frequently changing positions between different loading points and raw materials, and reducing labor intensity; at the same time, it is equipped with a water tank with automatic clean water compensation and re-rinsing and sludge discharge functions when the finished material leaves the machine12.
Application fields
Construction industry: used in construction sites, prefabrication plants, etc. to clean and screen sand and gravel to meet the specifications of building materials, provide high-quality sand and gravel aggregates for construction projects, and greatly enhance the solidification strength and strong structural strength of cement concrete1.
Road construction: In road construction, it is used to process the stones required for asphalt and concrete to ensure the quality of road paving materials.
Water conservancy projects: It can be used to process the stones required for water conservancy projects such as dams and embankments, improve the quality of stones, and ensure the safety and stability of water conservancy projects.
Mining: It is used for washing minerals such as manganese ore, iron ore, limestone, tungsten ore, tin ore, silica sand ore, etc. Before crushing, re-selection, magnetic separation and flotation operations, eliminate the impact and harm of ore mud on these operations, improve operation efficiency and obtain good separation indicators2.
Operation precautions1
Pre-start inspection: Each lubrication point must be checked to ensure that there is enough grease, the connecting bolts must be tightened, and each spiral blade must also be tightened.
Starting and feeding: After starting the motor, you must wait until it runs normally before you can start to gradually add materials.
Stop sequence: Before stopping operation, you must stop adding materials first, and the motor can be stopped only after all materials in the tank are drained.
Equipment inspection and maintenance: The wear of the spiral of the stone washing machine should be checked regularly and replaced in time to avoid unnecessary losses due to spiral damage.
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