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Sand Washing Machine Precautions: From Installation to Operation

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Published time：06 December 2024

Sand washing machines are indispensable and important equipment for producing sand and gravel, which can effectively remove the mud, soil, and other impurities on the surface of mechanism sand and easily improve the quality of mechanism sand. The sand washing machine is widely used in mining, construction, chemical, coal, and other industries, mainly wheel-type and spiral sand washing machines. Before the sand washing machine is put into production, it needs to go through installation, commissioning, and operation. This article will share the different precautions of sand washing machines in these stages.

 

Sand Washing Machine Installation

 

Installation Site Requirements

  • Power supply: The sand washing machine is a device that requires power to start, and the power of the device is large, therefore, the choice of site should be considered around whether there is a stable power supply, but also try to shorten the transmission lines, if possible, try to use the power grid power supply.
  • Water supply: The sand washer is a kind of water sand washing equipment, thus work is inseparable from the water. When selecting an installation site, try to locate it close to a water source while ensuring water quality and quantity requirements.
  • Transportation: In order to facilitate the sale of finished sand after washing, the traffic around the sand washer is also very important. Choose a site connected to the road. If water transportation is used, choose a site near an existing dock or a location that is convenient for building a new dock.
  • Safety: For the safety of the sand washing machine installation site, try to choose a site with better engineering geological conditions, avoid construction on faults, landslides, and flood levels, and avoid bad areas or cultural relics protection such as silt, humus, ancient wells, etc.

 

sand washing machine
sand washing machine

 

Preparation Before Installation of Sand Washing Machine

Before installing the sand washing machine, to ensure that the installation goes smoothly and the equipment can run normally and efficiently, it is necessary to make sufficient preparations. The following 2 items are the matters that need to be prepared before the installation of the sand washing machine.

  1. Check the parts: Before installing the sand washing machine, you need to check whether the parts of the sand washer are complete according to the instructions, and then confirm that the installation is correct before installation.
  2. Installation of concrete foundation: According to the specific conditions of the sand production line, the foundation construction plan of the sand washing machine is designed and the sand washing machine is fixed on a solid concrete foundation.

 

Installation Precautions

  • The equipment should be installed on a horizontal concrete foundation fixed with foot bolts.
  • When installing, please pay attention to the verticality of the main body and the level.
  • When installing, make sure the pulley and motor pulley are parallel. The motor is mounted on the guide rail so that the belt tightness can be easily adjusted.
  • When installing the sand washer, please make sure the proper tilt angle is according to the requirement of the installation drawing.
  • Check whether the bolts of each part are loose after installation, if so, please tighten them.
  • Configure the power line and control switch according to the power of the equipment.
  • Check out and carry out the empty load test run, and the production can be carried out if the test run is normal.

 

spiral-sand-washing-machine

Run and Debug 

Before starting the sand washing machine, it is necessary to carry out a trial operation and let the sand washing machine idle before load operation.

Sand washing machine idle running debugging precautions

  • After starting the motor of the sand washing machine, it should run smoothly without abnormal vibration.
  • The bearing temperature of the sand washer should not exceed 35℃.
  • The no-load running time of the sand washer should be within 2-4 hours, check whether the connection of the sand washer is loose, and adjust it if necessary.

 

Precautions for load operation and commissioning of sand washing machine

  • Conduct load operation tests under good no-load operation conditions.
  • The sand washer should be stable when running under load, and there should be no abnormal vibration.
  • The maximum temperature rise of the sand washer bearing should not exceed 40℃.
  • It is better not to let dust enter the sealing ring of the sand washing machine.
  • Check the actual power of the motor to ensure that there are no abnormal fluctuations.
  • During the load operation test, the sand washer should work continuously for 5-6 hours. After confirming the correctness, it will be officially put into operation.

 

Things to Check Before Starting The Sand Washing Machine

Before starting the sand washer, you must check the following points:

  1. Whether the transmission system of the sand washer is running normally and the variable speed is complete.
  2. The sand washer’s operating system is sensitive and reliable.
  3. The sand washing machine lubrication system, whether the device is complete, the pipeline is complete, and the oil circuit is smooth.
  4. The sand washer’s electrical system is reliable and sensitive performance.
  5. Whether the sliding parts of the sand washing machine are running normally, the sliding parts have no serious pull, research, bruises, and crack damage.

 

7 ways to improve sand washing efficiency What to do if the sand washing machine has a poor cleaning effect? The efficiency of a sand washing machine is low, how to increase production capacity? How to deal with the frequent failure of sand washing machines that affects production? Our sales and engineering team has received a lot of questions about those questions related to efficiency and productivity from buyers and customers, so in this article, we're going to share 7 ways to improve efficiency of sand washing machines like the wheel sand washer or spiral sand washer. Prevent debris from entering the charging port The cleanliness and mud content of sand are one of the reasons for the decline in the output of sand washing machines. During the cleaning process of the sand washer, it is necessary to prevent impurities from affecting the cleaning effect of the finished product. In addition, it is necessary to prevent materials with high hardness from entering the inside of the machine, which will cause wear to the equipment and reduce the service life. Control the liquid level of the sand washing machine reasonably If the liquid level is too low, the cleaning effect cannot be achieved; while the liquid level is too high, water resources are wasted, but the ideal cleaning effect is not achieved, and the ore is likely to overflow. The amount of materials for one-time cleaning must be within the specified range, otherwise it is prone to failure. Adjust the concentration to the critical value Ore concentration is the main factor that needs to be adjusted during the operation of the sand washing machine. It is related to the graded particle size and also related to the processing capacity under this particle size. The processing capacity of the sand washing machine reaches the maximum under the critical concentration. The critical concentration is related to the specified graded particle size and changes with the density of the ore and the mud content. The higher the ore density or the lower the mud content, the higher the critical concentration, and vice versa Of course, the relationship between the critical concentration and the graded particle size is the same as the mud content, that is, the lower the graded particle size, the smaller the critical concentration. Clarify sand and gravel properties The production capacity of the sand washing machine is related to the properties of sand and gravel, including the hardness, density, mud content, particle size of the sand and gravel materials. For example, the uneven sand and gravel materials and their own different attributes may affect the processing capacity of the sand washing equipment. The density of the material is directly proportional to the production capacity of the sand washing machine. The influence of mud content and ore size is mainly reflected in the viscosity of the slurry, which reduces the viscosity and increases the sedimentation speed of mineral particles. The processing capacity and classification accuracy of the sand washing machine will be better. Make sure the installation location is appropriate The sand washer should be placed in a suitable location, it can be placed on a flat ground, or placed at a high place, but the plane must be hard enough, and it must not be placed close to the water source. These places are prone to collapse. Cause unnecessary production troubles. In addition, there must be sufficient production space to ensure stable material transportation and production, and sufficient storage space for machine-made sand after cleaning to avoid secondary pollution. The operators should be properly trained According to our research, more than 60% of low or affected production capacity may be caused by the error or Illegal operation. Poor technical level will affect the normal operation of the equipment, and will greatly reduce the production efficiency of the sand washing machine. In some cases, those wrong operations may even break the equipment. Daily inspection Before the machine runs, checking the equipment carefully is highly recommended. This rule is not only suitable for sand wash machines, but also for all kinds of equipment. Here are some aspects you should checked before run the sand washer: Check whether there are residual impurities in the bucket, discharge port, water storage tank, etc. of the equipment. If necessary, remove them immediately. Make sure that the passage of each component is unobstructed and clean. Check the firmness of the equipment connection anchor bolts, take firm measures for loose bolts, and ensure the stability of the connection of the equipment components, especially the tightness of the screws. The oil quantity of the reducer should be checked in time during operation, and the gear transmission of the equipment should be kept in good gear to ensure that the gear transmission belt is not worn or damaged. The feeding of equipment should be ensured continuously and evenly, and it should not be too much or too little, which will result in insufficient material cleaning. Each rotating bearing and reducer should ensure that the lubricant is sufficient and clean. At the same time, it is necessary to select a suitable lubricant to increase it. The lubricant of the reducer should be replaced on time after one month of use. The process must ensure the cleanliness of the equipment bearings and adding pipes to prevent contamination of the lubricant. The sand washing machine should be cleaned in time after use, otherwise the pipeline will be blocked after a long time. Regularly observe the internal wear and tear of the sand washer. If parts are found to be worn to affect production and operation, they must be repaired or replaced in time. In the long-term production and operation process, the sand washing machine will affect the sand washing effect and efficiency due to various problems. If you also encounter this problem in future production, you may wish to check the above 7 aspects to find the right cause and prescribe the right medicine. We hope those methods will help you when you meet those situations.

Operating Precautions

  1. Before starting the sand washing machine, the drainage hole should be checked to see if there is debris in the drainage hole, if so, it needs to be cleaned in time to avoid malfunctions due to blockage of foreign objects.
  2. Check the fasteners to see if they have been tightened to avoid loosening the machine damage.
  3. Check the equipment lubricating oil to see if it reaches the height, if not, fill it up.
  4. Belt inspection is also very important, if there is damage to the phenomenon must be replaced promptly, if it is not cleaned, there are oil stains in time to clean up.
  5. Check whether the protection device is intact. If any unsafe phenomenon is found, it should be eliminated in time.
  6. In the test run, if there is any abnormal situation found must immediately stop working, check the machine, find out the reason and repair, and make sure there is no problem after starting.
  7. The sand washer can be started with no load.  
  8. When the sand washer starts to work, the water washing pipe should be opened first, and then added materials, in order to effectively wash the sand and keep the proper water surface, the jet direction of the water should be adjusted, and the height of the overflow baffle also needs to be adjusted, the amount of water is required to be moderate and the sand will not overflow along the seam. When feeding the material should be added evenly, do not add too much or too little at one time, in order to ensure the normal operation of the machine at the same time also need to ensure the output.
  9. When stopping the sand washing machine, the steps should be performed in sequence. It is forbidden to stop the sand washing machine while it is washing sand or continue to add materials after stopping.

 

Installation, commissioning, and operation precautions of the sand washing machine are crucial to ensure normal operation and prolong the service life of the equipment. By following these precautions and recommendations, you can ensure the normal operation of the sand washing machine, improve production efficiency, and extend the service life of the equipment.

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