Time enters May, and the temperature rises. Recently, the temperature in many parts of the country has reached more than 30℃. The continuous high temperature environment will bring many difficulties to the use of crushers and other mining equipment.Moreover, rainy and humid summers will also affect the service life of mining equipment.So, are there any measures that can reduce the impact of high temperature on the equipment and ensure the normal production of the equipment?
In a high temperature environment, the temperature of the crusher itself will increase, which is prone to unpredictable anomalies, such as sudden shutdown, sudden spindle fracture and other failures.
Because of the principle of thermal expansion and cold shrinkage, high temperature will cause the parts of the crusher to expand, resulting in more friction and deviation at the bite of each part, which will not only affect the production progress, friction will also further increase the temperature.
The high temperature environment will increase the oil temperature of the crusher lubricating oil, decrease the oiliness and viscosity, and destroy the oil film. The lubrication effect between the parts and the bearing bearing capacity will be reduced. What’s more, the lubricating oil will be carbonized and tiles will be burned.
High temperature has certain hazards to the engines, hydraulic systems, circuits, etc. of crushing machinery in mining equipment.In the high temperature environment of the hydraulic system, there will often be failures such as burst pipes, oil leakage from joints, solenoid valve coils burned out, hydraulic valves stuck, and loud noise.Systems that use accumulators may cause damage to the accumulator due to the high temperature of the hydraulic oil.Circuits that age in summer will be more likely to crack the outer skin due to the thermal expansion and contraction of the metal, causing short-circuit failures.The electrical components in the control cabinet are also prone to failure during the high temperature season, and key control components such as industrial control computers and PLCs may also have failures such as crashes, slow operation, and control failures.
Working for a long time at high temperatures will cause the performance of the equipment lubrication system to deteriorate, the oil is easy to deteriorate, and the chassis and other transmission systems are easy to wear. At the same time, it will affect the appearance of the paint layer, the brake system, the clutch, the throttle control system, and the metal structure.It is also manifested in: it is easy to produce air resistance, resulting in the inability to supply oil.High temperature will reduce the performance of the engine intake system, reduce the sealing, and increase fuel consumption due to engine oil leakage.
At high temperature, how can the crusher achieve normal production?
In the hot summer, how to reduce the impact of the high temperature environment on the crusher and maintain the normal production of the equipment?To achieve normal production of the crusher at high temperature, you can start from the following points：
- Do a good job in the daily maintenance of crusher equipment.Regularly inspect the equipment, replace the grease, adjust the belt, and check the core parts and wear-resistant parts. The operator should always check the value on the thermometer during work, stop and inspect immediately if a problem is found, and immediately eliminate the fault if it is found.For those who cannot find the reason for a while, the crusher must not be left to work with illness without treatment.
- Clean up the oil and dust from the motor fuselage in time to ensure that the engine maintains good heat dissipation.Although some equipment is now equipped with dust-proof systems, which reduces the probability of downtime due to dust, the dust problem will become more serious in summer due to high temperatures and dry air.For example, the fixing bolts of the dust-proof sealing slip ring should be checked regularly to prevent the dust-proof seal and slip ring from falling off, causing a large amount of dust and mineral sand to enter the body, causing the crusher to be scrapped or major economic losses.
- Replace the appropriate oil viscosity grade for the equipment. Generally, the oil viscosity grade in summer is higher than at other times.Motor oil and lubricating oil everywhere need to be replaced with summer oil. The amount of oil is appropriate. Check frequently for oil spills, and the fuel should be replenished in time.
- Check whether the cooling system and fuel system are unobstructed, and replace the aging wires, plugs, oil pipes, screws, and tighten the fuel lines to prevent fuel leakage.
- During the operation of the crusher, always pay attention to the temperature of the crusher bearing. Under normal working conditions, the bearing temperature rise should be within the range of 35 degrees and should not exceed 70 degrees.The bearings are kept in good lubrication condition, and pay attention to the sound and vibration for abnormalities.
- Regardless of whether the equipment is in shutdown or working condition, place the equipment in a cool place as much as possible, such as setting up temporary awnings and sun protection nets for the equipment to avoid prolonged exposure to the sun, which will cause the equipment to age and affect work quality and work efficiency.
- The environment of the indoor equipment is good. Set it in a place with good ventilation. At the same time, pay attention to adjusting the indoor temperature and the ventilation and breathability of the surrounding environment. The temperature does not exceed 40 degrees to provide a good working environment for the crusher.
Under high temperature conditions, the crusher is more prone to failure during use. Therefore, more attention should be paid to the maintenance and repair of the crusher, and major troubleshooting should be in the bud to ensure the normal operation of production while ensuring the personal safety of equipment operators.