Percussive sounds ("banging," "hammering," or "knocking") and vibrations in boiler drums or pipes are serious operational anomalies that demand immediate attention. At ZOZEN, we engineer our coal-fired boilers (like the SZL water-tube and DZL fire-tube series) to minimize these risks, but they can still arise due to operational or system issues. Here are the primary causes and ZOZEN's approach to mitigation:
Common Causes & ZOZEN Solutions:Water Hammer (Steam Condensation Shock):
Cause: Ra...
Question details (Performance):1. High temperature of motor, fast temperature rise.2. Overload, high outlet pressure and frequent safety valve open often.3. The vibration is intensified, the side vibration of the fan motor coupling is large, and the fan body never vibrates to vibration.4. No obvious vibration was found in no-load test of fan motor. Answer: Fault reason:Fan bearing vibration is common fault in the operation, the vibration of the fan will cause damage of bearing and blade, bolt looseness, chassis and wind damage, fan vibration rises abruptly in the operation. this is because when the gas enter impeller and the rotating blade working face has certain angle, according to the principle of fluid mechanics, gas from non-working face must be a spiral blade, so the dust particles in the gas will slowly sedimentation due to vortex. Airfoil blades are very easy to accumulate dust. When the accumulated ash reaches a certain weight, a part of the large amount of accumulated ash wi
1. What is a coal-fired chain grate boiler?A coal-fired chain grate boiler is a type of industrial boiler that uses a chain grate as its combustion equipment. The fuel enters the chain grate through the coal hopper and moves along the grate to undergo combustion. The burnt coal cinder is then discharged at the end of the grate. This type of boiler is widely used in industries such as food, paper, construction, cable, electronics, tobacco, and textile for processes like drying, disinfection, ster...
The importance of a coal-fired chain grate boiler sample is reflected in the following aspects:
Technical and Design Reference: The coal-fired chain grate boiler sample provides engineers and designers with detailed technical parameters and design conditions, including the boiler's basic capacity, environmental conditions, operating pressure, and temperature range, and other key information. This data is crucial for ensuring the rationality and safety of the boiler design.
Performance Evaluati...
In the realm of industrial boilers, economizers play a pivotal role in enhancing efficiency and reducing fuel consumption. Essentially, a boiler economizer captures waste heat from boiler flue gases and uses it to preheat the feedwater before it enters the boiler. This process significantly improves the overall efficiency of the boiler system by reducing the need for the boiler to heat the water from a lower temperature. But, how long can one expect an economizer to last?
Lifespan of Boiler Eco...
Exploring the industrial boiler sector often brings up the question: "How much coal does a 1-ton steam boiler consume annually?" This inquiry not only reflects users' concerns about boiler efficiency but also hints at considerations regarding operational costs. Although the question seems straightforward, it underscores deep concerns about energy utilization efficiency and environmental protection.
Firstly, the annual coal consumption of a "1-ton steam boiler" is a complex calculation influence...
In the whole drying process, we should pay attention to gradually increasing the temperature instead of burning by raging fire; regularly checking boiler's water level and keeping it within the normal range; keeping the flame balanced in the furnace. In addition, we also should properly open the drainage valve and maintain the water level, regularly record the flue gas temperature to control the rise of temperature and high temperature and keep the temperature within the normal range. In general, under these conditions, boiler’s drying quality can be ensured.
The air oxygen content's effect on the boiler is mainly reflected by the effect on the blowing rate. Boiler will have typical phenomena if the blowing rate is high or low.
