Boiler spray

       Boiler spraying, thermal spraying, supersonic arc spraying, boiler heating surface anti-wear and anti-corrosion, boiler water wall anti-wear spray, deflector anti-wear, anti-wear plate installation, longitude and latitude anti-wear, grille anti-wear, CFB boiler anti-wear technology

Shandong Shenteng Boiler Anti-wear Technology Co., Ltd. The main working principle of the diversion and anti-wear technology of the water-cooled wall Effective dredging can change the flow direction of the material to reduce the flow rate of the material flow, isolate the high-speed collision between the material flow and the water-cooled wall, and greatly reduce the cutting wear of the material particles on the water-cooled wall, thereby fundamentally solving the water-cooling wall tube wear problem. ★Characteristics of the new technology of deflector and anti-wear ①The essence of the new technology of deflector is to dredge the particle materials in the furnace to form an internal circulation, change the flow direction of the material face wall and the eddy current direction of the material particles in the four corners of the chamber, so that the material flow tends to flow. In the center, avoid collision with the water cooling wall, so as to radically eliminate the contact wear of the surface wall flow angle eddy current on the water cooling wall. ② The deflector used in the diversion and anti-wear technology is a high-temperature and wear-resistant multi-element alloy casting. The maximum temperature can reach 1250℃, and the tensile strength is ≥560Mpa. Process, from the material to ensure that the service life of the process is more than 6 years. ③ The deflector is mainly installed in the dense phase area around the furnace. Because it is made of metal, it can enhance the heat conduction to a certain extent, so it will not have any negative impact on the load capacity of the boiler. ④ The deflector can effectively destroy the eddy current formed by the material flow at the uneven tube wall, reduce the collision between the material particles and the water wall, avoid the wear of the water wall tube by the solid material, and protect the water wall. ⑤The deflector is installed around the furnace in layers, which can effectively reduce the falling speed of material particles along the water-cooled wall tube, isolate the contact between the material flow and the water-cooled wall tube, and fundamentally solve the problem of wear of the water-cooled wall tube. ⑥ Easy installation and short construction period. Taking the 240-ton boiler as an example, the construction period only takes 3 days. The new anti-wear technology of dredging type water-cooling wall has been adopted by many power plants. The operation practice shows that the wear of the water-cooling wall is significantly reduced after the deflector is installed, and the wear of the water-cooling wall pipe for 2 years of continuous operation does not exceed 0.1mm, especially in the transition zone of the castable. If any other anti-wear measures are adopted, the trouble of shutting down the boiler will not be caused by the wear and leakage of the water-cooled wall, so that the circulating fluidized bed boiler will be transferred from frequent unplanned downtime to a good state of continuous and safe operation. The furnace with the deformation of the water-cooled wall tube caused by drying the pot can also achieve the anti-wear effect after reasonable installation and use. Shandong Shenteng Anticorrosion Engineering Co., Ltd. CFB boiler water wall tube wear is a bottleneck restricting the safe and economical operation of CFB boilers. Through practice, we adopt the "draining" type anti-wear process, and install high-temperature wear-resistant combs. The plate deflector reduces the terminal velocity of material particles falling along the water-cooled wall tube, and isolates the material flow from the water-cooled wall tube.