According to the different wear medium and erosion speed of the flue wear pouring material, generally in the duct, elbow and cyclone separator at the construction thickness of 20mm, local wear is serious parts, such as the separator cutting cone bucket, cutting chute, etc., can increase the construction thickness to 30mm or 40mm.If the construction thickness is more than 20mm, it is necessary to weld the isolation rebar on the equipment motherboard first.When the construction thickness is 30mm, 6mm steel bar shall be adopted.When the construction thickness is 40mm, 8mm-10mm steel reinforcement shall be adopted;Then weld the steel mesh on the rebar, stirring and daubing procedures are the same as when the construction thickness is 20mm.
* PHOSCAST Phoscast : Phosphate Bonded Castables * PURPOSE customers using FBC boilers (Particularly underbed feed FBC boilers) for the protection of inbed coils against erosion potential by applying highly abrasive resistant refractory on inbed coils above fuel feed system. BACKGROUND * Two of such actions are providing special alloy studs on inbed coils and applying highly abrasive resistant refractory on the outer bottom loops of inbed Coils which are above the fuel feed nozzles. * GANESHAS has taken number of approaches to identify the key factors affecting erosion rates with an objective to enhance the life of inbed tubes as well as implementing the corrective action to reduce the erosion rates. Phosphate coatings are often used to protect steel parts against rusting and other types of corrosion * Erosion of inbed coils in fluid bed combustor is unavoidable phenomenon however the rate of metal wastage and thus the life of tubes depends on various factors like ash & fuel properties, design of Combustor / feeding system, flue gas velocities operating conditions etc. It has been also observed that maximum erosion prone inbed coils are those which come above fuel feed nozzles and an area of approximately 1 to 1.5 mts around fuel feed systems are badly affected. APPLICATION Phoscast-90 XR can be applied by ramming with wooden mallet having adequately large head @" dia x 5" length x 10â?? Jong handle). The desired lining or repair thickness is built up in several courses while ramming the mass to uniform thickness. Phoscast refractory should never be trawled to obtain smooth surface; ramming only should finish surface. Any excess mass is to be sliced off with trowel edge and then finished by ramming again for bed coil. Tube application of AFBC boiler, the material pasty mass should be finger pressed into the studs of the tube with maximum force. Finish should be given by pressing the hand palm against material applied, using surgical type thin rubber hand gloves.
Lightweight castable has light volume, high compressive strength, acid and acid gas corrosion resistance.Low heat insulation, heat preservation, water absorption rate features, simple construction, is the most ideal construction of alkali resistant parts under high temperature.Good workability, adhesive power is strong, the initial setting time and construction operation time is long, fast growth strength, permeability resistance is strong, do not need to acidification treatment, easy to ensure the masonry mortar joint dense full, can significantly increase the tightness of chimney lining wall, integrity and lined with corrosion resistant ability, high chimney, and the high temperature flue duct lining ideal cementing materials, also can be used in petroleum, chemical industry, non-ferrous metallurgical industry such as acid pool, slot acid engineering, etc.
Low cement series refractory castable refers to the calcium aluminate cement added less than 8% of the castable refractory. The CaO content in the castable is less than 2.5%.Its main products are low cement, ultra-low cement and cement-free refractory castable, with high density, low porosity, high strength, low wear, heat shock and erosion resistance and other characteristics, but also has a strong volume stability and construction water consumption Low profile.According to its material varieties, can be divided into aluminum silicate, mullite quality, corundum, magnesium aluminum, spinel, carbon and silicon carbide and other low-cement series of castables. According to its use, can be divided into blast furnace iron trench refractory castable and steel ladle refractory castable. High temperature resistance, erosion resistance, peeling resistance, thermal shock stability Applicable to large cement kiln decomposition furnace, kiln door cover, rising flue, grate cooler, and other high temperature, alkali corrosion serious parts.
Product Introduction: Energy is an important material basis for human survival and development, since entering the 21st century, energy conservation and emission reduction has become the common goal of the development of countries around the world, insulation materials have been a large number of development and application. 1050 degree high temperature resistant calcium silicate board with low thermal conductivity, light weight, high strength, high temperature resistance and other excellent properties, become one of the most promising thermal insulation materials. Calcium silicate board is mainly made of silicon powder, calcium powder, natural wood pulp by high temperature and high pressure steam curing made of low, medium and high density new environmental protection insulation material. Product features: Calcium silicate board has good fire resistance, high temperature resistance, waterproof, light weight, easy to cut and other properties. Applicable to steel, petrochemical, ceramics, glass, cement, external wall insulation and all kinds of furnace insulation, as well as electric power, machinery, electronics, shipbuilding and other industries of insulation. Calcium silicate is a common substitute for asbestos and is a safe insulating material. Calcium silicate is one of the most widely used fire-resistant materials in Europe. Europeans are more inclined to use calcium silicate as cladding. When smelting metal ores, silica reacts with calcium carbonate to form this substance, forming slag. Product use: Metallurgical industry: heating furnace, holding furnace, annealing furnace, high temperature flue, hot air pipeline. Petrochemical: heating furnace, ethylene cracking furnace, hydrogenation furnace, catalytic cracking furnace, petrochemical heating furnace hot surface lining. Cement industry: rotary kiln, decomposition kiln, preheater, three air pipe, kiln cover, cooling machine, brick, castable spare heat preservation. Ceramic industry: tunnel kiln and tunnel kiln core, plate, ceramic kiln hot surface lining. Glass industry: melting furnace bottom, furnace wall. Power industry: Preheating furnace tubes. Non-ferrous metal industry: electrolyzers. Shipbuilding: Deck finishing. Other: It can also be used in ovens, barbeques, fireplaces, etc.
