Technical scheme of refractory for refuse incinerator
Refractory technical index1. Physical and chemical indexes of graphite brickThe volume density (g/m3 = 1.6)The compressive strength (Mpa = 23)Apparent porosity is less than 21Ash% less than or equal to 0.5The thermal conductivity at room temperature (W/M.K = 45)200 c = 43600 C = 40800 C = 352, N-4 clay brick physical and chemical indexesRefractoriness 1690Load softening temperature of more than 1300 startThe change of reheating line is%1350 DEG C * 2H - 0.5 to +0.2Apparent porosity is less than 24The compressive strength (Mpa = 20)
The equipment shall be subject to the construction of refractory materials after acceptance by the relevant personnel.The furnace body is divided into two parts: the construction of a refractory material are respectively first half brick masonry, steel shell near the first building refractory clay brick masonry to both sides from the middle to the lowest height semicircle, clay brick masonry completed all started after graphite brick masonry, also to the semicircle; after the completion of the second half part of all the brick masonry, began laying it on the semicircle: first set semicircular pattern suggested pattern width is 1 ~ 2 brick masonry first width, graphite brick, clay brick masonry and masonry, from both sides to the middle, laying a piece of graphite brick masonry clay brick.
Design of refractory for incineratorAccording to the condition of incinerator, the requirements of refractory, the temperature of each part and the temperature of outer wall of shell are discussed. The scheme for using refractory materials is as follows:The furnace body is made of two layers of structure, that is, 114mm thick clay brick is built near the steel shell, and the lining is made of 134mm thick graphite brick.
Incinerator conditions and requirements for refractory lining1, working conditions: deal with rare earth, furnace body normal use temperature of 800~900 degrees.2, the specific requirement for refractory: refractory has good resistance to acid corrosion, thermal shock performance good stability and good high temperature.
