Masonry method for boiler refractory brick
Furnace wall gas tightness requirements, gray seam fullness requirements: red brick is not less than 85%; refractory brick not less than 90%. When the red brick is built, the method of squeezing is adopted, and the construction of the refractory brick is constructed by scraping.
Ash bucket (including inclined wall masonry):(1) and an ash bucket masonry first according to drawing find horizontal center line, with the horizontal center line to find out the ash bucket longitudinal center line, coarse slag bucket at the outside edge of the straight wall before and after, based on both ends of the facade vertical center line to pop up the bottom of the ash bucket, ash bucket with bottom opening size of pillar, pop-up vertical auxiliary line using triangle pattern production (according to the drawings, the inclination of inclined wall making) inclined wall paintings in the ends of the facade of the sideline. Use the same material to make refractory concrete inclined wall bottom of the triangle from Taiwan (Figure 1) and straight wall leveling, vertical and horizontal, inclined wall at the junction of the triangle from Taiwan, with the same material refractory concrete filling, until the final setting of concrete masonry wall inclined rear can.(2) and an ash bucket masonry masonry masonry, the first transverse longitudinal component after; inclined wall and straight wall, first built after the straight wall masonry wall.(3), on the back of a foundation by inclined wall, brick and mortar foundation contact surface to be full; inclined wall on the back fill cinder, corresponding to the 2~3 layer of brick masonry masonry, each high, fill a cinder cinder, must reinforce.
Masonry of furnace bottom:(1) the bottom shall be leveled before masonry; when the masonry is made, the walls around the bottom shall be first laid, and the height shall be approximately higher than the surface of the hearth. Then the bottom horizontal line (for example, multi layer masonry, together with the layer line) is marked on the straight wall, and then the bottom can be built.(2) when the bottom is made of multi layer bricks, the masonry shall be carried out by layer by layer, and the upper, lower and the same floor shall be staggered. The long side of the surface brick shall be vertical to the direction of the flow of slag or gas.(3) the high temperature area and the furnace bottom which need to be frequently repaired must leave the expansion gap at the bottom of the furnace and the straight wall, and the asbestos rope or asbestos board will be embedded in the gap.
In accordance with the construction procedure of from bottom to top, from the inside to the outside of the drum and the lower part of the principle of convection tube flame plate concrete when the interval is from top to bottom.
