For a long time, the wall plastering materials used in building construction are still mainly traditional lime. The burnt quicklime needs to go through the process of water blasting, spraying, and aging, and then add fiber materials such as hemp knives to mix evenly before construction. Its processes are various, high cost, low strength, large shrinkage, fear of water, and the wall is prone to crack, collapse, bubble, drop and other defects. HCMilling(Guilin Hongcheng), as a manufacturer of compound powder production equipment for building materials, will introduce a production method of compound white powder for building materials with limestone as the main raw material, low cost, high strength and good moisture absorption performance.

The synthetic lime and gypsum putty developed in recent years can be used without adding fiber materials, but the former is made by adding gypsum of equal proportion, with higher cost than the traditional lime, and the wall still cracks. The latter is made by adding several additives in gypsum powder, with high cost, and can be used in higher buildings, which is not suitable for ordinary buildings and civil residences. How to produce building compound powder? Li Yinghai and Li Jing disclosed a production method of composite white powder for construction, which takes limestone as the main raw material, adds a certain amount of coal gangue, or a mixture of silica, aluminum trioxide and coal, and sends it into the shaft kiln to be calcined for 72-120 hours at the temperature of 1100-1200℃, which is the mature material, and then adds an appropriate amount of gypsum powder to the clinker, which is the finished product after grinding. Its raw materials come from a wide range of sources. Coal gangue can be used to turn waste into treasure, and its formula is unique. The product has the dual performance of traditional lime and cement. It has high strength, good water absorption performance and low cost. It does not need to be mixed with fiber materials such as hemp knives. It can be plastered by directly mixing with water. It has strong adhesion, no bubbles or cracks on the wall, and it can also be used by adding pigment for coloring. It is a new building material that replaces traditional lime.

The above methods are calcined in a vertical furnace, and the finished product can be made by grinding the limestone to 170-180 meshes with a vertical roller mill. The process flow is simple, which is conducive to large-scale mechanized production. HCMilling(Guilin Hongcheng), as a manufacturer of building materials powder production equipment, has widely used limestone Raymond mill, limestone vertical roller mill and other building materials powder production equipment in building powder production projects. The processing fineness is adjustable between 80-600 meshes. For the production of building powder, it has the advantages of large output, simple layout and so on. If you have relevant purchase requirements, please contact us for details of the equipment and provide follow information to us:

Raw material name

Product fineness(mesh/μm)

capacity (t/h)