Shandong Shengya Machinery Co., Ltd. specializing in the production of various types of brick, brick machine, brick machine, hollow brick, pavement brick and other equipment of the old brick factory.
    Concrete mixing process tailings cement block:
1. cement brick Equipment stirring step, if well organized, can not only stirred and was uniformly, to avoid excessive dispersion properties, can also pray plasticized and strengthening. Key technology-related mixing machinery mixing quality include selection, stirring flow arrangements, stirring system, feeding seemed like.
Currently, the cement brick for tailings as aggregate and cement bond cement filler bricks, mixing machinery used mainly for forced mixer. When higher learning to teach or content tailings particles, mixing was poor liquidity is compulsory mixer works well, which forced planetary mixer better than the turboprop type forced mixer effect. When dry hard and was stirred, in order to make the full release of tailings mud ball, you can choose round grind mixer or cage mill mixer.
According to the different ways each store of raw materials, cement brick mixing process may take different arrangements. If the aggregate using open yard storage, mixing station can be simple or floor-mobile mixing station, if the aggregate storage compartments keep using, you should use two stage fixed mixing floor.
Studies have shown that feeding sequence cement brick agitation, the mixture was stirred for strength and product quality big impact. In addition to a commonly used feeds, mixing procedures, the use of the following methods can achieve significantly enhanced results.
1. Two water law. Part of coarse aggregate + cement + water (stirring 0.5-1min) - fine aggregate + remaining water (stir until evenly)
This feeding method, cement brick stirred ball mill equivalent role at the start, can further improve the fineness of cement, release tailings mud ball, strength increased by more than 15%.
2. Two feeding method. Fine aggregate + cement + water (stirring 0.25-0.5min) - bold aggregate (stir until evenly).
In this way, the initial no coarse aggregate, easy to stir, cement particles well dispersed, wrapped in fine aggregate surface, coarse aggregate is completely wrapped mortar easy dense. Than the first feeding method can improve the strength of 15%, or 15% -20% savings of cement.
3. Paste wrap aggregate method. Cement + water (stirring 0.5-1min) - bold aggregate (mixing 0.5-1min) - fine aggregate (stir until evenly).
Cement brick stirring the method, aggregate surface covered by a layer of grout wrapped conducive adhesive glue bone interface, can improve product strength by 15% -20%.
4. Wrap cement sand method. Fine aggregate + portion of water (surface moisture content of 15% -20%) - Mortar (mixing 0.5-1min) - coarse aggregate + remaining water (stirring until evenly)
This method can improve the mix of bleeding, stratification and segregation phenomenon, for lower rates of sand mixing materials.
5. pre-hydration method. Cement + water (slowly stirred 3h) - plus a fine aggregate + coarse aggregate (stirring until evenly)
This approach allows the initial setting of cement reached beforehand, then wrap the aggregate surface covered by gel, thus avoiding bleeding cracks, can increase the strength of 50% -60%. Suitable for the preparation of high strength concrete cement brick.
Shandong Shengya Machinery Co., Ltd. has been committed cement products machinery development, production and sale of advanced equipment, superb technical expertise and two decades of experience, the company has always been at the forefront of research and development center block molding machine market development Follow the advanced technology at home and abroad, to develop products for different investment needs of users, mainly block making machine, hydraulic tile machine, cement pipe machine, mixer, hanging roller machine, telephone poles machine equipment. At present the country with 19 offices and six overseas plants (Nigeria, Tanzania, Algeria, Kenya, Mozambique, Ethiopia) and exported more than 100 countries and regions.