The segmentation of dry mix mortar production line, as well as the changes in the market demand for new products, make us in the design and planning of the production line must take into account the feasibility and convenience of the production of segmented mortar products, that is, automated, clean variety mortar production.
The design of the dry mix production line process is the first concern. Process design first refers to he overall structure of the production line, the tower structure is characterized the measurement of all raw materials ingredients in the mixer to complete;The characteristic of the stage-type production line is that all or part of the metering ingredients of raw materials are completed on the ground or under the mixer, which needs to be raised twice to enter the mixer. The standard tower structure and the compound tower structure are the foundation of the mortar production.Secondly, the processing, feeding and storage of raw materials, as well as the transportation and storage of finished materials are also important contents of process design. Tower and composite tower structure can store a wide variety of raw materials, raw material metering batching without cross-contamination, small energy consumption and high efficiency, sand treatment, metering batching, mixing, finished product system design flexibility, therefore represents the trend of large-scale dry mix mortar production line. The stage production line is not suitable for the production of variety mortar due to cross-contamination of raw materials and low production efficiency.The screening and grading storage of sand is the precondition for the production of various kinds of mortar as well as the production of high-quality mortar.The particle size range and gradation distribution of sand play a decisive role in the performance and quality of most dry mix mortar products. Almost all the reference starting formulations of dry mix mortar have made clear requirements on the particle size range of sand, such as 0-0.3mm, 0-0.6mm, 0-1.2mm, 0-2.4mm, etc., and the gradation distribution in each particle size range also has technical requirements. Probability swaying sieve, sieve is commonly used in dry mortar production line of two kind of screening machine, how to choose according to demand of product diversity of the specifications of the screening machine, screen mesh, and tie-in combination, capacity, how to achieve the required particle size range according to the formula technical requirements of sand and obtain the reasonable gradation distribution is the core content of sand production line processing system design. The sand requirement of mortar products and the design of sand treatment system determine the quantity and specification of sand bin in the production line. The metering system is the basis of realizing variety mortar production according to different formula.5 key elements of the measurement system: the measurement method, stability, range, accuracy and speed suitable for the characteristics of raw materials.In the dry mix mortar production line with simple design, sand generally adopts sliding pipe to complete the batching, powder batching and conformant additive batching with common conveying screw, which has limited adaptability to raw materials, thus has low stability and accuracy, and cannot meet the quality requirements of mortar production. Mixing system design and configuration depends on the formula and raw materials to be produced, as well as the performance of the mixer itself.The mixing capacity of the mixer depends only on the mixing principle and technology, and the mixing time and wireless relationship. If there are trace additives, fibers, pigments, emulsions, light aggregates and other powder with poor fluidity in the formula, the performance of the mixer is required to be higher and frequency conversion control is required. The design of a hybrid system with two or more hosts generally depends on the ratio of production capacity between sand free and sand free products, and the ratio between white and colored products.
Many systems in the dry mix mortar production line have different functions, each system link needs to consider many factors ensure that the configuration requirements of the mortar production line are met.