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Large proportion raw materials such as cement can be manually measured and transported through an elevator into the premix bin. Small proportion and valuable master materials such as cellulose and rubber powder can be measured by an electronic scale and then put into the admixture hopper. After being mixed by the mixer, they are automatically packaged by a valve bag packaging machine or an open bag packaging machine. The packaged products are transported to the finished product storage area via a belt conveyor. It has the characteristics of moderate investment, short construction period, and quick return on investment. The equipment investment is generally between 100,000 and 250,000 yuan, and the general output can reach 5-10 tons per hour. 1.3.1 The modular semi-automatic production line mainly consists of raw material storage tanks, screw conveyors, batching hopper elevators, premix bins, small material bins, mixers, finished product bins, packaging machines, dust removal systems, gas phase balance systems, and control systems. Large proportion raw materials such as cement and lime-calcium are automatically measured by a screw conveyor and then transported to the batching scale. Using a hopper elevator, they are lifted to the premix bin. Master materials can be manually measured by an electronic scale and then put into the admixture hopper. After being mixed, they are packaged by the packaging machine and then transported by the conveyor. The equipment investment is generally between 200,000 and 500,000 yuan, and the output can reach 5-10 tons per hour.
