This project adopts internationally advanced cement production technology, which will achieve high quality, cleanliness, low consumption, and high yield after being put into operation. The 2 million ton cement grinding project widely promotes high-tech and has advanced technology in the industry. The production process adopts efficient extrusion combined grinding system, DCS distributed automatic control system, large-scale bag filter and other advanced equipment. The main equipment configuration scale is large, the quality control methods and facilities are complete, the quality is stable and reliable, and the product quality can be effectively guaranteed. In the production process, advanced indicators such as low energy consumption and small dust emissions have been achieved. Bring your own loading and unloading dock to ensure convenient and fast loading and unloading of raw materials and delivery of products. Cement products are available in bagged or bulk form and can serve key projects, concrete mixing plants, pipe pile factories, and various industrial and civil construction projects.

1. Design of clinker grinding production line: Gypsum, rotary kiln clinker, and limestone are measured by a belt scale, and the prepared mixture is conveyed by a belt conveyor to a lifting machine and sent to a stable flow weighing bin. During this process, the material is removed of magnetic metals by an iron remover, and then mixed and fed into one of the mills. The extruded material is all passed through a cake lifting machine and enters a dispersing classifier. Coarse materials larger than 2.5mm enter the stable flow weighing bin and are then squeezed together with the mixture in the mill. Fine materials smaller than 2.5mm enter another mill for grinding. The ground material and the measured fly ash are conveyed through a tail conveyor chute to the mixed material lifting machine, and then sent to a K-type internal circulation powder selection machine through a selection powder machine conveyor chute. The coarse powder from the pulverizer is returned to the grinder, while the fine powder is conveyed through an air chute into the finished product elevator and enters the finished product warehouse. After being purified by the dust collector at the tail of the mill, the dust containing gas is discharged into the atmosphere by the exhaust fan, and the collected fine powder is fed into the mixture elevator.
2. Design of slag grinding production line: Gypsum, dry slag, and fly ash are measured by a belt scale, and the prepared mixture is sent to the grinding machine for grinding by a hoist. During this process, the material is removed of magnetic metals by an iron remover, and the ground material is sent to the mixture hoist through a tail conveyor chute. The selected powder machine is divided into two parts and sent to the K-type ultra-fine special high-efficiency powder selector through the conveyor chute. The coarse powder of the powder selector returns to the grinding machine, while the cement product is collected by an air box pulse bag dust collector. The fine powder is sent to the finished product elevator through an air conveyor chute and enters the finished product warehouse. The dust containing gas from the grinding process is selected as the primary air for the K-type ultra-fine high-efficiency powder selection machine, while fresh air is selected as the secondary and tertiary air for the powder selection machine. The dust containing gas is purified by the pulse bag filter in the air box and discharged into the atmosphere through the exhaust fan.
3. Mixing design of slag powder and clinker powder: In the separate grinding production process, in addition to meeting the fineness requirements, it is also necessary to pay attention to accurate measurement and uniform mixing of clinker powder and slag powder. Therefore, we chose a spiral measuring scale as the measuring device and an air conveying chute, which can not only be used as a mixing device but also as a conveying device. The spiral metering scale consists of an overflow single tube spiral and a metering single tube spiral. The former stabilizes the flow and ensures uniform and timely feeding, while the latter measures accurately and stably; The air conveying chute uses the principle of fluidization to transport materials, causing the slag powder and clinker powder to continuously roll and stir during the conveying process.