80,000 tons / year slag grinding production line


Equipment configuration: European version of overpressure V-type mill, screw conveyor, warehouse roof dust collector

Application areas: used in subgrade, filling, concrete admixture, soil modification, cement, asphalt mixing station

Processed materials: bottom slag and fly ash

Equipment highlights: grinding secondary ash, stable production capacity, good environmental performance

Equipment capacity: over 9 tons per hour

Field case introduction:The project is mainly used to process the bottom slag and fly ash discharged from self-provided coal-fired power plants. The processed products can be widely used in roadbed, filling, concrete admixture, soil modification, cement, asphalt mixing station and other fields.

80,000 tons / year slag grinding production line

The project is mainly used to process the bottom slag and fly ash discharged from self-provided coal-fired power plants. The processed products can be widely used in roadbed, filling, concrete admixture, soil modification, cement, asphalt mixing station and other fields. How to choose more advanced, stable and energy-saving grinding and processing equipment determines the economic benefits of the comprehensive utilization of ash and slag projects. Veken Intelligent Mining Machine provided customers with professional technical solutions and rich successful case support during the bidding process of WISCO Group's project, which won the customer's recognition and trust. After the equipment is finally commissioned, the secondary ash is ground, and the hourly output can reach more than 9 tons, which has met the expectations and has been affirmed and praised by customers.

The premise of using fly ash is that the fineness of the material has strict requirements, so it must be ground. The fly ash mill produced by Veken Intelligent Mining Machine combines the advantages of similar products from domestic mill manufacturers. It has the advantages of large output, low energy consumption, high fineness and strong reliability. It saves 40% energy and increases output by 20% compared with products of the same specifications on the market. The newly developed European version of the mill is specialized in fly ash milling. The mill combines years of mill production experience and is an advanced milling equipment designed and developed for use in cement, power, chemical, Non-metallic ore and other industries. Fly ash mill working principle: When the main motor power is decelerated by the gear reducer, when the central shaft and the plum frame fixed on the central shaft are rotated, the grinding roller rotates around the central axis under the action of centrifugal force, and also around the load. The shaft swings in parallel, so that the grinding roller presses the grinding ring parallel to the outside, so as to ensure that the grinding roller and the grinding ring are in maximum contact. At the same time, the grinding roller rotates around the axis of the grinding roller, so that the material scraped by the blade achieves pulverization and grinding. The pulverized powder is sieved by the air flow of the blower to the analysis machine above the main machine for screening. The main machine cavity is reground, and the particle size meets the requirements of the wind and flows into the large cyclone collector. After collection, it is discharged through the powder outlet pipe to become the finished product.

The raw materials stored in the raw material bin are transferred to the milling system by a weighing feeder for milling processing. The ground products are collected in the intermediate bin and then transferred to the existing fine ash warehouse by the positive pressure transfer principle using a bin pump. . The powder-making system is a closed-loop system. After the raw materials are milled, the mixed powder is blown by the wind of the blower, and then sorted by the built-in classifier. The powder that meets the fineness requirements is sent to the cyclone powder collector for separation, and the finished powder falls. It is collected, and the wind is separated from the top of the powder collector, and then returned to the blower for recycling. A part of the gas is purified by a bag filter and discharged into the atmosphere. A cloth bag dust collector is required at the top of the raw material warehouse. The entire system realizes PLC remote control.

This site fully considers the material characteristics of fly ash and furnace bottom slag, and tailor-made energy-efficient, reliable, durable, and intelligent high-performance equipment tailored to customers: large and small rolls are arranged to improve the efficiency of powder selection, which is more suitable for powder Processing and crushing of raw materials to ensure the smooth and reliable operation of the equipment; the rollers and grinding rings are made of special high-chromium materials, and the service life can be several times longer than that of high-violet steel; Pipes are washed out and damaged; frequency conversion control is adopted for the main machine, feeding and powder selection systems to achieve the best energy efficiency of the equipment; pulse dust collectors are used, and dust prevention at each dust point is fully done to meet the first-level environmental protection standards; system This PLC control system is used to realize full automation and remote control.

Device Configuration

  • Intelligent, intelligent manufacturing, intelligent use, committed to becoming your satisfied partner

Tailor-made energy-efficient, reliable, durable, intelligent high-performance equipment tailored to customers: large and few grinding rollers are arranged to improve the efficiency of powder selection, which is more suitable for the processing and crushing of powdery raw materials to ensure the smooth and reliable operation of the equipment; The ring is made of special high-chromium material, and its service life can be extended several times longer than that of high-fidelity steel. The powder outlet pipe and powder collector adopt special wear-resistant treatment to prevent the ash and slag powder from washing the pipeline and causing damage; The system adopts variable frequency control to make the equipment achieve the best energy efficiency. The pulse dust collector is used to fully dust-proof all dust spots to reach the first-level environmental protection standard. The system uses this PLC control system to achieve full automation and remote control.

  • Processed materials

Fly ash is fine ash collected from the flue gas after coal combustion. Fly ash is the main solid waste discharged from coal-fired power plants. Most of the combustibles in coal combustion can be burned in the furnace, while the incombustibles (mainly ash) in the coal powder are mixed in a large amount in the high-temperature flue gas. Due to the extraction of the induced draft fan at the tail of the boiler, the flue gas stream containing a large amount of ash is directed to the furnace tail. As the temperature of the flue gas decreases, a part of the molten fine particles is in a vitreous state due to a certain degree of rapid cooling, thereby having a higher potential activity.

  • Application area

After development, fly ash has been widely used in construction, construction materials, water conservancy and other departments. The way it is used has developed from the past subgrade, filling, concrete admixture, soil modification, etc. to cement raw materials, cement mixed materials, large water conservancy projects, pumped concrete, large-volume concrete products, advanced fillers, etc. Advanced uses. Adding concrete to the concrete saves a lot of cement and fine aggregate; reduces water consumption; improves the workability of the concrete mix; enhances the pumpability of the concrete; reduces the creep of the concrete; reduces the heat of hydration and heat Swellability; improve the impermeability of concrete; increase the modification of concrete.

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