Granulating slag micropowder saves energy and reduces emissions

2022-06-08 14:31

Granulating slag is a granulated foam-shaped slag formed by the rapid cooling of blast furnace slag in the high temperature melting state and granulating. Granulating slag, replacing one ton of Portland cement in an equivalent amount, will reduce carbon emissions by 0.77 tons, and the comprehensive emissions will be less than 10% of cement. Due to its low cost and high performance, slag micro powder has brought considerable economic benefits to customers. The backbone behind it is the Guilin Hongcheng Milling Equipment - HLM Roller Mill.

Newscast

Recently, the granulating slag micro powder preparation production line built by Guilin Hongcheng has been installed! The main equipment of this production line is HLM series granulating slag roller mill, which was designed and constructed by Guilin Hongcheng according to local conditions and rationally coordinated arrangements. This production line has scientific and reasonable design, compact layout, intelligent and environmental protection, and truly makes customers feel the economic benefits brought by new energy-efficient equipment and new technologies!

Project Overview

1. Processing material: granulating slag

2. Finished particle size: 420㎡/kg

3. Single production capacity: 50±5t/h

4. Equipment used: HLM2800 roller mill

5. Finished product use: cement mixture

Customer site

Granulating slag milling process

1. Drying of raw materials

After the granulating slag is dried and the humidity is within 15%, it can reach the moisture requirement of the material that can enter the mill.

2. Grinding

The dried granulating slag is sent to the storage hopper by the elevator, and then sent to the grinding chamber of the mill evenly and quantitatively by the feeder for grinding.

3. Grading

The pulverized materials are classified by the classification system, and the unqualified powders are classified by the classifier and then returned to the main engine for re-grinding.

4. Collection of finished products

The powder that meets the fineness enters the dust collector through the pipeline with the air flow for separation and collection, and the collected finished powder is sent to the finished product silo by the conveying device through the discharge port, and then uniformly packed by a powder tanker or an automatic baler.

　　HLM roller mill production process flow chart

Technical advantages

	Integrated design, one machine for multiple purposes
	It integrates crushing, drying, grinding, grading and conveying, with compact layout and small footprint; it can be applied to the grinding of non-metallic ores, pulverized coal, slag, raw cement, clinker, etc.

	High grinding efficiency and good discharge quality
	The special structure design of the grinding roller and the grinding disc is adopted. The grinding roller adopts the hydraulic automatic pressure device, which has a larger grinding area and high grinding efficiency; the finished product has a uniform particle size distribution, and the finished powder has good quality, good fluidity and high activity.

	Easy maintenance and high degree of automation
	The PLC automatic control system can realize remote control, reduce the workload of staff, improve work efficiency and reduce maintenance costs.

Strong drying capacity, energy saving and environmental protection

The roller mill can be directly ventilated with hot air, and the hot air directly contacts the material in the mill. The drying capacity is strong, and the moisture content of the feed material can reach up to 15%. The whole system has small vibration and low noise. The whole system is sealed and operated under full negative pressure, and there is no dust spillage. Basically, a dust-free workshop can be realized.

Hongcheng strength

Since 1991, after more than 30 years of steady development, Guilin Hongcheng has been certified as a national high-tech enterprise, and has been in the forefront of the powder equipment manufacturing industry. It has passed ISO9001:2015 quality management system certification, EU CE certification, etc. The equipment with high technology content, high reliability and low maintenance and use cost benefits more and more customers at home and abroad.