how much to invest 600,000 tons of steel slag vertical mill production line?

I. Introduction

Blast furnace slag ( slag) is excluded from the blast furnace pig iron smelting in an industrial waste, due to its high physical and chemical activity and potential hydraulic, widely used as an admixture in the cement industry. Slag grinding equipment commonly use vertical slag mill, mainly by disc, roller, separator, pressing device, consisting of monitoring means, transmission, sprinkler systems, meals outside the circulatory system and other parts of the production process these members cooperate together to complete the production process.

GRMS slag vertical mill set crushing, drying, grinding, separator, transportation as one of the roller sleeve can be used upside down, with a small footprint, simple process, high grinding efficiency, low energy consumption, low noise, bake dry capacity, product fineness is easy to adjust, no dust pollution and convenient maintenance, reliable operation, solid materials are widely used in grinding cement, metallurgy, electric power, chemicals, ceramics, non-metallic mineral industries and ultrafine grinding.

CHAENG(Great Wall Machinery) produced GRMS slag vertical mill output of up to 180t / h, the system power consumption is generally less than 43kWh / t, slag powder finished surface area of up to 4500cm2 / g, can meet the annual output of 30 to 120 tons of slag powder production line project.

Yield: 30,0000 to 120,0000 y/a of nickel slag powder project

Fineness: 4500 ~ 4500cm2 / g

Customer Type: cement plant, grinding plant, steel mills

2, working principle

material falls under the central disc material feed tube, a constant rotational speed of the disc by means of the centrifugal force outward uniformly dispersed raw material, paving, to form a certain thickness of the material bed, the material at the same time by a plurality of roller on the grinding disc pressure, and pulverized. Material to keep the outer edge of the disc movement, leaving the disc material encountered and rise through the air ring into the hot gas within the mill, the mill housing into the central separator in continuous driving under the centrifugal force, in the process materials and hot gas had a full exchange of heat, moisture quickly evaporates. Separator control roll mill outlet fineness greater than a predetermined size particles are separated and fall back to the disc, to meet the requirements of the fineness of the material by selecting the extension into the finished product warehouse.

Product advantages:

After many years of accumulation of technology, Chaeng combined with customer-site experience, continuous improvement and perfection, the Great Wall Machinery Manufacturing licensing slag vertical mill reliable quality, energy saving, benefits are obvious, the majority of customers unanimously recognized as slag vertical mill this new art logo products.

1. Low investment and operation costs

(1) set of crushing, drying, grinding, grading conveyor in one, the system is simple, compact layout, covering about 50% of the milling system, but also open layout, thus reducing a lot of investment costs.

(2)High milling efficiency: roller way grinding disc directly on the ground rolling material, low energy consumption, save energy and grinding system compared to 30% to 40%.

(3) less wear: As the roller does not work in direct contact with the disc and the roller and liner made of high quality material, it has a long life, less wear and tear. Since the hot air in the mill direct contact with the material, strong drying capacity, vertical mill can save a dryer system, saving floor space, but also save energy, and by adjusting the temperature of hot air, the material can easily cope with different humidity .

2. High quality and stability of finished

(1) the material in the mill residence time is short, easy to detect and control the product particle size and chemical composition, reducing the duplication of milling, more stable product quality.

(2) sets of rollers and backing are not in direct contact with the product in very little iron, and the iron contained in mechanical wear and easy to remove for when grinding white or transparent material, product whiteness and high purity.

(3) is provided with means to prevent the roller sleeve and limit direct contact disc liner to avoid the destructive impact and severe vibration, so the quality and stability of the finished played a significant guarantee.

3. The operation and maintenance easier

(1)Equipped with a PLC / DCS automatic control system, which enables remote control, easy to operate.

(2)By overhaul cylinder, turn rotating arm, replace the roller sleeve, convenient linings, reducing downtime.

4. energy-saving environmental pollution

(1)Equipment vibration, low noise.

(2)Equipment integral seal system working under negative pressure, no dust spills, clean environment, to meet the national environmental requirements.