Great Wall Machinery GGBS Plant with 600,000 t/a Capacity

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In 2009, we invested CNY 50 million to build the GGBFS plant demonstration and training base with capacity 600,000 t/a, the main equipment of which used the biggest self-made GRMS 46.41 vertical mill. The purpose of this plant is to let customer have a direct knowledge on GGBFS process and technology. After running 3 years, the project has recovered total cost of investment.

 

1. Magnetic Separators
A magnetic separator creates strong magnetic attractions with ferrous materials. It is commonly used to remove unwanted iron contaminants from cement mixtures as they are conveyed on a belt conveyor to the crusher and grinding mill. Separating iron from mixtures avoids the risk of long, big iron parts tearing open the conveyor belt, ensures the proper functioning of the crusher and grinder, and improves the grade of raw material. In addition, recovering ferrous metals from raw materials also comes with financial benefits.

Our permanent magnet separator for pipeline is an automatic high-performing magnetic separation device. It is often utilized in cement, electricity, ceramics, bricks and tiles, chemical engineering, food, glass, metallurgy, and steel industries, as a separator of choice when it comes to purifying materials and ensuring the operational safety of the downstream equipment on the production line.

2. Dust Collectors
Air-borne powder enters the rotary separator at its bottom, where guide vanes force the air to change from an upward flow to a tangential flow. The separator rotor tends to rotate along with the air flow without causing any drag to the stream. Hence, a centrifugal zone is formed between the guide vanes and separator vanes, where powder is separated from air.

During separation, larger particles are thrown outward by rotary force of the separator rotor, falling to the bottom of separator due to the force of gravity. After exiting the centrifugal zone, these oversize particles are collected in a conical hopper and returned to the roller mill for further grinding. Finer particles are brought through the center of the separator chamber and out the top, where they are collected by a dust collector.

3. Central Control System
The central control system is a critical part of the production line. It is comprised of the Distributed Control System, and the Closed-Circuit Television which contains 6 monitor circuits.

In a distributed control system, or DCS for short, there are a number of computers, each controlling a separate circuit. Information from each computer can be collected together and obtained by the central controller, which facilitates centralized management and control. Compared with the computer controlled multilevel system, DCS has the advantages of optimized, flexible layout, low cost, high reliability, maximum accessibility, great flexibility, easy maintenance, good compatibility, and comprehensive functionalities.

The closed-circuit television, or CCTV, records images of different production sites, stores them in a hard drive, and sends real-time information to the control center. Authorized staff can view the present state of each production site. In case of emergency, they are able to send men to the site. This prevents potential severe accidents from occurring. Typical functions of CCTV include the following.

Multiple monitor circuits
Video recording
Video search
Video replay
Pan control
Camera lens control

GGBS1.jpg

Analysis

Since the production line went into operation, GGBFS sales increased constantly, and achieved excellent economic benefit. After running 3 years, the project has recovered all investment cost, and began to profit steady. Besides, the greater values of the project purpose on the demonstration effect when customers come to visit, meanwhile it enhances customer’s confidence to the quality of our product and ability of turnkey project, and play an important role in our orders.

Configuration

  • 1,000 t/d Clinker
  • 2,500 t/d Clinker
  • 3,000 t/d Clinker
  • 4,000 t/d Clinker
  • 5,000 t/d Clinker
  • Production Line Equipments

    a. GRMR22.30 Raw Material Vertical Roller Mill

    b. GRMC12.30 Soft Coal Vertical Roller Mill

    c. φ3.2×48 Rotary Kiln

    d. φ3.8×13 Cement Mill

  • Production Line Equipments

    a. GRMR38.41Raw Material Vertical Roller Mill

    b. GRMC20.30Soft Coal Vertical Roller Mill

    c. φ4.0×60 Rotary Kiln

    d. φ4.2×13 Cement Mill (2 Sets)

  • Production Line Equipments

    a. GRMR40.41 Raw Material Vertical Roller Mill

    b. GRMC22.30 Soft Coal Vertical Roller Mill

    c. φ4.2×60 Rotary Kiln

    d. φ4.2×13 Cement Mill (2 Sets)

  • Production Line Equipments

    a. GRMR48.41 Raw Material Vertical Roller Mill

    b. GRMC23.30 Soft Coal Vertical Roller Mill

    c. φ4.5×66 Rotary Kiln

    d. φ4.2×13 Cement Mill (2 Sets)

  • Production Line Equipments

    a. GRMR53.41 Raw Material Vertical Roller Mill

    b. GRMC26.30 Soft Coal Vertical Roller Mill

    c. φ4.8×72 Rotary Kiln

    d. φ4.2×13 Cement Mill (3 Sets)

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