With the continuous promotion of the "double carbon" goal, alternative fuels have become the key path for the carbon reduction transformation of high energy-consuming industries such as cement and electricity. However, in the face of various equipment schemes, how can coal-fired enterprises build an alternative fuel preparation center? The key to the
selection lies in
the equipment OPEX (operating cost) and the quality
of finished products. Recently, Nanjing Lishui Tianshan Cement Alternative Fuel Preparation Center has been successfully completed and put into operation. The project focuses on the energy efficiency demand of cement kiln "cost reduction and carbon reduction", introduces the one-step crushing solution of Sred, integrates the whole process units of fine crushing, intelligent electric control, AI cooperative load shearing, and prepares industrial solid waste into high-standard RDF/AFR alternative fuel with particle size less than 80 mm by only one crusher. Successful realization of low-cost mass production of alternative fuels.
Based on the actual needs
of enterprises, the four dimensions determine the success or failure
of the preparation center. Unlike large-scale production lines of hundreds of tons, the small and medium-sized alternative fuel preparation projects of cement enterprises with a daily output of 50-200 tons have more stringent requirements for site, energy consumption, capacity, operation and maintenance. In the project planning stage, Lishui Tianshan Cement focuses on the four core dimensions of capacity matching, early investment, energy consumption control and operation and maintenance efficiency. So as to avoid the common problems of building factories in the current industry:
(1) "production capacity + raw materials" should be matched with
various sources of raw materials and limited
storage space; (2) initial cost: not only the price
of equipment, site restrictions and power supply conditions are often the "invisible threshold". It is also a large investment cost in the early stage.
③ Energy consumption cost: The electricity cost is a long-term "big item"
, and the electricity cost per ton is always the main part of the production expenditure of alternative fuels.
④ Operation and maintenance efficiency: Time and manpower are also costs
. The frequency and time of equipment maintenance for consumables such as cutting tools are the operation and maintenance costs
that cannot be ignored. An AF preparation center and a crusher are enough
to address the above pain points. Around the "50-200 tons per day alternative fuel application scenario", Sred launched a one-step crushing solution. The scheme focuses on the four dimensions of site, energy consumption, quality and operation and maintenance at the same time, which is just in line with the core demands of cement enterprises to build alternative fuel centers.
1. Core site advantage:
only 100 ㎡, suitable for the reconstruction
of the old plant, the complete crushing system covers an area of only 100 square meters, which is directly reduced by 82% compared with the traditional multi-stage production line with the same capacity. This means:
& >; & >; Old factory buildings can be easily resettled without large-scale demolition and renovation;
Own a small site to build a new project without additional land lease or expansion;
Power supply only needs to match the load of a single equipment, without transformer expansion, the threshold of early landing has been greatly reduced, and the investment in infrastructure and rent has been significantly reduced.
2. Multi-dimensional cost reduction:
TCO (full life cycle cost) is directly reduced by 30%
, energy consumption cost is reduced by 30%: single centralized drive + AI collaborative variable frequency drive, with high torque power system. The equipment can dynamically adjust the crushing strategy according to the real-time parameters such as material hardness and moisture content, and start the intelligent mode of "energy supply on demand". Ineffective idling and overload energy consumption are effectively suppressed, and every kilowatt-hour of electricity is precisely used on the edge of the knife. Implicit reduction of
operation and maintenance cost: Srede one-step crusher greatly simplifies the maintenance process through innovative structures such as outward-opening discharge door, multi-row angle knife design and intelligent overload protection-daily maintenance is more convenient, tool life is longer, downtime is sharply reduced, and continuous and stable operation of the production line is guaranteed.
3. Adapt to a variety of industrial solid wastes:
Reduce the pressure of raw materials and apply alternative fuels
on a large scale. In the face of the current situation of mixed sources of raw materials for alternative fuels in cement enterprises (waste spinning, leather scraps, industrial and commercial wastes, automotive interiors, etc.), the equipment is not only fully adaptable and stable in crushing, It also ensures that the particle size of the discharged material is stable at about 50 mm, which fully meets the standard of cement kiln entry. High-quality and homogeneous RDF/AFR fuel lays a solid foundation for subsequent stable combustion and high calorific value utilization.
A cement plant AFR alternative fuel preparation center only needs a one-step crusher , which is not empty talk. It relies on the lightweight and large-scale alternative fuel production mode with controllable site and power supply investment budget, lower operation cost and stable discharge quality.
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