How to determine the output of a slag grinding plant
1. Determination of annual output.
When a company decides to build a slag grinding plant (slag powder production line), it first determines the annual output.
Different industries have different principles for determining annual output.
Take the steel mill as an example: the principle of determining the annual output is the output of iron-making blast furnace water-quenched slag.
For example, a steel plant with an annual output of 1 million tons of water-quenched slag should build a 1.2 million tons slag grinding plant.
At present, the slag grinding vertical mill single-machine production line has reached an annual output of more than 2 million tons. When the annual output of water-quenched slag is below 2 million tons, it is recommended that the steel plant choose a production line.
The larger the single equipment, the higher the output, the lower the corresponding power consumption and heat consumption, the lower the unit consumption of various expenses, and the lower the overall cost, which will undoubtedly increase the market competitive advantage and improve the company's economic benefits.
When building a slag powder production line, a building material company must comprehensively consider the principle of market capacity and the stable supply of raw materials, and reasonably plan the construction scale.
2. Determination of unit output.
The determination of unit output is very important and directly related to equipment selection.
The following factors should be fully considered in equipment selection:
⑴ The slag vertical mill is not a device that can run continuously for a long time. Instead, it will be shut down for repair every 1500 to 1800 hours, usually 7 days each time, 35 days a year.
⑵ consider 2 daily maintenance, inspection and repair every month, 0.5 days each time, 12 days in the whole year, unplanned (full storage, waiting for materials, waiting for energy, etc.) 8 days a year.
⑶ 55 days of shutdown throughout the year, 310 days of operation.
⑷ In cold areas, civil construction will be frozen and suspended in winter, different latitudes and altitudes, the date of freezing is uncertain, high latitudes, high altitude areas. The length can be up to 6 months. The coastal mineral powder production line can still be shipped for export, inland It can only be a winter break.
⑸ The raw material slag can be stored in large quantities for a long time, and the mineral powder cannot be stored for a long time, and there is no way to store it in large quantities. Generally, the storage capacity of the finished product storage is only 7 days.
Considering the above factors comprehensively, eliminating the downtime, rationally calculating the running time, reasonably determining the unit output, and selecting the equipment accordingly.
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