A method for transporting and processing high-grade sulfur-containing copper concentrate

By controlling the fineness of copper concentrate, adding flame retardant and packaging with double-layer airtight ton bags, combined with nitrogen filling, the problems of spontaneous combustion and plate bonding during transportation of high-grade sulfur-containing copper concentrate are solved, which improves transportation safety and reduces processing costs.

CN116287677BActive Publication Date: 2025-03-25CHINA RAILWAY CONSTR TONGGUAN INVESTMENT CO LTD
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Patent Information

Application Number
CN202310210766.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-03-07
Publication Date
2025-03-25
Estimated Expiration
2043-03-07

AI Technical Summary

Technical Problem

High-grade sulfur-containing copper concentrate is prone to spontaneous combustion and plate bonding during transportation, which affects transportation safety and increases treatment costs.

Method used

By strictly controlling the fineness of copper concentrate, adding flame retardant and packaging using a double-layer air-impermeable ton bag, combined with nitrogen tonne to isolate the air and reduce the risk of spontaneous combustion.

Benefits of technology

It effectively reduces the frequency of spontaneous combustion and plate bonding of copper concentrate, improves transportation safety, and reduces subsequent processing costs.

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Abstract

The present invention relates to the field of copper concentrate transportation technology, and in particular to a transportation and processing method for high-grade sulfur-containing copper concentrate. The method comprises the following steps: S1. Grinding the copper concentrate until the ore particles with a fineness of less than or equal to 44 μm account for more than 60% of the total mineral volume ratio, and then sending it to a thickener for concentration; S2. After concentration, adding 500g / t of flame retardant to the copper concentrate and stirring evenly; S3. After stirring, the copper concentrate is filtered in a filter press, and then packed into a ton bag; the ton bag is a double-layer airtight ton bag with a sealed plastic liner, and the ton bag is filled with nitrogen before use. By adding a flame retardant to the copper concentrate, the ignition point of the copper concentrate is increased, and the copper concentrate packaging is changed from the existing single-layer air-permeable ton bag to a double-layer airtight ton bag with a plastic liner, the copper concentrate is isolated from the air, and the two measures simultaneously reduce the risk of spontaneous combustion of the copper concentrate and improve the transportation safety of the copper concentrate.
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