Novel technics of cassiterite clay flotation

Abstract

The present invention relates to fine-grained and fine-grained cassiterite recovery technology. The process is as follows: in the whole production process, all fine-grained ore pulps are classified centrally, dehydrated and stabilized into full-grained cassiterite flotation, and floated under the action of an appropriate amount of medicaments. Cassiterite with different particle sizes is selected, and the cassiterite with the highest efficiency is floated out of the coarse concentrate and then dispersed and dehydrated, while the cassiterite exceeding the upper limit of the flotation particle size enters the next operation-shaking table recovery; the dispersed and dehydrated sand settling enters the dispersion process. Flotation, after the tin concentrate is produced, the final tin concentrate is obtained by precipitation and dehydration.

Description

technical field

[0001] The invention relates to a mineral processing technology, in particular to a novel mineral processing technology for recovering cassiterite in primary and secondary ore slimes of tin metal mines. Background technique

[0002] The Dachang ore field in Guangxi is a polymetallic sulfide ore dominated by cassiterite, with many types of ore, ore composition and ore properties. Therefore, the content of cassiterite in the fine-grained and micro-fine-grained pulp produced after entering the concentrator is large, and the effective recovery and treatment of this part of the pulp has become a major problem in the mineral processing work. In the past few years, the attached figure 1 (see attached figure 1 ) shown in the technological process, the process technology is briefly described as follows:

[0003] All the primary and secondary slimes enter the 6-meter thickener after concentration and dehydration, and the overflow of the 6-meter thickener enters the t...

Examples

Embodiment 1

[0047] After the fine-grained tin pulp is classified, it enters the Φ6m thickener after dehydration. The function of the Φ6m thickener is to partially precipitate and dehydrate and buffer and stabilize the ore feeding, creating conditions for uniform ore feeding in subsequent operations. The sand settling of the Φ6m thickener Enter the flotation operation for whole grain flotation. The floating tin process is carried out in two steps. In the first step, the full-grain grade of the Φ6 meter thickener with a tin content of 0.5% enters the flotation. The 0.4% tailings enter the first and second screening, and the final tailings with a tin content of less than 0.2% are produced and enter the shaker system for scanning and recovery; the concentrates of full-size roughing I and roughing II Merge and carry out full-size selection I. In the full-size flotation process, an appropriate amount of regulator sodium carbonate or sodium humate is added, with a weight concentration of 1-2%, a...

Embodiment 2

[0049] After the fine-grained tin pulp is classified, it enters the Φ6m thickener after dehydration. The function of the Φ6m thickener is to partially precipitate and dehydrate and buffer and stabilize the ore feeding, creating conditions for uniform ore feeding in subsequent operations. The sand settling of the Φ6m thickener Enter the flotation operation for whole grain flotation. The floating tin process is carried out in two steps. In the first step, the full-grain grade of the Φ6 meter thickener with a tin content of 0.5% enters the flotation. The 0.4% tailings enter the first and second screening, and the final tailings with a tin content of less than 0.2% are produced and enter the shaker system for scanning and recovery; the concentrates of full-size roughing I and roughing II Merge and carry out full-size selection I. In the full-size flotation process, add an appropriate amount of regulators such as: polymer tanning material or tartaric acid, with a weight concentrati...

Embodiment 3

[0051] After the fine-grained tin pulp is classified, it enters the Φ6m thickener after dehydration. The function of the Φ6m thickener is to partially precipitate and dehydrate and buffer and stabilize the ore feeding, creating conditions for uniform ore feeding in subsequent operations. The sand settling of the Φ6m thickener Enter the flotation operation for whole grain flotation. The floating tin process is carried out in two steps. In the first step, the full-grain grade of the Φ6 meter thickener with a tin content of 0.5% enters the flotation. The 0.4% tailings enter the first and second screening, and the final tailings with a tin content of less than 0.2% are produced and enter the shaker system for scanning and recovery; the concentrates of full-size roughing I and roughing II Merge and carry out whole-grain grade selection I. In the whole-grain grade flotation process, add an appropriate amount of regulators such as: sodium carbonate, polymer tanning material, oxalic a...

technical field

[0001] The invention relates to a mineral processing technology, in particular to a novel mineral processing technology for recovering cassiterite in primary and secondary ore slimes of tin metal mines. Background technique

[0002] The Dachang ore field in Guangxi is a polymetallic sulfide ore dominated by cassiterite, with many types of ore, ore composition and ore properties. Therefore, the content of cassiterite in the fine-grained and micro-fine-grained pulp produced after entering the concentrator is large, and the effective recovery and treatment of this part of the pulp has become a major problem in the mineral processing work. In the past few years, the attached figure 1 (see attached figure 1 ) shown in the technological process, the process technology is briefly described as follows:

[0003] All the primary and secondary slimes enter the 6-meter thickener after concentration and dehydration, and the overflow of the 6-meter thickener enters the t...

Examples

Embodiment 1

[0047] After the fine-grained tin pulp is classified, it enters the Φ6m thickener after dehydration. The function of the Φ6m thickener is to partially precipitate and dehydrate and buffer and stabilize the ore feeding, creating conditions for uniform ore feeding in subsequent operations. The sand settling of the Φ6m thickener Enter the flotation operation for whole grain flotation. The floating tin process is carried out in two steps. In the first step, the full-grain grade of the Φ6 meter thickener with a tin content of 0.5% enters the flotation. The 0.4% tailings enter the first and second screening, and the final tailings with a tin content of less than 0.2% are produced and enter the shaker system for scanning and recovery; the concentrates of full-size roughing I and roughing II Merge and carry out full-size selection I. In the full-size flotation process, an appropriate amount of regulator sodium carbonate or sodium humate is added, with a weight concentration of 1-2%, a...

Embodiment 2

[0049] After the fine-grained tin pulp is classified, it enters the Φ6m thickener after dehydration. The function of the Φ6m thickener is to partially precipitate and dehydrate and buffer and stabilize the ore feeding, creating conditions for uniform ore feeding in subsequent operations. The sand settling of the Φ6m thickener Enter the flotation operation for whole grain flotation. The floating tin process is carried out in two steps. In the first step, the full-grain grade of the Φ6 meter thickener with a tin content of 0.5% enters the flotation. The 0.4% tailings enter the first and second screening, and the final tailings with a tin content of less than 0.2% are produced and enter the shaker system for scanning and recovery; the concentrates of full-size roughing I and roughing II Merge and carry out full-size selection I. In the full-size flotation process, add an appropriate amount of regulators such as: polymer tanning material or tartaric acid, with a weight concentrati...

Embodiment 3

[0051] After the fine-grained tin pulp is classified, it enters the Φ6m thickener after dehydration. The function of the Φ6m thickener is to partially precipitate and dehydrate and buffer and stabilize the ore feeding, creating conditions for uniform ore feeding in subsequent operations. The sand settling of the Φ6m thickener Enter the flotation operation for whole grain flotation. The floating tin process is carried out in two steps. In the first step, the full-grain grade of the Φ6 meter thickener with a tin content of 0.5% enters the flotation. The 0.4% tailings enter the first and second screening, and the final tailings with a tin content of less than 0.2% are produced and enter the shaker system for scanning and recovery; the concentrates of full-size roughing I and roughing II Merge and carry out whole-grain grade selection I. In the whole-grain grade flotation process, add an appropriate amount of regulators such as: sodium carbonate, polymer tanning material, oxalic a...

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