Full tailing glue stuff slurry and preparation method thereof

[0029] Example 1:

[0030] A full tailings cemented filler slurry is composed of cement and tailings, wherein the ratio of ash to sand is 1:4, the tailings are 20% low-concentration tailings slurry produced by beneficiation, and the prepared filler slurry has a concentration of 75%.

[0031] The preparation method of full tailings cemented filler slurry is as follows:

[0032] 1) The low-concentration tailings slurry produced by the dressing plant is thickened to 45% through a thickener, and then an alkaline medium is added to it, and the pH of the tailings slurry is adjusted to be neutral to obtain a neutral tailings slurry;

[0033] 2) Send 50% of the neutral tailings slurry to the tailings filter press system for pressure filtration treatment to obtain the filter press tailings slurry. After the press filter, the water content of the tailings slurry is 20%. The alkaline medium is preliminarily mixed with lime powder and Saturated medium made by mixing water;

[0034] 3) Feed the filter

[0036] Example 2:

[0037] A full tailings cemented filler slurry is composed of cement and tailings, wherein the ratio of ash to sand is 1:8, the tailings are 20% low-concentration tailings slurry produced by beneficiation, and the prepared filler slurry has a concentration of 80%.

[0038] The preparation method of full tailings cemented filler slurry is as follows:

[0039] 1) Pass the low-concentration tailings slurry produced by the dressing plant to 58% through a thickener, and then add alkaline medium to it to adjust the pH of the tailings slurry to neutral to obtain a neutral tailings slurry;

[0040] 2) Send 60% of the neutral tailings slurry to the tailings filter press system for pressure filtration to obtain a filter press tailing slurry. After the press filter, the water content of the tailings slurry is 14%. The alkaline medium is preliminarily mixed with lime powder and Saturated medium made by mixing water;

[0041] 3) Feed the filter press tailings slurry and the remainin

[0043] Example 3:

[0044] A full tailings cemented filler slurry, composed of cement and tailings, in which the ratio of ash to sand is 1:7.6, and the tailings are 15% low-concentration tailings slurry produced by beneficiation. The prepared filler slurry has a concentration of 75.5% .

[0045] The preparation method of full tailings cemented filler slurry is as follows:

[0046] 1) The low-concentration tailings slurry produced by the dressing plant is thickened to 57% through a thickener, and then an alkaline medium is added to it, and the pH of the tailings slurry is adjusted to be neutral to obtain a neutral tailings slurry;

[0047] 2) Send 55% of the neutral tailings slurry to the tailings filter press system for filter press treatment to obtain the filter press tailings slurry. After the press filter, the water content of the tailings slurry is 16%. The alkaline medium is preliminarily mixed with lime powder and Saturated medium made by mixing water;

[0048] 3) Feed the filter p