RU95115776A - METHOD FOR ENRICHMENT OF FINE-FACED ORE WEIGHT AND INSTALLATION FOR ITS IMPLEMENTATION - Google Patents
METHOD FOR ENRICHMENT OF FINE-FACED ORE WEIGHT AND INSTALLATION FOR ITS IMPLEMENTATIONInfo
- Publication number
- RU95115776A RU95115776A RU95115776/03A RU95115776A RU95115776A RU 95115776 A RU95115776 A RU 95115776A RU 95115776/03 A RU95115776/03 A RU 95115776/03A RU 95115776 A RU95115776 A RU 95115776A RU 95115776 A RU95115776 A RU 95115776A
- Authority
- RU
- Russia
- Prior art keywords
- pulp
- gravity
- ore
- installation according
- sieve
- Prior art date
Links
- 238000009434 installation Methods 0.000 title claims 28
- 230000005484 gravity Effects 0.000 claims 31
- 239000002245 particle Substances 0.000 claims 23
- 239000002002 slurry Substances 0.000 claims 22
- 238000000926 separation method Methods 0.000 claims 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 5
- 239000012141 concentrate Substances 0.000 claims 3
- 238000005192 partition Methods 0.000 claims 2
- 230000001133 acceleration Effects 0.000 claims 1
- 239000002244 precipitate Substances 0.000 claims 1
- 239000011435 rock Substances 0.000 claims 1
Claims (33)
L = v•D/(U•Kу•Kс),
где L - расстояние от входа в гравитационный пульповод до задней стенки отверстия в его донной части, м;
D - внутренний диаметр гравитационного пульповода, м;
v - скорость потока калиброванной пульпы в гравитационном пульповоде от отверстия в его донной части, м;
U - скорость свободного падения рудосодержащих частиц в калиброванной пульпе, протекающей по гравитационному пульповоду до отверстия в его донной части, м/с;
Kу - безразмерный коэффициент, учитывающий ускорение падения рудосодержащей частицы в режиме перемешивания потока калиброванной пульпы при движении по гравитационному пульповоду, для частиц размером больше 1 мм Ку = 1, для частиц размером меньше 1 мм Kу = (1/d)4D, где d - минимальный размер рудосодержащей частицы, которая должна выпасть в осадок, м;
D - внутренний диаметр гравитационного пульповода, м;
Кс - безразмерный коэффициент, учитывающий стесненные условия выпадения рудосодержащих частиц и частиц породы в придонном слое движущегося потока калиброванной пульпы в гравитационном пульповоде до отверстия в его донной части, 0,1 > Kс < 0,3 в зависимости от концентрации пульпы (выбирается по таблицам).9. Installation according to claim 7, characterized in that the gravitational slurry conduit from the entrance to the rear wall of the hole in its bottom is made of length L, determined by the formula
L = v • D / (U • K y • K s ),
where L is the distance from the entrance to the gravity slurry line to the rear wall of the hole in its bottom, m;
D is the inner diameter of the gravity pulp line, m;
v is the flow rate of the calibrated pulp in the gravity pulp line from the hole in its bottom, m;
U is the free fall rate of ore-containing particles in a calibrated pulp flowing along a gravity pulp line to an opening in its bottom, m / s;
K y is a dimensionless coefficient that takes into account the acceleration of the fall of an ore-containing particle in the mixing mode of the calibrated pulp flow when moving along a gravity pulp line, for particles larger than 1 mm K y = 1, for particles smaller than 1 mm K y = (1 / d) 4D , where d is the minimum size of the ore-containing particles, which should precipitate, m;
D is the inner diameter of the gravity pulp line, m;
K s is a dimensionless coefficient that takes into account the cramped conditions of ore-bearing particles and rock particles in the bottom layer of the moving flow of calibrated pulp in the gravitational pulp line to the hole in its bottom, 0.1> K s <0.3 depending on the pulp concentration (selected by tables).
где Dп - внутренний диаметр отводного патрубка, м;
Q - часовой расход конечной пульпы через отводной патрубок, м3/ч;
vп - скорость придонного потока калиброванной пульпы в гравитационном пульповоде до отверстия в его донной части, м/с.10. Installation according to claim 7, characterized in that the outlet pipe is made of an inner diameter D p determined by the formula
where D p - the inner diameter of the branch pipe, m;
Q is the hourly flow rate of the final pulp through the branch pipe, m 3 / h;
v p is the velocity of the bottom flow of calibrated pulp in a gravity pulp line to the hole in its bottom, m / s.
раз,
где Kг - безразмерный коэффициент;
Ро - перепад давления на отверстиях стенки решета 10, кг;
Рг - перепад давления на гравитационном пульповоде 1, кг.12. Installation according to paragraphs. 7 and 8, characterized in that the area of the passage section of the gravitational slurry conduit is larger than the total area of the passage section of the openings of the sieve wall in
time,
where K g - dimensionless coefficient;
P about - pressure drop on the holes of the sieve wall 10, kg;
R g - pressure drop on the gravity slurry line 1, kg
раз,
где Q - расход пульпы через входной патрубок решета, м3/ч;
Q - расход пульпы через отверстия решета, м3/ч;
Kв - безразмерный коэффициент.14. Installation according to paragraphs. 7 and 8, characterized in that the area of the passage section of the outlet sieve pipe is larger than the area of the passage section of its inlet pipe in
time,
where Q is the flow rate of the pulp through the inlet pipe sieve, m 3 / h;
Q — pulp flow rate through the sieve openings, m 3 / h;
K in - dimensionless coefficient.
раз,
где Kр - безразмерный коэффициент;
Q1 - расход пульпы через входной патрубок решета;
Q2 - расход пульпы через отверстия стенки решета.20. Installation according to paragraphs. 7 and 8, characterized in that the length of the sieve wall is greater than the circumference of its base in
time,
where K p - dimensionless coefficient;
Q 1 - pulp flow rate through the inlet of the sieve;
Q 2 - the flow of pulp through the holes of the sieve wall.
Publications (1)
Publication Number | Publication Date |
---|---|
RU95115776A true RU95115776A (en) | 1997-09-27 |
Family
ID=
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001089703A1 (en) * | 2000-05-22 | 2001-11-29 | Boris Pavlovich Derkachev | Method for enrichment of heavy fine-fractional concentrates |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001089703A1 (en) * | 2000-05-22 | 2001-11-29 | Boris Pavlovich Derkachev | Method for enrichment of heavy fine-fractional concentrates |
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