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Ore dressing plant cylinder thickener calculating method capable of ensuring overflow quality and underflow storage capacity

A technology of storage capacity and thickener, which is applied in the field of cylindrical thickener computing in mineral processing plants, can solve the problems of small thickener depth, no calculation, and no storage capacity of cylindrical thickeners, and achieves the effect of avoiding estimation and blind enlargement

Active Publication Date: 2017-01-04
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In order to solve the problems that the depth of the cylindrical thickener is not calculated when the cylindrical thickener is selected in the design of the aforementioned mineral processing plant, the storage capacity of the cylindrical thickener is not included, and the depth of the selected thickener is too small. The present invention provides a method to ensure overflow quality and Calculation method for underflow storage capacity of cylindrical thickener in concentrator

Method used

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  • Ore dressing plant cylinder thickener calculating method capable of ensuring overflow quality and underflow storage capacity
  • Ore dressing plant cylinder thickener calculating method capable of ensuring overflow quality and underflow storage capacity
  • Ore dressing plant cylinder thickener calculating method capable of ensuring overflow quality and underflow storage capacity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] The copper oxide concentrate in a dressing plant has been tested to have a settling velocity of 0.02 mm / s and a feed concentration of 20%. Settling and compressing in a graduated cylinder for 18 hours can yield a sediment with an average concentration of 60%. The true specific gravity is 3, the maximum dry weight of concentrated ore processed per day is 210 tons per day, and the underflow is stopped for 6 hours every day. Try to choose and calculate the required depth of the concentrator.

[0074] Such as figure 1 As shown, (1) The calculation requires the area and diameter of the cylindrical thickener

[0075] Q=210 tons / day=0.00243 tons / second

[0076]

[0077]

[0078] V=0.02 mm / s

[0079] K takes 0.9

[0080] δ=3 tons / meter 3

[0081] t 必需 = 18 hours

[0082] t 储存 = 6 hours

[0083] α takes 12°

[0084] thus,

[0085]

[0086] Required settlement area

[0087] F=Qf=210*2.14=449.4 (m 2 )

[0088] Choose a thickener

[0089] Need cylindrical th...

Embodiment 2

[0097] The copper oxide concentrate in a dressing plant has been tested to have a settling velocity of 0.02 mm / s, a feed concentration of 20%, a minimum feed concentration of 15%, and an average concentration of 60% after settling and compressing in a graduated cylinder for 18 hours. The real specific gravity of the copper concentrate is 3, and the maximum dry weight of the concentrate is 210 tons per day. The filtration operation is performed every day, and the production is 6 hours per shift. Try to choose and calculate the depth of the concentrator required.

[0098] Such as figure 1 As shown, (1) The calculation requires the area and diameter of the cylindrical thickener

[0099] Q=210 tons / day=0.00243 tons / second

[0100]

[0101]

[0102] V=0.02 mm / s

[0103] K takes 0.9

[0104] δ=3 tons / meter 3

[0105] t 必需 = 18 hours

[0106] t 储存 = 24-1*6 = 18 hours

[0107] α takes 12°

[0108] thus,

[0109]

[0110] Required settlement area

[0111] F=Qf=210*...

Embodiment 3

[0121] The copper oxide concentrate in a dressing plant has been tested to have a settling velocity of 0.02 mm / s, a feed concentration of 20%, a minimum feed concentration of 15%, and an average concentration of 60% after settling and compressing in a graduated cylinder for 18 hours. The real specific gravity of the copper concentrate is 3, and the maximum dry weight of the concentrate is 210 tons per day. The filtration operation is carried out in one shift per day, and the production time per shift is 6 hours. The maximum time required for filtration overhaul and transformation is 48 hours. Try to select and calculate the required thickener depth.

[0122] Such as figure 1 As shown, (1) The calculation requires the area and diameter of the cylindrical thickener

[0123] Q=210 tons / day=0.00243 tons / second

[0124]

[0125]

[0126] V=0.02 mm / s

[0127] K takes 0.9

[0128] δ=3 tons / meter 3

[0129] t 必需 = 18 hours

[0130] t 储存 =24-1*6+48=66 hours

[0131] α t...

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Abstract

The invention relates to a ore dressing plant cylinder thickener calculating method capable of ensuring overflow quality and underflow storage capacity, and belongs to the technical field of thickening equipment. According to the ore dressing plant cylinder thickener calculating method capable of ensuring the overflow quality and the underflow storage capacity, height of a compression area formed by the storage of underflow is included when the minimum total depth H of a cylinder thickener is calculated, and the heightof the compression area formed by the storage of the underflow is height H5 of compression area formed when the underflow stops discharging, H5 is shown in the description, total depth of the thickener calculated and determined by the technical solution disclosed by the invention includes height meeting storage capacity need, and a selected cylinder thickener can meet the requirements for the overflow quality and the underflow storage capacity.

Description

technical field [0001] The invention relates to a calculation method for a cylindrical thickener in a concentrator to ensure overflow quality and underflow storage capacity, and belongs to the technical field of thickening equipment. Background technique [0002] The function of the thickener in the concentrator is thickening, which mainly includes three aspects: ① accept the pulp, ② thicken the pulp and obtain low-concentration overflow and high-concentration underflow, ③ discharge overflow and underflow. [0003] During the production of the concentrator, the thickener continuously receives the pulp and discharges the overflow continuously, but only discharges the underflow during the subsequent filtering work. There are two working systems: ① continuous discharge of underflow; ② non-discharge of underflow. [0004] There are three main working indicators of the thickener in the concentrator: ①overflow quality, that is, overflow concentration; ②underflow quality, that is,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 庄故章周平谢海云高利坤戴惠新张校熔
Owner KUNMING UNIV OF SCI & TECH
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