CN1962072A - Closed circuit grinding classification system consisting of cyclone and grate discharge ball mill - Google Patents
Closed circuit grinding classification system consisting of cyclone and grate discharge ball mill Download PDFInfo
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- CN1962072A CN1962072A CN 200610134352 CN200610134352A CN1962072A CN 1962072 A CN1962072 A CN 1962072A CN 200610134352 CN200610134352 CN 200610134352 CN 200610134352 A CN200610134352 A CN 200610134352A CN 1962072 A CN1962072 A CN 1962072A
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Abstract
The invention relates to a closed grinding classifying system, wherein it is formed by cyclone device, grid ball grinder. The invention uses single cyclone device whose inlet is connected to the slurry pump adjusted by the frequency changer; the inlet of slurry pump is connected to the slurry groove whose inlet is connected to the mine outlet of grinder; the bottom outlet of cyclone device via groove is connected to the mine inlet of ball grinder, while its overflow outlet is connected to next step. The invention can improve efficiency.
Description
Technical field
The present invention relates to the closed circuit grinding classification system consisting of cyclone and grate discharge ball mill that a kind of closed circuit grinding classification system of ore-dressing practice is made up of cyclone and grate ball mill.
Background technology
The inspection classifying equipoment that present domestic ore dressing plant and grate ball mill are formed closed circuit grinding classification system is to adopt spiral classifier mostly, its advantage is that technology is ripe, convenient management, its shortcoming is that fault rate is higher, cause the related decline of ball mill operating rate, can not give full play to the ore grinding ability of grate ball mill.Quite successful for the supporting with it use cyclone classification of overflowball mill both at home and abroad at present, but cyclone and grate ball mill are formed the illustration that closed circuit grinding classification system does not also have success.So the research of native system successfully is the precedent that promotes domestic grate ball mill operating rate, for the productive potentialities of performance long-established enterprise, promote the production capacity of existing equipment, improve the performance of enterprises and be of great immediate significance.
Summary of the invention
The purpose of this invention is to provide a kind of closed circuit grinding classification system consisting of cyclone and grate discharge ball mill, this system adopts the separate unit cyclone that is complementary with the grate ball mill treating capacity, is made up of the controlled pulp tank of slag stock pump, automatic water-replenishing device and liquid level of frequency converter timing control, realized stable closed circuit grinding classification operation, this system improves more than 5% than the unit interval ore grinding treating capacity of spiral classifier-grate ball mill closed circuit grinding classification system, and the system job rate improves 2.8%.
For achieving the above object, the present invention adopts following technical scheme:
Closed circuit grinding classification system consisting of cyclone and grate discharge ball mill, it is characterized in that: this system is made up of grate ball mill, pulp tank, slag stock pump, frequency converter, cyclone, water replanishing device, pipeline, this system selects the separate unit cyclone that is complementary with the grate ball mill treating capacity for use, the inlet of described cyclone is connected with the slag stock pump by frequency converter timing, slag stock pump inlet connects pulp tank, and the pulp tank inlet connects the gape of grate ball mill; The underflow opening of cyclone is connected with the feed port of grate ball mill by chute; The overfall of cyclone is connected with next procedure.
Described cyclone inlet is equipped with pressure, flow and concentration detection apparatus.
Described pulp tank top is provided with liquid level detection device.
The automatic water-replenishing device of system is made of flowmeter and electrically operated valve.
Described system adopts a worker one to be equipped with two cover cyclone classifications and same table grinder matches.
The present invention's beneficial effect compared with prior art is:
This system adopts the separate unit cyclone that is complementary with the grate ball mill treating capacity, is made up of the controlled pulp tank of slag stock pump, automatic water-replenishing device and the liquid level of frequency converter timing, realized stable closed circuit grinding classification operation, this system improves more than 5% than the unit interval ore grinding treating capacity of spiral classifier-grate ball mill closed circuit grinding classification system, and the system job rate improves 2.8%.Has the advantage that floor space is little, operating rate is high, classification efficiency is high.
Description of drawings
Fig. 1 is the configuration schematic diagram of the closed circuit grinding classification system consisting of cyclone and grate discharge ball mill of embodiment 1.
Fig. 2 is the configuration schematic diagram of the closed circuit grinding classification system consisting of cyclone and grate discharge ball mill of embodiment 2.
The specific embodiment
Embodiment 1
See Fig. 1, closed circuit grinding classification system consisting of cyclone and grate discharge ball mill, this system is made up of grate ball mill 5, pulp tank 8, slag stock pump 10, frequency converter 11, cyclone 1, automatic water-replenishing device 3,4,6,7 and pipeline, this system selects the separate unit cyclone that is complementary with the grate ball mill treating capacity for use, the inlet of described cyclone 1 is connected with the slag stock pump 10 by frequency converter 11 speed governing, slag stock pump 10 inlets connect pulp tank 8, and pulp tank 8 inlets connect the gape of grate ball mill 5; The underflow of cyclone 1 (sand setting) returns the feed port 27 of grate ball mill 5 through chute 33; The overfall of cyclone 1 is connected with next procedure by chute 34.
Described cyclone 1 inlet is equipped with pressure-detecting device 2, flow detector 12, concentration detection apparatus 13.
The liquid level of described pulp tank 8 is by liquid level detection device 9 monitoring.
The automatic water-replenishing device of system is made of flowmeter 3, electrically operated valve 4 and flowmeter 6, electrically operated valve 7.
The course of work of native system: the ore pulp to be fractionated that is fed by cyclone 1 inlet is to be carried by slag stock pump 10 suction from the pulp tank 8 that grate ball mill 5 gapes are provided with, the overflow of cyclone 1 is the graded product of this system, deliver to next procedure, the underflow of cyclone 1 (sand setting) returns the grate ball mill feed port by chute 33 gravity flows and proceeds to grind; The liquid level of pulp tank 8 is by liquid level detection device 9 monitoring; The rotating speed of slag stock pump 10 is adjusted by frequency converter 11; System adds water by flowmeter 3,6 and electrically operated valve 4,7 controls.
Embodiment 2
See Fig. 2, this embodiment adopts a worker one to be equipped with two cover cyclone classification systems and same grate ball mill matches, and can reduce the problem of the grate ball mill operating rate reduction that causes because of the classifying equipoment fault to greatest extent.Select the two cover separate unit cyclones 1 and 24 that are complementary with grate ball mill 5 treating capacities for use, every cyclone inlet is separately installed with pressure-detecting device 2, flow detector 12, concentration detection apparatus 13 and pressure-detecting device 23, flow detector 21, concentration detection apparatus 22, carry by slag stock pump 11 and 19 suction from the pulp tank 8 and 18 that the grate ball mill gape is provided with respectively by the ore pulp to be fractionated that the cyclone inlet feeds, the overflow of cyclone (has been installed flow and concentration detection apparatus 15 for the graded product of this system on overflow pipe, 14), deliver to next procedure, the underflow of cyclone (sand setting) gravity flow is returned the grate ball mill feed port and is proceeded to grind; Pulp tank 8 and 18 liquid level are by liquid level detection device 9 and 17 monitoring; The rotating speed of slag stock pump is adjusted by frequency converter 11 and 20; System adds water by flowmeter 3,6 and electrically operated valve 7 and 16 controls.The realization of above-mentioned all technological parameter desired values and other system process parameter are all dispatched by field control cabinet, the unification of upper monitoring machine of automatic control system, realize stable closed circuit grinding classification operation.
25-charging gear among Fig. 1, Fig. 2; The 26-meausring apparatus; 27-grinding machine feed port; 28-grinding machine gape; 29-Grinding machine master motor; 30-upper monitoring machine; 31-on-site supervision machine; 32-field control cabinet; 33-sand return chute; 34-overflows The stream chute.
Claims (5)
1, closed circuit grinding classification system consisting of cyclone and grate discharge ball mill, it is characterized in that: this system is made up of grate ball mill, pulp tank, slag stock pump, frequency converter, cyclone, water replanishing device, pipeline, this system selects the separate unit cyclone that is complementary with the grate ball mill treating capacity for use, the inlet of described cyclone is connected with the slag stock pump by frequency converter timing, slag stock pump inlet connects pulp tank, and the pulp tank inlet connects the gape of grate ball mill; The underflow opening of cyclone is connected with the feed port of grate ball mill by chute; The overfall of cyclone is connected with next procedure.
2, closed circuit grinding classification system consisting of cyclone and grate discharge ball mill according to claim 1 is characterized in that: described cyclone inlet is equipped with pressure, flow and concentration detection apparatus.
3, closed circuit grinding classification system consisting of cyclone and grate discharge ball mill according to claim 1 is characterized in that: described pulp tank top is provided with liquid level detection device.
4, closed circuit grinding classification system consisting of cyclone and grate discharge ball mill according to claim 1 is characterized in that: the automatic water-replenishing device of system is made of flowmeter and electrically operated valve.
5, closed circuit grinding classification system consisting of cyclone and grate discharge ball mill according to claim 1 is characterized in that: described system adopts a worker one to be equipped with two cover cyclone classifications and same table grinder matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610134352 CN1962072A (en) | 2006-11-24 | 2006-11-24 | Closed circuit grinding classification system consisting of cyclone and grate discharge ball mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610134352 CN1962072A (en) | 2006-11-24 | 2006-11-24 | Closed circuit grinding classification system consisting of cyclone and grate discharge ball mill |
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| CN1962072A true CN1962072A (en) | 2007-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200610134352 Pending CN1962072A (en) | 2006-11-24 | 2006-11-24 | Closed circuit grinding classification system consisting of cyclone and grate discharge ball mill |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008998A (en) * | 2010-10-29 | 2011-04-13 | 东南大学 | Automatic control device and automatic control method of hydrocyclone |
| CN102029222A (en) * | 2010-11-10 | 2011-04-27 | 白银有色集团股份有限公司 | Grinding technology for processing copper-smelted slag and system thereof |
| CN102205271A (en) * | 2011-05-27 | 2011-10-05 | 大冶有色设计研究院有限公司 | Method and device for improving ore grinding grading effect |
| CN103691538A (en) * | 2014-01-10 | 2014-04-02 | 重钢西昌矿业有限公司 | Ore grinding and classifying system and method |
| CN104148168A (en) * | 2014-08-06 | 2014-11-19 | 哈巴河金坝矿业有限公司 | Ore grinding method and device for gold |
| CN104475228A (en) * | 2014-11-15 | 2015-04-01 | 中铝国际技术发展有限公司 | Grading method for solid-liquid two-phase flow size |
| CN105195299A (en) * | 2015-10-21 | 2015-12-30 | 中冶北方（大连）工程技术有限公司 | Closed loop control system and closed loop control method for ball mill-cyclone group |
| CN108956250A (en) * | 2018-08-01 | 2018-12-07 | 中国海洋大学 | The continuous hydraulic classiciation sorting unit and its method for separating of particulate matter in a kind of water body |
-
2006
- 2006-11-24 CN CN 200610134352 patent/CN1962072A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008998A (en) * | 2010-10-29 | 2011-04-13 | 东南大学 | Automatic control device and automatic control method of hydrocyclone |
| CN102008998B (en) * | 2010-10-29 | 2013-04-03 | 东南大学 | Automatic control device and automatic control method of hydrocyclone |
| CN102029222A (en) * | 2010-11-10 | 2011-04-27 | 白银有色集团股份有限公司 | Grinding technology for processing copper-smelted slag and system thereof |
| CN102029222B (en) * | 2010-11-10 | 2013-02-06 | 白银有色集团股份有限公司 | Grinding technology for processing copper-smelted slag and system thereof |
| CN102205271A (en) * | 2011-05-27 | 2011-10-05 | 大冶有色设计研究院有限公司 | Method and device for improving ore grinding grading effect |
| CN102205271B (en) * | 2011-05-27 | 2013-01-02 | 大冶有色设计研究院有限公司 | Method and device for improving ore grinding grading effect |
| CN103691538A (en) * | 2014-01-10 | 2014-04-02 | 重钢西昌矿业有限公司 | Ore grinding and classifying system and method |
| CN103691538B (en) * | 2014-01-10 | 2016-08-17 | 重钢西昌矿业有限公司 | A kind of grinding classification system of Ore |
| CN104148168A (en) * | 2014-08-06 | 2014-11-19 | 哈巴河金坝矿业有限公司 | Ore grinding method and device for gold |
| CN104475228A (en) * | 2014-11-15 | 2015-04-01 | 中铝国际技术发展有限公司 | Grading method for solid-liquid two-phase flow size |
| CN105195299A (en) * | 2015-10-21 | 2015-12-30 | 中冶北方（大连）工程技术有限公司 | Closed loop control system and closed loop control method for ball mill-cyclone group |
| CN108956250A (en) * | 2018-08-01 | 2018-12-07 | 中国海洋大学 | The continuous hydraulic classiciation sorting unit and its method for separating of particulate matter in a kind of water body |
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