CN103861742A - Method for direct flotation of bauxite and secondary dehydration of concentrate - Google Patents
Method for direct flotation of bauxite and secondary dehydration of concentrate Download PDFInfo
- Publication number
- CN103861742A CN103861742A CN201410132836.7A CN201410132836A CN103861742A CN 103861742 A CN103861742 A CN 103861742A CN 201410132836 A CN201410132836 A CN 201410132836A CN 103861742 A CN103861742 A CN 103861742A
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- Prior art keywords
- filter press
- chamber type
- type diaphragm
- diaphragm filter
- compressed air
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000018044 dehydration Effects 0.000 title claims abstract description 14
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 14
- 229910001570 bauxite Inorganic materials 0.000 title claims abstract description 11
- 239000012141 concentrate Substances 0.000 title claims abstract description 11
- 238000005188 flotation Methods 0.000 title claims abstract description 10
- 208000005156 Dehydration Diseases 0.000 title abstract 2
- 238000007599 discharging Methods 0.000 claims abstract description 25
- 238000007664 blowing Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 48
- 238000003825 pressing Methods 0.000 claims description 24
- 230000007306 turnover Effects 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 239000000706 filtrate Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 239000012065 filter cake Substances 0.000 abstract description 11
- 239000012528 membrane Substances 0.000 abstract 2
- 230000007423 decrease Effects 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 230000000007 visual effect Effects 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to a method for direct flotation of bauxite and secondary dehydration of concentrate. The method effectively solves the problems that a sheet frame of a pressure filter is easily abraded, the thicknesses of filter cakes are not uniform, the moisture content is high, the quality requirement can not be met, and cost is increased. The method includes the first step of conducting routine inspection on the carriage type membrane pressure filter, and the second step of conducting feeding, primary squeezing, primary wind blowing, secondary squeezing, secondary wind blowing, discharging and restoring. The method is easy to operate, visual, clear and easy to grasp; the thicknesses of the filter cakes are uniform; the moisture content of the filter cakes is low; the damage rate of the sheet frame of the carriage type membrane pressure filter decreases, and the method has popularization value and application value.
Description
Technical field
The present invention relates to a kind of method of bauxite forward flotation concentrate second dehydration.
Background technology
That what bauxite waste residue direct floatation process adopted is is selected, roughly select, scan unique production technology, and essence mine dehydration is taked the technological process of twice dehydration, and what primary dewatering adopted is subsider dehydration, requires to dewater to underflow density 45-50%; What second dehydration adopted is (HZMGF500/2000-U) Chamber Type Diaphragm Filter Press, this is also that (HZMGF500/2000-U) Chamber Type Diaphragm Filter Press is used on bauxite waste residue direct flotation concentrate first, requirement is dewatered to filter cake moisture content 13-15%, but, at present in the process of concentrate second dehydration, there is Chamber Type Diaphragm Filter Press sheet frame serious wear, filter cake thickness inequality, moisture content exceedes 15% problem, causes operation hours short, cost up, filter cake moisture content exceeds standard, do not reach quality requirement, therefore, its improvement and bring new ideas is imperative.
Summary of the invention
For above-mentioned situation, for overcoming present technological deficiency, the present invention's object is just to provide a kind of method of bauxite forward flotation concentrate second dehydration, can effectively solve filter press frame easy to wear, filter cake thickness inequality, moisture content is high, do not reach quality requirement, and the problem of cost up.
The technical scheme that the present invention solves is, first Chamber Type Diaphragm Filter Press is carried out routine examination, comprise that surveying associated motor insulate, checks slip pipeline, compressed air piping and filtrate water pipeline, checks filter cloth, checks filter plate, checks hydraulic system, checks each electrical equipment contact, checks belt conveyer, checks compressed air pressure, checks turnover panel; Connecing afterwards following step carries out: (1), charging: open the inlet valve of Chamber Type Diaphragm Filter Press, open feed pump, rotating speed is progressively adjusted to 600 revs/min, and pressure is 0.2-0.4Mpa, starts charging, keeps 8-12 minute; The rotating speed to 800 rev/min of adjusting feed pump, pressure is 0.5-0.7Mpa, keeps 6-10 minute; Adjust rotating speed to 1100 rev/min, pressure is 0.7-0.9Mpa, and the filtrate water to Chamber Type Diaphragm Filter Press becomes umbrella from column, closes inlet valve and feed pump, stops charging; (2), single pressing: Chamber Type Diaphragm Filter Press is adjusted to squeezing program, material is squeezed to 400-600 second, stop squeezing program; (3), once blowing: open respectively compressed air outlet valve and compressed air air inlet valve in Chamber Type Diaphragm Filter Press, under blast 0.8-1.0Mpa, material is once dried 18-22 second, closes compression air air inlet valve and compressed air outlet valve; (4), twice pressing: Chamber Type Diaphragm Filter Press is adjusted to squeezing program, to the material squeezing 500-700 second after once drying, stops squeezing program; (5), after-blow: open respectively compressed air outlet valve and compressed air air inlet valve, under blast 0.8-1.0Mpa, the material after twice pressing is carried out to after-blow 28-32 second, closes compression air air inlet valve and compressed air outlet valve again; (6), discharging: close Chamber Type Diaphragm Filter Press turnover panel, open the belt conveyer that is placed in Chamber Type Diaphragm Filter Press below, Chamber Type Diaphragm Filter Press is adjusted to discharging program automatic transmission, the material after after-blow is carried out to discharging, material enters next procedure; (7), restore: after discharging, open turnover panel, close belt conveyer, Chamber Type Diaphragm Filter Press filter plate is adjusted to impaction state, treats that lower circulating process uses.
The present invention is simple to operate, simple and clear, easily grasps; Filter cake thickness is even; Filter cake moisture content is low; Chamber Type Diaphragm Filter Press sheet frame breakage rate declines, and has the value of applying.
Detailed description of the invention
Below in conjunction with actual conditions, the specific embodiment of the present invention is elaborated.
Embodiment 1
(1), charging: open the inlet valve of Chamber Type Diaphragm Filter Press, open feed pump, rotating speed is progressively adjusted to 600 revs/min, and pressure is 0.2Mpa, starts charging, keeps 8 minutes; The rotating speed to 800 rev/min of adjusting feed pump, pressure is 0.5Mpa, keeps 6 minutes; Adjust rotating speed to 1100 rev/min, pressure is 0.7Mpa, and the filtrate water to Chamber Type Diaphragm Filter Press becomes umbrella from column, closes inlet valve and feed pump, stops charging; (2), single pressing: Chamber Type Diaphragm Filter Press is adjusted to squeezing program, to material squeezing 400 seconds, stops squeezing program; (3), once blowing: open respectively compressed air outlet valve and compressed air air inlet valve in Chamber Type Diaphragm Filter Press, under blast 0.8Mpa, material is once dried 18 seconds, closes compression air air inlet valve and compressed air outlet valve; (4), twice pressing: Chamber Type Diaphragm Filter Press is adjusted to squeezing program, to the material squeezing after once drying 500 seconds, stops squeezing program; (5), after-blow: open respectively compressed air outlet valve and compressed air air inlet valve, under blast 0.8Mpa, the material after twice pressing is carried out to after-blow 28 seconds again, closes compression air air inlet valve and compressed air outlet valve; (6), discharging: close Chamber Type Diaphragm Filter Press turnover panel, open the belt conveyer that is placed in Chamber Type Diaphragm Filter Press below, Chamber Type Diaphragm Filter Press is adjusted to discharging program automatic transmission, the material after after-blow is carried out to discharging, material enters next procedure; (7), restore: after discharging, open turnover panel, close belt conveyer, Chamber Type Diaphragm Filter Press filter plate is adjusted to impaction state, treats that lower circulating process uses.
Embodiment 2
(1), charging: open the inlet valve of Chamber Type Diaphragm Filter Press, open feed pump, rotating speed is progressively adjusted to 600 revs/min, and pressure is 0.3Mpa, starts charging, keeps 10 minutes; The rotating speed to 800 rev/min of adjusting feed pump, pressure is 0.6Mpa, keeps 8 minutes; Adjust rotating speed to 1100 rev/min, pressure is 0.8Mpa, and the filtrate water to Chamber Type Diaphragm Filter Press becomes umbrella from column, closes inlet valve and feed pump, stops charging; (2), single pressing: Chamber Type Diaphragm Filter Press is adjusted to squeezing program, to material squeezing 500 seconds, stops squeezing program; (3), once blowing: open respectively compressed air outlet valve and compressed air air inlet valve in Chamber Type Diaphragm Filter Press, under blast 0.9Mpa, material is once dried 20 seconds, closes compression air air inlet valve and compressed air outlet valve; (4), twice pressing: Chamber Type Diaphragm Filter Press is adjusted to squeezing program, to the material squeezing after once drying 600 seconds, stops squeezing program; (5), after-blow: open respectively compressed air outlet valve and compressed air air inlet valve, under blast 0.9Mpa, the material after twice pressing is carried out to after-blow 30 seconds again, closes compression air air inlet valve and compressed air outlet valve; (6), discharging: close Chamber Type Diaphragm Filter Press turnover panel, open the belt conveyer that is placed in Chamber Type Diaphragm Filter Press below, Chamber Type Diaphragm Filter Press is adjusted to discharging program automatic transmission, the material after after-blow is carried out to discharging, material enters next procedure; (7), restore: after discharging, open turnover panel, close belt conveyer, Chamber Type Diaphragm Filter Press filter plate is adjusted to impaction state, treats that lower circulating process uses.
Embodiment 3
(1), charging: open the inlet valve of Chamber Type Diaphragm Filter Press, open feed pump, rotating speed is progressively adjusted to 600 revs/min, and pressure is 0.4Mpa, starts charging, keeps 12 minutes; The rotating speed to 800 rev/min of adjusting feed pump, pressure is 0.7Mpa, keeps 10 minutes; Adjust rotating speed to 1100 rev/min, pressure is 0.9Mpa, and the filtrate water to Chamber Type Diaphragm Filter Press becomes umbrella from column, closes inlet valve and feed pump, stops charging; (2), single pressing: Chamber Type Diaphragm Filter Press is adjusted to squeezing program, to material squeezing 600 seconds, stops squeezing program; (3), once blowing: open respectively compressed air outlet valve and compressed air air inlet valve in Chamber Type Diaphragm Filter Press, under blast 1.0Mpa, material is once dried 22 seconds, closes compression air air inlet valve and compressed air outlet valve; (4), twice pressing: Chamber Type Diaphragm Filter Press is adjusted to squeezing program, to the material squeezing after once drying 700 seconds, stops squeezing program; (5), after-blow: open respectively compressed air outlet valve and compressed air air inlet valve, under blast 1.0Mpa, the material after twice pressing is carried out to after-blow 32 seconds again, closes compression air air inlet valve and compressed air outlet valve; (6), discharging: close Chamber Type Diaphragm Filter Press turnover panel, open the belt conveyer that is placed in Chamber Type Diaphragm Filter Press below, Chamber Type Diaphragm Filter Press is adjusted to discharging program automatic transmission, the material after after-blow is carried out to discharging, material enters next procedure; (7), restore: after discharging, open turnover panel, close belt conveyer, Chamber Type Diaphragm Filter Press filter plate is adjusted to impaction state, treats that lower circulating process uses.
The present invention is through repeated tests, and the filter cake thickness of gained is even, and filter cake moisture content is controlled at 13-15%, and Chamber Type Diaphragm Filter Press sheet frame breakage rate declines more than 50%, and double above the service life of Chamber Type Diaphragm Filter Press sheet frame, simple to operate, simple and clear, easily to grasp, operation hours is long, 30-40% reduces production costs, products obtained therefrom steady quality is reliable, and yield rate is high, has reduced waste product pollution on the environment, energy-conserving and environment-protective, economic and social benefit is huge.
Claims (4)
1. the method for a bauxite forward flotation concentrate second dehydration, it is characterized in that, first Chamber Type Diaphragm Filter Press is carried out routine examination, connecing afterwards following step carries out: (1), charging: the inlet valve of opening Chamber Type Diaphragm Filter Press, open feed pump, rotating speed is progressively adjusted to 600 revs/min, and pressure is 0.2-0.4Mpa, start charging, keep 8-12 minute; The rotating speed to 800 rev/min of adjusting feed pump, pressure is 0.5-0.7Mpa, keeps 6-10 minute; Adjust rotating speed to 1100 rev/min, pressure is 0.7-0.9Mpa, and the filtrate water to Chamber Type Diaphragm Filter Press becomes umbrella from column, closes inlet valve and feed pump, stops charging; (2), single pressing: Chamber Type Diaphragm Filter Press is adjusted to squeezing program, material is squeezed to 400-600 second, stop squeezing program; (3), once blowing: open respectively compressed air outlet valve and compressed air air inlet valve in Chamber Type Diaphragm Filter Press, under blast 0.8-1.0Mpa, material is once dried 18-22 second, closes compression air air inlet valve and compressed air outlet valve; (4), twice pressing: Chamber Type Diaphragm Filter Press is adjusted to squeezing program, to the material squeezing 500-700 second after once drying, stops squeezing program; (5), after-blow: open respectively compressed air outlet valve and compressed air air inlet valve, under blast 0.8-1.0Mpa, the material after twice pressing is carried out to after-blow 28-32 second, closes compression air air inlet valve and compressed air outlet valve again; (6), discharging: close Chamber Type Diaphragm Filter Press turnover panel, open the belt conveyer that is placed in Chamber Type Diaphragm Filter Press below, Chamber Type Diaphragm Filter Press is adjusted to discharging program automatic transmission, the material after after-blow is carried out to discharging, material enters next procedure; (7), restore: after discharging, open turnover panel, close belt conveyer, Chamber Type Diaphragm Filter Press filter plate is adjusted to impaction state, treats that lower circulating process uses.
2. the method for bauxite forward flotation concentrate second dehydration according to claim 1, is characterized in that, (1), charging: the inlet valve of opening Chamber Type Diaphragm Filter Press, open feed pump, rotating speed is progressively adjusted to 600 revs/min, and pressure is 0.2Mpa, start charging, keep 8 minutes; The rotating speed to 800 rev/min of adjusting feed pump, pressure is 0.5Mpa, keeps 6 minutes; Adjust rotating speed to 1100 rev/min, pressure is 0.7Mpa, and the filtrate water to Chamber Type Diaphragm Filter Press becomes umbrella from column, closes inlet valve and feed pump, stops charging; (2), single pressing: Chamber Type Diaphragm Filter Press is adjusted to squeezing program, to material squeezing 400 seconds, stops squeezing program; (3), once blowing: open respectively compressed air outlet valve and compressed air air inlet valve in Chamber Type Diaphragm Filter Press, under blast 0.8Mpa, material is once dried 18 seconds, closes compression air air inlet valve and compressed air outlet valve; (4), twice pressing: Chamber Type Diaphragm Filter Press is adjusted to squeezing program, to the material squeezing after once drying 500 seconds, stops squeezing program; (5), after-blow: open respectively compressed air outlet valve and compressed air air inlet valve, under blast 0.8Mpa, the material after twice pressing is carried out to after-blow 28 seconds again, closes compression air air inlet valve and compressed air outlet valve; (6), discharging: close Chamber Type Diaphragm Filter Press turnover panel, open the belt conveyer that is placed in Chamber Type Diaphragm Filter Press below, Chamber Type Diaphragm Filter Press is adjusted to discharging program automatic transmission, the material after after-blow is carried out to discharging, material enters next procedure; (7), restore: after discharging, open turnover panel, close belt conveyer, Chamber Type Diaphragm Filter Press filter plate is adjusted to impaction state, treats that lower circulating process uses.
3. the method for bauxite forward flotation concentrate second dehydration according to claim 1, is characterized in that, (1), charging: the inlet valve of opening Chamber Type Diaphragm Filter Press, open feed pump, rotating speed is progressively adjusted to 600 revs/min, and pressure is 0.3Mpa, start charging, keep 10 minutes; The rotating speed to 800 rev/min of adjusting feed pump, pressure is 0.6Mpa, keeps 8 minutes; Adjust rotating speed to 1100 rev/min, pressure is 0.8Mpa, and the filtrate water to Chamber Type Diaphragm Filter Press becomes umbrella from column, closes inlet valve and feed pump, stops charging; (2), single pressing: Chamber Type Diaphragm Filter Press is adjusted to squeezing program, to material squeezing 500 seconds, stops squeezing program; (3), once blowing: open respectively compressed air outlet valve and compressed air air inlet valve in Chamber Type Diaphragm Filter Press, under blast 0.9Mpa, material is once dried 20 seconds, closes compression air air inlet valve and compressed air outlet valve; (4), twice pressing: Chamber Type Diaphragm Filter Press is adjusted to squeezing program, to the material squeezing after once drying 600 seconds, stops squeezing program; (5), after-blow: open respectively compressed air outlet valve and compressed air air inlet valve, under blast 0.9Mpa, the material after twice pressing is carried out to after-blow 30 seconds again, closes compression air air inlet valve and compressed air outlet valve; (6), discharging: close Chamber Type Diaphragm Filter Press turnover panel, open the belt conveyer that is placed in Chamber Type Diaphragm Filter Press below, Chamber Type Diaphragm Filter Press is adjusted to discharging program automatic transmission, the material after after-blow is carried out to discharging, material enters next procedure; (7), restore: after discharging, open turnover panel, close belt conveyer, Chamber Type Diaphragm Filter Press filter plate is adjusted to impaction state, treats that lower circulating process uses.
4. the method for bauxite forward flotation concentrate second dehydration according to claim 1, is characterized in that, (1), charging: the inlet valve of opening Chamber Type Diaphragm Filter Press, open feed pump, rotating speed is progressively adjusted to 600 revs/min, and pressure is 0.4Mpa, start charging, keep 12 minutes; The rotating speed to 800 rev/min of adjusting feed pump, pressure is 0.7Mpa, keeps 10 minutes; Adjust rotating speed to 1100 rev/min, pressure is 0.9Mpa, and the filtrate water to Chamber Type Diaphragm Filter Press becomes umbrella from column, closes inlet valve and feed pump, stops charging; (2), single pressing: Chamber Type Diaphragm Filter Press is adjusted to squeezing program, to material squeezing 600 seconds, stops squeezing program; (3), once blowing: open respectively compressed air outlet valve and compressed air air inlet valve in Chamber Type Diaphragm Filter Press, under blast 1.0Mpa, material is once dried 22 seconds, closes compression air air inlet valve and compressed air outlet valve; (4), twice pressing: Chamber Type Diaphragm Filter Press is adjusted to squeezing program, to the material squeezing after once drying 700 seconds, stops squeezing program; (5), after-blow: open respectively compressed air outlet valve and compressed air air inlet valve, under blast 1.0Mpa, the material after twice pressing is carried out to after-blow 32 seconds again, closes compression air air inlet valve and compressed air outlet valve; (6), discharging: close Chamber Type Diaphragm Filter Press turnover panel, open the belt conveyer that is placed in Chamber Type Diaphragm Filter Press below, Chamber Type Diaphragm Filter Press is adjusted to discharging program automatic transmission, the material after after-blow is carried out to discharging, material enters next procedure; (7), restore: after discharging, open turnover panel, close belt conveyer, Chamber Type Diaphragm Filter Press filter plate is adjusted to impaction state, treats that lower circulating process uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410132836.7A CN103861742B (en) | 2014-04-03 | 2014-04-03 | A kind of method of bauxite forward flotation concentrate second dehydration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410132836.7A CN103861742B (en) | 2014-04-03 | 2014-04-03 | A kind of method of bauxite forward flotation concentrate second dehydration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103861742A true CN103861742A (en) | 2014-06-18 |
| CN103861742B CN103861742B (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410132836.7A Expired - Fee Related CN103861742B (en) | 2014-04-03 | 2014-04-03 | A kind of method of bauxite forward flotation concentrate second dehydration |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61161112A (en) * | 1985-01-07 | 1986-07-21 | Ishigaki Kiko Kk | Filter press |
| CN2063434U (en) * | 1990-03-17 | 1990-10-10 | 吉林省扶余市橡胶制品厂 | Box type rubber diaphragm pressing filter-plate |
| CN101518700A (en) * | 2008-08-14 | 2009-09-02 | 杭州兴源过滤机有限公司 | Full automatic seaweed gel diaphragm filter press and squeezing method |
| CN202822909U (en) * | 2012-09-20 | 2013-03-27 | 山东铝业公司设备研究检测中心 | Novel vertical-type full-automatic self-locking-type efficient diaphragm filter press |
-
2014
- 2014-04-03 CN CN201410132836.7A patent/CN103861742B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61161112A (en) * | 1985-01-07 | 1986-07-21 | Ishigaki Kiko Kk | Filter press |
| CN2063434U (en) * | 1990-03-17 | 1990-10-10 | 吉林省扶余市橡胶制品厂 | Box type rubber diaphragm pressing filter-plate |
| CN101518700A (en) * | 2008-08-14 | 2009-09-02 | 杭州兴源过滤机有限公司 | Full automatic seaweed gel diaphragm filter press and squeezing method |
| CN202822909U (en) * | 2012-09-20 | 2013-03-27 | 山东铝业公司设备研究检测中心 | Novel vertical-type full-automatic self-locking-type efficient diaphragm filter press |
Non-Patent Citations (1)
| Title |
|---|
| 陈帅等: "KZGS650/2000-U型快开式隔膜压滤机在临涣选煤厂的应用", 《选煤技术》 * |
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| Publication number | Publication date |
|---|---|
| CN103861742B (en) | 2015-10-07 |
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Address after: Dengfeng City, Henan province 452470 city of Zhengzhou Tang Zhuang Xiang Tang Dong Cun Bei River Patentee after: HENAN DONGDA TECHNOLOGY CO.,LTD. Address before: Dengfeng City, Henan province 452470 city of Zhengzhou Tang Zhuang Xiang Tang Dong Cun Bei River Patentee before: HENAN DONGDA MINING Co.,Ltd. |
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Granted publication date: 20151007 |