CN106583021B - A method of spiral chute is improved to the magnetic mineral rate of recovery - Google Patents
A method of spiral chute is improved to the magnetic mineral rate of recovery Download PDFInfo
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- CN106583021B CN106583021B CN201611138863.0A CN201611138863A CN106583021B CN 106583021 B CN106583021 B CN 106583021B CN 201611138863 A CN201611138863 A CN 201611138863A CN 106583021 B CN106583021 B CN 106583021B
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- coating
- spiral chute
- line style
- recovery
- magnetic mineral
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/44—Amides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
Abstract
The present invention relates to a kind of raising spiral chutes to the method for the magnetic mineral rate of recovery, belongs to mine ore dressing equipment technical field.At least one line style shape coating is coated on spiral chute surface, is then magnetized according to line style shape coating line style trend, coating is that 40~60:15~25:20~30:5~15 Nd-Fe-B powder, diamond dust, resin and curing agent form by mass percent.The present invention is by changing the surface characteristic of spiral chute helicla flute in spiral chute surface coating paint, to optimize the flow behavior of ore pulp in helicla flute, improves spiral chute for the rate of recovery of magnetic mineral.
Description
Technical field
The present invention relates to a kind of raising spiral chutes to the method for the magnetic mineral rate of recovery, belongs to mine ore dressing equipment and technology
Field.
Background technique
Spiral chute is a kind of gravitational separation equipment for being widely used in sorting mineral, be according to mineral grain helical surface by
To gravity, centrifugal force, flow dynamic and frictional force effect and carry out dividing band, the final sorting for carrying out mineral.Spiral shell
Rotation chute have many advantages, such as treating capacity greatly, investment is small, structure is simple, unpowered, easy to operate, thus be widely used in titanium,
Iron, tungsten, tin, tantalum, niobium etc. have the sorting of the mineral of difference of specific gravity, but since concentration ratio and the rate of recovery are low, are generally used only for selecting
The roughing stage of mine process.By analyzing its sorting for being applied to ilmenite, -0.074mm grade in spiral chute tailing is found
Middle titaniferous is higher, illustrates that common spiral chute is poor to fine-graded ilmenite recovering effect when sorting ilmenite, thus
Cause the rate of recovery of equipment low.
Summary of the invention
For the above-mentioned problems of the prior art and deficiency, the present invention provides a kind of raising spiral chute to magnetic mineral
The method of the rate of recovery.The present invention by changing the surface characteristic of spiral chute helicla flute in spiral chute surface coating paint, from
And optimize the flow behavior of ore pulp in helicla flute, spiral chute is improved for the rate of recovery of magnetic mineral.The present invention passes through following
Technical solution is realized.
A method of spiral chute is improved to the magnetic mineral rate of recovery, coats at least one line style on spiral chute surface
Then shape coating magnetizes according to line style shape coating line style trend, coating is 40~60%:15~25% by mass percent:
Nd-Fe-B powder, diamond dust, resin and the curing agent composition of 20~30%:5~15%.
The line style shape is that linear screw-pinch, involute shape or rifle are linear.
The intensity that magnetizes is 500~12000Gs.
Method of the above-mentioned raising spiral chute to the magnetic mineral rate of recovery specifically:
1, spiral chute used in production is rinsed well and is dried first；
2, the line of at least one line style shape is drawn on wash clean spiral chute surface, line style shape is that screw-pinch is linear, gradually opens
Linear or rifle is linear；
3, coat a coating on the line finished with existing conventional hairbrush, coating by mass percent be 40~
60:15~25:20~30:5~15 Nd-Fe-B powder, diamond dust, resin and curing agent composition；
4, after dope layer is dry, a strata ammoniacum wearing layer is painted in entire spiral groove surface；
5, it is finally magnetized using magnet charger to linear coated coating line style trend, the intensity that magnetizes is 500~12000Gs
It obtains improving rear screw slot (it is as shown in Figure 1 to improve rear screw slot transverse cross-sectional profile schematic diagram), which applies in magnetic
Property mineral during carry out recycling magnetic mineral, the magnetic mineral rate of recovery can be improved.
The beneficial effects of the present invention are:
1, due to containing NdFeB magnetic powder in coating, a downward magnetic can be generated to magnetic mineral in ore pulp after magnetizing
Power, magnetic mineral are easier to move to spiral groove surface (the especially magnetic mineral of -0.074mm grade), thus spiral shell after improvement
Rotation chute significantly improves the rate of recovery of magnetic mineral.
2, neodymium iron boron can generate stronger magnetic field strength, so that coating surface adsorbs one layer of magnetic mineral particles, thus shape
At at least one line style protrusion, heavy suite moves to outer ring during pulp quadric circulation when reducing spiral chute sorting,
The rate of recovery of spiral chute can be effectively improved；And magnetic mineral particles adsorb the protrusion to be formed, and can make ore pulp in helicla flute
Ring is in turbulent shape, increases the loose of ore pulp, improves the grade of concentrate end target minreal.
3, this method has the advantages that change is small, at low cost, quick, is easy to promote and apply in identical equipment.
Detailed description of the invention
Fig. 1 is that the present invention improves rear screw slot transverse cross-sectional profile schematic diagram；
Fig. 2 is screw-pinch threadiness schematic diagram of the present invention；
Fig. 3 is involute shape schematic diagram of the present invention；
Fig. 4 is that the present invention carrys out spoke threadiness schematic diagram.
In figure: 1- glass reinforced plastic helicla flute groove body, 2- line style magnetisable coating, 3- wear-resistant coating.
Specific embodiment
With reference to the accompanying drawings and detailed description, the invention will be further described.
Embodiment 1
Using BL-600 type twin-feed spiral chute used in laboratory as research object, screw pitch 360mm.
Method of the raising spiral chute to the magnetic mineral rate of recovery specifically:
1, spiral chute used in production is rinsed well and is dried first；
2,4 circles screw-pinch line (as shown in Figure 2) are drawn on wash clean spiral chute surface, the spacing of every line is
200mm,；
3, a coating is coated on the line finished with No. 1 nylon bristle (wide 12mm), coating is by mass percent
45%:20%:25%:10% Nd-Fe-B powder, diamond dust, epoxy resin and polyamide curing agent composition；
4, after dope layer is dry, a strata ammoniacum wearing layer is painted in entire spiral groove surface；
5, it is finally magnetized using magnet charger to linear coated coating line style trend, the intensity that magnetizes is that 6000Gs is changed
Into rear screw slot, which applies carries out recycling magnetic mineral during magnetic mineral, can improve magnetic mineral
The rate of recovery.
It could be used without improved BL-600 type twin-feed spiral chute and the improved BL-600 type double end spiral shell through above-mentioned steps
Rotation chute compares test, using TiO2Grade is the mineral of 7.5wt%, and control pulp density is 35%, and mine-supplying quantity is
0.08L/s passes through no improved BL-600 type twin-feed spiral chute and the improved BL-600 type double end through above-mentioned steps respectively
Spiral chute is sorted, and final test result shows that concentrate end index is in no improved BL-600 type twin-feed spiral chute
TiO2Grade 23.07wt%, the rate of recovery 62.07%；Concentrate in improved BL-600 type twin-feed spiral chute through above-mentioned steps
End index is TiO2Grade 25.07%, the rate of recovery 68.13%.
Embodiment 2
Using three spiral chutes of 5LL-1200 type used in certain regional ilmenite of Wuding, Yunnan as research object, screw pitch
For 720mm.
To the method for the magnetic mineral rate of recovery specifically:
1, three, this 5LL-1200 type helicla flute of spiral chute three is washed with water completely, then sunning is dry stand-by；
2, first helicla flute is not crossed；Second helicla flute draws 12 involutes (as shown in Figure 3), between every line outer end
Away from for 200mm；Third helicla flute is drawn 12 and is come spoke lines (as shown in Figure 4), and every line outer end spacing is 200mm；
3, it is coated on the line that second helicla flute, third helicla flute are finished respectively with No. 3 nylon bristles (wide 24mm)
One coating, coating are that 45%:20%:25%:10% Nd-Fe-B powder, diamond dust, epoxy resin and polyamide are consolidated by mass percent
Agent composition；
4, after dope layer is dry, a strata ammoniacum wearing layer is painted in entire spiral groove surface；
5, it is finally magnetized using magnet charger to linear coated coating line style trend, the intensity that magnetizes is that 6000Gs is changed
Into rear screw slot, which applies carries out recycling magnetic mineral during magnetic mineral, can improve magnetic mineral
The rate of recovery.
Feed ore concentration, mine-supplying quantity, the head grade of three helicla flutes of one spiral chute are all the same, respectively 30%,
0.07L/s and 7.82%, the index that first helicla flute concentrate end obtains are TiO2Grade is 26.73wt%, and the rate of recovery is
55.14%；The index that second helicla flute concentrate end obtains is TiO2Grade is 28.47wt%, the rate of recovery 65.07%；Third
It is TiO that helicla flute concentrate, which obtains index,2Grade is 28.12wt%, the rate of recovery 64.12%.
Embodiment 3
Using BL-600 type twin-feed spiral chute used in laboratory as research object, screw pitch 360mm.
Method of the raising spiral chute to the magnetic mineral rate of recovery specifically:
1, spiral chute used in production is rinsed well and is dried first；
2,4 circles screw-pinch line (as shown in Figure 2) are drawn on wash clean spiral chute surface, the spacing of every line is
200mm,；
3, a coating is coated on the line finished with No. 1 nylon bristle (wide 12mm), coating is 60% by mass ratio:
Nd-Fe-B powder, diamond dust, epoxy resin and the polyamide curing agent composition of 15%:20%:5%；
4, after dope layer is dry, a strata ammoniacum wearing layer is painted in entire spiral groove surface；
5, it is finally magnetized using magnet charger to linear coated coating line style trend, the intensity that magnetizes is that 500Gs is changed
Into rear screw slot, which applies carries out recycling magnetic mineral during magnetic mineral, can improve magnetic mineral
The rate of recovery.
Embodiment 4
Using BL-600 type twin-feed spiral chute used in laboratory as research object, screw pitch 360mm.
Method of the raising spiral chute to the magnetic mineral rate of recovery specifically:
1, spiral chute used in production is rinsed well and is dried first；
2,4 circles screw-pinch line (as shown in Figure 2) are drawn on wash clean spiral chute surface, the spacing of every line is
200mm,；
3, a coating is coated on the line finished with No. 1 nylon bristle (wide 12mm), coating is 40:25 by mass ratio:
Nd-Fe-B powder, diamond dust, epoxy resin and the polyamide curing agent composition of 30:15；
4, after dope layer is dry, a strata ammoniacum wearing layer is painted in entire spiral groove surface；
5, it is finally magnetized using magnet charger to linear coated coating line style trend, the intensity that magnetizes obtains for 12000Gs
Rear screw slot is improved, which applies carries out recycling magnetic mineral during magnetic mineral, can improve magnetic mine
The object rate of recovery.
In conjunction with attached drawing, the embodiment of the present invention is explained in detail above, but the present invention is not limited to above-mentioned
Embodiment within the knowledge of a person skilled in the art can also be before not departing from present inventive concept
Put that various changes can be made.
Claims (1)
1. a kind of spiral chute that improves is to the method for the magnetic mineral rate of recovery, it is characterised in that: spiral chute surface coat to
Then few line style shape coating magnetizes according to line style shape coating line style trend, coating by mass percent be 40~
60%:15~25%:20~30%:5~15% Nd-Fe-B powder, diamond dust, resin and curing agent composition；
The line style shape is that screw-pinch is linear or rifle is linear；
Spiral chute is improved to the method for the magnetic mineral rate of recovery specifically:
(1), spiral chute used in production is rinsed well and is dried first；
(2), the line of at least one line style shape is drawn on wash clean spiral chute surface, line style shape is screw-pinch threadiness or rifle
It is linear；
(3), a coating is coated on the line finished with existing conventional hairbrush, coating is 40~60 by mass percent:
15~25:20~30:5~15 Nd-Fe-B powder, diamond dust, resin and curing agent composition；
(4), after dope layer is dry, a strata ammoniacum wearing layer is painted in entire spiral groove surface；
(5), it is finally magnetized using magnet charger to linear coated coating line style trend, the intensity that magnetizes is that 500~12000Gs is obtained
To rear screw slot is improved, which applies carries out recycling magnetic mineral during magnetic mineral, can improve magnetism
Mineral recovery rate；
Line style magnetisable coating is convex body coating, and two lines type magnetism convex body applies the glass reinforced plastic helicla flute groove body of interlayer as plane painting
Layer, that is, form convex, recessed interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138863.0A CN106583021B (en) | 2016-12-12 | 2016-12-12 | A method of spiral chute is improved to the magnetic mineral rate of recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138863.0A CN106583021B (en) | 2016-12-12 | 2016-12-12 | A method of spiral chute is improved to the magnetic mineral rate of recovery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106583021A CN106583021A (en) | 2017-04-26 |
| CN106583021B true CN106583021B (en) | 2019-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6336559B1 (en) * | 1999-11-24 | 2002-01-08 | Outokumpu Oyj | Spiral separator with replaceable trough sections |
| CN2796839Y (en) * | 2005-05-26 | 2006-07-19 | 中南大学 | Magnetic force screw slide groove separation machine |
| CN201744395U (en) * | 2009-12-31 | 2011-02-16 | 李大伦 | Whirly elutriation spiral separator |
| CN103409054A (en) * | 2013-08-26 | 2013-11-27 | 昆明梵阗盛科技有限公司 | Magnetic paint |
| CN103691547A (en) * | 2014-01-05 | 2014-04-02 | 昆明梵阗盛科技有限公司 | Magnetic mineral chute separator |
| CN203663985U (en) * | 2014-01-05 | 2014-06-25 | 昆明梵阗盛科技有限公司 | Chute sorting machine of magnetic mineral |
| CN203803640U (en) * | 2014-03-12 | 2014-09-03 | 昆明理工大学 | Gravity-magnetism combined ore dressing device |
| CN104923381A (en) * | 2015-06-30 | 2015-09-23 | 辽宁科技大学 | Complex force field spiral chute for ore dressing |
| CN205462691U (en) * | 2016-01-28 | 2016-08-17 | 清远市金盛锆钛资源有限公司 | Ore dressing is with compound field of force spiral chute |
-
2016
- 2016-12-12 CN CN201611138863.0A patent/CN106583021B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6336559B1 (en) * | 1999-11-24 | 2002-01-08 | Outokumpu Oyj | Spiral separator with replaceable trough sections |
| CN2796839Y (en) * | 2005-05-26 | 2006-07-19 | 中南大学 | Magnetic force screw slide groove separation machine |
| CN201744395U (en) * | 2009-12-31 | 2011-02-16 | 李大伦 | Whirly elutriation spiral separator |
| CN103409054A (en) * | 2013-08-26 | 2013-11-27 | 昆明梵阗盛科技有限公司 | Magnetic paint |
| CN103691547A (en) * | 2014-01-05 | 2014-04-02 | 昆明梵阗盛科技有限公司 | Magnetic mineral chute separator |
| CN203663985U (en) * | 2014-01-05 | 2014-06-25 | 昆明梵阗盛科技有限公司 | Chute sorting machine of magnetic mineral |
| CN203803640U (en) * | 2014-03-12 | 2014-09-03 | 昆明理工大学 | Gravity-magnetism combined ore dressing device |
| CN104923381A (en) * | 2015-06-30 | 2015-09-23 | 辽宁科技大学 | Complex force field spiral chute for ore dressing |
| CN205462691U (en) * | 2016-01-28 | 2016-08-17 | 清远市金盛锆钛资源有限公司 | Ore dressing is with compound field of force spiral chute |
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| CN106583021A (en) | 2017-04-26 |
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