CN110252506A - Sorting mineral equipment based on resultant field - Google Patents
Sorting mineral equipment based on resultant field Download PDFInfo
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- CN110252506A CN110252506A CN201910594112.7A CN201910594112A CN110252506A CN 110252506 A CN110252506 A CN 110252506A CN 201910594112 A CN201910594112 A CN 201910594112A CN 110252506 A CN110252506 A CN 110252506A
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- spiral chute
- magnetic
- sorting
- resultant field
- spiral
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- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 50
- 239000011707 mineral Substances 0.000 title claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 62
- 238000005452 bending Methods 0.000 claims description 59
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000012141 concentrate Substances 0.000 abstract description 21
- 239000002245 particle Substances 0.000 abstract description 16
- 239000010419 fine particle Substances 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 16
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- FWQHNLCNFPYBCA-UHFFFAOYSA-N fluoran Chemical compound C12=CC=CC=C2OC2=CC=CC=C2C11OC(=O)C2=CC=CC=C21 FWQHNLCNFPYBCA-UHFFFAOYSA-N 0.000 description 4
- 239000006249 magnetic particle Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
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- 235000013399 edible fruits Nutrition 0.000 description 3
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- 238000012986 modification Methods 0.000 description 3
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- 230000001154 acute effect Effects 0.000 description 2
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- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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Classifications
-
- 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
- B03B5/626—Helical separators
-
- 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
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- 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
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
Landscapes
- Sorting Of Articles (AREA)
Abstract
This disclosure relates to material sorting technology field, propose a kind of sorting mineral equipment based on resultant field, including spiral chute and magnetic system, the lower section of the part for being at least partially disposed at spiral chute of magnetic system, the magnetic field strength that magnetic system acts on spiral chute are gradually weakened by the inside of spiral chute to the outside of spiral chute.The sorting mineral equipment based on resultant field of the disclosure is by the way that magnetic system to be applied in spiral chute, when sorting material moves sorting along the extending direction of spiral chute, magnetic system generate magnetic field force act in spiral chute on sorting material, when the field region formed when sorting material by magnetic system, magnetic or sub-magnetic debris is by overall inside magnetic force, so that inside of magnetic or sub-magnetic debris the distributed areas closer to spiral chute, to enhance magnetic or sub-magnetic debris and gangue particle along point band distribution trend of the groove face of spiral chute, improve the rate of recovery of the magnetic or weak magnetic fine particle in concentrate.
Description
Technical field
This disclosure relates to material sorting technology field more particularly to a kind of sorting mineral equipment based on resultant field.
Background technique
Spiral chute is a kind of film concentration equipment, and dressing plant is commonly used to graded shot metallic ore.Spiral chute cross section
Outside, the inside recycle stream of bottom that there are upper layers in flow field is selected in metallic ore particulate in equipment interior flow field mainly by gravity, floating
Power, centrifugal force, frictional force, fluid resistance and the effect of equipment wall surface holding power.It is generally acknowledged that pan feeding particle completes longitudinal point first
Layer, coarse particles tend to be distributed in lower layer in the process, and light fine grained is mainly distributed on upper layer；Spiral shell is being done downwards along groove face
It revolves in motion process, the frictional force between light fine grained and groove face is small, and the fluid inwardly flowed takes spiral chute cross section to
Inside；Frictional force between coarse particles and groove face is larger, outside is mainly distributed on, so that all pan feeding particles are along spiral
A point band distribution is gradually realized in chute groove face flow process.
Ideally, different pan feeding particles are followed successively by (from inside to outside) in groove face point with the sequence of distribution: high density is thin
Grain, high density coarse grain, low-density particulate, low-density coarse grain, outermost is thin mud.However in practical sorting, spiral chute point
Selecting existing main problem is that high density particulate is easy to mix in chats and tailing, and fine fraction concentrate is caused to lose, and low-density
Coarse grain is easy to mix in concentrate, causes concentrate product overall grain size bigger than normal, and grade reduces.
Summary of the invention
One main purpose of the disclosure is to overcome the problems, such as that the spiral chute separating effect of the above-mentioned prior art is poor,
A kind of sorting mineral equipment based on resultant field is provided.
The sorting mineral equipment based on resultant field that the present invention provides a kind of, comprising:
Spiral chute；
Magnetic system, the lower section of the part for being at least partially disposed at spiral chute of magnetic system, magnetic system act on the magnetic field of spiral chute
Intensity is gradually weakened by the inside of spiral chute to the outside of spiral chute.
In one embodiment of the invention, the interior lateral spiral of at least part of extending direction and spiral chute of magnetic system
The extending direction in the outside of chute is consistent.
In one embodiment of the invention, the inner surface of spiral chute includes spiral chute bottom surface and is connected to spiral and slips
The spiral chute medial surface and spiral chute lateral surface at groove bottom both ends；
Wherein, projection of the part of spiral chute medial surface in the magnetic system being disposed below is located at the inside of magnetic system.
In one embodiment of the invention, projection of the part of spiral chute lateral surface in the magnetic system being disposed below
Positioned at the inside of magnetic system.
In one embodiment of the invention, magnetic system is electromagnet, and electromagnet includes:
Iron core；
Coil, coil are wrapped on iron core, for receiving electric current；
Wherein, width of the iron core close to one end of the inside of spiral chute is less than iron core close to the another of the outside of spiral chute
The width of one end, so that electromagnet acts on the magnetic field strength of spiral chute by the inside to the outside of spiral chute of spiral chute
Gradually weaken.
In one embodiment of the invention, the width of iron core is from one end of the inside close to spiral chute to close to spiral
The other end in the outside of chute gradually expands.
In one embodiment of the invention, iron core includes:
Main paragraph, main paragraph are located at the lower section of the part of spiral chute, and coil is wrapped on main paragraph；
First bending segment, the first bending segment are connected with one end of main paragraph, and the first bending segment is located at the interior of spiral chute
Side.
In one embodiment of the invention, the first bending segment is the first L-type segment body, between the first bending segment and main paragraph
With the first U-shaped cavity；
Wherein, the end of the first bending segment is oppositely arranged with spiral chute.
In one embodiment of the invention, iron core further include:
Second bending segment, the second bending segment are connected with main paragraph far from the other end of the first bending segment, the second bending segment
Positioned at the outside of spiral chute；
Wherein, the width of one end that main paragraph is connected with the first bending segment is less than main paragraph and is connected with the second bending segment
The other end width.
In one embodiment of the invention, the first bending segment is oppositely arranged with the second bending segment, and the second bending segment is the
Two L-type segment bodies have the second U-shaped cavity between the second bending segment and main paragraph；
Wherein, the end of the second bending segment is oppositely arranged with spiral chute.
In one embodiment of the invention, there is default angle between the magnetic line of force of magnetic system and the groove face of spiral chute,
Default angle is acute angle, and the magnetic line of force tilts upwards relative to the groove face of spiral chute.
In one embodiment of the invention, magnetic system is multiple, the sorting mineral equipment based on resultant field further include:
Bracket, bracket include braced frame and the support rod that is arranged in the middle part of braced frame, and spiral chute is around support rod
Setting；
Wherein, multiple magnetic systems are spaced apart and arranged on support rod.
In one embodiment of the invention, the sorting mineral equipment based on resultant field further include:
The inside of spiral chute is arranged in stopper section, stopper section, for along spiral chute move to sorting material phase
Contact.
In one embodiment of the invention, the inner surface of spiral chute includes spiral chute bottom surface and is connected to spiral and slips
The spiral chute medial surface and spiral chute lateral surface at groove bottom both ends, stopper section are bar shaped bar, in bar shaped bar and spiral chute
Side is connected with spiral chute lateral surface.
In one embodiment of the invention, stopper section is multiple, and multiple stopper sections are set along the extending direction of spiral chute
It sets.
In one embodiment of the invention, the sorting mineral equipment based on resultant field further include:
Jet water spout, jet water spout are arranged on spiral chute, for being sent into water to sorting material on spiral chute
Stream.
In one embodiment of the invention, the inner surface of spiral chute includes spiral chute bottom surface and is connected to spiral and slips
The water outlet of the spiral chute medial surface and spiral chute lateral surface at groove bottom both ends, jet water spout is located at spiral chute medial surface
On, the center line of water outlet is tilted down to be arranged in spiral chute bottom surface.
In one embodiment of the invention, jet water spout is multiple, and multiple jet water spouts are set along the extending direction of spiral chute
It sets.
Sorting mineral equipment based on resultant field of the invention is by the way that magnetic system to be applied in spiral chute, i.e., wait divide
When material being selected to move sorting along the extending direction of spiral chute, magnetic system generate magnetic field force act in spiral chute to
On sorting material, and magnetic system act on the magnetic field strength of spiral chute by the inside of spiral chute to the outside of spiral chute gradually
Weaken, i.e., when the field region formed when sorting material by magnetic system, magnetic or sub-magnetic debris is by overall inside magnetic
Power, so that inside of magnetic or sub-magnetic debris the distributed areas closer to spiral chute, to enhance magnetic or weak magnetic
Property particle and gangue particle along point band distribution trend of the groove face of spiral chute, improve magnetic or weak magnetic fine particle in concentrate
The rate of recovery.
Detailed description of the invention
The detailed description of the following preferred embodiment to the disclosure, the various mesh of the disclosure are considered in conjunction with the accompanying drawings
Mark feature and advantage will become apparent.Attached drawing is only the exemplary diagram of the disclosure, is not necessarily to draw in proportion
System.In the accompanying drawings, same appended drawing reference always shows same or similar component.Wherein:
Fig. 1 is that a kind of structure of sorting mineral equipment based on resultant field shown according to an illustrative embodiments is shown
It is intended to；
Fig. 2 is a kind of magnetic of sorting mineral equipment based on resultant field shown according to an exemplary first embodiment
Architecture schematic diagram；
Fig. 3 is a kind of magnetic of sorting mineral equipment based on resultant field shown according to an exemplary second embodiment
Architecture schematic diagram.
The reference numerals are as follows:
10, spiral chute；11, spiral chute bottom surface；12, spiral chute medial surface；13, spiral chute lateral surface；14, into
Material mouth；15, discharge port；20, magnetic system；21, iron core；211, main paragraph；212, the first bending segment；213, the second bending segment；22, line
Circle；30, bracket；31, braced frame；32, support rod；40, stopper section；50, jet water spout；60, image acquisition part；61, gob interceptor；
611, expects pipe；62, light compensating lamp；70, control system；71, control terminal；72, exciting current controller；80, feed system；81, it gives
Material pump；82, frequency converter；83, feeding material component；84, dispenser；85, feeding pipe；86, flowmeter；90, feed pond.
Specific embodiment
The exemplary embodiments for embodying disclosure features and advantages will describe in detail in the following description.It should be understood that this
Open can have various variations in different embodiments, all not depart from the scope of the present disclosure, and it is therein illustrate and
Attached drawing is inherently illustrative, rather than to limit the disclosure.
It in being described below the different illustrative embodiments to the disclosure, is carried out referring to attached drawing, attached drawing forms this public affairs
The a part opened, and the different exemplary structure system of many aspects of the achievable disclosure is wherein shown by way of example
System and step.It should be understood that other specified schemes of component structure exemplary means system and step can be used, and
And structural and functional modification can be carried out without departing from disclosure range.Although moreover, can be used in this specification
Term " on " " between " " within " etc. the different example features and element of the disclosure are described, but these terms are used for
Herein merely for convenient, for example, with reference to the accompanying drawings in exemplary direction.Any content in this specification is not necessarily to be construed that
The specific three dimensional direction of Structure of need is just fallen within the scope of the disclosure.
The sorting mineral equipment based on resultant field that An embodiment provides a kind of please refers to Fig. 1 to figure
3, the sorting mineral equipment based on resultant field includes: spiral chute 10；The spiral that is at least partially disposed at of magnetic system 20, magnetic system 20 is slipped
The lower section of the part of slot 10, magnetic system 20 act on the magnetic field strength of spiral chute 10 by the inside of spiral chute 10 to spiral chute
Gradually weaken in 10 outside.
The sorting mineral equipment based on resultant field of one embodiment of the invention is by slipping magnetic system 20 applied to spiral
In slot 10, i.e., in the magnetic field force effect that when sorting material moves sorting along the extending direction of spiral chute 10, magnetic system 20 is generated
In be located in spiral chute 10 on sorting material, and magnetic system 20 acts on the magnetic field strength of spiral chute 10 by spiral chute
10 inside is gradually weakened to the outside of spiral chute 10, i.e., when the field region formed when sorting material by magnetic system 20,
Magnetic or sub-magnetic debris is by overall inside magnetic force, so that magnetic or sub-magnetic debris distributed areas are closer to spiral
The inside of chute 10, to enhance magnetic or sub-magnetic debris and gangue particle along point band distribution of the groove face of spiral chute 10
Trend improves the rate of recovery of the magnetic or weak magnetic fine particle in concentrate, solves spiral chute sorting effect in the prior art
The poor problem of fruit.
In one embodiment, the part of spiral chute 10 indicates the partial groove section of spiral chute 10, that is, considers spiral
The whole helically mode of chute 10 extends, and a magnetic system 20 can be positioned at the lower section of a certain section of spiral chute 10, it can reason
Solution is that magnetic system 20 is located between 10 both ends of spiral chute.
In one embodiment, spiral chute 10 includes the discharge port 15 of the feed inlet 14 for charging and discharging, i.e. magnetic
It is 20 between feed inlet 14 and discharge port 15, forms field region between feed inlet 14 and discharge port 15.
For the positional relationship of spiral chute 10 and magnetic system 20, at least part of extending direction and spiral chute of magnetic system 20
The extending direction in the outside of 10 interior lateral spiral chute 10 is consistent.The position of magnetic system 20 belongs to the width across spiral chute 10
Direction is spent, i.e. extending direction is consistent with the width direction of spiral chute 10, inside and the spiral chute 10 of spiral chute 10
Outside is mainly for the circular center of spiral chute 10, close to the circular center of spiral chute 10
It is the inside of spiral chute 10, is the outside of spiral chute 10 far from the circular center of spiral chute 10.
For the groove face composition of spiral chute 10, as shown in Figures 2 and 3, the inner surface of spiral chute 10 includes that spiral is slipped
Groove bottom 11 and the spiral chute medial surface 12 and spiral chute lateral surface 13 for being connected to 11 both ends of spiral chute bottom surface；Wherein,
Projection of the part of spiral chute medial surface 12 in the magnetic system 20 being disposed below is located at the inside of magnetic system 20.
In one embodiment, the groove face of spiral chute 10, i.e., the inner surface of spiral chute 10 is by spiral chute bottom surface 11
With spiral chute medial surface 12 and spiral chute lateral surface 13 composition for being connected to 11 both ends of spiral chute bottom surface, wherein spiral
Chute medial surface 12 is close to the side of the inside of spiral chute 10, and spiral chute lateral surface 13 is close to the outer of spiral chute 10
The side of side.In order to guarantee that spiral chute medial surface 12 is located in field region, therefore, the part of spiral chute medial surface 12
Projection in the magnetic system 20 being disposed below is located at the inside of magnetic system 20, i.e. the extending direction of one end of magnetic system 20 spans spiral shell
Chute medial surface 12 is revolved, one end of magnetic system 20 can be construed to apart from the circular center of spiral chute 10 than in spiral chute
Side 12 is closer apart from the circular center of spiral chute 10.
In one embodiment, due to magnetic system 20 be only be oppositely arranged with the spiral chute 10 of part, therefore, in spiral chute
Projection of the part of side 12 in the magnetic system 20 being disposed below is located at the inside of magnetic system 20.If from the point of view of overall structure,
The position of one magnetic system 20 is to be likely located at 10 a certain sections of spiral chute of lower section, relative to another section may be exactly above,
It is only the bottom surface for considering the spiral chute 10 acted between magnetic system 20 herein.
Optionally, projection of the part of spiral chute lateral surface 13 in the magnetic system 20 being disposed below is located at magnetic system 20
It is internal.Along some rectilinear direction, when the both ends of magnetic system 20 are located on the outside of spiral chute medial surface 12 and spiral chute
When the outside in face 13, a certain section of groove face of spiral chute 10 will be located in the field region that magnetic system 20 is formed, so that magnetic
Property or sub-magnetic debris by overall inside magnetic force so that magnetic or sub-magnetic debris distributed areas are slipped closer to spiral
The inside of slot 10.
For the specific structure of magnetic system 20, as shown in Figures 2 and 3, magnetic system 20 is electromagnet, and electromagnet includes: iron core 21；
Coil 22, coil 22 is wrapped on iron core 21, for receiving electric current；Wherein, iron core 21 close to the inside of spiral chute 10 one
The width at end is less than iron core 21 close to the width of the other end in the outside of spiral chute 10, so that electromagnet acts on spiral chute
10 magnetic field strength is gradually weakened by the inside of spiral chute 10 to the outside of spiral chute 10.
In one embodiment, magnetic system 20 is electromagnet, i.e. magnetic field force caused by magnetic system 20 has foreign current to be controlled
System, in order to make electromagnet act on the magnetic field strength of spiral chute 10 by the inside of spiral chute 10 to spiral chute 10
Outside gradually weaken so that iron core 21 close to one end of the inside of spiral chute 10 width be less than iron core 21 close to spiral
The width of the other end in the outside of chute 10, one end magnetic density of the iron core 21 close to the inside of spiral chute 10 is relatively large,
So that magnetic or sub-magnetic debris is by overall inside magnetic force.
In one embodiment, the width of iron core 21 is from one end of the inside close to spiral chute 10 to close to spiral chute
The other end in 10 outside gradually expands.Similar to a fan-shaped surface, i.e., the projection of iron core 21 in the horizontal plane is formed by plane
The width of two end faces is inconsistent.
For the specific constructive form of iron core 21, as depicted in figs. 1 and 2, iron core 21 includes: main paragraph 211, main paragraph
211 are located at the lower section of the part of spiral chute 10, and coil 22 is wrapped on main paragraph 211；First bending segment 212, the first bending
Section 212 is connected with one end of main paragraph 211, and the first bending segment 212 is located at the inside of spiral chute 10.
In one embodiment, iron core 21 is made of main paragraph 211 and the first bending segment 212, and main paragraph 211 is for winding
Coil 22, and be located at the lower section of the part of spiral chute 10, and the first bending segment 212 is located at the inside of spiral chute 10, i.e., its
It is oppositely arranged in the side of spiral chute 10, at this point, a side of iron core 21 is bent to a direction.
In one embodiment, the first bending segment 212 is the first L-type segment body, the first bending segment 212 and main paragraph 211 it
Between have the first U-shaped cavity；Wherein, the end of the first bending segment 212 is oppositely arranged with spiral chute 10.
Further, as shown in Fig. 2, iron core 21 further include: the second bending segment 213, the second bending segment 213 and main paragraph
211 other ends far from the first bending segment 212 are connected, and the second bending segment 213 is located at the outside of spiral chute 10；Wherein, main
The width of one end that body section 211 is connected with the first bending segment 212 is less than what main paragraph 211 was connected with the second bending segment 213
The width of the other end.
In one embodiment, iron core 21 is made of the first bending segment 212, main paragraph 211 and the second bending segment 213,
First bending segment 212 and the second bending segment 213 are located at the both ends of main paragraph 211.
In one embodiment, the first bending segment 212 is oppositely arranged with the second bending segment 213, and the second bending segment 213 is the
Two L-type segment bodies have the second U-shaped cavity between the second bending segment 213 and main paragraph 211；Wherein, the end of the second bending segment 213
It is oppositely arranged with spiral chute 10.
For one embodiment of iron core 21, as shown in Fig. 2, the top view of iron core 21 is fan-shaped, the left and right of iron core 21
Both ends are all bent upwards, and left end is narrow, right end is wide, magnetic induction line from left end be directed toward right end (or right end be directed toward left end, with coil wind
Direction is related), and the magnetic strength line density near the groove face of the spiral chute 10 of left end is greater than the spiral chute close to right end
Magnetic strength line density near 10 groove face.It, will be by one to the left during magnetic-particle flows downward along spiral chute groove face
Magnetic field force effect, make its be easier to tend to spiral chute 10 inside distribution, to be separated with non-magnetic particle.
For second embodiment of iron core 21, as shown in figure 3, iron core 21 only has left end to be bent upwards, and top view
Fan-shaped, the small right end in iron core cross section left end is big, generate magnetic induction line and to magnetic-particle movement influence and Fig. 2 shown in electricity
Magnet is similar.
Magnetic-particle stress in magnetic field can be calculated as follows:
fm=μ0VKHgradH
μ0For space permeability, H/m；V is particle volume, m3；K is granulated magnetic coefficient；H is that the background magnetic field of particle is strong
Degree, A/m；Grad H is spatial field gradient.
In one embodiment, there is default angle between the groove face of the magnetic line of force and spiral chute 10 of magnetic system 20, preset
Angle is acute angle, and the magnetic line of force tilts upwards relative to the groove face of spiral chute 10.Slot of the magnetic system 20 relative to spiral chute 10
Face forms upward magnetic field force, i.e., it can provide a upward power to sorting material, so as to reduce wait sort
Frictional force between material and the groove face of spiral chute 10, improves separating effect to a certain extent, wherein the model of default angle
Enclosing can choose as between 0 degree to 25 degree.
In one embodiment, magnetic system 20 is multiple, the sorting mineral equipment based on resultant field further include: bracket 30,
Bracket 30 includes braced frame 31 and the support rod 32 that 31 middle part of braced frame is arranged in, and spiral chute 10 is set around support rod 32
It sets；Wherein, multiple magnetic systems 20 are spaced apart and arranged on support rod 32.By the way that multiple magnetic systems 20 are spaced apart and arranged in support rod 32
On, i.e., multiple magnetic systems 20 at different positions can magnetic generating field domain, can integrally optimize entire assorting room.
In one embodiment, the position of support rod 32 can be understood as the center of spiral chute 10, and magnetic system 20
It is arranged on support rod 32, the magnetic field line that magnetic system 20 generates can be considered as to a circular radial line in some space.
In one embodiment, the sorting mineral equipment based on resultant field further include: stopper section 40, stopper section 40 are arranged
In the inside of spiral chute 10, for being in contact with what is moved along spiral chute 10 to sorting material.To sorting material along spiral
When encountering stopper section 40 in the groove face motion process of chute 10, in sorting material because magnetic fields formed magnetic group in backstop
Portion 40 is formed by turbulent vortices and falling the lower generation of effect loosely from 40 surface of stopper section to groove face, wherein the arteries and veins being mingled with
Stone particle is released, and is moved again along groove face, is realized a point band distribution, is mingled with to reduce gangue in magnetic group to essence
The pollution of mine.
In one embodiment, the inner surface of spiral chute 10 includes spiral chute bottom surface 11 and is connected to spiral chute bottom
The spiral chute medial surface 12 and spiral chute lateral surface 13 at 11 both ends of face, stopper section 40 are bar shaped bar, and bar shaped bar is slipped with spiral
Slot medial surface 12 is connected with spiral chute lateral surface 13.Stopper section 40 is located on spiral chute bottom surface 11, and and spiral chute
Medial surface 12 and spiral chute lateral surface 13 are all connected with, i.e., it is divided the groove face of spiral chute 10, but it will not shadow
It rings to the normal movement to sorting material.
In one embodiment, bar shaped bar can be an angular rod, i.e., is encircled a city, contacted first wait sort by three surfaces
The face of material is fluoran stream surface, and one of surface is bonded with spiral chute bottom surface 11, fluoran stream surface corresponding sides and spiral chute bottom surface
11 angular range section is (0,90), and in addition one side is vertical with spiral chute bottom surface 11.
Optionally, stopper section 40 is multiple, and multiple stopper sections 40 are arranged along the extending direction of spiral chute 10.Wherein, two
A stopper section 40 can be disposed adjacent, can be formed with spiral chute 10 one it is 3 angular.
In one embodiment, as shown in Figure 1, the sorting mineral equipment based on resultant field further include: jet water spout 50, punching
Water pipe 50 is arranged on spiral chute 10, for being sent into water flow to sorting material on spiral chute 10.Jet water spout 50
Arrangement the thin mud that the inside of spiral chute 10 is moved in assorting room can be flushed to outside, reduce concentrate in thin mud contain
Amount.
Optionally, the inner surface of spiral chute 10 includes spiral chute bottom surface 11 and is connected to 11 both ends of spiral chute bottom surface
Spiral chute medial surface 12 and spiral chute lateral surface 13, the water outlet of jet water spout 50 is located on spiral chute medial surface 12,
The center line of water outlet is tilted down to be arranged in spiral chute bottom surface 11.
Optionally, jet water spout 50 is multiple, and multiple jet water spouts 50 are arranged along the extending direction of spiral chute 10.
In one embodiment, the magnitude of field intensity that magnetic system 20 acts on spiral chute 10 is adjustably arranged, and is based on
The sorting mineral equipment of resultant field further includes image acquisition part 60, and image acquisition part 60 is used to obtain the material strip point of discharge port 15
Cloth image information.
In one embodiment, it can be determined by the material strip distributed image information that image acquisition part 60 obtains discharge port 15
When distribution situation of the sorting material when reaching discharge port 15, so as to analyze its distribution situation, then basis is divided
The effect of result confirmation sorting is selected, and the magnitude of field intensity that magnetic system 20 acts on spiral chute 10 directly influences the effect of sorting
Fruit, it is possible to according to material strip distributed image information come accordingly adjust magnetic system 20 act on spiral chute 10 magnetic field strength it is big
It is small, guarantee that separating effect reaches optimum state with this, and can rationally utilize magnetic field strength, is unlikely to waste electric power.The present invention
Sorting quality, and image can be improved by the setting of magnetic system 20 in the sorting mineral equipment based on resultant field of one embodiment
The magnitude of field intensity of magnetic system 20 can also be adjusted in the setting in acquisition portion 60.
For the specific choice of magnetic system 20, magnetic system 20 is electromagnet, and electromagnet includes iron core 21 and is wrapped on iron core 21
Coil 22, the sorting mineral equipment based on resultant field further include: control system 70, control system 70 and image acquisition part 60
It is all connected with coil 22, to receive the material strip distributed image information of the acquisition of image acquisition part 60, and is believed according to material strip distributed image
Breath adjusts the size of current of input coil 22.
In one embodiment, by the way that control system 70 and image acquisition part 60 and coil 22 to be all connected with, i.e., control is
System 70 has the function of receiving analysis material strip distributed image information, and can also adjust input line by specifically analyzing result
The size of current of circle 22.
For the concrete composition of control system 70, as shown in Figure 1, control system 70 includes: control terminal 71, control terminal 71 with
Image acquisition part 60 is connected, to receive and analyze material strip distributed image information；Exciting current controller 72, control terminal 71 and swash
It encourages current controller 72 to be connected, exciting current controller 72 is connected with coil 22；Wherein, control terminal 71 analyzes material strip distribution
For image information to issue action signal, exciting current controller 72 receives action signal, and adjusts input line according to action signal
The size of current of circle 22.
In one embodiment, control system 70 is made of control terminal 71 and exciting current controller 72, control system 70
For receiving and analyzing material strip distributed image information, the result after analysis is then transferred to exciting current controller 72, is swashed
The size of current for being input to coil 22 can be adjusted based on the analysis results by encouraging current controller 72.Assuming that when separation unit is thorough, it can
With due regard to increase electric current, and separating effect is preferably, can also suitably reduce, and reduces electricity consumption with this.
In view of the practical application of the sorting mineral equipment based on resultant field, as shown in Figure 1, the mine based on resultant field
Object screening installation further includes feed system 80, and feed system 80 includes: feed pump 81, and feed pump 81 with feed pond 90 for being connected
It is logical；Frequency converter 82, frequency converter 82 are connected with feed pump 81；Feeding material component 83, one end and 81 phase of feed pump of feeding material component 83
Connection, the other end of feeding material component 83 are connected with feed inlet 14, so that feed pump 81 passes through feeding material component 83 for feed pond 90
Interior is sent into spiral chute 10 to sorting material；Wherein, control system 70 is connected with frequency converter 82.
In one embodiment, the rate of feed of feed system 80 also can between influence sorting effect therefore, lead to herein
It crosses control system 70 to be connected with the frequency converter 82 of feed system 80, be tied according to direction acquired in material strip distributed image information
Fruit adjusts accordingly the rate of feed of feed system 80.
In one embodiment, frequency converter 82 directly control that feed pump 81 extracts out of feed pond 90 to sorting material
Efficiency and the feeding amount for being sent to spiral chute 10, therefore, it needs to adjust frequency converter 82 by control system 70, be reached with this
Adjusting control to rate of feed.
For the specific structure of feeding material component 83, as shown in Figure 1, feeding material component 83 includes: dispenser 84, dispenser 84
Material feeding end is located at the top of feed inlet 14；One end of feeding pipe 85, feeding pipe 85 is connected with feed pump 81, feeding pipe 85 it is another
One end is connected with dispenser 84；Wherein, flowmeter 86 is provided on feeding pipe 85, flowmeter 86 is connected with control system 70
It connects, with to 70 feed flow information of control system.
In one embodiment, feeding material component 83 is made of dispenser 84 and feeding pipe 85, and feeding pipe 85 is used for will be wait divide
It selects material to be sent to dispenser 84 from feed pump 81, spiral chute 10 is then sent to by dispenser 84.
In one embodiment, the main purpose that flowmeter 86 is connected with control system 70 is that controller is allowed to obtain in real time
Rate of feed is got, then after sorting material strip distributed image information, magnetic field strength and rate of feed are adjusted, with this
Guarantee best separating effect.
In one embodiment, the sorting mineral equipment based on resultant field further include: gob interceptor 61, gob interceptor 61 with go out
Material mouth 15 is connected, and expects pipe 611 is provided on gob interceptor 61, and expects pipe 611 is multiple, multiple expects pipes 611 and discharge port 15
On-off it is arranged；Light compensating lamp 62, the top for being at least partially disposed at discharge port 15 of light compensating lamp 62, for being provided to discharge port 15
Light source.Gob interceptor 61 is mainly used for being sent to the different material strips after sorting at specific reception position, and light compensating lamp 62 is main
Guarantee that there is enough light sources when image acquisition part 60 acquires image.
In one embodiment, expects pipe 611 is 3, and the outside of lateral spiral chute 10 is successively along spiral chute 10
It for concentrate pipe, middle pipe and debris tube, is completed after dividing band distribution along groove face, to sorting material going out by 10 end of spiral chute
Material mouth 15 is discharged, and divides mine valve by adjusting in gob interceptor 61, so that different mine belts are respectively from concentrate pipe, middle pipe and tailing
Pipe 4 is discharged.
In one embodiment, image acquisition part 60 can be video camera, and control terminal 71 is control PC, 1 in figure in solid line
For material line, dotted line is signal monitoring cable, and feed pump 81 is feeding screw rod pump.
For a specific embodiment of the sorting mineral equipment of the invention based on resultant field, such as Fig. 1 to Fig. 3 institute
Show:
Sorting mineral equipment based on resultant field of the invention is a kind of finely-divided metal mine sorting based on compound force field
Equipment, this device achieves that under gravitational field, centrifugal force field and magnetic field fine mineral sorting, improve high density particulate recycling
Rate is designed by introducing glazing bar (stopper section 40) in groove face, greatly reduces being mingled with for gangue particle in magnetic group, improve essence
Mine taste is added multistage water supply pipe (jet water spout 50) by chute medial surface, reduces pollution of the thin mud to concentrate, improve de-
Mud effect.In addition, the screening installation is further provided with a set of control system, image analysis technology of the system based on machine vision,
Intelligent control can be carried out to operating parameters such as pan feeding rates and solenoid current according to groove face mine belt distribution situation.
In the present embodiment, control system includes: electromagnet, and light compensating lamp 62, enters stream at video camera (image acquisition part 60)
Meter (flowmeter 86), feeding screw rod pump frequency conversion device (frequency converter 82) control PC (control terminal 71) and exciting current controller
72。
In the present embodiment, exciting current controller 72 can realize the control to exciting current in different electromagnet respectively,
Its exciting current control range is 0A-20A；Glazing bar cross section is to have three sides, and wherein a line is bonded with groove face, fluoran stream surface pair
The groove face angular range section Ying Bianyu is (0,90), and in addition a line is vertical with groove face；Jet water spout has multistage, every segment length and section
Number can be designed to different value as needed, be bonded on the inside of jet water spout and spiral chute, and angle of water is obliquely.
In the present embodiment, there is a point mine valve in ore cut-off device (gob interceptor 61), mine valve is divided to can control groove face concentrate, chats and tail
Mine interception position.
In the present embodiment, the screening installation assorting room is as follows: enter dispenser 84 through feeding pipe 85 to sorting material,
Dispenser 84 will feed spiral chute groove face to sorting material.Pan feeding is moved along groove face, and complete first it is longitudinal layered, herein
Coarse particles tend to be distributed in lower layer in the process, and light fine grained is mainly distributed on upper layer；It spins downwards along groove face continuation
In motion process, the frictional force between light fine grained and groove face is small, and the fluid inwardly flowed takes in spiral chute cross section
Side；Frictional force between coarse particles and groove face is larger, is mainly distributed on outside.In the field region formed by electromagnet,
Magnetic or sub-magnetic debris is by overall inside magnetic force, so that magnetic or sub-magnetic debris distributed areas are closer to spiral
On the inside of chute, to enhance point band distribution trend of magnetic or sub-magnetic debris and gangue particle along chute groove face, improve
The rate of recovery of the magnetic or weak magnetic fine particle in concentrate；When material encounters glazing bar along spiral chute groove face motion process, material
The middle magnetic group formed by magnetic fields is formed by turbulent vortices in glazing bar and falls effect from glazing bar surface to groove face
It is lower to occur loosely, wherein the gangue particle being mingled with is released, and to move along groove face again, a point band distribution is realized, to drop
Gangue is mingled with the pollution to concentrate in Di Liaoci group.
Spiral chute disposed inboard has jet water spout, can be flushed to the thin mud moved on the inside of spiral chute in assorting room
Outside reduces thin mud content in concentrate；It is completed after dividing band distribution along groove face, material is discharged by spiral chute end, passes through adjusting
Ore cut-off device inner part mine valve, so that different mine belts are discharged from concentrate pipe, middle pipe and debris tube respectively.
When normal sorting, concentrate, chats and tailing distributing position be should be in zone of reasonableness on groove face, and by the reasonable model
It encloses and copes with relevant operational parameter if deviateing the range as the setting value of groove face mine belt control and be adjusted；Assorting room
In, chute groove face mine belt distribution picture is real-time transmitted to control PC by video camera, controls PC to the mine belt distribution map transmitted
As carrying out quantitative analysis, obtain groove face exact position locating for concentrate, chats and tailing, and with the setting range of mine belt distribution into
Row comparison, if controlling PC in mine belt position processing setting range and not issuing control signal；Conversely, control PC sending movement letter
Number give pan feeding screw pump frequency converter and exciting current controller 72, pan feeding rate and magnetic field strength are adjusted, to change
Groove face mine belt distribution situation.
In the present embodiment, exciting current controller 72 is adjusted, so that entering the excitation electricity of four electromagnetic coils in Fig. 1
Stream is respectively 5A, 3A, 3A and 5A, and for pan feeding in the field region formed by electromagnet, magnetic or sub-magnetic debris is by total
The inside magnetic force of body, so that magnetic or sub-magnetic debris distributed areas are closer on the inside of spiral chute, to enhance magnetic
Property or sub-magnetic debris and gangue particle along point band distribution trend of chute groove face, improve magnetic or weak magnetic fine particle in concentrate
In the rate of recovery.Intermediate glazing bar height is 10mm, when material encounters glazing bar along spiral chute groove face motion process, glazing bar material
The middle magnetic group formed by magnetic fields is formed by turbulent vortices in glazing bar and falls effect from glazing bar surface to groove face
It is lower to occur loosely, wherein the gangue particle being mingled with is released, and to move along groove face again, realize a point band distribution.
In the present embodiment, spiral chute disposed inboard has jet water spout, can will move in spiral chute in assorting room
The thin mud of side is flushed to outside, reduces thin mud content in concentrate, and jet water spout water is 0.5m3/h；A point band distribution is completed along groove face
Afterwards, material is discharged by spiral chute end.
In the present embodiment, plurality of electromagnetic coil (magnetic system 20) is arranged along the hand of spiral of spiral chute 10, electromagnetic coil
Iron core 21 it is C-shaped, iron core 21 across spiral chute bottom and side, 21 both ends of iron core respectively correspond spiral chute inside and
Outside, top view see that iron core is fan-shaped, and one end on the inside of spiral chute is significantly narrower than one end on the outside of spiral chute, so
So that being formed about magnetic field in spiral chute groove face has the characteristics that magnetic field gradient is big on the inside of the spiral chute, be conducive to it is magnetic or
Sub-magnetic debris is to spiral chute medial movement.
In the present embodiment, the magnetic field line that the arrangement of electromagnetic coil can form it into is not parallel with spiral chute groove face,
But at an angle.
In the present embodiment, the inclined-plane of glazing bar is fluoran stream surface, and glazing bar is arranged in the groove face of certain distance behind electromagnetic coil
On, quantity and spacing can be designed as needed.
Sorting mineral equipment based on resultant field of the invention, providing magnetic field is electromagnet, exciting current size with
And opening coil quantity can conveniently be adjusted, and be easy to implement automatic or intelligent control；Groove face is disposed with glazing bar, glazing bar cloth
Set behind the electromagnetic coil on the groove face of certain distance, quantity and spacing can be designed as needed, the design of glazing bar make because
Magnetic field and the magnetic group that generates occur loose, and eliminating magnetic group is mingled with gangue particle, improves concentrate taste；With one
The intelligence control system based on machine vision is covered, is realized to pan feeding speed and magnetic field strength and position (by the way which is determined
A or which electromagnetic coil is powered to realize) auto-control.There are multistage jet water spout, jet water spout along spiral chute disposed inboard
It is bonded with spiral chute inside, flush port obliquely, can reduce pollution of the thin mud to concentrate.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to of the invention its
Its embodiment.The present invention is directed to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
Person's adaptive change follows general principle of the invention and including the undocumented common knowledge in the art of the present invention
Or conventional techniques.Specification and example embodiment are considered only as illustratively, true scope and spirit of the invention by
Following claim is pointed out.
It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (18)
1. a kind of sorting mineral equipment based on resultant field characterized by comprising
Spiral chute (10)；
Magnetic system (20), the lower section of the part for being at least partially disposed at the spiral chute (10) of the magnetic system (20), the magnetic system
(20) magnetic field strength of the spiral chute (10) is acted on by the inside of the spiral chute (10) to the spiral chute
(10) gradually weaken in outside.
2. the sorting mineral equipment according to claim 1 based on resultant field, which is characterized in that the magnetic system (20)
The extending direction in the outside of the interior lateral spiral chute (10) of at least part of extending direction and the spiral chute (10)
It is consistent.
3. the sorting mineral equipment according to claim 2 based on resultant field, which is characterized in that the spiral chute
(10) inner surface includes spiral chute bottom surface (11) and is connected in the spiral chute at spiral chute bottom surface (11) both ends
Side (12) and spiral chute lateral surface (13)；
Wherein, projection of the part of the spiral chute medial surface (12) in the magnetic system (20) being disposed below is located at institute
State the inside of magnetic system (20).
4. the sorting mineral equipment according to claim 3 based on resultant field, which is characterized in that outside the spiral chute
Projection of the part of side (13) in the magnetic system (20) being disposed below is located at the inside of the magnetic system (20).
5. the sorting mineral equipment according to claim 2 based on resultant field, which is characterized in that the magnetic system (20) is
Electromagnet, the electromagnet include:
Iron core (21)；
Coil (22), the coil (22) is wrapped on the iron core (21), for receiving electric current；
Wherein, width of the iron core (21) close to one end of the inside of the spiral chute (10) is less than the iron core (21) and leans on
The width of the other end in the outside of the nearly spiral chute (10), so that the electromagnet acts on the spiral chute (10)
Magnetic field strength is gradually weakened by the outside of inside to the spiral chute (10) of the spiral chute (10).
6. the sorting mineral equipment according to claim 5 based on resultant field, which is characterized in that the iron core (21)
Width from close to the spiral chute (10) inside one end to close to the spiral chute (10) outside the other end by
Flaring.
7. the sorting mineral equipment according to claim 5 based on resultant field, which is characterized in that iron core (21) packet
It includes:
Main paragraph (211), the main paragraph (211) are located at the lower section of the part of the spiral chute (10), the coil (22)
It is wrapped on the main paragraph (211)；
First bending segment (212), first bending segment (212) are connected with one end of the main paragraph (211), and described first
Bending segment (212) is located at the inside of the spiral chute (10).
8. the sorting mineral equipment according to claim 7 based on resultant field, which is characterized in that first bending segment
(212) it is the first L-type segment body, there is the first U-shaped cavity between first bending segment (212) and the main paragraph (211)；
Wherein, the end of first bending segment (212) is oppositely arranged with the spiral chute (10).
9. the sorting mineral equipment according to claim 7 based on resultant field, which is characterized in that the iron core (21) is also
Include:
Second bending segment (213), second bending segment (213) and the main paragraph (211) are far from first bending segment
(212) the other end is connected, and second bending segment (213) is located at the outside of the spiral chute (10)；
Wherein, the width of one end that the main paragraph (211) is connected with first bending segment (212) is less than the main paragraph
(211) width for the other end being connected with second bending segment (213).
10. the sorting mineral equipment according to claim 9 based on resultant field, which is characterized in that first bending
Section (212) is oppositely arranged with second bending segment (213), and second bending segment (213) is the second L-type segment body, and described the
There is the second U-shaped cavity between two bending segments (213) and the main paragraph (211)；
Wherein, the end of second bending segment (213) is oppositely arranged with the spiral chute (10).
11. the sorting mineral equipment according to any one of claim 1 to 10 based on resultant field, which is characterized in that
There is default angle, the default angle is sharp between the magnetic line of force of the magnetic system (20) and the groove face of the spiral chute (10)
Angle, and the magnetic line of force tilts upwards relative to the groove face of the spiral chute (10).
12. the sorting mineral equipment according to any one of claim 1 to 10 based on resultant field, which is characterized in that
The magnetic system (20) is multiple, the sorting mineral equipment based on resultant field further include:
Bracket (30), the bracket (30) include the support rod of braced frame (31) and setting in the middle part of the braced frame (31)
(32), the spiral chute (10) is arranged around the support rod (32)；
Wherein, multiple magnetic systems (20) are spaced apart and arranged on the support rod (32).
13. the sorting mineral equipment according to any one of claim 1 to 10 based on resultant field, which is characterized in that
The sorting mineral equipment based on resultant field further include:
Stopper section (40), the stopper section (40) are arranged in the inside of the spiral chute (10), for slipping with along the spiral
Slot (10) is mobile to be in contact to sorting material.
14. the sorting mineral equipment according to claim 13 based on resultant field, which is characterized in that the spiral chute
(10) inner surface includes spiral chute bottom surface (11) and is connected in the spiral chute at spiral chute bottom surface (11) both ends
Side (12) and spiral chute lateral surface (13), the stopper section (40) are bar shaped bar, the bar shaped bar and the spiral chute
Medial surface (12) is connected with the spiral chute lateral surface (13).
15. the sorting mineral equipment according to claim 13 based on resultant field, which is characterized in that the stopper section
It (40) is multiple, extending direction setting of multiple stopper sections (40) along the spiral chute (10).
16. the sorting mineral equipment according to any one of claim 1 to 10 based on resultant field, which is characterized in that
The sorting mineral equipment based on resultant field further include:
Jet water spout (50), the jet water spout (50) are arranged on the spiral chute (10), for positioned at the spiral chute
(10) water flow is sent into sorting material on.
17. the sorting mineral equipment according to claim 16 based on resultant field, which is characterized in that the spiral chute
(10) inner surface includes spiral chute bottom surface (11) and is connected in the spiral chute at spiral chute bottom surface (11) both ends
The water outlet of side (12) and spiral chute lateral surface (13), the jet water spout (50) is located at the spiral chute medial surface (12)
On, the center line of the water outlet is tilted down to be arranged in the spiral chute bottom surface (11).
18. the sorting mineral equipment according to claim 16 based on resultant field, which is characterized in that the jet water spout
It (50) is multiple, extending direction setting of multiple jet water spouts (50) along the spiral chute (10).
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Cited By (1)
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|---|---|---|---|---|
| CN111151372A (en) * | 2020-02-08 | 2020-05-15 | 承德石油高等专科学校 | Novel wear-resisting spiral chute ore dressing device |
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