CN108787163A - A kind of magnetic separation main conveyor of dry-type magnetic extractor - Google Patents
A kind of magnetic separation main conveyor of dry-type magnetic extractor Download PDFInfo
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- CN108787163A CN108787163A CN201810633623.0A CN201810633623A CN108787163A CN 108787163 A CN108787163 A CN 108787163A CN 201810633623 A CN201810633623 A CN 201810633623A CN 108787163 A CN108787163 A CN 108787163A
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- magnetic separation
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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
- 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
- B03C1/16—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts
- B03C1/18—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with magnets moving during operation
-
- 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
- B03C1/025—High gradient magnetic separators
- B03C1/031—Component parts; Auxiliary operations
- B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
- B03C1/0332—Component parts; Auxiliary operations characterised by the magnetic circuit using permanent magnets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
- B65G15/32—Belts or like endless load-carriers made of rubber or plastics
-
- 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
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/20—Magnetic separation whereby the particles to be separated are in solid form
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Abstract
A kind of magnetic separation main conveyor of dry-type magnetic extractor of the present invention, it is characterized by comprising lateral magnetic separation mainframes, the left and right ends of magnetic separation mainframe are respectively arranged with magnetic separation and roll left cylinder and the right roller of magnetic separation, wherein magnetic separation rolls left cylinder as magnetic pulley, the right roller of magnetic separation is non magnetic roller, magnetic separation rolls left and is set with conveyer belt between cylinder and the right roller of magnetic separation, the middle part of magnetic separation mainframe is provided with multigroup magnet up and down respectively from left to right, multigroup magnet or so arranged for interval, upward magnet is U-shaped structure, downward magnet is inverted U-shaped structure, the magnetism of upward magnet is uniformly, the magnetic interlaced arrangement of upward magnet, the magnetism of downward magnet is gradually reduced from left to right.A kind of dry-type magnetic extractor of the magnetic separation main conveyor assembling of dry-type magnetic extractor of the present invention has the advantages that efficiency of magnetic separation is high, adaptability is good, stability in use is good, easy to maintenance.
Description
Technical field
The present invention relates to the magnetic separation main conveyors of a kind of multi-stage dry magnetic separator more particularly to a kind of dry-type magnetic extractor to belong to
Magnetic separation machinery field.
Background technology
The iron ore deposit in China compares with global iron ore, possesses a large amount of low-grade iron ore mineral resources, closely
In order to make full use of domestic existing low-grade magnetite mineral resources to make up the deficiency of domestic iron ore deposit over year, the country is
There is enterprise to get involved in the development process of low-grade magnetite mineral resources.
Current magnetic separation process can not fully exploit magnetic iron ore, cause the waste of mineral products to a certain extent.City
A few place's defects of dry-type magnetic extractor generally existing having on field：
1, magnetic separation classification sensitivity is poor, needs to carry out compared with multi-pass magnetic concentration working, efficiency of magnetic separation is low；
2, limited due to adjusting magnetic ability with a magnetic separator, it can not accomplish the concrete condition for different mines
It can specifically be adjusted, adaptability is poor；
3, the conveyer belt for ores lifting of traditional magnetic separator is generally belt, and carrying roller is provided on the inside of belt,
Its working environment is severe, and dust is big, and rotating speed is high, and Idler bearing is fragile stuck to cause carrying roller surface wear cracking incised wound skin
Band, maintenance cost is high, serious to restrict production；
4, traditional magnetic separator is to form an entirety by carrying out installing various parts on a mainframe, when occurring therefore
When barrier, need to shut down to whole magnetic separator progress detachable maintaining, maintenance cycle is long, wastes time, and reduces production efficiency.
Therefore seek a kind of multi-stage dry magnetic separator that efficiency of magnetic separation is high, adaptability is good, stability in use is good, easy to maintenance
It is particularly important.
Invention content
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of magnetic separation main conveyors of dry-type magnetic extractor for assembling
A kind of multi-stage dry magnetic separator that efficiency of magnetic separation is high, adaptability is good, stability in use is good, easy to maintenance.
The object of the present invention is achieved like this：
A kind of magnetic separation main conveyor of dry-type magnetic extractor, it is characterised in that including lateral magnetic separation mainframe, magnetic separation host
The left and right ends of frame are respectively arranged with magnetic separation and roll left cylinder and the right roller of magnetic separation, and the wherein magnetic separation cylinder that rolls left is magnetic pulley, and magnetic separation is right
Roller is non magnetic roller, and magnetic separation rolls left and be set with conveyer belt between cylinder and the right roller of magnetic separation, and the middle part of magnetic separation mainframe is from a left side
It being provided with multigroup magnet up and down respectively to right, multigroup magnet or so arranged for interval, upward magnet is U-shaped structure,
Downward magnet is inverted U-shaped structure, and the magnetism of upward magnet is uniform, the magnetic interlaced arrangement of upward magnet, to
Under magnet magnetism be gradually reduced from left to right.
The middle part of magnetic separation mainframe is provided with multigroup conveyer belt supporting block, multigroup conveying up and down respectively from left to right
Band supporting block or so arranged for interval, and multigroup conveyer belt supporting block is located in the gap of adjacent magnet, upward conveying
Top with supporting block is higher than the height of upward magnet, and the conveyer belt on the top and top of upward conveyer belt supporting block
Medial surface contact, the bottom end of downward conveyer belt supporting block is less than the height of downward level-one magnet, and downward conveying
Bottom end with supporting block is contacted with the medial surface of the conveyer belt of lower section.
The magnet is electric permanent magnetic iron.
The conveyer belt supporting block is wear-resistant ceramic.
The arrival end of wear-resistant ceramic and belt contacts uses graphite-based conducting bar transition.
A kind of dry-type magnetic extractor includes a kind of magnetic separation main conveyor of dry-type magnetic extractor described in claim.
A kind of dry-type magnetic extractor, including upper layer and lower layer magnetic separation main conveyor are provided with below every layer of magnetic separation main conveyor
One layer of subsidiary conveyer.
The braced frame with respective heights is respectively set in a kind of dry-type magnetic extractor, magnetic separation main conveyor and subsidiary conveyer
It is interior.
Compared with prior art, the beneficial effects of the invention are as follows：
1, multi-pass magnetic separation is integrated on one whole dry-type magnetic extractor, and efficiency of magnetic separation is high；
2, according to different mine concrete conditions, it is only necessary to the i.e. adjustable magnetic force of turn on angle for adjusting electric permanent magnetic iron, to
Meet the magnetic separation requirement of different operating modes, adaptability is good；
3, since belt conveyor uses special belt, tensile strength is high, and flexible deformation is small, and wear-resisting property is superpower, wear-resistant,
Damage resistant, conveyer belt supporting block use wear-resistant ceramic, the arrival end of wear-resistant ceramic and belt to use graphite-based conducting bar transition, play
The service life of conveyer belt is greatly improved in lubricant, need not often replace, and ensures normal production；
4, since complete machine includes multiple frames that modularization is built, the magnetic separation for being classified magnetic separation is provided in each frame
Mechanism so that any one mechanism need not integrally tear machine open when breaking down, and only need to remove corresponding module i.e. adjustable
It changes or repairs, maintenance cycle is short, saves the time, improves production efficiency.
In conclusion a kind of dry-type magnetic extractor of the magnetic separation main conveyor of dry-type magnetic extractor of the present invention for assembling has magnetic
Select advantage efficient, that adaptability is good, stability in use is good, easy to maintenance.
Description of the drawings
Fig. 1 is a kind of external frame schematic diagram of multi-stage dry magnetic separator.
Fig. 2 is a kind of internal structure schematic diagram of multi-stage dry magnetic separator.
Fig. 3 is the structural schematic diagram of the level-one magnetic separation main conveyor in Fig. 2.
Fig. 4 is the structural schematic diagram of the level-one subsidiary conveyer in Fig. 2.
Fig. 5 is the structural schematic diagram of the secondary magnetic separation main conveyor in Fig. 2.
Fig. 6 is the structural schematic diagram of the two level subsidiary conveyer in Fig. 2.
Fig. 7 is the B-B sectional views in Fig. 2.
Fig. 8 is the C-C sectional views in Fig. 2.
Fig. 9 is the D-D sectional views in Fig. 2.
Wherein：
Upper frame 1
Middle frame 2
Lower frame 3
Level-one magnetic separation main conveyor 4, level-one magnetic separation mainframe 4.1, level-one magnetic separation roll left cylinder 4.2, the right roller of level-one magnetic separation
4.3, first-level transport band 4.4, level-one magnet 4.5, first-level transport band supporting block 4.6
Level-one subsidiary conveyer 5, level-one subsidiary conveyer frame 5.1, level-one auxiliary conveying roll left cylinder 5.2, level-one auxiliary it is defeated
Send right roller 5.3, level-one auxiliary conveyor belt 5.4
Secondary magnetic separation main conveyor 6, secondary magnetic separation mainframe 6.1, secondary magnetic separation roll left the right roller of cylinder 6.2, secondary magnetic separation
6.3, two-stage conveying band 6.4, two level magnet 6.5, two-stage conveying band supporting block 6.6
Two level subsidiary conveyer 7, two level subsidiary conveyer frame 7.1, two level auxiliary conveying roll left cylinder 7.2, two level auxiliary it is defeated
Send right roller 7.3, two level auxiliary conveyor belt 7.4
Scan roller 8
Concentrate discharge port 9
Chats discharge port 10
First tailing discharge port 11
Second tailing discharge port 12
First barrier plate 13
Second barrier plate 14
Third barrier plate 15
4th barrier plate 16
5th barrier plate 17
6th barrier plate 18
Starting stave 19
7th barrier plate 20
8th barrier plate 21
9th barrier plate 22
Tenth barrier plate 23
11st barrier plate 24
Second riser 25.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiment is only invention a part of the embodiment, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Referring to Fig. 1-Fig. 9, a kind of multi-stage dry magnetic separator of the present invention, it includes multiple frames that modularization is built
Frame is provided with the magnetic separation mechanism for being classified magnetic separation in each frame, and the magnetic separation mechanism in each frame is formed for being classified magnetic
A kind of multi-stage dry magnetic separator of choosing；
As a preferred embodiment, multiple frames that modularization is built in the present embodiment have upper, middle and lower arrangement upper frame 1, in
Frame 2 and lower frame 3；It is both provided with protection face board on upper frame 1, middle frame 2 and lower frame 3, is opened up on protection face board
There are multiple access holes；
As a preferred embodiment, the magnetic separation mechanism for being classified magnetic separation in multiple frames that modularization is built include from up to
Under four layers of conveying mechanism being sequentially arranged, four layers of conveying mechanism include successively from top to bottom include first layer level-one magnetic separation master it is defeated
Send machine 4, the level-one subsidiary conveyer 5 of the second layer, the secondary magnetic separation main conveyor 6 of third layer and the 4th layer of two level auxiliary defeated
Send machine 7；
The level-one magnetic separation main conveyor 4 includes the level-one magnetic separation mainframe 4.1 of transverse direction, level-one magnetic separation mainframe 4.1
Left and right ends are respectively arranged with level-one magnetic separation and roll left cylinder 4.2 and the right roller 4.3 of level-one magnetic separation, and wherein level-one magnetic separation is rolled left cylinder 4.2
For magnetic pulley, the right roller 4.3 of level-one magnetic separation is non magnetic roller, and level-one magnetic separation is rolled left cylinder 4.2 and the right roller of level-one magnetic separation 4.3
Between be set with first-level transport band 4.4, first-level transport band 4.4 is special substance belt, and special substance belt is Germany Fu Erbo
Western Green conveys the belt of the model AE140/3UO/U4HMTBLACK of scientific and technological (China) Co., Ltd production, and belt material is
Kafra fiber adds PU plastic, rubbers.The middle part of level-one magnetic separation mainframe 4.1 is provided with more up and down respectively from left to right
Group level-one magnet 4.5, the certain suction of ore of multigroup level-one magnet 4.5 for being supplied on first-level transport band 4.4 is to make
It obtains ore to be adsorbed on first-level transport band 4.4,4.5 or so arranged for interval of multigroup level-one magnet, upward level-one magnet 4.5 is U
Character form structure, downward level-one magnet 4.5 are inverted U-shaped structure, and the magnetism of upward level-one magnet 4.5 is uniform, upwards
Level-one magnet 4.5 magnetic interlaced arrangement, downward level-one magnet 4.5 magnetism be gradually reduced from left to right, as one kind
It is preferred that downward level-one magnet 4.5 has eight groups, the level-one magnet 4.5 is electric permanent magnetic iron, level-one magnetic separation mainframe 4.1
Middle part is provided with multigroup first-level transport band supporting block 4.6, multigroup first-level transport band supporting block up and down respectively from left to right
4.6 or so arranged for interval, and multigroup first-level transport is located at supporting block 4.6 in the gap of adjacent level-one magnet 4.5, to
On top of the first-level transport with supporting block 4.6 be higher than the height of upward level-one magnet 4.5, and upward first-level transport band
The top of supporting block 4.6 is contacted with the medial surface of the first-level transport band 4.4 of top, and downward first-level transport is with supporting block 4.6
Bottom end is less than the height of downward level-one magnet 4.5, and the one of bottom end of the downward first-level transport with supporting block 4.6 and lower section
The medial surface contact of grade conveyer belt 4.4, the first-level transport band supporting block 4.6 is wear-resistant ceramic, wear-resistant ceramic and belt contacts
Arrival end use graphite-based conducting bar transition；
The level-one subsidiary conveyer 5 includes the level-one subsidiary conveyer frame 5.1 of transverse direction, level-one subsidiary conveyer frame 5.1
Left and right ends be respectively arranged with that cylinder 5.2 is rolled left in level-one auxiliary conveying and level-one auxiliary conveys right roller 5.3, level-one auxiliary conveying
Roll left cylinder 5.2 and level-one auxiliary to convey right roller 5.3 be non magnetic roller, level-one auxiliary conveying roll left cylinder 5.2 and level-one it is auxiliary
It helps between conveying right roller 5.3 and is set with level-one auxiliary conveyor belt 5.4, level-one auxiliary conveyor belt 5.4 is special substance belt, institute
It states level-one subsidiary conveyer 5 to be located at immediately below left section of level-one magnetic separation main conveyor 4, level-one auxiliary conveys the cylinder 5.2 that rolls left and is located at
Level-one magnetic separation is rolled left the underface of cylinder 4.2；
The secondary magnetic separation main conveyor 6 has the structure similar with level-one magnetic separation main conveyor 4, the secondary magnetic separation master
Conveyer 6 includes the secondary magnetic separation mainframe 6.1 of transverse direction, and the left and right ends of secondary magnetic separation mainframe 6.1 are respectively arranged with two level
Magnetic separation is rolled left cylinder 6.2 and the right roller 6.3 of secondary magnetic separation, and the wherein secondary magnetic separation cylinder 6.2 that rolls left is magnetic pulley, the right rolling of secondary magnetic separation
Cylinder 6.3 is non magnetic roller, and secondary magnetic separation rolls left and is set with two-stage conveying band between cylinder 6.2 and the right roller of secondary magnetic separation 6.3
6.4, two-stage conveying band 6.4 is special substance belt, and the middle part of secondary magnetic separation mainframe 6.1 is distinguished up and down from left to right
It is provided with multigroup two level magnet 6.5, the suction that multigroup two level magnet 6.5 is used to be supplied to the ore on two-stage conveying band 6.4 certain
Power is so that ore is adsorbed on two-stage conveying band 6.4,6.5 or so arranged for interval of multigroup two level magnet, upward two level magnetic
Iron 6.5 is U-shaped structure, and downward two level magnet 6.5 is inverted U-shaped structure, and the magnetism of upward two level magnet 6.5 is
Even, the magnetism of the magnetic interlaced arrangement of upward two level magnet 6.5, downward two level magnet 6.5 is gradually reduced from left to right, institute
It is electric permanent magnetic iron to state two level magnet 6.5, and the middle part of secondary magnetic separation mainframe 6.1 is provided with up and down respectively from left to right
Multigroup two-stage conveying band supporting block 6.6, multigroup two-stage conveying band 6.6 or so arranged for interval of supporting block, and multigroup two-stage conveying band
Supporting block 6.6 is located in the gap of adjacent two level magnet 6.5, and top of the upward two-stage conveying with supporting block 6.6 is high
In the height of upward two level magnet 6.5, and the two-stage conveying on upward the two-stage conveying top with supporting block 6.6 and top
It being contacted with 6.4 medial surface, bottom end of the downward two-stage conveying with supporting block 6.6 is less than the height of downward two level magnet 6.5,
And bottom end of the downward two-stage conveying with supporting block 6.6 is contacted with the medial surface of the two-stage conveying band 6.4 of lower section, the two level
Conveyer belt supporting block 6.6 is wear-resistant ceramic, and the arrival end of wear-resistant ceramic and belt contacts uses graphite-based conducting bar transition；Two level magnetic
Main conveyor 6 is selected to be located at the underface of level-one subsidiary conveyer 5, the length of secondary magnetic separation main conveyor 6 assists conveying than level-one
Machine 5 is grown, and the left end of secondary magnetic separation main conveyor 6 is slightly beyond the left end of level-one magnetic separation main conveyor 4, secondary magnetic separation main conveyor
The magnetism of 6 two level magnet 6.5 is better than the magnetism of the level-one magnet 4.5 of level-one magnetic separation main conveyor 4, secondary magnetic separation main conveyor
Number of the number of 6 two level magnet 6.5 less than the level-one magnet 4.5 of level-one magnetic separation main conveyor 4；
The two level subsidiary conveyer 7 includes the two level subsidiary conveyer frame 7.1 of transverse direction, two level subsidiary conveyer frame 7.1
Left and right ends be respectively arranged with that cylinder 7.2 is rolled left in two level auxiliary conveying and two level auxiliary conveys right roller 7.3, two level auxiliary conveying
Roll left cylinder 7.2 and two level auxiliary to convey right roller 7.3 be non magnetic roller, two level auxiliary conveying roll left cylinder 7.2 and two level it is auxiliary
It helps between conveying right roller 7.3 and is set with two level auxiliary conveyor belt 7.4, two level auxiliary conveyor belt 7.4 is special substance belt, institute
It states two level subsidiary conveyer 7 to be located at immediately below left section of secondary magnetic separation main conveyor 6, two level auxiliary conveys 7.2, the cylinder that rolls left
It rolls left in secondary magnetic separation the underface of cylinder 7.2；
There are one roller 8 is scanned, the roller 8 of scanning is magnet drum, is swept for the right setting of the two level subsidiary conveyer 7
The overhead height of roller 8 is selected to be less than the overhead height of two level subsidiary conveyer 7, the overhead height for preferably scanning roller 8 is located at
The centerline height of the two level subsidiary conveyer frame 7.1 of two level subsidiary conveyer 7；
Wherein level-one magnetic separation main conveyor 4 is located in upper frame 1, level-one subsidiary conveyer 5 and secondary magnetic separation main conveyor 6
In middle frame 2, two level subsidiary conveyer 7 and scans roller 8 and be located in lower frame 3；
It is defeated that a kind of ore feed inlet of the ore charging for waiting for ore dressing of multi-stage dry magnetic separator is located at level-one magnetic separation master
The surface of 4 right sections of machine, 1 right section of corresponding upper frame is sent to offer ore feed inlet；
A kind of multi-stage dry magnetic separator can select the medium chats and iron-holder of the higher concentrate of iron-holder, iron-holder
Relatively low tailing,
Wherein concentrate is selected from the bottom, right section of multi-stage dry magnetic separator, and 3 right sections of corresponding lower frame offers concentrate and goes out
Material mouth 9,
Wherein chats is selected from the bottom stage casing of multi-stage dry magnetic separator, and 3 stage casing of corresponding lower frame offers chats and goes out
Material mouth 10,
Wherein tailing is selected from the bottom of multi-stage dry magnetic separator two, wherein the tailing place of selecting is multi-stage dry at first
Left section of the bottom of magnetic separator, 3 left sections of corresponding lower frame offer the first tailing discharge port 11, and the tailing place of selecting is more at second
The bottom stage casing of grade dry-type magnetic extractor, 3 stage casing of corresponding lower frame offers the second tailing discharge port 12, the second tailing discharge port
12 are located at 10 left side of chats discharge port, and the second tailing discharge port 12 and chats discharge port 10 are located at the left side for scanning roller 8
Right both sides；
The left of the level-one magnetic separation main conveyor 4 is provided with first barrier plate 13 highly consistent with it, the first blocking
Plate 13 is the oblique plate extended from upper left lower right, and the upper end of the first barrier plate 13 connects frame 1 with rear and front end, the
One barrier plate 13 is used to the tailing that 4 upper layer of level-one magnetic separation main conveyor is transported carrying out blocking guiding so that under the tailing at this
It falls；
The right of the level-one subsidiary conveyer 5 is provided with second barrier plate 14 highly consistent with it, the second barrier plate
14 are located at 4 right sections of lower sections of level-one magnetic separation main conveyor, and the second barrier plate 14 is the oblique plate extended from upper right lower left, the
The rear and front end of two barrier plates 14 connects middle frame 2, what the second barrier plate 14 was used to transport 4 lower layer of level-one magnetic separation main conveyor
Non- concentrate (chats and tailing are referred to as non-concentrate) carries out blocking guiding so that it is defeated that the non-concentrate at its this falls to secondary magnetic separation master
Send the upper layer of machine 6；
The left of the secondary magnetic separation main conveyor 6 is provided with the third barrier plate 15 highly consistent with it, third blocking
Plate 15 is the oblique plate extended from upper left lower right, and the upper end of third barrier plate 15 connects middle frame 2 with rear and front end, the
The tailing that three barrier plates 15 stop the tailing to fall for the first barrier plate 13 and transport 6 upper layer of secondary magnetic separation main conveyor
Carry out blocking guiding so that the tailing at this falls；
The right of second barrier plate 14 is provided with the 4th barrier plate 16, and height and the level-one auxiliary of the 4th barrier plate 16 convey
Machine 5 and 6 whole height of secondary magnetic separation main conveyor are consistent, and the 4th barrier plate 16 is oblique to extend from upper left lower right
Plate, the upper end of the 4th barrier plate 16 are connected with the upper end of the second barrier plate 14, and the 4th barrier plate 16 is used for the main conveying of level-one magnetic separation
The guiding that the concentrate of 4 lower layer of machine transport falls；
The lower section of third barrier plate 15 is provided with the 5th barrier plate 17, and the 5th barrier plate 17 is to prolong from upper right lower left
The oblique plate stretched, the 5th barrier plate 17 are located at the left of two level subsidiary conveyer 7, and the lower section of the 5th barrier plate 17 is provided with the 6th
Barrier plate 18, the 6th barrier plate 18 are the oblique plate extended from upper left lower right, the 5th barrier plate 17 and the 6th barrier plate
18 rear and front end is connected on lower frame 3, and 18 lower end of the 6th barrier plate connects the first tailing discharge port 11, the 5th blocking
Plate 17 is used to provide the guiding of the tailing fallen on third barrier plate 15, and the 6th barrier plate 18 is for providing the 5th barrier plate 17
The guiding of the tailing fallen, the 6th barrier plate 18 and one piece of vertical starting stave 19 of its right lead tailing between the two
To the first tailing discharge port 11；
4th barrier plate, 16 lower section is provided with the 7th barrier plate 20 of oblique lower left, and 20 right of the 7th barrier plate is provided with
8th barrier plate 21 of oblique lower right, the 4th barrier plate 16, the 7th barrier plate 20 and the 8th barrier plate 21 form one
The rear and front end of " entering " character form structure, the 7th barrier plate 20 and the 8th barrier plate 21 connects lower frame 3, the 7th barrier plate 20 with
And the 8th barrier plate 21 height and lower frame 3 it is highly consistent, the gradient of the 8th barrier plate 21 is oblique with the 4th barrier plate 16
Degree is consistent, and the 8th barrier plate 21 is used to provide the guiding of the concentrate to fall on the 4th barrier plate 16, and the 8th barrier plate 21 is right with it
Concentrate between the two is directed to concentrate discharge port 9 by the 9th barrier plate 22 of one piece of oblique lower left of side；
The left for scanning roller 8 is provided with the second riser 25, and the lower section for scanning roller 8 is provided with the tenth of oblique lower left
11st barrier plate 24 of barrier plate 23 and oblique lower right, 24 symmetrical cloth of the tenth barrier plate 23 and the 11st barrier plate
It sets, the second riser 25 and the tenth barrier plate 23 are used to the tailing at second being directed to the second tailing discharge port 12, the 11st resistance
Baffle 24 and the 7th barrier plate 20 are used to the chats scanned on roller 8 being directed to chats discharge port 10.
A kind of working method of multi-stage dry magnetic separator：
Step 1: granularity enters the upper of level-one magnetic separation main conveyor 4 in 0-8 millimeters of Armco magnetic iron ore through ore feed inlet
Layer 4.4 right sections of first-level transport band, ore first-level transport band 4.4 drive under be moved to the left, by when field region in magnetic force
(magnet is by the arrangement of the poles NS dislocation arrangement) " rolling type " advances under effect, and the high ore of iron-holder is close to 4.4 table of first-level transport band
The relatively low ore of face, iron-holder is in the intermediate bed of material, barren rock (tailing) is in upper surface；
Step 2: ore by level-one magnetic separation roll left cylinder 4.2 when, barren rock is detached from the bed of material and falls into the first tailing discharge port first
11, iron-stone is close to first-level transport band 4.4 under magneticaction and continues to move ahead, into level-one magnetic separation main conveyor 4 and level-one
Between subsidiary conveyer 5, under 4.4 inside magneticaction of gravity and the first-level transport band of lower layer, ore is along traffic direction at " jump
Jump formula " moves ahead, into right section of the 6th the 7th 8th group of magnetic regions when, because it is magnetic weaken, the ore that iron-holder is high enters essence
Mine discharge port 9；
Step 3: the relatively low ore of iron-holder under the conveying of the level-one auxiliary conveyor belt 5.4 of level-one subsidiary conveyer 5 into
Enter on the two-stage conveying band 6.4 on the upper layer of secondary magnetic separation main conveyor 6, because secondary magnetic separation main conveyor 6 and level-one magnetic separation master are defeated
Send the principle of machine 4 identical (secondary magnetic separation main conveyor 6 is different from level-one magnetic separation 4 magnetic field intensities of main conveyor), two level auxiliary is defeated
Send machine 7 identical as the principle of level-one subsidiary conveyer 5, ore is identically formed secondary follow such as step 1 and step 2 ore dressing process
Ring, iron-holder partially in ore enter chats discharge port 10；
Step 4: the extremely low ore of iron-holder enters under the conveying of two level subsidiary conveyer 7 scans 8 outer surface of roller,
Iron-stone enters chats discharge port 10 under magneticaction, and nonferrous barren rock enters the second tailing discharge port 12, in this way can be with
Ensure that the iron content at the second tailing discharge port 12 is minimum (being less than or equal to 1.00%).
Three groups of embodiments are supplemented herein：
Embodiment 1：
After the broken pre-selection in mobile dry separation station, granularity is less than the boundary ore that Ma'an Mountain's iron ore exploitation process generates
60 millimeters, of high cost, or even loss of capital is selected into subsequent fine, utility value is high.If using multi-stage dry magnetic separator and high pressure
Roller mill is crushed to preselects effect clearly less than after 8 mm particle sizes：
| Classification | Yield % | Full Iron grade TFe% | Magnet grade MFe% | Rate of recovery % |
| Raw ore | 100 | 18.54 | 14.58 | 100 |
| Concentrate | 56.00 | 29.45 | 22.94 | 88.11 |
| Chats | 23.50 | 10.67 | 6.89 | 11.10 |
| Tailing | 19.50 | 7.63 | 0.60 | 0.80 |
3000 Gauss of upper layer magnetic field intensity of level-one magnetic separation main conveyor 4,4500 Gauss of lower layer's magnetic field intensity, secondary magnetic separation
3000 Gauss of upper layer magnetic field intensity of main conveyor 6,4700 Gauss of lower layer's magnetic field intensity, 4.4 speed 100- of first-level transport band
167m/min, 6.4 speed 100-167m/min of two-stage conveying band, 5.4 speed 100-170m/min of level-one auxiliary conveyor belt, two level
7.4 speed 100-170m/min of auxiliary conveyor belt, level-one magnetic separation are rolled left 5000 Gauss of a magnetic field intensity, and secondary magnetic separation rolls left magnetic
5000 Gauss of field intensity scans 5000 Gauss of roller magnetic field intensity.
Embodiment 2：
Ma'an Mountain iron ore dry-dressing throws after tail barren rock is crushed to granularity less than 8 millimeters after the pre-selection of multi-stage dry magnetic separator it
Parameter is as follows：
| Classification | Yield % | Full Iron grade TFe% | Magnet grade MFe% | Rate of recovery % |
| Raw ore | 100 | 9.71 | 3.68 | 100 |
| Concentrate | 13.19 | 24.12 | 18.59 | 66.70 |
| Chats | 20.10 | 14.68 | 3.34 | 18.25 |
| Tailing | 66.70 | 5.36 | 0.83 | 15.00 |
3000 Gauss of upper layer magnetic field intensity of level-one magnetic separation main conveyor 4,4700 Gauss of lower layer's magnetic field intensity, secondary magnetic separation
3000 Gauss of upper layer magnetic field intensity of main conveyor 6,4800 Gauss of lower layer's magnetic field intensity, 4.4 speed 100- of first-level transport band
167m/min, 6.4 speed 100-167m/min of two-stage conveying band, 5.4 speed 100-170m/min of level-one auxiliary conveyor belt, two level
7.4 speed 100-170m/min of auxiliary conveyor belt, level-one magnetic separation are rolled left 5000 Gauss of a magnetic field intensity, and secondary magnetic separation rolls left magnetic
5000 Gauss of field intensity scans 5000 Gauss of roller magnetic field intensity.
Embodiment 3：
Shanxi Dai County Iron Ore grade is higher, in order to obtain higher economic and technical norms, to the ore using high
Pressure roller grinding machine is crushed to granularity and is less than 20 millimeters, the significant effect after the pre-selection of multi-stage dry magnetic separator, and parameter is as follows：
| Classification | Yield % | Full Iron grade TFe% | Magnet grade MFe% | Rate of recovery % |
| Raw ore | 100 | 24.20 | 21.66 | 100 |
| Concentrate | 56.30 | 83.43 | 83.43 | |
| Chats | 25 | 0.60 | 0.69 | |
| Tailing | 18.70 | 15.40 | 13.29 |
3000 Gauss of upper layer magnetic field intensity of level-one magnetic separation main conveyor 4,4000 Gauss of lower layer's magnetic field intensity, secondary magnetic separation
3000 Gauss of upper layer magnetic field intensity of main conveyor 6,4500 Gauss of lower layer's magnetic field intensity, 4.4 speed 100- of first-level transport band
167m/min, 6.4 speed 100-167m/min of two-stage conveying band, 5.4 speed 100-170m/min of level-one auxiliary conveyor belt, two level
7.4 speed 100-170m/min of auxiliary conveyor belt, level-one magnetic separation are rolled left 5000 Gauss of a magnetic field intensity, and secondary magnetic separation rolls left magnetic
5000 Gauss of field intensity scans 5000 Gauss of roller magnetic field intensity.
The specific application example that the above is only the present invention, is not limited in any way protection scope of the present invention.All uses
Equivalent transformation or equivalent replacement and the technical solution formed, all fall within rights protection scope of the present invention.
Claims (8)
1. a kind of magnetic separation main conveyor of dry-type magnetic extractor, it is characterised in that including lateral magnetic separation mainframe, magnetic separation mainframe
Left and right ends be respectively arranged with magnetic separation and roll left cylinder and the right roller of magnetic separation, the wherein magnetic separation cylinder that rolls left is magnetic pulley, the right rolling of magnetic separation
Cylinder is non magnetic roller, and magnetic separation rolls left and be set with conveyer belt between cylinder and the right roller of magnetic separation, the middle part of magnetic separation mainframe from a left side to
Right to be provided with multigroup magnet up and down respectively, multigroup magnet or so arranged for interval, upward magnet is U-shaped structure, to
Under magnet be inverted U-shaped structure, upward magnet magnetism uniformly, the magnetic interlaced arrangement of upward magnet, downwards
Magnet magnetism be gradually reduced from left to right.
2. a kind of magnetic separation main conveyor of dry-type magnetic extractor according to claim 1, it is characterised in that magnetic separation mainframe
Middle part is provided with multigroup conveyer belt supporting block up and down respectively from left to right, and multigroup conveyer belt supporting block is between left and right every cloth
It sets, and multigroup conveyer belt supporting block is located in the gap of adjacent magnet, the top of upward conveyer belt supporting block is higher than
The height of upward magnet, and the top of upward conveyer belt supporting block is contacted with the medial surface of the conveyer belt of top, downwards
Conveyer belt supporting block bottom end be less than downward level-one magnet height, and the bottom end of downward conveyer belt supporting block under
The medial surface contact of the conveyer belt of side.
3. a kind of magnetic separation main conveyor of dry-type magnetic extractor according to claim 1, it is characterised in that the magnet is electricity
Permanent magnetic iron.
4. a kind of magnetic separation main conveyor of dry-type magnetic extractor according to claim 1, it is characterised in that the conveyer belt branch
Bracer is wear-resistant ceramic.
5. a kind of magnetic separation main conveyor of dry-type magnetic extractor according to claim 4, it is characterised in that wear-resistant ceramic and skin
Arrival end with contact uses graphite-based conducting bar transition.
6. a kind of dry-type magnetic extractor, it is characterised in that including a kind of main conveying of the magnetic separation of dry-type magnetic extractor described in claim 1
Machine.
7. a kind of dry-type magnetic extractor according to claim 6, it is characterised in that including upper layer and lower layer magnetic separation main conveyor, often
It is provided with one layer of subsidiary conveyer below layer magnetic separation main conveyor.
8. a kind of dry-type magnetic extractor according to claim 7, it is characterised in that magnetic separation main conveyor and subsidiary conveyer
It is respectively set in the braced frame with respective heights.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109530002A (en) * | 2019-01-11 | 2019-03-29 | 人民电器集团上海有限公司 | A kind of Copper fabrication production line |
| CN111185301A (en) * | 2020-01-10 | 2020-05-22 | 江苏梵爵科技有限公司 | Dry-type environment-friendly ore dressing system and ore dressing method |
| CN114405671A (en) * | 2022-03-30 | 2022-04-29 | 山东华特磁电科技股份有限公司 | Strong magnetic plate type magnetic separator |
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