CN202516685U - Air suction type permanent-magnet precision dressing machine - Google Patents
Air suction type permanent-magnet precision dressing machine Download PDFInfo
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- CN202516685U CN202516685U CN2012201789177U CN201220178917U CN202516685U CN 202516685 U CN202516685 U CN 202516685U CN 2012201789177 U CN2012201789177 U CN 2012201789177U CN 201220178917 U CN201220178917 U CN 201220178917U CN 202516685 U CN202516685 U CN 202516685U
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Abstract
The utility model discloses an air suction type permanent-magnet precision dressing machine which comprises a feeding port, a dry-type magnetic separation device, a tailing bin and a feed bin. The inner top wall of a cavity of the dry-type magnetic separation device is arranged obliquely, and an air extractor is mounted at an outlet end of the dry-type magnetic separation device. A first magnetic roll group and a second magnetic roll group are sequentially arranged in the cavity of the dry-type magnetic separation device along the feeding direction. By means of improvement of an air feeding mode, a disturbance device, the magnetic separation device and the like, powder flowing accuracy is improved, and magnetic separation precision is improved.
Description
Technical field
The utility model relates to dry type permanent magnetism ore concentrate machine field, particularly relates to a kind of wind-suction type permanent magnetism ore concentrate machine.
Background technology
At present China's iron ore raw ore output ranks first in the world, but the iron ore deposit of China great majority are lean ore, and amounting to amount of metal, to account for world wide production on the low side.Survey data according to China geologic survey office shows, about about 2,000,000,000 tons of global at present iron ore output, and about about 600,000,000 tons of the iron ore output of China accounts for 33% of global output.In addition, from the variety and quality of iron ore, because that domestic resource has is poor, assorted, thin, so most of ores need ore grinding and selected processing, and granule iron concentrate is called the leading products of iron ore industry.Its production at present is main with wet separation mainly, and the drawback of wet dressing is: its production process needs great amount of water resources, and the waste water serious environment pollution of discharging; Mine tailing is deposited to still need and is thrown huge fund construction mine tailing storehouse, and the existence in mine tailing storehouse causes potential security risk to the locality.Take this; The wind-force dry separation method need not water with it and CHARACTERISTICS OF TAILINGS SAND can be carried out characteristics such as harmless treatment, has enjoyed insider's concern, like wind-force dry type magnetic separation ore deposit machine etc.; But it still exists many not enough needs further to improve: when 1, direct current wind drives breeze through the dry type magnetic separation device; The breeze that passes through rapidly with the wind, especially the breeze on dry type magnetic separation device top is far away apart from the magnetic roller, is difficult to guarantee that it is scope that metal all effectively gets into magnetic, i.e. the efficient of magnetic separation is lower; 2, the magnetic separator of bleed type is had relatively high expectations to the sealing property of device, in case wind-force leaks, the mineral aggregate of powdery appears beyond the cavity with the wind, and beneficiating efficiency is low, wind-force is weak and contaminated environment; 3, the magnetic separation face of drum-type concentration equipment is shorter, and breeze passes through magnetic separation face fast, and the precision of magnetic separation is lower.
The utility model content
The purpose of the utility model is in order to solve the deficiency of above-mentioned technology, a kind of wind-suction type permanent magnetism ore concentrate machine to be provided.The utility model passes through the improvement to the innovative form of aspects such as air intake mode, disturbance device, concentration equipment, has improved the precision of magnetic separation.
In order to achieve the above object; The technical scheme that the utility model provided is: a kind of wind-suction type permanent magnetism ore concentrate machine; It comprises charging aperture (1), dry type magnetic separation device (2), tailing storehouse (3) and feed bin (4); Said charging aperture (1) is installed in the arrival end of dry type magnetic separation device (2), and said tailing storehouse (3) is installed in the port of export of dry type magnetic separation device (2), and said feed bin (4) is arranged on the bottom of dry type magnetic separation device (2); The cavity inner roof wall (21) of said dry type magnetic separation device (2) is obliquely installed, and at the port of export of dry type magnetic separation device (2) air extractor (5) is installed; In the cavity of dry type magnetic separation device (2), be disposed with the first magnetic roller group (6) and the second magnetic roller group (7) along the pan feeding direction; The magnetic separation face of the said first magnetic roller group (6) comprises the arc magnetic separation face (61) at both ends and the plane magnetic separation face (62) between the both ends, and said plane magnetic separation face (62) is obliquely installed.
Further; The said first magnetic roller group (6) comprises permanent magnetic roll assembly of roll magnetic separator A (63), permanent magnetic roll assembly of roll magnetic separator B (64), conveyer belt (65) and first dynamical system (66); Said permanent magnetic roll assembly of roll magnetic separator A (63) is fixedly connected through connector (67) with permanent magnetic roll assembly of roll magnetic separator B (64); Said conveyer belt (65) is wrapped up in and is contained on permanent magnetic roll assembly of roll magnetic separator A (63) and the permanent magnetic roll assembly of roll magnetic separator B (64), and said first dynamical system (66) is used to drive conveyer belt (65).
Further; The said second magnetic roller group (7) comprises permanent magnetic roll assembly of roll magnetic separator (71), cylinder (72) and second dynamical system (73); Said cylinder (72) is sleeved on the fixing permanent magnetic roll assembly of roll magnetic separator (71), and said second dynamical system (73) is used for head roll (72).
Further, said feed bin (4) comprises first feed bin (41) and second feed bin (42), and said first feed bin (41) is positioned at the first magnetic roller group (6) below and is provided with in pairs, and said second feed bin (42) is positioned at the second magnetic roller group (7) below.
Further; It comprises that also first disturbs material wind wheel (8) and second and disturb and expect wind wheel (9); Said first disturb the material wind wheel (8) be installed in the first magnetic roller group (6), the second corresponding cavity inner roof wall of magnetic roller group (7) (21) on, said second disturb the material wind wheel (9) is installed on the cavity inner roof wall (21) between the first magnetic roller group (6) and the second magnetic roller group (7).
Further; It also comprises magnetic separation guide plate (10); Said magnetic separation guide plate (10) is packed between the magnetic separation face of the first magnetic roller group (6) and the second magnetic roller group (7); The distance of magnetic separation guide plate (10) one ends and the first magnetic roller group (6) is set to 80mm-120mm, and the distance of its other end and the second magnetic roller group (7) is set to 8mm-12mm.
Further, it also comprises pan feeding guide plate (11), and said pan feeding guide plate (11) is packed in the arrival end of dry type magnetic separation device (2), and the distance of an end of pan feeding guide plate (11) and the first magnetic roller group (6) is set to 8mm-12mm.
Further, it also comprises tailing guide plate (12), and said tailing guide plate (12) is installed in the port of export of dry type magnetic separation device (2), and the distance of the end of tailing guide plate (12) and the second magnetic roller group (7) is set to 20mm-70mm.
Further, it also comprises feed bin guide plate (13), and said feed bin guide plate (13) is installed in the inlet of feed bin (4), and the distance of the end of feed bin guide plate (13) and the first magnetic roller group (6) or the second magnetic roller group (7) is set to 8mm-12mm.
Further, the magnetic of the arc magnetic separation face (61) of the said first magnetic roller group (6) is that scope is provided with 120 degree-150 degree.
Further, the magnetic of the said second magnetic roller group (7) is that scope is set to 220 degree-240 degree.
Further, the distance of said plane magnetic separation face (62) and cavity inner roof wall (21) is set to the 1/10-1/20 of plane magnetic separation face (62) length.
Further, said conveyer belt (65) is formed by bar shaped corrosion resistant plate overlap joint or is the nylon belt.
Further, the said second magnetic roller group (7) is set to be higher than the first magnetic roller group (6).
Further, said first disturb material wind wheel (8) wheel footpath disturb material wind wheel (9) less than second.
Adopt technique scheme, the technique effect of the utility model has:
The innovative point one of the utility model: adopt dry separation method, effectively the conserve water resource;
The innovative point two of the utility model: innovative form magnetic separation face is designed to planar structure, prolonged magnetic separation face, effectively improved efficiency of magnetic separation;
The innovative point three of the utility model: the structure that the magnetic separation chamber is designed to be tilted to, the effect in conjunction with disturbing the material wind wheel makes breeze in the magnetic separation process, present the state of rolling, and has prolonged the holdup time of breeze in the magnetic separation chamber, to realize magnetic separation more fully;
The innovative point four of the utility model:, improve the accuracy that powder flows in mounting guiding board such as feeding mouth, discharging opening and tailing mouths;
The innovative point five of the utility model: change the bleed type structure into the bleeder structure, the pollution situation of the dust of effectively having avoided leaking, and to magnetic separation chamber sealing property require lessly, reduced processing cost.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Wherein: 1 charging aperture, 2 dry type magnetic separation devices, 21 cavity inner roof walls, 3 tailing storehouses, 4 feed bins, 41 first feed bins, 42 second feed bins; 5 air extractors, 6 first magnetic roller groups, 61 arc magnetic separation faces, 62 plane magnetic separation faces, 63 permanent magnetic roll assembly of roll magnetic separator A, 64 permanent magnetic roll assembly of roll magnetic separator B, 65 conveyer belts; 66 first dynamical systems, 67 connectors, 7 second magnetic roller groups, 71 permanent magnetic roll assembly of roll magnetic separators, 72 cylinders, 73 second dynamical systems; 8 first disturb the material wind wheel, and 9 second disturb the material wind wheel, 10 magnetic separation guide plates, 11 pan feeding guide plates, 12 tailing guide plates, 13 feed bin guide plates.
The specific embodiment
The specific embodiment below in conjunction with description of drawings the utility model.
Embodiment as shown in Figure 1, a kind of wind-suction type permanent magnetism ore concentrate machine, it comprises charging aperture 1, dry type magnetic separation device 2, tailing storehouse 3 and feed bin 4, charging aperture 1 is installed in the arrival end of dry type magnetic separation device 2, is used in the magnetic separation chamber, carrying breeze; Tailing storehouse 3 is installed in the port of export of dry type magnetic separation device 2, preferably adopts common tailing storehouse and dust recovery bin assembled classification to reclaim tailing; Feed bin 4 is arranged on the bottom of dry type magnetic separation device 2, is used to collect the metal that magneticly elects; The cavity inner roof wall 21 of dry type magnetic separation device 2 is obliquely installed, promptly along the pan feeding direction along the direction setting that is tilted to; The port of export at dry type magnetic separation device 2 is equipped with air extractor 5, promptly realizes the wind-suction type pan feeding, and is relatively low to the sealing requirements of concentration equipment, and do not have the breeze contaminated environment that leaks; In the cavity of dry type magnetic separation device 2, be disposed with the first magnetic roller group 6 and the second magnetic roller group 7 along the pan feeding direction; The magnetic separation face of the first magnetic roller group 6 comprises the arc magnetic separation face 61 at both ends and the plane magnetic separation face 62 between the both ends, and plane magnetic separation face 62 is obliquely installed, and promptly is tilted to setting along the pan feeding direction; The cavity inner roof wall 21 almost parallel settings of plane magnetic separation face 62 and dry type magnetic separation device 2; The breeze magnetic separation passage that formation is tilted to, breeze are under the comprehensive function of gravity and wind-force thereof, and constantly up and down play moves ahead; Increased the holdup time in the magnetic separation cavity; Improved efficiency of magnetic separation, preferred, the distance of plane magnetic separation face 62 and cavity inner roof wall 21 is set to the 1/10-1/20 of plane magnetic separation face 62 length (along the length of pan feeding direction); On cavity inner roof wall 21 corresponding to the first magnetic roller group 6; And with the second magnetic roller group, 7 corresponding cavity inner roof walls 21 on; Be respectively arranged with one group above first and disturb material wind wheel 8, on cavity inner roof wall 21, also be provided with second and disturb material wind wheel 9, the first and disturb the wheel footpath of material wind wheel 8 and disturb material wind wheel 9 less than second; Second disturbs material wind wheel 9 corresponding between the first magnetic roller group and the second magnetic roller group 7; First disturbs material wind wheel 8 and second, and to disturb material wind wheel 9 be power with air extractor 5, to breeze generation disturbance effect, further increased the holdup time of breeze in the magnetic separation cavity under the rotary action; And make breeze present mixed and disorderly state, increased the probability of close contact magnetic separation face.
Wherein, the second magnetic roller group 7 is set to be higher than the first magnetic roller group, 6, the first magnetic roller groups 6 and comprises permanent magnetic roll assembly of roll magnetic separator A63, permanent magnetic roll assembly of roll magnetic separator B64, conveyer belt 65 and first dynamical system 66; Permanent magnetic roll assembly of roll magnetic separator A63 is fixedly connected through connector 67 with permanent magnetic roll assembly of roll magnetic separator B64; Conveyer belt 65 is wrapped up in and is contained on permanent magnetic roll assembly of roll magnetic separator A63 and the permanent magnetic roll assembly of roll magnetic separator B64, and first dynamical system 66 drives and connects conveyer belt 65, and conveyer belt 65 is formed by bar shaped corrosion resistant plate overlap joint; With respect to existing Rubber Conveyor Belt Scrap; Steel plate material can reduce the thickness of conveyer belt under the prerequisite of proof strength, help penetrating of magnetic force, and the magnetic of permanent magnetic roll assembly of roll magnetic separator A63 is that scope is set to 120 degree-150 degree (being preferably 140 degree) formation arc magnetic separation face 61; Connector 67 is provided with plane magnetic separation face 62; The arc magnetic separation face at both ends combines the plane magnetic separation face design between the two, has effectively increased the length of magnetic separation area and magnetic separation face, with the precision of further raising magnetic separation; The second magnetic roller group 7 comprises permanent magnetic roll assembly of roll magnetic separator 71, cylinder 72 and second dynamical system 73; Cylinder 72 is sleeved on the fixing permanent magnetic roll assembly of roll magnetic separator 71; Second dynamical system 73) driving the magnetic that connects cylinder 72, the second magnetic roller groups 7 is that scope is set to 220 degree-240 degree (being preferably 230 degree).Feed bin 4 wherein comprises first feed bin 41 and second feed bin, 42, the first feed bins 41 corresponding to the below of the first magnetic roller group 6 and setting in pairs (owing to be arranged side by side, Fig. 1 only can show), and second feed bin 42 is provided with corresponding to the below of the second magnetic roller group 7.Between the magnetic separation face of the first magnetic roller group 6 and the second magnetic roller group 7, be fixed with magnetic separation guide plate 10; Be used to guide the flow direction of breeze; Prevent that breeze from dropping between the first magnetic roller group 6 and the second magnetic roller group 7; Preferably, the distance of an end of magnetic separation guide plate 10 and the first magnetic roller group 6 is set to 80mm-120mm (being preferably 100mm), and the distance of its other end and the second magnetic roller group 7 is set to 8mm-12mm (being preferably 10mm); Arrival end at dry type magnetic separation device 2 is fixed with pan feeding guide plate 11; To prevent that breeze from dropping between the arrival end and the second magnetic roller group 7; Make breeze by on effective guidance to the magnetic separation face; Preferably, the distance of an end of pan feeding guide plate 11 and the first magnetic roller group 6 is set to 8mm-12mm (being preferably 10mm); The port of export at dry type magnetic separation device 2 is fixed with tailing guide plate 12, falls in the feed bin with remaining tailing after preventing the process magnetic separation, and preferred, the distance of the end of tailing guide plate 12 and the second magnetic roller group 7 is set to 20mm-70mm (being preferably 50mm); Inlet at feed bin 4 is fixed with feed bin guide plate 13, is used for guiding the metal that magneticly elects to fall into to feed bin, and the distance of the end of feed bin guide plate 13 and the first magnetic roller group 6 or the second magnetic roller group 7 preferably is set to 8mm-12mm (being preferably 10mm).
The utility model is when implementing; Breeze is in charging aperture 1 is sent into the magnetic separation chamber, and breeze is inhaled under the effect of air extractor 5 and moves ahead, and first-selection is carried out magnetic separation through the first magnetic roller group 6; Concrete is through between the magnetic separation face and cavity inner roof wall that are obliquely installed; Magnetic metal pruinescence wherein is adsorbed on the magnetic roll surface, and when being transferred to the magnetic that breaks away from the first magnetic roller group along with the rotation of conveyer belt 65 and being scope, the magnetic metal powder breaks away from first feed bin 41 that conveyer belt falls into the below; Remaining breeze continues to proceed to the second magnetic roller group 7 with wind-force; Breeze is carried out further magnetic separation, and the magnetic metal pruinescence that is not magneticly elected through magnetic separation for the first time is adsorbed on the cylinder 72, along with turning to of cylinder 72 breaks away from magnetic when being scope; The magnetic metal powder falls into to second feed bin 42, and final remaining tailing is evacuated in the tailing storehouse 3 through air extractor 5 and collects, handles.
What should explain at last is; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the spirit and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (15)
1. wind-suction type permanent magnetism ore concentrate machine; It comprises charging aperture (1), dry type magnetic separation device (2), tailing storehouse (3) and feed bin (4); Said charging aperture (1) is installed in the arrival end of dry type magnetic separation device (2); Said tailing storehouse (3) is installed in the port of export of dry type magnetic separation device (2); Said feed bin (4) is arranged on the bottom of dry type magnetic separation device (2), it is characterized in that: the cavity inner roof wall (21) of said dry type magnetic separation device (2) is obliquely installed, and at the port of export of dry type magnetic separation device (2) air extractor (5) is installed; In the cavity of dry type magnetic separation device (2), be disposed with the first magnetic roller group (6) and the second magnetic roller group (7) along the pan feeding direction; The magnetic separation face of the said first magnetic roller group (6) comprises the arc magnetic separation face (61) at both ends and the plane magnetic separation face (62) between the both ends, and said plane magnetic separation face (62) is obliquely installed.
2. wind-suction type permanent magnetism ore concentrate machine according to claim 1; It is characterized in that: the said first magnetic roller group (6) comprises permanent magnetic roll assembly of roll magnetic separator A (63), permanent magnetic roll assembly of roll magnetic separator B (64), conveyer belt (65) and first dynamical system (66); Said permanent magnetic roll assembly of roll magnetic separator A (63) is fixedly connected through connector (67) with permanent magnetic roll assembly of roll magnetic separator B (64); Said conveyer belt (65) is wrapped up in and is contained on permanent magnetic roll assembly of roll magnetic separator A (63) and the permanent magnetic roll assembly of roll magnetic separator B (64), and said first dynamical system (66) is used to drive conveyer belt (65).
3. wind-suction type permanent magnetism ore concentrate machine according to claim 1; It is characterized in that: the said second magnetic roller group (7) comprises permanent magnetic roll assembly of roll magnetic separator (71), cylinder (72) and second dynamical system (73); Said cylinder (72) is sleeved on the fixing permanent magnetic roll assembly of roll magnetic separator (71), and said second dynamical system (73) is used for head roll (72).
4. wind-suction type permanent magnetism ore concentrate machine according to claim 1; It is characterized in that: said feed bin (4) comprises first feed bin (41) and second feed bin (42); Said first feed bin (41) is positioned at the first magnetic roller group (6) below and is provided with in pairs, and said second feed bin (42) is positioned at the second magnetic roller group (7) below.
5. according to the described wind-suction type permanent magnetism of the arbitrary claim of claim 1-4 ore concentrate machine; It is characterized in that: it comprises that also first disturbs material wind wheel (8) and second and disturb and expect wind wheel (9); Said first disturb the material wind wheel (8) be installed in the first magnetic roller group (6), the second corresponding cavity inner roof wall of magnetic roller group (7) (21) on, said second disturb the material wind wheel (9) is installed on the cavity inner roof wall (21) between the first magnetic roller group (6) and the second magnetic roller group (7).
6. according to the described wind-suction type permanent magnetism of the arbitrary claim of claim 1-4 ore concentrate machine; It is characterized in that: it also comprises magnetic separation guide plate (10); Said magnetic separation guide plate (10) is packed between the magnetic separation face of the first magnetic roller group (6) and the second magnetic roller group (7); The distance of magnetic separation guide plate (10) one ends and the first magnetic roller group (6) is set to 80mm-120mm, and the distance of its other end and the second magnetic roller group (7) is set to 8mm-12mm.
7. according to the described wind-suction type permanent magnetism of the arbitrary claim of claim 1-4 ore concentrate machine; It is characterized in that: it also comprises pan feeding guide plate (11); Said pan feeding guide plate (11) is packed in the arrival end of dry type magnetic separation device (2), and the distance of an end of pan feeding guide plate (11) and the first magnetic roller group (6) is set to 8mm-12mm.
8. according to the described wind-suction type permanent magnetism of the arbitrary claim of claim 1-4 ore concentrate machine; It is characterized in that: it also comprises tailing guide plate (12); Said tailing guide plate (12) is installed in the port of export of dry type magnetic separation device (2), and the distance of the end of tailing guide plate (12) and the second magnetic roller group (7) is set to 20mm-70mm.
9. according to the described wind-suction type permanent magnetism of the arbitrary claim of claim 1-4 ore concentrate machine; It is characterized in that: it also comprises feed bin guide plate (13); Said feed bin guide plate (13) is installed in the inlet of feed bin (4), and the distance of the end of feed bin guide plate (13) and the first magnetic roller group (6) or the second magnetic roller group (7) is set to 8mm-12mm.
10. according to the described wind-suction type permanent magnetism of the arbitrary claim of claim 1-4 ore concentrate machine, it is characterized in that: the magnetic of the arc magnetic separation face (61) of the said first magnetic roller group (6) is that scope is provided with 120 degree-150 degree.
11. according to the described wind-suction type permanent magnetism of the arbitrary claim of claim 1-4 ore concentrate machine, it is characterized in that: the magnetic of the said second magnetic roller group (7) is that scope is set to 220 degree-240 degree.
12. wind-suction type permanent magnetism ore concentrate machine according to claim 2 is characterized in that: the distance of said plane magnetic separation face (62) and cavity inner roof wall (21) is set to the 1/10-1/20 of plane magnetic separation face (62) length.
13. wind-suction type permanent magnetism ore concentrate machine according to claim 2 is characterized in that: said conveyer belt (65) is formed by bar shaped corrosion resistant plate overlap joint or is the nylon belt.
14. according to claim 2 or 3 described wind-suction type permanent magnetism ore concentrate machines, it is characterized in that: the said second magnetic roller group (7) is set to be higher than the first magnetic roller group (6).
15. wind-suction type permanent magnetism ore concentrate machine according to claim 5 is characterized in that: said first disturbs the wheel footpath of expecting wind wheel (8) disturbs material wind wheel (9) less than second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201789177U CN202516685U (en) | 2012-04-25 | 2012-04-25 | Air suction type permanent-magnet precision dressing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201789177U CN202516685U (en) | 2012-04-25 | 2012-04-25 | Air suction type permanent-magnet precision dressing machine |
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| Publication Number | Publication Date |
|---|---|
| CN202516685U true CN202516685U (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201789177U Expired - Fee Related CN202516685U (en) | 2012-04-25 | 2012-04-25 | Air suction type permanent-magnet precision dressing machine |
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| Country | Link |
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| CN (1) | CN202516685U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102631986A (en) * | 2012-04-25 | 2012-08-15 | 隋鑫 | Air-suction type permanent magnet ore concentrating machine |
| CN114308657A (en) * | 2022-02-16 | 2022-04-12 | 深圳市博华装饰有限公司 | A gravity screening ore sand device for in aspect of building |
-
2012
- 2012-04-25 CN CN2012201789177U patent/CN202516685U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102631986A (en) * | 2012-04-25 | 2012-08-15 | 隋鑫 | Air-suction type permanent magnet ore concentrating machine |
| CN114308657A (en) * | 2022-02-16 | 2022-04-12 | 深圳市博华装饰有限公司 | A gravity screening ore sand device for in aspect of building |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20170425 |