CN220530892U - Multi-filter-disc large-disc-diameter mining filter central shaft - Google Patents
Multi-filter-disc large-disc-diameter mining filter central shaft Download PDFInfo
- Publication number
- CN220530892U CN220530892U CN202322018359.9U CN202322018359U CN220530892U CN 220530892 U CN220530892 U CN 220530892U CN 202322018359 U CN202322018359 U CN 202322018359U CN 220530892 U CN220530892 U CN 220530892U
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- Prior art keywords
- filter
- flow channel
- disc
- runner
- layer space
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- 238000005065 mining Methods 0.000 title claims description 15
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 3
- 238000007664 blowing Methods 0.000 abstract description 16
- 230000004888 barrier function Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000000706 filtrate Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The inner part of the flow channel is provided with a baffle plate, the baffle plate divides the flow channel into an outer layer space and an inner layer space which are mutually independent, the middle part of the outer layer space is provided with a baffle plate, the outer layer space between the baffle plate and a flange at the end part of the central tube body is an outer flow channel, the inner layer space is an inner flow channel, the outer flow channel and the inner flow channel are respectively provided with a wear-resistant lining, and the multiple filter discs in the axial direction are more uniform in distribution of vacuum overflow, blowing air quantity and the like through independent layering design of the inner flow channel and the outer flow channel, so that the condition that a filter plate in the middle of a main shaft cannot work due to insufficient blowing or vacuum is thoroughly avoided, and the design barrier of the large-scale multiple filter disc filter is broken through; the thickness of the lining of the inner six channels and the outer channel is increased at the bottom which is easy to wear, so that the service life of the main shaft is greatly prolonged; each pipeline is internally provided with a lining, so that all the overflow parts are guaranteed to have wear resistance in design.
Description
Technical Field
The utility model relates to the technical field of disc filters, in particular to a central shaft of a multi-filter-disc large-disc-diameter mining filter.
Background
The main equipment for mine concentrate and tailing dehydration is mainly disc type filter and filter press, along with gradual concentration of mine enterprises and depletion of mineral resources, the scale of a concentrating mill is also rapidly increased, the common filter press and filter press can not meet the modern concentrate and tailing treatment requirements, especially in large-scale foreign metal concentrating mills, in order to reduce the equipment quantity, reduce the running cost and improve the dehydration efficiency, and a stable and reliable large-scale disc type filter is needed.
The development of large disc filters is divided into two directions, one is to increase the disc diameter to increase the filtration area; and secondly, the number of discs is increased. However, in the past, the large-scale of the disc filter has obvious bottleneck, mainly because the disc diameter is increased, the filter cloth is difficult to be sleeved, the filter plate is too heavy, and the maintenance efficiency is low; the number of discs is increased to cause the overlong main shaft, and a plurality of filter discs are arranged on the same flow channel, so that when blowing and discharging are performed, the filter discs close to the blowing port are higher in vacuum pumping quantity, higher in wind pressure and higher in filter cake dewatering efficiency and discharging efficiency; the vacuum pumping quantity of the filter disc far away from the blowing port is lower, the blowing wind pressure is lower, even no wind pressure exists, the filtering and discharging efficiency is lower, and therefore the large-scale of the disc filter is limited.
The central shaft of the filter is a key component of the disc filter, and is not only a core bearing component, but also a filtrate flow component, on which the filter disc device, the distribution head, the transmission device and the like are respectively arranged, and when the main shaft rotates, the filter disc also rotates along with the main shaft to adsorb slurry.
The filtrate with high flow rate is conveyed to the distribution heads at the two end surfaces through the flow channel of the central shaft, and the pulp has strong impact on the flow channel, so that the flow channel is easy to wear. If the central shaft is worn, poor wear resistance and poor sealing performance can lead to the air leakage of each channel, a large amount of slurry leakage, great maintenance workload, influence on the operation of the whole equipment system and cause serious economic loss. As a water channel for vacuum suction, filtrate discharge, compressed air and filter cloth regeneration, the central shaft flow channel needs to be abrasion-resistant, stable and reliable and has long service life, and when the filter cloth is damaged, the impact and abrasion of ore pulp to the central shaft are avoided.
Disclosure of Invention
In order to overcome the defects, the utility model provides a central shaft of a multi-filter-disc large-disc-diameter mining filter.
The utility model solves the technical problems by adopting the technical scheme that:
the central shaft of the multi-filter-disc large-disc-diameter mining filter comprises a shaft body, wherein the shaft body comprises a central pipe body and flow channels, a spacing annular plate is arranged in the middle of the central pipe body, a plurality of flow channels with inverted trapezoid cross sections are arranged along the circumferential direction of the central pipe body in an equal division manner, the spacing annular plate is perpendicular to the flow channels, and the flow channels at two sides of the spacing annular plate are mutually independent; the inner part of the flow channel is provided with a baffle plate, the baffle plate divides the flow channel into an outer layer space and an inner layer space which are mutually independent, the middle part of the outer layer space is provided with a baffle plate, the outer layer space between the baffle plate and the flange at the end part of the central tube body is an outer flow channel, the inner layer space is an inner flow channel, and wear-resistant bushings are arranged in the outer flow channel and the inner flow channel; the outer side of the shaft body is provided with a plurality of lantern rings at equal intervals along the axial direction, the lantern rings are provided with mounting holes for fixing the sector plates, the lantern rings corresponding to the areas where the outer flow channels are located are communicated with the outer flow channels through pipelines, and the remaining lantern rings are communicated with the inner flow channels through pipelines.
The cross-sectional areas of the outer flow channel and the inner flow channel are the same.
The length of the outer runner is half of that of the inner runner.
The number of the filter discs communicated with the outer flow channel and the inner flow channel is the same.
And the pipeline in which the outer runner and the inner runner are communicated with the lantern ring is internally provided with a wear-resistant lining.
The wear-resistant lining is an ultra-high molecular weight polyethylene special pipe and is adhered to the inner wall of the pipeline or the runner through a resin adhesive.
The thickness of the wear-resistant lining at the bottoms of the outer runner and the inner runner is larger than that of the other sides.
By adopting the technical scheme, the utility model has the following advantages:
according to the central shaft of the multi-filter-disc large-disc-diameter mining filter, the two end supporting shafts are arranged through interference fit, so that the coaxiality of a main shaft is guaranteed, the diameter of the main shaft is reduced, and the cost is reduced; the independent layered design of the inner layer and the outer layer ensures that a plurality of filter discs in the axial direction are more uniformly distributed in terms of vacuum overflow rate, blowing air quantity and the like, thoroughly avoids the condition that a filter plate in the middle of a main shaft cannot work due to insufficient blowing or vacuum, and breaks through the design barrier of a large-scale multi-filter disc filter; the thickness of the lining of the inner runner and the lining of the outer runner is increased at the bottom which is easy to wear, so that the service life of the main shaft is greatly prolonged; each pipeline is internally provided with a lining, so that all the overflow parts are guaranteed to have wear resistance in design.
Drawings
FIG. 1 is a schematic diagram of the structure of a shaft body of a multi-filter-disc large-disc-diameter mining filter;
FIG. 2 is a cross-sectional view of the structure of the central shaft body and the outer flow channel;
FIG. 3 is a cross-sectional view of the structure of the central shaft body and the inner flow channel;
the device comprises a driving end supporting shaft 1, a lining 2, a lining 3, an outer runner 4, a lantern ring 5, an inner runner 6, a non-driving end supporting shaft 7 and a baffle plate; 8. spacer ring plate 10, mounting hole 11, end flange 12, pipeline 13, baffle.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
The central shaft of the multi-filter-disc large-disc-diameter mining filter comprises a shaft body, wherein the shaft body comprises a central tube body and flow channels, a spacing annular plate 8 is arranged in the middle of the central tube body, the spacing annular plate 8 is vertically arranged along the circumference of the central tube body, a plurality of flow channels with inverted trapezoid cross sections are uniformly arranged in an indexing manner along the circumferential direction of the central tube body, the spacing annular plate 8 is vertical to the flow channels, and the flow channels at two sides of the spacing annular plate are mutually independent; as shown in fig. 1, the central tube body is divided into a left section and a right section by the spacing ring plate 8, the flow channels of the left section and the right section are mutually independent, the flow channel of the left section is used for blowing or vacuumizing the filter disc on the shaft body of the left section, and the flow channel of the right section is used for blowing or vacuumizing the filter disc on the shaft body of the right section.
As shown in fig. 1, 2 and 3, a partition 13 is arranged in the runner, the partition 13 divides the runner into an outer space and an inner space which are independent of each other, the cross sections of the inner space and the outer space are the same, a baffle 7 is arranged in the middle of the outer space, the baffle 7 divides the outer space into two uniform sections, namely a left section outer space and a right section outer space, the outer space between the baffle 7 and an end flange 11 of the central pipe body is an outer runner 3, the outer runner 3 is the left section outer space, the inner space is an inner runner 5, the length of the outer runner 3 is half of that of the inner runner 5, wear-resistant bushings 2 are arranged in the outer runner 3 and the inner runner 5, and the cross sections of the outer runner 3 and the inner runner 5 are the same. Through independent layering design of the inner flow channel and the outer flow channel, and the sectional areas of the inner flow channel 3 and the outer flow channel 5 are the same, so that a plurality of filter discs in the axial direction are more uniform in distribution of vacuum overflow rate, blowing air quantity and the like, the condition that a filter plate in the middle of a main shaft cannot work due to insufficient blowing or vacuum is thoroughly avoided, and the design barrier of a large-scale multi-filter disc filter is broken through.
The outside of axis body is equipped with a plurality of lantern rings 4 along axial equidistant, be equipped with mounting hole 10 on the lantern ring 4 for fixed sector plate just forms a filter disc after the sector plate on every lantern ring 4 is fixed, lantern ring 4 that the regional correspondence of outer runner 3 place passes through pipeline 12 and outer runner 3 UNICOM, and remaining lantern ring 4 passes through pipeline 12 and interior runner intercommunication. As shown in figure 1, the filter discs on the first three lantern rings 4 of the left section of the shaft body are communicated with the outer runner 3, the filter discs on the last three lantern rings 4 are communicated with the inner runner 5, and because the cross sections of the outer runner 3 and the inner runner 5 are the same, the vacuum overflow rate and the blowing air quantity are the same, even if the 3 filter discs communicated with the inner runner 5 are positioned at the middle section of the shaft body, the vacuum overflow rate and the blowing air quantity of the three filter discs are the same as those of the first 3 filter discs close to the end of the shaft body, thereby avoiding the situation that the filter plate in the middle of the main shaft cannot work due to insufficient blowing or vacuum, and breaking through the design barrier of the large-scale multi-filter disc filter.
As shown in fig. 1, the number of the filter discs communicated with the outer flow channel 3 and the inner flow channel 5 is the same, for example, 3 filter discs on the left side of the shaft body, which are close to the end flange 11, are communicated with the outer flow channel 4, 3 filter discs on the right side of the shaft body, which are close to the end flange 11, are communicated with the inner flow channel 5, and 3 filter discs on the right side of the shaft body, which are close to the end flange 11, are communicated with the outer flow channel 4, and 3 filter discs on the right side of the shaft body, which are far from the end flange 11, are communicated with the inner flow channel 5. The end flange 11 interfaces with a distribution pad, the distribution pad openings corresponding to the cross-sections of the inner flow channel 3 and the outer flow channel 5 to ensure the flow channel independence. The two flow channels which are separated independently can ensure that the filtrate and the vacuum system are independent of each other, and can ensure that the air quantity of the air blowing of the filter plate close to the center is equal to that of the filter plate close to the shaft end, the air pressure is not affected, and particularly the filter plate close to the center can effectively blow and discharge.
The wear-resistant lining 2 is arranged in a pipeline 12 which is communicated with the lantern ring 4 through the outer runner 3 and the inner runner 5. The wear-resistant bushings are ultra-high molecular weight polyethylene special pipes, are adhered to the inner wall of the pipeline 12 or the runner through resin adhesives, are provided with the bushings 2 in each pipeline, and are designed to ensure that all the overflowing parts have wear resistance.
As shown in fig. 2 and 3, the thickness of the wear-resistant lining at the bottom of the outer runner 3 and the inner runner 5 is larger than that of the other sides, and the thickness of the lining 2 of the inner runner 3 and the outer runner 4 is increased at the bottom which is easy to wear, so that the service life of the main shaft is greatly prolonged.
In order to ensure coaxiality, the diameter of the main shaft is reduced, the bearing shafts at the two ends are respectively installed with the driving end supporting shaft 1 and the non-driving end supporting shaft 6 in an interference fit mode, and welding is performed after installation, so that the strength and the operation reliability of the main shaft are ensured.
The above is not described in detail in the prior art.
Claims (7)
1. A multi-filter-disc large-disc-diameter mining filter central shaft is characterized in that: the axial body comprises a central pipe body and flow channels, wherein a spacing annular plate is arranged in the middle of the central pipe body, a plurality of flow channels with inverted trapezoid cross sections are arranged along the circumferential direction of the central pipe body in an equal division mode, the spacing annular plate is perpendicular to the flow channels, and the flow channels on two sides of the spacing annular plate are mutually independent; the inner part of the flow channel is provided with a baffle plate, the baffle plate divides the flow channel into an outer layer space and an inner layer space which are mutually independent, the middle part of the outer layer space is provided with a baffle plate, the outer layer space between the baffle plate and the flange at the end part of the central tube body is an outer flow channel, the inner layer space is an inner flow channel, and wear-resistant bushings are arranged in the outer flow channel and the inner flow channel; the outer side of the shaft body is provided with a plurality of lantern rings at equal intervals along the axial direction, the lantern rings are provided with mounting holes for fixing the sector plates, the lantern rings corresponding to the areas where the outer flow channels are located are communicated with the outer flow channels through pipelines, and the remaining lantern rings are communicated with the inner flow channels through pipelines.
2. The central shaft of a multi-filter-disc large-disc-diameter mining filter according to claim 1, wherein: the cross-sectional areas of the outer flow channel and the inner flow channel are the same.
3. The central shaft of a multi-filter-disc large-disc-diameter mining filter according to claim 1, wherein: the length of the outer runner is half of that of the inner runner.
4. A multi-filter-disc large-diameter mining filter central shaft according to claim 1 or 3, characterized in that: the number of the filter discs communicated with the outer flow channel and the inner flow channel is the same.
5. The central shaft of a multi-filter-disc large-disc-diameter mining filter according to claim 1, wherein: and the pipeline in which the outer runner and the inner runner are communicated with the lantern ring is internally provided with a wear-resistant lining.
6. A multi-filter-disc large-diameter mining filter central shaft according to claim 1 or 5, characterized in that: the wear-resistant lining is an ultra-high molecular weight polyethylene special pipe and is adhered to the inner wall of the pipeline or the runner through a resin adhesive.
7. The central shaft of the multi-filter-disc large-disc-diameter mining filter is characterized in that: the thickness of the wear-resistant lining at the bottoms of the outer runner and the inner runner is larger than that of the other sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322018359.9U CN220530892U (en) | 2023-07-31 | 2023-07-31 | Multi-filter-disc large-disc-diameter mining filter central shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322018359.9U CN220530892U (en) | 2023-07-31 | 2023-07-31 | Multi-filter-disc large-disc-diameter mining filter central shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220530892U true CN220530892U (en) | 2024-02-27 |
Family
ID=89975648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322018359.9U Active CN220530892U (en) | 2023-07-31 | 2023-07-31 | Multi-filter-disc large-disc-diameter mining filter central shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220530892U (en) |
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2023
- 2023-07-31 CN CN202322018359.9U patent/CN220530892U/en active Active
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