CN107020197A - Capacity-increasing type classification savings is slipped - Google Patents
Capacity-increasing type classification savings is slipped Download PDFInfo
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- CN107020197A CN107020197A CN201610071827.0A CN201610071827A CN107020197A CN 107020197 A CN107020197 A CN 107020197A CN 201610071827 A CN201610071827 A CN 201610071827A CN 107020197 A CN107020197 A CN 107020197A
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- hopper
- grid
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- flat board
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
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Abstract
Slipped the present invention relates to a kind of capacity-increasing type classification savings, with hopper, hopper bottom support channel-section steel, the perpendicular support of hopper, infiltration pond, filter；Transition platform support of the described hopper by flat board hopper, with transition platform, it is preceding in after the material-dividing grooves of three sections of grids constitute, the tail end of flat board hopper is connected by transition platform with the head end of material-dividing groove；The ore pulp that will be entered by flat board hopper after grid do dilatation processing, and flow of slurry is shared by extension mode, that is, expand flow of slurry width, so as to slow down flow rate of pulp, have goldc grains and extraordinary retain condition；Bulky grain goldc grains flow to material-dividing groove with the ore pulp anxious compared with flow velocity, because the gap for being not more than 3 millimeters between the stupefied bar of grid causes the gold sand of fine particle to stay on the sufficiently large flat board groove of area；Simultaneously as multiple row, the design of multiple rows of bleeder so that the trickleer goldc grains flowed to respectively from bleeder on the golden felt bed of each layer is all stayed on the golden felt that each layer is risen as high as the banks.
Description
Technical field
The present invention relates to a kind of device for gathering ore in sand form gold, specifically a kind of capacity-increasing type classification savings is slipped.
Background technology
Collection ore in sand form, alluvial gold have it from ancient times, by groove, the purpose that instrument realizes panning in the presence of current such as slip.
China Patent Publication No. CN101298063A discloses entitled《A kind of river sand concentrating machine》, it includes washing ore-dressing plant, Ore separation device and power set, washing ore-dressing plant and Ore separation device are connected with power set respectively, washing ore-dressing plant is included to inhale transmission device and tumbler of the golden blanket as transmission belt, Ore separation device includes sorting groove and separator plate, wash the connection corresponding with the entrance of guide groove or conduit of ore-dressing plant one end, the other end of guide groove or conduit is connected by sorting groove with Ore separation device, the level trough bottom of sorting groove is provided with mercury sorting groove, mercury face is less than bottom land bottom surface, separator plate is provided with above the groove face of the other end of sorting groove, the groove bottom of the end end is provided with notch, the other end in separator plate corresponding with notch is provided with sorting magnet.
Chinese patent notification number CN2041194117U discloses entitled《Closed panning machine》, one end top of the equipment rack is equipped with the blow tank connection separation barrel separated below hopper, separation hopper, it is the bracket in the frame of lifting below separation barrel, the fixed swinging chute with roller on bracket, the groove bottom stickers lining of swinging chute has felt, and the transverse direction for having segmentation along bottom land works as bar.Spray header is distinguished on separation barrel and swinging chute.It is linked to below bracket by motor-driven toggle, in frame top and the fixed sealing machine shell of surrounding.
Chinese patent publication No. CN101703962A discloses entitled《Double-groove river sand concentrating machine》, mainly using inhaling, golden conveyer belt is acted on the husky suction shield of ore deposit the equipment and mercury sorts alluvial gold and iron ore is sorted.
Chinese patent notification number CN202762535U discloses entitled《Double drum type alluvial gold extraction equipment》, the equipment is that inner roller and outer roller are installed in frame, and each cylinder connects respective power set respectively, and the barrel of inner cylinder is provided with screening area, and the downstream of outer barrel is provided with bolter, and two cylinder panning chutes work simultaneously extracts bulky grain gold with fine sand gold respectively.
According to document above it can be seen that on the operating type for obtaining alluvial gold, or by the way of mercury is sorted, or using many, the structure of short groove, and respective purpose is provided to gather alluvial gold as much as possible.It is unsatisfactory with above-mentioned equipment availability however, it was verified that the acquisition of fine particles alluvial gold.For example, the mode for being more than mercury using alluvial gold proportion extracts alluvial gold, although can accomplish in Active workings, but do not ensure that mercury vapour retracting device occurs without pernicious gas elegant problem when being related to specific operating mode, environmental protection is caused to be difficult to ensure that, but and the harm that brings of heavy metal pollution is difficult to eliminate in a short time.In another example, equipment with the characteristics of the structure combined by groove, cylinder or both, although also having used golden felt, but because the working area of groove or cylinder is limited to the constraint of volume itself, in big yield sand surfing, Jinsha in husky ore deposit is easily washed away, and is difficult promptly to separate alluvial gold with ore deposit sand during small water sand surfing, and now the effect of golden felt is also very little.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of capacity-increasing type classification savings and slipped, and the slow water dustpan slipped by the savings takes the operating type of multilayer water conservancy diversion to gather the particulate gold sand in ore pulp step by step, realization first take it is small after take big purpose.
Therefore, the technical scheme that the present invention solves described problem is：A kind of capacity-increasing type classification savings is slipped with hopper, hopper bottom support channel-section steel, the perpendicular support of hopper, infiltration pond, filter, wherein, it is provided with the elevating mechanism with lifting pedestal, lifter in the perpendicular support of described hopper；Transition platform support of the described hopper by flat board hopper, with transition platform, it is preceding in after the material-dividing grooves of three sections of grids constitute, the tail end of flat board hopper is connected by transition platform with the head end of material-dividing groove；At least provided with three sections of hollow frames on the bottom land flat board of the flat board hopper, one is respectively provided with each hollow frame and slips grid with grill frame, every the savings of stupefied bar；One group of grid at least being constituted by three sections and with inclined ramp is connected in the tail end of the transition platform；A guiding device being connected simultaneously with the sub-material front of the slot is connected in the lower section of the flat board hopper tail end；Described guiding device has an at least three shunting outlets, and described three shuntings outlet respectively with least three layers and be connected in the goldc grains retracting device being arranged above and below；Provided with golden felt in described goldc grains retracting device.
It is preferred that, it is hydraulic pressure lifting device or keyhole positioned-lifting device to expect the lifter in elevating mechanism.State
It is preferred that, described savings is slipped grid and constituted by grill frame, every stupefied bar, wherein, described can be that gap between reinforcing rod, every reinforcing rod is not more than 3 millimeters every stupefied bar.
It is preferred that, described goldc grains retracting device is laminated the golden felt fallen bed, golden felt by least three and constituted.
It is preferred that, described guiding device is made up of at least two rows bleeder arranged side by side, at least three layers of the bleeder of each column, and the width of every layer of delivery port is less than the width of corresponding golden felt bed.
It is preferred that, the described grid with inclined ramp, its every section grid is constituted by grill frame, every stupefied bar, wherein, the gap between every stupefied bar in the grid is not more than 20 millimeters.
It is preferred that, described golden felt bed, its towards one end of bleeder the head of a bed highly more than the height of tailstock.
It is preferred that, the density of every section of grid deck bar arrangement is that leading portion is more than stage casing, stage casing more than latter end.
Compared with prior art, the good effect that the present invention has is obvious：For collection gold sand, first take it is small after to take be the present invention greatly the problem of deliberately solve；The ore pulp that will be entered by flat board hopper after grid do dilatation processing, and flow of slurry is shared by extension mode, that is, expand flow of slurry width, so as to slow down flow rate of pulp, have goldc grains and extraordinary retain condition；If from staying in terms of small step, flat board hopper is equivalent to first order chute, because the gap for being not more than 3 millimeters between the stupefied bar of grid causes the gold sand of fine particle to stay on the sufficiently large flat board groove of area；Before in after three sections of inclined-plane grid equivalent to second level chute, in being less than more than 3 millimeters before 20 millimeters of gold sand has been stayed in after on three sections of inclined-plane grid；Simultaneously as multiple row, the design of multiple rows of bleeder so that flow to the trickleer goldc grains that each layer rises as high as the banks respectively from the bleeder of guiding device and all stay on the golden felt of the golden felt bed of each layer.
Brief description of the drawings
Fig. 1It isCapacity-increasing type classification savings slips overall structure diagram；
Fig. 2 is the structural representation on hopper in Fig. 1；
Fig. 3 is the structural representation on the layering delivery port in Fig. 1 and golden felt bed；
Fig. 4Be onThe structural representation of biserial multilayer delivery port in Fig. 3；
Fig. 5 isOnGrid frame in Fig. 2 and the structural representation every stupefied bar。
In figure：
1- hoppers, 101- flat board hoppers, 102- hollow frames, 103- slab trough floors, 104- material-dividing grooves, 105- transition platforms, 106- grid frames, 107- is every stupefied bar, 108- transition platform supports, before 109- in after three sections of grids；
2- hoppers bottom supports channel-section steel；
The perpendicular support of 3- hoppers, 301- elevating mechanisms, 302- elevating mechanism bases, 303- hydraulic pressure lifting devices（Or keyhole positioned-lifting device）；
4- filters；
5- infiltrations pond；
6- gold felt beds, 61- gold felts；
7- is layered delivery port, 71- varying elevation intakes, 72- multiple row delivery ports；
8- guiding devices；
9- gold slips base.
Embodiment
Present invention mainly solves the problem of be work pattern how to change traditional gold dust collection " take and abandon small greatly ", the logical purpose received of small, big gold sand can be realized completely using the technical scheme in following examples.For example, for collection gold sand, first take it is small after to take be the present invention greatly the problem of deliberately solve；The ore pulp that will be entered by flat board hopper after grid do dilatation processing, and flow of slurry is shared by extension mode, that is, expand flow of slurry width, so as to slow down flow rate of pulp, have goldc grains and extraordinary retain condition；If from staying in terms of small step, flat board hopper is equivalent to first order chute, because the gap for being not more than 3 millimeters between the stupefied bar of grid causes the gold sand of fine particle to stay on the sufficiently large flat board groove of area；Before in after three sections of inclined-plane grid equivalent to second level chute, in being less than more than 3 millimeters before 20 millimeters of gold sand has been stayed in after on three sections of inclined-plane grid；The structure slipped with two-stage is effectively equivalent to, bulky grain goldc grains flow to material-dividing groove with the ore pulp anxious compared with flow velocity, because the gap for being not more than 3 millimeters between the stupefied bar of grid causes the gold sand of fine particle to stay on the sufficiently large flat board groove of area；After in being less than more than 3 millimeters before 20 millimeters of gold sand has been stayed on three sections of inclined-plane grid, simultaneously, due to multiple row, the design of multiple rows of bleeder so that flow to the trickleer goldc grains that each layer rises as high as the banks respectively from bleeder and all stay on the golden felt of the golden felt bed of each layer, realize first take it is small after take it is big
The present embodiment is related to a kind of capacity-increasing type classification savings and slipped, so-called increase-volume refers to expand the width that ore pulp flows through face on the premise of flow rate of pulp is slowed down, so-called classification refers to share the ore pulp containing gold sand in the multistage, chute of multilayer as much as possible, and the area that ore pulp is flowed through in chute further spreads.
Referring to accompanying drawing 1 to accompanying drawing 5, specifically, it is by being constituted with parts such as hopper 1, the support channel-section steel 2 for being arranged on hopper bottom, the perpendicular support 3 of hopper, infiltration pond 5, filters 4 that the capacity-increasing type classification savings in this example, which is slipped,.Wherein, overall suitable operation state is slipped in order to adjust savings, elevating mechanism 301 is provided with the perpendicular support 3 of hopper；In practice, the need for mining environment, elevating mechanism can select the structure type or base and the structure type of keyhole positioned-lifting device of base 302 and hydraulic pressure lifting device 303, however, which kind of structure type, lifter in this example all should be met both can simultaneously adjust to the bilateral that classification savings is slipped, can also the unilateral working condition requirement adjusted.
Hopper in this example is made up of flat board hopper 101, material-dividing groove 104；The tail end of flat board hopper 101 therein is connected by transition platform 105 with the head end of material-dividing groove 104.At least there is provided being respectively provided with a savings on three sections of hollow frames 102, each hollow frame slips grid on the bottom land flat board 103 of the flat board hopper 101.It is actually what is constituted by grill frame 106, every stupefied bar 107 that described savings, which slips grid, in this example, in practice, and the setting quantity that savings slips grid can also be more than three sections.In this example can be the bonding jumper of reinforcing rod or similar rib strip shaped every stupefied bar.Every equivalent to one screen cloth of dense degree of stupefied bar in embodiment, when the savings that the gentle ore pulp of the force and velocity of a current flows through each section slips grid, because the gap every stupefied bar 107 to each other is set as cannot be greater than 3 millimeters, the gold sand less than 3 millimeters enters golden felt bed by guiding device point water with water and is deposited on golden felt.
Material-dividing groove 104 in this example, by transition platform 105, transition platform support 108, it is preceding in after three sections of grids 109 constitute, wherein, transition platform 105 is arranged on transition bench support 108, and transition bench support 108 is arranged between flat board hopper 101 and material-dividing groove 104.For the consideration of water conservancy diversion, transition platform 105 can be adjusted to the state of certain gradient in advance when setting classification savings to slip.Three sections of putting in order for grid are leading portion grid, stage casing grid, back segment grid after in before being arranged in this example on material-dividing groove 104, and the quantity of grid can also sequentially be set up.It is so designed that it is because when flowing through the ore pulp every stupefied bar 107 and continuing flow to material-dividing groove 104, to be tilted the effect of water conservancy diversion by transition platform 105 and overflowed by flat board hopper 101 and be full of water and influenceed, ore pulp now and is flowed along both direction：Section grid flows before, during and after one direction is towards material-dividing groove 104, and the guiding device 8 that another direction is then towards the layering delivery port 7 of material-dividing groove 104 direction flows.Now; because there is three sections on material-dividing groove 104 each grid of inclined ramp to be also to be constituted by grill frame, every stupefied bar; and the stupefied bar arranging density of every section of grid is that leading portion is more than stage casing, middle-end more than latter end; so, flowing to the larger-diameter goldc grains that the ore pulp in material-dividing groove mixes inside it can be remained on leading portion grid, stage casing grid and back segment grid respectively.And flow to the ore pulp in layering delivery port direction then by be located at the guiding device 8 of layering delivery port 7 be transported to the lower section of multilayer bleeder 71 on the goldc grains retracting device that golden felt bed 6, golden felt 61 are constituted.Now, because dividing for guiding device 8 leads effect, all fine particles gold sands that the ore pulp being assigned in the golden felt bed of each layer is stayed in after infiltration on golden felt 61 all can be received nothing left to the greatest extent.
Above example discloses the substantive distinguishing features of the present invention：By the General layout Plan of the present invention, the flow of gold sand is received to the greatest extent can be divided into two stages.The implementation steps of first stage are that ore pulp is acted on by the delay of flat board hopper 101, and according to the structure of flat board hopper, flow rate of pulp is reduced paragraph by paragraph, but relative ore pulp porch ore pulp flows through the area on flat board groove while extending；On the premise of the slow area of flow velocity is big, the gap between stupefied bar of grid is slipped due to having designed savings, grid is now flowed through（Equivalent to screen）Most of particulate gold sand in ore pulp will all remain in savings and slip；Simultaneously as the continuity for dividing water guide functions, in terms of continuing to collect fine particles gold sand being also this stage of guiding device, the effect of this continuation phase is still further to extend fluvial processes, flowing water is soaked to unrestrained area extension.For example, the ore pulp for flowing to layering delivery port from flat board hopper is further shunted by guiding device, at least there is the width of three layers, every layer delivery port not only but also less than the bedside of corresponding golden felt bed i.e. by the delivery port 72 of at least two rows bleeder arranged side by side, each column.Now, the water that water is flowed into same flow velocity to the corresponding golden felt bed of each delivery port is also the same.That is, the golden felt the being layering bed 6 that the water of shunting enters, and the area of each golden felt bed is equally big, so flowing into the water water of golden felt bed as many, this retains the scope of operation of gold sand equivalent to golden felt bed 6 has been expanded as far as possible；So far, flow velocity, the flow for flowing into the golden felt bed water of each layer are impartial, so solving the problem of fluvial processes extends, the unrestrained area of flowing water leaching expands, particulate gold sand is received to the greatest extent at once.
The described scope of operation comes out by actuarial and practice summary in this example：Relatively common single chute 24m2 working area, capacity-increasing type classification savings of the present invention is slipped, the developed area therein for folding golden felt bed can be the m2 of 3 × 24m2=72, or the m2 of 6 × 24m2=144, or the m2 of 9 × 24m2=216, or 12 × 24m2=288m2, what the multiplier in each formula was represented is the number of golden felt bed.In addition, received to the greatest extent in view of gold sand, seep water convenient actual requirement, uniformly the head of a bed for folding golden felt bed can be set by it towards one end of bleeder higher than the tailstock other end, make bed body that there is certain angle of inclination using pond of seeping water as object of reference when golden felt bed is set.
The implementation steps of second stage are that the collection that bulky grain gold sand is realized by material-dividing groove is acted：Just as previously described, it is to be let out by transition platform under each section of grid of material-dividing groove to flow through material-dividing groove ore pulp, because each section of grid all has certain inclination angle, the setting quantity of grid can also be more than three sections, under the big grain gold sand and slag let out in ore pulp can all take advantage of a situation and under.Because the density of every section of grid stupefied bar arrangement is to be more than stage casing, stage casing according to leading portion and be more than the general layout of latter end to arrange, so the big grain gold sand that each grid is retained in the case that the flow rate of pulp let out under is constant can be because each particle diameter is different and stays on the different grid of stupefied rod density with slag；Even if under let out ore pulp and the phenomenon sprung up occur, also due to the difference of stupefied rod density makes current natural layering on each section of grid, equally small clear water can be stayed to stay big principle to keep here every the particle gold sand on stupefied bar according to muddy water, that is, complete this stage the goldc grains and slag of " big " by while the purpose reclaimed.
Claims (8)
1. a kind of capacity-increasing type classification savings is slipped, with hopper, hopper bottom support channel-section steel, the perpendicular support of hopper, infiltration pond, filter, it is characterized in that, it is provided with the elevating mechanism with lifting pedestal, lifter in the perpendicular support of described hopper；Transition platform support of the described hopper by flat board hopper, with transition platform, it is preceding in after the material-dividing grooves of three sections of grids constitute, the tail end of flat board hopper is connected by transition platform with the head end of material-dividing groove；At least provided with three sections of hollow frames on the bottom land flat board of the flat board hopper, one is respectively provided with each hollow frame and slips grid with grill frame, every the savings of stupefied bar；One group of grid at least being constituted by three sections and with inclined ramp is connected in the tail end of the transition platform；A guiding device being connected simultaneously with the sub-material front of the slot is connected in the lower section of the flat board hopper tail end；Described guiding device has an at least three shunting outlets, and described three shuntings outlet respectively with least three layers and be connected in the goldc grains retracting device being arranged above and below；Provided with golden felt in described goldc grains retracting device.
2. capacity-increasing type classification savings according to claim 1 is slipped, it is characterized in that, the lifter in described material elevating mechanism is hydraulic pressure lifting device or keyhole positioned-lifting device.
3. capacity-increasing type according to claim 1 classification savings is slipped, it is characterized in that, described savings is slipped grid and constituted by grill frame, every stupefied bar, wherein, described can be that gap between reinforcing rod, every reinforcing rod is not more than 3 millimeters every stupefied bar.
4. capacity-increasing type classification savings according to claim 1 is slipped, it is characterized in that, described goldc grains retracting device is laminated the golden felt fallen bed, golden felt by least three and constituted.
5. capacity-increasing type classification savings according to claim 1 is slipped, it is characterized in that, described guiding device is made up of at least two rows bleeder arranged side by side, at least three layers of the bleeder of each column, and the width of every layer of delivery port is less than the width of corresponding golden felt bed.
6. capacity-increasing type classification savings according to claim 1 is slipped, it is characterized in that, the described grid with inclined ramp, its every section grid is constituted by grill frame, every stupefied bar, wherein, the gap between every stupefied bar in the grid is not more than 20 millimeters.
7. the capacity-increasing type classification savings according to claim 4 or 5 is slipped, it is characterized in that, described golden felt bed, it is highly more than the height of tailstock towards the head of a bed of one end of bleeder.
8. capacity-increasing type classification savings according to claim 6 is slipped, it is characterized in that, the described grid with inclined ramp, the density of every section of grid deck bar arrangement therein is to be more than stage casing, stage casing more than latter end to set by leading portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071827.0A CN107020197B (en) | 2016-02-02 | 2016-02-02 | Capacity-increasing type classification savings is slipped |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071827.0A CN107020197B (en) | 2016-02-02 | 2016-02-02 | Capacity-increasing type classification savings is slipped |
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| Publication Number | Publication Date |
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| CN107020197A true CN107020197A (en) | 2017-08-08 |
| CN107020197B CN107020197B (en) | 2019-05-07 |
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| CN201610071827.0A Expired - Fee Related CN107020197B (en) | 2016-02-02 | 2016-02-02 | Capacity-increasing type classification savings is slipped |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1448995A (en) * | 1922-01-19 | 1923-03-20 | Dee John | Gold separator |
| US2256504A (en) * | 1938-05-23 | 1941-09-23 | Frank P Stewart | Gold concentrator |
| CN87210614U (en) * | 1987-10-06 | 1988-05-25 | 本溪市塑胶厂 | Gold dressing saddle |
| CN2175647Y (en) * | 1993-12-30 | 1994-08-31 | 黑龙江省地质矿产局第三地质勘查所机械修配厂 | Combined placer ore dressing chute |
| CN2193205Y (en) * | 1993-11-03 | 1995-03-29 | 苏亚杰 | Sluice ore dressing unit |
| RU2149197C1 (en) * | 1998-10-19 | 2000-05-20 | Геологический институт Сибирского отделения РАН | Method of concentrating gold-containing sands and washer with nugget catcher for method embodiment |
| US20110186486A1 (en) * | 2010-02-01 | 2011-08-04 | Larry Allen Alderson | Removable support legs for use with gold prospecting sluice |
| CN202316094U (en) * | 2011-11-26 | 2012-07-11 | 昆明钢铁集团有限责任公司 | Gold concentration chute |
| CN204564311U (en) * | 2015-02-11 | 2015-08-19 | 程名亭 | Combined type panning chute |
| US20160023219A1 (en) * | 2014-07-25 | 2016-01-28 | Siya, Inc. | Sluice Box |
-
2016
- 2016-02-02 CN CN201610071827.0A patent/CN107020197B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1448995A (en) * | 1922-01-19 | 1923-03-20 | Dee John | Gold separator |
| US2256504A (en) * | 1938-05-23 | 1941-09-23 | Frank P Stewart | Gold concentrator |
| CN87210614U (en) * | 1987-10-06 | 1988-05-25 | 本溪市塑胶厂 | Gold dressing saddle |
| CN2193205Y (en) * | 1993-11-03 | 1995-03-29 | 苏亚杰 | Sluice ore dressing unit |
| CN2175647Y (en) * | 1993-12-30 | 1994-08-31 | 黑龙江省地质矿产局第三地质勘查所机械修配厂 | Combined placer ore dressing chute |
| RU2149197C1 (en) * | 1998-10-19 | 2000-05-20 | Геологический институт Сибирского отделения РАН | Method of concentrating gold-containing sands and washer with nugget catcher for method embodiment |
| US20110186486A1 (en) * | 2010-02-01 | 2011-08-04 | Larry Allen Alderson | Removable support legs for use with gold prospecting sluice |
| CN202316094U (en) * | 2011-11-26 | 2012-07-11 | 昆明钢铁集团有限责任公司 | Gold concentration chute |
| US20160023219A1 (en) * | 2014-07-25 | 2016-01-28 | Siya, Inc. | Sluice Box |
| CN204564311U (en) * | 2015-02-11 | 2015-08-19 | 程名亭 | Combined type panning chute |
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| CN107020197B (en) | 2019-05-07 |
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