CN104368434B - Sand washer with fine sand recycling and rewashing functions and implementation method thereof - Google Patents
Sand washer with fine sand recycling and rewashing functions and implementation method thereof Download PDFInfo
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- CN104368434B CN104368434B CN201410205141.7A CN201410205141A CN104368434B CN 104368434 B CN104368434 B CN 104368434B CN 201410205141 A CN201410205141 A CN 201410205141A CN 104368434 B CN104368434 B CN 104368434B
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- sand
- hydrocyclone
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- riffler
- bucket wheel
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- 239000004576 sand Substances 0.000 title claims abstract description 127
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004064 recycling Methods 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 92
- 239000010865 sewage Substances 0.000 claims abstract description 35
- 238000011084 recovery Methods 0.000 claims abstract description 18
- 238000005183 dynamical system Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B11/00—Feed or discharge devices integral with washing or wet-separating equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
-
- 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
- B03B11/00—Feed or discharge devices integral with washing or wet-separating equipment
- B03B2011/004—Lifting wheel dischargers
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention discloses a sand washer with a fine sand recovery and rewashing function and an implementation method thereof.A water collecting tank is communicated and arranged at a water outlet of the sand washer, a water diversion tank separated from the water collecting tank is arranged at the upper part of the water collecting tank, a communication port communicated with the water collecting tank is arranged at the bottom of the water diversion tank, a diversion valve is arranged in the communication port, a clear water outlet is arranged on the upper side wall of the water diversion tank, a hydrocyclone is erected at the position close to the upper part of the outer side wall of the water diversion tank, a sewage pump is arranged at the bottom of the water collecting tank, the sewage pump is connected with a water inlet of the hydrocyclone through a guide pipe, a clear water outlet of the hydrocyclone is introduced into the top of the water diversion tank through a guide pipe, and a concentrated solution outlet. The invention adds a fine sand recovery system on the basis of the sand washer, can effectively improve the gradation of the finished sand, increase the yield, greatly reduce the content of particulate matters in the discharged sewage and reduce the pollution pressure to the environment.
Description
Technical field
The present invention relates to sand washer technical field, a kind of sand washer and its implementation washing function with fine sand recovery again.
Background technology
Sand washer is by the method for gravity floatation, the mud powder (granules less than 75 microns) being contained in sand to be rinsed away with water, delivers to the machinery of defined location after sand being fished for out and being effectively dehydrated.
The most common sand washer has bucket wheel formula, carrier bar bucket type, spiral etc..If Fig. 1 and Fig. 2 is a bucket wheel formula sand washer described in patent 201320597916.0 is worked as, mainly it is made up of riffler 1, dynamical system 2, bucket wheel 3, discharge outlet 4.Its ultimate principle is the front portion that sand after screening pours sand washer riffler 1 with substantial amounts of water, and the rear portion of riffler 1 has discharge outlet 4, sand is posteriorly moved by front portion under the drive of current in riffler 1, the bottom of riffler 1 is sunk under gravity at this process medium sand, and the tiny mud powder being contained in sand rinses away from discharge outlet 4 under the drive of current, dynamical system 2 drives bucket wheel 3 slowly to rotate by direction as shown, the sand sunk to bottom riffler 1 is picked up, the bottom of bucket wheel 3 is that screen cloth with holes can effectively filter out the water in the sand picked up, after 3 deslimings of bucket wheel and filter the finished sand of water and be discharged at the outside (typically being connect away by conveyer belt) of riffler 1 afterbody.
Owing to, in washing husky production, sand material clay content heterogeneity and the accurate servo antrol of water consumption are difficult, therefore while washing off less than less than 75 microns mud powder, understand some fine sand and also discharged from discharge outlet 4 and run off.The flow process of riffler 1 is short, discharge big, and the fine sand amount of discharge will be many.The loss of fine sand can make the modulus of fineness of finished sand thicker, and grating is deteriorated, and makes the particle content discharging water body increase simultaneously and forms deposition and pollute.
Summary of the invention
It is an object of the invention to the fine sand solved from sand washer discharge outlet is discharged and can not reclaim the technical problem washed again, a kind of structural manufacturing process of offer is simple, manufacture supporting convenience, the grating of finished sand can be effectively improved, increase yield, greatly reducing again particle content in the sewage of discharge, decrease environmental pollution pressure reclaims sand washer and its implementation washing function again with fine sand.
nullIn order to reach object above，The present invention is achieved by the following technical solutions: a kind of sand washer washing function with fine sand recovery again，Including sand washer，It is characterized in that，The outlet of described sand washer is provided with and communicated with a water leg，The top of described water leg is provided with one and is separated by the bypass channel left with it，The bottom of described bypass channel is provided with the connected entrance of a described water leg of connection，Described connected entrance is provided with a flow divider，A clear water discharge outlet it is provided with on the upper side wall of described bypass channel，The lateral wall of described bypass channel has set up a hydrocyclone by the upper position，The bottom of described water leg is provided with a sewage pump，Described sewage pump is connected with the water inlet of described hydrocyclone by conduit，The Graceful mouth of a river of described hydrocyclone is passed through the top of described bypass channel by conduit，The concentrated solution outlet of described hydrocyclone is passed through the charging aperture of described sand washer by conduit.
The present invention designs increase fine sand recovery system composition on the basis of bucket wheel sand washer and has the sand washer of fine sand recovery function, can effectively reclaim the fine sand more than 100 microns (about response rate 80-90%) and both improve the grating of finished sand, add yield, greatly reduce again particle content in the sewage of discharge, decrease the pollution pressure to environment, achieve many things at one stroke.
As preferably, described hydrocyclone includes an eddy flow housing, have one in described eddy flow housing and docked, by cylindrical section inner chamber and conical section inner chamber, the disengagement chamber constituted one on the other, the water inlet of described hydrocyclone is arranged on the side of described cylindrical section inner chamber and tangent with sidewall, the Graceful mouth of a river of described hydrocyclone is arranged at the top of described cylindrical section inner chamber, and the concentrated solution outlet of described hydrocyclone is arranged at the bottom of described conical section inner chamber.
The core component of hydrocyclone is conical section inner chamber, whole cyclone is made by steel plate or other high-abrasive material, need sewage to be processed under water-aspirator pressure effect, send into hydrocyclone from tangential direction with (recommendation 5-12 meter per second) at a high speed, enter the sewage of hydrocyclone along wall generation high speed rotating.Under centrifugal action, solid particle is thrown to eddy flow wall, and by frictional force, the gravity of self and the acting on of current of eddy flow wall, solid particle drops at the dope slag-drip opening of conical lower portion with eddy flow and thus discharges.Owing to sewage makees high speed rotating along wall, current cyclone is centrally formed low pressure, and the clear liquid after process forms spiral secondary spiral stream upwards in the axle center of cyclone, and is discharged by the clear liquid outlet of cyclone central upper portion, clear liquid outlet should be through with air, prevents siphon.
As preferably, sand washer is bucket wheel formula sand washer, and its structure is made up of riffler, dynamical system, bucket wheel, charging aperture and discharge outlet, and wherein the bottom of bucket wheel is screen cloth with holes.
Certainly sand washer can also select carrier bar bucket type and spiral two kinds, but from structure, the structure of modification of bucket wheel formula is more prone to.
As preferably, water leg and riffler are integral type attachment structure.
Make fine sand reclaim wash that system is combined with sand washer again the closest, be preferably convenient to be managed collectively.
A kind of implementation method washed again based on the recovery of above-mentioned sand washer fine sand, comprises the following steps:
(1) sand after screening pours, with substantial amounts of water, the charging aperture that sand washer riffler is anterior, sand is posteriorly moved by front portion under the drive of current in riffler, the bottom of riffler is sunk under gravity at this process medium sand, and be contained in mud powder tiny in sand and rinse away entrance water leg from discharge outlet under the drive of current, dynamical system drives bucket wheel slowly to rotate, the sand sunk to bottom riffler is picked up, the bottom of bucket wheel is that screen cloth with holes can effectively filter out the water in the sand picked up, bucket wheel is after desliming and filter the finished sand of water and be discharged at the outside of riffler afterbody and connect away by conveyer belt；
null(2) sewage after rinsing can carry some fine sand to be expelled to water leg from discharge outlet simultaneously，These sewage send into hydrocyclone through sewage pump with higher flow velocity，Sewage makees quick screw in hydrocyclone，Fine sand grain under centrifugal action with hydrocyclone contact internal walls，And by the frictional resistance effect of hydrocyclone inwall，It is settled down to the hydrocyclone cone end along hydrocyclone spiral inner wall，And it is expelled to, together with the fraction of water concentrated solution outlet from the hydrocyclone cone end, the charging aperture that riffler is anterior，These fine sands are picked up by bucket wheel together with other finished sand becomes a part for finished sand，Equally it is discharged at the outside of riffler afterbody by bucket wheel to be connect away by conveyer belt，The clear water separating fine sand grain in hydrocyclone is then discharged into bypass channel from the Graceful mouth of a river, top of hydrocyclone，The clear water of its small portion is back to water leg through flow divider regulation，Fine sand recovery system circulates again，Remaining clear water after hydrocyclone processes is discharged from clear water discharge outlet.
As preferably, in step 2, sewage sends into hydrocyclone, this flow velocity preferred 5-12 meter per second through sewage pump with higher flow velocity.
Beneficial effect: (1) present configuration is simple, sewage pump, hydrocyclone all have the product of standard for selection, features simple and practical process, make supporting convenience.
(2) sand washer and fine sand reclaim and wash system in combination more conveniently, and sand washer not only can be used alone but also use be can be combined, and especially existing sand washer can be carried out upgrading very easily.
(3) sand washer and fine sand reclaim and wash system next-door neighbour's layout, compact conformation again, take up an area little.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art routine sand washer；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the structural representation of sand washer after the present invention reequips；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the left view of Fig. 3；
Fig. 6 is the structure sectional view of A-A in Fig. 4；
Fig. 7 is the structural representation of hydrocyclone of the present invention.
In figure: 1-riffler, 2-dynamical system, 3-bucket wheel, 4-discharge outlet, 5-hydrocyclone, 6-clear water discharge outlet, 7-bypass channel, 8-flow divider, 9-sewage pump, 10-water leg, 51-water inlet, the 52-Graceful mouth of a river, 53-concentrated solution outlet.
Detailed description of the invention
Understand with reaching purpose and being readily apparent to make the technological means of the present invention, creation characteristic, the present invention is expanded on further below in conjunction with specific embodiment.
Embodiment: as shown in Figure 3 and Figure 4, it is the bucket wheel sand washer with fine sand recovery function of a φ 2600 × 800, comprises riffler 1, dynamical system 2, bucket wheel 3, discharge outlet 4, hydrocyclone 5, clear water discharge outlet 6, bypass channel 7, flow divider 8, sewage pump 9, water leg 10 and conduit lines etc. including one.Riffler 1, dynamical system 2, bucket wheel 3, discharge outlet 4 constitute bucket wheel formula sand washer, and hydrocyclone 5, clear water discharge outlet 6, bypass channel 7, flow divider 8, sewage pump 9, water leg 10 and conduit lines etc. form fine sand recovery system.Fine sand recovery system for integral type attachment structure thus is connected with bucket wheel sand washer with riffler 1 by water leg 10.
As shown in Figure 7, hydrocyclone 5 includes an eddy flow housing, have one in eddy flow housing and docked, by cylindrical section inner chamber and conical section inner chamber, the disengagement chamber constituted one on the other, the water inlet 51 of hydrocyclone 5 is arranged on the side of cylindrical section inner chamber and tangent with sidewall, the Graceful mouth of a river 52 of hydrocyclone 5 is arranged at the top of cylindrical section inner chamber, and the concentrated solution outlet 53 of hydrocyclone 5 is arranged at the bottom of conical section inner chamber.
nullAs shown in Figure 5 and Figure 6，Bypass channel 7 frame is arranged on water leg 10 top，Kept apart by the dividing plate bottom bypass channel 7 between the two，Clear water discharge outlet 6 is arranged at bypass channel 7 top，Flow divider 8 is arranged in the connected entrance bottom bypass channel 7，Water leg 10 is led in connected entrance outlet，Sewage pump 9 is placed in bottom water leg 10，Hydrocyclone 5 frame is hung on bypass channel 7 side surface upper part，The bottom concentrated solution discharge outlet 53 of hydrocyclone 5 is higher than riffler 1，And be connected to the charging aperture of riffler 1 by conduit and make its concentrated solution can certainly flow to riffler 1，The outlet conduit of sewage pump 9 is connected with the water inlet 51 of hydrocyclone 5，The Graceful mouth of a river 52 of hydrocyclone 5 conduit is passed through bypass channel 7 top，Discharge outlet 4 is placed in the rear side of riffler 1，The draining of discharge outlet 4 just caught by water leg 10，Bucket wheel 3 is arranged on riffler 1 and is driven its rotary work by dynamical system 2，Dynamical system 2 is by driving motor、Change speed gear box and gear-box collectively constitute.Wherein the bottom of bucket wheel 3 is screen cloth with holes.
Wherein bypass channel 7 is placed in water leg 10 above so that returning clear water.Flow divider 8 is placed in bottom bypass channel 7 so that returning clear water.Clear water discharge outlet is placed in bypass channel 7 first half so that returning clear water and clearing water.
Fine sand reclaims washes implementation method again: (1) sand after screening pours, with substantial amounts of water, the charging aperture that sand washer riffler is anterior, sand is posteriorly moved by front portion under the drive of current in riffler, the bottom of riffler is sunk under gravity at this process medium sand, and be contained in mud powder tiny in sand and rinse away entrance water leg from discharge outlet under the drive of current, dynamical system drives bucket wheel slowly to rotate, the sand sunk to bottom riffler is picked up, the bottom of bucket wheel is that screen cloth with holes can effectively filter out the water in the sand picked up, bucket wheel is after desliming and filter the finished sand of water and be discharged at the outside of riffler afterbody and connect away by conveyer belt；
null(2) sewage after rinsing can carry some fine sand to be expelled to water leg from discharge outlet simultaneously，These sewage send into hydrocyclone through sewage pump with higher flow velocity (recommending 5-12 meter per second)，Sewage makees quick screw in hydrocyclone，Fine sand grain under centrifugal action with hydrocyclone contact internal walls，And by the frictional resistance effect of hydrocyclone inwall，It is settled down to the hydrocyclone cone end along hydrocyclone spiral inner wall，And it is expelled to, together with the fraction of water concentrated solution outlet from the hydrocyclone cone end, the charging aperture that riffler is anterior，These fine sands are picked up by bucket wheel together with other finished sand becomes a part for finished sand，Equally it is discharged at the outside of riffler afterbody by bucket wheel to be connect away by conveyer belt，The clear water separating fine sand grain in hydrocyclone is then discharged into bypass channel from the Graceful mouth of a river, top of hydrocyclone，The clear water of its small portion is back to water leg through flow divider regulation，Fine sand recovery system circulates again (because the disposal ability of hydrocyclone being generally selected and the flow of sewage pump all should be greater than the maximum sewage drainage amount of sand washer，It is emptied for preventing sewage pump so the treated clear water of part need to be back to water leg)，Remaining clear water after hydrocyclone processes is discharged from clear water discharge outlet.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; the principle that the present invention is simply described described in above-described embodiment and description; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements both fall within scope of the claimed invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (5)
1. the sand washer washing function with fine sand recovery again, including sand washer, it is characterized in that, the outlet of described sand washer is provided with and communicated with a water leg, the top of described water leg is provided with one and is separated by the bypass channel left with it, the bottom of described bypass channel is provided with the connected entrance of a described water leg of connection, described connected entrance is provided with a flow divider, a clear water discharge outlet it is provided with on the upper side wall of described bypass channel, the lateral wall of described bypass channel has set up a hydrocyclone by the upper position, the bottom of described water leg is provided with a sewage pump, described sewage pump is connected with the water inlet of described hydrocyclone by conduit, the Graceful mouth of a river of described hydrocyclone is passed through the top of described bypass channel by conduit, the concentrated solution outlet of described hydrocyclone is passed through the charging aperture of described sand washer by conduit.
The sand washer washing function with fine sand recovery more according to claim 1, it is characterized in that, described hydrocyclone includes an eddy flow housing, have one in described eddy flow housing and docked, by cylindrical section inner chamber and conical section inner chamber, the disengagement chamber constituted one on the other, the water inlet of described hydrocyclone is arranged on the side of described cylindrical section inner chamber and tangent with sidewall, the Graceful mouth of a river of described hydrocyclone is arranged at the top of described cylindrical section inner chamber, and the concentrated solution outlet of described hydrocyclone is arranged at the bottom of described conical section inner chamber.
The sand washer washing function with fine sand recovery more according to claim 1 and 2, it is characterized in that, sand washer is bucket wheel formula sand washer, and its structure is made up of riffler, dynamical system, bucket wheel, charging aperture and discharge outlet, and wherein the bottom of bucket wheel is screen cloth with holes.
The sand washer washing function with fine sand recovery more according to claim 3, it is characterised in that water leg and riffler are integral type attachment structure.
5. reclaim the implementation method washed again based on sand washer fine sand described in the claims 4, comprise the following steps:
(1) sand after screening pours, with substantial amounts of water, the charging aperture that sand washer riffler is anterior, sand is posteriorly moved by front portion under the drive of current in riffler, the bottom of riffler is sunk under gravity at this process medium sand, and be contained in mud powder tiny in sand and rinse away entrance water leg from discharge outlet under the drive of current, dynamical system drives bucket wheel slowly to rotate, the sand sunk to bottom riffler is picked up, the bottom of bucket wheel is that screen cloth with holes can effectively filter out the water in the sand picked up, bucket wheel is after desliming and filter the finished sand of water and be discharged at the outside of riffler afterbody and connect away by conveyer belt；
null(2) sewage after rinsing can carry some fine sand to be expelled to water leg from discharge outlet simultaneously，These sewage send into hydrocyclone through sewage pump with the flow velocity of 5-12 meter per second，Sewage makees quick screw in hydrocyclone，Fine sand grain under centrifugal action with hydrocyclone contact internal walls，And by the frictional resistance effect of hydrocyclone inwall，It is settled down to the hydrocyclone cone end along hydrocyclone spiral inner wall，And it is expelled to, together with the fraction of water concentrated solution outlet from the hydrocyclone cone end, the charging aperture that riffler is anterior，These fine sands are picked up by bucket wheel together with other finished sand becomes a part for finished sand，Equally it is discharged at the outside of riffler afterbody by bucket wheel to be connect away by conveyer belt，The clear water separating fine sand grain in hydrocyclone is then discharged into bypass channel from the Graceful mouth of a river, top of hydrocyclone，The clear water of its small portion is back to water leg through flow divider regulation，Fine sand recovery system circulates again，Remaining clear water after hydrocyclone processes is discharged from clear water discharge outlet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410205141.7A CN104368434B (en) | 2014-05-15 | 2014-05-15 | Sand washer with fine sand recycling and rewashing functions and implementation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410205141.7A CN104368434B (en) | 2014-05-15 | 2014-05-15 | Sand washer with fine sand recycling and rewashing functions and implementation method thereof |
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| CN104368434B true CN104368434B (en) | 2017-01-04 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106140452A (en) * | 2015-04-14 | 2016-11-23 | 新疆科立机械设备有限公司 | A kind of vibration type fine sand collects machine |
| CN106139732A (en) * | 2015-04-14 | 2016-11-23 | 新疆科立机械设备有限公司 | A kind of sand settling type sand water collection tank automatically |
| CN106925443A (en) * | 2017-03-20 | 2017-07-07 | 四川大学 | Double helix water and sand separating device |
| CN109092554B (en) * | 2018-06-12 | 2020-06-19 | 张日养 | Cross-flow type sand-mud washing and separating method and device |
| EP4028170A2 (en) * | 2019-06-21 | 2022-07-20 | Librixer AB | Librixer comminutor and particle air classifier system |
| CN112374653A (en) * | 2020-11-19 | 2021-02-19 | 中国水利水电第九工程局有限公司 | Hydraulic classification separation and fine sand recovery method for treating wastewater from sandstone production |
| CN112916198A (en) * | 2021-01-29 | 2021-06-08 | 中国水利水电第九工程局有限公司 | Wet screening sand making system and method under strong wind condition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191204527A (en) * | 1912-02-22 | 1912-07-18 | Heinrich Kueckenhoener | New or Improved Washing Machine for Sand, Gravel or the like. |
| JPH07232198A (en) * | 1994-02-24 | 1995-09-05 | Tokyo Met Gov Gesuido Service Kk | Method for separating and cleaning solid in sludge and device therefor |
| KR20020096274A (en) * | 2001-06-19 | 2002-12-31 | 산양환경산업 주식회사 | The System of for the using Recycled of Dredged Soils |
| CN202162066U (en) * | 2011-07-01 | 2012-03-14 | 曲明伟 | Mountain sand washing machine |
| CN203484221U (en) * | 2013-09-26 | 2014-03-19 | 汤奇岳 | Sand washing system |
-
2014
- 2014-05-15 CN CN201410205141.7A patent/CN104368434B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191204527A (en) * | 1912-02-22 | 1912-07-18 | Heinrich Kueckenhoener | New or Improved Washing Machine for Sand, Gravel or the like. |
| JPH07232198A (en) * | 1994-02-24 | 1995-09-05 | Tokyo Met Gov Gesuido Service Kk | Method for separating and cleaning solid in sludge and device therefor |
| KR20020096274A (en) * | 2001-06-19 | 2002-12-31 | 산양환경산업 주식회사 | The System of for the using Recycled of Dredged Soils |
| CN202162066U (en) * | 2011-07-01 | 2012-03-14 | 曲明伟 | Mountain sand washing machine |
| CN203484221U (en) * | 2013-09-26 | 2014-03-19 | 汤奇岳 | Sand washing system |
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| CN104368434A (en) | 2015-02-25 |
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