CN1033008C - sedimentation centrifuge - Google Patents
sedimentation centrifuge Download PDFInfo
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- CN1033008C CN1033008C CN 91108894 CN91108894A CN1033008C CN 1033008 C CN1033008 C CN 1033008C CN 91108894 CN91108894 CN 91108894 CN 91108894 A CN91108894 A CN 91108894A CN 1033008 C CN1033008 C CN 1033008C
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- rotary drum
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- sedimentation
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- 238000004062 sedimentation Methods 0.000 title description 26
- 239000007788 liquid Substances 0.000 claims abstract description 63
- 239000007787 solid Substances 0.000 claims abstract description 59
- 239000000203 mixture Substances 0.000 claims abstract description 57
- 239000012530 fluid Substances 0.000 claims description 34
- 238000007599 discharging Methods 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 27
- 238000000926 separation method Methods 0.000 abstract description 9
- 230000000052 comparative effect Effects 0.000 description 14
- 235000019198 oils Nutrition 0.000 description 13
- 239000012071 phase Substances 0.000 description 13
- 239000013049 sediment Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000012141 concentrate Substances 0.000 description 7
- 238000001035 drying Methods 0.000 description 6
- 235000021323 fish oil Nutrition 0.000 description 6
- 238000005191 phase separation Methods 0.000 description 6
- 102000004169 proteins and genes Human genes 0.000 description 6
- 108090000623 proteins and genes Proteins 0.000 description 6
- 239000007791 liquid phase Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 239000007790 solid phase Substances 0.000 description 3
- 235000019733 Fish meal Nutrition 0.000 description 2
- 241001125048 Sardina Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000004467 fishmeal Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 235000019512 sardine Nutrition 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
A decanter centrifuge comprises a bowl, a feed mixture, i.e. a solid-liquid mixture, fed into the bowl by a feed pipe. When the drum rotates at high speed, the heavy solids move radially outward and settle on the inner wall surface of the drum. The solid particles are discharged from a screw conveyor arranged in the rotary drum through a discharge opening and a discharge channel of the rotary drum. The fins disposed on the screw conveyor promote the separation of the liquid into heavy and light liquids with a greater separation efficiency during the rotation of the bowl. The separated heavy liquid and light liquid are respectively discharged from the rotary drum through corresponding discharge channels. The fins are parallel to the conveyor blades and are straight from their radially innermost edge to their radially outermost edge.
Description
The present invention relates to a kind of sedimentation-type centrifuge that solid particle and mixtures of liquids is separated into solid phase and liquid phase, particularly relate to a kind ofly with solid particle and two kinds of liquid phases, promptly the mixture of heavy-fluid and light liquid is separated into the sedimentation-type centrifuge of solid particle, heavy-fluid and light liquid.
Up to now, centrifuge or cyclone are used to solid particle and mixtures of liquids are separated into solid phase and liquid phase, and perhaps the mixture with solid particle and heavy-fluid, light liquid is separated into solid particle, heavy-fluid and light liquid.
The dish formula sedimentation type centrifuge (also claiming taper disc-type sedimentation type centrifuge) that is generally used for centrifugal sedimentation has the video disc of the frustoconical of some intervals one determining deviation configuration.Yet, when separating a kind of ground material thin pulp of the solid liquid mixture with big solid content with a kind of dish formula sedimentation type centrifuge, the solid particle that gathers in the mixture is easy to stop up the gap between the video disc, makes the normal running of this dish formula sedimentation type centrifuge produce fault.In order to prevent the generation of this class problem, need to reduce the content of solid particle in the mixture, for example, then, utilize a dish formula sedimentation type centrifuge that this mixture is separated into solid phase and liquid phase by a spiral sedimentation centrifuge.Yet this practice needs the sedimentation-type centrifuge that is connected in series each other of two costlinesses.In addition, because this mixture must directly go through the centrifugal treating of the last twice, can be more relatively so sedimentation-type centrifuge consumed, be uneconomic.
The present inventor is in Japan 1,007, No. 732 patents (Japan Patent discloses No. 054961/75) and Japan Patent disclose and disclose a kind of sedimentation-type centrifuge that is used for solid particle and mixtures of liquids are separated into the solid-liquid two-phase for No. 152556/87, and a kind of with solid particle and two liquid phases, promptly the mixture of heavy-fluid and light liquid is separated into the sedimentation-type centrifuge of solid particle, heavy-fluid and light liquid.Disclosed sedimentation-type centrifuge can be referred to as the spiral sedimentation centrifuge of double inclined plane, and it has a butt bevel-type rotary drum that is used to discharge the solid particle of sedimentation.The inner wall surface of this rotary drum at first tilts with a bigger angle on the direction of discharging along solid particle with respect to the rotary drum center line, tilts with a less angle then.The double inclined plane inner wall surface of described rotary drum can make described solid particle move to the end of rotary drum reposefully, also can gently isolate liquid from solid particle.This drum structure can increase the inlet amount that rests in the centrifuge in the long time cycle.Therefore, the disposal ability of the separation accuracy of centrifuge and unit interval has increased.
The present inventor finds, in the practical application of described centrifuge, still there are many improvements that need said disposal ability, separation accuracy and power consumption aspect, as mentioned above more specifically, because the solid of sedimentation is easy to stop up gap between the video disc, all the more so when having big solid content in the charging especially, therefore, dish formula sedimentation type centrifuge often breaks down.This problem only can be by at first utilizing spiral sedimentation centrifuge to reduce solid content in the thin pulp, utilizes dish formula sedimentation type centrifuge to handle this thin pulp and achieve a solution then.Therefore, the sedimentation-type centrifuge of described two costlinesses or centrifuge need in series to connect mutually, owing to need to apply the centrifugal treating of the last twice in sedimentation-type centrifuge, power consumption is big.Although the spiral sedimentation centrifuge of double inclined plane by present inventor's invention only needs thin pulp once just can finish separation process by described centrifuge, but the practical application aspect of this sedimentation-type centrifuge, this sedimentation-type centrifuge do not resemble expectation than the series connection centrifuge have so much advantage, and in the application that requires to be separated accurately, disposal ability and energy consumption need further be improved.
The purpose of this invention is to provide a kind of sedimentation-type centrifuge, this centrifuge can overcome and separates the big thin pulp of solid content or mixture and cause the defective stopped up; When separating thin pulp, separation accuracy height, power consumption are low, and can only separate more relatively charging thin pulp or mixture under a single cycle centrifugal action quite reliably.
Purpose of the present invention realizes by following mode.Sedimentation-type centrifuge according to the present invention comprises:
One is elongated, hollow, rotatable, solid rotary drum, this rotary drum is suitable for admitting the mixture of liquid and solid, this rotary drum can rotate around the axis of a longitudinal extension, this rotary drum has a barrel portion, this barrel portion has first and second shaft ends, this rotary drum has each other the sloping portion of the first and second coaxial frustums of serial connection, this first sloping portion outwards stretches from the first end of this barrel portion, and this second sloping portion outwards stretches in abutting connection with this first sloping portion and from this first sloping portion, this first and second sloping portion respectively has axial awl wall, each axial awl wall launches an acute angle with respect to the rotating shaft of this rotary drum, the axial awl wall of this first sloping portion is bigger with respect to the angle of the rotating shaft expansion of rotary drum to the awl wall than the awl of second sloping portion with respect to the angle of the rotating shaft expansion of rotary drum, this rotary drum has first discharge opening of discharging for solid in the axial outer end portion of this second sloping portion, and this rotary drum has second discharge opening of discharging for liquid at the second end of this barrel portion; Rotatable, spirality auger conveyor that its length is substantially equal to the length overall of this rotary drum are rotatably installed in this rotary drum, it is characterized in that, it is the helical blade that tilts that this auger conveyor has a rotating shaft with respect to this rotary drum, and this helical blade and this barrel portion and sloping portion are suitable; This auger conveyor is installed in the barrel portion of this rotary drum at least with at least one helical fin, this helical fin and this auger blade are extended and in parallel to each other between the pitch of this auger blade, and this fin only is flat at it from radially edge to outermost edge radially.
Comprise according to sedimentation-type centrifuge of the present invention: one can be around the hollow circular cylinder of its central axis rotation; Carry a kind of solid-feed arrangement of liquid mixture to the described hollow circular cylinder; One it have the first hollow frustum section of the inner wall surface that tilts with a said relatively center line of bigger angle, this first hollow frustum section have one with the larger-diameter openend of said hollow circular cylinder one end adjacency and one with than the axial relative minor diameter openend of major diameter openend, second a hollow frustum section with the inner wall surface that tilts with a said relatively center line of smaller angle, this second hollow frustum section have one with the said first hollow frustum section than the openend of minor diameter openend adjacency and one and this openend opposing open end, this openend defines a discharge opening, the said second frustum section be positioned at such position with the first frustum section than the openend of minor diameter openend adjacency, the free surface of the cylindrical solid-liquid mixture that promptly is same as or in this cylinder, forms when being lower than the hollow circular cylinder rotation; An auger conveyor that is disposed in described hollow circular cylinder, the first hollow frustum section and the second hollow frustum section, be used for carrying the solid of the isolated sedimentation from solid-liquid mixture of hollow circular cylinder, make it to arrive discharge opening by the first and second hollow frustum sections; Be disposed at hollow circular cylinder away from discharge opening one end be used for control from said solid-weir plate (bank) of the isolated liquid flooding of liquid mixture device; Discharge the drawing mechanism of said overflowing liquid; And at least one is installed on the said auger conveyor and the fin in the space between the pitch of auger blade, and this fin tilts with respect to said center line.
Described weir plate device can comprise one be disposed at hollow circular cylinder away from discharge opening one end be used for control from said solid-first weir plate of the isolated heavy-fluid overflow of liquid mixture and one be disposed at hollow circular cylinder away from discharge opening one end be used for control from said solid-second weir plate of the isolated light liquid overflow of liquid mixture.Said drawing mechanism can be discharged the heavy-fluid and the light liquid of overflow respectively.For reaching the purpose of discharging liquid, also can use the method for rousing liquid.
This Figure of description has disclosed the preferred embodiment of the invention with the form of example, by the following description of carrying out with reference to accompanying drawing, above-mentioned and other purposes of the present invention, reaches advantage especially and will become more obvious.
Fig. 1 is the longitudinal profile schematic diagram according to sedimentation-type centrifuge of the present invention;
Fig. 2 is the local longitudinal sectional drawing of the amplification of an auger conveyor and some fins in the sedimentation-type centrifuge shown in Figure 1;
Fig. 3 be according to another embodiment of the present invention an auger conveyor and the local longitudinal sectional drawing of the amplification of some fins.
As shown in Figure 1, this three phase separator has one and axially stretches into The feed pipe 1 of rotary drum 2 large diameter cylinder sections and opening, rotary drum 2 bags Draw together the cylinder of a hollow. When rotary drum 2 High Rotation Speed, the typical case The charging thin pulp to be separated that ground is made up of solid, heavy-fluid and light liquid or or The person is solid-and liquid mixture is fed into by feed pipe 1 and some holes 12 In the rotary drum 2. The centrifugal action that produces at rotary drum 2 High Rotation Speeds Lower, the solid particle in the mixture is radially in export-oriented rotary drum 2 Wall surface moves.
Rotary drum 2 has one partly around auger conveyor 3 one ends The double inclined plane part of configuration, this end of auger conveyor is around feed pipe 1 configuration. This double inclined plane partly comprises first a frustum section, should The section inner wall surface is with the center of a bigger angle with respect to rotary drum 2 Line tilts, and the circle of the larger-diameter openend of this section and rotary drum 2 One end adjacency of shell of column, this double inclined plane part also has one second section Nose cone section, the openend that the diameter of this section is bigger and the first frustum section The openend adjacency that diameter is littler, and the inner wall surface of this section is with one Individual littler angle tilts with respect to the center line of rotary drum 2. Second section The openend that the diameter of nose cone section is bigger is positioned at such position, i.e. phase Be same as or solid when being lower than rotary drum 2 rotation-liquid mixture is formed Cylindrical free surface or Free Surface. The phase of this second frustum section The opposite end is as said discharge end 4.
The second frustum section comprise one be positioned near the discharge end 4 and Its position is higher than the dry section of the liquid level of said mixture in the rotary drum 2 6.
The solid particle of sedimentation soon arrives discharge end 4 and crosses dried before Remaining liquid is removed in dry district 6 there basically from solid.
This three phase separator also comprises some auger conveyors 3 that are disposed at Between helical blade (blade) pitch and the spiral of extension in parallel Fin 7, these fins 7 are installed on the said auger conveyor axle. Fin 7 is with respect to the center line of rotary drum 2, namely with respect to because solid-The cylindrical free surface that the liquid mixture High Rotation Speed forms is to tilt . Be added to most mixtures in the said separator along spiral The helical blade of conveyer 3 and fin 7 flow, simultaneously again because rubbing Wipe and be subjected to resistance. Therefore, mixture is tending towards centering on helical feed A near zone the inner wall surface of the rotary drum 2 of device 3 and fin 7 Flow. Because near the zone the inner wall surface of rotary drum 2 is away from spiral The rotation of conveyer 3 and fin 7 flows in this zone Mixture bears very big centrifugal force, therefore can be separated efficiently.
This three phase separator can have one or more until 20 spiral shells Revolve fin, the distance between fin radially outer edge and rotary drum 2 inner wall surface From being 5～100mm, the thickness of each fin is 0.5～2mm.
Distance between the said fin should be as much as possible little, so that reduce the distance that solid particle must pass, i.e. settling height is so that increase settling efficiency.If the distance between the fin is too little, solid particle stops up the gap between the fin easily, has hindered solid and has discharged from the gap between the fin.Therefore, the distance between the fin should according to pending solid-character of liquid mixture determines.
Gu if-solid content of liquid mixture is bigger, and the distance between fin radially outer edge and rotary drum 2 inner wall surface is preferably selected greatly; Gu if-solid content of liquid mixture is less, and then the distance between fin radially outer edge and rotary drum 2 inner wall surface is preferably selected forr a short time, so that increase the work area of fin, improves separative efficiency.
Therefore, best bet is to obtain one group of auger conveyor that has only the fin of different radical lengths, according to handled solid-solid content of liquid mixture selects a suitable auger conveyor.
Because centrifuge of the present invention or separator have the structure of double inclined plane sedimentation centrifuge, the free surface and the distance between rotary drum 2 inner wall surface of mixture that flows through rotary drum 2 is big.Therefore, the length of inserting the fin in the mixture in the rotary drum 2 is big, has improved separation accuracy and ability.
Relative rotary drum 2 center lines of said fin, promptly the optimized angle of this auger conveyor axle inclination should be little, so that reduce settling height, raising separative efficiency.But if angle is too little, the gap between the fin can be stopped up by solid particle, just solid particle can not be discharged the gap between fin.This angle preferred range should be 30～85 °.Fin surface is level and smooth, perhaps can have some level and smooth radial slots and fin, is used to increase surface area to obtain separating property preferably.
The fin of another embodiment can be one group of thin plate that is installed on the said auger conveyor axle parallel to each other, the Free Surface that this group thin plate forms when the auger conveyor axle favours the mixture rotation radially stretches out, and the blade of said auger conveyor can be wound onto on the outer rim of these thin plates.
The centrifugal force that acts on the mixture that fin 7 inserts is less relatively.But, because distance between the fin 7 and the distance between fin 7 and the auger blade, be that settling height is little, heavy, light grains in the mixture have been quickened, sedimented particle for example shown in Figure 2 and the sedimentation of floating particle, showy and that take place subsequently coalescent, this will cause the increase of separation accuracy.Especially, if said mixture comprises solid, heavy-fluid and light liquid, caused coalescent owing to contacting with fin 7 so, heavy-fluid and light liquid can form interface shown in Figure 2, separate with higher separation accuracy.
The light liquid that has separated and passed rotary drum 2 overflows weir plate 8, discharges from separator by passing away 9.Equally, separated and the heavy-fluid of passing rotary drum 2 is overflowed weir plate 10, from separator, discharged by passing away 11.Like this, the effect of weir plate 8,10 is that control is light, the overflow of heavy-fluid.
Fig. 2 shows the blade and the fin 7 of the auger conveyor 3 of amplification.Fig. 2 also shows sedimentation and floats the motion mode of particle between fin 7.
Fig. 3 shows the auger conveyor 3 and the fin 7 of another embodiment.The blade of auger conveyor 3 and fin 7 are different from angle mentioned above with one, and promptly the incline direction with the blade of auger conveyor shown in Figure 2 and fin 7 is opposite.
For another embodiment, preferred construction is that fin is set like this, be that fin is one group of thin plate that is installed on the said auger conveyor axle parallel to each other, this group thin plate radially stretches out from the free surface that the auger conveyor axle favours the mixture the rotary drum 2 of rotation, and said auger blade is wound onto on the outer rim of these thin plates.
To narrate the comparative example 1 and 2 that separates a kind of incoming mixture with sedimentation-type centrifuge of the prior art below, and use the example of separating a kind of incoming mixture according to three phase separator of the present invention.
Comparative example 1:
Fly press in the fish meal factory is made incoming mixture to be separated with sardine, and makes this mixture drum sieve of flowing through, and its amount is 1000 liters/hour.Incoming mixture comprises the oil of 30.8 (body) %, the water of 61.5 (body) %, and the solid of 7.7 (body) %.This incoming mixture is fed into one, and traditional to have internal diameter be that the monocline face three of the rotary drum of 250mm separates in sedimentation-type centrifuge.This incoming mixture is to be separated into light liquid, heavy-fluid and sediment under the condition of 3000G at 95 ℃, centrifugal force.This light liquid comprises 2.5 (body) % or water still less, 2.0 (body) % or solid still less, and surplus altogether is oil.This heavy-fluid comprises the water of 98.7 (body) %, the oil of solid and 0.83 (weight) % of 1.3 (body) %.Sediment comprises the oil of water, 3.0 (weight) % of about 70 (weight) %, and all the other are solid.
Said light liquid is that fish oil is sold by the further fine finishining of an awl dish formula sedimentation type centrifuge, heavy-fluid simmer down to protein concentrates, and sediment is by the drying machine drying.
By light liquid water content average out to 1.8 (body) % that traditional three phase separation sedimentation-type centrifuge is produced, this is a big numerical value.The solid that sedimentation goes out under centrifugal action in the light liquid is 2.0 (body) %, and this also is a big numerical value.Light liquid can not obtain as the fish oil product immediately.Oil content in the heavy-fluid is 0.83 (weight) %, and the solids content that sedimentation goes out under centrifugal action in the heavy-fluid is 1.3 (body) %, and these numerical value are also excessive, and heavy-fluid causes the obstruction of heating tube when concentrating.
Suppose incoming mixture only by traditional three phase separation sedimentation-type centrifuge processing once, in fact this three phase separation sedimentation-type centrifuge not can be used as three phase separator and uses.In order to make the light liquid that forms become the fish oil product, need to utilize subsequently awl dish formula sedimentation type centrifuge to light liquid fine finishining.When the heavy-fluid that produces concentrated, it caused heating tube to break down.
Comparative example 2:
Fly press in the fish meal factory is made incoming mixture to be separated with sardine, and makes this mixture by a drum sieve, and its amount is 3000 liters/hour.Incoming mixture comprises the oil of 15.6～31.5 (body) %, the solid of 3.2～12.1 (body) %, and all the other are water.This mixture joins in the sedimentation-type centrifuge of a traditional double inclined plane three phase separation with rotary drum that internal diameter is 320mm and an auger conveyor that does not have fin.Incoming mixture is to be separated into light liquid, heavy-fluid and sediment under the condition of 3000G at 90 ℃, centrifugal force.Light liquid comprises the water of 0.15 (weight) %, the solid of trace, and all the other are oil; Heavy-fluid comprises the oil of 0.1～0.26 (weight) %, the solid of 0.3 (body) %, and all the other are water; Sediment comprises the oil of 1.8 (weight) %, the water of about 65 (weight) %, and all the other are solid.
Said light liquid has good quality, can deliver immediately as the fish oil product, and heavy-fluid and sediment utilize the method described in the comparative example 1 to handle.The protein concentrates that is produced by heavy-fluid can not cause that when concentrated heating tube stops up, and is being better than comparative example 1 described protein concentrates qualitatively.The rate of drying of the sediment in this example substantially exceeds the rate of drying of comparative example 1 described sediment.
Example:
The incoming mixture of using in the comparative example 2 joins three phase separator of the present invention with 5100 liters/hour inlet amount.A rotary drum that it is 320mm that this three phase separator has an internal diameter and a place comprise the auger conveyor that six outer rims and said drum inner wall surface configuration are the fin in 20mm gap.The height of fin on the auger conveyor axle is 70mm, the 45 that tilts as shown in Figure 2, and configuration equidistantly between the pitch of described auger blade, and the pitch of this blade is 60mm.Incoming mixture is at 93 ℃, and centrifugal force is to be separated into light liquid, heavy-fluid and sediment under the condition of 3000G.Light liquid comprises the water of 0.12 (weight) %, the solid of trace, and all the other are oil; Heavy-fluid comprises the oil of 0.1～0.2 (weight) %, the solid of 0.3 (body) %, and all the other are water; Sediment comprises the oil of 1.8 (weight) %, the water of about 65 (weight) %, and all the other are solid.
Said light liquid quality is fine, can be immediately as a kind of fish oil product delivery.Heavy-fluid and sediment utilize method same in the comparative example 2 to handle.Concentrate the protein concentrates that forms by heavy-fluid and have the same good quality of protein concentrates described in the comparative example 2, and the rate of drying of sediment is faster than the rate of drying of sediment in the comparative example 2.
The three phase separator that the present invention example is used have with comparative example 2 in the substantially the same key dimension of double inclined plane three phase separation sedimentation type centrifuge used.But, owing in auger conveyor, dispose fin, the disposal ability of three phase separator described in the example of the present invention is 1.7 times of double inclined plane three phase separation sedimentation-type centrifuge (5100 liters/hour than 3000 liters/hour) in the comparative example 2, and all (water in the light liquid: 0.12 (weight) % is than 0.15 (weight) % than the purity height described in the comparative example 2 as the fish oil of light liquid with as the moisture weak solution of the protein concentrates of heavy-fluid; Oil in the heavy-fluid: 0.1～0.2 (weight) % is than 0.1～0.26 (weight) %).
Can inference, the existence meeting of fin 7 produces opposite effect to the stability on the arena face border between light, the heavy-fluid.But example mentioned above and the experimental result of comparative example have but shown the raising of separated light, heavy-fluid quality, and that this raising has proved is light, the existence on stable arena face border between the heavy-fluid.
Though describe in detail and disclosed embodiment preferred more of the present invention, should be appreciated that, under the situation that does not break away from claims spirit, still can make various modification and improvement.
Claims (3)
1. sedimentation-type centrifuge comprises:
One is elongated, hollow, rotatable, solid rotary drum, this rotary drum is suitable for admitting the mixture of liquid and solid, this rotary drum can rotate around the axis of a longitudinal extension, this rotary drum has a barrel portion, this barrel portion has first and second shaft ends, this rotary drum has each other the sloping portion of the first and second coaxial frustums of serial connection, this first sloping portion outwards stretches from the first end of this barrel portion, and this second sloping portion outwards stretches in abutting connection with this first sloping portion and from this first sloping portion, this first and second sloping portion respectively has axial awl wall, each axial awl wall launches an acute angle with respect to the rotating shaft of this rotary drum, the axial awl wall of this first sloping portion is bigger with respect to the angle of the rotating shaft expansion of rotary drum than the axial awl wall of second sloping portion with respect to the angle of the rotating shaft expansion of rotary drum, this rotary drum has first discharge opening of discharging for solid in the axial outer end portion of this second sloping portion, and this rotary drum has second discharge opening of discharging for liquid at the second end of this barrel portion; Rotatable, spirality auger conveyor that its length is substantially equal to the length overall of this rotary drum are rotatably installed in this rotary drum, it is characterized in that: it is the helical blade that tilts that this auger conveyor has a rotating shaft with respect to this rotary drum, and this helical blade and this barrel portion and sloping portion are suitable; This auger conveyor is installed in the barrel portion of this rotary drum at least with at least one helical fin, this helical fin and this auger blade are extended and in parallel to each other between the pitch of this auger blade, and this fin only is flat at it from radially inner circumference to outermost edge radially.
2. sedimentation-type centrifuge as claimed in claim 1, it will be characterised in that this second discharge opening has the first and second weir plate devices, this first and second weir plates device is respectively in order to discharge light liquid and heavy-fluid.
3. sedimentation-type centrifuge as claimed in claim 1, it is characterized in that, this fin has radially outer edge, the distance of the wall surface of this radially outer edge and this barrel portion is the 5-100 millimeter, the thickness of this fin is 0.5 to 2 millimeter, and the angle that this fin tilts with respect to the rotating shaft of this rotary drum is between 30 ° to 85 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108894 CN1033008C (en) | 1991-08-21 | 1991-08-21 | sedimentation centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108894 CN1033008C (en) | 1991-08-21 | 1991-08-21 | sedimentation centrifuge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1069677A CN1069677A (en) | 1993-03-10 |
| CN1033008C true CN1033008C (en) | 1996-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91108894 Expired - Fee Related CN1033008C (en) | 1991-08-21 | 1991-08-21 | sedimentation centrifuge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393423C (en) * | 2003-04-22 | 2008-06-11 | 维斯科特尔姆股份公司 | Centrifuge comprising hydraulic differential speed determination |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE10212187A1 (en) * | 2002-03-20 | 2003-10-02 | Hiller Gmbh | screw centrifuge |
| DK176946B1 (en) * | 2007-05-09 | 2010-06-14 | Alfa Laval Corp Ab | Centrifugal separator and a liquid phase drain port element |
| DK200801848A (en) * | 2008-12-30 | 2010-07-01 | Alfa Laval Corp Ab | A decanter centrifuge and a decanter centrifuge discharge port memeber. |
| CN102228759B (en) * | 2011-06-26 | 2013-03-13 | 韦志锋 | Sewage filter |
| EP2799146B1 (en) * | 2013-05-02 | 2019-11-06 | Alfa Laval Corporate AB | Ejection of solid particles from a centrifugal separator |
| CN107789892B (en) * | 2016-08-31 | 2024-07-16 | 中山双安微医疗科技有限公司 | Control structure for centrifugal filtration and collection of micron and submicron particles |
| EP3320976B1 (en) * | 2016-11-15 | 2020-12-30 | Ferrum Process Systems AG | Inlet device for a decanter centrifuge |
| CN107694768B (en) * | 2017-10-26 | 2023-11-14 | 江苏赛德力制药机械制造有限公司 | Horizontal spiral sedimentation disk centrifuge |
| CN108220935B (en) * | 2018-01-12 | 2020-03-10 | 中国工程物理研究院流体物理研究所 | Centrifugal sedimentation adhesion method for solid particles on inner cylindrical surface of metal workpiece |
| CN109082523B (en) * | 2018-09-28 | 2023-07-25 | 中国恩菲工程技术有限公司 | Centrifugal stripping equipment and scandium stripping method |
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1991
- 1991-08-21 CN CN 91108894 patent/CN1033008C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393423C (en) * | 2003-04-22 | 2008-06-11 | 维斯科特尔姆股份公司 | Centrifuge comprising hydraulic differential speed determination |
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| CN1069677A (en) | 1993-03-10 |
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