CN104452403B - The high dense hydrocyclone of Novel guide formula - Google Patents
The high dense hydrocyclone of Novel guide formula Download PDFInfo
- Publication number
- CN104452403B CN104452403B CN201410728375.XA CN201410728375A CN104452403B CN 104452403 B CN104452403 B CN 104452403B CN 201410728375 A CN201410728375 A CN 201410728375A CN 104452403 B CN104452403 B CN 104452403B
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- China
- Prior art keywords
- hydrocyclone
- slurry
- high dense
- novel guide
- grout outlet
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- 239000011440 grout Substances 0.000 claims abstract description 24
- 239000002002 slurry Substances 0.000 abstract description 40
- 230000007246 mechanism Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000012216 screening Methods 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 6
- 239000013049 sediment Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010893 paper waste Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/18—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force
- D21D5/22—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force in apparatus with a vertical axis
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention discloses the high dense hydrocyclone of a kind of Novel guide formula, comprise the housing with stock inlet and discharge pipe, and fusiform grout outlet assembly is installed between discharge pipe and inner walls.Between grout outlet assembly and inner walls, spiral stream guidance blade can be installed further.The present invention changes the assorted separated flow mechanism of traditional cone scummer slurry, and screenings is separated more steady, the assorted separation rate of slurry is high, and improves the flow velocity of inner slurry, overcomes the impact of traditional type HC Cleaner short-circuit flow, improves slagging-off efficiency.
Description
Technical field
The present invention relates to a kind of cleaning equipment of paper pulp, be specifically related to the high dense hydrocyclone of a kind of Novel guide formula, belong to pulp technology for making paper.
Background technology
In the paper making raw material of China, wastepaper as raw material has accounted for more than 65%, needs to use scummer to remove the heavy seeds such as irony, sandstone, slurry group, lumps, blob of viscose, iron nail that in secondary stock, proportion is larger.Because HC Cleaner can be run at higher concentrations, possess the advantages such as significant water-saving and electricity-saving, waste paper pulping production line obtains application widely.
Paper pulp HC Cleaner of the prior art adopts as structure disclosed in Chinese patent literature CN103352390A, is made up of charging threeway, grout outlet, large cone, housing and sediment pot etc.Slurry is entered by top charging threeway tangent line, and good slurry outlet is in top centre.Hypocone has equilibrium water import, bottom is furnished with gate valve and sediment pot, and hypocone and sediment pot are respectively equipped with sight glass.
Its operation principle utilizes that fiber is different from impurity proportion to be separated impurity.As shown in Figure 1, slurry 1 enters High Rotation Speed after scummer with certain pressure by charging threeway tangent line, and due to the difference of centrifugal force, heavy seeds is thrown toward wall, under gravity, gradually runs bottom cone 2, enters sediment pot.Fiber is less due to centrifugal force, runs gradually to center low-pressure area, and after arriving bottom, vortex rises, and is finally discharged by good slurry mouth 3.The cone 2 of HC Cleaner has certain taper, and cone 2 is longer, and slurry radius of turn in cone reduces gradually, avoids slurry stream to reduce at rotary course medium velocity, ensures that centrifugal force is strengthened, thus improve the purification efficiency of paper stock.Equilibrium water, bottom pressure, slightly larger than slurry pressure, makes fiber can not enter sediment pot 4, only has the heavy seeds such as sand grains, metallic particles, blob of viscose, plastics to sink in tank, decrease fiber loss.
Traditional type HC Cleaner technical problem underlying and shortcoming: when top slurry enters the starting stage after scummer with certain pressure by charging threeway tangent line, the asymmetric instability of rotating flow formed on the one hand, there is part mixed flow, be unfavorable for that impurity is separated with slurry, and consume part kinetic energy; On the other hand, the good slurry outlet in cylindrical portion center is occupied, in cylinder, mesozone and surrounding zone are and just enter slurry and take, heavily assorted because being flowed to surrounding zone to barrel direction by interior under centrifugal action, but the slurry fluid layer resistance (foreign body accumulated amount is much larger than good pulp fibres generally) of higher concentration (2 ~ 5%) must be overcome, the assorted separation of slurry could be realized.The slurry of visible existing HC Cleaner is mixed the restriction of separative efficiency by the factor such as above-mentioned mixed flow and resistance.Develop the higher HC Cleaner of a kind of separative efficiency and become technical problem urgently to be resolved hurrily.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides one.
Technical scheme: for solving the problems of the technologies described above, the high dense hydrocyclone of Novel guide formula provided by the invention, comprises the housing with stock inlet and discharge pipe, is provided with fusiform grout outlet assembly between described discharge pipe and inner walls.
As preferably, in order to make the slurry of input form directed, stable eddy flow, between described grout outlet assembly and inner walls, spiral stream guidance blade is also installed.
Particularly, described grout outlet assembly comprises interconnective positive round cone and inverted cone, and the top of described positive round cone is near stock inlet.
As preferably, described spiral stream guidance blade is identical three of rotation direction.
As preferably, adjoining spiral guide vane thickness is thinning from top to bottom and pitch becomes large.
As preferably, it is consistent that rotation direction and the stock inlet of described spiral stream guidance blade cut direction.
As preferably, described stock inlet and the orthogonal setting of discharge pipe.
As preferably, in order to the upper runner and lower flow channel making grout outlet assembly forms current difference, the height of described positive round cone is 2.5 ~ 6 times of the height of inverted cone.
Inventive principle: slurry has a down dip after tangential direction enters scummer with certain pressure by charging threeway, under the effect of guide vane and the grout outlet appearance normal cone bodily form, forms rapidly the high-speed rotary turn of tidal stream of three runners and introducing cylinder inner circumferential border area; When after the positive round cone arriving grout outlet appearance and inverted cone junction, slurry leaves runner, continues to do downward screw, and descending along inverted cone spiral, and descending process space constantly expands, and pressure is relative with rotating speed to be reduced.Because heavy seeds is in cylinder inner circumferential border area, need not resembles and will overcome high underflow layer resistance traditional desander and moved to periphery by Tong Nei center or mesozone, and rotate along inwall and come downwards to impurity row mouth; Comparatively light for relative proportion, constantly shift to center from surrounding zone in large quantities, then upwards discharge along grout outlet.
Beneficial effect: inventor is according to studying with slurry matter separating mechanism the structure of paper pulp high concentration desanding device for a long time, propose guide vane to be applied to the high dense assorted scummer structure of paper grade (stock) first to improve, namely new structure is proposed---grout outlet assembly, and have employed fusiform structure, possess following significant advantage:
1, when slurry leaves positive cone physically after runner, continue along inverted cone spiral descending, descending process space constantly expands, and pressure is relative with rotating speed to be reduced, and swirl stabilized, slurry is separated rapidly in this region with heavy seeds.In the assorted separation process of slurry, proportion is only had radially to move (" unidirectional " moves radially) gradually to center by surrounding zone and the good slurry of the row of entering is managed up relative to the lighter slurry of heavy seeds; And heavy seeds is in " original place ", and---surrounding zone---need not radially move.And in traditional desander, under centrifugal action, occur that " two-way " moves radially, namely heavy seeds is radially moved to surrounding zone by center and mesozone, lighter slurry is radially moved to center by surrounding zone and mesozone, the migration of such heavy seeds will overcome high dense (2 ~ 5%) pulp layer resistance and be reverse in opposite directions movement between slurry and heavy seeds, the transport time is longer, and the assorted separative efficiency of slurry declines relatively;
2, because above-mentioned slurry matter is separated advantage, the separable cartridge lower cone of the high dense hydrocyclone of Novel guide formula of the present invention comparatively traditional type HC Cleaner shortens, and the whole height of equipment is reduced, the required gravitional force overcome when reducing reinforced and pulp.
The present invention, owing to have employed the mechanism of spiral stream guidance blade further on grout outlet assembly, also has the following advantages:
1, when slurry to be had a down dip after tangential direction enters scummer by its top feed threeway with certain pressure, directed, stable eddy flow is formed rapidly under guide vane effect, overcome the part mixed flow in traditional desander Jin Jiang district and asymmetric stream, be beneficial to impurity to be separated with slurry, and reducing portion can divide kinetic energy consumption because mixed flow reduces;
2, slurry is under the effect of guide vane and the grout outlet appearance normal cone bodily form, rapid formation is pushed to an inwall district along guide vane runner rotating simultaneously fast, heavy seeds in slurry is made all to flow to rapidly cylinder inner circumferential border area, producing centrifugal action from traditional desander by rotational flow field, to make heavy seeds move to surrounding zone gradually different, and heavy seeds of the present invention just completes the separate mobile target area requirement of arrival surrounding zone in non-Disengagement zone, top.
Except technical problem, the technical characteristic forming technical scheme and the advantage brought by the technical characteristic of these technical schemes that the present invention recited above solves, the advantage that the other technologies feature comprised in the other technologies problem that the high dense hydrocyclone of Novel guide formula of the present invention can solve, technical scheme and these technical characteristics bring, will be described in more detail by reference to the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing HC Cleaner;
Fig. 2 is the structural representation of the high dense hydrocyclone of Novel guide formula of embodiments of the invention.
Detailed description of the invention
Embodiment:
The high dense hydrocyclone of Novel guide formula of the present embodiment as shown in Figure 2, its top stock inlet is substantially identical with existing HC Cleaner with the structure of bottom sediment pot, main improvements are at grout outlet assembly 5, its inner for cylindrical go out good slurry passage 6, be equivalent to the discharge pipe in existing HC Cleaner, grout outlet assembly 5 appearance top is positive round cone 5-1, and its top is small end; Bottom is shorter inverted cone 5-2, and it is large end, the length of positive round cone 5-1 is longer than inverted cone 5-2, can get 2.5 ~ 6 times, is preferably 4.5 times.
Three spiral stream guidance blades 7 are had at grout outlet assembly 5 outer surface, the overall outline of three spiral stream guidance blades 7 is cylinder, this cylinder and desander top cylinder body inner surface coincide, adjacent guide vanes thickness is thinning from top to bottom and pitch becomes large, it is consistent that guide vane rotation direction and stock inlet cut direction, to top cover down to the positive round cone of grout outlet appearance and inverted cone junction on guide vane height, charging aperture and cylindrical shell connecting portion include like this by guide vane, grout outlet outer cone surface and desander top cylinder inner surface constitute top and enter pulp flow channel, charging aperture and cylindrical shell connecting portion comprise three blade heights.
To grout outlet assembly, epicone body size Selection principle: outside diameter is with top circular cylindrical shell internal diameter; End diameter is relevant with feed rate, and feed rate greatly then corresponding end diameter is smaller.Guide vane pitch selection principle: pitch change is relevant with the tapering of epicone body, pitch becomes that the space making greatly single helical flow path and inner walls surround reduces gradually from top to bottom can not be too obvious, also be that in helical flow path, pulp flow acceleration should not be too large.To grout outlet assembly, adopt ICEM software to its model partition mixed structure grid, by Fluent software, numerical simulation is carried out to its inside 3% consistency pulp suspensions; Analyze its inner slurry running orbit, pressure distribution and velocity profile.Result shows, the dense hydrocyclone interior flow field of height of the present invention has symmetry, and screenings is separated more steady; Slurry flow field is made up of the inward eddy of the contour stealth near scummer inwall and central area; When entering to starch speed 4m/s, good slurry rate of discharge is 4.424kg/s, and tailings rate of discharge is 1.083kg/s, and fiber collecting efficiency is 80.54%, improves about 10% than traditional type scummer; The inner flow rate of slurry of novel scummer is faster simultaneously, overcomes the impact of traditional type HC Cleaner short-circuit flow, and slagging-off efficiency improves about more than 10% ~ 20%; Obtain through full mold experiment, the effect due to grout outlet assembly etc. brings the raising of slagging-off efficiency, makes the separable cartridge lower cone 8 of the high dense hydrocyclone (see figure 2) of Novel guide formula shorter by more than 1/3 than traditional separable cartridge lower cone.
Below by reference to the accompanying drawings embodiments of the present invention are described in detail, but the present invention is not limited to described embodiment.For those of ordinary skill in the art, in the scope of principle of the present invention and technological thought, embodiment is carried out to these embodiments and carries out multiple change, amendment, replacement and distortion and still fall within the scope of protection of the present invention.
Claims (6)
1. the high dense hydrocyclone of Novel guide formula, comprise the housing with stock inlet and discharge pipe, it is characterized in that: fusiform grout outlet assembly is installed between described discharge pipe and inner walls, between described grout outlet assembly and inner walls, spiral stream guidance blade is also installed, the case outlines of spiral stream guidance blade exterior is cylindrical, and adjoining spiral guide vane thickness is thinning from top to bottom and pitch becomes large.
2. the high dense hydrocyclone of Novel guide formula according to claim 1, it is characterized in that: described grout outlet assembly comprises interconnective positive round cone and inverted cone, the top of described positive round cone is near stock inlet.
3. the high dense hydrocyclone of Novel guide formula according to claim 1, is characterized in that: described spiral stream guidance blade is identical three of rotation direction.
4. the high dense hydrocyclone of Novel guide formula according to claim 3, is characterized in that: it is consistent that rotation direction and the stock inlet of described spiral stream guidance blade cut direction.
5. the high dense hydrocyclone of Novel guide formula according to claim 1, is characterized in that: described stock inlet and the orthogonal setting of discharge pipe.
6. the high dense hydrocyclone of Novel guide formula according to claim 2, is characterized in that: the height of described positive round cone is 2.5 ~ 6 times of the height of inverted cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410728375.XA CN104452403B (en) | 2014-12-05 | 2014-12-05 | The high dense hydrocyclone of Novel guide formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410728375.XA CN104452403B (en) | 2014-12-05 | 2014-12-05 | The high dense hydrocyclone of Novel guide formula |
Publications (2)
| Publication Number | Publication Date |
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| CN104452403A CN104452403A (en) | 2015-03-25 |
| CN104452403B true CN104452403B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410728375.XA Expired - Fee Related CN104452403B (en) | 2014-12-05 | 2014-12-05 | The high dense hydrocyclone of Novel guide formula |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198037B (en) * | 2015-11-12 | 2016-10-12 | 南京林业大学 | Based on the hydrocyclone system and the screenings separation method that inject dissolved air water formula pulp purifiation principle |
| CN106436425B (en) * | 2016-11-18 | 2018-12-25 | 绥阳县双龙纸业有限公司 | HC Cleaner |
| TWI645892B (en) * | 2017-08-31 | 2019-01-01 | 立石自動控制機器股份有限公司 | Centrifugal filter |
| CN111519459B (en) * | 2020-04-24 | 2022-04-12 | 杭州宏成纸业有限公司 | Multistage sand removing device |
| CN111957446A (en) * | 2020-06-19 | 2020-11-20 | 甘肃普罗生物科技有限公司 | Mill is with centrifugal cleaner of high-efficient quickly separating impurity |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4094794A (en) * | 1974-04-16 | 1978-06-13 | Escher Wyss Gmbh | Hydrocyclone |
| DE3248039A1 (en) * | 1982-12-09 | 1984-06-14 | Escher Wyss Gmbh, 7980 Ravensburg | Fluidised separator for separating impurities from suspensions of solids |
| CN2355810Y (en) * | 1998-11-29 | 1999-12-29 | 李风宁 | Adjustable high efficiency slag remover |
| CN201713724U (en) * | 2010-06-02 | 2011-01-19 | 安丘市天利机械制造有限公司 | Pulp inlet head of slag remover |
| CN202730531U (en) * | 2012-07-17 | 2013-02-13 | 广东理文造纸有限公司 | Paper pulp slag separator |
| CN103669075A (en) * | 2012-09-18 | 2014-03-26 | 天津滨海新区大港顺达造纸厂 | Novel grit separator for paper making |
-
2014
- 2014-12-05 CN CN201410728375.XA patent/CN104452403B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4094794A (en) * | 1974-04-16 | 1978-06-13 | Escher Wyss Gmbh | Hydrocyclone |
| DE3248039A1 (en) * | 1982-12-09 | 1984-06-14 | Escher Wyss Gmbh, 7980 Ravensburg | Fluidised separator for separating impurities from suspensions of solids |
| CN2355810Y (en) * | 1998-11-29 | 1999-12-29 | 李风宁 | Adjustable high efficiency slag remover |
| CN201713724U (en) * | 2010-06-02 | 2011-01-19 | 安丘市天利机械制造有限公司 | Pulp inlet head of slag remover |
| CN202730531U (en) * | 2012-07-17 | 2013-02-13 | 广东理文造纸有限公司 | Paper pulp slag separator |
| CN103669075A (en) * | 2012-09-18 | 2014-03-26 | 天津滨海新区大港顺达造纸厂 | Novel grit separator for paper making |
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| Publication number | Publication date |
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| CN104452403A (en) | 2015-03-25 |
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Granted publication date: 20160302 |