CN205074108U - Screw mechanism of spiral shell centrifugal separator for sleeping in - Google Patents
Screw mechanism of spiral shell centrifugal separator for sleeping in Download PDFInfo
- Publication number
- CN205074108U CN205074108U CN201520752167.3U CN201520752167U CN205074108U CN 205074108 U CN205074108 U CN 205074108U CN 201520752167 U CN201520752167 U CN 201520752167U CN 205074108 U CN205074108 U CN 205074108U
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- Prior art keywords
- helical blade
- helical
- pitch
- screw mechanism
- spiral cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
- B04B2001/205—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl with special construction of screw thread, e.g. segments, height
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- Centrifugal Separators (AREA)
Abstract
The utility model discloses a screw mechanism of spiral shell centrifugal separator for sleeping in belongs to centrifugation equipment field. Including the rotary drum, its characterized in that still includes: the helical tube body, the helical tube body is including the conical shell of dry section and the cylindricality barrel of settling section, helical blade, its rigid coupling on the external wall of helical tube, helical blade is including lieing in the helical blade on the conical shell and lieing in the 2nd helical blade on the cylindricality barrel, helical blade's pitch is crescent to dry section from the settling section, the dry section orientation of helical blade orientation favours the the central axis of the helical tube body, the the central axis of the 2nd helical blade perpendicular to helical tube body, the acceleration of a helical blade and/or the 2nd helical blade's pitch increase is constant or variable, compared with the prior art, the utility model, its beneficial effect lies in the ejection of compact speed height of solid phase thing and the clarity height of liquid phase thing, separates effectually.
Description
Technical field
The utility model relates to centrifugal separation equipment, specifically a kind of screw mechanism of horizontal screw centrifuge.
Background technology
Horizontal type screw settling centrifuge (abbreviation horizontal screw centrifuge) runs up owing to having, continuous feed, automaticity are high, good operational environment and the advantage such as easy to maintenance and be widely used in Separation of Solid and Liquid and the dehydration of the industries such as dehydrating municipal sludge, Plant Sludge dehydration, industrial and agricultural wastewater process, petrochemical industry, food, pharmacy.Screw mechanism mainly plays effect sediment being constantly excreted to machine exterior by slag notch, is the key working part of horizontal screw centrifuge, and its performance directly determines the ability to work of centrifuge, life cycle and separating effect.
The screw mechanism of current horizontal screw centrifuge generally adopts uniform pitch, discharge because sediment mainly concentrates on dryer section, the space that sediment passes through in dryer section diminishes, if dryer section and settling section are designed to uniform pitch and easily cause putty, the solids exit speed of discharging is low, at the bottom of the liquid clarity of discharging, inferior separating effect.
As publication number be CN101058084A, name is called that the Chinese invention patent of " horizontal screw centrifuge screw conveying structure " discloses a kind of auger conveyor structure, comprise the helical blade of settling section and the helical blade of dryer section, the pitch S=δ of the helical blade of settling section, wherein δ is constant; The pitch S=δ-K of the helical blade of dryer section, wherein δ is constant, and K is constant or ever-increasing variable and K value is less than δ value.By adopting varying pitch technology to reduce the moisture content of sediment to the auger conveyor cone section part of dry section.This helical structure does not adopt varying pitch to the helical blade of settling section, the clarity of discharging liquid phase can not be improved better, and the pitch of the helical blade of reduction dryer section reduces the discharge velocity of sediment, very easily cause putty, the pusher angle also not limiting helical blade in addition reduces friction and improves discharge velocity.
Utility model content
The utility model, in order to overcome the deficiencies in the prior art, provides a kind of screw mechanism of horizontal screw centrifuge, and object is to improve the stoking rate of discharging solid phase and the clarity of discharging liquid phase.
In order to solve above-mentioned technical problem, the basic technical scheme that the utility model proposes is:
A screw mechanism for horizontal screw centrifuge, comprises rotary drum, it is characterized in that, also comprises:
Spiral cylinder, described spiral cylinder comprises the conical shell of dryer section and the column-shaped barrel of settling section;
Helical blade, it is fixed on spiral cylinder outer wall, described helical blade comprises the first helical blade be positioned on conical shell and the second helical blade be positioned on column-shaped barrel, the pitch of described helical blade increases from settling section gradually to dryer section, described first helical blade favours the central axis of spiral cylinder towards dryer section direction, described second helical blade is perpendicular to the central axis of spiral cylinder.
Further, the acceleration that the pitch of described first helical blade and/or the second helical blade increases is constant or variable.
Further, described second helical blade favours the central axis of spiral cylinder and is 45 ~ 90 degree with the angle of drum inner wall.
Further, described first helical blade and the second helical blade are Nature Link.
Further, the semi-cone angle of described rotary drum is not more than 16 °.
Further, the gap of described helical blade and drum inner wall is 0.5 ~ 2mm.
The beneficial effects of the utility model are:
1, because the pitch of helical blade increases from settling section gradually to dryer section, helical blade entirety adopts varying pitch design, sediment increases in the space that dryer section is passed through, liquid phase thing reduces in the space that settling section passes through, thus improve the discharging efficiency of solid, prevent putty, enhance the effect of settling of liquid phase thing simultaneously, improve the clarity of the liquid of discharge.
2, because the first helical blade favours the central axis of spiral cylinder towards dryer section direction and have certain angle with drum inner wall, second helical blade is perpendicular to the central axis of spiral cylinder, thus the first helical blade becomes scraper from original pusher, sediment is not easily piled up, reduce friction, prevent putty, improve the discharge velocity of solid.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the screw mechanism of a kind of horizontal screw centrifuge of the present utility model;
Fig. 2 is the partial enlarged drawing of the first helical blade.
Description of reference numerals: 1 charging aperture, 2 rotary drums, 3 spiral cylinder, 31 conical shells, 32 column-shaped barrels, 4 helical blades, 41 first helical blades, 42 second helical blades.
Detailed description of the invention
Below with reference to drawings and Examples, the utility model is described further, but protection domain of the present utility model should not be limited with this.
For convenience of description and understand the technical solution of the utility model, below illustrate that the orientation that the noun of locality used all is shown with accompanying drawing is as the criterion.
As shown in Figure 1, the screw mechanism of a kind of horizontal screw centrifuge of the present utility model, comprises rotary drum 2, spiral cylinder 3 and helical blade 4.
Spiral cylinder 3 comprises the conical shell 31 of dryer section and the column-shaped barrel 32 of settling section.Helical blade 4 is fixed on the outer wall of spiral cylinder 3.Helical blade 4 comprises the first helical blade 41 be positioned on conical shell 31 and the second helical blade 42 be positioned on column-shaped barrel 32.First helical blade 41 and the second helical blade 42 are Nature Link.
The pitch of helical blade 4 increases from settling section gradually to dryer section, and that is helical blade 4 entirety adopts varying pitch design, and the increase difference of the adjacent pitch of helical blade 4 can be fixed value also can be non-fixed value.Fixed value should decide according to the design feature of the character of separation of material or horizontal screw centrifuge.On-fixed value can be arranged arbitrarily, and in the present embodiment, on-fixed value is set to the numerical value increased according to certain acceleration.The acceleration that the pitch of the first helical blade 41 and/or the second helical blade 42 increases is constant or variable, specifically, helical blade 4 both can overallly adopt certain acceleration to increase pitch, also the first helical blade 41 and the second helical blade 42 individually can be designed to increase pitch according to different acceleration.Accekeration should decide according to the design feature of the character of separation of material or horizontal screw centrifuge.
Solid formation granularity as separation of material is comparatively large, the corresponding increase of increase difference of the pitch of helical blade 4.When separation of material solid content is low, when concentration is low, the corresponding reduction of increase difference of the pitch of helical blade 4, helical blade 4 distributes comparatively tight.As required the sediment moisture percentage of discharging low, the corresponding reduction of increase difference of the pitch of the first helical blade 41, by reducing fixed value or acceleration realization.
Helical blade 4 varying pitch design also should in conjunction with the design feature of horizontal screw centrifuge.Along with updating of horizontal screw centrifuge, the horizontal screw centrifuge of big L/D ratio can reduce energy consumption again because it can improve production capacity, and demand increases day by day, becomes the main type of development.Draw ratio strengthens, and the pitch of helical blade 4 realizes increasing the corresponding reduction of difference by reduction fixed value or acceleration, and helical blade 4 encrypts arrangement.
First helical blade 41 favours the central axis of spiral cylinder 3 and meets 45 °≤θ≤90 ° with the angle theta of rotary drum 2 inwall towards dryer section direction, the second helical blade 42 is perpendicular to the central axis of spiral cylinder 3.First helical blade 41 becomes from the original central axis perpendicular to spiral cylinder 3 central axis favouring spiral cylinder 3, thus the first helical blade 41 becomes scraper from original pusher, sediment is not easily piled up, reduce friction, prevent putty from improving the discharge velocity of discharging solid, improve the clarity of discharging liquid simultaneously.
As shown in Figure 2, the semi-cone angle of rotary drum 2 is not more than 16 °, and the semi-cone angle increasing rotary drum 2 can improve Fluid tank depth, be conducive to the clarity improving the liquid of discharging, but while semi-cone angle increases, horizontal screw centrifuge dryer section easily putty occurs, angle theta should corresponding reduction.Helical blade 4 keeps 0.5 ~ 2mm with the gap a of the inwall of rotary drum 2 simultaneously.
The operation principle of the application's utility model:
Rotary drum 2 and spiral cylinder 3 rotate with certain differential same-directional high-speed, material is introduced continuously after spiral cylinder 3 accelerates by feed pipe and is entered rotary drum 2, under effect of centrifugal force, heavier solid formation is deposited on rotary drum 2 inwall and forms sediment layer, the solid formation of deposition is continuously pushed into rotary drum 2 section of cone by helical blade 4, discharge through slag notch, lighter liquid phase thing then forms internal layer settling section, is discharged by the clear liquid mouth of rotary drum 2 other end.Because the pitch of helical blade 4 increases from settling section gradually to dryer section, the pitch of horizontal screw centrifuge dryer section is greater than the pitch of settling section.Sediment increases in the space that dryer section is passed through, and rate of discharge strengthens.Liquid phase thing reduces in the space that settling section passes through, and improves the effect of settling of the solid formation contained in liquid phase thing, thus improves the clarity of the liquid of discharge.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also change above-mentioned embodiment and revise.Therefore, the utility model is not limited to detailed description of the invention disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this description, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (6)
1. a screw mechanism for horizontal screw centrifuge, comprises rotary drum, it is characterized in that, also comprises:
Spiral cylinder, described spiral cylinder comprises the conical shell of dryer section and the column-shaped barrel of settling section;
Helical blade, it is fixed on spiral cylinder outer wall, described helical blade comprises the first helical blade be positioned on conical shell and the second helical blade be positioned on column-shaped barrel, the pitch of described helical blade increases from settling section gradually to dryer section, described first helical blade favours the central axis of spiral cylinder towards dryer section direction, described second helical blade is perpendicular to the central axis of spiral cylinder.
2. the screw mechanism of a kind of horizontal screw centrifuge according to claim 1, is characterized in that, the acceleration that the pitch of described first helical blade and/or the second helical blade increases is constant or variable.
3. the screw mechanism of a kind of horizontal screw centrifuge according to claim 1, is characterized in that, described second helical blade favours the central axis of spiral cylinder and is 45 ~ 90 degree with the angle of drum inner wall.
4. the screw mechanism of a kind of horizontal screw centrifuge according to claim 1, is characterized in that, described first helical blade and the second helical blade are Nature Link.
5. the screw mechanism of a kind of horizontal screw centrifuge according to claim 1, is characterized in that, the semi-cone angle of described rotary drum is not more than 16 °.
6. the screw mechanism of a kind of horizontal screw centrifuge according to claim 1, is characterized in that, the gap of described helical blade and drum inner wall is 0.5 ~ 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520752167.3U CN205074108U (en) | 2015-09-23 | 2015-09-23 | Screw mechanism of spiral shell centrifugal separator for sleeping in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520752167.3U CN205074108U (en) | 2015-09-23 | 2015-09-23 | Screw mechanism of spiral shell centrifugal separator for sleeping in |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205074108U true CN205074108U (en) | 2016-03-09 |
Family
ID=55426547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520752167.3U Expired - Fee Related CN205074108U (en) | 2015-09-23 | 2015-09-23 | Screw mechanism of spiral shell centrifugal separator for sleeping in |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205074108U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096648A (en) * | 2017-05-26 | 2017-08-29 | 安徽普源分离机械制造有限公司 | A kind of horizontal spiral automatic discharging sedimentation centrifuge of negative pressure driving charging |
| WO2018136021A1 (en) * | 2017-01-23 | 2018-07-26 | Георгий ТРОШИН | Sedimentation centrifuge |
-
2015
- 2015-09-23 CN CN201520752167.3U patent/CN205074108U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018136021A1 (en) * | 2017-01-23 | 2018-07-26 | Георгий ТРОШИН | Sedimentation centrifuge |
| CN107096648A (en) * | 2017-05-26 | 2017-08-29 | 安徽普源分离机械制造有限公司 | A kind of horizontal spiral automatic discharging sedimentation centrifuge of negative pressure driving charging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160309 Termination date: 20170923 |