CN201127911Y - Decanter centrifuge with scraping knife device - Google Patents
Decanter centrifuge with scraping knife device Download PDFInfo
- Publication number
- CN201127911Y CN201127911Y CNU2007200768613U CN200720076861U CN201127911Y CN 201127911 Y CN201127911 Y CN 201127911Y CN U2007200768613 U CNU2007200768613 U CN U2007200768613U CN 200720076861 U CN200720076861 U CN 200720076861U CN 201127911 Y CN201127911 Y CN 201127911Y
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- CN
- China
- Prior art keywords
- horizontal screw
- scraper
- screw centrifuge
- end flange
- connecting ring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a horizontal screw centrifuge with a scraper device, which comprises a barrate, a feed pipe, an encloser, a spiral conveyer and a little end flange of the barrate and is characterized in that the outer side surface of the little end flange is provided with a scraper assembly A connected with the little end flange; the scraper assembly A comprises a connecting ring connected with the little end flange and a plurality of scrapers fixedly connected on the connecting ring; the scrapers are arranged in a vertical direction of a ring section of the annular connecting ring. The tail end of the barrate of an outer sleeve of the spiral conveyer is additionally provided with the scraper device, therefore, the scraper device in the operation can effectively prevent hard caking which does not easy to fall off from being formed on the encloser surface when the horizontal screw centrifuge separates a solid-liquid compound, thereby guaranteeing the normal operation of the centrifuge and prolonging the service life of the device.
Description
Technical field
The utility model relates to a kind of horizontal screw centrifuge, and particularly a kind of horizontal screw centrifuge with doctor blade device belongs to the centrifugal machine class.
Background technology
Horizontal screw centrifuge (as Fig. 1) is the density contrast that relies on solid, liquid two-phase, under action of centrifugal force, realizes the separation machinery that solid, liquid separates by the sinking speed of accelerating solid phase particles.Along with the needs of environmental protection in modern age, disposal of three wastes development, for all raisings gradually of requirement of industrial wastewater and sludge dewatering treatment.Owing to characteristics such as the unique continued operation of horizontal screw centrifuge, treating capacity are big, specific yield power consumption is less, adaptability is strong are able to very fast development.In the development of decades, the structure of horizontal screw centrifuge, performance, parameter alter a great deal, and disintegrate-quality, production capacity improve constantly, and range of application is more extensive, has bright development prospect.
But; be applied in the wastewater treatment process of chemical industry (especially steel plant) at horizontal screw centrifuge; mud after the processed often the solid content height, viscosity is big, shale lumps firmly, easily and be bonded at horizontal screw centrifuge case surface is not easy to come off; time one is long; more and more thicker the coming in contact with regard to easy and Drum of Horizontal Screw Centrifuge Based of luming causes machine rotary drum component wear; even after friction is more, cause rotary drum to damage running accidents such as equipment downtime.Along with horizontal screw centrifuge at home the application of chemical industry continue to increase, also more and more higher to the reliability and the security requirement of horizontal screw centrifuge.Because the sewage disposal device shutdown is very big to enterprise's production influence in chemical enterprise, how to guarantee that chemical engineering sludge does not influence the normal operation of horizontal screw centrifuge, becomes a difficult problem of pendulum in face of the horizontal screw centrifuge designer.
The utility model content
In the purpose of this utility model: be intended to propose a kind of horizontal screw centrifuge with doctor blade device, hope can be eliminated the solid layer on the drum inner wall that produces in the horizontal screw centrifuge operation process effectively, prevents the accident potential that causes because of equipment attrition.
The screw centrifuge for sleeping in of this band doctor blade device comprises it is characterized in that the small end flange 4 of rotary drum 2, feed pipe 1, case 6, auger conveyor 3 and rotary drum: a connected scraper sub-assembly A is being set on the lateral surface of described small end flange 4; Described scraper sub-assembly A comprises a connecting ring 7 that is connected with small end flange 4 and is fixed in several scrapers 8 compositions that connection is changed.
Described scraper 8 is arranged on the vertical direction of ring cutting face of ring-type connecting ring 7.
Horizontal screw centrifuge according to this band doctor blade device of above technical scheme design, because the rotary drum end is set up an auger conveyor outside doctor blade device, this doctor blade device in the running can very be prevented effectively and eliminate the case surface that produces when the horizontal screw centrifuge rotation separates the solid, liquid mixture and do not allow caducous hard to lump; Both guaranteed the normal operation of centrifuge, the service life that also can improve equipment simultaneously.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of the horizontal screw centrifuge of a concrete form;
Fig. 3 is a scraper sub-assembly enlarged drawing;
Fig. 4 is that scraper and rotary drum small end flange assembled shaft are to schematic diagram.
Among the figure: 1-feed pipe 2-rotary drum 3-auger conveyor 4-small end flange 5-slag notch 6-case 7-connecting ring 8-scraper
The specific embodiment 1
The horizontal screw centrifuge of this band doctor blade device shown in Fig. 1-2, comprise the small end flange 4 of rotary drum 2, feed pipe 1, case 6, auger conveyor 3 and rotary drum, it is characterized in that: a connected scraper sub-assembly A is being set on the lateral surface of described small end flange 4; Described scraper sub-assembly A comprises a connecting ring 7 that is connected with small end flange 4 and is fixed in several scrapers 8 compositions that connection is changed.
Described scraper 8 is arranged on the vertical direction of ring cutting face of ring-type connecting ring 7.
Its concrete design is as follows:
When implementing, connecting ring 7 is welded into a doctor blade device 9 (as Fig. 3) with scraper 8 by Fig. 3 requirement, requires smooth welded seam smooth.The Kong Yuxiao end flanges of passing on the connecting ring with matching screw is fixed then, and guarantees that doctor blade device is not loosening.Try out under rotary drum low speed rotation situation, the running orbit of perusal scraper is adjusted scraper and lower encioser gap (as Fig. 2), does not contact to guarantee both.
Its work principle is: after mud is sent into rotary drum by feed pipe 1, under the centrifugal action that rotation produces at a high speed, changed in the rotary drum chamber immediately.Mud granule is because proportion is bigger, and centrifugal force is also big, and therefore quilt is got rid of and is attached on the drum inner wall, forms solid layer (because ring-type is called solid circular layer); Therefore moisture can only be called the pendular ring layer at the inboard liquid level that forms of solid circular layer because density is less, and centrifugal force is little.Gu the mud of circular layer under the slow promotion of auger conveyor 3, is transported to rotary drum small end flange 4, the slag notch 5 around rotary drum small end flange 4 is discharged continuously, drops to lower encioser 6 outer (as Fig. 1 horizontal screw centrifuge structural representation).
The technical problem of the prior art that the utility model solved is: because existing mud is when the rotary drum slag notch is discharged, part mud is the centrifuge lower encioser because gravity effect vertically drops out, and part mud is thrown on the lower encioser inwall because of centrifugal forces affect.When mud accumulates when filling up lower encioser and rotary drum gap gradually, mud inevitable with the bowl friction of rotation at a high speed, thereby rotary drum wearing and tearing and cause the centrifuge rotor dynamic balancing to be lost efficacy, the final excessive shutdown of machine vibration.
The technical scheme that the technical problem of the prior art that solves the utility model adopts is that the structure of rotary drum is improved, and increases the mud doctor blade device in rotary drum awl section part.The utility model and prior art contrast, and its effect is actively with tangible.We find the existence owing to the mud doctor blade device, and the mud that gets rid of on the lower encioser inwall can in time be cleaned out outside the lower encioser, and the wearable hard alloy top layer guarantees that scraper has enough service life.Simultaneously doctor blade device is because simple in structure, and light weight does not have influence on the assembly technology of centrifuge original rotor dynamic balancing system and equipment.After this technology of employing was used for chemical wastewater treatment, obviously improved the service life of Drum of Horizontal Screw Centrifuge Based, and the phenomenon of lower encioser mud friction rotary drum no longer appears in centrifuge.
Claims (2)
1, a kind of horizontal screw centrifuge with doctor blade device, comprise the little end flanges (4) of rotary drum (2), feed pipe (1), case (6), auger conveyor (3) and rotary drum, it is characterized in that: a connected scraper sub-assembly A is being set on the lateral surface of described little end flanges (4); Described scraper sub-assembly A comprises a connecting ring (7) that is connected with little end flanges (4) and is fixed in several scrapers (8) composition that connection is changed.
2, a kind of horizontal screw centrifuge with doctor blade device as claimed in claim 1 is characterized in that: described scraper (8) is arranged on the vertical direction of ring cutting face of ring-type connecting ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200768613U CN201127911Y (en) | 2007-10-31 | 2007-10-31 | Decanter centrifuge with scraping knife device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200768613U CN201127911Y (en) | 2007-10-31 | 2007-10-31 | Decanter centrifuge with scraping knife device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201127911Y true CN201127911Y (en) | 2008-10-08 |
Family
ID=40015737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200768613U Expired - Fee Related CN201127911Y (en) | 2007-10-31 | 2007-10-31 | Decanter centrifuge with scraping knife device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201127911Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363137A (en) * | 2011-10-24 | 2012-02-29 | 湘潭离心机有限公司 | Horizontal decanter solid-bowl centrifuge |
| CN102728485A (en) * | 2011-04-06 | 2012-10-17 | 上海市离心机械研究所有限公司 | Leakproof structure of centrifugal machine for silicon carbide separation |
| CN106423587A (en) * | 2016-06-14 | 2017-02-22 | 上海龙育机械设备有限公司 | Closed centrifugal machine |
| CN106694241A (en) * | 2015-08-26 | 2017-05-24 | 苏州瑞威离心分离技术有限公司 | Horizontal screw-discharge sedimentation centrifuge |
| CN106975575A (en) * | 2017-06-05 | 2017-07-25 | 北京金隅琉水环保科技有限公司 | Horizontal screw centrifuge and crystal salt dewatering system |
| CN107694768A (en) * | 2017-10-26 | 2018-02-16 | 江苏赛德力制药机械制造有限公司 | Horizontal type screw settling disk plate centrifuge |
-
2007
- 2007-10-31 CN CNU2007200768613U patent/CN201127911Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728485A (en) * | 2011-04-06 | 2012-10-17 | 上海市离心机械研究所有限公司 | Leakproof structure of centrifugal machine for silicon carbide separation |
| CN102728485B (en) * | 2011-04-06 | 2014-03-12 | 上海市离心机械研究所有限公司 | Sealing structure of centrifugal machine for silicon carbide separation |
| CN102363137A (en) * | 2011-10-24 | 2012-02-29 | 湘潭离心机有限公司 | Horizontal decanter solid-bowl centrifuge |
| CN106694241A (en) * | 2015-08-26 | 2017-05-24 | 苏州瑞威离心分离技术有限公司 | Horizontal screw-discharge sedimentation centrifuge |
| CN106694241B (en) * | 2015-08-26 | 2018-10-02 | 苏州瑞威离心分离技术有限公司 | Horizontal spiral discharge sedimentation centrifuge |
| CN106423587A (en) * | 2016-06-14 | 2017-02-22 | 上海龙育机械设备有限公司 | Closed centrifugal machine |
| CN106423587B (en) * | 2016-06-14 | 2019-01-25 | 上海龙育机械设备有限公司 | A kind of closed centrifugal machine |
| CN106975575A (en) * | 2017-06-05 | 2017-07-25 | 北京金隅琉水环保科技有限公司 | Horizontal screw centrifuge and crystal salt dewatering system |
| CN107694768A (en) * | 2017-10-26 | 2018-02-16 | 江苏赛德力制药机械制造有限公司 | Horizontal type screw settling disk plate 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20121031 |