CN201211501Y - Improved structure for solid material gathering apparatus of pusher centrifuge - Google Patents
Improved structure for solid material gathering apparatus of pusher centrifuge Download PDFInfo
- Publication number
- CN201211501Y CN201211501Y CNU2008201203291U CN200820120329U CN201211501Y CN 201211501 Y CN201211501 Y CN 201211501Y CN U2008201203291 U CNU2008201203291 U CN U2008201203291U CN 200820120329 U CN200820120329 U CN 200820120329U CN 201211501 Y CN201211501 Y CN 201211501Y
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- fluid
- nozzles
- filter cake
- gathering
- collecting device
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Abstract
The utility model relates to an improved structure for a solid material collecting device of a charging centrifuge, which comprises a collecting device the inside of which is provided with a fluid receiving tank filled with a pressure fluid, wherein a plurality of nozzles which are uniformly distributed on the circumference are arranged on the tank wall of the fluid receiving tank close to an axle center of the collecting device; the arrangement direction of the nozzles is opposite to the tangential direction from which materials enter into the fluid receiving tank; the included angle alpha of both sides of the nozzles is between 5 and 25 DEG; the included angle beta formed between the arrangement direction of the nozzles and the radial direction of the collecting device is between 10 and 80 DEG; the width d of the nozzles is between 0.05 and 0.5 millimeter; and the space h between two adjacent nozzles is between 3 and 100 millimeters. A fluid bed is formed inside the fluid receiving tank; the fluid with certain pressure is ejected from the nozzles, and the ejecting direction of the fluid is opposite to the movement direction of a filter cake; after the filter cake with high-speed rotary motion enters into the fluid bed, the inverse fluid decelerates the filter cake and the filter cake is suspended due to the buoyancy generated by the fluid so as to realize 'soft landing', thereby reducing the impact force and improving the serviceability rate of products.
Description
Technical field
The utility model relates to a kind of solid material gathering system of pusher centrifuge, relates in particular to a kind of pusher centrifuge solid material gathering-device and improves structure.
Background technology
Pusher centrifuge is a kind of high efficiency filter formula centrifuge of continued operation.The suspension that needs to separate feeds centrifuge continuously through feed pipe, is quickened by feed distributor, and is sprinkling upon equably in the first order rotary drum.Solid partly is trapped within on the screen cloth and forms the ring-type filter cake, has not only done to rotate but also reciprocating first order rotary drum, when backhaul, this part filter cake is axially pushed ahead a segment distance along rotary drum, when process, on the screen cloth that filter cake is vacated, follow-up material of coming in forms new filter cake again.Reciprocating motion along with first order rotary drum, filter cake advances successively, when they when first order rotary drum enters second level rotary drum, filter cake not only position can produce and stirs, and because of having entered the rotary drum of larger diameter, so be subjected to more powerful centrifugal action, and in the two-stage rotary drum, filter cake has enough time of staying, therefore can reach very low remaining moisture percentage.When the process of first order rotary drum, the filter cake in the rotary drum of the second level continues to push ahead, outside the solid collection groove is pressed assigned direction discharge machine.Produce powerful centrifugal force because rotary drum rotates at a high speed, liquid partly is to obtain filtering through filter cake and screen cloth, and outside liquid collection trough discharge machine.When the purity to solid product has requirement, can in rotary drum, effectively wash, mother liquor and cleaning solution can also be collected respectively.
In the prior art, the solid collection groove is the endless loop of various sections, after at a high speed the filter cake of rotation is pushed out second level rotary drum, because strong collision can take place for action of inertia and static feeder, easily causes the fragmentation of material particles.Simultaneously for filter cake is not stopped up feeder, need on the second level rotary drum mouth of rotation, scraper be housed toward contact, this not only aggravates the feeder wearing and tearing more, and formed various filter cake crystal grain also can be scratched, sanding, damaged, even it is broken, reduce product quality, strengthened operating cost.Domestic and international solids collection system to this type, although think hard from each side such as the shape of feeder, material, surface state, done a large amount of tests, but it is all little to produce effects, to seek out the residual wet rate of lower filter cake still more, rotating speed that need be high as far as possible, big as far as possible centrifugal force and as far as possible little impulsive force, this is a pair of contradiction.
Summary of the invention
The utility model is in order to solve the problems of the technologies described above, a kind of buoyancy that utilizes fluid to produce is provided, to slow down the impact of filter cake to feeder, not only overcome above-mentioned drawback, and,, can also further reduce residual wet rate as long as select suitable fluid for use to some material, promptly have functions/drying, the pusher centrifuge solid material gathering-device that improves the product serviceability rate improves structure.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the utility model comprises gathering-device, the fluid collection tank of pressurising power fluid in being provided with in the described gathering-device, fluid collection tank is provided with several nozzles near the cell wall in gathering-device axle center.
As preferably, described nozzle that direction is set is opposite with the tangential direction that material enters fluid collection tank.
As preferably, the both sides angle α of described nozzle is 5～25 degree, and the angle β that radially forms that direction and gathering-device are set of nozzle 10～80 spends, and the width d of nozzle is 0.05～0.5mm, and the spacing h between adjacent two nozzles is 3～100mm.
The beneficial effects of the utility model are: air, hot gas, water or other fluid of filling certain pressure in fluid collection tank, fluid penetrates from nozzle, in the fluid collection tank of channel section, form the fluid equalizing bed, the direction of fluid ejection is opposite with the filter cake direction of motion, after the filter cake of high speed rotary motion enters liquid bed, reverse fluid slows down by filter cake, and the buoyancy that fluid produces suspends filter cake, has realized rotating at a high speed " soft landing " of filter cake.Flow rate of fluid, flow can be regulated according to the filter cake particle of different specific weight, shape, size.The utility model effectively solves problems such as solid collection groove serious wear, the fragmentation of filter cake crystal grain.Simultaneously, select suitable fluid to play and take away filter cake moisture, further reduce residual wet rate, perhaps strengthen washing, improve filter cake purity.
Description of drawings
Fig. 1 is a kind of partial structurtes schematic diagram of pusher centrifuge.
Fig. 2 is a kind of main TV structure schematic diagram of the present utility model.
Fig. 3 is the enlarged drawing of A among Fig. 2.
Fig. 4 is a kind of axial sectional structure schematic diagram of the present utility model.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: the pusher centrifuge solid material gathering-device of present embodiment improves structure, as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, solid material gathering-device 1 is installed in the feeding system 2 of pusher centrifuge, comprise gathering-device 1, the fluid collection tank 3 that an interior pressurising power fluid is arranged in the gathering-device 1, fluid collection tank is near having a plurality of nozzles that are uniformly distributed along the circumference 4 on the cell wall in gathering-device axle center, nozzle that direction is set is opposite with the tangential direction that material enters fluid collection tank.The both sides angle α of nozzle 4 is 15 degree, and the angle β that radially forms that direction and gathering-device are set of nozzle is 60 degree, and the width d of nozzle is 0.3mm, and the spacing h between adjacent two nozzles is 50mm.
In fluid collection tank, fill air, hot gas, water or other fluid of certain pressure, fluid penetrates from nozzle, in the fluid collection tank of channel section, form the fluid equalizing bed, the direction of fluid ejection is opposite with the filter cake direction of motion, after the filter cake of high speed rotary motion enters liquid bed, reverse fluid slows down by filter cake, and the buoyancy that fluid produces suspends filter cake, has realized rotating at a high speed " soft landing " of filter cake.Flow rate of fluid, flow can be regulated according to the filter cake particle of different specific weight, shape, size.The utility model effectively solves problems such as solid collection groove serious wear, the fragmentation of filter cake crystal grain.Simultaneously, select suitable fluid to play and take away filter cake moisture, further reduce residual wet rate, perhaps strengthen washing, improve filter cake purity.
Claims (3)
1, a kind of pusher centrifuge solid material gathering-device improves structure, it is characterized in that comprising gathering-device, the fluid collection tank of pressurising power fluid in being provided with in the described gathering-device, fluid collection tank is provided with several nozzles near the cell wall in gathering-device axle center.
2, pusher centrifuge solid material gathering-device according to claim 1 improves structure, it is characterized in that described nozzle that direction is set is opposite with the tangential direction that material enters fluid collection tank.
3, pusher centrifuge solid material gathering-device according to claim 1 and 2 improves structure, the both sides angle α that it is characterized in that described nozzle is 5～25 degree, the angle β that radially forms that direction and gathering-device are set of nozzle is 10～80 degree, the width d of nozzle is 0.05～0.5mm, and the spacing h between adjacent two nozzles is 3～100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201203291U CN201211501Y (en) | 2008-06-25 | 2008-06-25 | Improved structure for solid material gathering apparatus of pusher centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201203291U CN201211501Y (en) | 2008-06-25 | 2008-06-25 | Improved structure for solid material gathering apparatus of pusher centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201211501Y true CN201211501Y (en) | 2009-03-25 |
Family
ID=40495656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201203291U Expired - Fee Related CN201211501Y (en) | 2008-06-25 | 2008-06-25 | Improved structure for solid material gathering apparatus of pusher centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201211501Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974472A (en) * | 2012-12-04 | 2013-03-20 | 江苏牡丹离心机制造有限公司 | Horizontal type screw discharging centrifuge provided with hot air drying device |
| CN111185310A (en) * | 2019-12-11 | 2020-05-22 | 浙江大学 | Large-tonnage pressurizing device for rock supergravity high-temperature high-pressure experiment |
-
2008
- 2008-06-25 CN CNU2008201203291U patent/CN201211501Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974472A (en) * | 2012-12-04 | 2013-03-20 | 江苏牡丹离心机制造有限公司 | Horizontal type screw discharging centrifuge provided with hot air drying device |
| CN111185310A (en) * | 2019-12-11 | 2020-05-22 | 浙江大学 | Large-tonnage pressurizing device for rock supergravity high-temperature high-pressure experiment |
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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 |
Granted publication date: 20090325 Termination date: 20140625 |
|
| EXPY | Termination of patent right or utility model |