CN2464422Y - Lip shape conic hole filter net - Google Patents
Lip shape conic hole filter net Download PDFInfo
- Publication number
- CN2464422Y CN2464422Y CN 01211881 CN01211881U CN2464422Y CN 2464422 Y CN2464422 Y CN 2464422Y CN 01211881 CN01211881 CN 01211881 CN 01211881 U CN01211881 U CN 01211881U CN 2464422 Y CN2464422 Y CN 2464422Y
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- lip
- filter screen
- taper hole
- Prior art date
- 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.)
- Expired - Fee Related
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- Paper (AREA)
Abstract
The utility model relates to a filter screen with lip-shaped tapered holes, which is composed of a plurality of lip-shaped tapered holes which are punched on a basal plate. The utility model which overcomes the disadvantage existing in the previous filter screen with straight holes is used for a filtering type helical automatic discharging centrifuge. The utility model has the advantages of small filtration resistance, easy back flushing, long service life, etc. When in use, the utility model can not be blocked.
Description
The utility model belongs to a kind of screen pack that is used on the filtering type spiral self-emptying centrifuge.
Material in the filtering type spiral self-emptying centrifuge is under action of centrifugal force, on filter screen, roll, the size of frictional force is directly proportional with the size of coefficient of friction and separation factor, for the coefficient of reducing friction, require the plate mask that higher fineness is arranged, stop up filter opening, require cone angle ≮ 40 ° of taper hole in order to prevent material, dynamic balancing in order to guarantee to turn round requires the filter area between the part must not be variant.So conventional stamping-out net, mesh grid, welded mesh all can not adapt to this special requirement.Be straight hole owing to filter screen particularly, big, the difficult recoil of filtration resistance, easy obstruction and service life are short, need often change, and influence production efficiency.
The purpose of this utility model provides little, the easy recoil of a kind of filtration resistance, does not stop up, the lip taper hole filter screen of long service life.
Above-mentioned purpose of the present utility model realizes by following technical proposals, that is:
Lip taper hole filter screen is to offer a plurality of lip taper holes on substrate, and the working face fineness that substrate contacts with material is not less than
9, taper hole angle 〉=40 °, filter area is not less than 3%.
In order to prolong the service life of filter screen, in the slit of wear surface, leave the pre-damage district of 0.2mm root face, produce wearing and tearing even can guarantee filter screen like this, the size in filter screen slit can not change all the time.
For the dynamic balancing that guarantees to turn round, slit error ± 0.005mm.The line-spacing of lip taper hole, row have satisfied manufacturing technique requirent apart from all not having accumulated error.
The utility model is owing to be the lip taper hole, and wearing and tearing to a certain degree still can be used, thereby have improved service life, and in addition, resistance was little when the lip taper hole filtered, and easily recoil is cleaned, and does not stop up, and can guarantee the stability of producing to have improved production efficiency.
The not only alternative intake screen of the utility model for country saves foreign exchange, but also is given domestic development filtering type spiral self-emptying centrifuge, tryepan blue self-emptying centrifuge, and pulsation pusher self-emptying centrifuge provides critical component.
Fig. 1 is a kind of example structure schematic diagram of the present utility model, and Fig. 2 is the A-A view of Fig. 1.The utility model is described in further detail below in conjunction with Figure of description.
Lip taper hole filter screen is to determine a plurality of filter openings 2 in substrate 1 upper punch, and this filter opening 2 is that the upper end is the taper hole of lip, and leaves the pre-damage district of 0.2mm root face 3 in the slit of wear surface.
Claims (2)
1, lip taper hole filter screen comprises substrate (1), it is characterized in that at the last stamping-out of substrate (1) a plurality of upper ends being arranged is the lip taper hole (2) of lip.
2, lip taper hole filter screen according to claim 1 is characterized in that leaving 0.2mm root face (3) in the slit of wear surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211881 CN2464422Y (en) | 2001-02-28 | 2001-02-28 | Lip shape conic hole filter net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211881 CN2464422Y (en) | 2001-02-28 | 2001-02-28 | Lip shape conic hole filter net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2464422Y true CN2464422Y (en) | 2001-12-12 |
Family
ID=33631189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01211881 Expired - Fee Related CN2464422Y (en) | 2001-02-28 | 2001-02-28 | Lip shape conic hole filter net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2464422Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296156C (en) * | 2002-06-03 | 2007-01-24 | 维苏维尤斯·克鲁斯布公司 | Filter device for molten steel filtration |
| CN106914813A (en) * | 2017-03-27 | 2017-07-04 | 宁波工程学院 | A kind of water jet cavity-polishing device and method |
| CN106985081A (en) * | 2017-03-27 | 2017-07-28 | 宁波工程学院 | A kind of jet flow sand washing refines the device and method of hole wall |
-
2001
- 2001-02-28 CN CN 01211881 patent/CN2464422Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296156C (en) * | 2002-06-03 | 2007-01-24 | 维苏维尤斯·克鲁斯布公司 | Filter device for molten steel filtration |
| CN106914813A (en) * | 2017-03-27 | 2017-07-04 | 宁波工程学院 | A kind of water jet cavity-polishing device and method |
| CN106985081A (en) * | 2017-03-27 | 2017-07-28 | 宁波工程学院 | A kind of jet flow sand washing refines the device and method of hole wall |
| CN106914813B (en) * | 2017-03-27 | 2019-01-15 | 宁波工程学院 | A kind of water jet cavity-polishing device and method |
| CN106985081B (en) * | 2017-03-27 | 2019-09-06 | 宁波工程学院 | A kind of device and method of jet flow sand washing fine grinding hole wall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |