CN100457426C - Filter with washing screen - Google Patents
Filter with washing screen Download PDFInfo
- Publication number
- CN100457426C CN100457426C CNB2005100176813A CN200510017681A CN100457426C CN 100457426 C CN100457426 C CN 100457426C CN B2005100176813 A CNB2005100176813 A CN B2005100176813A CN 200510017681 A CN200510017681 A CN 200510017681A CN 100457426 C CN100457426 C CN 100457426C
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- passage
- plate
- channel
- reciprocating plate
- filter
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a screen washing filter, which comprises the upper and lower plates layered mounted, wherein there is a feeding channel between the upper and lower plates; the combination between upper and lower plates has the reciprocal plate channel through to the feeding channel; the reciprocal plate with filter screen is mounted inside the channel; the reciprocal plate is connected to the power device; the middle of reciprocal plate has several sink grooves, mounted with filter screen; the reciprocal plate under the filter screen has material hole; the middle of lower part has the washing channel with one-way valve through to the feeding channel and the washing channel through to the reciprocal plate channel; the washing channel is connected to the power device; the upper parts of two ends of reciprocal plate channel are both arranged with discharge channels. The invention can realize online washing, repeated used filter screen, and high product quality.
Description
Technical field
The invention belongs to the filter technical field, particularly a kind of filter with washing screen that is installed on extruder downstream on the plastic products production line, is used for filtering raw material impurity and homogenizing material composition.
Background technology
In carrying out the plastic product process, be the impurity that exists in the elimination plastic raw materials, often one filter is set in the plastic extruder front portion.In use for some time, screen pack can be stopped up by impurity, need to shut down to clean, to change, and trivial operations, waste material are many.For addressing the above problem, Chinese patent application CN2429319Y discloses the reciprocating type machine net exchanging device of extruding of a kind of back scrubbing.Though this device can realize not shutting down the on-line cleaning filter screen, not influencing under the product quality premise back scrubbing materials flow very little, the monoblock filter screen only seldom part obtain cleaning, cleaning performance is relatively poor; Also must shut down when scrapping after in addition, middle filter screen uses repeatedly and change filter screen; Before and after the screen replacing, materials flow, pressure oscillation are big, and quality of item is poor.
Summary of the invention
The object of the invention is to provide a kind of filter with washing screen of not shutting down the on-line cleaning filter screen that can be completely achieved.
For reaching above-mentioned purpose, the present invention adopts following technical scheme: filter with washing screen, the upper plate, the lower plate that comprise superimposed installation up and down, be provided with blanking channel in the middle of the upper and lower plate, upper and lower plate joint portion is provided with the reciprocating plate passage that connects with blanking channel, and the reciprocating plate of band screen pack is installed in the reciprocating plate passage, reciprocating plate connects with actuating unit, reciprocating plate middle part upper surface has at least four deep gouges, and screen pack wherein is installed, and has material path on the reciprocating plate below the screen pack; Be provided with in the middle of the lower plate drawing of the band check valve that is communicated with blanking channel expect passage and with the reciprocating plate channel connection wash the material passage, it is suitable to wash material channel width and material path width, draw the material passage, wash the material passage and hold the material chamber and cross, holding the material chamber is connected with piston cylinder, piston in the piston cylinder is connected with actuating unit, and top, reciprocating plate passage two ends is provided with row and washes the material passage.
Upper plate is provided with the measuring pressure passage that is communicated with blanking channel, and pressure sensor wherein is installed, and pressure sensor is connected with control circuit.
Above the screen pack in the deep gouge of reciprocating plate middle part the filter screen trim ring is installed.
The present invention in use, reciprocating plate is delivered to the blanking channel place to filter screen under power drives, feed the high-pressure spray material to charging aperture, net filtration is flowed out by discharging opening after filtration.When the impurity in the stream material gradually during reciprocating plate left side first filter screen in the obstruction work, the blanking channel upper pressure raises, pressure sensor provides signal, drive the reciprocating plate segment distance that moves to left by being added to actuating unit on the reciprocating plate, the part participation work of the left side second filter screen, stream material pressure reduces.Each distance that moves is set on demand, is carried out by control system control.When the left side first filter screen arrives among Fig. 2 the position, under actuating unit drives, hold material chamber (piston cylinder) cavity and be full of the feed liquid of expecting passage of drawing that carries check valve.Start actuating unit and make piston binder upwards fast, because the effect of check valve, feed liquid can only upwards enter reverse (upwards, opposite with normal feed liquid flow direction) flushing filter screen of material path filter screen under, and the feed liquid of band impurity is washed the discharge of material hole by row.This moment, the filter screen trim ring can prevent that the filter screen quilt is towards taking off.This device only cleans the sub-fraction filter screen at every turn, and the flushing materials flow is big, and filter screen is rinsed well; Adopt the step-by-step movement draping, only change the sub-fraction of filter screen at every turn, the fluctuation of major ingredient flowing pressure is little, and the quality of item of production is stable.When feed pressure raise once more, filter can repeat above-mentioned action, and two filter screens are cleaned fully and shift out outside the machine up to the left side, as the segment distance of advancing left again of reciprocating plate among Fig. 3.The reciprocating plate actuating unit oppositely pushes back reciprocating plate then, and the right side filter screen can be cleaned successively.When filter screen is used repeatedly repeatedly, in the time of can not re-using, can outside machine, not shut down and change whole filter screens piecewise.
From said process as can be seen, the present invention can be under not shutdown situation on-line cleaning, change whole filter screens, filter screen cleans fully, can use repeatedly; Pressure oscillation is little, stable production process, product quality height; Easy to operation.
Description of drawings
Fig. 1 is the invention structural representation;
Fig. 2, Fig. 3 are schematic diagram in the reciprocating plate progressive process;
Fig. 4 removes vertical view behind the upper plate for the present invention.
The specific embodiment
Embodiment, filter with washing screen, the upper plate 2, the lower plate 9 that comprise superimposed installation up and down are provided with blanking channel 3,12 in the middle of upper plate 2, the lower plate 9, and upper plate 2 is provided with the measuring pressure passage 20 that is communicated with blanking channel 3, pressure sensor 4 wherein is installed, and pressure sensor 4 is connected with control circuit.Upper and lower plate joint portion is provided with the reciprocating plate passage that connects with blanking channel, and the reciprocating plate 8 that connects with actuating unit is installed in the passage.Reciprocating plate 8 middle part upper surfaces have 5, four screen packs 7 of four deep gouges and are installed on respectively wherein, and filter screen trim ring 6 is installed above the screen pack 7.Have material path 19 on the reciprocating plate 8 below the screen pack 7.Be provided with in the middle of the lower plate 9 with blanking channel 12 levels that be communicated with, band check valve 11 and draw material passage 13 and expect passage 17 with vertical the washing of reciprocating plate channel connection, draw material passage 13, wash material passage 17 and vertically hold material chamber 16 and cross, the piston 15 that holds in the material chamber 16 is connected with piston cylinder 14, and piston cylinder 14 is connected with control circuit.Top, reciprocating plate passage two ends is provided with row and washes material passage 1.In view of all parts among Fig. 1 label, each parts label omits among Fig. 2,3,4.
Claims (3)
1, filter with washing screen, the upper plate, the lower plate that comprise superimposed installation up and down, be provided with blanking channel in the middle of the upper and lower plate, upper and lower plate joint portion is provided with the reciprocating plate passage that connects with blanking channel, and the reciprocating plate of band screen pack is installed in the reciprocating plate passage, it is characterized in that, reciprocating plate connects with actuating unit, reciprocating plate middle part upper surface has at least four deep gouges, and screen pack wherein is installed, and has material path on the reciprocating plate below the screen pack; Be provided with in the middle of the lower plate drawing of the band check valve that is communicated with blanking channel expect passage and with the reciprocating plate channel connection wash the material passage, it is suitable to wash material channel width and material path width, draw the material passage, wash the material passage and hold the material chamber and cross, holding the material chamber is connected with piston cylinder, piston in the piston cylinder is connected with actuating unit, and top, reciprocating plate passage two ends is provided with row and washes the material passage.
2, filter with washing screen as claimed in claim 1 is characterized in that, upper plate is provided with the measuring pressure passage that is communicated with blanking channel, and pressure sensor wherein is installed, and pressure sensor is connected with control circuit.
3, filter with washing screen as claimed in claim 2 is characterized in that, above the screen pack in the deep gouge of reciprocating plate middle part the filter screen trim ring is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100176813A CN100457426C (en) | 2005-06-14 | 2005-06-14 | Filter with washing screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100176813A CN100457426C (en) | 2005-06-14 | 2005-06-14 | Filter with washing screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1880047A CN1880047A (en) | 2006-12-20 |
| CN100457426C true CN100457426C (en) | 2009-02-04 |
Family
ID=37518506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100176813A Expired - Fee Related CN100457426C (en) | 2005-06-14 | 2005-06-14 | Filter with washing screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100457426C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201454232U (en) * | 2009-07-30 | 2010-05-12 | 王振保 | Built-in back washing purifying device |
| CN101912702B (en) * | 2010-08-20 | 2012-10-03 | 广东联塑科技实业有限公司 | Online cleaning filter |
| EP3393752B1 (en) * | 2015-12-22 | 2021-02-17 | Basf Se | Extruder with slidable breaker plate |
| CN109758809B (en) * | 2019-03-14 | 2021-09-07 | 义乌市万博创意设计有限公司 | Self-changing water purifier |
| CN109758814B (en) * | 2019-03-14 | 2021-07-06 | 东阳市善水环境工程有限公司 | Front-mounted water purifier |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2140375Y (en) * | 1992-11-19 | 1993-08-18 | 王振保 | Net changing device of plastic silk drawing machine |
| CN2166939Y (en) * | 1993-07-06 | 1994-06-01 | 王振保 | Device for changing screen for extrusion machine during working period |
| CN2429319Y (en) * | 2000-07-14 | 2001-05-09 | 潘应亮 | Net replacing device for reversal washed reciprocal extruding apparatus |
| CN2567024Y (en) * | 2002-11-23 | 2003-08-20 | 汕头市奇佳机械厂有限公司 | Quick net changing device of sheet extruder |
-
2005
- 2005-06-14 CN CNB2005100176813A patent/CN100457426C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2140375Y (en) * | 1992-11-19 | 1993-08-18 | 王振保 | Net changing device of plastic silk drawing machine |
| CN2166939Y (en) * | 1993-07-06 | 1994-06-01 | 王振保 | Device for changing screen for extrusion machine during working period |
| CN2429319Y (en) * | 2000-07-14 | 2001-05-09 | 潘应亮 | Net replacing device for reversal washed reciprocal extruding apparatus |
| CN2567024Y (en) * | 2002-11-23 | 2003-08-20 | 汕头市奇佳机械厂有限公司 | Quick net changing device of sheet extruder |
Non-Patent Citations (2)
| Title |
|---|
| 塑料挤出机自动换网技术的进展. 姚祝平.塑料，第29卷第2期. 2000 |
| 塑料挤出机自动换网技术的进展. 姚祝平.塑料，第29卷第2期. 2000 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1880047A (en) | 2006-12-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ZHENGZHOU CITY ANJI CHEMICAL PLASTIC MACHINERY FACTORY Assignor: Wang Zhenbao Contract record no.: 2010410000091 Denomination of invention: Filter with washing screen Granted publication date: 20090204 License type: Exclusive License Open date: 20061220 Record date: 20100812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |