CN1029367C - Frame plate of filter press and die press process - Google Patents
Frame plate of filter press and die press process Download PDFInfo
- Publication number
- CN1029367C CN1029367C CN 90105507 CN90105507A CN1029367C CN 1029367 C CN1029367 C CN 1029367C CN 90105507 CN90105507 CN 90105507 CN 90105507 A CN90105507 A CN 90105507A CN 1029367 C CN1029367 C CN 1029367C
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- Prior art keywords
- filter plate
- filter
- boss
- plate
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- Expired - Fee Related
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- Filtration Of Liquid (AREA)
- Filtering Materials (AREA)
Abstract
The present invention relates to a filter plate of a filter press and a manufacturing process thereof. The present invention adopts the manufacturing process that ultrahigh molecular weight polyethylene resin, various auxiliary materials and auxiliary agents are directly placed into a die cavity of the filter plate for pressing forming, pressure maintaining and forming to obtain a finished product of the filter plate. The filter plate is s provided with a sealing boss, a supporting boss and continuous grooves; thus, the filter plate is capable of bearing large filtering pressure, has the advantages of good solid-liquid separation effect, easy manufacture, low production cost and reliable performance and can be used for the filter presses in ceramic industry, chemical industry, food industry, light industry, etc.
Description
The invention belongs to the filter press filter board technical field.
At present; the filter press that is used for solid-liquid two device for phase saparation in departments such as light industry, chemical industry and environmental protection; its strainer plate material kind is more; as cast iron; cast steel, cast aluminium, fiberglass, rubber, polypropylene and engineering plastics etc., some intensity is better in these materials, but weight is big; perishable, filtrate there be the possible of pollution.And the material weight that has is light, and resistance to corrosion is better, the price height.The intensity that has is lower, and the easy generation permanent deformation that has influences service life, and all fails to solve the problem that increases filter pressure raising solid-liquid separation effect on strainer plate material and structure.Chinese patent application numbers 87106060 discloses a kind of special-shaped filter press sheet frame and mould pressing process, and its weak point is to make to go up because of embedding metal material complicatedly, and it is not high to bear the filter pulp filter pressure, and solid-liquid separation effect is good inadequately.Chinese patent application numbers 89206757.8 provides the method that is embedded sealing ring on the filter plate, Chinese patent application numbers 88200832 provides improves contact area, increase the technical scheme of sealing effectiveness, they are all only studied from the sealing angle, and it is high and can not bear than big filter pressure, cause the imperfect key issue of solid-liquid separation effect still not solve filter plate intensity.
The object of the present invention is to provide a kind of in light weight, strainer plate material and manufacture craft that intensity is more high-new, filter-plate structure is improved, make good seal performance, can bear than big filter pressure simultaneously, make good effect of separating solid from liquid.
The strainer plate material that task of the present invention is achieved in that filter press, and adds various auxiliary agents commonly used, antioxidant, crosslinking agent and mixes through compression molding at 1,500,000 to 3,500,000 polyvinyl resin with super-high molecular weight with molecular weight.Die cavity is directly put in above-mentioned various powders mixing, earlier through colding pressing.The knot hot pressing of reburning keep-ups pressure then, the cooling back demoulding, required filter plate.Keep-up pressure 15 to 25MPa, the time of keep-uping pressure is 4 to 5 hours.Filter-plate structure is at filter plate periphery simultaneously seal boss to be arranged, and all can there be supporting boss on filter plate mid portion two sides, and the filter plate filtering surface is continuous groove, and groove is rectangular-shaped or trapezoidal shape.
The present invention obviously improves from the strainer plate material to the filter-plate structure.The material selection ultra high molecular polyethylene is equipped with the compression moulding of auxiliary material, has advantages such as in light weight, that intensity is high, wearability good, coefficient of friction is little.In addition, because seal boss and supporting boss are arranged, when filter plate was used in combination, the strain of seal boss made sealing property better, and supporting boss withstood mutually between filter plate was mutual, had increased the working strength of filter plate, can bear bigger filter pressure.And at filtering surface continuous groove is arranged, make good effect of separating solid from liquid.A compression moulding of filter plate, finishing can be used a little, need not carry out machine cut processing.Process for machining and manufacturing is easy, and cost is low, and serviceability is reliable.This filter plate can use on filter presses such as ceramic industry, chemical industry, light industry, food industry.
The square filter plate schematic diagram of Fig. 1 the present invention
The circular filter plate schematic diagram of Fig. 2 the present invention
The square filter plate side view of Fig. 3 the present invention
Fig. 4 filter plate periphery of the present invention seal boss partial schematic diagram
Fig. 5 filter plate groove of the present invention A-A schematic diagram
Below in conjunction with accompanying drawing the present invention is described in further detail, filter plate of the present invention system directly puts into the compression moulding of filter plate die cavity after with polyvinyl resin with super-high molecular weight powder (molecular weight is 1,500,000 to 3,500,000), auxiliary material and auxiliary agent, antioxidant, auxiliary antioxidant and crosslinking agent mixing, the filter plate die cavity can design according to required specification, shape, structure, accompanying drawing 1 of the present invention to accompanying drawing 3 is box filter plate, can also be molded into the filter plate of the shape of plate or frame, have bigger flexibility.Intensity and wearability in order to improve filter plate increase the service life, and can suitably improve poly molecular weight.The plastic compression temperature of general compacting powder can be controlled between 190 ℃ to 265 ℃, and keep-uping pressure is controlled between the 15MPa to 25MPa, and keeps this pressure 4 to 5 hours, makes the filter plate cooling shaping, need only repair on a small quantity by hand after the demoulding, can use.
The seal boss (1) of the periphery of this filter plate one side can be semicircle, half elliptic or rectangle, triangle, trapezoidal shape.Seal boss (1) is fitted in a time-out at filter plate, because every filter plate one side periphery is level and smooth, another side is for there being seal boss (1), last filter plate seal boss (1) is pressed on the level and smooth periphery of another piece filter plate, so analogize the assembling filter plate, at this moment seal boss (1) has a small amount of strain to play the effect of sealing ring, can cancel not the few filter plate supporting boss (2) of size, and to larger-size filter plate, at symmetric position place, two sides, filter plate middle part, supporting boss (2) is all arranged, its quantity determines that as required its shape can be circular, conical, square etc., adopt conical supporting boss (2) for being convenient in demoulding present embodiment, on every of the filter plate among Fig. 1 four supporting boss (2) are arranged all, when filter plate was assembled, the supporting boss of adjacent two filter plates (2) was close to the contact supporting mutually, can improve the stressing conditions of filter plate greatly, the filter plate life-span is prolonged, and the present embodiment filter plate can bear the about 2.0MPa of filter pulp filter pressure.The filtering surface of every filter plate all is covered with continuous groove (3).The cross section of groove (3) can be rectangle or trapezoidal.Adopt trapezoidal continuous groove for being convenient in demoulding.Solid-liquid separation efficiency to filter press also can be improved.
Claims (5)
1, a kind of filter press filter board is characterized in that the filter press filter board material is molecular weight at 1,500,000 to 3,500,000 polyvinyl resin with super-high molecular weight and is equipped with auxiliary material, and auxiliary agent is made, and filter plate structurally has seal boss, supporting boss and continuous groove.
2,, it is characterized in that the periphery of filter plate one side has seal boss (1) according to the described filter plate of claim 1.
3,, it is characterized in that two sides, filter plate middle part symmetric position all has supporting boss (2) according to the described filter plate of claim 1.
4,, it is characterized in that the filtering surface of filter plate is covered with continuous groove (3) according to the described filter plate of claim 1.
5, filter plate according to claim 4 is characterized in that groove (3) cross sectional shape of filter plate is a rectangle or trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105507 CN1029367C (en) | 1990-07-27 | 1990-07-27 | Frame plate of filter press and die press process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105507 CN1029367C (en) | 1990-07-27 | 1990-07-27 | Frame plate of filter press and die press process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1047982A CN1047982A (en) | 1990-12-26 |
| CN1029367C true CN1029367C (en) | 1995-07-26 |
Family
ID=4879321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90105507 Expired - Fee Related CN1029367C (en) | 1990-07-27 | 1990-07-27 | Frame plate of filter press and die press process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1029367C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101249328B (en) * | 2007-04-09 | 2010-05-26 | 杭州兴源过滤科技股份有限公司 | Controllable type constant temperature dissepiment strainer plate and forming method thereof |
| CN101676012B (en) * | 2007-04-09 | 2012-07-04 | 杭州兴源过滤科技股份有限公司 | Forming method of controllable type constant temperature dissepiment strainer plate |
| CN101249703B (en) * | 2007-04-09 | 2010-08-25 | 杭州兴源过滤科技股份有限公司 | Molding type diaphragm filtering plate and molding method |
| CN102114369A (en) * | 2010-12-31 | 2011-07-06 | 杭州兴源过滤科技股份有限公司 | Special nanometer diaphragm plate for press filter |
| CN102125777A (en) * | 2010-12-31 | 2011-07-20 | 杭州兴源过滤科技股份有限公司 | Special nano-filter plate for filter press |
| CN103272418B (en) | 2013-05-28 | 2015-08-05 | 佛山市金凯地过滤设备有限公司 | A kind of filter press |
| CN103272417B (en) * | 2013-05-28 | 2016-03-23 | 佛山市金凯地过滤设备有限公司 | Large scale filter press plate |
-
1990
- 1990-07-27 CN CN 90105507 patent/CN1029367C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1047982A (en) | 1990-12-26 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| 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 |