CN202569799U - Non-woven filter cloth - Google Patents
Non-woven filter cloth Download PDFInfo
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- CN202569799U CN202569799U CN 201220218640 CN201220218640U CN202569799U CN 202569799 U CN202569799 U CN 202569799U CN 201220218640 CN201220218640 CN 201220218640 CN 201220218640 U CN201220218640 U CN 201220218640U CN 202569799 U CN202569799 U CN 202569799U
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- filter cloth
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- filter
- nonwoven
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Abstract
The utility model discloses non-woven filter cloth, which is characterized in that: the filter cloth consists of a supporting layer and a filtering layer, wherein the supporting layer has a woven net structure formed by weaving warps and wefts; and the filtering layer has a non-woven fabric structure molded by prickling. In a manufacturing method of the non-woven filter cloth, a non-woven fabric formed by prickling and a woven net formed by weaving warps and wefts are combined into a whole through a prickling process and equipment, so that novel filter cloth is constructed. Meanwhile, the surface of the non-woven fabric of the filtering layer is calendered or sintered, so that the surface is smooth, flat and firm, and a filter cake can be removed smoothly. Due to the adoption of the filter cloth, the contradictions and problems of low filtering efficiency, easiness in deforming, insufficient strength of single non-woven filter cloth and easiness in damaging existing in the conventional single woven filter cloth are solved, the filtering efficiency is greatly increased, and the working pressure difference of a filtering system is lowered; and the non-woven filter cloth can be widely applied to liquid/solid separation, purification and recovery.
Description
Technical field
The utility model relates to a kind of nonwoven filter cloth; Especially, Gu the utility model relate to mining that the mineral resources industry improves the resource recycling rate with ore dressing, altogether, the sorting extraction of associated minerals, industrial fluids liquid/separate and material purification or reclaim required filter cloth.
Background technology
At present, industrial woven and nonwoven textile fabric filter cloth are widely used in mining, ore dressing, the dehydration of mineral resources industry; Gu in the filtration operation of the sorting extraction of associated minerals altogether,, coal washing, oil plant PETROLEUM PROCESSING, industrial fluids liquid/separation, material purification or recovery.And used Woven filter cloth mostly is the conventional Woven filter cloth of being processed by chemical fibre or natural fiber on the industrial filter, and a spot of nonwoven acupuncture filter cloth of being processed by chemical fibre or natural fiber is also arranged.
The filtering material of ideal structure must have following condition: (1) porosity is high; (2) filter efficiency is high; (3) filtration resistance is little, and the pressure loss is low; (4) enough intensity is arranged, dimensionally stable, wearability is good.But; Because woven chemical fibre filter cloth or natural fiber filter cloth are in its manufacture process and technology; What adopt is the staggered woven mode of warp thread and weft yarn; The porosity control of its filtration is to lean on the fiber number of warp thread and weft yarn and warp thread and the staggered density of weft yarn to realize; And; The cross-point of warp thread and weft yarn has formed comprehensive equally distributed intertwined point or slit on the filter cloth surface, make be filtered composition granule very easily in frequent filtration operation process in these intertwined points or the slit assemble gradually and accumulate, make that the filter cloth hole diminishes, is difficult for unloading that cake, filter cloth stop up, filtered fluid input system pump pressure increases, filter efficiency reduces, the filter cloth replacement cycle shortens, filter cloth reduces, causes filter cloth user side production efficiency to descend and the production cost rising service life.Wherein, the obstruction of filter cloth is a main cause that causes the filter cloth permeability rate not high.Also have, the nonwoven acupuncture filter cloth of being processed by chemical fibre or natural fiber is because the three-dimensional structure advantage of itself; It is very high in filtration work, to have filter efficiency, the advantage that the pressure reduction of filtration system is very little, still; The intensity of this nonwoven filter cloth is extremely low, and service life is very short.And up to now, Gu still fail to propose good solution with filtration art in the liquid/separation of industrial fluids.
Summary of the invention
Based on above-mentioned technical problem, a kind of filter cloth need be provided, this filter cloth had both had the sturdy and durable performance of Woven filter cloth, had the filter effect efficiently of nonwoven acupuncture filter cloth again; This filter cloth should integrate all advantages of Woven filter cloth and nonwoven acupuncture filter cloth, and abandon they self intrinsic shortcoming.For realizing above-mentioned purpose, the utility model provides a kind of nonwoven filter cloth.
One side according to the utility model is characterized in that: said nonwoven filter cloth is made up of double-layer structure, that is: supporting layer and filter course.Its supporting layer is the woven net structure that longitude and latitude interweaves.Its filter course then is the nonwoven fabric construct of acupuncture moulding.
Described a kind of nonwoven filter cloth is characterized in that: said filter cloth is the filter cloth that is combined into one through the woven net that needling process and equipment interweave the nonwoven and the longitude and latitude of acupuncture moulding.
Described a kind of nonwoven filter cloth is characterized in that: calendering or sintering processes are carried out in the surface of the filter course nonwoven of said filter cloth, make its smooth surface, smooth, firm.
Described a kind of nonwoven filter cloth is characterized in that: the raw material of the filter course nonwoven of said filter cloth is a textile fabric.
This shows that in the technique scheme according to the utility model, the surperficial nonwoven acupuncture filter course of said filter cloth is being born filtration, and, after its surface process calendering or the sintering processes, make that the filtration working face is smooth, smooth and firm.So, guaranteed the filtration porosity that requires, improved filter efficiency, reduced the pressure differential of filtration system that filter the work mask has and smoothly and smooth make that to unload cake smooth in addition.The woven net structure that interweaves as the longitude and latitude of supporting layer then makes described filter cloth have desired sufficient intensity, and can deform hardly.
This novel filter cloth has solved that single in the past Woven filter cloth filter efficiency is not high, easy deformation and single nonwoven filter cloth insufficient strength, be easy to damaged a contradiction and a difficult problem.This novel filter cloth compares to the filter cloth that generally uses at present, has improved filter efficiency greatly admittedly, reduced the filtration system operting differential pressure, can be widely used in liquid/separations in the industries such as mine, metallurgy, chemical industry, pharmacy, food, coal washing, sewage disposal, in material purification and the recovery operation.
Aspect that the utility model is additional and advantage part in the following description provide, and part will become obviously from the following description, or recognize through the practice of the utility model.
Description of drawings
Above-mentioned and/or additional aspect of the utility model and advantage are from obviously with easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
The sketch map of the filter cloth of an embodiment of Fig. 1 the utility model;
The filter cloth schematic rear view of an embodiment of Fig. 2 the utility model;
The specific embodiment
Describe the embodiment of the utility model below in detail, the example of said embodiment is being attached shown in Fig. 1 and 2.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the utility model, and can not be interpreted as restriction the utility model.
In the utility model, a kind of nonwoven filter cloth is provided, described filter cloth is made up of double-layer structure, that is: supporting layer (2 ' in the accompanying drawing 1) and filter course (4 in the accompanying drawing 1).Its supporting layer is the woven net structure (1 shown in accompanying drawing 2 in the accompanying drawing 2 is warp-wise, and 2 in the accompanying drawing 2 is broadwise) that longitude and latitude interweaves.The woven net supporting layer that this longitude and latitude interweaves only plays the effect of support and reinforcement, thereby the density that its longitude and latitude interweaves is as much as possible little under the prerequisite that guarantees support and reinforcement effect.That is to say the woven net supporting layer the order number (unit are endoporus purpose quantity, for example: 20 orders/cm
2) more little good more under the prerequisite that guarantees support and reinforcement effect.So not only can save raw material; The more important thing is when can combine with its acupuncture to be that the pricker operation is reserved enough acupuncture spaces for the filter course of the nonwoven fabric construct of acupuncture moulding; In order to avoid warp or the parallel of thorn pinprick to the supporting layer fabric causes broken needle or pricks warp or the parallel on the disconnected supporting layer fabric.Because be the combining of supporting layer and filter course the material of these two structures to be combined as a whole through needling process and equipment.Shown in 4 in the accompanying drawing 1; The filter course middle short fiber of the nonwoven fabric construct of acupuncture moulding is under the effect of continuous needle; Tangle in the areal extent of whole filter cloth with warp or parallel on the supporting layer fabric, winding, adhesion or be entangled with; Consequently the fabric of two structures of envoy fits together tightly, and then has formed an integral body.
Its filter course of described filter cloth then is the nonwoven fabric construct of acupuncture moulding.After supporting layer and these two fabrics of filter course being closely as one, with calender the working surface of filter course being carried out calendering again and handle, in the hope of obtaining the working surface (shown in 3 in the accompanying drawing 1) of smooth through needling process.Also can adopt the technology of filtering the working surface sintering to reach this requirement.Adopt the produced novel filter cloth of this method greatly to increase air penetrability and permeation rate; Permeable resistance is littler; The filtration work period is shortened significantly, and required energy consumption also so greatly reduces, and is simple to operate; Dependable performance is Gu can be widely used in liquid/separation in the industries such as mine, metallurgy, chemical industry, light industry and food, filtration, dehydration, material purification and the recovery operation.
Need to prove; In above-mentioned technical scheme, can be with using according to the filter cloth of the utility model in industries such as oil, chemical industry, ore dressing, sewage disposal, sugaring, pharmacy on the flame filter press in the liquid-solid separation of needs, dehydration, the purification processing flow process, box filter, upright disk filter, the horizontal belt filter etc.The protection domain of the utility model is not limited on the above-mentioned filter of enumerating thus, but can be applied to any needs on any filter that filter cloth filters industrial fluids.The utility model has carried out the test of examination property after implementing to finish, and through certification test, has obtained the good result of expection.
The above is merely the preferred embodiment of the utility model, is not the utility model is done any pro forma restriction.The those of ordinary skill of all industry, but all shown in the by specification accompanying drawing and the above, implement the utility model swimmingly.But, allly be familiar with the professional and technical personnel, do not breaking away from the utility model technical scheme scope, the technology contents that is disclosed more than capable of using and a little change of making, modify the equivalent variations with differentiation, be the equivalent embodiment of the utility model; Simultaneously, all essence technology according to the utility model to the change of any equivalent variations that above embodiment did, modify with differentiation etc., all still belong to the scope of the technical scheme of the utility model.
Claims (3)
1. nonwoven filter cloth, it is characterized in that: said filter cloth is made up of supporting layer and filter course, and said supporting layer is the woven net structure, and filter course is a nonwoven fabric construct.
2. a kind of nonwoven filter cloth according to claim 1 is characterized in that: said filter cloth is the filter cloth that is combined into one through the woven net that needling process and equipment interweave the nonwoven and the longitude and latitude of acupuncture moulding.
3. a kind of nonwoven filter cloth according to claim 1 is characterized in that: calendering or sintering processes are carried out in the surface of the filter course nonwoven of said filter cloth, make its smooth surface, smooth, firm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220218640 CN202569799U (en) | 2012-05-05 | 2012-05-05 | Non-woven filter cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220218640 CN202569799U (en) | 2012-05-05 | 2012-05-05 | Non-woven filter cloth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202569799U true CN202569799U (en) | 2012-12-05 |
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ID=47239256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220218640 Expired - Fee Related CN202569799U (en) | 2012-05-05 | 2012-05-05 | Non-woven filter cloth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202569799U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381315A (en) * | 2012-05-05 | 2013-11-06 | 辽宁天泽产业集团纺织有限公司 | Manufacture method for nonwoven filter cloth |
| CN104399320A (en) * | 2014-12-16 | 2015-03-11 | 山东浩珂矿业工程有限公司 | Repairing method of filter cloth of filter plate type filter press |
| CN107646536A (en) * | 2017-09-29 | 2018-02-02 | 浙江天台华宇工业用布有限公司 | A kind of embedded filter cloth and its production technology |
-
2012
- 2012-05-05 CN CN 201220218640 patent/CN202569799U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381315A (en) * | 2012-05-05 | 2013-11-06 | 辽宁天泽产业集团纺织有限公司 | Manufacture method for nonwoven filter cloth |
| CN104399320A (en) * | 2014-12-16 | 2015-03-11 | 山东浩珂矿业工程有限公司 | Repairing method of filter cloth of filter plate type filter press |
| CN104399320B (en) * | 2014-12-16 | 2016-08-17 | 浩珂科技有限公司 | A kind of method for repairing and mending of filter board type canvas press cloth |
| CN107646536A (en) * | 2017-09-29 | 2018-02-02 | 浙江天台华宇工业用布有限公司 | A kind of embedded filter cloth and its production technology |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20210505 |