CN218475006U - Special filter cloth for titanium dioxide by chlorination process - Google Patents
Special filter cloth for titanium dioxide by chlorination process Download PDFInfo
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- CN218475006U CN218475006U CN202221992584.1U CN202221992584U CN218475006U CN 218475006 U CN218475006 U CN 218475006U CN 202221992584 U CN202221992584 U CN 202221992584U CN 218475006 U CN218475006 U CN 218475006U
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Abstract
The utility model discloses a filter cloth special for titanium dioxide by chlorination process, which is woven by warps and wefts; the main points of the overall technical scheme are as follows: the existing polypropylene monofilaments are changed into polyester multifilaments, so that the interception rate is high, the unloading is fast, and the breaking strength of the filter cloth is improved; the existing weaving mode is 1 upper and 1 lower plain weave, the surface of the filter cloth is smooth after high-temperature shaping and calendering, and the filter cloth is specially used for filtering titanium dioxide by a chlorination method, and completely replaces polypropylene filter cloth.
Description
Technical Field
The utility model belongs to the technical field of the pressure filter (patent classification number B01 denier 25/12), a dacron multifilament plain weave is applicable to the filter cloth that filters titanium white powder is related to.
Background
The filter press is a universal solid-liquid separation device and is widely applied to the industries of chemical industry, metallurgy, pharmacy, dye, food, brewing, ceramics and environmental protection. The filter cloth is a component of the filter press, and mainly has the functions of solid-liquid separation, solid-gas separation, and the performance of the filter cloth and the capability of realizing the solid-liquid separation under the conditions of no blockage and no damage, and directly influences the filtering effect of the filter press. The filter cloth is installed on the filter plate of pressure filter, and the cladding is in the filter plate both sides, and the filter cloth is compressed tightly to the filter plate frame during operation, forms airtight filter chamber between two adjacent filter cloths, and the material gets into the filter chamber through the pressure of charge pump, and the filter cloth holds back granule wherein and forms the filter cake, and filtrating is discharged by the pipeline through the filter plate goes out the liquid hole to realize solid-liquid separation's purpose.
An industrial filter cloth, which is a core filter element of a filter press and is woven by warps (lines parallel to a selvedge) and wefts (lines perpendicular to the selvedge); the knitting method (weave structure) includes: plain weave, twill weave, satin weave, non-woven needle-punched forming; the varieties of warp and weft are: monofilament (one yarn) and multifilament (one yarn composed of a plurality of fibers) of the type of long fiber, short fiber multifilament, and plied yarn (a yarn obtained by twisting two or more single yarns); the warp and weft are mostly made of synthetic fiber polypropylene, terylene, chinlon and the like; the filter cloth has different tissue structures, yarn types and materials, and thus has different performances. The performance of the filter cloth (including trapping, penetration, regeneration, physical and chemical properties and mechanical properties) determines the precision and filtration rate of solid-liquid separation, and also directly affects the production capacity and power consumption of the filtration equipment.
The existing titanium dioxide filter cloth by chlorination process has the following defects: the titanium dioxide powder has the advantages of low breaking strength, difficult unloading, short service time, low interception rate, no corrosion resistance, poorer thermal stability, easy aging at high temperature, frequent replacement of filter cloth, serious influence on the production of titanium dioxide powder and unfavorable promotion of the economic benefit of enterprises.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defect of current chlorination process titanium white powder filter cloth, solving corresponding technical problem, providing a special filter cloth of chlorination process titanium white powder.
The utility model provides an innovation technical scheme that prior art problem adopted is: a filter cloth special for titanium dioxide by chlorination process is woven by warps and wefts; the main points of the overall technical scheme are as follows: the existing polypropylene filament is changed into polyester multifilament so as to achieve the premise of high interception rate, corrosion resistance, high temperature resistance, high breaking strength and easy cake unloading; the weaving mode is improved to a 1-over-1-down plain weave weaving mode, and the filter cloth is expandedThe filter cloth has smooth surface after high-temperature shaping and calendaring, and the air permeability is 2L/m 2 About S, the filter is specially used for filtering titanium dioxide by a chlorination process, and the filter cloth completely replaces polypropylene filament filter cloth.
The specific design scheme of the filter cloth special for titanium dioxide by the chlorination method is as follows: the polyester filament multifilament is woven by polyester filament multifilament, and the warp yarn is 1300 denier twisted and has the density of 380 pieces/10 cm; the weft yarn is 1300 denier without twist, and the density is 80 pieces/10 cm; the cloth cover weave uses 1 upper 1 lower plain weave, namely, one circulation arrangement mode of the warp and the weft of the upper weave is that the warp is positioned at the upper layer 1 latitude of the weft, and the warp is positioned at the lower layer 1 latitude of the weft; the filter cloth woven by the yarns and the method has the air permeability of 2L/m 2 about/S, high interception rate, high warp and weft breaking strength of the filter cloth, toughness, durability, strong corrosion resistance, smooth surface after high-temperature shaping and calendering, quick unloading, high temperature resistance and prolonged service life of the filter cloth.
The utility model provides a pair of special filter cloth of chloride process titanium white powder has the interception rate height, unload fast, the fracture strength is high, corrosion-resistant, high temperature resistant, advantage such as long service life, not only satisfies pressure filter solid-liquid separation's needs, has still improved the production efficiency of chloride process titanium white powder trade.
Drawings
FIG. 1 is a pictograph of a special filter cloth pattern for titanium dioxide by chlorination process.
Fig. 2 is the utility model discloses a line structure schematic diagram of a special filter cloth of chlorination process titanium white powder.
Reference numerals: 1- -warp (warp), 2- -weft (weft).
Detailed Description
The following description is made of the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the filter cloth special for titanium dioxide produced by chlorination process, and the described embodiments are only preferred embodiments of the present invention, not all embodiments. All other embodiments, which are not inventive, are within the scope of the present invention and are made by those skilled in the art based on the embodiments of the present invention.
Example 1
A filter cloth special for titanium dioxide by chlorination method is woven by warp 1 and weft 2; the main points of the overall implementation scheme of the innovation are as follows: the existing polypropylene filament is changed into polyester filament multifilament so as to achieve the advantages of high interception rate, high breaking strength, long service life, corrosion resistance and high temperature resistance; the existing weaving mode is improved to a plain weaving mode with the weaving mode of 1 on 1, the temperature resistance of the terylene fiber is generally 130 to 150 ℃, and the terylene fiber has better acid resistance, wear resistance, corrosion resistance and recoverability. Specific embodiments are described in detail below:
the warp 1 is 1300 denier twisted terylene long fiber multifilament with the density of 380 pieces/10 cm; the weft 2 is 1300-denier untwisted polyester filament multifilament with the density of 80 yarns/10 cm; the filter cloth woven by the two yarns alternately has the advantages of corrosion resistance, high temperature resistance, wear resistance, high breaking strength, high interception rate, smooth cloth surface, high discharging speed and the like.
The plain weave mode is a 1-over-1-under weave mode, namely a circulating arrangement mode of warps 1 and wefts 2 is as follows: one circulation arrangement mode of the warp yarn 1 and the weft yarn 2 of the upper layer structure is that the warp yarn 1 is positioned at the upper layer 1 latitude of the weft yarn 2, and the warp yarn 1 is positioned at the lower layer 1 latitude of the weft yarn 2; the air permeability of the filter cloth is 2L/m 2 about/S, the surface is smooth after high-temperature shaping and calendering, the breaking strength is increased, and the service life is prolonged.
The weaving equipment used was: the multi-denier P1 heavy rapier loom can change the variety rapidly, and the tightness of the fabric is extremely high due to the super-strong beating-up force, so that the operation is simple and convenient, and the production efficiency is high.
Claims (1)
1. A filter cloth special for titanium dioxide by chlorination process comprises warp and weft; the method is characterized in that: the warp is 1300 denier twisted terylene multifilament with the density of 380 pieces/10 cm; the weft is 1300 denier untwisted polyester multifilament with the density of 80 pieces/10 cm; the cloth cover weave uses 1 upper 1 lower plain weave, namely a circulation arrangement mode of warp and weft of the upper layer weave is that the warp is positioned at the upper layer 1 weft of the weft, and the warp is positioned at the lower layer 1 weft of the weft; the air permeability of the filter cloth is 2L/m 2 /S。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221992584.1U CN218475006U (en) | 2022-08-01 | 2022-08-01 | Special filter cloth for titanium dioxide by chlorination process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221992584.1U CN218475006U (en) | 2022-08-01 | 2022-08-01 | Special filter cloth for titanium dioxide by chlorination process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218475006U true CN218475006U (en) | 2023-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221992584.1U Active CN218475006U (en) | 2022-08-01 | 2022-08-01 | Special filter cloth for titanium dioxide by chlorination process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218475006U (en) |
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2022
- 2022-08-01 CN CN202221992584.1U patent/CN218475006U/en active Active
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