RU131644U1 - RUBBER FILTER FILTER MATERIAL - Google Patents

Abstract

A rubber-textile filter material based on a layer of twisted fibers impregnated with a rubber binder based on styrene-butadiene rubber latex connected to a layer of reinforcing synthetic mesh made in the form of a knitted fabric, contains a layer of elastic knitted fabric connected to it on one side, characterized in that it additionally contains a layer of tubular elastic knitwear with rubber crumb placed in it, connected to the other side of the elastic knitwear, while the knit lotno reinforcing synthetic mesh made from both knit yarns and elastomeric stretchability conventional yarns weave reversible platirovka interleaved through two wales.

Description

The utility model relates to filter materials for the purification of gases and liquids from mechanical impurities and can be used in chemical, petrochemical, engineering and other industries where high purification of a dispersed medium from mechanical particles is required.

Known rubber-textile material based on a layer of twisted fibers impregnated with a rubber binder, and having an inner layer consisting of a reinforcing synthetic mesh and a layer of twisted fibers, with a total material thickness of 2-7 mm

(A.S. USSR N 897568, B32B 25/2, 1982).

However, such a filter material does not provide high-quality cleaning.

The closest in essence is a rubber-textile filter material containing two layers of twisted fibers impregnated with a rubber binder based on styrene butadiene rubber latex, between which is a layer of reinforcing synthetic mesh, characterized in that the layer of reinforcing synthetic mesh is made in the form of a knitted fabric, and the filter material contains an additional layer of elastic knitwear connected to one of its sides.

(Russian Patent, RU No. 2126708, B01 D39 / 08, 1999). 'The reason that impedes the achievement of the required technical result is the low productivity and quality when filtering rubber-textile material due to poor regeneration of pores.

The objective of the utility model is to create a rubber-textile filter material, which allows to improve the quality and increase the productivity of the filtration process by reducing the regeneration time of the filter material.

When using the proposed filter material, the following technical result is obtained: the productivity of the filtration process is increased and the quality of cleaning the filtered medium is improved.

The technical result is achieved by the fact that the rubber-textile filter material, based on a layer of twisted fibers, impregnated with a rubber binder based on latex butadiene-styrene rubber, connected to a layer of reinforcing synthetic mesh made in the form of a knitted fabric, contains a layer of elastic knit connected to it on the one hand, additionally contains a layer of tubular elastic knitwear, with rubber crumb placed in it, connected to the other side of the elastic knitwear at the same time, a knit fabric of a reinforcing synthetic mesh, made of simultaneously knitted yarns of ordinary extensibility and elastomeric yarns by weaving cross over plating, alternating through 2 looped posts.

The use of elastic knitwear allows to reduce the permeability of the rubber-textile filter material during the filtration process and to increase the strength of the rubber plate during regeneration, which improves the quality of the filtration process and increases productivity by reducing the regeneration time.

The use of tubular elastic knitwear containing rubber crumb can improve the quality of filtration and increase productivity, as well as ensure the cleaning of the water surface from carbon-containing compounds.

The connection of a layer of elastic knitwear with a knitted fabric of a reinforcing synthetic mesh allows the use of elastic

material as a prefilter.

The connection of the other side of the elastic jersey with a layer of tubular elastic jersey containing crumb rubber allows you to clean the surface of the water from carbon-containing compounds.

The use of reinforcing synthetic mesh in the form of a knitted fabric allows to obtain a rubber-textile material with strength and longitudinally and transversely expanding pores, providing variable permeability of the material in the filtration and regeneration modes, which increases the durability of the filter material and the performance of the filtration process.

The use of cross over plating in the reinforcing mesh of a knitted weave increases the elongation of the filter material during the regeneration process.

The alternation of the plating loops through two loop columns in the structure of the knitted fabric of the reinforcing synthetic mesh increases the permeability in the filtering process.

In Fig.1 shows a section of a rubber-textile filter material, and in Fig.2 a graphic record of the interweaving of a knitted fabric of a reinforcing synthetic mesh.

Figure 1 shows a rubber-textile filter material, which consists of a layer 1 formed by a canvas of twisted fibers impregnated with a rubber binder based on styrene-butadiene rubber latex, layer 2 of a knitted fabric of a reinforcing synthetic mesh and layer 3 of elastic knit fabric connected to one from the sides of the knitted fabric reinforcing synthetic mesh, and the other side connected to the surface of the tubular elastic jersey 4 containing rubber crumb 5.

Figure 2 presents a graphic record of weaving a flip plating of a knitted fabric of a reinforcing synthetic mesh, which contains loops 6 of soil from a thread 7 of ordinary tensile properties and a plating, elastomeric thread 8 and loops 9, consisting of a thread of normal tensile 10 and broaches of elastomeric thread 11, alternating through 2 looped posts.

Rubber-textile filter material is made as follows. On a knitting machine, a fabric of synthetic yarns is knitted with a tension of 1.5-2.0 N and a cupping depth of 2.4-2.8 mm. The resulting knitted fabric is pressed with a canvas of twisted fibers and impregnated with a latex mixture based on butadiene-styrene latex, which provides a strong bond between the canvas and the knit to the rubberized material.

A knitted fabric of a reinforcing synthetic mesh is knitted by knitting two threads of soil and plating with alternation through two loop stitches, where an elastomeric thread is used as a plating thread

The elastic knitted fabric is knitted on a knitted machine with a round needle bar by simultaneously knitting inextensible and elastomeric threads. A rubber binder based on styrene-butadiene rubber latex is applied to the elastic fabric, dried in a drying chamber at a temperature of 120-125 ° C and connected to a knitted fabric of a reinforcing synthetic mesh using glue based on chloroprene rubber of the NT-N type, which ensures the extensibility of the filter material. The obtained rubber-textile filter material is blown with air at a temperature of 90-95 ° C under a pressure of up to 2 atm for 8-10 minutes, providing a cleaning of the pores of the adhesive composition and glue.

Knitted tubular fabric also knits on a knitting machine with a round needle bar with a tension of inextensible yarn 2.8-3.2 N, and elastomeric yarn 4.2-4.6 N.

The knitted tubular fabric is filled with rubber crumb, sizes 1-4 mm and connected to the surface of the elastic knitwear located on the surface of the rubber-textile material.

Rubber-textile filter material operates as follows. A rubber-textile material is installed in the filter unit, which is fixed at the edges with metal clips. In the process of filtering a dispersed medium, the filtered liquid or gas passes through the pores of an elastic knitwear, in which large mechanical particles are preliminarily retained. When liquid or gas passes through a rubber-textile material, smaller mechanical particles are retained. Hydrocarbon compounds located on the surface of the water are removed by swelling rubber crumb.

During the regeneration process, the rubber-textile filter material is stretched, as a result of which the permeability increases due to the stretching of the elastic knit loops and the increase in pores in the rubber-textile material, which allows the backflow of air to clean and remove mechanical particles from the filter material. To regenerate the additional layer, the rubber crumb located in the tubular jersey is completely replaced.

For experimental studies, samples of rubber-textile filter materials with a rubber plate thickness of 2, 4, 8 mm were used. As a filtered substance, used engine oil with a volume of 1.5 liters was used, at a working temperature of 90 ° C. Plates of various thicknesses were installed in the filter apparatus and the used engine oil was cleaned. The test results are shown in the table.

During testing of rubber-textile filter material, the cleaning process productivity increased by 8.6% due to the reduction of the regeneration time and the filtration quality increased by 10.5%.

The test data are shown in the table. Table Sample Thickness.m Temperature ⁰ C. Filter time. Regeneration time, s Filtration quality,% 100% delay, μm Prototype, 2-8 mm 90 580 180 86.8 6 Utility model, 2 mm thick. 90 490 154 89 5.8 4 mm. 90 525 168 90 5.8 8 mm. 90 560 172 92 5.5

Claims (1)

A rubber-textile filter material based on a layer of twisted fibers impregnated with a rubber binder based on styrene-butadiene rubber latex connected to a layer of reinforcing synthetic mesh made in the form of a knitted fabric, contains a layer of elastic knitted fabric connected to it on one side, characterized in that it additionally contains a layer of tubular elastic knitwear with rubber crumb placed in it, connected to the other side of the elastic knitwear, while the knit lotno reinforcing synthetic mesh made from both knit yarns and elastomeric stretchability conventional yarns weave reversible platirovka interleaved through two wales.

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