DE102004020848A1 - Filter sock with self-cleaning action, for removing dirt particles from liquid, e.g. lubricant or drinking water, comprising tubular filter layer of knitted fabric with attached wire reinforcement - Google Patents

Abstract

A filter sock for removing dirt particles from a liquid, hving a first tubular filter layer of knitted fabric, includes wire reinforcement attached to the first filter layer. An independent claim is included for a filter device including the filter sock, where the filter sock is located in a hollow profile (specifically a tube) with several radial openings.

Description

The prior art corresponds to shaping glass by the two-way overflow over a specially shaped stone to a wide band having parallel surfaces, as disclosed in US Pat. No. 5,173,160. This molded block is made of special refractory material and is molded in one piece as a whole. ( DE 1496441 )

The molded block is mounted at its ends, ie at the narrow end faces and is clamped between these bearing plates. In DE 1596403 made known. Due to the large distance between the bearing plates, the weight of the molded block and the high thermal stress, the demands on the flexural strength with increasing width of the glass ribbon ever larger and thus soon reaches the limits of technical feasibility. In addition, the molded brick must be very resistant to glass attack resistance.

aim the solution according to the invention to use it a shaped block, which consists of several stone segments exists and through the complete, all-round Covering with a special metallic alloy opposite the Glass attack protected is.

In 1 For better understanding, the molded block is shown in a 3D view without cladding and without kerfs. The glass enters ( 1 ) and flows over the pages ( 2 ) from both sides and vertically downwards.

To the molded block is made of individual segments with tongue and groove, being at the surface visible joints are characterized by a very narrow gap.

Of the Course of the joints is carried out so that through the joints no adverse effect on the glass quality occur can and on the sensitive parts of the molded block segments no mechanical stress peaks arise.

The joints run at an angle to the vertical of +/- 3 ° to +/- 75 ° accordingly 2 and 3 , The course of the joints ( 3 ) to 2 or 3 depends on the respective user-specific conditions. When executed after 3 the course of the joints to the vertical is optionally possible to the right or left.

The Molded stone segments are preferably without binders at the contact surfaces between put together the individual segments. With technological requirement can the contact surfaces with inorganic binders on an oxide ceramic basis or with a layer formed by a gel / sol bond provided become.

The storage of the stone takes place as in DE 1596403 shown, wherein the lines of force of the tension mainly in the region of the largest cross-section.

This molded block is made in its entirety with a thin sheet metal lining ( 4 ) 4 ) of a specific metal alloy, eg of platinum or of a platinum / rhodium alloy or of a layer of these alloys, which can be applied by vapor deposition, flame spraying, plasma spraying or other electrical and electrochemical processes. (In 4 viewed from the front side)

The Metal has one on the contact side with the glass for the process optimized structure. Roughness in the range of 1 to 30 A.

Between the metal cladding and the molded block, continuous joint-free plates of refractory material ( 5 ) can be arranged. ( 4 , viewed from the front side) This arrangement can be made optionally and depends only on the requirements of the user.

If a certain span is exceeded, the shaped block consisting of individual molded block segments may be additionally provided in the longitudinal direction in the region of the center of gravity with a body in the form of a tube, rod ( 6 ) or other geometric shapes made of molybdenum or high-temperature resistant metal. 5

The for the Absorption of mechanical forces provided metal insert serves to ensure that the molded block segments even little mechanical stress. The metal insert takes the occurring mechanical forces on. Metal insert and molded block form a single unit and are together with the metal alloy of the surface coating clad, so that the metal insert can not come into contact with the surrounding atmosphere.

Around to ensure this is between the molded block segments and the metal, preferably Platinum and / or a platinum alloy maintain a permanent vacuum.

Depending on the user-specific requirements, the metal insert can be cooled or heated ( 7 ) or be provided with both.

The coated molded block can be designed so that the glass flow from the end faces ( 8th ) is freely selectable or from above ( 9 ). 6

Claims (13)

Characterized in that a shaped block of individual segments accordingly 1 is shaped in such a way that glass can run over it on both sides and at the lower end the two glass streams combine to form an endless glass band with plane-parallel surfaces. Characterized in that the shaped block according to claim 1 is formed so that the surfaces of the individual segments at the contact planes run parallel to each other, ground flat and thus have a small gap width and down in an optimized angle between +/- 3 to +/- 75 °, so that a disturbance of glass quality can be excluded by these joints. Characterized in that the joints according to claim 2 so that they go from top to bottom in a fixed Angle in the direction of the bisector perpendicular to each other. The segment size and number is technologically required depending on the useful bandwidth of the Glass band freely selectable. Characterized in that the joints according to claim 2 could be like this, that they are slanted from top to bottom in one direction and parallel can run to each other. The segment size and number is a technological requirement depending on the useful bandwidth of the glass band freely selectable. Characterized in that the individual segments preferably without the use of binders, ie dry to each other be arranged and anchored and if necessary on a binder oxide ceramic base or connected on the basis of a gel / sol conversion can be. Characterized in that the flanks of the groove and spring according to claim 2 are optimized so that at the temperature increase on Process temperature no mechanical voltage peaks arise. Characterized in that the molded block in his Entity with a sheet or with a layer of high temperature resistant metal or metal alloy e.g. Platinum or platinum rhodium, the direct is applied by physical or chemical methods, gas-tight is enclosed. Characterized in that the molded block when exceeded of a certain critical length in the center of gravity in the longitudinal direction is provided with a cylindrical bore and into this bore a metal insert in the form of a tube, rod or other geometric Forms e.g. molybdenum or high heat resistant Metal is introduced to absorb the mechanical forces. Characterized in that the shaped block with metal tube according to claim 5 so with a sheet of preferably platinum rhodium or a metal coating applied by other methods gas-tight wrapped that the stone and the metal insert will not be oxygenated in touch can come. Characterized in that the metal shell is carried out in such a way that between the shaped brick and the metallic sheet metal jacket according to claim 6, a permanent vacuum can be secured. Characterized in that the surface of A metal casing according to claim 8 for the forming process, the preferably made of a platinum-rhodium alloy, on the The glass-coated side has been optimized with regard to the degree of roughness is and the roughness is in the range of 1 to 30 A. Characterized in that between the molded block segments and the platinum-rhodium cladding consistent in the perpendicular direction joint-free plates made of refractory material can be introduced. Characterized in that the shaped block according to claim 1 to 12 can be designed so that the glass flow from one can be realized on any front side or from above.