Stainless steel filter element used in rolling mill backwashing filtration system and manufacturing method thereof

Abstract

The invention discloses a stainless steel filter element used in a rolling mill backwashing filtration system and a manufacturing method thereof. The stainless steel filter element has the advantagesof long service life, large filtration flow and high precision. The adopted technical scheme is as follows: a filter element rod body is of an inverted T-shaped structure as a whole, the upper end ofthe vertical cylinder of the filter element rod body is provided with an external thread, a yellow sponge plate sleeves the vertical cylinder of the filter element rod body, a gasket is arranged on the upper end of the yellow sponge plate, a nut is arranged on the upper end of the gasket, the nut can be screwed onto the external thread of the filter element rod body in a matching manner, the gasket is pressed to the yellow sponge plate through the nut, a filter element rod of the filter element rod body is of an integrally formed stainless steel structure, the surface of the filter element rodis provided with multiple holes, a threaded rod is inserted into the upper end of the filter element rod, the threaded rod is of an external thread structure, an inner hexagonal gasket is embedded inthe lower end of the filter element rod, the cross section of the inner hexagonal gasket is omega-shaped, and the inner hexagonal gasket can be embedded in the lower end of the filter element rod ina matching manner. The stainless steel filter element used in the rolling mill backwashing filtration system and the manufacturing method thereof can be widely applied in the field of stainless steelfilter elements.

Description

Technical field [0001] The invention discloses a stainless steel filter element used in a backwash filter system of a rolling mill and a manufacturing method thereof, belonging to the technical field of stainless steel filter elements. Background technique [0002] At present, the backwash filter system of the rolling mill adopts the inner rod of the filter element to be made of plastic material, which has low strength, and when the plastic and the metal chassis are screwed and fixed, it is easy to break or wear the screw thread, causing damage, poor sealing, and unable to be reused. It is disposable. [0003] Since the filter tank is composed of five layers of filter discs, the highest and lowest surfaces of each filter disc must be kept at a certain distance. The plastic is externally threaded, and the external thread will increase this distance, thereby increasing the height of the entire filter tank, leading to increased costs . Summary of the invention [0004] The invention o...

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Problems solved by technology

[0002] At present, the backwash filter system of the rolling mill uses plastic material for the inner rod of the filter element, which has low strength, and when the plastic and the metal chassis are threaded and fixed, it is easy to break or wear the thread, causing damage, poor sealing, and cannot be reused. It is a one-time use

[0003] Since the filter tank is composed of five layers of filter discs, a certain distance should be maintained between the highest surface and the lowest surface of each filter disc. The plastic uses external threads, and the external threads will increase this distance, thereby increasing the height of the entire filter tank, resulting in increased costs.

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