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Disc-type structured packing of polytetrafluoroethylene and its preparation method

A technology of polytetrafluoroethylene and structured packing, applied in chemical instruments and methods, chemical/physical/physicochemical processes, chemical/physical processes, etc., can solve problems such as enterprise loss and weak metal corrosion resistance

Inactive Publication Date: 2016-08-17
HANGZHOU LIJIU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the weak corrosion resistance of metals, especially the mass transfer of strong acidic substances, it is usually necessary to stop the machine to replace the packing after two or three months of use, which brings huge losses to the enterprise.

Method used

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  • Disc-type structured packing of polytetrafluoroethylene and its preparation method
  • Disc-type structured packing of polytetrafluoroethylene and its preparation method
  • Disc-type structured packing of polytetrafluoroethylene and its preparation method

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Embodiment Construction

[0085] The present invention will be further explained below in conjunction with the accompanying drawings.

[0086] This specific embodiment is only an explanation of the present invention and not a limitation of the present invention. Any changes made by those skilled in the art after reading the description of the present invention will be subject to the protection of the patent law as long as they are within the protection scope of the claims. Protect.

[0087] Such as Figure 1-2 As shown, the polytetrafluoroethylene corrugated plate is made of polytetrafluoroethylene regenerated powder through extrusion molding into a pipe, and then the pipe is turned to make; the pipe wall thickness of the pipe is the thickness of the corrugated plate, and the The body of the polytetrafluoroethylene corrugated board 10 has corrugations 101 regularly arranged at regular intervals with upward bulges and downward depressions, and several evenly distributed through holes 102; The included...

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PUM

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Abstract

The invention relates to a disc-type teflon structured packing and belongs to the technical field of a structured packing. The disc-type teflon structured packing comprises a body structure and a bound edge structure. The body structure is formed by overlapping several edge-on teflon corrugated plates. The bound edge structure is formed by banding the body structure with a teflon tension band. The corrugated plate provided by the invention can replace a metal corrugated plate in the prior art and is the basis for forming a teflon structured packing. As teflon has ultra-strong corrosion resistance, by the use of the teflon structured packing, downtime can be effectively prolonged, and it can be usually guaranteed that update is not required within three years. The disc-type teflon structured packing has remarkable economic benefit.

Description

technical field [0001] The invention relates to a structured packing, in particular to a polytetrafluoroethylene disk-type structured packing and a preparation method thereof. It belongs to the technical field of structured packing. Background technique [0002] Fillers generally refer to materials that are filled in other objects. In chemical engineering, packing refers to the inert solid material installed in the packed tower, its function is to increase the contact surface of gas-liquid, so that they are strongly mixed with each other. There are two kinds of dispersed packing and structured packing. Dispersed packings such as Pall rings and Raschig rings. Structured packing is a packing that is arranged in a certain geometric configuration and stacked neatly. There are many types of structured packing, which can be divided into grid packing, corrugated packing, pulse packing and so on according to their geometric structure. The corrugated packing is a disc-shaped pac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/30
Inventor 徐关兴熊国文
Owner HANGZHOU LIJIU TECH CO LTD