Non-woven fabric production device for air filtration and using method

Abstract

The invention relates to the technical field of nanofiber non-woven fabrics, in particular to a non-woven fabric production device for air filtration and a using method. The production device comprises an air bag, a cylindrical receiving device, a cover, a rotating shaft, a spinning barrel, a driving device, an electronic air pump, a liquid supply device, a reciprocating telescopic device and a high-voltage electrostatic generator; the air bag is arranged in the spinning barrel, and the spinning barrel is matched with the air bag to form an annular cavity with the variable volume; a plurality of spinning micropores are evenly formed in the wall of the upper portion of the spinning barrel in a penetrating mode, and no spinning micropores are formed in the wall of the lower portion of the spinning barrel; and the reciprocating telescopic device is arranged on the outer side wall of the cylindrical receiving device. Compared with the prior art, the production device can provide airbag extrusion force for the spinning solution to assist spinning, the annular cavity is filled with the spinning solution all the time, the spinning efficiency and the spinning continuous stability are improved, and the prepared non-woven fabric is larger in area and higher in strength.

Description

technical field [0001] The invention relates to the technical field of nanofiber non-woven fabrics, in particular to a non-woven fabric production device and use method for air filtration. Background technique [0002] With people's emphasis on health and the intensification of air pollution, environmental protection has become a topic of concern, and air purification has become an important aspect of environmental protection. Products with filtering functions such as anti-smog masks, air purification filters, and anti-smog windows have been widely used. The performance of the filter material directly determines the final performance of these products. In recent years, nanofiber nonwovens have attracted more and more attention from researchers. The nanofibers in the nanofiber non-woven fabric are extremely fine, and have the properties of high filtration precision and good air permeability. It is prepared into a mask, which will not cause stuffiness and suffocation when wo...

AI Technical Summary

Problems solved by technology

However, the device still has the following problems: 1. As the spinning continues, the spinning solution in the annular solution tank will be continuously consumed, and gradually the micropores on the top of the cylindrical shell will not participate in the spinning process, which not only Part of the spinning efficiency is lost, and the distribution of nanofibers received on the outer cylindrical receiving device is uneven, so that the thickness of the final nanofiber non-woven fabric is uneven; 2. After the spinning solution in the annular solution tank is continuously consumed, The spinning solution cannot fill the entire annular area, which will easily cause the spinning solution to shake or form a vortex during the rotation process, which will affect the continuous and stable spinning; 3. After filling the spinning solution in the annular solution tank, if the spinning solution needs to be suspended midway If it is spinning, the spinning solution may seep out from the micropores on the side of the cylindrical shell, and cannot be temporarily stored in the annular solution tank stably; Inertia and unable to stop in time, there is still a part of the spinning solution being thrown out of the micropores, and due to the gradual decrease of the centrifugal force, the thickness of the fiber produced at this stage will be different from that of normal spinning, and may cause partial spinning 5. After spinning, the spinning liquid remaining in the spinning micropores may cause blockage after drying. When the spinning micropores are blocked, Not easy to clean

In addition, in the electrospinning device including the three patent documents mentioned above, when the nanofiber nonwoven fabric is prepared, the nanofibers formed by the same spinneret hole are collected in a specific small range of the collection device, and the nanofiber The size of the fiber non-woven fabric is limited by the distribution of the spinneret holes

At the same time, this receiving method is not conducive to the improvement of the strength of non-woven fabrics.

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