CN1100662A

CN1100662A - Magnetic dust-proof gauze mask

Info

Publication number: CN1100662A
Application number: CN 92111280
Authority: CN
Inventors: 史风柏
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-09-30
Filing date: 1992-09-30
Publication date: 1995-03-29
Anticipated expiration: 2007-09-30
Also published as: CN1042398C

Abstract

The magnetic dust-proof mash is comprised of filter cloth, seal ring, permanent magnet sheets and frame, the magnet sheets are arranged with same polarity inwards or outwards, as compared with existing mask, it solves the problem of pollution due to cancinogenic and toxic metallic microdust, the present product features simple structure and high effect.

Description

Magnetic dust-proof gauze mask

The invention belongs to the articles for labour protection technical field, relate to a kind of individual dustproof magnetic mask that is used for.

Dust hazard in the production and construction makes tens million ofly to meet dirt worker's 1/10th and suffer from various degree pneumoconiosis.Country is used for the medical expense of pneumoconiosis every year up to several hundred million units.Some branch of industry is because of the pneumoconiosis death toll even be higher than the dead sum of industrial injury.Prove that now magnetic micronic dust (comprising dust and flue dust) also has more serious harm to human body, as iron laden dust (Fe ₂O ₃) be strong carcinogenic substance, can be lung cancer caused; The concentration of nickel powder dirt reaches 0.4～5.1mg/mg, can cause nasal sinus cancer; Draw excessive cobalt powder dirt and can bring out cardiomyopathy, carbide alloy disease etc.Open a mine, ore dressing, smelt, in the industries such as processing, mill steel, welding, casting, the harm of dust is particularly outstanding, and in all kinds of dust, and is again with the metal micronic dust below 5 microns, the most serious to the harm of human body.It is how 10 times of expection that nickel is smelted workman's lung cancer morbidity rate, and it is 100～300 times of ordinary people that the nasal sinus cancer incidence of disease is competed! Development along with building cause, improvement to dust hazard more and more seems important with protection, in the also incomplete production division of some dust guard pollution abatement equipments, the new development township enterprise of getting up particularly, more need to strengthen docking dirt worker's individual protection, country proposes, and adopt vigorous measures, prevent and solve the serious harm that all kinds of dust, especially metal micronic dust bring to people.

From since the dawn of human civilization, be to continue to use the mode of wearing mouth mask to solve to the method for individual protection dust hazard always.The metal mesh type mouth mask just appearred in the U.S. before more than 100 years, but had gone up since a century, all was to reach the purpose that purifies inhaled air by dust removal by filtration in order to individual dustproof mode.The effect of dust removal by filtration is dwindled and is improved with the filtrate mesh, but respiratory resistance is with the dwindling and increase of filtrate mesh simultaneously, and therefore, dwindle and the raising of dust proof rate of filtrate mesh all can only be arrived certain limit.The multilayer gauze is done filtrate and has been continued to use much year for a long time, and people also always obtain working hard aspect the better filtrate trying hard to simultaneously.For example the forties once adopted moving, plant, mineral fibres does filtrate, such filtrate can not filter the dust below 5 microns.The fifties has been developed the superfine synthesized fiber filtrate abroad, and dustproof effect is better, and China has also adopted the nonwoven of static electrification and the knitting filtrate of the chemical fibre filter cloth as anti-dust respirator after having abolished the anti-dust respirator of doing filtrate with gauze.But, the dust proof rate of filtering type anti-dust respirator and the contradiction between the respiratory resistance are can't be only to be solved from the innovation of filtrate, especially below 5 microns, about 1 micron to the most serious metal micronic dust of human body harm, can't it be removed by the mode of filtering especially.In fact, explanation according to the medical science aspect, even the dust of coarsegrain is inhaled into people's lung body, by the self-cleaning action of human body self, also it can be entrained in the sputum and excrete, and the micronic dust about 1 micron, then can invade the lung and the respiratory tract cell of human body after being inhaled into, pernicious consequences such as the self-cleaning action by human body can't excrete it, thereby causes intoxicating, and is carcinogenic.Therefore, stop the suction of dust by filter type in the past, only stoped the coarsegrain dust, and for really powerless to the serious metal micronic dust of human body harm.

At above-mentioned situation, the objective of the invention is to, all has this fact of magnetic according to the metallic dust overwhelming majority who is subjected to dirt in a large amount of production practices the person contacted, the principle that adopts magnetisable material under the effect of magnetic attraction, can be caught by magnetic field sources, a kind of magnetic catch method that prevents all kinds of dust suction human bodies is proposed, and design a kind of magnetic dustproof with filter the mask formula mouth mask that prevents dust and combine, effectively prevent various particle dusts to reach, improve work self-protection ability, reduce the harm of dust particle to greatest extent human body.

Now design of the present invention and technical solution are described below:

The magnetisable material that in non-homogeneous stationary magnetic field, has been magnetized, be subjected to the effect of magnetic attraction, after entering magnetic field, the magnetic dust just under the effect of magnetic attachment, moves to strong place, magnetic field by the place a little less than the magnetic field, adsorbed by magnetic field sources at last, the present invention is exactly according to this principle, at people's mouth, before the nasal respiration road, set up the magnetic dust-control method that a kind of magnetic field is adsorbed the magnetic dust.The volume of the size of magnetic attracting force and magnetic dust, magnetic susceptibility, magnetic field intensity and magnetic field gradient are directly proportional, in order to obtain the maximum magnetic flux what it takes, just should make the value of magnetic field intensity and magnetic field gradient big as much as possible, for this reason, the high performance permanent magnet of the general employing of the present invention, as Nd-Fe-B permanent magnetic iron plate etc., and the surface area of magnetic sheet is strengthened in the scope that is allowed, in order to obtain bigger magnetic field gradient, the present invention is on the basis that experimental results show that, with repulsion state layout, magnetic field and the unlike pole of oneself that each magnetic sheet is formed constitute magnetic loop, obtain bigger magnetic field gradient value with each magnetic sheet.In addition, best to be magnetized to along thickness direction through experiment showed, magnetic sheet along length and width, thick three magnetized dust removing effects of different directions, it is big that magnetic field gradient is also wanted relatively, help catching the spatial magnetic dust.

According to the foregoing invention design, the present invention has designed magnetic catch and has filtered the novel magnetic anti-dust respirator that combines, and its concrete structure is as described below:

This magnetic dust-proof gauze mask branch fundamental sum magnet two parts (referring to Fig. 1) essential part is similar to general self-suction dust filter mask, by filter cloth 1., 2. sealing ring form, belt is 7., filter cloth is 1. according to practical application, can be divided into three layers or two-layer.The skin of two-layer filter cloth type cotton fiber undershirt cloth, internal layer is the static polypropylene non-woven fabric, the inside and outside two-layer of three metafiltration cloth types is cotton fiber undershirt cloth, therebetween one deck static polypropylene non-woven fabric.2. sealing ring is made with nonpoisonous and tasteless plastic foam, and two ledges are arranged on the sealing ring, in order to prevent sternly not enter dust owing to the angle regional seal of the bridge of the nose and cheek.3. 2. sealing ring made along surroundings two-layer or three metafiltration cloth behind the overseam with the rib fabric that has degree of tightness, and 5. 4. magnet part be made up of with the permanent magnetism sheet framework, (referring to Fig. 2,3,4,5,6).4. framework uses nonpoisonous and tasteless vinyon injection molded, is 2～10 of the embedding seats of inlaying the permanent magnetism sheet of φ 8～20mm in having on it, and the distance between the embedding seat can be captured as airborne magnetic dust before the muzzle suitable with the permanent magnetic field of setting up comprehensively.The number that 6. the permanent magnetism sheet is installed is also different, and the magnetic sheet that the general serious more occasion of magnetic dust pollution is inlayed should be some more more.After 6. the permanent magnetism sheet is bumped into the embedding seat, with the framework matrix of packing into, like this, the magnetic dust-proof gauze mask that closes by force mutually of filtering type of the present invention and magnetic attachment, stop most of bulky grain dirt with body portion, catch the metal micronic dust that can bore the filter cloth mesh with magnet part, just can reach 100% dustproof effect.In addition, because magnet has stronger accumulation ability to oxygen, airborne germ virus there is lethal effect, can destroy the normal breeding of relevant zymin, magnetic field also has antiinflammation simultaneously, therefore, adopts the magnetic dust-proof gauze mask of the present invention's design, not only can prevent dust, stop all kinds of pneumoconiosis and other diseases associated and take place, also can improve people's the effciency of respiratory simultaneously, reduce the germ virus infections, to the treatment oral cavity, some inflammation of nasal cavity has also played good effect.

Now that description of drawings of the present invention is as follows:

Fig. 1: magnetic dust-proof gauze mask schematic appearance of the present invention,

Fig. 2: the front view of magnetic dust-proof gauze mask framework of the present invention,

The A-A cut-away view of Fig. 3: Fig. 2

The B-B cut-away view of Fig. 4: Fig. 2

The C-C rotation cut-away view of Fig. 5: Fig. 2

The D-D rotation cut-away view of Fig. 6: Fig. 2

Wherein: 1, filter cloth 2, sealing ring 3, rib fabric 4, framework 5, permanent magnetism sheet 6, embedding seat 7, belt

Magnetic dust-proof gauze mask of the present invention, elegant in appearance, soft comfortable, modern design is specially adapted to produce magnetic dust work place, also can be as general anti-cold dustproof and for health care.After the use, mouth mask can take out framework the magnetic dust is shaked off if draw the dust that is magnetic, and when magnetic sheet was installed, homopolarity was inwardly unified or outside, after dirty, take out framework and washs with warm suds.This product is the good merchantable brand of individual protection, brings glad tidings for the person that connects dirt and vast ruck, has vast market prospect.

Claims

1, a kind ofly is used for individual respiratory tract dustproof method, it is characterized in that: can catch the magnetisable material principle that has been magnetized according to magnetic field sources, at people's mouth, before the nasal respiration road, the permanent magnet pieces that employing is embedded on the framework is set up magnetic field, and combined filtering formula method, prevent that all from might enter all kinds of dust of human body by respiratory tract.

2, a kind of individual respiratory tract dust-control method according to claim 1 and the anti-dust respirator that designs is characterized in that; Have the dustproof and dustproof two parts of magnetic of filtering type, the dustproof part of filtering type is made up of filter cloth, sealing ring, belt; The dustproof part of magnetic is made up of permanent magnet pieces and framework, and 2～10 embedding seats of inlaying permanent magnet are arranged on the framework; The inwardly unified or outwards installation of permanent magnet pieces homopolarity; Between each permanent magnet pieces with repulsion state layout.

3, anti-dust respirator according to claim 2 is characterized in that: filter cloth can be divided into two-layer according to actual use occasion, or three layers, the skin of two stratotypes cotton fiber undershirt cloth, internal layer is the static polypropylene non-woven fabric; The ectonexine of three stratotypes cotton fiber undershirt cloth, therebetween one deck static polypropylene non-woven fabric.

4, anti-dust respirator according to claim 2 is characterized in that: permanent magnet pieces can adopt NdFeB material or other strong permanent magnetic iron materials; Sealing ring is made with non-toxic foam outsourcing rib fabric and is formed, and two place's juts are arranged on the sealing ring, to remedy the space that angle forms between the bridge of the nose and the cheek.