CN105266715A - Air-purifying dust collector - Google Patents

Abstract

The invention discloses an air-purifying dust collector, comprising a housing, an air inlet and an air outlet arranged in the housing, and a motor disposed in the housing. The housing comprises an upper housing and a dust collection container. The upper housing is fixed to the dust collection container. The dust collector also comprises a cyclone filter which is disposed in the housing and used to filter gas entering the dust collector. The cyclone filter has a filter element. A filter paper barrel is composed of two filter paper layers and a catalyst layer disposed between the filter paper layers. The dust collector filter element filters dust and also decreases the pollutant content of the indoor air.

Description

A kind of dust catcher purified air

Technical field

The present invention relates to dust catcher and technical field of air purification, be specifically related to a kind of dust catcher purified air.

Background technology

Dust catcher can be divided into vertical, horizontal and portable by structure.The operation principle of dust catcher is, utilizes motor band moving vane High Rotation Speed, in the housing of sealing, produce air negative pressure, draws dirt bits.

Dust catcher, primarily of playing dirt, dust suction, filter dirt three part composition, generally comprises series excitation commutator motor, centrifugal fan, dirt catcher (bag) and dust suction annex.The power of general dust catcher is 400-1000W or higher, and the power of portable dust collector is generally 250W and following.The dedusting of dust catcher energy, is mainly that its " head " is equipped with an electric exhaust fan.The rotating shaft of air exhauster there is fan blade, after energising, air exhauster can produce extremely strong suction and pressure with the rotating speed of 500 circles per second, under the effect of suction and pressure, air is discharged at a high speed, and the air of vacuum part, blower fan front end constantly supplements the air in blower fan, dust catcher inside is caused to produce instantaneous vacuum, form Negative Pressure Difference with external atmosphere pressure, under the effect of this pressure reduction, suck the air containing dust.Dust and other impurities enters bag dust filter by carpet or floor cleaner brush, long pipe, bend pipe, flexible pipe, hose coupling successively, and dust and other impurities is trapped in bag dust filter, and air after filter disc purification, then is discharged by body afterbody.

The operation principle of dust catcher is motor of dust collector High Rotation Speed; air is sucked from suction inlet; dirt case is made to produce certain vacuum; dust enters the bag dust filter in dirt case by scrubbing brush, adapter, handle, flexible pipe, main suction pipe; dust is left in bag dust filter; air after filtration enters motor through one deck filter again; this layer of filter prevents the dirt bag dust that breaks from sucking one protective barrier of motor; the air entering motor flows out through motor; because in motor operation, carbon brush constantly weares and teares, add again before therefore flowing out dust catcher and filtered together.Filtering material is finer and closely woven, and just air filtration can be obtained dust catcher cleaner, but air permeability is poorer, have impact on the air quantity that motor sucks like this, reduces dust catcher efficiency.Its air permeability is lower, therefore all does waviness to increase vapor permeation area.

But existing dust catcher filter element, the main consideration of its design is filter dust.But in current indoor environment, owing to being rich in a large amount of gaseous state and fume in air, these gaseous states and fume are attached on dust granule.When dust suction, it is from dust granule surface desorption, thus reenters the gas of indoor environment, causes air again to be polluted.

Summary of the invention

The object of the invention is to propose a kind of novel filter element for dust collector, it can when dust catcher works, the gaseous contaminant in purifying air, the haze etc. in such as nitrogen oxide, oxysulfide, aromatic pollution and air.

For reaching this object, the present invention by the following technical solutions:

A kind of dust catcher purified air, comprise housing, the motor be located at air inlet on housing and air outlet and be located in housing, described housing comprises upper shell and dust collecting container, described upper shell is fixed on described dust catcher on described dust collecting container and also comprises the cyclone filter being arranged at and filtering the gas entering dust catcher in housing, described cyclone filter possesses filter core, it comprises the base having the upper bracket of medium pore and have end groove that filter core two ends are circular concentric respectively, be provided with by hoop and pole consolidation all-in-one-piece hollow backbone between upper bracket and base, hollow backbone between upper bracket bottom surface annular groove and cup dolly is peripheral, the cylindrical shape of affixed continuous catadioptric constant amplitude gauffer filters paper web, it is characterized in that:

A. the cylindric gauffer filtering paper web catadioptric is continuously the top margin trapezoidal gauffer that base is outside inwards;

B. the base of end groove is had to form the top margin base frame plate that base is outside inwards;

C. the hoop periphery being consolidated into hollow backbone with pole is formed with the outside trapezoidal frame plate in base;

Described filtration paper cylinder is made up of two layers of filter paper layer and the catalyst layer be mixed between two layers of filter paper layer, and the catalyst that described catalyst layer adopts comprises carrier, active component and co-catalyst.

Described carrier is the mixture of cerium oxide nano cube and γ-manganese dioxide nano pipe, and its mixing quality is than being 2:1-1:2;

Described active component is molybdenum, zirconium, vanadium and tungsten composite oxides, and its mol ratio is 1:(0.5-2): (0.5-2): (0.5-2), described active component weight content is in the catalyst 0.3%-10%;

Described co-catalyst is silver and anatase titanium dioxide, and the mol ratio of Ag and Ti is 2:5, and described co-catalyst weight content is in the catalyst 0.3%-6%;

Described active component weight content is in the catalyst 0.3%-10%, preferred 0.5-%-8%, more preferably 2%-5%.Such as, 0.8%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%.Described x is 0.1-0.5, such as 0.2,0.3,0.4.

Described co-catalyst weight content is in the catalyst 0.3%-6%, preferred 0.5%-5%.Such as, 0.8%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%.

Preferably, the weight ratio of described active component and co-catalyst is 5:1 ~ 2:1.Such as 4.5:1,4:1,3.5:1,3:1,2.5:1.

The preparation method of described catalyst can take conventional infusion process and other alternatives, the prior art unrestricted choice that those skilled in the art can grasp according to it, and the present invention repeats no more.

The present invention is by choosing specific cerium oxide nano cube and γ-manganese dioxide nano pipe as carrier, and choose the molybdenum of special ratios, zirconium, vanadium and tungsten composite oxides as active component, silver and anatase titanium dioxide are as co-catalyst, this catalyst is made to produce cooperative effect, make that the control of this catalyst to the nitrogen oxide in air, aromatic compound and haze is efficient reaches 100%, purified room air greatly.

Detailed description of the invention

The present invention is described catalyst of the present invention by following embodiment.

Embodiment 1

Prepare catalyst by infusion process, described carrier is the mixture of cerium oxide nano cube and γ-manganese dioxide nano pipe, and its mixing quality is than being 2:1;

Described active component is molybdenum, zirconium, vanadium and tungsten composite oxides, and its mol ratio is 1:1:1:1, and described active component weight content is in the catalyst 2%;

Described co-catalyst is silver and anatase titanium dioxide, and the mol ratio of Ag and Ti is 2:5, and described co-catalyst weight content is in the catalyst 1%.

Described catalyst spray is entrained between two layers of filter paper, continuous catadioptric constant amplitude gauffer forms cylindric filtration paper web, this filtration paper web is purified the filter element for dust collector of air according to following structural design, comprising filter core two ends is having the upper bracket of medium pore and having the base of end groove of circular concentric respectively, be provided with by hoop and pole consolidation all-in-one-piece hollow backbone between upper bracket and base, hollow backbone between upper bracket bottom surface annular groove and cup dolly is peripheral, the cylindrical shape of affixed continuous catadioptric constant amplitude gauffer filters paper web, it is characterized in that:

A. the cylindric gauffer filtering paper web catadioptric is continuously the top margin trapezoidal gauffer that base is outside inwards;

B. the base of end groove is had to form the top margin base frame plate that base is outside inwards;

C. the hoop periphery being consolidated into hollow backbone with pole is formed with the outside trapezoidal frame plate in base.

Described filter core is applied to dust catcher of the present invention, a kind of dust catcher purified air, the motor comprising housing, be located at air inlet on housing and air outlet and be located in housing, described housing comprises upper shell and dust collecting container, described upper shell is fixed on described dust catcher on described dust collecting container and also comprises the cyclone filter being arranged at and filtering the gas entering dust catcher in housing, and described cyclone filter possesses filter core.

Window when PM2.5 is 300, make indoor PM2.5 identical with outdoor, close the doors and windows, test PM2.5 after 1 hour, its value is only 12.

Through detecting, the content of Nitrogen Oxides in Indoor Air and oxysulfide all drops to less than 0.1 milligram/cubic metre, is far smaller than the requirement of the Indoor Air Quality standards that GB/T18883-2002 specifies.

Comparative example 1

The carrier of embodiment 1 is replaced with active carbon, and all the other conditions are constant, and the PM2.5 value after 1 hour is 56, and the value of oxide and oxysulfide is all higher than 1 milligram/cubic metre.

Comparative example 2

The V of embodiment 1 is replaced with La, and all the other conditions are constant, and the PM2.5 value after 1 hour is 45, and the value of nitrogen oxide and oxysulfide is all higher than 1 milligram/cubic metre.

Comparative example 3

The Mo of embodiment 1 is replaced with Co, and all the other conditions are constant, and the PM2.5 value after 1 hour is 38, and the value of nitrogen oxide and oxysulfide is all higher than 1 milligram/cubic metre.

Comparative example 4

Carrier is used alone cerium oxide nano cube, and do not use γ-manganese dioxide nano pipe, all the other conditions are constant, and the value of nitrogen oxide and oxysulfide is all higher than 1 milligram/cubic metre, and after 1 hour, PM2.5 value is 39.

Comparative example 5

Carrier is used alone γ-manganese dioxide nano pipe, does not use cerium oxide nano cube, and all the other conditions are constant, and after 1 hour, PM2.5 value is 39, and the value of nitrogen oxide and oxysulfide is all higher than 1 milligram/cubic metre.

Above-described embodiment and comparative example illustrate, there is specific contact between several component of catalyst of the present invention, omit or replace wherein one or more, all can not reach the certain effects of the application, prove to which create cooperative effect.

Applicant states, the present invention illustrates catalyst of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned catalyst, does not namely mean that the present invention must rely on above-mentioned detailed catalysts and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of auxiliary element, the concrete way choice etc. of each raw material of product of the present invention, all drops within protection scope of the present invention and open scope.

Claims (1)

1. the dust catcher purified air, comprise housing, the motor be located at air inlet on housing and air outlet and be located in housing, described housing comprises upper shell and dust collecting container, described upper shell is fixed on described dust catcher on described dust collecting container and also comprises the cyclone filter being arranged at and filtering the gas entering dust catcher in housing, described cyclone filter possesses filter core, it comprises the base having the upper bracket of medium pore and have end groove that filter core two ends are circular concentric respectively, be provided with by hoop and pole consolidation all-in-one-piece hollow backbone between upper bracket and base, hollow backbone between upper bracket bottom surface annular groove and cup dolly is peripheral, the cylindrical shape of affixed continuous catadioptric constant amplitude gauffer filters paper web, it is characterized in that:

A. the cylindric gauffer filtering paper web catadioptric is continuously the top margin trapezoidal gauffer that base is outside inwards;

B. the base of end groove is had to form the top margin base frame plate that base is outside inwards;

C. the hoop periphery being consolidated into hollow backbone with pole is formed with the outside trapezoidal frame plate in base;

Described filtration paper cylinder is made up of two layers of filter paper layer and the catalyst layer be mixed between two layers of filter paper layer, and the catalyst that described catalyst layer adopts comprises carrier, active component and co-catalyst;

Described carrier is the mixture of cerium oxide nano cube and γ-manganese dioxide nano pipe, and its mixing quality is than being 2:1-1:2;

Described active component is molybdenum, zirconium, vanadium and tungsten composite oxides, and its mol ratio is 1:(0.5-2): (0.5-2): (0.5-2), described active component weight content is in the catalyst 0.3%-10%;

Described co-catalyst is silver and anatase titanium dioxide, and the mol ratio of Ag and Ti is 2:5, and described co-catalyst weight content is in the catalyst 0.3%-6%.