CN201774966U

CN201774966U - Center buried spherical interception filter tip

Info

Publication number: CN201774966U
Application number: CN2010202824022U
Authority: CN
Inventors: 彭荣淮; 张玲珑; 赵新焰; 刘胜宝; 时清屏; 尚智慧
Original assignee: BENGBU CIGARETTE MATERIAL FACTORY
Current assignee: BENGBU CIGARETTE MATERIAL FACTORY
Priority date: 2010-07-30
Filing date: 2010-07-30
Publication date: 2011-03-30
Anticipated expiration: 2020-07-30

Abstract

The utility model provides a center buried spherical interception filter tip which comprises a tow core rod (1) and a forming paper (2) wrapping the outer layer of the tow core rod (1), wherein a hollow ball (3) is buried in the center of the tow core rod, a set of small drainage holes (4) is distributed on the surface of the hollow ball, can be regularly arranged with an equal distance or an unequal distance and also be irregularly arranged, and the size of each small drainage hole is 0.01-1.0MM. The utility model has the advantages that the hollow ball is arranged in the center of the tow core rod to lower the central density and force a part of flue gas to enter the longitudinal hollow ball by flowing through the small drainage holes; and because a space is suddenly enlarged, the small drainage holes fulfill the function of cold wells, and a part of flue gas is condensed. In this way, the flue gas repeatedly flows through a plurality of longitudinal pipe cores and the small drainage holes, therefore, particles in the flue gas are dramatically intercepted.

Description

Spherical blocking filter rod is buried at a kind of center

Technical field

The utility model relates to tobacco product, particularly a kind of filter fibrous type mouth rod of cigarette.

Background technology

The mechanism that fibrous type mouth rod is removed particle matter in the flue gas is exactly that mechanicalness is filtered, and its filter efficiency is relevant with size (quality and diameter), the movement velocity of particulate, the diffusion (distribution situation and the time of staying) of particulate in filament of particulate in the flue gas.Because particulate passes through the time very short (0.04 second) of mouth rod, the diameter of particulate very little (0.2 micron), and filametntary diameter (20 microns) is bigger 100 times than the diameter of particulate.Therefore, the fiber of mouth rod mechanical filter (holding back) rate that particulate is caused is very little.

It is exactly to make particulate continuous and fiber collision in flow path that fibrous type mouth rod mechanicalness is filtered, and forms inertia impact.Because the quality of the movement velocity of particulate and particulate is all little, the momentum that motion produces just can not be big, and therefore, inertia impact is to the contribution of cigarette filter tip efficient also very little (account for total clearance 2%).

The disordered motion of particulate causes that the collision with fiber promptly forms the diffusion deposition.Studies show that the motion of low quality particulate is more more than high-quality person, the mistakes rate effect that when low flow velocity, causes because of diffusion just generally, this has been the time lengthening that stops in filter tip owing to particulate, makes particulate have more opportunity and spreads in filament.The particle removal that is caused by the diffusion deposition accounts for 65% of total clearance.

When particulate very closely flows through fiber and collides with it direct interception function will take place, this mechanism is relevant with the size of particulate, and irrelevant with the flow velocity of particulate.This particulate of being removed by direct interception function accounts for the 30%-35% of total clearance greatly.

At present, cigarette props up generally to adopt and installs fibrous type mouth rod additional and alleviate the harm of smoking to human body, and the tow in the conventional fibre type mouth rod generally all is that straight bundle distributes, owing to added glue and the influence that rolls the process mechanism characteristic, it is uneven that the resistance to suction of filter tip distributes, and generally is that the center is little, big on every side.Therefore, flue gas mostly flows along the center of filter tip in filter tip fast, seldom to around diffusion, the mechanicalness filtering effect of tow occurs in the central area of filter tip substantially, the mechanicalness filter efficiency of tow is because of the smoke distribution inequality, and has a greatly reduced quality.Hold back efficient to satisfy the requirement of people for what improve fibrous type mouth rod, satisfy people again to the smoking demand simultaneously, must change original filter fibrous type mouth bar structure, reduce harmful ingredients in flue gas better and reduce tar content to reach to health.

The utility model content

The purpose of this utility model is exactly to hold back the not high defective of efficient for what overcome that existing fiber mouth rod exists, carries out architecture advances, to improve the hold back efficient of fibrous type mouth rod to flue gas.

To achieve these goals, the utility model has adopted following technical proposals:

Spherical blocking filter rod is buried at a kind of center, it is made up of the forming paper of stranded core rod and outer parcel, it is characterized in that: in the stranded core rod central longitudinal to burying at least one hollow ball underground, be distributed with one group of drainage aperture on the surface of hollow ball, its quantity can be 1-2000, the drainage small-bore is 0.01-1.0MM, and the drainage aperture on the hollow ball can carry out equidistantly or be not equidistant regularly arranged, also can carry out non-regularly arranged.

Hollow ball is the entity ball (3a) with highly-breathable, high adsorption

Advantage of the present utility model is:

1, because stranded core rod center density is less, and most of flue gas at first enters the hollow of hollow ball 3, because the hollow ball space increases suddenly, form " cold well " phenomenon, the flue gas aerosol particle that enters increases, and condensation aerosol improves deposition efficiency.

2, because the effect of drainage aperture descends the fibrous type nozzle rod sucting resistance, change traditional fibre type mouth rod rejection and become positively related unfavorable mode with resistance to suction, and can be by the quantity or the drainage small aperture regulation and control resistance to suction of drainage aperture.

4, change flue gas conventional flow path in filter tip, change the straight line form of tow, the more collision of high probability takes place in tow and aerosol particles with tracing pattern, consume the kinetic energy of particulate, it is more stayed, thus path, the time of passing through and mobile speed that prolong smoke flows in filter tip;

5, change the distribution situation of flue gas in filter tip, thereby make the probability that flue gas distributes comprehensively, fully diffusion improves smoke particles and tow lateral impact in filter tip; The 3rd, the intensive flow region of flue gas is set, force flue gas crowded mobile, thereby produce directly interception effect.

For the utility model is described in further detail, following accompanying drawing provides a most preferred embodiment.

Description of drawings:

Fig. 1 is a front view of the present utility model;

Fig. 2 is the hollow ball enlarged drawing of Fig. 1;

Fig. 3 is Fig. 1 entity ball enlarged drawing;

The specific embodiment:

Embodiment one:

As shown in Figure 1 and Figure 2, spherical blocking filter rod is buried at a kind of center that the utility model provides, it is made up of the forming paper 2 of stranded core rod 1 and outer parcel, in the stranded core rod central longitudinal to burying one group of five hollow hollow ball 3 underground, be distributed with one group of drainage aperture 4 on the surface of hollow ball 3, its quantity can be 1-2000, and the drainage small-bore is 0.01-1.0MM, drainage aperture on the hollow ball 3 can carry out equidistantly or be not equidistant regularly arranged, also can carry out non-regularly arranged.

Hollow ball 3 reduces center density at the stranded core rod center, forces partial fume to flow through the drainage aperture and enters the hollow of hollow ball 3, because amplify suddenly in the space, they play the effect of cold well, and partial fume is condensed.Pass through vertical tube core of multiple tracks and drainage aperture so repeatedly, the particulate in the flue gas is held back significantly.

Embodiment two:

As shown in Figure 3, Fig. 2 hollow bulbus cordis is to have the entity ball 3a that highly-breathable, high adsorption material are made, and as the entity spheroid that adopts active carbon or nano material to make, wherein has the micropore 4a of absorption flue gas, can reach the purpose of holding back flue gas equally.

Claims

1. spherical blocking filter rod is buried at a center, it is made up of the forming paper (2) of stranded core rod (1) and outer parcel, it is characterized in that: to burying at least one hollow ball (3) underground, be distributed with one group of drainage aperture (4) on the surface of hollow ball (3) in the stranded core rod central longitudinal.

2. spherical blocking filter rod is buried at a kind of center according to claim 1, it is characterized in that: hollow ball is the entity ball (3a) with highly-breathable, high adsorption.