CN201871491U - Improved VAS (vessel analysis system) air classifier - Google Patents

Abstract

The utility model discloses an improved VAS (vessel analysis system) air classifier comprising a box body (1), an upper induced draft pipeline (2), a lower induced draft pipeline (3), wind power adjusting plates (4) and a net cage (5), wherein a material inlet (6) is arranged on the side wall of the middle-upper part of the box body (1), the induced draft pipeline (2) is arranged at the top of the box body, two wind power adjusting plates (4) are oppositely arranged on the bottom of the box body (1) by a screw rod, a blanking port (7) is formed by the two wind power adjusting plates (4), the net cage (5) is arranged below the box (1), and the lower induced draft pipeline (3) is arranged at the bottom of the net cage (5). In the improved VAS air classifier, smashed tobacco shreds are separated from stems by the gravity wind principle, heavier stems drop down and are sucked into dust removal chamber, the lighter tobacco shreds are sucked upwards, return to and are mixed into the tobacco shreds, so that the air classifier plays the roles of lowering cost, improving efficiency, and guaranteeing the cleanness of production fields.

Description

Improved VAS Air Separator

technical field

The utility model relates to cigarette equipment, in particular to an improved VAS wind separator at the outlet of leaf shred drying.

Background technique

It is known that a large number of stem sticks and shredded tobacco are removed after VAS screening. In line with the principle of reducing costs and increasing efficiency and ensuring the cleanliness of the production site, they must be moved to other places for further processing. The previous method is to manually sprinkle the screened material on the screening vibrating tank for secondary screening, and select some relatively complete shredded tobacco for back-blending. However, such manual separation cannot meet large-scale industrial production, and there are time-consuming, Consumption of manpower and easy to produce environmental pollution and other issues.

Contents of the invention

The purpose of the utility model is to provide an improved VAS air separator with simple structure, low cost, convenient operation, easy maintenance and high impurity removal efficiency.

The technical solution of the utility model is: the winnowing device includes a box body, an upper suction duct, a lower suction duct, a wind force regulating plate and a net box, a feed inlet is arranged on the side wall of the middle and upper part of the box body, and the side wall of the box body The upper suction pipe is installed on the top, and two wind force regulating plates are installed on the bottom of the box through the screw rod, and the two wind force regulating plates form a blanking opening. .

Wherein, an observation window is installed on one of the side walls of the casing.

When working, the mixture of shredded tobacco and stem sticks falls into the box from the feed port of the box, and the two wind regulating plates are adjusted by the screw to control the pressure difference between the box and the net cage; when the distance between the wind regulating plates becomes smaller , the negative pressure value in the upper half of the box increases, and when the wind force value exceeds the gravity of the stem stick itself, the stem stick is also sucked away; Fall together; when the pressure value of the upper and lower parts of the box tends to be balanced, the shredded tobacco is sucked upwards into the upper suction duct for remixing, and at the same time, the stems fall through the net cage and the lower suction duct and are sucked into the dust removal room.

The utility model has the following advantages: 1. The broken shredded tobacco and stem sticks are separated by using the principle of gravity air separation. The heavier stem sticks fall and are sucked into the dust removal room, while the lighter shredded tobacco is sucked up and mixed into the shredded tobacco. It plays the role of reducing cost and increasing efficiency and ensuring the cleanliness of the production site; 2. The pressure difference between the upper and lower parts of the box is controlled by two wind regulating plates through the screw rod. The structure is simple, the operation is convenient, the energy consumption is low, and the removal efficiency is high. , reduce labor intensity, improve the quality of dried leaf silk, and save production time;

3. The net cover is to realize the exchange of internal and external air for easy adjustment, and the second is to prevent environmental pollution on the production site.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1 box body, 2 upper suction duct, 3 lower suction duct, 4 wind regulating plate, 5 cage, 6 feeding port, 7 dropping port, 8 observation window.

Detailed ways

As shown in Figure 1, the winnowing device comprises a box body 1, an upper suction duct 2, a lower suction duct 3, a wind force regulating plate 4 and a net cage 5, and a feed inlet 6 is arranged on the side wall of the middle and upper part of the box body 1. , the top of the box body is installed with an upper suction duct 2, and the bottom of the box body 1 is relatively installed with two wind force regulating plates 4 through the screw rod, and the blanking port 7 is formed by the two wind force regulating plates 4, and the net is installed under the box body 1. Case 5, suction duct 3 is installed at the bottom of net cage 5.

Wherein, an observation window 8 is installed on one of the side walls of the box body 1 .

During work, the mixture of shredded tobacco and stem sticks falls into the box body 1 from the feed port 6 of the box body, and the two wind regulating plates 4 are adjusted through the screw rod to control the change of the pressure difference between the box body 1 and the net cage 5; When the distance between the wind adjustment plates becomes smaller, the negative pressure value in the upper half of the box increases, and when the wind force value exceeds the gravity of the stem stick itself, the stem stick will also be sucked away; when the distance between the wind force adjustment plate becomes larger, the wind force value is smaller than the shredded tobacco itself Under gravity, the shredded tobacco and stem sticks fall together; when the pressure value of the upper and lower parts of the box tends to be balanced, the shredded tobacco is sucked upward into the upper suction duct 2 for back mixing, while the stem sticks fall through the cage 5 and the lower suction duct 3 for suction Dust room.

Claims (2)

1. modified VAS air classifier, it is characterized in that: this air classifier comprises casing (1), last air-suction duct (2), following air-suction duct (3), wind-force adjustable plate (4) and net cage (5), establish charging aperture (6) on the middle and upper part sidewall of casing (1), air-suction duct (2) is installed at the top of casing, two wind-force adjustable plates (4) are installed relatively through screw mandrel in the bottom of casing (1), form blanking port (7) by two wind-force adjustable plates (4), net cage (5) is installed in below at casing (1), and air-suction duct (3) is down installed in the bottom of net cage (5).

2. modified VAS air classifier according to claim 1 is characterized in that: wherein, on a wherein sidewall of casing (1) observation window (8) is installed.

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