CN2822238Y - Tobacco sorting and purifying apparatus - Google Patents

Abstract

The utility model relates to a tobacco sorting and purifying device. A sorting mechanism of the tobacco sorting and purifying device comprises a wind source device (2) and a sorting device (8), wherein the sorting device (8) is positioned beside the wind source device (2). A discharging opening (9) of a tobacco conveying mechanism (1) is communicated with a feeding opening of the sorting device. A wind outlet of the wind source device is communicated with a wind inlet (3) of the sorting device. A tobacco filtering net (6) is arranged at the inner-upper part of a sorting cavity (5) of the sorting device. A sucking opening (7) which is communicated with a dust removing system is arranged at the top part of the sorting device, and a discharging opening is arranged at the bottom part of the sorting device. The utility model which can carries out soft sortation to the tobacco has the advantages of less broken tobacco, compact structure and small energy consumption.

Description

A device for sorting and purifying tobacco materials

technical field

The utility model belongs to the technical field of devices for sorting and purifying tobacco materials in tobacco machinery.

Background technique

Sorting tobacco materials is an indispensable and important link in the tobacco processing technology, and it is one of the main means to improve the purity of shredded tobacco, realize fine processing, and ensure the stability of the inherent quality of cigarettes.

At present, the sorting technology used in the tobacco processing line is to use the principle of "gravity air separation". A typical material air separation device is shown in Figure 1. The throwing roller C in the winnowing chamber throws the materials apart. Due to the difference between the "individual" density (or weight) and surface area of the material components, the suspension speed of the "individual" of different materials is different. Under the suction of the air outlet of the wind separator, the "light" materials and dust , The powder is sucked away into the material pipe D, and the relatively "heavier" material falls from the outlet E at the lower part of the air separator; The rotary filter cylinder G in the feeder separates the tobacco material from the dust and fines, and the material falls from the outlet H below the feeder; the dust and fines are sent to the dust collector J through the dust air pipe I for dust removal and purification However, the above-mentioned technology has at least the following deficiencies:

1) The separated "useful" materials are greatly crushed, which increases the process loss of raw materials and reduces the utilization rate of raw materials. When the air distribution system is working, basically all the unqualified components or "useless" components falling from the bottom of the air separator (such as "wet ball" puffs in the shredded leaves, stem sticks and stem heads in the shredded stems, etc.), However, the "qualified" ingredients have to be transported to the feeder through the material pipe for a long distance. During the transportation process, the material will inevitably collide with the inner wall of the pipe, especially at the elbow part of the material pipe. The collision is the most severe, resulting in Crushing of "acceptable" material. In addition, a certain amount of material crushing will also occur during the process of "material-gas separation" when the material enters the feeder.

2) The system has a lot of equipment, the fan consumes a lot of energy, and the investment and operation costs are high. In addition to the main equipment such as air separator, feeder, dust collector and fan, the whole air separation system also needs a large number of pipelines and pipeline accessories for connection; to achieve the air separation effect of materials and transport materials over long distances, A large air volume and air pressure are required, and a high-power high-pressure centrifugal fan should be selected.

Contents of the invention

The purpose of this utility model is to solve the above-mentioned deficiencies in the prior art and provide a kind of "flexible" sorting of materials in the sorting process of materials, with less broken, compact structure and low energy consumption. Tobacco material sorting and purification device.

The purpose of this utility model is achieved through the following technical solutions.

A tobacco material sorting and purification device, the device includes an air source device, a sorting device located next to the wind source device, the material outlet of the material conveying mechanism communicates with the feed port of the sorting device, Connected with the air inlet of the sorting device, a material filter is set above the sorting chamber of the sorting device, the top of the sorting device is provided with a suction port leading to the dust removal system, and the bottom is provided with a discharge port.

The utility model is provided with a wind direction adjustment mechanism at the air inlet of the sorting device; an angle-adjustable material guide mechanism is provided at the discharge port of the material conveying mechanism; at least two discharge ports are provided at the bottom of the sorting device; The preferred material filter is wire mesh or perforated plate.

When the utility model works, the wind generated by its own wind source is used to blow at a certain angle to the tobacco materials to be sorted that fall from top to bottom in a "waterfall" shape in the sorting chamber. Due to the difference in the "individual" density (or weight) and shape of the material components to be sorted, these material components will produce different displacements on the horizontal section of the wind separation chamber under the action of wind force, so that they can be separated Select different components in the material: individual relatively "big or heavy" material components have a small displacement, and fall from the material outlet close to the wind source; The material outlet of the source port falls. During the sorting process, the dust and debris in the material pass through the filter screen and enter the dust removal system to be sucked away. The sorting effect of materials can be ensured by adjusting the wind pressure (or air volume) and wind direction of the air source, the angle of the material guide plate and the dust removal air volume. The control of the wind pressure (or air volume) of the air source is realized by adjusting the speed of the impeller (or fan) controlled by the frequency converter; the wind direction of the air source, the angle of the material guide plate and the adjustment of the dust removal air volume can be set manually or remotely controlled , Automatic execution. The structure or material of the filter screen can be flexibly selected according to the actual situation. The utility model reduces the long-distance transportation of materials, effectively reduces the crushing loss and energy consumption of materials, and has a simple and compact structure.

Further set forth the content of the present utility model below in conjunction with accompanying drawing of description.

Description of drawings

Fig. 1 is the structural representation of prior art gravity air separation device;

Fig. 2 is a schematic structural view of the utility model.

Detailed ways

As shown in Figure 2, the utility model comprises a material conveying mechanism 1 and a sorting mechanism, and the sorting mechanism comprises an air source device 2 positioned below the conveying mechanism, a sorting device 8 positioned next to the wind source device 2, and the material conveying mechanism 1 The discharge port 9 communicates with the feed port of the sorting device 8 , and an angle-adjustable material guide mechanism 10 is provided at the discharge port 9 of the material conveying mechanism 1 . The air outlet of the wind source device 2 communicates with the air inlet 3 of the sorting device 8 , and the air inlet 3 is provided with an air direction adjusting mechanism 4 . A material filter screen 6 is arranged above the inside of the sorting chamber 5 of the sorting device 8, and the material filter screen 6 can be a wire mesh or a perforated plate. The top of the sorting device 8 is provided with a suction port 7 leading to the dust removal system, and the bottom is provided with two discharge ports 11 and 12 .

Sorting process: the tobacco materials to be sorted are transported into the sorting chamber 5 through the belt conveyor 1, and then the sorting of the materials is completed under the action of the wind source generated by the wind source device 2, and the different materials after sorting are separated Falling from the two material outlets 11 and 12, the dust and debris in the material enter the dust removal system through the filter screen 6 and are sucked away. The wind direction of the wind source can be regulated by the wind direction adjusting mechanism 4, and the angle of the material guide plate 10 and the dust removal air volume can be adjusted.

The utility model can be used in the following occasions:

1) After the tobacco stems are redried on the tobacco threshing and redrying line, the broken stems and stem skins in the tobacco stems are sorted out, and the tobacco stems are subjected to dust removal and purification treatment; The final temperature of the tobacco stems can avoid the moisture regain of the tobacco stems, which is convenient for packaging and storage.

2) It is used to sort out the unloose cigarettes entrained in the tobacco sheets or the cigarettes that are molded and bonded together after the tobacco flakes are loosened and regained moisture.

3) After it is used in the process of expanding and drying the shredded leaves on the tobacco threading line, sort out the stem sticks entrained in the shredded leaves after drying, and the wet mass "smoke balls" that have not been loosely dried, and at the same time perform dust removal and rapid cooling on the shredded leaves After treatment, the leaf shreds are well curled and shaped, which is beneficial to improve the filling value and purity of the leaf shreds.

4) After the cut stem expansion and drying process on the tobacco threading line, the unqualified materials such as stem sticks and stem heads entrained in the cut stems are sorted, and the cut stems are dedusted and purified at the same time.

Claims (5)

1, a kind of tobacco sorting and purifier, comprise material conveying mechanism (1) and sorting mechanism, it is characterized in that, described sorting mechanism comprises wind regime device (2), be positioned at the sorting unit (8) on wind regime device (2) next door, the discharging opening (9) of material conveying mechanism (1) is communicated with the charging aperture of sorting unit (8), the air outlet of wind regime device (2) is communicated with the air inlet (3) of sorting unit (8), the top is provided with material filtering net (6) in the sorting chamber (5) of sorting unit (8), sorting unit (8) top is provided with the pump orifice (7) that leads to dust pelletizing system, and the bottom is provided with discharging opening.

2, a kind of tobacco sorting according to claim 1 and purifier is characterized in that, the air inlet (3) in sorting unit (8) is provided with wind direction governor motion (4).

3, a kind of tobacco sorting according to claim 1 and purifier is characterized in that, the discharging opening (9) in material conveying mechanism (1) is provided with the material guide mechanism (10) of adjustable angle joint.

4, a kind of tobacco sorting according to claim 1 and purifier is characterized in that, are provided with at least two discharging openings (11), (12) in sorting unit (8) bottom.

5, a kind of tobacco sorting according to claim 1 and purifier is characterized in that, described material filtering net (6) is silk screen or punched-plate.

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