CN211756691U

CN211756691U - Tobacco stalk screening equipment

Info

Publication number: CN211756691U
Application number: CN202020137741.5U
Authority: CN
Inventors: 马波波; 姚倩; 马一琼; 张子颖; 贾国涛; 李悦; 程良琨
Original assignee: China Tobacco Henan Industrial Co Ltd
Current assignee: China Tobacco Henan Industrial Co Ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-10-27
Anticipated expiration: 2030-01-21

Abstract

A tobacco stem screening apparatus comprising: the cylindrical screening roller is positioned on the upper layer, and the flat screening vibrating screen is positioned on the lower layer; the screening roller is obliquely arranged, the front end of the screening roller is connected with the straightened tobacco stems, a plurality of rectangular grooves for containing the tobacco stems are uniformly distributed on the outer surface of the screening roller, and the long side direction of the screening roller is consistent with the incoming material direction; the screening sieve has a plurality of independent vibrating plates in the horizontal transverse direction and each has: the tobacco stem screening device comprises a plurality of circular holes uniformly distributed on the surface of a vibrating flat plate and a collecting inclined plane positioned at a baffle of the vibrating flat plate, wherein the circular holes are screened by two stages, and the collecting inclined plane is divided into a plurality of independent screening flat plates on the second stage, so that tobacco stems with different specifications are effectively separated, and raw materials with uniform quality are provided for subsequent tobacco stem processing.

Description

Tobacco stalk screening equipment

Technical Field

The utility model belongs to tobacco redrying processing field is about a offal screening equipment very much.

Background

In the field of tobacco redrying processing, particularly in the screening and grading of tobacco stems after the separation of the tobacco stems according to the thickness of the tobacco stems, about 25 percent of the tobacco stems in the tobacco leaf raw materials have high cellulose content of the tobacco stems, and the expanded tobacco stems are used on cigarette products as one component of the product, so that not only can the tar content be reduced, the smoke state be improved, but also the raw material cost can be reduced. In the tobacco stem processing process, the tobacco stem screening and impurity removal are important processes in the tobacco stem processing process, and the screening of tobacco stems with proper sizes (thickness and length) is the basis of the difficulty degree of the post-process processing.

The existing tobacco stalk screening device mostly adopts a single-layer screen, and the screen is provided with a structure of round holes or long holes, so that the problems of incomplete screening, low screening efficiency, incapability of classifying all tobacco stalks in a grading manner, easiness in blocking the screen and the like exist in the use process, and particularly, the effective screening on the length of the tobacco stalks is difficult.

The existing equipment can be used for straightening the tobacco stem feeding device, so that the tobacco stems are arranged orderly according to the length direction, and the uniform tobacco stems enter a tobacco cutting machine to be cut into cut stems. However, this device does not have the function of distinguishing thick and thin tobacco stems, and causes the situations that resources cannot be reasonably utilized, the quality of cut stems is not uniform, and the like when the stems are cut.

SUMMERY OF THE UTILITY MODEL

The utility model aims at a novel offal screening equipment solves the prior art problem, can evenly, sieve the common offal of actual production fast, improves production efficiency and quality, effectively separates the offal of different specification and specification (thickness, length), provides the even unanimous raw materials of quality for follow-up offal processing.

In order to realize the technical purpose, the utility model provides a offal screening equipment, it includes: the cylindrical screening roller is positioned on the upper layer, and the flat screening vibrating screen is positioned on the lower layer; the tobacco stem sorting device is characterized in that the axis of the screening roller is obliquely arranged relative to the horizontal line, the front end of the screening roller is connected with a tobacco stem sorting device and receives sorted tobacco stems, a plurality of rectangular grooves are uniformly distributed on the outer surface of the screening roller, the tobacco stems are accommodated in the rectangular grooves, and the long side direction of each rectangular groove is consistent with the incoming material direction of the tobacco stems; the screening sieve that shakes has a plurality of independent vibration flat boards along horizontal, and every the vibration flat board all has: a plurality of evenly distributed round holes on the surface of the vibration flat plate and a collection inclined plane at the baffle of the vibration flat plate.

The utility model discloses through the two-stage screening, and divide into independent a plurality of screening flat board again on the second level, carry out different secondary screening to the offal after the one-level screening, corresponding follow-up production or further reprocessing processing can be done according to its concrete size to the offal through each independent second grade screening, effectively separates the offal of different specifications, provides the even unanimous raw materials of quality for follow-up offal processing.

As a further improvement, a collecting belt is horizontally and transversely arranged on the lower layer of the screening vibrating screen.

As a further improvement, the axis of the screening drum is inclined at an angle of 3 to 6 degrees relative to the horizontal.

As a further improvement, the plurality of rectangular grooves have a plurality of regions along the axis of the screening drum, and the opening size of the rectangular grooves in the regions is gradually increased from the front end to the rear end of the screening drum.

As a further improvement, the area has three, and the rectangular grooves respectively correspond to and include: the first rectangular groove, the second rectangular groove and the third rectangular groove.

As a further improvement, the vibrating plate has three and corresponds to the region in the vertical direction, and the circular hole corresponds to the rectangular groove and includes: a first circular aperture, a second circular aperture, and a third circular aperture.

As a further improvement, the diameters of the first, second, and third circular holes are gradually increased.

As a further improvement, it also includes a brush in abutting contact with the outer surface of the screening drum, the brush being disposed on the feed side of the screening drum and extending along the axis of the screening drum.

As a further improvement, the screening drum rotates anticlockwise in the direction of the front end face of the screening drum, and the hairbrush is arranged in the horizontal direction of the feeding side of the screening drum.

As a further improvement, the hairbrushes are distributed in a linear type or arc shape in the end surface direction of the screening roller.

The utility model discloses a brush is further straightened order, and each grade screening has three kinds of different dimensions again simultaneously, accomplishes meticulous screening and independently collects and do subsequent production and processing use to the offal of different specifications to the offal.

Drawings

Fig. 1 is an external view of the present invention;

FIG. 2 is a schematic axial view of a screening drum;

FIG. 3 is a schematic front end view of a screening drum;

fig. 4 is a schematic diagram of a sieving shaker.

Reference numerals: screening cylinder 1, screening 2 that shakes, collection belt 3, collection inclined plane 4, brush 5.

Detailed Description

As shown in fig. 1 to 4, the direction of the straight arrow is the material transporting direction, and the circumferential direction is the rotating direction of the sieving roller. The utility model provides a offal screening equipment, it includes: the screening device comprises a cylindrical screening roller 1 positioned on the upper layer and a flat plate-shaped screening vibrating screen 2 positioned on the lower layer; the tobacco stem sorting device is characterized in that the axis of the screening roller 1 is obliquely arranged relative to the horizontal line, the front end of the screening roller is connected with a tobacco stem sorting device and receives sorted tobacco stems, a plurality of rectangular grooves are uniformly distributed on the outer surface of the screening roller 1, the tobacco stems are accommodated in the rectangular grooves, and the long side direction of each rectangular groove is consistent with the incoming material direction of each tobacco stem; the screening sieve 2 has a plurality of independent vibrating plates in the horizontal direction, and each vibrating plate has: a plurality of evenly distributed round holes on the surface of the vibration plate and a collection inclined plane 4 at the baffle of the vibration plate.

As a further improvement, a collecting belt 3 is horizontally and transversely arranged at the lower layer of the sieving vibrating screen 2.

As a further improvement, the axis of the screening drum 1 is inclined at an angle of 3 to 6 degrees to the horizontal. Preferably 5 degrees.

As a further improvement, the plurality of rectangular grooves have a plurality of zones along the axis of the screening drum 1, and the opening size of the rectangular grooves in the zones gradually increases from the front end to the rear end of the screening drum 1. The tobacco stems collected from the near to the far away from the tobacco stem straightening device gradually increase in thickness.

As a further improvement, the diameters of the first, second, and third circular holes are gradually increased. The corresponding tobacco stem straightening device is gradually increased in aperture from a near part to a far part, and the tobacco stems which fall from the upper layer and are collected from the near part to the far part from the tobacco stem straightening device are gradually increased in thickness. Sundries are removed from tobacco stems with different specifications, thicker tobacco stems are screened on a flat vibrating screen with larger round holes, sundries and broken tobacco stems are screened more effectively, and the screened tobacco stems have inclination angles for collecting stems at baffle plates; the lower layer is a sundries and broken stem collecting belt.

As a further improvement, it also comprises a brush 5 in abutting contact with the outer surface of the screening drum 1, said brush 5 being arranged at the feed side of the screening drum 1 and extending along the axis of the screening drum 1.

As a further improvement, the screening drum 1 is rotated counterclockwise in the direction of its front end face, and the brush 5 is arranged in the horizontal direction of the feed side of the screening drum 1.

As a further improvement, the brushes 5 are distributed in a linear manner or in an arc manner in the end surface direction of the screening roller 1.

The utility model adopts a two-layer screening device, firstly, tobacco stems with different thicknesses are screened out by a screening roller distributed with grooves; and then, impurities in tobacco stems with different specifications are accurately screened through the flat vibrating screen on the middle layer, so that the purity of the tobacco stems is improved, and pure and uniform-quality raw materials are provided for subsequent stem processing. The sorting and collecting of the normal tobacco stalk discharge is positioned behind the middle-layer flat plate vibrating screen, the discharge collecting device comprises tobacco stalk collecting devices with different specifications respectively, and the broken stalk discharge collecting device is positioned at the lowest layer.

The utility model discloses a have the significance to actual production, the offal that normal redrying processing was collected is carried to offal reason device by conveyor belt, and the offal is arranged along the material flow direction. After being straightened, the tobacco stems are conveyed to a screening roller with a groove through a conveying belt by tobacco stem screening devices with different specifications, the tobacco stems with different specifications are screened on the screening roller with the groove when passing through the screening roller, and the tobacco stems fall on three flat plate vibration sieves at the middle layer from thin to thick. The tobacco stems falling on the middle-layer flat vibrating screen move on the flat vibrating screen with the round holes under the vibration of the equipment, impurities and broken stems with the size smaller than the diameter of the round holes fall to the lower layer when the equipment vibrates, the qualified tobacco stems move forwards in the vibration of the equipment and are collected at the normal tobacco stem classification and collection part through the baffle. The crushed stalks falling to the lower layer are collected or further processed by a conveying belt.

The utility model is used for in threshing and redrying course of working, the offal sieves according to the specification, can go out broken stalk screening, and the offal of different specifications redries respectively, deposits, provides pure, the even unanimous raw materials of quality for follow-up offal processing, to the offal of different specifications, and grouping processing adopts different throwing technology to handle the offal, improves the utilization ratio of offal.

The utility model can be used for tobacco stem processing technology of tobacco stem gathering, tobacco stem redrying and packaging. The utility model discloses divide into two kinds of situations again: (1) the utility model is placed before the tobacco stems are redried, broken stems and sundries can be screened more effectively, and stems with different specifications are redried and packaged respectively, so that the fluctuation of the moisture of the tobacco stems can be reduced; (2) the utility model discloses put before the packing, the offal after threshing and redrying gets into screening plant, can separate away the broken stalk that produces in the redrying in the lump, improves the usability of offal.

It is to be understood that the invention is not to be limited in scope by the non-limiting embodiments, which are illustrated as examples only. The essential protection sought herein is further defined in the scope provided by the independent claims, as well as in the claims dependent thereon.

Claims

1. A tobacco stem screening apparatus, comprising: the cylindrical screening roller is positioned on the upper layer, and the flat screening vibrating screen is positioned on the lower layer; the tobacco stem sorting device is characterized in that the axis of the screening roller is obliquely arranged relative to the horizontal line, the front end of the screening roller is connected with a tobacco stem sorting device and receives sorted tobacco stems, a plurality of rectangular grooves are uniformly distributed on the outer surface of the screening roller, the tobacco stems are accommodated in the rectangular grooves, and the long side direction of each rectangular groove is consistent with the incoming material direction of the tobacco stems; the screening sieve that shakes has a plurality of independent vibration flat boards along horizontal, and every the vibration flat board all has: a plurality of evenly distributed round holes on the surface of the vibration flat plate and a collection inclined plane at the baffle of the vibration flat plate.

2. The tobacco stem screening apparatus according to claim 1, wherein: and a collecting belt is horizontally and transversely arranged on the lower layer of the screening vibrating screen.

3. The tobacco stem screening apparatus according to claim 1, wherein: the axis of the screening drum is inclined at an angle of 3 to 6 degrees relative to the horizontal.

4. The tobacco stem screening apparatus according to claim 1, wherein: the plurality of rectangular grooves have a plurality of regions along the axis of the screening drum, and the opening sizes of the rectangular grooves in the regions are gradually increased from the front end to the rear end of the screening drum.

5. The tobacco stem screening apparatus according to claim 4, wherein: the area has three, just the rectangle recess corresponds respectively and includes: the first rectangular groove, the second rectangular groove and the third rectangular groove.

6. The tobacco stem screening apparatus according to claim 5, wherein: the vibrating plate is provided with three vibrating plates and corresponds to the area in the vertical direction, and the round holes correspond to the rectangular grooves and comprise: a first circular aperture, a second circular aperture, and a third circular aperture.

7. The tobacco stem screening apparatus according to claim 6, wherein: the diameters of the first, second, and third round holes gradually increase.

8. The tobacco stem screening apparatus according to claim 1, wherein: the screening device further comprises a brush which is in abutting contact with the outer surface of the screening roller, and the brush is arranged on the feeding side of the screening roller and extends along the axis of the screening roller.

9. The tobacco stem screening apparatus according to claim 8, wherein: the screening roller rotates anticlockwise on the front end face direction of the screening roller, and the hairbrush is arranged in the horizontal direction of the feeding side of the screening roller.

10. The tobacco stem screening apparatus according to claim 8, wherein: the brushes are distributed in a linear type or arc shape in the end face direction of the screening roller.