CN219540974U

CN219540974U - Re-winnowing system

Info

Publication number: CN219540974U
Application number: CN202320252871.7U
Authority: CN
Inventors: 刘迪; 侯加文; 王磊; 孟祥云; 温运岭; 刘昂
Original assignee: China Tobacco Henan Industrial Co Ltd
Current assignee: China Tobacco Henan Industrial Co Ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-08-18
Anticipated expiration: 2033-02-20

Abstract

The utility model discloses a re-winnowing system, which is mainly designed in that the re-winnowing system consists of a belt conveyor, a winnowing cover, a wind power conveying pipeline, a screening device and a dust removing pipeline, wherein the belt conveyor is arranged at a trash outlet of an on-site winnowing machine and is communicated with the winnowing cover; two ends of the wind power conveying pipeline are respectively connected with a ventilation sub-cover and a screening device; the screening device is arranged at a feed back inlet of the on-site winnowing machine and is respectively communicated with the feed back inlet and the dust removing pipeline, tobacco shreds are thrown into the air separating cover through the belt conveyor, tobacco shred materials reaching the suspension speed are conveyed to the screening device through the air conveying pipeline under the action of wind force, and then the conveyed materials are screened into tobacco shreds and dust and are respectively conveyed back to the on-site winnowing machine and are conveyed into the dust removing pipeline. The utility model improves on the basis of the original equipment, can effectively improve the tobacco shred winnowing effect, reduces the waste problem of qualified tobacco shreds, and forms multi-stage and multi-time refined tobacco shred winnowing.

Description

Re-winnowing system

Technical Field

The utility model relates to the field of cigarette manufacturing, in particular to a re-winnowing system.

Background

After the silk drying process is finished, wet-lump cut tobacco with too high moisture content, stem sticks, hard lump sundries and the like can be removed through a winnowing process in a silk manufacturing workshop, so that the purity of qualified cut tobacco is ensured. Usually, the FS416A in-situ air separator is adopted or is similar to the in-situ air separator in structure. The process flow of the in-situ winnowing machine is 5000kg/h, and the winnowing process is not fine and is not easy to regulate due to the large flow. The air quantity is too large, and stem and sundries cannot be removed; the air quantity is too small, and qualified tobacco shreds are removed, so that waste is caused. After the production of each batch of baked cut tobacco is finished, sorting and weighing qualified cut tobacco at the sundry removing position, wherein about 7-8kg of qualified cut tobacco is counted to be removed by mistake.

Disclosure of Invention

In view of the above, the present utility model aims to provide a re-air separation system to solve the problem of waste of qualified tobacco shreds.

The technical scheme adopted by the utility model is as follows:

the utility model provides a re-winnowing system, which comprises the following components: the device comprises a belt conveyor, an air separation cover, a wind power conveying pipeline, a screening device and a dust removing pipeline;

the belt conveyor is arranged at a impurity outlet of the local winnowing machine and is communicated with the winnowing cover; two ends of the wind power conveying pipeline are respectively communicated with an upper port of the wind division cover and a feed inlet of the screening device;

the screening device is arranged at a return inlet formed in the on-site winnowing machine and is respectively communicated with the return inlet and the dust removing pipeline;

the screening device is used for screening the materials conveyed by the wind power conveying pipeline into cut tobacco and dust, and respectively sending the cut tobacco and dust back to the on-site winnowing machine and the dust removing pipeline.

In at least one possible implementation manner, the screening device includes: the rolling net, the brush roller and the rotary valve plate are arranged in the shell;

the rolling net, the brush roller and the rotary valve plate synchronously rotate through a transmission mechanism arranged on the shell;

the rolling net is respectively communicated with the feeding port and the dust removing pipeline, the rotary valve plate is correspondingly arranged at the feed back inlet, and the brush roller is arranged between the rolling net and the rotary valve plate.

In at least one possible implementation, the rolling mesh is made of a multi-mesh stainless steel mesh plate with a preset pore size.

In at least one possible implementation, the brush roller is provided with spiral bristles or a soft brush plate.

In at least one possible implementation, the rotary valve plate includes a rotary drum, and a plurality of blades formed on a surface of the rotary drum and extending in a radial direction.

In at least one possible implementation, the transmission mechanism includes a gear, a chain, and a gear motor.

In at least one possible embodiment, a detachable viewing window is provided on the side of the housing.

In at least one possible embodiment, a damper with an electric angle actuator is mounted on the dust removal pipe.

In at least one possible implementation, the re-air separation system further includes a debris collection bin disposed at a lower port of the air separation shroud.

Compared with the prior art, the main design concept of the utility model is that the device consists of a belt conveyor, an air separation cover, a wind power conveying pipeline, a screening device and a dust removing pipeline, wherein the belt conveyor is arranged at a impurity outlet of an on-site winnowing machine and is communicated with the air separation cover; the two ends of the wind power conveying pipeline are respectively connected with a ventilation sub-cover and a screening device, tobacco shreds are thrown into the wind sub-cover through a belt conveyor, and tobacco shred materials reaching a suspension speed are conveyed to the screening device through the wind power conveying pipeline under the action of wind power; the screening device is arranged at a return inlet of the on-site winnowing machine and is respectively communicated with the return inlet and the dust removing pipeline, and the screening device is used for screening materials conveyed by the wind power conveying pipeline into cut tobacco and dust and respectively sending the cut tobacco and dust into the on-site winnowing machine and the dust removing pipeline. The utility model improves on the basis of the original equipment, can effectively improve the tobacco shred winnowing effect, reduces the waste problem of qualified tobacco shreds, and forms multi-stage and multi-time refined tobacco shred winnowing.

Drawings

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described with reference to the accompanying drawings, in which:

fig. 1 is a schematic diagram of a re-air separation system according to an embodiment of the present utility model.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

The present utility model proposes an embodiment of a re-air separation system, specifically, as shown in fig. 1, which includes: the device comprises a belt conveyor 1, an air separation cover 2, an air conveying pipeline 3, a screening device 4 and a dust removing pipeline 5; wherein, the belt conveyor 1 is arranged at the impurity outlet of the local winnowing machine 100 and is communicated with the winnowing cover 2; two ends of the wind power conveying pipeline 3 are respectively communicated with an upper port of the wind division cover 2 and a feed inlet of the screening device 4;

the screening device 4 is installed at a feed back inlet (not shown in the figure) formed on the on-site fanning machine 100, and the screening device 4 is respectively communicated with the feed back inlet and the dust removing pipeline 5;

the screening device 4 is used for screening the materials conveyed by the pneumatic conveying pipeline 3 into cut tobacco and dust, and sending the cut tobacco and dust back to the on-site winnowing machine 100 and the dust removing pipeline 5 respectively.

In actual operation, the screening apparatus 4 comprises: a rolling screen 42, a brush roller 43, and a rotary valve plate 44 mounted in the housing 41; the rolling net 42, the brush roller 43 and the rotary valve plate 44 are synchronously rotated by a transmission mechanism arranged on the shell 41, the rolling net 42 is respectively communicated with the feeding port and the dust removing pipeline 5, the rotary valve plate 44 is correspondingly arranged at the feed back inlet, and the brush roller 43 is arranged between the rolling net 42 and the rotary valve plate 44. The rolling net 42 is used for filtering out dust and is connected with a dust removing discharge hole in the device, so that the tobacco shred materials are prevented from being sucked away by dust removing wind pressure, and the device can be made of stainless steel net plates with the mesh diameter of 1 mm; the brush roller 43 is used for cleaning the material adsorbed on the rolling net 42, so that a negative pressure wind power passage formed by a feed inlet, the rolling net and a dust removal discharge port is prevented from being blocked, and the wind speed stability in a wind division cover below is affected, and spiral brush hairs (or soft brush plates) can be arranged on the brush roller 43, so that the rolling net is prevented from being damaged; the function of the rotary valve plate 44 is that, on the one hand, qualified tobacco filaments after re-air separation are brought back to the in-situ air separator during rotation, and on the other hand, the air field environment between the separation chamber of the in-situ air separator and the re-air separation system is blocked, so that the stability of air flow in the whole space is ensured, and based on the concept, the rotary valve plate 44 comprises a rotary cylinder and a plurality of scraping plates which are formed on the surface of the rotary cylinder and extend along the radial direction.

For the purpose of synchronously driving the three rotating members, the transmission mechanism may include a gear, a chain and a gear motor, for example, one end of the shaft of the rotary valve plate 44 may be used as an input end of power, and connected to the gear motor for driving; the other end of the shaft of the rotary valve plate 44 may be connected to a driving gear, while one end of each shaft of the rolling net 42 and the brush roller 43 is respectively provided with a driven gear and is connected by a chain, and of course, it is also understood that the shafts of the three rotary members may all adopt a self-aligning bearing with a seat as a support, which is not described and limited in detail.

Further, a detachable observation window may be provided on the side surface of the housing 41, so that the operation condition of each rotating member inside the housing can be observed conveniently, and the later maintenance is also facilitated.

Further, an air door 51 with an electric angle actuator is installed on the dust removing pipeline 5, and the size of the air door is controlled in an electric control mode, so that the air quantity and the air speed in the lower air dividing cover can be conveniently adjusted.

Finally, it may be further added that the re-winnowing system further includes a sundry collecting box 6 disposed at the lower port of the air separation cover 2, for collecting sundries, hard lumps, tobacco shreds wet lumps, etc. that do not reach the upward suspension condition.

The working mode of the present utility model is described herein by way of example with reference to the above embodiments: as mentioned above, during the working process of the on-site winnowing machine, the impurity outlet contains a large amount of qualified tobacco shreds except stem sticks, hard blocks, impurities, wet-mass tobacco shreds, etc., and if the qualified tobacco shreds are directly used as garbage to be removed, waste is caused, and economic benefit is affected.

Based on the conception of the utility model, a belt conveyor can be additionally arranged at the impurity outlet of the FS416A on-site winnowing machine, impurities which are not subjected to flotation and qualified tobacco shred materials which are removed by mistake are conveyed into the winnowing cover together, and the materials are dispersed through the throwing action of the belt conveyor. The size of the dust removal pipeline air door can be controlled by adjusting the electric angle actuator, so that the air speed in the air separation cover is stable, and qualified tobacco shred and other materials reaching the suspension speed are separated from unqualified sundries not reaching the suspension speed; the qualified tobacco shred and other materials are sent to a screening device upwards through a pipeline, tobacco shreds in the tobacco shreds are screened out through a rolling net and a brush roller and are brought into an on-site winnowing machine through a rotary valve plate, and the contained dust and smoke dust pass through the rolling net and enter an original machine dust remover (not shown) along with a dust removing pipeline; the sundries, hard blocks or tobacco shreds which do not reach the suspension speed are directly dropped to the sundry collecting box below by the air separation cover.

In summary, the main design concept of the utility model is that the device consists of a belt conveyor, an air separation cover, a wind power conveying pipeline, a screening device and a dust removing pipeline, wherein the belt conveyor is arranged at a impurity outlet of an on-site winnowing machine and is communicated with the air separation cover; the two ends of the wind power conveying pipeline are respectively connected with a ventilation sub-cover and a screening device, tobacco shreds are thrown into the wind sub-cover through a belt conveyor, and tobacco shred materials reaching a suspension speed are conveyed to the screening device through the wind power conveying pipeline under the action of wind power; the screening device is arranged at a return inlet of the on-site winnowing machine and is respectively communicated with the return inlet and the dust removing pipeline, and the screening device is used for screening materials conveyed by the wind power conveying pipeline into cut tobacco and dust and respectively sending the cut tobacco and dust into the on-site winnowing machine and the dust removing pipeline. The utility model improves on the basis of the original equipment, can effectively improve the tobacco shred winnowing effect, reduces the waste problem of qualified tobacco shreds, and forms multi-stage and multi-time refined tobacco shred winnowing.

In the embodiments of the present utility model, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relation of association objects, and indicates that there may be three kinds of relations, for example, a and/or B, and may indicate that a alone exists, a and B together, and B alone exists. Wherein A, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of the following" and the like means any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, wherein a, b and c can be single or multiple.

The construction, features and effects of the present utility model are described in detail according to the embodiments shown in the drawings, but the above is only a preferred embodiment of the present utility model, and it should be understood that the technical features of the above embodiment and the preferred mode thereof can be reasonably combined and matched into various equivalent schemes by those skilled in the art without departing from or changing the design concept and technical effects of the present utility model; therefore, the utility model is not limited to the embodiments shown in the drawings, but is intended to be within the scope of the utility model as long as changes made in the concept of the utility model or modifications to the equivalent embodiments do not depart from the spirit of the utility model as covered by the specification and drawings.

Claims

1. A re-air classification system, comprising: the device comprises a belt conveyor, an air separation cover, a wind power conveying pipeline, a screening device and a dust removing pipeline;

2. The re-air classification system of claim 1, wherein said screening means comprises: the rolling net, the brush roller and the rotary valve plate are arranged in the shell;

3. The re-air classification system of claim 2 wherein said rolling mesh is made of a multi-mesh stainless steel mesh plate having a predetermined pore size.

4. A re-air classification system according to claim 2, wherein the brush roll is provided with spiral bristles or a soft brush plate.

5. The re-air classification system of claim 2 wherein said rotary valve plate includes a rotary drum and a plurality of radially extending blades formed on a surface of said rotary drum.

6. A re-air classification system according to claim 2, wherein said transmission mechanism comprises gears, chains and a gear motor.

7. A re-air classification system according to claim 2, characterized in that a detachable viewing window is provided in the side of the housing.

8. A re-air classification system according to claim 1, characterized in that a damper with an electric angle actuator is mounted on the dust removal duct.

9. A re-air classification system according to any of claims 1-8, further comprising a debris collection bin provided at a lower port of the air classification cover.