Segmented air selection device and control method thereof

Abstract

The present invention discloses a segmented air selection device and a control method thereof, wherein the segmented air selection device comprises a primary air selection device arranged on a frame; a vibrating conveying device arranged on the frame and a feeding port of the vibrating conveying device is located below a screening port of the primary air selection device; a secondary air selection device is connected to a discharging port of the vibrating conveying device; an air delivery pipeline comprises a primary air delivery pipeline and a secondary air delivery pipeline, one end of the primary air delivery pipeline is connected to the discharging port of the primary air selection device, and one end of the secondary air delivery pipeline is connected to the discharging port of the secondary air selection device; a dropper is connected to the other end of the primary air delivery pipeline and the other end of the secondary air delivery pipeline; at least one of the primary air delivery pipeline and the secondary air delivery pipeline is provided with an air supply component, and the air supply component is configured to adjust the wind speed in the primary air delivery pipeline and / or the secondary air delivery pipeline. The segmented air selection device according to the embodiment of the present invention has a simple structure, small footprint, low adjustment difficulty, and a stable air selection effect.

Description

Technical Field

[0001] The invention relates to the field of tobacco shred processing, and in particular to a segmented air selection device and a control method thereof. Background Art

[0002] In the current cigarette production process, the stems contained in the shredded tobacco will cause the finished cigarette weight to be off-standard and the cigarettes to be loose, and the cigarettes will burst and tilt when burning, which seriously affects the quality of cigarette rolling. In order to improve product quality, the stems and other debris mixed in the shredded tobacco must be removed. The method of removing the stems from the shredded tobacco is generally to use the wind selection method instead of the traditional manual stem removal method, that is, to use the difference in the suspension speed of the shredded tobacco and the stems in the airflow for wind selection.

[0003] In the related art, the power wind for the first and second level air separation in the air separation equipment comes from the same system, and the wind force needs to be matched, which makes the adjustment difficult and requires professionals to make adjustments for a long time. At the same time, during the production process, the fluctuation of tobacco flow, moisture content and the change of the proportion of entangled silk balls in the material will also cause the wind strength inside the air separation box to fluctuate, affecting the rejection accuracy of the equipment and the stability of the air separation effect. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a segmented air separation device, which has a simple structure, a small footprint, low adjustment difficulty, and a stable air separation effect.

[0005] The present invention also proposes a control method using the above-mentioned segmented air selection device.

[0006] According to the first aspect of the present invention, the segmented air separation device comprises: a frame; a primary air separation device, which is arranged on the frame; a vibrating conveying device, which is arranged on the frame and the feeding port of the vibrating conveying device is located below the screening port of the primary air separation device; a secondary air separation device, which is arranged on the frame and the feeding port of the secondary air separation device is connected with the discharging port of the vibrating conveying device; an air delivery pipeline, which comprises a primary air delivery pipeline and a secondary air delivery pipeline, one end of the primary air delivery pipeline is connected with the discharging port of the primary air separation device, and one end of the secondary air delivery pipeline is connected with the discharging port of the secondary air separation device; a dropper, which is connected with the other end of the primary air delivery pipeline and the other end of the secondary air delivery pipeline; an air supply component, at least one of the primary air delivery pipeline and the secondary air delivery pipeline is provided with the air supply component, and the air supply component is configured to adjust the wind speed in the primary air delivery pipeline and / or the secondary air delivery pipeline.

[0007] According to the segmented air separation device of the embodiment of the present invention, the floor space occupied can be effectively reduced by arranging the primary air separation device and the secondary air separation device on the same frame. At the same time, by arranging an air supply component, the primary air delivery pipeline and / or the secondary air delivery pipeline are supplied with air by the air supply component to adjust the wind speed in the primary air delivery pipeline and / or the secondary air delivery pipeline, thereby reducing the difficulty of wind force regulation in related technologies and improving the stability of air separation control and the effect of material air separation.

[0008] According to some embodiments of the present invention, the air supply component includes a wind speed detection device and an air supply device, the wind speed detection device is used to detect the wind speed in the primary air supply pipeline or the secondary air supply pipeline, and the air supply device is connected to the wind speed detection device and adjusts the wind speed in the primary air supply pipeline or the secondary air supply pipeline.

[0009] According to some examples of the present invention, the air supply component includes a first-level air supply component and a second-level air supply component. The first-level air supply component is arranged in the first-level air supply pipeline and the first-level air supply component supplies air according to the wind speed in the first-level air supply pipeline. The second-level air supply component is arranged in the second-level air supply pipeline and the second-level air supply component supplies air according to the wind speed in the second-level air supply pipeline.

[0010] According to some examples of the present invention, the first-level air separation device includes a first-level air separation box, the second-level air separation device includes a second-level air separation box, the first-level air separation box and the second-level air separation device are both arranged on the frame, and the height of the feed port of the second-level air separation box in the vertical direction is not higher than the height of the feed port of the first-level air separation box.

[0011] According to some examples of the present invention, the segmented air separation device also includes a primary thrower and a secondary thrower, the primary thrower is arranged adjacent to the feed inlet of the primary air separation box, the discharge port of the vibrating conveying device is connected to the secondary thrower and the secondary thrower is arranged adjacent to the feed inlet of the secondary air separation box.

[0012] According to some examples of the present invention, the segmented air separation device also includes a material weight detection device, which is arranged adjacent to the screening port of the secondary air separation box and is used to detect the material weight at the screening port of the secondary air separation box. The secondary air supply component is connected to the material weight detection device to adjust the wind speed in the secondary air delivery pipeline according to the material weight at the screening port of the secondary air separation box.

[0013] According to some examples of the present invention, the segmented air separation device also includes a front-end material detection device, which is arranged adjacent to the feed port of the first-level air separation box and is used to detect the flow rate and moisture content of the material, and the air supply component is connected to the front-end material detection device to adjust the wind speed in the first-level air delivery pipeline and the second-level air delivery pipeline according to the detection value of the front-end material detection device.

[0014] According to some examples of the present invention, the segmented air selection device further includes a dust removal adjustment device, and the dust removal adjustment device is connected to the other end of the air delivery pipeline.

[0015] According to the control method of the segmented air separation device of the second embodiment of the present invention, the segmented air separation device of the first embodiment of the present invention is adopted, and includes the following steps: S1, throwing the material into the primary air separation device; S2, the primary air separation device performs air separation and separation on the material, wherein a part of the material enters the primary air conveying pipeline and the other part enters the feed port of the secondary air separation device; S3, the secondary air separation device performs secondary air separation and separation on the material separated by the primary air separation device, wherein a part of the material enters the secondary air conveying pipeline after separation, and the other part is discharged through the screening port; S4, detecting the wind speed in the primary air conveying pipeline and / or the secondary air conveying pipeline, and detecting the weight of the rejected material at the screening port of the secondary air separation device; S5, adjusting the wind speed in the primary air conveying pipeline according to the change of wind speed and / or adjusting the wind speed in the secondary air conveying pipeline according to the change of wind speed and the weight of the rejected material; S6, conveying the material in the air conveying pipeline to the dropper and the dust removal adjustment device.

[0016] According to the control method of the segmented air separation device of the embodiment of the present invention, the wind speed in the primary air delivery duct and the secondary air delivery duct and the weight of the rejected materials are detected, and the wind speed in the primary air delivery duct is adjusted according to the wind speed change and / or the wind speed in the secondary air delivery duct is adjusted according to the wind speed change and the weight of the rejected materials, thereby effectively simplifying the difficulty of wind control and improving the air separation stability and rejection accuracy.

[0017] According to some examples of the present invention, the step S1 also includes: S11, detecting the flow rate and moisture content of the material at the feed port of the air selection device, and correcting the wind speed in the primary air delivery pipeline and / or the secondary air delivery pipeline according to the flow rate and moisture content of the material.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a schematic diagram of a segmented air separation device according to an embodiment of the present invention;

[0021] Reference numerals:

[0022] Segmented air separation device 100;

[0023] Material weight detection device 1; first-level wind speed detection device 2; first-level air supply device 3; second-level wind speed detection device 4;

[0024] Secondary air supply device 5; dust removal adjustment device 6; primary air selection device 7; secondary air selection device 8;

[0025] Primary air delivery pipeline 9; secondary air delivery pipeline 10; dropper 11; primary thrower 12; vibration conveying device 13;

[0026] Secondary ejector 14. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] The following describes a segmented air separation device 100 according to an embodiment of the first aspect of the present invention with reference to the accompanying drawings. The segmented air separation device 100 is mainly used in tobacco processing.

[0029] like Figure 1 According to an embodiment of the present invention, the segmented air separation device 100 includes a frame, a primary air separation device 7, a vibration conveying device 13, a secondary air separation device 8, an air conveying pipeline, a dropper 11 and an air supply component.

[0030] The primary air separation device 7 and the secondary air separation device 8 are arranged separately on the same frame, thereby reducing the occupied ground area. The vibrating conveying device 13 is arranged on the frame. For example, the vibrating conveying device 13 can be a vibrating screen. The vibrating screen mesh adopts a segmented staggered design to ensure sufficient air separation space for tobacco. The feed port of the vibrating conveying device 13 is located below the screening port of the primary air separation device 7, so that the materials entering the primary air separation device 7, such as tobacco, are separated by the suspension speed difference between tobacco and stems under the action of wind, thereby realizing the primary air separation. The stems and part of the tobacco (such as silk balls, wet balls) after the primary selection can sink to the vibrating conveying device 13. The feed port of the secondary air separation device 8 is connected with the discharge port of the vibrating conveying device 13, so that the materials after the primary selection can be transported to the secondary air separation device 8 through the vibrating conveying device 13 for secondary precision air separation.

[0031] Furthermore, the air delivery pipeline includes a primary air delivery pipeline 9 and a secondary air delivery pipeline 10, one end of the primary air delivery pipeline 9 is connected to the discharge port of the primary air selection device 7, and one end of the secondary air delivery pipeline 10 is connected to the discharge port of the earphone air selection device, the primary air delivery pipeline 9 and the secondary air delivery pipeline 10 are arranged spaced apart from each other, and the other end of the primary air delivery pipeline 9 and the other end of the secondary air delivery pipeline 10 are both connected to a dropper 11, and the dropper 11 can be a sedimentation type dropper. At the same time, an air supply component is provided on at least one of the primary air delivery pipeline 9 and the secondary air delivery pipeline 10, so that the actual wind speed in the primary air delivery pipeline 9, the secondary air delivery pipeline 10 or the primary air delivery pipeline 9 and the secondary air delivery pipeline 10 is adjusted by using the air supply component, thereby further improving the air selection accuracy and rejection accuracy. Compared with the air selection equipment in the related technology, the difficulty of wind control can be effectively reduced.

[0032] Therefore, according to the segmented air separation device 100 of the embodiment of the present invention, by arranging the primary air separation device 7 and the secondary air separation device 8 on the same frame, the occupied area can be effectively reduced. At the same time, by arranging an air supply component, the primary air delivery pipeline 9 and / or the secondary air delivery pipeline 10 are supplied with air by the air supply component to adjust the wind speed in the primary air delivery pipeline 9 and / or the secondary air delivery pipeline 10, thereby reducing the difficulty of wind force regulation in related technologies and improving the stability of air separation control and the effect of material air separation.

[0033] like Figure 1 In some embodiments of the present invention, the air supply component is mainly composed of a wind speed detection device and an air supply device. Preferably, the air supply component may include a first-level air supply component and a second-level air supply component. The first-level air supply component is arranged in the first-level air supply pipeline 9, and the second-level air supply component is arranged in the second-level air supply pipeline. The first-level air supply component includes a first-level wind speed detection device 2 and a first-level air supply device 3. The second-level air supply component includes a second-level wind speed detection device 4 and a second-level air supply device 5. The first-level wind speed detection device 2 and the second-level wind speed detection device 4 are used to detect the wind speed in the first-level air supply pipeline 9. The first-level air supply device 3 is connected to the first-level wind speed detection device 2 and adjusts the wind speed in the first-level air supply pipeline 9. The second-level wind speed detection device 4 and the second-level wind speed detection device 4 are used to detect the wind speed in the second-level air supply pipeline 10. The second-level air supply device 5 is connected to the second-level wind speed detection device 4 and adjusts the wind speed in the second-level air supply pipeline 10.

[0034] like Figure 1In some examples, the first-level air separation device 7 includes a first-level air separation box, and the second-level air separation device 8 includes a second-level air separation box. Both the first-level air separation box and the second-level air separation box are provided with feed ports and are spaced apart on the frame. The feed port of the second-level air separation box is not higher than the feed port of the first-level air separation box in the vertical direction, so as to facilitate the vibration conveying device 13 to transport the material after preliminary air separation by the first-level air separation device 7.

[0035] like Figure 1 In some examples, in order to facilitate the feeding of materials and increase the degree of dispersion of materials after entering the primary air separation device 7 and the secondary air separation device 8, so as to facilitate the separation of stems and tobacco shreds, the segmented air separation device 100 also includes a primary ejector 12 and a secondary ejector 14, the primary ejector 12 is arranged adjacent to the feed port of the primary air separation box, the discharge port of the vibrating conveying device 13 is connected to the secondary ejector 14 and the secondary ejector 14 is arranged adjacent to the feed port of the secondary air separation box.

[0036] In some instances, in order to further improve the air separation accuracy and rejection effect, the segmented air separation device 100 also includes a material weight detection device 1, which is arranged adjacent to the screening port of the secondary air separation box, and the secondary air supply component is connected to the material weight detection device 1, so that the wind speed setting of the secondary air supply device 5 can be corrected in time according to the weight change of the rejected material after the secondary air separation detected by the material weight detection device 1, so as to achieve a stable air separation effect.

[0037] Optionally, the segmented air separation device 100 also includes a front-end material detection device, which is arranged adjacent to the feed port of the first-level air separation box and is used to detect the flow and moisture of the material. The air supply component (including the first-level air supply component and the second-level air supply component) is connected to the front-end material detection device to adjust the wind speed in the first-level air delivery pipeline 9 and the second-level air delivery pipeline 10 according to the detection value of the front-end material detection device, thereby further improving the stability of the air separation effect.

[0038] like Figure 1 In some embodiments, a dust removal regulating device 6 is also included. The dust removal regulating device 6 is connected to the other end of the air delivery pipeline through a pipeline, so that the materials after preliminary selection by the first-level air separation device 7 and selection by the second-level air separation device 8 can be dusted. At the same time, the dust removal regulating device 6 can also be used to control the total air volume in the air delivery pipeline, thereby adjusting the overall wind speed to a certain extent.

[0039] The following is combined with Figure 1 The control method of the segmented air selection device 100 according to the second embodiment of the present invention is described.

[0040] The control method comprises the following steps:

[0041] S1, throwing the material into the first-level air separation device;

[0042] S2, the primary air separation device separates the materials by air separation, a part of the materials enters the primary air delivery pipeline and the other part enters the feed inlet of the secondary air separation device;

[0043] S3, the secondary air separation device performs secondary air separation on the materials separated by the primary air separation device, wherein a part of the materials enters the secondary air delivery pipeline after separation, and the other part is discharged through the screening port;

[0044] S4, detecting the wind speed in the primary air delivery pipeline and / or the secondary air delivery pipeline, and detecting the weight of the rejected materials at the screening port of the secondary air separation device;

[0045] S5, adjusting the wind speed in the primary air delivery pipeline according to the wind speed change and / or adjusting the wind speed in the secondary air delivery pipeline according to the wind speed change and the weight of the rejected material;

[0046] S6, transporting the materials in the air conveying pipeline to the dropper and the dust removal regulating device.

[0047] Therefore, according to the control method of the segmented air selection device 100 of the embodiment of the present invention, by detecting the wind speed in the primary air delivery pipeline and the secondary air delivery pipeline and the weight of the rejected materials, and adjusting the wind speed in the primary air delivery pipeline according to the wind speed change and / or adjusting the wind speed in the secondary air delivery pipeline according to the wind speed change and the weight of the rejected materials, it effectively simplifies the difficulty of wind control and improves the air selection stability and rejection accuracy.

[0048] According to some examples of the present invention, step S1 further includes: S11, detecting the flow rate and moisture content of the material at the feed port of the air selection device, and correcting the wind speed in the primary air delivery pipeline and / or the secondary air delivery pipeline according to the flow rate and moisture content of the material, thereby further improving the stability of the air selection effect.

[0049] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0050] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0051] In the description of the present invention, "plurality" means two or more.

[0052] In the description of the present invention, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0053] In the description of the present invention, “on”, “over” and “above” a first feature from a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0054] Other configuration examples and operations of the segmented air separation device 100 and its control method according to the embodiment of the present invention are well known to ordinary technicians in the field and will not be described in detail here.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0056] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A segmented air separation device, characterized in that: include: frame; A primary air separation device, the primary air separation device is arranged on the frame; A vibrating conveying device, wherein the vibrating conveying device is arranged on the frame and the feed port of the vibrating conveying device is located below the screening port of the primary air separation device; A secondary air separation device, wherein the secondary air separation device is arranged on the frame and the feed inlet of the secondary air separation device is connected with the discharge outlet of the vibrating conveying device; An air delivery pipeline, the air delivery pipeline includes a primary air delivery pipeline and a secondary air delivery pipeline, one end of the primary air delivery pipeline is connected to the discharge port of the primary air selection device, and one end of the secondary air delivery pipeline is connected to the discharge port of the secondary air selection device; A material dropper, the material dropper is connected to the other end of the primary air delivery pipeline and the other end of the secondary air delivery pipeline; An air supply component, at least one of the primary air delivery pipeline and the secondary air delivery pipeline is provided with the air supply component, and the air supply component is configured to adjust the wind speed in the primary air delivery pipeline and / or the secondary air delivery pipeline, wherein the primary air selection device and the secondary air selection device are arranged separately on the same rack, and the air supply component includes a wind speed detection device and an air supply device, the wind speed detection device is used to detect the wind speed in the primary air delivery pipeline or the secondary air delivery pipeline, and the air supply device is connected to the wind speed detection device The air supply component is connected to and adjusts the wind speed in the primary air supply pipeline or the secondary air supply pipeline, the air supply component includes a primary air supply component and a secondary air supply component, the primary air supply component is arranged in the primary air supply pipeline and the primary air supply component supplies air according to the wind speed in the primary air supply pipeline, the secondary air supply component is arranged in the secondary air supply pipeline and the secondary air supply component supplies air according to the wind speed in the secondary air supply pipeline, the primary air supply pipeline and the secondary air supply pipeline are arranged spaced apart from each other, and the primary air supply pipeline is optional The device includes a primary air separation box, and the secondary air separation device includes a secondary air separation box. The primary air separation box and the secondary air separation device are both arranged on the frame. The height of the feed port of the secondary air separation box in the vertical direction is not higher than the height of the feed port of the primary air separation box. It also includes a material weight detection device, which is arranged adjacent to the screening port of the secondary air separation box and is used to detect the material weight at the screening port of the secondary air separation box. The secondary air supply component is connected to the material weight detection device to adjust the wind speed in the secondary air delivery pipeline according to the material weight at the screening port of the secondary air separation box. It also includes a front-end material detection device, which is arranged adjacent to the feed port of the primary air separation box and is used to detect the flow rate and moisture of the material. The air supply component is connected to the front-end material detection device to adjust the wind speed in the primary air delivery pipeline and the secondary air delivery pipeline according to the detection value of the front-end material detection device. It also includes a dust removal adjustment device, and the dust removal adjustment device is connected to the other end of the air delivery pipeline.

2. The segmented air separation device according to claim 1, characterized in that: It also includes a primary thrower and a secondary thrower, wherein the primary thrower is arranged adjacent to the feed inlet of the primary air separation box, the discharge port of the vibrating conveying device is connected to the secondary thrower, and the secondary thrower is arranged adjacent to the feed inlet of the secondary air separation box.

3. A control method for a segmented air selection device, using the segmented air selection device according to any one of claims 1-2, characterized in that: The following steps are involved: S1, throwing the material into the primary air separation device, the step S1 also includes: S11, detecting the flow rate and moisture of the material at the feed inlet of the primary air separation device, and correcting the wind speed in the primary air delivery pipeline and / or the secondary air delivery pipeline according to the flow rate and moisture of the material; S2, the primary air separation device separates the materials by air separation, a part of the materials enters the primary air delivery pipeline and the other part enters the feed inlet of the secondary air separation device; S3, the secondary air separation device performs secondary air separation on the materials separated by the primary air separation device, wherein a part of the materials enters the secondary air delivery pipeline after separation, and the other part is discharged through the screening port of the secondary air separation box; S4, detecting the wind speed in the primary air delivery pipeline and / or the secondary air delivery pipeline, and detecting the weight of the rejected materials at the screening port of the secondary air separation box; S5, adjusting the wind speed in the primary air delivery pipeline according to the wind speed change and / or adjusting the wind speed in the secondary air delivery pipeline according to the wind speed change and the weight of the rejected material; S6, transporting the materials in the air conveying pipeline to the dropper and the dust removal regulating device.

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