CN212216261U - Winnowing device capable of improving winnowing efficiency and stability - Google Patents
Winnowing device capable of improving winnowing efficiency and stability Download PDFInfo
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- CN212216261U CN212216261U CN202020604218.9U CN202020604218U CN212216261U CN 212216261 U CN212216261 U CN 212216261U CN 202020604218 U CN202020604218 U CN 202020604218U CN 212216261 U CN212216261 U CN 212216261U
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Abstract
The utility model discloses a winnowing device for improving winnowing efficiency and stability, which comprises a fan and a winnowing box, wherein the side wall of the winnowing box is provided with a feed inlet with a feed airlock, the lower end of the winnowing box is provided with a vibrating screen with an impurity airlock, a static pressure box is arranged between an air outlet of the fan and the vibrating screen, and the upper end of the winnowing box is connected with a blanking box through a wire feeding pipe; an electric control air door and an air speed measuring device are arranged on the wire feeding pipe; the output end of the wind speed measuring device is electrically connected with the controller, and the output end of the controller is electrically connected with the electric control air door. Utilize the utility model discloses, when effectively improving selection by winnowing efficiency, improve selection by winnowing efficiency's stability, guarantee tobacco technology quality simultaneously to the production line installation of being convenient for.
Description
Technical Field
The utility model belongs to the technical field of the silk equipment of system, especially, relate to an improve wind selector of selection by winnowing efficiency and stability.
Background
In the tobacco shred manufacturing process, stems, wet mass, non-tobacco impurities and the like in the expanded cut tobacco need to be removed so as to improve the purity of the expanded cut tobacco, and the stems, stem blocks and the non-tobacco impurities in the stems are separated so as to improve the purity of the stems and ensure the finished product quality and yield of cigarettes. Vertical airflow winnowing machines are mostly adopted in the tobacco industry, so that the tobacco shreds are pneumatically conveyed, and meanwhile, impurities in the tobacco shreds are removed. When single particles in static fluid are settled under the action of gravity, the particles are mainly under the action of gravity, buoyancy and resistance during settlement, the gravity is consistent with the settlement direction, the buoyancy is opposite to the settlement direction, the difference value of the buoyancy and the settlement direction is the settlement force of the particles, when the particles move downwards under the settlement force, the resistance is continuously increased, the particles are quickly balanced with the settlement force, and the speed of the particles during balance is the settlement speed of the particles. In the air separator, the air flow speed is higher than the settling speed of tobacco shreds to make the tobacco shreds move along the air flow direction, and at the same time, the air flow speed is lower than the minimum settling speed for removing impurities, so that the impurity moving direction is opposite to the air flow direction, and the impurities fall to the bottom of the air separation box to be discharged out of the system.
The stability of the air volume and the air speed in the winnowing box directly influences the impurity removal efficiency. However, air leakage may occur due to an air lock in a circulating pipeline of the air separator, and a screen in the material falling device may be blocked, so that the air quantity and the air speed in the air separation box are unstable, the rejection rate of impurities in the tobacco shreds is seriously reduced, and the evaluation of the purity, the sensory quality and the style characteristics of the tobacco shreds of cigarette products is influenced.
In the actual production process, the existing air separation and impurity removal has the following problems:
(1) the tobacco shreds are mistakenly removed as impurities due to too small air speed, the tobacco shred mistaken removal rate is high, the yield is reduced, and a large amount of tobacco shreds are wasted;
(2) the air speed is too high, impurities cannot be effectively removed, the winnowing efficiency is low, the purity of tobacco shreds is low, and the product quality is influenced;
(3) after the winnowing machine operates for a period of time, the winnowing efficiency changes greatly due to air leakage and blockage of the system.
Along with the continuous development of Chinese tobacco, the high-speed cigarette making machine is commonly used, and along with the continuous emergence of market diversified demands, the cigarette making machine has higher and higher requirements on the purity of the supplied cut tobacco, and the conventional winnowing and impurity removing equipment cannot well meet the requirements of cigarette production.
Through the inquiry of the similar existing domestic and foreign technologies, the research of improving the winnowing efficiency in relevant ways exists at home and abroad. But it improves efficiency mainly through improving the selection by winnowing progression, and this can cause equipment structure more complicated, is difficult to guarantee the stability of selection by winnowing efficiency more, influences product quality.
SUMMERY OF THE UTILITY MODEL
For solving the above-mentioned problem that prior art exists, this practicality provides an air separator who improves selection by winnowing efficiency and stability, when effectively improving selection by winnowing efficiency, improves selection by winnowing efficiency's stability.
The technical scheme of the utility model as follows:
a winnowing device for improving winnowing efficiency and stability comprises a fan and a winnowing box, and is characterized in that a feed inlet with a feed airlock is arranged on the side wall of the winnowing box, a vibrating screen with a foreign matter outlet airlock is arranged at the lower end of the winnowing box, a static pressure box is arranged between an air outlet of the fan and the vibrating screen, and the upper end of the winnowing box is connected with a blanking box through a wire feeding pipe;
an electric control air door and an air speed measuring device are arranged on the wire feeding pipe; the output end of the wind speed measuring device is electrically connected with the controller, and the output end of the controller is electrically connected with the electric control air door.
The utility model discloses in the use, at first confirm the air separator box wind speed scope and the edulcoration system amount of wind scope that satisfy the technological requirement, as air separator standard amount of wind scope. The wind speed and the wind volume in the wire feeding pipe are accurately measured through the wind speed measuring device, the wind speed and the wind volume are compared with the preset standard wind volume range of the air separator, the controller adjusts the opening degree of the electric control air door in real time according to the difference value of the measured wind volume and the preset wind volume, the wind volume in the air separation box is ensured to be within the preset range, the wind speed of the air separation box is ensured to meet the process requirements, and the efficient impurity removal efficiency is maintained.
In order to make the adjustment more accurate, the electric control air doors and the wind speed measuring device are arranged at two sides of the blanking box in consideration of the influence of the blockage of the screen in the blanking device on the wind speed.
For convenience of installation and manufacture, the electric control air door is arranged at the position close to the outlet of the wire feeding pipe.
The utility model discloses in, wind speed measuring device can adopt multiple detecting instrument such as differential anemograph, amoebic flowmeter.
The initial position of the electric control air door forms an angle of 45 degrees with the axis of the wire feeding pipe.
In order to further adjust the air speed and the air quantity in the air separation box, an air supplementing opening is arranged on the static pressure box.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses an install wind speed measuring device on the silk feeding pipe in air separator exit, install automatically controlled air door on the silk feeding pipe in blanking case exit, according to the difference of measuring the amount of wind and the predetermined amount of wind, the controller adjusts the aperture of automatically controlled air door in real time, can improve the rejection rate of debris in the pipe tobacco to guarantee that debris rejection rate is high-efficient stable, promoted pipe tobacco purity, improve product quality.
Drawings
Fig. 1 is a schematic structural view of the winnowing device of the present invention for improving the winnowing efficiency and stability.
In the figure: 1-a fan, 2-an air supplement port, 3-a static pressure box, 4-an impurity discharging airlock, 5-a vibrating screen, 6-a feeding airlock, 7-a winnowing box, 8-a wire feeding pipe, 9-an air speed measuring device, 10-a blanking box, 11-an electric control air door and 12-an air outlet pipe.
Detailed Description
This application is described in further detail below with reference to the figures and examples, which are intended to facilitate an understanding of the application without limiting it in any way.
As shown in figure 1, the winnowing device capable of improving winnowing efficiency and stability comprises a fan 1 and a winnowing box 7, wherein a feeding hole with a feeding airlock 6 is formed in the side wall of the winnowing box 7, a vibrating screen 5 with an impurity discharging airlock 4 is arranged at the lower end of the winnowing box 7, a static pressure box 3 is arranged between an air outlet of the fan 1 and the vibrating screen 5, an air supplementing hole 2 is formed in the static pressure box, and the upper end of the winnowing box 7 is connected with a blanking box 10 through a wire feeding pipe 8.
An air outlet pipe 12 is arranged at the outlet of the wire feeding pipe 8, an electric control air door 11 is installed on the air outlet pipe 12, and a wind speed measuring device 9 is arranged on the wire feeding pipe 11. In this embodiment, the electrically controlled damper 11 is located at one side of the air outlet of the blanking box 10, and the wind speed measuring device 9 is located at one side of the air inlet of the blanking box 10.
The output end of the wind speed measuring device 9 is electrically connected with the controller, and the output end of the controller is electrically connected with the electric control air door 11.
In this embodiment, the wind speed measuring device 9 is a differential pressure anemometer, and the initial position of the electrically controlled damper 11 forms an angle of 45 ° with the axis of the duct. On the basis of theoretical calculation, the air speed and the air volume range of the pipeline meeting the process requirements are determined by combining experimental data and are used as the standard air volume range of the device.
The initial state of the device is in the standard air volume range, when the system runs, the differential pressure type anemoscope detects the pipeline air speed and the air volume of the wire feeding pipe 8 on line and compares the pipeline air speed and the air volume with the standard air volume range of the device, and when the air volume is in the standard range, the electric control air door 11 does not act; when the air quantity is greater than the maximum standard air quantity, the controller reduces the opening of the electric control air door 11, and the regulating quantity is determined according to the difference value between the actual air quantity and the maximum standard value; when the air quantity is smaller than the minimum value of the standard air quantity, the controller increases the opening of the electric control air door 11, and the regulating quantity is determined according to the difference value of the actual air quantity and the minimum standard value. The air quantity stability in the air separation device is improved by monitoring and regulating the air quantity in real time, so that the air separation efficiency is improved, and high efficiency and stability are maintained.
The above-mentioned embodiments are intended to illustrate the technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention and are not intended to limit the present invention, and any modifications, additions and equivalents made within the scope of the principles of the present invention should be included in the scope of the present invention.
Claims (6)
1. A winnowing device for improving winnowing efficiency and stability comprises a fan and a winnowing box, and is characterized in that a feed inlet with a feed airlock is arranged on the side wall of the winnowing box, a vibrating screen with a foreign matter outlet airlock is arranged at the lower end of the winnowing box, a static pressure box is arranged between an air outlet of the fan and the vibrating screen, and the upper end of the winnowing box is connected with a blanking box through a wire feeding pipe;
an electric control air door and an air speed measuring device are arranged on the wire feeding pipe; the output end of the wind speed measuring device is electrically connected with the controller, and the output end of the controller is electrically connected with the electric control air door.
2. The air separation device for improving the efficiency and stability of air separation according to claim 1, wherein the electrically controlled air doors and the air speed measuring device are arranged on two sides of the blanking box.
3. The air classification device for improving the efficiency and stability of air classification as claimed in claim 2, wherein the electrically controlled damper is disposed near the outlet of the wire feeding pipe.
4. The air separation device with improved air separation efficiency and stability as claimed in claim 1, wherein the air velocity measuring device is a differential pressure type air velocity meter or an amoebic flow meter.
5. The air classification device for improving the efficiency and stability of air classification as claimed in claim 1, wherein the initial position of the electrically controlled damper is at an angle of 45 degrees with the axis of the wire feeding pipe.
6. The air separation device with improved air separation efficiency and stability as claimed in claim 1, wherein the static pressure box is provided with an air supply opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020604218.9U CN212216261U (en) | 2020-04-21 | 2020-04-21 | Winnowing device capable of improving winnowing efficiency and stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020604218.9U CN212216261U (en) | 2020-04-21 | 2020-04-21 | Winnowing device capable of improving winnowing efficiency and stability |
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| CN212216261U true CN212216261U (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020604218.9U Active CN212216261U (en) | 2020-04-21 | 2020-04-21 | Winnowing device capable of improving winnowing efficiency and stability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115121480A (en) * | 2022-06-28 | 2022-09-30 | 燕龙基(徐州)再生资源利用有限公司 | Cullet particle screening equipment, air duct used by cullet particle screening equipment and control method of air duct |
-
2020
- 2020-04-21 CN CN202020604218.9U patent/CN212216261U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115121480A (en) * | 2022-06-28 | 2022-09-30 | 燕龙基(徐州)再生资源利用有限公司 | Cullet particle screening equipment, air duct used by cullet particle screening equipment and control method of air duct |
| CN115121480B (en) * | 2022-06-28 | 2024-01-09 | 燕龙基(徐州)再生资源利用有限公司 | Control method of broken glass particle screening equipment |
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