WO2022073250A1

WO2022073250A1 - Device for removing light flakes in cut rolled stems by using flow guide plate, and method

Info

Publication number: WO2022073250A1
Application number: PCT/CN2020/120929
Authority: WO
Inventors: 刘泽; 何邦华; 邱昌桂; 李拥政; 朱勇; 唐习书; 周沅桢; 祁林; 陈进; 唐军; 黄岗; 周冰; 陈德山
Original assignee: 云南中烟工业有限责任公司
Priority date: 2020-10-10
Filing date: 2020-10-14
Publication date: 2022-04-14
Also published as: CN112089089A; CN112089089B

Abstract

Disclosed in the present invention is a device for removing light flakes in cut rolled stems by using a flow guide plate, comprising: a vertically placed separation drum (T), and a cut rolled stem flow guide plate (1) and a cut rolled stem distribution plate (2) arranged inside the separation drum (T). Also disclosed in the present invention is a method for removing light flakes in cut rolled stems by using the device in the present invention. Use of the device in the present invention allows for sufficient separation of finished cut rolled stems and light flakes. The device in the present invention is designed for the first time, occupies a small area, and is beneficial to industrial production.

Description

A device and method for removing light flakes from cut stems using a deflector

technical field

The invention belongs to the technical field of tobacco processing, and in particular relates to a device and method for removing light flakes from cut stems by using a deflector.

Background technique

Cut stems have always been positioned as an important filler in the structure of tobacco formulations. Various companies have increased the use ratio and use value of cut stems by processing cut stems with high filling and high filamentary ratio, and continued to reduce the cost of tobacco formulation and processing. At the same time, it also regulates physical quality such as gram weight of cigarettes and smoke indicators such as tar.

In the actual production process, the quality of incoming tobacco stems is affected by the processing technology level and quality control level of threshing and redrying enterprises. The content of unqualified tobacco stems such as stems and thin stems is relatively high, and due to the restrictions of the industrial and commercial system of the cigarette industry, cigarette manufacturers cannot conduct quality control of incoming tobacco stems (except for enterprises with industrial threshing and redrying plants). In this context, the problem of incoming tobacco stems has not been effectively improved. Under the current state of the art, this part of the tobacco stems enters the cigarette manufacturing process, and the unqualified tobacco stems cannot be completely eliminated, resulting in the processed finished cut stems in the light slices (often called "fly slices" in production enterprises, see The photo on the right in Figure 1) has a relatively large content, showing defects such as many flakes, white color, low density, and easy breakage. At present, most cigarette manufacturers have improved the production of light flakes by developing technologies such as online multi-layer vibrating screen to remove unqualified cut stems, optimize stem pressing and cutting processes, and reduce stem expansion and dry strength, but have not produced significant reduction in light flakes. Effect.

Cigarettes with a high proportion of light flakes have a greater negative impact on brand value, which is also one of the important indicators for consumers to perceive brand image and cigarette price structure. Therefore, the flakes must be removed or controlled to a lower ratio.

In order to solve the above problems, the present invention designs a device for removing light flakes from cut stems using a deflector and a method for using the device to remove light flakes from cut stems.

SUMMARY OF THE INVENTION

The present invention provides a device for removing light flakes from cut stems using a deflector on-line, which is designed for the first time. After the device is used to remove light flakes, the appearance and color of the obtained finished cut stems are closer to leaf cutlets, and the color consistency of the cut stems is obviously improved, and the obtained finished cut stems have high density, high filling value, and good mixing effect with cut tobacco. The value has increased significantly.

The object of the present invention is achieved through the following technical solutions:

The first aspect of the present invention discloses a device for removing light flakes from cut stems using a deflector, which comprises: a vertically placed separation drum T and a stem stem deflector 1 and stems arranged inside the separation drum T Wire distribution plate 2;

The cut stem guide plate 1 and the cut stem distribution plate 2 are both cambered and have a plurality of ventilation holes 11, 21 evenly distributed thereon;

The upper part of the cut stem guide plate 1 is the cut stem feed port T1 for guiding the cut stems coming in from the feed port T1, and the bottom of the cut stem guide plate 1 is provided with a positive pressure fan T11 so that the The positive pressure air enters the concave arc surface of the cut stem guide plate 1 evenly through the ventilation hole 11; the upper part of the cut stem distribution plate 2 is an air suction port T2, and a suction fan T22 is provided outside the air suction port T2; The cut stem distribution plate 2 is arranged at the lower side of the cut stem guide plate 1 , and its concave arc surface is opposite to the concave arc surface of the cut cut guide plate 1 .

Preferably, the opening ratios of the ventilation holes 11 and 21 of the cut stem guide plate 1 and the cut stem distribution plate 2 are both 5.0-20.0%.

Preferably, the angle of the tangential plane of the convex arc surface of the cut stem guide plate 1 with respect to the horizontal plane can be adjusted.

Preferably, the blowing direction and blowing air volume of the positive pressure fan (T11) can be adjusted.

Preferably, the angle of the tangential plane of the convex arc surface of the cut stem distribution plate 2 with respect to the horizontal plane can be adjusted.

Preferably, the suction speed of the suction fan T22 is adjustable.

Preferably, there is a material guide plate 3 at the bottom of the separation drum T, and the bottom of the material guide plate 3 is a discharge port T3 , and the discharge port T3 is located at the lower part of the cut stem distribution plate 2 .

Preferably, the separation drum T is cylindrical.

The second aspect of the present invention discloses a method for removing light flakes from cut stems by using the above device, including the following steps: turning on the positive pressure fan T11 and the exhaust fan T22, adjusting the wind speed, and the cut stems coming in from the feed port T1 under the action of gravity The concave arc surface of the cut stem guide plate 1 slides down, and the positive pressure air generated by the positive pressure fan T11 at the lower part of the cut stem guide plate 1 passes through the ventilation hole 11 and enters into the concave arc surface of the cut stem guide plate 1 evenly. The uniform wind pressure makes the cut stems appear "swelling" discretely, and is guided into the concave arc surface of the cut stem distribution plate 2; The uniform air holes 21 flow to the concave arc surface of the cut stem distribution plate 2, and monolayer and discretized cut stems are formed on the upper part of the concave arc surface of the distribution plate 2; T2, the remaining finished cut stems fall into the guide plate 3 by gravity, and then are discharged from the discharge port T3.

Adjust the angle of the tangential surface of the convex arc surface of the deflector 1 relative to the horizontal plane, the blowing direction and air volume of the positive pressure fan T11, the angle of the tangential plane of the convex arc surface of the cut stem distribution plate 2 relative to the horizontal plane, and the blowing fan T22. The exhaust air volume can be separated to obtain finished cut stems in any proportion.

The beneficial effects of the present invention

1. The device of the present invention can remove the light flakes in the cut stems by using the negative pressure wind of the cut stem dust removal pipeline, so as to realize the full separation of the finished cut stems and the light flakes. The device of the present invention is designed for the first time, and can be directly connected to the cut stem dedusting section of the production line. The device occupies a small area, which is beneficial to industrial production.

2. The cut stem guide plate of the device of the present invention is ingeniously designed and used, the uniform opening rate on it is 5.0%-20.0%, and the positive pressure fan T11 is arranged under the convex arc surface. The cut stems coming in from the feed port T1 slide down along the concave arc surface of the cut stem guide plate 1 under the action of gravity, and the positive pressure air generated by the positive pressure fan T11 passes through the ventilation holes 11 and evenly enters the cut stem guide plate 1. The uniform wind pressure is formed in the concave arc surface, which makes the cut stems show a "swelling" phenomenon and realizes the discrete state of the cut stems.

3. The cut stem distribution plate of the device of the present invention is ingeniously designed, and the uniform opening rate on it is 5.0%-20.0%. The cut stem distribution plate is a concave arc surface with a concave arc surface facing the cut stem guide plate 1, and the wind flows from the lower part through the uniform air holes to the concave arc surface of the cut stem distribution plate to form a uniformly distributed wind pressure, and the cut stems are distributed in the cut stems. A positive pressure is formed on the concave arc surface of the plate, so that the cut stems from the tossed stems are in flexible contact with the concave arc surface, and the cut stems are no longer easily broken.

4. The discharge port of the device of the present invention is arranged at the lower part of the cut stem distribution plate, and the wind entering from the discharge port flows from the cut stem distribution plate through the uniform air holes to the concave arc surface of the cut stem distribution plate, forming a uniform distribution of air. The wind pressure further makes the cut stems thrown by the throwing roller come into contact with the concave arc surface flexibly, and the cut stems are no longer easily broken.

5. Using the device of the present invention to separate the cut stems has no influence on the smoothness of the conveying of the materials on the production line, and the moisture of the cut stems is not lost during the processing; The density is high, the processing resistance is improved, and the filling value is increased, the color of the finished cut stems and cut stems is closer to that of the cut stems, and the blending effect of the finished cut stems and the cut stems is more uniform. The use value of cut stems has increased significantly.

6. Using the device of the present invention to separate the cut stems can not only separate the thin cut stems in the cut stems, but also adjust the air volume of the positive pressure fan, the air volume of the exhaust fan, the cut stem distribution plate and the cut stem diversion. The angle of the plate, etc., can also remove the denser components in the cut stem, such as cut stem sticks in the cut stem, wet mass cut stem and other debris. The device of the present invention can thus have multiple functions.

Description of drawings

Figure 1 is a comparison photo of normal cut stems (left) and light slices (right).

Fig. 2 is a schematic diagram of the device for removing light flakes from cut stems using a baffle plate according to the present invention.

Figure 3 is a schematic diagram of the cut stem guide plate of the present invention.

Figure 4 is a schematic diagram of the cut stem distribution plate of the present invention.

Fig. 5 is a comparative photograph of finished cut stems (left) after balm rejection using the device of the present invention and incoming cut stems (right) without rejection.

The reference signs are: 1, cut stem guide plate; 11, ventilation hole; 2, cut stem distribution plate; 21, ventilation hole; 3, material guide plate; T1, feed inlet; T11, positive pressure fan; T2, Air suction port; T22, exhaust fan; T3, discharge port.

Detailed ways

In order to make the objectives, technical solutions and beneficial results of the present invention clearer, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. However, the accompanying drawings and the embodiments do not limit the technical solutions of the present invention, and any transformation or improvement based on the teachings of the present invention falls within the protection scope of the present invention.

As shown in Figure 2, a device for removing light flakes from cut stems using a deflector, which includes the steps of: a vertical cylindrical separating drum T and a stem cutting guide arranged inside the separating drum T Plate 1 and cut stem distribution plate 2; the upper part of the cut stem guide plate 1 is the cut stem feed port T1 for guiding the cut stems coming in from the feed port T1, the cut stem guide plate 1 The bottom is provided with a positive pressure fan T11 so that the positive pressure air evenly enters the concave arc surface of the cut stem guide plate 1 through the ventilation hole 11; the upper part of the cut stem distribution plate 2 is the air suction port T2, A suction fan T22 is provided outside T2; the cut stem distribution plate 2 is arranged at the lower side of the cut stem guide plate 1, and its concave arc surface is opposite to the concave arc surface of the cut stem guide plate 1. A material guide plate 3 is arranged at the bottom of the separation drum T, and the bottom of the material guide plate 3 is a discharge port T3 , and the discharge port T3 is located at the lower part of the cut stem distribution plate 2 . The angle of the tangential surface of the convex curved surface of the cut stem guide plate 1 can be adjusted relative to the horizontal plane, the blowing direction and air volume of the positive pressure fan T11 can be adjusted, and the tangential surface of the convex curved surface of the cutting stem distribution plate 2 is relative to the horizontal plane. The angle of the exhaust fan T22 can be adjusted.

As shown in Figures 3 and 4, the cut stem guide plate 1 and the cut stem distribution plate 2 are both cambered and have a plurality of ventilation holes 11, 21 evenly distributed thereon; The opening rate is 5.0-20.0%; the materials are all 307 stainless steel, and the shapes are all rectangular camber; but the area of the cut stem distribution plate 2 is larger than that of the cut stem guide plate 1.

Multiple access doors can be set on the wall of the separation drum T, through which the fluidization and discrete state of the cut stem flow can be monitored, the transmission and pneumatic conveying device maintenance, and the daily maintenance of components can be carried out.

The method for removing light flakes from cut stems includes the following steps: turn on the positive pressure fan T11 and the exhaust fan T22, adjust the blowing air volume of the positive pressure fan T11 and the exhaust air volume of the exhaust fan T22, and adjust the convex arc surface of the cut stem guide plate 1. The angle of the cut surface relative to the horizontal plane is 60°, the angle of the convex arc surface of the cut stem distribution plate 2 relative to the horizontal plane is 45°, the fan opening of the exhaust fan T22 is 30%, and the exhaust speed is 6m/s～17m /s range. The cut stems coming in from the feed inlet T1 slide down the concave arc surface of the cut stem guide plate 1 under the action of gravity, and the positive pressure air generated by the positive pressure fan T11 at the lower part of the cut stem guide plate 1 enters through the uniform ventilation hole 11. The uniform wind pressure is formed in the concave arc surface of the cut stem guide plate 1, so that the cut stems are in a "swelling" discrete shape, and are guided into the concave arc surface of the cut stem distribution plate (2); The ventilation effect of the exhaust fan T22, the wind flows from the lower part of the cut stem distribution plate 2 through the uniform air holes 21 to the concave arc surface of the cut stem distribution plate 2, and a single layer is formed on the upper part of the concave arc surface of the cut stem distribution plate (2). and discretized cut stems; at this time, the light slices in the cut stems are sucked into the air suction port T2, and the remaining finished cut stems fall into the guide plate 3 by gravity and then are discharged from the discharge port T3; the discharge port T3 can be connected to the equipment on the original production line.

The result of using the device of the present invention for removing light slices from cut stems on-line using a deflector is that the separation amount of the cut stems is 345.9kg/batch, and the weight of the obtained finished cut stems is 3025.1kg/batch. The ratio of the output ratio of the weight of the thin sliced cut stems to the weight of the finished cut stems is 345.9/(345.9+3025.1)=10.26%, and the removal effect is shown in the photo in Figure 5. As shown in the left photo of Figure 5, the appearance of normal cut stems (finished cut stems) after removing the light flakes is uniform and consistent, which is closer to the color of leaf silk. The purpose of the patent is intended to remove light flakes from normal cut stems. As shown in the right photo of Figure 5, the cut stems with light flakes are flaky, white in color, and low in density.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

A device for removing light flakes from cut stems using a deflector, characterized in that it comprises: a vertically placed separation drum (T) and a stem stem deflector (1) arranged inside the separation drum (T). ) and cut stem distribution plate (2);

The cut stem guide plate (1) and the cut stem distribution plate (2) are both cambered and have a plurality of ventilation holes (11, 21) evenly distributed thereon;

The upper part of the cut stem guide plate (1) is a cut stem feed port (T1) for guiding the cut cut stems coming in from the feed port (T1). A positive pressure fan (T11) is provided at the bottom so that the positive pressure air enters the concave arc surface of the cut stem guide plate (1) evenly through the ventilation hole (11); the upper part of the cut stem distribution plate (2) It is an air suction port (T2), and a suction fan (T22) is arranged outside the air suction port (T2); the cut stem distribution plate (2) is arranged at the lower side of the cut stem guide plate (1), and its concave arc is The surface is opposite to the concave arc surface of the cut stem guide plate (1).
The device for removing light flakes from cut stems using a deflector according to claim 1, characterized in that, the vent holes (11, 21) of the cut stem deflector (1) and the cut stem distribution plate (2) The porosity on it is all 5.0-20.0%.
The device for removing light flakes from cut stems using a deflector according to claim 1, characterized in that the angle of the cut surface of the convex arc surface of the stem deflector (1) relative to the horizontal plane is adjustable.
The device for removing light flakes from cut stems using a baffle plate according to claim 1, characterized in that the blowing direction and blowing air volume of the positive pressure fan (T11) are adjustable.
The device for removing light flakes from cut stems using a baffle plate according to claim 1, characterized in that the angle of the cut surface of the convex arc surface of the cut stem distribution plate (2) relative to the horizontal plane is adjustable.
The device for removing light flakes from cut stems using a deflector according to claim 1, wherein the suction speed of the suction fan (T22) is adjustable.
The device for removing light flakes from cut stems by using a deflector according to claim 1, characterized in that, a material guide plate (3) is arranged at the bottom of the separation drum (T), and the bottom of the material guide plate (3) is Discharge port (T3); the discharge port (T3) is located at the lower part of the cut stem distribution plate (2).
The device for removing light flakes from cut stems using a deflector according to claim 1, characterized in that the separation drum (T) is cylindrical.
A method for removing light flakes from cut stems, characterized in that, using the device described in any one of claims 1-8, comprising the steps of: turning on a positive pressure fan (T11) and an exhaust fan (T22), adjusting the wind speed, from The cut stems coming in from the feed inlet (T1) slide down along the concave arc surface of the cut stem guide plate (1) under the action of gravity, and the positive pressure wind generated by the positive pressure fan (T11) at the lower part of the cut stem guide plate (1) passes through. Through the air holes (11), the cut stems enter into the concave arc surface of the cut stem guide plate (1) evenly to form a uniform wind pressure, so that the cut cut stems are in a "swelling" discrete shape and are guided to the cut cut stem distribution plate. In the concave arc surface of (2); due to the negative pressure of the exhaust fan (T22), the wind flows from the lower part of the cut stem distribution plate (2) through the uniform air holes (21) to the concave arc of the cut stem distribution plate (2) On the upper part of the concave curved surface of the cut stem distribution plate (2), monolayered and discretized cut stems are formed; at this time, the light flakes in the cut stems are sucked into the air intake (T2), and the remaining finished cut stems pass through gravity The action falls into the guide plate (3), and then unloads from the discharge port (T3);

Adjust the angle of the tangential surface of the convex arc surface of the deflector (1) relative to the horizontal plane, the blowing direction and air volume of the positive pressure fan (T11), and the angle of the tangential plane of the convex arc surface of the cut stem distribution plate (2) relative to the horizontal plane , and the exhaust air volume of the exhaust fan (T22), the finished cut stems in any proportion can be separated.