Baked cut stem winnowing, throwing and guiding device

Abstract

The utility model discloses a dried cut stem winnowing, throwing and guiding device which comprises a vibration groove and a winnowing machine located behind the vibration groove, the tail end of the vibration groove is connected with a throwing and guiding piece located in the winnowing machine, the throwing and guiding piece is provided with an upward arc face, and guiding wall faces are symmetrically arranged on the front side and the rear side of the arc face. The side wall face of the winnowing machine is provided with an observation window I and an observation window II located below the observation window I. The side wall face of the winnowing machine is further provided with a feeding port for containing a material throwing device. According to the material throwing and flow guiding piece, the dried cut stems can be further loosened at the position through the upward arc face of the material throwing and flow guiding piece, and the dried cut stems located on the surface of the material throwing and flow guiding piece can be smoothly thrown into the winnowing machine along the trend of the upward arc face of the material throwing and flow guiding piece under the continuous vibration effect of the vibration groove; and the thrown and dried cut stems are more uniformly distributed in the winnowing machine, so that the contact effect of the dried cut stems and negative pressure air is improved, and the aim of separating stem slivers from the cut stems can be fulfilled at a relatively low air speed.

Description

TECHNICAL FIELD

[0001] The utility model relates to tobacco primary processing equipment technical field especially relates to a kind of after drying stem wind selection throwing material flow guide device. BACKGROUND

[0002] In the production process of cut stem, part of the moisture in cut stem is removed by drying stem machine to improve the filling capacity of cut stem in cigarette, and the obtained after drying stem often contains impurities such as stem, which needs to be selected by air separator. In the process of air selection of after drying stem, reasonable wind speed setting is also the guarantee of the air selection effect of air separator, so under a certain air speed of air separator, the stem with heavy weight will fall into the bottom collection area of air separator, and the qualified cut stem with light weight will be sucked into the top conveying pipe of air separator and transported to the next production process.

[0003] At present, the after drying stem is transported into the air separator by vibrating trough, and the cut stem and stem are separated by intermittent throwing of vibrating trough. However, there is a major problem in the actual operation of vibrating trough: the throwing effect of vibrating trough is poor, which leads to local aggregation of the after drying stem thrown, that is, the qualified cut stem will wrap up impurities such as stem, so that the after drying stem is unevenly distributed in the air separator. In this case, it is difficult to set the wind speed of air separator, if the wind speed is set too low, the separation effect is not ideal, which leads to a high proportion of qualified cut stem in stem, if the wind speed is set too high, not only the breakage rate in the air selection process will increase significantly, but also part of the light stem will flow with the qualified cut stem to the upper conveying pipe, which will affect the product quality of the next process. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model provides an after drying stem wind selection throwing material flow guide device, which can solve the technical problem that the throwing effect of vibrating trough is poor, which leads to local aggregation of the after drying stem thrown, and the after drying stem is unevenly distributed in the air separator.

[0005] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0006] An after drying stem wind selection throwing material flow guide device comprises a vibrating trough and an air separator located behind the vibrating trough, the end of the vibrating trough is connected with a throwing material flow guide piece located in the air separator, the throwing material flow guide piece is provided with an upward arc surface, the front and rear sides of the arc surface are symmetrically provided with flow guide wall surfaces, the side wall surface of the air separator is provided with an observation window I and an observation window II located below the observation window I, the side wall surface of the air separator is also provided with a feeding port for placing a throwing device, the air separator is connected with a wind conveying pipe through a wind sending end located at the top of the air separator, and the air separator is connected with a collection bin through a discharging end located at the bottom of the air separator.

[0007] As the improvement of the above technical scheme, the throwing material guide member is provided with a head end and a tail end, and the head end of the throwing material guide member is welded with the tail end of the vibrating groove.

[0008] As the improvement of the above technical scheme, the throwing material guide member is made of 304 stainless steel, and the thickness is 1.5 mm.

[0009] As the improvement of the above technical scheme, the observation window I is located on the upper sidewall of the winnower, the observation window II is located on the lower sidewall of the winnower, the feeding port is located on the sidewall of the winnower adjacent to the positions of the observation window I and the observation window II, and the tail end of the vibrating groove extends to the inside of the winnower through the feeding port.

[0010] Compared with the prior art, the technical scheme has the following beneficial effects:

[0011] The utility model discloses a compact structure, practicality is strong, manufacturing cost is low and the like characteristics, the installation position and mode of throwing material guide member and vibrating groove in the utility model will not cause the interference of normal operation of remaining equipment, throwing material guide member in the utility model can not only utilize the arc surface of its upward to further loosen the post-cured stem here, can also along the trend of the arc surface of its upward smoothly throw the post-cured stem on its surface into the inside of winnower under the continuous vibration effect of vibrating groove, make the post-cured stem that is thrown up through it distribute more evenly in winnower, thereby improve the contact effect of post-cured stem and negative pressure wind, can realize the purpose of separating stem and stem silk in it through smaller wind speed, guarantee the rejection effect of stem, reduce the broken rate of stem silk when conveying in air conveying pipeline at the same time,

[0012] Other beneficial effects in the utility model will be further explained in the following specific embodiment. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be further explained in the following with the specific embodiment,

[0014] Figure 1 It is assembly structure schematic diagram of the utility model;

[0015] Figure 2 It is side view structure schematic diagram of throwing material guide member in the utility model;

[0016] Figure 3 It is plan view structure schematic diagram of throwing material guide member in the utility model;

[0017] Figure 4 It is winnower wind speed (winnowing frequency) and broken silk rate regression analysis fitting line diagram;

[0018] Figure 5 It is winnower wind speed (winnowing frequency) and falling material quantity regression analysis fitting line diagram;

[0019] Among them: 1. Vibrating trough; 2. Material throwing guide; 201. Arc surface; 202. Guide wall; 3. Air separator; 301. Observation window I; 302. Observation window II; 303. Feed inlet; 304. Air conveying pipe; 305. Collection bin. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be understood that the terms "above", "below", "front", "back", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "setting," "installing," "connecting," "linking," "fixing," and "communicating" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; they can refer to mechanical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] like Figures 1 to 3 As shown, this utility model provides a post-drying stem and filament air-classification and throwing device.

[0024] It includes a vibrating trough and an air classifier located behind it. The end of the vibrating trough is connected to a material throwing guide located inside the air classifier. The material throwing guide has an upward arc surface, and guide walls are symmetrically arranged on the front and rear sides of the arc surface. The side wall of the air classifier is provided with an observation window I and an observation window II located below the observation window I. The side wall of the air classifier is also provided with a feed inlet for accommodating the material throwing device. The air classifier is connected to an air conveying pipe through the air conveying end located at its top, and a collection bin is connected to the air classifier through the material dropping end located at its bottom.

[0025] The embodiment of the utility model discloses the vibration groove can be through the sustained vibration effect of the vibration component that it adapts to produce, make the drying stalk silk that is located the surface of vibration groove along the oblique direction of vibration groove to the feed inlet of winnower moves.

[0026] The embodiment of the utility model discloses the throw material guide piece not only can utilize its upward arc surface to further loosen drying stalk silk at this place, still can with the drying stalk silk that is located its surface under the sustained vibration effect of vibration groove along its upward arc surface trend smoothly throw into the inside of winnower, make the drying stalk silk that is thrown through it in winnower distribution is more even;

[0027] The throw material guide piece is provided with a head end and a tail end, the head end of the throw material guide piece is welded with the tail end of the vibration groove, the throw material guide piece is made of 304 stainless steel, and the thickness is 1.5mm,

[0028] Specifically, the throw material guide piece is provided with the following one of the sizes:

[0029] The horizontal length of the arc surface of the throw material guide piece from the leftmost end to the rightmost end is 200mm, the width of the arc surface is 790mm, the vertical height from the uppermost end to the lowermost end of the arc surface is 120mm, and the radius of the reference circle involved by the upward arc line of the arc surface is 220mm.

[0030] The embodiment of the utility model discloses the winnower has the drying stalk silk that is thrown by throw material guide piece and is winnowed to reach the purpose of separating the stalk silk and the stem in it, the observation window I is located in the upper lateral surface of winnower, and it can observe the working condition of the upper space area in winnower, and the observation window II is located in the lower lateral surface of winnower, and it can observe the working condition of the lower space area in winnower, the feed inlet is located in the lateral surface of winnower adjacent to the position of observation window I and observation window II, and the tail end of the vibration groove extends to the inside of winnower through the feed inlet, so that the overall structure of the throw material guide piece connected with the tail end of the vibration groove is located in the inside of winnower.

[0031] The embodiment of the utility model discloses the winnower adopts the negative pressure wind provided through the air conveying pipeline to separate the stalk silk and the stem in drying stalk silk, when drying stalk silk is thrown into the inside of winnower by throw material guide piece, under the action of negative pressure wind, the stalk silk with relatively light weight is conveyed to the stalk silk storage area through the air conveying end and the air conveying pipeline in sequence through the upper part of winnower, and the relatively heavy stem falls into the collection bin through the dropping end from the lower part of winnower.

[0032] In combination with the above content, the working principle of the utility model is:

[0033] The continuous vibration effect of the vibration groove through the vibration component matched with the vibration groove transports the dried stem filaments on the surface of the vibration groove along the inclined direction of the vibration groove to the surface of the throwing guide piece through the feeding port of the winnower, the dried stem filaments with partial gathering phenomenon transported by the vibration groove are further shaken and loosened at the arc surface of the throwing guide piece, and the dried stem filaments after further shaking and loosening are smoothly thrown into the interior of the winnower along the trend of the arc surface of the throwing guide piece.

[0034] The utility model is applied to actual production activities:

[0035] After the throwing guide piece is installed, through on-site tracking experiments and regression analysis, as shown in Figure 4 and Figure 5 When the wind speed is gradually reduced from the original 19.5 m / s (winnowing frequency 43HZ) to 14.9 m / s (i.e. winnowing frequency 37HZ), the broken filament rate of the stem filament storage area gradually decreases, and the stem drop amount in the collection bin gradually increases, wherein when the wind speed is 14.9 m / s, the stem drop amount increases because the removed stem contains a higher proportion of stem filaments, and the winnowing effect is not optimal, therefore, in order to ensure that the winnower can separate stem filaments and stems in the dried stem filaments at a lower wind speed, both a higher stem drop amount and a lower broken filament rate are required, therefore, when the wind speed is 15.4 m / s (winnowing frequency 38HZ), the winnowing effect is optimal, and the broken filament rate of the stem filaments during transportation in the air conveying pipe is low.

[0036] The winnowing frequency of the winnower is set to 38HZ, and 10 batches of stem filaments are produced, and the stem drop amount and the stem filament broken filament rate when the throwing guide piece is not installed are compared. The application of the utility model can ensure the removal effect of the stem at a lower winnowing wind speed, and the stem filament broken filament rate is reduced from 2.02% to 1.85% (Table 1), which is significantly improved.

[0037] Table 1 Comparison table of air separation effect of air separators

[0038]

[0039] Finally, it should be noted that the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A post-cured stem strand air-throwing and material-throwing guide device, characterized in that: The utility model relates to a kind of wind selection machines, including vibration groove and located behind it, the end of the vibration groove is connected with the material throwing guide element inside wind selection machine, the material throwing guide element is provided with upward arc surface, and the arc surface is symmetrically provided with guide wall surface in front and back two sides, the side wall surface of wind selection machine is provided with observation window I and observation window II located below observation window I, and the side wall surface of wind selection machine is also provided with the feed inlet of the material throwing device, and wind selection machine is connected with air conveying pipeline by air conveying end located in its top, and wind selection machine is connected with collection bin by drop end located in its bottom.

2. The kind of a post-curing stem wind election throwing material flow guide device according to claim 1, its characterized in that: The material throwing guide element is provided with a head end and a tail end, and the head end of the material throwing guide element is welded with the end of the vibration groove.

3. The kind of a post-curing stem wind election throwing material flow guide device according to claim 1, its characterized in that: The material throwing guide element is made of 304 stainless steel, and the thickness is 1.5 mm.

4. The kind of a post-curing stem wind election throwing material flow guide device according to claim 1, its characterized in that: The observation window I is located in the upper side wall surface of the wind selection machine, the observation window II is located in the lower side wall surface of the wind selection machine, the feed inlet is located in the side wall surface of the wind selection machine adjacent to the positions of the observation window I and the observation window II, and the end of the vibration groove extends to the inside of the wind selection machine through the feed inlet.

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