Cut tobacco dryer with straight guide plate structure

Abstract

The invention relates to a cut-tobacco drier with a straight guide plate structure. The cut-tobacco drier comprises a cut-tobacco drier box body, an air inlet channel, a feeding channel and the guide plate structure, a material circulation channel is arranged in the cut tobacco dryer box body, and a feeding port and a discharging port which are communicated with the material circulation channel are formed in the cut tobacco dryer box body. The discharging port is higher than the feeding port, and the discharging port and the feeding port are located on the two opposite sides of the cut tobacco dryer box body. The air inlet channel and the feeding channel are respectively communicated with the feeding port, and the discharging side of the feeding channel is higher than the discharging side of the air inlet channel; the flow guide plate structure is arranged in the material circulation channel and used for drying wet materials entering from the feeding channel after hot air entering from the air inlet channel is turned, and the flow guide plate structure comprises a plurality of flow guide plates; the flow guide plates are arranged facing the communicating side of the feeding channel and the feeding port and are arranged at intervals in the extending direction of the air inlet channel, the distance between the flow guide plates and the bottom face of the material circulation channel in the extending direction of the air inlet channel is gradually reduced, and the flow guide plates form a plurality of flow dividing channels.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco equipment, and in particular to a tobacco drying machine with a straight guide plate structure. Background Art

[0002] Tobacco airflow drying process is a key heat treatment link in the tobacco silk making process. Studies have shown that airflow drying, as an important step in the silk making process, has a significant impact on the physical and chemical properties and sensory quality of tobacco products. Its processing intensity is closely related to the degree of change in tobacco quality characteristics, which has important technical significance.

[0003] In the prior art, the airflow drying method is widely used in tobacco drying. This method uses hot air to disperse and suspend the wet material in the airflow, and the material is transported with the airflow and dried at the same time. In order to ensure the drying effect, the flow rate of the drying medium must exceed the settling rate of the largest particle in the wet material, so that an airflow conveying bed structure with gas-solid two-phase heat and mass transfer is formed in the dryer, and finally a dispersed granular dry product is obtained.

[0004] In the application of existing airflow drying technology, there are still many problems that need to be solved. For example, the unevenness of airflow drying effect will directly affect the consistency of cigarette flavor; materials are easy to accumulate during processing, which will lead to blockage of the air inlet and increase energy consumption; in addition, the uneven distribution of hot air in the drying chamber also has an adverse effect on the overall process efficiency. Therefore, the existing technology has obvious limitations and needs further optimization and improvement. Summary of the invention

[0005] The invention discloses a tofu drying machine with a straight guide plate structure, aiming to solve the technical problems existing in the prior art.

[0006] The present invention adopts the following technical solutions:

[0007] The present invention provides a wire drying machine with a straight guide plate structure, which comprises a wire drying machine housing, an air inlet channel, a feed channel and a guide plate structure; the wire drying machine housing has a material flow channel inside, and is provided with a feed port and a discharge port connected to the material flow channel; the discharge port is higher than the feed port, and the discharge port and the feed port are located on opposite sides of the wire drying machine housing; the air inlet channel and the feed channel are respectively connected to the feed port, and the discharge side of the feed channel is higher than the discharge side of the air inlet channel; the guide plate structure is arranged in the material flow channel, and is used for drying the wet material entering from the feed channel after redirecting the hot air entering from the air inlet channel, and the guide plate structure comprises a plurality of guide plates; each of the guide plates is arranged facing the connecting side of the air inlet channel and the feed port, and is arranged at intervals along the extending direction of the air inlet channel, and the distance between the guide plate and the bottom surface of the material flow channel gradually decreases along the extending direction of the air inlet channel, and a plurality of the guide plates form a plurality of diversion channels.

[0008] In a wire drying machine with a straight guide plate structure of the present invention, each of the guide plates is arranged to be inclined toward the discharge port side.

[0009] In a wire drying machine with a straight guide plate structure of the present invention, the material flow channel includes a feed chamber, a drying chamber and a discharge chamber from bottom to top; the feed chamber is provided with the feed port, and the guide plate structure is provided in the feed chamber; the discharge chamber is provided with the discharge port; the bottom horizontal cross-sectional area of ​​the drying chamber is smaller than the top horizontal cross-sectional area.

[0010] In a wire drying machine with a straight guide plate structure of the present invention, the side surface of the discharge chamber on which the discharge port is arranged is an inclined surface, and is inclined toward the discharge port to form a material unloading surface, and a wet material outlet is arranged on the bottom surface of the material flow channel corresponding to the inclined surface.

[0011] In a tow dryer with a straight guide plate structure of the present invention, the top edge of each guide plate is lower than the bottom edge of the feed channel.

[0012] In a wire drying machine with a straight guide plate structure of the present invention, it also includes a material distribution roller; the material distribution roller is arranged in the material flow channel, located above the guide plate structure, and is used to break up the wet material entering from the feed channel.

[0013] In a wire drying machine with a straight guide plate structure of the present invention, the material distribution roller is rotatably arranged in the material flow channel, and the cross section perpendicular to the axial direction is a triangle.

[0014] In a tow dryer with a straight guide plate structure of the present invention, the extension direction of the air inlet channel is arranged at an obtuse angle to the guide plate.

[0015] In a tow dryer with a straight guide plate structure of the present invention, the air inlet channel and the feed channel extend in the same direction.

[0016] In a tomato drying machine with a straight guide plate structure of the present invention, at a point perpendicular to the cross section of the guide plate, a straight line drawn from the bottom end point of each guide plate and parallel to the extending direction of the air inlet channel, and the feed side edge of the air inlet channel, the distances between two adjacent intersections are equal; and / or,

[0017] Among the intersection points of the extension line of each guide plate cross section and the horizontal cross section of the material flow channel, the distance between two adjacent intersection points is equal.

[0018] The technical solution adopted by the present invention can achieve the following beneficial effects:

[0019] The present invention mainly provides a wire drying machine with a straight guide plate structure, which is based on forming multiple diversion channels with multiple guide plates, and then dividing the hot air input from the air inlet channel into multiple strands to dry the wet materials input from the feed channel respectively, which can improve the uniformity of drying the wet materials; the bottoms of the straight guide plates are staggered to form the diversion channel entrance, which has a simple structure and is easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments, which constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions explain the present invention and do not constitute improper limitations on the present invention. In the drawings:

[0021] Figure 1 It is a schematic diagram of the main structure of a tofu drying machine with a straight guide plate structure according to the present invention;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of a tofu drying machine with a straight guide plate structure according to the present invention;

[0023] Figure 3 This is one of the structural schematic diagrams of the guide plate of the present invention;

[0024] Figure 4 This is the second structural schematic diagram of the guide plate of the present invention.

[0025] Description of reference numerals:

[0026] 1. Drying machine body; 11. Material circulation channel; 111. Feeding chamber; 112. Drying chamber; 113. Discharging chamber; 12. Feeding port; 13. Discharging port; 14. Wet material outlet; 2. Air inlet channel; 3. Feeding channel; 4. Guide plate structure; 41. Guide plate; 42. Diversion channel; 43. Elastic member; 5. Material distribution roller. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. In the description of the present invention, it should be noted that the term "or" is usually used in the sense of including "and / or", unless the content clearly indicates otherwise.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a magnetic connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically limited.

[0029] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In order to solve the problems existing in the prior art, an embodiment of the present application provides a tofu drying machine with a straight guide plate structure.

[0031] like Figure 1As shown, a wire drying machine with a straight guide plate structure comprises a wire drying machine housing 1, an air inlet channel 2, a feed channel 3 and a guide plate structure 4; the wire drying machine housing 1 has a material flow channel 11 inside, and is provided with a feed port 12 and a discharge port 13 connected to the material flow channel 11; the discharge port 13 is higher than the feed port 12, and the discharge port 13 and the feed port 12 are located on opposite sides of the wire drying machine housing 1, specifically, on both sides in the horizontal direction; the air inlet channel 2 and the feed channel 3 are connected to the feed port 12 respectively, and the discharge side of the feed channel 3 is higher than the discharge side of the air inlet channel 2; The flow plate structure 4 is arranged in the material flow channel 11, and is used to dry the wet material entering from the feed channel 3 after redirecting the hot air entering from the air inlet channel 2. The guide plate structure 4 includes multiple guide plates 41; each guide plate 41 is arranged facing the connecting side of the air inlet channel 2 and the feed port 12, and is arranged at intervals along the extension direction of the air inlet channel 2. The distance between the guide plate 41 and the bottom surface of the material flow channel 11 gradually decreases along the extension direction of the air inlet channel 2, and multiple guide plates 41 form multiple diversion channels 42; for example, both sides of each guide plate 41 are connected to the inner wall of the material flow channel 11.

[0032] The present invention mainly provides a wire drying machine with a straight guide plate structure, based on forming multiple diversion channels 42 with multiple guide plates 41, and then dividing the hot air input from the air inlet channel 2 into multiple strands, so as to dry the wet material input from the feed channel 3 respectively, thereby improving the uniformity of drying the wet material; the bottoms of the straight guide plates 41 are staggered to form the entrance of the diversion channel 42, which has a simple structure and is easy to install.

[0033] In some preferred embodiments, Figure 4 As shown, the bottom of each guide plate 41 is rotatably connected to the inner wall of the material flow channel 11, and the top is connected to the inner wall of the material flow channel 11 through an elastic member 43, so that when the air intake speed changes, the guide plate 41 can be blown to rotate and the elastic member 43 can be compressed to increase the area of ​​the outlet side of the diversion channel 42, reduce the outlet flow rate, increase the residence time of the wet material and thus improve the drying effect; when the input hot air flow rate is low, the guide plate 41 is reset under the action of the elastic member 43; specifically, the elastic member 43 can be a spring or other structure that can achieve elastic expansion and contraction.

[0034] In some preferred embodiments, Figure 1 As shown, each guide plate 41 is inclined toward the discharge port 13; based on this, the hot air at the outlet of the diversion channel 42 has not only an upward component velocity but also a horizontal component velocity. On the one hand, the residence time is increased, and on the other hand, it is convenient for the dried material to be discharged from the discharge port 13.

[0035] In some preferred embodiments, Figure 1 and Figure 2As shown, the material flow channel 11 includes a feed chamber 111, a drying chamber 112 and a discharge chamber 113 from bottom to top; the feed chamber 111 is provided with a feed port 12, and a guide plate structure 4 is provided in the feed chamber 111, the guide plate structure 4 is used to adjust the flow direction of the hot air entering from the air inlet channel 2 and then send it into the drying chamber 112, that is, one side of the diversion channel 42 is connected to the feed port 12, and the other side is connected to the drying chamber 112; the discharge chamber 113 is provided with a discharge port 13; the bottom horizontal cross-sectional area of ​​the drying chamber 112 is smaller than the top horizontal cross-sectional area; based on the horizontal cross-section of the drying chamber 112 being a structure with a small bottom and a large top, the residence time of the material can be increased, the material can be fully dried, and the drying effect can be improved; preferably, the drying chamber 112 is an inverted quadrangular pyramid structure; further preferably, a pair of the two opposite side surfaces of the quadrangular pyramid structure are parallel to each other, such as the two side surfaces adjacent to the surface where the discharge port 13 is located are inclined surfaces.

[0036] In some preferred embodiments, Figure 1 and Figure 2 As shown, the side surface of the discharge port 13 of the discharge chamber 113 is an inclined surface, and is inclined toward the discharge port 13 to form a material unloading surface, and a wet material outlet 14 is provided on the bottom surface of the material flow channel 11 corresponding to the inclined surface, that is, the wet material sliding down the inclined surface falls to the wet material outlet 14, such as the wet material outlet 14 is set on the bottom surface of the feed chamber 111; based on the side surface of the discharge chamber 113 of the discharge port 13 being set as an inclined surface, the distance that the material moves in the horizontal direction is increased, and it is easier to separate the insufficiently dried material therein.

[0037] Preferably, there is a gap between the bottom edge of each guide plate 41 and the bottom surface of the material flow channel 11; thereby, the wet material falling to the bottom surface of the material flow channel 11 can be blown to the wet material outlet 14 and then discharged to avoid accumulation; at this time, the wet material outlet 14 is arranged on the side of the bottom surface of the material flow channel 11 away from the feed port 12.

[0038] In some preferred embodiments, the top edge of each guide plate 41 is lower than the bottom edge of the feed channel 3; thereby, the guide plate 41 is prevented from affecting the entry of materials.

[0039] In some preferred embodiments, Figure 1 and 2 As shown, it also includes a material distribution roller 5 ; the material distribution roller 5 is arranged in the material flow channel 11 and is located above the guide plate structure 4 , and is used to break up the wet material entering from the feed channel 3 .

[0040] Preferably, the material leveling roller 5 is disposed adjacent to the feed port 12 and is located in the extending direction of the feed channel 3, that is, the input wet material is dispersed and then blown dry by hot air.

[0041] Preferably, the material leveling roller 5 is rotatably arranged in the material flow channel 11, and the axis of the material leveling roller is parallel to the material. The center line of the horizontal cross-section of the material falling due to gravity almost coincides with the axis of the material leveling roller, ensuring that all the material falls onto the rotating material leveling roller; based on this, on the one hand, the collision between the wet material and the roller surface (forming one surface of the roller surface) is achieved to achieve dispersion, and on the other hand, when the material collides with the angle between the two roller surfaces, the material can be diverted, and then collides with the roller surface, which can improve the dispersion effect. Further preferably, the rotation axis of the material leveling roller 5 is set horizontally and perpendicular to the extension direction of the feed channel 3, and the rotation direction is the same as the flow direction of the wet material. For example, the feed port 12 is set on the right side, and the rotation direction of the material leveling roller 5 is counterclockwise. The loose and agglomerated materials are further broken up by the rotation of the material leveling roller 5. The material leveling roller 5 causes the material to produce parabolic motion, and the direction in which the material is discarded is consistent with the flow direction of the hot air, so that the material is dried more evenly. The rotation direction of the material leveling roller 5 helps the material to move toward the discharge port 13, eliminating the risk of blockage. Further preferably, the cross-section of the material leveling roller 5 is an equilateral triangle to improve the uniformity of the dispersion of the wet material.

[0042] In some preferred embodiments, Figure 1 and Figure 3 As shown, the extension direction of the air inlet channel 2 is set at an obtuse angle with the guide plate 41, that is, Figure 2 and Figure 4 Angle A in the middle; thereby, the pressure drop when the hot air changes its flow direction through the guide plate 41 is reduced. Further preferably, the air inlet channel 2 is inclined toward the discharge port 13, that is, the incoming hot air has not only a horizontal component velocity, but also a vertical component velocity, thereby further reducing the pressure drop when the hot air changes its flow direction through the guide plate 41.

[0043] In some preferred embodiments, the air inlet channel 2 and the feed channel 3 extend in the same direction; for example, the air inlet channel 2 and the feed channel 3 are divided by a partition plate arranged in the same feed pipe.

[0044] In some preferred embodiments, Figure 3 As shown, on the cross section perpendicular to the guide plate 41, the distance between two adjacent intersections of the intersection of the bottom end point of each guide plate 41 and the feed side edge of the air inlet channel 2 (or the height direction of the air inlet channel 2) is equal; and / or, the distance between two adjacent intersections of the intersection of the extension line of the cross section of each guide plate 41 and the horizontal cross section of the material flow channel 11 is equal; that is, the air inlet size of the formed diverter channel 42 is the same, or the air outlet size of the formed diverter channel 42 is the same; thereby, the input hot air is evenly dispersed to improve the uniformity of drying.

[0045] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A tow wire drying machine with a straight guide plate structure, characterized in that: It includes a tofu drying machine box, an air inlet channel, a material feeding channel and a guide plate structure; The tofu drying machine box has a material flow channel inside, and is provided with a feed inlet and a discharge port connected to the material flow channel; The discharge port is higher than the feed port, and the discharge port and the feed port are located on opposite sides of the casing of the tofu drying machine; The air inlet channel and the feed channel are respectively connected to the feed port, and the discharge side of the feed channel is higher than the discharge side of the air inlet channel; The guide plate structure is arranged in the material flow channel, and is used for drying the wet material entering from the feed channel after redirecting the hot air entering from the air inlet channel. The guide plate structure includes a plurality of guide plates; each of the guide plates is arranged facing the connecting side of the air inlet channel and the feed port, and is arranged at intervals along the extension direction of the air inlet channel. The distance between the guide plates and the bottom surface of the material flow channel gradually decreases along the extension direction of the air inlet channel, and the plurality of guide plates form a plurality of diversion channels.

2. A tow dryer with a straight guide plate structure according to claim 1, characterized in that: Each of the guide plates is arranged to be inclined toward the discharge port.

3. The tomato drying machine with a straight guide plate structure according to claim 1, characterized in that: The material flow channel includes a feeding chamber, a drying chamber and a discharging chamber from bottom to top; The feed chamber is provided with the feed port, and the guide plate structure is provided in the feed chamber; The discharge chamber is provided with the discharge port; The bottom horizontal cross-sectional area of ​​the drying chamber is smaller than the top horizontal cross-sectional area.

4. A tow dryer with a straight guide plate structure according to claim 3, characterized in that: The side surface of the discharge chamber where the discharge port is arranged is an inclined surface, and is inclined toward the discharge port to form a material discharge surface, and a wet material outlet is arranged on the bottom surface of the material flow channel corresponding to the inclined surface.

5. The tomato drying machine with a straight guide plate structure according to claim 1, characterized in that: The top edge of each guide plate is lower than the bottom edge of the feed channel.

6. The tomato drying machine with a straight guide plate structure according to claim 1, characterized in that: Also includes a material leveling roller; The material distribution roller is arranged in the material flow channel, located above the guide plate structure, and is used to disperse the wet material entering from the feed channel.

7. The tomato drying machine with a straight guide plate structure according to claim 1, characterized in that: The material distribution roller is rotatably arranged in the material flow channel, and the cross section perpendicular to the axial direction is a triangle.

8. The tomato drying machine with a straight guide plate structure according to claim 1, characterized in that: The extension direction of the air inlet channel is arranged at an obtuse angle with the guide plate.

9. The tomato drying machine with a straight guide plate structure according to claim 1, characterized in that: The air inlet channel and the feed channel extend in the same direction.

10. The tomato drying machine with a straight guide plate structure according to claim 1, characterized in that: On a cross section perpendicular to the guide plate, a straight line drawn from the bottom end point of each guide plate and parallel to the extending direction of the air inlet channel, and the feed side edge of the air inlet channel, the distances between two adjacent intersections are equal; and / or, Among the intersection points of the extension line of each guide plate cross section and the horizontal cross section of the material flow channel, the distance between two adjacent intersection points is equal.

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