Falling type drying machine
By introducing a retarding structure and air outlet system into the drop dryer, the problem of insufficient material drying capacity in the prior art is solved, and a more effective material drying effect is achieved.
Patent Information
- Application Number
- CN202323260053.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-30
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-11-30
AI Technical Summary
The existing drop dryer has insufficient drying capacity for materials, resulting in the material falling time in the drying barrel being too short and cannot be fully dried.
The slow-speed structure is introduced in the drop dryer, including inclined surfaces and arc-shaped grooves, located outside the hot air duct and in the drying channel, to slow down the drop speed of the material, extend the drying time of the material in the drying barrel, and pass Multiple air outlet holes and air outlet nets improve drying effect.
By slowing down the drop speed of materials and extending the drying time, the drying capacity of the drop dryer to the materials is improved, ensuring that the materials are fully dried in the drying barrel.
Smart Images
Figure CN222165595U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of dryers, in particular to a drop-type dryer. Background Art
[0002] There is a kind of drop-type dryer, which includes a frame, a drying barrel and a hot air pipe. The drying barrel is arranged on the frame, and a drying channel is arranged vertically in the drying barrel. The hot air pipe is arranged in the drying channel, and an air outlet is provided on the wall of the hot air pipe. When the dryer is working, the hot air pipe blows hot air into the drying channel through the air outlet. At this time, the material to be dried can be put into the feed port at the top of the drying barrel. The material will be dried by the hot air blown out of the air outlet during the natural falling process due to gravity, and then the dried material will be discharged from the discharge port at the bottom of the drying barrel. However, the above-mentioned dryer still has insufficient drying capacity for materials. Utility Model Content
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a drop-down dryer that can improve the drying capacity of materials.
[0004] According to the embodiment of the utility model, the drop-down dryer comprises a frame, a drying barrel, a hot air pipe and a deceleration structure. The drying barrel is arranged on the frame, the drying barrel is provided with a drying channel in the vertical direction, the upper part of the drying barrel is provided with a feed port connected to the drying channel, and the lower part of the drying barrel is provided with a discharge port connected to the drying channel; the hot air pipe is arranged on the drying barrel and penetrates the drying channel, the hot air pipe is arranged in the vertical direction, the pipe wall of the hot air pipe is provided with air outlet holes, and the hot air pipe is arranged at intervals from the inner wall of the drying channel; the deceleration structure is arranged on the outer side of the hot air pipe and is located in the drying channel, the deceleration structure is located below the feed port and is used to slow down the falling speed of the material.
[0005] The drop-type dryer according to the embodiment of the utility model has at least the following beneficial effects: the material enters the drying barrel from the feed port, and the hot air pipe blows air to dry the material during the falling process under the action of gravity, and the material contacts the deceleration structure during the falling process, so that the falling speed of the material is slowed down, and the drying time of the material in the drying barrel is prolonged, thereby improving the drying capacity of the drop-type dryer for the material.
[0006] According to some embodiments of the utility model, the deceleration structure is provided with an inclined surface, and the inclined surface is arranged around the axis of the hot air pipe and on the outer periphery of the hot air pipe, and the inclined surface is inclined downward away from the side of the hot air pipe.
[0007] According to some embodiments of the utility model, at least two deceleration structures are provided, all of which are arranged vertically, and among two vertically adjacent deceleration structures, the vertical projection of the upper deceleration structure is within the range of the vertical projection of the lower deceleration structure.
[0008] According to some embodiments of the utility model, a plurality of air outlet holes are provided, and each of the hot air pipes is provided with an air outlet hole between two adjacent deceleration structures.
[0009] According to some embodiments of the utility model, at least part of the deceleration structure is provided with a plurality of arc grooves, the arc grooves are opened on the inclined surface, the arc grooves are circumferentially distributed around the axis of the hot air pipe, and both ends of the arc grooves pass through the deceleration structure.
[0010] According to some embodiments of the present invention, the lower portion of the drying channel is in a cone shape that is larger at the top and smaller at the bottom, and the discharge port is located at the lower end of the drying channel.
[0011] According to some embodiments of the utility model, an air outlet net is provided at the lower end of the hot air pipe, and the air outlet net is in a cone shape with a larger upper part and a smaller lower part.
[0012] According to some embodiments of the present invention, the inclination angle of the conical surface of the air outlet net is the same as the inclination angle of the conical surface of the lower inner wall of the drying channel.
[0013] According to some embodiments of the present utility model, the deceleration structure is provided with a sleeve portion, and the sleeve portion is sleeved on the outer side of the hot air pipe.
[0014] According to some embodiments of the utility model, a limiting plate is movably provided at the lower end of the drying barrel, and the limiting plate is used to shield the discharge port. The limiting plate can adjust its position relative to the drying barrel to adjust the area of the discharge port shielded.
[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] 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:
[0017] Figure 1 It is a three-dimensional schematic diagram of a drop-type dryer according to an embodiment of the utility model;
[0018] Figure 2 for Figure 1 A schematic cross-sectional view along the AA direction after the frame is removed;
[0019] Figure 3 It is a three-dimensional schematic diagram of the hot air pipe and the deceleration structure of an embodiment of the utility model.
[0020] Reference numerals:
[0021] Rack 100;
[0022] Drying barrel 200, drying channel 210, feed port 220, discharge port 230;
[0023] Hot air pipe 300, air outlet hole 310, air outlet net 320, and enlarged diameter portion 330;
[0024] The deceleration structure 400, the inclined surface 410, the arc groove 420, and the sleeve portion 430;
[0025] Restrictor plate 500. DETAILED DESCRIPTION
[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments 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.
[0027] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional 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.
[0028] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0030] There is a drop-type dryer, which includes a frame 100, a drying barrel 200 and a hot air pipe 300. The drying barrel 200 is arranged on the frame 100, and a drying channel 210 is vertically arranged in the drying barrel 200. The hot air pipe 300 is inserted into the drying channel 210, and an air outlet 310 is opened on the pipe wall of the hot air pipe 300. When the dryer is working, the hot air pipe 300 blows hot air into the drying channel 210 through the air outlet 310. At this time, the material to be dried can be put into the feed port 220 at the upper part of the drying barrel 200. The material will be dried by the hot air blown out of the air outlet 310 during the natural falling process of gravity, and then the dried material is discharged from the discharge port 230 at the lower part of the drying barrel 200. However, in the above-mentioned dryer, the time for the material to fall in the drying barrel 200 is relatively short, resulting in insufficient drying capacity for the material.
[0031] Reference Figures 1 to 3 , is a drop-type dryer of an embodiment of the utility model, comprising a frame 100, a drying barrel 200, a hot air pipe 300 and a deceleration structure 400. The drying barrel 200 is arranged on the frame 100, and a drying channel 210 is vertically arranged on the drying barrel 200. A feed port 220 communicating with the drying channel 210 is arranged at the upper part of the drying barrel 200, and a discharge port 230 communicating with the drying channel 210 is arranged at the lower part of the drying barrel 200; the hot air pipe 300 is arranged on the drying barrel 200 and penetrates the drying channel 210, the hot air pipe 300 is arranged vertically, and an air outlet hole 310 is opened on the pipe wall of the hot air pipe 300, and the hot air pipe 300 is arranged at intervals from the inner wall of the drying channel 210; the deceleration structure 400 is arranged on the outer side of the hot air pipe 300 and located in the drying channel 210, and the deceleration structure 400 is located below the feed port 220 and is used to slow down the falling speed of the material.
[0032] The material enters the drying barrel 200 from the feed port 220. As the material falls due to gravity, the hot air duct 300 blows air to dry the material. In addition, the material contacts the deceleration structure 400 during the falling process, which slows down the falling speed of the material and prolongs the drying time of the material in the drying barrel 200, thereby improving the drying capacity of the drop dryer for the material.
[0033] In the embodiment, the deceleration structure 400 is provided with an inclined surface 410, which is arranged on the outer periphery of the hot air pipe 300 around the axis of the hot air pipe 300, and the inclined surface 410 is inclined downward away from the hot air pipe 300. When the material falls, after a certain period of downward acceleration, the material will directly fall on the inclined surface 410, move downward along the inclined surface 410, and finally leave the inclined surface 410 and continue to fall downward; when the material contacts the inclined surface 410, the vertical speed of the material will be greatly reduced, thereby extending the free fall time of the material in the entire falling process in the drying barrel 200, and improving the drying effect.
[0034] Specifically, when the inclination angle of the inclined surface 410 is too small, the material is easily stagnant on the inclined surface 410 due to friction; when the inclination angle of the inclined surface 410 is too large, when the material contacts the inclined surface 410, the vertical speed is reduced to a small extent, making the effect of the deceleration structure 400 poor. Therefore, the inclination angle of the inclined surface 410 is preferably 20° to 30°, so that the material is not easily stagnant on the inclined surface 410 due to friction, and it also has a relatively good effect of slowing down the vertical speed of the material.
[0035] In the embodiment, three deceleration structures 400 are provided, and all deceleration structures 400 are arranged vertically. Among the two vertically adjacent deceleration structures 400, the vertical projection of the deceleration structure 400 located above is within the range of the vertical projection of the deceleration structure 400 located below. The above structure allows the material to contact the inclined surface 410 of the deceleration structure 400 one by one during the process of falling along the drying channel 210, and the vertical speed is slowed down three times, thereby further extending the falling time of the material and further improving the drying capacity of the dryer for the material. It is conceivable that the deceleration structure 400 can also be provided with two or more than three, and those skilled in the art can make specific configurations according to actual needs.
[0036] In the embodiment, a plurality of air outlet holes 310 are provided, and the hot air pipe 300 is provided with air outlet holes 310 between two adjacent deceleration structures 400, so that the drying effect of the material during the falling process is relatively good. Specifically, the number of air outlet holes 310 between two adjacent deceleration structures 400 can be one, two, or more than three. Preferably, the air outlet holes 310 can be evenly distributed around the axis of the hot air pipe 300, and the air outlet holes 310 are arranged in multiple rows along the vertical direction.
[0037] In the embodiment, part of the deceleration structure 400 is provided with six arc grooves 420, which are opened on the inclined surface 410, and are circumferentially distributed around the axis of the hot air pipe 300, and both ends of the arc grooves 420 pass through the deceleration structure 400. The arc grooves 420 can make the inclined surface 410 uneven, thereby improving the vertical deceleration of the material, and can also reduce the radial speed of the material relative to the hot air pipe 300, so that the material can fall into the deceleration structure 400 below more stably, and it is not easy to avoid the inclined surface 410 of the partial deceleration structure 400 due to excessive radial speed; smaller volume materials can also fall into the arc grooves 420, and move along the arc grooves 420, slowing down the speed in the radial direction, and finally leaving the deceleration structure 400 from the ends of the arc grooves 420. Specifically, among the three deceleration structures 400, the two deceleration structures 400 located at the bottom are provided with arc grooves 420. It is conceivable that the lowermost deceleration structure 400 may be provided with an arc groove 420, or the middle deceleration structure 400 may be provided with an arc groove 420; or all three deceleration structures 400 may be provided with an arc groove 420. Specifically, the number of arc grooves 420 provided on the inclined surface 410 of the deceleration structure 400 may be three, four or more, and those skilled in the art may configure the arc grooves 420 according to actual needs.
[0038] In the embodiment, the lower portion of the drying channel 210 is in a tapered shape with a larger upper portion and a smaller lower portion, and the discharge port 230 is located at the lower end of the drying channel 210. The lower portion of the discharge channel is in a tapered shape with a larger upper portion and a smaller lower portion, so that the materials can be discharged in a centralized manner after drying, and it is convenient to receive the materials from the discharge port 230. It is conceivable that in some embodiments, the lower portion of the drying channel 210 may also be in a cylindrical shape.
[0039] In the embodiment, an air outlet net 320 is provided at the lower end of the hot air pipe 300, and the air outlet net 320 is in a cone shape with a large top and a small bottom. The air outlet net 320 and the lower part of the drying channel 210 are both in a cone shape with a large top and a small bottom, so that when the material passes through the lower part of the drying channel 210, it can be evenly dried by the hot air blown out from the air outlet net 320, thereby improving the drying effect. Specifically, the air outlet net 320 has fine mesh holes, which facilitates the hot air to be blown out through the fine mesh holes.
[0040] Specifically, the lower end of the hot air pipe 300 is connected to the air outlet net 320 through the expansion part 330, and the expansion part 330 is a frustum-shaped plate. The expansion part 330 is provided to facilitate the upper diameter of the air outlet net 320 to be large enough, so that the air outlet net 320 is closer to the inner wall of the drying channel 210, thereby improving the effect of blowing out hot air to dry.
[0041] In an embodiment, the inclination angle of the conical surface of the air outlet net 320 is the same as the inclination angle of the conical surface of the lower inner wall of the drying channel 210, so that the material can be evenly dried by the hot air blown out from the air outlet net 320 when passing through the lower part of the drying channel 210, thereby improving the drying effect.
[0042] In the embodiment, the deceleration structure 400 is provided with a sleeve portion 430, and the sleeve portion 430 is sleeved on the outer side of the hot air pipe 300. The sleeve portion 430 is sleeved on the outer periphery of the hot air pipe 300, so that the deceleration structure 400 is installed on the hot air pipe 300, which has a simple structure and is easy to implement. Specifically, the sleeve portion 430 can be fixed to the hot air pipe 300 by gluing; or a pipe clamp is provided at the sleeve portion 430, and the hot air pipe 300 is clamped by the pipe clamp to fix the deceleration structure 400.
[0043] Specifically, the deceleration structure 400 further includes a conical cover, the inclined surface 410 is an upper wall of the conical cover, and the upper end of the conical cover is connected to the sleeve portion 430 .
[0044] It is conceivable that the deceleration structure 400 can also be a frustum block, a plug hole is opened in the middle of the frustum-shaped part, the hot air pipe 300 is passed through the plug hole, and the upper wall of the frustum block is an inclined surface 410.
[0045] In the embodiment, a limiting plate 500 is movably provided at the lower end of the drying barrel 200, and the limiting plate 500 is used to shield the discharge port 230. The limiting plate 500 can adjust its position relative to the drying barrel 200 to adjust the shielded area of the discharge port 230. The limiting plate 500 can be provided to adjust the shielded area of the discharge port 230, and can also fully open or fully close the discharge port 230, so that the dried material is discharged or stays in the drying barrel 200, and the flow rate of the material leaving can be adjusted, and the structure is simple and easy to implement.
[0046] Specifically, a slide groove is provided at the lower end of the drying barrel 200 in the horizontal direction, and a flow limiting plate 500 is inserted into the slide groove. The flow limiting plate 500 is provided with a clearance hole. When the flow limiting plate 500 slides to the clearance hole and communicates with the discharge port 230, the material can pass through the discharge port 230 and the clearance hole and leave the drying barrel 200; when the flow limiting plate 500 slides to the clearance hole and the discharge port 230 are not connected, the material can be stopped from being discharged from the drying barrel 200; by moving the flow limiting plate 500, when the clearance hole and the discharge port 230 are partially connected, the area of the discharge port 230 that is shielded can be adjusted to adjust the discharge flow rate of the material. The above-mentioned flow limiting plate 500 has a simple structure and is easy to implement.
[0047] It is conceivable that the limiting plate 500 may not be provided with a clearance hole, and the limiting plate 500 may directly block the discharge port 230 , and the limiting plate 500 may be moved to adjust the area of the blocked discharge port 230 .
[0048] It is conceivable that the flow limiting plate 500 can also be pivotally connected to the drying barrel 200, and the flow limiting plate 500 can adjust the area of the discharge port 230 blocked by horizontal rotation; or the flow limiting plate 500 is pivotally connected to the drying barrel 200 and adjusts the area of the discharge port 230 blocked by vertical flipping.
[0049] Specifically, the feed port 220 is located at the upper end of the drying barrel 200 , and the discharge port 230 is located at the lower end of the drying barrel 200 .
[0050] Specifically, the rack 100 is arranged around the outer circumference of the drying barrel 200, and a ladder extending vertically is also provided on the rack 100, so that production personnel can climb to the upper part of the drying barrel 200 for inspection and maintenance. The rack 100 is also provided with a fence at a position higher than the drying barrel 200 to reduce the risk of production personnel on the top of the drying barrel 200.
[0051] 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 utility model. 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 can be combined in any one or more embodiments or examples in a suitable manner.
[0052] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 drop-type dryer, characterized in that: include: Rack(100); A drying barrel (200) is arranged on the frame (100), the drying barrel (200) being provided with a drying passage (210) in a vertical direction, the upper portion of the drying barrel (200) being provided with a feeding port (220) communicating with the drying passage (210), and the lower portion of the drying barrel (200) being provided with a discharging port (230) communicating with the drying passage (210); A hot air pipe (300) is arranged on the drying barrel (200) and penetrates the drying channel (210); the hot air pipe (300) is arranged vertically; a pipe wall of the hot air pipe (300) is provided with an air outlet hole (310); the hot air pipe (300) is spaced apart from an inner wall of the drying channel (210); A deceleration structure (400) is arranged outside the hot air pipe (300) and located in the drying channel (210); the deceleration structure (400) is located below the feed port (220) and is used to slow down the falling speed of the material.
2. The drop-type dryer according to claim 1, characterized in that: The deceleration structure (400) is provided with an inclined surface (410), and the inclined surface (410) is arranged around the axis of the hot air pipe (300) and on the outer periphery of the hot air pipe (300), and the side of the inclined surface (410) away from the hot air pipe (300) is inclined downward.
3. The drop-type dryer according to claim 2, characterized in that: At least two of the deceleration structures (400) are provided, and all of the deceleration structures (400) are arranged vertically. Among the two vertically adjacent deceleration structures (400), the vertical projection of the deceleration structure (400) located above is within the range of the vertical projection of the deceleration structure (400) located below.
4. The drop-type dryer according to claim 3, characterized in that: A plurality of the air outlet holes (310) are provided, and the hot air pipe (300) is provided with an air outlet hole (310) between two adjacent deceleration structures (400).
5. The drop-type dryer according to claim 2, characterized in that: At least part of the deceleration structure (400) is provided with a plurality of arc-shaped grooves (420), the arc-shaped grooves (420) are opened on the inclined surface (410), the arc-shaped grooves (420) are circumferentially distributed around the axis of the hot air pipe (300), and both ends of the arc-shaped grooves (420) pass through the deceleration structure (400).
6. The drop-type dryer according to claim 1, characterized in that: The lower portion of the drying channel (210) is in a cone shape that is larger at the top and smaller at the bottom, and the discharge port (230) is located at the lower end of the drying channel (210).
7. The drop-type dryer according to claim 6, characterized in that: An air outlet net (320) is provided at the lower end of the hot air pipe (300), and the air outlet net (320) is in a cone shape that is larger at the top and smaller at the bottom.
8. The drop-type dryer according to claim 7, characterized in that: The inclination angle of the conical surface of the air outlet net (320) is the same as the inclination angle of the conical surface of the lower inner wall of the drying channel (210).
9. The drop-type dryer according to claim 1, characterized in that: The deceleration structure (400) is provided with a sleeve portion (430), and the sleeve portion (430) is sleeved on the outside of the hot air pipe (300).
10. The drop-type dryer according to claim 1, characterized in that: A limiting plate (500) is movably provided at the lower end of the drying barrel (200), and the limiting plate (500) is used to shield the discharge port (230). The limiting plate (500) can adjust its position relative to the drying barrel (200) to adjust the area of the discharge port (230) that is shielded.