Flash dryer

Abstract

The utility model relates to the technical field of flash drying machines, in particular to a flash drying machine which comprises a bottom plate, a drying tank and a heating device, a plurality of supporting legs are fixed at the bottom end of the drying tank and fixed at the top end of the bottom plate, and the heating device is fixed at the top end of the bottom plate and can heat air for conveying. The flash drying machine comprises a drying tank, a heating device is arranged in the drying tank, an air inlet and an air outlet are formed in the heating device, the air outlet is communicated with the drying tank, a blocking mechanism used for blocking air is arranged on the drying tank, and the blocking mechanism comprises a motor bin and a first motor. The two wind shields rotate in opposite directions, so that wind can intermittently pass through under the blocking of the wind shields, the retention time of materials in the drying tank is prolonged, the materials can be dried more sufficiently, and meanwhile, large materials can continuously rise and fall onto the crushing rods, so that the large materials can be crushed more sufficiently.

Description

Technical Field

[0001] The utility model relates to the technical field of flash drier, in particular to a flash drier. Background Art

[0002] In the field of flash drying, a flash dryer is a machine in which materials enter the dryer through a screw feeder. Under the strong action of the rotating stirring blade, the materials are subjected to strong shearing, blowing, floating and rotating effects. The materials are then subjected to centrifugal, shearing, collision and friction and are micronized, which strengthens the mass transfer and heat transfer. At the bottom of the dryer, the materials are quickly crushed, and the particles with smaller particle sizes are carried up by the rotating airflow. In the rising process, they are further fully contacted with the hot air, heated and dried.

[0003] When the existing flash dryer dries the material, since the material is light, it will be blown out quickly, resulting in insufficient drying. At the same time, when crushing larger materials, under the action of wind, the crushing is also not sufficient, affecting the drying. To address the above problems, the present application designs a flash dryer. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a flash drying machine.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flash dryer, comprising a bottom plate, a drying tank and a heating device, a plurality of supporting feet are fixed to the bottom end of the drying tank, the supporting feet are fixed to the top end of the bottom plate, the heating device is fixed to the top end of the bottom plate, the heating device can heat air for transportation, an air inlet and an air outlet are arranged on the heating device, the air outlet is communicated with the drying tank, a blocking mechanism for blocking wind is arranged on the drying tank, the blocking mechanism comprises a motor bin and a first motor, the motor bin is fixed to the side wall of the drying tank by bolts, the first motor is installed in the motor bin, a roller is fixed to the output end of the first motor, the roller is connected to another roller by a transmission belt, a connecting shaft is fixed to both the two rollers, a first bevel gear is fixed to the other end of the connecting shaft, the first bevel gear is meshed with a second bevel gear, a second bevel gear is fixed to the A first gear is provided, a connecting block is fixed between the two first gears on the outer wall of the drying tank, and the two first gears are rotatably connected with the connecting block. A second motor is installed on the bottom end of the drying tank, and a rotating shaft is fixed upward at the output end of the second motor, and a fan blade is fixed on the rotating shaft, and two bearings are fixed on the rotating shaft, and the two bearings are located above the fan blades. A wind shield is fixed on the bearing, and a plurality of vents are provided on the wind shield, and a filter is fixed on the vent. An annular rack is fixed on the outer wall of the wind shield, and a groove adapted to the annular rack is provided on the inner wall of the drying tank, and a connecting groove connected with the groove is provided on the outer wall of the drying tank, and the first gear meshes with the annular rack through the connecting groove, and a breaking rod is fixed on the rotating shaft, and the breaking rod is located above the wind shield. A feed port is connected on the side wall of the drying tank, and a discharge port is connected on the top of the drying tank.

[0008] In order to fully crush the bulk materials, the utility model is improved in that the crushing rod is provided with anti-slip grooves, and the crushing rod is provided with a plurality of groups, which are evenly distributed on the rotating shaft from top to bottom.

[0009] In order to facilitate real-time observation of the drying condition of the material inside the drying tank, the utility model is improved in that an observation window is provided on the side wall of the drying tank.

[0010] In order to make the motor bin more stable, the utility model is improved in that a support frame is fixed to the bottom end of the motor bin, and the support frame is fixed to the top end of the bottom plate.

[0011] In order to prevent the materials from being accumulated on the inner top wall of the drying tank and being difficult to collect, the utility model is improved in that the inner top wall of the drying tank is arranged in an inverted funnel shape.

[0012] In order to facilitate cleaning of the inner bottom wall of the drying tank, the utility model is improved in that the bottom end of the drying tank is connected with a cleaning port.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a flash dryer, which has the following beneficial effects:

[0015] The flash dryer can achieve intermittent wind blocking through the blocking mechanism. The two wind shields rotate in opposite directions to each other, so that the wind can intermittently pass through the wind shields, thereby increasing the residence time of the material in the drying tank, thereby enabling the material to be dried more fully. At the same time, large pieces of material will continuously rise and fall onto the crushing rod, enabling it to be crushed more fully. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the first main structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the first partial structure of the utility model in section;

[0018] Figure 3 It is a schematic diagram of a second partial structure of the utility model in section;

[0019] Figure 4 It is a schematic diagram of the third partial structure of the utility model.

[0020] In the figure: 1. bottom plate; 2. drying tank; 3. heating device; 4. supporting foot; 5. air inlet; 6. air outlet; 7. motor compartment; 8. first motor; 9. roller; 10. transmission belt; 11. connecting shaft; 12. first bevel gear; 13. second bevel gear; 14. first gear; 15. connecting block; 16. second motor; 17. rotating shaft; 18. fan blade; 19. bearing; 20. wind shield; 21. vent; 22. filter; 23. annular gear; 24. slot; 25. connecting slot; 26. breaking rod; 27. feed port; 28. discharge port; 29. ​​observation window; 30. supporting frame; 31. cleaning port. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4A flash dryer comprises a bottom plate 1, a drying tank 2 and a heating device 3, wherein a plurality of supporting legs 4 are fixed to the bottom end of the drying tank 2, wherein the supporting legs 4 are fixed to the top of the bottom plate 1, and the heating device 3 is fixed to the top of the bottom plate 1, wherein the heating device 3 can heat air for transportation, and an air inlet 5 and an air outlet 6 are arranged on the heating device 3, wherein the air outlet 6 is communicated with the drying tank 2, and a blocking mechanism for blocking wind is arranged on the drying tank 2, wherein the blocking mechanism comprises a motor compartment 7 and a first motor 8, wherein the motor compartment 7 is connected to the first motor 8. The first motor 8 is fixed to the side wall of the drying tank 2 by bolts, the first motor 8 is installed in the motor compartment 7, a roller 9 is fixed to the output end of the first motor 8, the roller 9 is connected to another roller 9 through a transmission belt 10, a connecting shaft 11 is fixed to the two rollers 9, a first bevel gear 12 is fixed to the other end of the connecting shaft 11, the first bevel gear 12 is meshed with a second bevel gear 13, a first gear 14 is fixed to the second bevel gear 13, and the outer wall of the drying tank 2 is located at the two first gears. A connecting block 15 is fixed between the two first gears 14, the two first gears 14 are rotatably connected with the connecting block 15, a second motor 16 is installed at the bottom end of the drying tank 2, a rotating shaft 17 is fixed upwardly at the output end of the second motor 16, a fan blade 18 is fixed on the rotating shaft 17, two bearings 19 are fixed on the rotating shaft 17, the two bearings 19 are located above the fan blade 18, a windshield 20 is fixed on the bearings 19, a plurality of vents 21 are opened on the windshield 20, and a filter is fixed on the vent 21 22, an annular rack 23 is fixed on the outer wall of the wind shield 20, a slot 24 adapted to the annular rack 23 is provided on the inner wall of the drying tank 2, a connecting slot 25 connected to the slot 24 is provided on the outer wall of the drying tank 2, the first gear 14 passes through the connecting slot 25 and meshes with the annular rack 23, a breaking rod 26 is fixed on the rotating shaft 17, the breaking rod 26 is located above the wind shield 20, a feed port 27 is connected on the side wall of the drying tank 2, and a discharge port 28 is connected at the top of the drying tank 2.

[0023] When the flash dryer is in use, the heating device 3 is first started to transport the hot air to the bottom end of the drying tank 2, the second motor 16 is started to drive the rotating shaft 17 to rotate, the rotating shaft 17 drives the fan blades 18 and the crushing plate to rotate, the first motor 8 is started to drive the roller 9 to rotate, the two rollers 9 are arranged up and down, and the two rollers 9 are driven by the transmission belt 10. The two rollers 9 rotate in the same direction, thereby driving the first bevel gear 12 to rotate in the same direction, the first bevel gear 12 meshes with the second bevel gear 13, the upper second bevel gear 13 is located above the upper first gear 14 and is arranged upward, the lower second bevel gear 13 is located below the lower first gear 14 and is arranged downward, and the first bevel gear 12 rotates in the same direction. The second bevel gear 13 is arranged so that the two second bevel gears 13 drive the first gear 14 to rotate in opposite directions to each other. The first gear 14 meshes with the annular rack 23, driving the two annular racks 23 to rotate in the opposite direction to the wind shield 20, thereby realizing the intermittent closure of the vent 21, and allowing the hot air driven by the fan blades 18 to pass intermittently. The material is poured into the feed port 27, and the larger material falls onto the crushing rod 26 and is crushed. The lighter material moves upward under the action of the hot air driven by the fan blades 18 and is dried. However, under the action of the wind shield 20, the hot air passes intermittently, and the material continuously moves up and down under the action of gravity, and is finally collected at the discharge port 28 after drying.

[0024] In actual use, it is found that the crushing rod 26 is not sufficient to crush the material. In order to solve the above problem, in this embodiment, the crushing rod 26 is provided with anti-slip grooves. The crushing rod 26 is provided with several groups, which are evenly distributed on the rotating shaft 17 from top to bottom.

[0025] It is found in actual use that the drying tank 2 is a closed environment and it is not easy to observe the internal drying conditions in real time. In order to solve the above problem, in this embodiment, an observation window 29 is opened on the side wall of the drying tank 2.

[0026] It is found in actual use that the motor compartment 7 is in a suspended state and may shake. In order to avoid the above problem, in this embodiment, a support frame 30 is fixed to the bottom end of the motor compartment 7, and the support frame 30 is fixed to the top end of the base plate 1.

[0027] In actual use, it is found that the materials are blown onto the inner top wall of the drying tank 2 by the wind, and will accumulate, making it difficult to collect them. In order to solve the above problem, in this embodiment, the inner top wall of the drying tank 2 is set to an inverted funnel shape.

[0028] In actual use, it is found that after a long period of use, a small amount of accumulated materials will be present on the inner bottom wall of the drying tank 2, which is not easy to clean. In order to solve the above problem, in this embodiment, the bottom end of the drying tank 2 is connected to a cleaning port 31.

[0029] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0030] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0031] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A flash dryer, comprising a base plate (1), a drying tank (2) and a heating device (3), characterized in that: A plurality of supporting legs (4) are fixed to the bottom end of the drying tank (2), the supporting legs (4) are fixed to the top end of the bottom plate (1), the heating device (3) is fixed to the top end of the bottom plate (1), the heating device (3) is capable of heating air for transportation, an air inlet (5) and an air outlet (6) are provided on the heating device (3), the air outlet (6) is communicated with the drying tank (2), a blocking mechanism for blocking wind is provided on the drying tank (2), the blocking mechanism comprises a motor compartment (7) and a first motor (8), the motor compartment (7) is fixed to the side wall of the drying tank (2) by bolts, the first motor (8) (8) is installed in the motor compartment (7), a roller (9) is fixed at the output end of the first motor (8), the roller (9) is connected to another roller (9) through a transmission belt (10), a connecting shaft (11) is fixed to the two rollers (9), a first bevel gear (12) is fixed to the other end of the connecting shaft (11), the first bevel gear (12) is meshed with a second bevel gear (13), a first gear (14) is fixed to the second bevel gear (13), a connecting block (15) is fixed on the outer wall of the drying tank (2) between the two first gears (14), and the two The first gear (14) is rotatably connected to the connecting block (15); a second motor (16) is installed at the bottom end of the drying tank (2); a rotating shaft (17) is fixed upwardly at the output end of the second motor (16); a fan blade (18) is fixed on the rotating shaft (17); two bearings (19) are fixed on the rotating shaft (17); the two bearings (19) are located above the fan blade (18); a windshield (20) is fixed on the bearings (19); a plurality of vents (21) are provided on the windshield (20); a filter screen (22) is fixed on the vents (21); and the windshield ( An annular rack (23) is fixed on the outer wall of the drying tank (20), a slot (24) adapted to the annular rack (23) is provided on the inner wall of the drying tank (2), a connecting slot (25) connected to the slot (24) is provided on the outer wall of the drying tank (2), the first gear (14) passes through the connecting slot (25) and meshes with the annular rack (23), a crushing rod (26) is fixed on the rotating shaft (17), the crushing rod (26) is located above the wind shield (20), a feed inlet (27) is connected on the side wall of the drying tank (2), and a discharge outlet (28) is connected at the top of the drying tank (2).

2. A flash dryer according to claim 1, characterized in that: The crushing rod (26) is provided with anti-slip grooves, and the crushing rod (26) is provided in a plurality of groups and is evenly distributed on the rotating shaft (17) from top to bottom.

3. A flash dryer according to claim 1, characterized in that: An observation window (29) is provided on the side wall of the drying tank (2).

4. A flash dryer according to claim 1, characterized in that: A support frame (30) is fixed to the bottom end of the motor bin (7), and the support frame (30) is fixed to the top end of the bottom plate (1).

5. A flash dryer according to claim 1, characterized in that: The inner top wall of the drying tank (2) is arranged in an inverted funnel shape.

6. A flash dryer according to claim 1, characterized in that: The bottom end of the drying tank (2) is connected to a cleaning port (31).

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