Powder hot air circulation drying device

Abstract

The utility model relates to hot -blast circulation box technical field, concretely is a kind of powder hot -blast circulation drying device, including the horizontal fixed plate that is equipped with in box body, the horizontal fixed heating plate that is equipped with in plate below, multiple hot holes are equipped on heating plate, blowing assembly is equipped in heating plate below, the horizontal fixed backing plate that is equipped with in plate above, backing plate is placed with tray on, multiple first through -hole are equipped on backing plate;Gas collection tank is equipped in plate above, its lower end is connected with the gap on plate, gas collection tank both sides are fixed with multiple and the gas jet pipe that is connected with gas collection tank, the gas outlet of gas jet pipe is towards and corresponding box body side wall;Filtering box is equipped with filter assembly, the air inlet pipe of filtering box top is connected with box body top, the air outlet pipe of filtering box bottom is connected with heating plate below;Cleaning assembly is equipped in filtering box;The utility model has the advantages of making powder material everywhere heated evenly, reduce energy consumption, save production cost, reduce heat pollution to environment etc.

Description

Technical Field

[0001] This utility model relates to the field of hot air circulation box technology, specifically a powder hot air circulation drying device. Background Technology

[0002] In the production processes of many industries such as chemicals, food, and pharmaceuticals, the drying of powdered materials is a crucial step. Currently, common powder drying methods on the market mainly include natural air drying, hot air drying, and vacuum drying. Natural air drying is greatly limited by factors such as weather and site conditions, resulting in low drying efficiency and difficulty in ensuring product quality stability. Although vacuum drying has better drying effects, it has high equipment costs and high energy consumption, making it unsuitable for large-scale production. Hot air drying, on the other hand, has become a commonly used drying method due to its simple operation and relatively low cost.

[0003] Existing hot air drying equipment has many problems in practical applications. On the one hand, the uneven distribution of hot air inside the chamber leads to inconsistent drying effects on powder materials. Some materials may be over-dried, while others fail to reach the expected degree of dryness, seriously affecting product quality. On the other hand, the hot and humid air generated during the drying process is usually directly discharged into the outside environment, which not only wastes energy but may also pollute the environment. Utility Model Content

[0004] In view of this, the present invention provides a powder hot air circulation drying device, which aims to solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a powder hot air circulating drying device, comprising:

[0006] The box has a partition fixed horizontally on its upper part, a heating plate fixed horizontally below the partition, a plurality of heat passage holes on the heating plate, a blower assembly below the heating plate, a tray fixed horizontally above the partition, a tray for holding powder placed on the tray, and a plurality of first through holes on the tray.

[0007] An air collection box is located above the partition, with its lower end connected to a notch on the partition. Multiple jet pipes connected to the air collection box are fixed on both sides of the air collection box, with the air outlet of the jet pipe facing the corresponding side wall of the box.

[0008] A filter box containing a filter assembly, wherein the air inlet pipe at the top of the filter box is connected to the top of the box body, and the air outlet pipe at the bottom of the filter box is connected to the bottom of the heating plate.

[0009] A cleaning component, located inside the filter box, is used to clean impurities filtered by the filter component.

[0010] A further improvement of this utility model is that the blower assembly includes a first rotating shaft, which is horizontally disposed below the heating plate. A fan plate is fixed on the first rotating shaft along its axial direction. The first rotating shaft rotates alternately in both directions under the drive of the drive assembly.

[0011] A further improvement of this utility model is that the driving component includes:

[0012] The first motor is fixedly mounted on the housing, and a wheel is fixedly mounted on its power output end;

[0013] The guide column is eccentrically mounted on the disk surface via a moving component and moves radially along the disk under the drive of the moving component.

[0014] A rack is slidably mounted on the housing, and its lower end has an elongated slot that is slidably connected to the guide post. The rack meshes with the first gear on the first rotating shaft.

[0015] A further improvement of this invention is that the moving component includes:

[0016] A fixing groove is provided on the surface of the wheel disc along the radial direction of the wheel disc;

[0017] The first screw is located in the fixed groove and rotates under the drive of the third motor;

[0018] The first slider is disposed in the fixed groove and is threadedly connected to and passes through the first screw. The first slider is connected to the guide post.

[0019] A further improvement of this utility model is that the filter assembly includes a filter belt disposed inside the filter box and fitted on two rotatable rotating rollers, one of which rotates under the drive of a second motor, and the filter belt is provided with multiple filter holes.

[0020] A further improvement of this utility model is that the cleaning component includes multiple cleaning plates, which are fixedly arranged at intervals and parallel below the filter belt. The cleaning plates are inclined, and multiple brushes are fixedly arranged on the higher end of the cleaning plates. The brushes are in contact with the filter belt, and a baffle is fixed between the brushes and the air outlet pipe extending into the filter box. A collection box is provided below the cleaning plates.

[0021] A further improvement of this utility model is that the tray is provided with an openable and closable cover, and the cover is provided with a second through hole.

[0022] A further improvement of this utility model is that a sealed door is provided on one side of the box above the partition.

[0023] A further improvement of this utility model is that a temperature controller is provided inside the box.

[0024] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows:

[0025] This invention provides a powder hot air circulation drying device. Through the heat-through holes of the heating plate in the chamber and the first through hole of the tray, combined with the alternating forward and reverse rotation of the fan plate of the blowing assembly, hot air can be evenly directed upwards. Furthermore, through the design of the air collection box and the jet pipe, hot air is ejected from the side wall of the chamber, forming a three-dimensional circulating airflow. Compared with the prior art, this effectively avoids local hot air accumulation or insufficient heat, ensuring that the powder material is heated evenly throughout, and greatly improving the stability of product quality.

[0026] In this invention, the air discharged from the top of the chamber is filtered by the filter box and then sent back to the bottom of the heating plate for reheating and reuse through the air outlet pipe, realizing hot air circulation, reducing heat waste, effectively reducing energy consumption, saving production costs, and reducing thermal pollution to the environment. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of the drying device described in this utility model;

[0029] Figure 2 This is a schematic diagram of the blowing assembly of the drying device described in this utility model;

[0030] Figure 3 This is a schematic diagram of the drive assembly of the drying device described in this utility model;

[0031] Figure 4 This is a schematic diagram of the moving component of the drying device described in this utility model;

[0032] Figure 5 This is a schematic diagram of the filter assembly of the drying device described in this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 10-Box body, 101-Sealed door, 11-Partition, 111-Notch, 12-Heating plate, 121-Heating hole, 13-Panel, 131-Tray, 132-First through hole, 133-Lid, 134-Second through hole, 14-Air collection box, 141-Air jet pipe, 15-Filter box, 151-Air inlet pipe, 152-Air outlet pipe, 21-First rotating shaft, 22-Fan plate, 30-Drive assembly, 31-First motor, 32-Disc, 33-Guide column, 34-Rack, 341-Long slot, 35-First gear, 40-Moving assembly, 41-Fixing slot, 42-First screw, 43-Third motor, 44-First slider, 51-Filter belt, 511-Filter hole, 52-Rotating roller, 53-Cleaning plate, 54-Brush, 55-Collection box, 56-Baffle. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, in the following description, specific details such as particular system structures and technologies are set forth for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art should understand that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details hindering the description of the present invention.

[0036] This utility model provides a powder hot air circulating drying device, which, in conjunction with the appendix to the instruction manual, is described below. Figure 1 To be continued Figure 5 It is known that a powder hot air circulation drying device mainly includes the following parts or components: housing 10, air collection box 14, filter box 15, and cleaning components.

[0037] In this utility model, a partition 11 is horizontally fixed on the box body 10, a heating plate 12 is horizontally fixed below the partition 11, the heating plate 12 has multiple heat-through holes 121, a blower assembly is provided below the heating plate 12, a support plate 13 is horizontally fixed above the partition 11, a tray 131 for holding powder is placed on the support plate 13, and the support plate 13 has multiple first through holes 132; a gas collecting box 14 is located above the partition 11, its lower end is connected to the notch 111 on the partition 11, multiple jet pipes 141 connected to the gas collecting box 14 are fixed on both sides of the gas collecting box 14, and the air outlet of the jet pipe 141 faces the corresponding side wall of the box body 10; a filter assembly is provided inside the filter box 15, the air inlet pipe 151 at the top of the filter box 15 is connected to the top of the box body 10, and the air outlet pipe 152 at the bottom of the filter box 15 is connected to the lower part of the heating plate 12; a cleaning assembly is located inside the filter box 15 and is used to clean the impurities filtered by the filter assembly.

[0038] The powder is placed in the tray 131, and then the tray 131 is placed on the pallet 13. The heating plate 12 is activated, and the heating plate 12 begins to heat up. The blower assembly below converts the heat into hot air. When the blower assembly is working, the air flows upward through the heat-permeable holes 121 on the heating plate 12 to form initial hot air, which provides a heat source for drying. The generated hot air enters the air collection box 14 through the notch 111. The jet pipes 141 on both sides of the air collection box 14 spray the hot air towards the side wall of the box body 10, which promotes the hot air to form a three-dimensional circulation in the box body 10, ensuring that the powder material is heated evenly and avoiding local overheating or insufficient drying. The hot air rises and passes through the pallet 13. The pallet 13 is provided with multiple first through holes 132, which allow the hot air to pass through smoothly and heat the powder in the tray 131. After circulating in the box body 10, the hot air enters the filter box 15 through the air inlet pipe 151 at the top of the box body 10. The filter assembly in the filter box 15 filters the impurities carried in the hot air to ensure that the returned hot air is clean. The filtered hot air returns to the bottom of the heating plate 12 through the air outlet pipe 152 at the bottom of the filter box 15, is reheated and put into circulation, realizing the recycling of hot air and improving energy efficiency. During the process of filtering impurities by the filter component, the cleaning component works simultaneously, which can effectively prevent impurities from clogging the filter component and ensure the filtration effect and smooth hot air circulation.

[0039] As one embodiment, in conjunction with the appendix to the specification Figure 2 To be continued Figure 3 It is known that the blower assembly includes a first rotating shaft 21, which is horizontally positioned below the heating plate 12. A fan blade 22 is fixedly mounted on the first rotating shaft 21 along its axial direction. The first rotating shaft 21 rotates alternately in both directions under the drive of the drive assembly 30. The drive assembly 30 includes a first motor 31, which is fixedly mounted on the housing 10. A wheel 32 is fixedly mounted on its power output end. A guide post 33 is eccentrically mounted on the surface of the wheel 32 via a moving assembly 40 and moves radially along the wheel 32 under the drive of the moving assembly 40. A rack 34 is slidably mounted on the housing 10, and its lower end has an elongated slot 341 that is slidably connected to the guide post 33. The rack 34 meshes with a first gear 35 on the first rotating shaft 21.

[0040] The first motor 31 drives the wheel 32 to rotate, the wheel 32 drives the guide post 33 to rotate, the guide post 33 cooperates with the long slot 341 to drive the rack 34 to slide up and down, the rack 34 drives the first rotating shaft 21 to rotate alternately in the forward and reverse directions through the first gear 35, and the first rotating shaft 21 drives the fan plate 22 to fan.

[0041] In this embodiment, refer to the appendix to the specification. Figure 4It is known that the moving component 40 includes a fixed groove 41, which is arranged on the surface of the wheel 32 in the radial direction of the wheel 32; the first screw 42 is arranged in the fixed groove 41 and rotates under the drive of the third motor 43; the first slider 44 is arranged in the fixed groove 41 and is threadedly connected to and passes through the first screw 42, and the first slider 44 is connected to the guide post 33.

[0042] The third motor 43 drives the first screw 42 to rotate, which in turn drives the first slider 44 to move axially. The first slider 44 then drives the guide post 33 to move radially along the wheel 32, thereby changing the eccentric position of the guide post 33 on the wheel 32. After the guide post 33 changes position, the amplitude of the reciprocating linear sliding of the rack 34, which is slidably connected to the guide post 33, changes during the rotation of the wheel 32. The rack 34 meshes with the first gear 35 on the first rotating shaft 21, causing the angle and frequency of the first rotating shaft 21 to change, thus adjusting the oscillation amplitude and speed of the fan blades 22 on the first rotating shaft 21. Ultimately, this allows for flexible control of the coverage area and airflow intensity of hot air within the chamber 10 according to different material requirements, improving drying efficiency and quality.

[0043] When the temperature of the heating plate 12 rises rapidly, increasing the eccentricity can increase the fan frequency, accelerate heat dissipation, and achieve rapid cooling. If it is necessary to maintain a constant temperature of the heating plate 12, the fan frequency can be reduced by decreasing the eccentricity to avoid excessive heat dissipation and temperature fluctuations.

[0044] In this embodiment, refer to the appendix to the specification. Figure 5 As can be seen, the filter assembly includes a filter belt 51, which is disposed inside the filter box 15 and fitted onto two rotatable rotating rollers 52. One of the rotating rollers 52 rotates under the drive of a second motor (not shown in the figure). The filter belt 51 is provided with multiple filter holes 511. The cleaning assembly includes multiple cleaning plates 53, which are fixedly fixed below the filter belt 51 at intervals and in parallel. The cleaning plates 53 are inclined. Multiple brushes 54 are fixedly fixed on the higher end of the cleaning plates 53. The brushes 54 are in contact with the filter belt 51. A baffle 56 is fixed between the brushes 54 and the air outlet pipe 152 extending into the filter box 15. A collection box 55 is provided below the cleaning plates 53.

[0045] The filter holes 511 on the filter belt 51 filter impurities. After filtering for a period of time, the second motor drives one of the rotating rollers 52 to rotate. One rotating roller 52 cooperates with the other rotating roller 52, and the filter belt 51 rotates. The brush 54 continuously brushes the surface of the filter belt 51, scraping off the trapped impurities. The impurities fall off under the action of the brush 54 and slide down the inclined cleaning plate 53 into the collection box 55 below, realizing the centralized collection of impurities. The baffle 56 between the brush 54 and the air outlet pipe 152 can prevent impurities raised during the cleaning process from being sucked into the air outlet pipe 152, avoiding blockage of the pipe or affecting the cleanliness of the hot air circulation.

[0046] In this embodiment, refer to the appendix to the specification. Figure 1 It can be seen that the tray 131 is provided with an openable cover 133, and the cover 133 is provided with a second through hole 134.

[0047] The cover 133 is made of stainless steel wire mesh, and the diameter of the second through hole 134 is 0.1 to 0.5 mm, which is selected according to the particle size of the powder. This allows hot air to pass through while preventing powder from flying.

[0048] In this embodiment, refer to the appendix to the specification. Figure 1 It can be seen that a sealing door 101 is provided on one side of the box 10 above the partition 11.

[0049] In this embodiment, a temperature controller (not shown in the figure) is installed inside the housing 10. The temperature controller is electrically connected to the controller, and the first motor 31, the second motor, and the third motor 43 are all electrically connected to the controller.

[0050] It should be noted that in this patent application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0051] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A powder hot air circulating drying device, characterized in that, include: The box has a partition fixed horizontally on its upper part, a heating plate fixed horizontally below the partition, a plurality of heat passage holes on the heating plate, a blower assembly below the heating plate, a tray fixed horizontally above the partition, a tray for holding powder placed on the tray, and a plurality of first through holes on the tray. An air collection box is located above the partition, with its lower end connected to a notch on the partition. Multiple jet pipes connected to the air collection box are fixed on both sides of the air collection box, with the air outlet of the jet pipe facing the corresponding side wall of the box. A filter box containing a filter assembly, wherein the air inlet pipe at the top of the filter box is connected to the top of the box body, and the air outlet pipe at the bottom of the filter box is connected to the bottom of the heating plate. A cleaning component, located inside the filter box, is used to clean impurities filtered by the filter component.

2. The powder hot air circulating drying device according to claim 1, characterized in that, The blower assembly includes a first rotating shaft, which is horizontally positioned below the heating plate. A fan blade is fixed on the first rotating shaft along its axial direction. The first rotating shaft rotates alternately in both directions under the drive of the drive assembly.

3. The powder hot air circulating drying device according to claim 2, characterized in that, The driving component includes: The first motor is fixedly mounted on the housing, and a wheel is fixedly mounted on its power output end; The guide column is eccentrically mounted on the disk surface via a moving component and moves radially along the disk under the drive of the moving component. A rack is slidably mounted on the housing, and its lower end has an elongated slot that is slidably connected to the guide post. The rack meshes with the first gear on the first rotating shaft.

4. The powder hot air circulating drying device according to claim 3, characterized in that, The moving component includes: A fixing groove is provided on the surface of the wheel disc along the radial direction of the wheel disc; The first screw is located in the fixed groove and rotates under the drive of the third motor; The first slider is disposed in the fixed groove and is threadedly connected to and passes through the first screw. The first slider is connected to the guide post.

5. The powder hot air circulating drying device according to claim 3, characterized in that, The filter assembly includes a filter belt disposed inside the filter box and fitted onto two rotatable rotating rollers, one of which rotates under the drive of a second motor. The filter belt is provided with multiple filter holes.

6. The powder hot air circulating drying device according to claim 5, characterized in that, The cleaning assembly includes multiple cleaning plates, which are fixedly installed below the filter belt at intervals and in parallel. The cleaning plates are inclined. Multiple brushes are fixedly installed on the higher end of the cleaning plates. The brushes are in contact with the filter belt. A baffle is fixed between the brushes and the air outlet pipe extending into the filter box. A collection box is provided below the cleaning plates.

7. The powder hot air circulating drying device according to claim 1, characterized in that, The tray is provided with an openable cover, and the cover is provided with a second through hole.

8. A powder hot air circulating drying device according to any one of claims 1-7, characterized in that, A sealed door is provided on one side of the box above the partition.

9. A powder hot air circulating drying device according to claim 8, characterized in that, The box is equipped with a temperature controller.

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