Hot air drying device

Abstract

The utility model discloses a hot air drying device, relates to the technical field of drying equipment, and mainly aims to promote rapid drying of moisture of grain crop fruit particles. According to the main technical scheme, the hot air drying device comprises a shell and an airflow mechanism; the top wall of the shell is connected to the feeding hopper, a partition plate is arranged in the shell and used for dividing the shell into an upper shell body and a lower shell body, a plurality of first through holes are evenly distributed in the partition plate, the partition plate is obliquely arranged, a discharging port is formed in the portion, at the lower end of the oblique direction of the partition plate, of the side wall of the upper shell body, and a plurality of baffle plates are alternately arranged in the upper shell body from top to bottom and used for forming a baffle channel. Each baffle plate is obliquely arranged, and a plurality of second through holes are uniformly distributed in each baffle plate; the airflow mechanism comprises an air inlet pipe and an exhaust pipe, one end of the air inlet pipe is connected to the lower end of the shell, one end of the exhaust pipe is connected to the top wall of the shell, the other end of the exhaust pipe is connected to the exhaust mechanism, and a heating component is arranged in the air inlet pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of drying equipment, in particular to a hot air drying device. Background Art

[0002] Grains are living organisms, and moisture is the condition for their survival. However, excessive moisture will induce the growth of insects and microorganisms, and easily cause the grains to heat up, ferment, deteriorate, and the germination rate to decline. Taking the harvesting of big melons and gourd melons as an example, after harvesting big melons and gourd melons, take their seeds, and the seeds need to be sun-dried to be preserved. At present, controlling the moisture of grains mainly includes natural sun-drying and drying through grain dryers.

[0003] Natural sun-drying is easily restricted by factors such as weather and site. In the main grain-producing areas, due to large yields and insufficient sun-drying sites, the moisture of the grains purchased by grain depots often exceeds the safe moisture, which is the main factor leading to grain mildew, especially when the grain purchase period coincides with continuous cloudy days. In addition, even if the moisture of the grains does not exceed the safe moisture when they are put into storage, due to natural moisture absorption, the stored grains also need to be sun-dried regularly to ensure that the grains do not mildew. Summary of the Utility Model

[0004] In view of this, an embodiment of the utility model provides a hot air drying device, and the main purpose is to promote the rapid drying of the moisture of grain crop fruit particles.

[0005] To achieve the above purpose, the utility model mainly provides the following technical solutions:

[0006] An embodiment of the utility model provides a hot air drying device, which includes: a housing and an air flow mechanism;

[0007] The top wall of the housing is connected to a feed hopper. A partition is provided inside the housing for dividing the housing into an upper housing and a lower housing. The partition is evenly provided with a plurality of first through holes. The partition is inclined. An outlet is provided on the side wall of the upper housing at the lower end of the inclined direction of the partition. A plurality of baffle plates are alternately arranged from top to bottom inside the upper housing for forming a baffle channel. Each baffle plate is inclined. Each baffle plate is evenly provided with a plurality of second through holes;

[0008] The air flow mechanism includes an air inlet pipe and an air extraction pipe. One end of the air inlet pipe is connected to the lower end of the housing. One end of the air extraction pipe is connected to the top wall of the housing, and the other end is connected to an air extraction mechanism. A heating component is provided inside the air inlet pipe.

[0009] The purpose of the utility model and the solution of its technical problems can also be further realized by adopting the following technical measures.

[0010] Optionally, it further includes a vibration mechanism, which includes a frame and two vibration motors. The frame is respectively connected to the opposite side walls of the housing through springs, and the two vibration motors are fixedly connected to the opposite side walls of the housing.

[0011] Optionally, it further includes a hollow ball, which is provided with an opening. The opposite sides of the hollow ball are respectively rotatably connected to the inner side of the lower end of the feed hopper through radial shafts, and the radial shafts are coaxially connected to a driving mechanism for driving the hollow ball to turn up and down relative to the feed hopper.

[0012] Optionally, the upper edge of the discharge port is rotatably connected to a baffle for preventing external air flow from entering the housing through the discharge port.

[0013] Optionally, it further includes a pushing mechanism, which includes a cylinder and a push plate. The cylinder is fixedly connected to the side wall of the upper housing, and the piston rod of the cylinder is connected to the push plate for driving the push plate to reciprocate along the inclined direction of the partition plate.

[0014] Optionally, the air extraction mechanism includes a bag filter and a suction fan. The other end of the suction pipe is connected to the inlet of the bag filter, and the outlet of the bag filter is connected to the suction fan.

[0015] By means of the above technical solution, the utility model has at least the following advantages:

[0016] The fruit grain materials of food crops enter the housing from the feed hopper, and the grain materials flow downward along the inclined surfaces of the plurality of baffle plates, extending the residence time of the grain materials in the housing. At the same time, under the driving action of the air extraction mechanism, external air enters the intake pipe, is heated by the heating component, and then enters the housing. The hot air sequentially passes through the first through hole and the second through hole, and exchanges heat with the grain materials in a countercurrent manner. At the same time, the hot air also has a lifting effect on the grain materials, delaying the falling speed of the grain materials and further extending the residence time of the grain materials in the housing. Finally, the moisture in the grain materials volatilizes and is discharged along the suction pipe with the hot air.

[0017] Finally, the falling grain materials are discharged through the discharge port on the side wall of the upper housing, completing the rapid drying of the moisture in the fruit grains of food crops and facilitating subsequent storage. Description of the Drawings

[0018] Figure 1 It is a diagram of a hot air drying device provided by an embodiment of the utility model.

[0019] The reference numerals in the accompanying drawings of the specification include: housing 1, feed hopper 2, partition plate 3, first through hole 4, discharge port 5, baffle plate 6, second through hole 7, intake pipe 8, extraction pipe 9, heating component 10, frame 11, vibration motor 12, bearing plate 13, spring 14, hollow ball 15, radial shaft 16, baffle 17, cylinder 18, push plate 19, bag filter 20, exhaust fan 21. Detailed implementation manners

[0020] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, describe in detail the specific implementation manners, structures, features, and effects of the application according to the present utility model. In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0021] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] As Figure 1 shown, a hot air drying device provided by an embodiment of the present utility model includes: a housing 1 and an air flow mechanism;

[0023] The top wall of the housing 1 is connected to the feed hopper 2. A partition plate 3 is provided inside the housing 1 for separating the housing 1 into an upper housing 1 and a lower housing 1. The partition plate 3 is evenly provided with a plurality of first through holes 4. The partition plate 3 is inclined. A discharge port 5 is provided on the side wall of the upper housing 1 at the lower end of the inclined direction of the partition plate 3. A plurality of baffle plates 6 are alternately arranged from top to bottom inside the upper housing 1 for forming a baffle channel. Each baffle plate 6 is inclined. Each baffle plate 6 is evenly provided with a plurality of second through holes 7;

[0024] The air flow mechanism includes an intake pipe 8 and an extraction pipe 9. One end of the intake pipe 8 is connected to the lower end of the housing 1. One end of the extraction pipe 9 is connected to the top wall of the housing 1, and the other end is connected to an air extraction mechanism. A heating component 10 is provided inside the intake pipe 8.

[0025] The working process of the hot air drying device is as follows:

[0026] The grain crop fruit granular material enters the housing 1 from the feed hopper 2. The granular material flows downward along the inclined surfaces of multiple baffle plates 6, extending the residence time of the granular material in the housing 1. Meanwhile, under the driving action of the air extraction mechanism, external air enters the air inlet pipe 8, is heated by the heating component 10, and then enters the housing 1. The hot air sequentially passes through the first through hole 4 and the second through hole 7, and exchanges heat with the granular material in a countercurrent manner. At the same time, the hot air also has a lifting effect on the granular material, delaying the falling speed of the granular material and further extending the residence time of the granular material in the housing 1. Finally, the moisture in the granular material volatilizes and is discharged along the air extraction pipe 9 with the hot air.

[0027] Finally, the falling granular material is discharged through the discharge port 5 on the side wall of the upper housing 1, completing the rapid drying of the moisture in the grain crop fruit granules and facilitating subsequent storage.

[0028] Specifically, when the granular material continuously enters and exits the housing 1, the granular material flow occupies the radial cross-section of the feed hopper 2 and also occupies the discharge port 5, preventing external air from entering the housing 1 through the feed hopper 2 and the discharge port 5. Thus, the external air enters the housing 1 through the air inlet pipe 8, ensuring that the external air is heated before contacting the granular material for countercurrent heat exchange.

[0029] Specifically, the aperture of the first through hole 4 and the aperture of the second through hole 7 are both smaller than the particle size of the granular material, thereby preventing the granular material from passing through the second through hole 7 and the first through hole 4, forcing the granular material to slide downward along the inclined directions of the baffle plate 6 and the partition plate 3 in sequence.

[0030] Specifically, the heating component 10 adopts the resistance wire structure of a hair dryer to heat the air in the air inlet pipe 8.

[0031] As Figure 1 shown, in the specific embodiment, it further includes a vibration mechanism. The vibration mechanism includes a frame 11 and two vibration motors 12. The frame 11 is respectively connected to the opposite side walls of the housing 1 through springs 14, and the two vibration motors 12 are fixedly connected to the opposite side walls of the housing 1.

[0032] In this embodiment, specifically, the frame 11 is fixed to the ground. The springs 14 and the frame 11 are symmetrically arranged on the opposite sides of the housing 1 respectively. The lower end of the spring 14 is fixedly connected to the frame 11, and the upper end is fixedly connected to the bearing plate 13. The side of the bearing plate 13 is fixedly welded to the side wall of the housing 1. The vibration motor 12 is fixedly installed on the upper surface of the bearing plate 13;

[0033] During the operation of this device, the granular material rolls downward along multiple baffle plates 6. Meanwhile, the vibration motor 12 drives the housing 1 and multiple baffle plates 6 to vibrate continuously, preventing the granular material from adhering to the upper surface of the baffle plate 6 and preventing the granular material from remaining in the housing 1.

[0034] Specifically, the intake pipe 8, the extraction pipe 9, and the feed hopper 2 are respectively connected to the housing 1 through flexible hoses, preventing the vibration of the housing 1 from being transmitted to the intake pipe 8, the extraction pipe 9, and the feed hopper 2.

[0035] As Figure 1 shown, in the specific embodiment, it further includes a hollow ball 15. The hollow ball 15 is provided with an opening. The opposite sides of the hollow ball 15 are respectively rotatably connected to the inner side of the lower end of the feed hopper 2 through radial shafts 16. The radial shafts 16 are coaxially connected to a driving mechanism for driving the hollow ball 15 to flip up and down relative to the feed hopper 2.

[0036] In this embodiment, specifically, the plane where the opening of the hollow ball 15 is located is parallel to the radial shaft 16. When the hollow ball 15 flips relative to the feed hopper 2, the direction of the opening also changes periodically. When the opening faces upward, it receives particulate materials, and when the opening faces downward, it dumps the particulate materials into the housing 1.

[0037] At the same time, since the radial cross-sectional dimension of the hollow ball 15 is slightly smaller than the radial cross-sectional dimension of the lower end of the feed hopper 2, when the feed hopper 2 is filled with particulate materials, it separates the inner and outer spaces of the housing 1, reducing the probability of external air entering the housing 1 through the feed hopper 2.

[0038] Specifically, a programmed control motor is fixedly installed on the outer side of the feed hopper 2. The output shaft of the programmed control motor is coaxially connected to the radial shaft 16, thereby driving the hollow ball 15 and the radial shaft 16 to rotate synchronously.

[0039] As Figure 1 shown, in the specific embodiment, the upper edge of the discharge port 5 is rotatably connected to a baffle 17 for preventing external air flow from entering the housing 1 through the discharge port 5.

[0040] In this embodiment, specifically, the upper edge of the baffle 17 is rotatably connected to the outer edge of the upper side of the discharge port 5. The particulate materials inside the housing 1 roll down along the partition plate 3 and impact the baffle 17, causing the baffle 17 to open outward without affecting the discharge after drying.

[0041] Even if the air pressure inside the housing 1 is less than the air pressure outside the housing 1 due to the pumping action of the air extraction mechanism, but due to the blockage of the baffle 17, external air cannot easily enter the housing 1 through the discharge port 5, forcing external air to enter the housing 1 only through the intake pipe 8 to balance the air pressure inside and outside the housing 1, ensuring that the external air can contact the particulate materials only after being fully heated.

[0042] As Figure 1As shown, in the specific implementation manner, a material pushing mechanism is further included. The material pushing mechanism includes a cylinder 18 and a push plate 19. The cylinder 18 is fixedly connected to the side wall of the upper housing 1, and the piston rod of the cylinder 18 is connected to the push plate 19 for driving the push plate 19 to reciprocate along the inclined direction of the partition plate 3.

[0043] In this implementation manner, in order to avoid the slow discharge speed of the granular material due to the blocking effect of the baffle 17, the piston rod of the cylinder 18 pushes the push plate 19 to reciprocate along the inclined direction of the partition plate 3, and the push plate 19 pushes the granular material downward to accelerate the speed of the granular material passing through the discharge port 5.

[0044] Specifically, along the inclined direction of the partition plate 3, the cross-sectional shape of the push plate 19 is a right triangle. The first right side of the triangle contacts the partition plate 3, the second right side faces the discharge port 5, the second right side is perpendicular to the partition plate 3, and the hypotenuse of the triangle faces the cylinder 18. The piston rod of the cylinder 18 is connected to the side surface of the push plate 19 where the hypotenuse is located.

[0045] During the operation of the device, when the piston rod of the cylinder 18 extends, the side surface of the push plate 19 where the second right side is located pushes the granular material to roll downward; when the piston rod of the cylinder 18 contracts, the side surface of the push plate 19 where the hypotenuse is located moves upward (the angle between the side surface of the push plate 19 where the hypotenuse is located and the partition plate 3 is an obtuse angle), and the granular material rolling downward along the partition plate 3 can easily pass over the push plate 19. Therefore, when the push plate 19 moves upward, the resistance to the granular material is small.

[0046] Through the setting of this implementation manner, the positive effect of the material pushing mechanism is greater than the negative effect, and the discharge speed is accelerated.

[0047] As Figure 1 shown, in the specific implementation manner, the air extraction mechanism includes a bag filter 20 and a suction fan 21. The other end of the suction pipe 9 is connected to the inlet of the bag filter 20, and the outlet of the bag filter 20 is connected to the suction fan 21.

[0048] In this implementation manner, specifically, driven by the suction fan 21, the outside air sequentially flows through the intake pipe 8, the housing 1, the suction pipe 9 and the bag filter 20, and drives the small-particle impurities in the housing 1 into the bag filter 20 to collect the small-particle impurities.

[0049] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A hot air drying device, characterized in that: include: A shell, the top wall of the shell is connected to the feed hopper, a partition is provided inside the shell for dividing the shell into an upper shell and a lower shell, the partition is evenly distributed with a plurality of first through holes, the partition is tilted, a discharge port is provided on the side wall of the upper shell at the lower end of the tilting direction of the partition, a plurality of baffles are alternately arranged from top to bottom inside the upper shell for forming a baffle channel, each of the baffles is tilted, and each of the baffles is evenly distributed with a plurality of second through holes; The airflow mechanism comprises an air inlet pipe and an air exhaust pipe, one end of the air inlet pipe is connected to the lower end of the shell, one end of the air exhaust pipe is connected to the top wall of the shell, and the other end is connected to the air exhaust mechanism, and a heating component is provided in the air inlet pipe.

2. The hot air drying device according to claim 1, characterized in that: It also includes an oscillation mechanism, which includes a frame and two oscillation motors. The frame is respectively connected to the opposite side walls of the shell through springs, and the two oscillation motors are fixedly connected to the opposite side walls of the shell.

3. The hot air drying device according to claim 1, characterized in that: It also includes a hollow ball, which is provided with an opening. The opposite sides of the hollow ball are rotatably connected to the inner side of the lower end of the feed hopper through radial axes. The radial axis is coaxially connected to a driving mechanism to drive the hollow ball to flip up and down relative to the feed hopper.

4. The hot air drying device according to claim 1, characterized in that: The upper edge of the discharge port is rotatably connected to the baffle plate to prevent external airflow from entering the shell through the discharge port.

5. The hot air drying device according to claim 4, characterized in that: It also includes a pushing mechanism, which includes a cylinder and a pushing plate. The cylinder is fixedly connected to the side wall of the upper shell, and the piston rod of the cylinder is connected to the pushing plate to drive the pushing plate to reciprocate along the inclined direction of the partition.

6. The hot air drying device according to any one of claims 1 to 5, characterized in that: The air extraction mechanism comprises a bag dust collector and an exhaust fan, the other end of the air extraction pipe is connected to the inlet of the bag dust collector, and the outlet of the bag dust collector is connected to the exhaust fan.

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