Large longan self-circulation heating dryer

Abstract

The utility model provides a large-scale longan self-circulation heating and drying machine, which belongs to the technical field of longan heating and drying and comprises a support table, a turnover mechanism is mounted on the upper surface of the support table, a driving mechanism is mounted on the surface of one side of the support table, an electric heating pump is mounted on the other side of the support table, and an air circulation mechanism is arranged on the support table. A plurality of supporting legs are installed at the bottom of the supporting table, and a screening mechanism is installed on the surfaces of the supporting legs and located below the supporting table. According to the scheme, longans are poured into the overturning mechanism, at the moment, the driving mechanism, the electric heating pump and the air circulation mechanism are started at the same time, and at the moment, the driving mechanism drives the overturning mechanism to work; and meanwhile, the electric heating pump heats the interior of the overturning mechanism, the air circulation mechanism conveys air in the overturning mechanism back to the electric heating pump, then the hot air circulation effect is achieved, the resource utilization rate is increased, and the air circulation mechanism can filter impurities in the air.

Description

Technical Field

[0001] The utility model belongs to the technical field of heating and drying longan, and in particular relates to a large-scale self-circulating heating and drying machine for longan. Background Art

[0002] Longan, also known as longan or round eye, is an evergreen tree of the genus Longan in the Sapindaceae family and one of the four precious fruits in South China. Longan has thick twigs, slightly pubescent, and scattered pale lenticels; the leaflets are thinly leathery, oblong-elliptical to oblong-lanceolate, often asymmetrical on both sides, dark green and shiny on the ventral side, pink-green on the back, and glabrous on both sides; the pedicels are short, the petals are milky white, lanceolate, and only slightly pubescent on the outside; the fruit is nearly spherical, usually yellow-brown or sometimes gray-yellow, slightly rough on the outside, or with slightly convex tubercles; the flowering period is between spring and summer, and the fruiting period is in summer. It is native to southern and southwestern China and is also commonly cultivated in southern and southeastern Asia.

[0003] The existing public patent number is CN206658989U, and the public name is a longan hot air drying device, including a circulating fan, an electric heating wire, an air duct, an oven and a return air duct connected in series in sequence. The air duct is arranged on one side of the oven, and the return air duct is arranged on the other side of the oven. An upper air distribution duct and a lower air distribution duct are respectively arranged in the oven and above and below the longan conveying mesh belt. The upper air distribution duct and the lower air distribution duct are respectively connected to the air outlet port of the air duct, and a plurality of downward blowing holes are spaced apart at intervals at the bottom of the upper air distribution duct, and a plurality of upward blowing holes are spaced apart at intervals at the top of the lower air distribution duct. The air inlet port of the return air duct is connected to a lower return air branch pipe and an upper return air branch pipe, and the lower return air branch pipe and the upper return air branch pipe are respectively connected to the exhaust port of the side wall of the oven.

[0004] Although the above-mentioned drying device adopts an upward and downward blowing air supply method, which not only makes the heat distribution in the oven more uniform, thereby improving the drying effect, but also makes full use of electric energy, embodying the characteristics of energy saving and environmental protection, the above-mentioned drying device is not convenient for turning the longans when heating them, thereby reducing the heating effect of the longans. At the same time, it is not convenient to filter impurities in the air when recycling the air, thereby affecting the drying effect. Utility Model Content

[0005] The purpose of the utility model is to provide a large-scale longan self-circulating heating drying machine, aiming to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A large-scale self-circulating heating and drying machine for longan comprises: a support table, a turning mechanism is installed on the upper surface of the support table, a driving mechanism is installed on the surface of one side of the support table, an electric heat pump is installed on the other side of the support table, an air circulation mechanism is arranged on the support table, a plurality of supporting legs are installed on the bottom of the support table, and a screening mechanism is installed on the surface of the supporting legs and below the support table.

[0008] As a preferred solution of the utility model, the flipping mechanism includes a drying barrel and a transfer box installed on the upper surface of the support platform, and one end of the drying barrel is connected to the transfer box, the electric heat pump is connected to the drying barrel, the interior of the drying barrel is rotatably connected with a flipping shaft, the surface of the flipping shaft is installed with spiral blades, and a feed hopper is installed on the upper surface of the drying barrel, and a protective door is provided on the feed hopper.

[0009] As a preferred solution of the utility model, the driving mechanism includes a first mounting plate installed on the upper surface of the support platform and located on one side of the transfer box, a servo motor is installed on the surface of the first mounting plate, and pulleys are installed on the surface of the servo motor output shaft and the surface of the flip shaft, and the two pulleys are rotatably connected by a transmission belt.

[0010] As a preferred solution of the utility model, the air circulation mechanism includes a collecting box installed on the surface of the support platform and a blower arranged on one side of the transfer box, the air inlet end of the blower is connected with the transfer box through a first air duct, a filter box is installed on the top of the collecting box, and the filter box is connected with the electric heat pump, the air outlet end of the blower is connected with the filter box through a second air duct, and a filter plate is provided on the surface of the filter box.

[0011] As a preferred solution of the utility model, a material discharge plate is slidably connected to the surface of the collection box, and a movable handle is installed on the material discharge plate.

[0012] As a preferred solution of the utility model, the screening mechanism includes a screening box installed on the inner side of the supporting leg, a top cover is installed on the upper surface of the screening box, a screening net is installed inside the screening box, a connecting bucket and an exhaust valve are installed on the surface of the top cover, and the connecting bucket is connected to the bottom of the transfer box, a first lower hopper and a second lower hopper are installed on one side of the screening box, and the second lower hopper is located below the screening net, and a vibration motor is provided at the bottom of the screening box.

[0013] As a preferred solution of the utility model, a plurality of mounting seats are installed on both sides of the screening box, a spring telescopic rod is installed at the bottom of the mounting seat, and the spring telescopic rod is installed on the surface of the supporting leg.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] This solution works by pouring the longans into the interior of the flipping mechanism, and simultaneously starting the driving mechanism, the electric heat pump and the air circulation mechanism. The driving mechanism then drives the flipping mechanism to work, thereby flipping and moving the longans, and the electric heat pump heats the interior of the flipping mechanism. The air circulation mechanism transports the air inside the flipping mechanism back to the electric heat pump, thereby achieving the effect of hot air circulation, improving resource utilization, and the air circulation mechanism filters impurities in the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0017] In the attached picture:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional schematic diagram of a local structure in the structure of the utility model from a first viewing angle;

[0020] Figure 3 It is a cross-sectional schematic diagram of a local structure in the structure of the utility model from a second viewing angle;

[0021] Figure 4 It is a schematic diagram of the screening mechanism in the structure of the utility model.

[0022] In the figure: 1, support table; 2, turning mechanism; 201, drying barrel; 202, turning shaft; 203, spiral blade; 204, feeding hopper; 205, protection door; 206, transfer box; 3, driving mechanism; 301, first mounting plate; 302, servo motor; 303, pulley; 304, driving belt; 4, electric heat pump; 5, air circulation mechanism; 501, blower; 502, first air guide pipe; 503, first Two air ducts; 504, collecting box; 505, filter box; 506, filter plate; 507, unloading plate; 508, moving handle; 6, supporting legs; 7, screening mechanism; 701, screening box; 702, top cover; 703, screening net; 704, connecting bucket; 705, exhaust valve; 706, vibration motor; 707, first unloading hopper; 708, second unloading hopper; 709, mounting seat; 710, spring telescopic rod. DETAILED DESCRIPTION

[0023] 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.

[0024] Example

[0025] See also Figure 1-4 , the technical solution provided by this embodiment is as follows:

[0026] The large-scale self-circulating heating and drying machine for longan comprises: a support platform 1, a turning mechanism 2 is installed on the upper surface of the support platform 1, a driving mechanism 3 is installed on the surface of one side of the support platform 1, an electric heat pump 4 is installed on the other side of the support platform 1, an air circulation mechanism 5 is arranged on the support platform 1, a plurality of supporting legs 6 are installed at the bottom of the support platform 1, a screening mechanism 7 is installed on the surface of the supporting legs 6 and below the support platform 1, and the longan is poured into the interior of the turning mechanism 2, and the driving mechanism 3, the electric heat pump 4 and the air circulation mechanism 5 are started at the same time, and the driving mechanism 3 drives the turning mechanism 2 to work, so as to turn and move the longan, and at the same time the electric heat pump 4 heats the interior of the turning mechanism 2, and the air circulation mechanism 5 will transport the air inside the turning mechanism 2 back to the electric heat pump 4, so as to achieve the effect of hot air circulation, improve resource utilization, and the air circulation mechanism 5 will filter impurities in the air.

[0027] Specifically, the flipping mechanism 2 includes a drying barrel 201 and a transfer box 206 installed on the upper surface of the support platform 1, and one end of the drying barrel 201 is connected to the transfer box 206, the electric heat pump 4 is connected to the drying barrel 201, and the internal rotation of the drying barrel 201 is connected to the flip shaft 202, and the surface of the flip shaft 202 is installed with spiral blades 203. A feed hopper 204 is installed on the upper surface of the drying barrel 201, and a protective door 205 is provided on the feed hopper 204.

[0028] In a specific embodiment of the present invention, when the turning shaft 202 rotates, the spiral blade 203 is driven to rotate, thereby turning the longans inside the drying barrel 201, and then the longans are moved to the inside of the transfer box 206.

[0029] Specifically, the driving mechanism 3 includes a first mounting plate 301 installed on the upper surface of the support platform 1 and located on one side of the transfer box 206. A servo motor 302 is installed on the surface of the first mounting plate 301. Pulleys 303 are installed on the surface of the output shaft of the servo motor 302 and the surface of the flip shaft 202. The two pulleys 303 are rotatably connected through a transmission belt 304.

[0030] In a specific embodiment of the present utility model, when the servo motor 302 is started, the flip shaft 202 is driven to rotate under the action of the pulley 303 and the transmission belt 304 .

[0031] Specifically, the air circulation mechanism 5 includes a collecting box 504 installed on the surface of the support platform 1 and a blower 501 arranged on one side of the transfer box 206. The air inlet end of the blower 501 is connected with the transfer box 206 through the first air duct 502. A filter box 505 is installed on the top of the collecting box 504, and the filter box 505 is connected with the electric heat pump 4. The air outlet end of the blower 501 is connected with the filter box 505 through the second air duct 503. The surface of the filter box 505 is provided with a filter plate 506. The surface of the collecting box 504 is slidably connected with a discharge plate 507, and a movable handle 508 is installed on the discharge plate 507.

[0032] In a specific embodiment of the utility model, the blower 501 sucks out the gas inside the transfer box 206 through the first air duct 502, and transports the gas to the inside of the filter box 505 through the second air duct 503, and then the gas is transported back to the inside of the electric heat pump 4. At the same time, the filter plate 506 filters the gas, and the filtered impurities will fall into the inside of the collection box 504 for collection, and the staff can remove the unloading plate 507 by moving the handle 508.

[0033] Specifically, the screening mechanism 7 includes a screening box 701 installed on the inner side of the supporting leg 6, a top cover 702 is installed on the upper surface of the screening box 701, a screening net 703 is installed inside the screening box 701, a connecting bucket 704 and an exhaust valve 705 are installed on the surface of the top cover, and the connecting bucket 704 is connected to the bottom of the transfer box 206, a first lower hopper 707 and a second lower hopper 708 are installed on one side of the screening box 701, and the second lower hopper 708 is located below the screening net 703, and multiple mounting seats 709 are installed on both sides of the screening box 701, and a spring telescopic rod 710 is installed at the bottom of the mounting seat 709, and the spring telescopic rod 710 is installed on the surface of the supporting leg 6.

[0034] In a specific embodiment of the utility model, under the action of the connecting bucket 704, the longans inside the transfer box 206 will fall into the interior of the screening box 701 and be located on the surface of the screening mesh 703. At this time, the vibration motor 706 starts to drive the screening box 701 to vibrate, and the longans are discharged through the first lower hopper 707 under the action of vibration. The impurities generated by the vibration will pass through the screening mesh 703 and be discharged through the second lower hopper 708. When the screening box 701 vibrates, the mounting seat 709 and the spring telescopic rod 710 will support it.

[0035] Working principle: by pouring the longan into the interior of the flip mechanism 2, the servo motor 302, the electric heat pump 4 and the blower 501 are started at the same time, the output shaft of the servo motor 302 drives the flip shaft 202 to rotate under the action of the pulley 303 and the transmission belt 304, and the rotation of the flip shaft 202 drives the spiral blade 203 to rotate, thereby turning the longan inside the drying barrel 201, and then the longan will move to the interior of the transfer box 206. At this time, the driving mechanism 3 drives the flip mechanism 2 to work, thereby turning and moving the longan, and the electric heat pump 4 heats the interior of the flip mechanism 2. At the same time, the blower 501 sucks out the gas inside the transfer box 206 through the first air duct 502, and transports the gas to the filter box 505 through the second air duct 503. , and then the gas is transported back to the interior of the electric heat pump 4. At the same time, the filter plate 506 filters the gas, and the filtered impurities will fall into the collection box 504 for collection. The staff can move the discharge plate 507 by moving the handle 508, thereby achieving the effect of hot gas circulation. Under the action of the connecting bucket 704, the longan inside the transfer box 206 will fall into the interior of the screening box 701 and be located on the surface of the screening net 703. At this time, the vibration motor 706 starts to drive the screening box 701 to vibrate. The longan is discharged through the first discharge hopper 707 under the action of vibration. Because the impurities generated by the vibration will pass through the screening net 703 and be discharged through the second discharge hopper 708, the screening box 701 is supported by the mounting seat 709 and the spring telescopic rod 710 when it vibrates.

[0036] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Large-scale longan self-circulation heating drying machine, characterized in that: include: A support platform (1), wherein a turning mechanism (2) is installed on the upper surface of the support platform (1), a driving mechanism (3) is installed on the surface of one side of the support platform (1), an electric heat pump (4) is installed on the other side of the support platform (1), an air circulation mechanism (5) is provided on the support platform (1), a plurality of support legs (6) are installed at the bottom of the support platform (1), and a screening mechanism (7) is installed on the surface of the support legs (6) and below the support platform (1).

2. The large-scale longan self-circulation heating drying machine according to claim 1 is characterized in that: The turning mechanism (2) comprises a drying barrel (201) and a transfer box (206) mounted on the upper surface of the support platform (1), and one end of the drying barrel (201) is connected to the transfer box (206), the electric heat pump (4) is connected to the drying barrel (201), the drying barrel (201) is internally rotatably connected to a turning shaft (202), the surface of the turning shaft (202) is mounted with spiral blades (203), and a feed hopper (204) is mounted on the upper surface of the drying barrel (201), and a protective door (205) is provided on the feed hopper (204).

3. The large-scale longan self-circulation heating and drying machine according to claim 2 is characterized in that: The driving mechanism (3) comprises a first mounting plate (301) mounted on the upper surface of the support platform (1) and located on one side of the transfer box (206); a servo motor (302) is mounted on the surface of the first mounting plate (301); pulleys (303) are mounted on the surface of the output shaft of the servo motor (302) and the surface of the flip shaft (202); the two pulleys (303) are rotatably connected via a transmission belt (304).

4. The large-scale longan self-circulation heating drying machine according to claim 2 is characterized in that: The air circulation mechanism (5) comprises a collection box (504) mounted on the surface of the support platform (1) and a blower (501) arranged on one side of the transfer box (206); an air inlet end of the blower (501) is connected to the transfer box (206) via a first air guide pipe (502); a filter box (505) is mounted on the top of the collection box (504), and the filter box (505) is connected to the electric heat pump (4); an air outlet end of the blower (501) is connected to the filter box (505) via a second air guide pipe (503); a filter plate (506) is provided on the surface of the filter box (505).

5. The large-scale self-circulating heating and drying machine for longan according to claim 4 is characterized in that: A material removal plate (507) is slidably connected to the surface of the collection box (504), and a moving handle (508) is installed on the material removal plate (507).

6. The large-scale self-circulating heating and drying machine for longan according to claim 2 is characterized in that: The screening mechanism (7) comprises a screening box (701) installed on the inner side of a supporting leg (6); a top cover (702) is installed on the upper surface of the screening box (701); a screening net (703) is installed inside the screening box (701); a connecting hopper (704) and an exhaust valve (705) are installed on the surface of the top cover (702); the connecting hopper (704) is connected to the bottom of a transfer box (206); a first lower hopper (707) and a second lower hopper (708) are installed on one side of the screening box (701); the second lower hopper (708) is located below the screening net (703); and a vibration motor (706) is provided at the bottom of the screening box (701).

7. The large-scale self-circulating heating and drying machine for longan according to claim 6 is characterized in that: A plurality of mounting seats (709) are installed on both sides of the screening box (701), a spring telescopic rod (710) is installed at the bottom of the mounting seat (709), and the spring telescopic rod (710) is installed on the surface of the supporting leg (6).

Images