Circulating grain water molecule evaporation device based on air source heat pump

Abstract

The invention relates to the field of drying, in particular to a circulating type grain water molecule evaporation device based on an air source heat pump. According to an existing grain water molecule evaporation device, grain accumulation easily causes unsmooth hot air circulation, and the drying efficiency is reduced; during heating, many devices only convey hot air and lack a reasonable hot air utilization and water vapor discharge mechanism, so that water molecules in grains are evaporated slowly, and the drying effect is not ideal. The invention discloses a circulating grain water molecule evaporation device based on an air source heat pump. The circulating grain water molecule evaporation device comprises a base, the outer side of the upper portion of the evaporation cylinder is fixedly connected with a feeding hopper. And hot air enters the moisture extraction cover and then is sucked away by the air suction ring pipe and the exhaust pipe, so that grain drying treatment is achieved, in addition, the air suction ring pipe can further penetrate into a grain pile between the evaporation cage and the moisture extraction cover through the rotating ring, the bent pipe, the fixed pipe and the tooth rake rod, moisture in the grain pile is extracted, and the drying effect is enhanced.

Description

Technical Field

[0001] The invention relates to the field of drying, and in particular to a circulating grain water molecule evaporation device based on an air source heat pump. Background Art

[0002] In the long chain of the grain industry, the drying process has always occupied a pivotal position. With the acceleration of agricultural modernization, the demand for large-scale production and centralized storage of grain is increasing, and the desire for efficient and high-quality drying technology is becoming more urgent.

[0003] At present, some drying devices can rarely ensure that the grain is well spread during the drying process. The accumulation of grain can easily cause poor heat circulation and reduce drying efficiency. Many devices simply transport hot air during heating and lack a reasonable hot air utilization and water vapor discharge mechanism, which leads to slow evaporation of water molecules inside the grain and unsatisfactory drying effect. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings, the present invention provides a circulating grain water molecule evaporation device based on an air source heat pump, which can allow hot air to fully contact with grain and improve drying efficiency, while also being able to stir and shake the grain and accelerate the extraction of moisture inside the grain, thereby further improving grain drying efficiency.

[0005] The technical solution is: a circulating grain water molecule evaporation device based on an air source heat pump, including a base, an evaporation cylinder is fixedly connected to the base, a feed hopper is fixedly connected to one side of the evaporation cylinder, a feed trough is opened on the upper part of the evaporation cylinder, a feed trough is opened on the lower part of the evaporation cylinder, a rotating lifting component is provided on the base, an evaporation component is provided on the rotating lifting component, and a closing component is provided on the upper part of the evaporation cylinder.

[0006] Furthermore, the rotary lifting assembly includes a servo motor, a fixed screw is fixedly connected to the output shaft of the servo motor, an octagonal nut is threadedly connected to the middle of the fixed screw, a fixed kit is fixedly connected to the outside of the octagonal nut, a fixed guide rod is fixedly connected to the bottom of the fixed kit, and a transmission ring is sleeved on the outside of the fixed kit.

[0007] Furthermore, the evaporation component includes an evaporation cage, which is rotatably connected to the transmission ring, a hot air space is formed inside the evaporation cage, a plurality of through holes are opened on the evaporation cage, a hot air pipe is fixedly connected to the bottom of the evaporation cage, the hot air pipe is communicated with the bottom of the evaporation cage, a support ring is rotatably connected to the transmission ring, a moisture extraction hood is fixedly connected to the outside of the support ring, a moisture extraction space is formed inside the moisture extraction hood, a plurality of extraction holes are opened at the bottom of the moisture extraction hood, an inclined ring is fixedly connected to the inner side of the moisture extraction hood, a sandwich is formed between the moisture extraction hood, the inclined ring and the evaporation cylinder, and the moisture extraction An intake ring pipe is fixedly connected to the upper part of the hood, the intake ring pipe is connected to the moisture extraction hood, an exhaust pipe is fixedly connected to the intake ring pipe, the exhaust pipe passes through the inclined ring and the evaporating cylinder, a fixed pipe is fixedly connected to the middle part of the transmission ring, a tooth rake rod is fixedly connected to the fixed pipe, the interior of the tooth rake rod is a cavity, a number of hollow holes are opened on both sides of the middle part of the tooth rake rod, the aperture of the hollow holes on the tooth rake rod is smaller than the grain particle size, a rotating ring is slidably connected to the side of the moisture extraction hood close to the transmission ring, a bending pipe is fixedly connected between the fixed pipe and the rotating ring, and both ends of the bending pipe are respectively connected to the fixed pipe and the rotating ring.

[0008] Furthermore, the diameters of the plurality of through holes on the evaporation cage are all smaller than the grain particle diameter.

[0009] Furthermore, the plurality of extraction holes opened at the lower part of the moisture extraction hood are all smaller than the grain particle size.

[0010] Furthermore, the closing assembly includes a vertical rod, four vertical rods are fixedly connected to the outside of the inclined ring, four fixed columns are fixedly connected to one side of the evaporator tube, a closed ring is supported between the four fixed columns, the closed ring is fitted with the evaporator tube, and an extrusion spring is connected between the closed ring and the inner side of the top of the evaporator tube.

[0011] Furthermore, it also includes a stirring assembly, which is arranged on the transmission ring and is used to stir the grain on the evaporation cage. The stirring assembly includes a fixed plate, fixed plates are fixedly connected to both sides of the upper part of the transmission ring, an inner gear ring is fixedly connected between the two fixed plates, a rotating shaft is rotatably connected to the fixed kit, a pinion is fixedly connected to the upper part of the rotating shaft, the inner gear ring meshes with the pinion, four support rods are fixedly connected to the fixed kit, two limiting rings are fixedly connected between the four support rods, a fan-shaped gear ring is rotatably connected between the two limiting rings, and the outer tooth block of the fan-shaped gear meshes with the pinion.

[0012] Furthermore, it also includes a shaking component, which is arranged on a fixed plate, a ramp block is fixedly connected to the lower part of the rotating shaft, a fixing ring is also fixedly connected between the two fixing plates, and a plurality of circular columns are fixedly connected to the inner side of the fixing ring.

[0013] Beneficial effects of the present invention: 1. The thin layer of accommodation space constructed by the evaporation cage and the moisture extraction hood allows the grain to be spread out in an orderly manner, so that the subsequent influx of hot air can more smoothly and efficiently contact the grain, greatly improving the drying efficiency.

[0014] 2. Hot air continues to enter the evaporation cage, and heats the grain through the many through holes on the evaporation cage, so that the temperature of the grain gradually rises. In this process, the water molecules inside the grain continue to evaporate, forming hot air with water vapor. These hot air then enters the moisture extraction hood, and is subsequently sucked away by the air suction ring pipe and the exhaust pipe, thereby achieving the drying process of the grain. Not only that, the air suction ring pipe will also penetrate into the grain pile between the evaporation cage and the moisture extraction hood through the rotating ring, bending pipe, fixed pipe and tooth rake rod to extract moisture from it and enhance the drying effect.

[0015] 3. The positive rotation of the two fixed plates drives the transmission ring, fixed tube, rotating ring, bending tube and tooth rake rod to rotate forward together. The tooth rake rod rotates forward to stir the grain between the evaporation cage and the moisture extraction hood. The tooth rake rod is set in an inclined shape, and the tooth rake rod rotates forward to shovel the grain, thereby turning the grain, making the grain heated more evenly and significantly improving the heating effect. Not only that, there are tooth grooves on the tooth rake rod at intervals. During the positive rotation of the tooth rake rod, these tooth grooves will also stagger and stir the grain, thereby further breaking up the grain pile, so that the grain can be fully exposed to the hot air, accelerating the evaporation of internal moisture, and ensuring that the drying process is more efficient and thorough. Combined with the hollow holes on the intake ring tube, exhaust pipe and tooth rake rod, the tooth rake rod can also extract moisture from the grain simultaneously when turning the grain, thereby greatly improving the drying efficiency of the grain.

[0016] 4. The inclined block intermittently drives the evaporation cage, moisture extraction hood, tooth rake rod, and the grain between the evaporation cage and the moisture extraction hood to rise and fall together, so that the grain is fully shaken out, the grain is heated more evenly, and the potential moisture inside is discharged faster, the evaporation efficiency of the water molecules in the grain is significantly improved, and the drying effect is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the base, evaporating cylinder and feed hopper of the present invention.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the base and the feed hopper of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of a partially closed component of the present invention.

[0020] Figure 4 For the present invention Figure 2 Schematic diagram of the enlarged three-dimensional structure of A in the middle.

[0021] Figure 5 For the present invention Figure 3 Schematic diagram of the enlarged three-dimensional structure of B in the figure.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of a part of the evaporation component of the present invention.

[0023] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged three-dimensional structure of C in the middle.

[0024] Figure 8 It is a schematic diagram of the disassembled three-dimensional structure of the fixing kit and the transmission ring of the present invention.

[0025] Fig. 9 It is a schematic diagram of the cross-sectional three-dimensional structure of the octagonal nut, the fixing kit and the transmission ring of the present invention.

[0026] Fig.10 It is a schematic diagram of the cross-sectional three-dimensional structure of the fixed tube and the tooth rake rod of the present invention.

[0027] Fig.11 It is a schematic diagram of the split three-dimensional structure of part of the rotating lifting component and the evaporating component of the present invention.

[0028] Fig.12 It is a schematic diagram of the three-dimensional structure of the stirring component and the shaking component of the present invention.

[0029] Figure numbers: 1_base, 2_evaporation cylinder, 3_feed hopper, 41_servo motor, 42_fixing screw, 43_octagonal nut, 44_fixing kit, 45_fixing guide rod, 46_transmission ring, 51_evaporation cage, 511_hot air pipe, 52_support ring, 521_moisture extraction hood, 53_tilted ring, 531_intake ring pipe, 532_exhaust pipe, 54_fixed pipe, 55_tooth rake rod, 56_rotating ring, 57_bent pipe, 61_vertical rod, 62_fixing column, 63_closing ring, 64_extrusion spring, 71_fixing plate, 72_inner gear ring, 73_rotating shaft, 74_pinion, 75_support rod, 76_limiting ring, 77_fan-shaped gear ring, 81_inclined block, 82_fixing ring, 83_circular column. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] Embodiment 1: A circulating grain water molecule evaporation device based on an air source heat pump, such as Figure 1-Figure 12As shown, it includes a base 1, an evaporating cylinder 2 is welded on the base 1, a feed hopper 3 is welded on the upper part of the evaporating cylinder 2, a feed trough is opened on the upper part of the evaporating cylinder 2, a drop trough is opened on the lower part of the evaporating cylinder 2, a rotating lifting component is provided on the base 1, an evaporating component is provided on the rotating lifting component, and a closing component is provided on the upper part of the evaporating cylinder 2.

[0032] The rotary lifting assembly includes a servo motor 41, a fixed screw 42 is fixedly connected to the output shaft of the servo motor 41, two vertical grooves are opened on the fixed screw 42, an octagonal nut 43 is threadedly connected to the middle of the fixed screw 42, a fixed sleeve 44 is welded to the outside of the octagonal nut 43, a fixed guide rod 45 is fixedly connected to the bottom of the fixed sleeve 44, the two ends of the bottom of the fixed guide rod 45 are respectively slidably connected to two of the protrusions on the inner side of the evaporator tube 2, and a transmission ring 46 is sleeved on the outside of the fixed sleeve 44.

[0033] The evaporation component includes an evaporation cage 51, which is rotatably connected to the transmission ring 46, and a hot air space is formed inside the evaporation cage 51. The evaporation cage 51 is provided with a plurality of through holes, and the outer side of the evaporation cage 51 is slidably connected to the four protrusions inside the evaporation tube 2. A hot air pipe 511 is fixedly connected to the bottom of the evaporation cage 51, and the hot air pipe 511 is communicated with the bottom of the evaporation cage 51. A support ring 52 is rotatably connected to the transmission ring 46, and a moisture extraction hood 521 is fixedly connected to the outer side of the support ring 52, and a moisture extraction space is formed inside the moisture extraction hood 521. A plurality of exhaust holes are provided at the lower part of the moisture extraction hood 521, and an inclined ring 53 is fixedly connected to the inner side of the moisture extraction hood 521. The outer sides of the moisture extraction hood 521 and the inclined ring 53 are both slidably connected to the four protrusions inside the evaporation tube 2, and a sandwich is formed between the moisture extraction hood 521, the inclined ring 53 and the evaporation tube 2. An air intake ring pipe 531 is fixedly connected to the upper part of the moisture extraction hood 521, and the air intake ring pipe 531 is communicated with the moisture extraction hood 521. The air intake ring pipe 531 is located in the interlayer formed between the moisture extraction hood 521, the inclined ring 53 and the evaporation tube 2. An exhaust pipe 532 is fixedly connected to the air intake ring pipe 531, and the exhaust pipe 532 passes through the inclined ring 53 and the evaporation tube 2. A fixed pipe 54 is fixedly connected to the middle part of the transmission ring 46, and a tooth rake rod 55 is fixedly connected to the fixed pipe 54. The interior of the tooth rake rod 55 is a cavity, and a plurality of hollow holes are opened on both sides of the middle part of the tooth rake rod 55. The aperture of the hollow holes on the tooth rake rod 55 is smaller than the grain particle size. A rotating ring 56 is slidably connected to the side of the moisture extraction hood 521 close to the transmission ring 46, and a bending pipe 57 is fixedly connected between the fixed pipe 54 and the rotating ring 56. The two ends of the bending pipe 57 are respectively communicated with the fixed pipe 54 and the rotating ring 56.

[0034] The apertures of the plurality of through holes on the evaporation cage 51 are all smaller than the grain diameter.

[0035] The plurality of extraction holes opened at the lower part of the moisture extraction cover 521 are all smaller than the grain diameter.

[0036] The closing assembly includes a vertical rod 61, four vertical rods 61 are fixedly connected to the outside of the inclined ring 53, four fixed columns 62 are fixedly connected to the inner side of the upper part of the evaporator tube 2, a closed ring 63 is supported between the four fixed columns 62, the closed ring 63 is in contact with the evaporator tube 2, and an extrusion spring 64 is connected between the closed ring 63 and the inner side of the top of the evaporator tube 2.

[0037] At first, under the action of the extrusion spring 64 and the fixed column 62, the closed ring 63 blocks the feed slot on the upper part of the evaporating cylinder 2. When the grain needs to be evaporated and dried, the staff directs the hot air generated by the air source heat pump into the hot air pipe 511, and at the same time starts the external device to intermittently pour the grain into the feed hopper 3, starts the servo motor 41, and the output shaft of the servo motor 41 rotates forward to drive the fixed screw 42 to rotate forward. Due to the guiding effect of the four protrusions on the inner side of the evaporating cylinder 2 on the octagonal nut 43, the fixed kit 44 and the fixed guide rod 45, the fixed screw 42 rotates forward to make the octagonal nut 43, the fixed kit 44 and the fixed guide rod 45 move upward along the four protrusions on the inner side of the evaporating cylinder 2, and the fixed kit 44 drives the support ring 52, the tilting ring 53 and the moisture extraction hood 521, the evaporation cage 51 and the fixed pipe 54 move upward together, the inclined ring 53 moves upward, driving the four vertical rods 61 to move upward together, the moisture extraction hood 521 and the inclined ring 53 move upward, driving the suction ring pipe 531 and the exhaust pipe 532 to move upward together, the exhaust pipe 532 moves upward along the top of the evaporation tube 2, the four vertical rods 61 move upward to push the closed ring 63, the closed ring 63 moves upward and disengages from the four fixed columns 62, the closed ring 63 moves upward to squeeze the extrusion spring 64, the closed ring 63 no longer blocks the feed slot at the top of the evaporation tube 2, the grain on the feed hopper 3 falls along the feed slot on the evaporation tube 2 onto the inclined ring 53, and then slides along the inclined surface of the inclined ring 53 to the evaporation cage 51 and the moisture extraction hood 521. The accommodating space formed by the evaporation cage 51 and the moisture extraction hood 521 is used to form a thin layer of accommodating space, so that the grains are spread out in an orderly manner, so that the hot air that flows in later can contact the grains more smoothly and efficiently, greatly improving the drying efficiency. Then the staff starts the servo motor 41 to reverse, and the servo motor 41 reverses to drive the fixed screw 42 to reverse, and the fixed screw 42 reverses to drive the octagonal nut 43, the fixed kit 44 and the fixed guide rod 45 to reset, and the fixed kit 44 drives the support ring 52, the tilting ring 53, the moisture extraction hood 521, the evaporation cage 51 and the fixed tube 54 to reset together, and the tilting ring 53 resets and drives the four vertical rods 61 to reset, and the four vertical rods 61 no longer squeeze the closing ring 63 and the squeezing spring 64, and the squeezing spring 65 The reset drives the closed ring 63 to contact the four fixed columns 62 again, and the closed ring 63 blocks the feed slot on the upper part of the evaporation cylinder 2 again. During the reset process, hot air continues to enter the evaporation cage 51, and heats the grain through the many through holes on the evaporation cage 51, so that the grain temperature gradually rises. In this process, the water molecules inside the grain are continuously evaporated to form hot air with water vapor, which then enters the moisture extraction hood 521 and is subsequently sucked away by the air suction ring 531 and the exhaust pipe 532, thereby achieving the drying process of the grain. In addition, the air suction ring 531 will also penetrate into the grain pile between the evaporation cage 51 and the moisture extraction hood 521 through the rotating ring 56, the bending pipe 57, the fixed pipe 54 and the tooth rake rod 55 to extract the moisture therein and enhance the drying effect.

[0038] Embodiment 2: Based on embodiment 1, Figure 5 , Figure 7 , Fig.10 and Fig.11 As shown, it also includes a stirring component, which is arranged on the transmission ring 46 and is used to stir the grain on the evaporation cage 51. The stirring component includes a fixed plate 71, and the fixed plates 71 are fixedly connected to both sides of the upper part of the transmission ring 46, and an inner gear ring 72 is fixedly connected between the two fixed plates 71. A rotating shaft 73 is rotatably connected to the fixed kit 44, and a pinion 74 is fixedly connected to the upper part of the rotating shaft 73. The inner gear ring 72 meshes with the pinion 74, and four support rods 75 are fixedly connected to the fixed kit 44. Two limiting rings 76 are fixedly connected between the four support rods 75, and a fan-shaped gear ring 77 is rotatably connected between the two limiting rings 76. The outer tooth block of the fan-shaped gear meshes with the pinion 74, and the inner side of the fan-shaped gear is stuck in the two vertical grooves on the fixing screw 42.

[0039] The fixed screw 42 reverses and drives the sector gear ring 77 to reverse through the two vertical grooves on the fixed screw 42. The sector gear ring 77 reverses and drives the pinion 74 and the rotating shaft 73 to rotate forwardly through the tooth blocks on the outer side of the sector gear ring 77. The pinion 74 rotates forwardly and drives the inner gear ring 72 and the two fixed plates 71 to rotate forwardly. The two fixed plates 71 rotate forwardly and drive the transmission ring 46, the fixed tube 54, the rotating ring 56, the bending tube 57 and the tooth rake rod 55 to rotate forwardly together. The tooth rake rod 55 rotates forwardly to stir the grain between the evaporation cage 51 and the moisture extraction hood 521. The tooth rake rod 55 is arranged in an inclined shape. The tooth rake rod 55 rotates forwardly to shovel the grain, thereby turning the grain up, making the grain heated more evenly and significantly improving the heating effect. In addition, the tooth grooves are arranged at intervals on the tooth rake rod 55. During the forward rotation of the tooth rake rod 55, Some tooth grooves will also stagger and stir the grains, thereby further breaking up the grain pile so that the grains can be fully exposed to the hot air, accelerating the evaporation of internal moisture, and ensuring that the drying process is more efficient and thorough. In combination with the hollow holes on the air intake ring 531, the exhaust pipe 532 and the tooth rake rod 55, the tooth rake rod 55 can also simultaneously extract moisture from the grains when turning the grains, thereby greatly improving the drying efficiency of the grains. When the fixed screw 42 rotates forward, the fixed screw 42 drives the fan-shaped tooth ring 77 to rotate forward, and the fan-shaped tooth ring 77 rotates forward to drive the pinion 74 and the rotating shaft 73 to reverse, and the pinion 74 reverses to drive the inner tooth ring 72, the two fixed plates 71 and the transmission ring 46 to reverse, and the transmission ring 46 reverses to drive the fixed pipe 54 and the tooth rake rod 55 to reverse, and when the servo motor 41 stops rotating, the transmission ring 46 and the tooth rake rod 55 also stop rotating.

[0040] Embodiment 3: Based on embodiment 2, Fig.12As shown, a shaking assembly is also included, which is arranged on the fixed plate 71. A bevel block 81 is fixedly connected to the lower part of the rotating shaft 73. The edge of the bevel block 81 is beveled. A fixing ring 82 is also fixedly connected between the two fixed plates 71. A plurality of circular columns 83 are fixedly connected to the inner side of the fixing ring 82.

[0041] The forward rotation of the rotating shaft 73 drives the inclined surface block 81 to rotate forward. The forward rotation of the inclined surface block 81 pushes one of the circular columns 83 to lift upward through the inclined surface of the inclined surface block 81. The lifting of one of the circular columns 83 drives the fixing ring 82 and the two fixing plates 71 to lift together. The lifting of the two fixing plates 71 drives the transmission ring 46 to lift up. The lifting of the transmission ring 46 drives the evaporation cage 51, the support ring 52, the moisture extraction cover 521, the tilting ring 53, the fixing pipe 54 and the tooth rake rod 55 to lift up together. The inclined surface block 81 continues to rotate forward and no longer squeezes one of the circular columns 83 to lift it up. Under the action of gravity, the two fixed plates 71 and the transmission ring 46 are reset downward, and the evaporation cage 51, the moisture extraction hood 521, the tooth rake rod 55 and the grain between the evaporation cage 51 and the moisture extraction hood 521 are intermittently driven to rise and fall together through the inclined plane block 81, so that the grain is fully shaken out, the grain is heated more evenly, and the potential moisture inside is also accelerated to be discharged, the evaporation efficiency of the water molecules in the grain is significantly improved, the drying effect is further improved, the servo motor 41 stops rotating, and the inclined plane block 81 no longer pushes the circular column 83 to lift up.

[0042] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A circulating grain water molecule evaporation device based on an air source heat pump, characterized in that: The invention comprises a base (1), an evaporating cylinder (2) is fixedly connected to the base (1), a feeding hopper (3) is fixedly connected to one side of the evaporating cylinder (2), a feeding groove is provided at the top of the evaporating cylinder (2), a material discharge groove is provided at the bottom of the evaporating cylinder (2), a rotating lifting component is provided on the base (1), an evaporating component is provided on the rotating lifting component, and a closing component is provided at the top of the evaporating cylinder (2).

2. The circulating grain water molecule evaporation device based on air source heat pump according to claim 1 is characterized in that: The rotary lifting assembly comprises a servo motor (41), a fixed screw rod (42) is fixedly connected to the output shaft of the servo motor (41), an octagonal nut (43) is threadedly connected to the middle of the fixed screw rod (42), a fixed sleeve (44) is fixedly connected to the outside of the octagonal nut (43), a fixed guide rod (45) is fixedly connected to the bottom of the fixed sleeve (44), and a transmission ring (46) is sleeved on the outside of the fixed sleeve (44).

3. The circulating grain water molecule evaporation device based on air source heat pump according to claim 2 is characterized in that: The evaporation assembly comprises an evaporation cage (51), the evaporation cage (51) is rotatably connected to a transmission ring (46), a hot air space is formed inside the evaporation cage (51), a plurality of through holes are formed on the evaporation cage (51), a hot air pipe (511) is fixedly connected to the bottom of the evaporation cage (51), and the hot air pipe (511) is communicated with the bottom of the evaporation cage (51), a support ring (52) is rotatably connected to the transmission ring (46), a moisture extraction hood (521) is fixedly connected to the outside of the support ring (52), a moisture extraction space is formed inside the moisture extraction hood (521), a plurality of extraction holes are formed at the bottom of the moisture extraction hood (521), a tilting ring (53) is fixedly connected to the inside of the moisture extraction hood (521), a sandwich is formed between the moisture extraction hood (521), the tilting ring (53) and the evaporation cylinder (2), and the upper part of the moisture extraction hood (521) is fixedly connected to An air intake ring pipe (531) is connected to the moisture extraction hood (521). An exhaust pipe (532) is fixedly connected to the air intake ring pipe (531). The exhaust pipe (532) passes through the inclined ring (53) and the evaporation cylinder (2). A fixed pipe (54) is fixedly connected to the middle of the transmission ring (46). A tooth rake rod (55) is fixedly connected to the fixed pipe (54). The interior of the tooth rake rod (55) is a cavity. A plurality of hollow holes are formed on both sides of the middle of the tooth rake rod (55). The diameter of the hollow holes on the tooth rake rod (55) is smaller than the grain diameter. A rotating ring (56) is slidably connected to a side of the moisture extraction hood (521) close to the transmission ring (46). A bent pipe (57) is fixedly connected between the fixed pipe (54) and the rotating ring (56). Two ends of the bent pipe (57) are respectively connected to the fixed pipe (54) and the rotating ring (56).

4. The circulating grain water molecule evaporation device based on air source heat pump according to claim 3 is characterized in that: The diameters of the plurality of through holes on the evaporation cage (51) are all smaller than the grain particle diameter.

5. The circulating grain water molecule evaporation device based on air source heat pump according to claim 3 is characterized in that: The plurality of air extraction holes opened at the lower portion of the moisture extraction hood (521) are all smaller than the grain diameter.

6. The circulating grain water molecule evaporation device based on air source heat pump according to claim 3 is characterized in that: The closing component comprises a vertical rod (61), four vertical rods (61) are fixedly connected to the outside of the tilting ring (53), four fixing columns (62) are fixedly connected to one side of the evaporating tube (2), a closing ring (63) is supported between the four fixing columns (62), the closing ring (63) is fitted with the evaporating tube (2), and a pressing spring (64) is connected between the closing ring (63) and the inner side of the top of the evaporating tube (2).

7. The circulating grain water molecule evaporation device based on air source heat pump according to claim 6 is characterized in that: The stirring assembly is also included. The stirring assembly is arranged on the transmission ring (46) and is used to stir the grain on the evaporation cage (51). The stirring assembly includes a fixed plate (71). The fixed plates (71) are fixedly connected to both sides of the upper part of the transmission ring (46). An inner gear ring (72) is fixedly connected between the two fixed plates (71). A rotating shaft (73) is rotatably connected to the fixed sleeve (44). A pinion (74) is fixedly connected to the upper part of the rotating shaft (73). The inner gear ring (72) meshes with the pinion (74). Four support rods (75) are fixedly connected to the fixed sleeve (44). Two limiting rings (76) are fixedly connected between the four support rods (75). A fan-shaped gear ring (77) is rotatably connected between the two limiting rings (76). The outer tooth block of the fan-shaped gear meshes with the pinion (74).

8. The circulating grain water molecule evaporation device based on air source heat pump according to claim 7 is characterized in that: It also includes a shaking assembly, which is arranged on a fixed plate (71). The lower part of the rotating shaft (73) is fixedly connected to an inclined surface block (81). A fixing ring (82) is also fixedly connected between the two fixing plates (71). A plurality of circular columns (83) are fixedly connected to the inner side of the fixing ring (82).

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