Continuous drying device for rice processing

Abstract

The utility model relates to the field of rice processing, in particular to a continuous drying device for rice processing, which comprises a drying bin, a drying cylinder, a transmission device and a hot air device, a cavity is formed in the drying bin; the drying bin is provided with a feeding pipe; the feeding pipe is communicated with one end of the drying cylinder; the drying bin is provided with a discharging pipe; the discharging pipe is communicated with the other end of the drying cylinder; the drying cylinder is arranged in the cavity; vent holes are formed in the drying cylinder; the transmission device comprises a transmission shaft, a spiral transmission belt and a shifting plate; the transmission shaft is rotatably arranged in the drying cylinder; the spiral conveyor belt is fixedly connected with the transmission shaft; the material stirring plate is arranged at a gap where the spiral transmission belt is connected with the transmission shaft; the shifting plate is fixedly connected with the transmission shaft; the hot air device is communicated with the cavity so as to output dry hot air into the cavity. When the rice is continuously dried, the rice can be uniformly heated, the drying effect is enhanced, the quality of the rice is improved, meanwhile, the drying speed is increased, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of rice processing, in particular to a continuous drying device for rice processing. Background Art

[0002] Rice is a finished product made from rice grains after cleaning, husking, milling, and finishing. It is rich in nutrients and is the main source of food for people. In the rice processing process, drying is an essential process because rice has a high water content. If it is not dried before storage, it will easily become moldy after long-term storage, affecting food safety.

[0003] A Chinese patent discloses a continuous drying device for rice processing, [Application No.:

[0004] CN201822251533.3, Publication No.: CN209415990U] includes a support plate, a drying box is fixedly installed on the top of the support plate, a main shaft is rotatably installed on the drying box, a spiral conveyor belt located in the drying box is installed on the outer wall of the main shaft, a motor is fixedly installed on the outer wall of one side of the drying box, one end of the main shaft extends to the outside of the drying box and is fixedly connected to the output shaft of the motor, one end of a discharge pipe is fixedly connected to the bottom of the drying box, the bottom end of the discharge pipe extends to the bottom of the support plate, and a mounting shell is fixedly installed on the top of the drying box.

[0005] Although the utility model can achieve a continuous drying effect for rice, the rice is granular. During the drying process, the rice will settle at the bottom of the drying box. The threaded transmission belt can only push the rice at a uniform speed. Only the rice on the surface can be dried, while the rice in the inner layer cannot be fully contacted with the hot air and is not easily dried, resulting in uneven heating of the rice and affecting the drying effect. Utility Model Content

[0006] In view of the technical problems of the prior art, the utility model provides a continuous drying device for rice processing.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] A continuous drying device for rice processing, characterized in that it comprises: a drying bin, a drying cylinder, a transmission device, and a hot air device; a cavity is provided in the drying bin; a feeding pipe is provided in the drying bin; the feeding pipe is communicated with one end of the drying cylinder; a discharging pipe is provided in the drying bin; the discharging pipe is communicated with the other end of the drying cylinder; the drying cylinder is provided in the cavity; the drying cylinder is provided with an air vent; the transmission device comprises: a transmission shaft, a spiral blade, and a material stripping plate; the transmission shaft is rotatably provided in the drying cylinder; the spiral blade is fixedly connected to the transmission shaft; the material stripping plate is provided at the interval where the spiral blade is connected to the transmission shaft; the material stripping plate is fixedly connected to the transmission shaft; the hot air device is communicated with the cavity to output dry hot air into the cavity.

[0009] First, the hot air device outputs dry hot air into the cavity of the drying bin, and the rice to be dried is introduced into the drying cylinder from the feed pipe. The transmission shaft in the transmission device drives the threaded blades to rotate in the drying cylinder to push the rice to move horizontally from one end of the drying cylinder to the other end, and is discharged through the discharge pipe. During the movement, the dry hot air contacts the rice through the ventilation holes, removes the moisture of the rice, and dries the rice to achieve a continuous drying effect; at the same time, during the movement, the material plate turns the rice over to achieve a stirring effect, so that the rice can fully contact with the hot air during the movement; compared with the prior art, the drying speed is accelerated, the work efficiency is improved, and the rice can be heated evenly, the drying effect is enhanced, and the quality of the rice is improved.

[0010] Furthermore, the drying bin is provided with a feeding device; the feeding device comprises: a feeding trough, a stirring shaft, and a first motor; the feeding trough is connected to an end of the feeding pipe away from the drying bin; the stirring shaft is rotatably arranged in the feeding trough; a stirring blade is arranged on the stirring shaft; the stirring blade is fixedly connected to the stirring shaft; the output shaft of the first motor is transmission-connected to the stirring shaft; the housing of the first motor is fixedly connected to the feeding trough.

[0011] Furthermore, the drying chamber is provided with a blower; one end of the blower is connected to the cavity; an exhaust hood is provided at the other end of the blower; the exhaust hood is connected to the blower; a baffle is provided at one end of the exhaust hood away from the blower; the baffle is rotatably connected to the exhaust hood.

[0012] Furthermore, an inner cylinder is provided in the drying bin; and an interlayer is provided between the inner cylinder and the drying bin.

[0013] Furthermore, the drying cylinder is provided with a support frame; one end of the support frame is connected to the drying cylinder, and the other end of the support frame is connected to the drying bin.

[0014] Furthermore, the transmission device also includes: a second motor; an output shaft of the second motor is transmission-connected to the transmission shaft; and a housing of the second motor is fixedly connected to the drying bin.

[0015] Furthermore, the hot air device includes: a hot air blower and a hot air pipe; the hot air blower is used to output dry hot air; one end of the hot air pipe is connected to the hot air blower, and the other end is connected to the cavity.

[0016] Furthermore, the hot air pipe includes: an annular pipe and a duct; the annular pipe is sleeved outside the drying chamber; the annular pipe is evenly distributed along the axial direction of the drying chamber; the annular pipe is provided with an air outlet; the air outlet is connected to the cavity; the air outlet is evenly distributed along the circumferential direction of the annular pipe; one end of the duct is connected to the annular pipe, and the other end is connected to the hot air blower.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] During the drying process, the rice is continuously stirred by the prying plate on the transmission shaft, and the inner layer of rice is turned out. The rice can fully contact with the hot air during the movement, so that the rice can be heated evenly, which enhances the drying effect, improves the quality of the rice, and at the same time speeds up the drying speed and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 : Overall structure stereogram

[0020] Figure 2 :Cross-section view of drying chamber

[0021] Figure 3 : Partial enlarged view of the drying chamber

[0022] Figure 4 :Cross-section view of drying cylinder

[0023] In the figure: 1. drying chamber; 11. feeding pipe; 12. discharging pipe; 13. feeding device; 131. feeding trough; 132. stirring shaft; 1321. stirring blade; 133. first motor; 14. blower; 15. exhaust hood; 151. baffle; 16. inner cylinder; 2. drying cylinder; 21. vent; 22. supporting frame; 3. transmission device; 31. transmission shaft; 32. spiral blade; 33. material stripping plate; 34. second motor; 4. hot air device; 41. hot air blower; 42. hot air pipe; 421. annular pipe; 4211. air outlet; 422. duct. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0025] In order to solve the above technical problems, the present application provides a continuous drying device for rice processing, comprising: a drying bin 1, a drying cylinder 2, a transmission device 3, and a hot air device 4; a cavity is opened in the drying bin 1; an inner cylinder 16 is arranged in the drying bin 1, and an interlayer is arranged between the inner cylinder 16 and the drying bin 1; the drying cylinder 2 is arranged in the cavity; the drying bin 1 is provided with a feeding pipe 11, the feeding pipe 11 is connected to one end of the drying cylinder 2, the drying bin 1 is provided with a discharging pipe 12, and the discharging pipe 12 is connected to the other end of the drying cylinder 2; the drying bin 1 is provided with a feeding device 13, the feeding device 13 comprises: a feeding trough 131, a stirring shaft 132, and a first motor 133; the feeding trough 131 is connected to the end of the feeding pipe 11 away from the drying bin 1, and the stirring shaft 132 is rotatably arranged in the feed trough 131, and the stirring shaft 132 is provided with a stirring blade 1321; the stirring blade 1321 is fixedly connected to the stirring shaft 132, and the stirring blade 1321 is evenly distributed along the axial direction of the stirring shaft 132; the output shaft of the first motor 133 is transmission-connected to the stirring shaft 132, and the shell of the first motor 133 is fixedly connected to the feed trough 131; the drying bin 1 is provided with a blower 14, one end of the blower 14 is connected to the cavity, and the other end of the blower 14 is provided with an exhaust hood 15; the exhaust hood 15 is connected to the blower 14, and the end of the exhaust hood 15 away from the blower 14 is provided with a baffle 151, and the baffle 151 is rotatably connected to the exhaust hood 15; the baffle 151 is arranged along the exhaust hood 15 The ports are evenly distributed; the drying cylinder 2 is provided with a support frame 22, one end of the support frame 22 is connected to the drying cylinder 2, and the other end is connected to the drying chamber 1; the drying cylinder 2 is provided with ventilation holes 21, the aperture of the ventilation holes 21 is smaller than the size of rice, and the ventilation holes 21 are evenly distributed around the drying cylinder 2; the transmission device 3 includes: a transmission shaft 31, a spiral blade 32, a material stripping plate 33, and a second motor 34; the transmission shaft 31 is rotatably arranged in the drying cylinder 2, the spiral blade 32 is fixedly connected to the transmission shaft 31, the material stripping plate 33 is arranged at the interval where the spiral blade 32 is connected to the transmission shaft 31, and the material stripping plate 33 is fixedly connected to the transmission shaft 31; the output shaft of the second motor 34 is transmission-connected to the transmission shaft 31; the housing of the second motor 34 is fixedly connected connected to the drying bin 1; the hot air device 4 is connected to the cavity to output dry hot air into the cavity; the hot air device 4 includes: a hot air blower 41 and a hot air pipe 42; the hot air blower 41 is used to output dry hot air, one end of the hot air pipe 42 is connected to the hot air blower 41, and the other end is connected to the cavity; the hot air pipe 42 includes: an annular tube 421 and a conduit 422; the annular tube 421 is sleeved outside the drying bin 1, the annular tube 421 is evenly distributed along the axial direction of the drying bin 1, the annular tube 421 is provided with an air outlet 4211, the air outlet 4211 is connected to the cavity, and the air outlet 4211 is evenly distributed along the circumferential direction of the annular tube 421, one end of the conduit 422 is connected to the annular tube 421, and the other end is connected to the hot air blower 41.

[0026] See also Figures 1 to 4In the specific implementation stage, the hot air blower 41 in the hot air device 4 conveys the dry hot air to the cavity of the drying bin 1 through the hot air pipe 42, the rice is introduced into the feed pipe 11 by the feed device 13, and finally enters the drying cylinder 2, the second motor 34 in the transmission device 3 drives the spiral blade 32 to rotate through the transmission shaft 31, the spiral blade 32 pushes the rice to move horizontally from one end to the other end of the drying cylinder 2, and is discharged through the discharge pipe 12, during the movement, the dry hot air will contact the rice through the vent 21, absorb the moisture of the rice, and dry the rice to achieve a continuous drying effect; at the same time, during the movement, the material paddle 33 will continuously turn the rice over to achieve a stirring effect, so that the rice can be fully in contact with the hot air during the movement; compared with the prior art, the drying speed is accelerated, the work efficiency is improved, and the rice can be evenly heated, the drying effect is enhanced, and the quality of the rice is improved.

[0027] In the feeding device 13, the rice enters the feeding pipe 11 from the feeding trough 131, and the first motor 133 drives the stirring blade 1321 through the stirring shaft 132 to stir the rice in the feeding trough 131, so that the rice is smoothly introduced into the feeding pipe 11, avoiding the phenomenon of rice being blocked during feeding, and also allowing the rice to quickly enter the drying cylinder 2, thereby improving the drying efficiency.

[0028] The support frame 22 fixes the drying cylinder 2 in the cavity, and sufficient space is maintained between the drying cylinder 2 and the inner wall of the cavity to avoid direct contact with the inner wall of the cavity. This allows sufficient dry hot air to be available around the drying cylinder 2 and contact the rice through the vents 21, so that the rice in the drying cylinder 2 can be fully dried, further enhancing the drying effect.

[0029] In the hot air device 4, first, the hot air blower 41 passes the dry hot air into the duct 422 of the hot air pipe 42, and then the duct 422 distributes the dry hot air to the annular tube 421 evenly distributed along the axial direction of the drying chamber 1, and finally the annular tube 421 passes the dry hot air into the cavity through the air outlet 4211 evenly distributed along the circumferential direction of the annular tube 421, so that there is the same flow of dry hot air around the drying cylinder 2 to dry the rice in the drying cylinder 2, the rice is heated more evenly during drying, and the quality of the rice is further ensured.

[0030] The blower 14 extracts the hot air that has absorbed the moisture of the rice from the cavity and discharges it to the outside through the exhaust hood 15 to reduce the humidity of the air in the cavity, so that the cavity maintains a dry working environment to ensure the drying effect of the rice. When the blower 14 is working, the airflow generated will blow the baffle 151 away from the port of the exhaust hood 15, so that the hot air in the cavity can be smoothly discharged from the exhaust hood 15 with moisture; when the blower 14 is not working, the baffle 151 will block the exhaust hood 15, forming a blocking effect at the port of the exhaust hood 15, preventing dust, debris, and insects from entering the cavity through the exhaust hood 15, so that the cavity can maintain a clean environment for a long time, and prevent the rice from being contaminated during drying.

[0031] When the dry hot air in the cavity dries the rice, the interlayer between the inner cylinder 16 and the drying chamber 1 will have an insulation effect on the cavity, preventing heat from being directly transferred to the outside through the inner wall of the cavity, thereby slowing down heat loss, reducing energy loss and saving costs.

[0032] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A continuous drying device for rice processing, characterized in that: include: Drying chamber (1), drying cylinder (2), transmission device (3), hot air device (4); The drying chamber (1) has a cavity therein; The drying bin (1) is provided with a feeding pipe (11); The feed pipe (11) is connected to one end of the drying cylinder (2); The drying bin (1) is provided with a discharge pipe (12): The discharge pipe (12) is connected to the other end of the drying cylinder (2); The drying cylinder (2) is arranged in the cavity; The drying cylinder (2) is provided with a vent hole (21); The transmission device (3) comprises: a transmission shaft (31), a spiral blade (32), and a material-shifting plate (33); The transmission shaft (31) is rotatably disposed in the drying cylinder (2); The spiral blade (32) is fixedly connected to the transmission shaft (31); The material-shifting plate (33) is arranged at the interval where the spiral blade (32) and the transmission shaft (31) are connected; The material-shifting plate (33) is fixedly connected to the transmission shaft (31); The hot air device (4) is communicated with the cavity to output dry hot air into the cavity.

2. A continuous drying device for rice processing according to claim 1, characterized in that: The drying bin (1) is provided with a feeding device (13); The feeding device (13) comprises: a feeding trough (131), a stirring shaft (132), and a first motor (133); The feed trough (131) is in communication with an end of the feed pipe (11) away from the drying bin (1); The stirring shaft (132) is rotatably disposed in the feed trough (131); The stirring shaft (132) is provided with a stirring blade (1321); The stirring blade (1321) is fixedly connected to the stirring shaft (132); The output shaft of the first motor (133) is drivingly connected to the stirring shaft (132); The housing of the first motor (133) is fixedly connected to the feed trough (131).

3. A continuous drying device for rice processing according to claim 1, characterized in that: The drying chamber (1) is provided with a blower (14); One end of the blower (14) is in communication with the cavity; The other end of the blower (14) is provided with an exhaust hood (15); The exhaust hood (15) is connected to the blower (14); A baffle (151) is provided at one end of the exhaust hood (15) away from the blower (14); The baffle (151) is rotatably connected to the exhaust cover (15).

4. A continuous drying device for rice processing according to claim 1, characterized in that: The drying chamber (1) is provided with an inner cylinder (16); An interlayer is provided between the inner cylinder (16) and the drying chamber (1).

5. A continuous drying device for rice processing according to claim 1, characterized in that: The drying cylinder (2) is provided with a support frame (22); One end of the support frame (22) is connected to the drying cylinder (2), and the other end is connected to the drying chamber (1).

6. A continuous drying device for rice processing according to claim 1, characterized in that: The transmission device (3) further comprises: a second motor (34); The output shaft of the second motor (34) is in driving connection with the transmission shaft (31); The housing of the second motor (34) is fixedly connected to the drying chamber (1).

7. A continuous drying device for rice processing according to claim 1, characterized in that: The hot air device (4) comprises: a hot air blower (41) and a hot air pipe (42); The hot air blower (41) is used to output dry hot air; One end of the hot air pipe (42) is connected to the hot air blower (41), and the other end is connected to the cavity.

8. A continuous drying device for rice processing according to claim 7, characterized in that: The hot air pipe (42) comprises: an annular pipe (421) and a conduit (422); The annular tube (421) is sleeved outside the drying chamber (1); The annular tubes (421) are evenly distributed along the axial direction of the drying chamber (1); The annular tube (421) is provided with an air outlet (4211); The air outlet (4211) is in communication with the cavity; The air outlets (4211) are evenly distributed along the circumferential direction of the annular tube (421); One end of the conduit (422) is connected to the annular tube (421), and the other end is connected to the hot air blower (41).

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