Rice tempering, dehumidifying and drying device

Abstract

The invention is applicable to the technical field of drying devices, and provides a rice tempering, dehumidifying and drying device which comprises a lower tank body with an open top end, and an upper tank body with an open bottom end is detachably mounted at the top end of the lower tank body and matched with the lower tank body in inner and outer diameters. According to the rice tempering, dehumidifying and drying device, the lower tank body, the upper tank body and the packing auger are arranged, the device comprises the upper tank body and the lower tank body, the packing auger and the conveying pipe are arranged in the lower tank body, in the actual use process, the packing auger continuously rotates, rice in the lower tank body can be gradually conveyed upwards from the bottommost end, and the rice in the lower tank body is conveyed upwards; and then the rice falls back to the lower tank body through the opening in the top end of the conveying pipe, the rice can be dried under the drying structure in the upper tank body in the upward conveying process, and the rice can be kept in a standing state for tempering after falling into the lower tank body, so that circular processing of drying and tempering can be performed on the rice in a closed space in the reciprocating manner. And the quality of the rice after drying is ensured.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of drying devices, and particularly relates to a rice slow drying and dehumidifying device. BACKGROUND

[0002] Rice slow drying is a core process for guaranteeing post-harvest quality of rice, and its core role is to remove water from the grain in stages while allowing internal bound water to slowly migrate to the surface through a synergistic mode of "staged low-temperature drying + intermittent closed slow drying", effectively eliminating the water gradient and thermal stress of "outer dry and inner wet", reducing the rate of broken rice and broken rice, and maximizing the retention of the complete grain shape of rice; at the same time, this process can avoid the destruction of nutrients such as starch and protein in rice by high temperature, maintain good processing quality and eating taste, and also can inhibit the growth of mold and the survival of insect eggs through precise temperature and humidity control, reduce mold damage and insect damage during storage, and prolong the shelf life of rice, ultimately achieving the multiple goals of "quality improvement, loss reduction and freshness preservation", and adapting to various scenes from small-scale batch processing by farmers to large-scale continuous production in grain depots.

[0003] At present, the mainstream rice slow drying process adopts a closed-loop process of "preheating - multi-stage drying - intermittent slow drying - cooling - grain discharge", in order to ensure that the water in the rice can be effectively evaporated, the rice will be dried and slow-dried multiple times, so at present, belt drying equipment is mostly used for drying and processing rice, making the drying and slow-drying cycle more smooth, but this processing method has poor sealing effect, which not only reduces the drying efficiency, but also may cause condensation on the inner wall of the equipment, leading to rice cracking and affecting product quality. SUMMARY

[0004] The present application provides a rice slow drying and dehumidifying device, which aims to solve the problem of poor sealing effect of belt drying equipment, which not only reduces the drying efficiency, but also may cause condensation on the inner wall of the equipment, leading to rice cracking and affecting product quality.

[0005] The present application is implemented as follows: a rice slow drying and dehumidifying device, comprising a lower tank body with an open top, and an upper tank body with an open bottom and an inner diameter and an outer diameter that are adapted to the lower tank body, which is detachably mounted on the top of the lower tank body;

[0006] A conveying pipe is fixedly connected vertically to the bottom of the inside of the lower tank body and extends into the inside of the upper tank body, a screw conveyor is rotatably connected vertically to the inside of the bottom of the lower tank body and extends to the top of the conveying pipe, and a plurality of evenly spaced mesh holes are provided transversely through the outer surface of the conveying pipe and located in the inside of the upper tank body.

[0007] The upper tank body is provided with a drying structure.

[0008] Preferably, the drying structure comprises a ring-shaped shunt arranged on the outer surface of the upper tank body and hollowed in the interior, a plurality of air supply pipes are communicated between the ring-shaped shunt and the upper tank body and are uniformly spaced along the circumferential direction of the ring-shaped shunt, and the outer surface of the ring-shaped shunt is communicated with a hot air inlet pipe.

[0009] Preferably, the top end of the upper tank body is communicated with a moisture extraction pipe.

[0010] Preferably, the outer surface of the lower tank body is fixedly connected with a plurality of vertically arranged support legs uniformly spaced along the circumferential direction of the lower tank body, and a plurality of reinforcing crosspieces are transversely fixedly connected between every two adjacent support legs.

[0011] Preferably, the outer surface of the lower tank body is fixedly connected with a plurality of heat dissipation fins between every two adjacent support legs, and the outer surfaces of a plurality of heat dissipation fins in the same direction are fixedly connected with a plurality of heat dissipation fans.

[0012] Preferably, the bottom end of the shaft body of the auger body rotatably penetrates the lower surface of the first tank body and extends downward, the bottom end of the shaft body of the auger body is fixedly connected with a first belt pulley coaxial with the shaft body, a mounting bracket is transversely fixedly connected between the bottom ends of two adjacent support legs, a motor is vertically fixedly connected in the interior of the mounting bracket, the output shaft surface of the motor is fixedly connected with a second belt pulley, and the first belt pulley and the second belt pulley are drivingly connected through a belt.

[0013] Preferably, the interior top end of the first tank body is transversely fixedly connected with a plurality of cross supports extending in the axial direction of the cross supports, a support ring is fixedly connected between the inner ends of a plurality of cross supports, and the support ring is sleeved on the outer surface of the conveying pipe.

[0014] Preferably, a plurality of feed inlets are transversely formed in the bottom end of the outer surface of the conveying pipe.

[0015] Advantages

[0016] Compared with the prior art, the rice slow recovery and drying device has the advantages that the device comprises an upper tank body and a lower tank body which are connected to each other through a flange structure, an auger and a conveying pipe are arranged in the interior of the lower tank body, in actual use, the rice is poured into the interior of the lower tank body, then the upper tank body is installed, and then the rice in the lower tank body is gradually conveyed upward from the bottom end under the continuous rotation of the auger, and then falls back into the lower tank body through the top opening of the conveying pipe, the rice is dried in the drying structure in the upper tank body during the upward conveying, and then is kept in a stationary state for slow recovery after falling into the lower tank body, so that the rice can be cyclically processed for drying and slow recovery in a closed space, and the quality of the dried rice is ensured. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the upper part of the conveying pipe in this invention;

[0020] Figure 4 This is a top view of the structure of the present invention.

[0021] In the diagram: 1-Lower tank, 2-Upper tank, 3-Conveying pipe, 4-Auger, 5-Mesh, 6-Horizontal support, 7-Annular diverter, 8-Air supply pipe, 9-Hot air inlet pipe, 10-Moisture extraction pipe, 11-Heat dissipation fins, 12-Heat dissipation fan, 13-Support leg, 14-Reinforcing crossbar, 15-First pulley, 16-Mounting bracket, 17-Motor, 18-Second pulley, 19-Feed inlet. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0023] Please see Figures 1-4 The present invention provides a technical solution: a rice slow tempering, dehumidification and drying device, including a lower tank 1 with an open top, and an upper tank 2 with an open bottom that is detachably installed at the top of the lower tank 1 with both inner and outer diameters adapted to it.

[0024] The bottom of the lower tank 1 is vertically fixedly connected to a conveying pipe 3 that extends into the upper tank 2. The middle of the bottom of the lower tank 1 and inside the conveying pipe 3 is vertically rotatably connected to an auger 4 that is adapted to the inner diameter of the conveying pipe 3 and extends to its top. The outer surface of the conveying pipe 3 and inside the upper tank 2 is horizontally perforated with multiple evenly spaced mesh holes 5.

[0025] A drying structure is provided on the upper tank 2.

[0026] In the embodiment, the upper tank body 2 and the lower tank body 1 are connected with each other through a flange structure, the inside of the lower tank body 1 is provided with a screw conveyor 4 and a conveying pipe 3, in actual use, the rice is poured into the inside of the lower tank body 1, then the upper tank body 2 is installed, then under the continuous rotation of the screw conveyor 4, the rice in the lower tank body 1 is gradually conveyed upwards from the bottom, then falls back into the lower tank body 1 through the top opening of the conveying pipe 3, the rice is dried in the drying structure in the upper tank body 2 during the upward conveying, and is kept in a static state for recovery after falling into the lower tank body 1, so that the rice can be processed in a closed space through the circulation of drying and recovery, so as to ensure the quality of the dried rice.

[0027] Further, the drying structure comprises an annular flow dividing member 7 provided on the outer surface of the upper tank body 1 and hollow inside, a plurality of air supply pipes 8 are communicated between the annular flow dividing member 7 and the upper tank body 1 and are uniformly arranged along the circumferential direction of the annular flow dividing member 7, and a hot air inlet pipe 9 is communicated with the outer surface of the annular flow dividing member 7.

[0028] The top end of the upper tank body 2 is communicated with a moisture extraction pipe 10.

[0029] In the embodiment, a hot air machine is arranged outside the device, the air outlet end of the hot air machine is communicated with the outer end of the hot air inlet pipe 9, the hot air enters the inside of the annular flow dividing member 7 through the hot air inlet pipe 9, then enters the inside of the upper tank body 1 through the plurality of air supply pipes 8, the hot air enters the inside of the conveying pipe 3 through the plurality of mesh holes 5 after entering the inside of the upper tank body 1, so as to dry the rice rising in the conveying pipe 3, the outer end of the moisture extraction pipe 10 is provided with an air extractor, the hot air entering the device and the water vapor evaporated from the rice are extracted outside together through the continuous suction of the air extractor, so as to prevent the water vapor from remaining in the device and prevent the hot air from affecting the rice recovering in the lower tank body 1.

[0030] Further, a plurality of vertical support legs 13 are fixedly connected to the outer surface of the lower tank body 1 and are uniformly and spaced apart along the circumferential direction of the lower tank body 1, and a plurality of reinforcing cross frames 14 are transversely fixedly connected between every two adjacent support legs 13.

[0031] In the embodiment, the support legs 13 have a supporting effect, and the reinforcing cross frames 14 improve the stability of the support legs 13.

[0032] Further, a plurality of heat dissipation fins 11 are fixedly connected to the outer surface of the lower tank body 1 and are located between every two adjacent support legs 13, and a plurality of heat dissipation fans 12 are fixedly connected to the outer surfaces of the heat dissipation fins 11 in the same direction.

[0033] In the present embodiment, the temperature requirement during the rice recovery process is lower than a certain degree, the inside of the upper tank body 2 and the lower tank body 1 of the device is provided with a plurality of temperature sensors, which can monitor the temperature inside the tank in real time, and the operation of a plurality of cooling fans 12 can be selected according to the specific temperature inside the lower tank body 1, so as to ensure that the temperature inside the lower tank body 1 is maintained within an optimal interval for rice recovery.

[0034] Further, the shaft body of the auger 4 is rotatably penetrated through the lower surface of the first tank body 1 and extends downward, the bottom end of the shaft body of the auger 4 is fixedly connected with a first pulley 15 coaxial therewith, the bottom ends of two adjacent support legs 13 are fixedly connected with a mounting rack 16 transversely, the inside of the mounting rack 16 is fixedly connected with a motor 17 vertically, the surface of the output shaft of the motor 17 is fixedly connected with a second pulley 18, and the first pulley 15 and the second pulley 18 are connected through a belt drive.

[0035] In the present embodiment, the first pulley 15 and the second pulley 18 are synchronous pulleys, when the motor 17 operates, the second pulley 18 fixedly connected with the output shaft thereof will drive the first pulley 15 to rotate through the transmission belt, so as to drive the auger 4 to rotate, the motor 17 is a servo motor, and the rotation speed of the output shaft of the motor 17 can be controlled to change the rotation speed of the auger 4, so as to change the conveying speed of the rice, ensure that the rice can stay in the drying structure for a proper time, and ensure the drying effect.

[0036] Further, the inside of the first tank body 1 is fixedly connected with a plurality of transverse supports 6 extending toward the axial direction at the top end, the inside of the plurality of transverse supports 6 is fixedly connected with a support ring, and the support ring is sleeved on the outer surface of the conveying pipe 3.

[0037] In the present embodiment, the transverse supports 6 and the support ring can support the conveying pipe 3, and ensure the stability of the conveying pipe 3 during operation.

[0038] Further, a plurality of feeding ports 19 are transversely and longitudinally arranged on the bottom end of the outer surface of the conveying pipe 3.

[0039] In the present embodiment, the bottom end of the lower tank body 1 is provided with a funnel-shaped inclined surface, the rice will move to the middle part of the inside of the bottom end under the action of gravity, then enter the inside of the conveying pipe 3 through the plurality of feeding ports 19, and be driven upward by the auger 4.

[0040] The bottom end of the lower tank body 1 is further provided with a discharge pipe, the outer end of which is closed by a closure plug, and the closure plug can be opened to discharge the rice from the inside of the device after the drying process is completed.

[0041] The working principle and use process of the present application: after the installation of the present application, the upper tank body 2 and the lower tank body 1 of the device are connected with each other through the flange structure, the inside of the lower tank body 1 is provided with the auger 4 and the conveying pipe 3, in actual use, the rice is poured into the inside of the lower tank body 1, then the upper tank body 2 is installed, then under the continuous rotation of the auger 4, the rice in the inside of the lower tank body 1 is gradually conveyed upward from the bottom end, then falls back to the lower tank body 1 through the top opening of the conveying pipe 3, the rice is dried in the drying structure in the inside of the upper tank body 2 in the process of upward conveying, and falls into the inside of the lower tank body 1 to keep the state of static and recovery, so that the circulation of drying and recovery of the rice in the closed space can be realized, and the quality of the dried rice is ensured.

[0042] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rice tempering, dehumidification, and drying device, characterized in that: The lower tank (1) is open at the top, and an upper tank (2) with an open bottom is detachably installed at the top of the lower tank (1) with both inner and outer diameters adapted to it. The bottom of the lower tank (1) is vertically fixedly connected to a conveying pipe (3) extending into the upper tank (2). The middle of the bottom of the lower tank (1) and inside the conveying pipe (3) is vertically rotatably connected to an auger (4) that is adapted to the inner diameter of the conveying pipe (3) and extends to its top. The outer surface of the conveying pipe (3) and inside the upper tank (2) is horizontally perforated with a plurality of evenly spaced mesh holes (5). The upper tank (2) is equipped with a drying structure.

2. The rice tempering, dehumidification, and drying device as described in claim 1, characterized in that: The drying structure includes an annular diverter (7) disposed on the outer surface of the upper tank (1) and hollow inside. The annular diverter (7) and the upper tank (1) are connected by a plurality of air supply pipes (8) evenly spaced along their circumference. The outer surface of the annular diverter (7) is connected to a hot air inlet pipe (9).

3. The rice tempering, dehumidification, and drying device as described in claim 1, characterized in that: The top of the upper tank (2) is connected to a moisture extraction pipe (10).

4. The rice tempering, dehumidification, and drying device as described in claim 1, characterized in that: The outer surface of the lower tank (1) is uniformly and fixedly connected with a plurality of vertically arranged support legs (13) along its circumference, and a plurality of reinforcing crossbars (14) are fixedly connected laterally between each pair of adjacent support legs (13).

5. The rice tempering, dehumidification, and drying device as described in claim 4, characterized in that: Multiple heat dissipation fins (11) are fixedly connected to the outer surface of the lower tank (1) and between every two adjacent support legs (13). Multiple heat dissipation fans (12) are fixedly connected to the outer surface of the multiple heat dissipation fins (11) in the same direction.

6. The rice tempering, dehumidification, and drying device as described in claim 1, characterized in that: The bottom end of the shaft of the auger (4) is rotatably connected through the lower surface of the first tank (1) and extends downward. The bottom end of the shaft of the auger (4) is fixedly connected to a first pulley (15) coaxial with it. The bottom ends of two adjacent support legs (13) are horizontally fixedly connected to a mounting bracket (16). The inside of the mounting bracket (16) is vertically fixedly connected to a motor (17). The output shaft surface of the motor (17) is fixedly connected to a second pulley (18). The first pulley (15) and the second pulley (18) are connected by belt drive.

7. The rice tempering, dehumidification, and drying device as described in claim 1, characterized in that: The inner top of the first tank (1) is fixedly connected with a plurality of horizontal supports (6) whose inner ends extend toward their axial direction. The inner ends of the plurality of horizontal supports (6) are fixedly connected with a support ring, which is sleeved on the outer surface of the conveying pipe (3).

8. The rice tempering, dehumidification, and drying device as described in claim 1, characterized in that: The bottom of the outer surface of the conveying pipe (3) is provided with multiple feed inlets (19) that run horizontally through it.

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