CN201359426Y - Mobile continuous rice dryer - Google Patents

Abstract

The utility model relates to a mobile rice continuous dryer, which belongs to a drying processing machine, including a feeding auger, a wind screening device, a drying drum, a discharging cooling device, a transmission mechanism, a heating system, an electrical control system and an automobile chassis. The whole dryer is installed on the chassis of the agricultural vehicle for moving. The outlet of the feeding auger is equipped with a wind screening device for removing impurities in the rice. The main body of the dryer is composed of three layers of drums, each layer of drums is equipped with different rotation directions. The special spiral guide plate and the lifting plate with different angles make the flow direction of each layer of rice different, realizing the purpose of continuous drying from the inner layer to the outer layer, and then cooled by the discharge cooling device at the end, and finally the rice is discharged through the discharge port. The machine is compact in structure, light in size, easy to move, high in drying efficiency, low in energy consumption, and stable in quality.

Description

Mobile Rice Continuous Dryer

technical field

The utility model relates to a grain processing machine, in particular to a mobile rice continuous dryer.

Background technique

In recent years, various types of dryers have been developed all over the country, such as Sanjiu, Jinzi, Sanfafa and downstream, countercurrent, and mixed-flow tower dryers. These imported and domestic dryers have been in the market for many years but are difficult to popularize. , especially in the southern region, the promotion is not large. The reasons are as follows: 1. The above-mentioned models are suitable for use in large-scale grain drying centers. Under our existing agricultural economic foundation and social environment conditions, except for large-scale national grain depots and farms, it is difficult for ordinary farmers and investors to bear Fund pressure, and can not obtain satisfactory returns; 2. This type of dryer is basically designed based on the climatic conditions and materials in the north, and is not suitable for drying high-temperature and high-humidity rice in the south; 3. The existing grain drying The machine is expensive, the drying efficiency is low, the energy consumption is high, and the batch processing cycle is long; 4, fixed operation, the machine utilization rate is low. To solve the above problems, we must break through the constraints of traditional rice drying ideas, pay attention to the application of new technologies, and develop suitable models to solve the problem of rice drying in our province according to the climate characteristics of high temperature and high humidity in our province.

Contents of the invention

The purpose of the utility model is to provide a mobile rice continuous dryer with small volume, high efficiency, low energy consumption, convenient movement and continuous drying.

The technical purpose of the utility model is achieved through the following technical solutions: a mobile rice continuous dryer, including a feeding auger, a wind screening device, an indirect fuel oil hot blast stove, a drying drum, a cooling device, a transmission system, an electric control system and an automobile The chassis is equipped with a wind screening device at the outlet of the feeding auger. The wind screening device is equipped with an adjustable angle movable screen and an adjustable distance axial flow fan. The drying drum is a combination of three layers of cylinders. The inner wall of the cylinder and the outer cylinder is welded with a forward spiral guide plate, and the inner wall of the middle cylinder is welded with a reverse spiral guide plate. Each section of the spiral guide plate is equipped with lifting plates and guides of different shapes and angles to make the rice lift evenly distributed throughout the inner space of the drum. Plate, the heat source of the indirect fuel-fired hot air stove is connected to the inner cylinder of the drying drum, and the top of one side of the dryer is provided with a moisture discharge port for removing moisture, and the cooling device for realizing the cooling of the rice is connected to the discharge port.

The rear section of the drying drum is provided with a cooling device.

The dryer is installed on the chassis of the car and integrated with the chassis of the car.

The utility model is characterized in that the machine is composed of a feeding auger, a wind screening device, an indirect fuel oil hot blast stove, a drying drum, a cooling device, a transmission system, an electric control system and an automobile chassis, and has reasonable structure, good performance and high degree of automation.

The main working principle of this continuous dryer is: the harvested rice is lifted to the guide hopper of the air screening device through the feeding auger, and the impurities in the rice are removed by adjusting the angle of the movable screen and the distance of the axial flow fan, so that the clean wet The rice enters the feeding mechanism through the hopper, and is fed into the inlet inner cylinder of the drying drum through the feeding mechanism, and the drying drum is driven to rotate through the transmission mechanism. Sprinkle, disperse, suspend, and move forward, moving from the inner cylinder to the outer cylinder through the middle cylinder; the dry heat medium is heated by the clean hot air burned by the indirect fuel-fired hot air stove, and the rice is heat-exchanged to take away the moisture in the rice. To achieve the purpose of drying; then the dried rice enters the cooling device and is cooled by the natural air of the environment to achieve the balance between the cooled material and the ambient temperature and humidity, and is discharged through the discharge port to complete the drying process.

Compared with the prior art, the utility model has the following technical advantages:

1. Continuous drying, high degree of automation, easy operation, high reliability and stability of the equipment.

2. The rice is lifted and floated by the lifting board, the heating area is large, and the heat exchange with the hot air is fully performed, and the processing efficiency is high.

3. The wind screening device first directly removes wet impurities, reduces energy consumption, and then greatly reduces equipment operation and loss costs.

4. Compact structure, small size, flexible movement and convenient operation.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of mobile paddy continuous dryer;

Fig. 2 is the sectional view of the drying drum of A-A in Fig. 1;

Fig. 3 is a sectional view of the wind screening device B-B in Fig. 1 .

In the figure: 1. Feeding auger, 2. Wind screening device, 3. Feeding mechanism, 4. Heating fan, 5. Indirect fuel oil hot blast stove, 6. Transmission system, 7. Leveling mechanism, 8. Automobile chassis , 9. Fuel tank, 10. Electric control system, 11. Drying drum, 12. Cooling device, 13. Damp outlet, 14. Outlet, 15. Outer cylinder, 16. Middle cylinder, 17. Inner cylinder, 18. Spiral Guide plate, 19, copying plate, 20, guide plate, 21, hopper, 22, movable screen, 23 large miscellaneous outlets, 24, axial fan, 25, small (light) impurities, 26, paddy, 27, large miscellaneous 28, guide hopper.

Detailed ways

Referring to Fig. 1 and Fig. 2, after the mobile rice continuous dryer arrives at the work site, the drying drum 11 is adjusted to the level by adjusting the leveling mechanism 7, so that the wheels of the automobile chassis 8 are free from pressure; The drying temperature controller in the control system 10 sets the required temperature value, opens the fuel tank 9 valve to supply oil to the burner, turns on the indirect fuel oil hot blast stove 5 switch to heat up, and when the temperature is close to the set temperature, starts the transmission system 6 to drive the drying The drum 11 rotates; the wet rice is lifted to the top of the hopper 21 of the wind screening device 20 through the feeding auger 1, and under the joint action of the axial flow fan 24 and the movable screen 22, the impurities in the wet rice are removed, and the clean rice 26 Entering the feeding mechanism 3, the rice is pushed horizontally to the entrance of the inner cylinder 17 of the drying drum 11 through the spiral blade of the feeding mechanism 3, and under the action of the forward spiral guide plate 18 welded on the inner cylinder, the rice is horizontally from right to left Moving, during the moving process, the paddles 19 at different angles welded in the spiral guide plate pick up and lift the rice, sprinkle it at different heights, fill the entire space of the inner cylinder, fully contact with the hot air, and dry it on the guide plate 20. Under the action of the paddy, it prevents the paddy from moving backward during the fall. The paddy and hot air enter the entrance of the middle tube 16 from the end of the inner tube. Move horizontally to the right, and at the same time, the rice is dried with the hot air exchanged by the inner cylinder under the action of the lifting plate 19 and the guide plate 20; the rice reaches the end of the middle cylinder and enters the entrance of the outer cylinder 15. Under the action of the positive spiral guide plate 18, the rice moves horizontally from right to left, and at the same time, the rice is dried with the hot air exchanged by the inner and middle cylinders under the action of the lifting plate 19 and the guide plate 20, and the rice reaches the outer cylinder 15. At the end, the rice is guided into the cooling device 12 under the action of the lifting board, and the air at room temperature is sucked into the cooling device 12 through the cooling fan, and the dried rice is cooled, and the moisture and waste gas are discharged through the moisture discharge port 13. Paddy is discharged through discharge port 14, carries out above-mentioned process continuously, gets final product.

With reference to shown in Fig. 3, wet paddy is lifted to the top of the hopper 21 of wind screening device 20 through feeding auger 1, by adjusting the front and back distance of axial flow fan 24 (the closer the axial flow fan is to the paddy negative pressure, the greater the suction force will be) ), try to suck away the small (light) impurities 25 in the rice, but the rice cannot be sucked away; at the same time, adjust the angle of the movable screen 22 to allow the rice to pass through the screen smoothly, while the longer large impurities 27 flow along the screen surface. The miscellaneous outlet 23 is discharged outside the machine, and the clean rice 26 is collected and introduced into the feed mechanism 3 through the hopper 21 .

Claims (3)

1, a kind of portable paddy continuous drier, comprise material loading screw feeder (1), pneumatic jig screening device (2), indirect warm air oil furnace (5), drying drum (11), cooling device (12), transmission system (6), electric-control system (10) and automobile chassis (8), it is characterized in that: be provided with pneumatic jig screening device (2) in the exit of material loading screw feeder (1), the movable screen cloth (22) of adjustable-angle and the axial flow blower (24) of adjustable distance are installed on the pneumatic jig screening device (2), drying drum (11) is that three layers of cylindrical shell are combined into one, the inwall of inner core (17) and urceolus (15) is welded with transport screw guide plate (18), the inwall of middle tube (16) is welded with reverse acting spiral guide plate (18), in every section spiral guide plate the difformity that makes paddy promote space in the uniform whole cylinder is housed, flight of angle (19) and guide plate (20), the thermal source of warm air oil furnace (5) is connected to the inner core of drying drum (11) indirectly, one side top of drying machine is provided with the moisture exhausting port (13) of getting rid of moisture, realizes that the cooling device (12) of paddy cooling is connected with discharging opening (14).

2, portable paddy continuous drier according to claim 1, it is characterized in that: the back segment of described drying drum (11) is provided with cooling device (12).

3, portable paddy continuous drier according to claim 1 is characterized in that: described drying machine is installed in automobile chassis (8) and goes up and combine with the automobile chassis one.

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