Duck feed drying device

Abstract

The utility model relates to a duck feed drying device which effectively solves the problems that feed drying equipment is high in power consumption and low in drying efficiency. According to the technical scheme, a cylindrical barrel is transversely arranged, a feeding port is formed in one end of the barrel, a discharging port is formed in the other end of the barrel, an interlayer cavity is formed in the lower right portion of the side wall of the barrel, heat conduction oil is contained in the interlayer cavity, an oil liquid circulating pipe is arranged outside the barrel, and the two ends of the oil liquid circulating pipe are both communicated with the interlayer cavity. A heating unit and an oil pump are connected in series on the oil circulating pipe; a rotating shaft is arranged in the cylinder, the rotating shaft is downwards eccentric relative to the axis of the cylinder, a blade plate is fixed on the rotating shaft, and the distance between the outer end of the blade plate and the inner wall of the cylinder is gradually increased in the process that the blade plate rotationally sweeps the interlayer cavity from bottom to top; according to the utility model, a local heating mode and a fixed cylinder body are adopted, so that the driving efficiency of lower heating power is achieved; and dry heat circulation of air is formed in the cylinder body, so that the evaporation efficiency of moisture is improved.

Description

Technical Field

[0001] The utility model relates to the field of feed processing equipment, in particular to a duck feed drying device. Background Art

[0002] The newly formed feed pellets contain a high amount of moisture and need to be dried in a dryer. The utility model patent with application number: CN201420811632.1 discloses a feed dryer, which is provided with an annular interlayer in the side wall of the drying cylinder, and the inner wall of the cylinder is heated after heat conduction is introduced into the interlayer, and then the rotation of the cylinder drives the material to turn over in the cylinder for drying. When the material turns over in the cylinder, it can only turn over in the bottom area of ​​the cylinder, that is, the material can only contact part of the inner wall at the bottom of the cylinder, and heating the cylinder 360 degrees is actually a waste of power. Moreover, the cylinder is generally bulky, and the power required to drive the cylinder to rotate is large, which will also cause the overall power consumption of the equipment to be high, and the rotation of the exposed cylinder is also dangerous. In addition, the evaporation rate is proportional to the air flow rate, and the air in the cylinder of the above patent does not flow, and as the drying proceeds, the cylinder will gradually form a stuffy and humid state, which is not conducive to the rapid evaporation of moisture in the material, and if it is directly circulated and exchanged with the air outside the cylinder, the heat in the cylinder will be quickly dissipated. Summary of the invention

[0003] In order to solve the problems of high power consumption and low drying efficiency of feed drying equipment, the utility model provides a duck feed drying device.

[0004] The technical solution includes a cylindrical body, which is placed horizontally, with a feed port at one end and a discharge port at the other end. An interlayer cavity is provided at the lower right part of the side wall of the cylinder, and heat transfer oil is filled in the interlayer cavity. An oil circulation pipe is provided outside the cylinder, and both ends of the oil circulation pipe are connected to the interlayer cavity. A heating unit and an oil pump are installed in series on the oil circulation pipe. A rotating shaft is provided in the cylinder, which is eccentric downward relative to the axis of the cylinder, and a blade is fixed on the rotating shaft. During the process of the blade rotating from bottom to top and sweeping through the interlayer cavity, the distance between the outer end of the blade and the inner wall of the cylinder gradually increases.

[0005] The cylinder body is provided with a hot air circulation pipe, both ends of the hot air circulation pipe are communicated with the inside of the cylinder body, and a circulation fan and a dehumidification unit are installed on the hot air circulation pipe.

[0006] A heat insulation layer located outside the interlayer cavity is arranged in the side wall of the cylinder.

[0007] The oil circulation pipe is connected in series with an oil storage chamber.

[0008] The cylinder is in a state where one end is higher than the other end, and the end with the discharge port is lower.

[0009] The blades are provided with a plurality of blades evenly distributed around the circumference.

[0010] The local heating mode and the fixed cylinder of the utility model have a lower driving efficiency of heating power; and a dry heat cycle of air is formed in the cylinder, thereby improving the evaporation efficiency of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front sectional view of the utility model.

[0012] Figure 2 for Figure 1 Middle AA section view.

[0013] Figure 3 for Figure 2 Enlarged view of position B in the middle. DETAILED DESCRIPTION

[0014] In conjunction with the accompanying drawings, the utility model includes a cylindrical barrel 1, which is placed horizontally, with a feed port 2 at one end of the barrel 1 and a discharge port 3 at the other end. An interlayer cavity 4 is provided at the rear lower half of the side wall of the barrel 1, and the interlayer cavity 4 is filled with heat transfer oil. An oil circulation pipe 5 is provided outside the barrel 1, and both ends of the oil circulation pipe 5 are connected to the interlayer cavity 4. A heating unit 6 and an oil pump 7 are installed in series on the oil circulation pipe 5. The heating unit 6 heats the heat transfer oil. The heating unit 6 can be heated by electricity or gas. The oil pump 7 drives the heat transfer oil to circulate in the interlayer cavity 4, so that the heat transfer oil in the interlayer cavity 4 is always at a uniform and constant temperature; the barrel 1 is provided with a rotating shaft 8, which is eccentric downward relative to the axis of the cylinder 1, and a blade 9 is fixed on the rotating shaft 8. When the outer end of the blade 9 rotates to the bottom of the cylinder 1, it is closest to the inner wall of the cylinder 1. During the process of the blade 9 rotating from bottom to top and sweeping the interlayer cavity 4, the distance between the outer end of the blade 9 and the inner wall of the cylinder 1 gradually increases. After the material is added to the cylinder 1 from the feed inlet 2, it will settle at the bottom of the cylinder 1. The rotating shaft 8 drives the blade 9 to rotate. During the process of the blade 9 sweeping the interlayer cavity 4, the material will be spread upward along the inner wall of the cylinder 1. As the distance between the blade 9 and the inner wall of the cylinder 1 becomes larger and larger, the material will gradually fall back from the gap between the blade 9 and the inner wall of the cylinder 1.

[0015] A hot air circulation pipe 10 is provided outside the cylinder 1, and both ends of the hot air circulation pipe 10 are connected to the inside of the cylinder 1. A circulating fan 11 and a dehumidification unit 12 are installed on the hot air circulation pipe 10. The dehumidification unit 12 can adopt an adsorption type, such as activated carbon, quicklime, etc. The circulating fan 11 is started to form circulating wind in the cylinder 1, accelerate the air flow rate in the cylinder 1, thereby evaporating the moisture in the block flow. The dehumidification unit 12 can remove the moisture in the circulating airflow, and keep the air in the cylinder 1 at a low humidity without losing the temperature in the barrel, which can also accelerate the evaporation of moisture in the material.

[0016] The side wall of the cylinder 1 is provided with a heat insulating layer 13 located outside the interlayer cavity 4, which can reduce the heat loss of the heat transfer oil in the interlayer cavity 4 to the outside of the cylinder.

[0017] The oil circulation pipe 5 is connected in series with an oil storage chamber 14, which plays a role in buffering flow.

[0018] The cylinder 1 is in a state where one end is higher than the other end, and one end of the discharge port 3 is lower, so that the material can gradually slide toward one end of the discharge port 3 during the process of being swept by the blade 9 .

[0019] The blades 9 are provided with a plurality of blades evenly distributed around the circumference, which can improve the sweeping efficiency of the material.

[0020] When the utility model is in use, the heating unit 6 and the oil pump 7 are started, the heating unit 6 heats the heat-conducting oil, the oil pump 7 drives the heat-conducting oil to circulate in the interlayer cavity 4, heats the inner wall of the cylinder 1 at the position of the interlayer cavity 4, and starts the circulating fan 11 to form a circulating airflow in the cylinder 1, and at the same time starts the rotating shaft 8 to drive the blade 9 to rotate; then the material is added into the cylinder 1 from the feed port 2, and during the rotation of the blade 9, the material deposited at the bottom of the cylinder 1 will be swept upward, so that the material is spread on the inner wall of the cylinder 1 at the interlayer cavity 4 for drying, and because the distance between the outer end of the blade 9 and the inner wall of the cylinder 1 becomes larger and larger during the process of the blade 9 rotating through the interlayer cavity 4, the material will gradually fall back to the bottom of the cylinder 1 from the gap between the blade 9 and the inner wall of the cylinder 1, so that the material is always circulating in the arc segment corresponding to the interlayer cavity 4.

[0021] During the working process, the air temperature in the cylinder 1 will also rise and continue to flow. Therefore, the higher air temperature and faster air flow rate will also evaporate the water in the air faster. The air circulates inside the cylinder 1, and the hot air will not be lost outside the cylinder 1. During the air circulation process, the moisture in the air will be removed by the dehumidification unit 12, so that the air in the cylinder 1 maintains a low humidity.

[0022] Since one end of the discharge port 3 of the cylinder 1 is lower, during the process of the blade 9 sweeping the material, the material will gradually slide toward one end of the discharge port 3 and finally be discharged from the discharge port 3, thereby realizing a continuous drying operation.

[0023] The utility model only arranges the interlayer cavity 4 for heating in the local part of the cylinder 1 which can contact the material, thereby avoiding the heat waste caused by heating the entire cylinder 1 and reducing the heating power.

[0024] The utility model does not need to drive the bulky cylinder 1 to rotate, thus reducing the driving power of the equipment and improving the safety.

[0025] The utility model forms a circulating airflow in the cylinder 1 through the hot air circulation pipe 10, accelerates the air flow rate in the cylinder 1 while avoiding the loss of hot air in the cylinder 1, and dehumidifies during the air circulation process to keep the air in the cylinder 1 at a low humidity, which helps to accelerate the evaporation rate of water in the material.

Claims

1. A duck feed drying device, comprising a cylindrical body (1), the body (1) being horizontally arranged, a feed inlet (2) being opened at one end of the body (1), and a discharge outlet (3) being opened at the other end, characterized in that: An interlayer cavity (4) is provided at the lower right portion of the side wall of the cylinder (1), and heat transfer oil is contained in the interlayer cavity (4). An oil circulation pipe (5) is provided outside the cylinder (1), and both ends of the oil circulation pipe (5) are connected to the interlayer cavity (4). A heating unit (6) and an oil pump (7) are installed in series on the oil circulation pipe (5). A rotating shaft (8) is provided inside the cylinder (1), and the rotating shaft (8) is eccentric downward relative to the axis of the cylinder (1). A blade (9) is fixed on the rotating shaft (8). In the process of the blade (9) rotating from bottom to top and sweeping across the interlayer cavity (4), the distance between the outer end of the blade (9) and the inner wall of the cylinder (1) gradually increases.

2. A duck feed drying device according to claim 1, characterized in that: A hot air circulation pipe (10) is arranged outside the cylinder (1), both ends of the hot air circulation pipe (10) are connected to the inside of the cylinder (1), and a circulation fan (11) and a dehumidification unit (12) are installed on the hot air circulation pipe (10).

3. A duck feed drying device according to claim 1, characterized in that: A heat insulation layer (13) located outside the interlayer cavity (4) is provided in the side wall of the cylinder (1).

4. A duck feed drying device according to claim 1, characterized in that: The oil circulation pipe (5) is connected in series with an oil storage chamber (14).

5. A duck feed drying device according to claim 1, characterized in that: The cylinder (1) is in a state where one end is higher than the other end, and one end of the discharge port (3) is lower.

6. A duck feed drying device according to claim 1, characterized in that: The blades (9) are provided with a plurality of blades evenly distributed around the circumference.

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