A vibrating dryer

Abstract

The present invention relates to a vibration dryer, which comprises a drying tank in the shape of a horizontal cylinder. A discharge pipe penetrates through the bottom of the drying tank. A nitrogen pulse injection device located outside the drying tank is arranged on the outer side of the discharge pipe. A vibration motor is arranged on the outer side of the bottom of the drying tank. The axis of the vibration motor and the center of gravity of the drying tank are in the same plane. The included angle between the same plane and the vertical plane is 10-20°. A heating jacket is arranged on the outer side of the drying tank. At least one heating pipe is arranged in the drying tank. Both ends of the heating pipe extend out of one end of the drying tank. A plurality of fins arranged at intervals are sleeved on the heating pipe. The fins are located inside the drying tank. The vibration dryer of the present invention has high drying efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of drying equipment, and particularly relates to a vibrating dryer. Background Art

[0002] A vibrating dryer is a drying equipment that uses a vibrating motor to generate an exciting force by throwing; the main body of the vibrating dryer is a vertical or horizontal cylindrical container, and the vibrating mechanism outside the container makes the powder or granular materials in the container flow; the container is equipped with a heating jacket, so that the materials are evenly heated, without consuming a large amount of gas, and there is no need for auxiliary equipment such as a blower and a dust collector. It has the characteristics of a stirring dryer and can significantly reduce the drawback of particle breakage; the internal structure of the container is simple and easy to clean, which is conducive to the replacement of the dried materials; the container is airtight and can be operated under vacuum or pressure, and can also be protected by inert gas to prevent the oxidation of the materials. It is suitable for the drying of heat-sensitive, reactive, and combustible solvent-containing materials.

[0003] The drying efficiency of the common vibrating dryers on the market is not high enough. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a vibrating dryer with high drying efficiency.

[0005] To solve the above technical problem, a dryer provided by the present invention includes a drying tank in the shape of a horizontal cylinder. An outlet pipe penetrates through the bottom of the drying tank. A nitrogen pulse injection device located outside the drying tank is arranged on the outer side of the outlet pipe. A vibrating motor is arranged on the outer side of the bottom of the drying tank. The axis of the rotating shaft of the vibrating motor and the center of gravity of the drying tank are in the same plane. The included angle between the same plane and the vertical plane is 10° to 20°. A heating jacket is arranged on the outer side of the drying tank. At least one heating pipe is arranged in the drying tank. Both ends of the heating pipe extend out of the same end of the drying tank. A plurality of spaced fins are sleeved on the heating pipe, and the fins are located in the drying tank.

[0006] Further, the included angle between the same plane and the vertical plane is 15°; the exciting force of the vibrating motor can not only make the materials move in a circular motion in the drying tank, but also make the materials receive an upward thrust to be thrown in the drying tank, accelerating the continuous alternation of the materials in contact with the heating surface, thereby accelerating the drying of the materials.

[0007] Further, the inner side surface of the drying tank is in a drum shape; the drying tank with this shape is conducive to the complete discharge of the materials, without dead corners and without material accumulation.

[0008] Furthermore, the nitrogen pulse injection device includes an annular pipe sleeved outside the discharge pipe. A plurality of branch pipes are evenly distributed on the circumference of the annular pipe. Air inlet holes with the same number and corresponding positions as the branch pipes are formed on the side wall of the discharge pipe. One end of the branch pipe far away from the annular pipe is connected to the air inlet hole. The air inlet hole is inclined and forms an angle of 10-30° with the axial direction of the discharge pipe. The annular pipe is connected to a nitrogen tank through a pipeline, and an electromagnetic pulse valve is provided on this pipeline. The electromagnetic pulse valve is automatically controlled by a controller to open and close at regular intervals, so that the nitrogen pulse injection device intermittently injects nitrogen into the discharge pipe.

[0009] Furthermore, the cross-section of the fin is diamond-shaped; the diamond-shaped fin has higher mechanical strength, is not easily deformed, can effectively prevent adhesion to materials, and also plays a certain auxiliary role in turning the materials.

[0010] Furthermore, the heating pipe is U-shaped and has two straight pipe sections arranged at intervals. There are multiple heating pipes and they are arranged in multiple layers at intervals. Each layer has multiple heating pipes arranged at intervals, and the straight pipe sections of adjacent layers are arranged staggeredly; the U-shaped heating pipe does not have the deformation problem caused by thermal expansion and contraction. The staggered arrangement of the straight pipe sections of adjacent layers makes the materials more easily dispersed, increases the contact probability between the materials and the heating pipe, and is beneficial to the flow of the materials and the update of the contact surface.

[0011] Furthermore, there are multiple heating pipes, including first heating pipes arranged at intervals. The first heating pipes are U-shaped and have two straight pipe sections arranged at intervals. Second heating pipes are arranged at intervals between adjacent first heating pipes. The second heating pipes are M-shaped and have four straight pipe sections arranged at intervals. The straight pipe sections of adjacent heating pipes are arranged staggeredly. A cylinder is provided outside the end of the drying tank, and a partition is provided inside the cylinder. Oil inlet and outlet cavities are respectively formed on the left and right sides of the partition. The two ends of the heating pipe are respectively connected to the oil inlet and outlet cavities; while adopting a floating head structure, it is ensured that the straight pipe sections of adjacent heating pipes are arranged staggeredly; the heat-conducting oil will not short-circuit when flowing.

[0012] Furthermore, a plurality of airbag supports are vertically provided on the front and rear sides of the drying tank. The airbag support includes a column, and a rubber air spring is provided at the top of the column. The top surface of the rubber air spring is used to support and fix the drying tank; by adjusting the internal air pressure of the rubber air spring, the best balance point is found to achieve the low-noise, high-amplitude, and stable operation of the dryer, and to accelerate the drying of the materials to the greatest extent.

[0013] Further, a vacuum extraction port is provided at the top of the drying tank. The vacuum extraction port is connected to a sintered mesh filter, a cyclone separator, and a bag filter in sequence through pipelines. An inlet port is provided at the top of the drying tank. Rotary feed valves are connected to the dust discharge ports of the cyclone separator and the bag filter respectively. The discharge ports of the rotary feed valves are connected to the inlet port of the drying tank through pipelines. The exhaust port of the bag filter is connected to a condenser, a buffer tank, and a vacuum pump unit in sequence through pipelines; the fine powder collected by the cyclone separator and the bag filter is transported into the drying tank, improving the first-pass qualification rate of the product; the solvent is recovered and utilized through the condenser, saving resources and reducing production costs.

[0014] Advantages of the present invention: The nitrogen pulse injection device intermittently injects nitrogen into the discharge pipe, causing the material to turn over and spread from the center to the periphery. The movement speed of the material is increased, thus accelerating the drying of the material. The nitrogen pulse injection device also plays a role in flushing the inner wall of the discharge pipe; the axis of the vibration motor is coplanar with the center of gravity of the drying tank, and the angle between the coplanar plane and the vertical plane is 10° to 20°. The vibration motor is installed at a specific position. The exciting force of the vibration motor can not only make the material move in a circular motion in the drying tank, but also make the material receive an upward thrust to be tossed in the drying tank, accelerating the continuous alternating contact of the material with the heating surface, thus accelerating the drying of the material; the material is heated doubly by the heating jacket and the heating tube to accelerate the drying of the material; fins are sleeved on the heating tube, increasing the heat exchange area of the heating tube and improving the heating efficiency, thus accelerating the drying of the material. There will be no dead corners and material accumulation on the heating tube with fins; therefore, the drying efficiency of the vibration dryer of the present invention is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To clearly illustrate the innovative principle of the invention and its advantages compared with the existing vibration dryers, the following non-limiting examples applying the principle are illustrated with the help of the drawings. In the figures:

[0016] Figure 1 is a schematic diagram of a vibration dryer of the present invention;

[0017] Figure 2 is Figure 1 the right view of;

[0018] Figure 3 is Figure 1 the left view of;

[0019] Figure 4 is the full cross-sectional view of the nitrogen pulse injection device;

[0020] Figure 5 is Figure 4 the perspective view of;

[0021] Figure 6 is a perspective view of the heating tube;

[0022] Figure 7 is a perspective view of the heating tube;

[0023] Figure 8 is Figure 7 the left view of;

[0024] Figure 9 is Figure 1 a schematic diagram of the vibrating dryer of. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0026] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. Embodiment

[0029] As Figures 1-3, A vibrating dryer according to this embodiment includes a drying tank 1 in the shape of a horizontal cylinder. A discharge pipe 2 penetrates through the bottom of the drying tank 1. A nitrogen pulse injection device 3 located outside the drying tank 1 is provided on the outer side of the discharge pipe 2. A vibration motor 5 is provided on the outer side of the bottom of the drying tank 1. The axis of the rotating shaft of the vibration motor 5 and the center of gravity of the drying tank 1 are in a common plane G. The angle between the common plane G and the vertical plane is 10 to 20°. A heating jacket 6 is provided on the outer side of the drying tank 1. At least one heating pipe 7 is provided inside the drying tank 1. Both ends of the heating pipe 7 extend out of the same end of the drying tank 1. A plurality of spaced fins 8 are sleeved on the heating pipe 7. The fins 8 are located inside the drying tank 1.

[0030] Preferably, one end of the heating pipe 7 is adapted to introduce heat-conducting oil, hot water or steam, and the other end of the heating pipe 7 is adapted to discharge the heat-conducting medium; the heating pipe 7 can also be an electric heating pipe.

[0031] Preferably, the angle between the common plane G and the vertical plane is 15°.

[0032] The inner side surface of the drying tank 1 is in a drum shape.

[0033] Such as Figures 4-5 , The nitrogen pulse injection device 3 includes an annular pipe 9 sleeved on the outer side of the discharge pipe 2. Four branch pipes 10 are circumferentially and evenly arranged on the annular pipe 9. Four air inlet holes 11 corresponding to the positions of the branch pipes 10 are opened on the side wall of the discharge pipe 2. The end of the branch pipe 10 away from the annular pipe 9 is connected to the air inlet hole 11. The air inlet hole 11 is inclined and forms an angle of 10 to 30° with the axial direction of the discharge pipe 2. The annular pipe 9 is connected to a nitrogen tank through a pipeline, and an electromagnetic pulse valve is provided on this pipeline.

[0034] Preferably, the cross section of the fin 8 is in a diamond shape.

[0035] Such as Figure 6 , The heating pipe 7 is in a U shape. The heating pipe 7 has two spaced straight section pipes 7-10. The number of the heating pipes 7 is 4 and they are arranged in 3 layers at intervals. The straight section pipes 7-10 of adjacent layers are staggered.

[0036] Such as Figures 7-8, the number of the heating pipes 7 is three, including two first heating pipes 7-1 arranged at intervals. The first heating pipes 7-1 are U-shaped and have two straight pipes 7-10 arranged at intervals. A second heating pipe 7-2 is arranged at intervals between adjacent first heating pipes 7-1. The second heating pipe 7-2 is M-shaped and has four straight pipes 7-10 arranged at intervals. The straight pipes 7-10 of adjacent heating pipes 7 are arranged in a staggered manner. A cylinder 101 is arranged outside the end of the drying tank 1. A partition 12 is arranged inside the cylinder 101. The left and right sides of the partition 12 respectively form an inlet oil chamber 13 and an outlet oil chamber 14. The two ends of the heating pipe 7 are respectively communicated with the inlet oil chamber 13 and the outlet oil chamber 14.

[0037] Two airbag supports 4 are vertically arranged on the front and rear sides of the drying tank 1. The airbag support 4 includes a column 15. A rubber air spring 16 is arranged at the top of the column 15. The top surface of the rubber air spring 16 is used to support and fix the drying tank 1.

[0038] As Figure 9 , a vacuum pumping port 17 is opened at the top of the drying tank 1. The vacuum pumping port 17 is connected to a sintered mesh filter 18, a cyclone separator 19, and a bag dust collector 20 in sequence through pipelines. A feed port 24 is opened at the top of the drying tank 1. Rotary feeder valves 25 are connected to the dust discharge ports of the cyclone separator 19 and the bag dust collector 20. The discharge ports of the rotary feeder valves 25 are connected to the feed port 24 of the drying tank 1 through pipelines. The exhaust port of the bag dust collector 20 is connected to a condenser 21, a buffer tank 22, and a vacuum pump unit 23 in sequence through pipelines.

[0039] The nitrogen pulse injection device 3 intermittently injects nitrogen into the discharge pipe 2, causing the material to turn over and spread from the center to the periphery. The movement speed of the material is increased, thus accelerating the drying of the material. The nitrogen pulse injection device 3 also plays a role in flushing the inner wall of the discharge pipe 2. The axis of the vibration motor 5 and the center of gravity of the drying tank 1 are in a common plane G. The angle between the common plane G and the vertical plane is 10 to 20°. The vibration motor 5 is installed at a specific position. The exciting force of the vibration motor 5 can not only make the material move in a circular motion in the drying tank 1, but also make the material receive an upward thrust to be tossed in the drying tank 1, accelerating the continuous alternation of the material in contact with the heating surface, thus accelerating the drying of the material. The material is heated doubly by the heating jacket 6 and the heating pipe 7 to accelerate the drying of the material. A fin 8 is sleeved on the heating pipe 7, increasing the heat exchange area of the heating pipe 7 and improving the heating efficiency, thus accelerating the drying of the material. There will be no dead corners and material accumulation on the heating pipe 7 with fins 8. Therefore, the drying efficiency of the vibration dryer in this embodiment is high.

[0040] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A vibrating dryer, characterized in that, It includes a drying tank (1) in the shape of a horizontal cylinder. A discharge pipe (2) penetrates through the bottom of the drying tank (1). A nitrogen pulse injection device (3) located outside the drying tank (1) is provided on the outer side of the discharge pipe (2). A vibration motor (5) is provided on the outer side of the bottom of the drying tank (1). The axis of the rotating shaft of the vibration motor (5) and the center of gravity of the drying tank (1) are in a coplanar plane (G). The angle between the coplanar plane (G) and the vertical plane is 10 - 20°. A heating jacket (6) is provided on the outer side of the drying tank (1). At least one heating pipe (7) is provided inside the drying tank (1). Both ends of the heating pipe (7) extend out of the same end of the drying tank (1). A plurality of fins (8) arranged at intervals are sleeved on the heating pipe (7). The fins (8) are located inside the drying tank (1). The nitrogen pulse injection device (3) includes an annular pipe (9) sleeved on the outer side of the discharge pipe (2). A plurality of branch pipes (10) are evenly distributed in a circumferential direction on the annular pipe (9). Air inlet holes (11) with the same number and corresponding positions as the branch pipes (10) are opened on the side wall of the discharge pipe (2). The end of the branch pipe (10) far from the annular pipe (9) is connected to the air inlet hole (11). The air inlet hole (11) is inclined and forms an angle of 10 - 30° with the axial direction of the discharge pipe (2). The annular pipe (9) is connected to a nitrogen tank through a pipeline, and an electromagnetic pulse valve is provided on this pipeline. The inner side surface of the drying tank (1) is in a drum shape.

2. The vibrating dryer according to claim 1, wherein: The angle between the coplanar plane (G) and the vertical plane is 15°.

3. The vibrating dryer according to claim 1, wherein: The cross-section of the fin (8) is in a rhombus shape.

4. The vibrating dryer according to claim 1, wherein: The heating pipe (7) is in a U shape. The heating pipe (7) has two straight pipe sections (7-10) arranged at intervals. The number of the heating pipes (7) is multiple and they are arranged in multiple layers at intervals. Each layer has multiple heating pipes (7) arranged at intervals. The straight pipe sections (7-10) of adjacent layers are arranged staggeredly.

5. The vibrating dryer according to claim 1, wherein: The number of the heating pipes (7) is multiple, including a first heating pipe (7-1) arranged at intervals. The first heating pipe (7-1) is in a U shape and has two straight pipe sections (7-10) arranged at intervals. A second heating pipe (7-2) is arranged at intervals between adjacent first heating pipes (7-1). The second heating pipe (7-2) is in an M shape and has four straight pipe sections (7-10) arranged at intervals. The straight pipe sections (7-10) of adjacent heating pipes (7) are arranged staggeredly. A cylinder body (101) is provided on the outer side of the end of the drying tank (1). A partition plate (12) is provided inside the cylinder body (101). The left and right sides of the partition plate (12) respectively form an oil inlet cavity and an oil outlet cavity (13, 14). Both ends of the heating pipe (7) are respectively communicated with the oil inlet cavity and the oil outlet cavity (13, 14).

6. The vibrating dryer according to claim 1, wherein: A plurality of airbag supports (4) are vertically provided on the front and rear sides of the drying tank (1). The airbag support (4) includes a column (15). A rubber air spring (16) is provided at the top of the column (15). The top surface of the rubber air spring (16) is used for supporting and fixing the drying tank (1).

7. The vibrating dryer according to claim 1, characterized in that: A vacuum extraction port (17) is provided at the top of the drying tank (1). The vacuum extraction port (17) is connected in sequence through pipelines to a sintered mesh filter (18), a cyclone separator (19), and a bag filter (20). An inlet port (24) is provided at the top of the drying tank (1). Rotary feeder valves (25) are connected to the dust discharge ports of the cyclone separator (19) and the bag filter (20). The discharge ports of the rotary feeder valves (25) are connected to the inlet port (24) of the drying tank (1) through pipelines. The exhaust port of the bag filter (20) is connected in sequence through pipelines to a condenser (21), a buffer tank (22), and a vacuum pump unit (23).

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