A rotary tube bundle type heating and evaporating dryer

Abstract

A rotary tube bundle type heating evaporation dryer, including horizontally arranged cylinder, center shaft and tube bundle type heating device are arranged in the cylinder, one end of the center shaft is connected with the rotary joint, the other end of the center shaft is connected with the rotary drive device, the rotary joint is provided with first heat medium import and first heat medium export, the center shaft is provided with heat medium inlet channel and heat medium backflow channel, the tube bundle type heating device includes first rotary disc, second rotary disc and multiple heating tube bundles, the first rotary disc and the second rotary disc are fixedly installed at the both ends outside of the center shaft in the cylinder respectively, and the both ends of any one heating tube bundle are fixedly connected with the first rotary disc and the second rotary disc respectively.The utility model discloses a tube bundle type heating device is arranged, when the rotary drive device drives the rotation of the center shaft, the heating tube bundle can tumble and stir the material, and can heat the material simultaneously, can effectively make the material fully stir, uniformly heat, improve heating efficiency, shorten drying time.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment, and more particularly to drying equipment, especially a rotary tube bundle heating evaporation dryer. Background Technology

[0002] In the prior art, utility model patent CN209019925U discloses a high-efficiency internal rotating disc heating thin film evaporation dryer. Several hollow rotating discs are coaxially arranged on a central shaft, and a heating medium is introduced into the hollow discs. The rotation of the central shaft drives the discs to rotate, stirring the material and improving the heating and evaporation effect of the moisture in the material inside the drum. However, the discs are parallel to each other, resulting in insufficient stirring of the material during disc rotation and insufficient heating of materials farther from the discs, leading to low heating efficiency and a long drying time. Summary of the Invention

[0003] The purpose of this invention is to provide a rotary tube bundle heating evaporation dryer, which aims to solve the technical problems of low heating efficiency and long drying time in the prior art.

[0004] This utility model discloses a rotary tube bundle heating evaporator and dryer, comprising a cylindrical body arranged horizontally along its axial direction. A first flange is located at one end of the cylindrical body, and a second flange is located at the other end. A central shaft and a tube bundle heating device are disposed within the cylindrical body. One end of the central shaft passes through the first flange and connects to a rotary joint, while the other end passes through the second flange and connects to a rotary drive device. The rotary joint has a first heat medium inlet and a first heat medium outlet. The central shaft has a heat medium inlet channel communicating with the first heat medium inlet and a heat medium return channel communicating with the first heat medium outlet. The tube bundle heating device includes a first rotating disk, a second rotating disk, and multiple heating tube bundles. The first and second rotating disks are respectively fixedly installed on the outer sides of the central axis inside the cylinder. Both ends of any one of the heating tube bundles are fixedly connected to the first and second rotating disks respectively. Both the first and second rotating disks are provided with cavities. The cavity of the first rotating disk is connected to the heat medium inlet channel, and the cavity of the second rotating disk is connected to the heat medium return channel. Both ends of the tube cavity of any one of the heating tube bundles are connected to the cavities of the first and second rotating disks respectively. The top of the cylinder is provided with a feed inlet, and the bottom of the cylinder is provided with a discharge outlet. The discharge outlet is equipped with a discharge valve. The axial directions of both the feed inlet and the discharge outlet are perpendicular to the central axis.

[0005] Furthermore, a first shaft sealing device is provided between the central shaft and the first flange, and a first support frame is provided on the outside of the first shaft sealing device on the first flange. A second shaft sealing device is provided between the central shaft and the second flange, and a second support frame is provided on the outside of the second shaft sealing device.

[0006] Furthermore, the rotary joint is mounted on the outside of the first support frame.

[0007] Furthermore, the rotary drive device includes a speed reducer and a motor. The speed reducer is mounted on the outside of the second support frame, and the motor is mounted on one side of the speed reducer. The output shaft of the motor is connected to the input shaft of the speed reducer, and the output shaft of the speed reducer is connected to the central shaft.

[0008] Furthermore, the multiple heating tube bundles are parallel to each other, and the heating tube bundles are arranged in a multi-layered circumferential array.

[0009] Furthermore, a vacuum port is provided at the top of the cylinder, and a vacuum filter is installed in the vacuum port.

[0010] Furthermore, a jacket is provided on the outer side of the cylinder, a second heat medium inlet is provided at the bottom of the jacket, and a second heat medium outlet is provided at the top of the jacket.

[0011] Furthermore, a support frame is provided at the bottom of the cylinder.

[0012] Compared with existing technologies, the advantages of this invention are positive and significant. By incorporating a tube bundle heating device, the heating tube bundle can tumble and stir the material while simultaneously heating it, effectively ensuring thorough mixing and uniform heating, improving heating efficiency, and shortening drying time. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the tube bundle heating device of this utility model.

[0015] The markings in the diagram are as follows: 1. Rotary joint; 101. First heat medium inlet; 102. First heat medium outlet; 2. First support frame; 3. First flange; 4. Cylinder; 401. Feed inlet; 402. Discharge outlet; 403. Vacuum port; 5. Tube bundle heating device; 501. First rotating disk; 502. Second rotating disk; 503. Heating tube bundle; 6. Vacuum filter; 7. Discharge valve; 8. Central shaft; 9. Second flange; 10. Support frame; 11. Second support frame; 12. Rotary drive device; 1201. Reducer; 1202. Motor; 13. Jacket; 1301. Second heat medium inlet; 1302. Second heat medium outlet. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this does not limit the present invention.

[0017] like Figures 1-2 As shown, the rotary tube bundle heating evaporator of this utility model includes a cylindrical body 4 arranged horizontally along the axial direction. A first flange 3 is provided at one end of the cylindrical body 4, and a second flange 9 is provided at the other end. A central shaft 8 and a tube bundle heating device 5 are disposed inside the cylindrical body 4. One end of the central shaft 8 passes through the first flange 3 and is connected to a rotary joint 1, while the other end of the central shaft 8 passes through the second flange 9 and is connected to a rotary drive device 12. The rotary joint 1 is provided with a first heat medium inlet 101 and a first heat medium outlet 102. The central shaft 8 is provided with a heat medium inlet channel communicating with the first heat medium inlet 101 and a heat medium return channel communicating with the first heat medium outlet 102.

[0018] The tubular heating device 5 includes a first rotating disk 501, a second rotating disk 502, and multiple heating tube bundles 503. The first rotating disk 501 and the second rotating disk 502 are respectively fixedly installed on the outer sides of both ends of the central shaft 8 inside the cylinder 4. Both ends of any heating tube bundle 503 are fixedly connected to the first rotating disk 501 and the second rotating disk 502, respectively. Both the first rotating disk 501 and the second rotating disk 502 have cavities. The cavity of the first rotating disk 501 communicates with the heat medium inlet channel, and the cavity of the second rotating disk 502 communicates with the heat medium return channel. Both ends of the tube cavity of any heating tube bundle 503 are respectively connected to the cavities of the first rotating disk 501 and the second rotating disk 502.

[0019] The top of the cylinder 4 is provided with a feed inlet 401, and the bottom of the cylinder 4 is provided with a discharge outlet 402. The discharge outlet 402 is equipped with a discharge valve 7. The axial directions of both the feed inlet 401 and the discharge outlet 402 are perpendicular to the central axis 8.

[0020] Specifically, the feed inlet 401 is used to put the material into the feeding cylinder 4, the rotary drive device 12 is used to drive the central shaft 8 to rotate, and the heating tube bundle 503 stirs the material evenly in the transverse direction during rotation; after the heat medium is input into the first heat medium inlet 101 of the rotary joint 1, the heat medium enters the heating tube bundle 503 after passing through the heat medium entry channel in the central shaft 8 and the first rotating disk 501, which can evenly heat the material being stirred, and then the heat medium returns through the second rotating disk 502 and the heat medium return channel, and the discharge valve 7 is used to discharge the material.

[0021] Furthermore, a first shaft sealing device (not shown in the figure) is provided between the central shaft 8 and the first flange 3, and a first support frame 2 is provided on the outside of the first shaft sealing device on the first flange 3. A second shaft sealing device (not shown in the figure) is provided between the central shaft 8 and the second flange 9, and a second support frame 11 is provided on the outside of the second shaft sealing device.

[0022] Specifically, the first and second shaft sealing devices enable the central shaft 8 to rotate while sealing with the first flange 3 and the second flange 9, maintaining the sealing and rotational stability of the cylinder 1. The first support frame 2 and the second support frame 11 can adopt a closed structure, covering the first and second shaft sealing devices, to achieve a dustproof effect.

[0023] Furthermore, the rotary joint 1 is installed on the outside of the first support frame 2.

[0024] Specifically, the rotary joint 1 is fixedly connected to the first support frame 2, which can fix the orientation of the first heat medium inlet 101 and the second heat medium outlet 102 of the rotary joint 1 when the central shaft 8 rotates.

[0025] Furthermore, the rotary drive device 12 includes a reducer 1201 and a motor 1202. The reducer 1201 is mounted on the outside of the second support frame 11, and the motor 1202 is mounted on one side of the reducer 1201. The output shaft of the motor 1202 is connected to the input shaft of the reducer 1201, and the output shaft of the reducer 1201 is connected to the central shaft 8.

[0026] Specifically, the motor 1202 serves as the power source for the rotary drive device 12. The speed reducer 1201 can increase the output torque, which facilitates stirring. The output shaft 1201 of the speed reducer can be connected to the central shaft 8 via a coupling.

[0027] Furthermore, the multiple heating tube bundles 503 are parallel to each other, and the heating tube bundles 503 are arranged in a multi-layered circumferential array.

[0028] Specifically, such as Figure 2 As shown, the heating tube bundle 503 is arranged in a multi-layered circular array, which can fully stir the material and heat it evenly.

[0029] Furthermore, a vacuum port 403 is provided at the top of the cylinder 4, and a vacuum filter 6 is installed in the vacuum port 403.

[0030] Specifically, when heating and drying the material, the inlet 401 and outlet 402 are sealed. Then, a vacuum can be drawn into the cylinder 4 through the vacuum port 403 to vacuum dry the material, further improving the drying efficiency and shortening the drying time. The vacuum filter 6 can prevent the material from being drawn into the vacuum pipe during vacuuming, thus preventing material loss.

[0031] Furthermore, a jacket 13 is provided on the outer side of the cylinder 4, a second heat medium inlet 1301 is provided at the bottom of the jacket 13, and a second heat medium outlet 1302 is provided at the top of the jacket 13.

[0032] Specifically, while heating the material through the tube bundle heating device 5, the heat medium can be introduced into the jacket 13 through the second heat medium inlet 1301. Using the jacket 13 to heat the cylinder can further shorten the heating time and improve the heating efficiency.

[0033] Furthermore, a support frame 10 is provided at the bottom of the cylinder 4.

[0034] Specifically, the support frame 10 is used to support the cylinder 4.

[0035] In use, the material is first placed into the feeding cylinder 4 through the feed inlet 401. Then, the rotary drive device 12 is started, which drives the central shaft 8 to rotate. The central shaft 8 drives the tube bundle heating device 5 to rotate, and the heating tube bundle 503 stirs the material evenly in the transverse direction. At the same time, the heat medium is input into the first heat medium inlet 101 of the rotary joint 1. After passing through the heat medium entry channel in the central shaft 8 and the first rotating disk 501, the heat medium enters the heating tube bundle 503 and can evenly heat the material being stirred. Then, the heat medium returns through the second rotating disk 502 and the heat medium return channel. After the material is dried, the discharge valve 7 of the discharge port 402 is opened to discharge the material from the cylinder 4.

Claims

1. A rotary tube bundle type heating evaporation dryer, comprising a cylindrical body (4) arranged horizontally along the axial direction, wherein a first flange (3) is provided at one end of the cylindrical body (4) and a second flange (9) is provided at the other end of the cylindrical body (4), characterized in that: The cylinder (4) is equipped with a central shaft (8) and a tube bundle heating device (5). One end of the central shaft (8) passes through a first flange (3) and is connected to a rotary joint (1). The other end of the central shaft (8) passes through a second flange (9) and is connected to a rotary drive device (12). The rotary joint (1) is equipped with a first heat medium inlet (101) and a first heat medium outlet (102). The central shaft (8) is equipped with a heat medium inlet channel communicating with the first heat medium inlet (101) and a heat medium return channel communicating with the first heat medium outlet (102). The tube bundle heating device (5) includes a first rotating disk (501), a second rotating disk (502), and several heating tube bundles (503). The first rotating disk (501) and the second rotating disk (502) are respectively fixedly installed on both ends of the central shaft (8) inside the cylinder (4). On one side, both ends of any of the heating tube bundles (503) are fixedly connected to the first rotating disk (501) and the second rotating disk (502) respectively. The first rotating disk (501) and the second rotating disk (502) are both provided with cavities. The cavity of the first rotating disk (501) is connected to the heat medium inlet channel, and the cavity of the second rotating disk (502) is connected to the heat medium return channel. Both ends of the tube cavity of any of the heating tube bundles (503) are connected to the cavity of the first rotating disk (501) and the cavity of the second rotating disk (502) respectively. The top of the cylinder (4) is provided with a feed port (401), and the bottom of the cylinder (4) is provided with a discharge port (402). The discharge port (402) is equipped with a discharge valve (7). The axial directions of the feed port (401) and the discharge port (402) are both perpendicular to the central axis (8).

2. The rotary tube bundle heat evaporation dryer as claimed in claim 1, wherein: A first shaft sealing device is provided between the central shaft (8) and the first flange (3), and a first support frame (2) is provided on the outside of the first shaft sealing device on the first flange (3). A second shaft sealing device is provided between the central shaft (8) and the second flange (9), and a second support frame (11) is provided on the outside of the second shaft sealing device.

3. The rotary tube bundle heat evaporation dryer as claimed in claim 2, wherein: The rotary joint (1) is installed on the outside of the first support frame (2).

4. The rotary tube bundle heat-pump dryer as claimed in claim 2, wherein: The rotary drive device (12) includes a reducer (1201) and a motor (1202). The reducer (1201) is mounted on the outside of the second support frame (11), and the motor (1202) is mounted on one side of the reducer (1201). The output shaft of the motor (1202) is connected to the input shaft of the reducer (1201), and the output shaft of the reducer (1201) is connected to the central shaft (8).

5. The rotary tube bundle heat-pump dryer as set forth in claim 1, wherein: The multiple heating tube bundles (503) are parallel to each other and are arranged in a multi-layered circumferential array.

6. The rotary tube bundle heat-pump dryer as claimed in claim 1, wherein: The top of the cylinder (4) is provided with a vacuum port (403), and a vacuum filter (6) is installed in the vacuum port (403).

7. The rotary tube bundle heat evaporation dryer as claimed in claim 1, wherein: The outer side of the cylinder (4) is provided with a jacket (13), the bottom of the jacket (13) is provided with a second heat medium inlet (1301), and the top of the jacket (13) is provided with a second heat medium outlet (1302).

8. The rotary tube bundle heat evaporation dryer as claimed in claim 1, wherein: The bottom of the cylinder (4) is provided with a support frame (10).

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