Filtering system of vacuum distillation furnace

Abstract

The invention discloses a vacuum distillation furnace filtering system which comprises a bottom plate, a central controller installed on the bottom plate, a vacuum equipment module installed on a supporting table, a vacuum distillation furnace fixedly connected to a supporting reinforcing frame, a vacuum gauge installed in the vacuum distillation furnace and a first temperature sensor installed in the vacuum distillation furnace. A pressure sensor is installed in the vacuum distillation furnace, a multi-layer filtering module is installed between the bottom plate and the discharging pipe, and a waste heat recovery module is installed between the bottom plate and the vacuum distillation furnace. Particles are dynamically separated through the multiple layers of filtering modules by means of centrifugal force, the blocking problem of traditional static filtering is avoided, meanwhile, the two filtering modules are divided through the discharging pipe to operate separately, filter element replacement without shutdown is achieved, and the shutdown maintenance time is shortened.

Description

Technical Field

[0001] The present invention belongs to the technical field of vacuum distillation furnaces, and particularly relates to a vacuum distillation furnace filtration system. Background Art

[0002] Vacuum distillation, also known as "vacuum distillation", is one of the distillation methods. It is carried out under reduced pressure, generally used to separate substances that are prone to decomposition or polymerization when heated to boiling under normal pressure, or combined with other distillation methods (such as steam distillation) to reduce the distillation temperature. Vacuum distillation has a wide range of uses.

[0003] Traditional vacuum distillation furnaces do not filter the raw materials after distillation, and the waste heat in the distillation furnace is not reused, resulting in energy loss and waste. At the same time, the vacuum degree in the vacuum distillation furnace is not monitored in real time, so the equipment cannot be maintained in time. Therefore, a vacuum distillation furnace filtration system is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a vacuum distillation furnace filtration system to solve the problems raised in the above background art.

[0005] A vacuum distillation furnace filtration system includes a bottom plate, on which a central controller is installed. A support platform is fixedly connected to the bottom plate, and a vacuum equipment module is installed on the support platform. A support reinforcement frame is fixedly connected to the bottom plate, and a vacuum distillation furnace is fixedly connected to the support reinforcement frame. An air delivery pipe is connected between the vacuum distillation furnace and the vacuum equipment module. A feed pipe is fixedly connected to the vacuum distillation furnace, and a first electric valve is installed on the feed pipe. A discharge pipe is fixedly connected to the vacuum distillation furnace. The discharge pipe is a Y-shaped flow pipe, and two second electric valves are installed on the discharge pipe. A vacuum gauge is installed inside the vacuum distillation furnace, a first temperature sensor is installed inside the vacuum distillation furnace, and a pressure sensor is installed inside the vacuum distillation furnace. A multi-layer filtration module is installed between the bottom plate and the discharge pipe, and a waste heat recovery module is installed between the bottom plate and the vacuum distillation furnace. A preheating box is connected between the bottom plate and the waste heat recovery module. A placement rack body is fixedly connected inside the preheating box, and a second temperature sensor is installed inside the preheating box.

[0006] Furthermore, the vacuum equipment module is an integrated multi-stage vacuum pump group, mainly composed of a Roots pump and a molecular pump.

[0007] Further, the multi-layer filtration module consists of a filtration tank, a support frame, a first driving motor, a first rotating shaft, a first gear, a second rotating shaft, a second gear, a centrifugal barrel, a bearing seat, a third electric valve, an electric push rod, and a material cleaning device. Two combined filtration tanks are fixedly connected to the bottom plate. A support frame is fixedly connected to the filtration tank. A first driving motor is fixedly installed on the support frame. A first rotating shaft is connected to the output shaft of the first driving motor. The first rotating shaft is rotatably connected to the filtration tank. A first gear is connected to the first rotating shaft. A second rotating shaft is rotatably connected to the filtration tank. A second gear is connected to the second rotating shaft. The second gear meshes with the first gear. A centrifugal barrel is connected to the second rotating shaft. A discharge pipe is connected to the centrifugal barrel. A bearing seat is connected inside the filtration tank. The bearing seat is rotatably connected to the centrifugal barrel. The centrifugal barrel is rotatably connected to the filtration tank. A third electric valve is installed on the discharge pipe of the centrifugal barrel. Two electric push rods are fixedly installed on the filtration tank. A material cleaning device is connected to the telescopic rod of the electric push rod.

[0008] Further, the waste heat recovery module consists of a condenser, a first heat extraction pipe, a second heat extraction pipe, a cooling tower, a third heat extraction pipe, a heat exchanger, and a fourth heat extraction pipe. A condenser is fixedly installed on the bottom plate. A first heat extraction pipe is connected between the condenser and the vacuum distillation furnace. A second heat extraction pipe is connected to the condenser. A cooling tower is fixedly installed on the bottom plate. The cooling tower is connected to the second heat extraction pipe. A heat exchanger is fixedly installed on the bottom plate. A third heat extraction pipe is connected between the heat exchanger and the first heat extraction pipe. A fourth heat extraction pipe is connected between the heat exchanger and the preheating tank.

[0009] Further, a rotating frame is fixedly connected to the bottom plate. A fixing frame is fixedly connected to the rotating frame. A second driving motor is fixedly installed on the fixing frame. A third rotating shaft is rotatably connected to the rotating frame. The third rotating shaft is rotatably connected to the second driving motor. A cover plate is fixedly connected to the third rotating shaft.

[0010] Further, a plurality of heating pipes are installed inside the preheating tank.

[0011] Further, the inside of the vacuum distillation furnace adopts an SiC coating or Hastelloy to extend the service life of the equipment.

[0012] Further, the centrifugal barrel adopts a silicon carbide nano-coating to enhance the stability of the filter medium in high-temperature (>1200°C) and strongly corrosive environments.

[0013] Further, the communication protocol interface of the central controller adopts a 4-20mA analog signal output or an industrial Ethernet redundant channel.

[0014] The beneficial effects of the present invention:

[0015] 1. The present invention utilizes centrifugal force to dynamically separate particulate matter through a multi-layer filtration module, avoiding the clogging problem of traditional static filtration. At the same time, it is divided into two filtration modules by the discharge pipe to operate separately, enabling the replacement of the filter element without stopping the machine and reducing the downtime for maintenance.

[0016] 2. The present invention recovers the waste heat from distillation through a waste heat recovery module and then transfers it to the preheating tank to preheat the raw materials to be processed, reducing energy consumption.

[0017] 3. The present invention forms an intelligent real-time monitoring module through the cooperation among the central controller, vacuum gauge, first temperature sensor, and pressure sensor, enabling the vacuum gauge to monitor the vacuum degree inside the vacuum distillation furnace in real time, thus ensuring the normal operation of the vacuum distillation furnace. Description of the Drawings

[0018] Figure 1 is a three-dimensional structural schematic diagram of the filtration system of the vacuum distillation furnace of the present invention;

[0019] Figure 2 is a first three-dimensional side view structural schematic diagram of the bottom plate;

[0020] Figure 3 is a three-dimensional sectional structural schematic diagram of the vacuum distillation furnace;

[0021] Figure 4 is a three-dimensional side view structural schematic diagram of the support reinforcement frame;

[0022] Figure 5 is a three-dimensional side view structural schematic diagram of the filtration box;

[0023] Figure 6 is a first three-dimensional sectional structural schematic diagram of the filtration box;

[0024] Figure 7 is a second three-dimensional sectional structural schematic diagram of the filtration box;

[0025] Figure 8 is a second three-dimensional side view structural schematic diagram of the bottom plate;

[0026] Figure 9 is a three-dimensional side view structural schematic diagram of the preheating tank;

[0027] Figure 10 is a three-dimensional sectional structural schematic diagram of the preheating tank.

[0028] In the figure, 1 - bottom plate, 2 - central controller, 3 - support platform, 4 - vacuum equipment module, 5 - gas transmission pipe, 6 - support reinforcement frame, 7 - vacuum distillation furnace, 8 - feeding pipe, 9 - first electric valve, 10 - discharging pipe, 11 - second electric valve, 12 - vacuum gauge, 13 - first temperature sensor, 14 - pressure sensor, 15 - multi - layer filtration module, 1501 - filtration box, 1502 - support frame, 1503 - first driving motor, 1504 - first rotating shaft, 1505 - first gear, 1506 - second rotating shaft, 1507 - second gear, 1508 - centrifugal barrel, 1509 - bearing seat, 1510 - third electric valve, 1511 - electric push rod, 1512 - material cleaning device, 16 - waste heat recovery module, 1601 - condenser, 1602 - first heat extraction pipe, 1603 - second heat extraction pipe, 1604 - cooling tower, 1605 - third heat extraction pipe, 1606 - heat exchanger, 1607 - fourth heat extraction pipe, 17 - pre - heating box, 18 - rotating frame, 19 - fixing frame, 20 - second driving motor, 21 - third rotating shaft, 22 - cover plate, 23 - placement frame body, 24 - second temperature sensor, 25 - heating pipe. Detailed implementation mode

[0029] 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.

[0030] As Figures 1 to 10 shown in this vacuum distillation furnace filtration system of the present invention, it includes a bottom plate 1, on which a central controller 2 is installed, a support platform 3 is fixedly connected to the bottom plate 1, a vacuum equipment module 4 is installed on the support platform 3, a support reinforcement frame 6 is fixedly connected to the bottom plate 1, a vacuum distillation furnace 7 is fixedly connected to the support reinforcement frame 6, a gas transmission pipe 5 is connected between the vacuum distillation furnace 7 and the vacuum equipment module 4, a feeding pipe 8 is fixedly connected to the vacuum distillation furnace 7, a first electric valve 9 is installed on the feeding pipe 8, a discharging pipe 10 is fixedly connected to the vacuum distillation furnace 7, the discharging pipe 10 is a Y - shaped flow pipe, and two second electric valves 11 are installed on the discharging pipe 10. A vacuum gauge 12 is installed inside the vacuum distillation furnace 7, which monitors the vacuum degree inside the vacuum distillation furnace 7 in real time. A first temperature sensor 13 is installed inside the vacuum distillation furnace 7, which monitors the temperature inside the vacuum distillation furnace 7 in real time. A pressure sensor 14 is installed inside the vacuum distillation furnace 7, which monitors the pressure inside the vacuum distillation furnace 7 in real time. A multi - layer filtration module 15 is installed between the bottom plate 1 and the discharging pipe 10, a waste heat recovery module 16 is installed between the bottom plate 1 and the vacuum distillation furnace 7, a pre - heating box 17 is connected between the bottom plate 1 and the waste heat recovery module 16, a placement frame body 23 is fixedly connected inside the pre - heating box 17, the placement frame body 23 is provided with a plurality of through - holes, and a second temperature sensor 24 is installed inside the pre - heating box 17.

[0031] The vacuum equipment module 4 is an integrated multi-stage vacuum pump set, mainly composed of a Roots pump and a molecular pump, which realizes rapid vacuum pumping and precise pressure regulation.

[0032] The multi-layer filtration module 15 is composed of a filtration box 1501, a support frame 1502, a first drive motor 1503, a first rotating shaft 1504, a first gear 1505, a second rotating shaft 1506, a second gear 1507, a centrifugal barrel 1508, a bearing seat 1509, a third electric valve 1510, an electric push rod 1511 and a material cleaning device 1512. Two combined filtration boxes 1501 are fixedly connected to the bottom plate 1. A support frame 1502 is fixedly connected to the filtration box 1501. A first drive motor 1503 is fixedly installed on the support frame 1502. A first rotating shaft 1504 is connected to the output shaft of the first drive motor 1503. The first rotating shaft 1504 is rotationally connected to the filtration box 1501. A first gear 1505 is connected to the first rotating shaft 1504. A second rotating shaft 1506 is rotationally connected to the filtration box 1501. A second gear 1507 is connected to the second rotating shaft 1506. The second gear 1507 meshes with the first gear 1505. A centrifugal barrel 1508 is connected to the second rotating shaft 1506. A discharge pipe is connected to the centrifugal barrel 1508. The centrifugal barrel 1508 dynamically separates particulate matter by centrifugal force. A bearing seat 1509 is connected inside the filtration box 1501. The bearing seat 1509 is rotationally connected to the centrifugal barrel 1508. The centrifugal barrel 1508 is rotationally connected to the filtration box 1501. A third electric valve 1510 is installed on the discharge pipe of the centrifugal barrel 1508. Two electric push rods 1511 are fixedly installed on the filtration box 1501. A material cleaning device 1512 is connected to the telescopic rod of the electric push rod 1511. The material cleaning device 1512 is used to push out the particulate matter at the bottom of the filtration box 1501.

[0033] The waste heat recovery module 16 is composed of a condenser 1601, a first heat extraction pipe 1602, a second heat extraction pipe 1603, a cooling tower 1604, a third heat extraction pipe 1605, a heat exchanger 1606 and a fourth heat extraction pipe 1607. The condenser 1601 is fixedly installed on the bottom plate 1. The condenser 1601 is used to quickly condense the high-temperature steam generated during the distillation process into a liquid. A first heat extraction pipe 1602 is connected between the condenser 1601 and the vacuum distillation furnace 7. A second heat extraction pipe 1603 is connected to the condenser 1601. The cooling tower 1604 is fixedly installed on the bottom plate 1. The cooling tower 1604 is used to provide a cooling water cycle for the condenser 1601 and discharge the waste heat into the atmosphere through evaporation heat dissipation. The cooling tower 1604 is connected to the second heat extraction pipe 1603. The heat exchanger 1606 is fixedly installed on the bottom plate 1. The heat exchanger 1606 transfers the waste heat to the raw materials in the preheating box 17. A third heat extraction pipe 1605 is connected between the heat exchanger 1606 and the first heat extraction pipe 1602. A fourth heat extraction pipe 1607 is connected between the heat exchanger 1606 and the preheating box 17.

[0034] A rotating frame 18 is fixedly connected to the bottom plate 1, a fixed frame 19 is fixedly connected to the rotating frame 18, a second driving motor 20 is fixedly installed on the fixed frame 19, a third rotating shaft 21 is rotatably connected to the rotating frame 19, the third rotating shaft 21 is rotatably connected to the second driving motor 20, and a cover plate 22 is fixedly connected to the third rotating shaft 21.

[0035] A plurality of heating tubes 25 are installed inside the preheating box 17.

[0036] The inside of the vacuum distillation furnace 7 is coated with SiC or Hastelloy to extend the service life of the equipment.

[0037] The centrifugal barrel 1508 is coated with a silicon carbide nano - coating to improve the stability of the filter medium in high - temperature (>1200°C) and strongly corrosive environments.

[0038] The communication protocol interface of the central controller 2 uses 4 - 20mA analog signal output or industrial Ethernet redundant channels.

[0039] The working principle of the present invention is as follows: After the raw material to be processed is put into the vacuum distillation furnace through the feeding pipe, the first electric valve will close the feeding pipe. The vacuum equipment module will evacuate the inside of the vacuum distillation furnace into a vacuum. The vacuum gauge, the first temperature sensor and the pressure sensor will monitor the inside of the vacuum distillation furnace in real time, so as to realize real - time data acquisition, data processing, judge whether it is within the set range. If it is abnormal, an alarm will be triggered, and at the same time, the data will be recorded for subsequent analysis. The collected data can be observed through the screen of the central controller.

[0040] During the processing of the raw material, the high - temperature steam enters the condenser through the first heat extraction pipe. The condenser quickly condenses the high - temperature steam into a liquid and releases heat at the same time. The cooling tower provides cooling water for the condenser through the second heat extraction pipe. The waste heat will be transferred to the cooling water. The cooling tower discharges the waste heat into the atmosphere through evaporation heat dissipation. Part of the waste heat will enter the heat exchanger through the third heat extraction pipe. The heat exchanger recovers the waste heat, so that the waste heat enters the preheating box through the fourth heat extraction pipe to preheat the raw material in the preheating box. When the second temperature sensor detects that the temperature inside the preheating box is insufficient, it will control the heating tube to release heat, so as to continuously preheat the raw material.

[0041] After the raw materials are processed in the vacuum distillation furnace, the second electric valve opens the discharge pipe, allowing the raw materials to flow into the centrifugal bucket through the discharge pipe. After the raw materials have flowed out, the first drive motor drives the first rotating shaft, the first gear, the second rotating shaft, the second gear and the centrifugal bucket to rotate, dynamically separating particulate matter by using centrifugal force to avoid the clogging problem of traditional static filtration. The separated particulate matter will fall to the bottom of the filter box. After the raw materials are filtered, the first drive motor is controlled to stop working. Then the third electric valve will open the discharge pipe of the centrifugal bucket, and the raw materials will be discharged through the discharge pipe of the centrifugal bucket. Subsequently, the electric push rod drives the cleaning device to move, so that the cleaning device pushes the particulate matter out of the filter box, thereby keeping the inside of the filter box clean.

[0042] When it is desired to preheat the raw materials, the second drive motor is controlled to drive the third rotating shaft and the cover plate to rotate, so that the cover plate opens the inside of the preheating box. Then, the loading bucket containing the raw materials is placed on the placement rack. Subsequently, the second drive motor is controlled to drive the third rotating shaft and the cover plate to rotate in the reverse direction, so that the cover plate closes the inside of the preheating box.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vacuum distillation furnace filtration system, characterized in that: It includes a base plate, on which a central controller is installed, a support platform is fixedly connected to the base plate, on which a vacuum equipment module is installed, a support reinforcement frame is fixedly connected to the base plate, on which a vacuum distillation furnace is fixedly connected, a gas pipe is connected between the vacuum distillation furnace and the vacuum equipment module, a feed pipe is fixedly connected to the vacuum distillation furnace, on which a first electric valve is installed, a discharge pipe is fixedly connected to the vacuum distillation furnace, the discharge pipe is a Y-shaped flow pipe, on which two second electric valves are installed, a vacuum gauge is installed inside the vacuum distillation furnace, a first temperature sensor is installed inside the vacuum distillation furnace, a pressure sensor is installed inside the vacuum distillation furnace, a multi-layer filtration module is installed between the base plate and the discharge pipe, a waste heat recovery module is installed between the base plate and the vacuum distillation furnace, a preheating box is connected between the base plate and the waste heat recovery module, a mounting frame is fixedly connected inside the preheating box, and a second temperature sensor is installed inside the preheating box.

2. The vacuum distillation furnace filtration system according to claim 1, characterized in that: The vacuum equipment module is an integrated multi-stage vacuum pump group, which is mainly composed of Roots pump and molecular pump.

3. The vacuum distillation furnace filtration system according to claim 1, characterized in that: The multi-layer filtering module is composed of a filter box, a support frame, a first driving motor, a first rotating shaft, a first gear, a second rotating shaft, a second gear, a centrifugal bucket, a bearing seat, a third electric valve, an electric push rod and a material cleaner. Two combined filter boxes are fixedly connected to the bottom plate, the filter box is fixedly connected to the support frame, the first driving motor is fixedly installed on the support frame, the first driving motor output shaft is connected to the first rotating shaft, the first rotating shaft is rotatably connected to the filter box, the first gear is connected to the first rotating shaft, the filter box is rotatably connected to the second rotating shaft, the second rotating shaft is connected to the second gear, the second gear is meshed with the first gear, the second rotating shaft is connected to the centrifugal bucket, the centrifugal bucket is connected to a discharge pipe, the filter box is connected with a bearing seat, the bearing seat is rotatably connected to the centrifugal bucket, the centrifugal bucket is rotatably connected to the filter box, the third electric valve is installed on the centrifugal bucket discharge pipe, two electric push rods are fixedly installed on the filter box, and a material cleaner is connected to the telescopic rod of the electric push rod.

4. The vacuum distillation furnace filtration system according to claim 1, characterized in that: The waste heat recovery module consists of a condenser, a first heat extraction pipe, a second heat extraction pipe, a cooling tower, a third heat extraction pipe, a heat exchanger and a fourth heat extraction pipe. The condenser is fixedly installed on the bottom plate, the first heat extraction pipe is connected between the condenser and the vacuum distillation furnace, the second heat extraction pipe is connected to the condenser, the cooling tower is fixedly installed on the bottom plate, the cooling tower is connected to the second heat extraction pipe, the heat exchanger is fixedly installed on the bottom plate, the third heat extraction pipe is connected between the heat exchanger and the first heat extraction pipe, and the fourth heat extraction pipe is connected between the heat exchanger and the preheating box.

5. The vacuum distillation furnace filtration system according to claim 1, characterized in that: The bottom plate is fixedly connected with a rotating frame, the rotating frame is fixedly connected with a fixed frame, the fixed frame is fixedly installed with a second drive motor, the rotating frame is rotatably connected with a third rotating shaft, the third rotating shaft is rotatably connected with the second drive motor, and the third rotating shaft is fixedly connected with a cover plate.

6. The vacuum distillation furnace filtration system according to claim 1, characterized in that: A plurality of heating tubes are installed inside the preheating box.

7. The vacuum distillation furnace filtration system according to claim 1, characterized in that: The interior of the vacuum distillation furnace uses SiC coating or Hastelloy to extend the service life of the equipment.

8. The vacuum distillation furnace filtration system according to claim 3, characterized in that: The centrifugal barrel adopts silicon carbide nano-coating to improve the stability of the filter medium in high temperature (>1200℃) and highly corrosive environment.

9. The vacuum distillation furnace filtration system according to claim 1, characterized in that: The central controller communication protocol interface adopts 4-20mA analog signal output or industrial Ethernet redundant channel.

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