CN217612957U - High melting point compound distillation device - Google Patents
High melting point compound distillation device Download PDFInfo
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- CN217612957U CN217612957U CN202121129427.3U CN202121129427U CN217612957U CN 217612957 U CN217612957 U CN 217612957U CN 202121129427 U CN202121129427 U CN 202121129427U CN 217612957 U CN217612957 U CN 217612957U
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Abstract
The utility model discloses a high melting point compound distillation plant, include: the system comprises a reaction kettle, a rising pipe, a primary condenser, a receiving tank, a secondary condenser, a buffer tank and a vacuum machine; the system comprises a reaction kettle, a rising pipe, a primary condenser, a receiving tank, a secondary condenser and a buffer tank, wherein the reaction kettle, the rising pipe, the primary condenser, the receiving tank, the secondary condenser and the buffer tank are sequentially connected to form a sealed system; the vacuum machine is used for vacuumizing the sealed system, so that steam in the reaction kettle forms airflow which sequentially passes through the rising pipe, the primary condenser, the receiving tank, the secondary condenser and the buffer tank; the rising pipe and each sealed pipeline are provided with heating modules which are used for preheating the pipeline until the temperature of the pipeline is higher than the melting point of the product. The device of the utility model realizes the distillation of the high melting point compound and can prevent the solidification of the material and the blockage of the pipeline.
Description
Technical Field
The utility model relates to a pharmaceutical chemical production equipment field especially relates to a distillation plant suitable for high melting point compound.
Background
In the production process of chemical products or medical products, the distillation process is an important product separation, purification and extraction operation. However, the traditional distillation device has single function, only can distill and extract products which are liquid at normal temperature, and the common distillation device is not applicable to products which are solid at normal temperature.
For products that are solid at room temperature, the difficulties in performing distillation operations mainly include: 1) Heating and melting the solid product, and then vaporizing the solid product at a certain temperature; 2) The vaporized material should be prevented from condensing to a solid state in the conduit in the non-collection area, which would otherwise cause the conduit to become plugged. Conventional distillation apparatus have difficulty solving these difficulties.
There is a need in the art to provide a distillation apparatus suitable for high melting point compounds.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a high melting point compound distillation plant is provided, can be with some normal atmospheric temperature in the production process of chemical products or medical products be solid-state high melting point compound and carry out the distillation operation, has reached the purpose of separation purification or extraction.
In order to solve the technical problem, the utility model provides a following technical scheme:
a high melting point compound distillation apparatus comprising: the system comprises a reaction kettle, a rising pipe, a primary condenser, a receiving tank, a secondary condenser, a buffer tank and a vacuum machine; wherein,
a steam outlet of the reaction kettle is connected with a first end of the rising pipe, a second end of the rising pipe is connected with an inlet of the first-stage condenser, an outlet of the first-stage condenser is connected with an inlet of the receiving tank through a sealing pipeline, an outlet of the receiving tank is connected with an inlet of the second-stage condenser through a sealing pipeline, an outlet of the second-stage condenser is connected with an inlet of the buffer tank through a sealing pipeline, and an outlet of the buffer tank is connected with the vacuum machine; the reaction kettle, the rising pipe, the primary condenser, the receiving tank, the secondary condenser and the buffer tank are sequentially connected to form a sealed system;
the rising pipe is used for guiding steam in the reaction kettle to the primary condenser;
the primary condenser is used for cooling the passing steam;
the receiving tank is used for receiving the material cooled and supplemented by the primary condenser;
the secondary condenser is used for performing secondary complement on steam discharged from the outlet of the receiving tank;
the buffer tank is used for providing a buffer space between the outlet of the secondary condenser and the vacuum machine;
the vacuum machine is responsible for vacuumizing a sealing system, so that steam in the reaction kettle forms airflow which sequentially passes through the rising pipe, the primary condenser, the receiving tank, the secondary condenser and the buffer tank;
the rising pipe and each sealed pipeline are provided with heating modules which are used for preheating the pipeline until the temperature of the pipeline is higher than the melting point of the product.
Specifically, the heating module comprises a pipe jacket positioned on the rising pipe and each sealed pipeline, and a heated flowing medium can be filled in the pipe jacket.
Preferably, all components between the rising pipe and the buffer tank are provided with heating modules which are responsible for preheating all the pipes from the rising pipe to the buffer tank so that the temperature of the pipes is higher than the melting point of the product. The heating modules can be uniformly regulated and controlled.
Preferably, all components between the rising pipe and the buffer tank are provided with a pipe jacket, and the pipe jacket can be filled with a heated flowing medium. More preferably, the pipe jackets of all the parts between the rising pipe and the buffer tank are integrated jackets and can be uniformly regulated and controlled.
Specifically, the rising pipe is arranged vertically. The first end faces downward and the second end faces upward. Preferably, the height of the rising pipe is 0.5-2 meters. Preferably, the internal diameter of the rising pipe is 5-30 cm.
Specifically, a first temperature gauge and a first pressure gauge are arranged between the second end of the rising pipe and an inlet of the primary condenser. The first thermometer is responsible for detecting the temperature in the pipeline before the inlet of the primary condenser. The first pressure gauge is used for detecting the pressure in the pipeline in front of the inlet of the primary condenser.
Specifically, the steam outlet of the reaction kettle is positioned at the top of the reaction kettle and is opened upwards.
Specifically, a second thermometer and a second pressure gauge are installed at the outlet of the primary condenser. The second thermometer is responsible for detecting the temperature in the pipeline at the outlet of the primary condenser. And the second pressure gauge is responsible for detecting the pressure in the pipeline at the outlet of the primary condenser.
Specifically, a sight glass is installed on a sealed pipeline between an outlet of the primary condenser and an inlet of the receiving tank. The flow of the material liquefied by the primary condenser into the receiving tank is observed by the sight glass.
Specifically, the receiving tank is provided with a drain hole, and the drain hole is a channel for discharging the materials collected by the receiving tank out of the receiving tank. And the discharge hole is provided with a valve for controlling the switch.
Specifically, the receiving tank is provided with a pipe jacket, and a heated flowing medium can be filled in the pipe jacket.
Specifically, the number of the receiving tanks is two, namely a first receiving tank and a second receiving tank.
Specifically, the first receiving tank and the second receiving tank are connected in parallel; the sealed pipeline connected with the outlet of the primary condenser forms two branches which are respectively connected with the inlet of the first receiving tank and the inlet of the second receiving tank; and the sealed pipeline connected with the inlet of the secondary condenser forms two branches which are respectively connected with the outlet of the first receiving tank and the outlet of the second receiving tank. Preferably, the first receiving tank and the second receiving tank each have a drain.
Preferably, the discharge opening is provided with a heating device. The heating device heats and preserves the heat of the discharge hole, and the product is prevented from being blocked due to the solidification of the discharge hole.
Specifically, a third temperature gauge and a third pressure gauge are installed at the inlet of the secondary condenser. The third thermometer is responsible for detecting the temperature in the pipeline at the inlet of the secondary condenser. And the third pressure gauge is responsible for detecting the pressure in the pipeline at the inlet of the secondary condenser.
Specifically, a flowing medium inlet of the primary condenser is connected with an output port of a first flowing medium box through a flowing medium input pipe, and a flowing medium outlet of the primary condenser is connected with a return port of the first flowing medium box through a flowing medium output pipe; the flowing medium inlet of the secondary condenser is connected with the output port of the second flowing medium box through a flowing medium input pipe, and the flowing medium outlet of the secondary condenser is connected with the reflux port of the second flowing medium box through a flowing medium output pipe; valves are respectively installed on a flowing medium inlet and a flowing medium inlet of the first-stage condenser, valves are respectively installed on an output port and a return port of the first flowing medium tank, valves are respectively installed on a flowing medium inlet and a flowing medium inlet of the second-stage condenser, and valves are also respectively installed on an output port and a return port of the second flowing medium tank.
Specifically, a flowing medium input pipe of the primary condenser is communicated with a flowing medium input pipe of the secondary condenser through a first grafting pipeline, and a valve for controlling a pipeline to be opened and closed is arranged on the first grafting pipeline; and the flowing medium output pipe of the primary condenser is communicated with the flowing medium output pipe of the secondary condenser through a second grafting pipeline, and a valve for controlling the pipeline to be opened and closed is arranged on the second grafting pipeline. The flowing media of the first-stage condenser and the second-stage condenser can be flexibly switched according to requirements, so that the control temperature switching of the two condensers is realized.
Specifically, the buffer tank is provided with an exhaust pipe, and the exhaust pipe is provided with a valve for controlling the opening and closing of the exhaust pipe.
The high melting point compound in the present invention is a solid compound at normal temperature involved in the production process of chemical products or pharmaceutical products. Preferably, the high melting point compound is a compound having a melting point of 30 to 200 ℃.
The utility model provides a high melting point compound distillation plant, through reation kettle, rise and fly the pipe, the one-level condenser, receive the jar, second grade condenser and buffer tank connect gradually and form sealed system, be responsible for sealed system evacuation by the vacuum machine, it can carry out the distillation operation to be solid-state high melting point compound in the reation kettle under normal atmospheric temperature, and all set up heating module through rising the pipe and each sealed pipeline and make pipeline temperature maintain and be higher than the product melting point, prevent material solidification and jam pipeline.
The utility model provides a heating module of all parts between high melting point compound distillation plant's rising pipe and the buffer tank can be unified to be regulated and control, is favorable to simplifying the control operation, reduces the energy consumption.
The utility model provides a high melting point compound distillation plant carry out the two-stage type collection to the distillation material, the first section is that it makes it flow into the collecting vessel to liquefy steam through the one-level condenser, the second end will not be through the one-level condenser a small amount of steam of complete liquefaction carry out the entrapment once more at the second grade condenser through the second grade condenser, after the distillation end with the clamp cover medium switching of second grade condenser for hot water, flow back to the receiving vessel after melting the product that condenses in the second grade condenser, the loss is taken out away in the minimize vacuum.
The utility model provides a high melting point compound distillation plant's one-level condenser and second grade condenser's flowing medium input tube and flowing medium output tube are respectively through the grafting pipeline intercommunication, and the grafting pipeline intercommunication is provided with the valve of control duct switch, can switch the flowing medium in one-level condenser and the second grade condenser in a flexible way, reaches switching control temperature's purpose.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the distillation apparatus for high melting point compounds according to the present invention.
Fig. 2 is a schematic structural view of example 2 of the distillation apparatus for high melting point compounds according to the present invention.
Description of the symbols in the drawings:
1. is a reaction kettle;
1a is a steam outlet;
2. is a rising pipe;
2a is a first end;
2b is a second end;
3. is a first-stage condenser;
3a is an inlet of a first-stage condenser;
3b is the outlet of the first-stage condenser;
4. is a receiving tank;
4a is an inlet of the receiving tank;
4b is the outlet of the receiving tank;
4c is a discharge hole of the receiving tank;
41. is a first receiving tank;
42. a second receiving tank;
5. is a secondary condenser;
5a is an inlet of a secondary condenser;
5b is the outlet of the secondary condenser;
6. is a buffer tank;
6a is an inlet of the buffer tank;
6b is an outlet of the buffer tank;
61. is an emptying pipe;
7. is a vacuum machine;
8. is a sight glass;
9. is a first flow media tank;
10. a second flow media tank;
11a is a first thermometer;
11b is a second thermometer;
11c is a third thermometer;
12a is a first pressure gauge;
12b is a second pressure gauge;
12c is a third pressure gauge;
13a is a first grafting pipeline;
13b is a second grafting pipeline.
Detailed Description
The technical solution of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example one
A high melting point compound distillation apparatus, as shown in fig. 1, comprising: the system comprises a reaction kettle 1, a rising pipe 2, a primary condenser 3, a receiving tank 4, a secondary condenser 5, a buffer tank 6 and a vacuum machine 7. Wherein, the reaction kettle 1 is provided with a steam outlet 1a, and the material steam generated in the distillation operation of the reaction kettle 1 is discharged through the steam outlet 1 a. The rising pipe 2 is provided with a first end 2a and a second end 2b which are opposite, the first end 2a is connected with the steam outlet 1a, the second end 2b is connected with the inlet 3a of the primary condenser, and the rising pipe 2 is responsible for guiding the steam in the reaction kettle 1 to the primary condenser 3. The outlet 3b of the first-level condenser is connected with the inlet 4a of the receiving tank through a sealing pipeline, the first-level condenser 3 is responsible for cooling passing steam, and the receiving tank 4 is responsible for receiving materials cooled and supplemented by the first-level condenser 3. The export 4b of receiving the jar passes through sealed tube coupling with the import 5a of second grade condenser, and the export 5b of second grade condenser passes through sealed tube coupling with the import 6a of buffer tank, and second grade condenser 5 is responsible for carrying out the secondary complement to the export exhaust steam of receiving jar 4, and vacuum machine 7 is connected to the export 6b of buffer tank, and buffer tank 6 is responsible for providing buffer space for between the export of second grade condenser 5 and the vacuum machine 7. From this, reation kettle 1, rising pipe 2, one-level condenser 3, receiving tank 4, secondary condenser 5 and buffer tank 6 connect gradually and form sealed system, and vacuum machine 7 is responsible for taking out the vacuum for sealed system, makes the steam formation in the reation kettle 1 pass through rising pipe 2, one-level condenser 3, receiving tank 4, secondary condenser 5, the air current of buffer tank 6 in proper order. The rising pipe 2 and each sealed pipeline are provided with heating modules, and the heating modules are responsible for preheating the pipeline until the temperature of the pipeline is higher than the melting point of the product. In fig. 1, solid black lines with arrows indicate sealed line connections.
The device of this embodiment is through by reation kettle 1, it is 2 to rise to manage, one-level condenser 3, receiving tank 4, second grade condenser 5 and buffer tank 6 connect gradually and form sealed system, be responsible for being this sealed system evacuation by vacuum machine 7, it can carry out the distillation operation to make reation kettle 1 interior room temperature be solid-state high melting point compound, can realize the incessant distillation of high melting point compound and draw, and make pipeline temperature maintain at being higher than the product melting point through the heating module that all sets up at rising pipe 2 and each sealed pipeline, prevent material solidification and jam pipeline.
The heating module is not shown in fig. 1. One specific example of a heating module is a pipe jacket on the rising pipe 2 and the respective sealing lines, which pipe jacket can be filled with a heated flowing medium. The circulation of the flowing medium can bring heating and heat preservation effects to the pipeline. Except for the rising pipe 2 and each sealed pipeline, all components between the rising pipe 2 and the buffer tank 6, including the rising pipe 2, the primary condenser 3, the receiving tank 4, the secondary condenser 5 and the buffer tank 6 can be provided with corresponding heating modules, and the heating modules are responsible for preheating all pipelines from the rising pipe to the buffer tank so that the pipeline temperature is higher than the melting point of a product. All the heating modules can be uniformly regulated and controlled. In a preferred mode, the rising pipe 2, the primary condenser 3, the receiving tank 4, the secondary condenser 5, the buffer tank 6 and the sealed pipelines between the rising pipe and the receiving tank are provided with pipe jackets, and the pipe jackets can be filled with a heated flowing medium. The above components and the pipe jackets of the sealing pipelines between the components can form a jacket with an integrated structure, and uniform regulation and control can be realized.
As shown in fig. 1, a steam outlet 1a of the reaction vessel 1 is located at the top of the reaction vessel 1 and is opened upward. The rising pipe 2 is a straight pipe which is vertically arranged. The rising pipe 2 has a first end 2a facing downwards and a second end 2b facing upwards. The height of the rising pipe 2 is preferably 0.5 to 2 meters. The internal diameter of the rising pipe 2 is preferably 5 to 30 cm.
As shown in fig. 1, a first temperature gauge 11a and a first pressure gauge 12a are installed between the second end 2b of the rising pipe 2 and the inlet 3a of the primary condenser. The first temperature table 11a is responsible for detecting the temperature in the line before the inlet 3a of the primary condenser. A first pressure gauge 12a is responsible for detecting the pressure in the line before the inlet 3a of the primary condenser. The outlet 3b of the primary condenser is provided with a second thermometer 11b and a second pressure gauge 12b. The second temperature gauge 11b is responsible for detecting the temperature in the line at the outlet 3b of the primary condenser. The second pressure gauge 12b is responsible for detecting the pressure in the line at the outlet 3b of the primary condenser. The inlet 5a of the secondary condenser is provided with a third temperature gauge 11c and a third pressure gauge 12c. The third temperature table 11c is responsible for detecting the temperature in the line at the inlet 5a of the secondary condenser. A third pressure gauge 12c is responsible for detecting the pressure in the line at the inlet 5b of the secondary condenser. The first thermometer 11a, the second thermometer 11b, and the third thermometer 11c are preferably used
As shown in fig. 1, a sight glass 8 is further installed on the sealed pipe between the outlet 3b of the primary condenser and the inlet 4a of the receiving tank, and the sight glass 8 can provide a viewing window to visually observe the flow of the material liquefied through the primary condenser into the receiving tank. The material of the sight glass 8 is preferably high-temperature glass.
As shown in fig. 1, the receiving tank 4 is provided with a drain port 4c, and the drain port 4c is a passage through which the material collected by the receiving tank 4 is discharged out of the receiving tank 4. The discharging port 4 is provided with a valve for controlling the switch. The receiving tank 4 may be provided with a pipe jacket through which hot water is passed for keeping the product in the receiving tank 4 in a molten liquid state. Simultaneously, the drain hole 4c of receiving jar 4 can set up heating device, heats through this heating device to drain hole 4c and keeps warm, avoids the product to cause the jam at the solidification of drain hole 4 c. The heating device is preferably an electric heating device, such as an electric tracing thermal insulation sleeve, and has the advantages of high heating efficiency and convenience in use and adjustment. The receiving tank 4 may also be equipped with a level gauge for indicating the amount of product received in the receiving tank 4. The liquid level meter can adopt a differential pressure liquid level meter.
As shown in fig. 1, the front end of the receiving tank 4 is connected with a first-stage condenser 3, the rear end of the receiving tank 4 is connected with a second-stage condenser 5, and the receiving tank 4 is used for collecting distilled materials in a two-stage manner. The first stage of collection is to liquefy the steam through the first-stage condenser 3 and make the steam flow into the collection tank 4, the second stage of collection is to collect a small amount of steam which is not completely liquefied through the first-stage condenser 3 in the second-stage condenser 5 again through the second-stage condenser 5, the jacket medium of the second-stage condenser 5 is switched into hot water after distillation is finished, the condensed product in the second-stage condenser 5 is melted and then flows back into the collection tank 4, and the loss of vacuum pumping is reduced as much as possible. The controlled temperature of the primary condenser 3 is typically required to be above the melting point of the product to avoid clogging of the product as it solidifies within the system before entering the receiving tank 4. The control temperature of the secondary condenser 5 is generally required to be lower than the control temperature of the primary condenser 3 to further capture a small amount of vapor that is not completely liquefied by the primary condenser 3. The temperature of the secondary condenser 5 may be controlled to be lower than the melting point of the product, as appropriate, to enhance the trapping effect. The solidification of a small amount of product in the secondary condenser 5 does not cause a close blockage. The solidified product in the secondary condenser 5 can be melted after adjusting the temperature of the fluid medium and returned to the receiving tank 4.
As shown in fig. 1, the flow medium inlet pipe and the flow medium inlet pipe of the primary condenser 3 are connected to a first flow medium tank 9. The flow medium inlet and the flow medium inlet of the secondary condenser 5 are connected to a second flow medium tank 10. The first-stage condenser 3 and the second-stage condenser 5 respectively have independent temperature control modes. In fig. 1, the flow medium supply line and the flow medium supply line are shown by dashed lines with arrows. In fig. 1, the flowing medium inlet of the first-stage condenser 3 is connected to the outlet of the first flowing medium tank 9 via a flowing medium inlet pipe, and the flowing medium outlet of the first-stage condenser 3 is connected to the return port of the first flowing medium tank 9 via a flowing medium outlet pipe. Similarly, the flowing medium inlet of the secondary condenser 5 is connected with the outlet of the second flowing medium box 10 through a flowing medium input pipe, and the flowing medium outlet of the secondary condenser 5 is connected with the return port of the second flowing medium box 10 through a flowing medium output pipe. Valves are respectively arranged on a flowing medium inlet and a flowing medium inlet of the first-stage condenser 3, valves are respectively arranged on an output port and a return port of the first flowing medium tank 9, similarly, valves are respectively arranged on a flowing medium inlet and a flowing medium inlet of the second-stage condenser 5, and valves are respectively arranged on an output port and a return port of the second flowing medium tank 10.
As shown in fig. 1, the buffer tank 6 is provided with an exhaust pipe 61, and the exhaust pipe 61 is provided with a valve for controlling opening and closing of the exhaust pipe. The valve of the exhaust pipe 61 is opened, and the air pressure balance between the buffer tank 6 and the sealing system and the outside can be adjusted.
Example 2
Based on the specific implementation of the first embodiment, the first improvement of the present embodiment is that the number of the receiving tanks 4 is two, and the first receiving tank 41 and the second receiving tank 42 are respectively referred to fig. 2. Wherein the first receiving tank 41 and the second receiving tank 42 are connected in parallel. The sealed piping to which the outlet 3b of the primary condenser is connected forms two branches that are connected to the inlet of the first receiver tank 41 and the inlet of the second receiver tank 42, respectively. The sealed piping to which the inlet 5a of the secondary condenser is connected forms two branches connecting the outlet of the first receiver tank 41 and the outlet of the second receiver tank 42, respectively. The inlet and outlet of the first receiving tank 41 and the inlet and outlet of the second receiving tank 42 are provided with valves for controlling the opening and closing of the pipes. Through adjusting the valve, can switch in a flexible way and collect the material in arbitrary receiving tank. Each receiving tank has a drain. In other embodiments, the number of receiving tanks 4 may also be three or more.
Example 3
Based on the specific implementation manner of the first embodiment, the improvement of the first embodiment is that the flowing medium input pipe of the primary condenser 3 is communicated with the flowing medium input pipe of the secondary condenser 5 through a first grafting pipeline 13a, and a valve for controlling the opening and closing of the pipeline is arranged on the first grafting pipeline 13 a; the flowing medium output pipe of the first-stage condenser 3 is communicated with the flowing medium output pipe of the second-stage condenser 5 through a second grafting pipeline 13b, and a valve for controlling the opening and closing of the pipeline is arranged on the second grafting pipeline 13 b. The flowing media of the first-stage condenser 3 and the second-stage condenser 5 can be flexibly switched according to requirements, so that the control temperature switching of the two condensers is realized. For example, when the valve of the first and second branch lines 13a, 13b is closed, the primary condenser 3 and the first flowing medium tank 9 form a flowing medium loop, the secondary condenser 5 and the second flowing medium tank 10 form a flowing medium loop, and the two flowing medium loops are independent and mutually interfere. When the valves of the output port and the return port of the second flowing medium tank 10 are closed and the valves of the first grafting pipeline 13a and the second grafting pipeline 13b are opened, the flowing medium loop of the second-stage condenser 5 and the flowing medium loop of the second flowing medium tank 10 are disconnected, and the second-stage condenser 5 and the first flowing medium tank 9 form a flowing medium loop.
In summary, the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A high melting point compound distillation apparatus, comprising: the system comprises a reaction kettle, a rising pipe, a primary condenser, a receiving tank, a secondary condenser, a buffer tank and a vacuum machine; wherein,
a steam outlet of the reaction kettle is connected with a first end of the rising pipe, a second end of the rising pipe is connected with an inlet of the first-stage condenser, an outlet of the first-stage condenser is connected with an inlet of the receiving tank through a sealing pipeline, an outlet of the receiving tank is connected with an inlet of the second-stage condenser through a sealing pipeline, an outlet of the second-stage condenser is connected with an inlet of the buffer tank through a sealing pipeline, and an outlet of the buffer tank is connected with the vacuum machine; the reaction kettle, the rising pipe, the primary condenser, the receiving tank, the secondary condenser and the buffer tank are sequentially connected to form a sealing system;
the rising pipe is used for guiding steam in the reaction kettle to the primary condenser;
the primary condenser is used for cooling the passing steam;
the receiving tank is used for receiving the material cooled and supplemented by the primary condenser;
the secondary condenser is used for performing secondary complement on steam discharged from the outlet of the receiving tank;
the buffer tank is used for providing a buffer space between the outlet of the secondary condenser and the vacuum machine;
the vacuum machine is used for vacuumizing the sealed system, so that steam in the reaction kettle forms airflow which sequentially passes through the rising pipe, the primary condenser, the receiving tank, the secondary condenser and the buffer tank;
the rising pipe and each sealed pipeline are provided with heating modules which are used for preheating the pipeline until the temperature of the pipeline is higher than the melting point of the product.
2. A refractory compound distilling apparatus as defined in claim 1 wherein the heating module includes a pipe jacket on the rising pipe and each of the sealed pipes, the pipe jacket being fillable with a heated flowing medium.
3. The apparatus for distilling a high melting point compound according to claim 1, wherein the steam outlet of the reaction vessel is located at the top of the reaction vessel and is opened upward; the rising pipe is vertically arranged, the first end faces downwards, and the second end faces upwards.
4. The high-melting point compound distillation apparatus according to claim 1, wherein a sight glass is installed on the sealed piping between the outlet of the primary condenser and the inlet of the receiver tank.
5. The high-melting-point compound distillation apparatus of claim 1, wherein the receiving tank is provided with a discharge port.
6. The high-melting-point compound distillation apparatus according to claim 1, wherein the number of the receiving tanks is two, that is, a first receiving tank and a second receiving tank; the first receiving tank and the second receiving tank are connected in parallel; the sealed pipeline connected with the outlet of the primary condenser forms two branches which are respectively connected with the inlet of the first receiving tank and the inlet of the second receiving tank; and the sealed pipeline connected with the inlet of the secondary condenser forms two branches which are respectively connected with the outlet of the first receiving tank and the outlet of the second receiving tank.
7. The high-melting point compound distillation apparatus of claim 5, wherein the discharge port has a heating device.
8. The apparatus for distilling a high melting point compound according to claim 1, wherein a first temperature gauge and a first pressure gauge are installed between the second end of the rising pipe and the inlet of the primary condenser; a second thermometer and a second pressure gauge are arranged at the outlet of the primary condenser; and a third temperature gauge and a third pressure gauge are installed at the inlet of the secondary condenser.
9. The high melting point compound distillation apparatus as claimed in claim 1, wherein the flowing medium input pipe of the primary condenser is communicated with the flowing medium input pipe of the secondary condenser through a first grafting pipe, and a valve for controlling the opening and closing of the pipeline is arranged on the first grafting pipe; and the flowing medium output pipe of the primary condenser is communicated with the flowing medium output pipe of the secondary condenser through a second grafting pipeline, and a valve for controlling the pipeline to be opened and closed is arranged on the second grafting pipeline.
10. The apparatus for distilling a high melting point compound according to claim 1, wherein the buffer tank is provided with an exhaust pipe, and the exhaust pipe is provided with a valve for controlling opening and closing of the exhaust pipe.
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| Application Number | Priority Date | Filing Date | Title |
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