Chemical liquid material filtering system

Abstract

The utility model provides a chemical liquid material filtering system. The chemical liquid material filtering system comprises a reaction kettle, a filter, a receiving kettle, a conveying pipeline, a hot water tank and a circulating pump, wherein the hot water tank is used for containing a heating medium; the filter comprises an inner shell and an outer shell, the outer shell at least wraps the inner shell, and a jacket cavity is formed between the inner shell and the outer shell. The conveying pipeline comprises an inner pipeline and an outer pipeline, the outer pipeline wraps the inner pipeline, the two ends of the inner pipeline are exposed, and a jacketed pipe cavity is formed between the inner pipeline and the outer pipeline. The outlet of the reaction kettle is connected with the inner shell inlet of the filter. An inner shell outlet of the filter is connected with one end of an inner pipeline, and the other end of the inner pipeline is connected with a receiving kettle inlet. And the outlet of the hot water tank is connected with the jacket cavity and the jacket pipe cavity through the circulating pump, and then is connected to the inlet of the hot water tank through the jacket cavity and the jacket pipe cavity. According to the chemical liquid material filtering system, the filter and the conveying pipeline can be heated, so that the problems of solidification, crystallization and blockage are basically avoided when materials in the reaction kettle pass through the filter and the subsequent pipeline.

Description

Technical Field

[0001] The present application relates to the technical field of pharmaceutical and chemical filtering equipment, and in particular to a chemical liquid material filtering system. Background Art

[0002] In the pharmaceutical and chemical industry, the purification of process liquids is a key step to ensure that the final product meets high standards. This process usually involves removing impurities from the liquid by filtering to improve the purity of the liquid.

[0003] Pharmaceutical chemical products often require extremely fine chemical and physical properties to ensure their safety and effectiveness. Therefore, the production process requires extremely high purity of raw materials and intermediates. In many cases, these products tend to crystallize at low temperatures, which requires maintaining a certain temperature during the filtration process to prevent the material from solidifying prematurely.

[0004] At present, the commonly used filtration technologies in industry include pressure-driven filtration, vacuum filtration and centrifugal filtration. Pressure-driven filtration uses the external pressure difference to push the liquid through the filter medium to achieve solid-liquid separation. Vacuum filtration forms a negative pressure on the other side of the filter medium, allowing the liquid to pass through the filter medium while the solid particles are retained. Centrifugal filtration uses centrifugal force to separate solid particles from the liquid.

[0005] Although existing filtration technologies have been successful in many applications, they still have some limitations when dealing with low-temperature, easily solidified materials. The main problem is the crystallization of materials during the filtration process. When the temperature of the material drops below its solidification point, solid crystals will form on the surface of the pipe or filter, which will gradually accumulate and eventually cause blockage.

[0006] Since existing filtration systems may not have adequate temperature control capabilities, they are unable to maintain the required temperature of the material throughout the filtration process. Moreover, once blockage occurs, it is usually very difficult to remove these solid crystals, requiring production to be stopped for cleaning, which not only reduces production efficiency but may also result in material waste. Utility Model Content

[0007] The purpose of the embodiment of the present application is to provide a chemical liquid material filtration system, which can heat the filter and the conveying pipeline so that the material in the reactor will not produce solid crystals when passing through the filter and subsequent pipelines during filtration, and there will be no clogging problems, which is conducive to improving production efficiency.

[0008] The present application provides a chemical liquid material filtration system, which includes a reaction kettle, a filter, a receiving kettle, a delivery pipeline, a hot water tank and a circulation pump: the hot water tank is used to contain a heating medium.

[0009] Wherein, the filter includes an inner shell and an outer shell, the outer shell at least wraps the inner shell, a jacket cavity is formed between the inner shell and the outer shell, and the jacket cavity is provided with an inlet and an outlet. The delivery pipeline includes an inner pipeline and an outer pipeline, the outer pipeline wraps the inner pipeline and exposes both ends of the inner pipeline, a jacket cavity is formed between the inner pipeline and the outer pipeline, and the jacket cavity is provided with an inlet and an outlet. The outlet of the reactor is connected to the inlet of the inner shell of the filter. The outlet of the inner shell of the filter is connected to one end of the inner pipeline, and the other end of the inner pipeline is connected to the inlet of the receiving kettle. The outlet of the hot water tank is connected to the jacket cavity and the jacket cavity through a circulating pump, and then the jacket cavity and the jacket cavity are connected to the inlet of the hot water tank.

[0010] In an implementable solution, the outlet of the hot water tank is connected to the inlet of the jacket cavity through a circulation pump, the outlet of the jacket cavity is connected to the inlet of the jacket tube cavity, and the outlet of the jacket tube cavity is connected to the inlet of the hot water tank.

[0011] In an practicable solution, the chemical liquid material filtering system includes a temperature sensor and a controller. The probe of the temperature sensor extends into the jacket tube cavity and is close to one end of the receiving kettle. The controller is electrically connected to the circulation pump and the temperature sensor.

[0012] In an implementable solution, a heating device for heating is provided in the hot water tank, and the heating device is electrically connected to the controller.

[0013] In an implementable solution, the chemical liquid material filtering system includes an electric control valve, which is arranged on a connecting pipeline between a reactor outlet and an inner shell inlet of the filter, and the electric control valve is electrically connected to a controller.

[0014] In an implementable solution, the chemical liquid material filtration system further includes a flexible heating jacket that is heated by power supply, and the flexible heating jacket is wrapped around the outer wall of the outer pipe of the conveying pipe.

[0015] In an implementable solution, the filter of the chemical liquid material filtration system further includes a heating rod, which is placed in the jacket cavity.

[0016] Compared with the prior art, the beneficial effects of this application include at least:

[0017] When the chemical liquid material filtration system provided by the present application is used, before the material in the reactor passes through the filter, the circulation pump is first turned on to make the medium of the heating pot in the hot water tank flow through the jacket cavity and the jacket tube cavity, and then return to the hot water tank, and so on and so forth, so that the temperature in the inner shell of the filter and the temperature in the inner pipe of the delivery pipe are raised to be substantially equal to the temperature of the material system in the reactor, and then the reaction liquid in the reactor is passed through the filter and the inner pipe of the delivery pipe to reach the receiving kettle for storage. During the filtering process, the circulation pump can also be kept working to maintain the temperature of the inner shell of the filter and the inner pipe of the delivery pipe.

[0018] Since the temperature of the inner shell of the filter and the inner pipe of the conveying pipeline is basically the same as the temperature of the material system in the reactor and is above the solidification point of the material, the material will basically not produce solid crystals when passing through the heated pipe or filter, and there will be no blockage problem, which reduces the subsequent maintenance cost, is conducive to improving production efficiency, and can also reduce the waste of materials caused by crystallization. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the composition structure of a chemical liquid material filtration system according to an embodiment of the present application;

[0021] Figure 2 It is a schematic diagram of the structure of a filter according to an embodiment of the present application;

[0022] Figure 3 It is a structural schematic diagram of a conveying pipeline according to an embodiment of the present application;

[0023] Figure 4 It is a schematic diagram of the composition structure of another chemical liquid material filtering system according to an embodiment of the present application;

[0024] Figure 5 It is a structural schematic diagram of a filter with a heating rod according to an embodiment of the present application;

[0025] Figure 6 It is a schematic structural diagram of a delivery pipeline with a flexible heating jacket according to an embodiment of the present application.

[0026] In the figure: 1. Reactor; 2. Filter; 21. Inner shell; 22. Outer shell; 23. Jacket cavity; 24. Heating rod; 3. Receiving kettle; 4. Delivery pipeline; 41. Inner pipeline; 42. Outer pipeline; 43. Jacket cavity; 5. Hot water tank; 51. Heating device; 6. Circulating pump; 7. Temperature sensor; 8. Controller; 9. Electric control valve; 10. Flexible heating sleeve. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a chemical liquid material filtration system, including a reaction kettle 1, a filter 2, a receiving kettle 3, a delivery pipeline 4, a hot water tank 5 and a circulation pump 6: the hot water tank 5 is used to contain a heating medium.

[0030] The filter 2 includes an inner shell 21 and an outer shell 22, the outer shell 22 at least wraps the inner shell 21, a jacket cavity 23 is formed between the inner shell 21 and the outer shell 22, and the jacket cavity 23 is provided with an inlet and an outlet. The delivery pipeline 4 includes an inner pipeline 41 and an outer pipeline 42, the outer pipeline 42 wraps the inner pipeline 41 and exposes both ends of the inner pipeline 41, a jacket cavity 43 is formed between the inner pipeline 41 and the outer pipeline 42, and the jacket cavity 43 is provided with an inlet and an outlet.

[0031] The outlet of the reactor 1 is connected to the inlet of the inner shell 21 of the filter 2. The outlet of the inner shell 21 of the filter 2 is connected to one end of the inner pipe 41, and the other end of the inner pipe 41 is connected to the inlet of the receiving reactor 3. The outlet of the hot water tank 5 is connected to the jacket cavity 23 and the jacket tube cavity 43 through the circulation pump 6, and then the jacket cavity 23 and the jacket tube cavity 43 are connected to the inlet of the hot water tank 5.

[0032] It should be noted that the reactor 1 generally refers to a container for chemical reactions, which can withstand high temperature, high pressure and corrosive environment. For example, in the reactor, raw materials are mixed and reacted by heating, cooling, stirring and adding reactants to generate the desired compounds or products. The inner shell 21 and internal structure of the filter 2 can achieve a filtering effect similar to that of a titanium rod filter, or it can be other types of filters, which are not listed here one by one. The receiving kettle 3 is generally used to collect and temporarily store reaction products or filtered liquid containers. The receiving kettle can receive liquids transferred from the reactor or filter, which is convenient for subsequent processing, storage or packaging.

[0033] When the chemical liquid material filtration system provided in the present application is used, before the material in the reactor 1 passes through the filter 2, the circulation pump 6 is first turned on to make the medium of the heating pot in the hot water tank 5 flow through the jacket cavity 23 and the jacket tube cavity 43, and then return to the hot water tank 5, and so on and so forth, so that the temperature in the inner shell 21 of the filter 2 and the temperature in the inner pipe 41 of the delivery pipe 4 are raised to be substantially equal to the temperature of the material system in the reactor 1, and then the reaction liquid in the reactor 1 is passed through the filter 2 and the inner pipe 41 of the delivery pipe 4 to reach the receiving kettle 3 for storage. During the filtering process, the circulation pump 6 can also be kept working to maintain the temperature of the inner shell 21 of the filter 2 and the inner pipe 41 of the delivery pipe 4.

[0034] Since the temperature in the inner shell 21 of the filter 2 and the inner pipe 41 of the conveying pipe 4 is basically consistent with the temperature of the material system in the reactor 1 and is above the solidification point of the material, the material will basically not produce solid crystals when passing through the heated pipe or filter, and there will be no clogging problem, which reduces the subsequent maintenance cost, is conducive to improving production efficiency, and can also reduce the waste of materials caused by crystallization.

[0035] In this embodiment, the inlet of the jacket cavity 23 and the inlet of the jacket tube cavity 43 can be connected to the outlet of the circulation pump 6 respectively, and the outlet of the jacket cavity 23 and the outlet of the jacket tube cavity 43 can also be connected to the inlet of the hot water tank 5 respectively, which is equivalent to achieving heating through two independent cycles.

[0036] In this embodiment, if Figure 1 As shown, the outlet of the hot water tank 5 can also be connected to the inlet of the jacket cavity 23 through the circulation pump 6, the outlet of the jacket cavity 23 is connected to the inlet of the jacket tube cavity 43, and the outlet of the jacket tube cavity 43 is connected to the inlet of the hot water tank 5, so as to heat the delivery pipe 4 and the filter 2 through a large circulation pipeline.

[0037] In this embodiment, if Figure 4 As shown, the chemical liquid material filtering system may include a temperature sensor 7 and a controller 8 .

[0038] The probe of the temperature sensor 7 extends into the jacket tube cavity 43 and can be close to one end of the receiving kettle 3 , and the controller 8 is electrically connected to the circulation pump 6 and the temperature sensor 7 .

[0039] Since the end of the jacket tube cavity 43 close to the receiving kettle 3 is at the end of the inner pipe 41, when the temperature of the temperature sensor 7 reaches the expected temperature (basically equal to the temperature of the material system in the reactor 1) and remains stable, it basically means that the temperature of the filter 2 and the conveying pipeline 4 has reached the expected temperature, and the filtration process can be carried out at this time.

[0040] The temperature data collected by the temperature sensor 7 can be transmitted to the controller 8 in real time. When the controller 8 determines that the temperature of the temperature sensor 7 reaches the expected temperature, the circulation pump 6 can be stopped. When the temperature is lower than the expected temperature, the circulation pump 6 can be started.

[0041] In this embodiment, if Figure 4 As shown, a heating device 51 for heating can be provided in the hot water tank 5, and the heating device 51 is electrically connected to the controller 8. At the same time, a thermometer can also be provided in the hot water tank 5, and when the temperature in the hot water tank 5 is too low, the heating device 51 can be controlled by the controller to work.

[0042] In this embodiment, if Figure 4 As shown, the chemical liquid material filtering system may include an electric control valve 9, which is arranged on the connecting pipeline between the outlet of the reactor 1 and the inlet of the inner shell 21 of the filter 2, and the electric control valve 9 is electrically connected to the controller 8. The temperature data collected by the temperature sensor 7 can be transmitted to the controller 8 in real time. When the controller 8 determines that the temperature of the temperature sensor 7 reaches the expected temperature, the electric control valve 9 can be controlled to open to allow the filtering operation.

[0043] In this embodiment, if Figure 5 As shown, the chemical liquid material filtering system may also include a flexible heating jacket 10 that heats up by powering on, and the flexible heating jacket 10 is wrapped around the outer wall of the outer pipe 42 of the delivery pipe 4. Since the inner pipe 41 of the delivery pipe 4 may be relatively long and have a large heat dissipation area, the heating effect may be somewhat discounted. Therefore, wrapping the outer wall of the outer pipe 42 of the delivery pipe 4 with the flexible heating jacket 10 can play a role in heat preservation, so that the delivery pipe 4 can be better maintained within the desired temperature range.

[0044] For example, a silicone rubber heating sheet may be wrapped around the outer pipe 42 to form the flexible heating sleeve 10 .

[0045] In this embodiment, if Figure 5 As shown, the filter 2 of the chemical liquid material filtration system may also include a heating rod 24, which is placed in the jacket cavity 23. The medium is heated by the heating rod 24 to heat up to the target temperature more quickly. Compared with the conveying pipeline 4, the filter 2 has a larger volume. The heating medium is heated by passing through the jacket cavity 23 of its inner and outer shells. In some cases, the heating may be slow. The use of the heating rod 24 can speed up the heating of the filter 2, and can also heat the medium flowing out of the hot water tank 5, improve the heating efficiency, and thus improve the overall filtration efficiency.

[0046] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A chemical liquid material filtration system, characterized in that: It comprises a reaction kettle (1), a filter (2), a receiving kettle (3), a delivery pipeline (4), a hot water tank (5) and a circulation pump (6): the hot water tank (5) is used to contain a heating medium; The filter (2) comprises an inner shell (21) and an outer shell (22), wherein the outer shell (22) at least wraps the inner shell (21), a jacket cavity (23) is formed between the inner shell (21) and the outer shell (22), and the jacket cavity (23) is provided with an inlet and an outlet; The delivery pipeline (4) comprises an inner pipeline (41) and an outer pipeline (42), wherein the outer pipeline (42) wraps the inner pipeline (41) and exposes both ends of the inner pipeline (41), and a jacket lumen (43) is formed between the inner pipeline (41) and the outer pipeline (42), and the jacket lumen (43) is provided with an inlet and an outlet; The outlet of the reactor (1) is connected to the inlet of the inner shell (21) of the filter (2); The outlet of the inner shell (21) of the filter (2) is connected to one end of the inner pipe (41), and the other end of the inner pipe (41) is connected to the inlet of the receiving kettle (3); The outlet of the hot water tank (5) is connected to the jacket cavity (23) and the jacket tube cavity (43) through the circulation pump (6), and then connected to the inlet of the hot water tank (5) through the jacket cavity (23) and the jacket tube cavity (43).

2. The chemical liquid material filtration system according to claim 1, characterized in that: The outlet of the hot water tank (5) is connected to the inlet of the jacket chamber (23) through the circulation pump (6), the outlet of the jacket chamber (23) is connected to the inlet of the jacket tube chamber (43), and the outlet of the jacket tube chamber (43) is connected to the inlet of the hot water tank (5).

3. The chemical liquid material filtering system according to claim 2, characterized in that: The chemical liquid material filtering system comprises: A temperature sensor (7), wherein a probe of the temperature sensor (7) extends into the jacket tube cavity (43) and is close to one end of the receiving kettle (3); A controller (8) is electrically connected to the circulation pump (6) and the temperature sensor (7).

4. The chemical liquid material filtering system according to claim 3, characterized in that: A heating device (51) for heating is arranged in the hot water tank (5), and the heating device (51) is electrically connected to the controller (8).

5. The chemical liquid material filtering system according to claim 3, characterized in that: The chemical liquid material filtering system comprises an electric control valve (9) which is arranged on a connecting pipeline between the outlet of the reactor (1) and the inlet of the inner shell (21) of the filter (2), and the electric control valve (9) is electrically connected to the controller (8).

6. The chemical liquid material filtering system according to claim 1, characterized in that: It also comprises a flexible heating sleeve (10) which is heated by powering on, and the flexible heating sleeve (10) is wrapped around the outer wall of the outer pipe (42) of the conveying pipe (4).

7. The chemical liquid material filtering system according to claim 1, characterized in that: The filter (2) further comprises a heating rod (24), wherein the heating rod (24) is disposed in the jacket cavity (23).

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