Filtering and crystallizing integrated device

Abstract

The utility model relates to the technical field of chemical analysis and purification, and discloses a filtering and crystallizing integrated device. The bottom end of the filtering funnel is connected with the top end of the crystallization kettle in a sealing manner, and a filtrate outlet in the bottom end of the filtering funnel is communicated with a crystallization cavity of the crystallization kettle; filtering and crystallizing of materials are integrated into the same device, so that the materials are directly crystallized after being filtered, the intermediate transfer process of the materials between a filtering device and a crystallizing device is omitted, the transfer cost is reduced, and the materials are prevented from being polluted in the transfer process.

Description

Technical Field

[0001] This application relates to the technical field of chemical analysis and purification, and particularly to a filtering and crystallization integrated device. Background Art

[0002] In the chemical analysis and purification technology of materials, effective solid-liquid separation can be achieved through filtration to filter out impurities and purify the materials. For some materials, the required purity cannot be achieved only by filtration. At this time, crystallization can be used to further improve the purity of the materials. When performing filtration and crystallization, after the materials are filtered at the filtration device and then transported to the crystallization device for crystallization, problems will occur: the materials may be contaminated during the transportation process, thereby increasing the subsequent processing procedures of the materials. Utility Model Content

[0003] This application aims to solve at least one of the technical problems existing in the prior art. For this reason, the main purpose of this application is to propose a filtering and crystallization integrated device, aiming to solve the technical problem that the materials are easily contaminated during the process of being transported from the filtration device to the crystallization device.

[0004] To achieve the above purpose, this application proposes a filtering and crystallization integrated device, including:

[0005] A crystallization kettle; and

[0006] A filtering funnel, the bottom end of the filtering funnel is hermetically connected to the top end of the crystallization kettle, and the filtrate outlet at the bottom end of the filtering funnel communicates with the crystallization cavity of the crystallization kettle;

[0007] Wherein, the filtering funnel is provided with a first interlayer for heating circulation, and the crystallization kettle is provided with a second interlayer for cooling circulation.

[0008] Optionally, the filtering funnel is of a double-layer jacket structure; the bottom end and the top end of the outer periphery of the filtering funnel are respectively provided with a first liquid inlet and a first liquid outlet; both the first liquid inlet and the first liquid outlet communicate with the first interlayer and are both used for externally connecting a circulating heat source.

[0009] Optionally, the crystallization kettle includes:

[0010] A kettle body, the kettle body is of a double-layer jacket structure, and the second interlayer is located in the kettle body;

[0011] A kettle cover, the kettle cover is installed at the top opening of the kettle body, and the kettle cover and the kettle body enclose the crystallization cavity; the filtering funnel is hermetically connected to the kettle cover.

[0012] Optionally, the bottom end and the top end of the outer periphery of the kettle body are respectively provided with a second liquid inlet and a second liquid outlet; both the second liquid inlet and the second liquid outlet communicate with the second interlayer and are both used for externally connecting a circulating coolant.

[0013] Optionally, the filtrate outlet is located in the crystallization chamber; the integrated filtration and crystallization device further includes:

[0014] A material distributing member, which is connected to the filtrate outlet and has a plurality of material distributing ports extending towards the inner wall of the crystallization chamber.

[0015] Optionally, the integrated filtration and crystallization device further includes:

[0016] A fixing frame, which fixes the crystallization kettle and the filtration funnel.

[0017] Optionally, the kettle cover is provided with a thermometer hole communicating with the crystallization chamber; the integrated filtration and crystallization device further includes:

[0018] A thermometer, which is installed in the thermometer hole and extends into the crystallization chamber.

[0019] Optionally, the kettle cover is provided with an air extraction port and an air release port communicating with the crystallization chamber; the air extraction port is used to connect to a vacuum pump, and the air release port is used to connect to an air release switch.

[0020] Optionally, the bottom outlet of the crystallization kettle is connected to a discharging valve.

[0021] Optionally, a heat insulation sealing gasket is provided between the kettle body and the kettle cover.

[0022] In the technical solution of the present application, the filtration and crystallization of materials are integrated into the same device, so that the materials can be directly crystallized after filtration, eliminating the intermediate transfer process between the filtration device and the crystallization device, which is beneficial to reducing the transfer cost and preventing the materials from being contaminated during the transfer process. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0024] Figure 1 It is a front view schematic diagram of the integrated filtration and crystallization device provided by the present application;

[0025] Figure 2 It is a partial front view schematic diagram of the deformed structure of the integrated filtration and crystallization device provided by the present application.

[0026] Explanation of the reference numerals in the drawings:

[0027] 10. Integrated filtration and crystallization device;

[0028] 11. Crystallization kettle; 111. Crystallization chamber; 112. Second interlayer; 113. Kettle body; 1131. Second liquid inlet; 1132. Second liquid outlet; 114. Kettle cover; 1141. Air extraction port; 1142. Air release port;

[0029] 12. Filter funnel; 121. Filtrate outlet; 122. First interlayer; 123. First liquid inlet; 124. First liquid outlet;

[0030] 13. Material distribution part; 131. Material distribution port;

[0031] 14. Fixed bracket;

[0032] 15. Thermometer;

[0033] 16. Sealing ring;

[0034] 17. Discharge valve;

[0035] 18. Heat insulation gasket. Detailed implementation manners

[0036] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0037] Based on the technical problem that materials are easily contaminated during the process of being transported from a filtration device to a crystallization device, the present application provides an integrated filtration and crystallization device, which integrates the filtration and crystallization of materials in the same device, so that the materials can be directly crystallized after filtration, eliminating the intermediate transfer process between the filtration device and the crystallization device, which is beneficial to reducing the transfer cost and preventing the materials from being contaminated during the transfer process; for specific details, please refer to the following embodiments.

[0038] Please refer to Figure 1 , in an embodiment of the present application, an integrated filtration and crystallization device 10 is provided, including a crystallization kettle 11 and a filter funnel 12. The bottom end of the filter funnel 12 is hermetically connected to the top end of the crystallization kettle 11, and the filtrate outlet 121 at the bottom end of the filter funnel 12 communicates with the crystallization chamber 111 of the crystallization kettle 11.

[0039] Specifically, the integrated filtration and crystallization device 10 provided in this application integrates the filtration and crystallization of materials in the same device, enabling the materials to directly crystallize after filtration, eliminating the intermediate transfer process between the filtration device and the crystallization device, which is conducive to reducing transfer costs and preventing the materials from being contaminated during the transfer process. The integrated filtration and crystallization device 10 includes a filtration funnel 12 for filtering materials and a crystallization kettle 11 (also known as a receiving kettle) for the crystallization precipitation of materials. The bottom end of the filtration funnel 12 is hermetically connected to the top end of the crystallization kettle 11 to prevent air leakage. Moreover, the filtrate outlet 121 at the bottom end of the filtration funnel 12 communicates with the crystallization chamber 111 of the crystallization kettle 11, enabling the filtrate after the materials are filtered to directly flow into the crystallization chamber 111 through the filtrate outlet 121, eliminating the process of transporting the materials, which is conducive to improving the purification efficiency of the materials and effectively preventing the materials from being contaminated during the transportation process. The filtration funnel 12 is funnel-shaped, with a large top and a small bottom, and can be conical, facilitating the downward flow of materials under the action of gravity to achieve filtration. Before using the filtration funnel 12, a filter medium such as filter paper can be placed in the filtration funnel 12, and the impurities in the materials adhere to the filter paper, and the material solution flows through the filter paper into the crystallization chamber 111. The bottom end of the filtration funnel 12 is connected to the top end of the crystallization kettle 11, and can be connected by a sealed jacket, ground joint or flange to ensure the tightness of the crystallization chamber 111; in order to enhance the connection tightness, the form of a flange combined with a gasket or sealing ring 16 can be adopted.

[0040] Please continue to refer to Figure 1 , in another embodiment, the filtration funnel 12 is provided with a first interlayer 122 for heating circulation. The filtration funnel 12 has a first interlayer 122 that can be used for heating circulation, enabling the filtration funnel 12 to be externally connected to a circulating heat source. By circulating the heat source in the first interlayer 122, heating or heat preservation of the materials can be achieved during the material filtration process, which is conducive to improving the filtration efficiency. The specific principle is as follows: Generally, the materials are pre-dissolved solutions in a hot dissolution manner. During the material filtration, as more and more filtered solution accumulates, more and more impurities will adhere to the filter paper, resulting in a slower and slower filtration rate. And as time increases, the temperature of the solution will also decrease. When the temperature is too low, crystals may directly precipitate in the solution in the filtration funnel 12, thereby reducing the filtration efficiency and affecting the filtration effect; at this time, the heat source in the first interlayer 122 of the filtration funnel 12 plays a role in heating or heat preservation of the materials, which can well solve this problem.

[0041] Please continue to refer to Figure 1, Further, the filtering funnel 12 has a double-layer jacket structure, that is, the filtering funnel 12 is a double-layer structure with a sandwich layer, and the first sandwich layer 122 is located between the inner and outer layers or shells of the filtering funnel 12. The bottom end and the top end of the outer periphery of the filtering funnel 12 are respectively provided with a first liquid inlet 123 and a first liquid outlet 124; both the first liquid inlet 123 and the first liquid outlet 124 are communicated with the first sandwich layer 122 and are both used for externally connecting a circulating heat source. The circulating heat source can be a high-temperature circulating machine, and the high-temperature circulating machine is connected to the first liquid inlet 123 and the first liquid outlet 124, inputs the heat source from the first liquid inlet 123 into the first sandwich layer 122, and flows out from the first liquid outlet 124, so as to realize the circulation of the heat source in the first sandwich layer 122 and achieve the continuous heat preservation or heating effect on the material. Since the first liquid inlet 123 and the first liquid outlet 124 are respectively located at the bottom end and the top end of the outer periphery of the filtering funnel 12, that is, the installation height of the first liquid inlet 123 is lower than the installation height of the first liquid outlet 124 during use, the circulation direction of the heat source in the first sandwich layer 122 is opposite to the flow direction of the material in the filtering funnel 12, which is beneficial to improving the heating or heat preservation effect.

[0042] Please continue to refer to Figure 1 , In yet another embodiment, the crystallization kettle 11 is provided with a second sandwich layer 112 for cooling circulation. The crystallization kettle 11 has a second sandwich layer 112 for cooling circulation, so that the crystallization kettle 11 can be externally connected with a circulating cold source, and by circulating the cold source in the second sandwich layer 112, the cooling and temperature reduction during the crystallization process of the material can be realized, which is beneficial to quickly reducing the temperature of the filtered material and crystallizing and precipitating, and improving the crystallization efficiency.

[0043] Please continue to refer to Figure 1, Further, the crystallization kettle 11 includes a kettle body 113 and a kettle lid 114. The kettle lid 114 is installed at the top opening of the kettle body 113. The kettle lid 114 and the kettle body 113 enclose a crystallization chamber 111. The filtration funnel 12 is hermetically connected to the kettle lid 114. Designing the crystallization kettle 11 by splitting it into the kettle body 113 and the kettle lid 114 is beneficial to the production, manufacturing, and assembly of the crystallization kettle 11. The kettle lid 114 and the kettle body 113 can be connected by a flange. The kettle body 113 is a double-layer jacket structure. The second interlayer 112 is located in the kettle body 113, that is, the kettle body 113 is a double-layer structure with an interlayer. The second interlayer 112 is located between the inner and outer layers or shells of the kettle body 113. Since the filtration funnel 12 is hermetically connected to the kettle lid 114 and the kettle lid 114 is located at the top of the kettle body 113, there is a kettle lid 114 between the kettle body 113 and the filtration funnel 12. The kettle lid 114 has a separating effect. Specifically, when circulating a heat source in the first interlayer 122 of the filtration funnel 12 and circulating a cold source in the second interlayer 112 of the kettle body 113, a temperature difference is formed between the filtration funnel 12 and the kettle body 113. Using the kettle lid 114 to separate the filtration funnel 12 and the kettle body 113 is beneficial to preventing or reducing the heat exchange between the filtration funnel 12 and the kettle body 113, and thus is beneficial to reducing energy consumption. To further improve the heat insulation effect of the kettle lid 114, a heat insulation gasket 18 can be provided between the kettle body 113 and the kettle lid 114. By providing the heat insulation gasket 18, it can not only effectively insulate the kettle body 113 and the kettle lid 114, but also improve the sealing effect of the kettle lid 114 on the kettle body 113, ensuring the tightness of the crystallization chamber 111.

[0044] Please continue to refer to Figure 1 , Further, a second liquid inlet 1131 and a second liquid outlet 1132 can be respectively provided at the bottom end and the top end of the outer periphery of the kettle body 113; both the second liquid inlet 1131 and the second liquid outlet 1132 communicate with the second interlayer 112 and are both used for externally connecting a circulating coolant. The circulation of the coolant can be driven by a coolant circulation machine. Connect the coolant circulation machine to the second liquid inlet 1131 and the second liquid outlet 1132. Input the cooling source from the second liquid inlet 1131 into the second interlayer 112 and flow out from the second liquid outlet 1132. Through the coolant circulation machine, the circulation of the coolant in the second interlayer 112 is realized, achieving a continuous cooling effect on the material crystallization process, accelerating heat dissipation, increasing the crystallization rate, and reducing the crystallization waiting time. Since the second liquid inlet 1131 and the second liquid outlet 1132 are respectively located at the bottom end and the top end of the outer periphery of the kettle body 113, that is, the installation height of the second liquid inlet 1131 is lower than the installation height of the second liquid outlet 1132 during use, the circulation direction of the coolant in the second interlayer 112 is opposite to the falling direction of the material in the kettle body 113, which is beneficial to improving the cooling efficiency of the material.

[0045] Please refer to Figure 1 and Figure 2, in one embodiment, the filtrate outlet 121 is located within the crystallization chamber 111; the integrated filtration and crystallization device 10 further includes a material distributing member 13. The material distributing member 13 is connected to the filtrate outlet 121 and has a dispersing effect on the filtrate flowing out of the filtrate outlet 121. The material distributing member 13 has a plurality of material distributing ports 131 extending towards the inner wall of the crystallization chamber 111. The number of the material distributing ports 131 can be 3, 4, 5 or more, specifically set according to the shape of the crystallization chamber 111, so that the filtrate flows towards the inner wall of the crystallization chamber 111 through the plurality of material distributing ports 131 and flows along the inner wall of the crystallization chamber 111. Since the coolant circulates in the second interlayer 112 of the kettle body 113, the filtrate is in direct contact with the inner wall of the kettle body 113, which is conducive to quickly cooling down the filtrate, promoting the crystallization precipitation of the filtrate and improving the crystallization efficiency.

[0046] Please continue to refer to Figure 1 , in one embodiment, the integrated filtration and crystallization device 10 further includes a fixing frame 14. The fixing frame 14 fixes the crystallization kettle 11 and the filtration funnel 12, which is conducive to enhancing the stability of the positions of the filtration funnel 12 and the crystallization kettle 11 and the connection reliability. The fixing frame can adopt a metal frame.

[0047] Please continue to refer to Figure 1 , in one embodiment, the kettle cover 114 is provided with a thermometer hole communicating with the crystallization chamber 111; the integrated filtration and crystallization device 10 further includes a thermometer 15. The thermometer 15 is installed in the thermometer hole and extends into the crystallization chamber 111. The temperature inside the kettle body 113 can be observed through the reading of the thermometer 15, which is convenient for the operator to control the crystallization precipitation process of the material in the crystallization chamber 111, ensure that the temperature meets the crystallization temperature of the material, and guarantee the crystallization efficiency.

[0048] Please continue to refer to Figure 1 , in one embodiment, the kettle cover 114 is provided with an air extraction port 1141 and an air release port 1142 communicating with the crystallization chamber 111; the air extraction port 1141 is used to connect to a vacuum pump, and the air release port 1142 is used to connect to an air release switch. When the filtrate flows into the crystallization chamber 111, the gas in the crystallization chamber 111 needs to be discharged to prevent it from affecting the entry of the filtrate into the crystallization chamber 111. The vacuum pump is connected to the suction port. When filtering the material, the gas in the crystallization chamber 111 is sucked to achieve the effect of vacuum filtration of the material and improve the material filtration efficiency. The air release port 1142 is connected to the air release switch. When the mixture of crystals and liquid in the kettle body 113 after the material crystallizes is discharged from the bottom outlet, the air release switch is opened to make the inside and outside of the crystallization chamber 111 communicate, which is conducive to the quick discharge of the mixture of crystals and liquid. A discharge valve 17 can be connected to the bottom outlet of the crystallization kettle 11, and the discharge of the mixture of crystals and liquid is controlled through the discharge valve 17 to improve the convenience of use.

[0049] Please continue to refer to Figure 1, the specific working principle of the integrated filtration and crystallization device 10 provided in this application is as follows: Before working, first ensure that all connections of the integrated filtration and crystallization device 10 are stable and have good tightness. Close the air extraction port 1141, the air release switch, and the discharging valve 17; place a filter paper in the filtration funnel 12. Subsequently, turn on the high-temperature circulator to provide heat source to the first interlayer 122 of the filtration funnel 12; turn on the coolant circulator to provide coolant to the second interlayer 112 of the kettle body 113; observe the temperature inside the kettle body 113 through the thermometer 15, and at the same time observe the temperature display value on the high-temperature circulator; when it is found that the temperature inside the kettle body 113 reaches the set temperature and the temperature display value on the high-temperature circulator reaches the set value, open the valve of the air extraction port 1141 and turn on the air extraction switch of the vacuum pump connected to the air extraction port 1141. At this time, the pre-dissolved solution (i.e., the material) can be added into the filtration funnel 12. After adding the solution into the filtration, the filtered solution will enter the kettle body 113 through the material distribution part 13 at the filtrate outlet 121 of the filtration funnel 12. The multiple material distribution ports 131 of the material distribution part 13 will guide the filtrate to flow down along the inner wall of the kettle body 113 as much as possible. At this time, the coolant in the second interlayer 112 of the kettle body 113 will quickly cool down the filtered solution, so that crystals will precipitate rapidly. When the filtration is completed, close the valve of the air extraction port 1141 and turn on the air release switch, and then turn off the vacuum pump; in order to ensure that all crystals can precipitate, you can wait for a period of time and then open the discharging valve 17 to make the mixture of crystals and liquid in the kettle body 113 flow out together, and then crystals can be obtained through simple filtration.

[0050] This application provides an integrated filtration and crystallization device, which integrates the filtration and crystallization of materials in the same device, enabling the materials to directly crystallize after filtration, eliminating the intermediate transfer process between the filtration device and the crystallization device, which is beneficial to reducing the transfer cost and preventing the materials from being contaminated during the transfer process.

[0051] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of this application, then such directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, then the directional indications will also change accordingly.

[0052] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, if "and / or", "and / or", or "and / or" appear throughout the text, their meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, scenario B, or the scenario where both A and B are satisfied simultaneously.

[0053] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0054] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0055] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made by using the description of the specification and drawings of the present application under the application concept of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A filtering and crystallizing integrated device, characterized in that: include: Crystallization kettle; as well as A filter funnel, wherein the bottom end of the filter funnel is sealed and connected to the top end of the crystallization kettle, and the filtrate outlet at the bottom end of the filter funnel is connected to the crystallization chamber of the crystallization kettle; Wherein, the filter funnel is provided with a first interlayer for heating cycle, and the crystallization kettle is provided with a second interlayer for cooling cycle; The crystallization kettle comprises: A kettle body, wherein the second interlayer is located on the kettle body; A kettle cover, the kettle cover is installed at the top opening of the kettle body, and the kettle cover and the kettle body enclose the crystallization chamber; the filter funnel is sealed and connected to the kettle cover; a heat insulating sealing pad is provided between the kettle body and the kettle cover to separate the kettle body and the kettle cover; The bottom and top ends of the outer periphery of the kettle body are respectively provided with a second liquid inlet and a second liquid outlet; the second liquid inlet and the second liquid outlet are both connected to the second interlayer; The filtrate outlet is located in the crystallization chamber; the filtration and crystallization integrated device also includes: A material dividing piece is connected to the filtrate outlet, and the material dividing piece has a plurality of material dividing openings extending toward the inner wall of the crystallization chamber.

2. The integrated filtering and crystallization device according to claim 1, characterized in that: The filter funnel is a double-layer jacket structure; the bottom and top of the outer periphery of the filter funnel are respectively provided with a first liquid inlet and a first liquid outlet; the first liquid inlet and the first liquid outlet are both connected to the first interlayer and are both used for external circulating heat source.

3. The integrated filtering and crystallization device according to claim 1, characterized in that: The kettle body is a double-layer jacket structure.

4. The integrated filtering and crystallization device according to claim 3, characterized in that: The second liquid inlet and the second liquid outlet are both used for externally connecting circulating cooling liquid.

5. The integrated filtering and crystallization device according to claim 1, characterized in that: The integrated filtering and crystallization device further comprises: A fixed frame is used to fix the crystallization kettle and the filter funnel.

6. The integrated filtering and crystallization device according to claim 3, characterized in that: The kettle cover is provided with a thermometer hole connected to the crystallization chamber; the integrated filtering and crystallization device also includes: A thermometer is installed in the thermometer hole and extends into the crystallization chamber.

7. The integrated filtering and crystallization device according to claim 3, characterized in that: The kettle cover is provided with an air suction port and an air discharge port connected to the crystallization chamber; the air suction port is used to connect to a vacuum pump, and the air discharge port is used to connect to a discharge switch.

8. The integrated filtering and crystallization device according to claim 1, characterized in that: The bottom outlet of the crystallization kettle is connected to a discharge valve.

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