A device for removing metallic particles from methyl ethyl carbonate product

Abstract

This utility model relates to a device for removing metal particles from methyl ethyl carbonate (MEC) products. The technical solution is as follows: the inlet of the MEC storage tank is connected to the MEC production unit via a pipeline and a first magnetic filter; the outlet is connected to a parallel shielded pump via a pipeline; the outlet is connected to a loading platform via a pipeline, a membrane filter, and a second magnetic filter; and the output is connected to the MEC storage tank via a circulation pipeline control valve and a circulation pipeline. The beneficial effects are: the first magnetic filter removes metal particles from the MEC; during loading, the MEC is filtered by the shielded pump and the membrane filter, effectively improving the quality of the loaded MEC and avoiding potential flammability and explosion risks; furthermore, closing the loading platform control valve and circulating the MEC to the lower side of the storage tank improves the product quality within the storage tank.

Description

Technical Field

[0001] This utility model relates to the field of impurity removal technology for methyl ethyl carbonate, and in particular to a device for removing metal particles from methyl ethyl carbonate products. Background Technology

[0002] Ethyl methyl carbonate (EMC) is an excellent solvent for lithium-ion battery electrolytes. It is a relatively new product developed as production of dimethyl carbonate and lithium-ion batteries has increased. Because it contains both methyl and ethyl groups, it combines the properties of both dimethyl carbonate and diethyl carbonate, and is also used as a solvent for specialty fragrances and intermediates. During storage, EMC must be kept in a sealed container in a cool, dry place, away from oxidizers and sources of ignition. Its hazard code is R10 (flammable).

[0003] However, currently, methyl ethyl carbonate is transported to storage tanks via pipelines after production. Since both pipelines and storage tanks are made of stainless steel, the aging of the pipelines often results in the generation of a certain amount of metal particles. These metal particles, especially iron filings, may generate sparks when they rub or collide inside the pipelines, posing a potential hazard of flammability and explosion. In addition, the quality of the methyl ethyl carbonate products loaded onto trucks cannot be guaranteed. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned deficiencies in the existing technology by providing a device for removing metal particulate matter from methyl ethyl carbonate (MEC) products. By installing a magnetic filter, metal particulate impurities can be effectively adsorbed. Combined with a membrane filter cartridge, this not only significantly improves product quality and effectively reduces the probability of fire and explosion, but also reduces the accident risk during MEC storage and improves the quality of MEC products loaded onto trucks.

[0005] The present invention relates to a device for removing metal particles from methyl ethyl carbonate (MEC) products. The technical solution includes: a MEC storage tank (V303), a first magnetic filter (1), a first shielded pump (P302A), a second shielded pump (P302B), a membrane filter (2), a second magnetic filter (3), a loading platform (4), a loading platform control valve (11), a circulation pipeline control valve (12), and a MEC production unit (18). The inlet of the MEC storage tank (V303) is connected to the MEC production unit (18) via a pipeline and the first magnetic filter (1). The outlet of the methyl ethyl carbonate storage tank (V303) is connected to a first shielded pump (P302A) and a second shielded pump (P302B) in parallel via pipelines. The outlet ends of the first shielded pump (P302A) and the second shielded pump (P302B) are connected to the loading platform (4) via pipelines and a membrane filter (2) and a second magnetic filter (3). A loading platform control valve (11) is installed between the second magnetic filter (3) and the loading platform (4). The output end of the second magnetic filter (3) is connected to the lower side of the methyl ethyl carbonate storage tank (V303) via a circulation pipeline control valve (12) and a circulation pipeline (19).

[0006] Preferably, the top of the methyl ethyl carbonate storage tank (V303) is connected to a nitrogen storage tank (5) via a pipeline, and two pipelines are provided on the pipeline, one of which is equipped with an automatic nitrogen control valve (6) and the other of which is equipped with a manual nitrogen control valve (7).

[0007] Preferably, the top of the ethyl methyl carbonate storage tank (V303) is connected to the exhaust gas combustion system (9) via a pipeline and an exhaust gas control valve (8); a breather valve (10) is provided on one side of the top of the ethyl methyl carbonate storage tank (V303).

[0008] Preferably, a level gauge (15) and a thermometer (16) are provided on one side of the methyl ethyl carbonate storage tank (V303). The level gauge (15) is connected via a signal line to a third control valve (17) installed between the output end of the first magnetic filter (1) and the methyl ethyl carbonate storage tank (V303).

[0009] Preferably, a first control valve (13) is installed on the pipeline at the inlet end of the first shielded pump (P302A) and a second control valve (14) is installed on the pipeline at the inlet end of the second shielded pump (P302B).

[0010] The beneficial effects of this utility model are as follows: This utility model can remove metal particles from methyl ethyl carbonate through the first magnetic filter; in addition, when loading methyl ethyl carbonate, the first shielded pump is turned on first and the second shielded pump is turned off. After the methyl ethyl carbonate is filtered by the first shielded pump and the membrane filter, it is sent to the second magnetic filter to filter the metal particles that may be generated in the methyl ethyl carbonate storage tank and the subsequent pipelines, which effectively improves the quality of the loaded methyl ethyl carbonate and avoids the possible risk of flammability and explosion.

[0011] Furthermore, in order to improve the product quality inside the methyl ethyl carbonate storage tank, the vehicle platform control valve is closed and the circulation pipeline control valve is opened. The quality of methyl ethyl carbonate is improved by passing through the first shielded pump, the membrane filter, and the second magnetic filter. Then, it is transported to the lower side of the methyl ethyl carbonate storage tank through the circulation pipeline, thus improving the product quality inside the methyl ethyl carbonate storage tank. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of Embodiment 1 of this utility model;

[0013] Figure 2 This is a structural schematic diagram of Embodiment 2 of this utility model;

[0014] In the diagram above: ethyl methyl carbonate storage tank V303, first magnetic filter 1, first shielded pump P302A, second shielded pump P302B, membrane filter 2, second magnetic filter 3, loading platform 4, nitrogen storage tank 5, nitrogen automatic control valve 6, nitrogen manual control valve 7, exhaust gas control valve 8, exhaust gas combustion system 9, breather valve 10, loading platform control valve 11, circulation pipeline control valve 12, first control valve 13, second control valve 14, level gauge 15, thermometer 16, third control valve 17, ethyl methyl carbonate production unit 18. Detailed Implementation

[0015] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0016] Example 1, referring to Figure 1This utility model discloses a device for removing metal particles from methyl ethyl carbonate (MEC) products. The device includes an MEC storage tank V303, a first magnetic filter 1, a first shielded pump P302A, a second shielded pump P302B, a membrane filter 2, a second magnetic filter 3, a loading platform 4, a loading platform control valve 11, a circulation pipeline control valve 12, and an MEC production unit 18. The inlet of the MEC storage tank V303 is connected to the MEC production unit 18 via a pipeline and the first magnetic filter 1. The outlet of the methyl ethyl carbonate storage tank V303 is connected to a first shielded pump P302A and a second shielded pump P302B in parallel via pipelines. The outlets of the first shielded pump P302A and the second shielded pump P302B are connected to the loading platform 4 via pipelines and a membrane filter 2 and a second magnetic filter 3. A loading platform control valve 11 is installed between the second magnetic filter 3 and the loading platform 4. The output end of the second magnetic filter 3 is connected to the lower side of the methyl ethyl carbonate storage tank V303 via a circulation pipeline control valve 12 and a circulation pipeline 19.

[0017] The top of the aforementioned methyl ethyl carbonate storage tank V303 is connected to a nitrogen storage tank 5 via a pipeline, and two pipelines are provided on the pipeline. One pipeline is equipped with an automatic nitrogen control valve 6, and the other pipeline is equipped with a manual nitrogen control valve 7.

[0018] The top of the aforementioned methyl ethyl carbonate storage tank V303 is connected to the exhaust gas combustion system 9 via pipelines and exhaust gas control valve 8; a breather valve 10 is provided on one side of the top of the methyl ethyl carbonate storage tank V303.

[0019] The aforementioned methyl ethyl carbonate storage tank V303 is equipped with a level gauge 15 and a thermometer 16 on one side. The level gauge 15 is connected via a signal line to a third control valve 17 installed between the output end of the first magnetic filter 1 and the methyl ethyl carbonate storage tank V303.

[0020] A first control valve 13 is installed on the pipeline at the inlet end of the first shielded pump P302A, and a second control valve 14 is installed on the pipeline at the inlet end of the second shielded pump P302B.

[0021] Additionally, it should be noted that the first magnetic filter 1, the membrane filter cartridge 2, and the second magnetic filter 3 are existing technologies well known to those skilled in the art, and their specific structures will not be described in detail.

[0022] In use, the methyl ethyl carbonate produced by the methyl ethyl carbonate production apparatus 18 passes through a first magnetic filter 1 before entering the methyl ethyl carbonate storage tank V303, which removes metal particles from the methyl ethyl carbonate. Furthermore, the outlet of the methyl ethyl carbonate storage tank V303 is connected via pipeline to a first shielded pump P302A and a second shielded pump P302B connected in parallel. The outlets of the first shielded pump P302A and the second shielded pump P302B are connected via pipelines and a membrane filter 2 and a second magnetic filter 3 to a loading platform 4. When loading the methyl ethyl carbonate, the first... Shielded pump P302A is turned off, and second shielded pump P302B is turned off. After methyl ethyl carbonate is filtered by first shielded pump P302A and membrane filter 2, vehicle platform control valve 11 is opened and circulation pipeline control valve 12 is closed. Since membrane filter has no specific filtering effect on metal particles, especially iron filings, it is then fed into second magnetic filter 3 to filter metal particles, especially iron filings, that may be generated in methyl ethyl carbonate storage tank V303 and subsequent pipelines. This effectively improves the quality of methyl ethyl carbonate loaded into the vehicle and avoids the possible risks of flammability and explosion.

[0023] Furthermore, in order to improve the product quality in the methyl ethyl carbonate storage tank V303, the vehicle platform control valve 11 can be closed and the circulation pipeline control valve 12 can be opened. The quality of methyl ethyl carbonate is improved by passing through the first shielded pump P302A, the membrane filter 2, and the second magnetic filter 3. Then, it is transported to the lower side of the methyl ethyl carbonate storage tank V303 through the circulation pipeline 19, thereby improving the product quality in the methyl ethyl carbonate storage tank V303.

[0024] Alternatively, the first shielded pump P302A can be turned off and the second shielded pump P302B can be turned on to achieve the same function, ensuring the stable and reliable operation of the entire device.

[0025] Example 2, refer to Figure 1This utility model discloses a device for removing metal particles from methyl ethyl carbonate (MEC) products. The device includes an MEC storage tank V303, a first magnetic filter 1, a first shielded pump P302A, a second shielded pump P302B, a membrane filter 2, a second magnetic filter 3, a loading platform 4, a loading platform control valve 11, a circulation pipeline control valve 12, and an MEC production unit 18. The inlet of the MEC storage tank V303 is connected to the MEC production unit 18 via a pipeline and the first magnetic filter 1. The outlet of the methyl ethyl carbonate storage tank V303 is connected to a first shielded pump P302A and a second shielded pump P302B in parallel via pipelines. The outlets of the first shielded pump P302A and the second shielded pump P302B are connected to the loading platform 4 via pipelines and a membrane filter 2 and a second magnetic filter 3. A loading platform control valve 11 is installed between the second magnetic filter 3 and the loading platform 4. The output end of the second magnetic filter 3 is connected to the lower side of the methyl ethyl carbonate storage tank V303 via a circulation pipeline control valve 12 and a circulation pipeline 19.

[0026] The difference from Example 1 is:

[0027] Reference Figure 2 A breather valve 10 is installed on the top side of the methyl ethyl carbonate storage tank V303. The outlet end of the breather valve 10 is connected to the exhaust gas combustion system 9 through a pipeline to prevent the exhaust gas generated by the breather valve from being released into the air for a long time, thereby reducing pollution and damage to the environment.

[0028] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent transformations made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A device for removing metal particles from methyl ethyl carbonate products, characterized in that: The system includes a methyl ethyl carbonate storage tank (V303), a first magnetic filter (1), a first shielded pump (P302A), a second shielded pump (P302B), a membrane cartridge filter (2), a second magnetic filter (3), a loading platform (4), a loading platform control valve (11), a circulation pipeline control valve (12), and a methyl ethyl carbonate production unit (18). The inlet of the methyl ethyl carbonate storage tank (V303) is connected to the methyl ethyl carbonate production unit (18) via a pipeline and the first magnetic filter (1). The outlet of the methyl ethyl carbonate storage tank (V303) is connected via... The pipeline is connected to the first shielded pump (P302A) and the second shielded pump (P302B) in parallel. The outlet ends of the first shielded pump (P302A) and the second shielded pump (P302B) are connected to the loading platform (4) through the pipeline and the membrane filter (2) and the second magnetic filter (3). The loading platform control valve (11) is installed between the second magnetic filter (3) and the loading platform (4). The output end of the second magnetic filter (3) is connected to the lower side of the methyl ethyl carbonate storage tank (V303) through the circulation pipeline control valve (12) and the circulation pipeline (19).

2. The device for removing metal particles from methyl ethyl carbonate products according to claim 1, characterized in that: The top of the methyl ethyl carbonate storage tank (V303) is connected to a nitrogen storage tank (5) via a pipeline, and two pipelines are provided on the pipeline. One pipeline is equipped with an automatic nitrogen control valve (6), and the other pipeline is equipped with a manual nitrogen control valve (7).

3. The device for removing metal particles from methyl ethyl carbonate products according to claim 2, characterized in that: The top of the methyl ethyl carbonate storage tank (V303) is connected to the exhaust gas combustion system (9) via pipelines and an exhaust gas control valve (8); a breather valve (10) is provided on one side of the top of the methyl ethyl carbonate storage tank (V303).

4. The device for removing metal particles from methyl ethyl carbonate products according to claim 3, characterized in that: A level gauge (15) and a thermometer (16) are provided on one side of the methyl ethyl carbonate storage tank (V303). The level gauge (15) is connected via a signal line to a third control valve (17) installed between the output end of the first magnetic filter (1) and the methyl ethyl carbonate storage tank (V303).

5. The device for removing metal particles from methyl ethyl carbonate products according to claim 4, characterized in that: A first control valve (13) is installed on the pipeline at the inlet end of the first shielded pump (P302A), and a second control valve (14) is installed on the pipeline at the inlet end of the second shielded pump (P302B).

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