Separation device for methylene methanedisulfonate production

Abstract

The utility model provides a material separating device for methylene methanedisulfonate production. The material separating device comprises a tank body, a tank cover, a vibration assembly and a cooling coil, the tank body is provided with a discharge pipe and a cold water injection port, and is coated with a cooling water circulating jacket; a feed liquid injection pipe is arranged on the tank cover; the vibration assembly comprises a mounting plate, a vibration motor mounted on the mounting plate, elastic supporting legs for connecting the mounting plate to the tank cover, and two groups of pipeline joints fixed on the mounting plate; the cooling coil pipe is arranged in an inner cavity of the tank body, and a liquid inlet pipe and a liquid outlet pipe of the cooling coil pipe both penetrate through the tank cover; the liquid inlet pipe is connected with one end of one group of pipeline joints, and the liquid outlet pipe is connected with one end of the other group of pipeline joints. The separating-out device for methylene methanedisulfonate production disclosed by the utility model can be used for removing generated heat in time, the product quality is good, and the yield is high.

Description

Technical Field

[0001] The utility model belongs to the field of methylene disulfonate production equipment, in particular to a material separation device used for methylene disulfonate production. Background Art

[0002] Methylene disulfonate (MMDS) is a new type of electrolyte additive for lithium-ion batteries. In the production of lithium battery electrolytes, batteries with methylene disulfonate (MMDS) added can greatly improve the high-temperature cycle performance of lithium batteries and significantly extend the service life of lithium batteries. It is suitable for power batteries, especially power batteries with lithium manganese oxide as the positive electrode material. MMDS can prevent the Mn melted at high temperature from being adsorbed on the negative electrode surface, inhibit the impedance increase, effectively improve the cycle characteristics, and greatly increase its cycle life.

[0003] In the synthesis process of methylene disulfonate, the system obtained after the reaction is a homogeneous liquid, which needs to be mixed with water so that the crude methylene disulfonate is precipitated, and then subsequent treatment is performed to obtain the final product. The process of mixing with water to precipitate the material is an exothermic process, and it is necessary to remove the heat in time, otherwise the high temperature will cause the product to decompose. In the prior art, the feed liquid is usually slowly dripped into ice water to precipitate the material, and a cooling cycle jacket is set to cool down the temperature. This method has a poor cooling effect, uneven cooling, and the heat generated cannot be removed in time, affecting the quality and yield of the product. Utility Model Content

[0004] In view of this, in order to solve the above technical problems, the utility model proposes a material separation device for the production of methylene methane disulfonate, which has a reasonable structural design, can timely remove the generated heat, has a good cooling effect, has a uniform temperature at various locations in the system, has good product quality and a high yield.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A material separation device for producing methylene methane disulfonate, comprising:

[0007] A tank body, wherein a discharge pipe is provided at the bottom of the tank body, a cold water injection port communicating with the inner cavity is provided on the side wall, and a cooling water circulation jacket is provided on the outer side wall;

[0008] A tank cover, which is detachably covered on the tank body and is provided with a liquid injection pipe;

[0009] A vibration assembly, the vibration assembly comprising a mounting plate, a vibration motor mounted on the mounting plate, elastic support legs connecting the mounting plate to the tank cover, and two sets of pipe joints fixed to the mounting plate;

[0010] A cooling coil, wherein the cooling coil is arranged in the inner cavity of the tank body, and the liquid inlet pipe and the liquid outlet pipe of the cooling coil both pass through the tank cover and do not contact the tank cover; the liquid inlet pipe is connected to one end of a group of pipe joints, and the other end of the group of pipe joints is connected to the external coolant supply end through a hose; the liquid outlet pipe is connected to one end of another group of pipe joints, and the other end of the other group of pipe joints is connected to the external coolant recovery end through a hose.

[0011] The cold water injection port is used to add cold water into the tank body, and the cold water temperature is generally between 0 and 5°C; the liquid injection pipe is used to slowly drip the reaction completion liquid into the tank body; the cooling water circulation jacket is used to cool the reaction completion liquid and remove the heat generated after mixing it with water; the cooling coil is used to cool the system in the tank body, which can ensure that the generated heat is removed in time and that the temperature in various parts of the system is uniform, which is conducive to optimizing the quality and yield of the precipitated material; in addition, since the precipitated product will adhere to the cooling coil and affect the product yield, a vibration component is set, and the cooling coil is supported by the vibration component, so that the cooling coil can vibrate the product attached thereto in time through vibration.

[0012] Furthermore, it also includes a spray device; the spray device includes a spray pipe arranged on the tank cover and a spray plate suspended above the cooling coil; the liquid inlet end of the spray pipe is connected to the external spray liquid supply end, and the liquid outlet end of the spray pipe is connected to the spray plate; a plurality of spray heads are evenly distributed on the spray plate.

[0013] After the separation is completed, the material is discharged from the discharge pipe. The spray device is used to spray the cooling coil to further rinse the precipitated product that has not been vibrated. The rinse liquid is discharged from the discharge pipe and merged with the material to enter the next filtration process.

[0014] Furthermore, the spray plate is provided with a butt joint, and the butt joint is detachably connected to the spray pipe.

[0015] Furthermore, it also includes a scraping device, which includes a driving motor arranged at the center of the outer side of the bottom of the tank body, a connecting head driven by the driving motor and extending into the inner cavity of the tank body, and a scraping rod connected to the connecting head; the structure of the scraping rod is adapted to the inner cavity wall of the tank body.

[0016] In order to improve the yield of crude methylene disulfonate, the precipitated product attached to the inner wall of the tank can be cleaned off by scraping the inner wall of the tank with a scraping rod. The scraping rod is very thin and coated with an anti-stick coating, and there is very little precipitated product attached to it.

[0017] Furthermore, the scraping rod comprises a rod body and a scraper blade arranged on the rod body, the rod body is detachably connected to the connecting head, and the scraper blade is in contact with the inner cavity wall of the tank body.

[0018] Furthermore, the water inlet of the cooling water circulation jacket is arranged at the upper end, and the water outlet is arranged at the lower end at the diagonal position; the water inlet of the cooling water circulation jacket is connected to the external coolant supply end, and the water outlet of the cooling water circulation jacket is connected to the external coolant recovery end.

[0019] Furthermore, a flow regulating valve is provided on the feed liquid injection pipe to ensure slow addition in a dripping manner.

[0020] Compared with the prior art, the material separation device for producing methylene methane disulfonate described in the utility model has the following advantages:

[0021] (1) The material separation device for producing methylene disulfonate of the utility model has a reasonable structural design. It adopts a dual cooling method of an external cooling water circulation jacket and an internal cooling coil, which can remove the generated heat in time and ensure that the temperature in each part of the system is uniform, thereby optimizing the quality and yield of the precipitated material. At the same time, a vibration component is provided, so that the cooling coil can vibrate the product attached thereto in time by vibration, thereby avoiding affecting the product yield. At the same time, the attachments are cleaned in time to avoid excessive attachments, which is beneficial to heat exchange.

[0022] (2) The material separation device for producing methylene disulfonate of the utility model is also provided with a spraying device, which can spray and wash the cooling coil to wash away the precipitated product that has not been vibrated, thereby ensuring the cleanliness of the surface of the cooling coil. The washing liquid is discharged from the discharge pipe and merged with the material, thereby improving the yield of the precipitated product;

[0023] (3) The material separation device for producing methylene disulfonate of the utility model is also provided with a scraping device, which can timely scrape off the precipitated product attached to the inner wall of the tank body, thereby improving the final yield of the precipitated product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0025] Figure 1 The present invention relates to a material separation device for producing methylene methane disulfonate as described in an embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 1-tank body, 2-tank cover, 3-vibration assembly, 4-cooling coil, 5-spraying device, 6-sweeping device, 7-discharge pipe, 8-cold water injection port, 9-cooling water circulation jacket, 10-liquid injection pipe, 11-flow regulating valve, 12-mounting plate, 13-vibration motor, 14-elastic supporting leg, 15-pipe joint, 16-liquid inlet pipe, 17-liquid outlet pipe, 18-hose, 19-spraying pipe, 20-spraying plate, 21-driving motor, 22-connector, 23-sweeping rod. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0032] like Figure 1 As shown, a material separation device for producing methylene disulfonate includes a tank body 1, a tank cover 2, a vibration component 3, a cooling coil 4, a spray device 5, and a scraping device 6;

[0033] A discharge pipe 7 is provided at the bottom of the tank body 1, a cold water injection port 8 communicating with the inner cavity is provided on the side wall, and a cooling water circulation jacket 9 is provided on the outer wall; the water inlet end of the cooling water circulation jacket 9 is provided at the upper end, and the water outlet end is provided at the lower end at the diagonal position; the water inlet end of the cooling water circulation jacket 9 is connected to the external coolant supply end, and the water outlet end of the cooling water circulation jacket 9 is connected to the external coolant recovery end;

[0034] The tank cover 2 is detachably covered on the tank body 1, and a liquid injection pipe 10 is provided on the tank cover 2, and a flow regulating valve 11 is provided on the liquid injection pipe 10;

[0035] The vibration assembly 3 includes a mounting plate 12, a vibration motor 13 mounted on the mounting plate 12, elastic support legs 14 connecting the mounting plate 12 to the tank cover 2, and two sets of pipe joints 15 fixed on the mounting plate 12;

[0036] The cooling coil 4 is arranged in the inner cavity of the tank body 1, and the liquid inlet pipe 16 and the liquid outlet pipe 17 of the cooling coil 4 both pass through the tank cover 2 and do not contact the tank cover 2; the liquid inlet pipe 16 is connected to one end of a group of pipe joints 15, and the other end of the group of pipe joints 15 is connected to the external coolant supply end through a hose 18; the liquid outlet pipe 17 is connected to one end of another group of pipe joints 15, and the other end of the other group of pipe joints 15 is connected to the external coolant recovery end through the hose 18;

[0037] The spray device 5 includes a spray pipe 19 provided on the tank cover 2 and a spray plate 20 suspended above the cooling coil 4; the liquid inlet end of the spray pipe 19 is connected to the external spray liquid supply end; a plurality of spray heads are evenly distributed on the spray plate 20; a butt joint is provided on the spray plate 20, and the butt joint is detachably connected to the liquid outlet end of the spray pipe 19;

[0038] The scraping device 6 includes a driving motor 21 arranged at the center of the outer side of the bottom of the tank body 1, a connecting head 22 driven by the driving motor 21 and extending into the inner cavity of the tank body 1, and a scraping rod 23 connected to the connecting head 22; the structure of the scraping rod 23 is adapted to the inner cavity wall of the tank body 1, the scraping rod 23 includes a rod body and a scraping blade arranged on the rod body, the rod body is detachably connected to the connecting head 22, and the scraping blade is in contact with the inner cavity wall of the tank body 1.

[0039] The working process of the material separation device for producing methylene methane disulfonate described in the utility model is as follows;

[0040] Deionized water at a temperature of 0 to 5° C. is injected into the tank body 1 from the cold water injection port 8, and at the same time, the cooling water circulation jacket 9 and the cooling coil 4 start the cooling water circulation to control the system temperature in the tank body 1 at 0 to 5° C. The reaction completion liquid is slowly dripped into the deionized water through the feed liquid injection pipe 10; during the dripping process, the vibration motor 13 is started, the cooling coil 4 vibrates to prevent the precipitate from adhering, and at the same time the drive motor 21 is started, and the scraping rod 23 scrapes the inner wall of the tank body 1 to scrape off the attached precipitate and play a certain stirring role; after the dripping is completed, the material is discharged after keeping warm for a period of time, and the feed liquid is discharged from the discharge pipe 7, the spray device 5 is started to spray the cooling coil 4, and the flushing liquid is discharged from the discharge pipe 7 and merges with the feed liquid to enter the next filtration process.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A material separation device for the production of methylene methane disulfonate, characterized in that: include: A tank body, wherein a discharge pipe is provided at the bottom of the tank body, a cold water injection port communicating with the inner cavity is provided on the side wall, and a cooling water circulation jacket is provided on the outer side wall; A tank cover, which is detachably covered on the tank body and is provided with a liquid injection pipe; A vibration assembly, the vibration assembly comprising a mounting plate, a vibration motor mounted on the mounting plate, elastic support legs connecting the mounting plate to the tank cover, and two sets of pipe joints fixed to the mounting plate; A cooling coil, wherein the cooling coil is arranged in the inner cavity of the tank body, and the liquid inlet pipe and the liquid outlet pipe of the cooling coil both pass through the tank cover and do not contact the tank cover; the liquid inlet pipe is connected to one end of a group of pipe joints, and the other end of the group of pipe joints is connected to the external coolant supply end through a hose; the liquid outlet pipe is connected to one end of another group of pipe joints, and the other end of the other group of pipe joints is connected to the external coolant recovery end through a hose.

2. The material separation device for producing methylene methane disulfonate according to claim 1, characterized in that: It also includes a spray device; the spray device includes a spray pipe arranged on the tank cover and a spray plate suspended above the cooling coil; the liquid inlet end of the spray pipe is connected to the external spray liquid supply end, and the liquid outlet end of the spray pipe is connected to the spray plate; a plurality of spray heads are evenly distributed on the spray plate.

3. The material separation device for producing methylene methane disulfonate according to claim 2, characterized in that: The spray plate is provided with a butt joint, and the butt joint is detachably connected to the spray pipe.

4. The material separation device for producing methylene methane disulfonate according to claim 1, characterized in that: It also includes a scraping device, which includes a driving motor arranged at the center of the outer side of the bottom of the tank body, a connecting head driven by the driving motor and extending into the inner cavity of the tank body, and a scraping rod connected to the connecting head; the structure of the scraping rod is adapted to the inner cavity wall of the tank body.

5. The material separation device for producing methylene methane disulfonate according to claim 4, characterized in that: The scraping rod comprises a rod body and a scraper blade arranged on the rod body, the rod body is detachably connected to the connecting head, and the scraper blade is in contact with the inner cavity wall of the tank body.

6. The material separation device for producing methylene methane disulfonate according to any one of claims 1 to 5, characterized in that: The water inlet of the cooling water circulation jacket is arranged at the upper end, and the water outlet is arranged at the lower end at the diagonal position; the water inlet of the cooling water circulation jacket is connected to the external coolant supply end, and the water outlet of the cooling water circulation jacket is connected to the external coolant recovery end.

7. The material separation device for producing methylene methane disulfonate according to any one of claims 1 to 5, characterized in that: A flow regulating valve is arranged on the liquid injection pipe.

Images