An ethylene carbonate purification device

Abstract

This utility model relates to the field of ethylene carbonate processing technology and discloses an ethylene carbonate purification device, including a support structure and a purification structure. The purification structure is fixedly connected to the surface of the support structure. The purification structure includes a filtration unit and a distillation unit. The filtration unit is disposed on the side of the support structure, and the distillation unit is fixedly connected to the surface of the support structure. This ethylene carbonate purification device, by setting up a filtration unit, performs preliminary filtration of the ethylene carbonate raw material at the feeding stage, removing impurities and preventing impurities from entering subsequent purification processes. This effectively reduces the additional processing burden of purification steps such as distillation, making the purification process more efficient. Through the cooperation of the support structure, filtration unit, and distillation unit, a complete purification system is formed. The preliminary filtration at the feeding stage is closely linked to the distillation purification in the subsequent distillation unit. The integrated operation design reduces losses in intermediate steps.

Description

Technical Field

[0001] This utility model relates to the field of ethylene carbonate processing technology, specifically to an ethylene carbonate purification device. Background Technology

[0002] Ethylene carbonate purification equipment is used to purify and refine ethylene carbonate. It typically uses processes such as distillation, rectification, adsorption, and filtration to remove impurities such as water, methanol, and ethylene glycol, as well as high-boiling and low-boiling substances, to obtain high-purity ethylene carbonate products that meet the requirements of lithium battery electrolytes, coatings, pharmaceuticals, and other fields, ensuring product quality and performance.

[0003] The prior art discloses a ethylene carbonate purification device with application number 202322053755.5, including a connecting bracket, a distillation tank connected to the connecting bracket, a controller connected to the side wall of the distillation tank, a feed inlet connected to the side wall of the distillation tank, a heating coil connected to the jacket of the distillation tank, and a heater connected to the side wall of the distillation tank at one end of the heating coil. This invention, by incorporating a condensation plate, a distillation scraper, a bidirectional flow guide channel, and an annular backflow channel into the ethylene carbonate purification device, utilizes the interaction between these components to rapidly purify ethylene carbonate. This integrated operation during purification increases processing efficiency and saves costs, thus solving the problem of non-integrated operation.

[0004] The aforementioned apparatus uses distillation and condensation for rapid purification. However, when loading ethylene carbonate, it cannot perform preliminary filtration of impurities from the ethylene carbonate raw material, which increases the burden on purification and results in poor performance. Improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a device for purifying ethylene carbonate to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an ethylene carbonate purification device, comprising a support mechanism and a purification mechanism, wherein the purification mechanism is fixedly connected to the surface of the support mechanism.

[0007] The purification mechanism includes a filtration unit and a distillation unit. The filtration unit is disposed on the side of the support mechanism, and the distillation unit is fixedly connected to the surface of the support mechanism.

[0008] Preferably, the supporting mechanism consists of a temperature control base, a distillation kettle, a feed inlet, a vacuum pump, and an exhaust pipe. The distillation kettle is fixedly connected to the top of the temperature control base, the feed inlet is fixedly connected to the side of the distillation kettle, the vacuum pump is fixedly connected to the top of the distillation kettle, and the exhaust pipe is fixedly connected to the top of the vacuum pump, serving the functions of supporting and vacuuming.

[0009] Preferably, the filter unit consists of a sealing slot, a partition plate, a handle, a filter frame, a pull rod, and a filter element. The sealing slot is opened on the surface of the feed inlet, the partition plate is inserted into the interior of the sealing slot, the handle is fixedly connected to the top of the partition plate, the filter frame is inserted into the interior of the feed inlet, the pull rod is fixedly connected to the surface of the filter frame, and the filter element is disposed inside the filter frame, playing a preliminary filtration role.

[0010] Preferably, the distillation unit comprises a heating tank, a steam discharge pipe, a first cooler, a first collection box, a steam guide pipe, a second cooler, and a second collection box. The heating tank is fixedly connected to the side of the temperature control base, the steam discharge pipe is fixedly connected to the top of the distillation vessel, the first cooler is fixedly connected to the side of the steam discharge pipe, the first collection box is fixedly connected to the bottom of the first cooler, the steam guide pipe is fixedly connected to the side surface of the first cooler, the second cooler is fixedly connected to the bottom of the steam guide pipe, and the second collection box is fixedly connected to the bottom of the second cooler, thus serving the purpose of distillation and purification.

[0011] Preferably, the bottom side of the distillation vessel is provided with a conduction pipe, wherein there are two conduction pipes, which are used for liquid conduction and steam conduction respectively, and the conduction pipes are connected to the heating tank for easy conduction.

[0012] Preferably, the heating device is located inside the heating barrel, and the control circuit is located on the side of the temperature control base, wherein the heating device is electrically connected to the control circuit to control the heating barrel.

[0013] Preferably, the outer surface of the filter frame is attached to the inner wall of the feed inlet, which facilitates the material to undergo preliminary filtration through the filter frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This ethylene carbonate purification device, by setting up a filtration unit, performs preliminary filtration of the ethylene carbonate raw material at the feeding stage to remove impurities and prevent impurities from entering the subsequent purification process. This effectively reduces the additional processing burden of purification steps such as distillation, making the purification process more efficient.

[0015] 2. This ethylene carbonate purification device forms a complete purification system through the cooperation of the support structure, filtration unit and distillation unit. The preliminary filtration at the time of feeding is closely connected with the distillation purification of the subsequent distillation unit. The integrated operation design reduces the loss in the intermediate links. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the appearance and structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the filter frame separation structure of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0017] In the diagram: 1. Supporting mechanism; 101. Temperature control base; 102. Distillation kettle; 103. Feed inlet; 104. Vacuum pump; 105. Exhaust pipe; 2. Purification mechanism; 201. Sealing slot; 202. Partition plate; 203. Handle; 204. Filter rack; 205. Pull rod; 206. Filter element; 211. Heating tank; 212. Steam exhaust pipe; 213. First cooler; 214. First collection box; 215. Steam guide pipe; 216. Second cooler; 217. Second collection box. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 The present invention provides the following technical solution: an ethylene carbonate purification device, comprising a support mechanism 1 and a purification mechanism 2, wherein the purification mechanism 2 is fixedly connected to the surface of the support mechanism 1.

[0020] The purification unit 2 includes a filtration unit and a distillation unit. The filtration unit is located on the side of the support unit 1, and the distillation unit is fixedly connected to the surface of the support unit 1.

[0021] The supporting mechanism 1 consists of a temperature control base 101, a distillation kettle 102, a feed inlet 103, a vacuum pump 104, and an exhaust pipe 105. The distillation kettle 102 is fixedly connected to the top of the temperature control base 101. A conduction pipe is provided on the bottom side of the distillation kettle 102. There are two conduction pipes, which are used for liquid conduction and steam conduction respectively. The conduction pipes are connected to the heating tank 211 to facilitate conduction. The feed inlet 103 is fixedly connected to the side of the distillation kettle 102. The vacuum pump 104 is fixedly connected to the top of the distillation kettle 102. The exhaust pipe 105 is fixedly connected to the top of the vacuum pump 104, which serves the functions of supporting and vacuuming.

[0022] The filtration unit consists of a sealing slot 201, a partition plate 202, a handle 203, a filter frame 204, a pull rod 205, and a filter element 206. The sealing slot 201 is located on the surface of the feed inlet 103. The partition plate 202 is inserted into the interior of the sealing slot 201. The handle 203 is fixedly connected to the top of the partition plate 202. The filter frame 204 is inserted into the interior of the feed inlet 103, with its outer surface fitting against the inner wall of the feed inlet 103 to facilitate preliminary filtration of the material. The pull rod 205 is fixedly connected to the surface of the filter frame 204. The filter element 206 is located inside the filter frame 204 and serves as the primary filter. The distillation unit consists of a heating tank 211, a steam discharge pipe 212, a first cooler 213, a first collection box 214, and a steam guide pipe 215. The system comprises a second cooler 216 and a second collection box 217. A heating barrel 211 is fixedly connected to the side of a temperature control base 101. A heating device is installed inside the heating barrel 211. A control circuit is located on the side of the temperature control base 101, where the heating device is electrically connected to the control circuit to control the heating barrel 211. A steam discharge pipe 212 is fixedly connected to the top of a distillation kettle 102. A first cooler 213 is fixedly connected to the side of the steam discharge pipe 212. A first collection box 214 is fixedly connected to the bottom of the first cooler 213. A steam guide pipe 215 is fixedly connected to the side surface of the first cooler 213. A second cooler 216 is fixedly connected to the bottom of the steam guide pipe 215. A second collection box 217 is fixedly connected to the bottom of the second cooler 216, serving the purpose of distillation and purification.

[0023] In use, ethylene carbonate feedstock enters through inlet 103, and the partition plate 202 is opened by the handle 203. Preliminary filtration is completed through the filter frame 204 and filter element 206 set in inlet 103. Then the feedstock enters distillation kettle 102, the vacuum pump 104 draws a vacuum through exhaust pipe 105, and the temperature control base 101 controls the temperature of distillation kettle 102, so that the feedstock is initially evaporated. The steam enters the first cooler 213 through steam discharge pipe 212, and after cooling, it flows into the first collection box 214. The incompletely evaporated liquid enters the heating tank 211 through the conduction pipe. The heating device heats and evaporates it under the action of the control circuit. The generated steam enters the second cooler 216 through steam guide pipe 215, and after cooling, it is collected in the second collection box 217, thereby realizing the purification of ethylene carbonate.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for purifying ethylene carbonate, comprising a support mechanism (1) and a purification mechanism (2), characterized in that: The purification mechanism (2) is fixedly connected to the surface of the support mechanism (1); The purification mechanism (2) includes a filtration unit and a distillation unit. The filtration unit is disposed on the side of the support mechanism (1), and the distillation unit is fixedly connected to the surface of the support mechanism (1). The filtration unit consists of a sealing slot (201), a partition plate (202), a handle (203), a filter frame (204), a pull rod (205), and a filter element (206). The sealing slot (201) is opened on the surface of the feed inlet (103). The partition plate (202) is inserted into the inside of the sealing slot (201). The handle (203) is fixedly connected to the top of the partition plate (202). The filter frame (204) is inserted into the inside of the feed inlet (103). The pull rod (205) is fixedly connected to the surface of the filter frame (204). The filter element (206) is disposed inside the filter frame (204).

2. The ethylene carbonate purification apparatus according to claim 1, characterized in that: The supporting mechanism (1) consists of a temperature control base (101), a distillation kettle (102), a feed inlet (103), a vacuum pump (104), and an exhaust pipe (105). The distillation kettle (102) is fixedly connected to the top of the temperature control base (101), the feed inlet (103) is fixedly connected to the side of the distillation kettle (102), the vacuum pump (104) is fixedly connected to the top of the distillation kettle (102), and the exhaust pipe (105) is fixedly connected to the top of the vacuum pump (104).

3. The ethylene carbonate purification apparatus according to claim 2, characterized in that: The distillation unit consists of a heating tank (211), a steam discharge pipe (212), a first cooler (213), a first collection box (214), a steam guide pipe (215), a second cooler (216), and a second collection box (217). The heating tank (211) is fixedly connected to the side of the temperature control base (101). The steam discharge pipe (212) is fixedly connected to the top of the distillation vessel (102). The first cooler (213) is fixedly connected to the side of the steam discharge pipe (212). The first collection box (214) is fixedly connected to the bottom of the first cooler (213). The steam guide pipe (215) is fixedly connected to the side surface of the first cooler (213). The second cooler (216) is fixedly connected to the bottom of the steam guide pipe (215). The second collection box (217) is fixedly connected to the bottom of the second cooler (216).

4. The ethylene carbonate purification apparatus according to claim 3, characterized in that: The bottom side of the distillation vessel (102) is provided with a conduction pipe, wherein there are two conduction pipes, which are used for liquid conduction and steam conduction respectively, and the conduction pipes are connected to the heating tank (211).

5. The ethylene carbonate purification apparatus according to claim 4, characterized in that: The heating barrel (211) is equipped with a heating device inside, and the temperature control base (101) is equipped with a control circuit on its side, wherein the heating device is electrically connected to the control circuit.

6. The ethylene carbonate purification apparatus according to claim 5, characterized in that: The outer surface of the filter frame (204) is attached to the inner wall of the feed inlet (103).

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