A device for filtering and purifying n-butyllithium

Abstract

This utility model provides a n-butyllithium filtration and purification device, relating to the field of filtration and purification technology. The device includes a filtration and purification tank with an inlet and an outlet fixedly installed at its upper and lower ends. A filter screen is fixedly connected to the inner surface of the tank. A side opening is provided at the lower end of the filter screen on the surface of the tank. The n-butyllithium solution poured from the inlet is filtered through the filter screen. Simultaneously, an electric telescopic rod repeatedly extends and retracts to strike the surface of the filtration and purification tank, causing the tank and filter screen to vibrate. This allows impurities filtered out on the filter screen to roll along the inclined filter screen towards the side opening at the lower end of the screen, and then fall through a channel into an impurity collection box within the storage box. The impurity collection box can then be easily removed from the storage box to clean the impurities, thus facilitating the cleaning of impurities from the filter screen.

Description

Technical Field

[0001] This utility model relates to the field of filtration and purification technology, and in particular to a n-butyllithium filtration and purification device. Background Technology

[0002] n-Butyllithium is an anionic polymerization initiator widely used in industries such as pharmaceuticals, chemicals, liquid crystal electronics, rubber, scientific research, and food additives.

[0003] However, in the existing technology, the existing n-butyllithium generally needs to be filtered and purified during the processing. The filtrate is finely filtered through a filter to finally obtain a light yellow transparent high-purity n-butyllithium solution. The existing n-butyllithium filtration process is generally carried out in a closed filter tank. The impurities filtered out during filtration usually accumulate in the filter screen. Since the filter screen is in a closed environment, it is not convenient for staff to clean it. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies: In the filtration process of existing n-butyllithium, it is generally carried out in a closed filter tank, and the impurities filtered out during filtration usually accumulate in the filter screen. Since the filter screen is in a closed environment, it is not convenient for staff to clean it.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a n-butyllithium filtration and purification device, comprising a filtration and purification tank, wherein an inlet and an outlet are fixedly installed at the upper and lower ends of the filtration and purification tank, and a filter screen is fixedly connected to the inner surface of the filtration and purification tank. A side opening is provided on the surface of the filtration and purification tank at the lower end of the filter screen. A fixing ring is fixedly connected to the outer surface of the filtration and purification tank, and an electric telescopic rod is fixedly fixed through the surface of the fixing ring. A channel component is fixedly connected to the surface of the filtration and purification tank near the side opening, and a carrying box is fixedly connected to one end of the channel component. A bracket is fixedly connected to the lower end of the carrying box, and the bracket is fixedly connected to the filtration and purification tank. An impurity receiving box is movably connected in the carrying box, and a fixing plate is fixed to one end of the impurity receiving box.

[0006] In a preferred embodiment, a soft pad is fixedly connected to one end of the electric telescopic rod.

[0007] In a preferred embodiment, each of the four corners of the fixed plate surface is fixedly connected with a locking block, and the locking block engages with the cargo box.

[0008] In a preferred embodiment, a handle is fixedly connected to one side surface of the fixing plate.

[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0010] This invention filters a n-butyllithium solution poured from the inlet using a filter screen. Simultaneously, an electrically telescopic rod repeatedly extends and retracts to strike the surface of the purification tank, causing vibration of the tank and the filter screen. This allows impurities filtered out on the screen to roll down the inclined screen towards the side opening at its lower end, then fall through a channel into an impurity collection box within the storage chamber. The impurity collection box can then be easily removed from the storage chamber to clean the impurities, thus facilitating the cleaning of impurities from the filter screen. Attached Figure Description

[0011] Figure 1 A schematic diagram of the overall structure of a n-butyllithium filtration and purification device provided by this utility model;

[0012] Figure 2 A schematic diagram of the structure around the fixing ring of a n-butyllithium filtration and purification device provided by this utility model;

[0013] Figure 3 A schematic diagram of the structure around the filter screen of a n-butyllithium filtration and purification device provided by this utility model;

[0014] Figure 4 A schematic diagram of the structure around the loading chamber of a n-butyllithium filtration and purification device provided by this utility model.

[0015] Legend:

[0016] 1. Filtration and purification tank; 2. Inlet; 3. Outlet; 4. Filter screen; 5. Side opening; 6. Fixing ring; 7. Electric telescopic rod; 8. Pad; 9. Channel component; 10. Storage box; 11. Bracket; 12. Impurity collection box; 13. Fixing plate; 14. Locking block; 15. Handle. Detailed Implementation

[0017] 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.

[0018] Example 1

[0019] like Figure 1-4As shown, this utility model provides a technical solution: a n-butyllithium filtration and purification device, including a filtration and purification tank 1. An inlet 2 and an outlet 3 are fixedly installed at the upper and lower ends of the filtration and purification tank 1, respectively. Unfiltered n-butyllithium solution is poured into the filtration and purification tank 1 through the inlet 2, and filtered n-butyllithium solution flows out through the outlet 3. A filter screen 4 is fixedly connected to the inner surface of the filtration and purification tank 1, which filters the n-butyllithium solution with the help of the filter screen 4. A side opening 5 is provided on the surface of the filtration and purification tank 1 at the lower end of the filter screen 4. A fixing ring 6 is fixedly connected to the outer surface of the filtration and purification tank 1, and an electric telescopic rod 7 is fixedly inserted through the surface of the fixing ring 6. The electric telescopic rod 7 repeatedly extends and retracts to strike the surface of the filtration and purification tank 1, causing the filtration and purification tank 1 and the filter screen 4 to be filtered. The filter plate 4 vibrates, causing the impurities filtered out on the filter plate 4 to roll along the inclined filter plate 4 toward the side opening 5 at the lower end of the filter plate 4. A channel component 9 is fixedly connected to the surface of the filtration purification tank 1 near the installation position of the side opening 5, and a carrying box 10 is fixedly connected to one end of the channel component 9. A bracket 11 is fixedly connected to the lower end of the carrying box 10, and the bracket 11 is fixedly connected to the filtration purification tank 1. An impurity receiving box 12 is movably connected in the carrying box 10, and a fixing plate 13 is fixed to one end of the impurity receiving box 12. The impurities rolling out from the side opening 5 roll along the channel component 9 and fall into the impurity receiving box 12 in the carrying box 10 for collection. Then, the impurity receiving box 12 can be easily cleaned by pulling it out of the carrying box 10, thereby achieving the purpose of conveniently cleaning the impurities on the filter plate 4.

[0020] Example 2

[0021] like Figure 1-4 As shown, a soft pad 8 is fixedly connected to one end of the electric telescopic rod 7. With the help of the soft pad 8, the damage caused by repeated impacts of the electric telescopic rod 7 on the outer surface of the filtration purification tank 1 is effectively reduced. Each of the four corners of the surface of the fixing plate 13 is fixedly connected to a locking block 14, and the locking block 14 engages with the container 10. With the help of the locking block 14, the fixing plate 13 is locked and fixed at the opening of the container 10, thereby effectively improving the stability of the impurity collection box 12 placed in the container 10. A handle 15 is fixedly connected to one side of the fixing plate 13. By manually pulling the handle 15, the fixing plate 13 and the impurity collection box 12 can be manually slid outward, allowing the impurity collection box 12 to be pulled out of the container 10 and the impurities inside to be cleaned.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A n-butyllithium filtration purification apparatus comprising a filtration purification tank (1), characterized in that: The filter purification tank (1) is fixedly installed with an inlet (2) and an outlet (3) at its upper and lower ends, respectively. A filter screen plate (4) is fixedly connected to the inner surface of the filter purification tank (1). A side opening (5) is opened at the lower end of the filter screen plate (4) on the surface of the filter purification tank (1). A fixing ring (6) is fixedly connected to the outer surface of the filter purification tank (1). An electric telescopic rod (7) is fixedly fixed through the surface of the fixing ring (6). A channel component (9) is fixedly connected to the surface of the filter purification tank (1) near the installation position of the side opening (5). A carrying box (10) is fixedly connected to one end of the channel component (9). A bracket (11) is fixedly connected to the lower end of the carrying box (10). The bracket (11) is fixedly connected to the filter purification tank (1). An impurity receiving box (12) is movably connected in the carrying box (10). A fixing plate (13) is fixed to one end of the impurity receiving box (12).

2. The n-butyllithium filtration and purification device according to claim 1, characterized in that: A soft pad (8) is fixedly connected to one end of the electric telescopic rod (7).

3. The n-butyllithium filtration and purification device according to claim 1, characterized in that: The four corners of the fixed plate (13) are all fixedly connected with a locking block (14), and the locking block (14) engages with the cargo box (10).

4. The n-butyllithium filtration and purification device according to claim 1, characterized in that: A handle (15) is fixedly connected to one side surface of the fixing plate (13).

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