A proportioning device for brominated polystyrene complex catalyst

Abstract

The utility model is suitable for chemical technology field provides a kind of proportioning device for brominated polystyrene compound catalyst, including jar body, the top surface of jar body is equipped with top cover, the top surface of top cover is equipped with the insertion slot that passes through, the inside of insertion slot is equipped with feeding cylinder, the both ends of feeding cylinder are open and are arranged, the inside of feeding cylinder is equipped with piston, the inner wall of piston is adapted with feeding cylinder, the top surface of piston is equipped with connecting rod, the top of connecting rod extends to the above of feeding cylinder, the top of feeding cylinder is equipped with cover plate, connecting rod penetrates cover plate, the top of top cover is equipped with constant-pressure titration funnel, the bottom of constant-pressure titration funnel is connected with the inside of jar body by rubber tube.The scheme is by controlling liquid phase drop adding speed, solid phase batch quantitative feeding, ensure that material mixes evenly in catalyst proportioning process, reaction is sufficient, greatly improves the output and purity of compound catalyst.

Description

Technical Field

[0001] This utility model belongs to the field of chemical technology, and in particular relates to a proportioning device for brominated polystyrene composite catalysts. Background Technology

[0002] Brominated polystyrene (BPS) is a bromine-based organic flame retardant with excellent mechanical, physical, and chemical properties, including high flame retardancy, thermal stability, and light stability. It is widely used in engineering plastics such as polybutylene terephthalate, polyethylene terephthalate, polyphenylene ether, and nylon-66.

[0003] Brominated polystyrene is a polymer produced by reacting styrene monomer with bromine. The bromination reaction of styrene monomer is usually carried out in an organic solvent and requires a catalyst to accelerate the reaction rate, reduce side reactions, and improve product selectivity.

[0004] The development and application of compound catalysts to improve the yield and purity of brominated polystyrene has always been a research hotspot in this field. However, traditional catalyst proportioning devices often suffer from problems such as inaccurate proportioning, complex operation, and catalyst waste. In addition, most of them involve one-time feeding, resulting in incomplete reaction, low yield, and low purity, which seriously affects the development and production of compound catalysts. Utility Model Content

[0005] The purpose of this invention is to provide a proportioning device for brominated polystyrene composite catalysts to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a proportioning device for brominated polystyrene compound catalysts, comprising a tank, a top cover on the top surface of the tank, an installation slot through the top surface of the top cover, a feeding cylinder passing through the installation slot, the feeding cylinder having open ends, a piston inside the feeding cylinder, the piston being adapted to the inner wall of the feeding cylinder, a connecting rod on the top surface of the piston, the top of the connecting rod extending above the feeding cylinder, a cover plate on the top of the feeding cylinder, the connecting rod passing through the cover plate, a constant pressure titration funnel above the top cover, the bottom of the constant pressure titration funnel being connected to the interior of the tank via a rubber tube, and a discharge pipe on the bottom surface of the tank.

[0007] Preferably, the top surface of the top cover is provided with a clamp, which holds the constant pressure titration funnel.

[0008] Preferably, the top inner diameter of the socket is larger than the bottom inner diameter, and a rubber plug is fitted on the side wall of the feeding cylinder, the outer diameter of which is adapted to the inner diameter of the socket.

[0009] Preferably, the top surface of the cover plate has a through hole, the through hole is slidably connected to the connecting rod, and the top of the connecting rod has a ball, the diameter of which is larger than the inner diameter of the through hole.

[0010] Preferably, the cover plate is threadedly connected to the feeding cylinder, and the top cover is fixed to the tank body with screws.

[0011] Preferably, the bottom surface of the tank is provided with a magnetic stirrer, and the inside of the tank is provided with a magnetic stir bar.

[0012] This utility model has at least the following beneficial effects:

[0013] This invention provides a proportioning device for brominated polystyrene composite catalysts. By controlling the liquid phase drop rate and feeding the solid phase in batches and in quantitative quantities, the device ensures that the materials are mixed evenly and react fully during the catalyst proportioning process, thereby greatly improving the yield and purity of the composite catalyst. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the feeding cylinder of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the feeding cylinder of this utility model.

[0017] In the attached diagram, the following are the reference numerals: 1. Tank body; 2. Top cover; 3. Insertion slot; 4. Feeding cylinder; 5. Cover plate; 6. Connecting rod; 7. Ball; 8. Through hole; 9. Piston; 10. Constant pressure titration funnel; 11. Clamp; 12. Magnetic stirrer; 13. Magnetic stir bar; 14. Discharge pipe; 15. Rubber stopper. 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 of the present utility model. 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 skilled in the art without creative effort are within the scope of protection of the present utility model.

[0019] Example

[0020] Please see Figure 1 , Figure 2 and Figure 3This utility model provides a technical solution: a proportioning device for brominated polystyrene compound catalyst, comprising a tank body 1, a top cover 2 on the top surface of the tank body 1, an installation slot 3 through the top surface of the top cover 2, a feeding cylinder 4 passing through the installation slot 3, the feeding cylinder 4 having open ends, a piston 9 inside the feeding cylinder 4, the piston 9 being adapted to the inner wall of the feeding cylinder 4, specifically, the piston 9 sealing the bottom of the feeding cylinder 4 and slidingly connected to the inner wall of the feeding cylinder 4, a connecting rod 6 on the top surface of the piston 9, specifically, the connecting rod 6 being fixedly connected to the piston 9, the top of the connecting rod 6 extending above the feeding cylinder 4, a cover plate 5 on the top of the feeding cylinder 4, the connecting rod 6 passing through the cover plate 5, a constant pressure titration funnel 10 above the top cover 2, the bottom of the constant pressure titration funnel 10 being connected to the interior of the tank body 1 through a rubber tube, and a discharge pipe 14 on the bottom surface of the tank body 1.

[0021] In this embodiment, several sets of slot 3 and feeding cylinder 4 are provided. When compounding brominated polystyrene catalyst, the liquid phase is poured into the constant pressure titration funnel 10, and the solid phase is quantitatively weighed and poured into the feeding cylinder 4. The feeding cylinder 4 is installed in the slot 3. When feeding, the connecting rod 6 is pushed, which drives the piston 9 to slide out of the feeding cylinder 4. Thus, the material can be quantitatively fed in batches through several feeding cylinders 4. The liquid phase is slowly added dropwise through the constant pressure titration funnel 10 at a certain rate. By controlling the liquid phase drop rate, the solid phase is quantitatively fed in batches, ensuring that the materials are mixed evenly and the reaction is complete during the catalyst preparation process.

[0022] Furthermore, the top surface of the top cover 2 is provided with a clamp 11, which is specifically fixedly connected to the top cover 2 and clamps the constant pressure titration funnel 10.

[0023] In this embodiment, the constant pressure titration funnel 10 is held by the clamp 11, which makes it easy to take out the constant pressure titration funnel 10 and replenish the liquid phase.

[0024] Furthermore, the top inner diameter of the mounting slot 3 is larger than the bottom inner diameter, and a rubber plug 15 is fitted on the side wall of the feeding cylinder 4. Specifically, the rubber plug 15 is tightly fitted on the side wall of the feeding cylinder 4 and is slidably connected to the inner wall of the mounting slot 3. The outer diameter of the rubber plug 15 is adapted to the inner diameter of the mounting slot 3.

[0025] In this embodiment, by matching the outer diameter of the rubber stopper 15 with the inner diameter of the mounting slot 3, the feeding cylinder 4 can be conveniently limited to prevent it from falling off.

[0026] Furthermore, a through hole 8 is provided on the top surface of the cover plate 5. The through hole 8 is slidably connected to the connecting rod 6. A ball 7 is provided on the top of the connecting rod 6. Specifically, the ball 7 is fixedly connected to the connecting rod 6, and the diameter of the ball 7 is larger than the inner diameter of the through hole 8.

[0027] In this embodiment, the ball 7 and the through hole 8 cooperate to limit the connecting rod 6, thereby limiting the piston 9 and preventing it from falling.

[0028] Furthermore, the cover plate 5 is threadedly connected to the feeding cylinder 4, and the top cover 2 is fixed to the tank body 1 with screws.

[0029] In this embodiment, the cover plate 5 and the top cover 2 can be opened easily.

[0030] Furthermore, a magnetic stirrer 12 is provided on the bottom surface of the tank 1, and a magnetic stir bar 13 is provided inside the tank 1.

[0031] In this embodiment, the magnetic stirrer 12 is powered on to generate magnetic force, which drives the magnetic stir bar 13 to stir, thereby improving the uniformity of mixing when the materials in the tank 1 are mixed.

[0032] The working principle and usage process of this utility model: After the utility model is installed, work according to the above implementation method until all working steps are completed.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] 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 these 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 proportioning device for a brominated polystyrene composite catalyst, characterized in that, The container includes a tank body (1), a top cover (2) on the top surface of the tank body (1), an installation slot (3) through the top surface of the top cover (2), a feeding cylinder (4) through the installation slot (3), the feeding cylinder (4) having open ends, a piston (9) inside the feeding cylinder (4), the piston (9) being adapted to the inner wall of the feeding cylinder (4), a connecting rod (6) on the top surface of the piston (9), the top of the connecting rod (6) extending above the feeding cylinder (4), a cover plate (5) on the top of the feeding cylinder (4), the connecting rod (6) penetrating the cover plate (5), a constant pressure titration funnel (10) above the top cover (2), the bottom of the constant pressure titration funnel (10) being connected to the inside of the tank body (1) via a rubber tube, and a discharge pipe (14) on the bottom surface of the tank body (1).

2. The proportioning device for brominated polystyrene composite catalyst according to claim 1, characterized in that: The top surface of the top cover (2) is provided with a clamp (11), which holds the constant pressure titration funnel (10).

3. The proportioning device for brominated polystyrene composite catalyst according to claim 1, characterized in that: The top inner diameter of the socket (3) is larger than the bottom inner diameter. The side wall of the feeding cylinder (4) is fitted with a rubber plug (15), and the outer diameter of the rubber plug (15) is adapted to the inner diameter of the socket (3).

4. The proportioning device for brominated polystyrene composite catalyst according to claim 1, characterized in that: The top surface of the cover plate (5) has a through hole (8), which is slidably connected to the connecting rod (6). The top of the connecting rod (6) has a ball (7), the diameter of which is larger than the inner diameter of the through hole (8).

5. A proportioning device for a brominated polystyrene composite catalyst according to claim 1, characterized in that: The cover plate (5) is threadedly connected to the feeding cylinder (4), and the top cover (2) is fixed to the tank body (1) by screws.

6. The proportioning device for brominated polystyrene composite catalyst according to claim 1, characterized in that: The bottom surface of the tank (1) is provided with a magnetic stirrer (12), and the inside of the tank (1) is provided with a magnetic stir bar (13).

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