Organic fluoride polymerization equipment for continuous production

Abstract

The utility model discloses organic fluoride polymerization equipment for continuous production, which comprises a polymerization reaction kettle and a standing separation tank, the standing separation tank is transversely arranged at the bottom of the polymerization reaction kettle, at least one separator is arranged in the standing separation tank, the interior of the standing separation tank is divided into a primary separation chamber and a secondary separation chamber by the separator, and the primary separation chamber is communicated with the secondary separation chamber. A sealing part is adjustably arranged on the communicating part of the separator, the sealing part has an opening state for opening the communicating part and a closing state for closing the communicating part, the bottoms of the first-stage separation chamber and the second-stage separation chamber are respectively provided with a material conveying port, the top of the second-stage separation chamber is provided with a liquid outlet, and the liquid adding port is communicated with the liquid outlet through a return pipe. According to the organic fluoride polymerization equipment provided by the utility model, a mixture of reactants, a solvent and a catalyst can be subjected to standing separation in the first-stage separation chamber and the second-stage separation chamber, and the solvent and the catalyst on the upper layer after separation can be repeatedly conveyed into the polymerization reaction kettle through the liquid outlet, the return pipe and the liquid adding opening.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production, in particular to continuous production of organic fluoride polymerization equipment. Background Art

[0002] The polymerization process is a key process in the preparation of organic fluorides. Since the self-polymerization reaction has certain reaction time requirements, existing polymerization equipment usually adopts a one-time feeding and unified discharge after the reaction. On the one hand, the solvent and catalyst are separated from the reaction products after discharge and re-introduced into the polymerization equipment through additional equipment and facilities. On the other hand, the polymerization equipment is fed again for production, forming an intermittent production method. This production method has problems such as long production cycle, low equipment utilization, multiple adjustments to the reaction environment, and high energy consumption. It often becomes a bottleneck process in the production of organic fluorides.

[0003] In existing production processes, in order to improve production efficiency and shorten the production cycle, multiple groups of polymerization equipment are usually set up to achieve relatively continuous production. However, this process usually requires a larger production site, increases production costs, and does not fundamentally solve the problem of low production efficiency of a single group of polymerization equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a continuous production organic fluoride polymerization device to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] A continuous production organic fluoride polymerization device comprises a polymerization reactor, a feeding port is provided at the top of the polymerization reactor, a discharging port is provided at the bottom of the polymerization reactor, and a static separation tank is provided, the static separation tank is horizontally arranged at the bottom of the polymerization reactor, at least one partition is provided inside the static separation tank, the partition divides the static separation tank into a primary separation chamber and a secondary separation chamber, the partition is provided with a connecting portion, the connecting portion is adjustably provided with a sealing member, the sealing member has an open state for opening the connecting portion and a closed state for closing the connecting portion, a feeding port is provided at the top of the primary separation chamber, the feeding port is connected to the discharging port, the bottoms of the primary separation chamber and the secondary separation chamber are both provided with a feeding port, the top of the secondary separation chamber is provided with a liquid outlet, and a liquid feeding port is provided on the side wall of the polymerization reactor, the liquid feeding port is connected to the liquid outlet through a reflux pipe.

[0007] In the above-mentioned organic fluoride polymerization equipment, the sealing member includes a rotating sealing body rotatably mounted on the separator, and the rotating sealing body is provided with an opening portion and a sealing portion. In the open state, the opening portion corresponds to the connecting portion, and in the sealed state, the sealing portion corresponds to the connecting portion.

[0008] In the above-mentioned organic fluoride polymerization equipment, the rotating seal body is arranged on the side of the partition close to the secondary separation chamber, a rotating drive unit is provided on the top of the static separation tank, and the partition is driven by the rotating drive unit and can rotate in the secondary separation chamber.

[0009] The organic fluoride polymerization equipment mentioned above has two opening parts, each of which includes an opening corresponding to the communicating part, and a filter is provided on the opening.

[0010] In the above-mentioned organic fluoride polymerization equipment, the mesh sizes of the filter screens on the two openings are different.

[0011] The organic fluoride polymerization equipment has two partitions, and the static separation tank is divided into one primary separation chamber and two secondary separation chambers by the two partitions. The two secondary separation chambers are respectively located on both sides of the primary separation chamber.

[0012] In the above-mentioned organic fluoride polymerization equipment, both of the two secondary separation chambers are provided with liquid outlets, and the liquid outlets are connected to the liquid adding port through the reflux pipe, and the reflux pipe is provided with a pump body.

[0013] In the above technical scheme, the continuous production organic fluoride polymerization equipment provided by the embodiment of the present invention includes a polymerization reactor and a static separation tank, the static separation tank is horizontally placed at the bottom of the polymerization reactor, and at least one partition is arranged inside the static separation tank, the partition divides the static separation tank into a primary separation chamber and a secondary separation chamber, the partition is provided with a connecting portion, and the connecting portion is adjustably provided with a sealing member, the sealing member has an open state for opening the connecting portion and a closed state for closing the connecting portion, after the organic fluoride polymerization reaction in the polymerization reactor is completed, the mixture of reactants, solvent and catalyst can be initially statically separated in the primary separation chamber, raw materials can continue to be added to the polymerization reactor for polymerization reaction, the mixture of reactants, solvent and catalyst is initially separated in the primary separation chamber, after the initial separation is completed, the mixed liquid continues to be statically separated in the secondary separation chamber, and the solvent and catalyst in the upper layer after separation can be repeatedly transported to the polymerization reactor through the liquid outlet, the reflux pipe and the liquid adding port. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 A schematic structural diagram of a continuous production organic fluoride polymerization device provided in an embodiment of the present utility model;

[0016] Figure 2 A schematic diagram of the internal structure of a static separation tank provided in an embodiment of the present utility model;

[0017] Figure 3 A schematic structural diagram of a rotary seal provided in an embodiment of the present utility model;

[0018] Figure 4 A schematic structural diagram of a separator provided in an embodiment of the present utility model.

[0019] Description of reference numerals:

[0020] 1. Polymerization reactor; 11. Feeding port; 12. Discharging port; 13. Liquid adding port; 14. Reflux pipe; 2. Standing separation tank; 21. Partition; 210. Connecting portion; 22. Primary separation chamber; 23. Secondary separation chamber; 24. Feeding port; 25. Liquid outlet; 3. Sealing element; 31. Rotating sealing body; 32. Opening portion; 33. Sealing portion; 34. Rotating drive unit; 35. Filter. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-4As shown, the embodiment of the present invention provides a continuous production organic fluoride polymerization device, including a polymerization reactor 1 and a static separation tank 2, the top of the polymerization reactor 1 is provided with a feeding port 11, the bottom of the polymerization reactor 1 is provided with a discharge port 12, the static separation tank 2 is horizontally placed at the bottom of the polymerization reactor 1, and at least one partition 21 is provided inside the static separation tank 2. The partition 21 divides the static separation tank 2 into a primary separation chamber 22 and a secondary separation chamber 23, and a connecting portion 210 is provided on the partition 21. A sealing member 3 is adjustably provided on the connecting portion 210, and the sealing member 3 has an open state for opening the connecting portion 210 and a closed state for closing the connecting portion 210. A feed port is provided at the top of the primary separation chamber 22, and the feed port is connected to the discharge port 12. A feed port 24 is provided at the bottom of the primary separation chamber 22 and the secondary separation chamber 23, and a liquid outlet 25 is provided at the top of the secondary separation chamber 23. A liquid addition port 13 is provided on the side wall of the polymerization reactor 1, and the liquid addition port 13 is connected to the liquid outlet 25 through a reflux pipe 14.

[0023] Specifically, the polymerization reactor 1 is used for conducting polymerization reaction of organic fluoride. A feeding port 11 is provided on the top of the polymerization reactor 1, through which the raw materials required for the polymerization reaction can be added to the interior of the polymerization reactor 1. A discharge port 12 is provided at the bottom of the polymerization reactor 1, through which the reactants, solvent and catalyst can be discharged. The number of the feeding port 11 and the discharge port 12 can be set as needed. The polymerization reactor 1 is a prior art and will not be described in detail. The standing separation tank 2 is arranged at the bottom of the polymerization reactor 1. The polymerization reactor 1 is arranged vertically, and the standing separation tank 2 is arranged horizontally. A partition 21 is arranged inside the standing separation tank 2. The partition 21 divides the standing separation tank 2 into a primary separation chamber 22 and a secondary separation chamber 23. The primary separation chamber 22 is used for the initial standing separation of the mixture of reactants, solvents and catalysts, and the secondary separation chamber 23 is used for the standing separation of the liquid mixture that has been standing. The partition 21 can be one, so that there is only one primary separation chamber 22 and the secondary separation chamber 23. The partition 21 can also be two, so that there is one primary separation chamber 22 and two secondary separation chambers 23.

[0024] In this embodiment, a connecting portion 210 is provided on the separator 21, and the connecting portion 210 is provided on the upper part of the separator 21, that is, the connecting portion 210 has a certain height from the bottom of the static separation tank 2, and the connecting portion 210 can be a connecting opening, through which the communication between the primary separation chamber 22 and the secondary separation chamber 23 is achieved. A feed port is provided on the top of the primary separation chamber 22, and the feed port is connected to the discharge port 12 of the polymerization reactor 1 through a connecting pipe. In this way, the mixture of reactants, solvents and catalysts in the polymerization reactor 1 can be transported to the static separation tank 2 through the feed port and the discharge port 12. In the separation tank 2, the bottom of the primary separation chamber 22 and the secondary separation chamber 23 are both provided with a feed port 24, and the top of the secondary separation chamber 23 is provided with a liquid outlet 25. The reactants separated in the primary separation chamber 22 and the secondary separation chamber 23 can be discharged through the feed port 24. A liquid addition port 13 is provided on the side wall of the polymerization reactor 1. The liquid addition port 13 is connected to the liquid outlet 25 through a reflux pipe 14. The solvent and catalyst separated in the secondary separation chamber 23 can be transported to the liquid addition port 13 through the liquid outlet 25. The solvent and catalyst separated in this way are repeatedly transported to the polymerization reactor 1 for use here.

[0025] In this embodiment, a seal 3 is provided on the partition 21, and the seal 3 corresponds to the connecting portion 210. The seal 3 has an open state and a closed state during use. In the closed state, the seal 3 closes and seals the connecting portion 210, and in the open state, the seal 3 opens the connecting portion 210. In this way, during use, the polymerization reactor 1 is used to carry out a polymerization reaction of an organic fluoride. After the polymerization reaction is completed, the mixture of reactants, solvent and catalyst is transported to the primary separation chamber 22. Raw materials can continue to be added to the polymerization reactor 1 for polymerization reaction. The mixture of reactants, solvent and catalyst is initially statically separated in the primary separation chamber 22. During this process, the seal 3 is in a closed state. When the primary separation chamber 22 is static, the seal 3 is operated to an open state. In this way, the mixed liquid of the solvent and catalyst in the upper layer of the primary separation chamber 22 is transported from the connecting portion 210 to the secondary separation chamber 23. After the mixed liquid enters the secondary separation chamber 23, the seal 3 continues to operate to a closed state. Reactants may exist in the mixed liquid. The mixed liquid continues to be statically separated in the secondary separation chamber 23. After separation, the solvent and catalyst in the upper layer are repeatedly transported to the polymerization reactor 1 through the liquid outlet 25, the reflux pipe 14 and the liquid adding port 13. The reactants in the primary separation chamber 22 and the secondary separation chamber 23 are output through the feed port 24.

[0026] The embodiment of the present invention provides a continuous production organic fluoride polymerization device, including a polymerization reactor 1 and a static separation tank 2, the static separation tank 2 is horizontally placed at the bottom of the polymerization reactor 1, and at least one partition 21 is provided inside the static separation tank 2. The partition 21 divides the static separation tank 2 into a primary separation chamber 22 and a secondary separation chamber 23. A connecting portion 210 is provided on the partition 21, and a sealing member 3 is adjustable on the connecting portion 210. The sealing member 3 has an open state for opening the connecting portion 210 and a closed state for closing the connecting portion 210. After the polymerization reaction of the organic fluoride in the polymerization reactor 1 is completed, the mixture of the reactants, the solvent and the catalyst can be initially statically separated in the primary separation chamber 22. Raw materials can continue to be added to the polymerization reactor 1 for polymerization reaction. The mixture of the reactants, the solvent and the catalyst is initially separated in the primary separation chamber 22. After the initial separation is completed, the mixed liquid continues to be statically separated in the secondary separation chamber 23. After separation, the solvent and catalyst in the upper layer can be repeatedly transported to the polymerization reactor 1 through the liquid outlet 25, the reflux pipe 14 and the liquid adding port 13.

[0027] In this embodiment, preferably, the seal 3 includes a rotating sealing body 31 rotatably mounted on the partition 21, and an opening portion 32 and a sealing portion 33 are provided on the rotating sealing body 31. In the open state, the opening portion 32 corresponds to the connecting portion 210, and in the sealed state, the sealing portion 33 corresponds to the connecting portion 210. The rotating sealing body 31 is arranged on the side of the partition 21 close to the secondary separation chamber 23, and a rotating drive unit 34 is provided on the top of the static separation tank 2. The partition 21 is driven by the rotating drive unit 34 and can rotate in the secondary separation chamber 23. The rotating drive unit 34 can be driven manually or by automatic control. For example, the rotating drive unit 34 can be a driving motor and a driving gear connected to the driving motor. The rotating sealing body 31 can be provided with circumferential teeth along the circumference, and the driving gear is engaged with the circumferential teeth. In this way, when the driving motor and the driving gear are working and rotating, the driving gear drives the rotating sealing body 31 to rotate.

[0028] In this embodiment, preferably, there are two opening parts 32, each opening part 32 includes an opening corresponding to the communicating part 210, and a filter screen 35 is provided on the opening. The mesh sizes of the filter screens 35 on the two opening parts 32 are different; the rotary sealing body 31 is driven to rotate and has three working positions: a first working position, a second working position and a third working position. When the rotary sealing body 31 rotates to the first working position, the sealing part 33 on the rotary sealing body 31 is in a sealed state corresponding to the communicating part 210, and the communicating part 210 is closed; when the rotary sealing body 31 rotates to the second working position, the first opening part 32 on the rotary sealing body 31 is in a first open state corresponding to the communicating part 210, and the communicating part 210 is opened. At this time, the mesh size of the filter screen 35 is larger; when the rotary sealing body 31 rotates to the third working position, the second opening part 32 on the rotary sealing body 31 is in a second open state corresponding to the communicating part 210, and the communicating part 210 is opened. At this time, the mesh size of the filter screen 35 is smaller, and the filtering effect is better.

[0029] In this embodiment, preferably, there are two partitions 21, and the static separation tank 2 of the two partitions 21 is divided into a primary separation chamber 22 and two secondary separation chambers 23, and the two secondary separation chambers 23 are respectively located on both sides of the primary separation chamber 22, and the two secondary separation chambers 23 are respectively provided with a liquid outlet 25, and the liquid outlet 25 is connected to the liquid filling port 13 through a reflux pipe 14, and a pump body is provided on the reflux pipe 14; in this way, during use, the two secondary separation chambers 23 can be used alternately, that is, when the primary separation chamber 22 is stationary, the seal 3 is operated to open one of the secondary separation chambers 23 (the left secondary separation chamber 23), so that the solvent in the upper layer of the primary separation chamber 22 and the mixed liquid of the catalyst are transported from the connecting portion 210 to the left secondary separation chamber 23, and the mixed liquid enters the left secondary separation chamber After 23, the seal 3 continues to operate to the closed state, and the mixed liquid continues to be statically separated in the left secondary separation chamber 23. Since the mixed liquid needs a certain amount of time in the left secondary separation chamber 23, when the first separation chamber 22 completes the static separation next time, the seal 3 is operated to open another secondary separation chamber 23 (the right secondary separation chamber 23). In this way, the mixed liquid of the solvent and the catalyst in the upper layer of the first separation chamber 22 is transported from the connecting part 210 to the right secondary separation chamber 23. After the mixed liquid enters the right secondary separation chamber 23, the seal 3 is operated to the closed state, and the mixed liquid continues to be statically separated in the right secondary separation chamber 23. Such staggered operation can increase the static separation time of the mixed liquid, so that the solvent and catalyst are fully separated from the reactants, and the effect of static separation is improved.

[0030] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A continuous production organic fluoride polymerization device, comprising a polymerization reactor, wherein the top of the polymerization reactor is provided with a feed port, and the bottom of the polymerization reactor is provided with a discharge port, characterized in that: It also includes a static separation tank, which is placed horizontally at the bottom of the polymerization reactor. At least one partition is provided inside the static separation tank, and the partition divides the static separation tank into a primary separation chamber and a secondary separation chamber. A connecting portion is provided on the partition, and a sealing portion is adjustably provided on the connecting portion. The sealing portion has an open state for opening the connecting portion and a closed state for closing the connecting portion. A feed port is provided on the top of the primary separation chamber, and the feed port is connected with the discharge port. A feed port is provided at the bottom of each of the primary separation chamber and the secondary separation chamber. A liquid outlet is provided on the top of the secondary separation chamber. A liquid adding port is provided on the side wall of the polymerization reactor, and the liquid adding port is connected with the liquid outlet through a reflux pipe.

2. The organic fluoride polymerization equipment according to claim 1, characterized in that: The sealing member includes a rotary sealing body rotatably mounted on the partition member, wherein the rotary sealing body is provided with an opening portion and a sealing portion. In the open state, the opening portion corresponds to the communicating portion, and in the sealed state, the sealing portion corresponds to the communicating portion.

3. The organic fluoride polymerization equipment according to claim 2, characterized in that: The rotary sealing body is arranged on a side of the partition close to the secondary separation chamber, a rotary driving unit is arranged on the top of the static separation tank, and the partition is driven by the rotary driving unit to rotate in the secondary separation chamber.

4. The organic fluoride polymerization equipment according to claim 2, characterized in that: There are two opening parts, each of which includes an opening corresponding to the communicating part, and a filter is provided on the opening.

5. The organic fluoride polymerization equipment according to claim 4, characterized in that: The mesh sizes of the filter screens on the two opening parts are different.

6. The organic fluoride polymerization equipment according to claim 1, characterized in that: There are two partitions, and the static separation tank is divided into one primary separation chamber and two secondary separation chambers by the two partitions. The two secondary separation chambers are respectively located on both sides of the primary separation chamber.

7. The organic fluoride polymerization equipment according to claim 6, characterized in that: The two secondary separation chambers are both provided with a liquid outlet, and the liquid outlets are both connected to the liquid adding port through the reflux pipe, and the reflux pipe is provided with a pump body.

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