Esterification reaction device for flame retardant TCPP

Abstract

The utility model relates to a flame retardant TCPP esterification reaction device, which belongs to the technical field of flame retardant production and comprises a processing base, and a processing reaction mechanism is arranged on the processing base. According to the flame retardant TCPP esterification reaction device, through the arrangement of the processing reaction mechanism, under the mutual cooperation of all structures on the processing base, materials needed for processing a flame retardant are quantitatively input in batches and parts, so that the situation that vortexes are generated in a circulating pipeline is effectively reduced, the use of a material circulating pump is more stable, and the service life of the material circulating pump is prolonged. A large amount of heat generated by processing is quickly dissipated, so that the self-polymerization condition of a TCPP product is effectively reduced, and the processing condition in the reaction kettle is monitored in real time under the cooperation of the auxiliary assembly, so that the dangerous condition in the processing process is effectively reduced, and the production quality and the production effect of a TCPP flame retardant are improved; and the safety performance of the machining device during use can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flame retardant production, in particular to a flame retardant TCPP esterification reaction device. Background Art

[0002] The flame retardant TCPP, whose chemical name is tris(2-chloropropyl) phosphate, is also known as tris(chloroisopropyl) phosphate. It is an organic phosphate compound with a colorless to light yellow liquid form and contains three 2-chloropropyl groups and one phosphate group. TCPP is mainly used for flame retardant materials, especially in the flame retardant modification of polymers such as polyurethane, polyester, polypropylene and polyvinyl chloride. Its flame retardant performance mainly comes from the phosphorus oxyacid released at high temperature, which then forms phosphate. When producing flame retardants, an esterification reaction device is required to synthesize the flame retardant.

[0003] In chemical production, since the reactants phosphorus oxychloride and propylene oxide are both highly active substances, when there is an excess of propylene oxide in the reaction system, self-polymerization is likely to occur, forming ether substances that are difficult to remove in the subsequent separation process. The reaction process in the reactor usually requires controlling the feeding method and heat distribution to ensure the efficiency and safety of the reaction. The traditional feeding method may cause local overheating, and the internal reaction generates a large amount of heat, thereby causing the TCPP product to self-polymerize. In addition, there are safety hazards when the product is generated, which is likely to affect the production efficiency of the TCPP flame retardant. Therefore, a flame retardant TCPP esterification reaction device is proposed to solve the above technical problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a flame retardant TCPP esterification reaction device, which has the advantages of material filling control, heat dispersion, safe use, high production efficiency, etc., and solves the problem that the traditional feeding method may cause local overheating, and the internal reaction generates a large amount of heat, thereby causing the TCPP product to self-polymerize, and the product also has safety hazards during its generation, which is easy to affect the production efficiency of the TCPP flame retardant.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flame retardant TCPP esterification reaction device, comprising a processing base, on which a processing reaction mechanism is arranged;

[0006] The processing reaction mechanism comprises a reactor fixedly mounted on the top of the processing base, a cooling box is arranged inside the reactor, a fixing frame is fixedly mounted on the inner top wall of the reactor, a driving motor is mounted on the fixing frame, a stirring shaft extending to the inside of the cooling box is fixedly mounted on the output shaft of the driving motor, and a material circulation pump is fixedly mounted on the left side of the reactor;

[0007] A connecting pipe fixedly connected to the reactor is fixedly installed at the feed end of the material circulation pump, a material conveying pipe fixedly connected to the reactor is fixedly installed at the discharge end of the material circulation pump, a first filling pipe is fixedly installed on the left side of the connecting pipe, a second filling pipe is fixedly installed on the left side of the material conveying pipe, manual valves and check valves are arranged on the outside of the first filling pipe and the second filling pipe, and auxiliary components are arranged inside the reactor.

[0008] Furthermore, the auxiliary component includes a discharge pipe fixedly installed on the left side of the connecting pipe, a pressure control seat is provided on the top of the reactor, a temperature sensor is provided inside the reactor, a radar level gauge is provided on the fixed frame, a grounding rod is provided at the bottom of the reactor, and a grounding connecting wire fixedly connected to the grounding rod is fixedly installed on the outer side of the second filling pipe.

[0009] Furthermore, the cooling box is provided with a cooling assembly located at the back of the reactor, and the cooling assembly is composed of a heat exchanger, a connecting pipe, a connecting piece and a control system.

[0010] Furthermore, a sealing hole is opened on the left side of the reactor, and the connecting pipe and the material conveying pipe are fixedly connected to the reactor through the sealing hole.

[0011] Furthermore, a cover cap is provided on a side of the discharge pipe away from the connecting pipe, and the cover cap is threadedly connected to the discharge pipe through a thread groove.

[0012] Furthermore, the interior of the pressure control seat is composed of a pressure sensor, a pressure control valve and an exhaust pipe.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The flame retardant TCPP esterification reaction device, through the processing reaction mechanism, cooperates with each other between the structures on the processing base, and inputs the materials required for processing the flame retardant in batches, parts, and in a quantitative manner, thereby effectively reducing the eddy current generated in the circulation pipeline, making the use of the material circulation pump more stable, and quickly dissipating a large amount of heat generated by the processing, thereby effectively reducing the self-polymerization of the TCPP product, and with the cooperation of the auxiliary components, the processing situation inside the reactor is monitored in real time, thereby effectively reducing the dangerous situation in the processing process, so that the production quality and production effect of the TCPP flame retardant are improved, and it is helpful to improve the safety performance of the processing device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic cross-sectional view of the structure of the utility model;

[0016] Figure 2This is a schematic diagram of the front view of the structure of the utility model;

[0017] Figure 3 It is a three-dimensional schematic diagram of the local structure of the utility model.

[0018] In the figure: 1. Processing base; 2. Reactor; 3. Cooling box; 4. Fixed frame; 5. Driving motor; 6. Stirring shaft; 7. Material circulation pump; 8. Connecting pipe; 9. Material conveying pipe; 10. First filling pipe; 11. Second filling pipe; 12. Manual valve; 13. Check valve; 14. Discharge pipe; 15. Pressure control seat; 16. Temperature sensor; 17. Radar level gauge; 18. Grounding rod; 19. Grounding connecting wire. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 3 A flame retardant TCPP esterification reaction device in this embodiment includes a processing base 1, and a processing reaction mechanism is arranged on the processing base 1.

[0021] See also Figure 1 , Figure 2 and Figure 3 The processing reaction mechanism includes a reactor 2 fixedly mounted on the top of a processing base 1, a cooling box 3 is arranged inside the reactor 2, a cooling component located on the back of the reactor 2 is arranged on the cooling box 3, and the cooling component is composed of a heat exchanger, a connecting pipe, a connecting piece and a control system. When the cooling component generates heat for the material inside the cooling box 3, the control system is used to control the heat exchanger to achieve rapid cooling of the inside of the cooling box 3.

[0022] Among them, a fixing frame 4 is fixedly installed on the inner top wall of the reactor 2, a driving motor 5 is installed on the fixing frame 4, a stirring shaft 6 extending to the inside of the cooling box 3 is fixedly installed on the output shaft of the driving motor 5, and a material circulation pump 7 is fixedly installed on the left side of the reactor 2, and the circulation flow of the material inside the reactor 2 is realized by the material circulation pump 7.

[0023] Among them, the feeding end of the material circulation pump 7 is fixedly installed with a connecting pipe 8 fixedly connected to the reactor 2, and the discharging end of the material circulation pump 7 is fixedly installed with a material conveying pipe 9 fixedly connected to the reactor 2. A sealing hole is opened on the left side of the reactor 2, and the connecting pipe 8 and the material conveying pipe 9 are fixedly connected to the reactor 2 through the sealing hole, which is convenient for the installation of the connecting pipe 8 and the material conveying pipe 9 through the sealing hole, so as to facilitate the material circulation pump 7 to circulate and convey the material inside the reactor 2.

[0024] Among them, a first filling pipe 10 is fixedly installed on the left side of the connecting pipe 8, and a second filling pipe 11 is fixedly installed on the left side of the material conveying pipe 9. Manual valves 12 and check valves 13 are arranged on the outsides of the first filling pipe 10 and the second filling pipe 11, and auxiliary components are arranged inside the reactor 2.

[0025] In this embodiment, the auxiliary component includes a discharge pipe 14 fixedly installed on the left side of the connecting pipe 8. A cap is provided on the side of the discharge pipe 14 away from the connecting pipe 8, and the cap is threadedly connected to the discharge pipe 14 through a threaded groove, so that the opening and closing of the discharge pipe 14 can be conveniently controlled by the cap, thereby facilitating the discharge of the flame retardant produced inside the reactor 2.

[0026] Among them, a pressure control seat 15 is arranged on the top of the reactor 2, and the interior of the pressure control seat 15 is composed of a pressure sensor, a pressure control valve and an exhaust pipe, so that the pressure control seat 15 can be used to regulate the internal pressure of the reactor 2 when it is too high, thereby improving the safety and stability of flame retardant production. A temperature sensor 16 is arranged inside the reactor 2, a radar level gauge 17 is arranged on the fixed frame 4, a grounding rod 18 is arranged at the bottom of the reactor 2, and a grounding connecting wire 19 fixedly connected to the grounding rod 18 is fixedly installed on the outer side of the second filling pipe 11. The static electricity generated during the filling or transportation of materials is discharged through the grounding rod 18 and the grounding connecting wire 19, thereby avoiding the occurrence of combustion and explosion accidents.

[0027] It should be noted that the flame retardant TCPP esterification reaction device, through the processing reaction mechanism set up, with the mutual cooperation between the various structures on the processing base 1, the materials required for processing the flame retardant are divided into batches, parts, and quantitative input, thereby effectively reducing the generation of eddy currents inside the circulation pipeline, making the use of the material circulation pump 7 more stable, and quickly dissipating the large amount of heat generated by the processing, thereby effectively reducing the self-polymerization of the TCPP product, and with the cooperation of the auxiliary components, the processing conditions inside the reactor 2 are monitored in real time, thereby effectively reducing dangerous conditions during the processing, thereby improving the production quality and production effect of the TCPP flame retardant, and helping to improve the safety performance of the processing device when in use.

[0028] The working principle of the above embodiment is:

[0029] The flame retardant TCPP esterification reaction device, when in use, injects propylene oxide into the material conveying pipe 9 through the second filling pipe 11, so that it enters the cooling box 3 inside the reactor 2, then starts the material circulation pump 7 to convey the material inside the connecting pipe 8, while conveying, injects phosphorus oxychloride into the connecting pipe 8 through the first filling pipe 10, and under the action of the material circulation pump 7, conveys it to the cooling box 3 to react chemically with propylene oxide, and synchronously starts the driving motor 5 to drive the stirring shaft 6 to make the reaction more uniform, and at the same time uses the cooling box 3 to cool the large amount of heat generated during the reaction, so as to avoid the flame retardant product from self-polymerization;

[0030] When processing the flame retardant, the pressure control seat 15 is used to monitor the internal air pressure of the reactor 2 to avoid safety accidents. At the same time, the radar level gauge 17 inside the reactor 2 monitors the internal liquid level of the cooling box 3, so as to timely grasp the internal liquid level of the reactor 2 to prevent excessive overflow and the finished product from being emptied. In addition, during use, the reactor 2 uses the grounding rod 18 and the grounding connecting line 19 to avoid static electricity during material filling and transportation, thereby avoiding the occurrence of combustion and explosion accidents, thereby improving the safety of flame retardant production and improving the quality of the product.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flame retardant TCPP esterification reaction device, comprising a processing base (1), characterized in that: The processing base (1) is provided with a processing reaction mechanism; The processing reaction mechanism comprises a reaction kettle (2) fixedly mounted on the top of a processing base (1); a cooling box (3) is arranged inside the reaction kettle (2); a fixing frame (4) is fixedly mounted on the inner top wall of the reaction kettle (2); a driving motor (5) is mounted on the fixing frame (4); a stirring shaft (6) extending into the interior of the cooling box (3) is fixedly mounted on the output shaft of the driving motor (5); and a material circulation pump (7) is fixedly mounted on the left side of the reaction kettle (2); A connecting pipe (8) fixedly connected to the reactor (2) is fixedly installed at the feed end of the material circulation pump (7), a material conveying pipe (9) fixedly connected to the reactor (2) is fixedly installed at the discharge end of the material circulation pump (7), a first filling pipe (10) is fixedly installed on the left side of the connecting pipe (8), a second filling pipe (11) is fixedly installed on the left side of the material conveying pipe (9), manual valves (12) and check valves (13) are arranged on the outside of the first filling pipe (10) and the second filling pipe (11), and auxiliary components are arranged inside the reactor (2).

2. The flame retardant TCPP esterification reaction device according to claim 1, characterized in that: The auxiliary component comprises a discharge pipe (14) fixedly mounted on the left side of the connecting pipe (8); a pressure control seat (15) is arranged on the top of the reactor (2); a temperature sensor (16) is arranged inside the reactor (2); a radar level gauge (17) is arranged on the fixed frame (4); a grounding rod (18) is arranged at the bottom of the reactor (2); and a grounding connection line (19) fixedly mounted on the outer side of the second filling pipe (11) and fixedly connected to the grounding rod (18).

3. The flame retardant TCPP esterification reaction device according to claim 1, characterized in that: The cooling box (3) is provided with a cooling component located at the back of the reaction kettle (2), and the cooling component is composed of a heat exchanger, a connecting pipe, a connecting piece and a control system.

4. The flame retardant TCPP esterification reaction device according to claim 1, characterized in that: A sealing hole is provided on the left side of the reaction kettle (2), and the connecting pipe (8) and the material conveying pipe (9) are both fixedly connected to the reaction kettle (2) through the sealing hole.

5. The flame retardant TCPP esterification reaction device according to claim 2, characterized in that: A cover cap is provided on the side of the discharge pipe (14) away from the connecting pipe (8), and the cover cap is threadedly connected to the discharge pipe (14) via a thread groove.

6. The flame retardant TCPP esterification reaction device according to claim 2, characterized in that: The interior of the pressure control seat (15) is composed of a pressure sensor, a pressure control valve and an exhaust pipe.

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