Production system of triglycidyl isocyanurate

Abstract

The utility model belongs to the technical field of compound preparation, and particularly relates to a production system of triglycidyl isocyanurate, which comprises a cyclization kettle, a feeding pipeline connected to the top of the cyclization kettle, a nitrogen pipeline connected to the top of the cyclization kettle, an emptying pipeline and a sodium hydroxide storage tank, a powder flowmeter and a proportional valve are arranged on a pipeline between the sodium hydroxide storage tank and the cyclization kettle, a coil pipe is arranged on the inner wall of the cyclization kettle, a stirrer is arranged in the cyclization kettle, the top of the stirrer penetrates through the cyclization kettle and is connected with a motor, a discharge port is formed in the bottom of the cyclization kettle, and the discharge port is connected with a filter press. The filter press is connected with a mother liquid storage tank and a washing liquid storage tank, one side, far away from the washing liquid storage tank, of the filter press is connected with a dryer, and a vacuum pump is arranged on the nitrogen pipeline. The equipment disclosed by the utility model is simple in structure and small in occupied area, large-scale industrial production can be realized, the production efficiency can be improved, and the production cost can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of compound preparation, and specifically relates to a production system of triglycidyl isocyanurate. Background Art

[0002] The production of triglycidyl isocyanurate requires the steps of esterification, cyclization and fine treatment. The cyclization reaction can directly affect the yield of triglycidyl isocyanurate. After the cyclization reaction, the mother liquor in the cyclization reaction liquid is removed to facilitate the subsequent fine treatment.

[0003] The reaction conditions required for the cyclization reaction are relatively harsh, and a good reaction environment needs to be selected for the reaction. However, the commonly used cyclization reaction device does not react sufficiently in the process of preparing triglycidyl isocyanurate, thereby reducing the yield of triglycidyl isocyanurate. At the same time, the removal of the mother liquor increases the workload and the production efficiency is low. Utility Model Content

[0004] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a production system of triglycidyl isocyanurate, improve the production efficiency and yield of triglycidyl isocyanurate, improve the continuity of the reaction device, and reduce the workload.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The production system of triglycidyl isocyanurate described in the utility model comprises a cyclization kettle, a feed pipeline is connected to the top of the cyclization kettle, a nitrogen pipeline, an emptying pipeline and a sodium hydroxide storage tank are connected to the top of the cyclization kettle, a powder flow meter and a quantitative valve are arranged on the pipeline between the sodium hydroxide storage tank and the cyclization kettle, a coil is arranged on the inner wall of the cyclization kettle, an agitator is arranged in the cyclization kettle, a motor is connected to the top of the agitator penetrating the cyclization kettle, a discharge port is arranged at the bottom of the cyclization kettle, a filter press is connected to the discharge port, the filter press is connected to a mother liquid storage tank and a washing liquid storage tank, a dryer is connected to the side of the filter press away from the washing liquid storage tank, and a vacuum pump is arranged on the nitrogen pipeline.

[0007] in:

[0008] The stirrer comprises a stirring shaft and a plurality of stirring paddles at the bottom of the stirring shaft, and the top end of the stirring shaft passes through the cyclization kettle and is connected with the output end of the motor.

[0009] The bottom of the coil is connected with a circulating water inlet, and the top of the coil is connected with a circulating water outlet.

[0010] The side of the washing liquid storage tank and the side of the mother liquid storage tank are both connected and provided with glass level gauges.

[0011] The top of the filter press is connected with a fan.

[0012] The washing liquid storage tank is connected to the filter press through a pipeline, a delivery pump is arranged on the pipeline, and the bottom of the washing liquid storage tank is connected to the top of the washing liquid storage tank.

[0013] A discharge pipe is arranged at the bottom of the mother liquid storage tank.

[0014] The filter press comprises a filter chamber and a filtrate plate at the bottom of the filter chamber, the filter chamber and the filtrate plate are both connected to a mother liquid storage tank, and the filter chamber is connected to an inlet of a dryer.

[0015] The washing liquid storage tank is connected to the lower part of the filter chamber, and the mother liquid storage tank is connected to the upper part and the lower part of the filter chamber.

[0016] The dryer is a rake-type dryer, the top of the dryer is connected to a fan, and a powder discharge port is arranged on the dryer.

[0017] The beneficial effects of the utility model are:

[0018] The utility model strengthens the cyclization reaction of triglycidyl isocyanurate by adjusting the feeding mode of sodium hydroxide, and can timely perform temperature control by adjusting the temperature of circulating water in the coil, effectively controls the progress of the cyclization reaction, improves the yield of triglycidyl isocyanurate, enables the generated cyclization reaction liquid to remain stable in the subsequent filter pressing process, and realizes continuous production. The equipment structure of the utility model is simple, the floor space is small, and large-scale industrial production can be realized. The utility model can improve production efficiency and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] In the figure: 1. cyclization reactor; 2. coil; 3. feed pipeline; 4. sodium hydroxide storage tank; 5. powder flow meter; 6. dosing valve; 7. motor; 8. emptying pipeline; 9. agitator; 10. filter press; 11. fan; 12. mother liquor storage tank; 13. dryer; 14. washing liquid storage tank; 15. discharge pipeline; 16. discharge port; 17. powder discharge port; 18. nitrogen pipeline; 1001, filter chamber; 1002, filtrate tray. DETAILED DESCRIPTION

[0021] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0022] Example 1

[0023] like Figure 1As shown, the production system of triglycidyl isocyanurate described in the utility model includes a cyclization kettle 1, a feed pipeline 3 is connected to the top of the cyclization kettle 1, a nitrogen pipeline 18, an emptying pipeline 8 and a sodium hydroxide storage tank 4 are connected to the top of the cyclization kettle 1, a powder flowmeter 5 and a quantitative valve 6 are arranged on the pipeline between the sodium hydroxide storage tank 4 and the cyclization kettle 1, a coil 2 is arranged on the inner wall of the cyclization kettle 1, an agitator 9 is arranged in the cyclization kettle 1, the top of the agitator 9 passes through the cyclization kettle 1 and is connected to a motor 7, a discharge port 16 is arranged at the bottom of the cyclization kettle 1, the discharge port 16 is connected to a filter press 10, the filter press 10 is connected to a mother liquid storage tank 12 and a washing liquid storage tank 14, the filter press 10 is connected to a dryer 13 on the side away from the washing liquid storage tank 14, and a vacuum pump is arranged on the nitrogen pipeline 18.

[0024] A vacuum pump is arranged on the nitrogen pipeline 18 to regulate the pressure in the cyclization reactor 1 .

[0025] The powder flow meter 5 and the quantitative valve 6 are used together to feed sodium hydroxide into the cyclization reactor 1 in batches and in a quantitative manner.

[0026] The filter press 10 and the dryer 13 can remove the mother liquid in the cyclization reaction liquid.

[0027] The stirrer 9 includes a stirring shaft and a plurality of stirring paddles at the bottom of the stirring shaft. The top end of the stirring shaft passes through the cyclization kettle 1 and is connected to the output end of the motor 7 .

[0028] The bottom of the coil 2 is connected to a circulating water inlet, and the top of the coil 2 is connected to a circulating water outlet.

[0029] The side of the washing liquid storage tank 14 and the side of the mother liquid storage tank 12 are both connected and provided with glass level gauges.

[0030] The glass level gauge can measure the liquid levels in the washing liquid storage tank 14 and the mother liquid storage tank 12 .

[0031] A fan 11 is connected to the top of the filter press 10 .

[0032] The filter press has the advantages of high efficiency, energy saving, strong adaptability, etc. The fan 11 can accelerate the separation of the mother liquid on the filter cake.

[0033] The washing liquid storage tank 14 is connected to the filter press 10 through a pipeline, a delivery pump is provided on the pipeline, and the bottom of the washing liquid storage tank 14 is connected to the top of the washing liquid storage tank 14 .

[0034] The washing liquid storage tank 14 can perform self-circulation flow to ensure uniform pressure distribution in the washing liquid storage tank 14 .

[0035] A discharge pipe 15 is provided at the bottom of the mother liquid storage tank 12 .

[0036] The filter press 10 includes a filter chamber 1001 and a filtrate pan 1002 at the bottom of the filter chamber 1001 . The filter chamber 1001 and the filtrate pan 1002 are both connected to the mother liquid storage tank 12 . The filter chamber 1001 is connected to the inlet of the dryer 13 .

[0037] The washing liquid storage tank 14 is connected to the lower part of the filter chamber 1001 , and the mother liquid storage tank 12 is connected to the upper part and the lower part of the filter chamber 1001 .

[0038] The washing liquid in the washing liquid storage tank 14 can wash the reaction product, and the mother liquor after washing will also be uniformly transported to the mother liquor storage tank 12.

[0039] The dryer 13 is a rake dryer, the top of which is connected to the fan 11, and a powder discharge port 17 is provided on the dryer 13. The filter cake after the filter press can be crushed and dried in the rake dryer, and then discharged through the powder discharge port 17.

[0040] Working principle and process:

[0041] When the cyclization reaction is carried out, the reaction raw materials are added to the cyclization kettle 1 through the feed pipe 3, and 30°C circulating water is introduced into the coil 2 to ensure that the temperature of the reaction raw materials is about 30°C. Then, the pressure in the cyclization kettle 1 is adjusted to -101kPa through a vacuum pump, and then the required sodium hydroxide is added to the cyclization kettle 1 in batches through the powder flowmeter 5 and the quantitative valve 6, and the temperature in the coil 2 is adjusted to 40°C to ensure that the temperature of the material in the cyclization kettle 1 is about 35°C, and then the reaction is carried out for 1-2h to obtain a cyclization reaction liquid; nitrogen is filled into the cyclization kettle 1 to 200kPa and the pressure is maintained, and the cyclization reaction liquid enters the filter press 10 from the discharge port 16 for filter pressing. During the filter pressing, the washing liquid in the washing liquid storage tank 14 is transported to the filter press 10 to wash the filter cake, the mother liquor is uniformly transported to the mother liquor storage tank 12, and the filter cake is uniformly transported to the dryer 13 for crushing and drying. During the filter pressing and drying process, air is blown by the fan 11 to accelerate the drying efficiency of the material.

Claims

1. A production system of triglycidyl isocyanurate, comprising a cyclization kettle (1), wherein the top of the cyclization kettle (1) is connected to a feed pipeline (3), characterized in that: The top of the cyclization kettle (1) is connected to a nitrogen pipeline (18), an exhaust pipeline (8) and a sodium hydroxide storage tank (4); a powder flow meter (5) and a quantitative valve (6) are arranged on the pipeline between the sodium hydroxide storage tank (4) and the cyclization kettle (1); a coil (2) is arranged on the inner wall of the cyclization kettle (1); an agitator (9) is arranged in the cyclization kettle (1); the top of the agitator (9) passes through the cyclization kettle (1) and is connected to a motor (7); a discharge port (16) is arranged at the bottom of the cyclization kettle (1); the discharge port (16) is connected to a filter press (10); the filter press (10) is connected to a mother liquid storage tank (12) and a washing liquid storage tank (14); a dryer (13) is connected to the side of the filter press (10) away from the washing liquid storage tank (14); and a vacuum pump is arranged on the nitrogen pipeline (18).

2. The production system of triglycidyl isocyanurate according to claim 1, characterized in that: The stirrer (9) comprises a stirring shaft and a plurality of stirring paddles at the bottom of the stirring shaft. The top end of the stirring shaft passes through the cyclization kettle (1) and is connected to the output end of the motor (7).

3. The production system of triglycidyl isocyanurate according to claim 1, characterized in that: The bottom of the coil (2) is connected to a circulating water inlet, and the top of the coil (2) is connected to a circulating water outlet.

4. The production system of triglycidyl isocyanurate according to claim 1, characterized in that: The side of the washing liquid storage tank (14) and the side of the mother liquid storage tank (12) are both connected and provided with a glass level gauge.

5. The production system of triglycidyl isocyanurate according to claim 1, characterized in that: A fan (11) is connected to the top of the filter press (10).

6. The production system of triglycidyl isocyanurate according to claim 1, characterized in that: The washing liquid storage tank (14) is connected to the filter press (10) via a pipeline, a delivery pump is provided on the pipeline, and the bottom of the washing liquid storage tank (14) is connected to the top of the washing liquid storage tank (14).

7. The production system of triglycidyl isocyanurate according to claim 1, characterized in that: A discharge pipe (15) is provided at the bottom of the mother liquid storage tank (12).

8. The production system of triglycidyl isocyanurate according to claim 1, characterized in that: The filter press (10) comprises a filter chamber (1001) and a filtrate tray (1002) at the bottom of the filter chamber (1001); the filter chamber (1001) and the filtrate tray (1002) are both connected to a mother liquid storage tank (12); and the filter chamber (1001) is connected to an inlet of a dryer (13).

9. The production system of triglycidyl isocyanurate according to claim 1, characterized in that: The washing liquid storage tank (14) is connected to the lower part of the filter chamber (1001), and the mother liquid storage tank (12) is connected to the upper part and the lower part of the filter chamber (1001).

10. The production system of triglycidyl isocyanurate according to claim 1, characterized in that: The dryer (13) is a rake-type dryer. The top of the dryer (13) is connected to the fan (11). The dryer (13) is provided with a powder discharge port (17).

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