Piperazine pyrophosphate production device

Abstract

The utility model relates to a piperazine pyrophosphate production device, which belongs to the field of chemical production equipment, the piperazine pyrophosphate production device comprises a kneading machine, a reaction kettle and a centrifugal machine, a mold temperature controller is arranged beside the kneading machine, water heated by the mold temperature controller enters a reaction bin jacket of the kneading machine to heat and cool the reaction bin, and the centrifugal machine is connected with the kneading machine. Piperazine pyrophosphate is synthesized in a reaction kettle, a reaction kettle jacket is arranged in the reaction kettle, hot water or cold water is introduced from a water inlet pipe, water can be recycled from a water outlet pipe, and the interior of the reaction kettle can be heated or cooled so as to meet the temperature requirement of piperazine pyrophosphate during synthesis, and materials treated by the reaction kettle enter a centrifugal machine to be subjected to dehydration treatment. According to the utility model, after kneading operation, the materials enter the reaction kettle for synthesis, after synthesis, the materials enter the centrifugal machine for dehydration treatment, and the jackets are arranged in the kneading machine and the reaction kettle, so that liquids with different temperatures can enter the kneading machine and the reaction kettle to interfere with the temperatures in the kneading machine and the reaction kettle.

Description

Technical Field

[0001] The utility model belongs to the field of chemical production equipment, and specifically relates to a piperazine pyrophosphate production device. Background Art

[0002] Piperazine pyrophosphate is used as a flame retardant for synthetic resins due to its excellent flame retardancy. This flame retardant not only has excellent flame retardancy, but also has excellent effects on improving powder properties or hygroscopicity. When added to the resin, the change in resistance is small. Piperazine pyrophosphate PIP is mainly used as a carbonizing agent for the flame retardancy of polypropylene resins and plastics. Currently, halogen-free nitrogen-phosphorus flame retardants are key products developed in the field of flame retardant applications. Piperazine pyrophosphate is an excellent nitrogen-phosphorus flame retardant. It exhibits good performance in polymer materials such as polyolefins and nylon. The main method for the current industrial production of piperazine pyrophosphate is to heat piperazine phosphate for a long time at above 200°C to perform a dehydration reaction of piperazine phosphate.

[0003] When performing this step of reaction, it is necessary to use equipment that can heat and stir for a long time. This equipment has a slow stirring speed. During use, in order to ensure that the dehydration reaction of piperazine phosphate is complete, it is necessary to maintain a long heating and stirring time. In addition, after the reaction is completed, the piperazine pyrophosphate product needs to be taken out from the equipment before piperazine phosphate can be added to the equipment to produce the next batch of piperazine pyrophosphate; therefore, the use of such equipment has the problems of long production time and low production efficiency of piperazine pyrophosphate, and the existing production equipment is not easy to control the production temperature, resulting in production results that are not as expected. Utility Model Content

[0004] In order to overcome the problems existing in the background technology, the utility model discloses a piperazine pyrophosphate production device, which includes a kneader, a reactor, and a centrifuge. A mold temperature controller is arranged beside the kneader. Water heated at the mold temperature controller enters into the jacket of the reaction chamber of the kneader to heat up and cool down the reaction chamber. After being processed by the kneader, the water enters into the reaction chamber. The piperazine pyrophosphate is synthesized in the reactor. A reactor jacket is arranged inside the reactor. Hot water or cold water is introduced from a water inlet pipe. Water can be recovered from a water outlet pipe. The temperature inside the reactor can be heated or cooled to meet the temperature requirement of the piperazine pyrophosphate during synthesis. The material after being processed by the reactor enters into the centrifuge for dehydration treatment. The utility model enters into the reactor for synthesis after the kneading operation, and enters into the centrifuge for dehydration treatment after synthesis. Jackets are arranged inside the kneader and the reactor, and liquids of different temperatures can enter to intervene in the temperature of the kneader and the reactor.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] The piperazine pyrophosphate production device comprises a kneader, a first connecting pipe, a reactor, a second connecting pipe, and a centrifuge, wherein the kneader is connected to the reactor through the first connecting pipe, and the reactor is connected to the centrifuge through the second connecting pipe;

[0007] The kneading machine includes a mold temperature controller, an output end, a reaction chamber, a driving motor, a coupling, a top cover, a stirring paddle, and a reaction chamber jacket. The mold temperature controller is connected to the reaction chamber, the top cover is connected to the driving motor, the stirring paddle is arranged inside the reaction chamber, the reaction chamber rubber sleeve is arranged inside the reaction chamber, and the driving motor is connected to the coupling;

[0008] The reactor comprises a reactor jacket, an inner reactor body, a reactor feed port, a stirring roller, a stirring motor, a water inlet pipe, and a water outlet pipe. The reactor jacket is arranged inside the reactor, the inner reactor body is arranged inside the reactor, the reactor feed port is arranged on the top of the reactor, the stirring roller is arranged inside the inner reactor body, the stirring motor is connected to the stirring roller, the water inlet pipe is connected to the reactor, and the water outlet pipe is connected to the reactor;

[0009] The centrifuge comprises a centrifuge outer bin, a centrifuge kettle, a second drive motor, a centrifuge feed port, a liquid discharge pipe, a discharge port, and a screw feeder. The centrifuge kettle is arranged inside the centrifuge outer bin, the second drive motor is located beside the centrifuge outer bin, the centrifuge feed port is arranged at the top of the centrifuge outer bin, the liquid discharge pipe is located beside the centrifuge outer bin, the discharge port is located at the bottom of the centrifuge outer bin, and the screw feeder is connected to the discharge port.

[0010] The bottom of the kneading machine, the reaction kettle and the centrifuge are provided with brackets.

[0011] The first connecting pipe is provided with a lifting pump, and the second connecting pipe is provided with a connecting pipe.

[0012] The output end is communicated with the jacket of the reaction chamber, the water inlet pipe and the water outlet pipe are communicated with the jacket of the reaction kettle, and the liquid outlet pipe is connected with the jacket of the centrifuge.

[0013] A distribution box is arranged beside the kneading machine.

[0014] One end of the first connecting pipe is connected to the bottom of the reaction tank, and the other end is connected to the inner kettle body. One end of the second connecting pipe is connected to the bottom of the inner kettle body, and the other end is located at the top of the feed port.

[0015] The beneficial effects of the utility model are as follows: the piperazine pyrophosphate production device comprises a kneader, a reactor and a centrifuge, a mold temperature controller is arranged beside the kneader, water heated at the mold temperature controller enters into the jacket of the reaction chamber of the kneader to heat up and cool down the reaction chamber, and enters into the reaction chamber after being processed by the kneader, the piperazine pyrophosphate is synthesized in the reactor, a reactor jacket is arranged inside the reactor, hot water or cold water is introduced from the water inlet pipe, water can be recovered from the water outlet pipe, the inside of the reactor can be heated up or cooled down to meet the temperature requirement of the piperazine pyrophosphate during synthesis, the material after the reactor treatment enters into the centrifuge for dehydration treatment, the utility model enters into the reactor for synthesis after the kneading operation, and enters into the centrifuge for dehydration treatment after synthesis, the kneader and the reactor are both provided with jackets, liquids of different temperatures can enter, and the temperature in the kneader and the reactor is intervened. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] In the figure, 1-kneader, 2-bracket, 3-first connecting pipe, 4-reactor, 5-second connecting pipe, 6-centrifuge, 7-mold temperature controller, 8-output end, 9-reaction chamber, 10-first drive motor, 11-top cover, 12-stirring paddle, 13-distribution cabinet, 14-reaction chamber jacket, 15-coupling, 16-reactor jacket, 17-inner kettle body, 18-reactor feed port, 19-stirring roller, 20-stirring motor, 21-water inlet pipe, 22-water outlet pipe, 23-centrifuge outer chamber, 24-centrifuge, 25-second drive motor, 26-centrifuge feed port, 27-liquid outlet pipe, 28-discharge port, 29-screw feeder. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned objectives, technical solutions and beneficial effects clearer, the present invention is described in detail below with reference to the accompanying drawings.

[0019] like Figure 1As shown, the piperazine pyrophosphate production device includes a kneader 1, a first connecting pipe 3, a reactor 4, a second connecting pipe 5, and a centrifuge 6. The kneader 1 is connected to the reactor 4 through the first connecting pipe 3, and the reactor 4 is connected to the centrifuge 6 through the second connecting pipe 5. A lifting pump is arranged on the first connecting pipe 3, and a lifting pump is arranged on the second connecting pipe 5. The kneader 1 includes a mold temperature controller 7, an output end 8, a reaction chamber 9, a driving motor, a coupling 15, a top cover 11, a stirring paddle 12, and a reaction chamber jacket 14. The mold temperature controller 7 is connected to the reaction chamber 9, the top cover 11 is connected to the driving motor, the stirring paddle 12 is arranged inside the reaction chamber 9, the reaction chamber 9 rubber sleeve is arranged inside the reaction chamber 9, the driving motor is connected to the coupling 15, the output end 8 is connected to the reaction chamber jacket 14, the water inlet pipe 21 and the water outlet pipe 22 are connected to the reactor jacket 16, the liquid outlet pipe 27 is connected to the centrifuge 6 jacket, and a distribution box is arranged on the side of the kneader 1. The reactor 4 includes a reactor jacket 16, an inner reactor body 17, a feed port, a stirring roller 19, a stirring motor 20, a water inlet pipe 21, and a water outlet pipe 22. The reactor jacket 16 is arranged inside the reactor 4, the inner reactor body 17 is arranged inside the reactor 4, the feed port is arranged at the top of the reactor 4, the stirring roller 19 is arranged inside the inner reactor body 17, the stirring motor 20 is connected to the stirring roller 19, the water inlet pipe 21 is connected to the reactor 4, and the water outlet pipe 22 is connected to the reactor 4; the centrifugal The machine 6 includes a centrifuge outer bin 23, a centrifuge kettle 24, a second drive motor 25, a feed port, a liquid discharge pipe 27, a discharge port 28, and a screw feeder 29. The centrifuge kettle 24 is arranged inside the centrifuge outer bin 23, the second drive motor 25 is located beside the centrifuge outer bin 23, the feed pipe is arranged at the top of the centrifuge outer bin 23, the liquid discharge pipe 27 is located beside the centrifuge outer bin 23, the discharge port 28 is located at the bottom of the centrifuge outer bin 23, and the screw feeder 29 is connected to the discharge port 28. The kneading machine 1, the reactor 4, and the centrifuge 6 are provided with a bracket 2 at the bottom, and the bracket 2 has the same height. One end of the first connecting pipe 3 is connected to the bottom of the reaction tank, and the other end is connected to the inner kettle body 17. One end of the second connecting pipe 5 is connected to the bottom of the inner kettle body 17, and the other end is located at the top of the feed port.

[0020] The piperazine pyrophosphate production device comprises a kneader 1, a reactor 4, and a centrifuge 6. The materials for producing piperazine pyrophosphate are uniformly mixed in the kneader 1. The materials are added into the reaction chamber 9 of the kneader 1 from the top cover 11 of the kneader 1, and enter the inner kettle body 17 of the reactor 4 from the first connecting pipe 3 for internal processing. Other materials for synthesizing piperazine pyrophosphate are added from the feed inlet 18 of the reactor, and piperazine pyrophosphate is synthesized in the reactor 4. The piperazine pyrophosphate synthesized by the reaction enters the centrifuge from the second connecting pipe 5. The kneading machine 1 is provided with a mold temperature controller 7, and the water heated at the mold temperature controller 7 enters the reaction chamber jacket 14 of the kneading machine 1 to heat and cool the reaction chamber 9. A temperature display is provided on the side of the reaction chamber 9 to display the temperature in the reaction chamber 9. Two pipe bodies can be provided in the output end 8, respectively for water inlet and water outlet. The two pipe bodies are connected to the reaction chamber jacket 14, and the reaction chamber 9 is cooled. Water can be recycled. The material treated in the kneader 1 enters the reaction fluorine. Piperazine pyrophosphate is synthesized in the reactor 4. A reactor jacket 16 is provided inside the reactor 4. A temperature display is provided on the side of the reactor 4 to display the temperature inside the inner reactor body 17. Hot water or cold water is introduced into the reactor jacket 16 from the water inlet pipe 21. Water can be recycled from the water outlet pipe 22. The temperature inside the reactor 4 can be increased or decreased to meet the temperature requirements of piperazine pyrophosphate during synthesis. The material enters the centrifuge 6 for dehydration treatment, the liquid discharged from the centrifugal kettle 24 is recovered from the liquid outlet pipe 27, and the material leaks from the discharge port 28 to the spiral feeder 29. The dehydration principle of the centrifuge 6 is the same as the principle of centrifugal drying; the utility model enters the reactor 4 for synthesis after the kneading operation, and then enters the centrifuge 6 for dehydration treatment. The kneader 1 and the reactor 4 are both provided with jackets, and liquids of different temperatures can enter to intervene in the temperature of the kneader 1 and the reactor 4.

[0021] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A piperazine pyrophosphate production device, characterized in that: The piperazine pyrophosphate production device comprises a kneader, a first connecting pipe, a reactor, a second connecting pipe, and a centrifuge, wherein the kneader is connected to the reactor through the first connecting pipe, and the reactor is connected to the centrifuge through the second connecting pipe; The kneading machine includes a mold temperature controller, an output end, a reaction chamber, a driving motor, a coupling, a top cover, a stirring paddle, and a reaction chamber jacket. The mold temperature controller is connected to the reaction chamber, the top cover is connected to the driving motor, the stirring paddle is arranged inside the reaction chamber, the reaction chamber rubber sleeve is arranged inside the reaction chamber, and the driving motor is connected to the coupling; The reactor comprises a reactor jacket, an inner reactor body, a reactor feed port, a stirring roller, a stirring motor, a water inlet pipe, and a water outlet pipe. The reactor jacket is arranged inside the reactor, the inner reactor body is arranged inside the reactor, the reactor feed port is arranged on the top of the reactor, the stirring roller is arranged inside the inner reactor body, the stirring motor is connected to the stirring roller, the water inlet pipe is connected to the reactor, and the water outlet pipe is connected to the reactor; The centrifuge comprises a centrifuge outer bin, a centrifuge kettle, a second drive motor, a centrifuge feed port, a liquid discharge pipe, a discharge port, and a screw feeder. The centrifuge kettle is arranged inside the centrifuge outer bin, the second drive motor is located beside the centrifuge outer bin, the centrifuge feed port is arranged at the top of the centrifuge outer bin, the liquid discharge pipe is located beside the centrifuge outer bin, the discharge port is located at the bottom of the centrifuge outer bin, and the screw feeder is connected to the discharge port.

2. According to a piperazine pyrophosphate production device described in claim 1, it is characterized in that The kneading machine, the reaction kettle and the centrifuge are provided with a support at the bottom.

3. According to a piperazine pyrophosphate production device described in claim 1, it is characterized in that : A lifting pump is arranged on the first connecting pipe, and a lifting pump is arranged on the second connecting pipe.

4. A piperazine pyrophosphate production device according to claim 1, characterized in that: The output end is communicated with the jacket of the reaction chamber, the water inlet pipe and the water outlet pipe are communicated with the jacket of the reaction kettle, and the liquid outlet pipe is connected with the jacket of the centrifuge.

5. A piperazine pyrophosphate production device according to claim 1, characterized in that: A distribution box is arranged beside the kneading machine.

6. A piperazine pyrophosphate production device according to claim 1, characterized in that: One end of the first connecting pipe is connected to the bottom of the reaction tank, and the other end is connected to the inner kettle body. One end of the second connecting pipe is connected to the bottom of the inner kettle body, and the other end is located at the top of the feed port.

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