A kind of preparation device and preparation method of chlorinated paraffin

Abstract

The present invention relates to a preparation device for chlorinated paraffin, and belongs to the technical field of chlorinated paraffin preparation. It comprises a kettle body, wherein a feed pipe, an air inlet pipe and an exhaust pipe are provided through the top of the kettle body, and a discharge pipe is provided through the bottom of the kettle body, and control valves are provided on the feed pipe, the air inlet pipe, the exhaust pipe and the discharge pipe; a fluorescent lamp is provided at the top of the inner wall of one side of the kettle body, and is used for the illumination reaction during preparation; a stirring mechanism is provided in the kettle body and is used for mixing and stirring the materials; and a preparation method is also disclosed. The present invention not only increases the time for cooling water to flow through, but also achieves the function of stirring by designing the water inlet conduit and the water outlet conduit to be movable and rotatable, and cooperates with the setting of the pipe bending, so as to achieve the function of stirring, and the cooling and stirring are combined in the design, which reduces the generation of parts to a certain extent; at the same time, the pipe rotates with the stirring shaft, avoiding the situation where there is a certain temperature difference between the center and the periphery of the traditional kettle body, and improving the accuracy of temperature control.

Description

Technical Field

[0001] The invention belongs to the technical field of chlorinated paraffin preparation and relates to a chlorinated paraffin preparation device and a preparation method. Background Art

[0002] Chlorinated paraffin is an organic substance, a chlorinated derivative of paraffin hydrocarbons, with the advantages of low volatility, flame retardancy, good electrical insulation, and low price. It can be used as a flame retardant and auxiliary plasticizer for polyvinyl chloride. It is widely used in the production of cable materials, floor materials, hoses, artificial leather, rubber and other products. It is also used as an additive for polyurethane waterproof coatings, polyurethane plastic tracks, lubricating oils, etc.

[0003] At present, the production process of chlorinated paraffin generally comprises the following steps: firstly, the paraffin liquid is put into the chlorination reactor through the metering tank, then the fluorescent lamp in the reactor is turned on, and chlorine is introduced; then, the flow meter control valve is opened to keep the chlorine at a constant flow rate, and the cooling device is turned on to control the reaction temperature at 40-60°C; then, the hydrogen chloride and unreacted chlorine in the reactor are removed, and at the same time, during the operation, the relative density and chlorine content of the chlorinated paraffin are checked. When the required chlorine content is reached, the chlorine is stopped, and the cooling water and the fluorescent lamp in the reactor are turned off; then, the reacted chlorinated paraffin is pumped into the degassing tower, degassed for 3-4 hours, and the hydrogen chloride and unreacted chlorine contained therein are removed; finally, the degassed chlorinated paraffin is neutralized to pH 6-7 by adding 40% caustic soda solution while stirring at about 100°C, and the finished product is obtained by filtering the discharged material.

[0004] During the reaction of paraffin liquid and chlorine, the temperature must be controlled by a cooling device, and the cooling device generally uses cooling water heat exchange to cool down. Generally, the cooling device and the stirring device are divided into two independent systems, and a better optimization design cannot be achieved in the equipment structure. In order not to conflict with the stirring device, the cooling water pipe will be set in contact with the inner wall of the reactor. In this setting, cold water can only flow along the outer edge of the reactor, resulting in low heat exchange rate and uneven temperature control. At the same time, chlorine is also input at a fixed point, which makes the reaction effect of chlorine and paraffin liquid poor. Therefore, we propose a preparation device and preparation method of chlorinated paraffin to solve the above-mentioned problems. Summary of the invention

[0005] In view of this, the present invention provides a device and method for preparing chlorinated paraffin in order to solve the problem that the traditional cooling device and the stirring device are operated by two independent systems, which not only makes it impossible to achieve a better optimized design of the equipment in terms of structure, but also has low heat exchange efficiency and uneven temperature control, and at the same time, the fixed-point input of chlorine makes the reaction effect with the paraffin liquid poor.

[0006] To achieve the above object, the present invention provides the following technical solution: comprising a kettle, wherein a feed pipe, an air inlet pipe and an exhaust pipe are provided on the top of the kettle, a discharge pipe is provided on the bottom of the kettle, and control valves are provided on the feed pipe, the air inlet pipe, the exhaust pipe and the discharge pipe;

[0007] A fluorescent lamp is installed on the top of the inner wall of one side of the kettle body and is used for illumination reaction during preparation;

[0008] A stirring mechanism is provided in the kettle body for mixing and stirring the materials;

[0009] The cooling mechanism is arranged in the kettle body to achieve the temperature control effect and is used in conjunction with the stirring mechanism;

[0010] A plurality of supporting legs are respectively fixedly connected to the bottom outer wall of the kettle body and are used for supporting the kettle body.

[0011] Furthermore, the stirring mechanism includes a stirring shaft that passes through and is rotatably connected to the top of the kettle body. The outer wall of the stirring shaft is provided with stirring blades located inside the kettle body. A stirring motor is provided above the top of the kettle body, and the output shaft of the stirring motor is fixedly connected to the top of the stirring shaft through a coupling.

[0012] Furthermore, the cooling mechanism includes a water inlet pipe and a water extraction pipe which pass through the top of the kettle body, the bottom end of the water inlet pipe extends into the kettle body and is connected to a water inlet conduit, the bottom end of the water extraction pipe extends into the kettle body and is connected to a water outlet conduit, and the water outlet conduit is connected to the water inlet conduit, a water pump is fixedly connected to the top outer wall of the kettle body, the water inlet end of the water pump is flange-connected to one end of the water extraction pipe, and the water outlet end of the water pump is flange-connected to a drain pipe.

[0013] Furthermore, a fixed plate is fixedly connected to the top inner wall of the kettle body, one side of the stirring shaft passes through the top center of the fixed plate, and a water inlet chamber and a water outlet chamber are respectively provided inside the fixed plate, and the water inlet chamber and the water outlet chamber are both annular chambers, the water inlet chamber is located outside the water outlet chamber, one end of the water inlet pipe and the water inlet conduit are both connected to the water inlet chamber, and one end of the water pumping pipe and the water outlet conduit are both connected to the water outlet chamber.

[0014] Furthermore, an air delivery cavity located between the water inlet cavity and the water outlet cavity is provided inside the fixed plate, one end of the air inlet pipe is connected to the air delivery cavity, and the bottom of the air delivery cavity is connected to the air outlet pipe.

[0015] Further, the outer wall of the stirring shaft is annularly fixedly connected with a plurality of first connecting rods, one end of the plurality of first connecting rods extending away from each other is fixedly connected with the same first hollow ring, the outer wall of the first hollow ring on one side away from the stirring shaft is annularly fixedly connected with a plurality of second connecting rods, one end of the plurality of second connecting rods extending away from each other is fixedly connected with the same second hollow ring, the outer wall of the second hollow ring on one side away from the stirring shaft is annularly fixedly connected with a plurality of third connecting rods, and one end of the plurality of third connecting rods extending away from each other is fixedly connected with the same third hollow ring. The top ends of the water outlet conduit, the air outlet pipe and the water inlet conduit are fixedly connected to the bottom ends of the first hollow ring, the second hollow ring and the third hollow ring respectively; the top ends of the first hollow ring, the second hollow ring and the third hollow ring are fixedly connected to the outer rotating ring and the inner rotating ring; the bottom inner walls of the water inlet cavity, the air transmission cavity and the water outlet cavity are all provided with a first annular hole, and the outer rotating ring and the inner rotating ring are respectively sealed and rotatably connected to the inner walls on both sides of the first annular hole; the top ends of the first hollow ring, the second hollow ring and the third hollow ring are all provided with a second annular hole located between the outer rotating ring and the inner rotating ring.

[0016] Furthermore, sealing rings are provided on the sides of the outer rotating ring and the inner rotating ring that are away from each other.

[0017] Furthermore, a connecting ring is provided on the outer wall fixing sleeve of the stirring shaft, a water delivery cavity is provided inside the connecting ring, and the ends of the water inlet conduit and the water outlet conduit close to each other are fixedly connected to the water delivery cavity.

[0018] Furthermore, a reinforcement ring is provided on the outer wall fixing sleeve of the stirring shaft, and one side of the water inlet conduit and the water outlet conduit both penetrates the top of the reinforcement ring.

[0019] A method for preparing chlorinated paraffin comprises the following steps:

[0020] S1. First, inject the paraffin liquid into the kettle from the feed pipe, then introduce chlorine gas from the air inlet pipe, and turn on the fluorescent lamp. The chlorine gas flows into the air outlet pipe through the air delivery cavity, and then enters the kettle to react with the paraffin liquid;

[0021] S2, turn on the water pump to allow external cold water to flow from the water inlet pipe into the water inlet cavity, and then into the water inlet conduit to control the temperature of the reactants. The cooling water becomes hot water after heat exchange during the flow, and flows into the water outlet cavity from the water outlet conduit, and finally flows from the water pump pipe to the drain pipe for discharge and storage;

[0022] S3. During the reaction, the stirring motor is started to drive the stirring shaft to rotate, which can drive the stirring blade to rotate, stir the reactants and improve the reaction efficiency;

[0023] S4. When the stirring shaft rotates, the first hollow ring, the second hollow ring and the third hollow ring can be driven to rotate synchronously at the bottom of the fixed plate, and the normal circulation of water and chlorine is not affected during the rotation. At the same time, the water inlet conduit, the water outlet conduit and the air outlet pipe rotate with the rotation of the stirring shaft, which can not only achieve the stirring effect, but also improve the heat exchange rate when the cooling water flows through, and the rotation of the air outlet pipe enables the chlorine and the paraffin liquid to react better;

[0024] S5. After the reaction is completed, the excess gas is discharged from the exhaust pipe for treatment, and the valve is opened to allow the chlorinated paraffin generated by the reaction to be discharged from the discharge pipe.

[0025] The beneficial effects of the present invention are:

[0026] 1. The chlorinated paraffin preparation device disclosed in the present invention can start the stirring motor to drive the stirring shaft to rotate, which can not only make the stirring blade rotate to stir and mix the reactants to improve the reaction efficiency, but also drive the water inlet pipe and the water outlet pipe to rotate, which can improve the heat exchange rate of cooling water and also achieve the stirring effect; at the same time, the stirring shaft can also drive the air outlet pipe to rotate, so that chlorine can be input in multiple directions, and the reaction efficiency is further improved in combination with the stirring effect; and the water inlet pipe, the water outlet pipe and the air outlet pipe will not affect the normal circulation of water and gas during the rotation process;

[0027] 2. The present invention discloses a chlorinated paraffin preparation device. By designing the water inlet conduit and the water outlet conduit to be movable and rotatable, and coordinating with the setting of the pipe bending, not only the time for cooling water to flow through can be increased, but also the stirring function can be achieved. The cooling and stirring are designed in combination, which reduces the production of parts to a certain extent, so that the cooling pipe does not need to be installed in contact with the inner wall of the kettle body; at the same time, the pipe rotates with the stirring shaft, avoiding the situation where there is a certain temperature difference between the center and the periphery of the traditional kettle body, thereby improving the accuracy of temperature control.

[0028] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0030] Figure 1 It is a front cross-sectional view of the overall structure of a chlorinated paraffin preparation device of the present invention;

[0031] Figure 2 A preparation device for chlorinated paraffin of the present invention Figure 1 A further cross-sectional view of the overall structure;

[0032] Figure 3 A preparation device for chlorinated paraffin of the present invention Figure 2 Schematic diagram of the local structure;

[0033] Figure 4 It is a three-dimensional diagram of the connection structure between the fixed plate and the stirring shaft of a chlorinated paraffin preparation device of the present invention;

[0034] Figure 5 A three-dimensional diagram of the internal structure of a fixed disk of a chlorinated paraffin preparation device of the present invention;

[0035] Figure 6 It is a stereoscopic diagram of the connection structure of the first hollow ring, the second hollow ring and the third hollow ring of a chlorinated paraffin preparation device of the present invention;

[0036] Figure 7 It is a top view of the connection structure of the first hollow ring, the second hollow ring and the third hollow ring of a chlorinated paraffin preparation device of the present invention;

[0037] Figure 8 A three-dimensional diagram of the bottom connection structure of a fixed plate of a chlorinated paraffin preparation device of the present invention;

[0038] Fig. 9 The present invention is a cross-sectional view of a connecting ring connection structure of a chlorinated paraffin preparation device.

[0039] 1. Agitator body; 2. Feed pipe; 3. Fixed plate; 4. Water inlet cavity; 5. Air delivery cavity; 6. Water outlet cavity; 7. First annular hole; 8. Water inlet pipe; 9. Stirring shaft; 10. Stirring motor; 11. Stirring blade; 12. First connecting rod; 13. First hollow ring; 14. Second connecting rod; 15. Second hollow ring; 16. Third connecting rod; 17. Third hollow ring; 18. Outer rotating ring; 19. Inner rotating ring; 20. Sealing ring; 21. Water inlet conduit; 22. Connecting ring; 23. Water outlet conduit; 24. Water pump; 25. Water pump; 26. Drain pipe; 27. Second annular hole; 28. Air inlet pipe; 29. ​​Air outlet pipe; 30. Exhaust pipe; 31. Water delivery cavity; 32. Reinforcement ring; 33. Discharge pipe; 34. Support leg; 35. Fluorescent lamp. DETAILED DESCRIPTION

[0040] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0041] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0042] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0043] Embodiment 1

[0044] like Figure 1-Figure 2 As shown, a preparation device for chlorinated paraffin includes a kettle body 1, a plurality of supporting legs 34, and a fluorescent lamp 35. A feed pipe 2, an air inlet pipe 28, and an exhaust pipe 30 are penetrated through the top of the kettle body 1, and a discharge pipe 33 is penetrated through the bottom of the kettle body 1. The feed pipe 2, the air inlet pipe 28, the exhaust pipe 30, and the discharge pipe 33 are all provided with control valves; the fluorescent lamp 35 is arranged on the top of the inner wall of one side of the kettle body 1, and is used for the illumination reaction during preparation; a plurality of supporting legs 34 are respectively fixedly connected to the bottom outer wall of the kettle body 1, and are used for supporting the kettle body 1.

[0045] like Figure 1-Figure 2As shown, the preparation device also includes a stirring mechanism arranged in the kettle body 1, the stirring mechanism includes a stirring shaft 9 that penetrates and rotates to be connected to the top of the kettle body 1, the outer wall of the stirring shaft 9 is provided with a stirring blade 11 located inside the kettle body 1, and a stirring motor 10 is provided above the top of the kettle body 1, and the output shaft of the stirring motor 10 is fixedly connected to the top of the stirring shaft 9 through a coupling. Starting the stirring motor 10 drives the stirring shaft 9 to rotate, which can drive the stirring blade 11 to rotate, thereby achieving a mixing and stirring effect on the materials.

[0046] like Figure 1-Figure 9 As shown, the preparation device also includes a cooling mechanism arranged in the kettle body 1 for temperature control, and the cooling mechanism includes a water inlet pipe 8 and a water extraction pipe 24 which pass through the top of the kettle body 1, the bottom end of the water inlet pipe 8 extends into the kettle body 1 and is connected to a water inlet conduit 21, the bottom end of the water extraction pipe 24 extends into the kettle body 1 and is connected to a water outlet conduit 23, and the water outlet conduit 23 is connected to the water inlet conduit 21, a water pump 25 is fixedly connected to the top outer wall of the kettle body 1, the water inlet end of the water pump 25 is flange-connected to one end of the water extraction pipe 24, and the water outlet end of the water pump 25 is flange-connected to a drain pipe 26. By starting the water pump 25, cold water from the outside can be transported to the water inlet conduit 21 through the water inlet pipe 8, and then flows into the water outlet conduit 23. The flow of cooling water in the kettle body 1 can cool the material, thereby achieving the purpose of temperature control. At the same time, hot water generated by heat exchange flows from the water outlet conduit 23 to the pumping pipe 24, and then is discharged from the drain pipe 26 to a designated place for centralized storage through the water pump 25.

[0047] Embodiment 2

[0048] This embodiment is a further improvement of the previous embodiment: Figure 1-Figure 2 As shown, a preparation device for chlorinated paraffin includes a kettle body 1, a plurality of supporting legs 34, and a fluorescent lamp 35. A feed pipe 2, an air inlet pipe 28, and an exhaust pipe 30 are penetrated through the top of the kettle body 1, and a discharge pipe 33 is penetrated through the bottom of the kettle body 1. The feed pipe 2, the air inlet pipe 28, the exhaust pipe 30, and the discharge pipe 33 are all provided with control valves; the fluorescent lamp 35 is arranged on the top of the inner wall of one side of the kettle body 1, and is used for the illumination reaction during preparation; a plurality of supporting legs 34 are respectively fixedly connected to the bottom outer wall of the kettle body 1, and are used for supporting the kettle body 1.

[0049] like Figure 1-Figure 2 As shown, the preparation device also includes a stirring mechanism arranged in the kettle body 1, the stirring mechanism includes a stirring shaft 9 that penetrates and rotates to be connected to the top of the kettle body 1, the outer wall of the stirring shaft 9 is provided with a stirring blade 11 located inside the kettle body 1, and a stirring motor 10 is provided above the top of the kettle body 1, and the output shaft of the stirring motor 10 is fixedly connected to the top of the stirring shaft 9 through a coupling. Starting the stirring motor 10 drives the stirring shaft 9 to rotate, which can drive the stirring blade 11 to rotate, thereby achieving a mixing and stirring effect on the materials.

[0050] like Figure 1-Figure 9 As shown, the preparation device also includes a cooling mechanism arranged in the kettle body 1 for temperature control, and the cooling mechanism includes a water inlet pipe 8 and a water extraction pipe 24 which pass through the top of the kettle body 1, the bottom end of the water inlet pipe 8 extends into the kettle body 1 and is connected to a water inlet conduit 21, the bottom end of the water extraction pipe 24 extends into the kettle body 1 and is connected to a water outlet conduit 23, and the water outlet conduit 23 is connected to the water inlet conduit 21, a water pump 25 is fixedly connected to the top outer wall of the kettle body 1, the water inlet end of the water pump 25 is flange-connected to one end of the water extraction pipe 24, and the water outlet end of the water pump 25 is flange-connected to a drain pipe 26. By starting the water pump 25, cold water from the outside can be transported to the water inlet conduit 21 through the water inlet pipe 8, and then flows into the water outlet conduit 23. The flow of cooling water in the kettle body 1 can cool the material, thereby achieving the purpose of temperature control. At the same time, hot water generated by heat exchange flows from the water outlet conduit 23 to the pumping pipe 24, and then is discharged from the drain pipe 26 to a designated place for centralized storage through the water pump 25.

[0051] In the present invention, a fixed plate 3 is fixedly connected to the top inner wall of the kettle body 1, one side of the stirring shaft 9 passes through the top center of the fixed plate 3, and a water inlet chamber 4 and a water outlet chamber 6 are respectively provided inside the fixed plate 3, and the water inlet chamber 4 and the water outlet chamber 6 are both annular chambers, the water inlet chamber 4 is located outside the water outlet chamber 6, one end of the water inlet pipe 8 and the water inlet conduit 21 are both connected to the water inlet chamber 4, and one end of the water pumping pipe 24 and the water outlet conduit 23 are both connected to the water outlet chamber 6. Cooling water can flow from the water inlet pipe 8 into the water inlet conduit 21 through the water inlet chamber 4, and hot water after heat exchange can flow from the water outlet conduit 23 into the water pumping pipe 24 through the water outlet chamber 6.

[0052] In the present invention, a gas delivery chamber 5 is provided inside the fixed plate 3 between the water inlet chamber 4 and the water outlet chamber 6, one end of the gas inlet pipe 28 is connected to the gas delivery chamber 5, and the bottom of the gas delivery chamber 5 is connected to the gas outlet pipe 29. During the preparation of chlorinated paraffin, chlorine gas required for the reaction is introduced into the kettle body 1 through the gas inlet pipe 28, and the chlorine gas enters the gas outlet pipe 29 through the gas delivery chamber 5, and then is input into the kettle body 1.

[0053] In the present invention, the outer wall of the stirring shaft 9 is annularly fixedly connected with a plurality of first connecting rods 12, and one end of the plurality of first connecting rods 12 extending away from each other is fixedly connected with the same first hollow ring 13, and the outer wall of the first hollow ring 13 on one side away from the stirring shaft 9 is annularly fixedly connected with a plurality of second connecting rods 14, and one end of the plurality of second connecting rods 14 extending away from each other is fixedly connected with the same second hollow ring 15, and the outer wall of the second hollow ring 15 on one side away from the stirring shaft 9 is annularly fixedly connected with a plurality of third connecting rods 16, and one end of the plurality of third connecting rods 16 extending away from each other is fixedly connected with the same third hollow ring 17, and the water outlet conduit 23 and the air outlet conduit 24 are fixedly connected to the water outlet conduit 23. The top ends of the tube 29 and the water inlet conduit 21 are fixedly connected to the bottom ends of the first hollow ring 13, the second hollow ring 15 and the third hollow ring 17 respectively; the top ends of the first hollow ring 13, the second hollow ring 15 and the third hollow ring 17 are fixedly connected to the outer rotating ring 18 and the inner rotating ring 19; the bottom inner walls of the water inlet cavity 4, the gas transmission cavity 5 and the water outlet cavity 6 are all provided with a first annular hole 7, and the outer rotating ring 18 and the inner rotating ring 19 are respectively sealed and rotatably connected to the inner walls on both sides of the first annular hole 7; the top ends of the first hollow ring 13, the second hollow ring 15 and the third hollow ring 17 are all provided with a second annular hole 27 located between the outer rotating ring 18 and the inner rotating ring 19.

[0054] The cooling water flows into the water inlet chamber 4 from the water inlet pipe 8, and can flow into the third hollow ring 17 through the second annular hole 27 located between the outer rotating ring 18 and the inner rotating ring 19, and then flow into the water inlet conduit 21, and then flow into the first hollow ring 13 from the water outlet conduit 23, and finally enter the water extraction pipe 24 through the water outlet chamber 6, and be discharged from the drain pipe 26; similarly, the chlorine gas enters the gas delivery chamber 5 through the air inlet pipe 28, and can flow into the second hollow ring 15 through the second annular hole 27 located between the outer rotating ring 18 and the inner rotating ring 19, and then flow into the second hollow ring 15 from the air outlet pipe 26. 29 flows out, and when the stirring shaft 9 rotates, it can drive the first hollow ring 13, the second hollow ring 15 and the third hollow ring 17 to rotate synchronously at the bottom of the fixed plate 3, and then drive the water inlet conduit 21, the water outlet conduit 23 and the air outlet pipe 29 to rotate, so that the cooling water can not only flow normally to achieve the cooling effect, but also play the role of stirring, and at the same time can improve the heat exchange rate and the temperature control effect. At the same time, the rotation of the air outlet pipe 29 can make the chlorine gas in the kettle body 1 be multi-directionally input, thereby improving the reaction effect.

[0055] Embodiment 3

[0056] This embodiment is a further improvement of the previous embodiment: Figure 1-Figure 2As shown, a preparation device for chlorinated paraffin includes a kettle body 1, a plurality of supporting legs 34, and a fluorescent lamp 35. A feed pipe 2, an air inlet pipe 28, and an exhaust pipe 30 are penetrated through the top of the kettle body 1, and a discharge pipe 33 is penetrated through the bottom of the kettle body 1. The feed pipe 2, the air inlet pipe 28, the exhaust pipe 30, and the discharge pipe 33 are all provided with control valves; the fluorescent lamp 35 is arranged on the top of the inner wall of one side of the kettle body 1, and is used for the illumination reaction during preparation; a plurality of supporting legs 34 are respectively fixedly connected to the bottom outer wall of the kettle body 1, and are used for supporting the kettle body 1.

[0057] like Figure 1-Figure 2 As shown, the preparation device also includes a stirring mechanism arranged in the kettle body 1, the stirring mechanism includes a stirring shaft 9 that penetrates and rotates to be connected to the top of the kettle body 1, the outer wall of the stirring shaft 9 is provided with a stirring blade 11 located inside the kettle body 1, and a stirring motor 10 is provided above the top of the kettle body 1, and the output shaft of the stirring motor 10 is fixedly connected to the top of the stirring shaft 9 through a coupling. Starting the stirring motor 10 drives the stirring shaft 9 to rotate, which can drive the stirring blade 11 to rotate, thereby achieving a mixing and stirring effect on the materials.

[0058] like Figure 1-Figure 9 As shown, the preparation device also includes a cooling mechanism arranged in the kettle body 1 for temperature control, and the cooling mechanism includes a water inlet pipe 8 and a water extraction pipe 24 which pass through the top of the kettle body 1, the bottom end of the water inlet pipe 8 extends into the kettle body 1 and is connected to a water inlet conduit 21, the bottom end of the water extraction pipe 24 extends into the kettle body 1 and is connected to a water outlet conduit 23, and the water outlet conduit 23 is connected to the water inlet conduit 21, a water pump 25 is fixedly connected to the top outer wall of the kettle body 1, the water inlet end of the water pump 25 is flange-connected to one end of the water extraction pipe 24, and the water outlet end of the water pump 25 is flange-connected to a drain pipe 26. By starting the water pump 25, cold water from the outside can be transported to the water inlet conduit 21 through the water inlet pipe 8, and then flows into the water outlet conduit 23. The flow of cooling water in the kettle body 1 can cool the material, thereby achieving the purpose of temperature control. At the same time, hot water generated by heat exchange flows from the water outlet conduit 23 to the pumping pipe 24, and then is discharged from the drain pipe 26 to a designated place for centralized storage through the water pump 25.

[0059] In the present invention, a fixed plate 3 is fixedly connected to the top inner wall of the kettle body 1, one side of the stirring shaft 9 passes through the top center of the fixed plate 3, and a water inlet chamber 4 and a water outlet chamber 6 are respectively provided inside the fixed plate 3, and the water inlet chamber 4 and the water outlet chamber 6 are both annular chambers, the water inlet chamber 4 is located outside the water outlet chamber 6, one end of the water inlet pipe 8 and the water inlet conduit 21 are both connected to the water inlet chamber 4, and one end of the water pumping pipe 24 and the water outlet conduit 23 are both connected to the water outlet chamber 6. Cooling water can flow from the water inlet pipe 8 into the water inlet conduit 21 through the water inlet chamber 4, and hot water after heat exchange can flow from the water outlet conduit 23 into the water pumping pipe 24 through the water outlet chamber 6.

[0060] In the present invention, a gas delivery chamber 5 is provided inside the fixed plate 3 between the water inlet chamber 4 and the water outlet chamber 6, one end of the gas inlet pipe 28 is connected to the gas delivery chamber 5, and the bottom of the gas delivery chamber 5 is connected to the gas outlet pipe 29. During the preparation of chlorinated paraffin, chlorine gas required for the reaction is introduced into the kettle body 1 through the gas inlet pipe 28, and the chlorine gas enters the gas outlet pipe 29 through the gas delivery chamber 5, and then is input into the kettle body 1.

[0061] In the present invention, the outer wall of the stirring shaft 9 is annularly fixedly connected with a plurality of first connecting rods 12, and one end of the plurality of first connecting rods 12 extending away from each other is fixedly connected with the same first hollow ring 13, and the outer wall of the first hollow ring 13 on one side away from the stirring shaft 9 is annularly fixedly connected with a plurality of second connecting rods 14, and one end of the plurality of second connecting rods 14 extending away from each other is fixedly connected with the same second hollow ring 15, and the outer wall of the second hollow ring 15 on one side away from the stirring shaft 9 is annularly fixedly connected with a plurality of third connecting rods 16, and one end of the plurality of third connecting rods 16 extending away from each other is fixedly connected with the same third hollow ring 17, and the water outlet conduit 23 and the air outlet conduit 24 are fixedly connected to the water outlet conduit 23. The top ends of the tube 29 and the water inlet conduit 21 are fixedly connected to the bottom ends of the first hollow ring 13, the second hollow ring 15 and the third hollow ring 17 respectively; the top ends of the first hollow ring 13, the second hollow ring 15 and the third hollow ring 17 are fixedly connected to the outer rotating ring 18 and the inner rotating ring 19; the bottom inner walls of the water inlet cavity 4, the gas transmission cavity 5 and the water outlet cavity 6 are all provided with a first annular hole 7, and the outer rotating ring 18 and the inner rotating ring 19 are respectively sealed and rotatably connected to the inner walls on both sides of the first annular hole 7; the top ends of the first hollow ring 13, the second hollow ring 15 and the third hollow ring 17 are all provided with a second annular hole 27 located between the outer rotating ring 18 and the inner rotating ring 19.

[0062] The cooling water flows into the water inlet chamber 4 from the water inlet pipe 8, and can flow into the third hollow ring 17 through the second annular hole 27 located between the outer rotating ring 18 and the inner rotating ring 19, and then flow into the water inlet conduit 21, and then flow into the first hollow ring 13 from the water outlet conduit 23, and finally enter the water extraction pipe 24 through the water outlet chamber 6, and be discharged from the drain pipe 26; similarly, the chlorine gas enters the gas delivery chamber 5 through the air inlet pipe 28, and can flow into the second hollow ring 15 through the second annular hole 27 located between the outer rotating ring 18 and the inner rotating ring 19, and then flow into the second hollow ring 15 from the air outlet pipe 26. 29 flows out, and when the stirring shaft 9 rotates, it can drive the first hollow ring 13, the second hollow ring 15 and the third hollow ring 17 to rotate synchronously at the bottom of the fixed plate 3, and then drive the water inlet conduit 21, the water outlet conduit 23 and the air outlet pipe 29 to rotate, so that the cooling water can not only flow normally to achieve the cooling effect, but also play the role of stirring, and at the same time can improve the heat exchange rate and the temperature control effect. At the same time, the rotation of the air outlet pipe 29 can make the chlorine gas in the kettle body 1 be multi-directionally input, thereby improving the reaction effect.

[0063] In the present invention, a sealing ring 20 is provided on the side away from each other of the outer rotating ring 18 and the inner rotating ring 19. By providing the sealing ring 20, the sealing performance of the outer rotating ring 18 and the inner rotating ring 19 can be improved, thereby improving the sealing effect of the first hollow ring 13, the second hollow ring 15 and the third hollow ring 17.

[0064] In the present invention, a connecting ring 22 is fixedly sleeved on the outer wall of the stirring shaft 9, a water delivery cavity 31 is provided inside the connecting ring 22, and the ends of the water inlet conduit 21 and the water outlet conduit 23 close to each other are fixedly connected to the water delivery cavity 31. Through the water delivery cavity 31, the water in the water inlet conduit 21 can flow into the water outlet conduit 23, and at the same time, through the connection of the water inlet conduit 21 and the water outlet conduit 23 with the connecting ring 22 respectively, the stability of the stirring shaft 9 driving the water inlet conduit 21 and the water outlet conduit 23 to rotate can be improved.

[0065] In the present invention, the outer wall fixed sleeve of the stirring shaft 9 is provided with a reinforcing ring 32, and one side of the water inlet conduit 21 and the water outlet conduit 23 both penetrate the top of the reinforcing ring 32. The reinforcing ring 32 can improve the stability of the connection arrangement of the water inlet conduit 21 and the water outlet conduit 23.

[0066] A method for preparing chlorinated paraffin comprises the following steps:

[0067] S1, first inject the paraffin liquid into the kettle body 1 from the feed pipe 2, then introduce chlorine gas from the air inlet pipe 28, and turn on the fluorescent lamp 35, the chlorine gas flows into the air outlet pipe 29 through the air delivery cavity 5, and then enters the kettle body 1 to react with the paraffin liquid;

[0068] S2, turn on the water pump 25, so that the external cold water flows from the water inlet pipe 8 into the water inlet chamber 4, and then flows into the water inlet conduit 21, the temperature of the reactants is controlled, the cooling water is converted into hot water after heat exchange during the flow, and flows into the water outlet chamber 6 from the water outlet conduit 23, and finally flows from the pumping pipe 24 through the water pump 25 to the drain pipe 26 for discharge and storage;

[0069] S3. During the reaction, the stirring motor 10 is started to drive the stirring shaft 9 to rotate, which can drive the stirring blade 11 to rotate, stir the reactants, and improve the reaction efficiency;

[0070] S4. When the stirring shaft 9 rotates, the first hollow ring 13, the second hollow ring 15 and the third hollow ring 17 can be driven to rotate synchronously at the bottom of the fixed plate 3, and the normal circulation of water and chlorine is not affected during the rotation. At the same time, the water inlet conduit 21, the water outlet conduit 23 and the air outlet pipe 29 rotate with the rotation of the stirring shaft 9, which can not only achieve the stirring effect, but also improve the heat exchange rate when the cooling water flows through, and the rotation of the air outlet pipe 29 enables the chlorine and the paraffin liquid to react better;

[0071] S5. After the reaction is completed, the excess gas is discharged from the exhaust pipe 30 for treatment, and the valve is opened to allow the chlorinated paraffin generated by the reaction to be discharged from the discharge pipe 33.

[0072] However, as is well known to those skilled in the art, the working principles and wiring methods of the stirring motor 10, water pump 25, and fluorescent lamp 35 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A device for preparing chlorinated paraffin, characterized in that: include: A kettle body (1), wherein a feed pipe (2), an air inlet pipe (28) and an exhaust pipe (30) are provided through the top of the kettle body (1), a discharge pipe (33) is provided through the bottom of the kettle body (1), and control valves are provided on the feed pipe (2), the air inlet pipe (28), the exhaust pipe (30) and the discharge pipe (33); A fluorescent lamp (35) is disposed on the top of the inner wall of one side of the kettle body (1) and is used for illumination reaction during preparation; A stirring mechanism is arranged in the kettle body (1) and is used for mixing and stirring materials; the stirring mechanism comprises a stirring shaft (9) which penetrates and is rotatably connected to the top of the kettle body (1); the outer wall of the stirring shaft (9) is provided with stirring blades (11) located inside the kettle body (1); a stirring motor (10) is arranged above the top of the kettle body (1); and the output shaft of the stirring motor (10) is fixedly connected to the top of the stirring shaft (9) via a coupling; A cooling mechanism is arranged in the kettle body (1) to achieve a temperature control effect and is used in conjunction with the stirring mechanism; the cooling mechanism comprises a water inlet pipe (8) and a water extraction pipe (24) which are arranged on the top of the kettle body (1); the bottom end of the water inlet pipe (8) extends into the kettle body (1) and is connected to a water inlet conduit (21); the bottom end of the water extraction pipe (24) extends into the kettle body (1) and is connected to a water outlet conduit (23); the water outlet conduit (23) is connected to the water inlet conduit (21); a water pump (25) is fixedly connected to the outer wall of the top of the kettle body (1); the water inlet end of the water pump (25) is flange-connected to one end of the water extraction pipe (24); and the water outlet end of the water pump (25) is flange-connected to a drain pipe (26); A fixed plate (3) is fixedly connected to the inner wall of the top of the kettle body (1); one side of the stirring shaft (9) passes through the center of the top of the fixed plate (3); a water inlet chamber (4) and a water outlet chamber (6) are respectively provided inside the fixed plate (3); the water inlet chamber (4) and the water outlet chamber (6) are both annular chambers; the water inlet chamber (4) is located outside the water outlet chamber (6); one end of the water inlet pipe (8) and the water inlet conduit (21) are both connected to the water inlet chamber (4); and one end of the water pumping pipe (24) and the water outlet conduit (23) are both connected to the water outlet chamber (6); An air delivery cavity (5) located between the water inlet cavity (4) and the water outlet cavity (6) is provided inside the fixed plate (3); one end of an air inlet pipe (28) is connected to the air delivery cavity (5); and the bottom of the air delivery cavity (5) is connected to an air outlet pipe (29); The outer wall of the stirring shaft (9) is annularly fixedly connected to a plurality of first connecting rods (12); one end of the plurality of first connecting rods (12) extending away from each other is fixedly connected to the same first hollow ring (13); the outer wall of the first hollow ring (13) on one side away from the stirring shaft (9) is annularly fixedly connected to a plurality of second connecting rods (14); one end of the plurality of second connecting rods (14) extending away from each other is fixedly connected to the same second hollow ring (15); the outer wall of the second hollow ring (15) on one side away from the stirring shaft (9) is annularly fixedly connected to a plurality of third connecting rods (16); one end of the plurality of third connecting rods (16) extending away from each other is fixedly connected to the same third hollow ring (17); the water outlet conduit (23), the air outlet pipe (29) and the water inlet conduit The top of the hollow ring (21) is fixedly connected to the bottom of the first hollow ring (13), the second hollow ring (15) and the third hollow ring (17), and the top of the first hollow ring (13), the second hollow ring (15) and the third hollow ring (17) are fixedly connected to the outer rotating ring (18) and the inner rotating ring (19), the bottom inner walls of the water inlet chamber (4), the gas transmission chamber (5) and the water outlet chamber (6) are all provided with a first annular hole (7), and the outer rotating ring (18) and the inner rotating ring (19) are respectively connected to the inner walls of both sides of the first annular hole (7) in a sealing and rotatable manner, and the top of the first hollow ring (13), the second hollow ring (15) and the third hollow ring (17) are all provided with a second annular hole (27) located between the outer rotating ring (18) and the inner rotating ring (19); A plurality of support legs (34) are respectively fixedly connected to the bottom outer wall of the kettle body (1) and are used to support the kettle body (1).

2. A chlorinated paraffin preparation device as claimed in claim 1, characterized in that: A sealing ring (20) is provided on each side of the outer rotating ring (18) and the inner rotating ring (19) that are away from each other.

3. A chlorinated paraffin preparation device as claimed in claim 2, characterized in that: The outer wall fixed sleeve of the stirring shaft (9) is provided with a connecting ring (22), the interior of the connecting ring (22) is provided with a water delivery cavity (31), and the ends of the water inlet conduit (21) and the water outlet conduit (23) close to each other are fixedly connected to the water delivery cavity (31).

4. A chlorinated paraffin preparation device as claimed in claim 3, characterized in that: The outer wall fixed sleeve of the stirring shaft (9) is provided with a reinforcement ring (32), and one side of the water inlet conduit (21) and the water outlet conduit (23) both penetrates the top of the reinforcement ring (32).

5. The method for preparing a chlorinated paraffin preparation device according to claim 4, characterized in that: The steps include: S1, first inject the paraffin liquid into the kettle body (1) from the feed pipe (2), then introduce chlorine gas from the air inlet pipe (28), and turn on the fluorescent lamp (35), so that the chlorine gas flows into the air outlet pipe (29) through the air delivery cavity (5), and then enters the kettle body (1) to react with the paraffin liquid; S2, turning on the water pump (25), allowing external cold water to flow from the water inlet pipe (8) into the water inlet chamber (4), and then into the water inlet conduit (21), to control the temperature of the reactants. The cooling water is converted into hot water after heat exchange during the flow, and flows from the water outlet conduit (23) into the water outlet chamber (6), and finally flows from the water pump (24) through the water pump (25) to the drain pipe (26) for discharge and storage; S3. During the reaction process, the stirring motor (10) is started to drive the stirring shaft (9) to rotate, which can drive the stirring blade (11) to rotate, so as to stir the reactants and improve the reaction efficiency; S4. When the stirring shaft (9) rotates, the first hollow ring (13), the second hollow ring (15) and the third hollow ring (17) can be driven to rotate synchronously at the bottom of the fixed plate (3), and the normal circulation of water and chlorine gas is not affected during the rotation. At the same time, the water inlet conduit (21), the water outlet conduit (23) and the air outlet pipe (29) rotate along with the rotation of the stirring shaft (9), which can not only achieve a stirring effect, but also improve the heat exchange rate when the cooling water flows through. In addition, the rotation of the air outlet pipe (29) enables the chlorine gas and the paraffin liquid to react better. S5. After the reaction is completed, the excess gas is discharged from the exhaust pipe (30) for treatment, and the valve is opened to allow the chlorinated paraffin generated by the reaction to be discharged from the discharge pipe (33).

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