Low-water-content methyl ethyl ketone peroxide purification kettle

Abstract

The utility model relates to the technical field of purification kettles, in particular to a low-water-content methyl ethyl ketone peroxide purification kettle, which is characterized in that reaction raw materials are mixed through a mixing device, the production efficiency of equipment is improved, butanone required in the reaction process is uniformly and slowly dripped into the mixing device through a liquid dropping device, and the production efficiency is improved. The total amount of liquid needed in the single liquid dropping process is controlled through the quantifying device, the stability of equipment production is improved, the cooling area is adjusted through the cooling device according to the height of the liquid level in the mixing device, and therefore the energy utilization rate of equipment and the practicability of the device are improved; comprising a mixing device, a liquid dropping device, a quantifying device and a cooling device, the liquid dropping device is installed on the mixing device, the quantifying device is installed on the mixing device and connected with the liquid dropping device, and the cooling device is installed on the mixing device.

Description

Technical Field

[0001] The utility model relates to the technical field of purification kettles, in particular to a low-water-content methyl ethyl ketone peroxide purification kettle. Background Art

[0002] Methyl ethyl ketone peroxide is a ketone peroxide. Methyl ethyl ketone peroxide has the advantages of low price, good performance, room temperature stability, easy use, and easy mixing with resins. It is widely used as an initiator for unsaturated resins. It is also used as an initiator, bleaching agent, and fungicide for organic synthesis. It is one of the most widely used organic peroxides in the world. The activity of methyl ethyl ketone peroxide is mainly determined by the specific active oxygen content. The higher the active oxygen content, the greater its activity, but the higher the danger. Since some products of methyl ethyl ketone peroxide are miscible with water, the moisture in the product cannot be completely removed. During the reaction, butanone needs to be slowly added to the reactor for reaction.

[0003] The Chinese utility model patent with application number CN202023064131.6 in the prior art involves a polyethylene cracking, separation and purification kettle, including a feed inlet, a heavy impurity discharge outlet, a sampling port, a gas introduction device, a vacuum pumping device and a cooling box, etc., which can carry out material inspection on the purified material to ensure the purification effect and reduce production costs.

[0004] However, the above device does not have the ability to slowly drip liquid in actual use. At the same time, the cooling area of ​​the above device is fixed and cannot be adjusted according to the height of the internal liquid level, thereby causing energy waste. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a low-water-content methyl ethyl ketone peroxide purification kettle, which is capable of mixing reaction raw materials through a mixing device, thereby improving the production efficiency of the equipment, uniformly and slowly dripping butanone required in the reaction process into the mixing device through a dripping device, controlling the total amount of liquid required for a single dripping process through a quantitative device, thereby improving the stability of equipment production, and adjusting the cooling area according to the liquid level height in the mixing device through a cooling device, thereby improving the energy utilization rate of the equipment and the practicality of the device.

[0006] The utility model discloses a low-water-content methyl ethyl ketone peroxide purification kettle, which comprises a mixing device, a dripping device, a quantitative device and a cooling device, wherein the dripping device is installed on the mixing device, the quantitative device is installed on the mixing device and connected with the dripping device, and the cooling device is installed on the mixing device; reaction raw materials are mixed by the mixing device, thereby improving the production efficiency of the equipment; butanone required in the reaction process is dripped into the mixing device evenly and slowly by the dripping device; the total amount of liquid required in a single dripping process is controlled by the quantitative device, thereby improving the stability of equipment production; the cooling area is adjusted according to the liquid level height in the mixing device by the cooling device, thereby improving the energy utilization rate of the equipment and the practicability of the device.

[0007] Preferably, the mixing device includes a reaction bin, legs, a drain valve, a reducer, a motor and a stirring rod. The lower part of the reaction bin is supported by the legs. A discharge port is arranged on the lower end surface of the reaction bin, and a drain valve is installed on the discharge port. A reducer is installed on the upper end surface of the reaction bin, and a motor is installed on the reducer. The output end of the reducer extends through the upper end surface of the reaction bin to the interior of the reaction bin and is connected to the stirring rod. When the motor is turned on, the power is transmitted to the stirring rod through the reducer to drive the stirring rod to rotate, thereby driving the stirring rod to rotate and mix the reactants in the reaction bin, thereby improving the reaction efficiency of the equipment, and controlling the discharge of the reactants in the reaction bin through the drain valve.

[0008] Preferably, the dripping device includes an annular tube, a first solenoid valve and a dripping tube. The annular tube is installed on the upper end surface of the reaction chamber, and multiple groups of dripping tubes are evenly installed on the top surface inside the reaction chamber. The multiple groups of dripping tubes are all located on the lower side of the annular tube and connected to the inside of the annular tube. The upper part of the dripping tube is installed with a first solenoid valve. The liquid in the annular tube is controlled by the first solenoid valve to pass into the dripping tube and drip, and the liquid can drip out evenly from the multiple groups of dripping tubes through the annular tube, so that the dripping liquid can be evenly distributed inside the reaction chamber, thereby improving the practicability of the device.

[0009] Preferably, the quantitative device includes a liquid storage tank, a second solenoid valve, a quantitative cylinder, an electric cylinder, a piston and a third solenoid valve. The liquid storage tank is installed on the upper end surface of the reaction chamber through a support leg, and the quantitative cylinder is installed on the lower end surface of the liquid storage tank. The upper part of the quantitative cylinder and the lower part of the liquid storage tank are connected by a pipeline, and the second solenoid valve is installed on the pipeline. The electric cylinder is installed on the side of the quantitative cylinder. The moving end of the electric cylinder passes through the side of the quantitative cylinder and extends to the inside of the quantitative cylinder and is connected to the piston. The lower part of the quantitative cylinder is provided with a liquid outlet, and the liquid outlet is located on the side away from the electric cylinder. The third solenoid valve is installed on the liquid outlet. The output end of the solenoid valve and the third solenoid valve are connected to the annular tube through a pipeline; the second solenoid valve is opened and the electric cylinder is controlled to contract, so as to extract the liquid in the liquid storage tank, and the amount of liquid extracted at a single time is controlled by controlling the extension of the electric cylinder, and then the second solenoid valve is closed and the third solenoid valve is opened, and then the extension of the electric cylinder is controlled to drive the piston to press the liquid in the metering cylinder into the inside of the annular tube. There is no need for the operator to manually weigh the amount of liquid, and it can cooperate with the dripping device to complete the automatic quantitative dripping operation, which reduces the labor intensity of the operator and improves the practicability of the device.

[0010] Preferably, it also includes a fourth solenoid valve and an exhaust pipe, the upper end surface of the annular tube is connected to the exhaust pipe, the upper part of the exhaust pipe is bent downward, and the lower part of the exhaust pipe is installed with the fourth solenoid valve; when the quantitative device pushes the liquid in the quantitative cylinder into the annular tube, the fourth solenoid valve is opened to facilitate the discharge of the air in the annular tube, and the curved structure at the top of the exhaust pipe can reduce the pollution to the internal environment caused by external dust entering the annular tube during daily use, thereby improving the practicability of the device.

[0011] Preferably, the cooling device includes a thermal insulation jacket, a fifth solenoid valve, a liquid inlet pipe and a liquid discharge pipe. The thermal insulation jacket is mounted on the side of the reaction chamber. A plurality of groups of annular heat exchange tubes are evenly distributed in the thermal insulation jacket from top to bottom. A group of fifth solenoid valves are installed on the input end and the output end of the heat exchange tube. A liquid discharge pipe and a liquid inlet pipe are fixed on the side of the thermal insulation jacket. The input end of the heat exchange tube is connected to the liquid inlet pipe through a hose, and the output end of the heat exchange tube is connected to the liquid discharge pipe through a hose. The low-temperature liquid is introduced into the liquid inlet pipe, and the fifth solenoid valve below the corresponding liquid level is controlled to open according to the liquid level height in the reaction chamber, so that the low-temperature liquid is introduced into the heat exchange tube below the liquid level height, so as to cool the reaction liquid in the reaction chamber, thereby improving the energy utilization rate in the heat exchange process of the device and improving the practicability of the device.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the reaction raw materials are mixed by the mixing device, thereby improving the production efficiency of the equipment; the butanone required in the reaction process is evenly and slowly dripped into the mixing device by the dripping device; the total amount of liquid required for a single dripping process is controlled by the quantitative device, thereby improving the stability of equipment production; the cooling area is adjusted according to the liquid level height in the mixing device by the cooling device, thereby improving the energy utilization rate of the equipment and the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a first axonometric structural schematic diagram of the utility model;

[0014] Figure 2 It is a second axonometric structural schematic diagram of the utility model;

[0015] Figure 3 It is a first cross-sectional structural schematic diagram of the utility model;

[0016] Figure 4 It is a second cross-sectional structural schematic diagram of the utility model;

[0017] Figure 5 It is a partial enlarged structural schematic diagram of the utility model;

[0018] Markings in the attached drawings: 1. reaction chamber; 2. support leg; 3. drain valve; 4. reducer; 5. motor; 6. stirring rod; 7. annular tube; 8. first solenoid valve; 9. drip tube; 10. liquid storage tank; 11. second solenoid valve; 12. metering cylinder; 13. electric cylinder; 14. piston; 15. third solenoid valve; 16. fourth solenoid valve; 17. exhaust pipe; 18. insulation jacket; 19. fifth solenoid valve; 20. liquid inlet pipe; 21. drain pipe. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0020] Example

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The dripping device is installed on the mixing device, the dosing device is installed on the mixing device, and the cooling device is installed on the mixing device;

[0022] First, the motor 5 is turned on to transmit power to the stirring rod 6 through the reducer 4 to drive the stirring rod 6 to rotate, thereby driving the stirring rod 6 to rotate and mix the reactants in the reaction chamber 1, then the second solenoid valve 11 is opened and the electric cylinder 13 is controlled to contract, thereby extracting the liquid in the liquid storage tank 10, and the amount of liquid extracted at a single time is controlled by controlling the extension of the electric cylinder 13, then the second solenoid valve 11 is closed and the third solenoid valve 15 is opened, and then the electric cylinder 13 is controlled to extend to drive the piston 14 to press the liquid in the metering cylinder 12 into the annular tube 7, and the fourth solenoid valve 16 is opened at the same time, so as to facilitate the discharge of air in the annular tube 7, and then multiple groups of first solenoid valves 8 are opened to drip liquid from multiple groups of dropper tubes 9 into the reaction chamber 1, and then the low-temperature liquid is introduced into the liquid inlet pipe 20, and the fifth solenoid valve 19 below the corresponding liquid level is controlled to open according to the liquid level height in the reaction chamber 1, so as to allow the low-temperature liquid to pass into the heat exchange tube below the liquid level height, so as to cool the reaction liquid in the reaction chamber 1;

[0023] The mixing device comprises a reaction bin 1, legs 2, a drain valve 3, a reducer 4, a motor 5 and a stirring rod 6. The lower part of the reaction bin 1 is supported by the legs 2. A discharge port is arranged on the lower end surface of the reaction bin 1, and the drain valve 3 is installed on the discharge port. A reducer 4 is installed on the upper end surface of the reaction bin 1, and the motor 5 is installed on the reducer 4. The output end of the reducer 4 passes through the upper end surface of the reaction bin 1 and extends to the interior of the reaction bin 1 and is connected to the stirring rod 6.

[0024] The dripping device includes an annular tube 7, a first solenoid valve 8 and a dripping tube 9. The annular tube 7 is installed on the upper end surface of the reaction chamber 1. Multiple groups of dripping tubes 9 are evenly installed on the top surface of the reaction chamber 1. The multiple groups of dripping tubes 9 are all located at the lower side of the annular tube 7 and connected to the inside of the annular tube 7. The first solenoid valve 8 is installed on the upper part of the dripping tube 9.

[0025] The quantitative device includes a liquid storage tank 10, a second solenoid valve 11, a quantitative cylinder 12, an electric cylinder 13, a piston 14 and a third solenoid valve 15. The liquid storage tank 10 is installed on the upper end surface of the reaction chamber 1 through a leg, and the quantitative cylinder 12 is installed on the lower end surface of the liquid storage tank 10. The upper part of the quantitative cylinder 12 and the lower part of the liquid storage tank 10 are connected by a pipeline, and the second solenoid valve 11 is installed on the pipeline. The electric cylinder 13 is installed on the side of the quantitative cylinder 12. The moving end of the electric cylinder 13 passes through the side of the quantitative cylinder 12 and extends to the inside of the quantitative cylinder 12 and is connected to the piston 14. The lower part of the quantitative cylinder 12 is provided with a liquid outlet, and the liquid outlet is located on the side away from the electric cylinder 13. The third solenoid valve 15 is installed on the liquid outlet, and the output end of the third solenoid valve 15 is connected with the annular tube 7 through a pipeline;

[0026] It also includes a fourth solenoid valve 16 and an exhaust pipe 17. The exhaust pipe 17 is connected to the upper end surface of the annular pipe 7. The upper part of the exhaust pipe 17 is bent downward, and the fourth solenoid valve 16 is installed at the lower part of the exhaust pipe 17.

[0027] The cooling device includes a heat preservation jacket 18, a fifth solenoid valve 19, a liquid inlet pipe 20 and a liquid discharge pipe 21. The heat preservation jacket 18 is mounted on the side of the reaction chamber 1. Multiple groups of annular heat exchange tubes are evenly distributed from top to bottom in the heat preservation jacket 18. A group of fifth solenoid valves 19 are installed on the input end and the output end of the heat exchange tube. The liquid discharge pipe 21 and the liquid inlet pipe 20 are fixed on the side of the heat preservation jacket 18. The input end of the heat exchange tube is connected to the liquid inlet pipe 20 through a hose, and the output end of the heat exchange tube is connected to the liquid discharge pipe 21 through a hose.

[0028] The reaction raw materials are mixed by a mixing device, thereby improving the production efficiency of the equipment; the butanone required in the reaction process is dripped into the mixing device evenly and slowly by a dripping device; the total amount of liquid required for a single dripping process is controlled by a quantitative device, thereby improving the stability of equipment production; the cooling area is adjusted according to the liquid level height in the mixing device by a cooling device, thereby improving the energy utilization rate of the equipment and the practicality of the device.

[0029] The drain valve 3, reducer 4, motor 5, fourth solenoid valve 16, fifth solenoid valve 19, second solenoid valve 11, electric cylinder 13, third solenoid valve 15 and first solenoid valve 8 of a low-water content methyl ethyl ketone peroxide purification kettle of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for creative labor by technicians in this field.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A low-water content methyl ethyl ketone peroxide purification kettle; characterized in that, The invention comprises a mixing device, a liquid dripping device, a quantitative device and a cooling device, wherein the liquid dripping device is installed on the mixing device, the quantitative device is installed on the mixing device and connected to the liquid dripping device, and the cooling device is installed on the mixing device; the quantitative device comprises a liquid storage tank (10), a second electromagnetic valve (11), a quantitative cylinder (12), an electric cylinder (13), a piston (14) and a third electromagnetic valve (15); the liquid storage tank (10) is installed on the upper end surface of the reaction chamber (1) through a support leg, the quantitative cylinder (12) is installed on the lower end surface of the liquid storage tank (10), the upper part of the quantitative cylinder (12) and the lower part of the liquid storage tank (10) are connected through a pipeline, the second electromagnetic valve (11) is installed on the pipeline, the electric cylinder (13) is installed on the side of the quantitative cylinder (12), the movable end of the electric cylinder (13) passes through the side of the quantitative cylinder (12) and extends to the inside of the quantitative cylinder (12) and connects with the movable end of the movable end. The reaction chamber (1) is connected with a stopper (14), a liquid outlet is arranged at the lower part of the quantitative cylinder (12), the liquid outlet is located on a side away from the electric cylinder (13), a third electromagnetic valve (15) is installed on the liquid outlet, and the output end of the third electromagnetic valve (15) is connected with the annular tube (7) through a pipeline; the cooling device comprises a heat-insulating jacket (18), a fifth electromagnetic valve (19), a liquid inlet pipe (20) and a liquid discharge pipe (21), a heat-insulating jacket (18) is mounted on the side of the reaction chamber (1), a plurality of groups of annular heat exchange tubes are evenly distributed from top to bottom in the heat-insulating jacket (18), a group of fifth electromagnetic valves (19) are installed on the input end and the output end of the heat exchange tube, a liquid discharge pipe (21) and a liquid inlet pipe (20) are fixed on the side of the heat-insulating jacket (18), the input end of the heat exchange tube is connected with the liquid inlet pipe (20) through a hose, and the output end of the heat exchange tube is connected with the liquid discharge pipe (21) through a hose.

2. A low-water content methyl ethyl ketone peroxide purification kettle as claimed in claim 1, characterized in that: The mixing device comprises a reaction chamber (1), a support leg (2), a liquid discharge valve (3), a reducer (4), a motor (5) and a stirring rod (6); the lower part of the reaction chamber (1) is supported by the support leg (2); a discharge port is arranged on the lower end surface of the reaction chamber (1); the liquid discharge valve (3) is installed on the discharge port; a reducer (4) is installed on the upper end surface of the reaction chamber (1); the motor (5) is installed on the reducer (4); and the output end of the reducer (4) passes through the upper end surface of the reaction chamber (1) and extends to the interior of the reaction chamber (1) to be connected to the stirring rod (6).

3. A low-water content methyl ethyl ketone peroxide purification kettle as claimed in claim 2, characterized in that: The liquid dripping device comprises an annular tube (7), a first electromagnetic valve (8) and a liquid dripping tube (9); the annular tube (7) is installed on the upper end surface of the reaction chamber (1); a plurality of groups of liquid dripping tubes (9) are evenly installed on the top end surface of the reaction chamber (1); the plurality of groups of liquid dripping tubes (9) are all located at the lower side of the annular tube (7) and connected to the inside of the annular tube (7); and the first electromagnetic valve (8) is installed on the upper part of the liquid dripping tube (9).

4. A low-water content methyl ethyl ketone peroxide purification kettle as claimed in claim 3, characterized in that: It also includes a fourth solenoid valve (16) and an exhaust pipe (17). The upper end surface of the annular tube (7) is connected to the exhaust pipe (17). The upper part of the exhaust pipe (17) is bent downward, and the lower part of the exhaust pipe (17) is installed with the fourth solenoid valve (16).

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