Device and method for reducing stannous chloride ions in neodecanoic acid

Abstract

The invention discloses a device and method for reducing stannous neodecanoate chloride ions, and relates to the technical field of stannous neodecanoate preparation.The device comprises a shell and a switching assembly, a rotating base is arranged in the shell, a barrel is rotationally connected into the rotating base, a motor is fixed to the top of the shell, and the switching assembly is arranged in the shell; and an output shaft of the motor is connected with a first bevel gear set, a stirring shaft is arranged in one end of the first bevel gear set, and stirring blades are arranged on the outer side of the lower portion of the stirring shaft. The centrifugal force is used for controlling the moving position of the sliding block, the rotating state of the barrel body is automatically switched, the barrel body is locked by the positioning rod during low-speed stirring to guarantee the material mixing effect, the extraction efficiency is improved, and during high-speed rotating centrifugation, the centrifugal force triggers mechanical interlocking to achieve synchronous rotation of the stirring shaft and the barrel body; the centrifugal layering effect is prevented from being interfered due to the rotating speed difference between the stirring blades and the barrel body, automatic switching of stirring and centrifugal modes is achieved through the design, and time consumed for switching of traditional equipment is eliminated.

Description

Technical Field

[0001] This invention relates to the field of stannous neodecanoate preparation technology, specifically to a device and method for reducing stannous neodecanoate chloride ions. Background Technology

[0002] Stannous neodecanoate is an organotin compound widely used in the chemical, materials and environmental protection fields. It is often used as a catalyst or stabilizer in the production of polyurethane, PVC and other materials. Stannous neodecanoate is usually produced by the reaction of stannous oxide and neodecanoic anhydride. After the reaction of stannous oxide and neodecanoic anhydride is completed, an organic phase mixture containing crude stannous neodecanoate is obtained. Stannous oxide is prepared by thermal decomposition of stannous chloride dihydrate or alkaline precipitation. It may contain soluble chloride salts, thus generating a small amount of water-soluble byproduct salts.

[0003] Currently, the common practice is to utilize the fact that water-soluble salts (mainly the source of chloride ions) are readily soluble in water, while stannous neodecanoate is soluble in organic solvents but insoluble in water. This is achieved by repeatedly washing and extracting with water to transfer the water-soluble chloride salts from the organic phase to the aqueous phase for removal. Therefore, the water washing method is usually adopted, which involves mechanically stirring the chloride salts to migrate from the organic phase to the aqueous phase, followed by allowing the phases to stand and separate to reduce the chloride ions in stannous neodecanoate. However, this process requires multiple water washings, and the standing and separation process also takes a long time, resulting in low overall processing efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a device and method for reducing stannous chloride ions in neodecanoate, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device and method for reducing stannous chloride ions in neodecanoate, comprising a housing and a switching assembly. A rotating seat is disposed inside the housing, and a barrel is rotatably connected inside the rotating seat. A motor is fixed to the top of the housing, and the output shaft of the motor is connected to a first bevel gear set. A stirring shaft is disposed inside one end of the first bevel gear set, and stirring blades are disposed on the lower outer side of the stirring shaft. The switching assembly is disposed on the top of the barrel, and the switching assembly includes a spring seat. A spring seat is disposed on the top of the barrel, and a support ring is fixed to the top of the spring seat. A positioning rod is disposed on the top of the support ring. A positioning hole is provided on the top of the housing, and the positioning hole matches the positioning rod. A pressure plate is slidably connected to the top of the support ring, and a connecting rod is rotatably connected to the bottom of the pressure plate. A lower slider is rotatably connected to one end of the connecting rod, and a connecting post is fixed to one side of the lower slider. A spring rod is disposed on the top of the lower slider, and an upper slider is connected to the top of the spring rod. A synchronization ring is fixed to the top of the barrel, and a connecting hole is provided on the inner side of the synchronization ring.

[0006] Furthermore, the pressure plate is slidably connected to the stirring shaft via key teeth, and the stirring shaft is hollow.

[0007] Furthermore, the lower slider abuts against the barrel body, and the barrel body is rotatably connected to the stirring shaft.

[0008] Furthermore, the upper part of the upper slider is an isosceles trapezoid, and the upper slider is slidably connected to the pressure plate.

[0009] Furthermore, a reversing assembly is connected to the upper part of the stirring shaft, and the reversing assembly includes a synchronous pulley set. The synchronous pulley set is provided on the upper part of the stirring shaft, and a gear shaft is installed inside one end of the synchronous pulley set. A double-toothed shaft is meshed on one side of the lower part of the gear shaft, and a slide is rotatably connected to one end of the double-toothed shaft. An electric push rod is installed on the upper part of one side of the slide, and a limit frame is connected to one end of the electric push rod. The limit frame is rotatably connected to the gear shaft. A synchronous shaft is fixed to one end of the double-toothed shaft, and a synchronous sleeve is sleeved on the outer side of one end of the synchronous shaft. A second bevel gear set is provided on the outside of the synchronous sleeve.

[0010] Furthermore, the lower part of the second bevel gear set is connected to a water inlet assembly, and the water inlet assembly includes a screw. The lower part of the second bevel gear set is connected to a screw, and a piston plate is threadedly connected to the outside of the screw. A guide rod is slidably connected to one end of the piston plate, and limit springs are provided on both the upper and lower sides of the piston plate. A metering cylinder is fixed to the end of the guide rod, and the metering cylinder is rotatably connected to the screw. A first one-way valve is installed at both the upper and lower ends of one side of the metering cylinder, and a suction tube is fixed to the end of the first one-way valve.

[0011] Furthermore, a second one-way valve is installed at the upper and lower ends of the other side of the metering cylinder, and a water injection pipe is fixed to the end of the second one-way valve. A fixing sleeve is connected to the upper part of the water injection pipe, and the fixing sleeve is rotatably connected to the stirring shaft and fixedly connected to the housing. An inlet is opened on the upper outer side of the stirring shaft, and one-way nozzles are installed on both sides of the stirring blade.

[0012] Furthermore, a collection assembly is provided on the top of the barrel, and the collection assembly includes a liquid outlet. The liquid outlet is opened at the outer end of the top of the barrel, and a sealing plate is slidably connected inside the liquid outlet. A top rod is fixed to one end of the sealing plate, and a return spring is sleeved on the outer side of the middle part of the top rod. One end of the return spring is connected to a fixing frame, and the fixing frame is fixedly connected to the barrel. A collection pipe is rotatably connected to the top of the barrel, and one end of the collection pipe is connected to a collection box, and the collection box is fixedly connected to the shell.

[0013] Furthermore, a flow-stopping assembly is connected to one side of the collection box, and the flow-stopping assembly includes a flow-diverting cylinder. The flow-diverting cylinder is connected to the lower end of one side of the collection box, and a float is provided inside the flow-diverting cylinder. A limit ring is fixed to the top of the float, and the limit ring is slidably connected to the shell. A lifting rope is fixed to both ends of the limit ring, and a counterweight is provided at one end of the lifting rope. A smooth rod is slidably connected to the middle of the lifting rope, and the smooth rod is fixedly connected to the shell.

[0014] Furthermore, the method for reducing stannous chloride ions in neodecanoate, applied to the device for reducing stannous chloride ions in neodecanoate, includes the following steps: Step 1: The organic phase mixture containing crude stannous neodecanoate is injected into the tank through the inlet pipe at the bottom of the tank via a pump. Then, the valve on the inlet pipe is closed, and the motor is started. The motor drives the stirring shaft to rotate through the first bevel gear set. This drives the screw to rotate through the reversing assembly, causing the piston plate to move downward along the guide rod axis. The cleaning liquid is then sent into the interior of the stirring shaft and sprayed out from the one-way nozzle. This ensures that the cleaning liquid is fully mixed with the organic solvent of stannous neodecanoate in each layer during the stirring process. The feeding can be automatically stopped after a specified amount of cleaning liquid is added. During the downward movement of the sealing plate, the external cleaning liquid is also drawn to the upper part of the metering cylinder through the suction pipe and the first one-way valve. Step Two: When the organic solvent of neodecanoic acid stannous and the cleaning solution are stirred and mixed, the spring seat will push the support ring, so that the positioning rod is inserted into the positioning hole, which can prevent the barrel from rotating. After the chloride salt is extracted into the aqueous phase by stirring and mixing, the speed of the stirring shaft can be increased, so that the lower slide has a greater centrifugal force. Therefore, it can pull the connecting rod, so that the pressure plate squeezes the support ring, and the positioning rod will separate from the positioning hole, automatically releasing the rotation restriction of the barrel. At the same time, the barrel will also rotate under the drive of the internal liquid, thereby reducing the speed difference between the synchronization ring and the lower slide. As the speed continues to increase, the spring rod will limit the lower slide to stick to the top of the barrel under the limit of the upper slide. Then the connecting column will contact the synchronization ring and be inserted into the connecting hole, so that the stirring shaft and the barrel are synchronized. Thus, in the subsequent centrifugal stratification process, the speed difference between the stirring blade and the barrel will not interfere with the centrifugal stratification effect. Step 3: During centrifugation, the return spring will push the sealing plate under the limit of the fixed frame, blocking the outlet. This will maintain the position for a period of time during centrifugation, allowing the chlorine-containing aqueous phase to move to the upper outer end of the tank. Then, the rotation speed will be increased so that the centrifugal force of the sealing plate is greater than the elastic force of the return spring, thus automatically opening the outlet. The chlorine-containing aqueous phase inside will then enter the collection tank through the manifold for collection. At the same time, the water level inside the diverter will rise, causing the float to move upward. After collecting a certain amount of aqueous phase, the float will drive the limiting ring to squeeze the top rod, pushing the sealing plate to block the outlet and prevent the organic phase from flowing out. Step 4: When the machine is stopped, open the valve of the collection tank to collect the chlorine-containing aqueous phase. Then start the electric push rod, which will drive the double gear shaft to move through the slide, thereby switching the meshing state of the two bevel gears on the double gear shaft and the bevel gear on the gear shaft, thus changing the rotation direction of the screw. When cleaning again, repeat the above operation. The limit spring will push the piston plate to make it fit tightly against the thread on the screw, which will make the piston plate move up to inject water into the tank. This will ensure that a specified amount of cleaning solution is injected in each water washing process, without the need for careful measurement by personnel, which is convenient for subsequent quantitative discharge of the aqueous phase. Step 5: After the water washing is completed, open the valve of another pipe at the bottom of the tank to discharge the organic solvent of neodecanoic acid stannous solvent, so as to avoid contamination with the liquid inlet.

[0015] This invention provides a device and method for reducing stannous chloride ions in neodecanoate, which has the following beneficial effects: 1. This invention utilizes centrifugal force to control the movement of the slider, automatically switching the rotation state of the barrel. During low-speed stirring, the positioning rod locks the barrel to ensure the mixing effect of the materials and improve extraction efficiency. During high-speed centrifugation, the centrifugal force triggers a mechanical interlock to achieve synchronous rotation of the stirring shaft and the barrel, avoiding interference with the centrifugal stratification effect due to the speed difference between the stirring blades and the barrel. This design realizes automatic switching of stirring and centrifugation modes, eliminates the time consumption of traditional equipment conversion, greatly improves the efficiency of water washing and separation, and avoids phase layer disturbance, ensuring the continuous purification quality of organic solvents.

[0016] 2. In this invention, the stirring shaft drives the screw to rotate via a reversing assembly, thereby moving the piston plate a specified distance. This ensures precise and quantitative dispensing of the cleaning solution. During injection, the cleaning solution is sprayed from a nozzle on the stirring blade, allowing it to fully mix with the organic solvent of neodecanoic acid stannous in each layer during stirring. This improves extraction efficiency. Simultaneously, it automatically replenishes the cleaning solution to the other side of the piston plate. In subsequent injections, simply activating the electric push rod and switching the meshing state of the double-toothed shaft and gear shaft changes the screw's rotation direction, enabling the next quantitative water injection.

[0017] 3. In the centrifugation process, the reset spring can maintain the closure of the sealing plate to ensure centrifugation stability. When separating the aqueous phase, the centrifugal force exceeds the spring threshold and automatically opens the liquid outlet. After the specified aqueous phase is discharged, the float rod and the limiting ring push the top rod to close the sealing plate and prevent the organic phase from being discharged. Therefore, no additional manual operation is required during the liquid separation process, making it more convenient. Attached Figure Description

[0018] Figure 1 This is a three-dimensional front view schematic diagram of the device for reducing stannous chloride ions in neodecanoate according to the present invention; Figure 2This is a schematic diagram of the internal structure of the housing of a device for reducing stannous chloride ions in neodecanoate according to the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the barrel of the device for reducing stannous chloride ions of neodecanoate according to the present invention; Figure 4 This is a three-dimensional structural diagram of the stirring shaft of a device for reducing stannous chloride ions in neodecanoate according to the present invention; Figure 5 This is a three-dimensional structural diagram of a switching component for a device to reduce stannous chloride ions in neodecanoate according to the present invention; Figure 6 This is a three-dimensional structural diagram of a commutation component for a device to reduce stannous chloride ions in neodecanoate according to the present invention; Figure 7 This is a three-dimensional rear view schematic diagram of the overall structure of the device for reducing stannous chloride ions in neodecanoate according to the present invention.

[0019] In the diagram: 1. Shell; 2. Rotating seat; 3. Barrel body; 4. Motor; 5. First bevel gear set; 6. Stirring shaft; 7. Stirring blade; 8. Switching assembly; 801. Spring seat; 802. Support ring; 803. Positioning rod; 804. Positioning hole; 805. Pressure plate; 806. Connecting rod; 807. Lower slider; 808. Connecting column; 809. Spring rod; 810. Upper slider; 811. Synchronous ring; 812. Connecting hole; 9. Reversing assembly; 901. Synchronous pulley set; 902. Gear shaft; 903. Double gear shaft; 904. Slide seat; 905. Electric push rod; 906. Limit frame; 907. Synchronous shaft; 908. Synchronous sleeve; 909. Second bevel gear set; 10. Water inlet assembly; 01. Screw; 1002. Piston plate; 1003. Guide rod; 1004. Limiting spring; 1005. Metering cylinder; 1006. First one-way valve; 1007. Suction pipe; 1008. Second one-way valve; 1009. Water injection pipe; 1010. Fixing sleeve; 1011. Liquid inlet; 1012. One-way nozzle; 11. Collection assembly; 1101. Liquid outlet; 1102. Sealing plate; 1103. Top rod; 1104. Return spring; 1105. Fixing frame; 1106. Combining pipe; 1107. Collection box; 12. Flow-stopping assembly; 1201. Diverting cylinder; 1202. Float rod; 1203. Limiting ring; 1204. Lifting rope; 1205. Counterweight; 1206. Smooth rod. Detailed Implementation

[0020] Please see Figures 1 to 5This invention provides a technical solution: a device and method for reducing stannous chloride ions in neodecanoate, comprising a housing 1 and a switching assembly 8. A rotating seat 2 is disposed inside the housing 1, and a barrel 3 is rotatably connected inside the rotating seat 2. A motor 4 is fixed to the top of the housing 1, and the output shaft of the motor 4 is connected to a first bevel gear set 5. A stirring shaft 6 is disposed inside one end of the first bevel gear set 5, and a stirring blade 7 is disposed on the lower outer side of the stirring shaft 6. The switching assembly 8 is disposed on the top of the barrel 3, and the switching assembly 8 includes a spring seat 801. The spring seat 801 is disposed on the top of the barrel 3, and a support ring 802 is fixed to the top of the spring seat 801. A positioning rod 803 is disposed on the top of the support ring 802. A positioning hole 804 is provided on the top of the housing 1, and the positioning hole 804 is connected to a positioning rod 803. Matching the position rod 803, the top of the support ring 802 is slidably connected to the pressure plate 805, and the bottom of the pressure plate 805 is rotatably connected to the connecting rod 806. The pressure plate 805 is slidably connected to the stirring shaft 6 through key teeth, and the stirring shaft 6 is hollow. One end of the connecting rod 806 is rotatably connected to the lower slider 807, and a connecting post 808 is fixed on one side of the lower slider 807. The lower slider 807 abuts against the barrel 3, and the barrel 3 is rotatably connected to the stirring shaft 6. A spring rod 809 is provided on the top of the lower slider 807, and an upper slider 810 is connected to the top of the spring rod 809. The upper part of the upper slider 810 is an isosceles trapezoid, and the upper slider 810 is slidably connected to the pressure plate 805. A synchronization ring 811 is fixed on the top of the barrel 3, and a connecting hole 812 is opened on the inner side of the synchronization ring 811. The specific operation is as follows: When the organic solvent of neodecanoic stannous acid is stirred and mixed with the cleaning solution, the spring seat 801 pushes the support ring 802, causing the positioning rod 803 to be inserted into the positioning hole 804, thus preventing the barrel 3 from rotating. At this time, the motor 4 drives the stirring shaft 6 to rotate through the first bevel gear set 5, which enables the stirring blade 7 to stir and mix the internal materials, extracting chloride salts into the aqueous phase. Meanwhile, since the stirring speed is usually lower than the centrifugal speed, the centrifugal force obtained by the lower slider 807 is small, and it cannot pull the pressure plate 805 down through the connecting rod 806. After stirring and mixing to extract chloride salts into the aqueous phase, the speed of the stirring shaft 6 can be increased, so that the lower slider 807 obtains a larger centrifugal force. Therefore, it can pull the connecting rod 806, causing the pressure plate 805 to squeeze the support ring 802, and the positioning rod 803 will then be separated from the positioning hole 804. Upon separation, the rotation restriction of the barrel 3 is automatically released. Simultaneously, driven by the internal liquid, the barrel 3 will also rotate, thereby reducing the speed difference between the synchronization ring 811 and the lower slider 807. As the speed continues to increase, the spring rod 809 will limit the lower slider 807 to adhere to the top of the barrel 3 under the constraint of the upper slider 810. Then, the connecting column 808 will contact the synchronization ring 811 and be inserted into the connecting hole 812, thus synchronizing the stirring shaft 6 with the barrel 3. This avoids interference with the centrifugal stratification effect due to the speed difference between the stirring blade 7 and the barrel 3 during the subsequent centrifugal stratification process, facilitating the rapid separation of the aqueous phase from the barrel 3 without a long waiting time, thereby improving the water washing efficiency. At the same time, the stirring mode and centrifugation mode can be switched by the rotation speed without the need for other equipment, which is beneficial to improving the convenience of operation.

[0021] Please see Figure 1 , Figure 4 , Figure 6 and Figure 6A reversing assembly 9 is connected to the upper part of the stirring shaft 6, and the reversing assembly 9 includes a synchronous pulley set 901. The synchronous pulley set 901 is provided on the upper part of the stirring shaft 6, and a gear shaft 902 is installed inside one end of the synchronous pulley set 901. A double gear shaft 903 meshes with the lower side of the gear shaft 902, and a slide 904 is rotatably connected to one end of the double gear shaft 903. An electric push rod 905 is installed on the upper side of one side of the slide 904, and one end of the electric push rod 905 is connected to a... A limiting frame 906 is rotatably connected to a gear shaft 902. A synchronous shaft 907 is fixed to one end of a double-tooth shaft 903, and a synchronous sleeve 908 is sleeved on the outer side of one end of the synchronous shaft 907. A second bevel gear set 909 is provided outside the synchronous sleeve 908. A water inlet assembly 10 is connected to the lower part of the second bevel gear set 909, and the water inlet assembly 10 includes a screw 1001. The screw 1001 is connected to the lower part of the second bevel gear set 909. A piston plate 1002 is threaded onto the outside of the screw 1001. A guide rod 1003 is slidably connected to one end of the piston plate 1002. Limit springs 1004 are provided on both the upper and lower sides of the piston plate 1002. A metering cylinder 1005 is fixed to the end of the guide rod 1003, and the metering cylinder 1005 is rotatably connected to the screw 1001. A first one-way valve 1006 is installed at both the upper and lower ends of one side of the metering cylinder 1005, and a suction valve is fixed to the end of the first one-way valve 1006. The liquid pipe 1007 and the metering cylinder 1005 are equipped with a second one-way valve 1008 at the upper and lower ends on the other side. The end of the second one-way valve 1008 is fixed with a water injection pipe 1009. The upper part of the water injection pipe 1009 is connected to a fixing sleeve 1010. The fixing sleeve 1010 is rotatably connected to the stirring shaft 6 and is fixedly connected to the housing 1. The upper outer side of the stirring shaft 6 is provided with a liquid inlet 1011. One-way nozzles 1012 are arranged on both sides of the stirring blade 7. The specific operation is as follows: When adding cleaning solution for water washing, as the stirring shaft 6 rotates, it also drives the screw 1001 to rotate through the synchronous belt pulley group 901, gear shaft 902, double gear shaft 903, synchronous shaft 907, synchronous sleeve 908, and second bevel gear group 909. This causes the piston plate 1002 to move downwards along the axial direction of the guide rod 1003, sending the internal cleaning solution into the interior of the stirring shaft 6 through the second one-way valve 1008, water injection pipe 1009, fixed sleeve 1010, and liquid inlet 1011, and spraying it out from the one-way nozzle 1012. This ensures that the cleaning solution is fully mixed with the organic solvent of neodecanoic acid stannous in each layer during the stirring process, which is beneficial to improving the efficiency of extraction. At the same time, when the piston plate 1002 separates from the threaded groove on the outside of the screw 1001, it will not continue to move downwards. Therefore, when a specified amount of cleaning solution is added... Then the feeding will automatically stop, and during the downward movement of the sealing plate 1102, a negative pressure will be formed on its upper part, which will draw the external cleaning liquid to the upper part of the piston plate 1002 through the suction pipe 1007 and the first one-way valve 1006. Then, before the next water injection cleaning, simply start the electric push rod 905 to drive the double gear shaft 903 to move through the slide 904, thereby switching the meshing state of the two bevel gears on the double gear shaft 903 and the bevel gear on the gear shaft 902, thereby changing the rotation direction of the screw 1001. At the same time, the limit spring 1004 will push the piston plate 1002 to make it fit tightly against the thread on the screw 1001, so that the piston plate 1002 can move upward to inject water into the tank 3, thereby realizing that a specified amount of cleaning liquid can be injected in each water washing process without the need for careful measurement by personnel, which facilitates the subsequent quantitative discharge of the aqueous phase.

[0022] Please see Figures 1 to 5 The top of the barrel 3 is provided with a collection assembly 11, which includes a liquid outlet 1101. The liquid outlet 1101 is opened at the outer end of the top of the barrel 3, and a sealing plate 1102 is slidably connected inside the liquid outlet 1101. A top rod 1103 is fixed to one end of the sealing plate 1102, and a return spring 1104 is sleeved on the outer side of the middle part of the top rod 1103. One end of the return spring 1104 is connected to a fixing frame 1105, and the fixing frame 1105 is fixedly connected to the barrel 3. A collection pipe 1106 is rotatably connected to the top of the barrel 3, and one end of the collection pipe 1106 is connected to a collection box 1107. 07 is fixedly connected to the shell 1. A flow-stopping component 12 is connected to one side of the collection box 1107. The flow-stopping component 12 includes a diverter cylinder 1201. The lower end of one side of the collection box 1107 is connected to the diverter cylinder 1201. A float 1202 is provided inside the diverter cylinder 1201. A limit ring 1203 is fixed to the top of the float 1202. The limit ring 1203 is slidably connected to the shell 1. A lifting rope 1204 is fixed to both ends of the limit ring 1203. A counterweight block 1205 is provided at one end of the lifting rope 1204. A smooth rod 1206 is slidably connected to the middle of the lifting rope 1204. The smooth rod 1206 is fixedly connected to the shell 1. The specific operation is as follows: During centrifugation, the reset spring 1104, under the limitation of the fixed frame 1105, pushes the sealing plate 1102 to block the outlet 1101, thus maintaining this position for a period of time during centrifugation. Simultaneously, because the barrel 3 is conical, the chlorinated aqueous phase moves to the upper outer end of the barrel 3. Then, the rotation speed is increased, causing the centrifugal force of the sealing plate 1102 to exceed the elastic force of the reset spring 1104, thus automatically opening the outlet 1101. The chlorinated aqueous phase inside then enters the collection tank 1107 through the manifold 1106 for collection. At the same time, because the lower part of the diverter 1201 is adjacent to the lower part of the collection tank 1107... The connection is established, so the water level inside the diversion cylinder 1201 will rise, thereby driving the float 1202 to move upward. After collecting a certain amount of water phase, the float 1202 will drive the limiting ring 1203 to squeeze the top rod 1103. Since the return spring 1104 will offset most of the centrifugal force of the top rod 1103, it is easier to push. The counterweight 1205 will pull the limiting ring 1203 through the suspension rope 1204 to offset the weight of the limiting ring 1203. Therefore, the buoyancy of the float 1202 alone is enough to drive the limiting ring 1203. After collecting a specified amount of water phase, the top rod 1103 will push the sealing plate 1102 to block the outlet 1101 and prevent the internal organic phase from flowing out.

[0023] In summary, this device and method for reducing stannous neodecanoate chloride ions involves first injecting an organic phase mixture containing crude stannous neodecanoate into the tank 3 via a pump through the inlet pipe at the bottom of the tank 3. Then, the valve on the inlet pipe is closed, and the motor 4 is started, causing it to drive the stirring shaft 6 via the first bevel gear set 5. This allows the stirring blades 7 to agitate the internal materials. Simultaneously, the rotation of the stirring shaft 6 also drives the screw 1001 to rotate via the synchronous pulley set 901, gear shaft 902, double gear shaft 903, synchronous shaft 907, synchronous sleeve 908, and second bevel gear set 909. This causes the piston plate 1002 to move downwards along the axial direction of the guide rod 1003, thus agitating the internal materials. The cleaning solution is fed into the interior of the stirring shaft 6 through the second one-way valve 1008, water injection pipe 1009, fixed sleeve 1010 and liquid inlet 1011, and sprayed out from the one-way nozzle 1012. This allows the cleaning solution to be fully mixed with the organic solvent of neodecanoic acid stannous in each layer during the stirring process, which is beneficial to improve the efficiency of extraction. At the same time, when the piston plate 1002 separates from the thread on the outside of the screw 1001, it will not continue to move down. Therefore, the feeding will automatically stop after adding a specified amount of cleaning solution. During the downward movement of the sealing plate 1102, a negative pressure will be formed on its upper part, which can draw the external cleaning solution to the upper part of the metering cylinder 1005 through the suction pipe 1007 and the first one-way valve 1006. Next, when the organic solvent of neostannous decanate is stirred and mixed with the cleaning solution, the spring seat 801 pushes the support ring 802, causing the positioning rod 803 to insert into the positioning hole 804, thus preventing the barrel 3 from rotating. At this time, the motor 4 drives the stirring shaft 6 to rotate through the first bevel gear set 5, which enables the stirring blades 7 to stir and mix the internal materials, extracting chloride salts into the aqueous phase. Meanwhile, since the stirring speed is usually lower than the centrifugal speed, the centrifugal force obtained by the lower slider 807 is small at this time, and it is not possible to pull the pressure plate 805 down through the connecting rod 806. After stirring and mixing to extract chloride salts into the aqueous phase, the speed of the stirring shaft 6 can be increased, so that the lower slider 807 obtains a larger centrifugal force, thus pulling the connecting rod 806 and causing the pressure plate 805 to squeeze the support ring. 802, the positioning rod 803 will separate from the positioning hole 804, automatically releasing the rotation restriction of the barrel 3. At the same time, the barrel 3 will also rotate under the drive of the internal liquid, thereby reducing the speed difference between the synchronization ring 811 and the lower slider 807. As the speed continues to increase, the spring rod 809 will make the lower slider 807 stick to the top of the barrel 3 under the limit of the upper slider 810. Then the connecting column 808 will contact the synchronization ring 811 and be inserted into the connecting hole 812, so that the stirring shaft 6 and the barrel 3 can be synchronized. In the subsequent centrifugal stratification process, the speed difference between the stirring blade 7 and the barrel 3 will be avoided, which will interfere with the centrifugal stratification effect. It is convenient to quickly separate the aqueous phase from the barrel 3 without spending a long time to achieve this, thereby improving the washing efficiency. Then, during centrifugation, the return spring 1104, limited by the fixed frame 1105, pushes the sealing plate 1102 to block the outlet 1101, thus maintaining this position for a period of time. Simultaneously, because the barrel 3 is conical, the chlorinated aqueous phase moves to the upper outer end of the barrel 3. Then, by increasing the rotation speed, the centrifugal force of the sealing plate 1102 exceeds the elastic force of the return spring 1104, automatically opening the outlet 1101. The chlorinated aqueous phase then enters the collection tank 1107 through the manifold 1106 for collection. At the same time, since the lower part of the diverter 1201 is connected to the lower part of the collection tank 1107... Therefore, the water level inside the diversion cylinder 1201 will rise, thereby driving the float 1202 to move upward. After collecting a certain amount of water phase, the float 1202 will drive the limiting ring 1203 to squeeze the top rod 1103. Since the return spring 1104 will offset most of the centrifugal force of the top rod 1103, it is easier to push. The counterweight 1205 will pull the limiting ring 1203 through the suspension rope 1204 to offset the weight of the limiting ring 1203. Therefore, the buoyancy of the float 1202 alone is enough to drive the limiting ring 1203. Thus, after collecting a specified amount of water phase, the top rod 1103 will push the sealing plate 1102 to block the outlet 1101 and prevent the internal organic phase from flowing out. Finally, when the machine is stopped, the valve of the collection box 1107 is opened to collect the chlorine-containing aqueous phase. Then, the electric push rod 905 is started, which drives the double gear shaft 903 to move through the slide 904, thereby switching the meshing state of the two bevel gears on the double gear shaft 903 and the bevel gear on the gear shaft 902, thus changing the rotation direction of the screw 1001. When cleaning again, the above operation is repeated. The limit spring 1004 will push the piston plate 1002 to make it fit tightly against the thread on the screw 1001, so that the piston plate 1002 can move upward to inject water into the tank 3. This allows a specified amount of cleaning solution to be injected during each water washing process without the need for careful measurement by personnel, which facilitates the subsequent quantitative discharge of the aqueous phase. After the water washing is completed, the stannous neodecanoate organic solvent is discharged through another pipe below the tank 3 to avoid contamination with the liquid inlet pipe.

[0024] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A device for reducing stannous chloride ions in neodecanoate, characterized in that, The assembly includes a housing (1) and a switching component (8). A rotating seat (2) is disposed inside the housing (1), and a barrel (3) is rotatably connected inside the rotating seat (2). A motor (4) is fixed to the top of the housing (1), and the output shaft of the motor (4) is connected to a first bevel gear set (5). A stirring shaft (6) is disposed inside one end of the first bevel gear set (5), and stirring blades (7) are disposed on the lower outer side of the stirring shaft (6). The switching component (8) is disposed on the top of the barrel (3), and includes a spring seat (801). The spring seat (801) is disposed on the top of the barrel (3), and a support ring (802) is fixed to the top of the spring seat (801). A support ring (802) is disposed on the top of the support ring (802). The positioning rod (803) has a positioning hole (804) on the top of the housing (1), and the positioning hole (804) matches the positioning rod (803). The top of the support ring (802) is slidably connected to the pressure plate (805), and the bottom of the pressure plate (805) is rotatably connected to the connecting rod (806). One end of the connecting rod (806) is rotatably connected to the lower slider (807), and a connecting column (808) is fixed on one side of the lower slider (807). A spring rod (809) is provided on the top of the lower slider (807), and an upper slider (810) is connected to the top of the spring rod (809). A synchronization ring (811) is fixed on the top of the barrel (3), and a connecting hole (812) is provided on the inner side of the synchronization ring (811).

2. The device for reducing stannous chloride ions in neodecanoate according to claim 1, characterized in that, The pressure plate (805) is slidably connected to the stirring shaft (6) via key teeth, and the stirring shaft (6) is hollow.

3. The device for reducing stannous chloride ions in neodecanoate according to claim 1, characterized in that, The sliding block (807) abuts against the barrel (3), and the barrel (3) is rotatably connected to the stirring shaft (6).

4. The device for reducing stannous chloride ions in neodecanoate according to claim 1, characterized in that, The upper part of the upper slider (810) is an isosceles trapezoid, and the upper slider (810) is slidably connected to the pressure plate (805).

5. The device for reducing stannous chloride ions in neodecanoate according to claim 1, characterized in that, The upper part of the stirring shaft (6) is connected to a reversing assembly (9), and the reversing assembly (9) includes a synchronous pulley group (901). The upper part of the stirring shaft (6) is provided with a synchronous pulley group (901), and a gear shaft (902) is installed inside one end of the synchronous pulley group (901). A double toothed shaft (903) is meshed on one side of the lower part of the gear shaft (902), and a slide (904) is rotatably connected to one end of the double toothed shaft (903). An electric push rod (905) is installed on the upper part of one side of the slide (904), and a limit frame (906) is connected to one end of the electric push rod (905). The limit frame (906) is rotatably connected to the gear shaft (902). A synchronous shaft (907) is fixed to one end of the double toothed shaft (903), and a synchronous sleeve (908) is sleeved on the outside of one end of the synchronous shaft (907). A second bevel gear group (909) is provided on the outside of the synchronous sleeve (908).

6. The device for reducing stannous chloride ions in neodecanoate according to claim 5, characterized in that, The lower part of the second bevel gear set (909) is connected to a water inlet assembly (10), and the water inlet assembly (10) includes a screw (1001). The lower part of the second bevel gear set (909) is connected to a screw (1001), and a piston plate (1002) is threadedly connected to the outside of the screw (1001). A guide rod (1003) is slidably connected to one end of the piston plate (1002), and limit springs (1004) are provided on both the upper and lower sides of the piston plate (1002). A metering cylinder (1005) is fixed to the end of the guide rod (1003), and the metering cylinder (1005) is rotatably connected to the screw (1001). A first one-way valve (1006) is installed at both the upper and lower ends of one side of the metering cylinder (1005), and a suction tube (1007) is fixed to the end of the first one-way valve (1006).

7. The device for reducing stannous chloride ions in neodecanoate according to claim 6, characterized in that, The other side of the metering cylinder (1005) is equipped with a second one-way valve (1008) at both the upper and lower ends, and the end of the second one-way valve (1008) is fixed with a water injection pipe (1009). The upper part of the water injection pipe (1009) is connected to a fixing sleeve (1010), and the fixing sleeve (1010) is rotatably connected to the stirring shaft (6), and the fixing sleeve (1010) is fixedly connected to the housing (1). The upper outer side of the stirring shaft (6) is provided with a liquid inlet (1011), and the two sides of the stirring blade (7) are equipped with one-way nozzles (1012).

8. The device for reducing stannous chloride ions in neodecanoate according to claim 7, characterized in that, The top of the barrel (3) is provided with a collection component (11), and the collection component (11) includes a liquid outlet (1101). The outer end of the top of the barrel (3) is provided with a liquid outlet (1101), and a sealing plate (1102) is slidably connected inside the liquid outlet (1101). One end of the sealing plate (1102) is fixed with a top rod (1103), and a return spring (1104) is sleeved on the outer side of the middle part of the top rod (1103). One end of the return spring (1104) is connected with a fixing frame (1105), and the fixing frame (1105) is fixedly connected to the barrel (3). The top of the barrel (3) is rotatably connected with a collection pipe (1106), and one end of the collection pipe (1106) is connected with a collection box (1107), and the collection box (1107) is fixedly connected to the shell (1).

9. The device for reducing stannous chloride ions in neodecanoate according to claim 8, characterized in that, A flow-stopping assembly (12) is connected to one side of the collection box (1107), and the flow-stopping assembly (12) includes a flow-diverting cylinder (1201). The flow-diverting cylinder (1201) is connected to the lower end of one side of the collection box (1107), and a float (1202) is provided inside the flow-diverting cylinder (1201). A limit ring (1203) is fixed to the top of the float (1202), and the limit ring (1203) is slidably connected to the shell (1). A lifting rope (1204) is fixed to both ends of the limit ring (1203), and a counterweight (1205) is provided at one end of the lifting rope (1204). A smooth rod (1206) is slidably connected to the middle of the lifting rope (1204), and the smooth rod (1206) is fixedly connected to the shell (1).

10. A method for reducing stannous chloride ions in neodecanoate, characterized in that, The apparatus for reducing stannous chloride ions in neodecanoate as described in any one of claims 1-9 comprises the following steps: Step 1: The organic phase mixture containing crude stannous neodecanoate is injected into the barrel (3) through the inlet pipe at the bottom of the barrel (3) via the pump body. Then, the valve on the inlet pipe is closed, and the motor (4) is started, so that it drives the stirring shaft (6) to rotate through the first bevel gear set (5). The screw (1001) is driven to rotate through the reversing assembly (9), so that the piston plate (1002) moves down along the axial direction of the guide rod (1003), and the internal cleaning liquid is sent into the interior of the stirring shaft (6) and sprayed out from the one-way nozzle (1012). Thus, during the stirring process, the cleaning liquid is fully mixed with the organic solvent of each layer of stannous neodecanoate. Moreover, after adding a specified amount of cleaning liquid, the feeding can be automatically stopped. During the process of the sealing plate (1102) moving down, the external cleaning liquid will be drawn to the upper part of the metering cylinder (1005) through the suction pipe (1007) and the first one-way valve (1006). Step 2: When the organic solvent of neodecanoic acid stannous and the cleaning solution are stirred and mixed, the spring seat (801) will push the support ring (802), so that the positioning rod (803) is inserted into the positioning hole (804), which can prevent the barrel (3) from rotating. After the chloride salt is extracted into the aqueous phase by stirring and mixing, the speed of the stirring shaft (6) can be increased, so that the lower slide (807) obtains a larger centrifugal force. Therefore, the connecting rod (806) can be pulled, so that the pressure plate (805) squeezes the support ring (802). The positioning rod (803) will then separate from the positioning hole (804), automatically releasing the rotation restriction of the barrel (3). At the same time, the internal Driven by the liquid, the barrel (3) will also rotate, thereby reducing the speed difference between the synchronization ring (811) and the lower slider (807). As the speed continues to increase, the spring rod (809) will make the lower slider (807) stick to the top of the barrel (3) under the limit of the upper slider (810). Then the connecting column (808) will contact the synchronization ring (811) and be inserted into the connecting hole (812), so that the stirring shaft (6) and the barrel (3) can be synchronized. Thus, in the subsequent centrifugal stratification process, the speed difference between the stirring blade (7) and the barrel (3) will be avoided from interfering with the centrifugal stratification effect. Step 3: During centrifugation, the reset spring (1104) will push the sealing plate (1102) under the limit of the fixed frame (1105), blocking the outlet (1101). This will maintain the chlorine-containing aqueous phase for a period of time during centrifugation, allowing it to move to the upper outer end of the barrel (3). Then, the rotation speed will be increased, making the centrifugal force of the sealing plate (1102) greater than the elastic force of the reset spring (1104), thus automatically opening the outlet (1101). The chlorine-containing aqueous phase will enter the collection tank (1107) through the manifold (1106) to collect the chlorine-containing aqueous phase. At the same time, the water level inside the diverter (1201) will rise, thereby driving the float (1202) to move upward. After collecting a certain amount of aqueous phase, the float (1202) will drive the limiting ring (1203) to squeeze the top rod (1103), pushing the sealing plate (1102) to block the outlet (1101) and prevent the organic phase from flowing out. Step 4: When the machine is stopped, open the valve of the collection box (1107) to collect the chlorine-containing aqueous phase. Then start the electric push rod (905) to drive the double gear shaft (903) to move through the slide (904), thereby switching the meshing state of the two bevel gears on the double gear shaft (903) and the bevel gear on the gear shaft (902), thereby changing the rotation direction of the screw (1001). When cleaning again, repeat the above operation. The limit spring (1004) will push the piston plate (1002) to make it fit tightly with the thread on the screw (1001), so that the piston plate (1002) can move up to inject water into the barrel (3), thereby realizing that a specified amount of cleaning liquid can be injected in each water washing process without the need for personnel to measure carefully, which is convenient for subsequent quantitative discharge of the aqueous phase. Step 5: After the water washing is completed, open the valve of another pipe below the barrel (3) to discharge the organic solvent of neodecanoic acid stannous solvent, so as to avoid contamination with the liquid inlet pipe.

Images