Extraction device for phosphorous acid production
By designing a phosphorous acid production extraction device including reaction parts, stirring parts and adjusting parts, the problem of local reaction overheating caused by dropping phosphorus trichloride in the existing device is solved, the uniform distribution of reactants and the reaction efficiency is improved, and the energy utilization efficiency is improved through heat exchange.
Patent Information
- Application Number
- CN202422192034.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-08
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-08
AI Technical Summary
The existing extraction device for the production of phosphorous acid may cause excessive local reaction when adding phosphorus trichloride dropwise, resulting in a sharp increase in the temperature in the reactor.
An extraction device including a reaction member, a stirring member and a regulating member is designed. The dripping position of phosphorus trichloride is changed through the triangular design of the adjustment part to avoid local reaction overheating, and at the same time, the uniform distribution of reactants is achieved by using the stirring part and the motor.
It effectively avoids excessive local reactions, ensures uniform distribution of reactants, improves the efficiency and safety of reactions, and improves energy utilization efficiency through heat exchange and reduces energy consumption.
Smart Images
Figure CN222969833U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of phosphorous acid production equipment, in particular to an extraction device for phosphorous acid production. Background Technique
[0002] As an important chemical raw material and pesticide intermediate, phosphorous acid has a wide range of applications in many fields. With the development of the global economy and the improvement of people's living standards, the demand for phosphorous acid continues to grow. Especially in the fields of agriculture, medicine, electronics, water treatment, etc., the application prospect of phosphorous acid is broad. For example, in the agricultural field, as a plant growth regulator and fertilizer additive, the demand for phosphorous acid continues to grow; in the medical field, phosphorous acid is also used as a raw material for the synthesis of certain drugs, and the market demand is stable.
[0003] At present, when most of the extraction devices for phosphorous acid production on the market are in use, phosphorus trichloride needs to be dropped into water for chemical reaction. Since heat is generated when phosphorus trichloride reacts with water, local reaction may be too intense when dropping at the same position, resulting in a sharp rise in the temperature inside the reaction kettle. Content of the Utility Model
[0004] The purpose of the utility model is to provide an extraction device for phosphorous acid production to solve the problem that local reaction may be too intense when dropping at the same position proposed in the above background technique. To achieve the above purpose, the utility model provides the following technical solution: An extraction device for phosphorous acid production, including a reaction part, the top of the center of the reaction part is fixedly connected with the bottom of a stirring part through bolts, the outer wall of the stirring part is meshed with the outer wall of an adjusting part, and the adjusting part is composed of a rotating shaft, a second bevel gear, a limiting cavity, a fixing rod and an adjusting block.
[0005] One end of the adjusting part is fixedly connected with the inner side wall of the reaction part, the inner wall of the reaction part is movably sleeved with the outer wall of a feeding part near the bottom end, the outer wall of the feeding part away from the bottom end is movably abutted against the outer wall of a gas recovery part, and the outer wall of one end of the gas recovery part is fixedly connected with the inner wall of a pipe groove.
[0006] Preferably, the reaction part is composed of a reaction kettle, a sealing cover, a water injection pipe, a feeding hole, a rotating groove, a pipe groove, a discharge pipe and a fixing frame, and the top of the reaction kettle is fixedly connected with the bottom of the sealing cover through bolts, the inner wall of the sealing cover near the back is fixedly connected with the outer wall of the water injection pipe, and a feeding hole is opened on the inner wall of the sealing cover near the front, a rotating groove is opened on the inner wall of the center of the sealing cover, a pipe groove is opened on the front of the reaction kettle, the inner wall of the bottom of the reaction kettle is fixedly connected with the outer wall of the discharge pipe, and valves are arranged in both the water injection pipe and the discharge pipe, and the outer wall of the reaction kettle is fixedly connected with the inner wall of the fixing frame through bolts.
[0007] Preferably, the stirring member includes a protective block, a motor, a stirring roller, a bearing and a first bevel gear, and the inner wall of the protective block is fixedly connected to the outer wall of the motor. The output end of the motor is fixedly connected to the top end of the stirring roller through a coupling, and the outer wall of the top end of the stirring roller is fixedly connected to the inner wall of the bearing. The outer wall of the stirring roller near the top end is fixedly connected to the inner wall of the first bevel gear, and the outer wall of the bearing is rotatably connected to the inner wall of the rotating groove. The bottom of the protective block is fixedly connected to the top of the center of the sealing cover through bolts.
[0008] Preferably, the outer wall of one end of the rotating shaft is fixedly connected to the inner wall of the second bevel gear, and a limiting cavity is provided at the other end of the rotating shaft. The inner wall of the limiting cavity is rotatably connected to the outer wall of the fixing rod, and the outer walls of the rotating shaft away from both ends are fixedly connected to the inner wall of the adjusting block. The cross-sectional shape of the adjusting block is triangular, and the outer wall of the second bevel gear is meshed with the outer wall of the first bevel gear. The vertical central axis of the adjusting block is aligned with the vertical central axis of the material injection hole, and the end of the fixing rod away from the rotating shaft is fixedly connected to the inner side wall of the reaction kettle.
[0009] Preferably, the material injection member includes a storage barrel, a material injection port and a drip pipe. A material injection port is provided at the top of the storage barrel. The inner wall of the bottom of the storage barrel is fixedly connected to the outer wall of the top end of the drip pipe, and the outer wall of the drip pipe near the storage barrel is movably sleeved with the inner wall of the material injection hole.
[0010] Preferably, the gas recovery member is composed of an air outlet pipe, a heat exchange pipe and a recovery pipe. One end of the air outlet pipe is fixedly connected to the bottom end of the heat exchange pipe. The top end of the heat exchange pipe is fixedly connected to one end of the recovery pipe, and the outer wall of the heat exchange pipe is movably abutted against the outer wall of the storage barrel. The outer wall of the air outlet pipe away from the heat exchange pipe is fixedly connected to the inner wall of the pipe groove, and a valve is provided in the air outlet pipe.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] In the present utility model, water required for the reaction is added to the reaction kettle through a water injection pipe, and phosphorus trichloride is added to the storage barrel through the material injection port. Phosphorus trichloride enters the reaction kettle through the drip pipe. While dripping, the motor is started to drive the stirring roller to rotate in the reaction kettle. When the stirring roller rotates, it drives the second bevel gear to rotate through the first bevel gear, and then the rotating shaft rotates on the fixing rod, and the adjusting block also rotates with the rotating shaft. When the adjusting block rotates, the position where phosphorus trichloride drips can be changed through the triangular design. By changing the dripping position, the overly intense local reaction is avoided, and at the same time, the uniform distribution of the reactants in the reaction kettle is ensured, improving the reaction efficiency and safety.
[0013] In the present utility model, when phosphorus trichloride and water react in a reaction kettle to produce phosphorous acid, high-temperature hydrogen chloride gas is also generated. The gas enters the heat exchange tube through the outlet pipe. The heat exchange tube exchanges heat by contacting the storage bucket, and after heat exchange, it enters the recovery pipe for treatment or subsequent utilization. By preheating the phosphorus trichloride in the storage bucket, the time and energy required for reaction startup can be reduced, enabling the reaction to reach the optimal conditions faster. By utilizing the heat energy in the waste gas, the energy utilization efficiency is improved and the energy consumption is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0015] Figure 2 is a cross-sectional view of the present utility model;
[0016] Figure 3 is an exploded view of the present utility model;
[0017] Figure 4 is an exploded view of the adjusting member in the present utility model;
[0018] Figure 5 is a cross-sectional view of the adjusting member in the present utility model;
[0019] Figure 6 is an exploded view of the feeding member and the gas recovery member in the present utility model.
[0020] In the figure: 1. Reaction member; 101. Reaction kettle; 102. Sealing cover; 103. Water injection pipe; 104. Feeding hole; 105. Rotating groove; 106. Pipe groove; 107. Discharge pipe; 108. Fixed frame; 2. Stirring member; 201. Protective block; 202. Motor; 203. Stirring roller; 204. Bearing; 205. First bevel gear; 3. Adjusting member; 301. Rotating shaft; 302. Second bevel gear; 303. Limiting cavity; 304. Fixed rod; 305. Adjusting block; 4. Feeding member; 401. Storage bucket; 402. Feeding port; 403. Dripping pipe; 5. Gas recovery member; 501. Outlet pipe; 502. Heat exchange pipe; 503. Recovery pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0022] Please refer to Figures 1 to 6, the present utility model provides a technical solution: an extraction device for phosphorous acid production, including a reaction member 1. The top of the center of the reaction member 1 is fixedly connected to the bottom of a stirring member 2 through bolts. The outer wall of the stirring member 2 is meshed with the outer wall of an adjusting member 3. The adjusting member 3 is composed of a rotating shaft 301, a second bevel gear 302, a limiting cavity 303, a fixing rod 304, and an adjusting block 305.
[0023] One end of the adjusting member 3 is fixedly connected to the inner side wall of the reaction member 1. The inner wall of the reaction member 1 is movably sleeved with the outer wall of a feeding member 4 near the bottom end. The outer wall of the feeding member 4 away from the bottom end is movably abutted against the outer wall of a gas recovery member 5. The outer wall of one end of the gas recovery member 5 is fixedly connected to the inner wall of a pipe groove 106.
[0024] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, the reaction member 1 is composed of a reaction kettle 101, a sealing cover 102, a water injection pipe 103, a feeding hole 104, a rotating groove 105, a pipe groove 106, a discharge pipe 107, and a fixing frame 108. The top of the reaction kettle 101 is fixedly connected to the bottom of the sealing cover 102 through bolts. The inner wall of the sealing cover 102 near the back is fixedly connected to the outer wall of the water injection pipe 103. A feeding hole 104 is opened on the inner wall of the sealing cover 102 near the front. A rotating groove 105 is opened on the inner wall of the center of the sealing cover 102. A pipe groove 106 is opened on the front of the reaction kettle 101. The inner wall of the bottom of the reaction kettle 101 is fixedly connected to the outer wall of the discharge pipe 107. Valves are provided in both the water injection pipe 103 and the discharge pipe 107. The outer wall of the reaction kettle 101 is fixedly connected to the inner wall of the fixing frame 108 through bolts. Phosphorus trichloride and water can react in the reaction kettle 101 to produce phosphorous acid.
[0025] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown in the figure, the stirring member 2 includes a protective block 201, a motor 202, a stirring roller 203, a bearing 204, and a first bevel gear 205. The inner wall of the protective block 201 is fixedly connected to the outer wall of the motor 202. The output end of the motor 202 is fixedly connected to the top end of the stirring roller 203 through a coupling. The outer wall of the top end of the stirring roller 203 is fixedly connected to the inner wall of the bearing 204. The outer wall of the stirring roller 203 near the top end is fixedly connected to the inner wall of the first bevel gear 205. The outer wall of the bearing 204 is rotatably connected to the inner wall of the rotating groove 105. The bottom of the protective block 201 is fixedly connected to the top of the center of the sealing cover 102 through bolts. Starting the motor 202 drives the stirring roller 203 to rotate in the reaction kettle 101, so that the reactants are evenly distributed in the reaction kettle 101, improving the reaction efficiency.
[0026] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, the outer wall of one end of the rotating shaft 301 is fixedly connected to the inner wall of the second bevel gear 302. A limiting cavity 303 is provided at the other end of the rotating shaft 301. The inner wall of the limiting cavity 303 is rotatably connected to the outer wall of the fixed rod 304. The outer wall of the rotating shaft 301 far from both ends is fixedly connected to the inner wall of the adjusting block 305. The cross-sectional shape of the adjusting block 305 is set to be triangular. The outer wall of the second bevel gear 302 is meshed with the outer wall of the first bevel gear 205. The vertical central axis of the adjusting block 305 is aligned with the vertical central axis of the material injection hole 104. The end of the fixed rod 304 far from the rotating shaft 301 is fixedly connected to the inner side wall of the reaction kettle 101. When the stirring roller 203 rotates, it drives the second bevel gear 302 to rotate through the first bevel gear 205, so that the rotating shaft 301 rotates on the fixed rod 304, and the adjusting block 305 also rotates following the rotating shaft 301. When the adjusting block 305 rotates, the dropping position of phosphorus trichloride can be changed through the triangular design. By changing the dropping position, the overly intense local reaction is avoided.
[0027] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the charging member 4 includes a storage barrel 401, a charging port 402, and a dropping tube 403. A charging port 402 is provided at the top of the storage barrel 401. The inner wall of the bottom of the storage barrel 401 is fixedly connected to the outer wall of the top end of the dropping tube 403. The outer wall of the dropping tube 403 close to the storage barrel 401 is movably sleeved with the inner wall of the injection hole 104. Water required for the reaction is added to the reaction kettle 101 through the water injection pipe 103, and phosphorus trichloride is added to the storage barrel 401 through the charging port 402. The phosphorus trichloride enters the reaction kettle 101 through the dropping tube 403.
[0028] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the gas recovery member 5 is composed of an air outlet pipe 501, a heat exchange pipe 502, and a recovery pipe 503. One end of the air outlet pipe 501 is fixedly connected to the bottom end of the heat exchange pipe 502. The top end of the heat exchange pipe 502 is fixedly connected to one end of the recovery pipe 503. The outer wall of the heat exchange pipe 502 is movably abutted against the outer wall of the storage barrel 401. The outer wall of the end of the air outlet pipe 501 away from the heat exchange pipe 502 is fixedly connected to the inner wall of the pipe groove 106. A valve is provided in the air outlet pipe 501. When phosphorus trichloride and water react in the reaction kettle 101 to produce phosphorous acid, high-temperature hydrogen chloride gas is also generated. The gas enters the heat exchange pipe 502 through the air outlet pipe 501. The heat exchange pipe 502 performs heat exchange by contacting the storage barrel 401, and then enters the recovery pipe 503 for treatment or subsequent utilization. By preheating the phosphorus trichloride in the storage barrel 401, the time and energy required for the reaction to start can be reduced, enabling the reaction to reach the optimal conditions faster. By utilizing the heat energy in the waste gas, the energy utilization efficiency is improved and the energy consumption is reduced.
[0029] The usage method and advantages of the present utility model: When the extraction device for producing phosphorous acid works, the working process is as follows:
[0030] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown in the figure, water required for the reaction is added to the reactor 101 through the water injection pipe 103, and then phosphorus trichloride is added to the storage barrel 401 through the charging port 402. The phosphorus trichloride enters the reactor 101 through the dropping pipe 403. While dropping the material, the motor 202 is started to drive the stirring roller 203 to rotate in the reactor 101. When the stirring roller 203 rotates, it drives the second bevel gear 302 to rotate through the first bevel gear 205, so that the rotating shaft 301 rotates on the fixed rod 304, and the adjusting block 305 also rotates following the rotating shaft 301. When the adjusting block 305 rotates, the dropping position of the phosphorus trichloride can be changed through the triangular design. By changing the dropping position, the overly intense local reaction is avoided, and at the same time, the uniform distribution of the reactants in the reactor 101 is ensured, improving the reaction efficiency and safety. When phosphorous acid is generated by the reaction of phosphorus trichloride and water in the reactor 101, high-temperature hydrogen chloride gas is also generated. The gas enters the heat exchange pipe 502 through the gas outlet pipe 501. The heat exchange pipe 502 conducts heat exchange by contacting with the storage barrel 401, and after heat exchange, it enters the recovery pipe 503 for treatment or subsequent utilization. By preheating the phosphorus trichloride in the storage barrel 401, the time and energy required for starting the reaction can be reduced, enabling the reaction to reach the optimal conditions faster. By utilizing the heat energy in the waste gas, the energy utilization efficiency is improved and the energy consumption is reduced.
[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Technical staff in this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.
Claims
1. An extraction device for phosphorous acid production, comprising a reaction element (1), characterized in that: The top of the center of the reaction member (1) is fixedly connected to the bottom of the stirring member (2) by bolts, and the outer wall of the stirring member (2) is meshedly connected to the outer wall of the adjustment member (3), and the adjustment member (3) is composed of a rotating shaft (301), a second bevel gear (302), a limiting cavity (303), a fixing rod (304) and an adjustment block (305); One end of the regulating member (3) is fixedly connected to the inner wall of the reaction member (1); the inner wall of the reaction member (1) is movably sleeved with the outer wall of the injection member (4) near the bottom end; the outer wall of the injection member (4) away from the bottom end is movably abutted with the outer wall of the gas recovery member (5); and the outer wall of one end of the gas recovery member (5) is fixedly connected to the inner wall of the pipe groove (106).
2. The extraction device for phosphorous acid production according to claim 1, characterized in that: The reaction part (1) is composed of a reaction kettle (101), a sealing cover (102), a water injection pipe (103), a material injection hole (104), a rotating groove (105), a pipe groove (106), a material discharge pipe (107) and a fixing frame (108), and the top of the reaction kettle (101) is fixedly connected to the bottom of the sealing cover (102) by bolts, and the inner wall of the sealing cover (102) close to the back is fixedly connected to the outer wall of the water injection pipe (103), and the sealing cover (102) close to the back is fixedly connected to the outer wall of the water injection pipe (103). An injection hole (104) is provided on the inner wall near the front, a rotation groove (105) is provided on the inner wall at the center of the sealing cover (102), and a pipe groove (106) is provided on the front of the reactor (101). The inner wall at the bottom of the reactor (101) is fixedly connected to the outer wall of the discharge pipe (107), and valves are provided in the water injection pipe (103) and the discharge pipe (107). The outer wall of the reactor (101) is fixedly connected to the inner wall of the fixing frame (108) by bolts.
3. The extraction device for phosphorous acid production according to claim 2, characterized in that: The stirring member (2) comprises a protective block (201), a motor (202), a stirring roller (203), a bearing (204) and a first bevel gear (205), wherein the inner wall of the protective block (201) is fixedly connected to the outer wall of the motor (202), the output end of the motor (202) is fixedly connected to the top of the stirring roller (203) via a coupling, and the outer wall of the top of the stirring roller (203) is fixedly connected to the inner wall of the bearing (204), the outer wall of the stirring roller (203) close to the top is fixedly connected to the inner wall of the first bevel gear (205), and the outer wall of the bearing (204) is rotatably connected to the inner wall of the rotating groove (105), and the bottom of the protective block (201) is fixedly connected to the top of the center of the sealing cover (102) via bolts.
4. The extraction device for phosphorous acid production according to claim 3, characterized in that: The outer wall of one end of the rotating shaft (301) is fixedly connected to the inner wall of the second bevel gear (302), and the other end of the rotating shaft (301) is provided with a limit cavity (303), the inner wall of the limit cavity (303) is rotatably connected to the outer wall of the fixing rod (304), and the outer wall of the rotating shaft (301) away from the two ends is fixedly connected to the inner wall of the adjusting block (305), the cross-sectional shape of the adjusting block (305) is set to be triangular, and the outer wall of the second bevel gear (302) is meshedly connected to the outer wall of the first bevel gear (205), the vertical center axis of the adjusting block (305) is aligned with the vertical center axis of the injection hole (104), and the end of the fixing rod (304) away from the rotating shaft (301) is fixedly connected to the inner wall of the reaction kettle (101).
5. The extraction device for phosphorous acid production according to claim 2, characterized in that: The injection component (4) comprises a material storage barrel (401), a material injection port (402) and a material dripping tube (403), and the material storage barrel (401) is provided with a material injection port (402) at the top, the inner wall of the bottom of the material storage barrel (401) is fixedly connected to the outer wall of the top of the material dripping tube (403), and the outer wall of the material dripping tube (403) close to the material storage barrel (401) is movably connected to the inner wall of the material injection hole (104).
6. The extraction device for phosphorous acid production according to claim 5, characterized in that: The gas recovery component (5) is composed of an outlet pipe (501), a heat exchange pipe (502) and a recovery pipe (503), and one end of the outlet pipe (501) is fixedly connected to the bottom end of the heat exchange pipe (502), the top end of the heat exchange pipe (502) is fixedly connected to one end of the recovery pipe (503), and the outer wall of the heat exchange pipe (502) is movably abutted against the outer wall of the storage barrel (401), the outer wall of the outlet pipe (501) away from the end of the heat exchange pipe (502) is fixedly connected to the inner wall of the pipe groove (106), and a valve is provided in the outlet pipe (501).